Rapid demolding structure for injection molding of plastic sound equipment keycap

Abstract

The utility model discloses a quick demoulding structure for injection molding of plastic sound equipment keycaps, which belongs to the technical field of quick demoulding structures for injection molding of plastic sound equipment keycaps, and is characterized by comprising a demoulding assembly, the top of the demoulding assembly is fixedly connected with an injection molding machine body, and the bottom of the demoulding assembly is fixedly connected with a support frame; a placing plate is arranged at the top of the supporting frame, and the problems that in the demolding process of an existing injection molding machine, most plastic sound equipment keycaps subjected to injection molding are manually taken out by a user, in the manual taking-out process, the hands of the user may touch a demolding agent, and in the process of taking out the plastic sound equipment keycaps subjected to injection molding, the hands of the user cannot touch the demolding agent can be solved. The problems that in the injection molding process of a plurality of plastic sound equipment keycaps, hands can move at the bottom of an upper mold, so that certain danger exists, and in the simultaneous injection molding process of a plurality of plastic sound equipment keycaps, a release agent is inconvenient to spray to a plurality of positions, and the quality difference of products in the same batch is influenced are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of quick demolding structure for injection molding of plastic speaker keycaps, and in particular to a quick demolding structure for injection molding of plastic speaker keycaps. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. Injection molding machines are divided into vertical, horizontal, and all-electric types. Injection molding machines heat plastics and apply high pressure to molten plastics, causing them to be injected and fill the mold cavity. All-electric injection molding machines are suitable for CNC applications and applications requiring high positioning accuracy.

[0003] In existing injection molds, after injection molding, the upper and lower molds need to maintain high pressure during the molding process. Therefore, the upper and lower molds are pressed tightly against the injection molded product under high pressure. Sometimes, the injection molded product may stick to the mold. In this case, we spray a layer of release fluid onto the mold before injection molding to prevent the injection molded product from sticking to the mold. However, currently, most of the time, the release fluid is sprayed onto the mold manually, which makes the whole process very troublesome and has certain dangers. Therefore, this utility model provides an injection molding machine demolding device.

[0004] Existing patent (publication number: CN220763247U) discloses a demolding device for an injection molding machine, including a supporting base plate. A liquid storage tank is fixedly installed on the top of the supporting base plate, and a sealing component is installed on the top of the liquid storage tank. A connecting pipe is fixedly installed on the left side of the liquid storage tank, and a delivery pump is fixedly installed at the left end of the connecting pipe. The delivery pump is fixedly connected to the supporting base plate. An outlet pipe is fixedly installed on the left side of the delivery pump, and a diverter pipe is fixedly installed at the left end of the outlet pipe. When the delivery pump is started, the demolding liquid inside the liquid storage tank is drawn into the delivery pump through the connecting pipe, and then flows from the outlet pipe into the diverter pipe. Subsequently, it is sprayed out from the nozzle, spraying the demolding liquid onto the surfaces of the upper and lower molds. After spraying, the diverter pipe and the nozzle are moved back to their original positions by a drive component. This achieves the goal of automatically spraying the demolding liquid onto the mold, avoiding the need for manual spraying of the demolding liquid onto the mold.

[0005] To address the aforementioned issues, existing patents offer solutions. In most existing injection molding machines, the molded plastic speaker keycaps are manually removed by the user during the demolding process. During this manual removal, the user's hands may come into contact with the release agent, and the hands may move at the bottom of the upper mold, posing a certain degree of danger. Furthermore, when multiple plastic speaker keycaps are being molded simultaneously, it is not convenient to spray the release agent on multiple locations, which can affect the quality variation of the same batch of products.

