Injection molding machine for refrigerator part production

Abstract

The utility model discloses an injection molding machine for refrigerator part production, and relates to the technical field of injection molding machines, the injection molding machine comprises a mold groove, a feeding mechanism and a right mold, the other side of the top end of the feeding mechanism is provided with a temperature sensor, the other side of the feeding mechanism is connected with an extrusion pipe, and the outer wall of the extrusion pipe is provided with an electromagnetic valve; and a mold groove is formed in the middle position of one side of the left mold, a heat conduction plate is installed on the inner side of the mold groove, an inner cavity is formed in one side of the heat conduction plate, a coiled pipe is installed on the inner wall of the inner cavity, and spray heads are evenly installed on the outer wall of one side of the coiled pipe. The output pump works to pump cold water in the water tank, the cold water enters the coiled pipe through the first telescopic hose, then the cold water is sprayed to the heat conducting plate through the multiple sprayers, heat of melt in the mold groove is absorbed through the heat conducting plate, and the heat conducting plate is cooled, so that a mold part in the mold groove is rapidly cooled, and the demolding speed is increased; the problem that the cooling speed is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to an injection molding machine for the production of refrigerator parts. Background Technology

[0002] Refrigerators are an indispensable appliance in modern life. They help us preserve food, freeze food, store ingredients, and cool beverages in our daily lives. Proper use and maintenance of refrigerators will bring convenience and comfort to our lives. With the increasing demand for refrigerators, the production of refrigerator parts requires the use of injection molding machines. Injection molding machines heat plastic, apply high pressure to the molten plastic, and then inject the molten plastic into the mold cavity through a screw to maintain its shape. Current injection molding machines do not have a cooling structure, and the molten plastic takes a long time to cool down and set, resulting in low production efficiency. Moreover, the molten plastic is prone to cooling down during the extrusion process, which affects the quality of the produced parts. In view of the above problems, this case was developed after in-depth research. Utility Model Content

[0003] The purpose of this invention is to provide an injection molding machine for the production of refrigerator parts, so as to solve the problem mentioned in the background art that the existing injection molding machine for the production of refrigerator parts does not guarantee the quality of parts and improve production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an injection molding machine for producing refrigerator parts, comprising a mold groove, a feeding mechanism, and a right mold. A control panel is installed below the feeding mechanism. A spiral rod is installed on the inner wall of the feeding mechanism, and a first drive motor is installed on the outer wall of the feeding mechanism at one end of the spiral rod. A funnel is connected to one side of the top of the feeding mechanism, and a temperature sensor is installed on the other side of the top of the feeding mechanism. An extrusion tube is connected to the other side of the feeding mechanism, and a solenoid valve is installed on the outer wall of the extrusion tube. The right mold is connected to one side of the extrusion tube, and a feed hole is provided on the inner side of the right mold. A left mold is installed on one side of the right mold. First pneumatic telescopic rods are installed on the outer walls of both ends of the left mold. A mold groove is provided at the middle position of one side of the left mold, and a heat-conducting plate is installed on the inner side of the mold groove. An inner cavity is provided on one side of the heat-conducting plate, and a serpentine tube is installed on the inner wall of the inner cavity. Nozzles are evenly installed on the outer wall of one side of the serpentine tube. A support frame is connected to one side of the left mold, and a water tank is installed on one side of the support frame.

[0005] Preferably, a second heating block is uniformly installed on the outer wall of the spiral rod, and a first heating block is uniformly installed on the inner wall below the funnel.

[0006] Preferably, a baffle is installed below the funnel, and a second pneumatic telescopic rod is installed on the outer wall of the feeding mechanism on one side of the baffle.

[0007] Preferably, a second drive motor is installed on the inner side above the funnel, and the output end of the second drive motor is connected to a stirring rod through a drive shaft.

[0008] Preferably, both ends of the right mold side are connected to positioning rods, and both ends of the left mold side are provided with positioning grooves that cooperate with the positioning rods.

