SU1216027A1 - Device for feeding strip and tape material to press - Google Patents

Description

one

The invention relates to the processing of metals by pressure and can be used to feed strip and strip material to the press.

The purpose of the invention is to improve the accuracy of the feed pitch by adjusting it without stopping the press.

FIG. 1 shows a device for feeding a strip and tape material to a press; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The device for feeding the strip and tape material to the press contains feed 1 and pressure rolls 2. The feed roller 1 is mounted on a fixed axis 3 and is connected to the driving cam 4 of the main shaft of the press through a lever 5 rigidly connected to the roller, a lever 6 swinging relative to the support 7, a lever 8 whose length is changed by means of an adjusting screw 9 and a nut 10 a pusher 11 rigidly connected to the lever 8 and the roller 12. The nip roll 2 is mounted on the double-arm lever 13 swinging relative to the support 14 and spring loaded 15. The rocking motion of the pressure roll is also driven from the main shaft of the press through the cam 16 and the roller 17 On the axis 3 of the feed roll there is a disk 18 with a groove 19 in the shape of an Archimedes spiral. The disk 18 can be locked with the help of a nut 20. A helical groove 19 enters a rusk 21 mounted on the lever 5 as on a guide. The material 22 is mounted in the guides 23.

The device for feeding the strip and tape material to the press works as follows.

216027

2

The pitch feed of material 22 to the press is carried out by the feed 1 and pressure 2 rolls. The feed roller 1 makes a reciprocating rotational motion relative to the fixed axis 3, and its working stroke is carried out when the material 22 is pressed by the pressure roll 2 by means of a spring 15 acting on a double-arm swing arm 13. after pressing the roll with the material. The operation of the nip roll is controlled by a cam 16 mounted on the main shaft of the press. Rotation to roll 1 is transmitted

, 5 from cam 4 through roller 12, levers 8, 6 and 5. Adjusting the feed pitch is done by changing the length of the lever 8 by rotating the adjusting screw 9 relative to the nut 10 while the press is stopped. The feed pitch can be adjusted at the press stroke by changing the radius of the lever 5, which is achieved by turning the disk 18, displacing the crackers 21 along the spiral of the groove 19 and the guide lever 5 In the desired position, the disk 18 is fixed on the axis 3 using the lock nut 20.

The profiles and the relative position of the cams are selected in such a way that the change in the direction of rotation of the feed roll is accompanied by a period of high roll, at which time the pressure roll is pressed and released, which also improves the accuracy of the feed device. The effect of using the device is to improve the accuracy of the feed step and to reduce the time lost in adjusting the step due to its implementation without stopping the press.

 (loer)

r1

FIG. 2

Compiled by E. Svistunov

Order 9 B1O Techred I.Verescorrector M. Pojo

Order 946/20 Circulation 597 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab ,, d 4/5

Branch PPP "Patent, Uzhgorod, st. Project 4

FIG. H

Claims (2)

1. DEVICE FOR SUBMITTING STRIP AND TAPE MATERIAL TO THE PRESS, containing a pressure and feed rolls, the last of which has a reciprocating drive through a system of feed and two-arm levers from the main cam FIG. 1 of the press shaft with the ability to adjust the feed pitch by changing the length of one of the two shoulders levers, characterized in that, in order to improve the accuracy of the feed pitch a spiral-shaped groove roll with a cracker installed with the possibility of interaction with one side of the feed lever and the other with a spiral groove, the disk being installed with the possibility of its rotation and fixing relative to the axis feed roll. 2. The device according to π. 1, characterized in that the cam profile of the feed roll drive has cylindrical sections for g roll stand. SU „„ 1216027>