SU1523231A1 - Arrangement for feeding strip and band material to working zone of press - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used to feed a strip or strip material into the working area of a press. The purpose of the invention is to expand the technological capabilities of the device by moving the carriage to a predetermined step and improving the performance of the feeding process. The material is fed by rollers driven by a rotational drive through a rack-and-pinion gear. The feed rolls are mounted on a carriage mounted on the base with the possibility of moving from the drive the movement perpendicular to the feed axis. The step of movement is determined by the mechanism of a predetermined step movement of the carriage, which contains a double-arm lever, a rotation drive and a shaft with step supports. The double-arm lever is mounted on the base with the possibility of rotation in a plane perpendicular to the shaft, mixing parallel to its longitudinal axis and interacting with the step stops. The double-arm lever is connected to the rotational drive and interacts with the limit switches located on either side of it. 5 il.

Description

The invention relates to the field of metal forming and can be used to feed a strip or strip material into a working area of a press.

The purpose of the invention is the expansion of technological capabilities by ensuring that the carriage is mixed for a given step and increase the performance of the feeding process.

FIG. 1 shows a device for feeding strip and tape material into the working area of a press; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a view B in FIG. 2; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a section of YYD in FIG. I.

The device comprises a base 1 with horizontal directions of their 2, along which the feed carriage 3 moves,

bearing vertical direction 4. Slider 5 is movably mounted on guide 4 with axles 6, on which the pressure feed rolls 7 are mounted. The upper end of guide 4 is threaded on which the nut 8 is screwed. 4, a spring 9 is installed, located between the nut 8 and the creep 5. The drive shafts 10 are mounted in the carriage 3, carrying the drive feed rolls 11 and the overrunning clutches 12. The overrunning clutches 12 contain sprockets 13 fixed on the shafts 10 and the sleeves 14, associated with asterisks 13 via rollers 15. On the clips 14 Lena or formed integrally with them a gear wheel 16, incoming into engagement with the rack 17.

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A toothed rack 17 is pivotally connected to the rod 18 of the piston 19 mounted in the power cylinder 20.

The feed pitch is determined by the stop 21, which interacts with the end face of the toothed rack 17 and the limit switch 22 associated with a press drive (not shown). The power cylinder 20, the gear rack 17 and the stop 21 with the limit switch 22 are mounted on the base 1. In the carriage 3 by means of the axles 23 brake brake dogs 24 are mounted, spring-loaded springs 25 to the clips 14 of the overrunning clutches 12.

On the basis of 1 mounted power q.indr 26, the piston 27 of which is fixed to the rod 28.

The rod 28 is pivotally connected to the feed carriage 3. On the carriage 3, parallel to the rollers 7 and the shafts 10, a program shaft 29 is mounted with the possibility of adjusting movement along its axis. For this, the end of the program shaft-29 is made in the form of a spindle 30 and a spindle nut 31, screwed on the spindle screw 30 and fixed on the feeding carriage 3.

On the programming shaft 29, one after the other, along its longitudinal axis, one step after another is rigidly fixed step supports 32, which are located one from another at a fixed distance, and thrust disks 33.

On base 1, by means of axis 34, a double-arm lever 35 is perpendicularly attached to the program shaft 29. The double-arm lever 35 is spring-loaded by a spring 36 to the program shaft 29 and is connected to an electromagnet 37. The electromagnet 37 is connected to a three-axis press (not shown). The double-shouldered lever 35 is rotatably mounted in the vertical direction and displaced horizontally. On axis 34, on both sides of the two shoulders lever 35, pushers 38 and 39 are mounted, lever 35 is spring-loaded with springs 40 and 41. On the basis, limit switches 42 and 43, which interact with pushrods 39 and 38, respectively, and limit switches 44 and 45, which interact with end of the lever 35.

The device works as follows.

The material feed pitch is controlled by the stop 21. The power cylinder 20 is turned on, the rod 18 of which drives the sleeves 14 through the rack 17 and gear 16. The sleeves 14 drive the shafts 10 with feed rollers 11 through the rollers 15 and sprockets 13.

Springs tighten rolls 7 and li; and the material is moved to the feed step in the press working area (not shown).

The clamping force of the rolls 7 to the rolls 11 is adjusted by nuts 8.

The force cylinder 26 moves the carriage 3 along the guide 2. This turns on the electromagnet 37, which turns

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the lever 35 around the axis 34. The lever 35 leaves the interaction with the shaft 29. When the extreme position of the carriage 3 is reached, the electromagnet 37 and the power cylinder 26 are switched off.

When this lever 35 through the pusher 38 acts on the limit switch 43, which gives the signal to turn on the press (not shown). After the end of the working stroke, the press sends a signal to turn on the electromagnet 37 and turn off the power cylinder 26. The lever 36 leaves the interaction with the limit switch 43.

The limit switch 43 gives a signal to turn off the electromagnet 37. The lever 35, under the action of the spring 36, rotates around the axis 34 and its end interacts with the shaft 29. The power cylinder 26 is turned on, which moves the carriage along the guide 2. When the carriage reaches the end position 3, limit switches 45 and 43, which give the signal to turn on the press. When signals are received from the limit switches 45, and 22, the carriage 3 is reversibly moved. When the lever 35 interacts with the limit switches 44 and 42, the rolls are driven. After the operation of the limit switch 22 is triggered, a signal is applied to the reverse movement of the carriage 3. Then the cycle is repeated.

Claims (1)

Invention Formula A device for feeding a strip or tape material into the working area of the press, comprising a carriage mounted on a base that can be moved perpendicular to the material feed axis and associated with a motion drive, feed rolls mounted on the carriage and coupled to a rotation drive through a gear rack , and limit switches, characterized in that, in order to expand technological capabilities by ensuring that the carriage moves a predetermined step and improves the performance of the feeding process, it equipped with a mechanism for a predetermined step movement of the carriage, made in the form of a program shaft mounted on a carriage perpendicular to the material feed axis with the possibility of adjusting movement, step stops fixed along the program shaft at a given distance from one another, two arms the possibility of interaction with the step stops, as well as with the possibility of rotation to a plane, perpendicular to the program shaft, and movement in a plane parallel to one, and a two-arm swing drive mounted on the base, while the drives of rotation and movement are made in the form of power cylinders; one of the limit switches is mounted on the carriage with the possibility of interaction with the rail - rack and pinion gear, and other limit switches are mounted on the base on both sides of the two shoulders with the ability to interact with it. ten about b h g X 77777, 5 V 28 --21  sixteen J5 ag.g B id 23 25 Yu iP