[0006] To address this, a rapid demolding structure for injection molding of plastic speaker keycaps is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a quick demolding structure for injection molding of plastic speaker keycaps. This structure solves the problem that in existing injection molding machines, the demolding process mostly involves the user manually removing the molded plastic speaker keycaps. During manual removal, the user's hands may come into contact with the release agent, and the hands may move at the bottom of the upper mold, posing a certain safety hazard. Furthermore, when simultaneously injection molding multiple plastic speaker keycaps, it is not convenient to spray the release agent on multiple locations, which can affect the quality variation of the same batch of products.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick demolding structure for injection molding of plastic speaker keycaps, including a demolding component, an injection molding machine body fixedly connected to the top of the demolding component, a support frame fixedly connected to the bottom of the demolding component, a placement plate provided on the top of the support frame, an upper mold and a lower mold respectively snapped onto the side of the placement plate opposite to the injection molding machine body, and a hole provided on the top of the support frame;

[0009] The demolding assembly includes a protective cover, a hollow plate bolted to the rear side of the protective cover, a fan body fixedly connected to the right side of the hollow plate, two connecting pipes connected to the front side of the hollow plate, and air outlets opened on opposite sides of the two connecting pipes. A vacuum machine body is fixedly connected to the top of the protective cover, an electric telescopic rod body is fixedly connected to the top of the protective cover, a suction plate is bolted to the bottom of the electric telescopic rod body, and a flexible hose for use with the vacuum machine body is connected to the top of the suction plate.

[0010] Preferably, a limiting block is fixedly connected to the bottom of the support frame, an alignment block is engaged inside the limiting block, a collection box is fixedly connected to the front side of the alignment block, and a caster wheel is fixedly connected to the bottom of the collection box.

[0011] Preferably, the top of the collection box has an installation slot, and a frame is snapped into the inside of the installation slot. Two protective plates are provided inside the frame, and torsion springs are fixedly connected to the front and rear sides of the two protective plates.

[0012] Preferably, an adjustment handle is fixedly connected to the front side of the collection box, and the adjustment handle is made of stainless steel.

[0013] Preferably, the top of the support frame is provided with an adjustment groove, the inside of the support frame is fixedly connected to a servo motor body, the front side of the servo motor body is fixedly connected to a threaded rod, and the surface of the threaded rod is threadedly connected to an adjustment block that cooperates with the adjustment groove.

[0014] Preferably, the adjusting block is bolted to the bottom of the placement plate, and the placement plate is made of stainless steel.

[0015] Preferably, two fixing blocks are fixedly connected to the rear side of the injection molding machine body, and a first baffle plate is snapped onto the opposite side of the two fixing blocks.

[0016] Preferably, a U-shaped frame is fixedly connected to the rear side of the placement board, and a second baffle plate is snapped into the inside of the U-shaped frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this application, the fan body in the demolding assembly works in conjunction with the hollow plate, connecting pipe, and air outlet to effectively cool the injection-molded plastic speaker keycaps. The fan body guides air into the hollow plate, and the air is blown out through the connecting pipe and air outlet, directly acting on the keycap surface. This forced convection heat transfer method can quickly remove the heat accumulated in the keycaps during the injection molding process. For example, after injection molding, the keycap temperature is high; the airflow from the fan can rapidly lower the keycap temperature, significantly shortening the cooling time compared to natural cooling and improving production efficiency. For companies that mass-produce plastic speaker keycaps, rapid cooling can reduce the time of each injection molding cycle. To produce more products per unit time, traditional demolding methods may require manual removal of the injection-molded keycaps. During this process, workers' hands are prone to contact with the release agent, and there is a certain degree of danger in moving at the bottom of the mold. However, the combination of the electric telescopic rod, vacuum machine, suction plate, and hose in the demolding assembly enables automated demolding. The electric telescopic rod can precisely adjust the height of the suction plate so that it can accurately approach the keycap. The vacuum machine uses the hose to generate suction on the suction plate, thereby adsorbing the keycap. The entire process does not require manual direct contact with the keycap and the bottom of the mold, effectively avoiding the danger of workers' hands contacting the release agent and operating at the bottom of the mold, and ensuring the personal safety of operators.

