Title of Invention	APPARATUS FOR STRIPPING FIBRE MATERIAL FROM TEXTILE FIBRE BALES OF SPINNING MATERIAL, FOR EXAMPLE COTTON, SYNTHETIC FIBRES AND THE LIKE
Abstract	In an apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like, by means of a milling apparatus or the like, wherein a tower, which can 10 be moved to and fro in relation to the fibre material by means of a carriage, which has a travel motor or the like, has at least one boom, which is provided with the milling apparatus and which extends in a transverse direction to the direction of movement, and the boom together with the 15 stripping apparatus can be moved in the height direction of the tower by means of a lifting motor or the like, a movable distance sensor is provided for determination of the location in the length direction. In order to make possible, by simple means, an exact 20 determination of location in the length and/or height direction, a movable optical distance sensor scans, for location determination in the length and/or height direction, the distances to a counterpart element that is immovable relative to the distance sensor and that is

Title of Invention

APPARATUS FOR STRIPPING FIBRE MATERIAL FROM TEXTILE FIBRE BALES OF SPINNING MATERIAL, FOR EXAMPLE COTTON, SYNTHETIC FIBRES AND THE LIKE

Abstract

In an apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like, by means of a milling apparatus or the like, wherein a tower, which can 10 be moved to and fro in relation to the fibre material by means of a carriage, which has a travel motor or the like, has at least one boom, which is provided with the milling apparatus and which extends in a transverse direction to the direction of movement, and the boom together with the 15 stripping apparatus can be moved in the height direction of the tower by means of a lifting motor or the like, a movable distance sensor is provided for determination of the location in the length direction. In order to make possible, by simple means, an exact 20 determination of location in the length and/or height direction, a movable optical distance sensor scans, for location determination in the length and/or height direction, the distances to a counterpart element that is immovable relative to the distance sensor and that is

