Injection mold for interphone shell

Abstract

The utility model relates to the technical field of injection molding production of plastic shells, in particular to an injection mold for an interphone shell, which comprises a mold frame assembly and a molding assembly, the mold frame assembly is provided with a front mold frame and a rear mold frame, and the molding assembly forms a molding space; the forming assembly is provided with a mold core assembly and a slide assembly, the mold core assembly is provided with a front mold core and a rear mold core which are respectively combined into the top and the bottom of a forming space, and the slide assembly is provided with a first slide, a second slide, a third slide and a fourth slide which are respectively combined into four side walls of the forming space; the device is used for forming an internal step position of a shell product. In conclusion, the internal step position of the antenna part of the interphone shell is smoothly injection-molded by using the pitched roof assembly, so that the quality of the interphone shell is improved. And two shell products can be injection-molded in the same injection mold, so that the production efficiency is improved, the volume of the injection mold is reduced, and the manufacturing cost of the injection mold is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding production of plastic shells, in particular to an injection mold for an intercom shell. Background Art

[0002] The shell injection mold is a tool for producing plastic shells, and is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and molten plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a formed product is obtained. Shell injection molds are divided into two types according to the molding characteristics: thermosetting plastic molds and thermoplastic plastic molds. According to the molding process, they are divided into transfer molds, blow molding molds, casting molds, thermoforming molds, hot pressing molds, injection molds, etc. Among them, hot pressing molds can be divided into three types according to the overflow method: overflow type, semi-overflow type, and non-overflow type. Injection molds can be divided into two types according to the pouring system: cold runner molds and hot runner molds. According to the loading and unloading method, they can be divided into two types: mobile and fixed.

[0003] Another challenge in injection molding the intercom housing is that it typically features a relatively thick antenna. To securely mount the antenna, a step is created at the opening. While the outer step can typically be formed directly using a slider, the inner step requires a sloping lift assembly. Therefore, designing the corresponding sloping lift assembly is a technical challenge that needs to be addressed.

[0004] In addition, in order to improve production efficiency, how to injection mold two shell products in the same injection mold is also a technical problem that needs to be solved. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] The utility model provides an injection mold for a walkie-talkie shell, comprising a mold frame assembly and a molding assembly, wherein the mold frame assembly is provided with a front mold frame and a rear mold frame, and the molding assembly is installed between the front mold frame and the rear mold frame to form a molding space for an injection-molded shell product; the molding assembly is provided with a mold core assembly and a slide assembly, wherein the mold core assembly is provided with a front mold core and a rear mold core, which are respectively combined to form the top and bottom of the molding space; the slide assembly is provided with a first slide position, a second slide position, a third slide position and a fourth slide position, which are respectively combined to form the four side walls of the molding space; and further comprising a slanted top assembly for molding the internal step position of the shell product.

[0007] As a further solution of the present invention: the inclined ejector assembly is provided with a first inclined ejector rod, a first guide block and a first inclined ejector seat, one end of the first inclined ejector rod is provided with a step protrusion corresponding to the internal step position of the shell product, and the other end thereof forms a transmission connection with the first inclined ejector seat, so that the first inclined ejector seat can drive the first inclined ejector rod to move in the mold opening direction or the mold closing direction; the first guide block is fixed to the rear mold core and is sleeved on the first inclined ejector rod, and can drive the first inclined ejector rod laterally perpendicular to the mold opening direction, so that the step protrusion of the first inclined ejector rod is disengaged from the internal step position, thereby completing the demolding operation.

[0008] As a further solution of the present invention: the first row position is provided with a first shovel base, a first inclined guide column, a first pressure strip and a first slider, the first pressure strip is fixedly connected to the rear mold frame and cooperates with the rear mold frame to form a first slide groove for the first slider to slide; the first shovel base is fixedly connected to the front mold frame, the first inclined guide column is fixedly connected to the first shovel base, and cooperates with the inclined guide hole of the first slider, thereby driving the first slider to slide a certain distance along the first slide groove.

