Sliding block type secondary ejection mold

Abstract

The utility model discloses a sliding block type secondary ejection mold which comprises a lower mold base, a cavity is formed in the middle of the upper end of the lower mold base, a sliding groove and a positioning plate are arranged on the outer surface of one side of the lower mold base, a large sliding block is installed in the middle of the sliding groove in a sliding mode, and guide grooves are symmetrically formed in the front portion and the rear portion of the upper surface of the large sliding block. The utility model has the advantages that as the large sliding block and the small sliding block are arranged, the small sliding block moves in the guide groove arranged on the large sliding block through the guide block under the action of the external hydraulic cylinder to be separated from the inverted buckle, and the large sliding block stops a product to prevent the product from being pulled and deformed; the air cylinder is started, the piston rod drives the large sliding block to be pulled out of the sliding groove, then the small sliding block is driven to be integrally separated from the inverted buckle, secondary product ejection of the mold is achieved, the quality of the product produced by the mold is guaranteed, the problems are effectively solved through application of the mold, and the practicability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a slider type secondary ejection mold. Background Art

[0002] There are many types of molds, including plastic molds, hardware molds, ceramic molds, etc. In modern industry, molds are known as the "mother of industry", and among so many mold categories, injection molds are the largest category. Mobile phones, computers, televisions, washing machines, air conditioners, automotive interior parts and automotive exterior plastic parts and many other products are inseparable from injection molded plastic products. With the development of the economy and the advancement of molds, customers have higher and higher requirements for plastic products. Plastic products must ensure the appearance, size and assembly requirements of the products.

[0003] However, in the existing technology, the mold is prone to causing product deformation during the ejection process, and the quality of the produced products cannot be guaranteed. The application of this mold effectively avoids the above problems and improves the practicality of the equipment. To this end, we propose a slider-type secondary ejection mold. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a slider type secondary ejection mold.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a slider-type secondary ejection mold, including a lower mold base, a mold cavity is opened in the middle of the upper end of the lower mold base, and a slide groove and a positioning plate are provided on the outer surface of one side of the lower mold base. The positioning plate is fixedly installed below the slide groove, and a large slider is slidably installed in the middle of the slide groove. A guide groove is symmetrically opened on the upper surface of the large slider in the front and back, and a guide block is provided between the guide groove and the small slider. The small slider is slidably connected to the guide groove through the guide block.

[0006] Preferably, jacks are provided at the four corners of the upper end of the lower die base, and the lower end of the lower die base is equipped with an ejector rod, a return spring rod and a die foot, the return spring rod is movably installed on the outside of the ejector rod, and the die foot is fixedly installed on the outside of the return spring rod symmetrically on the left and right, and fixed pipe holes are provided at equal intervals at the front and rear ends of the lower die base.

[0007] Preferably, a latch rod is provided between the jack and the upper die base, and the upper die base is movably connected to the jack via the latch rod.

[0008] Preferably, an ejector plate is fixedly mounted on the lower end of the ejector rod, the return spring rod is fixedly connected to the ejector plate, and a lower mold mounting plate is fixedly mounted on the lower end of the mold foot.

[0009] Preferably, a cylinder is fixedly mounted on the outer surface of the positioning plate away from the lower die base, a piston rod is installed through the output end of the cylinder, and the end of the piston rod away from the cylinder is fixedly connected to the large slider.

[0010] Preferably, a fluid guide tube is fixedly mounted corresponding to the middle portion of the fixed pipe hole, a gasification box is fixedly mounted on the front end of the fluid guide tube, and a fluid injection tube is fixedly mounted on the upper end of the gasification box.

[0011] Preferably, an upper mold mounting plate is fixedly mounted on the upper end of the upper mold base, a mold core is fixedly mounted on the lower end of the upper mold base corresponding to the mold cavity, and an injection tube is fixedly mounted on the upper end of the upper mold mounting plate.

