Plastic injection molding device with rapid cooling function

Abstract

The utility model discloses a plastic injection molding device capable of rapidly cooling, relates to the field of injection molding processing, solves the problem that the existing device is difficult to efficiently and rapidly cool plastic strips extruded by an extrusion type injection molding machine according to requirements, and adopts the following scheme that the plastic injection molding device comprises a working table plate and the extrusion type injection molding machine fixedly mounted on the working table plate, a discharging pipe is arranged at the output end of the extrusion type injection molding machine, and a rapid cooling assembly is assembled on the discharging pipe; a heat conduction block is arranged on the inner side of the rapid cooling assembly, and a liquid inlet pipe opening is fixedly connected to the bottom of the front side of the rapid cooling assembly. According to the plastic injection molding device with the rapid cooling function, by arranging the rapid cooling assembly at the output end of the extrusion type injection molding machine, the heat conduction effect can be guaranteed through the rapid cooling assembly and a heat conduction block on the inner side of the rapid cooling assembly, meanwhile, a liquid pump can convey cooling liquid to the inner side of the heat conduction block, and heat conducted out of the heat conduction block is taken away through the rapidly-circulating cooling liquid; therefore, efficient heat dissipation of the discharged plastic strips is achieved.

Description

A rapid cooling plastic injection molding device Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a rapid cooling plastic injection molding device. Background Technology

[0002] Plastic processing requires injection molding of raw materials, usually by ejection, but extrusion is also possible, where a plastic strip is extruded by an injection molding machine and then cut into granules.

[0003] A search revealed that patent application number 202122640960.2 discloses a rapid cooling plastic injection molding device. The main body is equipped with an injection mold cavity, a piston tube, and a connecting pipe. The main body has an exhaust port, a fixed rod, and a mounting plate. A motor is mounted on the mounting plate, and a lead screw is mounted at the motor's output end. A movable block is mounted on the fixed rod and lead screw, and a mounting rod is mounted at the bottom of the movable block. A stamping piston is mounted on the mounting rod, and the stamping piston is movably connected to the piston tube. This rapid cooling plastic injection molding device solves the problem of difficult demolding and potential product damage caused by overheating of the mold during processing, which occurs in existing injection molds, through the combined use of the piston tube and the stamping piston.

[0004] In the plastics processing industry, ejection molding and extrusion molding are two common molding processes. Most publicly available applications focus on ejection molding technology, and a relatively mature technical system has been established in terms of process parameter settings and mold structure design. However, there is a significant gap in existing technology regarding the cooling of plastic strips during extrusion molding. Because the extruded plastic strip retains residual heat, if it cannot be cooled promptly and effectively, it will seriously affect the accuracy and efficiency of subsequent cutting processes, leading to frequent problems such as burrs and dimensional deviations, making it difficult to meet the high-quality and high-efficiency production requirements of plastic strip granulation. Therefore, developing a rapid cooling technology for plastic strips suitable for extrusion molding has become a key technical challenge that urgently needs to be solved to achieve efficient plastic strip granulation.

[0005] Therefore, we propose a rapid cooling plastic injection molding device. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a rapid cooling plastic injection molding device, which solves the problem that existing devices are unable to efficiently and rapidly cool the plastic strips extruded from extrusion injection molding machines according to requirements.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a rapid cooling plastic injection molding device, including a worktable and an extrusion injection molding machine fixedly installed on it, wherein the output end of the extrusion injection molding machine is a discharge pipe, and a rapid cooling component is assembled on the discharge pipe;

[0008] A heat-conducting block is provided on the inner side of the rapid cooling component. An inlet is fixedly connected to the bottom front side of the rapid cooling component. The rapid cooling component is fixedly connected to the output end of the coolant tank through the inlet. A drain is fixedly connected to the top rear side of the inlet. The rapid cooling component is fixedly connected to the conduit through the drain, and the outer end of the conduit is fixedly connected to the input end of the liquid pump.

[0009] As a preferred embodiment of the present invention, the rapid cooling component includes an inner cylinder and an outer cylinder, a cooling cavity is provided between the inner cylinder and the outer cylinder, and a heat-conducting block is provided on the inner side of the inner cylinder.

[0010] The rapid cooling component structure facilitates the output of the extruded plastic strip from the inner side of the inner cylinder, while the cooling chamber dissipates heat, thereby achieving rapid cooling of the extruded plastic strip inside.

[0011] As a preferred embodiment of this utility model, the front end of the rapid cooling component is fixedly installed with a shaping port, the rear end of the rapid cooling component is fixedly connected with a threaded port, and the rapid cooling component is threadedly fitted into the inner side of the discharge pipe end through the threaded port.

