Demoulding structure of mould punching machine

Abstract

The utility model relates to a demoulding structure of a mould punching machine, which belongs to the technical field of mould punching machines and comprises a punching machine and a mould positioned on the punching machine. The die comprises an upper die base fixedly installed on the top wall of the punching machine, an upper punching block fixedly installed on the upper die base, a lower die base arranged on the hydraulic table and a lower punching block fixedly installed on the lower die base. According to the demolding structure of the mold punching machine, the lower mold base which is originally fixedly installed is installed through the demolding frame, meanwhile, the forming plate for punching and forming a product and the lower mold base are connected in a buckled mode through the bending rod, on one hand, one-time demolding between the product and the upper mold can be achieved through separation of the upper mold and the lower mold, and on the other hand, the demolding efficiency is improved; and on the other hand, the air cylinder is arranged to pull the lower mold base and the demolding frame to move, secondary demolding between the product and the lower mold can be achieved, the demolded product cannot directly fall off, demolding is rapid and convenient, the applicability to the product is wide, and the product cannot be damaged.

Description

Technical Field

[0001] The present application relates to the technical field of die stamping machines, and particularly to a demoulding structure of a die stamping machine. Background Technique

[0002] A die stamping machine is a device used for stamping and processing metal materials. The die stamping machine stamps metal sheets or strips into parts with specific shapes through dies, and has the characteristics of high efficiency, precision, and stability.

[0003] After the stamping stroke of the die stamping machine, there is a demoulding process for the product. After retrieval, the utility model with the publication number CN218744404U relates to the technical field of auxiliary devices for automobile production, and particularly to a demoulding structure of a door pillar stamping die, which can very conveniently assist in demoulding the product, saving time and effort, and improving the stamping efficiency of the product. It includes a stamping machine and an upper die, and the upper die is installed on the stamping machine; it also includes an automatic demoulding component, which includes a bracket, a slide rail, a slider, a set screw, a pushing cylinder, and a U-shaped pushing plate. The bracket is installed at the right end of the upper die, the slide rail is installed at the bottom end of the bracket, the slider is slidably connected to the slide rail, a through threaded hole is provided at the front end of the slider, the set screw is threadedly connected to the threaded hole, and the rear end of the set screw is in close contact with the front end of the slide rail. The pushing cylinder is installed at the bottom end of the slider, and the U-shaped pushing plate is installed at the output end of the pushing cylinder, and the inner side of the U-shaped pushing plate is in close contact with the outer side of the upper die.

[0004] The above technology completes the demoulding process of the product by setting a lateral feeding method. Since the products stamped by the die of the stamping machine mostly have structures such as inner cavity grooves, the degree of fit between the product and the die is high. At the same time, due to multiple bends and fits between the product and the die, the demoulding structure in the above technology has poor applicability and is difficult to apply to general product structures. Therefore, a demoulding structure of a die stamping machine is proposed to solve the above problems. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the present application provides a demoulding structure of a die stamping machine, which has the advantages of convenient demoulding and vertical demoulding being applicable to most products.

[0006] To achieve the above object, the present application provides the following technical solution: A demoulding structure of a die stamping machine, including a stamping machine;

[0007] A die located on the stamping machine, a guide rod is fixedly installed on the stamping machine, a hydraulic table is slidably installed on the guide rod, the die is arranged between the hydraulic table and the inner top wall of the stamping machine, and the die includes an upper die base fixedly installed on the top wall of the stamping machine, an upper punch block fixedly installed on the upper die base, a lower die base arranged on the hydraulic table, and a lower punch block fixedly installed on the lower die base;

[0008] The demolding structure includes a demolding frame fixedly installed on the hydraulic table and a forming plate fitted to the demolding frame. A fixing rod is fixedly installed at the top of the demolding frame. The fixing rod penetrates through the lower die base and is slidably connected to the lower die base. A cylinder for pulling the lower die base to move to perform secondary demolding is also fixedly installed on the demolding frame. The piston rod end of the cylinder is fixedly connected to the lower die base;

[0009] A demolding structure is provided on the hydraulic table to assist in ejecting the product. Extension frames are fixedly installed on both the left and right sides of the forming plate. A bending rod is rotatably installed on the extension frame. An installation plate is fixedly installed on the side of the upper die base. A roller fitted to the bending rod is rotatably installed on the installation plate.

[0010] Furthermore, a connecting rod slidably connected to the upper die base is also fixedly installed on the forming plate. A limiting groove for restricting the extreme position of the movement of the connecting rod is formed at the top of the upper die base. The end protrusion of the connecting rod is slidably connected to the limiting groove.

[0011] Furthermore, the bent end of the bending rod extends upward and fits against the roller. A spring for pushing the bending rod is also connected between the bending rod and the forming plate.

[0012] Furthermore, a groove is formed on the surface of the bending rod. An installation block is rotatably installed in the groove. One end of the spring is fixedly connected to the installation block, and the other end is fixedly connected to the forming plate.

