Title of Invention

AN AUTOMATIC RUBBER COT ARBOUR GRINDING MACHINE

Abstract

An automatic rubber cot arbour grinding / buffing machine comprising an unfinished arbour storage unit / loading machine for safe storing of a large number of unfinished arbour in minimum floor space, an unifinished arbour conveyer unit provided adjacent to the said loading magazine for taking the arbour from the said loading magazine and smooth conveying to a measuring unit, or a carriage one by one, a rubber cot diameter measuring unit, provided adjacent to the said unfinished arbour conveyer unit, for measuring the cot diameter one by one and comparing with the predetermined set diameter, as preprogrammed for rejecting of the arbours, not suitable for grinding in the rejection tray, a loading – unloading carriage provided adjacent to the said measuring unit, for loading unfinished arbours to an arbour holder unit for grinding and simultaneously unloading finished arbour after grinding into a finished arbour conveyer unit, a center less rubber cot arbour holding and guiding the device provided substantially perpendicularly to the said arbour loading – unloading carriage, for one by one holding and precisely guiding the unfinished arbour for grinding and pushing out the finished arbour after grinding, on to the said carriage for unloading, a grinding wheel head unit, provided adjacent to the said arbour holder unit, movable along X-axis and Y-axis for grinding / buffing the rubber cot arbours as per presetting of fix diameter or fix cut, a dressing tool unit, provided adjacent to the said grinding wheelhead unit, for dressing the grinding wheel after grinding whel after grinding a predetermined number of arbours, a finished arbour conveyer unit, provided adjacent to the said carriage on its unloading end for smoothly conveying the finished arbour one by one to a finished arbour storage unit / unloading magazine provided adjacent to the finished arbur storage unit and adjacent and parallel to the said unfinished arbour storage unit / loading magazine. A control panel for controlling all the operations of arbour grinding machine in a sequence as per desired program, all the units being mounted on a main frame and enclosed in a body having suitable doors, windows and covers.