[0012] With the above technical solution, due to the provision of a large slider and a small slider, the small slider moves out of the undercut through the guide block in the guide groove provided on the large slider under the action of an external hydraulic cylinder, and the large slider blocks the product to prevent the product from being pulled and deformed. When the cylinder is started, the piston rod drives the large slider out of the slide groove, thereby driving the small slider as a whole to be out of the undercut, realizing secondary ejection of the product from the mold, thereby ensuring the quality of the product produced by the mold;

[0013] Due to the provision of a gasification box, the mold release agent is injected into the gasification box through the injection pipe. After the gasification box works, the mold release agent is vaporized, and the vaporized mold release agent is sprayed on the inner wall of the cavity and the surface of the mold core after mold closing through the agent guide pipe inserted through the middle of the fixed pipe hole, which makes it convenient to demold the product after the mold is ejected, thereby improving the working efficiency of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural diagram of a slider type secondary ejection mold;

[0015] Figure 2 This utility model proposes a local explosion of a slider type secondary ejection mold Figure 1 ;

[0016] Figure 3 This utility model proposes a local explosion of a slider type secondary ejection mold Figure 2 ;

[0017] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 5 For this utility model Figure 3 Enlarged view of point B in the middle.

[0019] In the figure, 1. lower mold base; 2. mold cavity; 3. socket; 4. ejector rod; 5. return spring rod; 6. mold foot; 7. slide groove; 8. positioning plate; 9. fixed pipe hole; 10. upper mold base; 11. latch rod; 12. upper mold mounting plate; 13. mold core; 14. ejector plate; 15. lower mold mounting plate; 16. large slider; 17. guide groove; 18. small slider; 19. guide block; 20. cylinder; 21. piston rod; 22. agent guide tube; 23. vaporization box; 24. injection tube; 25. injection tube. DETAILED DESCRIPTION

[0020] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0021] Example 1, as Figure 1-Figure 5 As shown, the utility model provides a slider type secondary ejection mold, including a lower mold base 1, a mold cavity 2 is provided in the middle of the upper end of the lower mold base 1, a slide groove 7 and a positioning plate 8 are provided on the outer surface of one side of the lower mold base 1, and the positioning plate 8 is fixedly installed below the slide groove 7. A large slider 16 is slidably installed in the middle of the slide groove 7, and a guide groove 17 is symmetrically provided on the upper surface of the large slider 16. A guide block 19 is provided between the guide groove 17 and the small slider 18. The small slider 18 is slidably connected to the guide groove 17 through the guide block 19. Sockets 3 are provided at the four corners of the upper end of the lower mold base 1, and an ejector rod 4, a reset spring rod 5 and a mold foot 6 are installed at the lower end of the lower mold base 1. The reset spring rod 5 is movably installed on the outside of the ejector rod 4, and the mold foot 6 is fixedly installed on the left and right symmetrically on the reset spring rod 5. On the outside of the positioning spring rod 5, a pin rod 11 is provided between the socket 3 and the upper mold base 10, and the upper mold base 10 is movably connected to the socket 3 through the pin rod 11. The lower end of the ejector rod 4 is fixedly installed with an ejector plate 14, and the return spring rod 5 is fixedly connected to the ejector plate 14. The lower end of the mold foot 6 is fixedly installed with a lower mold mounting plate 15. The outer surface of the positioning plate 8 away from the lower mold base 1 is fixedly installed with a cylinder 20, and the output end of the cylinder 20 is penetrated by a piston rod 21. The end of the piston rod 21 away from the cylinder 20 is fixedly connected to the large slider 16, and the upper end of the upper mold base 10 is fixedly installed with an upper mold mounting plate 12. The lower end of the upper mold base 10 is fixedly installed with a mold core 13 corresponding to the cavity 2, and the upper end of the upper mold mounting plate 12 is fixedly installed with an injection tube 25.

[0022] Due to the provision of the large slider 16 and the small slider 18, the small slider 18 moves out of the undercut in the guide groove 17 provided on the large slider 16 through the guide block 19 under the action of the external hydraulic cylinder. The large slider 16 blocks the product to prevent the product from being pulled and deformed. The cylinder 20 is started, and the piston rod 21 drives the large slider 16 to be withdrawn from the slide groove 7, thereby driving the small slider 18 to be disengaged from the undercut as a whole, realizing the secondary ejection of the product from the mold, thereby ensuring the quality of the product produced by the mold. The application of this mold effectively avoids the above problems and improves the practicality of the equipment.

[0023] Example 2 is different from Example 1 in that Figure 1 、 Figure 2 and Figure 4 As shown, fixed pipe holes 9 are opened at equal intervals at the front and rear ends of the lower mold base 1, a fluid guide tube 22 is fixedly installed in the middle of the fixed pipe hole 9, a gasification box 23 is fixedly installed at the front end of the fluid guide tube 22, and an injection tube 24 is fixedly installed at the upper end of the gasification box 23.