[0009] As a further solution of the present invention: the first row position is also provided with a side wall assembly, the side wall assembly is provided with a side wall protrusion, a side wall inclined push rod and a side wall inclined push seat, the side wall protrusion is used to form a side wall countersunk hole extending along the first side wall direction on the shell product, the interior of the first slider is provided with a side wall guide hole corresponding to the position of the side wall inclined push rod, the side wall inclined push rod is passed through the side wall guide hole, and can be guided by the side wall guide hole, thereby moving a certain distance along the first side wall direction.

[0010] As a further solution of the present invention: the side wall assembly is also provided with an extension rod, one end of the extension rod is fixedly connected to the side wall inclined top seat, and the other end thereof forms a first inclined surface, and the first shovel base is provided with a mold closing drive block at a position corresponding to the first inclined surface, and the mold closing drive block is fixedly connected to the first shovel base, and one end thereof is provided with a second inclined surface, and the mold closing drive block cooperates with the extension rod to drive the side wall inclined top rod to move a certain distance toward the direction close to the molding space.

[0011] As a further solution of the present invention: the second row position is provided with a second shovel base, a second inclined guide column, a second pressure strip and a second slider. The second pressure strip is fixed to the rear mold frame and cooperates with the rear mold frame to form a second slide groove for the second slider to slide; the second shovel base is fixed to the front mold frame, the second inclined guide column is fixed to the second shovel base, and cooperates with the inclined guide hole of the second slider, thereby driving the second slider to slide a certain distance along the second slide groove.

[0012] As a further solution of the present invention: the fourth row position is provided with a fourth shovel base, a fourth inclined guide column, a fourth pressure strip and a fourth slider. The fourth pressure strip is fixedly connected to the rear mold frame and cooperates with the rear mold frame to form a fourth slide groove for the fourth slider to slide; the fourth shovel base is fixedly connected to the front mold frame, the fourth inclined guide column is fixedly connected to the fourth shovel base, and cooperates with the inclined guide hole of the fourth slider, thereby driving the fourth slider to slide a certain distance along the fourth slide groove.

[0013] As a further solution of the present invention: the third row position is provided with a third shovel base, a third guide block, a third pressure strip and a third sliding block, the third pressure strip is fixedly connected to the rear mold frame, and cooperates with the rear mold frame to form a third slide groove for the third sliding block to slide; the third shovel base is fixedly connected to the front mold frame, the third guide block is fixedly connected to the third shovel base, and the third sliding block is provided with an oblique guide groove, and the oblique guide groove is sleeved on the third guide block, so that the third guide block and the oblique guide groove cooperate with each other, thereby driving the third sliding block to move a certain distance along the third slide groove.

[0014] As a further solution of the present invention: the molding assembly is provided with a first molding part and a second molding part, the first molding part and the second molding part are respectively installed between the front mold frame and the rear mold frame, and form two molding spaces for simultaneously injecting two shell products; the third shovel base of the third row of the first molding part and the third shovel base of the third row of the second molding part are the same component, and the third guide block of the third row of the first molding part and the third guide block of the third row of the second molding part are respectively fixed to both sides of the third shovel base.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By installing a slider assembly, the molding space is surrounded by four sides, forming the corresponding components of the four side walls of the injection molded housing product. The slider assembly and the mold core assembly cooperate to form the corresponding molding space. Furthermore, a lifter assembly is provided to penetrate the mold core assembly and perform the corresponding injection molding operation on the internal stepped areas of the housing product. This allows the intercom housing to be injection molded according to preset requirements, improving production efficiency and quality.

[0017] 2. By setting up a first molding section and a second molding section inside the injection mold, two housing products can be injection molded simultaneously, further improving production efficiency. Furthermore, by setting up a third shovel base to be used by both molding sections, the volume of the injection mold can be reduced, thereby lowering the production cost of the injection mold.

[0018] Therefore, through the above-mentioned improvements, the present invention can provide an injection mold for a walkie-talkie housing, which can use a corresponding inclined top assembly to smoothly complete the internal step of the antenna area of ​​the walkie-talkie housing, thereby improving the quality of the walkie-talkie housing. It can also simultaneously mold two housing products in the same injection mold, improving production efficiency, reducing the volume of the injection mold, and lowering the production cost of the injection mold.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a structural diagram of the mold frame assembly of the utility model;

[0022] Figure 2 It is a structural diagram of the forming assembly and the third shovel base of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the inclined top assembly of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the first row position of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the first row of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the demoulding square bar and demoulding step of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the extension rod and the side wall inclined top rod of the utility model;

[0028] Figure 8 This is a schematic structural diagram of the second row position of the utility model;

[0029] Figure 9 This is a schematic structural diagram of the third row position of the utility model;

[0030] Figure 10 This is a schematic cross-sectional structural diagram of the third row position of the present utility model;

[0031] Figure 11 It is a structural diagram of the fourth row position of the utility model.

