Stamping die for quick demoulding of rivet

Abstract

The utility model relates to the technical field of dies, and particularly discloses a stamping die capable of rapidly demoulding rivets, which comprises an upper die and a lower die, and the top of the upper die is connected with a top seat; a top plate is arranged at the top of the lower die, the two ends of the top plate are connected with mounting plates through mounting pieces, connecting columns slidably penetrate through the mounting plates, the tops of the connecting columns are connected with a top seat, springs sleeving the connecting columns are arranged between the mounting plates and the top seat, the connecting columns extend to the bottoms of the mounting plates to be connected with limiting blocks, and movable holes for sliding of the limiting blocks are formed in the lower die; due to the arrangement of the top plate, the mounting plate, the connecting column and the spring, when the upper die carries out punch forming on a rivet, a rivet head is arranged at the top of the top plate to be formed, and when the upper die moves upwards, the rivet can move along with the top plate, rapid separation of the rivet and the lower die is facilitated, and arrangement of parts in the lower die is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a stamping mold for rapid demoulding of rivets. Background Art

[0002] In the rivet manufacturing process, the corresponding rivet punching die is designed according to the type, size and required connection strength of the rivet. The die is usually made of hard materials, such as hardened steel, to ensure durability and precision. In the rivet manufacturing process, the wire is cut into predetermined lengths and the cut wire is loaded into an automatic or semi-automatic punching machine. The upper punch in the punching machine's die applies pressure to the wire, causing it to form a predetermined head shape in the lower die.

[0003] The existing patent announcement number CN220127421U discloses a mold with an anti-stuck material function, which includes a base, a lower mold fixedly installed on the top of the base, an upper mold arranged on the top of the lower mold, and a controller fixedly installed on the left side of the lower mold. A crossbeam is provided on the top of the base, a punch head is fixedly installed on the bottom of the upper mold, a fixed structure is provided on the bottom of the upper mold, a cavity is provided inside the lower mold, and an ejection mechanism extending into the cavity is provided on the outside of the lower mold; the servo motor can be started by the controller so that its output shaft drives the lead screw to rotate and drives the moving block to move. At this time, the two moving blocks drive the two adjusting rods to approach each other, and the two adjusting rods approach each other to drive the sleeve to start rising, and the material is lifted up by the ejection plate.

[0004] The above mold can eject the material when in use, but the ejection efficiency still needs to be improved, and the setting of the ejection mechanism increases the structural height of the lower mold, and its practicality still needs to be improved. In view of the above problems, a stamping die for rapid demoulding of rivets is proposed. Utility Model Content

[0005] The utility model aims to provide a stamping die for rapid demoulding of rivets, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A stamping die for rapid demoulding of rivets, comprising an upper die and a lower die, wherein the top of the upper die is connected to a top seat;

[0008] A top plate is provided on the top of the lower mold, both ends of the top plate are connected to the mounting plate through mounting parts, a connecting column is slidably penetrated on the mounting plate, the top of the connecting column is connected to the top seat, a spring sleeved on the connecting column is provided between the mounting plate and the top seat, the connecting column extends to the bottom of the mounting plate to connect the limit block, and the lower mold is provided with a movable hole for the limit block to slide;

[0009] The lower mold is provided with a plurality of mold holes, and the top plate is provided with first through holes corresponding to the mold holes.

[0010] In an optional solution: the mounting member includes two groups of mounting bolts threadedly connected to the mounting plate, and the end of the top plate is provided with mounting screw holes corresponding to the mounting bolts.

[0011] In an optional solution: the mounting plate is provided with a second through hole for the connecting column to pass through, and the outer diameter of the limit block is larger than the inner diameter of the second through hole.

[0012] In an optional solution: a positioning bolt is threadedly connected to the limit block, and a positioning screw hole corresponding to the positioning bolt is provided at the bottom of the connecting column.

