KR20160119983A - Apparatus of forming press - Google Patents

Abstract

The purpose of the present invention is to provide a press forming device constructed to form a material by lowering a press using a screw that rotates by power of a motor in a mechanical way. In order to achieve this purpose, the press forming device, which combines upper and lower molds, and injects a raw material into the upper and lower molds for formation, comprises: a base on which the lower mold is put; a pair of support frames put on the base; a fixing rack fixed and installed on the top of the support frame; a lead screw which is installed between the support frames in a vertically standing state, and rotates by receiving power of a motor; a split nut which is coupled to an external diameter of the lead screw in a screw type, and vertically moves in accordance with rotation of the lead screw; a lifting rack which is combined with the split nut, and vertically moves by riding the support frames in a state of being supported by the support frames; a press which is installed on the bottom of the lifting rack, and combines the upper and lower molds in accordance with descending motion of the lifting rack; a cup cylinder which is installed between the lifting rack and the fixing rack, shrinks in accordance with continuous descending motion of the lifting rack after the press combines the upper and lower molds, and prevents transmission of the descending pressure of the lifting rack to the press; and an injection port which is positioned between buffering guides, and is inserted into a hole of the press in accordance with the descending motion of the lifting rack to inject a raw material into the upper and lower molds.

Description

[0001] APPARATUS OF FORMING PRESS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press forming apparatus, and more particularly, to a press forming apparatus in which a press is lowered by using a screw rotated by a motor in a mechanical manner so as to form an upper and a lower mold.

A generally known press apparatus has been mainly used in a hydraulic press apparatus.

An advantage of such a hydraulic press apparatus is that the construction of the pressure generating apparatus is simple, the adjustment of the press-out pressure is relatively easy, and the stroke of the ram of the press apparatus can be freely adjusted within the stroke range of the hydraulic cylinder to be used.

However, in the conventional hydraulic press apparatus, excessive noise is generated due to opening / closing operation sound of a valve, expansion sound of a valve and other sounds generated by collision of stoppers of upper and lower molds when the material is hit under high pressure, In particular, in order to perform the punching operation by the up-and-down movement of the hydraulic cylinder, the operation speed of the pump, the valve opening / closing operation, the passage of the pipe, the ram of the hydraulic cylinder, It is limited to about 60 times per minute. Therefore, it fails to meet the demands of the industry due to recent mass production, and it has become a factor of inhibiting productivity.

Document 1: Korean Patent Registration No. 10-1402138

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to provide a press forming apparatus in which a press is lowered by using a screw rotated by a motor power in a mechanical manner, .

According to another aspect of the present invention, there is provided a method for manufacturing a semiconductor device, comprising the steps of: moving a working rod in a horizontal direction before and after a lowering of a platform without using a driving cylinder; selectively opening / And to provide a press molding apparatus capable of automatic injection.

According to another aspect of the present invention, there is provided a press molding apparatus for molding an upper and a lower mold and injecting a raw material into the merged upper and lower molds to form a base, A lead screw fixedly mounted on an upper end of the support frame, a lead screw vertically erected between the support frames and rotated by receiving power of the motor, A lower portion of the elevator bar, which is coupled to the lower portion of the elevator bar, and which is coupled to the upper portion of the elevator bar, A press for assembling the upper and lower molds according to a lowering operation of the platform, A cup cylinder which is installed between the upper and lower molds so that the press is reduced in accordance with the continuous lowering operation of the platform after the upper and lower molds are assembled and prevents the lowering pressure of the platform from being transmitted to the press, And an injection port inserted into the hole of the press in accordance with the lowering motion of the platform to inject the raw material into the upper and lower molds.

A first flow path formed in the platform and passing the raw material supplied from the first supply means, a second flow path connected to the first flow path and the connection flow path, A vertical flow passage perpendicularly connected to the tip of the second flow passage and discharging the raw material passing through the second flow passage by the operation of the secondary supply means to the injection port, An operating rod inserted in the platform, an operating rod formed at a tip of the operating rod and sandwiched between the guides provided in the fixing rod, a sloped hole formed in the center of the operating rod and inclined in an oblique direction, And the operating rod is moved forward and backward through the inclination angle of the inclined hole in accordance with the upward and downward movement of the platform So that the first and second connection holes are selectively communicated with the vertical hole and the connection passage, respectively.

According to the present invention, the upper and lower molds are assembled by using a screw rotating by a motor power in a mechanical manner, and the material is molded so that more accurate press work can be performed without generating noises.

In addition, it is possible to automatically inject the raw material into the upper and lower molds by selectively opening and closing the passage through which the raw material is passed, by moving the operating rod in the horizontal direction before and after the lifting bar descends without using a separate driving cylinder Effect.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional view showing the entire configuration of a press forming apparatus according to a preferred embodiment of the present invention. Fig.
Fig. 2 is a side cross-sectional view of the press forming apparatus shown in Fig. 1. Fig.
3 is a front sectional view of the press-forming apparatus shown in Fig. 2; Fig.
FIGS. 4 to 7 sequentially illustrate the operation of the press-forming apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional view showing the entire configuration of a press forming apparatus according to a preferred embodiment of the present invention, and Fig. 2 is a view cut along the side surface of Fig.

