Demolding mechanism for injection molding part

Abstract

The utility model discloses a demoulding mechanism for an injection molding part, which relates to the technical field of injection molding demoulding and comprises a first fixing tool, a moving groove is arranged in the first fixing tool, a first connecting block is arranged in the moving groove, a second connecting block is movably arranged in the first connecting block, and the second connecting block is arranged in the moving groove. An air cylinder is arranged on the side face, corresponding to the second connecting block, of the first fixing tool, the second connecting block is connected with the output end of the air cylinder through a pushing screw rod, a pin for removing the second fixing tool is movably installed in the first connecting block, and a sliding groove is formed in the inner wall, corresponding to the first connecting block, of the moving groove; and a connecting groove is formed in the bottom surface of the first fixing tool corresponding to the pin, so that the connection among the first connecting block, the pin, the first fixing tool and other parts is simpler and clearer, the modular design is favorably realized, the later maintenance and replacement work is also facilitated, and the maintenance efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding demoulding, in particular to a demoulding mechanism for injection molded parts. Background Art

[0002] In home decoration, the junction box is one of the electrical auxiliary materials, because the wires used for decoration are passed through the wire conduit, and the junction box is used as a transition at the joint of the wires (for example, the line is relatively long, or the wire conduit needs to turn a corner). The wire conduit is connected to the junction box, and the wires in the wire conduit are connected in the junction box, which plays the role of protecting the wires and connecting the wires. This is the junction box.

[0003] The existing technology has the following problems: during the demolding process of the junction box, the material is demolded using the demolding structure in the mold. Since the demolding structure in the mold is an integrated molding structure, the modularity of the demolding structure is not high. When the demolding structure is damaged, production needs to be stopped for a long time for maintenance, which leads to low maintenance efficiency. Summary of the invention

[0004] In order to solve the above technical problems, a demoulding mechanism for injection molded parts is provided, which solves the above-mentioned problem of low maintenance efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A demolding mechanism for injection molded parts includes a first fixed tool, a movable groove is opened inside the first fixed tool, a first connecting block is arranged inside the movable groove, a second connecting block is movably installed inside the first connecting block, a cylinder is arranged on the side of the first fixed tool corresponding to the second connecting block, the second connecting block is connected to the output end of the cylinder by a push screw, and a pin for removing the second fixed tool is movably installed inside the first connecting block.

[0007] Preferably, a sliding groove is provided on the inner wall of the movable groove corresponding to the first connecting block, a connecting groove is provided on the bottom surface of the first fixed tool corresponding to the pin, and a placement groove is provided on the side of the upper surface of the first fixed tool away from the cylinder.

[0008] Preferably, the pin comprises an insertion rod, an end surface of the insertion rod is provided with a rounded corner, and a connecting rod is fixedly mounted on the bottom end of the insertion rod.

[0009] Preferably, slide plates are fixedly installed on both sides of the first connecting block corresponding to the slide groove, an insertion groove is provided through the upper surface of the first connecting block corresponding to the pin, an installation groove is provided inside the insertion groove corresponding to the connecting rod, a through groove corresponding to the second connecting block is provided through the inside of the first connecting block, and an inclined surface is provided on the surface of the first connecting block corresponding to the insertion groove.

[0010] Preferably, the second connecting block and one end of the push screw are interference fit, and the fit accuracy is 0-1 mm.

[0011] Preferably, the first connecting block is made of NAK80 steel.

[0012] Preferably, the inclination angle of the slope is 15°.

[0013] Preferably, the cross-sectional shape of the second connecting block is T-shaped.

[0014] Compared with the prior art, the advantages of the utility model are: the utility model is provided with a first fixed tooling, a movable groove, a first connecting block, a second connecting block, a cylinder and a push screw. This design makes the connection between the first connecting block, the pin and the first fixed tooling and other components simpler and clearer, is conducive to realizing modular design, and is also helpful for later maintenance and replacement work, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the first fixing tool in the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the pin in the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the second connecting block in the utility model;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the second connecting block in the utility model.

