KR100433468B1 - Punching device of a press - Google Patents

Abstract

The present invention is an operation mode cam formed to have an arc shape of the appropriate length on the inner surface of the pulley linked to the motor; A fixed shaft having a first roller on one side to move the cloud along the outer circumference of the operation mode cam, and a support plate having a proper size formed on the other side thereof; Transfer means for moving the first roller interposed in the fixed shaft to an operation mode cam by an electrical signal; A support having one side fixed to a side wall of the support frame and having a first clutch bearing at a predetermined position on the other side thereof; It is rotatably coupled to the first clutch bearing, the fixed shaft is rotated at a predetermined angle by the first roller which is rolled along the operation mode cam while having a through hole so that the fixed shaft is movably fitted on one side thereof. A first rotating body in which the member is integrally formed; It is interposed between the fixing member of the first rotating body and the support plate of the fixed shaft, when the conveying means is not in operation to return the first roller installed on the fixed shaft by pressing the support plate by its own elastic force from the operation mode cam spring; A second rotating body having a second clutch bearing interposed therebetween to be coupled to one side of at least one driving roller of the pair of driving rollers so as to rotate in the same direction as the supply direction of the raw material; Power transmission means for transmitting the rotational force of the first rotating body to the second rotating body; And a length adjusting means installed at a predetermined position of the first rotatable body to selectively adjust the length of the unmolded part of the material according to the use place.

Description

Punching device of a press}

The present invention relates to a press for molding a material of a thin plate, and in particular, by controlling the length of the unmolded part having a predetermined interval during molding of the material according to the use of the material to form a variety of materials of the product, The present invention relates to a press punching device capable of improving the productivity of a material by reducing the number of working steps for forming an unmolded part.

In general, presses are a type of machine tool in which a ram, which is repeatedly lifted and lowered by a power transmission unit, presses the material into various shapes, and such a press is generally used according to the purpose of use of the material. It is divided into drawing processing, cutting processing or punching processing.

In this type of press, the punching process is a predetermined shape suitable for the circular, polygonal, or the intended use of the material by pressing the material by pressing the material whenever the sheet material is supplied at a constant pitch between a pair of drive rollers. For example, as a result of forming a hole by forming a lattice in a lattice shape, a configuration of a conventional press punching device for forming a material is as follows.

1 to 2 are front and side views of a conventional press punching device, and FIG. 3 is a plan view of a material molded by the conventional press punching device. Here, reference numeral 1 denotes a press, and the press 1 has a support frame 2 installed to have an appropriate size, and one side of the support frame 2 allows the motor 3 to transmit a rotational force by an electrical signal. Is interposed, the rotational force of the motor (3) is transmitted to the pulley (6) having a shaft (5) by the power transmission member (4).

In addition, the first operating bar is interlocked with the main shaft 7a which is moved up and down while being in surface contact with the outer circumference of the first cam 7 fixed to one side of the shaft 5 so as to reciprocate rotation at an appropriate rotation angle. (7b) is installed, one end of the first operating bar (7b) is a pair of drive rollers (8) to supply a predetermined pitch to the unmolded material (S) during the reciprocating rotation of the first operating bar (7b) It is rotatably coupled to at least one of the drive rollers (9). Of course, a clutch bearing (not shown) is interposed between the first operating bar 7b and the driving roller 9 to prevent the reverse rotation of the driving roller 9 during the reciprocating rotation of the first operating bar 7b. have.

It operates to move up and down about the hinge shaft 10b to the moving shaft 10a which is moved up and down while being in surface contact along the outer circumference of the second cam 10 fixed at a predetermined position of the shaft 5. The lever 10c is installed to be interlocked, and a lower portion of the actuating lever 10c is formed on the material S supplied at a constant pitch through a pair of drive rollers 8 and 9 when the actuating lever 10c descends. The ram 11 is provided so that it may shape | mold S1. Here, the ram 11 is repeatedly moved to the material S, which is supplied upward at a constant pitch by being moved upward by its own expansion force of the elastic member 11a interposed on the upper portion of the support frame 2. Will be dealt with.

Meanwhile, the molding S of the ram 11 is moved to the left and right directions every one stroke according to the up and down movement of the ram 11, thereby forming the material S, which is one side of the shaft 5. A bevel gear device 12 is installed at the tip, and an actuating shaft 12a made of a universal joint on the upper part of the bevel gear device 12 is coupled to the ram 11 so as to move left and right. As the molding position is moved horizontally, the forming part S3 of the material S is zigzag-perforated, and the overall shape is formed into a rhombus lattice shape.

