KR200310293Y1 - Thread rolling machine for manufacturing bolt - Google Patents

Abstract

A rolling machine for manufacturing bolts for processing screws on an outer circumferential surface of a material having a predetermined diameter is disclosed.

The conventional rolling mill has a problem that the productivity is lowered and the manufacturing cost is increased by cutting the material straightened by the straightener to a predetermined length and then supplying it to the rolling die, so that the winding reel 21 A movable straightener 22 for straightening the raw material 20 wound around the sheet, a cutting machine 27 for cutting the raw material 20 supplied from the straightener 22, and a cutting machine 27 A material supply part 30 for selectively supplying the material 20 to the induction pipe 29 and a rolling die part 40 for processing a screw on the outer circumferential surface of the material 20 supplied from the material supply part 30. And a die manufacturing machine for bolt manufacturing, which includes a die adjusting part 50 for adjusting the interval of the rolling die part 40.

Therefore, the work of conveying, cutting and supplying the material, and threading are automatically performed to further improve productivity, significantly reduce the manufacturing cost, and finely adjust the spacing of the rolling die, thereby making the operation very convenient.

Description

Thread rolling machine for manufacturing bolt

The present invention relates to a bolt manufacturing forging machine, and more particularly to a bolt manufacturing rolling machine that is made of the cutting and supply of the material automatically, and easy to adjust the spacing of the rolling die.

In general, rolling processing is a processing method in which a material is sandwiched between a pair of rolling dies and plastically deformed into a desired shape. The rolling process is usually performed at room temperature, and is used to process bolts or gears with screws machined on the outer circumferential surface. Is made of mold steel, bearing steel, alloy steel, etc., and the flat dies, which have the shape of the screw in the form of flat plates, are inserted into a pair of dies and reciprocated the dies while applying pressure to process the threads. A circular die made of a round shape of a screw rotates two circular dice while inserting a material between them and processes threads. A flat die is called a reciprocating type and a circular die is a rotating type. The reciprocating type is used for mass production of small screws, and the rotary type is used to make precise screws, and both the reciprocating type and the rotary type have advantages in that the machining time is very short compared to the screw manufacturing by cutting. The precision is improved, and most of the screws used for fastening are manufactured by rolling, and many rolling rolls are manufactured, and rack and pinion types are used for rolling the gears.

1 is a schematic view showing a conventional rolling mill, and the raw material 11 wound around the take-up reel 10 is supplied while being unwound so that the raw material 11 is formed in a straight line in the straightener 12. 12 is passed through the material 10 is cut to a predetermined length in the cutter 13 and then stored in the material storage container 14, the material 11 stored in the material storage container 14 is a worker feeder 15 Is supplied one by one), it is configured to process the bolted 17 in the rolling die 16 is stored in the product reservoir 18.

However, such a conventional rolling mill is not only reduced productivity by supplying the material cut from the cutter by the operator, but also the cost is increased, it is difficult to fine-tune by adjusting by operating with a single motor when adjusting the spacing of the rolling dies Problems are inherent.

The present invention is devised to solve the above problems, the object of the present invention is to improve the productivity by cutting and supplying the material is made automatically, and the forging bolt for manufacturing bolts that can significantly reduce the cost To provide.

Another object of the present invention is to provide a very simple to use bolt manufacturing rolling machine to be able to fine-tune the rolling die.

1 is a schematic view showing a conventional rolling mill for manufacturing bolts.

Figure 2 is a schematic diagram showing a rolling machine for manufacturing a bolt according to the present invention.

Figure 3 is a plan view showing a material supply unit in the bolt manufacturing machine according to the present invention.

4 is a plan view showing the operating state of FIG.

5 is a schematic view showing a die adjusting portion in the bolt manufacturing machine according to the present invention.

Explanation of symbols on the main parts of the drawings

20: material 21: reel

22: straightener 27: cutter

29: guide pipe 29a: material discharge

30: material supply part 32: hinge pin

33: Cylinder 34: Operating Bracket

35: detection switch 36: operation bar

36a: outlet 40: rolling die portion

41: fixed rolling die 42: moving rolling die

44: moving bracket 50: die adjuster

51: slider 52: support bracket

53: screw shaft 54: reducer

55: coupling 56: high speed motor

57: electronic clutch 58: low speed motor

The bolt manufacturing rolling machine according to the present invention for achieving the above object is a movable straightener for straightening the material wound on the winding reel, a cutter for cutting the material supplied from the straightener, and cutting in the cutter And a die supply unit for processing a screw on an outer circumferential surface of the raw material supplied from the raw material supply unit, and a die adjusting unit for adjusting a distance between the rolled die units.

