Die for forming product with inverted buckle

Abstract

The utility model relates to the technical field of dies, and provides a die for forming a product with an inverted buckle, the die is used for forming a shell with a first buckle, the die comprises an upper die assembly and a lower die assembly which are matched with each other, and the upper die assembly and the lower die assembly are mutually closed to form a cavity for forming the shell; the upper die assembly comprises an upper die plate and an upper die core arranged on the upper die plate. The lower die assembly comprises a lower die plate, two supporting plates arranged on the lower die plate and lower die cores arranged on the two supporting plates. An ejection mechanism is further arranged on the lower die assembly, and a first inverted buckle forming device is arranged on the ejection mechanism. The first inverted buckle forming device comprises a base and a first sliding rod, and a protruding part is arranged above the first sliding rod. According to the mold, the first inverted buckle forming device is arranged, and the first sliding rod can obliquely move upwards relative to the lower mold core under the action of the ejection mechanism, so that the first sliding rod can be separated from the inner side of the first buckle, and a shell can be conveniently taken out.

Description

Technical Field

[0001] This utility model relates to the technical field of shell production, and in particular to a mold for molding products with undercuts. Background Technology

[0002] The housing can be installed onto the specified product as needed. The specific installation can be done by bolts or clips. Bolts require time for assembly, while clips can be used for quick installation. However, since most clips are inverted structures, there are problems such as inability to demold or difficulty in demolding when using molds for production. Although it is possible to directly mold clips onto the housing, the overall structure is relatively complex. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model proposes a mold for molding products with undercuts, the specific solution of which is as follows:

[0004] A mold for molding a product with an undercut, for molding a housing with a first snap, the mold includes an upper mold assembly and a lower mold assembly that cooperate with each other to form a cavity for molding the housing;

[0005] The upper mold assembly includes an upper template and an upper mold core disposed on the upper template;

[0006] The lower mold assembly includes a lower template, two support plates disposed on the lower template, and a lower mold core disposed on the two support plates;

[0007] The lower mold assembly is also provided with an ejection mechanism, and the ejection mechanism is provided with a first undercut forming device;

[0008] The first undercut forming device includes a base disposed on the ejection mechanism, a first slide rod embedded in the lower mold core and slidably connected to the lower mold core, a protrusion provided on the upper part of the first slide rod for forming a first buckle (in conjunction with the lower mold core), and the lower part of the first slide rod being slidably connected to the base.

[0009] Furthermore, the first slide bar is inclined on the lower mold core, and the protrusion is located inside the first slide bar. The ejection mechanism drives the first slide bar to move inclined upward inside the lower mold core.

[0010] Furthermore, the base is provided with a first sliding groove for sliding one end of the first sliding rod, and the bottom of the first sliding rod is slidably connected to the base through a sliding mechanism.

[0011] Furthermore, the sliding mechanism includes a first connecting shaft that passes through the first slide rod and is perpendicular to the first slide rod, and two first bearings sleeved at both ends of the first connecting shaft. The two shaft sides are located on both sides of the first slide rod and slide within the first slide groove.

[0012] Furthermore, the upper mold plate is provided with an injection port, the upper mold core is provided with a guide sleeve, and the lower mold core is provided with a guide post, the guide post being slidably connected to the guide sleeve.

[0013] Furthermore, the housing also has a second snap fastener, and the mold is also equipped with a second inverted forming device for forming the second snap fastener.

[0014] Furthermore, the second undercut forming device includes several sets of outer shell assemblies embedded in the lower mold core, a forming ejector pin with its bottom set on the lower template and its top located inside the outer shell assembly, and a forming bushing with its bottom set on the ejection mechanism and its top located between the outer shell assembly and the forming ejector pin. The inner sidewall of the outer shell assembly, the outer sidewall of the forming ejector pin, and the top surface of the forming bushing form a cavity for forming the second buckle.

[0015] Furthermore, the housing assembly includes a molded housing with a consistent structure.

[0016] Furthermore, the inner side of the molded outer shell is provided with a molding groove that adapts to the top of the second buckle.

