A forming die for an accordion-like base

Abstract

This utility model discloses a molding die for an accordion-shaped bottom shell, including an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base, an upper template, and an upper mold core. The lower mold assembly includes a lower mold core, a lower template, and a lower mold base. The lower surface of the upper mold core is recessed with an upper cavity, and the upper surface of the lower mold core is protruded with a core protrusion. A lower cavity is formed around the core protrusion. The upper cavity and the lower cavity are adapted to form a cavity for molding a bottom shell with accordion-shaped sides. Four slider core-pulling mechanisms are provided between the upper template and the lower template. Each slider core-pulling mechanism includes a slider and a linkage block. The end face of the slider facing the cavity is provided with accordion-shaped molding teeth. The upper end of the linkage block passes through the upper template and connects to the upper mold base. The lower end of the linkage block has a linkage part that extends obliquely outward from top to bottom, and the linkage part passes through the slider. It can mold an accordion-shaped bottom shell to meet the user's personalized needs.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a molding mold for an accordion-shaped bottom shell. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. In short, molds are tools used to make shaped objects. These tools are composed of various parts, and different molds are composed of different parts. They mainly achieve the processing of the shape of objects by changing the physical state of the material being molded, and are known as the "mother of industry".

[0003] With the advancement of technology, the requirements for automated injection molding of the back shells of network equipment, terminal equipment, and other products are becoming increasingly stringent. Currently, the back shells of these products are typically manufactured using injection molding molds. While this method significantly improves production efficiency, existing injection molding molds for back shells generally include an upper mold base, an upper mold plate, an upper mold core, a lower mold core, a lower mold plate, and a lower mold base. An upper cavity and a lower cavity are respectively set in the upper and lower mold cores, fitting together to form the cavity for molding the back shell. Although this method can achieve the molding of the back shell, the resulting back shells have flat sides, making it difficult to meet the personalized needs of users.

[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a molding die for an accordion-shaped bottom shell, which can mold and produce an accordion-shaped bottom shell to meet the user's personalized needs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A molding die for an accordion-shaped base shell includes an upper mold assembly and a lower mold assembly connected to each other. The upper mold assembly includes an upper mold base, an upper mold plate, and an upper mold core arranged sequentially from top to bottom, with the upper mold core embedded in the lower surface of the upper mold plate. The lower mold assembly includes a lower mold core, a lower mold plate, and a lower mold base arranged sequentially from top to bottom, with the lower mold core embedded in the upper surface of the lower mold plate. The lower surface of the upper mold core has a recessed upper cavity, and the upper surface of the lower mold core has a protruding core protrusion. A lower cavity is formed around the periphery of the core protrusion. The upper cavity and the lower cavity are connected. A cavity is formed to accommodate the molded bottom shell with accordion-shaped sides. Four slider core-pulling mechanisms are provided between the upper and lower mold plates, surrounding the cavity. Each slider core-pulling mechanism includes a slider and a linkage block. The slider can move towards or away from the cavity. The end face of the slider facing the cavity is provided with accordion-shaped molding teeth. The upper end of the linkage block passes through the upper mold plate and connects to the upper mold base. The lower end of the linkage block has a linkage part that extends obliquely outward from top to bottom, and the linkage part passes through the slider.

[0008] As a preferred embodiment, the two pairs of side surfaces of the linkage part are oblique working surfaces extending obliquely outward from top to bottom, the slider has a through groove for the linkage part to pass through, the two opposite inner side surfaces of the through groove are oblique linkage surfaces extending obliquely outward from top to bottom, and the oblique linkage surfaces are in contact with the corresponding oblique working surfaces.

[0009] As a preferred embodiment, an inclined contact block is provided on the inclined working surface located on the inner side in the horizontal direction on the linkage part. The inclined contact block is detachably connected to the inclined working surface by a first locking screw. The inclined contact block has an inclined contact surface extending obliquely outward from top to bottom. The inclined contact surface protrudes outside the inclined working surface and contacts the corresponding inclined linkage surface.

[0010] As a preferred embodiment, the linkage block includes a main body, which is integrally connected to the lower end of the main body, and the upper end of the main body passes through the upper template and is connected to the upper mold base by a second locking screw.