Therefore, according to the present invention, the work of conveying, cutting and feeding the material, threading, etc. are automatically performed to further improve productivity, significantly reduce the manufacturing cost, and finely adjust the spacing of the rolling die, which is very convenient. Will be done.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

2 is a schematic view showing a bolt manufacturing machine according to the present invention, wherein a winding reel 21 is wound around a material 20 on one side thereof, and on one side of the winding reel 21 a straight line of the material 20 is provided. The straightener 22 for forming in the form is provided.

Guide rollers 23 and 24 are provided on both sides of the straightener 22, and the straightener 22 and the guide rollers 23 and 24 are mounted on the upper side of the movable support 25. The movable support 25 is coupled to the wheel 26 to the lower side to be movable.

And, one side of the movable support 25 is provided with a cutter 27 for cutting the material 20 to a predetermined length, the cutter 27 is a cutter (not shown) in accordance with the operation of the cylinder 28 It is configured to descend and cut the material 20.

Of course, the cutter 27 is not limited to cutting the raw material 20 by the operation of the cylinder 28, for example, it is possible to cut the raw material 20 by the operation of the rotating cam in accordance with the drive of the motor. It can be configured to be.

On the other hand, one side of the cutter 27 is provided with an induction pipe 29 into which the material 20 is inserted, and a material discharge part for discharging the material 20 therein at the tip of the induction pipe 29. (29a) is coupled.

The front end of the induction pipe 29 is provided with a material supply unit 30 for supplying the material 20 inserted therein.

As shown in FIG. 3, the material supply unit 30 is coupled to a cylinder 33 pivoted around a hinge pin 32 on one side of the support 31, and the cylinder 33 is connected to the support 31. It is mounted according to the position of the operating bracket 34 mounted on the sensing switch 35 for operating the cutter (27).

The operating bracket 34 is integrally coupled to the cylinder 33 to operate the sensing switch 35.

The operation bar 36 coupled to the cylinder 33 is formed with a discharge port 36a for selectively discharging the material 20, one end of the spring 37 is coupled to the front end and the other end of the support bar 31. It is fixed to).

In addition, the operation bar 36 is inserted into the guide groove 38a of the fixing bracket 38 mounted on the support 31, and the guide groove 38a is rotated by the operation bar 36 at a predetermined angle. It is sized to be enough.

On the other hand, in the rolling die portion 40 for processing a screw on the raw material 20 supplied through the raw material supply unit 30, a fixed rolling die 41 is fixed to one side, and the moving rolling die 42 on the opposite side. Is installed.

The fixed rolling die 41 is fixed to the support 31 by the fixing bracket 43, the moving rolling die 41 is configured to move in the transverse direction from the support 31 by the moving bracket 44. do.

The moving rolling die 42 is configured such that an interval with the fixed rolling die 41 is adjusted by the die adjusting unit 50.

As shown in FIG. 5, the die adjuster 50 includes a slider 51 coupled to a moving bracket 44 supporting the moving roll die 42, and mounted on a support 31 to the slider 51. The screw shaft 53 is coupled to the rotating support bracket 52 is rotated, the reducer 54 is coupled to the front end of the screw shaft 53.

The high speed motor 56 is coupled to the reducer 54 via a coupling 55, and the low speed motor 58 is coupled to the high speed motor 56 via an electromagnetic clutch 57. Is done.

The bolt (B) machined from the rolling die portion 40 is dropped into the product storage container 60 is stored.

The rolling machine for manufacturing bolts according to the present invention configured as described above is supplied straight to the straightener 22 through the guide roller 23 in a state in which a material 20 having a predetermined diameter is wound on the winding reel 21, and then is in a straight line. After it is formed to pass through the guide roller 24 again is supplied to the cutter (27).

When the raw material 20 supplied to the cutter 27 is cut into a predetermined length according to the operation of the cylinder 28 and then supplied to the raw material supply unit 30 through the induction pipe 29, The bolt B machined by the operation is stored in the product reservoir 60.

