TWM597692U - Stamping device - Google Patents

Abstract

A punching device includes a lower die base unit and a punching die. The lower mold base unit includes a lower template for carrying the blank and forming a predetermined pattern on the surface. The punching die is located above the lower template and includes at least two punching die heads movably arranged side by side. The surface of each punching die is formed with a predetermined pattern corresponding to the predetermined pattern of the lower template, and the distance between the surfaces of the punching die and the lower template is different. The punching die can move between a non-punching position and a punching position relative to the lower die base unit. In the non-punching position, the punching dies are spaced apart from the lower template. In the punching position, the punching die head close to the lower template first presses against and punches the part of the blank, and then, the punching die head away from the lower template presses against and presses the remaining part of the blank again.

Description

Punching device

The present invention relates to a stamping device, in particular to a stamping device used to stamp a blank such as a metal sheet to form a predetermined pattern.

Referring to FIG. 1, there is a conventional punching device 1 for punching a metal sheet 10 to form a predetermined pattern on the metal sheet 10, which roughly includes a punching die 11 with a predetermined pattern 111, and a punching die 11 for driving the punching die 11 to move. The die base 12 is located below the punching die 11 and a base 13 is used to support the metal sheet 10. The punching die 11 moves up and down relative to the base 13 between a non-punching position and a punching position. In the non-punching position, the punching die 11 and the base 13 are spaced apart so that the metal sheet 10 can be placed between the punching die 11 and the base 13. At the punching position, the punching die 11 presses against and punches the metal sheet 10 to transfer the predetermined pattern 111 of the punching die 11 to the metal sheet 10, and a predetermined pattern is formed on the metal sheet 10 .

Although the punching device 1 can form a predetermined pattern on the metal sheet 10, the predetermined pattern on the metal sheet 10 tends to exhibit inconsistent heights, and there is a problem of step difference. For example, referring to FIG. 2, it is obvious that when Take the height of the left and right sides as the reference At this time, the height will gradually become shorter from the left and right sides to the middle, so there is a problem of a step difference s in height.

Therefore, the object of the present invention is to provide a punching device capable of forming predetermined patterns with a relatively uniform height on a blank.

Therefore, the new punching device is suitable for processing a blank to form a predetermined pattern on the blank. The punching device includes a lower die base unit and a punching die. The lower mold base unit includes a lower template for supporting the blank and having predetermined lines formed on the surface. The punching die is located above the lower template and includes at least two punching die heads movably arranged side by side. The surface of each punching die is formed with a predetermined pattern corresponding to the predetermined pattern of the lower template, and the distance between the surfaces of the punching die and the lower template is different. The punching die can move up and down between a non-punching position and a punching position relative to the lower die base unit. When in the non-pressing position, the punching dies of the punching die are spaced from the lower template of the lower die base unit, so that the blank can be placed between the punching dies and the lower template. When the stamping die When moving from the non-punching position to the punching position, the punching die head of the punching die heads close to the lower template first presses against and punches the part of the blank, and then, the punching die head far away from the lower template presses and presses again The remaining part of the blank is used to transfer the predetermined lines of the stamping die to the blank to form predetermined lines on the blank.

The effect of the new model is: through at least two punching dies and the punching The distance between the surfaces of the die head and the lower template of the lower die base unit is designed to be different (that is, the surfaces of the die heads have a step difference with each other), when the punching device punches the blank At this time, the surface of the blank can be stamped in multiple stages, so that the surface of the blank corresponding to the stamping die can be uniformly stressed, so that the predetermined lines on the blank can show a more consistent height, thereby improving the past The existing level difference problem.

