A rubber injection molding machine

Abstract

This utility model discloses a rubber injection molding machine, including a barrel with double-layered insulation layers forming a cavity between them, and a heating wire inside the cavity. It also includes a heat-insulating protective sleeve, which is detachably connected to two arc-shaped plates. A cooling pipe is coiled inside both arc-shaped plates, and a water inlet connected to one end of the cooling pipe is located on the outer side of arc-shaped plate one. Each end of the cooling pipe is equipped with a ring-shaped silicone gasket. This utility model adds a easily detachable, split-type heat-insulating protective sleeve to the outside of the barrel, preventing the barrel from continuously radiating heat during operation, thus avoiding accidental burns or heat conduction to other machine parts causing damage.

Description

Technical Field

[0001] This utility model relates to the field of rubber processing technology, specifically to a rubber injection molding machine. Background Technology

[0002] Rubber injection molding is a molding process that processes rubber raw materials into rubber products through injection. During processing, rubber raw materials (such as natural rubber and synthetic rubber) are mixed evenly with various compounding agents (such as vulcanizing agents, accelerators, and fillers) to form a rubber compound suitable for injection molding. The rubber compound is placed in the barrel of an injection molding machine, softened by heating, and then injected into a preheated mold cavity at a certain pressure and speed using the screw or plunger of the injection molding machine. Within the mold cavity, the rubber compound undergoes a vulcanization reaction under the influence of heat and pressure, gradually solidifying and forming a rubber product with a specific shape and properties.

[0003] The barrel is an important component of a rubber injection molding machine. It is used to temporarily store and heat the rubber material, and then inject the rubber material into the machine body under the pushing of the injection screw. In the existing technology, an electric heating coil is wound inside the barrel wall to maintain the fluidity and adhesion of the internal rubber material. However, after long-term use, the outer wall of the barrel becomes hot, and the heat is conducted to other parts, which can easily damage them. In addition, the safety is low, and there is room for technical improvement. Utility Model Content

[0004] This invention aims to solve the technical problem of the outer wall of the barrel becoming hot after prolonged use, and provides a rubber injection molding machine.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a rubber injection molding machine, including a machine body, a control box is provided on one side of the machine body, and a molding component is provided on the machine body; a material cylinder is provided on the control box, and the discharge end of the material cylinder extends into the molding component; protective ends are provided on both outer sides of the material cylinder; the material cylinder includes a double-layer insulation layer, and a cavity is formed between the double-layer insulation layer, and a heating wire is provided in the cavity;

[0006] It also includes a heat insulation protective sleeve; the heat insulation protective sleeve is detachably connected by an arc plate one and an arc plate two; a cooling pipe is coiled inside the arc plate one and the arc plate two, and a water inlet connected to one end of the cooling pipe is provided on the outer side of the arc plate one; the ends of the cooling pipe are all provided with annular silicone gaskets.

[0007] Furthermore, one end of the material cylinder is connected to a motor, and the output end of the motor extends into the material cylinder and is provided with an injection screw; the end of the material cylinder is provided with a bearing that is rotatably connected to the output shaft of the motor.

[0008] Furthermore, the heating wire is coiled in a serpentine pattern within the cavity.

[0009] Furthermore, each of the two opposite sides of the arc-shaped plate one and arc-shaped plate two is provided with a mounting strip, and the opposite mounting strips are connected by several bolts.

[0010] Furthermore, both the first and second curved plates are provided with U-shaped handles, and the handles are made of wood.

[0011] Furthermore, both the outer sides of the first and second arc-shaped plates are heat insulation layers, and the heat insulation layers are made of heat insulation composite materials.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] A removable, split-type heat insulation protective sleeve is added to the outside of the barrel to prevent the barrel from continuously radiating heat outward during operation, which could lead to accidental burns or heat conduction to other parts of the machine and cause damage.

[0014] Furthermore, the heat insulation protective sleeve is equipped with cooling pipes, which can quickly assist in cooling the barrel after operation stops, further avoiding adverse consequences caused by excessive barrel temperature; in addition, the cooling pipes can also work with the heating wires to control and adjust the temperature during machine operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the material cylinder and heat insulation protective sleeve of this utility model.

[0017] Figure 3 This is a schematic diagram of the material cylinder and heat insulation protective sleeve of this utility model. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the two-section structure of the arc-shaped plate of this utility model.

