SU1207582A1 - Arrangement for feeding band and strip material to the press - Google Patents

Description

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The invention relates more to the field of cold metal forming and can be used to feed the strip and tape material to a press.

The purpose of the invention is to increase the reliability of work and the accuracy of the feed.

FIG. 1 is a diagram of a device for feeding a strip and tape material to a press; in fig. 2 - feed pitch adjustment mechanism.

The device for feeding the strip and belt material to the press consists of a roller feed mechanism I, a braking mechanism 2 and a control mechanism 3.,

The feed mechanism 1 comprises an upper stationary drive roller 4 and a lower movable roller 5, reinforced on the rod b of the hydraulic cylinder 7 of the power cylinder, the piston 8 of which is spring-loaded with a spring 9.

The braking mechanism 2 consists of a clamping shoe 10 mounted on the rod 11 of the hydraulic cylinder 12 of the power cylinder, the piston 13 of which is spring-loaded spring 14.

The control mechanism 3 is mounted directly on the press and is equipped with a crank 15, pivotally connected by means of a connecting rod 16, cup 17, spring 18 with rod 19 of hydraulic cylinder 20 (metering cylinder), and rod 19 is connected to the piston 21. under the action of the spring stroke is carried out by an adjusting nut 22. The crank 15 is fixed on the drive eccentric shaft 23 of the press 24. The hydraulic cylinders 7, 12, 20 are connected by a pipeline 25.

The device works as follows.

In the initial position (Fig. 4) of the feed, the tape is filled between the feed rolls 4 and 5, with the roll 5 under the action of the spring 9 through the piston 8 and the stem b presses the tape to continuously rotating

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 drive wheel 4, pressure shoe 10

under the action of the spring 14 is raised to its upper position, the crank 15 finds

in the avs zone, the piston 21 of the cylinder 5 is in the upper position, and the working medium from the cylinders 7 and 12 under the action of the springs 9 and 14 is displaced along Pipeline 25 into the piston cavity of the cylinder 20 (metering cylinder).

Under the action of friction forces between the rollers 4 and 5 and the material, it is fed into the working area of the press. The magnitude of the material feed step is determined by the magnitude of the trajectory.

RIA AVS Crank 15, which

depends on the size of the gap h between the nut 22 and the cup 17. An increase in the gap h leads to an increase in the value of the ABS trajectory and, consequently, to an increase in the feed pitch.

When the crank moves from point in to point c, the spring 18 is compressed and the set clearance between the cup .17 and the nut 22 is selected. Starting from point c, the cup 17 interacts with the nut 22 and moves the rod 19 and the piston 21 to the lower position , while the working medium from the piston cavity of the cylinder 20 is displaced through the pipeline into the corresponding cavities of the shchindriv 7 and 12 and overcomes the force of the springs 9 and 14, removing the roll 5 down and fixing the material by the pressure shoe 10. Through the specified interaction zmov on the trajectory meat occurs stopping and fixing the material and its forging treatment.

When the crank reaches a point between the cup 17 and the nut 22. A gap h is formed, which allows the piston 21 to move upward under the action of the working medium displaced along the pipeline 25 from the respective cavities of the cylinders 7 and 12 by springs 9 and 14. Then the cycle repeats.

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Circulation 783

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Branch ShSh Patent, Uzhgorod, Proektna St., 4

Claims (1)

DEVICE FOR SUBMITTING STRIP AND TAPE MATERIAL TO THE PRESS, having a drive shaft, comprising a material feeding mechanism having a fixed roll and. a movable roll driven by a power cylinder, an additional power cylinder having a piston with a rod, and a control mechanism made in the form of a metering cylinder having a piston with a rod, a crank mounted on the drive shaft, and a connecting rod connecting the crank to the rod of the metering cylinder, characterized in that, in order to increase operational reliability by increasing the accuracy of the feed, the power cylinders are connected to the metering cylinder, the device is equipped with a braking mechanism for the material, made in the form of a pressure shoe mounted on the rod, an additional power cylinder, and a feed pitch adjustment mechanism made in the form of a cup mounted on the metering cylinder rod with g moveable and pivotally connected to the connecting rod, a nut screwed onto the metering cylinder rod to interact with the glass, and a spring located between the glass and the stem of the metering cylinder. ' SU .. „1207582 1207582 ^{2 to the} drive roll 4, the pressure shoe 10 is raised to the upper position by the action of the spring 14, the crank 15 is in the ABC zone, the piston 21 of the cylinder 20 is in the upper position, and the working medium from the cylinders 7 and 12 is displaced by the springs 9 and 14 through the pipeline 25 into the piston cavity of cylinder 20 (metering cylinder). Under the action of friction between the rollers 4 and 5 and the material