Title of Invention

FORGING MACHINE HAVING ROLLERS BETWEEN A SUPPORT AND A SLIDE BODY OF A DIE ASSEMBLY

Abstract A forging machine includes a support (2) having two sidewalls (22), and two track plates (23) attached respectively to the sidewalls (22). A slide body (50) of a die assembly (5) is mounted slidably inside the support (2) between the sidewalls (22). Two first rolling devices (3) are respectively mounted on the track plates (23) near the front (229) of the support (2) to contact the slide body (50). Two second rolling devices (4) are mounted respectively on the sidewalls (22) above the track plates (23) and near the rear (227) of the support (2) to contact the slide body (50). Due to the first and second rolling devices (3, 4) contacting the slide body (50) near the front and rear of the support (2), the slide body (50) can slide stably in the support (2) without positional deviation.
Full Text 1
FORGOING MACHINE HAVING ROLLERS BETWEEN A SUPPORT AND
A SLIDE BODY OF A DIE ASSEMBLY
The invention relates to a. forging machine, more
particularly to a forging machine having rollers between
5 a support and a slide body of a male die assembly.

Fasteners, such as screws and nuts, are generally
manufactured by feeding a wire material into .a forging
machine. In the forging machine, the wire material is
straightened and cut into workpieces that are conveyed
10 to a female die unit, and a male die unit is forced to
move to the female die unit to perform a series of forging
operations so as to forge the workpieces.
Referring to Figu.re 1 , a conventional forging machine
1 includes a support 11 having a receiving space 111,
15 two rolling devices 12 disposed respectively at left
and right sides of the receiving space 111, and a. male
die assembly 13 installed slidiably in the receiving space
111. Bach rolling device 12 includes a plurality of
rollers 121 in contact with the male die assembly 23
20 so that the male die assembly 13 can slide smoothly via.
the rollers 12 1, andgeneration of fractional heat during
the sliding of the male die assembly 13 can be avoided.

As the forging machine 1 is designed to produce a
large number of products within 1 man, the male die
25 assembly 13 has to operate at a high speed. However,
since the rolling devices 12 are provided only at the
front of the two sides of the support 11 and at the front


2
of the male die assembly 13 , during the sliding motion
of the male die assembly 13, the rolling movements occur
only at the front thereof, and the rear side of the male
die assembly 13 is suspended unsupportedly in the
5 receiving apace 111. Furthermore, because the length
of the male die assembly 13 from a location where it
contacts the rollers 121 to its rear end is twice the
length from that location to its front end which is
assembled with a plurality of punching heads (not shown) ,
10 in case the male die assembly 13 is tilted slightly,
its rear end will vibrate, resulting in positional
deviation and reduced stability of the punching heads.
As a result, when the male die assembly 13 moves forward
to effect forging, particularly, to press the front end
15 punching heads against a female die assembly 14, the
male die assembly 13 will strike obliquely the female
die assembly 14, thereby adversely affecting the
accuracy of the forging operation and the quality of
products. Therefore, further improvement relating to
20 the sliding of a male die assembly is desirable.
Therefore, the main object of the present invention,
is to provide a forging machine with improvements that
can overcome the aforementioned drawbacks of the prior-
art .
25 According to this invention, a forging machine
comprises a support including a bottom wall, two
sidewalls extending upward from left and right sides


3
of the bottom wall, and two track plates attached to
the sidewalla, respectively. Each of the sidewalls has
a lower portion to which a corresponding one of the track
plates is attached, and an upper portion extending above
5 the lower portion, The bottom wall , the sidewalls, and
the track, plates cooperatively confine a receiving
space.
The forging machine further comprises two first
rolling devices respectively mounted on the track plates
10 proximate to a front end of the support, and having first
rollers exposed from the track plates, respectively;
two second rolling devices respectively mounted on the
upper portions proximate to a rear end of the support,
and having second rollers exposed from the upper portions,
15 respectively; and a die assembly having a slide body
elidably mounted within the receiving space. The slide
body includes left and right lower side faces
respectively contacting the first rollers, and left and
right upper flanges that extend respectively above the
20 left and right lower side faces and that are seated'
slidably and respectively on top of the track plates.
to contact the second rollers.
Other features and advantages of the present
invention will become apparent in the following detailed
25 description of the preferred embodiments with reference
to the accompanying drawings, of which:
Figure l is a plan view of the prior art;

