Rapid mold stripping device and method for processing sound box plastic shell

Abstract

The invention belongs to the technical field of plastic part mold stripping, and particularly relates to a rapid mold stripping device and method for audio plastic shell machining. The rapid mold stripping device comprises a machine body, a fixed mold is arranged on the upper side of the machine body, supporting rods are arranged at the four corners of the upper side of the machine body, a mounting plate is jointly assembled at the upper ends of the four supporting rods, and a material extruding mechanism communicating with the fixed mold is arranged on the upper side of the mounting plate; an electric telescopic rod connected with the movable mold is arranged on the upper side of the mounting plate; a groove is formed in the upper side of the fixed mold; a connecting groove is formed in one side of the groove; a rotating part is hinged to the connecting groove; a connecting rod extending out of the cavity is arranged on the upper side of the sliding plate, a C-shaped frame is arranged on the upper side of the connecting rod and provided with a top wheel matched with the overturning plate, and the lower side of the cavity communicates with a driving mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic part demoulding, and in particular relates to a rapid demoulding device and method for processing an acoustic plastic shell. Background Art

[0002] The audio injection molding machine is an injection molding device specially used to produce audio housing and other parts. Its working principle is to heat the plastic material to a molten state, then inject it into the mold under high pressure, and form the desired product after cooling. This equipment is widely used in audio manufacturing, mainly used to produce audio housings, buttons, interfaces and other plastic parts, which affect the appearance, durability and user experience of the audio. When purchasing, key factors such as injection molding accuracy, production efficiency, stability and reliability, and after-sales service need to be considered to ensure that the audio parts produced are of high quality;

[0003] The small shell injection molding machine is set up with a movable mold and a fixed film up and down. After the movable mold moves downward and engages with the fixed film, the molten plastic solution is injected into the molding cavity, and then cooled and molded. The molded shell will remain in the molding cavity of the fixed film and can only be taken out manually by the staff, which is inconvenient. Summary of the invention

[0004] The purpose of the present invention is to provide a rapid demoulding device and method for processing a plastic housing of an audio system, so as to solve the problems existing in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A rapid demoulding device and method for processing an acoustic plastic shell, comprising a body, a fixed mold being provided on the upper side of the body, support rods being provided at four corners of the upper side of the body, a mounting plate being commonly assembled on the upper ends of the four support rods, an extrusion mechanism being provided on the upper side of the mounting plate being connected to the fixed mold, a movable mold being driven and assembled on the lower side of the mounting plate, an electric telescopic rod being provided on the upper side of the mounting plate being connected to the movable mold, a groove being provided on the upper side of the fixed mold, a connecting groove being provided on one side of the groove, a rotating member being hingedly assembled on the connecting groove, a flip plate being connected to the rotating member, a molding groove being provided on the upper side of the flip plate, a cavity being provided on the inner wall of the lower side of the groove, a slide plate being assembled in the sliding seal in the cavity, a connecting rod extending out of the cavity being provided on the upper side of the slide plate, a C-shaped frame being provided on the upper side of the connecting rod, a top wheel matching the flip plate being assembled on the lower side of the cavity, and a driving mechanism being connected to the lower side of the cavity.

[0007] The driving mechanism includes a sleeve arranged on the upper side of the mounting plate, a slider is slidingly sealed in the sleeve, a spring is arranged on the upper side of the slider, a push rod extending out of the sleeve is arranged on the lower side of the slider, the lower end of the push rod passes through the mounting plate and matches with the movable mold, the sleeve is filled with hydraulic oil located on the upper side of the slider, the upper side of the sleeve is connected with a connecting pipe, and the other end of the connecting pipe is connected to the lower side of the cavity.

[0008] A step is provided on the upper side of the groove, and a limiting strip is provided on the side of the flip plate.

[0009] A blocking bar is arranged on the lower side of the C-shaped frame.

[0010] A fixing piece is arranged on one side of the machine body close to the connecting groove, a material guide plate matching with the turning plate is arranged on the upper side of the fixing piece, and baffle plates are arranged on both sides of the material guide plate.

[0011] A storage box is provided on the front side of the machine body.

