SU1500604A1 - Device for coiling wire brush sections - Google Patents

Description

The invention relates to the manufacture of a pile for wire brushes,

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can be used in the tool industry and allows you to expand the technological capabilities of the device. The device contains a drive mandrel 6 and a carriage 12 which is kinematically connected with it, on which rollers for flattening and grooving of wire and tension rollers are placed. The device also contains stepper. the drive for moving the carriage and the spring loaded compensating roller.

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1 .1500604

The invention relates to mechanical engineering, in particular, to the production of a stripping tool, and can be used in the tool industry, as well as in light industry and in the public utilities for the production of stripping metal brushes.

The purpose of the invention is to expand technological capabilities by automatically obtaining multilayer sections of flattened and crimped wire.

FIG. 1 shows a kinematic 15 device diagram {per fig. 2 - carriage in isometry; in fig. 3 is a view A of FIG. 2; in Fig.'4 - device, general view.

The device consists of a drive 1, 20

V-belt transmission 2, variator 3, chain 4 and gear 5 gears, mandrel 6, worm pair 7, cylindrical gear pair 8, cam 9, lever 10, guide 11, carriage 25 12, gear pairs 13 and 14, cam 15, limit switch 16, pneumatic cylinder 17, ratchet engagement 18, limit switch 19, retractor roller 20, tension spring 21 mounted on frame 22, system providing feed and movement of wire from riot 23 mounted on turntable 24 to mandrel 6 , and a control panel 35.

The system for feeding and moving the wire is mounted on the carriage 12 and consists of a roller 26, flattening rollers 27 of the wire, smooth rollers 40 28 and 29, rollers. 30 of corrugated wire, corner lever 31, at one end of which roller 32 is installed, and the other interacts with switch 33, and roller 34. Angular lever 31 is mounted on axis 35 and pressed by spring 36. Position 37 designates the wire to be processed.

The device works as follows. 50

From the motor rotation Che / ·

The cut of the V-belt transfer 2 is transmitted to the variator 3, which serves for stepless control of the winding speed. From the variator 3 through $$ chain drive 4 and gear 5 rotation is transmitted to the mandrel 6.

In addition, the rotation through the worm gear 7, interchangeable gears 8 and 4

It is given to the cam 9, which, through the lever 10, acts on the guide 11 of the carriage 12, causing it to reciprocate. Next, the rotation through the gear train 13 and the interchangeable gears 14 is transmitted to the cam 15 acting on the limit switch 16. The operation of the limit switch 16 signals the end of the process of winding the beam and gives a command to actuate the pneumatic cylinder, which through the ratchet engagement 18 moves the carriage 12 one step, to wind the next beam. At the end of the winding of the entire mandrel carriage 12 acts on the limit switch 19, which gives the command to turn off the main drive.

The wire 37 from the riot 23 passes through the roller 20 connected to the tension spring 21, and through the roller 20 goes into the gap between the rollers

27 flattening. Next, the wire is sent to the rollers 28 and 29. Laying dies on the rollers 28 and 29 as follows. On the roller

28 half of the turn is placed in a clockwise direction, then the wire (half of the turn) is placed on the roller 29 counterclockwise, then the next half of the turn is clockwise on the roller 28, etc.

until on each of the rollers 28 and 29 three halves of the coil are laid in different directions, i.e. the wire is wound on the rollers 28 and 29 in the form of three eight-loop loops. Then the wire from the roller 29 is sent to the roller 32, which is mounted on the angular lever 31, one end of which extends from the back of the carriage and is located above the switch 33. The lever rotates on the axis 35 and is spring loaded by the spring 36, Then the wire passes between the gears 30, where it corrugated. After the gears corrugated wire through the roller 34 enters the mandrel 6.

The roller 20 with the spring 21 perform the function of a compensating element, eliminating the influence of the reciprocating movement of the carriage and the uneven rotation of the riot and, as a consequence, the uneven tension of the wire in the area between

1500604

riot and roller system ,. Roller 20 should exceed the total amplitude of the reciprocating movements of the carriage 12, the unevenness of the unwinding of the wire from riot 23 and the unevenness of the wire through the entire system of rollers, including rollers for corrugation and crushing. Experimental data shows that roller 20 stroke is 7–15 times the amplitude of the reciprocating movements of the carriage. Smooth rollers 28 and 29 were used to accumulate a margin of wire length and to separate the influence of the rollers 27 of flattening the wire and the corrugating rollers 30, where the wire passes through a triple eight-like loop. Depending on the diameter of the wire and the performance of the entire wire feed system, the number of eight-loop loops may be different.

In the process of winding roller 32 25

is in the leftmost position, since its axis has the possibility of some movement along the groove 38, and the pressure force from the passing wire tends to move it to the left. This "floating" position of the axis also compensates for the uneven movement of the wire. With a sharp decrease in pressure or during

wire breakage lever 31 under the action □ <a

The spring 36 moves the roller to the right position, and the other end acts on the switch 11, which, in turn, disables the operation of the machine. This is achieved by automatically turning off the device.

FIG. 4 shows a special semi-automatic machine.

The machine manually install the mandrel, which is one side upi- ₄₅ raetsya the rotating center of the machine, on the other hand urged a focus associated with the spindle.

The wire riot is placed on the turntable, and its end is passed through all the rollers and secured to the mandrel. After winding sections along the entire length of the mandrel (850 mm) machine

automatically stops, the wire near the mandrel snack and fix. The mandrel is removed from the machine for further processing of the beams (bonding, separation, cutting

uchkov, etc.). On the machine set a new mandrel, free end

the wire is fixed on the mandrel, turn on the machine and the cycle repeats.

Claims (1)

Claim A device for winding wire brush sections, containing a drive mandrel placed on the body for winding the wire and a carriage kinematically connected to the mandrel for laying out the wire with rollers placed on it, in order to expand technological capabilities by automatically obtaining multi-layer sections rolled and corrugated wire, the carriage is placed on a toothed rack inserted into the device mounted in guides, the device is provided with additional with a stepper drive, moving the carriage, made in the form of a ratchet wheel with a pawl and a driving pneumatic cylinder connected to the rail, mounted on the carriage by rollers for flattening the wire mounted on the body through a compensation spring with a tension roller, the amplitude of movement of which exceeds the amplitude of the reciprocating movement of the carriage within one step., two smooth rollers for braking the wire, placed on the carriage between the rollers for corrugation and flatting rollers, and placed on the carriage a spring-loaded angular lever, one arm of which is mounted roller for placing the feed wire, and the other shoulder is arranged to interact with a limit switch associated with the drive, wherein the toothed rack of the carriage is associated 'with a drive through the cam and dammed *' nenny lever. 1500604 FIG. 2 6 1500604 Physical.ch