[0012] The rapid cooling assembly features a sizing port for easy discharge of the extruded plastic strip, while the threaded port facilitates the assembly of the rapid cooling assembly onto the discharge pipe at the output end of the extrusion injection molding machine, enabling efficient disassembly and subsequent maintenance.

[0013] As a preferred embodiment of this utility model, the heat-conducting block is a cylindrical seat made of copper, and a threaded liquid guiding channel is provided on the inner side of the heat-conducting block.

[0014] The copper material of the heat-conducting block facilitates the dissipation of heat carried on the extruded plastic strip inside the rapid cooling component, ensuring the heat conduction effect. At the same time, the liquid flow in the liquid channel carries away the heat dissipated on it, ensuring the rapid cooling effect.

[0015] As a preferred embodiment of this utility model, the heat-conducting block has liquid inlet ports and liquid outlet ports at its two ends, which are positioned opposite each other, and the liquid inlet ports and liquid outlet ports are connected to the two ends of the liquid guiding channel.

[0016] The design of the inlet and outlet ports facilitates the delivery of coolant from the end to the liquid channel, ensuring effective heat dissipation.

[0017] As a preferred embodiment of the present invention, the liquid inlet port and the liquid outlet port are respectively located on the inner end side of the liquid inlet pipe and the liquid outlet pipe on the rapid cooling assembly.

[0018] The design of the inlet and outlet ports facilitates the delivery of coolant from the coolant tank to the inside of the heat-conducting block, allowing it to carry away the heat conducted on the plastic strip and ensuring rapid cooling.

[0019] This invention provides a rapid cooling plastic injection molding device. It has the following beneficial effects:

[0020] This rapid cooling plastic injection molding device, through the setting of a rapid cooling component at the output end of the extrusion injection molding machine, can ensure heat conduction by utilizing the component and its inner heat-conducting block. At the same time, the liquid pump can deliver coolant to the inside of the heat-conducting block, and the rapidly flowing coolant can carry away the heat conducted from the heat-conducting block, thereby achieving efficient heat dissipation of the discharged plastic strip. This solves the problem that existing devices are unable to efficiently and rapidly cool the plastic strips extruded by the extrusion injection molding machine according to the requirements. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the structure of this utility model;

[0022] Figure 2 is a side view of the structure of this utility model;

[0023] Figure 3 is a structural schematic diagram of the rapid cooling component of this utility model;

[0024] Figure 4 is a schematic diagram of the inner structure of the heat-conducting block of this utility model.

[0025] In the diagram: 1. Workbench; 2. Extrusion injection molding machine; 3. Discharge pipe; 4. Rapid cooling assembly; 41. Liquid inlet; 42. Liquid outlet; 43. Coolant tank; 44. Shaping port; 45. Threaded port; 5. Liquid pump; 6. Guide pipe; 7. Heat-conducting block; 71. Liquid inlet; 72. Liquid outlet; 73. Liquid channel. 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 refer to Figures 1-4. This utility model embodiment provides a technical solution: a rapid cooling plastic injection molding device, including a worktable 1 and an extrusion injection molding machine 2 fixedly installed on it. The output end of the extrusion injection molding machine 2 is a discharge pipe 3, and a rapid cooling component 4 is assembled on the discharge pipe 3. A heat-conducting block 7 is provided on the inner side of the rapid cooling component 4. An inlet pipe 41 is fixedly connected to the bottom of the front side of the rapid cooling component 4. The rapid cooling component 4 is fixedly connected to the output end of the coolant tank 43 through the inlet pipe 41. A drain pipe 42 is fixedly connected to the top of the rear side of the inlet pipe 41. The rapid cooling component 4 is fixedly connected to the conduit 6 through the drain pipe 42, and the outer end of the conduit 6 is fixedly connected to the input end of the liquid pump 5.

[0028] The rapid cooling plastic injection molding device, through the rapid cooling component 4 at the output end of the extrusion injection molding machine 2, can ensure heat conduction by utilizing the heat-conducting block 7 inside it. At the same time, the liquid pump 5 can deliver coolant to the inside of the heat-conducting block 7, and the rapidly flowing coolant can carry away the heat conducted off the heat-conducting block 7, thereby achieving efficient heat dissipation of the discharged plastic strip. This solves the problem that existing devices are unable to efficiently and rapidly cool the plastic strips extruded by the extrusion injection molding machine 2 according to requirements.

[0029] Example 2:

[0030] The rapid cooling assembly 4 includes an inner cylinder and an outer cylinder, with a cooling chamber between the inner and outer cylinders, and a heat-conducting block 7 is provided on the inner side of the inner cylinder. The structure of the rapid cooling assembly 4 facilitates the output of the plastic strip extruded by the extrusion injection molding machine 2 from the inner side of the inner cylinder, and the cooling chamber can dissipate heat, thereby achieving rapid cooling of the plastic strip extruded from its inner side.