[0017] Furthermore, several sets of outer shell components are mounted on the lower mold core via a fixing plate. The outer walls of the outer shell components are inclined, and the outer diameter gradually increases from top to bottom.

[0018] Furthermore, a reinforcing column is provided between the second inverted forming device and the lower template. The reinforcing column is bolted to the lower template at the bottom and abuts against the bottom of the fixing plate at the top.

[0019] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0020] The mold of this utility model is equipped with a first undercut forming device, which includes a base and a first slide rod. The first slide rod, in conjunction with the lower mold core, can directly form the first snap-fit. Specifically, since the first slide rod is inclined and can move upward relative to the lower mold core under the action of the ejection mechanism, it can disengage from the inner side of the first snap-fit ​​to facilitate the removal of the housing. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0022] in:

[0023] Figure 1 This is an axonometric view of a mold used to form products with undercuts;

[0024] Figure 2 An exploded view of a mold used to form products with undercuts;

[0025] Figure 3 This is an isometric view of the upper mold assembly in a mold for forming products with undercuts;

[0026] Figure 4 This is a top view of a mold used to form products with undercuts;

[0027] Figure 5 A type of mold for forming products with undercuts Figure 4 AA section view;

[0028] Figure 6 A type of mold for forming products with undercuts Figure 4 EE sectional view;

[0029] Figure 7 A type of mold for forming products with undercuts Figure 4 FF sectional view;

[0030] Figure 8 This is an exploded view of the lower mold assembly in a mold for forming products with undercuts;

[0031] Figure 9 An exploded view of the first undercut forming device in a mold for forming products with undercuts;

[0032] Figure 10 An exploded view of the second undercut forming device in a mold for forming products with undercuts;

[0033] Figure 11 This is an axonometric view of the housing;

[0034] Figures 1 to 11 The identifiers in the text are:

[0035] 001. Upper mold assembly; 002. Lower mold assembly; 003. Housing; 031. First snap-fit; 032. Second snap-fit; 10. Upper template; 11. Injection port; 20. Upper mold core; 21. Guide sleeve; 30. Lower template; 40. Support plate; 50. Lower mold core; 51. Guide post; 60. Ejection mechanism; 61. Base plate assembly; 70. First undercut forming device; 71. Base; 711. First slide groove; 72. First slide rod; 721. Protrusion; 73. Sliding mechanism; 731. First connecting shaft; 732. First bearing; 80. Second undercut forming device; 81. Housing assembly; 811. Molded housing; 8111. Molding groove; 82. Molding ejector rod; 83. Molding bushing; 84. Fixing plate. Detailed Implementation

[0036] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0037] Please see Figures 1 to 11 This is a mold provided in this embodiment for molding products with undercuts. It is used to mold a housing 003 with a first buckle 031. Specifically, the housing 003 has a first step located at the edge and a first buckle 031 disposed inside the first step. The first undercut molding device 70 cooperates with the lower mold core 50 to mold the first buckle 031. The mold includes an upper mold assembly 001 and a lower mold assembly 002 that cooperate with each other. The upper mold assembly 001 and the lower mold assembly 002 are closed to form a cavity for molding a shell 003. The upper mold assembly 001 includes an upper template 10 and an upper mold core 20 disposed on the upper template 10. The lower mold assembly 002 includes a lower template 30, two support plates 40 disposed on the lower template 30, and a lower mold core 50 disposed on the two support plates 40. The lower mold assembly 002 is also provided with an ejection mechanism 60, and the ejection mechanism 60 is provided with a first undercut forming device 70. The first undercut forming device 70 includes a base 71 disposed on the ejection mechanism 60, a first slide rod 72 embedded in the lower mold core 50 and slidably connected to the lower mold core 50, a protrusion 721 above the first slide rod 72 for forming a first buckle 031 (in cooperation with the lower mold core 50), and a slide rod 72 slidably connected to the base 71 below.