Full Text	- 1 - 5 Apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like 10 The- invention relates to an apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like, by means of a milling apparatus or the like, wherein a tower, which can be moved to and fro in relation to the 15 fibre material by means of a carriage, which has a travel motor or the like, has at least one boom, which is provided with the milling apparatus and which extends in a transverse direction to the direction of movement, and the boom together with the stripping apparatus can be moved in 20 the height direction of the tower by means of a lifting motor or the like, a movable distance sensor being provided for determination of the location in the length direction. In a known apparatus (DE-A- 37 22 317), the stripping apparatus is provided with sensors which register the 25 distance of the stripping apparatus from a wall or the like - .2 - where the row of bales terminates. Control lines lead, to a switch-over device or to a control unit by means of which the stripping apparatus can be reversed at the end of the movement of the stripping apparatus. The sensors are 5 proximity sensors which iniciate the slowing-down or reversal procedure in good time before the wall is reached. Using chose sensors it is not possible to ascertain the location of the carriage exactly. In addition, it is disadvantageous that the sensors nave to act over a 10 relatively large distance in the horizontal direction in order that the travel speed of the heavy machine resulting from the substantial weight of the carriage and the tower together with the boom, for example 2.8 tonnes, can be reliably slowed down in good time without damage. A sensor 15 that acts in the height direction is not provided because neither a slowing-down procedure nor a reversal procedure is carried out in the height direction. The problem underlying the invention is accordingly to provide an apparatus of the kind described at the beginning 20 that avoids the mentioned disadvantages and that especially makes possible, by simple means, an exact determination of location in the length and/or height direction. The problem is solved by the characterising features of claim l. 25 . As a result of the fact that an optical distance sensor scans a sloping surface, for example a ramp or the like. - 3 - large distances are calculate very exactly by means of relatively small distance measurements. It is especially advantageous that for measurement of just small distances economically priced distance sensors can be used. In 5 addition, distance measurement performed over a short distance is more exact (focussed) because scattered light losses are minimised. Mounting of the optical distance sensors is simple. Overall, position detection [location determination) that is maintenance-free and free from wear 10 is made possible. Irrespective of the position and the work region in which the machine is located, the control (evaluation device) calculates the position (location) of the lower carriage or removal device immediately after the machine has been switched on. Finally, no slippage is 15 present. Claims 2 to 31 contain advantageous developments of the invention. The invention will be described hereinafter in greater detail with reference to embodiments shown in the drawings-, 20 in which: Fig- 1a. shows in. a diagrammatic side view, the apparatus according to the invention, at a bale opener having a location.- modifiable distance sensor and a 25 stationary counterpart element, for - 4 - location determination in the length direction.; Fig-. 1b shows the carriage together with the distance sensor and a counterpart 5 element in ramp form; Fig. 1c shows the distance between the distance sensor and the base surface of the counterpart element, the angle of inclination of the ramp between the base 10 surface and the sloping surface, the distance between the distance sensor and the sloping surface, the difference between the distances of the distance sensor from the ba.se surface and from 15 the sloping surface, and the distance of the location from a starting point; Fig. 1d shows the distance sensor, having a transmitter and received; Fig. 2a shows, in a diagrammatic front view, the 20 apparatus according to the invention, at the bale opener according to Fig. 1a, for location determination in the height direction; Fig. 2b shows the boom together with the 25 distance sensor and a counterpart element in ramp form; - 5- Fig. 3, shows a further embodiment of the invention, wherein a distance sensor is located opposite the partially wound-on or unwound covering band and 5 Fig. 4 is a diagrammatic block diagram having an electronic control and regulation device, a distance sensor for the length direction, a distance sensor for the height direction, a travel motor and a 10 lifting motor. The apparatus 1 for stripping fibre tufts, for example a Triitzschler BLENDOMAT BDT 019 has, in accordance with Figs. 1a and 2a., a. tower 2 on a carriage 10, which travels to and fro in the direction of arrows A, B parallel to a 15 row of bales 3, on one side of the tower 2, a laterally cantilevered stripping element 4 is connected to the tower 2. The stripping element 4 comprises two stripping rollers 5, 6 (high-speed milling rollers) that rotate in opposite directions. The stripping element 4 is mounted on 20 the movable tower 2 by way of a holding device 7. The fibre tufts taken off by the stripping rollers 5, 6 are drawn off under section through a material removal port 8 and a suction line 9, which co-operates with a suction duct 11. The surface of the row of bales 3 is stripped horizontally, 25 The stripping element 4 having the associated milling - 6 - device is mounted on the tower 2 so as to be movable in the height direction in accordance with arrows C, D. In accordance with Fig. 1b, there is arranged on the spinning room floor a stationary ramp 23 which has a 5 horizontal base surface 23b and a sloping surface 23a arranged at an acute angle a (see Fig. 1c) to the base surface 23b. The ramp 23 is arranged to the side of the carriage 10 and the suction duct 11. The length 1 extends over the length of the