SU420371A1 - DEVICE FOR SPRING GUIDE pfi |. {F | PP- ,, ^ • ^ itfi, ift'tifl - Google Patents

Description

one

The invention relates to equipment for the manufacture of rods.

A device for producing wire springs is known, which comprises a wire feeder roller mechanism, a coiling mechanism and a cutting mechanism installed at the station and kinematically interconnected.

However, in the known device is relatively low performance and relatively low accuracy of the geometrical parameters of the products, due to the large error along the length of the sweep springs.

In order to increase the performance and accuracy of the parameters of the manufactured springs, the movement drive of the feed mechanism is designed as a guide carriage installed in the frame provided in the frame, carrying a roller feed mechanism and interacting with a cam gear mounted on the frame connected to an axis fixed in a bed, a Novorotny two-shouldered lever, on one shoulder of which a toothed sector is installed, and on the second - a roller in contact with one placed in a rigidly mounted bed cup spring acting coaxially mounted on a glass blank, and the cutting drive mechanism and a drive mechanism

feeds are interconnected by gear.

FIG. 1 given the proposed device, front view; in fig. 2 - section along the AA

FIG. I.

All executive bodies of the device are located on the frame 1, mounted on the pedestal 2, which serves as the electrical cabinet. From the motor 3, the movement is carried out in two

The first is through a V-belt transmission 4 to the continuous feed mechanism consisting of a gearbox 5 and feed rollers 6. The second is through a V-belt transmission 7 to a variator 8, which serves to continuously adjust the rotation speed of the camshaft 9.

Mounted on the output shaft of the variator 8, the brush gear 10 transmits the rotation of the cam shaft 9 through the gear wheels mounted on the shafts 11, 12 and 13, switching of which increases the range of variable speed control of the cam shaft 9.

A cam 14 is mounted on the cam shaft 9, which, when the cam shaft rotates, moves the double-arm lever carrying the toothed sector 15. Moving, snarling, the toothed sector 15 compresses the spring 16 and rotates the gear 17, which does not transmit the rotation to

this direction is connected with her 1mufta overtaking gear 18.

When the cam 14 comes out of locking with the toothed sector 15, the spring 16 is activated. Under the action of the spring 16, the toothed sector 15, moving in the direction opposite to the direction of its movement, the node by the action of the cam 14, rotates the gear 17, transmitting the rotation by means of the overrunning clutch gear 18, engaging with bristles 19 and 20.

The gears 19 and 20 transmit the rotation to the knuckles 21 and 22 rigidly connected to them. The fist 21 at the moment, which does not require a piece of the finished spring, pushes away the Mechanism of continuous feed of material, mounted on the carriage 23.

The fist 22, after cutting off the finished spring, compresses the disc spring 24, stops the parts set in motion by the spring 16.

The gears 18 through the gears 19 and 20, the rotation of gears 25 and 26, rigidly connected to the cranks 27 and 28, is not rare.

The cranks 27 and 28 through two coils 29 reported reciprocating motion to two sliders 30, on which the lower cutting blades 31 are attached.

To fix the constant position of the cutting blades 31 and after the spring pieces, a latch is installed. 32.

The device works as follows.

The wire with the help of rollers 6 is fed to the stops of the mechanism for the formation of the spring diameter (not shown in the drawing), where it forms into the spring. During the winding of the spring, the mecapism crawlers of the cut are at the minimum distance from the cut zone. The expanded length of the spring is determined by the time of wire feed, after which the wire is cut.

The wire feed time is equal to the time during which the camshaft 9 makes one full revolution. During this time, cam 14 compresses the spring 16 (charges the battery).

The end of the complete rotation of the camshaft 9 is characterized by the fact that the fist 14 is disengaged from the toothed sector 15. This moment corresponds to the beginning of the cut, when the spring 16, through the above kinematic gears, drives the slide 30, which, by the time the blade 31 contacts the cut spring, acquires speed required to cut the spring for the required period of time, and a mechanism for the continuous feeding of material, the speed of which reaches the feed rate by the moment the blade contacts the cut spring Container material.

The speed of removal of the continuous material feed mechanism speed of the continuous nodal feed of the material is achieved due to

increasing or decreasing the degree of squeezing 16 by screwing in or unscrewing the cup 33 in the nut 34 secured to the frame.

5 After the blade 31 comes into contact with the spring being cut, the material feed mechanism is detached from the cam 21 that set it in motion, and then for a time during which the knife 31 cuts off the finished spring and comes out of contact with the remaining workpiece, but inertia moves constant speed.

After the knife 31 comes out of contact with the remaining billet, the mechanism of continuous nodalization of material stops the adjustable stop 35. SaTeiM spring 36 returns the mechanism of continuous feed of material to its original position at a rate much lower than the speed of removal of this mechanism.

0 After the length of the coiled spring is cut, the spring 16, limited by the adjustable stop 37, and then the slider 30 and the parts that move it except for the gear 17 and the gear sector ends

5 15 are moved to their initial position by inertia, consumption of the force of inertia for the compression of the cup and sponge 24.

The spring 24 stops the slider 30 and the parts connected to it and tends to replace them in the opposite direction. The latch 32, preventing this movement, fixes the upper position of the slide 30. After the knife 31 comes out of contact with the remaining workpiece and the mechanism for the continuous feeding of the material with the stop 35 comes in contact, the next winding of the spring begins.

Subject invention

Claims (2)

1. Device for winding: a spring of wire containing a nodachi roller mounted on a bed and kinematically interconnected with a drive for moving it, a spring winding mechanism, a drive cutting mechanism characterized by 5 by the fact that, in order to improve the performance and accuracy of the parameters of the springs manufactured, the drive for moving the mechapism of the feed is made in the form of the carriages installed in the railways provided for in the village, 0 carrier roller feeder and interacting with mounted on the frame cam, connected gear with placed on the axis, fixed in the frame, swivel two-arm lever on 5 one shoulder of which is equipped with a toothed sector, and on the second - a roller in contact with a spring placed in a glass rigidly mounted on the frame, acting on the stop mounted coaxially with the glass. 2. A device according to claim 1, characterized in that the drive of the cutting mechanism and the drive of the feed mechanism are interconnected by a gear. J7 L FIG.