Switch cover injection molding machine
By introducing a servo motor and a spiral blade water-cooling pipe into the injection molding machine, the problem of the injection molding machine being unable to perform injection and cooling simultaneously was solved, achieving efficient material molding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG XIANGJIE ELECTRONICS CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
Existing injection molding machines cannot synchronize injection and cooling operations, resulting in low processing efficiency and poor cooling effect.
An injection molding machine with an open/closed cover was designed, comprising a servo motor, an extrusion mechanism, a cooling mechanism, and a mold base. The servo motor drives the gears to rotate for lateral material transport, and spiral blades and water cooling pipes are used for circulating cooling to achieve rapid material molding.
This allows for simultaneous injection molding and cooling operations, improving processing efficiency and accelerating material cooling, thus ensuring rapid molding of plastic products.
Smart Images

Figure CN224158822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of switch cover production, specifically to a switch cover injection molding machine. Background Technology
[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to mold thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molds. They are divided into vertical, horizontal, and all-electric types. Injection molding machines heat plastic and apply high pressure to the molten plastic, causing it to be injected and fill the mold cavity. In the production of bottle caps, it is often necessary to use an injection molding machine to mold the bottle caps.
[0003] Most existing injection molding machines only have one set of upper and lower molds for use, which makes it impossible to carry out injection and cooling operations simultaneously, thus reducing processing efficiency. At the same time, injection molding machines do not have a cooling mechanism with good cooling effect, which makes it impossible to quickly mold plastic products. Summary of the Invention
[0004] The purpose of this invention is to provide an injection molding machine for switch covers to solve the aforementioned defects caused by the prior art.
[0005] An injection molding machine for opening and closing covers includes an injection housing, a transmission housing, and a mold base. A servo motor is located directly below the injection housing, and an extrusion mechanism is located on one side of the servo motor. The extrusion mechanism laterally conveys heated material and then performs injection molding processing inside the mold. The mold bases are symmetrically arranged below the injection housing, and one set of mold bases is connected to an electric cylinder output terminal on one side. A cooling mechanism is located on one side of the transmission housing. The cooling mechanism cools the mold by circulating air and liquid, and cools the liquid during the injection molding process.
[0006] Preferably, the extrusion mechanism includes a servo motor, gears, a feeding hopper, a transmission housing, a melting tank, and a feeding pipe. The output end of the servo motor is connected to a set of gears, which are installed inside the transmission housing. One side of the gears meshes with another set of gears. A melting tank is provided on one side of the transmission housing. A feeding hopper is connected to the top of the melting tank. A feeding pipe is provided on one side of the melting tank.
[0007] Preferably, the feeding hopper is connected to one side of the feeding pipe through a melting box at the bottom.
[0008] Preferably, the cooling mechanism includes a liquid storage tank, a water-cooling pipe, a spiral blade, a fan blade, a solenoid valve, and a drain valve. The liquid storage tank is installed at the bottom of the injection-molded housing. One side of the water-cooling pipe is connected to the output end of the solenoid valve, and the input end of the solenoid valve is connected to the bottom of the liquid storage tank. The spiral blade is disposed inside the water-cooling pipe. One side of the fan blade is connected to a gear, which is disposed inside the transmission housing. One end of the spiral blade is connected to a gear.
[0009] Preferably, the liquid storage tank is connected to the top of the water cooling pipe via a solenoid valve located at the bottom.
[0010] Preferably, the spiral blades are connected to the inner cavity of the mold base via a water-cooling pipe disposed on the outer side.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] 1. During use, the servo motor, gears, and extrusion screw rotate, and the molten material is then injected laterally into the mold through the molten material box. During the injection process, the material is cooled by air. On the other hand, the servo motor drives the gears to rotate, and the gears drive the spiral blades to rotate, circulating the liquid. This circulates and cools the material during the injection process, improving the efficiency of material forming.
[0013] 2. The servo motor drives the extrusion screw to rotate, while the gear drives the spiral blades to rotate, thereby increasing the flow rate of the liquid. At the same time, the stirring shaft can maintain the fluidity of the raw material inside the feeding tube of the injection molding machine, preventing the raw material at the end of the extrusion tube from solidifying when the product is cooled and molded. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the internal structure of the transmission box in this utility model.
[0017] Figure 4 This is a schematic diagram of the internal structure of the water-cooled pipe in this utility model.
[0018] in:
[0019] 1. Injection molding housing; 2. Servo motor; 3. Liquid storage tank; 4. Feeding hopper; 5. Transmission housing; 6. Extrusion mechanism; 7. Water cooling pipe; 8. Melting tank; 9. Mold base; 10. Electric cylinder; 11. Spiral blade; 12. Cooling mechanism; 13. Gear; 14. Fan blade; 15. Solenoid valve; 16. Drain valve; 17. Feeding pipe fittings. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figures 1 to 4 As shown, the injection molding machine for opening and closing covers includes an injection housing 1, a transmission housing 5, and a mold base 9. A servo motor 2 is located directly below the injection housing 1, and an extrusion mechanism 6 is located on one side of the servo motor 2. The extrusion mechanism 6 conveys the heated material laterally and then performs injection molding processing inside the mold. The mold bases 9 are symmetrically arranged below the injection housing 1, and one set of mold bases 9 is connected to the output end of an electric cylinder 10 on one side. A cooling mechanism 12 is located on one side of the transmission housing 5. The cooling mechanism 12 cools the mold by circulating air and liquid, and cools the liquid during the injection molding process.
