SU761089A1 - Apparatus for feeding material to working machine - Google Patents

Description

The invention relates to the field of automation of production processes, can be used to supply material to the processing machine, in particular to the press. five

A device for feeding material to a processing machine is known, comprising moving along guides fixed in the housing and connected to a vertically mounted drive shaft up through a crank-connecting rod mechanism a feed carriage carrying the lower jaw sponge and the upper movable jaw sponge driven from the drive spindle. the shaft through the transforming mechanism [11] The disadvantages of the known device are the insufficient accuracy of the feed step and the increase in the forces acting on the drive shaft. 20

The purpose of the invention is to improve the accuracy of the feed pitch and reduce the forces acting on the drive shaft.

This goal is achieved by the fact that the upper clamping jaw is made of 25 two spring-loaded parts relative to the other, and the transforming mechanism is designed as an additional connecting rod, one end of which is connected to the crank of the crank-connecting rod mechanism, and the other

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The goy is hinged on the feeding carriage, and the cam mounted on the connecting rod with the possibility of interaction with the upper clamping sponge.

FIG. 1 shows a general view of the device; in fig. 2 — section A — A of FIG. I.

Device for feeding material to the processing machine, includes a housing 1, in which in the rolling bearings 2 a drive shaft 3 is vertically mounted with a disk 4, in whose guides a slider 5 with a finger 6 is mounted. The slider 5 moves in the guides of the disk 4 with a screw 7.

Guides 8 are installed in the housing 1, along which the feed carriage 9 moves, driven by a connecting rod 10, one end of which is connected to the finger 6, and the other end is connected to the finger 11 attached to the carriage 9, on which the finger 12 is also attached, connected to one of the ends of the lever 13, on the other end of which a groove is made, a stone 14 is placed in it, fixed on the finger 6.

On the lever 13 is fixed cam 15, interacting with the roller 16 mounted on the upper part 17 of the clamping jaw 18. The upper part 17 is connected to the lower part 19 by means of guides 20, on which between the upper 17 and lower 19

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parts of the sponge 18 are mounted with cup springs 21. The guides 20 are mounted in the carriage 9 and in their lower part there are springs 22, which press the roller 16 to the cam 15.

In the lower part 19 of the jaw 18, a hole 23 is made, in which the cam 24 is placed. The lower clamping jaw 25 is fixed to the beam 26, which is connected to the carriage body 9 with screws 27 and nuts 28.

In case 1, an upper clamping jaw 29 is installed with a roller 30, which cooperates with an adjustable cam 31 fixed to the disk 4. The sponge 29 is spring-loaded by a spring 32, the force of which is adjusted by a nut 33. The lower clamping jaw 34 is installed in the case, its position is adjusted screw 35. The connecting rod has bearings 36.

Device for feeding material to the processing machine works as follows.

The torque from the eccentric shaft of the press (not shown in the drawing) is transmitted to the drive shaft 3 by disc 4.

The crank pin 6, rotating with the disk 4, interacts with the connecting rod 10, which, through the finger 11, causes the carriage 9 to reciprocate along the guides 8. In the initial position, the carriage 9 is in the leftmost position. The lever 13 is set in a position in which the shoulder of the cam 15 presses the roller 16. The upper part 17 of the jaw 18 under the action of the roller 16 acts on the springs 21, and the latter transfer force to the lower part 19 of the jaw 18. Moving to the lower clamping sponge 25, the lower part 19 clamps tape material. In this position, the cam 31 of the disc 4 runs onto the roller 30 and, overcoming the force of the spring 32, lifts the sponge 29. A material is fed into the gap between the jaws 29 and 34 (not shown). From the initial position, i.e. the leftmost position, by the connecting rod 10, the carriage 9 moves the clamped tape material to the rightmost position by a given step. When the carriage 9 reaches the rightmost position, roller 16 os4

It is exempted from the ledge of the cam 15 and is in the unstressed state. The upper 17 and lower 19 parts of the sponge 18 are pressed to the upper position by the action of the springs 22. The sponges 18 and 25 are in the decompressed state. They are prepared to move the carriage 9 to its original position to grip the tape material.

The sponge 29 at this time presses the tape material by the action of the spring 32 to the sponge 34. When the connecting rod 10 moves, the carriage 9 moves to the initial position, i.e., to the extreme left position. In the future, the cycle of movements is repeated. The filling of the tape material is carried out by raising the lower part 19 of the jaw 18 by means of a cam 24 mounted in the carriage 9. The stroke of the carriage 9 is adjusted by means of a screw 7.

Claims (1)

Claim Device for feeding material to the processing machine, containing moving along guides fixed in the housing and connected with a vertically mounted drive shaft through a crank-connecting rod mechanism feeding carriage carrying the lower clamping sponge and the upper movable clamping sponge driven from the drive shaft through the transforming mechanism, characterized in that, in order to improve the accuracy of the feed pitch and reduce the forces acting on the drive shaft, the upper clamping jaw is made of two spring-loaded one relative to the other parts, and the transforming mechanism is designed as an additional connecting rod, one end of which is connected to the crank of the crank connecting rod mechanism, and the other is hinged to the feed carriage, and a cam attached to the additional connecting rod with the possibility of interaction with the upper jaw sponge.