[0021] The numbers in the figure are: 1. first fixed tool; 2. movable groove; 3. first connecting block; 4. second connecting block; 5. cylinder; 6. push screw; 7. pin; 8. slide groove; 9. connecting groove; 10. placement groove; 11. insertion rod; 12. fillet; 13. connecting rod; 14. slide plate; 15. insertion groove; 16. installation groove; 17. through groove; 18. inclined surface; 19. second fixed tool. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] Reference Figure 1-6 As shown, a demoulding mechanism for injection molded parts comprises a first fixed fixture 1, the first fixed fixture 1 serves as the main body of the device, a movable groove 2 is provided inside the first fixed fixture 1, a first connecting block 3 is provided inside the movable groove 2, a second connecting block 4 is movably installed inside the first connecting block 3, a cylinder 5 is provided on the side of the first fixed fixture 1 corresponding to the second connecting block 4, the cylinder 5 serves as a power source for the device, the second connecting block 4 is connected to the output end of the cylinder 5 through a push screw 6, a pin 7 for removing the second fixed fixture 19 is movably installed inside the first connecting block 3, and the cylinder 5 drives the second connecting block 4 and the first connecting block 3 to move along the movable groove 2 through the push screw 6 to remove the second fixed fixture (19) in the material.

[0024] like Figure 3 As shown, a slide groove 8 is provided on the inner wall of the movable groove 2 corresponding to the first connecting block 3, a connecting groove 9 is provided on the bottom surface of the first fixed fixture 1 corresponding to the pin 7, and a placement groove 10 is provided on the side of the upper surface of the first fixed fixture 1 away from the cylinder 5. The placement groove 10 reduces the probability of damage to the material when the staff removes the second fixed fixture (19) in the material.

[0025] like Figure 4 As shown, the pin 7 includes an insertion rod 11, and the end face of the insertion rod 11 is provided with a rounded corner 12. The rounded corner 12 facilitates the insertion of the pin 7 into the second fixing tool 19. A connecting rod 13 is fixedly installed at the bottom end of the insertion rod 11. The diameter of the connecting rod 13 is larger than the diameter of the insertion rod 11, so that the insertion rod 11 is further limited when the insertion rod 11 is installed.

[0026] like Figure 5-6 As shown, slide plates 14 are fixedly installed on both sides of the first connecting block 3 corresponding to the slide groove 8. The matching design of the slide plate 14 and the slide groove 8 ensures the stable sliding of the first connecting block 3 in the movable groove 2. The slide plate 14 moves along the trajectory of the slide groove 8, effectively limiting the moving direction and position of the first connecting block 3, avoiding deviation or shaking during the movement, thereby improving the stability and reliability of the demolding mechanism. An insertion groove 15 is provided on the upper surface of the first connecting block 3 corresponding to the pin 7, and an installation groove 16 is provided inside the insertion groove 15 corresponding to the connecting rod 13. When installing the pin 7, the insertion rod 11 passes through the installation groove 16 and the insertion groove 15 in turn, so that the connecting rod 13 enters the installation groove 16 and is fixed. A through groove 17 corresponding to the second connecting block 4 is provided inside the first connecting block 3, and the through groove 17 facilitates the installation and removal of the second connecting block 4. An inclined surface 18 is provided on the surface of the first connecting block 3 corresponding to the insertion groove 15, and the inclined surface 18 facilitates the placement of the second fixing tooling 19.

[0027] like Figure 1-2As shown, the second connecting block 4 and one end of the push screw 6 adopt an interference fit, and the fitting accuracy is 0~1mm. The interference fit can provide a simple structure to make the assembly process relatively easy. At the same time, due to its good centering property, it can ensure the precise alignment between the parts, thereby improving the stability of the entire system. The interference fit connection method can carry a larger load because it expands and deforms the hole through the elasticity of the material and is sleeved on the shaft. When the hole is restored, it generates a clamping force on the shaft, making the two parts more tightly connected.

[0028] like Figure 5-6 As shown, the material of the first connecting block 3 is NAK80 steel, which has the following advantages: 1. High hardness and high wear resistance: NAK80 steel can achieve a higher hardness after heat treatment; 2. Good cutting performance: NAK80 steel has very good processing performance, is easy to cut, mill and drill, and can meet various requirements of mold processing; 3. Good thermal stability: NAK80 steel has good thermal stability at high temperatures and is not easy to deform; 4. Good polishing and carving properties: NAK80 steel has good polishing and carving properties, which makes it very suitable for manufacturing molds that require high-precision surfaces; 5. Excellent corrosion resistance and high temperature resistance: NAK80 steel has a stable chemical composition, is not easily corroded, and can be used in humid or corrosive environments. At the same time, it also has high temperature stability and can maintain stable mechanical properties and dimensional accuracy in high temperature environments.