The material S processed by the press punching device configured as described above has the unmolded part S2 to have a predetermined section between the molding parts S1 according to the purpose of use of the material S as shown in FIG. 3. It is required, but means for molding the unmolded portion S2 of the raw material S have not been provided in the related art.

Therefore, the molding part S1 is molded on the material S as part of the molding part S1 and the unmolded part S2 on the raw material S so that the molding part S1 is successively formed. By moving the S) a certain distance to form the unmolded portion (S2) and at the same time performing the process of forming the shaping portion (S1) at the position where the unmolded portion (S2) is terminated by forming a molded portion ( S1) and the unmolded part S2 are alternately molded, but this is because the process for manually molding the unmolded part S2 of the raw material S is performed manually, so that the interval between the unmolded parts S2 is constant. As a result, the productability of the raw material S was remarkably inferior, and the unmolded part S2 was molded by hand on the raw material S, resulting in a decrease in productivity.

In addition, in order to mold the unmolded portion (S2) to the material (S), the worker had a risk of a safety accident in the process of moving a certain distance manually.

Accordingly, the present invention is to solve the general problems as described above, the purpose is to selectively control the length of the unmolded portion having a predetermined interval when forming the material according to the use of the material to form a variety of materials of the product In addition, the present invention provides a press punching device capable of improving the productivity of the material by reducing the number of working steps for forming the unmolded part on the material.

The present invention for achieving the object is an operation mode cam formed to have an arc shape of the appropriate length on the inner surface of the pulley rotated in one direction by the power transmission member for transmitting the rotational force of the motor; A fixed shaft having a first roller on one side to move the cloud along the outer circumference of the operation mode cam, and a support plate having a proper size formed on the other side thereof; Transfer means for moving the first roller interposed in the fixed shaft to an operation mode cam by an electrical signal; A support having one side fixed to a side wall of the support frame and having a first clutch bearing at a predetermined position on the other side thereof; It is rotatably coupled to the first clutch bearing, the fixed shaft is rotated at a predetermined angle by the first roller which is rolled along the operation mode cam while having a through hole so that the fixed shaft is movably fitted on one side thereof. A first rotating body in which the member is integrally formed; It is interposed between the fixing member of the first rotating body and the support plate of the fixed shaft, when the conveying means is not in operation to return the first roller installed on the fixed shaft by pressing the support plate by its own elastic force from the operation mode cam spring; A second rotating body having a second clutch bearing interposed therebetween to be coupled to one side of at least one driving roller of the pair of driving rollers so as to rotate in the same direction as the supply direction of the raw material; Power transmission means for transmitting the rotational force of the first rotating body to the second rotating body; And a length adjusting means installed at a predetermined position of the first rotatable body to selectively adjust the length of the unmolded part of the material according to the use place.

1 is a front view showing the configuration of a conventional press punching device,

Figure 2 is a side view showing the configuration of a conventional press punching device,

3 is a plan view of a material in which a molding part and an unmolding part are molded by a conventional press punching device;

4 is a front view of a state in which a device for forming a non-molded portion of a material according to the present invention is mounted on a press punching device;

Figure 5 is an enlarged side view of the main portion of the apparatus for forming the unmolded portion of the material according to the present invention;

6 is an enlarged plan view of a main portion of an apparatus for forming a non-molded portion of a material according to the present invention;

7 is a perspective view showing the configuration of an apparatus for molding the unmolded part of the raw material according to the present invention;

8 is a plan view of a material in which the molded part and the unmolded part are molded by the press punching device according to the present invention.

Explanation of symbols on the main parts of the drawings

1: press 3: motor

6: pulley 11: ram

20: operation mode cam 30: fixed shaft

31: first roller 32: support plate

40: moving means 50: support

60: first rotating body 70: second rotating body

80: power transmission means 90: length adjustment means

Hereinafter, the configuration of an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. The press punching device according to the present invention is equipped with a device for molding the unmolded part of the material in the conventional press (1), the description of the configuration of the press (1) will be omitted.