2: Lower die base unit

21: Lower mold seat

22: Lower template

221: Surface

222: predetermined pattern

223: Limit Hole

3: Upper die base unit

31: The first upper pad

32: Upper die seat

33: upper deck

34: The second upper pad

35: The first fixing part

420: predetermined pattern

5: The first elastic reset mechanism

51: connection

52: Elastic

6: limit plate

7: The second elastic reset mechanism

71: connector

72: Elastic

8: guide post

81: first end

82: second end

9: Elastic parts

36: The second fixing part

37: third fixing

4: Stamping die

41: Frame

42: Stamping die

421: Surface

91: end

20: blank

200: predetermined pattern

D: distance

d: Difference

The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a schematic cross-sectional view of the existing punching device; FIG. 2 is a schematic side view of a partially enlarged cross-sectional view illustrating the use of existing punch After the device punches a metal sheet, a predetermined pattern is formed on the metal sheet; FIG. 3 is a schematic cross-sectional view of an embodiment of the new punching device; FIG. 4 is a schematic partial cross-sectional view illustrating the lower die of this embodiment The positional relationship between the lower template of the base unit and the three punching die heads and the positional relationship between the punching die heads; FIG. 5 is a schematic cross-sectional view illustrating the punching die heads of the embodiment near the lower die base unit The punching die of the lower template moves from a non-punching position to a state of contacting a blank; 6 is a schematic cross-sectional view illustrating the state of pressing and punching the blank when the punching die head of the lower template close to the lower die base unit of the punching die heads of the embodiment moves from the non-punching position to the punching position 7 is a schematic cross-sectional view illustrating the stamping die of the lower template of the stamping die of the embodiment that is far away from the lower die base unit when it is moved from the non-punching position to the stamping position to press against and punch the blank State; and Figure 8 is a partially enlarged cross-sectional schematic side view illustrating the state of predetermined lines formed on the blank after stamping the blank using this embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

3 and 4, an embodiment of the new punching device is suitable for processing a blank 20 to form predetermined lines on the blank 20. The blank 20 is, for example, but not limited to, a metal plate. In this embodiment, the blank 20 is a steel plate. The predetermined pattern 200 is adjusted according to the subsequent application of the blank 20. In this embodiment, the predetermined pattern 200 is a concave-convex pattern (refer to FIG. 8).

The stamping device includes a lower mold base unit 2, an upper mold base unit 3, a stamping die 4, three first elastic reset mechanisms 5, a limit plate 6, a second elastic reset mechanism 7, and a guide post 8, and an elastic piece 9.

The lower mold base unit 2 includes a lower mold base 21 and a lower mold plate 22 arranged on the surface of the lower mold base 21 and used to carry the blank 20. The lower template 22 has a surface 221 formed with a predetermined pattern 222 and a limiting hole 223.

The upper mold base unit 3 is spaced apart from the lower mold base unit 2, and includes a first upper backing plate 31 located above the lower mold plate 22 of the lower mold base unit 2, and a first upper backing plate stacked on the first upper backing plate 31, an upper mold base 32 on and opposite to the lower mold plate 22, an upper bearing plate 33 stacked on the upper mold seat 32 and opposite to the first upper backing plate 31, and an upper bearing plate stacked on the upper bearing plate 33 on and opposite to the second upper backing plate 34 of the upper mold base 32. The upper mold base unit 3 also includes a first fixing member 35 that fixes the upper mold base 32, the upper bearing plate 33 and the second upper backing plate 34 together, and a A second fixing member 36 for fixing the upper bearing plate 33 together, and a third fixing member 37 for fixing the upper mold base 32 and the first upper backing plate 31 together.

The stamping die 4 is located between the lower template 22 of the lower mold base unit 2 and the first upper pad 31 of the upper mold base unit 3. The stamping die 4 includes a frame 41, and three stamping die heads 42 installed in the frame 41 and movably arranged side by side. The surface 421 of each punching die 42 is formed with a predetermined pattern 420 corresponding to the predetermined pattern 222 of the lower template 22. The distances (D) between the surfaces 421 of the punching dies 42 and the lower template 22 of the lower die base unit 2 are different, that is, the surfaces 421 of the punching dies 42 are not on the same horizontal plane , And there is a step difference d between each other. It is worth noting that the number of the punching die 42 is not limited to three, it can be two One, four, five, etc., and is adjusted according to the size of the blank 20. When the size of the blank 20 is larger, in order to make the surface of the blank 20 uniformly stressed from the inside to the outside during the stamping process, it is not easy to deform and cause the problem of segmentation. The number of the stamping dies 42 also varies with the blank. The size of 20 is increased.