4
Figure 2 is an exploded view illustrating a first
preferred embodiment of the present invention;
Figure 3 is a plan view showing the first preferred
embodiment;
5 Figure 4 is an elevation view showing the first
preferred embodiment;
Figure 5 is an exploded view showing a first rolling
device of the first preferred embodiment;
Figure 6 is a sectional plan view showing the first
10 rolling device of the first preferred eiftbodiment ;
Figure 7 is a sectional elevation view showing the
first rolling device of the first preferred embodiment;
Figure 8 is an exploded view showing a second rolling
device of the first preferred embodiment;
15 Figure 9 is a sectional plan view showing the second
rolling device of the first preferred embodiment;
Figure 10 is a sectional elevation view showing the
second rolling device of the first preferred embodiment ;
F i gure 11 is an exploded views hov ing a second rolling
20 device according to the second preferred embodiment of
the present invention;
Figure 12 is a sectional plan view showing the second
rolling device of the second preferred embodiment;
Figure 13 is a sectional elevation view showing the
25 second rolling device df the second preferred
embodiment;
Figure 14 is an exploded view showing a second roll ing


5
device according to the third preferred embodiment;

Figure 15 is a sectional planview showing tne second
rolling device of the third preferred embodiment; and
Figure 16 is a sectional elevation view showing the
5 second rolling device of the third preferred embodiment .
Before the present invention is described in greater
dtail, it should be noted that like elements are denoted
by the same reference numerals throughout the
disclosure.
10 Referring to Figures 2, 3 and 4, a forging machine
according to the present invention includes a support
2, two first rolling devices 3, two second rolling
devices 4 and a male die assembly 5.
The support 2 has a bottom wall 21, two sidewalls
15 22 extending respectively from left and right sides of
the bottom wall 21, and two longitudinal track plates
23 mounted respectively on the sidewalls 22 and elongated
in a front-to-rear direction. The bottom wall 21, the
sidewalls 22 and the track plates 23 cooperatively
20 confine a receiving space 24. Each sidewall 22 has a
lower portion 220 to which a corresponding one of the
track plate 23 is attached, and an upper portion 221.
The upper portion 231 is stepped and thus has a sidewall
shoulder face 222 extending horizontally and
25 longitudinally above a top end of the corresponding track
plate 23 . A sidewall inner face 224 extends vertically
and downwardly from the. sidewall shoulder face 223 to


6
the top end of the corresponding track plate 23 and faces
the receiving space 24. A cavity 223 is formed in the
upper portion 221 proximate to a rear end 227 of the
support 2, and opens at the sidewall shoulder face 222
5 and at the sidewall inner face 324. Each, track plate
23 has upper and lower through holes 231 proximate to
a front end 229 of the support 2.
Referring to Figures 5, 6 and 7 in combination with
Figure 2 r each through hole 231 in each track plate 23
10 has an inner small hole portion 233, an outer large hole
portion 234 , and a shoulder 235 formed inside the through
bole 23 1 between the large and small hole portions 2 34
and 23 3. The first rolling devices 3 are mounted in
the respective track places 23 on left and right sides
15 of the male die assembly 5. Each first rolling device
3 includes two first roller units 31 mounted respectively
within the two through holes 231 in the corresponding
track plate 23. Each first roller unit 31 has a first
roller holder 311, a first roller 312 disposed inside
20 the first roller holder 311 and exposed front the first
roller holder 311 to project into the receiving space
24 , a first roller shaft 313 holding pivot ally the first
roller 312 within the first roller holder 311, a first
packing plate 314 disposed between the corresponding
25 track plate 23 and. sidewall 22, adjustment screws 315
extending threadedly into the first packing plate 314
through the track plate 2 3, springs' 316 disposed between