[0013] Furthermore, a trapezoidal block is fixedly installed on the side of the lower die base. A buckle is integrally connected to the lower end of the bending rod. The buckle is buckled on the block.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] The demolding structure of the die stamping machine installs the original fixedly installed lower die base through the demolding frame, and at the same time sets the forming plate for stamping and forming the product and the lower die base to be buckled and connected through the bending rod. On the one hand, it can realize the primary demolding between the product and the upper die by separating the upper die and the lower die. On the other hand, by setting the cylinder to pull the lower die base and the demolding frame to move, the secondary demolding between the product and the lower die can be realized, and the demolded product will not fall directly, making the demolding fast and convenient, with wide applicability to products and no damage to the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2This is an enlarged structural view of the mold of the present application;

[0018] Figure 3 This is a three-dimensional structural view of the bending rod of the present application.

[0019] In the figure: 1. Press; 2. Guide rod; 3. Hydraulic table; 4. Upper die base; 5. Upper punch block; 6. Lower die base; 7. Lower punch block; 8. Demolding frame; 81. Fixed rod; 82. Top plate; 83. Cylinder; 9. Limit groove; 10. Connecting rod; 11. Forming plate; 12. Extension frame; 13. Bending rod; 131. Buckle; 132. Block; 14. Mounting plate; 15. Roller; 16. Spring; 17. Groove; 18. Mounting block. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0021] Please refer to Figures 1 to 3 , a demolding structure of a mold press in this embodiment includes a press 1 and a mold located on the press 1. Among them, a guide rod 2 is fixedly installed on the press 1, a hydraulic table 3 is slidably installed on the guide rod 2, and the mold is arranged between the hydraulic table 3 and the inner top wall of the press 1. By pushing the hydraulic table 3 to move through the hydraulic system in the press 1, the mold can be closed and pressed.

[0022] In this embodiment, the mold includes an upper die base 4 fixedly installed on the top wall of the press 1, an upper punch block 5 fixedly installed on the upper die base 4, a lower die base 6 arranged on the hydraulic table 3, and a lower punch block 7 fixedly installed on the lower die base 6.

[0023] In specific implementation, the stamping of materials can be completed by the mutual closing of the upper die base 4 and the lower die base 6.

[0024] It should be noted that a demolding structure is provided on the hydraulic table 3 to assist in demolding the product. The demolding structure includes a demolding frame 8 fixedly installed on the hydraulic table 3 and a forming plate 11 cooperating with the demolding frame 8. Among them, a forming cavity for stamping and forming the product is penetrated and opened on the forming plate 11.

[0025] In this embodiment, a fixed rod 81 is fixedly installed at the top of the demolding frame 8. The fixed rod 81 penetrates through the lower die base 6 and is slidably connected to the lower die base 6. At this time, the lower die base 6 can move relative to the demolding frame 8.

[0026] Further, a top plate 82 is fixedly installed at one end of the fixed rod 81 away from the demolding frame 8. The top plate 82 and the demolding frame 8 are connected by the fixed rod 81 to form a rectangular frame structure, so that the lower mold base 6 can be arranged on the hydraulic table 3 along with the demolding frame 8.

[0027] Specifically, when the product is ejected from the forming plate 11 and fitted outside the lower punch block 7, the lower mold base 6 can slide relative to the fixed rod 81, so that the product is extruded by the top plate 82 and ejected onto the surface of the top plate 82.

[0028] In this embodiment, a cylinder 83 for pulling the lower mold base 6 to move for secondary demolding is also fixedly installed on the demolding frame 8. The piston rod end of the cylinder 83 is fixedly connected to the lower mold base 6.

[0029] It should be noted that a connecting rod 10 slidably connected to the upper mold base 4 is also fixedly installed on the forming plate 11. A limiting groove 9 for limiting the extreme position of the movement of the connecting rod 10 is provided at the top of the upper mold base 4. The end protrusion of the connecting rod 10 is slidably connected to the limiting groove 9.

[0030] By providing the limiting groove 9 and the connecting rod 10, the forming plate 11 attached to the surface of the upper mold base 4 can move vertically relative to the upper mold base 4.

[0031] In order to synchronously pull the forming plate 11 by the lower mold base 6 to complete the first demolding relative to the upper mold base 4, extension frames 12 are fixedly installed on both the left and right sides of the forming plate 11 in this embodiment. A bending rod 13 is rotatably installed on the extension frame 12. An installation plate 14 is fixedly installed on the side surface of the upper mold base 4. A roller 15 fitting the bending rod 13 is rotatably installed on the installation plate 14.

[0032] Further, the bent end of the bending rod 13 extends upward and fits the roller 15. A spring 16 for pushing the bending rod 13 is also connected between the bending rod 13 and the forming plate 11.

[0033] Preferably, a groove 17 is provided on the surface of the bending rod 13. An installation block 18 is rotatably installed in the groove 17. One end of the spring 16 is fixedly connected to the installation block 18, and the other end is fixedly connected to the forming plate 11. Through the movable design of the installation block 18, when the bending rod 13 rotates, the spring 16 can adaptively change the angle.

[0034] In specific implementation, by pushing the bending rod 13 with the spring 16, one end of the bending rod 13 can be made to roll while fitting the roller 15.

