SU1503948A1 - Device for feeding continuous material into press working area - Google Patents

Abstract

The invention relates to the cold working of metals by pressure, in particular, to devices for feeding long materials to the working area of a press. The purpose of the invention is to increase the technological capabilities of the device. When the slider 24 is moved to the upper position, the one-way stop 23 includes a device for single-piece feeding of long products, which will act on the double-shouldered lever. The wedge part of the latter is raised and released from the engagement, thereby connecting the coupling half. The coupling half is equipped with a pawl mounted with the possibility of longitudinal movement under the action of a spring and interacting with the disc front teeth, driven, through gears, thereby driving the shaft, which transmits rotation to the crank mechanism 9. The crank, acts on the lever 29, through the rod 28, compressing the spring 30, transmits the reciprocating movement of the carriage 3 along the guides 2, providing material feed per step, the magnitude of which is regulated by the stops 37. The cam 10, acting through the beam 32, stops 33 on the clip The braking carriage sponge 6 locks the material in the final position of the carriage 3, in which the material is gripped through the cam 11, the rocker arm 34, the stop 35 and the presser bar 36, and acts on the clamping sponge 5. The device delivers long material with high accuracy on various press equipment. 6 Il.

Description

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Side action 23 includes a device for single-piece feeding of lengthy products, acting on a double-shouldered lever. The wedge part of the latter, it rises and goes out of engagement, thereby connecting the coupling half. The half coupling is equipped with a pawl mounted with the possibility of longitudinally moving under the action of a spring 10 and interacting with the disc front teeth, with a drive, through gears, thereby driving the shaft, which transmits rotation to the crank-shaft mechanism 9, 15, driving the lever 29, through the connecting rod 28, compressing the spring 30, transmits the reciprocating movement of the carriage 3 along the guides 2, ensuring the supply of material to the step, the size of which is controlled by the stops 37. The cam 10 is acting through the rocker arm 32, the stop 3 3 on the clamping jaw 6 of the brake carriage, fixes the material in the final position of the feeding carriage 3, in which the material is gripped through the cam 11, the rocker 34, the stop 35 and the clamping bar 36 and acts on the clamping jaw 5, the device provides a long material c. high precision on various press equipment. 6 Il.

H3o6pefeHHe refers to the cold working of metals by pressure, in particular, to devices for feeding Long Dimensional material into the working area of a press.

The purpose of the invention is to increase the reliability of the device operation by ensuring that the operation of the feeding device is consistent with the operation of the press,

FIG. 1 shows a device for feeding a lengthy material, a general view; in fig. 2 - the same, rear view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 is a view of B in FIG. 3; FIG. 6 is a view of B in FIG. 3

The device comprises a base 1 with guides 2, a feed 3 and a brake 4 carriage with clamping jaws 5 and 6, a drive mechanism 7, made in the form of a shaft 8, at one end of which are mounted a crank mechanism 9, cams 10 and 11, and the other end is the gear 12 and the half coupling 13, the half coupling 13 is rigidly fixed on the shaft 8, and the gear 12 is installed with the possibility of free rotation relative to the shaft 8 and the coupling half 13 under the action of the gear 14 of the individual drive 15.

The gear 12 is rigidly connected with a ratchet disk 16 with end teeth (no more than two). The half coupling 13 is equipped with a pawl 17 installed with the possibility of longitudinal movement under the action of the spring 18 and interacting with the end teeth of the disk 16. At the tail of the pawl 17 there is the protrusion 19 interacting with the wedge part 20 of the two shoulders lever 21, which is hingedly mounted on the base 1 and the wedge part 20 rests on the hub of the coupling half 13 under the action of the spring 22; - one-way stop 23 mounted on the press slider 24, focus 23 is a bracket 25 The regulated with a dog 26 mounted for deflection in one Storo well. and return to

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The crank mechanism 9 consists of a faceplate 27, which provides adjustment of the required feed pitch, a connecting rod 28 connected to the lever 29 through compensating elements (springs) 30, the upper end of the lever 29 is connected to the hinge 31, and the lower one to the movable flow carriage 3 ,

The cam 9 is kinematically connected by the yoke 32 and the adjustable stop 33 with the clamping sponge 6 of the brake carriage 4, and the cam 11 by the rocker 34, the adjustable stop 35 and the clamping strip 36 - with the clamping sponge 5 of the feeding carriage 3,

To limit the movement of the feed carriage in order to provide a height at the ends of the stroke for expansion. the switching time of the clamping jaws provided stops 37.

For damping inertial loads and stable stopping of the shaft 8 of the drive mechanism 7, there is a permanently closed brake 38,

Device for feeding long material works as follows.

The slider of the press 24 is in the upper dead center, the wedge part 20 of the two shoulders lever 21, spring-loaded spring 22, rests on the hub of the coupling half 13 and acts on the protrusion 19 of the pawl 17, which, having overcome the force of the spring 18; disengaged with the tooth of the ratchet disk 16. P1-stern 12 rotates freely under the action of an individual drive 16,

Half coupling 13, axle and shaft 8 under the action of two shoulders lever 21 and brake 38 are at rest, while all parts of the crank mechanism 9 and the feed carriage 3 are in the initial position.

