Injection molding mold for receiver housing

Abstract

The utility model provides a receiver shell injection molding mold, comprising an upper mold component and a lower mold component, the lower mold component comprising a lower mold bottom plate, a square iron, a lower mold plate, a lower model core, a guide column, a top plate, an ejector pin and a buckle insert, the lower model core is fixed to the upper middle part of the lower mold plate, the upper and lower ends of the guide column are respectively fixed to the lower mold plate and the lower mold bottom plate, the top plate is slidably connected to the guide column, the lower end of the ejector pin is fixed to the top plate, and the upper end is sequentially passed through the lower mold plate and the lower model core, the buckle insert is fixed to the lower model core and the upper end protrudes from the lower model core, the lower end surface of the upper mold component is provided with a buckle molding cavity, the upper end of the buckle insert corresponds to the buckle molding cavity, the buckle insert and the buckle molding cavity are both arranged in multiple groups, the buckle insert material is copper alloy, and the advantage is that the receiver buckle can be cooled faster, thereby reducing the generation of defects such as deformation and shrinkage, shortening the cooling cycle, and thus improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of mold structures, in particular to an injection molding mold for a receiver shell. Background Art

[0002] A receiver is an electronic device whose main function is to receive signals from a transmitter. Receivers play an important role in the field of communications and can receive signals such as radio waves, infrared rays, Bluetooth, and WiFi. Receivers are widely used in wireless communications, electronic devices, navigation, and positioning.

[0003] In order to facilitate hanging the receiver on a wall or other objects, multiple sets of buckles are set on the back of the receiver shell, and a hanging plate is fixed on the wall. The buckles are hooked on the left and right sides and the upper edge of the hanging plate, so as to realize the hanging of the receiver. However, the plastic at the connection between the buckle and the receiver body is thicker, and the shrinkage is large after molding, while the buckle is thinner and is easy to deform after injection molding. Therefore, the buckle position accuracy on the receiver shell is low, resulting in uneven movement when hanging on the hanging plate, and the setting cannot be hung. By increasing the cooling time after injection molding, the deformation problem of the buckle can be reduced to a certain extent, but the production efficiency will be greatly reduced. Therefore, it is necessary to make a receiver shell injection molding mold to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a receiver housing injection molding die to solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A receiver shell injection molding mold comprises an upper mold assembly and a lower mold assembly, wherein the lower mold assembly comprises a lower mold bottom plate, square iron, a lower mold plate, a lower model core, a guide column, a top plate, an ejector pin and a buckle insert, wherein two groups of square irons are arranged and are respectively fixed on the left and right sides above the lower mold bottom plate, the left and right ends of the lower mold plate are fixed above the two groups of square irons, the lower model core is fixed at the upper middle part of the lower mold plate, the upper and lower ends of the guide pin are respectively fixed on the lower mold plate and the lower mold bottom plate, the top plate is slidably connected to the guide column, the lower end of the ejector pin is fixed on the top plate, and the upper end passes through the lower mold plate and the lower model core in sequence, the buckle insert is fixed on the lower model core and the upper end protrudes from the lower model core, the lower end surface of the upper mold assembly is provided with a buckle molding cavity, the upper end of the buckle insert corresponds to the buckle molding cavity, multiple groups of the buckle insert and the buckle molding cavity are arranged, and the buckle insert material is copper alloy.

[0007] Further description of the utility model: the upper mold assembly includes an upper mold base plate, an upper mold plate and an upper mold core. The upper mold plate is fixed below the upper mold base plate, the upper mold core is fixed below the middle part of the upper mold plate, and a snap-on molding cavity is opened below the upper mold core.

[0008] Further description of the utility model: there are gaps between the outer side and the top end of the buckle insert and the buckle molding cavity.

[0009] Further description of the utility model: the four corners of the lower model core are all provided with positioning grooves, and the four corners of the upper model core are all provided with positioning bosses, and the positioning bosses correspond to the positioning grooves.

[0010] Further description of the utility model: it also includes a side pull-out assembly, which includes a side pull-out slider, a side pull-out insert, a fixed seat and a side pull-out oblique pin. The side pull-out slider is slidably connected to the lower template. Four groups of side pull-out sliders are arranged and correspond to the four sides of the lower model core. A limiting slot is provided on the outer side of the side pull-out slider. The outer side of the side pull-out insert is fixed on the side pull-out slider, and the inner side corresponds to the lower model core. The upper end of the fixed seat is fixed on the upper template, and the lower end is provided with a limiting pressure plate protruding downward. The limiting pressure plate is inserted in the limiting slot. The upper end of the side pull-out oblique pin is fixed on the fixed seat and the lower end passes through the side pull-out slider, and the lower end of the side pull-out oblique pin is inclined outward.