[0035] In this embodiment, a trapezoidal block 132 is also fixedly installed on the side surface of the lower mold base 6. A buckle 131 is integrally connected to the lower end of the bending rod 13, and the buckle 131 is buckled on the block 132.

[0036] In this application, through the engagement of the buckle 131 and the clamping block 132, the forming plate 11 can move synchronously with the lower die base 6 relative to the upper die base 4, realizing one-time demolding.

[0037] The working principle of the above embodiment is as follows:

[0038] During a stamping process, the mold is restored to the initial station. The cylinder 83 pushes the lower die base 6 along the fixed rod 81 to abut against the lower surface of the top plate 82, and the lower punch block 7 on the lower die base 6 passes through the top plate 82 and extends to the surface of the top plate 82. The hydraulic table 3 is controlled to approach the inner top wall of the stamping machine 1, so that the product is stamped to form a special-shaped structure between the upper punch block 5, the inner cavity of the forming plate 11, and the lower punch block 7.

[0039] First, by controlling the hydraulic table 3 to move away from the stamping block 1, at this time, the lower end of the bending rod 13 rotatably connected to the outside of the forming plate 11 is engaged with the clamping block 132 on the side of the lower die base 6 through the integrated buckle 131. Therefore, when the lower die base 6 moves away from the upper die base 4 along with the demolding frame 8 and the hydraulic table 3, it can synchronously drive the forming plate 11 to separate from the upper die base 4. At this time, it is one-time demolding, enabling the product to be separated from the upper punch block 5, and the product can be located between the inner cavity of the forming plate 11 and the lower punch block 7.

[0040] During the downward movement of the forming plate 11 along with the lower die base 6, the bending rod 13 continuously rolls relative to the roller 15 and continuously rotates relative to the extension frame 12 until the buckle 131 at the lower end of the bending rod 13 disengages from the clamping block 132. At this time, the product can be separated from the inner cavity of the forming plate 11 and engaged with the outside of the lower punch block 7.

[0041] Then, by controlling the cylinder 83 to pull the lower die base 6 to approach the hydraulic table 3, the product is extruded by the top plate 82 to be removed from the surface of the lower punch block 7 to complete secondary demolding, and is placed on the top of the top plate 82. The whole process is smooth and fast.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0043] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A demoulding structure of a die punching machine, comprising a punching machine (1); A die is located on the punching machine (1), a guide rod (2) is fixedly mounted on the punching machine (1), a hydraulic platform (3) is slidably mounted on the guide rod (2), the die is arranged between the hydraulic platform (3) and the inner top wall of the punching machine (1), and the die comprises an upper die seat (4) fixedly mounted on the top wall of the punching machine (1), an upper punch block (5) fixedly mounted on the upper die seat (4), a lower die seat (6) arranged on the hydraulic platform (3), and a lower punch block (7) fixedly mounted on the lower die seat (6); Features: The demoulding structure comprises a demoulding frame (8) fixedly mounted on the hydraulic platform (3) and a forming plate (11) matched with the demoulding frame (8); a fixing rod (81) is fixedly mounted on the top of the demoulding frame (8); the fixing rod (81) passes through the lower mold base (6) and is slidably connected relative to the lower mold base (6); a cylinder (83) for pulling the lower mold base (6) to perform secondary demoulding is also fixedly mounted on the demoulding frame (8); a piston rod end of the cylinder (83) is fixedly connected to the lower mold base (6); The hydraulic table (3) is provided with a demoulding structure for assisting in the demoulding of the product. Extension frames (12) are fixedly mounted on both left and right sides of the forming plate (11), and a bending rod (13) is rotatably mounted on the extension frame (12). A mounting plate (14) is fixedly mounted on the side of the upper mold base (4), and a roller (15) that is rotatably mounted on the mounting plate (14) and is in contact with the bending rod (13).

2. The demoulding structure of a mold punching machine according to claim 1, characterized in that: A connecting rod (10) slidably connected to the upper die seat (4) is also fixedly mounted on the forming plate (11); a limiting groove (9) for limiting the movable limit position of the connecting rod (10) is provided on the top of the upper die seat (4); and an end protrusion of the connecting rod (10) is slidably connected to the limiting groove (9).

3. The demoulding structure of a mold punching machine according to claim 1, characterized in that: The bent end of the bending rod (13) extends upward and fits against the roller (15), and a spring (16) for pushing the bending rod (13) is also connected between the bending rod (13) and the forming plate (11).

4. The demoulding structure of a mold punching machine according to claim 3, characterized in that: A groove (17) is provided on the surface of the bending rod (13), a mounting block (18) is rotatably mounted in the groove (17), one end of the spring (16) is fixedly connected to the mounting block (18), and the other end is fixedly connected to the forming plate (11).

5. The demoulding structure of a mold punching machine according to claim 1, characterized in that: A trapezoidal clamping block (132) is fixedly mounted on the side of the lower die seat (6), and a buckle (131) is integrally connected to the lower end of the bending rod (13), and the buckle (131) is buckled with the clamping block (132).

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