7
the first roller holder 311 and theshoulder 235 inside
the through hole 231, and a fixing screw 3.17 extending
into the track plate 23 to abut against the first packing
plate 314.
5 The first roller holder 311 has a holder inclined
face 318 that is proximate to the first packing plate
314 and that is inclined outwardly. And the first
packing plate 314 has a complementary packing inclined
face 319 in contact with the holder inclined face 318-
10 Each spring 316 provides a biasing force that biases
the first roller holder 311 against the first packing
plats 314 . The first packing plate 314 can move forward
or rearward when the adjustment screws 315 are turned
and cooperates with the springs 316 to move the first
15 roller holder 3 11 outward or inward. When the fixing
screw 317 is tightened, it abuts against and immobilizes
the first packing plate 314.
Referring to Figures 8, 9 and 10 in combination with
Figure 2, each second rolling device 4 includes a second
20 roller unit 4 1 having a second roller holder 4 11 mounted
inside the cavity 223 of the respective sidewall 22 ,
The upper portion 221 of the sidewall 2 2 further has
a cavity bounding wall part 228 extending at one side
of the second roller holder 4 11 opposite to the slide
25 body 50 . The second roller unit 41 further has a second
packing pi ate 415 inserted inbetweenthe cavity bounding
wall part 223 and the second roller holder 411, a second


8
roller 412 disposed rotatably inside the second roller
holder 411 and exposed from the second roller holder
411 to project into the receiving space 24, a second
roller shaft 4 13 attached to the second roller holder
5 411 to hold pivotally the second roller 412 within the
second roller holder 411, and two fastening bolts 414
extending through the cavity bounding wall part 228 and
the second packing plate 415 and inserted threadedly
into the second roller holder 411 so as to position the
10 second roller holder 411 inside the cavity 223 . A cover
plate 42 is disposed over the sidewall shoulder face
222 and the second roller holder 411 and projects into
the receiving space 24 so as to extend over the male
die assembly 5. The cover plate 42 is fixed to the
15 sidewall shoulder Eace 222 using a plurality of locking
screws 43.
Referring again to Figures 2, 7 and 10, the male die
assembly 5 has a slide body 50 slidably mounted within
the receiving space 24 to move forward or rearward . The
20 slide body 50 includes left and right lower side faces
51 respectively confronting the track plates 23, left
and right upper flanges 52 that project outwardly above
the respective left and right lower- side faces 51 and
are seated slidably on the top ends of the track plates,
25 respectively, two pairs of first steel plates 53 each
pair of which overlie portions of one of the left and
right lower side faces 51, and two second steel plate3


9
54 covering outer surfaces of the respective left and
right upper f langes 52 . Each of the left and right upper
flanges 52 is slidable between the corresponding track
plate 23 and the corresponding cover plate 42 .
5 when the slide body 50 is driven to move forward and
rearward, the first steel plates 53 are in sliding
contact with the respective first rollers 312, and the
second steel plates 54 are in sliding contact with the
respective second rollers 412, Due to the gapless
10 sliding contact with the first and second rollers 312,
412 near both of the front and rear ends of the support
2, the slide body 50 can be slid smoothly and stably
within the receiving space 24.
Referring to Figures l,r 12 and 13, according to the
15 second preferred embodiment of the present invention,
the second rolling device 4 may include a second roller
unit 44. The second roller unit 44 differs from the
second roller unit 41 of the first preferred embodiment
in having a second roller holder 441, a second packing
20 plate 481, and a retaining plate 482.
The second roller holder 441 has a holder lateral
wall 442 facing the cavity bounding wall part 228 of
the sidewall 22 . The holder lateral wall 442 has a slide
groove 443 that extends in a direction from a top end
25 to a bottom end of the second roller holder 441, and an
inclined surface 444 facing the slide groove 433. The
second packing place 401 is inserted into the slide