Press punching device according to the present invention has an arc shape of the appropriate length on the inner surface of the pulley (6) rotated by the power transmission member (4) for transmitting the rotational force of the motor (3) as shown in Figs. The operation mode cam 20 is formed to have a fixed shaft 30 having a first roller 31 on one side to move the clouds along the outer circumference of the operation mode cam 20, and the fixed shaft The other side of the 30 is provided with a support plate 32 of a suitable size so as to interlock with the transfer means 40 to be described later to move the first roller 31 to the outer periphery of the operation mode cam 20.

The transfer means 40 may be configured in various forms, but as one embodiment of the conventional solenoid valve 42 was used. That is, the solenoid valve 42 is installed at a predetermined position of the support frame 2, and an actuating rod 46 having a second roller 44 at the front end of the solenoid valve 42 is connected to an electrical signal. Is installed to be moved by, the second roller 44 to press the support plate 32 of the fixed shaft 30 to move the first roller 31 of the fixed shaft 30 to the operation mode cam 20. do.

In addition, the support plate 32 is clouded with the second roller 44 when the first roller 31 of the fixed shaft 30 causes rotation while moving along the outer circumference of the operation mode cam 20. The rotation is smooth.

Here, the solenoid valve 42 is a ram for forming while moving the material (S) supplied at a constant pitch up and down through a pair of drive rollers (8, 9) disposed on the support frame (2) ( When the number of strokes of 11) reaches the preset setting value, power is applied and the state is turned on.

A support 50 having a first clutch bearing 52 is fixedly installed at one side of the support frame 2 on which the pulley 6 is installed, and a first rotating body 60 at the first clutch bearing 52. Is rotatably coupled, such a first rotating body 60 is to be rotated to have a predetermined angle by the moving distance of the first roller 31 is moved in the cloud along the operation mode cam (20).

In addition, a fixing member 64 having a through hole 62 is formed integrally with one side of the first rotatable body 60 so that the fixing shaft 30 is movable so as to be integrally formed. A return spring 66 is interposed between the 64 and the support plate 32 of the fixed shaft 30 so as to have an elastic force in itself. Here, the return spring 66 presses the support plate 32 toward the solenoid valve 42 by its own elastic force when the solenoid valve 42 is not in operation (Off), thereby pushing the first roller 31 to the operation mode cam. As the material S is supplied at a constant pitch through the pair of drive rollers 8 and 9, the ram 11 sequentially molds the molding part S3 as it is separated from the outer circumference of 20. .

In addition, at least one of the driving rollers 8 and 9 of the pair of driving rollers 9 is coupled to a second rotating body 70 having a second clutch bearing 72 interposed therebetween, the second Rotor 70 is rotated in the same direction as the supply direction of the raw material (S), which is a power transmission means 80 for transmitting the rotational force of the first rotating body 60 to the second rotating body (70) Is made by.

The power transmission means 80 is coupled to the first timing gear 82 on one side of the first rotating body 60, the second timing gear 84 is coupled to one side of the second rotating body (70). The timing belt 86 is wound around the outer circumferences of the first timing gears 82 and 84 to move in one direction along the endless track, and is driven by the rotation angle of the first rotating body 60. It is made to transmit the moving distance to the second rotating body 70 to rotate the drive roller (9).

Here, as the diameter of the second timing gear 84 is smaller than the diameter of the first timing gear 82, the rotation of the driving roller 9 coupled to the second rotating body 70 is the ram 11 The feed rate of the material (S) due to the greater than the rotation of the drive roller (9) supplied at a constant pitch for molding the molding portion (S3) to the material (S) during one stroke according to the high and high movement of the The faster the movement distance is secured, the movement distance of the material (S) is to be processed into the unmolded portion (S4) the ram 11 is not through the material (S).

On the other hand, the predetermined position of the first rotating body 60 is provided with a length adjusting means 90 to selectively adjust the length of the unmolded portion (S4) of the material (S) according to the use of the material (S).

The length adjusting means 90 is provided with a stopper 92 to have an appropriate length on one side of the support frame 2 corresponding to the rotation radius of the first rotating body 60, so as to correspond to the stopper 92 A bracket 94 having an adjusting member 96 is provided at a predetermined position of the first rotating body 60 to adjust the contact interval with the stopper 92 while moving up and down. Here, the adjusting member 96 may be configured in various ways, but preferably bolts are the best.

Next, the operation state of the press punching device of the present invention configured as described above will be described in detail.