[0038] The first slide bar 72 is inclinedly disposed on the lower mold core 50, and the protrusion 721 is located inside the first slide bar 72. The ejection mechanism 60 drives the first slide bar 72 to move inclinedly upward within the lower mold core 50. Since the first slide bar 72 is inclined and can move inclined upward relative to the lower mold core 50, it can disengage from the inside of the first buckle 031 to facilitate the removal of the housing 003. Multiple first buckles 031 are provided on the housing 003, so multiple first undercut forming devices 70 can be provided accordingly. The specific number and placement are selected according to actual needs.

[0039] A first groove 711 is provided on the base 71 for sliding one end of the first slide rod 72. The bottom of the first slide rod 72 is slidably connected to the base 71 via a sliding mechanism 73. Specifically, one end of the first slide rod 72 passes through the end face of the lower mold core 50 and then connects to the base 71 located on the ejection mechanism 60. During connection, the sliding mechanism 73 is used to facilitate the sliding connection between the lower end of the first slide rod 72 and the base 71, making the sliding process smoother. The sliding mechanism 73 includes a first connecting shaft 731 that passes through and is perpendicular to the first slide rod 72, and two first bearings 732 that are sleeved at both ends of the first connecting shaft 731. The two shaft sides are located on both sides of the first slide rod 72 and slide within the first groove 711.

[0040] The upper mold plate 10 is also provided with a glue injection port 11, the upper mold core 20 is provided with a guide sleeve 21, and the lower mold core 50 is also provided with a guide post 51. The guide post 51 is slidably connected to the guide sleeve 21. There are four guide posts 51, and four guide sleeves 21 are provided accordingly. Through the cooperation of the guide posts 51 and the guide sleeves 21, the upper mold assembly 001 and the lower mold assembly 002 can be accurately molded together.

[0041] In another embodiment of this utility model, the housing 003 also has a second snap fastener 032, therefore the mold is further provided with a second undercut forming device 80 for forming the second snap fastener 032. The second undercut forming device 80 includes several sets of housing assemblies 81 embedded in the lower mold core 50, a forming ejector rod 82 with its bottom disposed on the lower template 30 and its upper part located inside the housing assembly 81, and a forming bushing 83 with its bottom disposed on the ejection mechanism 60 and its upper part located between the housing assembly 81 and the forming ejector rod 82. The inner sidewall of the housing assembly 81, the outer sidewall of the forming ejector rod 82, and the top surface of the forming bushing 83 form a cavity for forming the second snap fastener 032. The number of housing assemblies 81 is set according to actual needs.

[0042] The outer shell assembly 81 includes a molded outer shell 811 with a consistent structure. The inner side of the molded outer shell 811 is provided with a molding groove 8111 that adapts to the top of the second buckle 032. Several sets of outer shell assemblies 81 are set on the lower mold core 50 by fixing plates 84. The outer walls of the outer shell assemblies 81 are inclined and the outer diameter gradually increases from top to bottom. The outer shell assemblies 81 can be inserted from the bottom of the lower mold core 50. Then, the fixing plates 84 are locked to the lower mold core 50 by several bolts, thereby confining the outer shell assemblies 81 within the lower mold core 50.

[0043] The forming ejector pin 82 is fixedly mounted on the lower template 30, and the forming bushing 83 is fixedly mounted on the base plate assembly 61 of the ejection mechanism 60. When the ejection mechanism 60 ejects the housing 003, it can drive the forming bushing 83 to move upward. Since the housing assembly 81 adopts a split structure, the second buckle 032 can be ejected from the housing assembly 81 by the upward movement of the forming bushing 83. The split housing assembly 81 has a gap between the two forming housings 811, and there is also a gap between the forming housings 811 and the lower mold core 50. Therefore, when the second buckle 032 is disengaged from the housing assembly 81, the two forming housings 811 can be slightly pushed apart, which facilitates better demolding of the second buckle 032.

[0044] A reinforcing column is also provided between the second inverted forming device and the lower template 30. The lower part of the reinforcing column is locked to the lower template 30 by bolts, and the upper part abuts against the lower part of the fixing plate 84. When the reinforcing column is installed, it passes through the bottom plate assembly 61 of the ejection mechanism 60. Meanwhile, the ejection mechanism 60, water flow channel, etc. in this utility model all adopt existing technology and will not be described in detail.

