KR20090041233A

KR20090041233A - Structure head for steel wire bending machine

Info

Publication number: KR20090041233A
Application number: KR1020070106831A
Authority: KR
Inventors: 문종판
Original assignee: 문종판
Priority date: 2007-10-23
Filing date: 2007-10-23
Publication date: 2009-04-28

Abstract

A head for a steel wire vending unit is provided to be designed and manufactured easily and to reduce manufacture cost by molding various shape using only the molding tool of one tub. A head for a steel wire vending unit comprises a table driving device(20) installed at a rear side of an upright board(10) in a leading end of a bed, a driving gear(22) operated by the drive unit and adhered to a front side of a driven gear, an intermediary gear(13) and a driven gear(31) and a turn-table(30) of disk installed at a front side of an upright board. The turn-table comprises a plurality of cutters and molding tools installed at a front side. The slave gear and the turn-table are rotated together in multi-direction and in various ways by the drive unit.

Description

Steel Wire Bending Machine Head {STRUCTURE HEAD FOR STEEL WIRE BENDING MACHINE}

The present invention relates to a steel wire banding machine for straightening the wire wound on the bobbin to be supplied to the material of products such as springs, cages, carts, etc., and to be bent to a predetermined shape. A head for a steel wire bending machine that enables bending with a minimum bending molding jig.

Since steel wire is wound around the drum, the wire bent should be straightened and bent like a coil spring.The straight wire machine is used to straighten the steel wire (7) and then cut into a certain length into a bending machine. By molding.

1 and 2, the conventional bending machine is a steel wire processing machine for cutting the steel wire 7 inserted into the guide roller 5 and the pressure feeding device 6 forcibly bent in a set shape, and then cutting and transporting the steel wire 7 into a design dimension. Several sets of molding fixtures 3 and two sets of cutters 4 are radially hermetically at bending angles based on the steel wire passing holes 2 drilled in the center of the head 1.

The cutter 4 advances in the center direction at the same time in two directions and cuts the steel wire, so there are two sets of two. However, the molding jig 3 differs in circumstances. Since the bending point and bending direction of steel wire materials are varied, even though multiple molding fixtures are densely arranged at an angle of about 45 degrees, there are angles that make it difficult to work. In fact, it is not easy. The head is disc but non-rotating.

As shown in Korean Patent Laid-Open Publication No. 2001-2565, the more bending points of steel wire materials and the more bending directions, the greater the demand for molding fixtures. Since the head is non-rotating and the direction of the molding jig cannot be arbitrarily changed, a plurality of molding jig should be provided at various angles in order to manufacture a product having a desired shape.

Each molding jig is essentially accompanied by a driving means and a bending means. The driving means are generally servo motors and transmission means or pneumatic or hydraulic cylinders, and the bending means consists of a cam attached to the follower body and a follower joint, a reciprocating element bound to the follower joint and a bending tip attached to the tip of the reciprocating element. The more molding fixtures to be equipped, the more complicated the structure, the lower the manufacturability and the more difficult the repair. In addition, the production cost is high, there is a lot of problems, such as a change in weight and poor portability and mobility.

Accordingly, an object of the present invention is to provide a head for a steel wire bending machine capable of bending a steel wire material at various angles regardless of the bending direction and the bending portion with a minimum molding jig.

Another object is to improve the quality by adopting a structure in which the molding jig is significantly reduced, it is easy to design and manufacture the bending machine and significantly lower the manufacturing cost.

This problem is a steel wire bending machine which bends a steel wire material fed by a pressure feeding device in a predetermined direction in a predetermined direction with a molded jig attached to a head, and the present invention first forms the head in a rotary turntable structure in place. The table can be rotated at a desired angle according to the bending direction by the servo motor, and at the same time, it is equipped with two sets of cutters and molding jig so that they can be bent as designed with the minimum molding jig regardless of the bending direction of the steel wire. It can be achieved with a head for one liner bending machine.

In the present invention, the steel wire bending machine head is configured to be formed while moving the molding jig to the required position by forming a movable jig, it can be molded in various shapes while moving in multiple angles using only one set of jig to be useful to apply to various bending machines Can be used.

The present invention has a very simple structure compared with the conventional multi-molded jig head. Therefore, since the molding jig is reduced, it is easy to design and manufacture the head, and the manufacturing cost is greatly reduced. In addition, the maintainability of the molding fixture is also significantly improved, and the weight is reduced, so that the transport and mobility are also improved.