[0029] like Figure 5-6 As shown, the inclination angle of the inclined surface 18 is 15°. The inclination angle of 15° can make the bottom surface of the second fixing fixture 19 more tightly combined and make the force on the second fixing fixture 19 more uniform.

[0030] like Figure 2As shown, the cross-sectional shape of the second connecting block 4 is T-shaped, and the cross-sectional shape of the second connecting block 4 is T-shaped, which has the following advantages: 1. Saving materials: The T-shaped cross-sectional design can reduce the amount of materials while maintaining the structural strength and stability of the connecting block. This is because the T-shaped cross-sectional design can effectively utilize materials and concentrate the materials in the areas that need to bear stress, thereby improving the efficiency of material use; 2. Reducing deadweight: Since the T-shaped cross-sectional design reduces unnecessary materials, its deadweight is lighter than that of connecting blocks with other cross-sectional shapes, which helps to reduce the load of the entire structure or equipment and reduce the requirements for the supporting structure, while also helping to reduce energy consumption and transportation costs; 3. Improving structural strength: The T-shaped cross-sectional design enables the connecting block to have higher bending strength when subjected to lateral loads. Since the upper and lower parts of the T-shaped cross-sectional design can withstand tension and pressure respectively, they can better resist the effects of external forces and improve the overall stability and safety of the structure; 4. Easy to process and install: The T-shaped cross-sectional design makes the connecting block more convenient and quick during processing and installation.

[0031] Working principle: The staff places the material in the first fixed tooling 1, and the waste in the material is placed in the placement groove 10. The cylinder 5 pushes the second connecting block 4 along the axial direction of the pushing screw 6. The second connecting block 4 pushes the first connecting block 3 to move along the movable groove 2. At the same time, the pin 7 in the first connecting block 3 pushes the second fixed tooling 19 to leave the material.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A demoulding mechanism for injection molded parts, comprising a first fixing device (1), characterized in that: A movable groove (2) is provided inside the first fixed fixture (1), a first connecting block (3) is provided inside the movable groove (2), a second connecting block (4) is movably installed inside the first connecting block (3), a cylinder (5) is provided on the side of the first fixed fixture (1) corresponding to the second connecting block (4), the second connecting block (4) is connected to the output end of the cylinder (5) via a push screw (6), and a pin (7) for removing the second fixed fixture (19) is movably installed inside the first connecting block (3).

2. A demoulding mechanism for injection molded parts according to claim 1, characterized in that: A sliding groove (8) is provided on the inner wall of the movable groove (2) corresponding to the first connecting block (3), a connecting groove (9) is provided on the bottom surface of the first fixed fixture (1) corresponding to the pin (7), and a placement groove (10) is provided on the side of the upper surface of the first fixed fixture (1) away from the cylinder (5).

3. A demoulding mechanism for injection molded parts according to claim 2, characterized in that: The pin (7) comprises an insertion rod (11), the end surface of the insertion rod (11) is provided with a rounded corner (12), and the bottom end of the insertion rod (11) is fixedly mounted with a connecting rod (13).

4. A demoulding mechanism for injection molded parts according to claim 3, characterized in that: Slide plates (14) are fixedly installed on both sides of the first connecting block (3) corresponding to the sliding groove (8); an insertion groove (15) is provided through the upper surface of the first connecting block (3) corresponding to the pin (7); a mounting groove (16) is provided inside the insertion groove (15) corresponding to the connecting rod (13); a through groove (17) corresponding to the second connecting block (4) is provided inside the first connecting block (3); and an inclined surface (18) is provided on the surface of the first connecting block (3) corresponding to the insertion groove (15).

5. The demoulding mechanism for injection molded parts according to claim 1, characterized in that: The second connecting block (4) and one end of the push screw (6) are interference fit, and the fit accuracy is 0 to 1 mm.

6. The demoulding mechanism for injection molded parts according to claim 1, characterized in that: The first connecting block (3) is made of NAK80 steel.

7. The demoulding mechanism for injection molded parts according to claim 4, characterized in that: The inclination angle of the inclined surface (18) is 15°.

8. The demoulding mechanism for injection molded parts according to claim 1, characterized in that: The cross-sectional shape of the second connecting block (4) is T-shaped.

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