Injection molding machine with double injection molding ports

Abstract

The utility model provides an injection molding machine with double injection molding ports, which relates to the technical field of injection molding equipment and comprises an injection molding machine body, the injection molding machine body comprises a machine body, a power component is mounted on the machine body, an injection molding component is mounted on the power component, and a hydraulic pushing component is mounted on the machine body. And a mold assembly is mounted on the hydraulic pushing assembly. Cooling liquid can be conveyed into the cooling pipeline through the output pipe through the refrigerating machine, then the barrel, the funnel and the discharging pipe are cooled, the cooled liquid is conveyed back into the refrigerating machine through the output channel and the input pipe, circulation is completed, the barrel, the funnel and the discharging pipe are cooled, and the cooling efficiency is improved. The problem that raw materials are bonded or caked due to the fact that the temperature is too high is solved, the materials can be mixed more sufficiently, meanwhile, the temperature distribution of the raw materials is more uniform, and therefore the cooling effect of the barrel, the funnel and the discharging pipe is further improved.

Description

Technical Field

[0001] This utility model relates to an injection molding machine, specifically a dual-injection-port injection molding machine, and belongs to the field of injection molding equipment technology. Background Technology

[0002] Injection molding machines are widely used in the production of plastic products. They heat and melt plastic granules and inject them into molds to form finished products, providing a highly efficient production method for modern industry. The application of dual injection gate technology can meet the production needs of products made of various materials and in various colors, and provides flexibility for the manufacturing of complex structural parts.

[0003] Chinese Patent Publication CN217802962U discloses a dual-injection-port injection molding machine. The control box activates the drive motor and heating coil, causing the drive motor to rotate the stirring rod and add plastic into the two injection ports. The plastic is fed into the feed cylinder through the inlet. The heating coil raises the temperature in the feed cylinder, while the drive motor drives the stirring rod to mix the added plastic. With the cooperation of the drive motor, stirring rod, and heating coil, the plastic is initially mixed into a molten state. The drive motor and stirring rod allow for initial processing of the plastic, while the heating coil ensures the plastic is molten.

[0004] In practical applications, it has been found that during the heating process of the injection molding machine barrel, heat is conducted to the discharge port through the screw and barrel, causing the discharge port temperature to rise. The aforementioned patent, which installs multiple electric heating devices inside the injection barrel, will result in excessively high discharge port temperatures. When the discharge port temperature is too high, some plastic may melt unevenly near the discharge port, leading to some plastic sticking or clumping. This will affect the subsequent feeding process. Therefore, a dual-discharge injection molding machine is proposed here. Utility Model Content

[0005] This utility model proposes a dual-injection-port injection molding machine that can cool the entire feeding assembly to solve the problem of raw materials sticking or clumping due to excessive temperature. At the same time, it can stir the material to make the temperature distribution of the material more uniform, thereby further improving the cooling effect and ensuring the smoothness of the material during the feeding process.

[0006] This utility model is achieved through the following technical solution: a dual-injection-port injection molding machine, including an injection molding machine body, the injection molding machine body including a machine body, a power component installed on the machine body, an injection component installed on the power component, a hydraulic push component installed on the machine body, and a mold component installed on the hydraulic push component.

[0007] The injection molding machine body is equipped with a feeding assembly, which includes a cylinder, a funnel, and a discharge pipe. The funnel is fixed to the bottom of the cylinder, and the discharge pipe is fixed to the bottom of the funnel. A cylinder door is rotatably connected to the top of the cylinder, and a handle groove is provided on the cylinder door. A cover plate is fixed to the top of the cylinder, and the outer contour of the cover plate is U-shaped.

[0008] The feeding assembly is equipped with a cooling mechanism, which includes a refrigeration unit. The output end of the refrigeration unit is connected to an output pipe, and the input end of the refrigeration unit is connected to an input pipe. Cooling pipes are provided inside the cylinder, funnel, and feeding pipe. An output channel is provided inside the cylinder, funnel, and feeding pipe, which is connected to the output end of the cooling pipe. The output end of the output channel is connected to the input end of the input pipe, and the output end of the output pipe is connected to the input end of the cooling pipe.