First, in the case where the molding part S3 is to be molded into the material S, the rotational force of the motor 3 is transmitted to the pulley 6 by the power transmission member 4 as in the usual work process, and the shaft 5 ), The first operation of reciprocating rotational movement at a predetermined rotational angle in conjunction with the main shaft (7a) that is moved up and down while being in surface contact with the outer periphery of the first cam (7) fixed to the shaft (5) The pair of drive rollers 8 and 9 are rotated in one direction by the bar 7b to supply the unmolded material S at a constant pitch, and then to the second cam 10 fixed to the shaft 5. The ram 11 is lowered by the operating lever 10c which is interlocked with the moving shaft 10a moving up and down while being in surface contact along the outer circumference and moving up and down about the hinge shaft 10b. After shaping the molding unit (S3), the molding process while repeatedly performing the operation of raising the ram 11 by the expansion force of the elastic member (11a). Of course, the molding position of the ram 11 is moved in a zigzag pattern every one stroke according to the up / down movement of the ram 11, thereby forming the molding portion S3 of the material S into a lattice lattice shape.

As described above, the stroke number according to the up / down movement of the ram 11 for forming the molding part S3 to the raw material S supplied through the pair of driving rollers 8 and 9 is set to a preset value. When the power is applied to the solenoid belt 42 is reached when the operating rod 46 installed on one side presses the support plate 32 installed on the fixed shaft 30, which is the fixing member of the first rotating body (60) By pressing the elastic force of the restoring spring 66 interposed between the 64 and the support plate 32, the first roller 31 of the fixed shaft 30 is formed on the inner surface of the pulley 6 The cam is moved to a position corresponding to the bottom dead center of the outer circumference of the mode cam 20.

Here, the fixed shaft 30 is moved through the through hole 62 formed in the fixing member 64 of the first rotating body 60 rotatably coupled to the first clutch bearing 52 of the support 50. As the first roller 31 of the fixed shaft 30 is located at the bottom dead center of the operation mode cam 20 as the pulley 6 is rotated in accordance with the outer periphery of the operation mode cam 20 Will move to the point.

As described above, when the fixed shaft 30 moves while the first roller 31 moves along the outer circumference of the operation mode cam 20, the first of the fixing member 64 having the fixed shaft 30 interposed therebetween. The rotating body 60 rotates the first timing gear 82 coupled to one side of the first rotating body 60 by rotating at a predetermined angle around the first clutch bearing 52. Of course, the first timing gear 82 is rotated in one direction by the first clutch bearing 52 when the first rotating body 60 rotates.

When the first timing gear 82 is rotated in one direction, the timing belt 86 surrounding the outer circumference of the first timing gear 82 is also moved along the endless track, which is the pair of drive rollers 8, By rotating the second timing gear 84 of the second rotating body 70 coupled to one side of at least one of the driving rollers 9 in the same direction, the driving rollers 9 are rotated together. . Likewise, when the second rotating body 70 rotates, the second timing gear 84 is rotated in one direction by the second clutch bearing 72.

Here, as the diameter of the second timing gear 84 is smaller than the diameter of the first timing gear 82, the rotation of the driving roller 9 to which the second rotating body 70 is coupled increases. This is to increase the supply speed of the material (S) passing through the pair of drive rollers (8, 9) and at the same time ensures the moving distance of the material (S), the moving distance of such a material (S) is the ram (11) The unmolded part S4 which does not let this material S pass is formed.

On the other hand, the length of the unmolded portion (S4) of the material (S) by the length adjusting means 90 installed on the first rotating body 60 is selectively adjusted according to the use, which is installed on the support frame (2) The distance between the adjusting member 96 provided on the bracket 94 of the first rotating body 60 from the stopper 92 is changed upward and downward to change the rotation angle of the first rotating body 60 in the second time. While adjusting the rotation range of the entire 70 is to adjust the length of the unmolded portion (S4) to be molded in the material (S).

As the raw material S moves rapidly through the pair of driving rollers 8 and 9 as described above, after the unmolded part S4 having a predetermined length is formed on the raw material S, the solenoid valve 42 is turned off. (Off) while the first roller 31 is returned by its own elastic force of the return spring 66 from the outer circumference of the operation mode cam 20 formed in the pulley 6 and the ram 11 is moved up and down. By repeating the process of forming the molding unit S3 on the material S supplied through the pair of driving rollers 8 and 9 while starting the movement, the molding unit S3 and the subtle part of the material S are formed. The mold part S4 can be molded continuously.