Full Text

FORM - 2 THE PATENTS ACT, 1970 (39 of 1970) PROVISIONAL SPECIFICATION (See section 10; rule 13) "AUTOMATIC RUBBER COT GRINDING/BUFFING MACHINE FOR GRINDING/BUFFING RUBBER COT ARBOUR" MEVADA, JITENDRAISHWARBHAI Indian National 11, Hasubhai Park, Opp: Shalin Bunglows, Thaltej, Ahmedabad, Gujarat State, India. AND MISTRY, NARESH AMRUTLAL Indian National 102, Manekbaug Society, Ambawadi, Ahmedabad-380 015, Gujarat State, India. The following specification describes the invention: 2 This invention relates to an automatic rubber cot arbour grinding/buffing machine. More particularly, this invention relates to an automatic rubber cot grinding machine in which the finished/unfinished rubber cot arbour, storage magazines are provided to form a compact 'U' shape path. The unit conveyor system is provided for conveying the rubber cot arbour to the machine system which is first measures the desired diameter of the rubber cot, and if rejected, is removed without feeding to the grinding machine head. When found suitable for grinding I is carried to the grinding head thereby, continuing the measuring as well as the grinding operation simultaneously for increasing the production rate. In a prior art rubber cot arbour grinding machine measuring the rubber cot diameter is done manually and loading and unloading is also carried out manually, which operation is prone to accident. Also stone dress is manually resulting into time consuming process leading to a very low production. An automatic rubber cot armour grinding machine is also known in the art, but then the machine is also having a very low storage capacity. Unfinished rubber cot arbours are stored on one side of the machine towards the grinding head unit and the finished rubber cot arbour storage magazine are provided to the other end of the machine thereby, making long path for loading and unloading the rubber cot arbours. The floor space required for the machine is comparatively very low. Various operations are quite complicated i.e. the arbour is lifted by robot type device which first picks the arbour and then feeds it to the grinding head through the diameter of the rubber cot machine and if the diameter is not found suitable, the arbour is rejected at the robot arm turning away and releasing the rejected arbour in the tray and then picking another arbour repeating the same process. During all these process the actual time for grinding operation remains unperformed, as such the production of the machine is very low. In the prior art machine various process steps are not sequentially performed and the system is quite complicated. The machine is not having ergonomic design concept and is not suitable for easy maintenance, not easy for operation, visibility of the operator is very poor. It is having fixed type of operation panel and the machine is not compact. Further, in the grinding head unit, the job of holding the unit is traversing, while grinding the head remains stationery, which also a complicated system. 3 The main object of this invention is to provide automatic rubber cot arbour grinding/buffing machine, which is quite compact having ergonomic design concept, is having large storage capacity for unfinished as well as finished rubber cot arbours. The rubber cot arbour path is in 'U' shape and quite compact. Cot diameter measuring is carried out before feeding the arbour to the grinding head and the grinding as well as the measuring operations are carried simultaneously thereby, providing sequential operation resulting into increased production of the machine. An automatic rubber cot arbour grinding/buffing machine mainly comprises of a storage magazine for storing large quantity of unfinished rubber cot arbours in number of inclined racks mounted vertically one above the other, which stores very large number of arbours and feeds to the conveyer which moves vertically, picking arbours in the hooks prided in the conveyor and which are fed one by one to the cod diameter measuring unit mounted on the carriage. The said carriage is provided to the T bracket arbour holding device which feeds the arbour to the grinding head and after grinding it is transferred to another conveyor and from i9t it is fed to the finished arbour storage magazine. Holding operations are made fully automatic with the help of a CPO, through the control panel. The measuring unit will measure the diameter, which is fed to the servo motor of the centerless unit through the CPU. The grinding head is set either according to the fixed diameter or according to the fixed cot for grinding. Measuring system may be provided before grinding and/or after grinding. Various units of measuring are illustrated in the accompanying drawings. The basic purpose of this invention to make automatic machine sequence easy and avoid complicated mechanism. Also try to reduce has a very law number of branching. Due to that mechanical loss is reduce. Also machine design is cover all ergonomic aspect, which helps to operate machine by operator easily and safely. One more solution of problem according to this invention is in the fact that the try to large storage capacity in minimum floor space require in compare to known automatic cot grinding machine. The conveying system of storage magazine heaving very low number of branching and compact design due to that mechanical loss is avoided. 4 The measuring device also separate from centreless device which mean the diameter of rubber cot arbour measure and reject before grinding / buffing operation so the auto sequence of grinding / buffing to continually work without any stoppage. It is help to increase production rate. The holding device is direct couple with drive element with special coupling to avoid mechanical losses at the time of working which help to increase surface finish of rubber cot arbour also the cot guide shaft directly coupled in line with gear box which drive cot guide shaft which help to rotate shaft smoothly without jerking whteh help to improve surface finish The emery stone sleeve and main shaft of emery stone is design in one pes to avoid vibration free and smooth rotating. Also the main and related slide specially design to slide smoothly with maintain position accuracy by help of ball screws & nut. Which mean it is effect directly to accuracy of cot diameter. Auto Sequence of