machine and is greater than the 10 length of the row of bales 3, for example 30 m. Mounted on the side of the carriage 10, which is movable in the direction of arrows A, B, and above the sloping surface 23a is an optical distance sensor 24, for example an infra-red sensor, the beam path of which is directed at the sloping 15 surface 23a. AP1 denotes the starting point, S1 denotes the location and EP1 denotes the end point. Fig. 1c shows calculation of the location S1, wherein: x = distance between the distance sensor 24 and the base surface 23b. 20 α = angle of inclination between the base surface 23b and the sloping surface 23a, y = distance between the distance sensor 24 and the sloping surface 23a, - 7 - a = difference between the distances of the distance sensor 24 from the base surface 23b and from the sloping surface 23a, b = distance of the location S1 from the starting 5 paint AP1. The values of x and α are fixed, prespecified values. The values of y a and b are dependent on the location S1. The straight lines a and b are arranged at a right angle with respect to one another. Calculation of the value of b 10 and, as a result, the location S1 is carried out in three calculation stages; 15 The calculation is performed in the electronic control and regulation device 21, for example a microcomputer (see Fig. 4). The distance sensor 24 (light scanner) consists of a light transmitter 24a and a light receiver 24b. The beam of 20 light 24 emitted by the light transmitter 24a is reflected by the smooth surface of the sloping surface 23a, and the reflected beam of light 24 is received by the light receiver 24b. - 8. - In accordance with Fig. 2a, the carriage 10, together with the tower 2, is movable to and fro along rails 12 in the directions A, B. Reference numeral 13 denotes a travel motor for driving the travel wheels 14, 15 of the 5 carriage 10, together with the tower 2, in the length direction. The holding device 7 supporting the stripping element 4 is suspended from a counterweight 13 by way of a rope passing around guide rollers 16, 17, a lifting motor 19 enabling the height of the remval element 4 to be 10 changed by means of transmission elements 20, 20a (for example, chains) and the guide rollers 16a, 16b (for example, chain wheels). The displacement path of the stripping element 4 in the height direction (arrows C, D) and the lengthwise movement (arrows A, B) of the carriage 15 10 together with the tower 2 resulting from the travel motor 13 are matched to one another by means of a control device 21 end control lines 22.The stripping element 4 is fastened to the holding device 7. The tower 2 is arranged on the carriage 10 so that it is rotatable about a vertical 20 axis. The suction line 9 opens .out into a suction duct 11 located in a stationary position on the floor between the rails 12a, 12b. In accordance with Fig. 2b, there is mounted on the tower 2 a ramp 25, which has a vertical base surface 25b 25 and a sloping surface 25a arranged at an acute angle β to - 9 - the base surface 25b. The ramp 25 is mounted on, the side of the tower 2 (see Fig. 2a). Mounted on the side of the boom 4 is an optical distance sensor 25, for example a laser sensor, the beam path of which is directed at the 5 sloping surface 25a. AP2 denotes the starring point, S2 the location and EP2 the end point. Calculation of the location point S2 is carried out in a manner corresponding to that described and shown with reference to Fig. 1c. The sensor 2 5 can also be mounted (in a manner not 10 shown) on the holding device 7 inside the housing of the tower 2 and the ramp 25 can (in a manner not shown) be mounted inside the housing, for example on a vertical support or the like. In that embodiment, the sloping surface can be arranged on a vertical steel support, for 15 example is can be machined into the latter by means of milling. In accordance with Fig. 1, there is arranged, in a housing 26, a scrolled band covering 33, which is known, for example, from DE 32 06 257 A. The housing containing 20 the scrolled band covering is provided above the suction channel 11 (see Fig. la). Opposite the wound-on or unwound part of the band 27 is a stationary distance sensor 28, which ascertains, by means of scanning, the increasing or decreasing diameter of the wound-on or unwound part of the 25 band 27. The location of the carriage 10 in the length - 10 - direction can be determined by means of the distance sensor 28- In accordance with Fig. 4 there is provided an electronic control and regulation device 21, for example a 5 programmable-memory control, to which there is connected an input device 29. Electronically connected to the control device 21 are a path recognition device for the length direction, for example the distance sensor 24, on the carriage 10 and a path recognition device for the height 10 direction, for example the distance sensor 25, on the boom 4 . The control device 21 is also in electronic communication with the travel motor 13 by way of an amplifier (control electronics unit, frequency converter) and with the lifting motor 19 by way of an Amplifier 31. 15 Reference numeral 32 denotes a display device on which the ascertained locations S1 and/or 32 are visually displayed. -11- TRUTZSHLER GMBH & CO. KG 23 410 D - 41199 MONCHENGLADBACH Claims 5 1- Apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like, by means of a milling 10 apparatus or the like. Wherein a tower, Which can be moved to and fro in relation to the fibre material by means of a carriage, which, has a travel motor or the like, has at least one boom which is provided with the milling apparatus and which expends in a transverse direction to 15 the direction of movement, and the boom together with the stripping apparatus can be moved in the height direction of the tower by means of a lifting motor or the like, a movable distance sensor being provided for determination of the location in the length direction, characterised in 20 that, for location determination (S1, S2 b)in the length and/or height direction, a movable optical distance sensor (24, 25) scans the distances' to a counterpart element (23, 25) that is immovable relative to the distance sensor (24, 24a, 24b; 25) and that is arranged at an angle (α,β) relative to the length and/or height direction, respectively. 