TW201639697A - Adjustment structure of height-adjustable pressing strip for assisting plate drawing - Google Patents

Abstract

Disclosed is an adjustment structure of a height-adjustable pressing strip for assisting plate drawings, which comprises a fixed seat, a pressing plate, a press head, a plurality of guide posts, a plurality of elastic elements, and a movable mold seat, and is characterized in that, in each of two side portions of the pressing plate, a positioning trough is formed and a pressing device arranged in the positioning trough. By adjusting a height of a pressing strip of the pressing device, a restrain force that the pressing plate applies to the plate material can be varied to prevent the plate material from wrinkling, cracking, and wearing during drawing and also prevent excessively thinning and springing back of the plate material during a drawing and shaping operation. Further, adjustment can be made on the height of the pressing strip according to the property of the plate material in order to achieve a purpose of shortening mold trial cycles. Further, when the pressing strip gets damaged due to drawing operations, an operation of removal and replacement can be conducted in order to eliminate a maintenance operation for repairing the pressing strip so as to achieve purposes of extending lifespan of the mold and reducing expenditure and cost.

Description

Variable height stamping strip assists in the adjustment structure of thin plate extension

The invention relates to an adjustment structure for a variable height pressure bar to assist in the extension of a thin plate, in particular to an operation of adjusting the height of the pressure bar on the pressure plate and disassembling and replacing the pressure bar. A unique and innovative adjustable strip height for thin sheet extension applications.

According to the development of the traditional stamping and drawing die, the production process often encounters the correct design of the mold, and it is necessary to actually open the mold to test the mold before the difficulty of the result is known. The success or failure of the mold material is extremely related to the design of the mold, and it depends on the difficulty of material flow during material extension. When the pressing device is used, if the pressing force is too large, the material does not easily flow in the cavity, and the material of the material in the cavity is insufficient due to the supply, and the punch continues to extend the material in the cavity, and the die plate is easy. Cracking occurs; however, if the pressing force is insufficient, the mold material is prone to wrinkles; both cases are undesirable phenomena of the mold product and must be avoided.

However, the manufacturing cost of the mold itself has been fixed as early as the design stage. Once there is a design flaw, it must be manpowered to repair the mold, but it is quite time consuming to repair the mold, and it is relatively laborious for the operator. The staff must continually correct the mold to achieve acceptable product accuracy and quality, often resulting in a long mold cycle This is difficult to master, mold delivery is difficult to determine and can not be applied to improve the countermeasures, etc., so the mold industry feels hard work and pressure.

Next, the structure of the conventional extension die will be described in the drawings. Referring to FIG. 1 , FIG. 2 and FIG. 3 , the conventional extension die 1 is composed of a fixing base 101 , a pressing plate 102 , and a punching. The head 103, the plurality of guide posts 104, the plurality of elastic members 105, and a movable mold base 106 are formed; the conventional extension die 1 has a die plate 102 and a pressure strip 1022 on the pressure plate 102 integrally formed. The operation mode is to place the sheet 12 on the fixing base 101, and then drive the movable mold base 106 and the punch 103 and the pressure plate 102 which are disposed on the movable mold base 106 by using a punching device (not shown). Moving to the fixing base 101, the pressing strip 1022 of the pressing plate 102 first contacts the sheet 12 on the fixing base 101, and the two ends of the sheet 12 are fixed to the pressing material of the fixing base 101 by the pressing strip 1022. After the groove 1012 is continuously driven downward, the punch 103 on the movable mold base 106 is inserted through the opening 1021 of the die plate 102, and the sheet 12 is punched into the forming groove 1011 of the fixing base 101, so that The sheet 12 is plastically deformed to complete the purpose of the extension processing.

However, since the conventional press plate cannot accurately predict the flow state of the material in the forming groove, problems such as cracking, wrinkles, rebound and thinning rate cannot be predicted and suppressed in advance, so it is only possible to rely on the accumulation of experience. The height position of the pressure strip is predicted, and the method of opening the mold of the conventional extension mold is easy to cause the mold opening period to be elongated and the frequent mold repair and labor and material resources.

Therefore, how can we effectively improve the shortcomings of the knowledge and adjust it properly? The optimum height position of the pressure bar makes it possible to give the pressure plate the best restraining force for the sheet material, which is a subject of concern to the stamping die industry. In view of this, the inventor of the case has developed research and development experience in related fields. Investigate the above-mentioned shortcomings and actively seek solutions according to the above requirements. After a long period of hard work and multiple tests, the present invention has finally been completed.