[0031] The front end of the rapid cooling component 4 is fixedly installed with a shaping port 44, and the rear end of the rapid cooling component 4 is fixedly connected with a threaded port 45. The rapid cooling component 4 is threadedly fitted into the inner side of the end of the discharge pipe 3 through the threaded port 45. The shaping port 44 on the rapid cooling component 4 facilitates the discharge of the extruded plastic strip, while the threaded port 45 facilitates the assembly of the rapid cooling component 4 onto the discharge pipe 3 at the output end of the extrusion injection molding machine 2, so as to facilitate efficient disassembly and subsequent maintenance.

[0032] The heat-conducting block 7 is a cylindrical seat made of copper, and the inner side of the heat-conducting block 7 is provided with a threaded liquid guiding channel 73. The copper material of the heat-conducting block 7 facilitates the discharge of heat carried on the plastic strip extruded from the inside of the rapid cooling component 4, ensuring the heat conduction effect. At the same time, the liquid flow in the liquid guiding channel 73 carries away the heat discharged on it, ensuring the rapid cooling effect.

[0033] The heat-conducting block 7 has liquid inlet port 71 and liquid outlet port 72 at its two ends, which are positioned opposite each other and are connected to the two ends of the liquid guiding channel 73. The liquid inlet port 71 and liquid outlet port 72 are provided to facilitate the delivery of coolant from the ends to the liquid guiding channel 73, thus ensuring the subsequent heat dissipation effect.

[0034] The liquid inlet port 71 and the liquid outlet port 72 are respectively located on the inner side of the liquid inlet port 41 and the liquid outlet port 42 on the rapid cooling assembly 4; wherein, the setting of the liquid inlet port 71 and the liquid outlet port 72 facilitates the delivery of coolant in the coolant tank 43 to the inner side of the heat conduction block 7 so as to carry away the heat conduction on the plastic strip and ensure the rapid cooling effect.

[0035] The working principle and usage process of this utility model are as follows: When it is working, the rapid cooling component 4 is threaded onto the discharge pipe 3 at the output end of the extrusion injection molding machine 2. Then, the liquid pump 5 draws the coolant from the coolant tank 43. The coolant passes through the heat-conducting block 7 in the rapid cooling component 4 and carries away the heat conducted by the plastic strip inside the rapid cooling component 4, thereby achieving the effect of efficient and rapid heat dissipation for the workpiece extruded by the extrusion injection molding machine 2.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered illustrative and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid cooling plastic injection molding device, characterized in that: The system includes a workbench (1) and an extrusion injection molding machine (2) fixedly installed on it. The output end of the extrusion injection molding machine (2) is a discharge pipe (3). A rapid cooling component (4) is installed on the discharge pipe (3). A heat-conducting block (7) is provided on the inner side of the rapid cooling component (4). An inlet pipe (41) is fixedly connected to the bottom of the front side of the rapid cooling component (4). The rapid cooling component (4) is fixedly connected to the output end of the coolant tank (43) through the inlet pipe (41). A drain pipe (42) is fixedly connected to the top of the rear side of the inlet pipe (41). The rapid cooling component (4) is fixedly connected to the conduit (6) through the drain pipe (42). The outer end of the conduit (6) is fixedly connected to the input end of the liquid pump (5).

2. The rapid cooling plastic injection molding device according to claim 1, characterized in that: The rapid cooling component (4) includes an inner cylinder and an outer cylinder, a cooling chamber is provided between the inner cylinder and the outer cylinder, and a heat-conducting block (7) is provided on the inner side of the inner cylinder.

3. The rapid cooling plastic injection molding device according to claim 1, characterized in that: The front end of the rapid cooling component (4) is fixedly installed with a shaping port (44), and the rear end of the rapid cooling component (4) is fixedly connected with a threaded port (45). The rapid cooling component (4) is threadedly fitted into the inner side of the end of the discharge pipe (3) through the threaded port (45).

4. The rapid cooling plastic injection molding device according to claim 1, characterized in that: The heat-conducting block (7) is a cylindrical seat made of copper, and the inner side of the heat-conducting block (7) is provided with a threaded liquid channel (73).

5. The rapid cooling plastic injection molding device according to claim 4, characterized in that: The heat-conducting block (7) has an inlet port (71) and a drain port (72) at opposite ends, and the inlet port (71) and the drain port (72) are connected to the two ends of the liquid guiding channel (73).

6. The rapid cooling plastic injection molding device according to claim 5, characterized in that: The liquid inlet port (71) and the liquid outlet port (72) are respectively located on the inner end of the liquid inlet port (41) and the liquid outlet port (42) on the rapid cooling assembly (4).

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