[0032] The reference numerals and names in the figures are as follows:

[0033] 10 mold frame assembly; 11 front mold frame; 12 rear mold frame; 20 molding assembly; 21 first molding part; 22 second molding part; 23 mold core assembly; 24 front mold core; 25 rear mold core; 30 first row; 31 first shovel base; 32 mold closing drive block; 33 second inclined surface; 34 first inclined guide column; 35 first pressure strip; 36 first slide; 37 side wall guide hole; 38 demoulding square bar; 40 side wall assembly; 41 side wall protrusion; 42 side wall inclined top seat; 43 side wall inclined top rod; 44 demoulding step; 45 extension rod; 46 first inclined Surface; 50 second row position; 51 second shovel base; 52 second inclined guide column; 53 second pressure strip; 54 second slider; 60 third row position; 61 third shovel base; 62 third guide block; 63 third pressure strip; 64 third slider; 65 inclined guide groove; 70 fourth row position; 71 fourth shovel base; 72 fourth inclined guide column; 73 fourth pressure strip; 74 fourth slider; 80 inclined ejector assembly; 81 first inclined ejector rod; 82 step protrusion; 83 first guide block; 84 first inclined ejector seat; 90 shell product; 91 internal step position; 92 side wall countersunk hole. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1 to 11 In an embodiment of the present invention, an injection mold for a walkie-talkie shell includes a mold frame assembly 10 and a molding assembly 20. The mold frame assembly 10 is provided with a front mold frame 11 and a rear mold frame 12. The molding assembly 20 is installed between the front mold frame 11 and the rear mold frame 12 to form a molding space for an injection-molded shell product 90; the molding assembly 20 is provided with a mold core assembly 23 and a slide assembly. The mold core assembly 23 is provided with a front mold core 24 and a rear mold core 25, which are respectively combined into the top and bottom of the molding space, the slide assembly is provided with a first slide 30, a second slide 50, a third slide 60 and a fourth slide 70, which are respectively combined into the four side walls of the molding space, and also includes a slanted top assembly 80 for molding the internal step position 91 of the shell product 90.

[0036] Specifically, in order to produce the intercom housing through injection molding, the injection mold needs to be improved accordingly according to the shape and structure of the housing product 90, so as to produce the internal specific molding component 20 according to the characteristics of the housing product 90. Figure 3 The shell product 90 has a larger opening at the bottom, so that the rear mold core 25 can penetrate into the interior of the shell product 90 through the larger opening, and the front mold core 24 can be set on the top of the shell product 90, so that the front mold core 24 and the rear mold core 25 cooperate with each other to form the mold core assembly 23 of the injection molded shell product 90.

[0037] Since the four side walls of the housing product 90 have the same thickness and are provided with corresponding mounting holes, corresponding slider assemblies can be provided for injection molding the four side walls, and the corresponding sliders are aligned with the side walls. For example, the first slider 30 corresponds to molding the first side wall of the housing product 90, the second slider 50 corresponds to molding the second side wall of the housing product 90, the third slider 60 corresponds to molding the third side wall of the housing product 90, and the fourth slider 70 corresponds to molding the fourth side wall of the housing product 90. Different slider structures are provided according to the different mounting holes on the side walls, so that the side walls can be correctly injection molded.

[0038] Secondly, the core mold assembly 23 and the slide assembly are respectively installed inside the mold frame assembly 10, forming a molding space for the injection-molded shell product 90. Correspondingly, the mold frame assembly 10 can also drive the core mold assembly 23 and the slide assembly to perform corresponding mold opening or closing operations, thereby completing the predetermined injection molding operation.