The above-mentioned shortcomings of the conventional mold opening process still have the above-mentioned shortcomings, and the present inventors have focused on this and have tried their best to collect relevant documents and repeatedly test and test and produce them. In order to solve the shortcomings of the use and enhance its unprecedented progress and practicality.

Accordingly, the main object of the present invention is to provide a variable height embossing strip assisting an adjustment structure of a thin plate extension, which mainly adjusts the height of the embossing bar by a pressing device to change the embossing plate to impart a sheet material. The restraining force enables the sheet to reach a sufficient amount of plastic deformation under sufficient tension, thereby obtaining better molding precision and rigidity, and at the same time improving excessive rebound, slack and wave pattern of the sheet material due to insufficient plastic deformation. The purpose of the problem, especially if the pressure material is not properly designed, the device can be quickly replaced by the device to provide a suitable pressing force.

A secondary object of the present invention is to provide a variable height stamping strip assisting the adjustment structure of the sheet metal extension, and the pressing device can be arbitrarily replaced on the pressure plate to omit the operation of repairing the pressure strip To achieve the purpose of increasing the life of the mold and saving costs.

1‧‧‧Extension mould

101‧‧‧ fixed seat

1011‧‧‧ forming trough

1012‧‧‧pressing trough

102‧‧‧Billing plate

1021‧‧‧ openings

1022‧‧‧Pressure strip

103‧‧‧ Punch

104‧‧‧ Guide column

105‧‧‧Flexible components

106‧‧‧Moving mold base

2‧‧‧ Fixed seat

201‧‧‧ forming trough

202‧‧‧pressing trough

3‧‧‧pressing plate

301‧‧‧ openings

302‧‧‧ placement slot

4‧‧‧ Punch

5‧‧‧ Guide column

6‧‧‧Flexible components

7‧‧‧Moving mold base

8‧‧‧Brushing device

801‧‧‧shims

802‧‧‧Pressure strip

803‧‧‧ bolt

9‧‧‧Brushing device

901‧‧‧Pressure strip

902‧‧‧Flexible components

903‧‧‧ bolt

10‧‧‧ cover

11‧‧‧Brushing device

111‧‧‧Pressure strip

1111‧‧‧Limited Department

112‧‧‧Flexible components

113‧‧‧ bolt

12‧‧‧ Sheets

Figure 1 is a schematic cross-sectional view of a conventional extension die.

Figure 2: Schematic diagram of a conventional compression strip suppression sheet (1).

Figure 3: Schematic diagram of the conventional compression strip suppression sheet (2).

Figure 4 is a perspective view of the present invention.

Figure 5 is a schematic cross-sectional view of the present invention.

Figure 6 is an enlarged schematic view of the press device of the present invention.

Figure 7 is a schematic view of the press strip suppression sheet of the present invention (1).

Figure 8 is a schematic view of the pressed strip suppression sheet of the present invention (2).

Figure 9 is a schematic cross-sectional view showing another embodiment of the present invention.

Figure 10 is an enlarged schematic view of a press device according to another embodiment of the present invention.

Figure 11 is a schematic view showing the adjustment of the press device according to another embodiment of the present invention (1).

Fig. 12 is a schematic view showing the adjustment of the press device according to another embodiment of the present invention (2).

Figure 13 is a schematic cross-sectional view showing a second embodiment of the present invention.

Figure 14 is an enlarged schematic view of a press device according to a second embodiment of the present invention.

Figure 15 is a schematic view showing the second embodiment of the present invention in which the binder strip is limited to the placement groove.

Figure 16 is a diagram showing the relationship between the height of the pressure bar and the suppression force of the present invention.

For a more detailed and detailed understanding of the purpose of the invention, the <RTIgt;