[0012] A rapid demoulding device for processing a plastic housing of an acoustic instrument also includes a demoulding method, wherein the demoulding method includes the following steps:

[0013] Step 1: Start the injection molding machine, inject the plastic raw material from the nozzle of the mold into the mold cavity, that is, the molding groove formed between the fixed mold and the movable mold, through heating and pressurization, and wait for the plastic solution to cool and solidify to form the plastic shell of the speaker;

[0014] Step 2: The electric telescopic rod begins to shrink, driving the movable mold to move away from the fixed mold until the movable mold and the fixed mold are completely separated;

[0015] Step 3: The movable mold continues to move upward until it contacts the driving mechanism on the mounting plate. The driving mechanism starts to work, injects pressure into the bottom of the cavity, and pushes the slide plate upward;

[0016] Step 4: The slide plate drives the C-shaped frame to move upward through the connecting rod. The top wheel installed on the C-shaped frame contacts the back of the flip plate when moving upward, and pushes the flip plate to rotate upward. The flip plate is hinged to the connecting groove through the rotating member, so it can be flipped smoothly;

[0017] Step 5: When the flip plate flips to the extreme position, the molded plastic part in the molding groove is ejected;

[0018] Step 6: When the movable mold moves downward again, the connection with the driving mechanism is cancelled, and the driving mechanism works in the reverse direction to withdraw the pressure injected into the cavity. The slide plate moves downward under the action of negative pressure, and the slide plate drives the C-shaped frame and the top wheel to move downward through the connecting rod. The top wheel gradually cancels the top pressure on the flip plate, and the flip plate begins to reset.

[0019] Compared with the prior art, the present invention has the following technical advantages:

[0020] 1. Through the cooperation of electric telescopic rod and hydraulic drive mechanism, the rapid opening and closing of mold and demolding are realized, which significantly shortens the production cycle and improves the overall production efficiency.

[0021] 2. The device integrates electric drive, hydraulic transmission and mechanical structure to realize the automated injection and demolding process, reduce manual operation and labor intensity.

[0022] 3. The device has a clear structure and modular design, which makes maintenance simple and convenient, reducing maintenance costs.

[0023] 4. The design of the rapid demoulding mechanism enables the plastic parts to be ejected from the mold quickly, reducing the waiting time and avoiding the material waste and deformation problems caused by long-term stay in the mold.

[0024] 5. The automated operation process reduces the chance of manual contact with high-temperature plastic solutions, reduces the risk of work-related injuries, and enhances the safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 The cross-sectional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 4 The cross-sectional structure of the present invention is shown in FIG. Figure 2 .

[0030] The main component symbols are described as follows:

[0031] Machine body 1, fixed mold 11, support rod 12, mounting plate 13, extrusion mechanism 14, movable mold 15, electric telescopic rod 151, groove 2, connecting groove 21, rotating part 22, flip plate 23, forming groove 24, cavity 25, slide plate 26, connecting rod 27, C-shaped frame 28, top wheel 29, sleeve 3, slider 31, spring 32, ejector rod 33, connecting pipe 34, step 35, limit strip 36, baffle strip 37, fixing part 4, guide plate 41, baffle plate 42, storage box 43. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] like Figure 1-4 As shown, a rapid demoulding device and method for processing a plastic shell of an audio system of the present invention comprises a body 1, a fixed mold 11 is arranged on the upper side of the body 1, support rods 12 are arranged at four corners of the upper side of the body 1, a mounting plate 13 is commonly mounted on the upper ends of the four support rods 12, an extrusion mechanism 14 connected to the fixed mold 11 is arranged on the upper side of the mounting plate 13, a movable mold 15 is driven and mounted on the lower side of the mounting plate 13, an electric telescopic rod 151 connected to the movable mold 15 is arranged on the upper side of the mounting plate 13, and a groove 2 is arranged on the upper side of the fixed mold 11. A connecting groove 21 is provided on one side of the groove 2, and a rotating part 22 is hingedly assembled on the connecting groove 21. The rotating part 22 is connected to a flip plate 23. A molding groove 24 is provided on the upper side of the flip plate 23. A cavity 25 is provided on the inner wall of the lower side of the groove 2. A slide plate 26 is slidingly and sealably assembled in the cavity 25. A connecting rod 27 extending out of the cavity 25 is provided on the upper side of the slide plate 26. A C-shaped frame 28 is provided on the upper side of the connecting rod 27. The C-shaped frame 28 is equipped with a top wheel 29 matching the flip plate 23. The lower side of the cavity 25 is connected to a driving mechanism.

[0034] When the audio plastic shell needs to be processed, the electric telescopic rod 151 starts to stretch, driving the movable mold 15 to move downward until the movable mold 15 is completely engaged with the fixed film 11. At this time, the extrusion mechanism 14 on the upper side of the mounting plate 13 injects a high-temperature plastic solution into the molding groove 24 between the movable mold 15 and the fixed film 11. When the high-temperature plastic solution is cooled, it is formed into an audio plastic shell;

[0035] After the shell is formed, the electric telescopic rod 151 begins to shrink, driving the movable mold 15 to move away from the fixed film 11. After the movable mold 15 is completely separated from the fixed film 11, the movable mold 15 continues to move upward until the fixed film 15 moves upward and contacts the driving mechanism provided on the mounting plate 13, driving the driving mechanism to start working, and the driving mechanism begins to inject pressure into the bottom of the cavity 25, thereby increasing the pressure in the cavity 25 and driving the slide plate 26 to move upward. The slide plate 26 drives the C-shaped frame 28 to move upward through the connecting rod 27. Since the top wheel 29 assembled on the C-shaped frame 28 contacts the back side of the flip plate 23 when moving upward, and since the flip plate 23 is hinged to the connecting groove 21 through the rotating member 22, the rotating member 22 drives the flip plate 23 to rotate upward until the flip plate 23 flips to the limit, and the molded plastic part in the molding groove 24 is ejected, thereby achieving the purpose of rapid demoulding and unloading.

