Novel limiting floating pin stamping die

Abstract

The utility model discloses a novel limiting buoyancy lift pin stamping die which comprises an upper die, a lower die and a buoyancy lift pin assembly, and the buoyancy lift pin assembly penetrates through the lower die. The lower die comprises a lower die base, a lower cushion plate, a lower clamping plate and a lower stripping plate which are sequentially arranged from bottom to top, the floating pin assembly comprises a floating block, a floating pin and a reset spring, the floating block penetrates through the lower stripping plate and can move up and down relative to the lower stripping plate, and the top of the floating pin sequentially penetrates through the lower clamping plate and the lower stripping plate from bottom to top and is connected with the lower end face of the floating block. The bottom of the floating pin is arranged on the upper end face of the lower cushion plate, the top of the reset spring sequentially penetrates through the lower die base and the lower cushion plate from bottom to top and is connected with the bottom of the floating pin, the bottom of the reset spring is fixed to the lower end face of the lower die base, and the reset spring is used for driving the floating pin and the floating block to move up and down. Pressing block limiting of the lower die is omitted, the reset spring in the floating pin assembly is used for driving the floating pin and the floating block to move up and down together, and material guiding and material stripping are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware molds, in particular to a novel limited floating lift pin stamping mold. Background Art

[0002] Lift pins are die guides for stamping dies. Their primary function is to lift the material strip, preventing feeding problems. Typically, a stamping die consists of a lower die base, a lower die plate, a lift pin, and the material strip. The lower end of the lift pin is located within the lower die base and supported by a spring, allowing the material strip to be raised and lowered.

[0003] Existing stamping dies that use floating pins usually have a pressure block limiter on the lower release plate of the lower die. The floating block of the lower release plate pushes the floating block upward through the floating pin, and then the floating block is inserted through the pressure block limiter. Such a floating pin structure has the following disadvantages: the pressure block limiter causes the structural strength of the mold to decrease, and at the same time, additional pressure blocks and pressure block inserts are required, which increases the processing cost. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the problems existing in the prior art and provide a new type of limited floating pin stamping die.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The cam is pressed onto the bottom of the cam and is pressed onto the support frame, and the cam is pressed onto the support frame, and the support frame is pressed onto the support frame.

[0007] Furthermore, the floating pin includes a floating pin body and a hanging platform provided at the bottom of the floating pin body, the floating pin body is connected to the floating block, and the hanging platform is connected to the reset spring.

[0008] Furthermore, the floating block is provided with a first through hole for a screw to pass through, and the floating pin body is provided with a second through hole corresponding to the first through hole. The screw passes through the first through hole and the second through hole in sequence to fix the floating block and the floating pin.

[0009] Furthermore, a limiting surface is provided on one side of the floating pin body, and the limiting surface is used to limit the rotation of the floating pin.

[0010] Furthermore, the lower pad is provided with a spring hole, and the lower clamping plate and the lower stripping plate are both provided with a floating pin hole; the hanging platform is passed through the spring hole, and the floating pin body is passed through the floating pin hole.

[0011] Furthermore, the diameter of the floating pin body is 10-14 mm, and the diameter of the hanging platform is 13-17 mm.

[0012] Furthermore, the upper mold includes an upper mold base, an upper pad, an upper clamping plate, an upper stop plate, an upper stripping plate and a first positioning pin. The upper mold base, upper pad, upper clamping plate, upper stop plate and upper stripping plate are arranged in sequence from top to bottom, and the first positioning pin is arranged through the upper mold base, upper pad, upper clamping plate, upper stop plate and upper stripping plate.

[0013] Furthermore, the floating pin assembly also includes a second positioning pin and a positioning block. The second positioning pin is sequentially passed through the positioning block and the floating block from bottom to top. The second positioning pin is arranged corresponding to the first positioning pin, and the positioning block is arranged below the floating block.

[0014] Furthermore, the floating block is provided with a positioning hole for the second positioning pin to pass through; when the stamping die is closed, the second positioning pin is passed through the positioning hole and corresponds to the first positioning pin.

[0015] Furthermore, when the stamping die is opened, the upper end surface of the floating block is higher than the upper end surface of the lower release plate; when the stamping die is closed, the upper end surface of the floating block is flush with the upper end surface of the lower release plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model eliminates the pressing block limit of the lower die and utilizes the reset spring in the floating pin assembly to drive the floating pin and the floating block to move up and down together to realize material guiding and stripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the utility model in the mold opening state;

[0019] Figure 2 This is a schematic structural diagram of the utility model in the mold closing state;

[0020] Figure 3 yes Figure 1 A magnified view of middle A;

[0021] Figure 4 yes Figure 2 Enlarged view of middle B;

[0022] Figure 5This is a structural diagram of the floating lifting pin in the utility model;

[0023] Figure 6 It is a top view of the floating lifting pin in the utility model.

