SU1579654A1 - Installation for cutting and placing sheet blanks into a stack - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to an apparatus for cutting sheet material, and can be used for cutting dimensional blanks from sheet material and their stapling. The purpose of the invention is to simplify the design and increase reliability in operation. The installation comprises a cutting device in the form of a movable 6 and a fixed 7 knives, which are attached to the longitudinal beams, which interact with each other, forming a cutting pair, and a device for stapling blanks. The latter is rigidly fixed on the longitudinal beam of the movable knife and is made in the form of a bearing bracket 10, on which a double-arm swivel arm 11 is mounted with its turn stop. On one shoulder of the two shoulders, the support roller is loosely fixed to interact with the cut sheet, and the other shoulder of the two shoulders is spring-loaded and comes into contact with the limiter of its rotation. 3 il.

Description

one

(21) 4420278 / 23-27

(22) 05.05.88

(46) 07.23.90. Bul Number 27

(71) Design Bureau of the Trust "Santekhdetal

(72) M. E. Moskalenko and B. A. Blumencrantz

(53) 621.967 (088.8)

(56) USSR Copyright Certificate No. 733889, cl. On 23 L 15/06, 1977.

(54) INSTALLATION FOR CUTTING AND LAYING OF SHEET PLANTS IN STOP

(57) The invention relates to the processing of metals by pressure, in particular to a device for cutting sheet material, and can be used to cut dimensional blanks from sheet material and their stapling. The purpose of the invention is to simplify the design and increase reliability in operation. The installation comprises a cutting device in the form of a movable 6 and a fixed 7 knives, which are attached to the longitudinal beams and 7 are stationary, forming a cutting pair, and a device for building up blanks. The latter is rigidly fixed on the longitudinal beam of the movable knife and is made in the form of a bearing bracket 10, on which a double-arm swivel arm 11 is mounted with its turn stop. On one shoulder of the two shoulders, the support roller is loosely fixed to interact with the cut sheet, and the other shoulder of the two shoulders is spring-loaded and comes into contact with the limiter of its rotation. 3 il.

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The invention relates to the processing of metals by pressure and can be used for cutting dimensional blanks from sheet material and their stapling.

The aim of the invention is to simplify the design and increase reliability.

FIG. 1 shows the installation, general view; in fig. 2 — node I in FIG. one; in fig. 3 - installation, top view.

A plant for cutting and stacking sheet blanks in a stack contains a driving carriage 1 mounted on rail guides 2, on which a lifting-lowering table 3 is fixed and a device for stacking blanks rigidly mounted on a longitudinal blade bar 5 of a movable knife 6 installed in guides 4 forming with a fixed knife 7 cutting pair. The longitudinal blade 5 with a movable knife 6 has the ability to move vertically from the power pneumatic cylinder 8, which is rigidly attached to the frame 9.

The device for stacking the blanks is made in the form of a bracket 10 rigidly attached to the longitudinal blade 5 on which the pivoting arm 11 is mounted, while on one shoulder of the latter the supporting roller 12 is freely mounted to interact with the cut sheet, and the other arm of the pivoting arm 11 is spring-loaded spring 13 The other end of the spring 13 is attached to the rotation stop of the lever 11, made in the form of a cantilever stop 14 mounted by means of a bolted connection 15 on the frame 9.

Limit switches 16 and 17, which control the operation of the installation, are also fixed on frame 9, and 18 are rigidly fixed on rotary lever 11 to interact with limit switches 16 and 17. To move the lifting and lowering table 3, an electromechanical actuator 19 is provided. from the electric motor with a belt drive, reducing gear and screw pair (not shown).

The installation works as follows.

When the scissors is running, i.e. when moving the cutter bar 5 downwards, the lever 11 is rotated counterclockwise under the influence of the coil spring 13 and the cantilever stop 14 of the rotation limiter, while the flag 18 also moves counterclockwise, successive passage limit switches 16 and 17, the signals of which do not register, since the lower limit switch of the longitudinal blade bar 5 (not shown) does not operate.

Upon further movement of the longitudinal blade 5 during the cutting process, the support roller 12 of the lever 11 rests on the cut sheet, bending it down until it is completely trimmed due to the force of the spring 13, while the support roller 12 and the flag 18 are in the leftmost position, provided The stack of foot on the lifting and lowering table 3 has not reached a predetermined level set by the position of the limit switch 16 (Fig. 2, dotted line).

In the event that the stack of blanks has reached a predetermined level, the support roller 12 abuts against the accumulated foot, the resulting force

on the support roller 12 exceeds the force of the spring 13 and the lever 11 rotates clockwise, the flag 18 passes the limit switch 16. The coincidence of the signals of the limit switch 16 and the limit switch of the lower position of the longitudinal

0 knife beam 5 (not shown) prohibits raising the longitudinal knife beam 5 and permission to lower the lifting and lowering table 3. In the process of lowering the latter with a fixed longitudinal knife beam

| - 5 the lever 11 rotates counterclockwise, the flag 18 moves to the left, i.e. also counterclockwise, the passage limit switch 17.

The coincidence of the signals of the limit switch 17 and the lower limit switch

The 0 position (not shown) of the longitudinal blade 5 prohibits further lowering of the lifting and lowering table 3 and the lifting and longitudinal cutting edge 5. After the surface of the stackable stack of sheet blanks reaches its maximum level, the lowering table 3 performs the next lowering, and so on, until it is lowered to its lower position. Then, the drive carriage 1 with a fully loaded stack of sheet blanks is brought to the unloading position. Then the cycle of operation is repeated.

Claims (1)

An apparatus for cutting and stacking sheet blanks in a foot, comprising a frame, an emphasis, a cutting device in the form of mutually operating fixed and movable knives and a device for stacking the blanks, characterized in that. that, in order to simplify the design and increase reliability, the device for building the blanks is made in the form of a bracket rigidly mounted on a movable knife and a lever with a support roller on one shoulder hinged by the middle part on the bracket, while the free arm of the lever is spring-loaded, and the emphasis is rigidly mounted on the frame with the ability to interact with 0 0 five the free shoulder of the said lever.