[0024] Since the vaporization box 23 is provided, the release agent is injected into the vaporization box 23 through the injection pipe 24. After the vaporization box 23 works, the release agent is vaporized, and the vaporized release agent is sprayed on the inner wall of the cavity 2 and the surface of the mold core 13 after the mold is closed through the agent guide pipe 22 inserted through the middle of the fixed pipe hole 9, which makes it convenient to demold the product after the mold is ejected, thereby improving the working efficiency of the mold. The application of this mold effectively avoids the above problems and improves the practicality of the equipment.

[0025] The overall working principle is as follows: first, the upper mold mounting plate 12 and the lower mold mounting plate 15 are installed on the corresponding parts, then the upper mold base 10 is correspondingly inserted into the socket 3 of the lower mold base 1 through the latch rod 11 to complete the mold closing. After the mold is closed, the release agent injected into the gasification box 23 through the injection pipe 24 is gasified after the gasification box 23 works, and the gasified release agent is sprayed on the inner wall of the cavity 2 and the surface of the mold core 13 after the mold is closed through the guide pipe 22 inserted in the middle of the fixed pipe hole 9. Then, the release agent is injected into the cavity 2 after the mold is closed through the injection pipe 25. The liquid raw material is demoulded after cooling. Finally, the small slider 18 moves out of the undercut through the guide block 19 in the guide groove 17 on the large slider 16 under the action of the external hydraulic cylinder. The large slider 16 blocks the product to prevent it from being deformed. The cylinder 20 is started, and the piston rod 21 drives the large slider 16 to be withdrawn from the slide groove 7, thereby driving the small slider 18 to be detached from the undercut as a whole. Under the action of the external hydraulic pressure, the ejector plate 14 drives the ejector rod 4 to extend out of the cavity 2 to eject the product under the action of the return spring rod 5. The application of this mold effectively avoids the above problems and improves the practicality of the equipment.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A slider type secondary ejection mold, comprising a lower mold base (1), characterized in that: A cavity (2) is provided in the middle of the upper end of the lower die base (1); a slide groove (7) and a positioning plate (8) are provided on the outer surface of one side of the lower die base (1); the positioning plate (8) is fixedly installed below the slide groove (7); a large slider (16) is slidably installed in the middle of the slide groove (7); a guide groove (17) is symmetrically provided on the upper surface of the large slider (16) in front and back directions; a guide block (19) is provided between the guide groove (17) and the small slider (18); the small slider (18) is slidably connected to the guide groove (17) through the guide block (19).

2. The slider type secondary ejection mold according to claim 1, characterized in that: Insertion holes (3) are provided at the four corners of the upper end of the lower die base (1); an ejector rod (4), a return spring rod (5) and a die foot (6) are installed at the lower end of the lower die base (1); the return spring rod (5) is movably installed on the outer side of the ejector rod (4); the die foot (6) is symmetrically fixed on the outer side of the return spring rod (5); and fixed pipe holes (9) are evenly spaced at the front and rear ends of the lower die base (1).

3. A slider type secondary ejection mold according to claim 2, characterized in that: A latch rod (11) is provided between the insertion hole (3) and the upper die seat (10), and the upper die seat (10) is movably connected to the insertion hole (3) via the latch rod (11).

4. The slider type secondary ejection mold according to claim 2, characterized in that: An ejector plate (14) is fixedly mounted on the lower end of the ejector rod (4), the return spring rod (5) is fixedly connected to the ejector plate (14), and a lower mold mounting plate (15) is fixedly mounted on the lower end of the mold foot (6).

5. The slider type secondary ejection mold according to claim 1, characterized in that: A cylinder (20) is fixedly mounted on the outer surface of one side of the positioning plate (8) away from the lower die base (1), a piston rod (21) is installed through the output end of the cylinder (20), and one end of the piston rod (21) away from the cylinder (20) is fixedly connected to the large slider (16).

6. The slider type secondary ejection mold according to claim 2, characterized in that: A fluid guide tube (22) is fixedly mounted in the middle of the fixed tube hole (9), a gasification box (23) is fixedly mounted at the front end of the fluid guide tube (22), and a fluid injection tube (24) is fixedly mounted at the upper end of the gasification box (23).

7. The slider type secondary ejection mold according to claim 3, characterized in that: An upper mold mounting plate (12) is fixedly mounted on the upper end of the upper mold base (10), a mold core (13) is fixedly mounted on the lower end of the upper mold base (10) corresponding to the mold cavity (2), and an injection molding tube (25) is fixedly mounted on the upper end of the upper mold mounting plate (12).

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