First, please refer to FIG. 4, FIG. 5 and FIG. 6. The present invention provides a variable height embossing strip assisting an adjustment structure of a thin plate extension, which comprises a fixing base 2, a pressing plate 3, and a The punch 4, the plurality of guide posts 5, the plurality of elastic members 6, and the movable mold base 7 are formed. A forming groove 201 for forming a sheet material is disposed at a center of the top end of the fixing base 2, and a pressing groove 202 for suppressing the sheet material by the pressing strip is disposed on both sides of the forming groove 201, and the fixing seat 2 is borrowed The pressure plate 3 and the movable mold base 7 are sequentially disposed by the plurality of guide columns 5, and the pressure plate 3 and the movable mold base 7 can be moved by the upper and lower movements of the guide post 5 above the fixed seat 2; At the center of the bottom end of the die holder 7, a punch 4 for punching a sheet material is disposed; an opening 301 through which the punch 4 is inserted is formed in the center of the die plate 3; the two ends of the plurality of elastic members 6 are respectively disposed at the movable end The die holder 7 and the pressure plate 3 (shown in FIG. 7) are adjacent to the periphery of the punch 4; the present invention is mainly characterized in that the pressure plate 3 is provided with a placement groove 302 on each side thereof and a pressing device 8 disposed on the placing groove 302, wherein the pressing device 8 (shown in FIG. 6) comprises a gasket 801, a pressing bar 802 and a plurality of bolts 803; the gasket The 801 is disposed in the placement slot 302. The gasket 801 is provided with the pressing strip 802. The pressing strip 802 corresponds to the pressing groove 202 of the fixing base 2, and the pressing strip 802 is bottom. We based on the receiving recess 302 protruding outside; lines of the plurality of bolts 803 and 801 nip the shim lock bar 802 provided on the pressure plate 3.

Referring to FIGS. 7 and 8 , before the operation, the plastically deformed sheet 12 can be preliminarily placed on the fixing base 2, and the gasket 801 of the pressing device 8 is set to an appropriate height according to the characteristics of the sheet material 12. (H), making the strip 802 The bottom end of the positioning groove can be provided with an optimal suppression height (h). During operation, the pressing plate 3, the movable mold base 7 and the connection can be driven by a stamping die (not shown). The punch 4 on the die holder 7 moves toward the fixed seat 2, and during the moving process, the pressing bar 802 of the pressing device 8 is first brought into contact with the sheet 12, and then continues to drive the pressing strip of the pressing device 8. The 802 presses and fixes the sheet 12 into the pressing groove 202 of the fixing base 2. When the pressing strip 802 presses the sheet 12 into the pressing groove 202, the pad provided on the pressing strip 802 can be utilized. The sheet 801 is used to buffer the pressing force of the pressing strip 802. When the pressing strip 802 presses the sheet 12 into the pressing groove 202 of the fixing base 2, the bottom end of the pressing plate 3 also abuts against the sheet 12 And then continuously driving the punch 4 on the movable mold base 7 through the opening 301 on the pressure plate 3, and the elastic compressive force of the elastic member 6 provided between the pressure plate 3 and the movable mold base 7 The pressure plate 3 is fixedly pressed onto the sheet material 12, and finally the punch 4 presses the sheet material 12 into the forming groove 201 of the fixing base 2 to complete the extension processing of the sheet material 12; and when the operator pre-replaces Pressure When the device 8 is installed, the bolt 803 of the pressing device 8 can be unscrewed, and then the gasket 801 and the pressing bar 802 can be taken out to complete the replacement operation.

From the above, it is known that the adjustable setting of the pad 801 of the pressing device 8 and the pressing bar 802 can change the restraining force of the pressing plate 3 to the sheet 12, so that the sheet 12 is under sufficient tension. Achieve sufficient plastic deformation, and obtain better modeling accuracy and rigidity to reduce the excessive rebound, slack and wave pattern of the sheet material caused by insufficient plastic deformation. When the operator finds the pressing material of the pressing device When the strip is damaged due to the extension processing, it may precede the pressing device 8 The disassembly and replacement operations are performed to omit the maintenance work of the repairing bar 802 to achieve the environmental benefits of reusing the product by increasing the service life of the mold and saving the cost.

9 and FIG. 1( ) are schematic views of a press device 9 according to another embodiment of the present invention. The integral member of the present embodiment is substantially the same as the original embodiment, and the main difference is that the press device 9 includes a pressure. a strip 901, an elastic member 902 and a plurality of bolts 903; the strip 901 is disposed in the placing groove 302, and the pressing strip 901 corresponds to the pressing groove 202 of the fixing base 2, the pressing strip The bottom end of the 901 is protruded from the outside of the placing groove 302; the two ends of the elastic member 902 respectively abut against the placing groove 302 and above the pressing bar 901; the plurality of bolts 903 lock the pressing bar 901 On the pressure plate 3.