[0009] The feeding assembly is equipped with a stirring assembly, which includes a motor mounted on the top surface of the injection molding machine body. The output end of the motor is fixed with a driving helical gear. A rotating shaft is rotatably connected to the cylinder through a mounting bracket. A first driven helical gear that meshes with the driving helical gear is fixed on the rotating shaft. A rotating cylinder is rotatably connected to the cylinder. A second helical gear that meshes with the driving helical gear is fixed on the rotating cylinder, and the rotating shaft is slidably sleeved inside the rotating cylinder.

[0010] The stirring assembly is provided with a stirring rod assembly, which includes a fixed rod. The fixed rod is fixed to the rotating shaft and the rotating cylinder. A scraper is fixed on the fixed rod, and the scraper slides in contact with the inner wall of the cylinder, the funnel, and the feed pipe.

[0011] This utility model provides a dual-injection-gate injection molding machine, which has the following beneficial effects:

[0012] 1. This dual-injection-port injection molding machine uses a refrigeration unit to deliver coolant through the output pipe to the cooling pipe, thereby cooling the cylinder, funnel, and discharge pipe. The cooled liquid is then returned to the refrigeration unit through the output channel and input pipe, completing the circulation and further cooling the cylinder, funnel, and discharge pipe. This solves the problem of raw materials sticking or clumping due to excessive temperature. Simultaneously, the motor is started, and the motor drives the rotating shaft and cylinder to rotate through the cooperation of the driving helical gear, the first driven helical gear, and the second helical gear. The rotating shaft and cylinder rotate in opposite directions, effectively reducing the risk of raw material accumulation caused by the centrifugal effect of unidirectional rotation, and more thoroughly mixing the materials. At the same time, it makes the temperature distribution of the raw materials more uniform, thereby further improving the cooling effect of the cylinder, funnel, and discharge pipe. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the cooling mechanism of this utility model;

[0015] Figure 3 This is a cross-sectional view of the internal structure of the cylinder, funnel, and connecting pipe of this utility model;

[0016] Figure 4 This is a top view of the cylindrical structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the stirring assembly structure of this utility model.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Injection molding machine body; 101. Machine body; 102. Power unit; 103. Injection molding assembly; 104. Mold assembly; 105. Hydraulic actuation assembly;

[0020] 2. Feeding assembly; 201. Cylinder body; 2011. Cylinder door; 2012. Cover plate; 202. Funnel; 203. Discharge pipe;

[0021] 3. Cooling mechanism; 301. Refrigeration unit; 302. Output pipe; 303. Input pipe; 304. Cooling pipe; 305. Output channel;

[0022] 4. Stirring assembly; 401. Motor; 402. Driving helical gear; 403. Rotating shaft; 404. First driven helical gear; 405. Rotating drum; 406. Second helical gear;

[0023] 5. Stirring rod assembly; 501. Fixing rod; 502. Scraper. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0025] Please see Figures 1-5This utility model provides a dual-injection-port injection molding machine, including an injection molding machine body 1. The injection molding machine body 1 includes a machine body 101, which is a structural frame used to support and fix other components, ensuring the stability and strength of the entire equipment. A power assembly 102 is installed on the machine body 101, which is responsible for transmitting power to the injection molding assembly 103. The injection molding assembly 103 is installed on the power assembly 102 and mainly includes an injection barrel, screw, injection device, heating device, etc., which is responsible for heating, melting and injecting plastic raw materials into the mold assembly 104. A hydraulic push assembly 105 is installed on the machine body 101, and the mold assembly 104 is installed on the hydraulic push assembly 105. The hydraulic push assembly 105 provides a power source for the mold assembly 104. The mold assembly 104 includes a mold body, mold frame, mold core, etc., which is responsible for molding the shape of plastic products.