Machine The Auto sequence of Machine is dividing in difference zone like. Unfinished Rubber cot Arbour storage magazine with conveyer system. In this sequence in racks (1) loaded with unfinished rubber cot arbour that delivers to Measuring System (C) by loading conveyer (B) that have special type of jaw (5) which pick rubber cot arbour one by one from rack (1) and deliver to measuring System (C). The measuring System (C) measure the diameter of rubber cot arbour diameter in refer of set diameter one side or two side and deliver to loading carriage (D). The loading carriage (24a). Deliver measure rubber cot arbour to a rejection tray or if diameter acceptable for grinding/buffing. Then its deliver to rubber cot arbour holder (31a) for grinding /buffing. The rubber cot arbour holder (31a) deliver and rest the rubber cot arbour on cot guide shaft (32) which Rotate rubber cot arbour. Mean time wheel head unit (43) start to move forward direction. To grinding/buffing rubber cot arbour with help of servo motor (48). Which rotate ball screw and nut (47,47a). As per set fix diameter or fix cut 5 after grinding /buffing wheel head (43) goes to reveres direction and stop at its home position and same time the holding device (30) reveres the cot arbour holder and holder rest on resting support (31b) and holder is open then rubber cot arbour eject by ejector cylinder (31c) and deliver to unloading carriage (24). Unloading carriage (24) deliver rubber cot arbour to finish rubber cot arbour magazine (H) and same time again loading carriage (24a) deliver rubber cot arbour to cot arbour holder (31a) for next sequence. The Automatic online dressing sequence, which dress the emery stone (37) surface as per set cycle for example. Set dressing cycle is 1000-rubber cot Arbour means after 1000 rubber cot arbour grinding/buffing. The Diamond dresser (69) came automatic, which cut the emery stone surface as per the set amount. This Invention is explained in more details after ward with the help of the diagrammatically represented type models. It is shown in accompanying drawing. Fig - A: - Front view, Side view & Top view of unfinished rubber cot arbour loading storage magazine. Fig - B: - Front view, Side view of Unfinished rubber cot arbour conveyer system. Fig - C: - Front view & side view of Measuring System. Fig - D: - Top view & side view of Loading/Unloading Carriage for unfinished or Finished rubber cot arbour. Fig - E: - Top view & side view of Center less Rubber cot Arbour Holding & Guiding Device. Fig - F: - Front view & top view of wheel head unit. Fig - G: - Front view & side Finished rubber cot arbour conveyer system. Fig - H: - Front view, Side view & Top view of Finished rubber cot arbour loading Storage magazine. 6 Fig -1: - Diamond dressing tool carriage. Fig - J: - A schematic view of machine. Fig -A Unfinished rubber cot arbour loading Storage Magazine Introduction This is the storage magazine for unfinished rubber cot arbour. This storage magazine has a large storage capacity of 500 unfinished rubber cot arbours in minimum space. It gives safety again unfinished rubber cot arbour damage. Construction The construction of unfinished rubber cot arbour loading storage magazine is no of straight rack (1) mounted on aluminum or mild steel frame (2) This rack having two frames, its adjustable in reference of centrally divides by means of screw/nut system or rack/pinion (3,3a,3b,3c). This adjustment done by hand wheel manually or motorized system (4). All straight rack slope is inclined towards jaw. Fig - B Unfinished rubber cot arbour conveyer System Introduction This is the unit, which is conveying the unfinished rubber cot arbour from unfinished rubber cot arbour loading storage magazine to measuring unit one by one without time consuming. Construction The construction of unfinished rubber cot arbour conveyer system is special type of multiple jaws (5) mounted on chain (6) with special pin, nut & washers (7). Jaw with chain moving with & on two special constructed chain wheels & bearing system(8,8a,8b,8c) drives by A.C. or D.C. electrical geared motor(9) clockwise or 7 anticlockwise. Jaw with chain & chain wheel mounted on aluminum lightweight machined column in two part (10), one is adjustable & one fix. Above complete assembled columns (2nos.) mounted on (2nos) vertical steel columns(11) which is fix on main machine frame with included assembly of spline shaft & bearing system(12). Aluminum columns with chain, jaw & chain wheel is adjustable in reference of centrally divides & controlled by one hand wheel manually or motorized system(13) as per rubber cot arbour gauge. Fig - C Measuring System Introduction This is the unit, which measures unfinished or finished rubber cot arbour diameter in automatic or manual functions by use of electronically, & pneumatic air controlled cylinder. Construction The construction of measuring system is aluminum molded light weight two side open box(14) with rubber cot arbour resting jaw(15) guided by two rods(16) slide in linear bearings(17) & pneumatic cylinder (18) which vertically or horizontally push towards measuring device (19) which is mounted on top of box. Measuring device means of contact type of electronic dial gauge or electronic probe or non contact type of digital imaging system or ultra sonic or laser type which giving digital or analog output. There is one adjustable in reference to centrally divide bridge track unit(20) constructed with rack & pinion or screw/nut mechanism(21) for adjustment as per rubber cot arbour gauge. Fig - D Loading/Unloading Carriage for unfinished or finished rubber cot arbour Introduction This is the unit, which is used to loading unfinished rubber cot arbour from measuring unit to rejection tray or rubber cot arbour holder. Loading finished rubber cot arbour 8 from rubber cot arbour holder to finish rubber cot arbour loading Storage magazine. Both sequence working at a time simultaneously for time saving. Construction The construction of loading/unloading carriage for unfinished or finished rubber cot arbour is one aluminum or steel plate (22) mounted on pneumatic or electrical driven linear slide (23). On the aluminum or steel plate there is a two bridge track unit assembly(24,24a) provided with pneumatic or mechanical stopper(25,25a) for convey one by one unfinished & finished rubber