10
groove 44 3 and has one side 4 88 in contact with the cavity
bound ing wall part 228, and another side 487 opposite
to the side 488 and contacting the inclined surface 444
of the holder lateral wall 442. The side 487 of the
5 second packing plate 481 is inclined with respect to
the side 43 8 and the cavi ty bounding wall part 22 8 . The
second packing plate 481 is slidable. over the inclined
surface 444 and along the slide groove 443 to move the
second toller holder 441 in a direction substantially
10 perpendicular to the cavity bounding wall part 228 so
that the second roller holder 441 can be moved toward
or away from the slide body 5 0 (see Figure 2).
The retaining plate 4 82 is fisted to a top end of
the second roller holder 441 above the second packing
15 plate 481 by means of screws 489 so as to retain the
second packing plate 481 in the slide groove 443. An
adjustment screw 483 extends through the retaining plate
492 and is inserted threadedly into the second packing
plate 4.81 . Two fastening bolts 4 84 extend through the
20 cavity bounding wall part 228. and are inserted threadedly
into the second packing plate 481 and the holder lateral
wall 442. A biasing member is associated with each
fastening bolt 484 to bias the second roller holder 441
to move in a direction toward the cavity bounding –wall
25 part 228, or, away from the slide body 50 . Each fast ening
bolt 484 has a head 4841 extending outwardly of the cavity
bounding wall part 228. The biasing member in thi.s


11
embodiment includes three spring discs 485 disposed
around each fastening blot 484 beween the head 4841
and the cavity bounding wall part. 228.
When the adjustment screw 483 is turned relative to
5 the retaining plate 482, the second packing plate 481
can be moved upward or downward. When the second packing
plate 481 is moved upward, the second roller holder 441
is pushed toward the slide body 50 so that the position
of the second rol 1 er 4 12 is adjusted. When the second
10 packing plate 481 is moved downward, the second roller
holder 411 is moved back by the biasing action of the
spring discs 485 in a direction away from the slide body
50 .
Referring to Figures 14 , 15 and 16, according to the
15 third preferred embodiment of the present invention,
upper and lower plate portions 491 and 492 may be used
in place of the second packing plate 481 of the second
preferred embodiment, upper and lower groove portions
494, 49 5 may be used in place of the. slide groove 443
20 of the second preferred embodiment, and upper and lower
surface portions 496, 497 may be used in place of the
inclined surface 4 44 in the second preferred embodiment.
Each o£ the upper and lower plate portions 491, 492
is inserted into one oi the upper and lower groove
25 portions 4 94, 495, and has two opposite sides
respectively contacting the cavity bounding wall part
228 and one of the upper and lower surface portions 436,


12
497. One inclined side 498 of the upper plate portion
491 contacts the upper surface portion 496, whereas one
inclined side 4 99 of the lower plate portion 492 contacts
the lower surface portion 497. The upper and lower
5 surface portions 4 96, 497 are inclined in two different
directions so that the tipper groove portion 494 tapers
downward and t he 1ower groove port i on 495 tapers upward.
Likewise, the upper plate portion 491 tapers downward,
and the lower plate portion 492 tapers upward. An
10 adjustment screw 493 passes through the upper plate
portion 491 and is inserted into the lower plate portion
492. When the adjustment screw 4 93 is rotated , the lower
plate portion 492 can be moved, upward or downward so
that the second roller holder 441 can be moved toward
15 or away from the slide body 50,
Due to the use o£ the f irst and second rolling devices
3 and 4 which are provided respectively near the front
and rear ends 229, 22 7 of the support 2, the slide body
50 of the male die assembly 5 can be slid stably without
20 positional deviation, thereby permitting the male die
assembly 5 to operate at a high speed while still
producing good quality products.

13
CLAIMS:
1 A forging machine including:
a support (2) including a bottom wall (21), two
sidewalls (22) extending upward from left and right
5 sides of said bottom wall (21) , and two track plates
(23) attached to said sidewalls (22), respectively,
each of said sidewalls {22) having a lower portion
(220 ) to which a corresponding one o£ said trackplates
(23) is attached, and an upper portion (221) extending
10 above said lower portion (220) , said bot tom wall (21) ,
said aidewalls (22), and said track plates (23)
cooperatively confining a receiving space (24);
two first rolling devices (3) respectively mounted
on said track plates (23) proximate to a front end
15 1229) of said support (2) , and having first rollers
(312) exposed from said track plates (23),
respectively; and
a die assembly (5) having a slide body (50) s.lidably
mounted within said receiving space (24) and
20 respectively contacting said first rollers (312) ,
the forging machine being characterised by:
two second rolling devices (4) respectively mounted
on said upper portions (221) proximate to a rear end
(227) of said support (2} , and having second rollers
25 (412) exposed from said upper portions (221) ,
respectively, the slide body (50) having left and
right upper flanges (52) that extend respectively