[0024] The accompanying drawings are:

[0025] 1-upper die, 11-upper die base, 12-upper pad, 13-upper clamping plate, 14-upper stop plate, 15-upper stripping plate, 16-first positioning pin;

[0026] 2-lower die, 21-lower die base, 22-lower pad, 23-lower clamping plate, 24-lower stripping plate;

[0027] 3- floating pin assembly, 31- floating block, 311- first through hole, 32- floating pin, 321- floating pin body, 322- hanging platform, 323- second through hole, 324- limiting surface, 33- return spring, 34- second positioning pin, 35- positioning block;

[0028] 4- screws;

[0029] 5-Back panel. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0031] Example

[0032] like Figure 1-5 As shown, this embodiment discloses a new type of limited floating pin stamping die, including an upper die 1, a lower die 2 and a floating pin assembly 3, the upper die 1 and the lower die 2 are arranged correspondingly up and down, and the floating pin assembly 3 passes through the lower die 2; the lower die 2 includes a lower die base 21, a lower pad 22, a lower clamping plate 23 and a lower stripping plate 24 arranged in sequence from bottom to top, the floating pin assembly 3 includes a floating block 31, a floating pin 32 and a reset spring 33, the floating block 31 is passed through the lower stripping plate 24 and can be relative to the lower stripping plate 24. The top of the floating pin 32 passes through the lower clamping plate 23 and the lower stripping plate 24 from bottom to top in sequence and is connected to the lower end face of the floating block 31. The bottom of the floating pin 32 is arranged on the upper end face of the lower pad 22. The top of the reset spring 33 passes through the lower die base 21 and the lower pad 22 from bottom to top in sequence and is connected to the bottom of the floating pin 32. The bottom of the reset spring 33 is fixed to the lower end face of the lower die base 21. The reset spring 33 is used to drive the floating pin 32 and the floating block 31 to move up and down.

[0033] Compared with the prior art, the stamping die in this embodiment cancels the pressure block limit of the lower die, and utilizes the reset spring 33 in the floating pin assembly 3 to drive the floating pin 32 and the floating block 31 to move up and down together to achieve material guiding and stripping.

[0034] Furthermore, the floating pin 32 includes a floating pin body 321 and a hanging platform 322 provided at the bottom of the floating pin body 321 . The floating pin body 321 is connected to the floating block 31 , and the hanging platform 322 is connected to the floating pin 32 with the return spring 33 .

[0035] Furthermore, the floating block 31 is provided with a first through hole 311 for the screw 4 to pass through, and the floating pin body 321 is provided with a second through hole 323 corresponding to the first through hole 311. The screw 4 passes through the first through hole 311 and the second through hole 323 in sequence to fix the floating block 31 and the floating pin 32.

[0036] Furthermore, a limiting surface 324 is provided on one side of the lift pin body 321 to limit the rotation of the lift pin 32. Furthermore, one side of the lift pin body 321 is chamfered to provide the limiting surface 324. When the lift pin body 321 is inserted through the lower clamping plate 23 and the lower stripping plate 24, the limiting surface 324 limits the rotation of the lift pin 32.

[0037] Furthermore, the lower pad 22 is provided with a spring hole, and both the lower clamping plate 23 and the lower release plate 24 are provided with a floating pin hole. The hanging platform 322 is inserted into the spring hole, and the floating pin body 321 is inserted into the floating pin hole. By providing a stop surface 324, the floating pin 32 as a whole will not rotate when the floating pin body 321 is inserted into the floating pin hole, ensuring that the return spring 33 can drive the floating pin 32 straight up and down, further ensuring that the floating block 31 can move up and down relative to the lower release plate 24.

[0038] Furthermore, the diameter of the lift pin body 321 is 10-14mm, and the diameter of the hanging platform 322 is 13-17mm. In this embodiment, the diameter of the lift pin body 321 is 12mm, and the diameter of the hanging platform is 15mm. Through this arrangement, on the one hand, the block limiter in the prior art is eliminated, thereby optimizing the structure of the stamping die; on the other hand, by increasing the diameter of the lift pin body 321 and cooperating with the limit surface 324, the lift pin 32 as a whole does not rotate, allowing the lift pin 32 to smoothly drive the float block 31 to move up and down relative to the lower stripping plate 24.

[0039] Furthermore, the upper mold 1 includes an upper mold base 11, an upper pad 12, an upper clamping plate 13, an upper stop plate 14, an upper stripping plate 15 and a first positioning pin 16. The upper mold base 11, the upper pad 12, the upper clamping plate 13, the upper stop plate 14 and the upper stripping plate 15 are arranged in sequence from top to bottom, and the first positioning pin 16 is arranged through the upper mold base 11, the upper pad 12, the upper clamping plate 13, the upper stop plate 14 and the upper stripping plate 15.