For the adjustment method of the other embodiment of the present invention, as shown in FIG. 11 and FIG. 12, the pressing device 9 is adjusted by using the rotating bolt 903, so that the pressure bar 901 can be corrected above and below the height. When the bolt 903 is rotated clockwise, the pressure bar 901 is retracted upward into the placement groove 302 of the pressure plate 3, that is, the height (h1) of the bottom end of the pressure bar 901 is reduced (as shown in FIG. 11), and vice versa. When the hour hand rotates the bolt 903, the pressing strip is pushed downwards out of the placing groove 302 of the pressing plate 3, that is, the height (h2) of the bottom end of the pressing bar 901 is increased (as shown in Fig. 12). The purpose of adjusting the pressing strip is simple and quick; and the pressing device 9 can be used as a structure which can be easily disassembled and assembled by the pressing device 9 due to different molding requirements of the product, and the bolt 903 of the pressing device 9 After unscrewing, the elastic element 902 of the appropriate spring constant can be replaced on the pressure plate 3 to make the pressure The material plate 3 and the pressing device 9 achieve the purpose of imparting the best restraining force to the sheet during the stretching process, and the operation purpose of facilitating the user to disassemble and replace.

13 and FIG. 14 are schematic views of a press device 11 according to a second embodiment of the present invention. The integral member of the present embodiment is substantially the same as the original embodiment, and the main difference is that the pressure plate 3 is provided with a cover. 10 and the two sides are respectively provided with a placing groove 302 and a pressing device 11 disposed on the placing groove 302. The pressing device 11 comprises a pressing strip 111, an elastic member 112 and a plurality of bolts. The pressing strip 111 is disposed in the placing groove 302 and corresponding to the pressing groove 202 of the fixing base 2, and a limiting portion 1111 is protruded from the end edge of the top end of the pressing strip 111. The bottom end of the strip 111 is protruded from the outside of the placing groove 302; the two ends of the elastic member 112 are respectively respectively pressed against the lower portion of the cover body 10 and the limiting portion 1111 of the pressing strip 111; the plurality of bolts 113 are the cover body 10 and the pressing strip 111 are locked on the pressure plate 3. The main purpose of the present embodiment is to provide the limiting portion 1111 of the pressing strip 111, so that the pressing strip 111 can limit the top end of the pressing strip 111 to the placing groove 302 when the height is adjusted (as shown in Fig. 15). Then, by rotating the bolt 113 and then using the elastic force of the elastic member 112, the pressure bar 111 can be adjusted in height, and the height of the adjustable strip 111 can be adjusted to change the weight of the pressing plate 3 to the sheet 12. In addition, the operator can also use the cover body 10 and the pressing device 11 on the pressure plate 3 as a detachable and assembled structure, so as to facilitate the user to disassemble and replace the operation.

In summary, the present invention mainly uses the pressure plate to set the square The user presses and adjusts the pressing device to adjust the pressure bar in the pressing device to an appropriate height, which can be known according to the inventor's experimental data (as shown in Fig. 16) when the pressing bar is along with the height (h) When increasing, the restraining force for restricting the flow of the sheet is gradually increased, and vice versa. When the height of the strip is adjusted, the sheet can be appropriately restrained, thereby shortening the mold production cycle, and Get a highly efficient mold opening process.

In summary, the application structure of the variable height pressure bar auxiliary sheet extension of the present invention is designed and researched by the inventor of the present invention, which not only has practical effects, simple structure, simple use, but also conforms to the patent for patent law. The requirements, 爰 提出 提出 提出 提出 提出 提出 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。

However, the above description of the preferred embodiments of the present invention is not intended to limit the scope of the invention, and the equivalent structural changes of the present invention and the scope of the patent application are all included. Within the scope of the present invention, it is combined with Chen Ming.

2‧‧‧ Fixed seat

201‧‧‧ forming trough

202‧‧‧pressing trough

3‧‧‧pressing plate

301‧‧‧ openings

302‧‧‧ placement slot

4‧‧‧ Punch

5‧‧‧ Guide column

7‧‧‧Moving mold base

Claims (3)