[0019] 2. In this application, two protective plates are installed in the frame within the mounting slot at the top of the collection box. Torsion springs are connected to the front and rear sides of the protective plates. When the demolded plastic speaker keycaps fall from above into the collection box, they first contact the protective plates. Supported by the torsion springs, the protective plates act as a buffer, reducing damage caused by the keycaps directly impacting the bottom of the collection box or other hard objects. For example, for some plastic speaker keycaps with high surface quality requirements and relatively brittle materials, the buffering effect of the protective plates effectively prevents scratches, bumps, and deformation on the keycap surface, ensuring the product's appearance quality and integrity, and reducing product damage. The reduced scrap rate improves production efficiency. The protective plate not only cushions the impact but also ensures that the keycaps are more orderly distributed within the collection box. Due to the blocking and guiding effect of the protective plate, the keycaps do not scatter during the fall but gradually accumulate in the collection box. This makes the keycaps in the collection box easier to manage and retrieve, facilitating subsequent packaging, inspection, and other processes. For example, in large-scale production, the orderly collection of keycaps allows for convenient batch packaging, improving packaging efficiency. In the inspection process, the orderly arrangement also facilitates quick quality checks of the keycaps, reducing inspection time and workload. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the quick demolding structure for the injection molding of plastic speaker keycaps according to this utility model.

[0021] Figure 2 This is a cross-sectional schematic diagram of the demolding component of this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled components of this utility model;

[0023] Figure 4 This is a cross-sectional view of the placement board of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a partial component of this utility model.

[0025] In the diagram, 1. Demolding assembly; 101. Protective cover; 102. Hollow plate; 103. Fan body; 104. Connecting pipe; 105. Air outlet; 106. Vacuum machine body; 107. Electric telescopic rod body; 108. Suction plate; 109. Flexible hose; 2. Injection molding machine body; 3. Support frame; 4. Placement plate; 5. Upper mold; 6. Lower mold; 7. Hole; 8. Limiting block; 9. Alignment block; 10. Collection box; 11. Casters; 12. Mounting slot; 13. Frame; 14. Protective plate; 15. Torsion spring; 16. Adjustment handle; 17. Adjustment slot; 18. Servo motor body; 19. Threaded rod; 20. Adjustment block; 21. Fixing block; 22. First baffle plate; 23. U-shaped frame; 24. Second baffle plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A quick demolding structure for injection molding of plastic speaker keycaps includes a demolding component 1, an injection molding machine body 2 fixedly connected to the top of the demolding component 1, a support frame 3 fixedly connected to the bottom of the demolding component 1, a placement plate 4 provided on the top of the support frame 3, an upper mold 5 and a lower mold 6 respectively snapped onto the side of the placement plate 4 and the side opposite to the injection molding machine body 2, and a hole 7 opened on the top of the support frame 3.

[0029] The demolding assembly 1 includes a protective cover 101. A hollow plate 102 is bolted to the rear side of the protective cover 101. A fan body 103 is fixedly connected to the right side of the hollow plate 102. Two connecting pipes 104 are connected to the front side of the hollow plate 102. Air outlets 105 are opened on the opposite side of the two connecting pipes 104. A vacuum machine body 106 is fixedly connected to the top of the protective cover 101. An electric telescopic rod body 107 is fixedly connected to the top of the protective cover 101. A suction plate 108 is bolted to the bottom of the electric telescopic rod body 107. A flexible hose 109 that works with the vacuum machine body 106 is connected to the top of the suction plate 108.

[0030] In this embodiment: by setting the demolding component 1, the demolding of the injection-molded plastic speaker keycaps can be facilitated. By setting the injection molding machine body 2, the placement plate 4, the upper mold 5, and the lower mold 6, the production of injection-molded plastic speaker keycaps can be achieved. By setting the support frame 3, the demolding component 1 can be supported. By setting the holes 7, it can be used in conjunction with the demolding component 1. By setting the protective cover 101, the hollow plate 102, the fan body 103, the two connecting pipes 104, and the air outlet 105, the hollow plate 102 can be supported by the protective cover 101. Then, by the user operating the fan body 103, the fan body 103 guides air into the interior of the hollow plate 102. Then, through the two... The connecting pipe 104 works in conjunction with the air outlet 105 to cool the injection-molded plastic speaker keycaps. By setting up the electric telescopic rod body 107, the vacuum machine body 106, the suction plate 108, and the hose 109, the user can operate the electric telescopic rod body 107 to adjust the height of the suction plate 108. After adjusting the height of the suction plate 108 to a suitable height, the user can operate the vacuum machine body 106 to work with the hose 109 to adsorb the injection-molded plastic speaker keycaps on the top of the lower mold 6. Then, the user resets the placement plate 4, and after resetting, the user operates the vacuum machine body 106 to make the adsorbed plastic speaker keycaps fall off.

