Anti-flash stamping die

Abstract

The anti-flash stamping die comprises a base, a lower die body and an upper die body, connecting blocks are fixedly connected to the two sides of the lower die body, connecting plates are movably connected to the tops of the connecting blocks, connecting rods are fixedly connected to the bottoms of the connecting plates, and the other ends of the connecting rods extend into the connecting blocks and are fixedly connected with push rods. First conical blocks are fixedly connected to the two sides of the push rod, a first spring is fixedly connected to the position, located outside the connecting rod, of the top of an inner cavity of the connecting block, and the other end of the first spring is connected with the outer side wall of the push rod; and a second spring is fixedly connected between the inner wall of the connecting block and the second conical block and outside the inserting rod. And through the arrangement of the first fixing block, the connecting block, the second fixing block and the L-shaped inserting block, the upper die and the lower die can be conveniently taken down from the device to be overhauled and replaced, the purpose of quick disassembly is achieved, the replacement efficiency is improved, and it is guaranteed that the dies can better adapt to materials.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an anti-flash stamping die. Background Art

[0002] During the injection molding process, the upper and lower mold bases will be subjected to forces during the stamping process, which will cause the force on the lower mold base to be unbalanced, thus causing local flash. For this reason, we propose a stamping mold that prevents flash.

[0003] A Chinese patent discloses an anti-flash stamping die (application number: 202120918024.0). This scheme uses two correspondingly raised upper and lower die bodies to make the upper surface of the blank concave downward and the lower surface concave upward after being stamped. Then, after being subjected to extrusion pressure, the material in the middle of the blank first supplements the missing concave part of the blank, thereby reducing the generation of flash. In this device, the lower die is mounted on the lower die seat by screws, which requires the use of external tools when disassembling and assembling the lower die seat. The screws must be turned by external tools to disassemble and assemble the lower die, which is inconvenient to operate, and the disassembly and assembly process is cumbersome, which increases the workload of the staff and the work efficiency is low. On the other hand, the upper die is set on the upper die seat and cannot be disassembled, which seriously affects the disassembly and assembly of the upper die, and the practicality is not high. At the same time, due to the design of the reset spring, a large resistance is generated when pushing the upper die downward, and a large force needs to be applied to stamp the material, which is inconvenient for stamping the material. Utility Model Content

[0004] The utility model aims to provide an anti-flash stamping die to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an anti-flash stamping die, comprising a base, a lower die and an upper die, the lower die being fixedly connected with connecting blocks on both sides, the top of the connecting block being movably connected with a connecting plate, a handle being installed on the top of the connecting plate, the bottom of the connecting plate being fixedly connected with a connecting rod, the other end of the connecting rod extending into the interior of the connecting block and fixedly connected with a push rod, a pair of first cone blocks being fixedly connected with both sides of the push rod, the top of the inner cavity of the connecting block is located outside the connecting rod and is fixedly connected with a first spring, the other end of the first spring is connected to the outer side wall of the push rod, each side wall of the connecting block is slidably connected with an insertion rod, one end of the insertion rod extends to the inner cavity of the connecting block and is fixedly connected with a second cone block, and a second spring is located outside the insertion rod and is fixedly connected with the inner wall of the connecting block and the second cone block.

[0006] As a preferred technical solution of the utility model, a lower mold base is arranged on the top of the base, and the lower mold is arranged on the top of the lower mold base. A first fixed block is fixedly installed on both sides of the lower mold base on the top of the lower mold base, and slots are opened inside on both sides of the first fixed block, and the size and position of the slots are adapted to the size and position of the insertion rod.

[0007] As a preferred technical solution of the utility model, the top of the base is fixedly connected to a mounting frame, the top of the mounting frame is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a pressure rod, and the other end of the pressure rod passes through the top of the mounting frame and is fixedly connected to an upper mold base.

[0008] As a preferred technical solution of the utility model, multiple L-shaped sliders are fixedly connected on both sides of the upper mold base, and the side of the L-shaped slider away from the upper mold base is slidably connected to a guide rod, the top of the guide rod is fixedly connected to one side of the mounting frame, and the bottom of the guide rod is fixedly connected to the top of the base.

[0009] As a preferred technical solution of the utility model, the upper mold is arranged at the bottom of the upper mold base, and the bottom of the upper mold base is located on both sides of the upper mold and fixedly connected with a second fixed block, and two slots are provided on the inner side of the second fixed block.

[0010] As a preferred technical solution of the utility model, L-shaped plugs are fixedly connected on both sides of the upper mold, and two connecting grooves are opened inside the end of the L-shaped plug away from the upper mold. A third spring is fixedly connected to one side of the connecting groove, and a clamping block is fixedly connected to the other end of the third spring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The anti-flash stamping die, through the arrangement of the first fixed block and the connecting block, the second fixed block and the L-shaped plug block, facilitates the removal of the upper and lower dies from the device for inspection and replacement, thereby achieving the purpose of rapid disassembly, improving the disassembly and assembly efficiency, ensuring that the die can better adapt to the material, and improving the quality and effect of the material after stamping.