[0011] The beneficial effects of the utility model are as follows: when the mold is closed, the buckle insert corresponds to the buckle molding cavity. During injection molding, plastic is injected into the buckle molding cavity to form a receiver buckle. After cooling, the mold is opened, and the top plate moves upward along the guide column under the drive of the machine table top column. The top plate drives the ejector pin upward, and the ejector pin ejects the receiver shell upward to facilitate material removal. By arranging the buckle insert on the lower model core, on the one hand, a through hole can be formed at the bottom of the receiver buckle, reducing the wall thickness of the connection between the receiver buckle and the receiver body, so that the deformation amount is reduced during the cooling process. On the other hand, the buckle insert made of copper alloy has excellent thermal conductivity compared with other materials, and can quickly and evenly transfer heat to the mold surface, so that the cooling speed of the receiver buckle is faster, thereby reducing the occurrence of defects such as deformation and shrinkage, shortening the cooling cycle, and thus improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the overall structure diagram of the utility model;

[0013] Figure 2 It is a structural diagram of the upper die assembly in the utility model;

[0014] Figure 3 It is a structural diagram of the lower mold assembly of the utility model;

[0015] Figure 4 It is a structural diagram of the receiver housing in the utility model;

[0016] Description of reference numerals:

[0017] 1. Upper mold assembly; 11. Upper mold base plate; 12. Upper mold plate; 13. Upper model core; 131. Buckle molding cavity; 132. Positioning boss; 2. Lower mold assembly; 21. Lower mold base plate; 22. Square iron; 23. Lower mold plate; 24. Lower model core; 241. Positioning groove; 25. Guide column; 26. Top plate; 27. Ejector pin; 28. Buckle insert; 3. Side drawer assembly; 31. Side drawer slider; 311. Limiting slot; 32. Side drawer insert; 33. Fixed seat; 331. Limiting pressure plate; 34. Side drawer oblique pin; 4. Receiver housing; 5. Receiver buckle. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figure 4 As shown, multiple groups of receiver buckles 5 are arranged on the receiver housing 4, and the hanging plate is fixed on the wall. The receiver buckles 5 are buckled onto the hanging plate, so that the receiver is easy to hang and disassemble. The hooks of the receiver buckles 5 are all facing inward and correspond to the left and right sides and the upper end of the hanging plate.

[0020] like Figures 1 to 3 As shown, a receiver housing 4 injection molding mold includes an upper mold component 1 and a lower mold component 2, wherein the lower mold component 2 includes a lower mold bottom plate 21, a square iron 22, a lower mold plate 23, a lower mold core 24, a guide column 25, a top plate 26, an ejector pin 27 and a buckle insert 28, wherein two groups of square irons 22 are provided and are respectively fixed on the upper left and right sides of the lower mold bottom plate 21, the left and right ends of the lower mold plate 23 are fixed above the two groups of square irons 22, the lower mold core 24 is fixed in the upper middle part of the lower mold plate 23, and the upper and lower ends of the guide column 25 are respectively fixed On the lower mold plate 23 and the lower mold bottom plate 21, the top plate 26 is slidably connected to the guide column 25, the lower end of the ejector pin 27 is fixed on the top plate 26, and the upper end passes through the lower mold plate 23 and the lower model core 24 in sequence, the snap-in insert 28 is fixed on the lower model core 24 and the upper end protrudes from the lower model core 24, and the lower end surface of the upper mold assembly 1 is provided with a snap-in molding cavity 131, and the upper end of the snap-in insert 28 corresponds to the inside of the snap-in molding cavity 131, and the snap-in insert 28 and the snap-in molding cavity 131 are both provided with multiple groups, and the material of the snap-in insert 28 is copper alloy.

[0021] When the mold is closed, the buckle insert 28 corresponds to the buckle molding cavity 131. During injection molding, plastic is injected into the buckle molding cavity 131 to form the receiver buckle 5. After cooling, the mold is opened, and the top plate 26 moves upward along the guide column 25 under the drive of the machine table top column. The top plate 26 drives the ejector pin 27 upward, and the ejector pin 27 ejects the receiver shell 4 upward to facilitate material removal. By arranging the buckle insert 28 on the lower model core 24, on the one hand, a through hole can be formed at the bottom of the receiver buckle 5, reducing the wall thickness of the connection between the receiver buckle 5 and the receiver body, so that the deformation amount is reduced during the cooling process. On the other hand, the buckle insert 28 made of copper alloy has excellent thermal conductivity compared with other materials, and can quickly and evenly transfer heat to the mold surface, so that the cooling speed of the receiver buckle 5 is faster, thereby reducing the occurrence of defects such as deformation and shrinkage, shortening the cooling cycle, and improving production efficiency.