[0036] When the movable mold 15 moves downward again, the movable mold 15 is disconnected from the driving mechanism, and the driving mechanism works in the reverse direction to withdraw the pressure injected into the cavity 25. Under the action of negative pressure, the slide plate 26 is driven to move downward in the cavity 25. The slide plate 26 drives the C-shaped frame 28 and the top wheel 29 to move downward through the connecting rod 27. Therefore, the top wheel 29 gradually cancels the top pressure on the flip plate 23, and the flip plate 23 gradually flips downward until the flip plate 26 is restored to the groove 2.

[0037] The driving mechanism includes a sleeve 3 arranged on the upper side of the mounting plate 13, a slider 31 is slidingly sealed in the sleeve 3, a spring 32 is arranged on the upper side of the slider 31, a push rod 33 extending out of the sleeve 3 is arranged on the lower side of the slider 31, the lower end of the push rod 33 passes through the mounting plate 13 and matches with the movable mold 15, the sleeve 3 is filled with hydraulic oil located on the upper side of the slider 31, the upper side of the sleeve 3 is connected with a connecting pipe 34, and the other end of the connecting pipe 34 is connected to the lower side of the cavity 25.

[0038] When the movable mold 15 moves upward and contacts the ejector pin 33, the movable mold 15 continues to move upward, and the movable mold 15 gradually squeezes the ejector pin 33 to move upward, and the ejector pin 33 drives the slider 31 to move upward in the sleeve 3, and the hydraulic oil on the upper side of the sleeve 3 is injected into the cavity 25 through the connecting pipe 34, thereby increasing the pressure in the cavity 25. At the same time, the spring 32 begins to compress. When the movable mold 15 moves downward and gradually cancels the contact with the ejector pin 33, the slider 31 begins to reset and move downward under the action of the extension of the spring 32, and the hydraulic oil injected into the cavity 25 is drawn back into the sleeve 3, thereby reducing the pressure in the cavity 25.

[0039] A step 35 is provided on the upper side of the groove 2, and a limiting strip 36 is provided on the side of the flip plate 23. When the flip plate 23 falls into the groove 2, the limiting strip 36 falls on the step 35, which can limit the flip plate 23 and maintain the flatness of the flip plate 23 and the upper surface of the fixed film 11.

[0040] The lower side of the C-shaped frame 28 is provided with a stop bar 37. The design of the stop bar 37 can limit the lowering limit position of the connecting rod 27.

[0041] A fixing member 4 is provided on one side of the machine body 1 near the connecting groove 21, and a guide plate 41 matching the flip plate 23 is provided on the upper side of the fixing member 4, and baffles 42 are provided on both sides of the guide plate 41. When the flip plate 23 drives the plastic part to flip quickly, and when it flips to the limit, the plastic part moves out of the molding groove 24 under the action of inertia and falls onto the guide plate 41, and moves to the collection device following the inclination of the guide plate 41.

[0042] A storage box 43 is provided at the front side of the machine body 1. The design of the storage box 43 is convenient for the staff to store daily maintenance tools.

[0043] A rapid demoulding device for processing a plastic housing of an audio system, further comprising a demoulding method, wherein the demoulding method comprises the following steps:

[0044] Step 1: Start the injection molding machine, inject the plastic raw material from the nozzle of the mold into the mold cavity, that is, the molding groove 24 formed between the fixed mold 11 and the movable mold 15, through heating and pressurization, and wait for the plastic solution to cool and solidify to form a plastic shell of the speaker;

[0045] Step 2: The electric telescopic rod 151 begins to contract, driving the movable mold 15 to move away from the fixed mold 11 until the movable mold 15 is completely separated from the fixed mold 11;

[0046] Step 3: The movable mold 15 continues to move upward until it contacts the driving mechanism provided on the mounting plate 13. The driving mechanism starts to work, injects pressure into the bottom of the cavity 25, and pushes the slide plate 26 to move upward;

[0047] Step 4: The slide plate 26 drives the C-shaped frame 28 to move upward through the connecting rod 27. The top wheel 29 mounted on the C-shaped frame 28 contacts the back of the flip plate 23 when moving upward, and pushes the flip plate 23 to rotate upward. The flip plate 23 is hinged to the connecting groove 21 through the rotating member 22, so it can be flipped smoothly.

