SU1045985A1 - Arrangement for delivery of elongated material to the working zone - Google Patents

Description

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The invention relates to the cold working of metals and can be used to feed a lengthy material into a treatment zone, in particular a die;

A device for feeding long-length material to a treatment area is known, comprising a feed carriage driven by a drive from the base, a braking unit having a housing mounted on the base with a working cavity, a piston, with a rod, adjustable throttles connecting the working cavity with the atmosphere , the feed pitch adjustment mechanism, made in the form of adjustable stops fixed on jlTOKe with the possibility of alternate interaction with the feeding carriage 1.

The disadvantages of the known devices are the complexity of the design and large size.

Closest to the invention is a device for feeding a lengthy material into a treatment zone containing a feed carriage moving along a base and spring-loaded in the material feed direction, a feed pitch adjustment mechanism, a braking unit located on the material feed side and having a housing with a working cavity, a rod - plunger with a through axial bore, installed in the working cavity parallel to the direction of the material feed and interacting with one of the ends with the base LZ.

The disadvantages of the known device are low feed accuracy and unreliability in operation.

The purpose of the invention is to improve the accuracy of supply and reliability of the device.

The goal is achieved by the fact that in the device for feeding a lengthy material into the treatment area, containing a feeding carriage moving along the base and spring-loaded in the material feeding direction, a pitch adjustment mechanism, a braking unit located on the material supply side and having a housing with a working cavity, a rod - plunger with a through axial bore, installed in the working cavity parallel to the direction of material feed and interacting with one of the ends with the base, the body of the brake assembly .- 2

mounted on the feed carriage and the braking unit is equipped with an adjustable choke connecting the working cavity with the atmosphere, the plunger rod is spring-loaded in the material feed direction, and the feed pitch adjustment mechanism is designed as a screw screwed into the housing with the possibility of interaction with the other end of the rod - plunger.

FIG. 1 shows a device for feeding a lengthy material into a treatment zone, a section; in fig. 2 brake assembly.

The device for feeding the lengthy material to the treatment zone contains the bottom plate 1 with the die 2, the top plate 3 with the punch holder t and the spring-loaded clamp 5 On the plate 1 a feed carriage 6 with eccentric gripping bodies 7 (clamps) interacting with material 8 (strip, tape , wire, rod, etc.). The carriage 6 is spring loaded in the feed direction of the material 8 (in the direction of the arrow S) by the spring 9.

On the material supply side 8, there is a brake assembly, made in the form of a housing 10 mounted on the carriage 6 with a working cavity a, an adjusting screw 11 screwed into the housing 10 and entering the cavity O from the side of the material feed 8,

In the cavity O from the side of the plate 1 is placed the rod-plunger 12 (piston) with a central through hole b, spring-loaded spring 13 to the stop 1, fixed to the nap line 1.

An opening S is made in the housing 10, connecting the cavity O with the atmosphere VI. A choke is mounted, made in the form of a screw 15 entering the opening S.

The device works as follows.

When the upper plate 3 moves downward, the material 8 is pressed against the matrix 2 by the clamp 5 and is released from the eccentric clips 7. The drive carriage 6 is cocked with a braking unit by means of a drive (not shown). The rod-plunger 12 under the action of the spring 13 extends from the working cavity Q of the housing 10 to the stop 14 of the bottom plate

one . At the same time, into the working cavity Q of the housing 10 through the air ducts S and & air comes in from the atmosphere

When the top plate 3 is lifted, the carriage 6 fixesc in the position that determines the pitch of material 10 subches. Then material 8 is captured by eccentric clips 7. material 8 is released and carriage 6 moves material 8 under the action of the previously compressed spring 9. In cavity O of housing 10, an increased pressure, since the air does not have time to go through the air duct B, and the other channelJ is blocked by an emphasis 1. An airbag that forms in the cavity O of the housing 10 creates a counter-pressure to the spring 9, ensuring smooth movement of the carriage 6 and liquidate

the impact of the adjusting screw 11 on the stem plunger 12. After the air leaves the cavity, the carriage 6 takes the initial position and the cycle repeats.

The braking speed of the carriage 6 during operation of the device depends on the force of the spring 9 of the carriage return 6, the stroke of the carriage 6, the volume of the working cavity 1 0 of the braking unit housing 10 and the cross-sectional area of the throttle bore 6, which is controlled by the movement of the screw 11 when adjusting the stamp.

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The effect of using the proposed device is to improve feed accuracy and reliability.

FIG. 2

Claims (1)

2. Meshcherin V.T. Sheet stamps-, ka. Atlas of schemes, M., Mechanical Engineering, 1975, p. 197, Fig. 663 (by type). ¢ 54) (57) DEVICE FOR SUBMITTING LENGTH MATERIAL TO THE PROCESSING AREA, containing a feed carriage moving along the base and spring-loaded in the feed direction, a feed step adjustment mechanism, a braking unit located on the feed side and having a housing with a working cavity , a plunger rod with a through axial hole installed in the working cavity parallel to the direction of material supply and interacting with one of the ends with the base, characterized in that, in order to increase the accuracy of the feed and reliably operation, the housing of the braking unit is mounted on the feed carriage, the braking unit is equipped with an adjustable throttle that connects the working cavity to the atmosphere, the plunger rod is spring loaded in the direction of supply of material, and the mechanism for adjusting the feed pitch is made in the form of a screw screwed into the housing with the possibility of interaction with the other end face of the plunger. ''