[0040] Furthermore, the floating pin assembly 3 also includes a second locating pin 34 and a locating block 35. The second locating pin 34 is sequentially inserted through the locating block 35 and the floating block 31 from bottom to top. The second locating pin 34 is provided corresponding to the first locating pin 16, and the locating block 35 is provided below the floating block 31. By providing the first locating pin 16, the second locating pin 34, and the locating block 35, when the upper mold 1 and the lower mold 3 are opened, the second locating pin 34 positions the back plate 5; when the upper mold 1 and the lower mold 2 are closed, the first locating pin 16, the second locating pin 34, and the locating block 35 cooperate to achieve the positioning and stamping of the back plate 5.

[0041] Furthermore, the float block 31 is provided with a positioning hole for a second positioning pin 34 to pass through. When the stamping die is closed, the second positioning pin 34 is inserted into the positioning hole, corresponding to the first positioning pin 16. By providing the second positioning pin 34 and the positioning hole, the second positioning pin 34 can be inserted into the positioning hole, further ensuring the vertical movement of the float block 31 relative to the lower release plate 24.

[0042] Furthermore, when the stamping die is opened, the upper end surface of the float block 31 is higher than the upper end surface of the lower release plate 24; when the stamping die is closed, the upper end surface of the float block 31 is flush with the upper end surface of the lower release plate 24. In this embodiment, when the stamping die is opened, the upper end surface of the float block 31 is 10 mm higher than the upper end surface of the lower release plate 24, and the second positioning pin 34 is used in conjunction to position the back plate 5.

[0043] The specific operation process of this embodiment is as follows: (1) when the stamping die is in the open state, the back plate 5 to be stamped is placed on the upper end surface of the float 31, and the second positioning pin 34 positions the back plate 5 to be stamped; (2) the upper die 1 moves downward, the upper die 1 and the lower die 2 are closed up and down, and at the same time the upper stop plate 14 abuts against the float 31, and the float 31 moves downward in the lower stripping plate 24 driven by the upper stop plate 14, and the float 31 drives the floating pin 32 to compress the return spring 33 downward, and the back plate 4 is stamped out of the required shape between the upper stripping plate 15 and the lower stripping plate 24; (3) the upper die 1 moves upward, the upper die 1 and the lower die 2 are in the open state, and the compressed return spring 33 converts the elastic potential energy into kinetic energy, driving the floating pin 32 and the float 31 to move upward together, and the back plate 4 rises together with the float 31, and separates from the lower stripping plate 24, completing the stripping.

[0044] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A new type of limited floating pin stamping die, characterized by: The cam is secured to the bottom of the cam and is adapted to move the cam forwardly and backward relative to the lower support plate, and the cam is secured to the bottom of the cam and is adapted to move the cam forwardly and forward relative to the lower support plate.

2. A new type of limited floating pin stamping die according to claim 1, characterized in that: The floating pin includes a floating pin body and a hanging platform arranged at the bottom of the floating pin body. The floating pin body is connected to the floating block, and the hanging platform is connected to the reset spring.

3. The novel limited floating lift pin stamping die according to claim 2 is characterized in that: The floating block is provided with a first through hole for a screw to pass through, and the floating pin body is provided with a second through hole corresponding to the first through hole. The screw passes through the first through hole and the second through hole in sequence to fix the floating block and the floating pin.

4. The novel limited floating lift pin stamping die according to claim 2 is characterized in that: A limiting surface is provided on one side of the floating pin body, and the limiting surface is used to limit the rotation of the floating pin.

5. The novel limited floating lift pin stamping die according to claim 2 is characterized in that: The lower pad is provided with a spring hole, and the lower clamping plate and the lower stripping plate are both provided with a floating pin hole; the hanging platform is passed through the spring hole, and the floating pin body is passed through the floating pin hole.

6. The novel limited floating lift pin stamping die according to claim 2 is characterized in that: The diameter of the floating pin body is 10-14 mm, and the diameter of the hanging platform is 13-17 mm.

7. The novel limited floating lift pin stamping die according to claim 1 is characterized in that: The upper mold includes an upper mold base, an upper pad, an upper clamping plate, an upper stop plate, an upper stripping plate and a first positioning pin. The upper mold base, upper pad, upper clamping plate, upper stop plate and upper stripping plate are arranged in sequence from top to bottom, and the first positioning pin is arranged through the upper mold base, upper pad, upper clamping plate, upper stop plate and upper stripping plate.

8. The novel limited floating pin stamping die according to claim 7 is characterized in that: The floating pin assembly also includes a second positioning pin and a positioning block. The second positioning pin is sequentially passed through the positioning block and the floating block from bottom to top. The second positioning pin is arranged corresponding to the first positioning pin. The positioning block is arranged below the floating block.

9. The novel limited floating lift pin stamping die according to claim 8, characterized in that: The floating block is provided with a positioning hole for the second positioning pin to pass through; when the stamping die is closed, the second positioning pin is passed through the positioning hole and corresponds to the first positioning pin.

10. The novel limited floating lift pin stamping die according to claim 1, characterized in that: When the stamping die is opened, the upper end surface of the floating block is higher than the upper end surface of the lower stripping plate; when the stamping die is closed, the upper end surface of the floating block is flush with the upper end surface of the lower stripping plate.

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