[0013] In an optional solution: the top end of the connecting column is connected to the top seat by screws, and the upper mold is connected to the top seat by bolts.

[0014] In an optional solution: a buffer pad is connected to the top plate and the bottom of the mounting plate.

[0015] In an optional solution: the bottom of the lower mold is connected to the base.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The top plate, the mounting plate, the connecting column and the spring are arranged in the utility model, so that when the upper die is punching and forming the rivet, the rivet head is placed on the top of the top plate for forming, and when the upper die is moved upward, the rivet can move with the top plate, which is conducive to the rapid separation of the rivet and the lower die, and reduces the arrangement of the inner parts of the lower die;

[0018] The top plate of the utility model is easy to disassemble, which is conducive to partial replacement and prolongs the overall service life of the mold;

[0019] The spring in the utility model can play a buffering role and simultaneously assist the top plate to separate from the upper die, which is beneficial to the removal of the rivet after forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the location where the limit block is set in the utility model.

[0022] Figure 3 It is a schematic diagram of the partial split structure of the utility model.

[0023] In the figure: 11, base; 12, lower mold; 13, upper mold; 14, top seat; 15, top plate; 16, mounting plate; 17, mold hole; 18, first through hole; 19, movable hole; 20, limit block; 21, connecting column; 22, spring; 23, positioning bolt; 24, second through hole; 25, mounting bolt. DETAILED DESCRIPTION

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] 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.

[0026] See also Figure 1-Figure 3 In this embodiment, a stamping die for rapid demoulding of rivets includes an upper die 13 and a lower die 12, wherein the top of the upper die 13 is connected to a top seat 14;

[0027] A top plate 15 is provided on the top of the lower mold 12, and both ends of the top plate 15 are connected to the mounting plate 16 through mounting parts. A connecting column 21 is slidably penetrated on the mounting plate 16, and the top of the connecting column 21 is connected to the top seat 14. A spring 22 sleeved on the connecting column 21 is provided between the mounting plate 16 and the top seat 14. The connecting column 21 extends to the bottom of the mounting plate 16 and is connected to the limit block 20. The lower mold 12 is provided with a movable hole 19 for the limit block 20 to slide.

[0028] The lower die 12 is provided with a plurality of die holes 17, and the top plate 15 is provided with a first through hole 18 corresponding to the die holes 17;

[0029] In this embodiment, the wire to be punched is placed in the die hole 17, and the first perforation 18 can pass the wire. When the upper die 13 is punched, the end of the wire is punched into shape, that is, the formed rivet head is placed on the top of the top plate 15. In actual use, a die groove corresponding to the rivet head can be opened at the position corresponding to the first perforation 18 on the top of the top plate 15. Then the upper die 13 is away from the lower die 12, and the mounting plate 16 is driven to rise through the connecting column 21. The top plate 15 is raised to move the rivet out of the lower die 12, and the spring 22 can squeeze the mounting plate 16 away from the upper die 13, and then the rivet is conveniently removed from the top plate 15.

[0030] In another embodiment, the mounting member includes two sets of mounting bolts 25 threadedly connected to the mounting plate 16, and the end of the top plate 15 is provided with mounting screw holes corresponding to the mounting bolts 25;

[0031] The mounting plate 16 and the top plate 15 can be connected and fixed by using mounting bolts 25. The mounting plate 16 is installed on the connecting column 21. The top plate 15 can be placed between two groups of mounting plates 16. Since the top of the top plate 15 is easily damaged by impact, it is convenient to replace the top plate 15 separately later, thereby extending the overall service life of the mold.

[0032] In another embodiment, the mounting plate 16 is provided with a second through hole 24 for the connecting column 21 to pass through, and the outer diameter of the limiting block 20 is larger than the inner diameter of the second through hole 24; the mounting plate 16 can move on the connecting column 21, and due to the limitation of the limiting block 20, the mounting plate 16 will not separate from the connecting column 21.

