SU1574519A1 - Arrangement for separating soft parts from a stack - Google Patents

Abstract

The invention relates to elements of hoisting and transporting and robotized systems designed to capture and subsequently transfer flat soft parts such as fabrics, leather, films, and improves the reliability of operation. The device comprises a base, means for gripping a part from a foot placed on the base. A feature of the device is the execution of cams in the form of truncated coaxially mounted cylinders, with their cross-sectional planes symmetrically located about the vertical axis. The cams have on the generatrix of the friction surface ribs located along a helix at the moment of fixation of the formed fold on the part, which is separated due to its rotation by a special form of cams. 1 hp f-ly, 5 ill.

Description

The invention relates to elements of lifting and transporting and robotized systems designed to capture and subsequently transfer flat soft parts such as fabrics, leather, films, etc. and can be used in the garment, footwear and knitwear industries.

The purpose of the invention is to increase the reliability of the device.

FIG. 1 shows the general scheme of the proposed device; in fig. 2 - the moment of approaching the device to the foot; in fig. 3 the moment the fold is formed on the part to be cut; in fig. 4 - the moment of capture of the detachable part in the device; on

FIG. 5 — moment of separation of the part from the pack.

The device consists of a housing 1 placed above the base (not shown), in which, by means of a return spring 2, a rod 3 of the power cylinder is installed, in contact with a means for fixing the position, including an eccentric 4 connected to the closing spring 5 and the reset lever 6, bearing on the bottom the end of the bar 7, the ends of which are connected to opposite branches of the toothed belts 8, the enveloping pulleys 9, freely mounted on parallel axes 10 located in the housing, the pulleys being mounted on the lower

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axes rigidly connected to truncated cylindrical cams 11 means for gripping a part The working fins 12 of cams 11 are covered with a material with a high coefficient of friction and form a continuous helix at the moment of fixing the formed loop of the part, while the contact line of the forming surfaces of the cams with the part passes in a fixed position through the maximum height of the forming surfaces of the cams.

For operation, the device is fixed by the rod 3 in a vertical position in the tong of an industrial manipulator (not shown).

In the initial position, the rod 3 is in the upper position with respect to the housing 1, the working fins 12 of the cylindrical cams 11 are maximally separated from each other.

The device works as follows.

When lowering the rod. 3 devices working ribs 12 are supported in the upper part 13 of the foot. Upon further downward movement of the stem 3, it begins to move relative to the housing 1, compressing the return spring 2 and using the strap 7 attached to its lower end and connected to the opposite branches of the toothed belts 8, turn the BTJSOT and the opposite sides of the pulleys 9 to the lower axes 10, and together with them, fixed cylindrical cams 11 on them. At the same time, the working fins 12 rotate and move towards each other, rotating the upper part of the foot. 13 begin to form a fold between the cams on it until such time as it is clamped between the working ribs 12 of the cylindrical cams 11. In this position, the rod 3 stops and is fixed to the body 1 by a spring-loaded eccentric 4.

After this, the manipulator raises and moves the device with the clamped part between the working ribs of 12 cylindrical cams 11 to the specified location.

The effect of using the proposed device is expressed in increasing the reliability of separation of parts from the foot.

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Claims (2)

Improving the reliability of separation of the part from the foot is achieved due to the fact that the separating device is made in the form of truncated cylindrical cams, which. it allows the part to be clamped due to the clamping of the helical ribs located on the forming surfaces of the cams, with their relative movement, as well as at the time the fold is formed on the part to be separated, it also receives a rotational movement, which reduces its engagement with the foot. Invention Formula 1 o A device for separating soft parts from the foot, comprising a horizontal base for placing the foot, means for gripping the part located above it, including two jaws mounted in a housing rotatable in opposite directions with a friction working surface and their rotation, characterized by that, in order to increase reliability, the cams are made in the form of truncated cylinders mounted coaxially with each other and parallel to the base, and their sectional planes are facing one another and located The cables are symmetrical about the vertical axis, while the cam rotation drive has means for fixing the set position of the cam rotation during gripping, and the contact line of the cam surfaces with the workpiece passes through the maximum height of the cam surfaces, and the edges of both cam arms form continuous helix. 2. The device according to claim 1, characterized in that the cam drive includes two gears attached to the corresponding cam, and a pair of additional gears, freely mounted on a parallel axis, a pair of toothed belts covering the respective gears of each cam, a vertical actuator with a spring-loaded a rod and a horizontal bar fixed on it for interconnecting the opposite branches of both belts. 01 FIG. 2 157451 (J Fig.Z