Each first elastic reset mechanism 5 is installed in the upper die base unit 3 and partially protrudes from the upper die base unit 3 to be connected to the corresponding punching die 42 of the punching die 4. Each first elastic reset mechanism 5 includes a connecting member 51 connected to the corresponding punching die 42 and movable relative to the upper die base unit 3, and an elastic member 52 connecting the connecting member 51 and the upper die base unit 3 . It is worth noting that the number of the first elastic resetting mechanisms 5 is not limited to three, and is adjusted according to the number of the punching dies 42.

The limiting plate 6 is located between the lower template 22 of the lower mold base unit 2 and the first upper backing plate 31 of the upper mold base unit 3, and is spaced apart from the first upper backing plate 31 in an up-and-down direction, and A front-rear direction is spaced apart from the punching die 4. The limiting plate 6 can move relative to the lower mold plate 22 of the lower mold base unit 2 and is used to press against the blank 20 on the lower mold plate 22 to prevent the blank 20 from moving.

The second elastic reset mechanism 7 is installed in the upper mold base unit 3 and partially protrudes from the upper mold base unit 3 to be connected to the limiting plate 6. The second elastic reset mechanism 7 includes a connecting member 71 connected to the limiting plate 6 and capable of moving relative to the upper mold base unit 3, and an elastic member 72 connecting the connecting member 71 and the upper mold base unit 3.

The guide post 8 penetrates the limiting plate 6 and has a first end 81 and a second end 82 that are oppositely disposed and protrude from the limiting plate 6. The first end 81 is connected to the first upper backing plate 31 of the upper mold base unit 3, and the second end 82 is used to be inserted into the limiting hole 223 of the lower template 22. It is worth noting that the guide post 8 and the limit hole 223 are matched with each other, and the guide post 8 and the limit hole 223 are not limited to one, and can be two, three, four, etc.

The elastic member 9 is installed in the upper mold base unit 3 and partially protrudes from the upper mold base unit 3. The elastic member 9 has opposite ends 91 which are respectively connected to the upper mold base unit 3 and the limiting plate 6.

Referring to Figures 3, 6 and 7, the punching die 4 is driven by the upper die base unit 3, and can be in a non-punching position (see Figure 3) and a punching position relative to the lower template 22 of the lower die base unit 2 Move the space up and down (see Figure 6 and Figure 7).

3, when the stamping die 4 is in the non-stamping position, the stamping die heads 42 of the stamping die 4 are spaced from the lower template 22 of the lower die base unit 2, so that the blank 20 can be placed on the Between the stamping die 42 and the lower die plate 22. The elastic member 9 is used to provide an offset force that keeps the limiting plate 6 and the first upper backing plate 31 of the upper mold base unit 3 at a constant distance.

Referring to FIG. 5, when the punching die 4 moves from the non-punching position to the punching position, the punching die 42 of the punching die 42 that is close to the lower template 22 first contacts the part of the blank 20, and the limit plate 6 is moved and pressed against the blank 20 to avoid the The blank 20 moves, and the second end 82 of the guide post 8 is inserted into the limiting hole 223 of the lower template 22.

Referring to FIG. 6, when the punching die 4 moves to the punching position, the punching die 42 of the punching die 42 that is close to the lower template 22 first presses against and punches the part of the blank 20, and then, referring to FIG. 7, The punching die 42 far away from the lower template 22 presses against and punches the remaining part of the blank 20, so as to transfer the predetermined lines 420 of the punching die 42 to the blank 20, and on the blank 20 A predetermined pattern 200 is formed.

When a predetermined pattern 200 is formed on the blank 20, the upper die base unit 3 is caused to drive the punching die 4 to move from the punching position to the non-punching position. At this time, the elastic parts 52 of the first elastic reset mechanism 5 Respectively provide the restoring force that drives the connecting pieces 51 to move and constantly restores the punching dies 42 to the non-stamping position, and the elastic piece 72 of the second elastic reset mechanism 7 is used to provide for driving the connecting piece 71 to move and constantly The restoring force for restoring the limiting plate 6 to the initial position facilitates the next blank 20 stamping.

Referring to FIG. 8, after the blank 20 is punched by the punching device of the above embodiment, a predetermined pattern showing a relatively uniform height is formed on the surface of the blank 20.