The initial position of the feed carriage 3 is its final position, at which it reached the stop 37, stopped, and parts of the crank-connecting rod mechanism 9 had not yet reached the dead point or were in its zone. The cam 10 still acts on the yoke 32, and, accordingly, through the stop 33 on the clamping sponge 6 of the brake carriage 4, the clamping sponge 6 keeps the material from moving, and the cam 11 also begins to act through the rocker 34, the stop 35 and the clamping bar 36 on a driving sponge 5 of the feeding carriage 3, which grips the material. Left spring 30 under the action of the rod is compressed.

When the press is turned on, the slider 24 moves around, the dog 26 of the single-acting support 23 runs onto the double-arm lever 21 and. Having deviated, it passes it and returns to the initial position. After punching, the slider 24 moves upward, freeing the area for feeding the material. The one-sided action stop dog 26 presses on the free shoulder of the double-arm lever 21, overcoming the force of the spring 22, and turns the double-arm lever 21, the wedge part 20 of which is raised and out of engagement with the projection 19 of the canine tail

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17, The pawl 17, under the action of the spring 18, moves and engages with the ends of the ratchet disk 16 of the rotating gear 12, the Gear 12 and the coupling half 13 are connected. Ball 8 under the action of a rigidly fixed coupling half 13 begins to rotate, the drive of the crankshaft-connecting rod mechanism 9,

The crank of the rotating faceplate 27 begins to act on the connecting rod 28, which, moving to the dead point, finally compresses the spring 30, the lever 29 and connected to its lower end of the feed carriage 3 are fixed, since they are in the extreme position and the movement of the carriage is limited by the stop 37 With further rotation of the faceplate 27, the connecting rod 28 passes the dead point and begins to move to the left, the lever 29 and, accordingly, the feed carriage 3 continues until the spring 30 is unlocked and takes a balanced position. During this time, the clamping sponge 5 of the feed carriage 3 under the action of the cam 11, the rocker arm 34 of the stop 35 and the presser bar 36 finally captures the feed material, and the cam 10, while continuing to rotate, will stop working through the rocker 32 and the stop 33 on the clamping sponge 6 of the brake carriage 4, The clamp-35 on the sponge 6 will release the feed material. Upon further rotation of the faceplate 27, the connecting rod 28 will begin to move the EH) 1 step 29, and accordingly, the feed carriage 3, ensuring the material is fed in a step until the feed carriage 3 reaches the other stop 37, the face plate will not complete 1/2 rotation and at the time of the connecting rod 28 to another dead center during the stand of the supply carriage 3 and the compression of the spring 30 under the action of the cams 10 and 11, the clamping jaws 5 and 6 will switch, the clamping sponge 6 of the brake carriage 4 will capture the material, and the clamping sponge 5 of the supply carriage 3 let go and when gave With the slightest rotation of the faceplate 27 of the connecting rod 28, I will act on the lever 29, will ensure the idling of the feed carriage 3 to its original position,

The material is fed while the press ram is located.

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24 at the top, and idling may occur at the time of punching.

After actuation of the crank mechanism 9, the slide of the press 24 continues to move upwards and the dog 26 ceases to act on the double-arm lever 21 and it returns to its original position under the action of the spring 22. Since the thinking 13 has already turned to some angle, the pawl 17 also left the zone of impact of the wedge part 20. Again, the wedge part 20 will impact the pawl 17 when the shaft 8 and the half coupling 13 are fully rotated. During this time, the crank mechanism 1. 9 will supply the material to the rear This step and return the feed carriage 3 to its original position.

At the end of the complete revolution of the shaft 8, the half-coupling 13 turns so that the dog 17 approaches the wedge part 20 of the two shoulders lever 21 sliding along the hub of the half-coupling 13 and, overcoming the force of the spring 18, engages the wedge part 20, i.e. . returns to the original position. The second end of the pawl 17 will be released from the engagement with the end tooth of the ratchet disk 16, ensuring the disengagement of the coupling half 13 and gear 12, the crank mechanism 9 stops in the initial position. Then the cycle repeats. I

The invention will ensure the supply of lengthy material with high accuracy on various press equipment, regardless of its design features.

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Claims (1)

Invention Formula A device for feeding a lengthy material into the working area of the press, comprising a base, a fixed clamp, a movable clamp mounted on a feed carriage, a drive for moving the clamps, made in the form of a camshaft, a drive for moving the carriage, made in the form of a curvature throat mechanism, one end of which a movable carriage and another with a camshaft, and means for rotating the camshaft, characterized in that, in order to increase reliability, the operation of the device by ensuring the coordination of work feeding device with a press operation, it is equipped with a stop for one-sided action fixed to the press slide, and the means for rotating the camshaft is made in the form of a coupling half mounted on the basis of an individual drive with a bevel gear mounted freely on the shaft of the camshaft, fixed on the shaft of the camshaft, ratchet disc with end teeth, rigidly connected with additional gear, spring-loaded dog mounted on the half-coupling with the possibility of interaction with the end faces mi tooth disc, two shoulders lever mounted on the base , with the possibility of interaction of one shoulder with the emphasis of a unilateral action, and the other through a wedge part with a pawl, and a braking element mounted on the base with  possibility of interaction with a cam shaft. Л1г.З l In id 13 Fie.6 Editor V.Kovtun Compiled by V. Balashov Tehred A. Kravchuk Order 5185/13 Circulation 693 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Video 21 17 FIG 5 21 17 Proofreader V.Kabatsiy Subscription