SU1159697A1 - Apparatus for feeding piece work from magazine - Google Patents

Abstract

A DEVICE FOR SUBMISSION OF STORES FROM A STORE, containing a rack mounted on the base for moving in a vertical direction, a rack moving mechanism having a shaft bearing a gear connected to the rack, a ratchet wheel, a brake dog hinged on the base with the possibility of interlocking with the ratchet wheel, the drive lever carrying the lead dog, installed with the possibility of interacting with the ratchet wheel, and the drive engaging it with the aim of raising and process performance and reliability of operation, the gear is loosely fitted on the shaft, the device is provided with a pulley-podumuftoy associated with the drive lever and the switching clutch associated with the gear and shaft drive mechanisms and lifting pawls, vypolnentshi as electromagnets.

Description

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co 1 The invention relates to cold metal forming and can be used to feed piece blanks from a magazine. The purpose of the invention is to improve the performance of the feed process and the reliability of operation. The drawing shows devices for feeding piece blanks from the store. The device consists of a through shaft 1 on which the ratchet wheel 2 is rigidly fixed, the coupling half 3 is mounted on a freely rotating shaft 4 which does not have the possibility of axial movement. The gear 5 is rigidly fixed on the shaft 4, interacting with the rack 6, pressed up by the adjustable rollers 7, and the pulley-coupling half 8 is installed with the possibility of free rotation and the switching clutch 9 with the possibility of free movement along the tongue 10 in the axial direction. the coupling half is connected to the actuator 11. Between the pulley by the coupling half 8 and the switching clutch 9, a switch 12 is installed connected to the electromagnet 13 and the spring 14. When connecting the pulley of the coupling half 8 to the clutch 9 switching by means of the switch 12 and the electromagnet 13 echivaets rotation of the pinion 5, the drive boiling zu chatuyu reyku6 during its feeding speed at the start up operation prior to contact with the workpieces (not shown). When the switching clutch 9 is connected by means of the switch 12 and the spring 14. With the half coupling 3, the through shaft 1 and, accordingly, the gear 5 from the ratchet wheel 2 are rotated. The lath 6 is mounted on the damping stop 15 between the guides 16 in the vertical position. The stop 15 is installed with the possibility of interaction with the sensor 17 of turning the table 18 on with cassettes 19 (magazines). The swivel one hundred 18 is located above the rail 6 in such a way that the cartridge 19 with blanks is in the working position strictly symmetrically above the rail 6. The ratchet wheel 2 interacts with the pawl 20 (leading), mounted on one end of the leash 21, loosely fitted on the shaft 1. The second end of the driver 21 is installed in the groove of the copier 22 connected to the 72 output shaft of the gearbox 23 of the drive 11. The roller 24 perpendicular to its side surface is fixed to the roller 24 connected to the spring 25 and mounted over the arc 26 (with the possibility of rolling it). Arc 26 with one end rigidly mounted on the device (not shown). The second end of the arc 26 is connected to the spring 27 and the electromagnet 28. The ratchet wheel 2 also interacts with a safety brake pawl 29 equipped with an AOR pin mounted on the device body. Pin 30 interacts with the electromagnet 31 and the spring 32. The device operates as follows. In the initial state of the gear rack 6 is in its lowest position, and the cartridge 19 with blanks is above it. When the drive 11 is turned on, the electromagnet 13 connects through the switch 12 a changeover clutch 9 to the half-clutch pulley 8. At the same time, the gear 5 starts to rotate, lifting the gear rack 6 with it to engage the latter with the surface of the workpieces. At this time, the shaft 4 rotates, and the through shaft 1 is stationary. After the rail 6 contacts the workpieces, a sensor (not shown) gives the command to turn off the electromagnet 13 ,. and the spring 14 switches the switch 12, which connects the switching clutch 9 with the coupling half 3, and the shafts 1 and 4 - between the keys 10. At the same time electromagnets 28 and 31 are turned on. Electromagnet-. The yarn 28 lowers the arc 26 and the roller 24, and the spring 25 presses the nose of the dog 20 to the tooth of the ratchet wheel 2. At this time, the electromagnet 31 pulls in the pin 30, which moves the nose of the safety dog 29 until it touches the tooth of the ratchet 2. After the dogs 20 are hooked and 29 with a ratchet wheel 2, the leash 21, driven by the copier 22 in the reciprocating swinging movement through the dog 20, turns the ratchet wheel 2, which, in turn, drives the shaft 1 to rotate. Through the coupling half 3, the clutch 9 and the key 10 rotates

shaft 4 with gear 5, which moves the rack 6 by one step. The step size equal to the thickness of the workpiece is determined by the length of the arc of movement of the ratchet wheel 2 by means of a pawl 20 at the time of its working movement (movement in one direction). The safety dog 29 at the same time accompanies the ratchet gear teeth 2.

During the reverse movement (rolling motion) of the leash 21, the pawl 20 disengages from the ratchet wheel 2 and is pulled back, and the safety dog 29 at this moment fixes the position of the ratchet wheel from npoBopota back. The ratchet wheel 2 at this moment still, respectively, the rail 6 does not move.

At this moment, the workpiece level gauge (not shown) gives the command to turn off the electromagnet 28, releasing the arc 26, and the spring 27 lifts it and the roller 24, removing the nose of the dog 20 from possible engagement with the xpanoiBbiM wheel 2.

The leash 21 reciprocates with the raised pawl until the workpiece is removed from the cassette 19 and the workpiece level sensor does not give a command to turn on the electromagnet

28, which lowers the arc 26 with the roller 24, and the spring 25 W does not have the nose of the pawl 20 engaged with the teeth of the ratchet wheel 2. Then the cycle repeats until all the workpieces from the cassette 19 are stitched. Jari with this rack and pinion 6 reaches the extreme upper position, after which it triggers; there is an upper position sensor (not shown), which gives a command to turn off the drive 11, electromagnets 28 and 31, raising the nozzles of the pawls 20 and 29, disengaged from the ratchet wheel 2,

Being in a free state, the gear rail 6 rolls on gear 5 down under its own weight until it interacts with the stop 15. The speed of the fall of the rail 6 is adjusted by the rollers 7, which determine the pressing force of the rail 6 to the gear 5.

Then, the rotation sensor 17 of the table 18 is turned on, moving the next cassette 19c to the work area. After that, the whole cycle continues.

The effect of using the invention is to improve the performance of the feeding process and the reliability of operation.

Claims (1)

DEVICE FOR SUBMITTING PIECES OF STORES FROM THE STORE containing a gear rack mounted on the base with a possibility of movement in the vertical direction, a gear rack movement mechanism having a shaft bearing a gear connected to the gear rack, a ratchet wheel, a brake dog pivotally mounted on the base with the possibility of interactions with a ratchet wheel, a drive lever carrying a guide dog installed with the possibility of interacting with a ratchet wheel, and an actuator that is designed to increase In terms of process performance and operational reliability, the gear is freely mounted on the shaft, the device is equipped with a half-clutch pulley connected to the drive and lever with a shift clutch connected to the gear, shaft and gear and mechanisms for raising the dogs, made in the form of electromagnets. ate 1159697 2