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Title:
MEASURING SYSTEM FOR MEASURING COT DIAMETER OF RUBBER COT ARBOUR IN AUTOMATIC RUBBER COT GRINDING OR BUFFING MACHINE
Document Type and Number:
WIPO Patent Application WO/2008/062461
Kind Code:
A2
Abstract:
Measuring system for measuring cot diameter of rubber cot arbour comprises on a box (16), an rubber cot arbour resting jaw (17) having a. pair of guide rods (18) with pneumatic or hydraulic cylinder provided in the said box, measuring device (s) (21) provided on the said box, said guide rods being pushed by the said cylinder, for pushing the arbours towards a cot diameter measuring device (s) (21).

Inventors:
MEVADA JITENDRA ISHWARBHAI (IN)
MISTRY NARESH AMRUTLAL (IN)
Application Number:
IN2007/000477
Publication Date:
May 29, 2008
Filing Date:
October 11, 2007
Export Citation:
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Assignee:
MEVADA JITENDRA ISHWARBHAI (IN)
MISTRY NARESH AMRUTLAL (IN)
International Classes:
B24B5/22; B24B19/22; D01H5/80
Foreign References:
EP1747848A12007-01-31
GB2173300A1986-10-08
US4562669A1986-01-07
Attorney, Agent or Firm:
TRIVEDI, Yagnesh J (Opp: Kashiram HallPolytechnic, Ahmedabad 5, IN)
Download PDF:
Claims:

Claims

1. The measuring system for measuring cot diameter of rubber cot arbour comprises of a box, an rubber cot arbour resting jaw having a pair of guide rods with pneumatic or hydraulic cylinder provided in the said box, measuring device(s) provided on the said box, said guide rods being pushed by the said cylinder for pushing the arbours towards a cot diameter measuring device(s), the said jaw being provided with a centrally divided bridge track unit with adjusting means.

2. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said box in open on tow sides.

3. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the bearing the said box is made of metal such as light weight moulded aluminum.

4. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which said guide roads are provided with liner bearings.

5. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said measuring device is a contact type electronic dial gauge.

6. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said measuring device is an electronic probe.

7. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said measuring device is non contact type digital imaging system.

8. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said measuring device is ultra sonic.

9. The Measuring system for measuring cot diameter of rubber cot arbour, according to claim 1, in which the said measuring device is laser type.

10. The Measuring system for measuring cot diameter of rubber cot arbour in claim 1 to 7, in which a measuring device is provided with digital or analog output on a LCD display via C. P. U.

11. The Measuring system for measuring cot diameter of rubber cot arbour, in which the said adjustment means provided for adjusting the centrally divided bridge track is a rack and pinion screw and nut or the like means for adjusting the central gap according to the size/gauge of the arbours, either manually or by using an electric motor or any other prime mover.

12. The Measuring system for measuring cot diameter of rubber cot arbour according in claim 1, in which the said cot diameter measuring system is provided in between unfinished rubber cot arbour conveyer unit & arbour loading- unloading carriage ahead of the grinding head unit to receive the unfinished arbours, one by one, from the unfinished arbour conveyer unit for measuring the cot diameter of unfinished arbours and removing the unsuitable arbours by rejection and collecting in the said rejection tray.

13. The Measuring system for measuring cot diameter of rubber cot arbour, is provided according in claim 1, in which the in between unfinished arbour carriage and ahed of the grinding head.

14. The Measuring system for measuring cot diameter of rubber cot arbour, is provided according to claim 1, in which the said measuring system is provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage, after the grinding head unit, to measure the cot diameter of finished arbours

and removing the unsuitable arbours and collecting them into the rejection tray and allowing only the suitable arbours to be conveyed by the finished arbour conveyer unit, into the loading magazine.

15. Automatic grinding/buffing machine incorporated with tK§ measuring rubber cot diameter of the rubber cot arbours as claimed 1 to 14.

Description:

Description

MEASURING SYSTEM FOR MEASURING COT DIAMETER OF

RUBBER COT ARBOUR IN AUTOMATIC RUBBER COT

GRINDING/BUFFING MACHINE BACKGROUND OF THE INVENTION

This invention relates to a Measuring system for measuring cot diameter of rubber cot arbour in automatic rubber cot grinding/buffing machine comprising the same.

More particularly this invention relates to a Measuring system for measuring rubber cot diameter of rubber cot arbour in which a preset range of the rubber cot is measured and provided further to the grinding head for grinding to the desired size and rejecting the rubber cot arbour which are beyond the prescribed range and this rejecter rubber cot arbour are removed and separated out in a rejection tray thereby improving the performance of the automatic rubber cot arbour grinding/buffing machine: Further the measuring systems provide the measuring diameter of the rubber cots simultaneously and comparer with the pre-set range automatically.

Rubber cot arbour mainly comprises a steel spindle or axle provided with one or two rubber cots used as top rollers in Ring Frame, Speed Frame,

Draw Frame, Combers, etc. of cotton/synthetic yarn spinning mills, in the textile industries.