[0026] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The injection molding machine body 1 is equipped with a feeding assembly 2, which includes a cylinder 201, a funnel 202, and a discharge pipe 203. The funnel 202 is fixed to the bottom of the cylinder 201, and the discharge pipe 203 is fixed to the bottom of the funnel 202. The upper port of the funnel 202 is larger and the lower port is smaller. The top of the cylinder 201 is rotatably connected to a cylinder door 2011, which has a handle groove. The top of the cylinder 201 is fixed with a cover plate 2012, which has a U-shaped outer contour. The cover plate 2012 can protect components such as the motor 401 and the drive helical gear 402.

[0027] Please refer to this carefully. Figure 2 and Figure 3 The feeding assembly 2 is equipped with a cooling mechanism 3, which includes a refrigeration unit 301. The refrigeration unit 301 is an existing device that enables the refrigerant to circulate within the refrigeration unit 301, output pipe 302, input pipe 303, cooling pipe 304, and output channel 305, thereby achieving the purpose of cooling by absorbing heat. The output end of the refrigeration unit 301 is connected to the output pipe 302, and the input end of the refrigeration unit 301 is connected to the input pipe 303. Cooling pipe 304 is provided inside the cylinder 201, funnel 202, and feeding pipe 203. An output channel 305 is provided inside the cylinder 201, funnel 202, and feeding pipe 203, which is connected to the output end of the cooling pipe 304. The output end of the output channel 305 is connected to the input end of the input pipe 303, and the output end of the output pipe 302 is connected to the input end of the cooling pipe 304.

[0028] Please refer to this carefully. Figure 3 and Figure 5The feeding assembly 2 is equipped with a stirring assembly 4. The stirring assembly 4 includes a motor 401 installed on the top surface of the injection molding machine body 1. The output end of the motor 401 is fixed with a driving helical gear 402. The start of the motor 401 will drive the driving helical gear 402 to rotate. A rotating shaft 403 is rotatably connected to the cylinder 201 through a mounting bracket. A first driven helical gear 404 that meshes with the driving helical gear 402 is fixed on the rotating shaft 403. The rotation of the driving helical gear 402 will drive the first driven helical gear 404 to rotate.

[0029] The rotation of the first driven helical gear 404 will drive the rotating shaft 403 to rotate. A rotating cylinder 405 is rotatably connected to the cylinder body 201. A second helical gear 406 that meshes with the driving helical gear 402 is fixed on the rotating cylinder 405. The rotation of the driving helical gear 402 will also drive the second helical gear 406 to rotate. The rotation of the second helical gear 406 will drive the rotating cylinder 405 to rotate. The rotating shaft 403 and the rotating cylinder 405 rotate in opposite directions, and the rotating shaft 403 is slidably sleeved inside the rotating cylinder 405.

[0030] Please refer to this carefully. Figure 3 The stirring assembly 4 is equipped with a stirring rod assembly 5, which includes a fixed rod 501. The fixed rod 501 is fixed on the rotating shaft 403 and the rotating drum 405. A scraper 502 is fixed on the fixed rod 501, and the scraper 502 slides in contact with the inner wall of the drum 201, the funnel 202, and the feed pipe 203. The rotation of the rotating drum 405 and the rotating shaft 403 will drive the fixed rod 501 and the scraper 502 to rotate. The rotating fixed rod 501 will stir the raw materials, and the rotating scraper 502 can scrape off the raw materials adhering to the inner wall of the drum 201, the funnel 202, and the feed pipe 203.

[0031] Working principle: When feeding materials, the refrigeration unit 301 and the motor 401 are started first. The refrigeration unit 301, once started, can transport the coolant through the output pipe 302 to the inside of the cooling pipe 304, thereby cooling the cylinder 201, the funnel 202, and the feeding pipe 203. The cooled liquid will be sent back to the refrigeration unit 301 through the output channel 305 and the input pipe 303 to complete the circulation, cooling the cylinder 201, the funnel 202, and the feeding pipe 203, so as to solve the problem of the raw materials sticking or clumping due to excessive temperature.