[0033] In another embodiment, a positioning bolt 23 is threadedly connected to the limit block 20, and a positioning screw hole corresponding to the positioning bolt 23 is provided at the bottom of the connecting column 21; the positioning bolt 23 facilitates the connection and fixation of the limit block 20 and the connecting column 21, and the limit block 20 and the connecting column 21 are released, which facilitates the removal of the mounting plate 16 from the connecting column 21.

[0034] In another embodiment, the top end of the connecting column 21 is connected to the top seat 14 via screws, and the upper mold 13 is connected to the top seat 14 via bolts; the connecting column 21 and the upper mold 13 are both easy to disassemble.

[0035] In another embodiment, a buffer pad is connected to the bottom of the top plate 15 and the mounting plate 16 ; the buffer pad can play a buffering role to reduce impact damage to the top plate 15 and the mounting plate 16 .

[0036] In another embodiment, the bottom of the lower die 12 is connected to the base 11; in actual use, corresponding bolts can be used to connect the lower die 12 and the base 11, and the base 11 can be installed on the stamping equipment.

[0037] When the utility model is used, the wire to be punched is placed in the die hole 17, and the first through hole 18 can pass the wire. When the upper die 13 is punched, the end of the wire is punched into shape, that is, the formed rivet head is placed on the top of the top plate 15. In actual use, a die groove corresponding to the rivet head can be opened at the position corresponding to the first through hole 18 on the top of the top plate 15. Then the upper die 13 is away from the lower die 12, and the mounting plate 16 is driven to rise through the connecting column 21. The top plate 15 is raised to move the rivet out of the lower die 12, and the spring 22 can squeeze the mounting plate 16 away from the upper die 13, and then the rivet is conveniently taken out of the top plate 15.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A stamping die for rapid demoulding of rivets, comprising an upper die (13) and a lower die (12), wherein the top of the upper die (13) is connected to a top seat (14); Features: A top plate (15) is provided on the top of the lower mold (12), and both ends of the top plate (15) are connected to the mounting plate (16) through mounting parts. A connecting column (21) is slidably penetrated on the mounting plate (16), and the top of the connecting column (21) is connected to the top seat (14). A spring (22) sleeved on the connecting column (21) is provided between the mounting plate (16) and the top seat (14). The connecting column (21) extends to the bottom of the mounting plate (16) and is connected to a limit block (20). A movable hole (19) for sliding the limit block (20) is provided on the lower mold (12); The lower mold (12) is provided with a plurality of mold holes (17), and the top plate (15) is provided with first through holes (18) corresponding to the mold holes (17).

2. A stamping die for rapid demoulding of rivets according to claim 1, characterized in that: The mounting member comprises two groups of mounting bolts (25) threadedly connected to the mounting plate (16); the end of the top plate (15) is provided with mounting screw holes corresponding to the mounting bolts (25).

3. A stamping die for rapid demoulding of rivets according to claim 1, characterized in that: The mounting plate (16) is provided with a second through hole (24) for the connecting column (21) to pass through, and the outer diameter of the limit block (20) is greater than the inner diameter of the second through hole (24).

4. A stamping die for rapid demoulding of rivets according to claim 1, characterized in that: The limit block (20) is threadedly connected to a positioning bolt (23), and the bottom of the connecting column (21) is provided with a positioning screw hole corresponding to the positioning bolt (23).

5. The punching die for rapid demoulding of rivets according to claim 1, characterized in that: The top end of the connecting column (21) is connected to the top seat (14) via screws, and the upper mold (13) is connected to the top seat (14) via bolts.

6. A stamping die for rapid demoulding of rivets according to claim 1, characterized in that: The top plate (15) and the bottom of the mounting plate (16) are connected to a buffer pad.

7. The punching die for rapid demoulding of rivets according to claim 1, characterized in that: The bottom of the lower mold (12) is connected to the base (11).

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