The arbours or top rollers used in Draw Frames or Combers are provided with single long cot upto 400 mm in length in the middle of the axle portion, while the arbours or top rollers used in Ring Frames or Speed

Frames are provided with a pair of cots, one each at the two ends of the axle. The cots are preferably made of rubber. A very large number of top rollers or rubber cot arbours are used in a Spinning mill/machine, which work continuously rotate vary high speed.

Regular grinding of the rubber cot arbours is required for ensuring quality of yarn by reducing thread breaks and minimizing lap formation. Generally center less grinding is used for rubber cot arbours of Ring Frames and Speed Frames and 'with center grinding' is used for Draw

Frames and Comber Cots.

Measuring system for measuring rubber cot diameter are also known and used in the automatic rubber cot arbour grinding/buffing machines sold in the market under the brand name λ BERKOL' ® manufactured by ηUBER +

SUHNER'. The existing Measuring system for measuring rubber cot diameter is combined with center less grinding device which is complicated and take more time, thereby affecting production rate of the machine of the automatic rubber cot arbour grinding/buffing machine.

The Main object of this invention is to provide Measuring system for measuring rubber cot diameter of the rubber cot arbours, in which the cot diameter, measuring system is provided on the carriage ahead of the grinding head unit to receive the unfinished arbours, one by one, from the unfinished arbour conveyer unit for measuring the cot diameter of unfinished arbours for removing the unsuitable arbours by rejecting and collecting in the rejection tray and loading only the suitable unfinished rubber cot arbours on the loading-unloading carriage to be taken for grinding.

Another object of this invention is to provide Measuring system for measuring rubber cot diameter of the rubber cot arbours, in which the cot diameter measuring system is provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage ahead of the grinding head unit to receive the unfinished arbours, one by one, from the unfinished arbour conveyer unit for measuring the cot diameter of unfinished arbours and removing the unsuitable arbours by rejection and collecting in the rejection tray and loading only the suitable unfinished arbours on the loading -unloading' carriage to be taken for grinding.

Further object of this invention is to provide Measuring system for measuring rubber cot diameter of the rubber cot arbours, in which the measuring system is provided in between unfinished arbour conveyer unit & arbour loading-unloading carriage, to measure the cot diameters of finished arbours and removing the unsuitable arbours and collecting them

into the rejection tray and allowing only the suitable arbours to be conveyed by the unfinished arbour conveyer unit, into unloading magazine.

Further object of this invention is to provide measuring system for measuring rubber cot diameter of the rubber cot arbours, which while providing higher performance of the automatic rubber cot arbour grinding/buffing machine also provides a very precise range of rubber cot diameter to improved the quality of yarn produce in the spinning mills.

Accordingly measuring system for measuring rubber cot diameter of the rubber cot arbours, in which the said rubber cot diameter measuring unit is in between unfinished arbour conveyer unit & arbour loading- unloading carriage comprises of a box, an arbour resting jaw having a pair of guide rods with linear bearings and a pneumatic or hydraulic cylinder provided in the said box for pushing the arbours towards a cot diameter measuring device(s) provided on the said box, the said measuring device selected from a contact type electronic dial gauge or an electronic probe or non contact type digital imaging system or ultra sonic or laser type measuring device giving a digital or analog output on a LCD display via C. P. U (Central processing unit), the said jaw being provided with a centrally divided bridge track unit with adjusting means such as rack and pinion screw and nut or the like for adjusting the central gap according to the size/gauge of the arbours, either manually or by using an electric motor or any other

prime mover and a rejection tray provided for the collecting and rejection arbour not suitable for grinding.

The Automatic rubber cot grinding/buffing machine, in which the said cot diameter measuring system is provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage ahead of the grinding head unit to receive the unfinished arbours, one by one, from the unfinished arbour conveyer unit for measuring the cot diameter of unfinished arbours and removing the unsuitable arbours by rejection and collecting in the rejection tray and loading only the suitable unfinished arbours on the loading -unloading carriage to be taken for grinding.

The Automatic rubber cot grinding/buffing machine, in which the cot diameter measuring unit is provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage, after the grinding head unit, to measure the cot diameter of finished arbours and removing the unsuitable arbours and collecting them into the rejection tray and allowing only the suitable arbours to be conveyed by the finished arbour conveyer unit, into the loading magazine.

The invention will become more clear from the following description with reference to accompanying drawings wherein -

Fig.l :Shows from view/elevation, without side covers of the automatic rubber cot arbour grinding/buffing machine, in

which a Measuring system for measuring rubber cot diameter of the rubber cot arbours has been incorporated.

Figs.2&3 :Show front view and side view, respectively, of the Measuring system for measuring rubber cot diameter of the rubber cot arbours according to an embodiment of this invention.

Fig. 4 :Shows front view and side view of down ward measuring system.

Figs. 5 :Shows front view of a schemetic view of measuring system

Fig. 6 :Shows from view & side view of the one side measuring system.