2. Apparatus according to claim 1, characterised in that 5 the counterpart element is a remp or the like. 3 Apparatus according to claim 1 or 2, characterised in that the counterpart element has a long extent. 10 4. Apparatus according to any one of claims 1 to 3, characterised in that the counterpart element has a flat scanning surface. 5. Apparatus according to any one of claims 1 to 4 15 characterised in that the scanning surface is capable of reflecting beams of light. 6. Apparatus according to any one of claims 1 to 5, characterised in that the distance sensor is a light 20 scanner. 7. Apparatus according to any one of claims 1 to 6, characterised, in that the distance sensor has a transmitter and a receiver. 25 - 13 - 8. Apparatus according to any one of claims 1 to 7„ characterised in that the distance sensor is a laser scanner. 5 9. Apparatus according to any one of claims l to 8, characterised in that the distance sensor uses visible light. 10. Apparatus according to any one of claims 1 to 9, 10 characterised in that the distance sensor uses infra-red light. 11.Apparatus- according to any one of claims 1 to 10, characterised in that the distance sensor for the length 15 direction is mounted on the movable carriage. 12. Apparatus according to any one of claims 1 to 11, characterised in that the distance sensor for the length direction is mounted on the tower, 20 13. Apparatus according to any one of claims 1 to 12, characterised in that the counterpart element for the length direction is associated with the spinning room f1oor. 25 - 14 - 14. Apparatus according to any one of claims 1 to 13, characterised in that the counterpart element for the length direction is counted on the suction duct for the removed fibre material. 5 15. Apparatus according to any one. of claims 1 to 14; characterised in that a counterpart element is provided on both sides of the carriage, 10 16. Apparatus according to any one of claims 1 to 15, characterised in that the distance sensor for the'height direction is mounted on the movable stripper. 17. Apparatus according to any one of claims 1 to 16, 15 characterised in that the counterpart element for the. height direction is mounted on the tower. 18. Apparatus according to any one of claims 1 to 17, characterised in that the distance sensor for location 20 determination in the length direction is mounted at an angle of 90° to the horizontal base surface of the counterpart element. 19. Apparatus according to any one of claims 1 to 18 25 characterised in that the distance sensor for location determination in the height direction is mounted at an - 15 - angle of 90° to the vertical base surface of the counterpart element. 20. Apparatus according to any one of claims. 1 to 19. 5 characterised in that a movable cleaning element, for example a brush, cleaning lip at the like, is associated with the sloping surface., 21. Apparatus according to any one of claims 1 to 20, 10 characterised in that the distance sensor and the counterpart element are arranged in an enclosed housing. 22. Apparatus according to any one of claims 1 to 21,. characterised in that the distance sensor is in 15 communication with an electrical evaluation device. 23. Apparatus according to any one of claims 1 to 22 ■, characterised in that the evaluation device is in communication with an electronic control and regulation 20 device. 24. Apparatus according to any one of claims 1 to 23, characterised in that the evaluation device, given a prespecified distance between the distance sensor and the 25 base surface of the counterpart element and a prespecified angle of inclination (α), calculates the location from the - 16 - distance between the distance sensor and. the sloping surface of the counterpart element. 25. Apparatus according to any one of claims 1 to 24, 5 characterised in that the function of the dependence of the location on the distance of the distance sensor from the sloping surface is stored in a memory. 26. Apparatus according to any one of claims 1 to 21, 10 characterised in that the distance sensor is a sensor that operates in an analogue, manner. 27. Apparatus according to any one of claims 1 to 26, characterised in that a stationary distance sensor is 15 arranged opposite the wound-on part of the covering band for the suction duct for the removed fibre tufts. 28. Apparatus .according to any one of claims 1 to 27, characterised in that the counterpart element is arranged 20 on the suction duct. 29. Apparatus according to any one of claims 1 to 28, characterised in that the at least one counterpart element is arranged to the side of the suction duct. 25 - 17 - 30. Apparatus according to any one of. claims 1 to 29, characterised in that the sloping surface is produced by machining, for example milling or the like, carried out on a structural element of the machine. 5 31. Apparatus according to any one of claims 1 to 30 characterised in that an optical distance sensor scans the distances to a sloping surface of the counterpart element. In an apparatus for stripping fibre material from textile fibre bales of spinning material, for example cotton, synthetic fibres and the like, by means of a milling apparatus or the like, wherein a tower, which can 10 be moved to and fro in relation to the fibre material by means of a carriage, which has a travel motor or the like, has at least one boom, which is provided with the milling apparatus and which extends in a transverse direction to the direction of movement, and the boom together with the 15 stripping apparatus can be moved in the height direction of the tower by means of a lifting motor or the like, a movable distance sensor is provided for determination of the location in the length direction. In order to make possible, by simple means, an exact 20 determination of location in the length and/or height direction, a movable optical distance sensor scans, for location determination in the length and/or height direction, the distances to a counterpart element that is immovable relative to the distance sensor and that is