cot arbour to rubber cot arbour holder & finished rubber cot arbour unloading storage magazine, these both assembly one is at measuring side & one is at finish magazine side adjustable in reference to centrally divide constructed with rack & pinion or screw/nut(26,26a) mechanism for adjustment as per rubber cot arbour gauge. Fig - E Center less Rubber Cot Arbour Holding & Guiding Device Introduction This is the unit, which is hold & guide the rubber cot arbour during grinding operation precisely. It is rotary movable at its home position & grinding zone. This unit facilitated with efficient suction system to extract the rubber dust. Construction The construction of holding device is fitted on cast iron molded or steel fabricated box (27). The device assembly having one T type of bracket (28), which is guided on needle or ball bearing housing (29), this T bracket coupled (30a) with pneumatic rotary device or electromechanical device (30). On this T bracket, one fix shaft (31) is fitted to fix up suitable rubber cot arbour holder (31 a).Also one resting support (31b) & ejector fitted with pneumatic cylinder (31c). The constructions of guiding device are fitted on cast iron molded or steel fabricated box (27). The device assembly having one knurled shaft (32) & rubber dust cleaning brush (33), which guided on needle or ball bearing pedestals (34), A.C. or D.C. electrical geared motor (35) drives the knurled shaft & rubber dust cleaning brush clockwise or anticlockwise. 9 On this unit there is one suction device (36) provided for suck the rubber dust during grinding or buffing time. Fig-F Wheel head Unit Introduction This is the unit, which is having emery stone assembly & cut feed slide for grind & buff the rubber cot as per SET FIX DIAMETER OR FIX CUT. Construction The construction of emery stone assembly is having emery stone (37) fixed on one steel or aluminum ground sleeve (38) by help of adhesive, this emery stone with sleeve fitted on steel shaft (39) by check nut (40) guided at both end with ball or roller bearing housing (41). One A.C. or D.C. electrical motor (42) drives the emery stone assembly clockwise or anticlockwise. Complete Stone assembly fitted on cast iron molded body with cap, which is called upper part (43) The construction of cut feed slide is in three stage & two axis x,y axis. First stage is fix bottom part(44), second is middle part(45) traverse in x axis with upper part(43), emery stone assembly & electric motor together & third is upper part(43) reciprocate in y axis with emery stone assembly. Bottom part (44) having a cast iron molded body constructed with male/female 'V type rail (46), Two male/female rails equipped with needle cages (46a). The cages are made of plastic and brass. The plastic cages are molded in single elements, which can be assembled by means of dovetail snap in ends. Bottom part also included with one precision ball screw & nut assembly(47,47a) guided with bearing housing for give a traverse movement to middle part in x-axis forward & reverse with upper part, emery stone assembly & electric motor(42) together. A.C.SERVO OR STEPPER (48) motor coupled inline with ball screw by special type of flexible coupling (49). 10 Middle part (45) having a cast iron molded body constructed with male/female rail, male/female rails equipped with needle cages (46). The cages are made of plastic and brass. The plastic cages are molded in single elements, which can be assembled by means of dovetail snap in ends. Middle part also included with one geared motor equipped with eccentric bearing (50) for gives a reciprocating movement to upper part in y-axis with emery stone assembly & electric motor (42) together. Fig - G Finished rubber cot arbour conveyer System Introduction This is the unit, which is conveying the finished rubber cot arbour from bridge track unit assembly provided with pneumatic or mechanical stopper of loading/unloading carriage for unfinished or finished rubber cot arbour to finished rubber cot arbour loading storage magazine one by one without time consuming. Construction The construction of finished rubber cot arbour conveyer system is special type of multiple jaws (51) mounted on chain (52) with special pin, nut & washers (53). Jaw with chain moving with & on two special constructed chain wheels & bearing system(54,54a,54b,54c) drives by A.C. or D.C. electrical geared motor(55) clockwise or anticlockwise. Jaw with chain & chain wheel mounted on aluminum lightweight machined column in two part (56), one is adjustable & one fix. Above complete assembled columns (2nos.) mounted on (2nos) vertical steel columns(57) which is fix on main machine frame with included assembly of spline shaft & bearing system(58). Aluminum columns with chain, jaw & chain wheel is adjustable in reference of centrally divides & controlled by one hand wheel manually or motorized system (59) as per rubber cot arbour gauge. Fig - H Finished rubber cot arbour loading Storage Magazine Introduction 11 This is the storage magazine for finished rubber cot arbour. This storage magazine has a large storage capacity of 500 unfinished rubber cot arbours in minimum space. It gives safety again finished rubber cot arbour damage. Construction The construction of finished rubber cot arbour loading storage magazine is no of straight rack(60) mounted on aluminum or mild steel frame(61). This rack having two frames, its adjustable in reference of centrally divides by means of screw/nut(62,62a,62b,62c) system or rack/pinion. This adjustment done by hand wheel manually or motorized system (63). All straight rack slopes is inclined opposite unfinished rubber cot arbour loading storage magazine rack Fig -1 Diamond dressing tool carriage Introduction This is the unit, which is dress (truing up) the emery stone surface by use of special multiple or single point diamond dresser (69). Construction The construction of dressing Unit is steel-machined base plate (64) with linear motion guide unit complete with block & rail (65,65a) 2nos. For slide dressing, carriage (66) fitted with Diamond Dresser (69) with the help of one precision ball screw & nut assembly (67,67a). One A.C. or D.C. electrical geared motor (68) drives the ball screw clockwise & anticlockwise. Dated this 7th day of October, 2006 To, The Controller of Patents Patent Office Branch, Mumbai.