[0031] Specifically, such as Figure 1 , Figure 3 As shown, a limiting block 8 is fixedly connected to the bottom of the support frame 3, an alignment block 9 is snapped into the inside of the limiting block 8, a collection box 10 is fixedly connected to the front side of the alignment block 9, and a caster wheel 11 is fixedly connected to the bottom of the collection box 10.

[0032] Specifically, such as Figure 1 , Figure 3 As shown, the top of the collection box 10 has an installation slot 12, and a frame 13 is snapped into the inside of the installation slot 12. Two protective plates 14 are installed inside the frame 13, and torsion springs 15 are fixedly connected to the front and rear sides of the two protective plates 14.

[0033] Specifically, such as Figure 1 , Figure 3 As shown, an adjustment handle 16 is fixedly connected to the front side of the collection box 10. The adjustment handle 16 is made of stainless steel.

[0034] In this embodiment: by setting a limiting block 8, an alignment block 9, a collection box 10, and a universal wheel 11, the position of the collection box 10 can be moved to a suitable position by the universal wheel 11. Then, the alignment block 9, which is fixedly connected to the rear of the collection box 10, is spliced ​​with the limiting block 8, and the collection box 10 is moved to a suitable position. By setting a mounting groove 12, a frame 13, two protective plates 14, and a torsion spring 15, the collection box 10 can be spliced ​​with the frame 13 by the mounting groove 12. After the splicing is completed, the fallen plastic speaker keycaps first contact the two protective plates 14, and then the torsion springs 15 support the protective plates 14, reducing the problem of the plastic speaker keycaps falling directly into the inside of the collection box 10 and causing damage. By setting an adjustment handle 16, the position of the collection box 10 can be easily adjusted by the user.

[0035] Specifically, such as Figure 1 , Figure 4 As shown, the top of the support frame 3 is provided with an adjustment groove 17, and the servo motor body 18 is fixedly connected inside the support frame 3. A threaded rod 19 is fixedly connected to the front side of the servo motor body 18, and an adjustment block 20 that cooperates with the adjustment groove 17 is threadedly connected to the surface of the threaded rod 19.

[0036] Specifically, such as Figure 4 As shown, the adjusting block 20 is bolted to the bottom of the placement plate 4, which is made of stainless steel.

[0037] In this embodiment, by setting the adjustment groove 17, the servo motor body 18, the threaded rod 19, and the adjustment block 20, the user can control the servo motor body 18 to control the threaded rod 19, and then adjust the adjustment block 20 on the inner wall of the adjustment groove 17. The adjustment block 20 can then be moved and adjusted to adjust the placement position, so that the user can move and adjust the position of the lower mold 6 to a suitable position, so that the suction plate 108 can demold it. In addition, during the movement of the placement plate 4, the injection-molded plastic speaker keycaps can also be cooled.

[0038] Specifically, such as Figure 5 As shown, two fixing blocks 21 are fixedly connected to the rear side of the injection molding machine body 2, and a first baffle plate 22 is snapped onto the opposite side of the two fixing blocks 21.

[0039] Specifically, such as Figure 5 As shown, a U-shaped frame 23 is fixedly connected to the rear side of the placement plate 4, and a second baffle plate 24 is snapped into the inside of the U-shaped frame 23.

[0040] In this embodiment: by setting two fixing blocks 21 and a first baffle plate 22, it is possible to facilitate the splicing of the upper mold 5 and the injection molding machine body 2. By setting a U-shaped frame 23 and a second baffle plate 24, it is possible to facilitate the splicing of the second baffle plate 24 and the placement plate 4, thereby reducing the deviation during injection molding.