Full Text

- 1 -

5 Apparatus for stripping fibre material from textile fibre
bales of spinning material, for example cotton, synthetic
fibres and the like
10 The- invention relates to an apparatus for stripping
fibre material from textile fibre bales of spinning
material, for example cotton, synthetic fibres and the
like, by means of a milling apparatus or the like, wherein
a tower, which can be moved to and fro in relation to the
15 fibre material by means of a carriage, which has a travel
motor or the like, has at least one boom, which is provided
with the milling apparatus and which extends in a
transverse direction to the direction of movement, and the
boom together with the stripping apparatus can be moved in
20 the height direction of the tower by means of a lifting
motor or the like, a movable distance sensor being provided
for determination of the location in the length direction.
In a known apparatus (DE-A- 37 22 317), the stripping
apparatus is provided with sensors which register the
25 distance of the stripping apparatus from a wall or the like

- .2 -
where the row of bales terminates. Control lines lead, to a
switch-over device or to a control unit by means of which
the stripping apparatus can be reversed at the end of the
movement of the stripping apparatus. The sensors are
5 proximity sensors which iniciate the slowing-down or
reversal procedure in good time before the wall is reached.
Using chose sensors it is not possible to ascertain the
location of the carriage exactly. In addition, it is
disadvantageous that the sensors nave to act over a
10 relatively large distance in the horizontal direction in
order that the travel speed of the heavy machine resulting
from the substantial weight of the carriage and the tower
together with the boom, for example 2.8 tonnes, can be
reliably slowed down in good time without damage. A sensor
15 that acts in the height direction is not provided because
neither a slowing-down procedure nor a reversal procedure
is carried out in the height direction.
The problem underlying the invention is accordingly to
provide an apparatus of the kind described at the beginning
20 that avoids the mentioned disadvantages and that especially
makes possible, by simple means, an exact determination of
location in the length and/or height direction.
The problem is solved by the characterising features of
claim l.
25 . As a result of the fact that an optical distance sensor
scans a sloping surface, for example a ramp or the like.

- 3 -
large distances are calculate very exactly by means of
relatively small distance measurements. It is especially
advantageous that for measurement of just small distances
economically priced distance sensors can be used. In
5 addition, distance measurement performed over a short
distance is more exact (focussed) because scattered light
losses are minimised. Mounting of the optical distance
sensors is simple. Overall, position detection [location
determination) that is maintenance-free and free from wear
10 is made possible. Irrespective of the position and the work
region in which the machine is located, the control
(evaluation device) calculates the position (location) of
the lower carriage or removal device immediately after the
machine has been switched on. Finally, no slippage is
15 present.
Claims 2 to 31 contain advantageous developments of the
invention.
The invention will be described hereinafter in greater
detail with reference to embodiments shown in the drawings-,
20 in which:
Fig- 1a. shows in. a diagrammatic side view, the
apparatus according to the invention, at
a bale opener having a location.-
modifiable distance sensor and a
25 stationary counterpart element, for

- 4 -
location determination in the length
direction.;
Fig-. 1b shows the carriage together with the
distance sensor and a counterpart
5 element in ramp form;
Fig. 1c shows the distance between the distance
sensor and the base surface of the
counterpart element, the angle of
inclination of the ramp between the base
10 surface and the sloping surface, the
distance between the distance sensor and
the sloping surface, the difference
between the distances of the distance
sensor from the ba.se surface and from
15 the sloping surface, and the distance of
the location from a starting point;
Fig. 1d shows the distance sensor, having a
transmitter and received;
Fig. 2a shows, in a diagrammatic front view, the
20 apparatus according to the invention, at
the bale opener according to Fig. 1a,
for location determination in the height
direction;
Fig. 2b shows the boom together with the
25 distance sensor and a counterpart
element in ramp form;