[0013] 2. The anti-flash stamping die has two correspondingly raised upper and lower die bodies, so that the upper surface of the material is concave downward and the lower surface is concave upward after being stamped. Then, after being subjected to extrusion pressure, the material in the middle of the material first supplements the loss of the concave part of the blank, thereby reducing the generation of flash. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure of the upper die base, hydraulic cylinder and guide rod of the utility model;

[0016] Figure 3 It is a cross-sectional view of the internal connection structure of the first fixing block and the connecting block of the utility model;

[0017] Figure 4 It is a cross-sectional view of the internal connection structure of the second fixing block and the L-shaped plug block of the utility model.

[0018] In the figure: 1. base; 2. lower die base; 3. lower die; 4. upper die; 5. mounting frame; 6. first fixed block; 7. slot; 8. connecting block; 9. connecting plate; 10. connecting rod; 11. push rod; 12. first cone block; 13. first spring; 14. handle; 15. plug rod; 16. second cone block; 17. second spring; 18. hydraulic cylinder; 19. pressure rod; 20. upper die base; 21. L-shaped slider; 22. guide rod; 23. L-shaped plug block; 24. second fixed block; 25. slot; 26. connecting slot; 27. third spring; 28. block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution for an anti-flash stamping die, and the utility model will be further described in detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] A flash prevention stamping die comprises a base 1, a lower die 3 and an upper die 4, wherein connecting blocks 8 are fixedly connected on both sides of the lower die 3, a connecting plate 9 is movably connected to the top of the connecting block 8, a handle 14 is installed on the top of the connecting plate 9, a connecting rod 10 is fixedly connected to the bottom of the connecting plate 9, the other end of the connecting rod 10 extends to the inside of the connecting block 8 and is fixedly connected to a push rod 11, a pair of first cone blocks 12 are fixedly connected on both sides of the push rod 11, a first spring 13 is fixedly connected to the top of the inner cavity of the connecting block 8 outside the connecting rod 10, the other end of the first spring 13 is connected to the outer side wall of the push rod 11, an insertion rod 15 is slidably connected to each of the two side walls of the connecting block 8, one end of the insertion rod 15 extends to the inner cavity of the connecting block 8 and is fixedly connected to a second cone block 16, and a second spring 17 is fixedly connected to the outside of the insertion rod 15 between the inner wall of the connecting block 8 and the second cone block 16.

[0023] Specifically, a lower mold base 2 is provided on the top of the base 1, and the lower mold 3 is provided on the top of the lower mold base 2. A first fixed block 6 is fixedly installed on both sides of the lower mold 3 on the top of the lower mold base 2, and slots 7 are opened inside on both sides of the first fixed block 6. The size and position of the slots 7 are adapted to the size and position of the insertion rod 15.

[0024] Furthermore, the top of the base 1 is fixedly connected to a mounting frame 5, and a hydraulic cylinder 18 is provided on the top of the mounting frame 5. A pressure rod 19 is fixedly connected to the output end of the hydraulic cylinder 18, and the other end of the pressure rod 19 passes through the top of the mounting frame 5 and is fixedly connected to an upper die seat 20. The movement of the pressure rod 19 can be conveniently controlled by the hydraulic cylinder 18, so that it can be started and stopped at any position, ensuring that the device can adapt to stamping work at different positions.

[0025] Furthermore, a plurality of L-shaped sliders 21 are fixedly connected to both sides of the upper die base 20, and a guide rod 22 is slidably connected to one side of the L-shaped slider 21 away from the upper die base 20, the top of the guide rod 22 is fixedly connected to one side of the mounting frame 5, and the bottom of the guide rod 22 is fixedly connected to the top of the base 1. The L-shaped slider 21 slides on the guide rod 22 to improve the stability of the upper die base 20 during movement and prevent the device from tipping over.

[0026] Furthermore, the upper mold 4 is arranged at the bottom of the upper mold base 20 , and the bottom of the upper mold base 20 is located on both sides of the upper mold 4 and fixedly connected with second fixing blocks 24 , and two slots 25 are provided inside the second fixing blocks 24 .

[0027] Furthermore, L-shaped plugs 23 are fixedly connected on both sides of the upper mold 4. Two connecting grooves 26 are opened inside the end of the L-shaped plug 23 away from the upper mold 4. A third spring 27 is fixedly connected to one side of the connecting groove 26, and a clamping block 28 is fixedly connected to the other end of the third spring 27.