[0011] As a preferred embodiment, a support plate assembly is provided between the lower template and the lower mold base. The support plate assembly includes two vertical plates, two horizontal plates, a shock-absorbing spring, and a connecting column. The two vertical plates are symmetrically spaced front to back. The two horizontal plates are stacked vertically and positioned between the front and back spacing of the two vertical plates. The two horizontal plates are locked together by positioning screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower template, and reaches the upper surface of the lower template. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring is sleeved on the connecting column. One end of the shock-absorbing spring abuts against the lower template, and the other end abuts against the upper horizontal plate.

[0012] As a preferred embodiment, a buffer space is formed between the lower template, the lower mold base, and the two vertical plates, and the two horizontal plates are located within the buffer space; the two horizontal plates are the upper horizontal plate and the lower horizontal plate, respectively; one end of the connecting column passes through the top of the upper horizontal plate, extends into the lower template, and extends to the upper surface of the lower template, while the other end is flush with the lower surface of the upper horizontal plate; one end of the shock-absorbing spring abuts against the bottom of the lower template, and the other end abuts against the top of the upper horizontal plate.

[0013] As a preferred embodiment, the distance between the lower transverse plate and the lower mold base is set, and a buffer pad is provided between the lower transverse plate and the lower mold base.

[0014] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves adapting the upper and lower cavities to form a cavity for molding a bottom shell with accordion-shaped sides. Four slider core-pulling mechanisms are arranged between the upper and lower mold plates, surrounding the cavity. Each slider core-pulling mechanism includes a slider and a linkage block. Accordion-shaped molding teeth are provided on the end face of the slider facing the cavity. The upper end of the linkage block passes through the upper mold plate and connects to the upper mold base. The lower end of the linkage block extends obliquely outward from top to bottom. The linkage part passes through the slider, allowing it to create an accordion-shaped bottom shell on all four sides through the accordion-shaped forming teeth of the slider. This enables the creation of an accordion-shaped bottom shell, satisfying the user's personalized needs. Furthermore, the upward movement of the upper mold base drives the linkage block to move upward, which in turn moves the slider through the linkage part. Since the linkage part extends outward at an angle, its upward movement causes the slider to move outward for core pulling. This achieves a slider core pulling structure design, eliminating the need for a cylinder, reducing space occupation, minimizing subsequent maintenance, and ensuring the service life of the mold.

[0015] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model from another angle;

[0018] Figure 3 This is a partial three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the slider core-pulling mechanism according to an embodiment of the present utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the slider core-pulling mechanism according to an embodiment of the present utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the bottom shell of an embodiment of the present utility model;

[0022] Figure 7 This is a three-dimensional schematic diagram of the bottom shell from another angle, representing an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Upper mold base; 20. Upper template

[0025] 30. Lower template 40. Lower mold base

[0026] 50. Core convex part 60. Lower cavity

[0027] 70. Slider core-pulling mechanism; 71. Slider

[0028] 711. Molded tooth pattern; 712. Groove.

[0029] 713. Inclined linkage surface; 72. Linkage block

[0030] 721. Linkage Unit; 722. Angled Action Surface

[0031] 723, Main body 73, Angled contact block

[0032] 731, Angled contact surface; 80, Support plate assembly

[0033] 81. Vertical plate 82. Shock-absorbing spring

[0034] 83. Upper horizontal panel 84. Lower horizontal panel

[0035] 90. Buffer space 101. Bottom shell. Detailed Implementation

[0036] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0038] A molding die for an accordion-shaped bottom shell includes an upper mold assembly and a lower mold assembly connected to each other; the upper mold assembly includes an upper mold base 10, an upper template 20, and an upper mold core arranged sequentially from top to bottom, the upper mold core being embedded in the lower surface of the upper template 20; the lower mold assembly includes a lower mold core, a lower template 30, and a lower mold base 40 arranged sequentially from top to bottom, the lower mold core being embedded in the upper surface of the lower template 30.

[0039] A support plate assembly 80 is provided between the lower template 30 and the lower mold base 40. The support plate assembly 80 includes two vertical plates 81, two horizontal plates, a shock-absorbing spring 82, and a connecting column. The two vertical plates 81 are symmetrically spaced at their front and rear. The two horizontal plates are stacked vertically and positioned between the front and rear distances of the two vertical plates 81. The two horizontal plates are locked together by positioning screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower template 30, and reaches the upper surface of the lower template 30. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring 82 is sleeved on the connecting column. One end of the shock-absorbing spring 82 abuts against the lower template 30, and the other end abuts against the upper horizontal plate. Here, the design of the support plate assembly 80 with the shock-absorbing spring 82 improves its shock absorption capacity, strengthens the overall structural strength, enables it to withstand greater impact forces, and further extends its service life.