As described above, the present invention provides a pair of strokes by operating the solenoid valve at the same time the stroke is reached according to the up / down movement of the ram for forming the molding part to the material supplied through the pair of driving rollers. As the material supplied through the driving roller is moved to a certain distance quickly, the unmolded part of the material is molded at the correct position, thus reducing the number of working processes when forming the material, thereby improving productivity and improving the product quality of the material. It will have the effect of mass-producing a good quality molded article.

In addition, by selectively adjusting the length of the unmolded portion according to the use of the material is to have the effect of molding the material of various products.

As described above, one embodiment of the present invention has been described, but the present invention is not limited thereto and may be changed within the scope of the claims.

Claims (4)

Support frame; A motor installed at one lower side of the support frame; A pulley having a shaft such that rotational force of the motor is transmitted by a power transmission member; The first operating bar and the first operating bar for reciprocating rotation at an appropriate rotation angle in conjunction with the main axis moving up and down while the surface contact along the outer periphery of the first cam fixed to a predetermined position of the shaft and rotates on one side of the first operating bar A pair of drive rollers which are coupled to each other and supply unmolded material at a constant pitch during reciprocating rotation of the first operation bar; Up and down by the operating lever and the operating lever is moved up and down around the hinge axis in conjunction with the moving shaft is moved up and down while the surface contact along the outer periphery of the second cam fixed to the central both sides of the shaft In the press consisting of; a ram for molding the material supplied by the pair of drive rollers, An operation mode cam formed to have an arc shape of an appropriate length on an inner surface of the pulley; A fixed shaft having a first roller on one side to move the cloud along the outer circumference of the operation mode cam, and a support plate having a proper size formed on the other side thereof; Transfer means for moving the first roller interposed in the fixed shaft to an operation mode cam by an electrical signal; A support having one side fixed to a side wall of the support frame and having a first clutch bearing at a predetermined position on the other side thereof; It is rotatably coupled to the first clutch bearing, the fixed shaft is rotated at a predetermined angle by the first roller which is rolled along the operation mode cam while having a through hole so that the fixed shaft is movably fitted on one side thereof. A first rotating body in which the member is integrally formed; It is interposed between the fixing member of the first rotating body and the support plate of the fixed shaft, when the conveying means is not in operation to return the first roller installed on the fixed shaft by pressing the support plate by its own elastic force from the operation mode cam spring; A second rotating body having a second clutch bearing interposed therebetween to be coupled to one side of at least one driving roller of the pair of driving rollers so as to rotate in the same direction as the supply direction of the raw material; Power transmission means for transmitting the rotational force of the first rotating body to the second rotating body; And And a length adjusting means installed at a predetermined position of the first rotating body to selectively adjust the length of the unmolded part of the material according to the use place. The method of claim 1, wherein the transfer means A solenoid valve actuated by an electrical signal is installed on the support frame when the stroke of the ram for forming process while moving the material supplied at a constant pitch up and down through the pair of drive rollers reaches a set value. One side of the valve by pressing the support plate of the fixed shaft to move the first roller of the fixed shaft to the operation mode cam, characterized in that consisting of the operating rod having a second roller at the tip to achieve a smooth movement of the support plate when the fixing member is rotated Press punching device. The method of claim 1, wherein the power transmission means A first timing gear integrally coupled to the first rotating body; A second timing gear integrally coupled to the second rotating body to have a diameter smaller than the diameter of the first timing gear; And a timing belt wound around the outer circumference of the first timing gear and moving in one direction along the endless track to transmit the movement distance due to the rotation angle of the first rotating body to the second rotating body to rotate the driving roller. Press punching device comprising a. The method of claim 1, wherein the length adjusting means A stopper is installed on one side of the support frame corresponding to the rotation radius of the first rotating body, and a bracket is installed at a predetermined position of the first rotating body so as to correspond to the stopper, and at the predetermined position of the bracket The adjusting member is coupled to move up and down so as to adjust the contact interval with the stopper, so that the length of the unformed part of the material supplied through the pair of driving rollers is adjusted to the place where the material is used by adjusting the rotation radius of the first rotating body. Press punching device, characterized in that to be selectively adjusted according to.