At this time, the material 20 supplied through the inside of the induction pipe 29 is discharged through the material discharge portion 29a of the tip as shown in Figure 3, the material discharged through the material discharge portion 29a When the tip of the (20) is in contact with the tip of the operating bar 36 to apply a load, the cylinder 33 and the operating bar 36 is rotated about the hinge pin (32), thereby operating bracket 34 While rotating, the sensing switch 35 is operated.

When the sensing switch 35 is operated by the operation bracket 34, the cylinder 33 is operated to advance the operation bar 36, so that the outlet 36a of the operation bar 36 is shown in FIG. 4. As shown in the figure, if the material 20 is positioned in line with the material 20, the material 20 is advanced through the discharge port 36a and supplied to the roll die portion 40 so that the screw processing is performed.

At the same time, a signal is sent to the cylinder 28 of the cutter 27 by the operation of the sensing switch 35 so that the cylinder 28 is operated to cut the material 20.

Therefore, the cylinder 33 of the cutter 27 is operated only by the operation of the sensing switch 35, thereby preventing unnecessary cutting of the raw material 20 and the like.

When the material 20 is discharged through the outlet 36a, the operating bar 36 is returned to its original position, which means that the cylinder 33 and the operating bar 36 are driven by the elastic force of the spring 37. It will be level.

Subsequently, when the discharge of the material 20 is completed through the discharge port 36a of the operation bar 36, the material 20 in the induction pipe 29 has an end of the operation bar 36 in the material discharge part 29a. By maintaining the state in contact with the side of the subsequent processing is possible.

When the length of the material 20 is changed, it is possible to adjust the length of the material 20 by changing the position of the transfer support 25.

As the operation is repeatedly performed, the threading of the material 20 is automatically performed, thereby further improving productivity.

On the other hand, when the diameter of the material 20 is different, it is possible to adjust the distance between the fixed and moving the roll die 41 (42) of the rolling die portion 40, which is possible by operating the die adjuster (50).

That is, when the high speed motor 56 is operated first, the rotational force is transmitted to the reducer 54 through the coupling 55, and then the screw shaft 53 rotates so that the slider 51 moves forward or backward to move the moving bracket 44. By moving the moving rolling die 42 in a large amount.

Subsequently, when the low speed motor 58 is operated, the rotational force is transmitted to the reducer 54 through the electromagnetic clutch 57, and the rotational force transmitted to the reducer 54 is transmitted to the screw shaft 53 to finely slide the slider 51. ) So that the movement rolling die 42 is finely moved so that fine adjustment is possible.

The present invention is not limited to the specific embodiments described above, anyone of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention claimed in the following claims will be capable of various modifications. .

Therefore, according to the present invention, the work of conveying, cutting and feeding the material, threading, etc. are automatically performed to further improve productivity, significantly reduce the manufacturing cost, and finely adjust the spacing of the rolling die, which is very convenient. There are many effects such as being done.

Claims (3)

A movable straightener 22 for straightening the material 20 wound around the winding reel 21; Cutter 27 for cutting the raw material 20 supplied from the straightener 22; A material supply unit 30 for selectively supplying the raw material 20 cut by the cutting machine 27 to the induction pipe 29; A rolling die part 40 for processing a screw on an outer circumferential surface of the material 20 supplied from the material supply part 30; Rolling machine for manufacturing a bolt comprising a die adjusting unit (50) for adjusting the interval of the rolling die portion (40). The method of claim 1, The material supply unit 30 is an operating bar 36 having a cylinder 33 hinged to one side by a hinge pin 32, an outlet 36a advanced by the operation of the cylinder 33, and the The cylinder 33 and the cutter by the induction pipe 29 having a material discharge part 29a installed to contact the material 20 with the operation bar 36, and an operation bracket 34 mounted on the cylinder 33. Rolling machine for manufacturing bolts comprising a sense switch (35) to operate (27). The method of claim 1, The die adjuster 50, the slider 51 is coupled to the moving bracket 44 coupled to the movement rolling die 42 and transferred in the transverse direction, and the screw shaft rotated by screwing to the slider 51 ( 53, the speed reducer 54 coupled to the distal end of the screw shaft 53, the high speed motor 56 coupled to the speed reducer 54 via a coupling 55, and the high speed motor 56 Rollhead for manufacturing a bolt comprising a low-speed motor (58) coupled via an electromagnetic clutch (57).