SU713640A1 - Appapatus for feeding workpieces into press - Google Patents

Description

The invention relates to the field of metal forming and can be used mainly for mechanization of the supply of billets in the press equipment.

A device is known for feeding blanks to a press, comprising a retractable sub-die plate mounted on a spring-loaded guide of the press bed, connected through a driven link, doubling the stroke with the cylinder rod of its movement [!].

In the known device, the driven unit is made rack and pinion. As a result of this, it is practically unloaded from the pressing force, which reduces its reliability.

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

This goal is achieved due to the fact that the driven link is made in the form of an asterisk fixed on the rod of the hydraulic cylinder, which engages with two opposed segments of chains, one of which is tensioned on the inner guard of the die plate, and the other is fixed on the press table.

In FIG. 1 shows a device, a vertical section; in FIG. 2 is a section AA of FIG. 1.

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The device contains mounted on the spring-loaded rails 1 of the table 2 press 3 and mounted on the rollers 4 extendable punch plate

5. On the lower plane of the plate 5, a segment of the sleeve-roller chain 6 is tensioned, which engages with an asterisk 7> fixed with the possibility of rotation on the rod 8 of the hydraulic cylinder 9 for reciprocating movement of the die plate 5. On the other hand, the sprocket 7 engages with a chain segment 10 mounted on the table 2 press 3.

The device operates as follows.

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713 640 4

When the operating rod during .8 ^x hydro- the cylinders 9 Bolster plate 5 at double speed relative to the rod 8 we will mix on guides 1 in the workspace press 3. 5 included chaetsya press molding preform and implemented. In this case, the sub-stamp plate 5, recessing the guides 1, is located on the press table 2, the vertical movement of the sub-stamp plate is compensated by the deflection of the section 6, which unloads the drive from the pressing force and increases the reliability / operation of the device as a whole. At the end of the pressing, the iodine-spring rails 1 lift the sub-die plate 5 above the rod 2, which is then rolled out by the hydraulic cylinder 9 to its original position. Next, the nickel is repeated.

Claims (1)

SUMMARY OF THE INVENTION A device for feeding blanks to a press, comprising a retractable sub-die plate mounted on a spring-loaded guide of the press bed, connected to the rod of the drive hydraulic cylinder through a driven member, doubling its stroke, characterized in that, with the purpose of increasing the durability of the device, the driven member is made into in the form of an asterisk fixed for rotation on the hydraulic cylinder rod, which engages with two opposite segments of slots, one of which is tensioned on the inside dshtampovoy plate, and the other - is attached to the press frame.