[0009] Preferably, an output pump is installed at the top of the water tank, and a first telescopic hose is connected to one side of the output pump, with one end of the first telescopic hose being fixedly connected to a serpentine tube.

[0010] Preferably, a second telescopic hose is installed on the inner side below the inner cavity, and one end of the second telescopic hose is connected to a heat exchanger. A circulation pump is connected to one side of the heat exchanger, and one side of the circulation pump is fixedly connected to the water tank through a water pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model provides an output pump, a nozzle and a heat-conducting plate. The output pump draws cold water from the water tank. The cold water enters the serpentine tube through the first telescopic hose and then sprays cold water onto the heat-conducting plate through multiple nozzles. The heat-conducting plate absorbs the heat of the molten liquid in the mold cavity. By cooling the heat-conducting plate, it is easy to cool the mold parts in the mold cavity quickly, improve the demolding speed and solve the problem of slow cooling speed.

[0013] (2) This utility model provides a funnel, a second drive motor, and a baffle. Plastic granules are placed into the funnel, and multiple first heating blocks work to heat and melt the granules. At the same time, the second drive motor works to stir the stirring rod, making the heating more efficient. After melting into a liquid, the baffle is moved to one side and opened by the second pneumatic telescopic rod. Then the liquid enters the feeding mechanism and is fed to one side. Multiple second heating blocks inside the feeding mechanism heat the liquid again, preventing it from cooling during the feeding process. The temperature of the liquid is detected by a temperature sensor. When the temperature reaches the specified temperature, the temperature sensor sends a signal to the control panel. The control panel controls the solenoid valve to open, allowing the liquid to enter the mold cavity for shaping, ensuring the quality of the processed parts and solving the problem of liquid temperature drop. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the device of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the funnel structure of this utility model;

[0016] Figure 3 This is a side view of the serpentine tube structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Heat exchanger; 2. Circulating pump; 3. Water tank; 4. Mold groove; 5. Heat-conducting plate; 6. Output pump; 7. First telescopic hose; 8. Nozzle; 9. Serpentine tube; 10. Left mold; 11. Inner cavity; 12. Positioning groove; 13. Feed hole; 14. Funnel; 15. Feeding mechanism; 16. First drive motor; 17. Spiral rod; 18. Control panel; 19. Solenoid valve; 20. Extrusion tube; 21. Right mold; 22. First pneumatic telescopic rod; 23. Positioning rod; 24. Support frame; 25. Second telescopic hose; 26. Second drive motor; 27. First heating block; 28. Stirring rod; 29. ​​Second pneumatic telescopic rod; 30. Baffle; 31. Temperature sensor; 32. Second heating block. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-4 An injection molding machine for producing refrigerator parts includes a mold cavity 4, a feeding mechanism 15, and a right mold 21. A control panel 18 is installed below the feeding mechanism 15. A screw rod 17 is installed on the inner wall of the feeding mechanism 15, and a first drive motor 16 is installed on the outer wall of the feeding mechanism 15 at one end of the screw rod 17. A funnel 14 is connected to one side of the top of the feeding mechanism 15, and a temperature sensor 31 is installed on the other side of the top of the feeding mechanism 15. An extrusion tube 20 is connected to the other side of the feeding mechanism 15, and a solenoid valve 19 is installed on the outer wall of the extrusion tube 20. A right mold 21 is connected to one side, and a feed hole 13 is provided on the inner side of the right mold 21. A left mold 10 is installed on one side of the right mold 21. A first pneumatic telescopic rod 22 is installed on the outer wall of both ends of the left mold 10. A mold groove 4 is provided in the middle of one side of the left mold 10, and a heat-conducting plate 5 is installed on the inner side of the mold groove 4. An inner cavity 11 is provided on one side of the heat-conducting plate 5, and a serpentine tube 9 is installed on the inner wall of the inner cavity 11. Spray nozzles 8 are evenly installed on the outer wall of one side of the serpentine tube 9. A support frame 24 is connected to one side of the left mold 10, and a water tank 3 is installed on one side of the support frame 24.