[0032] Simultaneously, the start of motor 401 will drive the active helical gear 402 to rotate. The active helical gear 402 will simultaneously drive the first driven helical gear 404 and the second helical gear 406 to rotate. Through the first driven helical gear 404 and the second helical gear 406, the rotating shaft 403 and the rotating drum 405 will be driven to rotate respectively. The rotating shaft 403 and the rotating drum 405 will drive the fixed rod 501 to rotate, thereby stirring the raw materials. Moreover, the rotating shaft 403 and the rotating drum 405 rotate in opposite directions, which effectively reduces the risk of raw material accumulation caused by the centrifugal effect of unidirectional rotation, and mixes the materials more thoroughly. At the same time, it makes the temperature distribution of the raw materials more uniform, thereby further improving the cooling effect of the cylinder 201, the funnel 202, and the feed pipe 203.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-injection-gate injection molding machine, comprising an injection molding machine body (1), characterized in that: The injection molding machine body (1) is provided with a feeding assembly (2), the feeding assembly (2) is provided with a cooling mechanism (3), the feeding assembly (2) is provided with a stirring assembly (4), and the stirring assembly (4) is provided with a stirring rod assembly (5); The feeding assembly (2) includes a cylinder (201), a funnel (202), and a discharge pipe (203); The cooling mechanism (3) includes a refrigeration unit (301), the output end of which is connected to an output pipe (302), the input end of which is connected to an input pipe (303), a cooling pipe (304) is provided inside the cylinder (201), funnel (202), and discharge pipe (203), and an output channel (305) connected to the output end of the cooling pipe (304) is provided inside the cylinder (201), funnel (202), and discharge pipe (203), and the output end of the output channel (305) is connected to the input end of the input pipe (303), and the output end of the output pipe (302) is connected to the input end of the cooling pipe (304); The stirring assembly (4) includes a motor (401) mounted on the top surface of the injection molding machine body (1). The output end of the motor (401) is fixed with a driving helical gear (402). A rotating shaft (403) is rotatably connected to the cylinder (201) via a mounting bracket. A first driven helical gear (404) meshing with the driving helical gear (402) is fixed on the rotating shaft (403). A rotating cylinder (405) is rotatably connected to the cylinder (201). A second helical gear (406) meshing with the driving helical gear (402) is fixed on the rotating cylinder (405). The rotating shaft (403) is slidably sleeved inside the rotating cylinder (405).

2. The dual-injection-gate injection molding machine according to claim 1, characterized in that: The stirring rod assembly (5) includes a fixing rod (501), which is fixed on the rotating shaft (403) and the rotating cylinder (405). A scraper (502) is fixed on the fixing rod (501), and the scraper (502) slides in contact with the inner wall of the cylinder (201), the funnel (202), and the feed pipe (203).

3. The dual-injection-gate injection molding machine according to claim 1, characterized in that: The funnel (202) is fixed to the bottom of the cylinder (201), the feeding pipe (203) is fixed to the bottom of the funnel (202), and the top of the cylinder (201) is rotatably connected to the cylinder door (2011), and the cylinder door (2011) is provided with a handle groove.

4. A dual-injection-gate injection molding machine according to claim 1, characterized in that: The top of the cylinder (201) is fixed with a cover plate (2012), and the outer contour of the cover plate (2012) is U-shaped.

5. A dual-injection-gate injection molding machine according to claim 1, characterized in that: The injection molding machine body (1) includes a machine body (101), a power assembly (102) is installed on the machine body (101), and an injection molding assembly (103) is installed on the power assembly (102).

6. A dual-injection-gate injection molding machine according to claim 5, characterized in that: A hydraulic actuation assembly (105) is installed on the body (101), and a mold assembly (104) is installed on the hydraulic actuation assembly (105).

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