[0022] In this embodiment, the extrusion mechanism 6 includes a servo motor 2, a gear 13, a feeding hopper 4, a transmission housing 5, a melting tank 8, and a feeding pipe 17. The output end of the servo motor 2 is connected to a set of gears 13. The gears 13 are installed inside the transmission housing 5. One side of the gears 13 meshes with another set of gears 13. The melting tank 8 is provided on one side of the transmission housing 5. The top of the melting tank 8 is connected to the feeding hopper 4. The feeding pipe 17 is provided on one side of the melting tank 8.
[0023] In this embodiment, the feeding hopper 4 is connected to one side of the feeding pipe 17 through the melting box 8 set at the bottom. The material is melted and transported through the melting box 8, thereby improving the efficiency of material injection.
[0024] In this embodiment, the cooling mechanism 12 includes a liquid storage tank 3, a water-cooling pipe 7, a spiral blade 11, a fan blade 14, a solenoid valve 15, and a drain valve 16. The liquid storage tank 3 is installed at the bottom of the injection-molded housing 1. One side of the water-cooling pipe 7 is connected to the output end of the solenoid valve 15, and the input end of the solenoid valve 15 is connected to the bottom of the liquid storage tank 3. The spiral blade 11 is disposed inside the water-cooling pipe 7. One side of the fan blade 14 is connected to a gear 13, which is disposed inside the transmission housing 5. One end of the spiral blade 11 is connected to the gear 13. The spiral blade 11 increases the flow rate of the liquid, thereby carrying away the heat from the material.
[0025] In this embodiment, the liquid storage tank 3 is connected to the top of the water cooling pipe 7 via a solenoid valve 15 at the bottom. The solenoid valve 15 is used to open and close the liquid, which facilitates circulating water cooling.
[0026] In this embodiment, the spiral blade 11 is connected to the inner cavity of the mold base 9 through the water cooling pipe 7 provided on the outside. The spiral blade 11 accelerates the flow rate of the liquid, thereby effectively reducing the heat absorption of the mold material.
[0027] In practical applications, this type of injection molding machine for opening and closing covers includes the following tasks:
[0028] Step 1: During use, the material is first directly fed into the inside of the feeding hopper 4, and the material is heated and melted by the electric heating plate inside the melting box 8. At the same time, the servo motor 2 drives the extrusion screw to rotate, and the extrusion screw is used to extrude the material laterally into the inside of the feeding pipe 17. The feeding pipe 17 is used to inject the material into the injection mold. At the same time, the electric cylinder 10 pushes one side of the mold base 9 so that the two sets of molds are connected.
[0029] Step 2: Simultaneously, the operator drives the gear 13 to rotate via the servo motor 2. The gear 13 drives the gear 13 on one side to rotate, and at the same time, the solenoid valve 15 is opened to inject the liquid inside the storage tank 3 into the water cooling pipe 7 below. The gear 13 drives the spiral blade 11 to rotate, thereby accelerating the flow rate of the liquid, so that the liquid flows directly into the inner cavity of the mold base 9 to cool the mold connected to the mold base 9.
[0030] Step 3: At the same time, the servo motor 2 drives the fan blade 14 to rotate, thereby accelerating the airflow inside the transmission housing 5. By isolating the injection housing 1 from the outside world, dust accumulation on the internal surface of the injection housing 1 is reduced. The circulating air cools one side of the feeding pipe 17 and the mold base 9, thereby shortening the material cooling time.
[0031] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.
Claims
1. An injection molding machine for opening and closing covers, characterized in that: The system includes an injection molding housing (1), a transmission housing (5), and a mold base (9). A servo motor (2) is located directly below the injection molding housing (1), and an extrusion mechanism (6) is located on one side of the servo motor (2). The extrusion mechanism (6) conveys the heated material laterally and then performs injection molding processing inside the mold. The mold base (9) is symmetrically arranged below the injection molding housing (1). One side of one set of mold bases (9) is connected to the output end of an electric cylinder (10). A cooling mechanism (12) is located on one side of the transmission housing (5). The cooling mechanism (12) cools the mold by circulating air and liquid, and cools the liquid during the injection molding process.
2. The injection molding machine for the switch cover according to claim 1, characterized in that: The extrusion mechanism (6) includes a servo motor (2), gears (13), a feeding hopper (4), a transmission housing (5), a melting tank (8), and a feeding pipe (17). The output end of the servo motor (2) is connected to a set of gears (13). The gears (13) are installed inside the transmission housing (5). One side of the gears (13) meshes with another set of gears (13). The melting tank (8) is provided on one side of the transmission housing (5). The feeding hopper (4) is connected to the top of the melting tank (8). The feeding pipe (17) is provided on one side of the melting tank (8).
3. The injection molding machine for the switch cover according to claim 2, characterized in that: The feeding hopper (4) is connected to one side of the feeding pipe (17) through the melting box (8) set at the bottom.
4. The injection molding machine for the switch cover according to claim 1, characterized in that: The cooling mechanism (12) includes a liquid storage tank (3), a water cooling pipe (7), a spiral blade (11), a fan blade (14), a solenoid valve (15), and a drain valve (16). The liquid storage tank (3) is installed at the bottom of the injection molded housing (1). The output end of the solenoid valve (15) is connected to one side of the water cooling pipe (7), and the input end of the solenoid valve (15) is connected to the bottom of the liquid storage tank (3). The spiral blade (11) is located inside the water cooling pipe (7). A gear (13) is connected to one side of the fan blade (14). The gear (13) is located inside the transmission housing (5), and one end of the spiral blade (11) is connected to the gear (13).
5. The injection molding machine for the switch cover according to claim 4, characterized in that: The liquid storage tank (3) is connected to the top of the water cooling pipe (7) via a solenoid valve (15) at the bottom.
6. The injection molding machine for the switch cover according to claim 4, characterized in that: The spiral blade (11) is connected to the inner cavity of the mold base (9) through a water-cooling pipe (7) provided on the outside.