Sheet feeding or delivering – Feeding – By means to convey sheet
Patent
1986-11-14
1988-11-01
Schacher, Richard A.
Sheet feeding or delivering
Feeding
By means to convey sheet
271 84, 271182, B65H 2946
Patent
active
047813695
DESCRIPTION:
DESCRIPTION
Referring to the drawings, fabric piece 6 is delivered by a suitable equipment onto the upwardly directed low friction surface of the plate 7. The plate 7 is of a rigid nature and preferably is metal, such as aluminium, with the upper surface polished to provide a suitable low friction finish. Plate 7 is supported by a carriage (not shown) supported by a plurality of wheels 10 moving on a pair of tracks 11 which extend to a position beneath a bench 8 along which the fabric piece 6 will travel while subject to various manufacturing processors. The aforementioned position is such as to allow plate 7 (at station 2) and hence fabric 6, to be directly beneath a frictional gripping device 9 (to be lowered onto the fabric piece 6) for further transporting said fabric piece 6. The bench 8 has a pair of recesses (not shown) for allowing access to the wheels 10 to bench 8. The upper surface of the bench 8 is likewise of a relatively low friction nature and may conveniently be in the form of polished metal or one of the many known polished finish composite laminate sheets. When plate 7 arrives at station 2 it rests flat of the bench 8, and will slide freely thereon.
The carriage supporting plate 7 is attached to and actuated by a suitable mechanism to effect movement of the carriage between stations 1 and 2. The movement of the carriage may be effected by an air actuated pistonless cylinder controlled to achieve reciprocating movement of the plate 7 between stations 1 and 2 in time relation with other operations of the machine.
The fabric piece 6 is initially deposited on the plate 7 by any suitable means, such as the apparatus described in our co-pending patent application No. PCT/AU84/00169. Further, as described in that co-pending patent application two superimposed pieces of fabric may be deposited on to the plate 7 in sequence. The carriage supporting plate 7 is then advanced from station 1 to station 2 under the action of an air cylinder. After the plate 7 has become stationary at station 2, frictional gripping device 9 (shown in FIGS. 3A to 3D) is lowered onto the fabric piece 6.
Frictional gripping device 9 may be raised and lowered by a pair of clamps 12 mounted on arm 13, both clamps 12 and arm 13 being actuated for clamping/unclamping and up/down movement respectively by air actuating mechanism 14 mounted on frame 15. Clamps 12 co-operate with pins 15 to effect clamping of the frictional gripping device 9 (cf FIGS. 3A to 3D).
Frame 15 also supports a conveyor system 16 for transporting a plurality of said frictional gripping devices 9 to said clamps 12 for lowering onto said fabric piece 6 at station 2.
FIG. 3A shows the position of the gripping device 9 before engagement by clamps 12 above the fabric piece 6. FIGS. 3B and 3C show gripping device 9 being clamped by clamps 12 before lowering onto the fabric piece 6, and FIG. 3D shows the engagement of the gripping device 9 with fabric piece 6 supported on bench 8 after lowering of said gripping device 9.
The frictional gripping device 9 may have a surface to engage the fabric piece which has a configuration selected so that it will only frictionally contact the fabric piece so pieces 6. Also the perimeter contour of the frictional gripping device 9 is such that it will follow the general perimeter contour of the fabric 6, with only a relatively small portion of the fabric lying outside the area of contact of the frictional gripping device 9 (cf FIG. 3D). The necessary degree of frictional grip between the gripping device 9 and the surface of the fabric piece 6 may be achieved by coating or covering the relevant surface of the gripping device with a suitable material to provide the required degree of friction. One suitable material is conventional abrading sheet material sometimes referred to as emery paper.
The degree of frictional grip between this friction material and the fabric is such that operation of the air cylinder connected to the carriage supporting plate 7 to draw the plate in the direction from station 2 towards station 1 will cause plate 7 to s
REFERENCES:
patent: 3405932 (1968-10-01), Dame
patent: 4102284 (1978-07-01), Rohr
patent: 4157823 (1979-06-01), Morton
Pacific Dunlop Limited
Philpitt Fred
Schacher Richard A,.
LandOfFree
Transporting limp fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transporting limp fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transporting limp fabric will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-886206