[0039] like Figure 3 As shown, preferably, the inclined ejector assembly 80 is provided with a first inclined ejector rod 81, a first guide block 83 and a first inclined ejector seat 84, one end of the first inclined ejector rod 81 is provided with a step protrusion 82 corresponding to the internal step position 91 of the shell product 90, and the other end thereof forms a transmission connection with the first inclined ejector seat 84, so that the first inclined ejector seat 84 can drive the first inclined ejector rod 81 to move in the mold opening direction or the mold closing direction; the first guide block 83 is fixed to the rear mold core 25, and is sleeved on the first inclined ejector rod 81, and can drive the first inclined ejector rod 81 laterally perpendicular to the mold opening direction, so that the step protrusion 82 of the first inclined ejector rod 81 is disengaged from the internal step position 91, thereby completing the demolding operation.

[0040] Specifically, when the mold is closed, the first guide block 83 can also drive the first inclined push rod 81 to move horizontally perpendicular to the mold closing direction, so that the step protrusion 82 of the first inclined push rod 81 can penetrate into the molding space and be combined into a mold for molding the internal step position 91.

[0041] like Figure 4As shown, preferably, the first row position 30 is provided with a first shovel base 31, a first inclined guide column 34, a first pressure strip 35 and a first slider 36, the first pressure strip 35 is fixedly connected to the rear mold frame 12, and cooperates with the rear mold frame 12 to form a first slide groove for the first slider 36 to slide; the first shovel base 31 is fixedly connected to the front mold frame 11, the first inclined guide column 34 is fixedly connected to the first shovel base 31, and cooperates with the inclined guide hole of the first slider 36, thereby driving the first slider 36 to slide a certain distance along the first slide groove.

[0042] Specifically, when closing the mold, the first inclined guide column 34 can drive the first slider 36 to move in the direction close to the molding space, thereby completing the mold closing operation, and the combination is combined into a molding space to perform a molding operation on the first side wall of the shell product 90; and when opening the mold, the first inclined guide column 34 can drive the first slider 36 to move in the direction away from the molding space, thereby completing the mold opening operation, so that the molded shell product 90 can be discharged.

[0043] like Figures 4 to 7 As shown, preferably, the first slide position 30 is further provided with a side wall assembly 40, and the side wall assembly 40 is provided with a side wall protrusion 41, a side wall inclined push rod 43 and a side wall inclined push seat 42. The side wall protrusion 41 is used to form a side wall countersunk hole 92 extending along the first side wall direction on the shell product 90, and the interior of the first slider 36 is provided with a side wall guide hole 37 corresponding to the position of the side wall inclined push rod 43. The side wall inclined push rod 43 is passed through the side wall guide hole 37 and can be guided by the side wall guide hole 37, thereby moving a certain distance along the first side wall direction.

[0044] Specifically, during mold opening, the first shovel base 31 and the first inclined guide pillar 34 cooperate to drive the first slider 36 to move a certain distance, and drive the side wall inclined ejector rod 43 to move a certain distance perpendicular to the movement direction of the first slider 36, thereby releasing it from the side wall counterbore 92. The first slider 36 then drives the side wall assembly 40 to move a certain distance away from the molding space, thus completing the demolding operation.

[0045] Secondly, a demolding step 44 can be provided at the end of the side wall inclined push rod 43 away from the side wall protrusion 41, and a demolding square bar 38 can be provided at the end of the first slider 36 close to the side wall protrusion 41. The demolding square bar 38 is fixed to the first slider 36, and after the first slider 36 moves a certain distance away from the molding space, the demolding square bar 38 abuts against the demolding step 44, thereby driving the side wall inclined push rod 43 to move synchronously a certain distance.

[0046] like Figure 6 and Figure 7As shown, preferably, the side wall assembly 40 is further provided with an extension rod 45, one end of the extension rod 45 is fixedly connected to the side wall inclined top seat 42, and the other end thereof forms a first inclined surface 46, and the first shovel base 31 is provided with a mold clamping drive block 32 at a position corresponding to the first inclined surface 46, and the mold clamping drive block 32 is fixedly connected to the first shovel base 31, and a second inclined surface 33 is provided at one end thereof. The mold clamping drive block 32 cooperates with the extension rod 45 to drive the side wall inclined top rod 43 to move a certain distance toward the direction close to the molding space.