[0022] The upper mold assembly 1 includes an upper mold base plate 11, an upper mold plate 12 and an upper mold core 13. The upper mold plate 12 is fixed below the upper mold base plate 11, and the upper mold core 13 is fixed at the middle of the lower part of the upper mold plate 12. A buckle molding cavity 131 is provided below the upper mold core 13. After mold closing, an injection molding cavity exists between the upper mold core 13 and the lower mold core 24, and the shape of the injection molding cavity matches the shape of the receiver housing 4.

[0023] There are gaps between the outer side and top end of the buckle insert 28 and the buckle molding cavity 131 . After plastic is injected into the gap, the receiver buckle 5 is formed.

[0024] The four corners of the lower mold core 24 are provided with positioning grooves 241, and the four corners of the upper mold core 13 are provided with positioning bosses 132, and the positioning bosses 132 correspond to the positioning grooves 241. After the mold is closed, the positioning bosses 132 correspond to the positioning grooves 241 one by one, so as to ensure the matching accuracy of the upper mold core 13 and the lower mold core 24, and improve the injection molding accuracy of the receiver housing 4.

[0025] In the present design, a side drawer assembly 3 is also included, which includes a side drawer slider 31, a side drawer insert 32, a fixing seat 33 and a side drawer slant pin 34. The side drawer slider 31 is slidably connected to the lower template 23. Four groups of side drawer sliders 31 are arranged and correspond to the four sides of the lower model core 24. A limiting slot 311 is provided on the outer side of the side drawer slider 31. The outer side of the side drawer insert 32 is fixed on the side drawer slider 31, and the inner side corresponds to the lower model core 24. The upper end of the fixing seat 33 is fixed on the upper template 12, and the lower end is provided with a limiting pressure plate 331 protruding downward. The limiting pressure plate 331 is inserted in the limiting slot 311. The upper end of the side drawer slant pin 34 is fixed on the fixing seat 33 and the lower end passes through the side drawer slider 31. The lower end of the side drawer slant pin 34 is inclined outward.

[0026] When the mold is closed, the side pull-out inclined pin 34 drives the side pull-out slider 31 to move inward, and the side pull-out limit pressure plate 331 is inserted into the limit slot 311, so that the side pull-out insert 32 corresponds to the four sides of the injection cavity. During the injection molding process, the side pull-out insert 32 is used to form the concave structure or hole structure on the receiver shell 4, such as heat dissipation holes.

[0027] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A receiver housing injection molding mold, characterized in that: The utility model comprises an upper mold assembly and a lower mold assembly, wherein the lower mold assembly comprises a lower mold bottom plate, a square iron, a lower mold plate, a lower mold core, a guide column, a top plate, an ejector pin and a snap-on insert, wherein the square iron is arranged in two groups and are respectively fixed on the left and right sides above the lower mold bottom plate, the left and right ends of the lower mold plate are fixed above the two groups of square irons, the lower mold core is fixed in the middle part above the lower mold plate, the upper and lower ends of the guide pin are respectively fixed on the lower mold plate and the lower mold bottom plate, the top plate is slidably connected with the guide column, the lower end of the ejector pin is fixed on the top plate, and the upper end passes through the lower mold plate and the lower mold core in sequence, the snap-on insert is fixed on the lower mold core and the upper end protrudes from the lower mold core, the lower end surface of the upper mold assembly is provided with a snap-on molding cavity, the upper end of the snap-on insert corresponds to the snap-on molding cavity, the snap-on insert and the snap-on molding cavity are both arranged in multiple groups, and the material of the snap-on insert is copper alloy.

2. The receiver housing injection molding mold according to claim 1, characterized in that: The upper mold assembly includes an upper mold base plate, an upper mold plate and an upper mold core. The upper mold plate is fixed below the upper mold base plate, the upper mold core is fixed at the lower middle part of the upper mold plate, and the buckle molding cavity is opened below the upper mold core.

3. The receiver housing injection molding mold according to claim 2, characterized in that: There are gaps between the outer side and the top end of the buckle insert and the buckle molding cavity.

4. The receiver housing injection molding mold according to claim 2, characterized in that: The four corners of the lower mold core are all provided with positioning grooves, and the four corners of the upper mold core are all provided with positioning bosses, and the positioning bosses correspond to the positioning grooves.

5. The receiver housing injection molding mold according to claim 2, characterized in that: It also includes a side drawer assembly, which includes a side drawer slider, a side drawer insert, a fixed seat and a side drawer oblique pin. The side drawer slider is slidably connected to the lower template. The side drawer slider is arranged in four groups and corresponds to the four sides of the lower model core. A limiting slot is provided on the outer side of the side drawer slider. The outer side of the side drawer insert is fixed to the side drawer slider, and the inner side corresponds to the lower model core. The upper end of the fixed seat is fixed to the upper template, and the lower end is provided with a limiting pressure plate protruding downward, and the limiting pressure plate is inserted in the limiting slot. The upper end of the side drawer oblique pin is fixed to the fixed seat and the lower end passes through the side drawer slider. The lower end of the side drawer oblique pin is inclined outward.

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