[0040] The lower template 30, lower mold base 40, and two vertical plates 81 form a buffer space 90, and the two horizontal plates are located within the buffer space 90. The two horizontal plates are an upper horizontal plate 83 and a lower horizontal plate 84, respectively. One end of the connecting column passes through the upper horizontal plate 83, extends into the lower template 30, and extends to the upper surface of the lower template 30. The other end is flush with the lower surface of the upper horizontal plate 83. One end of the shock-absorbing spring 82 abuts against the lower template 30, and the other end abuts against the upper horizontal plate 83.

[0041] The lower transverse plate 84 and the lower mold base 40 are spaced apart, and a buffer pad is provided between the lower transverse plate 84 and the lower mold base 40. This buffer pad further enhances the cushioning capacity. The buffer pad is secured to the lower surface of the lower transverse plate 84 with locking screws. The buffer pad protrudes from the lower surface of the lower transverse plate 84, and its lower surface is constrained by the upper surface of the lower mold base 40. Thus, the buffer pad can be securely connected to the lower transverse plate 84 using locking screws.

[0042] The lower surface of the upper mold core is recessed with an upper cavity, and the upper surface of the lower mold core is protruded with a core protrusion 50. A lower cavity 60 is formed around the core protrusion 50. The upper cavity and the lower cavity 60 are adapted to form a cavity for molding a bottom shell 101 with accordion-shaped sides. Four slider core-pulling mechanisms 70 are provided between the upper mold plate 20 and the lower mold plate 30. The four slider core-pulling mechanisms 70 surround the cavity. Each slider core-pulling mechanism 70 includes a slider 71 and a linkage block 72. The slider 71 can move towards or away from the cavity. The end face of the slider 71 facing the cavity is provided with accordion-shaped molding teeth 711. The upper end of the linkage block 72 passes through the upper mold plate 20 and is connected to the upper mold base 10. The lower end of the linkage block 72 has a linkage part 721 that extends obliquely outward from top to bottom. The linkage part 721 passes through the slider 71.

[0043] The two pairs of side surfaces of the linkage part 721 are oblique working surfaces 722 extending obliquely outward from top to bottom. The slider 71 has a through groove 712 through which the linkage part 721 passes. The two opposite inner side surfaces of the through groove 712 are oblique linkage surfaces 713 extending obliquely outward from top to bottom. The oblique linkage surfaces 713 are in contact with the corresponding oblique working surfaces 722.

[0044] An inclined contact block 73 is provided on the inclined action surface 722 located on the inner side in the horizontal direction on the linkage part 721. The inclined contact block 73 is detachably connected to the inclined action surface 722 by a first locking screw, so that it can be disassembled and replaced by the first locking screw after excessive wear. The inclined contact block 73 has an inclined contact surface 731 extending obliquely outward from top to bottom. The inclined contact surface 731 protrudes outside the inclined action surface 722 and contacts the corresponding inclined linkage surface 713.

[0045] The linkage block 72 includes a main body 723, the linkage part 721 is integrally connected to the lower end of the main body 723, and the upper end of the main body 723 passes through the upper template 20 and is connected to the upper mold base 10 by the second locking screw.

[0046] In summary, the key design feature of this utility model lies in its ability to adapt the upper and lower cavities to form a cavity for molding a bottom shell with accordion-shaped sides. Four slider core-pulling mechanisms are installed between the upper and lower mold plates, surrounding the cavity. Each slider core-pulling mechanism includes a slider and a linkage block. Accordion-shaped molding teeth are provided on the end face of the slider facing the cavity. The upper end of the linkage block passes through the upper mold plate and connects to the upper mold base. The lower end of the linkage block has a linkage portion extending obliquely outward from top to bottom, allowing the linkage portion to pass through the slider... This design allows the slider to create an accordion-shaped bottom shell on all four sides through its accordion-shaped forming teeth, thus meeting the user's personalized needs. Furthermore, the upward movement of the upper mold base drives the linkage block upward, which in turn moves the slider via a linkage mechanism. Since the linkage mechanism extends outward at an angle, its upward movement causes the slider to move outward for core pulling. This achieves a slider-driven core pulling structure design, eliminating the need for a cylinder, reducing space occupation, minimizing subsequent maintenance, and ensuring the mold's lifespan.