In Fig. 3, at one point of the upright plate 10, which is erected at the tip of the bed (not shown), a main shaft 11 having a hole is provided along the direction in which the steel wire is introduced, and around the main shaft 11 in the coaxial direction. The support shaft 12 is installed. The main shaft 11 is a turntable support tube, and the subshaft 12 is used as a support shaft of the idler combined relay gear 13 to decelerate the power of the drive gear and transmit it to the driven gear for the turntable. The main shaft 11 is fitted with a driven gear 31 attached to the rear surface of the turn table and has a conventional structure that can be fixed so as to synchronize while preventing the shaft falling out in a one-touch manner.

The table driving means 20 is provided in the back surface of the upright board 10. The table driving means 20 is a servo motor for rapidly and accurately rotating the turntable in a desired direction by a desired angle. The output shaft 21 penetrates the upright plate 10 and is installed in the same direction as the main shaft 11. The drive gear 22 is provided in the shaft end of 21).

The turntable 30 is required to change the bending direction of the molding jig by rotating the cutter at a desired angle by mounting the cutters 40a and 40b and the molding jig 50a and 50b. A pair of well-known cutters 40a and 40b are formed on the split line facing the middle so that the blades 41 face each other, and a pair of molding jig 50a and 50b having a normal structure is bent on the remaining split line. Tip 51 is installed facing each other.

A driven gear 31 is attached to the rear surface of the turn table 30. The driven gear 31 is indirectly connected to the drive gear 22 through the relay gear 13 to receive power, and the center of rotation of the turntable 30 is also provided with a well-known steel wire passing hole 32.

The drive gear 22 is fitted to the output shaft 21 of the drive means 20 penetrating the upright plate 10 so as to be rotated together, and the subsidiary shaft 12 is provided with an idling relay gear 13. Subsequently, the driven gear 31 is attached to the rear surface of the turn table 30 on which the cutters 40a and 40b and the molding jig 50a and 50b are mounted, and are fitted to the main shaft 11 to assemble so that the shaft does not fall out. It looks like 5.

In FIG. 6, the turn table 30 rotates left or right according to the driving direction of the driving means 20, and the positions and directions of the cutters 40a and 40b and the molding jig 50a and 50b are changed each time. When the cutters 40a and 40b fall at any time regardless of their position and direction, the blades 41 simultaneously move in the center direction to cut the steel wire and return, and the molding jig 50a and 50b are driven by the driving means 20. By changing the position and bending direction at any time by operating the bending tip 51 in the opposite direction to bend the steel wire material and return to the original position by the drive means again.

The driving means 20 is electrically connected to a control panel or a computer (not shown), and then rotates forward and reverse according to a program previously inputted. The drive table 20 rotates forward or backward at an arbitrary angle in the same manner as described above. In this case, only two pairs of molding jig 50a and 50b are moved to a set position regardless of the bending direction to bend the steel wire material into various shapes.

1 is a side view of a conventional general steel wire bending machine

Figure 2 is a layout example of the cutter and molding jig for the non-rotating head of the conventional bending machine

Figure 3 is an exploded perspective view showing the configuration of the turntable head of the present invention

4 is an assembled perspective view of FIG. 3.

5 is a front assembly view of the assembly

6 is a state in which the turntable is rotated to change the direction of the molding fixture

[Code Description of Important Parts of Drawing]

10: upright

11: spindle

13: relay gear

20: table driving means

22: drive gear

30: turntable

31: driven gear

40a40b: cutter

50a50b: molding jig

Claims

In a steel wire bending machine for bending and forming a straightened steel wire material fed by a pressure feeding device into a molding jig, the table driving means 20 is installed on the rear surface of the upright plate 10 standing on the front end of the bed, On the front side, the drive gear 22, the relay gear 13, and the driven gear 31 are installed so as to be driven by the driving means 20 described above, and the plurality of cutters and molding teeth on the front side of the driven gear 31 A disk for a steel wire bending machine having a disk-shaped turntable (30) attached thereto, wherein the driven gear (31) and the turntable (30) can be rotated in multiple directions and at various angles by a driving means (20).

According to claim 1, wherein the front surface of the upright plate 10 is provided with the output shaft 21 of the drive means 20, the sub-shaft 12 for attaching the relay gear, and the main shaft 11 for attaching the turntable to protrude forward. Head for steel wire bending machine characterized in that.

According to claim 1, On the one side dividing line facing the circumference of the front face of the ten table 30 in one quarter, the pair of well-known cutters (40a, 40b) are installed facing each other facing the blade 41 A head for a steel wire bending machine, characterized in that a pair of known molding jig (50a, 50b) is installed so that the bending tip 51 faces each other on the dividing line.