Documents:

1682-MUM-2006-ABSTRACT(19-10-2011).pdf

1682-mum-2006-abstract(3-1-2007).pdf

1682-MUM-2006-AMENDED PAGES OF SPECIFICATION-050215.pdf

1682-mum-2006-claims(3-1-2007).pdf

1682-MUM-2006-CLAIMS(AMENDED)-(10-10-2014).pdf

1682-MUM-2006-CLAIMS(AMENDED)-(19-10-2011).pdf

1682-MUM-2006-CLAIMS(AMENDED)-050215.pdf

1682-MUM-2006-CORRESPONDENCE(14-7-2014).pdf

1682-MUM-2006-CORRESPONDENCE(21-7-2010).pdf

1682-MUM-2006-CORRESPONDENCE(24-07-2008).pdf

1682-MUM-2006-CORRESPONDENCE(29-10-2012).pdf

1682-mum-2006-correspondence(7-12-2007).pdf

1682-MUM-2006-CORRESPONDENCE(8-02-2010).pdf

1682-mum-2006-correspondence-received.pdf

1682-mum-2006-description (provisional).pdf

1682-mum-2006-description(complete)-(3-1-2007).pdf

1682-mum-2006-drawing(3-1-2007).pdf

1682-mum-2006-drawings.pdf

1682-mum-2006-form 18(7-12-2007).pdf

1682-mum-2006-form 2(3-1-2007).pdf

1682-MUM-2006-FORM 2(TITLE PAGE)-(10-10-2014).pdf

1682-MUM-2006-FORM 2(TITLE PAGE)-(19-10-2011).pdf

1682-mum-2006-form 2(title page)-(3-1-2007).pdf

1682-MUM-2006-FORM 2(TITLE PAGE)-050215.pdf

1682-MUM-2006-FORM 3(10-10-2014).pdf

1682-MUM-2006-FORM 3(19-10-2011).pdf

1682-mum-2006-form 5(3-1-2007).pdf

1682-mum-2006-form 9(16-4-2007).pdf

1682-mum-2006-form-1.pdf

1682-mum-2006-form-2.doc

1682-mum-2006-form-2.pdf

1682-mum-2006-form-26.pdf

1682-mum-2006-form-3.pdf

1682-MUM-2006-MARKED COPY(10-10-2014).pdf

1682-MUM-2006-MARKED COPY-050215.pdf

1682-MUM-2006-OTHER DOCUMENT-050215.pdf

1682-MUM-2006-REPLY TO EXAMINATION(19-10-2011).pdf

1682-MUM-2006-REPLY TO HEARING(10-10-2014).pdf

1682-MUM-2006-REPLY TO HEARING-050215.tif

1682-MUM-2006-SPECIFICATION(AMENDED)-(10-10-2014).pdf

1682-MUM-2006-SPECIFICATION(AMENDED)-(19-10-2011).pdf

1682-MUM-2006-UNDER SECTION 8(2)-(10-10-2014).pdf

Clean copy of the Amended Complete specification 1682MUM2006 222015.pdf

FORM 13 1682MUM2006.pdf

Form 3.pdf

Marked Copy of the Amended Complete Specification 1682MUM2006 222015.pdf

Petition for delay in filing form 13 1682mum2006.pdf

petition.pdf