[0048] Step 5: When the flip plate 23 flips to the extreme position, the molded plastic part in the molding groove 24 is ejected;

[0049] Step 6: When the movable mold 15 moves downward again, the connection with the driving mechanism is cancelled, and the driving mechanism works in reverse to withdraw the pressure injected into the cavity 25. The slide plate 26 moves downward under the action of negative pressure. The slide plate 26 drives the C-shaped frame 28 and the top wheel 29 to move downward through the connecting rod 27. The top wheel 29 gradually cancels the top pressure on the flip plate 23, and the flip plate 23 begins to reset.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A rapid demoulding device for processing a plastic shell of an audio system, comprising a machine body, a fixed mold is arranged on the upper side of the machine body, support rods are arranged at the four corners of the upper side of the machine body, a mounting plate is mounted on the upper ends of the four support rods, an extrusion mechanism connected to the fixed mold is arranged on the upper side of the mounting plate, a movable mold is driven and mounted on the lower side of the mounting plate, and an electric telescopic rod connected to the movable mold is arranged on the upper side of the mounting plate, characterized in that: A groove is provided on the upper side of the fixed mold, a connecting groove is provided on one side of the groove, a rotating part is hingedly installed in the connecting groove, the rotating part is connected to a flip plate, a molding groove is provided on the upper side of the flip plate, a cavity is provided on the inner wall of the lower side of the groove, a slide plate is provided with a sliding seal in the cavity, a connecting rod extending out of the cavity is provided on the upper side of the slide plate, a C-shaped frame is provided on the upper side of the connecting rod, the C-shaped frame is equipped with a top wheel matching the flip plate, and a driving mechanism is connected to the lower side of the cavity.

2. The rapid demoulding device for processing a plastic housing of an audio system according to claim 1, characterized in that: The driving mechanism includes a sleeve arranged on the upper side of the mounting plate, a slider is slidingly sealed in the sleeve, a spring is arranged on the upper side of the slider, a push rod extending out of the sleeve is arranged on the lower side of the slider, the lower end of the push rod passes through the mounting plate and matches with the movable mold, the sleeve is filled with hydraulic oil located on the upper side of the slider, the upper side of the sleeve is connected with a connecting pipe, and the other end of the connecting pipe is connected to the lower side of the cavity.

3. The rapid demoulding device for processing a plastic housing of an audio system according to claim 1, characterized in that: A step is provided on the upper side of the groove, and a limiting strip is provided on the side of the flip plate.

4. The rapid demoulding device for processing a plastic housing of an audio system according to claim 1, characterized in that: A blocking bar is arranged on the lower side of the C-shaped frame.

5. The rapid demoulding device for processing a plastic housing of an acoustic instrument according to claim 1, characterized in that: A fixing piece is arranged on one side of the machine body close to the connecting groove, a material guide plate matching with the turning plate is arranged on the upper side of the fixing piece, and baffle plates are arranged on both sides of the material guide plate.

6. The rapid demoulding device for processing a plastic housing of an audio system according to claim 1, characterized in that: A storage box is provided on the front side of the machine body.

7. A rapid demoulding device for processing a plastic housing of an acoustic instrument according to any one of claims 1 to 6, further comprising a demoulding method, characterized in that: The demoulding method comprises the following steps: Step 1: Start the injection molding machine, inject the plastic raw material from the nozzle of the mold into the mold cavity, that is, the molding groove formed between the fixed mold and the movable mold, through heating and pressurization, and wait for the plastic solution to cool and solidify to form the plastic shell of the speaker; Step 2: The electric telescopic rod begins to shrink, driving the movable mold to move away from the fixed mold until the movable mold and the fixed mold are completely separated; Step 3: The movable mold continues to move upward until it contacts the driving mechanism on the mounting plate. The driving mechanism starts to work, injects pressure into the bottom of the cavity, and pushes the slide plate upward; Step 4: The slide plate drives the C-shaped frame to move upward through the connecting rod. The top wheel installed on the C-shaped frame contacts the back of the flip plate when moving upward, and pushes the flip plate to rotate upward. The flip plate is hinged to the connecting groove through the rotating member, so it can be flipped smoothly; Step 5: When the flip plate flips to the extreme position, the molded plastic part in the molding groove is ejected; Step 6: When the movable mold moves downward again, the connection with the driving mechanism is cancelled, and the driving mechanism works in the reverse direction to withdraw the pressure injected into the cavity. The slide plate moves downward under the action of negative pressure, and the slide plate drives the C-shaped frame and the top wheel to move downward through the connecting rod. The top wheel gradually cancels the top pressure on the flip plate, and the flip plate begins to reset.

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