- 5-
Fig. 3, shows a further embodiment of the
invention, wherein a distance sensor is
located opposite the partially wound-on
or unwound covering band and
5 Fig. 4 is a diagrammatic block diagram having
an electronic control and regulation
device, a distance sensor for the length
direction, a distance sensor for the
height direction, a travel motor and a
10 lifting motor.
The apparatus 1 for stripping fibre tufts, for example a
Triitzschler BLENDOMAT BDT 019 has, in accordance with
Figs. 1a and 2a., a. tower 2 on a carriage 10, which travels
to and fro in the direction of arrows A, B parallel to a
15 row of bales 3, on one side of the tower 2, a laterally
cantilevered stripping element 4 is connected to the
tower 2. The stripping element 4 comprises two stripping
rollers 5, 6 (high-speed milling rollers) that rotate in
opposite directions. The stripping element 4 is mounted on
20 the movable tower 2 by way of a holding device 7. The fibre
tufts taken off by the stripping rollers 5, 6 are drawn off
under section through a material removal port 8 and a
suction line 9, which co-operates with a suction duct 11.
The surface of the row of bales 3 is stripped horizontally,
25 The stripping element 4 having the associated milling

- 6 -
device is mounted on the tower 2 so as to be movable in the
height direction in accordance with arrows C, D.
In accordance with Fig. 1b, there is arranged on the
spinning room floor a stationary ramp 23 which has a
5 horizontal base surface 23b and a sloping surface 23a
arranged at an acute angle a (see Fig. 1c) to the base
surface 23b. The ramp 23 is arranged to the side of the
carriage 10 and the suction duct 11. The length 1 extends
over the length of the machine and is greater than the
10 length of the row of bales 3, for example 30 m. Mounted on
the side of the carriage 10, which is movable in the
direction of arrows A, B, and above the sloping surface 23a
is an optical distance sensor 24, for example an infra-red
sensor, the beam path of which is directed at the sloping
15 surface 23a. AP1 denotes the starting point, S1 denotes the
location and EP1 denotes the end point. Fig. 1c shows
calculation of the location S1, wherein:
x = distance between the distance sensor 24 and the
base surface 23b.
20 α = angle of inclination between the base
surface 23b and the sloping surface 23a,
y = distance between the distance sensor 24 and the
sloping surface 23a,

- 7 -
a = difference between the distances of the
distance sensor 24 from the base surface 23b
and from the sloping surface 23a,
b = distance of the location S1 from the starting
5 paint AP1.
The values of x and α are fixed, prespecified values.
The values of y a and b are dependent on the location S1.
The straight lines a and b are arranged at a right angle
with respect to one another. Calculation of the value of b
10 and, as a result, the location S1 is carried out in three
calculation stages;

15 The calculation is performed in the electronic control
and regulation device 21, for example a microcomputer (see
Fig. 4).
The distance sensor 24 (light scanner) consists of a
light transmitter 24a and a light receiver 24b. The beam of
20 light 24 emitted by the light transmitter 24a is reflected
by the smooth surface of the sloping surface 23a, and the
reflected beam of light 24 is received by the light
receiver 24b.

- 8. -
In accordance with Fig. 2a, the carriage 10, together
with the tower 2, is movable to and fro along rails 12 in
the directions A, B. Reference numeral 13 denotes a travel
motor for driving the travel wheels 14, 15 of the
5 carriage 10, together with the tower 2, in the length
direction. The holding device 7 supporting the stripping
element 4 is suspended from a counterweight 13 by way of a
rope passing around guide rollers 16, 17, a lifting
motor 19 enabling the height of the remval element 4 to be
10 changed by means of transmission elements 20, 20a (for
example, chains) and the guide rollers 16a, 16b (for
example, chain wheels). The displacement path of the
stripping element 4 in the height direction (arrows C, D)
and the lengthwise movement (arrows A, B) of the carriage
15 10 together with the tower 2 resulting from the travel
motor 13 are matched to one another by means of a control
device 21 end control lines 22.The stripping element 4 is
fastened to the holding device 7. The tower 2 is arranged
on the carriage 10 so that it is rotatable about a vertical
20 axis. The suction line 9 opens .out into a suction duct 11
located in a stationary position on the floor between the
rails 12a, 12b.
In accordance with Fig. 2b, there is mounted on the
tower 2 a ramp 25, which has a vertical base surface 25b
25 and a sloping surface 25a arranged at an acute angle β to