14
above said left and right lower side faces and that
are seated slidably and respectively on top of said
track plates (23) to contact said second rollers
(412)
5 2. The forging machine of Claim 1, wherein each of said
left and right lower side faces (51) has a first steel
plate (53) placed in contact with, a respective one
of said first rollers (312) -
3. The forging machine of Claim 1, wherein each of said
10 left and right upper flanges (52) has a second steel
plate (54) placed in contact with a respective one
of said second rollers (412) -
4. The forging machine of Claim 1, wherein, said upper
portion (221) of each of said side walls {22) has a
15 cavity (223), each of said second roller devices (4)
further having a second roller holder (411, 441)
disposed inside said cavity (223) and holding a
respective one of said second rollers (412).
5. The forging machine of Claim 4, wherein said upper
20 portion (221) of each of said sidewalls (2 2) is stepped,
AND has a sidewall shoulder face (222) extending
substantially horizontally above said top end of a
respective one of said track plates (23), and a
sidewall inner face (224) extending substantially
25 vertically downward from said sidewall shoulder face
(222) and facing said slide body (50) ,
6. The forging machine of Claim 4 , wherein said upper


15
portion (221) of each of said sidewalls (2.2) further
has a cavity bounding wall part (228) extending at
one side of said, second roller holder (411, 44 1)
opposite to said slide body (50) , eatch. of a said second
5 rolling devices (4) further including a second
packingplate (415, 431, 451, 492) inserted in between
said cavity bounding wall part (228) and said second
roller holder (411, 441).
7. The forging machine of Claim 6, wherein said second
10 roller holder (441) further has a holder lateral wall
(442) facing said cavity bounding wall part (228)
and having an inclined surface (444, 496, 497) , said
second packing plate (481, 491, 492) being disposed
between said cavity bounding wall part (228) and said
15 inclined surf ace (444, 496, 497), said second packing
plate (481, 491, 492) having two opposite sides one
of which contacts said cavity bounding wall part (228) ,
and the other one of which contacts said inclined
surface (444, 496, 497), said second packing plate
20 (-481, 491, 4-92.) being slidable over said inclined
surface (444, 496, 497) to move said second roller
holder (441) in a direction substantially
perpendicular to said cavity bounding wall part
(223) .
25 8. The forging machine of Claim 7, wherein said holder
lateral wall (442) further has a slide groove (443,
494, 495) opposite to said cavity bounding wall part


16
(228) , said inclined surface ((444, 496, 497) being
formed in said slide groove (443, 494, 495), said
second packing plate (481, 491, 492) being inserted
into said slide groove (443, 494, 495).
5 9. The forging machine of Claim 8 , wherein each, of said
second rolling devices (4) further includes an
adjustment screw (483, 493) inserted into said second
packing plate (481, 491, 492) so as to move linearly
said second packing plate (481, 491, 492) within said
10 slide groove (443, 494, 495),
10. The forging machine of Claim 7, wherein each of said
second rolling devices (4) further includes a biasing
member (485) that biases said second roller holder
(441) to move in a direction toward said cavity
15 bounding wall part (228) .
11. The forging machine of Claim 10 , wherein each of said
second rolling device {4) further includes a
fastening bolt (484) extending through said cavity
bounding wall part (228) and insertedthreadedly into
20 said second roller holder (441), said fastening bolt
(484)having a head (4841) extending outwardly of
said cavity bounding wall part (228)., said biasing
member having a plurality of spring discs (485)
disposed around said fastening bol t (484) and between
25 said head (4 841) and said cavity bounding wall part
(228) .
12. The forging machine of Claim 8 , wherein said inclined


