Earphone production injection mold

Abstract

The utility model relates to the technical field of earphone production, in particular to an earphone production injection mold which comprises a bottom plate and a top plate, a movable mold plate is fixed to the bottom of the top plate, mold feet are fixed to the two sides of the top of the bottom plate, a fixed mold plate is fixed to the tops of the mold feet, and a mold cavity is formed in the top of the fixed mold plate. A demolding mechanism is arranged between the bottom plate and the fixed mold plate, a cleaning mechanism is arranged between the fixed mold plate and the mold cavity, and a cooling mechanism is arranged in the fixed mold plate; high-pressure air can be generated through the micro air pump, air blowing cleaning can be conducted on the mold cavity through the ventilation pipelines on the two sides when the mold is opened, cleaning dead corners can be avoided through distribution on the two sides, the groove and the protruding block on the top can be sealed, normal machining cannot be affected during forming, and the mold is convenient to use. The micro water pump is matched with the cooling pipeline to perform auxiliary cooling on the fixed mold plate, and the ejector rod is matched with the spring to eject out an injection molding part to facilitate discharging when the mold plate is separated.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone production, in particular to an injection mold for earphone production. Background Art

[0002] An injection mold is a tool that can solidify heated raw materials into products of specific shapes and sizes under the action of external force. The mold includes a movable mold plate and a fixed mold plate. The fixed mold plate and the movable mold plate have pre-opened inner cavities. The heated raw materials are introduced into the inner cavities. When the movable mold plate and the fixed mold plate are closed, the raw materials can be extruded and solidified to form products, injection molds.

[0003] At present, in the production process of earphone shells, it is usually necessary to use an injection mold to shape the shell of the Bluetooth earphone. For example, China Patent Publication No. "CN214026976U" discloses a precision injection mold for an earphone wire control shell assembly, which includes a lower mold, an upper mold is provided above the lower mold, and a screw barrel is opened on the outer top wall of the lower mold. A screw nut is fixedly installed on the inner circumferential wall of the screw barrel, and a screw is meshedly connected to the inner circumferential wall of the screw nut, and a connecting shaft is welded to the end of the screw away from the screw nut.

[0004] The current earphone mold is injection molded by combining an upper mold cavity and a lower mold cavity. During the production process, dust is easily introduced into the mold cavity. Since the inner side of the mold cavity is relatively tight and contains many grooves, it is inconvenient to clean the dust once it enters, which affects the processing. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that dust is easily introduced into the mold cavity during the manufacturing process. Since the inner side of the mold cavity is relatively tight and contains many grooves, it is inconvenient to clean the dust once it enters, which affects the processing. An injection mold for earphone production is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An injection mold for producing headphones is designed, comprising a bottom plate and a top plate, a movable mold plate is fixed to the bottom of the top plate, mold feet are fixed to both sides of the top of the bottom plate, a fixed mold plate is fixed to the top of the mold feet, a mold cavity is opened on the top of the fixed mold plate, a demolding mechanism is provided between the bottom plate and the fixed mold plate, a cleaning mechanism is provided between the fixed mold plate and the mold cavity, and a cooling mechanism is provided inside the fixed mold plate.

[0008] Furthermore, the demoulding mechanism includes a plurality of guide pillars, which are fixed between the fixed mold plate and the bottom plate. The surface of the guide pillars is slidably connected with a movable plate. A push rod is fixed on the top of the movable plate. The push rod passes through the fixed mold plate and extends to the surface of the mold cavity. The surface of the guide pillars is sleeved with a spring.

[0009] Furthermore, the cleaning mechanism includes a groove and a protrusion, the groove is opened on both sides of the mold cavity, the protrusion is fixed on both sides of the bottom of the movable mold plate, a ventilation duct is opened on one side of the groove and the ventilation duct extends to the outside of the fixed mold plate, and the outside of the ventilation duct is connected to a detachable cleaning component.

[0010] Furthermore, the detachable cleaning component includes a threaded tube, which is connected to one end of the ventilation duct, a split tube is threadedly connected to the surface of the threaded tube, one side of the split tube is connected to a connecting tube, and the other end of the connecting tube is connected to a micro air pump.

[0011] Furthermore, the cooling mechanism includes a cooling pipeline, which is opened inside the fixed mold plate and has an S-shaped distribution. Both ends of the cooling pipeline are respectively connected to a water inlet pipe and a water outlet pipe, and the surface of the water inlet pipe is connected to a micro water pump.