- 9 -
the base surface 25b. The ramp 25 is mounted on, the side of
the tower 2 (see Fig. 2a). Mounted on the side of the
boom 4 is an optical distance sensor 25, for example a
laser sensor, the beam path of which is directed at the
5 sloping surface 25a. AP2 denotes the starring point, S2 the
location and EP2 the end point. Calculation of the location
point S2 is carried out in a manner corresponding to that
described and shown with reference to Fig. 1c.
The sensor 2 5 can also be mounted (in a manner not
10 shown) on the holding device 7 inside the housing of the
tower 2 and the ramp 25 can (in a manner not shown) be
mounted inside the housing, for example on a vertical
support or the like. In that embodiment, the sloping
surface can be arranged on a vertical steel support, for
15 example is can be machined into the latter by means of
milling.
In accordance with Fig. 1, there is arranged, in a
housing 26, a scrolled band covering 33, which is known,
for example, from DE 32 06 257 A. The housing containing
20 the scrolled band covering is provided above the suction
channel 11 (see Fig. la). Opposite the wound-on or unwound
part of the band 27 is a stationary distance sensor 28,
which ascertains, by means of scanning, the increasing or
decreasing diameter of the wound-on or unwound part of the
25 band 27. The location of the carriage 10 in the length

- 10 -
direction can be determined by means of the distance
sensor 28-
In accordance with Fig. 4 there is provided an
electronic control and regulation device 21, for example a
5 programmable-memory control, to which there is connected an
input device 29. Electronically connected to the control
device 21 are a path recognition device for the length
direction, for example the distance sensor 24, on the
carriage 10 and a path recognition device for the height
10 direction, for example the distance sensor 25, on the
boom 4 . The control device 21 is also in electronic
communication with the travel motor 13 by way of an
amplifier (control electronics unit, frequency converter)
and with the lifting motor 19 by way of an Amplifier 31.
15 Reference numeral 32 denotes a display device on which the
ascertained locations S1 and/or 32 are visually displayed.

-11-
TRUTZSHLER GMBH & CO. KG 23 410
D - 41199 MONCHENGLADBACH
Claims
5
1- Apparatus for stripping fibre material from textile
fibre bales of spinning material, for example cotton,
synthetic fibres and the like, by means of a milling
10 apparatus or the like. Wherein a tower, Which can be moved
to and fro in relation to the fibre material by means of a
carriage, which, has a travel motor or the like, has at
least one boom which is provided with the milling
apparatus and which expends in a transverse direction to
15 the direction of movement, and the boom together with the
stripping apparatus can be moved in the height direction of
the tower by means of a lifting motor or the like, a
movable distance sensor being provided for determination of
the location in the length direction, characterised in
20 that, for location determination (S1, S2 b)in the length
and/or height direction, a movable optical distance
sensor (24, 25) scans the distances' to a counterpart
element (23, 25) that is immovable relative to the distance
sensor (24, 24a, 24b; 25) and that is arranged at an

angle (α,β) relative to the length and/or height
direction, respectively.
2. Apparatus according to claim 1, characterised in that
5 the counterpart element is a remp or the like.
3 Apparatus according to claim 1 or 2, characterised in
that the counterpart element has a long extent.
10 4. Apparatus according to any one of claims 1 to 3,
characterised in that the counterpart element has a flat
scanning surface.
5. Apparatus according to any one of claims 1 to 4
15 characterised in that the scanning surface is capable of
reflecting beams of light.
6. Apparatus according to any one of claims 1 to 5,
characterised in that the distance sensor is a light
20 scanner.
7. Apparatus according to any one of claims 1 to 6,
characterised, in that the distance sensor has a transmitter
and a receiver.
25

- 13 -
8. Apparatus according to any one of claims 1 to 7„
characterised in that the distance sensor is a laser
scanner.
5 9. Apparatus according to any one of claims l to 8,
characterised in that the distance sensor uses visible
light.
10. Apparatus according to any one of claims 1 to 9,
10 characterised in that the distance sensor uses infra-red
light.
11.Apparatus- according to any one of claims 1 to 10,
characterised in that the distance sensor for the length
15 direction is mounted on the movable carriage.
12. Apparatus according to any one of claims 1 to 11,
characterised in that the distance sensor for the length
direction is mounted on the tower,
20
13. Apparatus according to any one of claims 1 to 12,
characterised in that the counterpart element for the
length direction is associated with the spinning room
f1oor.
25