17
surface is divided into an upper surface portion (4.96)
and a lower surface portion (4 97) r said upper and
lower surface portions (496, 497) being inclined in
two different directions, said groove being divided:
5 into an upper groove portion (494) that has said upper
surface portion (494) and that tapers downward, and
a lower groove portion (495) that has said lower
surface portion (497) and that tapers upward, said
second packing plate being- divided into upper and
10 lower plate portions (491, 492) which are inserted
respectively into said upper and lower groove
portions (494, 495) , said upper plate portion (491)
tapering downward, said lower plate portion (4 92)
tapering upward.
15 13. The forging machine of Claim 12 , wherein each of said
second rolling devices (4) further includes an
adjustment screw (493) passing through said upper
plate portion (491) and inserted threadedly into said
lower plate portion (492) .
20 14. The forging machine as substantially described
hereinbefore with reference to the accompanying
drawings,
Dated this 2 7th day of MARCH 2006.


A forging machine includes a support (2) having
two sidewalls (22), and two track plates (23) attached
respectively to the sidewalls (22). A slide body
(50) of a die assembly (5) is mounted slidably inside
the support (2) between the sidewalls (22). Two
first rolling devices (3) are respectively mounted
on the track plates (23) near the front (229) of the
support (2) to contact the slide body (50). Two
second rolling devices (4) are mounted respectively
on the sidewalls (22) above the track plates (23)
and near the rear (227) of the support (2) to contact
the slide body (50). Due to the first and second
rolling devices (3, 4) contacting the slide body (50)
near the front and rear of the support (2), the slide
body (50) can slide stably in the support (2) without
positional deviation.

Documents:

00274-kol-2006-abstract.pdf

00274-kol-2006-claims.pdf

00274-kol-2006-description complete.pdf

00274-kol-2006-drawings.pdf

00274-kol-2006-form 1.pdf

00274-kol-2006-form 2.pdf

00274-kol-2006-form 3.pdf

274-KOL-2006-(18-04-2012)-CORRESPONDENCE.pdf

274-KOL-2006-(19-01-2012)-ABSTRACT.pdf

274-KOL-2006-(19-01-2012)-AMANDED CLAIMS.pdf

274-KOL-2006-(19-01-2012)-CORRESPONDENCE.pdf

274-KOL-2006-(19-01-2012)-DESCRIPTION (COMPLETE).pdf

274-KOL-2006-(19-01-2012)-FORM 2.pdf

274-KOL-2006-(19-01-2012)-FORM 3.pdf

274-KOL-2006-(19-01-2012)-OTHERS.pdf

274-KOL-2006-(19-01-2012)-PETITION UNDER RULE 137.pdf

274-KOL-2006-(24-07-2012)-CORRESPONDENCE.pdf

274-KOL-2006-ABSTRACT.pdf

274-KOL-2006-AMANDED CLAIMS.pdf

274-KOL-2006-CORRESPONDENCE.pdf

274-KOL-2006-DESCRIPTION (COMPLETE).pdf

274-KOL-2006-DRAWINGS.pdf

274-KOL-2006-EXAMINATION REPORT REPLY RECIEVED.pdf

274-KOL-2006-FORM 1.pdf

274-KOL-2006-FORM 18.pdf

274-KOL-2006-FORM 2.pdf

274-KOL-2006-FORM 3.pdf

274-KOL-2006-OTHERS.pdf

274-KOL-2006-PA.pdf

274-KOL-2006-PETITION UNDER RULR 137.pdf


Patent Number 254805
Indian Patent Application Number 274/KOL/2006
PG Journal Number 51/2012
Publication Date 21-Dec-2012
Grant Date 19-Dec-2012
Date of Filing 27-Mar-2006
Name of Patentee FWU KUANG ENTERPRISES CO., LTD.
Applicant Address NO.239 LANE 202, CHUNG-CHENG W.RD. ERH-HANG TSUN, JEN-TE HSIANG, TAINAN HSIEN, TAIWAN
Inventors:
# Inventor's Name Inventor's Address
1 YUN-TE CHANG 11F, NO. 51, ALLEY 75, LANE 37, SEC 3, TUNG-MEN RD., TAINAN CITY, TAIWAN.
PCT International Classification Number B21J 13/04
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA