Plastic mold for earphone rear plug

Abstract

The utility model discloses a plastic mould for an earphone rear plug. The plastic mould comprises a fixed bracket, a transmission push cylinder, an upper mould, a glue injection hose, a lower mould and a demoulding device, the demolding device is arranged, an electric push rod is started to push a gas push plug to movably stretch out and draw back in a mounting cylinder, a gas guide pipe can guide gas into the mounting cylinder, a gas guide hopper guides the gas into a film remover, and the film remover is arranged to be matched with the change of the gas in the mounting cylinder to move; according to the mold release device, the mold release device is arranged, so that a product mold is properly ejected by the mold release device, the product mold is prevented from being adhered to the upper part of the lower mold, the demolding device assists the product mold in completing demolding work, and the problem that flaws are caused due to the fact that the mold is not completely cooled and has viscidity when an outer side auxiliary demolding mode is adopted for auxiliary demolding in traditional equipment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, and specifically relates to a plastic mold for an earphone rear plug. Background Art

[0002] A plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the convex and concave molds and the auxiliary molding system of the mold can process a series of plastic parts with different shapes and sizes. In the production process of a Bluetooth earphone rear plug, a plastic mold is usually used for production and processing to achieve the rapid molding of the Bluetooth earphone rear plug, effectively improving the production efficiency of the Bluetooth earphone rear plug.

[0003] The Chinese patent document with the publication number CN215396592U discloses a plastic mold for a Bluetooth earphone rear plug. Through the cooperation of a clamping groove, a limiting insertion plate, and a limiting slot, multiple molds can be clamped and stacked, thereby realizing the stable storage of the molds, effectively increasing the stability when the molds are stacked, preventing the molds from tipping over, facilitating the stable stacking of the molds, and greatly reducing the occupied space when the molds are stacked, which helps to reduce the storage cost of the molds.

[0004] Although the original equipment also proposes to use a connecting mechanism to form a plug-in structure between the upper mold and the lower mold to realize the rapid mold closing and demolding of the auxiliary mold, in the actual practical process, since the straight body of the mold is not completely cooled, when demolding from the outside, the mold may still be sticky, and thus there may be problems with the surface of the mold after demolding. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a plastic mold for an earphone rear plug, which solves the above-mentioned problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized by the following technical solutions: A plastic mold for an earphone rear plug, comprising a fixed bracket, a transmission push cylinder, an upper mold, a glue injection hose, a lower mold, and a demolding device. The transmission push cylinder is installed at the top of the fixed bracket, and the transmission push cylinder is drivingly connected to the top of the upper mold. The upper mold is movably matched with the top of the lower mold. The glue injection hose is connected to the right end of the lower mold. The lower mold is connected to the lower end of the fixed bracket. The demolding device is installed on the fixed bracket, and the demolding device is slidably matched with the bottom of the lower mold. The demolding device includes an installation cylinder, an electric push rod, an air guide pipe, a push air plug, an air guide hopper, and a film lifter. The installation cylinder is fixed to the bottom of the fixed bracket. The electric push rod is fixed to the right end of the installation cylinder. The electric push rod is drivingly connected to the right end of the push air plug. The push air plug is slidably connected to the inside of the installation cylinder. The air guide pipe is arranged at the top of the installation cylinder. The air guide hopper is fixed to the inside of the installation cylinder. The film lifter is installed at the left end of the top of the installation cylinder.

[0009] Preferably, the film lifter includes a fixed pipe, a limiting block, a telescopic spring, and a movable pin. The fixed pipe is connected to the left end of the top of the installation cylinder. The limiting block is fixed to the inside of the fixed pipe. The telescopic spring is connected to the top of the movable pin. The telescopic spring is fixed to the inside of the fixed pipe. The movable pin is slidably connected to the inside of the fixed pipe. The movable pin is movably matched with the bottom of the limiting block.

[0010] Preferably, the electric push rod and the push air plug are arranged horizontally in the installation cylinder.

[0011] Preferably, the push air plug is integrally in a frustum shape, and the size of the push air plug is the same as the size of the inside of the installation cylinder.

[0012] Preferably, the limiting blocks are symmetrically arranged inside the fixed pipe.

[0013] Preferably, the telescopic spring and the movable pin are vertically arranged in the fixed pipe.

[0014] Preferably, the bottom of the fixed pipe is in a hollow structure.

[0015] Preferably, the top of the fixed pipe is a circular sliding hole.

[0016] (III) Beneficial effects

[0017] The present utility model provides a plastic mold for an earphone rear plug. It has the following beneficial effects: By setting a demolding device, when the electric push rod is started to push the air pushing plug to move telescopically inside the installation cylinder, the air guide pipe can introduce gas into the inside of the installation cylinder, and then the air guide funnel introduces the gas into the inside of the film lifting device. By setting the film lifting device to move in cooperation with the gas change in the installation cylinder, the film lifting device appropriately ejects the product mold, preventing the product mold from sticking above the lower mold, thereby achieving the work of assisting the product mold to complete demolding through the demolding device, and further solving the problem that in traditional equipment, the method of auxiliary demolding on the outside is used for auxiliary demolding, and the mold has defects due to being sticky because it is not completely cooled.

[0018] The present utility model provides a plastic mold for an earphone rear plug. It has the following beneficial effects: By setting a film lifting device, when gas flows into the fixed pipe, the air pressure pushes the movable pin to perform telescopic movement with the assistance of the telescopic spring, prompting the movable pin to lift the product mold of the lower mold. During this process, the limiting block can play a damping role on the movable pin, thereby achieving the effect of setting the film lifting device to move in cooperation with the gas change in the installation cylinder, so that the film lifting device appropriately ejects the product mold and prevents the product mold from sticking above the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a planar structural schematic diagram of the present utility model;

[0021] Figure 3 is a planar structural schematic diagram of the demolding device in the present utility model;

[0022] Figure 4 is an internal structural schematic diagram of the demolding device in the present utility model;

[0023] Figure 5 is a structural schematic diagram of the film lifting device in the present utility model.

[0024] In the figure: fixed bracket - 1, transmission push cylinder - 2, upper mold - 3, injection hose - 4, lower mold - 5, demolding device - 6, installation cylinder - 61, electric push rod - 62, air guide pipe - 63, air pushing plug - 64, air guide funnel - 65, film lifting device - 66, fixed pipe - 661, limiting block - 662, telescopic spring - 663, movable pin - 664. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1 - Figure 2 , the present invention provides a technical solution for a plastic mold for an earphone rear plug: a plastic mold for an earphone rear plug, including a fixed bracket 1, a transmission push cylinder 2, an upper mold 3, a glue injection hose 4, a lower mold 5, and a demolding device 6. The transmission push cylinder 2 is installed at the top of the fixed bracket 1, and the transmission push cylinder 2 is drivingly connected to the top of the upper mold 3. The upper mold 3 is movably matched with the top of the lower mold 5. The glue injection hose 4 is connected to the right end of the lower mold 5, and the lower mold 5 is connected to the lower end of the fixed bracket 1. The demolding device 6 is installed on the fixed bracket 1, and the demolding device 6 is slidably matched with the bottom of the lower mold 5.

[0027] Please refer to Figure 3 - Figure 4 , the present invention provides a technical solution for a plastic mold for an earphone rear plug: the demolding device 6 of a plastic mold for an earphone rear plug includes an installation cylinder 61, an electric push rod 62, an air guide pipe 63, a push air plug 64, an air guide funnel 65, and a film lifter 66. The installation cylinder 61 is fixed to the bottom of the fixed bracket 1, the electric push rod 62 is fixed to the right end of the installation cylinder 61, the electric push rod 62 is drivingly connected to the right end of the push air plug 64, the push air plug 64 is slidably connected to the inside of the installation cylinder 61, the air guide pipe 63 is arranged at the top of the installation cylinder 61, the air guide funnel 65 is fixed to the inside of the installation cylinder 61, the film lifter 66 is installed at the left end of the top of the installation cylinder 61, the electric push rod 62 and the push air plug 64 are arranged horizontally in the installation cylinder 61, the push air plug 64 is integrally in a frustum shape, and the size of the push air plug 64 is the same as the size of the inside of the installation cylinder 61.

[0028] Please refer to Figure 5, the present utility model provides a technical solution for a plastic mold for an earphone rear plug: a plastic mold for an earphone rear plug, the film lifter 66 includes a fixed tube 661, a limiting block 662, a telescopic spring 663, and a movable pin 664. The fixed tube 661 is connected to the top left end of the mounting cylinder 61. The limiting block 662 is fixed inside the fixed tube 661. The telescopic spring 663 is connected to the top of the movable pin 664. The telescopic spring 663 is fixed inside the fixed tube 661. The movable pin 664 is slidably connected to the inside of the fixed tube. The movable pin 664 is movably engaged with the bottom of the limiting block 662. The limiting blocks 662 are symmetrically arranged inside the fixed tube 661. The telescopic spring 663 and the movable pin 664 are vertically arranged inside the fixed tube 661. The bottom of the fixed tube 661 is a hollow structure, and the top of the fixed tube 661 is a circular sliding hole.

[0029] When in use, place the fixed bracket 1 horizontally on the workbench so that the device is supported. Start the driving push cylinder 2 to push the upper mold 3 to move, so that the upper mold 3 can extrude the plastic liquid inside the lower mold 5. At the same time, connect one end of the injection hose 4 to the liquid supply device, so that the injection hose 4 can introduce the plastic liquid into the inside of the lower mold 5, prompting the plastic liquid inside the lower mold 5 to form a product under the stamping pressure.

[0030] Start the electric push rod 62 to push the air push plug 64 to move telescopically inside the mounting cylinder 61, so that the air guide tube 63 can introduce gas into the inside of the mounting cylinder 61, and then the air guide funnel 65 introduces the gas into the inside of the film lifter 66.

[0031] When the gas flows into the inside of the fixed tube 661, the air pressure pushes the movable pin 664 to perform telescopic movement with the assistance of the telescopic spring 663, prompting the movable pin 664 to lift the product mold of the lower mold 5. During this process, the limiting block 662 can play a damping role on the movable pin 664. Furthermore, by setting the film lifter 66 to move in cooperation with the gas change in the mounting cylinder 61, the film lifter 66 appropriately ejects the product mold, preventing the product mold from sticking above the lower mold 5, thereby achieving the work of assisting the product mold to complete demolding through the demolding device 6, and thus solving the problem that in traditional equipment, the outer side auxiliary demolding method is used for auxiliary demolding, and the mold has defects due to being sticky when not fully cooled.

[0032] The control method of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art, and the present utility model is mainly used to protect mechanical devices, so the control method and wiring layout of the present utility model will not be explained in detail.

[0033] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The provision of power also belongs to the common general knowledge in the art. Moreover, the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and circuit connection of the present utility model will not be explained in detail.

[0034] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic mold for the earphone plug, characterized in that: It includes a fixed bracket (1), a transmission push cylinder (2), an upper mold (3), a glue injection hose (4), a lower mold (5), and a demolding device (6). The transmission push cylinder (2) is installed at the top of the fixed bracket (1), and the transmission push cylinder (2) is in transmission connection with the top of the upper mold (3). The upper mold (3) is movably fitted with the top of the lower mold (5). The glue injection hose (4) is connected to the right end of the lower mold (5), and the lower mold (5) is connected to the lower end of the fixed bracket (1). The demolding device (6) is installed on the fixed bracket (1), and the demolding device (6) is slidably fitted with the bottom of the lower mold (5). It is characterized in that: the demolding device (6) includes an installation cylinder (61), an electric push rod (62), an air guide pipe (63), a push air plug (64), an air guide hopper (65), and a film lifter (66). The installation cylinder (61) is fixed to the bottom of the fixed bracket (1). The electric push rod (62) is fixed to the right end of the installation cylinder (61). The electric push rod (62) is in transmission connection with the right end of the push air plug (64). The push air plug (64) is slidably connected to the inside of the installation cylinder (61). The air guide pipe (63) is arranged at the top of the installation cylinder (61). The air guide hopper (65) is fixed to the inside of the installation cylinder (61). The film lifter (66) is installed at the left end of the top of the installation cylinder (61).

2. The plastic mold for the earphone rear plug according to claim 1, wherein: The film lifter (66) includes a fixed pipe (661), a limiting block (662), a telescopic spring (663), and a movable pin (664). The fixed pipe (661) is connected to the left end of the top of the installation cylinder (61). The limiting block (662) is fixed to the inside of the fixed pipe (661). The telescopic spring (663) is connected to the top of the movable pin (664). The telescopic spring (663) is fixed to the inside of the fixed pipe (661). The movable pin (664) is slidably connected to the inside of the fixed pipe (661). The movable pin (664) is movably fitted with the bottom of the limiting block (662).

3. A plastic mold for an earphone rear plug according to claim 1, characterized in that: The electric push rod (62) and the push air plug (64) are arranged horizontally in the installation cylinder (61).

4. A plastic mold for an earphone rear plug according to claim 1, characterized in that: The push air plug (64) is integrally in a frustum shape, and the size of the push air plug (64) is the same as the size of the inside of the installation cylinder (61).

5. A plastic mold for an earphone rear plug according to claim 2, characterized in that: The limiting blocks (662) are symmetrically arranged inside the fixed pipe (661).

6. The plastic mold for the earphone rear plug according to claim 2, characterized in that: The telescopic spring (663) and the movable pin (664) are vertically arranged in the fixed pipe (661).

7. The plastic mold for the earphone rear plug according to claim 2, characterized in that: The bottom of the fixed pipe (661) is a hollow structure.

8. A plastic mold for an earphone rear plug according to claim 2, characterized in that: The top of the fixed pipe (661) is a circular sliding hole.

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