Fig. 7 : shows side view of indicate location of measuring system

Referring to Fig. 1 , the automatic rubber cot arbour grinding/buffing machine (1) comprises of an unfinished rubber cot arbour storage unit/system or loading magazine (2) for safely storing a large number of unfinished rubber cot arbours (3) while occupying minimum floor space; a finished rubber cot arbour storage unit/system or unloading magazine (4) for safely storing a large number of finished rubber cot arbours (5) while occupying minimum floor space, provided parallely and adjacent to the

unfinished rubber cot arbours loading magazine (2) an unfinished rubber cot arbour conveyor unit/system (6) for conveying the unfinished rubber cot arbours (3) from loading magazine (2) to a measuring unit (J) one by one quickly, without consuming much time or wasting any time; a loading/unloading carriage (8) for loading the unfinished rubber cot arbour, preferably after measuring the diameter of rubber cot in the measuring unit (7) and when not rejected but found suitable for grinding and simultaneously in sequence unloading the finished rubber cot arbour (5) from arbour holder unit (9) to a rubber cot arbour holding and guiding device after grinding, to unloading conveyor unit/system (10) for onward conveying to finished rubber cot arbours storage unit/unloading magazine (4), a grinding wheel head unit (11) movable along λ X' axis and υ' axis for grinding/buffing the rubber cot arbours as per preset fixed diameter or fixed cut; a diamond dressing tool unit (12) for dressing the grinding wheel/emery stone, after grinding a predetermined number of rubber cot arbours and a control panel (13) for controlling all the operational sequences smoothly as per desired program. The various units/systems mounted on a frame (14) and enclosed in a body (15) having suitable doors, windows and covers. An electronic panel is provided on the grinding machine, having a display screen for setting and controlling all the operational sequences smoothly and displaying the same on the screen. The machine is completely closed before starting the grinding and after loading the magazine (2) with unfinished cot rubber arbours (3). The grinding operation is visible through a transparent window cover, which can be checked by the operator. After loading and starting the machine,

operator is free to attend some other jobs and will be required to attend the machine for loading the unfinished arbours (3) in the loading magazine (2) and unloading the finished arbours (5) from the unloading magazine (4).

Referring to Fig. 2 to 7, The measuring unit/system (7) according to this invention comprises a box (16), open at two sides and preferably made of metal by moulding, such as light weight moulded Aluminum for rubber cot arbour resting jaw (17) having a pair of guide rods (18) with linear bearings (19) and a pneumatic/hydraulic cylinder (20) are provided in the box (16) for pushing the finished or unfinished rubber cot arbours, vertically or horizontally towards the cot diameter measuring device (21) provided at the top of the box (16) the measuring device (21) is selected from a contact type electronic dial gauge or electronic probe or non contact type digital imaging system or ultra sonic or laser type which gives a digital or analog out put on a L.C. display. As the rubber cot arbour, for Ring Frame consist of two rubber cots at the two end of the steel axle, accordingly a pair of measuring devices (21) are provided at the top of the box (16). In order to accommodate different sizes of arbours, an adjustable centrally divided bridge track unit (22) with rack and pinion type of screw and nut type adjusting means (23), which is operated manually or by an electric motor, is provided along with the jaw (17).

The unfinished rubber cot arbours from the loading magazine (2) are picked up one by the jaws of the conveyor unit (6) and are conveyed one

by one to the measuring unit (7), in case the measuring unit is provided to measure the diameter of the unfinished rubber cot arbours (3). The unfinished arbour (3) rests over the jaw (17) of the measuring unit (7) and is pushed towards the measuring means (24) with the help of hydraulic/pneumatic cylinder (20). The pre-set range of rubber cot diameter, which is acceptable for grinding, is selected and pass on to the carriage (8) and the arbours which fall out of the range are rejected and delivered to a rejection tray(25). Thus, only the suitable arbours are further carried by the carriage (8) for grinding, thereby increasing the productivity.

Measuring system of this invention can be provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage ahead of the grinding head unit to receive the unfinished arbours, one by one, from the unfinished arbour conveyer unit for measuring the cot diameter of unfinished arbours and removing the unsuitable arbours by rejection and collecting in the rejection tray and loading only the suitable unfinished arbours on the loading -unloading carriage to be taken for grinding.

Measuring system of this invention can also be provided in between unfinished arbour conveyer unit & arbour loading- unloading carriage, after the grinding head unit, to measure the cot diameter of finished arbours and removing the unsuitable arbours and collecting them into the rejection tray and allowing only the suitable arbours to be conveyed by the finished arbour conveyer unit, into the unloading magazine.

The measuring system of this invention receives the rubber cot arbour one by one either from unfinished arbour conveyer unit or from the grinding head, compayers the rubber cot arbour diameter with the pre-set a range of rubber cot arbour diameters and conveyed further if found within the pre-set range otherwise rejects in to the rejection tray, thereby increasing the performance of the automatic grinding/buffing machine.

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