[0012] Furthermore, guide blocks are fixed around the top of the fixed template, guide grooves are opened around the bottom of the movable template, and the guide blocks are movably connected to the guide grooves.

[0013] The utility model proposes an injection mold for producing headphones, which has the following beneficial effects: the utility model can generate high-pressure gas through a micro air pump, and the mold cavity can be blown and cleaned through ventilation pipes on both sides when the mold is opened, the distribution on both sides can avoid cleaning dead corners, the grooves and protrusions on the top can be sealed, and normal processing will not be affected during molding, the micro water pump cooperates with the cooling pipeline to assist in cooling the fixed mold plate, and the ejector rod cooperates with the spring to eject the injection molded part when the mold plate is separated for easy unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the movable template of the utility model;

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial three-dimensional cross-sectional view of the fixed template of the utility model.

[0018] In the figure: 1. bottom plate; 2. top plate; 3. movable plate; 4. mold foot; 5. fixed plate; 6. mold cavity; 7. demoulding mechanism; 71. guide column; 72. movable plate; 73. ejector rod; 74. spring; 8. cleaning mechanism; 81. groove; 82. bump; 83. ventilation duct; 9. cooling mechanism; 91. cooling duct; 92. water inlet pipe; 93. water outlet pipe; 94. micro water pump; 10. detachable cleaning component; 101. threaded pipe; 102. split pipe; 103. connecting pipe; 104. micro air pump; 11. guide block; 12. guide groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 , an injection mold for earphone production, comprising a bottom plate 1 and a top plate 2, a movable mold plate 3 is fixed to the bottom of the top plate 2, mold feet 4 are fixed to both sides of the top of the bottom plate 1, a fixed mold plate 5 is fixed to the top of the mold feet 4, a mold cavity 6 is opened on the top of the fixed mold plate 5, a demolding mechanism 7 is provided between the bottom plate 1 and the fixed mold plate 5, a cleaning mechanism 8 is provided between the fixed mold plate 5 and the mold cavity 6, and a cooling mechanism 9 is provided inside the fixed mold plate 5; the injection mold can generate high-pressure gas through a micro air pump 104, and the mold cavity 6 can be blown and cleaned through the ventilation pipes 83 on both sides when the mold is opened, the distribution on both sides can avoid cleaning dead corners, the groove 81 and the protrusion 82 on the top can be sealed, and normal processing will not be affected during molding, the micro water pump 94 cooperates with the cooling pipe 91 to assist in cooling the fixed mold plate 5, and the ejector rod 73 cooperates with the spring 74 to eject the injection molded part when the mold is separated for easy unloading.

[0021] In this embodiment, the demolding mechanism 7 includes a plurality of guide pillars 71, and the guide pillars 71 are fixed between the fixed mold plate 5 and the bottom plate 1. The surface of the guide pillars 71 is slidably connected with a movable plate 72, and a push rod 73 is fixed on the top of the movable plate 72. The push rod 73 passes through the fixed mold plate 5 and extends to the surface of the mold cavity 6. The surface of the guide pillars 71 is sleeved with a spring 74. The push rod 73 cooperates with the spring 74 to eject the injection molded part when the mold plates are separated to facilitate unloading.

[0022] Furthermore, the cleaning mechanism 8 includes a groove 81 and a protrusion 82, the groove 81 is opened on both sides of the mold cavity 6, and the protrusion 82 is fixed on both sides of the bottom of the movable mold plate 3. A ventilation duct 83 is opened on one side of the groove 81 and the ventilation duct 83 extends to the outside of the fixed mold plate 5. The outside of the ventilation duct 83 is connected to a detachable cleaning component 10. When the mold is opened, the mold cavity 6 can be blown and cleaned through the ventilation ducts 83 on both sides.

[0023] Furthermore, the detachable cleaning component 10 includes a threaded tube 101, which is connected to one end of the ventilation pipe 83. The surface of the threaded tube 101 is threadedly connected to a split tube 102. One side of the split tube 102 is connected to a connecting tube 103. The other end of the connecting tube 103 is connected to a micro air pump 104. High-pressure gas can be generated by the micro air pump 104. The threaded tube 101 can facilitate the disassembly of the component.

