SU1369994A1 - Device for twisting the ends of bundling wire - Google Patents

Abstract

The invention relates to packaging, in particular, devices for twisting the ends of a wire, and can be used to bond articles with openings, such as hacksaw blades. The aim of the invention is € 1 lf (L

Description

It improves the reliability of fixing the ends of the wire with the clamping jaws of the twisting head. The novelty is that the device for twisting the ends of the wire is equipped with L-shaped levers 27 for orienting the ends of the wire 3 relative to the axis of symmetry of the jaws 23.5 or more.

The invention relates to packaging, in particular, to devices for twisting the ends of a wire when wrapping bags, for example flat pieces with holes, in particular, hacksaw blades.

The aim of the invention is to increase the reliability of fixing the ends of the wire due to the introduction of L-shaped levers into the device for orienting the ends of the wire relative to the axis of symmetry of the clamping jaws.

FIG. I shows a device for twisting the ends of the binding wire, side view; in fig. 2 is a kinematic diagram of the proposed device; Fig. 3 shows a head for twisting the ends of a wire with a set of blanks of binding wire inserted into the hole, a regular section; FIG. 4 is the same at the moment of bending the ends of the wire and fixing them with the clamping jaws of the twisting head; in fig. 5 is a view A of FIG. 3,

A device for twisting the ends of the tie wire includes a body I (Fig.), A carriage 2 moving along a vertical axis with a feed mechanism and a wire trimming mechanism 3 from the drum 4, a tubular guide in the form of a hollow needle 5 mounted on the carriage 2 for wiring the end wires into the hole of the package 6; and a die 7 with an actuator 8 for twisting the ends of the wire.

The wire feeder and wire trimming 3 (fig. 2) of the movable carriage 2 driven by the actuator 9 includes drive rollers 10 and II mounted on the shafts of the gears 12, 3 and kinematically connected through gear 14 to the actuator 9.

On the shaft 15 of the gear 14 is fixed to the plunger 16, which interacts with

spring-loaded movable knife 17 adjacent to the stationary knife 18 of the cutting device.

Twisting head 7

wire 3 contains a drive shaft 19 with a sleeve 20 mounted on it with the possibility of axial movement. In the cavity of the drive shaft 19, a spring-loaded double-sided gear rack 21 is engaged coaxially with the toothed sectors 22 of the clamping jaws 23 installed in the radial groove on the end of the drive shaft nineteen,

 The shank of the toothed rack 21 passes through the cavity of the drive shaft 19 and rests in a spring-loaded stop 24, executing as a rod, mounted on the housing 1 and interacting with the stop 25 fixed on the housing of the movable sleeve 20. In the end cavity of the sleeve 20, on the inner surface spring-loaded springs 26 L-shaped two-shoulder levers 27, one shoulders of which are long, periodically interact with protrusions 28 fixed to piston bushing 29 of movable sleeve 20, and the second - short shoulders - serve to grip a piece of tie wire 3 inserted into the opening of the package of 6 parts.

35 A device for twisting the ends of the binding wire works as follows.

Package 6 {FIG. l) served on a tie-in position. At the same time the carriage 2

40 of the device is in the extreme upper position and the floor of the needle 5 (figure 4) for wiring the wire 3 is inserted from the opening of the package 6,

Next, the drive 9 of the wire feed mechanism 3 is turned on, and through gears 14-12 is driven into rotation when 3

The water rollers 10 and II, which pick up the binding wire and feed it from the drum 4 to the opening of the needle 5 attached to the carriage 2 of the device.

At the same time, the carriage 2 by the drive 30 moves downwards and the floor of the needle 5. (Fig. 3) for wire wiring is introduced into the opening of the package 6, In this case the sleeve 20 of the twisting head 7 is movable in the axial direction to the extreme left position such that

at once that set in the end

with protrusions 28 mounted on the piston bushing 29 of the movable sleeve 20 until a gap is selected. 1 (FIG. 3) between the stop 25 (FIG. 6) mounted on the housing of the movable sleeve 20 and the spring-loaded stop 24 mounted on the housing 1 of the device. The stop Q 24 releases a spring-loaded toothed rack 21 coaxially mounted in the cavity of the drive shaft 19, which, moving relative to the latter, rotates the toothed cavity of the sleeve 20 and the spring-loaded L-shaped levers 27 encompass the openings -22 of the jaws 23 fixing the ends of the splitting section filar wire 3. Next, the drive 8 is turned on (Fig. 2), the drive shaft 19 begins to rotate and twisting of the ends of the binding wire 3 occurs.