[0041] Working principle: After the plastic speaker keycaps are injection molded, the user first controls the fan body 103 to guide air into the hollow plate 102. Then, through two connecting pipes 104 and the air outlet 105, the molded plastic speaker keycaps are cooled. Next, the user controls the servo motor body 18 to control the threaded rod 19, causing the adjusting block 20 to adjust within the adjusting groove 17. This adjusts the position of the placement plate 4. After moving to the appropriate position, the user controls the electric telescopic rod body 107 to adjust the height of the suction plate 108. The height of the suction plate 108 is then adjusted to the desired position. After reaching the appropriate height, the user operates the vacuum machine body 106 to engage with the hose 109 to adsorb the plastic speaker keycaps that have been injection molded on the top of the lower mold 6. Then, the user operates the servo motor body 18 to control the threaded rod 19, adjusting the adjusting block 20 to the appropriate position on the inner wall of the adjusting groove 17. The user then operates the vacuum machine body 106 to cause the adsorbed plastic speaker keycaps to fall through the hole 7. The falling plastic speaker keycaps first contact the two protective plates 14, and are then supported by the torsion spring 15, reducing the risk of damage caused by the plastic speaker keycaps falling directly into the collection box 10.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick demolding structure for injection molding of plastic speaker keycaps, comprising a demolding component (1), characterized in that: The top of the demolding assembly (1) is fixedly connected to the injection molding machine body (2), and the bottom of the demolding assembly (1) is fixedly connected to the support frame (3). The top of the support frame (3) is provided with a placement plate (4). The upper mold (5) and the lower mold (6) are respectively snapped onto the side opposite to the placement plate (4) and the injection molding machine body (2). The top of the support frame (3) is provided with a hole (7). The demolding assembly (1) includes a protective cover (101), a hollow plate (102) is bolted to the rear side of the protective cover (101), a fan body (103) is fixedly connected to the right side of the hollow plate (102), two connecting pipes (104) are connected to the front side of the hollow plate (102), and air outlets (105) are opened on the opposite side of the two connecting pipes (104). A vacuum machine body (106) is fixedly connected to the top of the protective cover (101), an electric telescopic rod body (107) is fixedly connected to the top of the protective cover (101), a suction plate (108) is bolted to the bottom of the electric telescopic rod body (107), and a flexible hose (109) for use with the vacuum machine body (106) is connected to the top of the suction plate (108).

2. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 1, characterized in that: The bottom of the support frame (3) is fixedly connected to a limiting block (8), and an alignment block (9) is snapped into the inside of the limiting block (8). A collection box (10) is fixedly connected to the front side of the alignment block (9), and a caster wheel (11) is fixedly connected to the bottom of the collection box (10).

3. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 2, characterized in that: The top of the collection box (10) is provided with an installation groove (12), and a frame (13) is snapped into the inside of the installation groove (12). Two protective plates (14) are provided inside the frame (13), and torsion springs (15) are fixedly connected to the front and rear sides of the two protective plates (14).

4. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 3, characterized in that: An adjustment handle (16) is fixedly connected to the front side of the collection box (10), and the adjustment handle (16) is made of stainless steel.

5. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 1, characterized in that: The top of the support frame (3) is provided with an adjustment groove (17), and the inside of the support frame (3) is fixedly connected to a servo motor body (18). The front side of the servo motor body (18) is fixedly connected to a threaded rod (19), and the surface of the threaded rod (19) is threadedly connected to an adjustment block (20) that cooperates with the adjustment groove (17).

6. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 5, characterized in that: The adjusting block (20) is bolted to the bottom of the placement plate (4), which is made of stainless steel.

7. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 1, characterized in that: The injection molding machine body (2) has two fixed blocks (21) fixedly connected to its rear side, and a first baffle plate (22) is snapped onto the opposite side of the two fixed blocks (21).

8. The quick demolding structure for injection molding of plastic speaker keycaps according to claim 1, characterized in that: A U-shaped frame (23) is fixedly connected to the rear side of the placement plate (4), and a second baffle plate (24) is snapped into the inside of the U-shaped frame (23).

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