[0024] In addition, the cooling mechanism 9 includes a cooling pipeline 91, which is opened inside the fixed mold plate 5 and is distributed in an S shape. The two ends of the cooling pipeline 91 are respectively connected to a water inlet pipe 92 and a water outlet pipe 93. The surface of the water inlet pipe 92 is connected to a micro water pump 94. The micro water pump 94 cooperates with the cooling pipeline 91 to assist in cooling the fixed mold plate 5.

[0025] It should be noted that guide blocks 11 are fixed around the top of the fixed template 5, and guide grooves 12 are opened around the bottom of the movable template 3. The guide blocks 11 are movably connected to the guide grooves 12. The guide blocks 11 cooperate with the guide grooves 12 to perform auxiliary guiding to improve the accuracy of mold closing.

[0026] Working method: When performing earphone injection molding, the staff installs the mold on the processing platform, closes the movable mold plate 3 and the fixed mold plate 5 through external hydraulic power, and then injects the molten plastic into the mold cavity through the injection port. After a period of time, the micro water pump 94 is turned on and the external water source is connected to the water inlet pipe 92 and the water outlet pipe 93. The cold water can cool the fixed mold plate 5. Then, the movable mold plate 3 is pulled open. When the movable mold plate 3 is pulled up, the movable plate 72 at the bottom will drop under the action of the spring 74, and the plastic parts will be slightly lifted up to facilitate unloading. Then the micro air pump 104 is turned on. The micro air pump 104 generates high-pressure gas, which enters the ventilation pipe 83 through the connecting pipe 103 and the split pipe 102. After the mold is opened, the gas can directly clean the mold cavity 6.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for producing headphones, comprising a bottom plate (1) and a top plate (2), characterized in that: A movable mold plate (3) is fixed at the bottom of the top plate (2), mold feet (4) are fixed on both sides of the top of the bottom plate (1), a fixed mold plate (5) is fixed on the top of the mold feet (4), a mold cavity (6) is opened on the top of the fixed mold plate (5), a demoulding mechanism (7) is provided between the bottom plate (1) and the fixed mold plate (5), a cleaning mechanism (8) is provided between the fixed mold plate (5) and the mold cavity (6), and a cooling mechanism (9) is provided inside the fixed mold plate (5).

2. The headphone production injection mold according to claim 1, characterized in that: The demoulding mechanism (7) comprises a plurality of guide pillars (71), wherein the guide pillars (71) are fixed between the fixed mold plate (5) and the bottom plate (1), and the surfaces of the guide pillars (71) are slidably connected with a movable plate (72), and a push rod (73) is fixed on the top of the movable plate (72), and the push rod (73) passes through the fixed mold plate (5) and extends to the surface of the mold cavity (6), and a spring (74) is sleeved on the surface of the guide pillars (71).

3. The headphone production injection mold according to claim 1, characterized in that: The cleaning mechanism (8) comprises a groove (81) and a protrusion (82), wherein the groove (81) is provided on both sides of the mold cavity (6), and the protrusion (82) is fixed to both sides of the bottom of the movable mold plate (3), a ventilation duct (83) is provided on one side of the groove (81) and the ventilation duct (83) extends to the outside of the fixed mold plate (5), and the outside of the ventilation duct (83) is connected to a detachable cleaning component (10).

4. The headphone production injection mold according to claim 3, characterized in that: The detachable cleaning component (10) comprises a threaded tube (101), wherein the threaded tube (101) is connected to one end of a ventilation pipe (83), a split tube (102) is threadedly connected to the surface of the threaded tube (101), one side of the split tube (102) is connected to a connecting tube (103), and the other end of the connecting tube (103) is connected to a micro air pump (104).

5. The headphone production injection mold according to claim 1, characterized in that: The cooling mechanism (9) comprises a cooling pipeline (91), the cooling pipeline (91) is opened inside the fixed mold plate (5) and the cooling pipeline (91) is distributed in an S shape, the two ends of the cooling pipeline (91) are respectively connected to a water inlet pipe (92) and a water outlet pipe (93), and the surface of the water inlet pipe (92) is connected to a micro water pump (94).

6. The headphone production injection mold according to claim 1, characterized in that: Guide blocks (11) are fixed around the top of the fixed template (5), and guide grooves (12) are opened around the bottom of the movable template (3), and the guide blocks (11) are movably connected to the guide grooves (12).

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