1 and 2, the press forming apparatus 100 of the present invention includes a base 10, a pair of support frames 12 installed vertically on the base 10, A pedestal 20 which is vertically and downwardly moved by the power of the motor 32 in the state of being supported by the support frame 12 by the support frame 12; ).

The connection structure between the platform 20 and the motor 32 is such that a drive pulley 34 is coupled to the shaft of the motor 32 and a driven pulley 36 is engaged with the drive pulley 34, A split nut 40 is fixed to the platform 20 at an outer diameter of the lead screw 38. The split nut 40 is screwed to the pulley 36, And the elevating table 20 is coupled to the leadscrew 38 in a process that the leadscrew 38 is rotated by the power of the motor 32, 38 in the vertical direction through the split nuts 40 that move along the thread formed on the outer diameter of the upper and lower nuts 38.

That is, in the press forming apparatus 100 of the present invention, the platform 20 descends through the lead screw 38 which is rotated by the motor 32 in a mechanical manner, not by hydraulic pressure, and the upper and lower molds 50 and 52 ).

The press 30 is installed on the lower die 52 mounted on the platform 10 and having an upper mold 50 installed on the lower end of the lower platform 20 and lowered in accordance with the operation of the platform 20, .

An LM block 44 is installed on one side of the press 30 and an LM guide rail 42 for guiding the movement of the LM block 44 is installed on one side of the support frame 12, To guide the upward and downward movements of the sheet material.

Meanwhile, a raw material injection means for injecting a raw material into the upper and lower molds 50 and 52 is further provided inside the press 30.

After the press 30 is lowered by the initial lowering operation of the platform 20 and the upper and lower dies 50 and 52 are combined with each other, the press 30 presses the upper mold 50, The raw material is injected into the upper and lower molds 50, 52 in accordance with the operation in which the platform 20 is continuously lowered.

The raw material injecting means includes a primary supplying means 60 provided at the rear of the platform 20 for supplying raw materials and a raw material supplying means 60 provided inside the elevating base 20 for passing the raw material supplied from the primary supplying means 60 A second flow path 66 connected to the first flow path 62 by a connection flow path 64 and a second flow path 66 provided behind the platform 20 and supplied from the second flow path 66, (68) for supplying the raw material to the second flow path (66) in a state where the raw material is stored, and a second supply path (68) connected to the second flow path A vertical channel 70 for discharging a raw material to be supplied and a vertical channel 70 installed at a lower end of the platform 20 and connected to the vertical channel 70 to descend in accordance with a descending movement of the platform 20, (30) in the state of being inserted through the vertical flow path (70) by the operation of the press Phase is haphyeong each other, and the mold (50. 52) is configured to include an injection port 92 for injection into the interior.

The raw material injecting means is a process in which the press 30 is first lowered by the lowering operation of the platform 20 and the upper and lower dies 50 and 52 are combined and then the platform 20 is further lowered The injection port 92 is connected to the upper and lower molds 50 and 52 through the vertical flow path 70 through the first and second supply means 60 and 68 while being inserted into the hole of the press 30 To be molded.

The raw material injecting means is further provided with a connecting flow path 64 for connecting the first and second flow paths 62 and 66 and a flow path control means for controlling the flow of the raw material by opening and closing the vertical flow path 70 .

The channel control means includes a fixing table 94 positioned at the upper end of the platform 20 and fixed to the support frame 12 for guiding the platform 20 up and down, A vertical channel 70 and a connection channel 64 formed in the platform 20 in a state of being horizontally positioned between the cup cylinders 96; The first and second connection holes 82 and 84 are horizontally reciprocated in accordance with the ascending and descending operations of the platform 20. The first and second connection holes 82 and 84 are inserted into the first and second connection holes 82 and 84, 84 to the vertical flow path 70 and the connection flow path 64, respectively.

The operation rod 80 is horizontally reciprocatingly moved by the operation rod 80 integrally formed with an operation rod 86 having oblique elongated holes 88 formed on both ends thereof, The pin 90 passing through the guide 98 passes through the inclined elongated hole 88 formed in the operation table 86 while being sandwiched between the guide 98 of the elevating table 20 In the course of performing the ascending and descending operations, it is possible to perform the horizontal and vertical movement in the forward and backward directions through the inclination angle of the inclined long hole 88.

When the operation rod 80 is moved horizontally forward, the second connection hole 82 of the holes formed in the outer diameter of the operation rod 80 connects the first and second flow paths 62 and 66 The first connection hole 84 of the operation rod 80 communicates with the vertical flow passage 70 when the operation rod 80 horizontally moves backward.

Hereinafter, the operation of the press forming apparatus according to the present invention will be described with reference to FIGS. 4 to 7 attached hereto.