[0021] The outer wall of the spiral rod 17 is uniformly equipped with second heating blocks 32, and the inner wall below the funnel 14 is uniformly equipped with first heating blocks 27.

[0022] A baffle 30 is installed below the funnel 14, and a second pneumatic telescopic rod 29 is installed on the outer wall of the feeding mechanism 15 on one side of the baffle 30.

[0023] A second drive motor 26 is installed on the inner side above the funnel 14, and the output end of the second drive motor 26 is connected to a stirring rod 28 through a drive shaft;

[0024] Both ends of the right mold 21 are connected to positioning rods 23, and both ends of the left mold 10 are provided with positioning grooves 12 that cooperate with the positioning rods 23.

[0025] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when using this structure, plastic granules are placed into the funnel 14, and the granules are heated and melted by the operation of multiple first heating blocks 27. At the same time, the second drive motor 26 operates to stir the stirring rod 28, making the heating more efficient. After melting into a liquid, the baffle 30 is moved to one side and opened by the second pneumatic telescopic rod 29. Then the liquid enters the feeding mechanism 15 and is fed to one side. It is heated again by multiple second heating blocks 32 inside the feeding mechanism 15 to prevent cooling during the feeding process. The temperature of the liquid is detected by the temperature sensor 31. After the temperature reaches the specified temperature, the temperature sensor 31 sends a signal to the control panel 18. The control panel 18 controls the solenoid valve 19 to open, allowing the liquid to enter the mold cavity 4 for shaping, ensuring the quality of the processed parts.

[0026] Example 2: An output pump 6 is installed at the top of the water tank 3, and a first telescopic hose 7 is connected to one side of the output pump 6. One end of the first telescopic hose 7 is fixedly connected to the serpentine tube 9.

[0027] A second telescopic hose 25 is installed on the inner side below the inner cavity 11, and one end of the second telescopic hose 25 is connected to a heat exchanger 1. A circulation pump 2 is connected to one side of the heat exchanger 1, and one side of the circulation pump 2 is fixedly connected to the water tank 3 through a water pipe.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, when using this structure, the output pump 6 draws cold water from the water tank 3. The cold water enters the serpentine tube 9 through the first telescopic hose 7, and then sprays cold water onto the heat-conducting plate 5 through multiple nozzles 8. The heat-conducting plate 5 absorbs the heat of the molten liquid in the mold cavity 4. By cooling the heat-conducting plate 5, it is easy to quickly cool down the mold parts in the mold cavity 4 and improve the demolding speed.

[0029] Working principle: When using this device, firstly, plastic granules are placed into the funnel 14 to melt. After melting, the second pneumatic telescopic rod 29 moves the baffle 30 to the right, opening the bottom of the funnel 14. The material enters the feeding mechanism 15. The first drive motor 16 rotates the screw rod 17, causing the material to move to the left. Then, it enters the feed hole 13 through the extrusion tube 20 and then enters the mold trough 4 for cooling and shaping. The first pneumatic telescopic rod 22 separates the left mold 10 and the right mold 21, and then the injection molded part in the mold trough 4 is taken out.

[0030] Implementation steps for the first innovation point:

[0031] Step 1: By putting plastic granules into funnel 14, the granules are heated and melted by the operation of multiple first heating blocks 27. At the same time, the second drive motor 26 works to stir the stirring rod 28, making the heating more efficient. After melting into a liquid, the baffle 30 is moved to one side and opened by the second pneumatic telescopic rod 29.