[0045] In summary, the mold of this utility model is equipped with a first undercut forming device, which includes a base and a first slide rod. The first slide rod, in conjunction with the lower mold core, can directly form the first snap-fit. Specifically, since the first slide rod is inclined and can move upward relative to the lower mold core under the action of the ejection mechanism, it can disengage from the inner side of the first snap-fit ​​to facilitate the removal of the housing.

[0046] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

[0047] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising” or “including” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A mold for molding products with inverted buckles, used for molding a housing (003) having a first snap (031), characterized in that, The mold includes an upper mold assembly (001) and a lower mold assembly (002) that cooperate with each other, the upper mold assembly (001) and the lower mold assembly (002) closing together to form a cavity for molding a housing (003); The upper mold assembly (001) includes an upper template (10) and an upper mold core (20) disposed on the upper template (10). The lower mold assembly (002) includes a lower template (30), two support plates (40) disposed on the lower template (30), and a lower mold core (50) disposed on the two support plates (40). The lower mold assembly (002) is also provided with an ejector mechanism (60), and the ejector mechanism (60) is provided with a first undercut forming device (70). The first undercut forming device (70) includes a base (71) disposed on the ejection mechanism (60), a first slide rod (72) embedded in the lower mold core (50) and slidably connected to the lower mold core (50), a protrusion (721) is provided above the first slide rod (72) for forming the first buckle (031), and the first slide rod (72) is slidably connected to the base (71) below.

2. The mold for molding products with undercuts according to claim 1, characterized in that, The first slide bar (72) is inclined on the lower mold core (50), and the protrusion (721) is located inside the first slide bar (72). The ejection mechanism (60) drives the first slide bar (72) to move upward inclined inside the lower mold core (50).

3. The mold for molding products with undercuts according to claim 1, characterized in that, The base (71) is provided with a first slide groove (711) for sliding one end of the first slide rod (72), and the bottom of the first slide rod (72) is slidably connected to the base (71) through a sliding mechanism (73).

4. A mold for molding products with undercuts according to claim 3, characterized in that, The sliding mechanism (73) includes a first connecting shaft (731) that passes through the first slide rod (72) and is perpendicular to the first slide rod (72), and two first bearings (732) that are set at both ends of the first connecting shaft (731). The two shaft sides are located on both sides of the first slide rod (72) and slide in the first slide groove (711).

5. A mold for molding products with undercuts according to claim 1, characterized in that, The upper mold plate (10) is also provided with an injection port (11), the upper mold core (20) is provided with a guide sleeve (21), and the lower mold core (50) is also provided with a guide post (51). The guide post (51) and the guide sleeve (21) are slidably connected.

6. A mold for molding products with undercuts according to claim 1, characterized in that, The housing (003) also has a second buckle (032), and the mold is also provided with a second buckle forming device (80) for forming the second buckle (032).

7. A mold for molding products with undercuts according to claim 6, characterized in that, The second undercut forming device (80) includes several sets of outer shell assemblies (81) embedded in the lower mold core (50), forming push rods (82) with their bottoms set on the lower template (30) and their tops located inside the outer shell assembly (81), and forming bushings (83) with their bottoms set on the ejection mechanism (60) and their tops located between the outer shell assembly (81) and the forming push rods (82). The inner sidewall of the outer shell assembly (81), the outer sidewall of the forming push rods (82), and the top surface of the forming bushings (83) form a cavity for forming the second snap fastener (032).

8. A mold for molding products with undercuts according to claim 7, characterized in that, The housing assembly (81) includes a molded housing (811) with a consistent structure.

9. A mold for molding products with undercuts according to claim 7, characterized in that, Several sets of housing components (81) are mounted on the lower mold core (50) via a fixing plate (84). The outer side wall of the housing component (81) is inclined and the outer diameter gradually increases from top to bottom.

10. A mold for molding products with undercuts according to claim 9, characterized in that, A reinforcing column is also provided between the second inverted forming device (80) and the lower template (30). The reinforcing column is bolted to the lower template (30) at the bottom and abuts against the bottom of the fixing plate (84) at the top.

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