4, when power is applied to the motor 32, the driving pulley 34 coupled to the shaft of the motor 32 rotates to rotate the driven pulley 36, The lead screw 38 coupled to the lead screw 36 is rotated to lower the split nut 40 threadedly coupled to the outer diameter of the lead screw 38, The fixed platform 20 is moved vertically downward by receiving the power of the motor 32 so that the press can assemble the upper and lower dies according to the lowering motion of the platform.

That is, when the press is assembled with the upper and lower dies, the control unit (not shown) drives the primary supply unit 60, which is the raw material supply unit, as shown in FIG. 5 to form the first flow path 62, The raw material is supplied to the secondary supply means 68 through the second flow path 66 connected to the first flow path 62 and the connection flow path 64.

Next, as shown in FIG. 6, while the press 30 is maintained in the pressurized state, the platform 20 continues to perform the descent operation by the power of the motor 32. FIG.

That is, when the platform 20 descends, the cup cylinder 96 installed between the press 30 and the platform 94 is reduced, and the pressure due to the descent of the platform 20 is transmitted to the press 30 And at the same time, the injection port 92 located between the cup cylinders 96 is lowered and inserted into the hole of the press 30.

At this time, the raw material supply means and the flow path control means provided in the platform 20 are automatically operated while the platform 20 descends to supply the raw material to the injection port 92.

7, when the platform 20 continuously performs the descent operation by the power of the motor 32, the operation rod 80, which is the flow control means, horizontally moves backward, The operating rod 80 horizontally moves rearward in accordance with the vertical descent of the platform 20 through the inclined hole 88 of the operating rod 86 formed at the tip of the operating rod 80. [

That is, by the movement of the operating rod 80, the connecting flow path 64 connecting the first and second flow paths 62 and 66 is closed and the first connecting hole 82 of the operating rod 80 is connected to the vertical flow path 62. [ The second supply means 68 is driven to supply the raw material to the vertical flow path 70 through the second flow path 66 and is connected to the vertical flow path 70, The injection port 92 having the inlet port 92 is injected into the upper and lower molds 50 and 52 while the raw material supplied from the vertical flow path 70 is inserted into the hole of the press 30 by the lowering operation of the platform 20, .

10: Base 12: Support frame
14: lower die 16: platform
18: platform support plate 20: LM guide rail
22: LM block 30: motor
32: drive pulley 34: driven pulley
36: lead screw 40: cutting means
42: Rack gear 44: Pinion
46: Axis 48: Cutter
50: eccentric shaft 60: fixed plate
62: guide slot 70: spindle

Claims (2)

The press molding apparatus for molding the upper and lower dies (50, 52) by injecting the raw material into the combined upper and lower dies (50, 52)
A base 10 on which the lower mold 52 is lifted;
A pair of support frames (12) mounted on the base (10);
A fixing table 94 fixedly mounted on the upper end of the supporting frame 12;
A lead screw 38 vertically installed between the support frames 12 and rotated by receiving the power of the motor 32;
Split nuts (40) screwed on the outer diameter of the lead screw (38) and moving up and down in accordance with rotation of the lead screw (38);
A platform (20) coupled to the split nut (40) and moving up and down vertically by the support frame (12) while being supported by the support frame (12);
A press 30 installed at a lower end of the platform 20 to join the upper and lower molds 50 and 52 according to a descending movement of the platform 20;
The press 30 is installed between the platform 20 and the fixing table 94 and is reduced in accordance with the continuous lowering operation of the platform 20 after the upper and lower molds 50 and 52 are assembled, A cup cylinder 96 for preventing the descending pressure of the platform 20 from being transmitted to the press 30;
The injection port 92 is inserted into the hole of the press 30 in accordance with the descending movement of the platform 20 in a state where the platform is installed at the lower end of the platform 20 and the raw material is injected into the upper and lower molds 50 and 52 ) Of the press-molding machine.
The method according to claim 1,
A first flow path 62 formed in the platform 20 for passing a raw material supplied from the primary supply means 60;
A second flow path (66) connected to the first flow path (62) through a connection flow path (64) and passing the raw material supplied through the one flow path (62) to the second supply means (68);
A vertical flow path 70 perpendicularly connected to the tip of the second flow path 66 and discharging the raw material passing through the second flow path 66 to the injection port 92 by the operation of the secondary supply means 68, ;
An operating rod (80) inserted into the platform (20) while crossing the vertical channel (70) and the connection channel (64);
An operating rod 86 formed at the tip of the operating rod 80 and sandwiched between the guides 98 provided on the fixed rod 94;
And an inclined hole 88 formed obliquely in an oblique direction to the operation table 86 and engaged with the guide 98 and the pin 90. The operation rod 80 is supported by the upper and lower portions of the platform 20, The first and second connection holes 82 and 84 are horizontally moved forward and backward through the inclination angle of the inclined hole 88 in accordance with the movement operation and the first and second connection holes 82 and 84 are connected to the vertical hole 70 and the connection passage 64 And the first and second molds are selectively connected to each other.

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