In summary, the present invention adopts at least two punching dies 42 and the distance D between the surfaces 421 of the punching dies 42 and the lower template 22 of the lower die base unit 2 is designed to be different (that is, The surfaces 421 of the punching dies 42 have a step difference d). When the punching device punches the blank 20, the blank 20 can be punched in multiple stages. The surface of the blank 20, so that the surface of the blank 20 corresponding to the punching die 42 can be uniformly stressed, so that the predetermined pattern 200 on the blank 20 can present a more uniform height, thereby improving the previous step difference The problem, so it can indeed achieve the goal of a new type of cost.

However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

2: Lower die base unit

21: Lower mold seat

22: Lower template

221: Surface

222: predetermined pattern

223: Limit Hole

3: Upper die base unit

31: The first upper pad

42: Stamping die

421: Surface

420: predetermined pattern

5: The first elastic reset mechanism

51: connection

52: Elastic

6: limit plate

7: The second elastic reset mechanism

32: Upper die seat

33: upper deck

34: The second upper pad

35: The first fixing part

36: The second fixing part

37: third fixing

4: Stamping die

41: Frame

71: connector

72: Elastic

8: guide post

81: first end

82: second end

9: Elastic parts

91: end

20: blank

Claims (9)

A punching device is suitable for processing a blank to form a predetermined pattern on the blank, comprising: a lower mold base unit, including a lower template for carrying the blank and having a predetermined pattern formed on the surface; and a punching die located at Above the lower template, it includes at least two movably arranged side by side punching dies. The surface of each punching die is formed with a predetermined pattern corresponding to the predetermined pattern of the lower template, and the surfaces of the punching die The distance between the lower template and the lower template is different; wherein, the stamping die can move up and down between a non-stamping position and a stamping position relative to the lower die base unit. When in the non-stamping position, the stamping die heads of the stamping die It is spaced from the lower template of the lower mold base unit so that the blank can be placed between the punching dies and the lower template. When the punching die moves from the non-punching position to the punching position, the punching dies The punching die head close to the lower template in the head first presses against and punches the part of the blank, and then the punching die far away from the lower template presses against and punches the remaining part of the blank, so that the punching die The predetermined pattern is transferred to the blank, and the predetermined pattern is formed on the blank. The punching device according to claim 1, further comprising an upper mold base unit located above the punching die and used to drive the punching die to move up and down. The punching device according to claim 2, further comprising a plurality of first elastic resetting mechanisms installed in the upper die base unit and respectively connected to the punching die heads; when the punching die moves from the punching position to the non-punching position When the first elastic reset mechanism is used to provide the permanent stamping die The restoring force to return to the non-pressing position. The punching device according to claim 3, wherein each of the first elastic resetting mechanisms includes a connecting piece connected to the corresponding punching die head and capable of moving relative to the upper die base unit, and a connecting piece connecting the connecting piece and the upper die The elastic part of the seat unit. The punching device according to claim 2, further comprising a limit plate located between the lower template of the lower mold base unit and the upper mold base unit and spaced apart from the punching die in a front-to-back direction, and the limit plate can The lower template moves relative to the lower mold base unit, and when the stamping die moves to the stamping position, the limiting plate is moved to press against the blank to prevent the blank from moving. The punching device according to claim 5, further comprising a second elastic reset mechanism installed in the upper die base unit and connected to the limit plate; when the punching die moves from the punching position to the non-punching position, the The second elastic reset mechanism is used to provide a restoring force that constantly restores the limit plate to the initial position. The punching device according to claim 6, wherein the second elastic reset mechanism includes a connecting member connected to the limiting plate and capable of moving relative to the upper die base unit, and a connecting member and the upper die base unit The elastic piece. The punching device according to claim 5, wherein at least one limiting hole is formed on the surface of the lower template of the lower mold base unit; the punching device further includes at least one guide post passing through the limiting plate, and At least one guide post has two oppositely arranged ends protruding from the limiting plate, one of which is connected to the upper die base unit, and the other end is when the punching die is moved from the non-punching position to the punching position Inserted in the at least one limiting hole of the lower template. The punching device according to claim 5, which further includes an elastic member, The elastic member is installed in the upper die base unit, and has two oppositely arranged and respectively connected ends of the upper die base unit and the limit plate; when the punching die is in the non-punching position, the elastic member is used Provide a constant offset force that keeps the limit plate and the upper mold base unit at a distance.

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