At the end of the cycle of wrapping the bag 6, the working medium is fed into the cavity b of the piston sleeve 29. The sleeve 20 moves in the opposite direction, 25 clamping jaws 23 expand, protrusions 28 release the L-shaped double arm levers 27, which are set to their original position by springs 26. Then the cycle repeats.

Tie package 6 parts.

After the end of the cycle of posting the wire 3 into the opening of the package 6, the pusher 16 (Fig. 2), mounted on the shaft 15 of the gear 14, interacts with a spring-loaded movable knife 17, which, displaced relative to the stationary knife 18, performs a piece of the end of the conductor 3. Simultaneously the wire feed is shut off.

Next, the actuator 30 moves the carriage 2 to its highest position. At the same time, the needle 5 is pulled out of the opening of the bag 6, leaving a piece of strap wire 3 in the hole.

During the subsequent operation cycle of the device, the working medium is fed into the cavity a (Fig. 3) fixedly mounted in the device case between the sleeve 20 and the drive shaft 19 of the piston sleeve 29. The sleeve 20 begins to move relative to the piston sleeve 29, while the L-shaped grips of the spring-loaded two shoulders The levers 27 (Fig. 4), which are installed in the end cavity of the sleeve 20, move with the latter and interact with the ends of a piece of strapping wire inserted into the opening of the package of 6 parts. As the L-shaped grippers of the levers 27 move, the latter bend the ends of the wire 3, fixing them in the area of action of the clamping jaws 23 installed in the radial groove of the end of the drive shaft 19, the bending of the ends of the wrapping wire occur when the spring-loaded two-arm levers interact.

thirty

Claims (1)

Invention Formula A device for twisting the ends of the binding wire, comprising 2g mounted on the housing tubular wire guide and a movable sleeve, inside of which a hollow drive shaft and a toothed rack with clamping lips are placed coaxially, characterized in that, in order to increase the reliability of fixing the wire with clamping jaws, it is equipped with L-shaped spring-loaded levers wire bending, 45 installed on the inner surface of the liner, an emphasis fixed on its outer surface, and a sleeve mounted on the device case between the liner and the drive shaft with the outer sleeve. 50 blunt ends connected to the L-shaped levers, while the device case has a thy, one end of which is connected to the rack and another with an emphasis. 9994 with protrusions 28 mounted on the piston bushing 29 of the movable sleeve 20 until a gap is selected. 1 (FIG. 3) between the stop 25 (FIG. 6) mounted on the housing of the movable sleeve 20 and the spring-loaded stop 24 mounted on the housing 1 of the device. Limiter Q 24 releases a spring-loaded toothed rack 21, coaxially mounted in the cavity of the drive shaft 19, which, moving relative to the latter, rotates the toothed sec-torus -22 of the clamping jaws 23 fixing the ends of the strap wire 3. Next, the drive 8 is turned on (Fig. 2 ), the drive shaft 19 begins to rotate and the ends of the 20 strap wire 3 are twisted. thirty Invention Formula A device for twisting the ends of the binding wire, comprising 2g mounted on the housing tubular wire guide and a movable sleeve, inside of which a hollow drive shaft and a toothed rack with clamping lips are placed coaxially, characterized in that, in order to increase the reliability of fixing the wire with clamping jaws, it is equipped with L-shaped spring-loaded levers wire bending, 45 installed on the inner surface of the liner, an emphasis fixed on its outer surface, and a sleeve mounted on the device case between the liner and the drive shaft with the outer sleeve. 50 blunt ends connected to the L-shaped levers, while the device case has a thy, one end of which is connected to the rack and another with an emphasis. Phie. J f f "f .. f 7, FIG. i i (pue. 22 ib