[0047] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A molding die for an accordion-shaped bottom shell, comprising an upper mold assembly and a lower mold assembly connected to each other; the upper mold assembly includes an upper mold base, an upper template, and an upper mold core arranged sequentially from top to bottom, the upper mold core being embedded in the lower surface of the upper template; the lower mold assembly includes a lower mold core, a lower template, and a lower mold base arranged sequentially from top to bottom, the lower mold core being embedded in the upper surface of the lower template; characterized in that: The lower surface of the upper mold core is recessed with an upper cavity, and the upper surface of the lower mold core is convex with a core protrusion. A lower cavity is formed around the core protrusion. The upper cavity and the lower cavity are adapted to form a cavity for molding a bottom shell with accordion-shaped sides. Four slider core-pulling mechanisms are provided between the upper and lower mold plates. The four slider core-pulling mechanisms surround the cavity. Each slider core-pulling mechanism includes a slider and a linkage block. The slider can move towards or away from the cavity. The end face of the slider facing the cavity is provided with accordion-shaped molding teeth. The upper end of the linkage block passes through the upper mold plate and is connected to the upper mold base. The lower end of the linkage block has a linkage part that extends obliquely outward from top to bottom. The linkage part passes through the slider.

2. The molding die for an accordion-shaped bottom shell according to claim 1, characterized in that: The two pairs of side surfaces of the linkage part are oblique working surfaces extending obliquely outward from top to bottom. The slider has a through groove for the linkage part to pass through. The two opposite inner side surfaces of the through groove are oblique linkage surfaces extending obliquely outward from top to bottom. The oblique linkage surfaces are in contact with the corresponding oblique working surfaces.

3. A molding die for an accordion-shaped bottom shell according to claim 2, characterized in that: An inclined contact block is provided on the inclined working surface located on the inner side in the horizontal direction on the linkage part. The inclined contact block is detachably connected to the inclined working surface by a first locking screw. The inclined contact block has an inclined contact surface extending obliquely outward from top to bottom. The inclined contact surface protrudes outside the inclined working surface and contacts the corresponding inclined linkage surface.

4. A molding die for an accordion-shaped bottom shell according to claim 1, characterized in that: The linkage block includes a main body, which is integrally connected to the lower end of the main body. The upper end of the main body passes through the upper template and is connected to the upper mold base by a second locking screw.

5. A molding die for an accordion-shaped bottom shell according to claim 1, characterized in that: A support plate assembly is provided between the lower template and the lower mold base. The support plate assembly includes two vertical plates, two horizontal plates, a shock-absorbing spring, and a connecting column. The two vertical plates are symmetrically spaced front to back. The two horizontal plates are stacked vertically and located between the front to back spacing of the two vertical plates. The two horizontal plates are locked together by positioning screws. One end of the connecting column passes through the upper horizontal plate, extends into the lower template, and reaches the upper surface of the lower template. The other end is flush with the lower surface of the upper horizontal plate. The shock-absorbing spring is sleeved on the connecting column. One end of the shock-absorbing spring abuts against the lower template and the other end abuts against the upper horizontal plate.

6. A molding die for an accordion-shaped bottom shell according to claim 5, characterized in that: The lower template, lower mold base, and two vertical plates form a buffer space, and the two horizontal plates are located within the buffer space. The two horizontal plates are the upper horizontal plate and the lower horizontal plate, respectively. One end of the connecting column passes through the top of the upper horizontal plate, extends into the lower template, and extends to the upper surface of the lower template. The other end is flush with the lower surface of the upper horizontal plate. One end of the shock-absorbing spring abuts against the bottom of the lower template, and the other end abuts against the top of the upper horizontal plate.

7. A molding die for an accordion-shaped bottom shell according to claim 6, characterized in that: The lower horizontal plate is spaced apart from the lower mold base, and a buffer pad is provided between the lower horizontal plate and the lower mold base.

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