[0047] Specifically, during mold closing, the side wall protrusion 41 needs to be first moved to the molding opening of the side wall countersunk hole 92 of the shell product 90, so that when the first slider 36 moves toward the molding space, the side wall protrusion 41 can move a certain distance along the first side wall to reach the molding position of the side wall countersunk hole 92. Therefore, preferably, a corresponding mold closing drive block 32 is provided on the first shovel base 31. During mold closing, after the first shovel base 31 moves to close the mold, it drives the mold closing drive block 32 to move synchronously, so that the mold closing drive block 32 pushes the extension rod 45, thereby causing the side wall inclined push rod 43 to first move a certain distance toward the molding space to reach the opening position of the side wall countersunk hole 92.

[0048] Then the first shovel base 31 continues to move to close the mold and drives the first slider 36 to move toward the molding space. At the same time, the first slider 36 can push the side wall inclined push rod 43, so that the side wall inclined push rod 43 moves a certain distance in the direction of the side wall countersunk hole 92, thereby combining into a component for molding the side wall countersunk hole 92.

[0049] like Figure 8 As shown, preferably, the second row position 50 is provided with a second shovel base 51, a second inclined guide column 52, a second pressure strip 53 and a second slider 54, the second pressure strip 53 is fixedly connected to the rear mold frame 12, and cooperates with the rear mold frame 12 to form a second slide groove for the second slider 54 to slide; the second shovel base 51 is fixedly connected to the front mold frame 11, the second inclined guide column 52 is fixedly connected to the second shovel base 51, and cooperates with the inclined guide hole of the second slider 54, thereby driving the second slider 54 to slide a certain distance along the second slide groove.

[0050] Specifically, when closing the mold, the second inclined guide column 52 can drive the second slider 54 to move in the direction close to the molding space, thereby completing the mold closing operation, and the combination is combined into a molding space to perform a molding operation on the second side wall of the shell product 90; and when opening the mold, the second inclined guide column 52 can drive the second slider 54 to move in the direction away from the molding space, thereby completing the mold opening operation, so that the molded shell product 90 can be discharged.

[0051] like Figure 11As shown, preferably, the fourth row position 70 is provided with a fourth shovel base 71, a fourth inclined guide column 72, a fourth pressure strip 73 and a fourth slider 74, the fourth pressure strip 73 is fixedly connected to the rear mold frame 12, and cooperates with the rear mold frame 12 to form a fourth slide groove for the fourth slider 74 to slide; the fourth shovel base 71 is fixedly connected to the front mold frame 11, the fourth inclined guide column 72 is fixedly connected to the fourth shovel base 71, and cooperates with the inclined guide hole of the fourth slider 74, thereby driving the fourth slider 74 to slide a certain distance along the fourth slide groove.

[0052] Specifically, when closing the mold, the fourth inclined guide column 72 can drive the fourth slider 74 to move in the direction close to the molding space, thereby completing the mold closing operation, and combining to form a molding space to perform a molding operation on the fourth side wall of the shell product 90; and when opening the mold, the fourth inclined guide column 72 can drive the fourth slider 74 to move in the direction away from the molding space, thereby completing the mold opening operation, so that the molded shell product 90 can be discharged.

[0053] like Figure 9 and Figure 10 As shown, preferably, the third row position 60 is provided with a third shovel base 61, a third guide block 62, a third pressure strip 63 and a third slider 64, the third pressure strip 63 is fixedly connected to the rear mold frame 12, and cooperates with the rear mold frame 12 to form a third slide groove for the third slider 64 to slide; the third shovel base 61 is fixedly connected to the front mold frame 11, the third guide block 62 is fixedly connected to the third shovel base 61, and the third slider 64 is provided with an oblique guide groove 65, which is sleeved on the third guide block 62, so that the third guide block 62 and the oblique guide groove 65 cooperate with each other, thereby driving the third slider 64 to move a certain distance along the third slide groove.

[0054] Specifically, when closing the mold, the third shovel base 61 can drive the third slider 64 to move toward the direction close to the molding space by utilizing the cooperation between the third guide block 62 and the inclined guide groove 65, thereby completing the mold closing operation, and coordinating to form a molding space to perform a molding operation on the third side wall of the shell product 90; and when opening the mold, the third shovel base 61 can drive the third slider 64 to move away from the molding space, thereby completing the mold opening operation, so that the molded shell product 90 can be discharged.