A variable height embossing strip assisting an adjustment structure of a thin plate extension, comprising: a fixing seat, a pressing plate, a punch, a plurality of guiding columns, a plurality of elastic members, and a movable mold base; wherein A forming groove is arranged in the center of the top end of the fixing seat, and a pressing groove is arranged on both sides of the forming groove. The fixing seat is provided with a pressing plate and a movable mold base in sequence, and is pressed by a plurality of guiding columns. The material plate and the movable mold base can be punched and moved upwards and above the fixed seat; a punch is arranged at the center of the bottom end of the movable mold base; and an opening for the punch to penetrate is formed at the center of the pressure material plate; The two ends of the elastic member are respectively disposed on the movable mold base and the pressure plate, and adjacent to the periphery of the punch; and the utility model is characterized in that: the pressure material board is provided with a placement groove on both sides of the pressure material board and a pressing device disposed on the placing groove; a pressing device comprising a gasket, a pressing strip and a plurality of bolts, wherein the gasket is disposed in the placing groove, and the gasket is attached The pressure strip is arranged, and the pressure strip corresponds to the pressure of the fixed seat The bottom end of the pressure strip is convexly disposed outside the placement groove; the bolt is used to lock the gasket and the pressure strip on the pressure plate; by the above structure, the height of the gasket can be used to adjust The height of the protruding end of the pressure strip can be adjusted to increase the height of the pressure strip to change the restraining force of the pressure plate to the sheet material. The pressure strip and the gasket can be assembled and disassembled by bolts. It is convenient for the purpose of replacement operation. A variable height embossing strip assisting an adjustment structure of a thin plate extension, comprising: a fixing seat, a pressing plate, a punch, a plurality of guiding columns, a plurality of elastic members, and a movable mold base; wherein A forming groove is arranged in the center of the top end of the fixing seat, and a pressing groove is arranged on both sides of the forming groove. The fixing seat is provided with a pressing plate and a movable mold base in sequence, and is pressed by a plurality of guiding columns. The material plate and the movable mold base can be punched and moved upwards and above the fixed seat; the punch is provided at the center of the bottom end of the movable mold base; and a punching hole for the punch is formed in the center of the pressure material plate; The two ends of the plurality of elastic members are respectively disposed on the movable mold base and the pressure plate, and adjacent to the periphery of the punch; and the utility model is characterized in that: the pressure material board is provided with a placing groove on each side of the pressure material board And a pressing device disposed on the placing groove; the pressing device comprises a pressing strip, an elastic member and a plurality of bolts, wherein the pressing strip is disposed in the placing groove and corresponding On the press groove of the fixed seat, and the bottom end of the pressure strip The two ends of the elastic element are respectively disposed in the placement groove and above the pressure strip, and the pressure strip is locked on the pressure plate by the bolt system; By rotating the bolt and then using the elastic force of the elastic member to adjust the height of the pressure bar to adjust the height of the pressure bar to change the inhibiting force of the pressure plate to the sheet material, the pressure material The strips and elastic elements can be assembled and disassembled by bolts for the purpose of easy replacement. A variable height embossing strip assisting an adjustment structure of a thin plate extension, comprising: a fixing seat, a pressing plate, a punch, a plurality of guiding columns, a plurality of elastic members, and a movable mold base; wherein A forming groove is arranged in the center of the top end of the fixing seat, and a pressing groove is arranged on both sides of the forming groove. The fixing seat is provided with a pressing plate and a movable mold base in sequence, and is pressed by a plurality of guiding columns. The material plate and the movable mold base can be punched and moved upwards and above the fixed seat; the punch is provided at the center of the bottom end of the movable mold base; and a punching hole for the punch is formed in the center of the pressure material plate; The two ends of the plurality of elastic members are respectively disposed on the movable mold base and the pressure plate, and adjacent to the periphery of the punch; the characteristic is that the pressure plate is provided with a cover body and two sides are respectively provided with one set a pressing device and a pressing device disposed on the placing groove, wherein the pressing device comprises a pressing strip, an elastic member and a plurality of bolts, wherein the pressing strip is disposed in the placing groove, and The end edge of the top end of the pressure strip is convexly provided with a limit The pressing strip corresponds to the pressing groove of the fixing seat, and the bottom end of the pressing strip is convexly disposed outside the placing groove; the two ends of the elastic member are respectively respectively pressed against the bottom of the cover body and above the pressing strip And the bolt body is used to lock the cover body and the pressure bar on the pressure plate; by the above structure, the limit portion of the pressure bar can be used to make the pressure bar be pressed when the height is adjusted. The top end of the strip is limited to the placement groove, and then the elastic strip force can be used to adjust the height of the pressure strip by rotating the bolt to achieve an adjustable height of the strip. In addition to changing the restraining force of the pressure plate to the sheet material, the pressure strip and the elastic member can be assembled and disassembled by bolts to achieve the purpose of convenient replacement.