- 14 -
14. Apparatus according to any one of claims 1 to 13,
characterised in that the counterpart element for the
length direction is counted on the suction duct for the
removed fibre material.
5
15. Apparatus according to any one. of claims 1 to 14;
characterised in that a counterpart element is provided on
both sides of the carriage,
10 16. Apparatus according to any one of claims 1 to 15,
characterised in that the distance sensor for the'height
direction is mounted on the movable stripper.
17. Apparatus according to any one of claims 1 to 16,
15 characterised in that the counterpart element for the.
height direction is mounted on the tower.
18. Apparatus according to any one of claims 1 to 17,
characterised in that the distance sensor for location
20 determination in the length direction is mounted at an
angle of 90° to the horizontal base surface of the
counterpart element.
19. Apparatus according to any one of claims 1 to 18
25 characterised in that the distance sensor for location
determination in the height direction is mounted at an

- 15 -
angle of 90° to the vertical base surface of the
counterpart element.
20. Apparatus according to any one of claims. 1 to 19.
5 characterised in that a movable cleaning element, for
example a brush, cleaning lip at the like, is associated
with the sloping surface.,
21. Apparatus according to any one of claims 1 to 20,
10 characterised in that the distance sensor and the
counterpart element are arranged in an enclosed housing.
22. Apparatus according to any one of claims 1 to 21,.
characterised in that the distance sensor is in
15 communication with an electrical evaluation device.
23. Apparatus according to any one of claims 1 to 22 ■,
characterised in that the evaluation device is in
communication with an electronic control and regulation
20 device.
24. Apparatus according to any one of claims 1 to 23,
characterised in that the evaluation device, given a
prespecified distance between the distance sensor and the
25 base surface of the counterpart element and a prespecified
angle of inclination (α), calculates the location from the

- 16 -
distance between the distance sensor and. the sloping
surface of the counterpart element.
25. Apparatus according to any one of claims 1 to 24,
5 characterised in that the function of the dependence of the
location on the distance of the distance sensor from the
sloping surface is stored in a memory.
26. Apparatus according to any one of claims 1 to 21,
10 characterised in that the distance sensor is a sensor that
operates in an analogue, manner.
27. Apparatus according to any one of claims 1 to 26,
characterised in that a stationary distance sensor is
15 arranged opposite the wound-on part of the covering band
for the suction duct for the removed fibre tufts.
28. Apparatus .according to any one of claims 1 to 27,
characterised in that the counterpart element is arranged
20 on the suction duct.
29. Apparatus according to any one of claims 1 to 28,
characterised in that the at least one counterpart element
is arranged to the side of the suction duct.
25

- 17 -
30. Apparatus according to any one of. claims 1 to 29,
characterised in that the sloping surface is produced by
machining, for example milling or the like, carried out on
a structural element of the machine.
5
31. Apparatus according to any one of claims 1 to 30
characterised in that an optical distance sensor scans the
distances to a sloping surface of the counterpart element.

In an apparatus for stripping fibre material from
textile fibre bales of spinning material, for example
cotton, synthetic fibres and the like, by means of a
milling apparatus or the like, wherein a tower, which can
10 be moved to and fro in relation to the fibre material by
means of a carriage, which has a travel motor or the like,
has at least one boom, which is provided with the milling
apparatus and which extends in a transverse direction to
the direction of movement, and the boom together with the
15 stripping apparatus can be moved in the height direction of
the tower by means of a lifting motor or the like, a
movable distance sensor is provided for determination of
the location in the length direction.
In order to make possible, by simple means, an exact
20 determination of location in the length and/or height
direction, a movable optical distance sensor scans, for
location determination in the length and/or height
direction, the distances to a counterpart element that is
immovable relative to the distance sensor and that is

Documents:

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Patent Number

278109

Indian Patent Application Number

67/KOL/2006

PG Journal Number

52/2016

Publication Date

16-Dec-2016

Grant Date

14-Dec-2016

Date of Filing

23-Jan-2006

Name of Patentee

TRUTZSCHLER GMBH & CO. KG.,

Applicant Address

DUVENSTR. 82-92, D-41199 MONCHENGLADBACH GERMANY

Inventors:

#	Inventor's Name	Inventor's Address
1	FRANZ-JOSEF MINTER	D-41069 MONCHENGLADBACH GERMANY.

PCT International Classification Number

D01G7/00; D01G7/06

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	102005013076.3	2005-03-18	Germany