[0055] like Figure 2As shown, preferably, the molding assembly 20 is provided with a first molding part 21 and a second molding part 22, and the first molding part 21 and the second molding part 22 are respectively installed between the front mold frame 11 and the rear mold frame 12, and form two molding spaces for simultaneously injecting two shell products 90; the third shovel base 61 of the third row 60 of the first molding part 21 and the third shovel base 61 of the third row 60 of the second molding part 22 are the same component, and the third guide block 62 of the third row 60 of the first molding part 21 and the third guide block 62 of the third row 60 of the second molding part 22 are respectively fixed to both sides of the third shovel base 61.

[0056] Specifically, to simultaneously mold two shell products 90 in the same injection mold, two molding sections can be provided, each used to separately mold the two shell products 90. To save mold size and reduce mold manufacturing costs, a third row position 60 can be provided at the adjacent ends of the two molding sections, and a third shovel base 61 can be used as a shared shovel base to simultaneously drive the third row positions 60 of the two molding sections.

[0057] Secondly, preferably, two slopes are respectively provided on both sides of the third shovel base 61, and the third guide blocks 62 of the two forming parts are respectively fixed to the two slopes, so that the two third guide blocks 62 can respectively drive the third sliders 64 of the two forming parts, thereby completing the mold closing or mold opening operation.

[0058] In another embodiment, preferably, it also includes a front mold fixing plate, a casting system, a cooling system, an ejection system, a guide system and a rear mold fixing plate, the front mold frame 11 is installed on the front mold fixing part, the casting system is used to perform hot flow casting in the molding space, the cooling system cools the injection molded parts in the molding space, the ejection system ejects the cooled shell product 90, the rear mold frame 12 is installed on the rear mold fixing plate, and the guide system is used to guide the injection mold during the mold closing process.

[0059] Specifically, to install the front mold frame 11, a corresponding front mold fixing plate is required. Similarly, the rear mold frame 12 also requires a matching rear mold fixing plate, thereby enabling the entire injection mold to be closed or opened. It is understood that the entire injection mold also requires a corresponding pouring system, cooling system, ejection system, and guide system to enable the entire injection mold to perform the predetermined injection molding operation. These systems can all be configured using existing technologies and will not be further described.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. An injection mold for a walkie-talkie housing, characterized in that: The invention comprises a mold frame assembly (10) and a molding assembly (20), wherein the mold frame assembly (10) is provided with a front mold frame (11) and a rear mold frame (12), and the molding assembly (20) is installed between the front mold frame (11) and the rear mold frame (12) to form a molding space for an injection-molded shell product (90); the molding assembly (20) is provided with a mold core assembly (23) and a slide assembly, wherein the mold core assembly (23) is provided with a front mold core (24) and a rear mold core (25), which are respectively combined to form the top and bottom of the molding space, and the slide assembly is provided with a first slide (30), a second slide (50), a third slide (60) and a fourth slide (70), which are respectively combined to form the four side walls of the molding space, and further comprises a slanted top assembly (80) for molding an internal step position (91) of the shell product (90).

2. The injection mold for a walkie-talkie housing according to claim 1, characterized in that: The inclined ejector assembly (80) is provided with a first inclined ejector rod (81), a first guide block (83) and a first inclined ejector seat (84); one end of the first inclined ejector rod (81) is provided with a step protrusion (82) corresponding to the internal step position (91) of the shell product (90); the other end thereof forms a transmission connection with the first inclined ejector seat (84), so that the first inclined ejector seat (84) can drive the first inclined ejector rod (81) to move in the mold opening direction or the mold closing direction; the first guide block (83) is fixed to the rear mold core (25) and is sleeved on the first inclined ejector rod (81), and can drive the first inclined ejector rod (81) transversely perpendicular to the mold opening direction, so that the step protrusion (82) of the first inclined ejector rod (81) is disengaged from the internal step position (91), thereby completing the demoulding operation.

3. The injection mold for a walkie-talkie housing according to claim 1, characterized in that: The first row position (30) is provided with a first shovel base (31), a first oblique guide column (34), a first pressure strip (35) and a first slider (36), wherein the first pressure strip (35) is fixed to the rear mold frame (12) and cooperates with the rear mold frame (12) to form a first slide groove for the first slider (36) to slide; the first shovel base (31) is fixed to the front mold frame (11), and the first oblique guide column (34) is fixed to the first shovel base (31) and cooperates with the oblique guide hole of the first slider (36), thereby driving the first slider (36) to slide along the first slide groove for a certain distance.

