SU1601056A1 - Arrangement for connecting ends of synthetic material - Google Patents

Abstract

The invention relates to light industry, namely, leather haberdashery, and can be used in the manufacture of, for example, shoulder straps for knapsacks, pens for sports bags. The purpose of the invention is to increase the reliability of work. The device comprises a movable plate for the material. A plunger, spring-loaded with a return spring, is placed above the plate, which is connected by a double-arm lever to its control mechanism. The latter has a cam that is rotatable from the drive and is connected to one of the arms of the two shoulders, the cam contacts the thermoelement, and the eccentric is connected to the switch. 1 hp ff, 4 ill.

Description

The invention relates to light permeability, namely leather leather, and can be used. in the manufacture of shoulder straps for knapsacks, pens for sports bags and similar products.

The aim of the invention is to increase the reliability of operation.

On league. 1 shows the device look species; in fig. 2 - the same, rione-river section; Fig. 3 is the same cross section of the joint at the time of bonding the ends of the material; in fig. 4 - electric circuit of the control system.

A device for joining the ends of a synthetic material, such as a belt, contains a frame 1 (Fig. 1-3), which represents

a welded steel structure. In the frame, movable plate 3 with limiter nr 4 is placed in guides 2 for feeding material into the joint zone. Above the latter is placed a tool ™, consisting of a supporting surface, made in the form of a pusher 5 ,. installed in the guide bushing 6 and spring loaded by the return spring 7. The pusher has a drive for its vertical movement, which is made in the form of a double arm with one arm with the upper end of the pusher 5 The device has a control mechanism for the pressing tool, which contains an electric motor 9 connected by means of a wedge-belt transmission 10 with scoop t gearbox 1 1, on the axis

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the cam 12 and the copier 13 are fixed, it is charged for the whole with the cam. The eccentric 14 is fixed on the side surface of the cowl 13, interacting with the switch 1 5 Copier 13 is connected to the second shoulder of the two-arm lever 8, and cam 12 is in contact through the spring-loaded lever 16 with the thermal element 18 to move it to the joint zone.

The electrical circuit (FIG. 4) contains a step-down transformer 19, which at one end is connected to an electronic voltage regulator 20, and the other to a circuit breaker 21 with an interlocking device, which is connected to a magnetic starter KI / 22 and a switch 15, which ry, in his oc.redd, connected to the start button 23.

The device works in the following way.

By moving the movable plate 3 (Lig. 1-3) to itself, the worker lays the part on it between the restraints 4 - the double folded end of the material, which is kept in the folded state by means of the stops, after which the movable plate together with the detail JS takes to the initial setting turns on the automatic switch 21, at the moment of switching on of which the heating of the thermoelement 18 starts, and pressing the start button 23 triggers the magnetic actuator KA 22, which, by its contacts Cd / 1, K, / 2, K | / 3, turns on the electric motor), and is magnetic

starter 22 becomes locked.

From the electric motor 9 (FIG. 1), the movement is transmitted through the V-belt transmission 10 to the worm gear 11, cam 12, eccentric 14 with cam 13, while the cam 12 presses the end of the thermoelement 18 (Fig. 2) and drives it the zone where the thermoelement is between the inner sides of the material folded in half, melts its surfaces, and remains there until the cam in the process of circular movement pushes the end of the thermoelement in the working zone. As soon as the cam 12 releases the thermoelement, the latter, by means of the spring 16, leaves the joint zone and becomes

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c to the initial position, and the copier 13, the drive n movement of the double-arm lever 8 (Fig. 2), sets in motion the shovel, 5, which, falling under the action of the double-arm lever 8, compresses the melted internal surfaces of the material and holds it to those pores in a compressed state until the cam, rotating with the eccentric 14, presses the switch 15, which causes the actuator coil to break the supply circuit, and the system is turned off, and the pusher 5 released from the active lever 8 under the action of the return spring 7 (FIG. 3) becomes ex. bottom up position. The fastening point occurs in one revolution of the copier 13. By applying the movable plate 3 to itself, the worker removes the fastened (welded) end of the belt and lays the next part between the limiters.

The cycle of bonding (welding) synthetic lita is repeated. During the laying of the next part on the plate between the limiters -4, the electric motor is in a static position.

Claims (2)

1. A device for connecting the ends of a synthetic material, containing gotostina to the pre-moving material to feed the joint area, pressing means, having a support element with a return spring placed above the connection area, driving it vertically alternating, pressing mechanism control mechanism, having an eccentric connected to the switch and thermoelement, which is due to the fact that, in order to ensure reliable operation, the control mechanism of the pressing means has a rotary cam and a copier, executed in one integral with the cam, wherein ekspentrik disposed on the side surface of the copier, the support surface of the means for clamping is formed as a set in the vertical direction L yu1tsey pusher, the last drive is designed as a double-armed lever, one arm of which interacts with the upper the end of the pusher, and the other with a cam, the thermoelement is movable and interacts with the cam by means of a spring-loaded lever. 2. A device according to claim 1, in which it is 1 t has a gearbox, and a cam is fixed on its shaft for turning the cam. Phie. 7 6 & ff. /// A //////////////////////////// ////////////////// ///// --BSS m Fig.Z / 3 Phage.2