SU1759510A1 - Apparatus for removing waste from working zone of press - Google Patents

Abstract

Use: for removing waste from the press working area. SUMMARY OF THE INVENTION: The device comprises a driven carriage mounted on guide bases for reciprocating movement, a fixed clamping jaw mounted on the carriage a movable clamping sponge, pivotally mounted on the slide carriage with a fixed clamping sponge, an assembly clamping jaws placed in the carriage with the ability to interact with the movable clamping sponge roller, while the node itself is made in the form of fixedly mounted on the carriage e, on both sides with respect to the side surfaces of the clamping jaws, two strips with longitudinal guide grooves, in which the end parts of the roller are placed, 5 Il.

Description

This invention relates to mechanical engineering, in particular, to tooling for cold sheet forming.

A known stamp for cutting, containing a fixed punch below, a movable matrix interacting with it, and two side knives for cutting waste (GOST 18735-80 Rectangular knives for cutting waste).

A significant drawback of the known construction is the need to use manual waste disposal in the case of cutting a rectangular piece, since the waste remains strung on the punch even after cutting it in two.

It is also known a device for removing parts from the working area of a press, described in ed. St. USSR number 755387. class. B 21 D 45/02.

The device contains a gripping body mounted on the base with a fixed jaw mounted on the base and a lower jaw mounted on the lower jaw mounted on the same axis, as well as a drive link in the form of a fork with a roller and a limiting stop. At the end of the stroke, the lower jaw rotates 90 °.

The disadvantage of this design is the need to provide special grooves in the dies for moving the tong and gripping jaws.

The prototype of the claimed device is a well-known device of a mechanical arm of the horizontal type with a ball lock grip (Sagatel N.S. Safety and mechanization in the cold-stamping production. M .: Mashinostroenie. 1973, p.116, Fig.69) .

The device contains the upper fixed and lower pivotally movable

and

A: SL

about

relative to it, clamping jaws connected to a slider, which through the pneumatic cylinder rod has the ability to move the rod relative to this cylinder.

With the help of a ball retainer consisting of three balls, a spring and nuts located on the rod, the movable rod moves along with the slider for most of the stroke of the cylinder, the smaller part stands and the slider moves relative to it.

A disadvantage of the known device is unreliability in operation.

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

The goal is achieved by the fact that a transverse groove with a groove located at its bottom in which the roller is located is made on the surface of the movable sponge adjacent to the fixed sponge.

Fig, 1 and 2 shows the proposed device.

The waste disposal device comprises a wedge 1, a guide 2, a bracket 3, stops 4, a slider 5, a fixed clamping jaw 6, a movable clamping jaw 7, a hinge 8, a roll-in roller 9, strips 10 and a spring 11.

The waste disposal device is driven by a wedge 1, mounted on the upper movable plate of the stamp. Along the guide 2, which is attached to the bottom of the stamp on the bracket 3, the slider 5 with the clamping jaws moves to the stops 4.

The fixed clamping jaw 6 is a continuation of the slider and performs only reciprocating movements.

The movable clamping jaw 7 can rotate through a certain angle, i.e. it is connected by a hinge 8 with a slider and has a transverse groove A with a groove located at its bottom (Fig. 3), along which the rolling roller 9 moves.

On the sides of the lips there are strips 10 with longitudinal grooves B, limiting the motion of the roller.

With the stamp opened, the device slider 5 is pressed to the stops 4 by the spring 11, and the roller is in position I (Fig. 3).

In this position, the sponge roller is opened to grip the waste.

When the stamp moves downward, the wedge 1 enters the groove B, which is located on the slider 5, and moves it backwards. At the very beginning of the movement, the roller takes position II (Fig. 4), at which the jaws clamp the waste. The clamping force is provided by the spring 12.

Claims (1)

At the end of the movement, the roller takes position III (Fig. 5) and the jaws open. Claims of Invention A device for removing waste from a working area of a press, comprising a carriage mounted on guide bases with a possibility of reciprocating movement of a carriage with a drive, a fixed clamping sponge, hinged on a carriage with a possibility mating with a fixed clamping sponge, a junction assembly of the clamping jaws with a roller disposed in the carriage with the possibility of interaction with a movable clamping sponge, characterized by that, in order to increase reliability, the junction of two clamping jaws with each other is made in the form of fixedly mounted on the carriage on both sides relative to the side surfaces of the clamping jaws, two strips with longitudinal guide grooves, in which the end parts of the roller are placed a transverse groove made of a movable sponge surface mated with a fixed sponge there is a groove located at its bottom, in which the middle part of the said roller is placed, while the clamping jaws are spring-loaded one to the other, and the drive for moving the carriage is made in the form of a wedge pair, one element of which is rigidly connected to the press slider and the other carriage, which in turn is spring-loaded to the base. L -iq.f / + i H / 0W.2 Editor FIG. five Compiled by V.Zimin Tehred M. Morgental .f / + i H + i + s Corrector m.Tkach