[0032] Step 2: The molten liquid then enters the feeding mechanism 15 and is fed to one side. It is then heated again by multiple second heating blocks 32 inside the feeding mechanism 15 to prevent cooling during the feeding process. The temperature of the molten liquid is detected by the temperature sensor 31. After the temperature reaches the specified temperature, the temperature sensor 31 sends a signal to the control panel 18. The control panel 18 controls the solenoid valve 19 to open, allowing the molten liquid to enter the mold groove 4 for shaping, thus ensuring the quality of the processed parts.

[0033] Implementation steps for the second innovation point:

[0034] The output pump 6 draws cold water from the water tank 3. The cold water enters the serpentine tube 9 through the first telescopic hose 7, and then sprays cold water onto the heat-conducting plate 5 through multiple nozzles 8. The heat-conducting plate 5 absorbs the heat of the molten liquid in the mold cavity 4. By cooling the heat-conducting plate 5, it is easy to quickly cool down the mold parts in the mold cavity 4 and improve the demolding speed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine for refrigerator parts production, comprising a mold cavity (4), a feeding mechanism (15) and a right mold (21), characterized in that: The control panel (18) is installed below the feeding mechanism (15), the screw rod (17) is installed on the inner wall of the feeding mechanism (15), the first driving motor (16) is installed on the outer wall of the screw rod (17) at one end of the feeding mechanism (15), the funnel (14) is connected to one side of the top end of the feeding mechanism (15), the temperature sensor (31) is installed on the other side of the top end of the feeding mechanism (15), the extrusion pipe (20) is connected to the other side of the feeding mechanism (15), the electromagnetic valve (19) is installed on the outer wall of the extrusion pipe (20), the right mold (21) is connected to one side of the extrusion pipe (20), the feeding hole (13) is arranged on the inner side of the right mold (21), the left mold (10) is installed on one side of the right mold (21), the first pneumatic telescopic rod (22) is installed on the outer wall of both ends of the left mold (10), the mold groove (4) is arranged at the middle position of one side of the left mold (10), the heat conduction plate (5) is installed on the inner side of the mold groove (4), the inner cavity (11) is arranged on one side of the heat conduction plate (5), the serpentine pipe (9) is installed on the inner wall of the inner cavity (11), the spray head (8) is uniformly installed on the outer wall of one side of the serpentine pipe (9), the support frame (24) is connected to one side of the left mold (10), and the water tank (3) is installed on one side of the support frame (24).

2. An injection molding machine for refrigerator part production according to claim 1, characterized in that: The second heating block (32) is uniformly installed on the outer wall of the screw rod (17), and the first heating block (27) is uniformly installed on the inner wall below the funnel (14).

3. An injection molding machine for refrigerator part production as claimed in claim 1, characterized in that: The baffle (30) is installed below the funnel (14), and the second pneumatic telescopic rod (29) is installed on the outer wall of one side of the baffle (30) and the feeding mechanism (15).

4. An injection molding machine for refrigerator part production as defined in claim 1, characterized in that: The second driving motor (26) is installed on the inner side above the funnel (14), and the stirring rod (28) is connected to the output end of the second driving motor (26) through a driving shaft.

5. An injection molding machine for refrigerator part production as defined in claim 1, characterized in that: The positioning rod (23) is connected to both ends of one side of the right mold (21), and the positioning groove (12) matched with the positioning rod (23) is arranged on both ends of one side of the left mold (10).

6. An injection molding machine for refrigerator part production as defined in claim 1, characterized in that: The output pump (6) is installed on the top end of the water tank (3), the first telescopic hose (7) is connected to one side of the output pump (6), and one end of the first telescopic hose (7) is fixedly connected with the serpentine pipe (9).

7. The injection molding machine for refrigerator parts production of claim 1, wherein: The second telescopic hose (25) is installed on the inner side below the inner cavity (11), one end of the second telescopic hose (25) is connected with the heat exchanger (1), one side of the heat exchanger (1) is connected with the circulating pump (2), and one side of the circulating pump (2) is fixedly connected with the water tank (3) through a water pipe.

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