[0028] When used specifically, Figure 1 , Figure 2 and Figure 3 , Figure 4As shown, when the lower mold 3 needs to be removed from the lower mold base 2, the handle 14 is pulled upward so that the connecting plate 9 pulls the connecting rod 10 upward, and the connecting rod 10 drives the push rod 11 to move upward. At this time, the first cone block 12 will be separated from the two second cone blocks 16. After the thrust of the two second cone blocks 16 by the first cone block 12 disappears, under the elastic force of the second spring 17, the insertion rod 15 will be pulled by the second cone block 16 to leave the slots 7 on both sides of the first fixing block 6 and enter the inner cavity of the connecting block 8. At this time, the connecting block 8 and the first fixed block 6 will be unlocked, and then the lower mold 3 can be removed from the lower mold base 2 for inspection, maintenance and replacement. After completion, repeat the above operation to put the connecting block 8 back into the inner side of the first fixed block 6, and then release the handle 14. Under the action of the first spring 13, the push rod 11 is reset. At this time, the first cone block 12 will squeeze the second cone block 15 to both sides of the connecting block 8, so that the insert rod 15 passes through the connecting block 8 and is reinserted into the slot 7, completing the fixation of the lower mold 3 and the lower mold base 2.

[0029] When it is necessary to remove the upper mold 4 from the upper mold base 20, it is only necessary to pull the lower mold 4 downward, and the block 28 will be squeezed out of the slot 25 and then enter the connecting slot 26. Since there are two blocks 28, the upper block 28 will enter the lower slot 25 after leaving the slot 25, avoiding the block 28 from falling off directly due to only one slot 25. In this way, the upper mold 4 can be prevented from falling off accidentally. When the block 28 leaves the lower slot 25, the upper mold 4 can be removed. After the operation is completed, the L-shaped plug 23 is reinserted into the second fixing block 24. The two blocks 28 re-enter the slot 25 under the action of the third spring 27, completing the fixation of the upper mold 3 and the upper mold base 20.

[0030] Through the mutual cooperation of the first fixed block and the connecting block, and the second fixed block and the internal connecting structure of the L-shaped plug-in block, the upper and lower molds can be conveniently removed from the upper and lower mold bases for inspection and replacement, thereby achieving the purpose of quick disassembly, improving the replacement efficiency, ensuring that the mold can better adapt to the material, and improving the quality and effect of the material after stamping. The structure is simple and the disassembly and assembly are convenient and quick.

[0031] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

Claims

1. An anti-flash stamping die, comprising a base (1), a lower die (3) and an upper die (4), characterized in that: The lower mold (3) is fixedly connected with a connecting block (8) on both sides, and the top of the connecting block (8) is movably connected with a connecting plate (9), and a handle (14) is installed on the top of the connecting plate (9). The bottom of the connecting plate (9) is fixedly connected with a connecting rod (10), and the other end of the connecting rod (10) extends into the interior of the connecting block (8) and is fixedly connected with a push rod (11). A pair of first cone blocks (12) are fixedly connected on both sides of the push rod (11). The top of the inner cavity of the connecting block (8) is located outside the connecting rod (10) and is fixedly connected with a first spring (13), and the other end of the first spring (13) is connected to the outer wall of the push rod (11). The two side walls of the connecting block (8) are each slidably connected with an insertion rod (15), and one end of the insertion rod (15) extends into the inner cavity of the connecting block (8) and is fixedly connected with a second cone block (16), and a second spring (17) is located between the inner wall of the connecting block (8) and the second cone block (16) and is fixedly connected to the outside of the insertion rod (15).

2. The anti-flash stamping die according to claim 1, characterized in that: A lower die seat (2) is arranged on the top of the base (1), and the lower die (3) is arranged on the top of the lower die seat (2). First fixing blocks (6) are fixedly installed on both sides of the lower die (3) at the top of the lower die seat (2), and slots (7) are provided inside the two sides of the first fixing block (6), and the size and position of the slots (7) are adapted to the size and position of the insertion rod (15).

3. The anti-flash stamping die according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a mounting frame (5), the top of the mounting frame (5) is provided with a hydraulic cylinder (18), the output end of the hydraulic cylinder (18) is fixedly connected to a pressure rod (19), the other end of the pressure rod (19) passes through the top of the mounting frame (5) and is fixedly connected to an upper die seat (20).

4. The anti-flash stamping die according to claim 3, characterized in that: A plurality of L-shaped sliders (21) are fixedly connected to both sides of the upper die seat (20); a side of the L-shaped slider (21) away from the upper die seat (20) is slidably connected to a guide rod (22); the top of the guide rod (22) is fixedly connected to one side of the mounting frame (5); and the bottom of the guide rod (22) is fixedly connected to the top of the base (1).

5. The anti-flash stamping die according to claim 3, characterized in that: The upper mold (4) is arranged at the bottom of the upper mold base (20); the bottom of the upper mold base (20) is located on both sides of the upper mold (4) and is fixedly connected to a second fixing block (24); two slots (25) are provided inside the second fixing block (24).

6. The anti-flash stamping die according to claim 1, characterized in that: L-shaped plug blocks (23) are fixedly connected to both sides of the upper mold (4); two connection grooves (26) are provided inside one end of the L-shaped plug block (23) away from the upper mold (4); a third spring (27) is fixedly connected to one side of the connection groove (26); and a clamping block (28) is fixedly connected to the other end of the third spring (27).

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