4. The injection mold for a walkie-talkie housing according to claim 3, characterized in that: The first row position (30) is further provided with a side wall assembly (40), and the side wall assembly (40) is provided with a side wall protrusion (41), a side wall inclined push rod (43) and a side wall inclined push seat (42). The side wall protrusion (41) is used to form a side wall countersunk hole (92) extending along the first side wall direction on the shell product (90). The interior of the first sliding block (36) is provided with a side wall guide hole (37) corresponding to the position of the side wall inclined push rod (43). The side wall inclined push rod (43) is passed through the side wall guide hole (37) and can be guided by the side wall guide hole (37), thereby moving a certain distance along the first side wall direction.

5. The injection mold for a walkie-talkie housing according to claim 4, characterized in that: The side wall assembly (40) is further provided with an extension rod (45), one end of the extension rod (45) is fixedly connected to the side wall inclined top seat (42), and the other end thereof forms a first inclined surface (46), and the first shovel base (31) is provided with a mold clamping drive block (32) at a position corresponding to the first inclined surface (46), and the mold clamping drive block (32) is fixedly connected to the first shovel base (31), and one end thereof is provided with a second inclined surface (33), and the mold clamping drive block (32) cooperates with the extension rod (45) to drive the side wall inclined top rod (43) to move a certain distance toward the direction close to the molding space.

6. The injection mold for a walkie-talkie housing according to claim 1, characterized in that: The second row position (50) is provided with a second shovel base (51), a second inclined guide column (52), a second pressure strip (53) and a second slider (54); the second pressure strip (53) is fixed to the rear mold frame (12) and cooperates with the rear mold frame (12) to form a second slide groove for the second slider (54) to slide; the second shovel base (51) is fixed to the front mold frame (11); the second inclined guide column (52) is fixed to the second shovel base (51) and cooperates with the inclined guide hole of the second slider (54), thereby driving the second slider (54) to slide a certain distance along the second slide groove.

7. The injection mold for a walkie-talkie housing according to claim 1, characterized in that: The fourth row position (70) is provided with a fourth shovel base (71), a fourth oblique guide column (72), a fourth pressure strip (73) and a fourth slider (74); the fourth pressure strip (73) is fixed to the rear mold frame (12) and cooperates with the rear mold frame (12) to form a fourth slide groove for the fourth slider (74) to slide; the fourth shovel base (71) is fixed to the front mold frame (11), the fourth oblique guide column (72) is fixed to the fourth shovel base (71) and cooperates with the oblique guide hole of the fourth slider (74), thereby driving the fourth slider (74) to slide along the fourth slide groove for a certain distance.

8. The injection mold for a walkie-talkie housing according to claim 1, characterized in that: The third row position (60) is provided with a third shovel base (61), a third guide block (62), a third pressure strip (63) and a third slider (64); the third pressure strip (63) is fixed to the rear mold frame (12) and cooperates with the rear mold frame (12) to form a third slide groove for the third slider (64) to slide; the third shovel base (61) is fixed to the front mold frame (11); the third guide block (62) is fixed to the third shovel base (61); the third slider (64) is provided with an oblique guide groove (65); the oblique guide groove (65) is sleeved on the third guide block (62), so that the third guide block (62) and the oblique guide groove (65) cooperate with each other, thereby driving the third slider (64) to move a certain distance along the third slide groove.

9. The injection mold for a walkie-talkie housing according to claim 8, characterized in that: The molding assembly (20) is provided with a first molding part (21) and a second molding part (22), the first molding part (21) and the second molding part (22) are respectively installed between the front mold frame (11) and the rear mold frame (12), and form two molding spaces for simultaneously injecting two shell products (90); the third shovel base (61) of the third row (60) of the first molding part (21) and the third shovel base (61) of the third row (60) of the second molding part (22) are the same component, and the third guide block (62) of the third row (60) of the first molding part (21) and the third guide block (62) of the third row (60) of the second molding part (22) are respectively fixed to both sides of the third shovel base (61).

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