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the material cylinder of this utility model.

[0020] As shown in the figure: 1. Machine body, 2. Control box, 3. Molding component, 4. Material cylinder, 5. Bearing, 6. End guard, 7. Insulation layer, 8. Heating wire, 9. Arc plate one, 10. Arc plate two, 11. Mounting strip, 12. Bolt, 13. Handle, 14. Cooling pipe, 15. Water inlet, 16. Silicone gasket, 17. Heat insulation layer. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Example 1, in conjunction with Appendix Figure 1A rubber injection molding machine includes a machine body 1, a control box 2 on one side of the machine body 1, and a molding component 3 on the machine body 1; the molding of rubber material is achieved through the machine body 1, the control box 2, and the molding component 3.

[0023] Combined with appendix Figure 1 , 2 3. The control box 2 is equipped with a material cylinder 4. The discharge end of the material cylinder 4 extends into the molding component 3. The material cylinder 4 is also equipped with a glue inlet. One end of the material cylinder 4 is connected to a motor. The output end of the motor extends into the material cylinder 4 and is equipped with an injection screw. The end of the material cylinder 4 is equipped with a bearing 5 that is rotatably connected to the output shaft of the motor. By rotating the injection screw, the glue in the material cylinder 4 is pushed out while being sheared and mixed, and injected into the machine body 1.

[0024] In addition, protective ends 6 are provided on both outer sides of the barrel 4. The protective ends 6 are used to strengthen the structural strength of the ends of the barrel 4. The protective ends 6 are made of materials with poor thermal conductivity, such as composite rubber or polyvinyl chloride, which not only have a heat insulation effect but also a heat insulation function. The barrel 4 includes a double-layer insulation layer 7, with a cavity formed between the double-layer insulation layer 7. A heating wire 8 is placed in the cavity. The heating wire 8 is coiled in a serpentine manner in the cavity. The rubber material is heated through the heating wire 8 to keep it fluid and easy to push out. The insulation layer 7 can be made of fiber material. The gaps between the fibers are relatively large, which hinders heat transfer and has poor thermal conductivity, resulting in good heat insulation performance. At the same time, the poor thermal conductivity of air makes the cavity have good heat insulation performance.

[0025] Combined with appendix Figure 2 , 3 4, 5, also includes a heat insulation protective sleeve; the heat insulation protective sleeve is detachably connected by an arc-shaped plate 9 and an arc-shaped plate 10; specifically, the opposite sides of the arc-shaped plate 9 and the arc-shaped plate 10 are provided with mounting strips 11, and the opposite mounting strips 11 are connected by several bolts 12, so that the heat insulation protective sleeve is easy to install and maintain.

[0026] Based on the above structure, a cooling pipe 14 is coiled together inside the arc-shaped plate 9 and the arc-shaped plate 10. An inlet 15 connected to one end of the cooling pipe 14 is provided on the outside of the arc-shaped plate 9, and an outlet is provided at the other end of the cooling pipe 14 extending out of the arc-shaped plate 10. Both ends of the cooling pipe 14 are provided with annular silicone gaskets 16. The silicone gaskets 16 ensure that the opposite ends of the cooling pipe 14 are not prone to leakage after the arc-shaped plates 9 and 10 are installed, providing good sealing. Thus, through the circulation of coolant within the cooling pipe 14, the material cylinder 4 can be cooled after operation, avoiding adverse consequences caused by excessively high temperatures in the material cylinder 4. In addition, the cooling pipe 14 can also work with the heating wire 8 for temperature control and adjustment during machine operation, preventing excessively high temperatures from causing thermal decomposition of the rubber compound under continuous heating.

[0027] In addition, the outer sides of both the first curved plate 9 and the second curved plate 10 are heat insulation layers 17. The heat insulation layer 17 is made of heat insulation composite material, which can be made of materials such as glass fiber as reinforcing phase and compounded with matrix materials such as resin. It not only has good heat insulation performance, but also ensures a certain structural strength. Both the first curved plate 9 and the second curved plate 10 are equipped with U-shaped handles 13. The handles 13 are made of wood. Wood has poor thermal conductivity, which can reduce heat transfer when installing or removing the heat insulation protective sleeve and facilitate the application of force.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A rubber injection molding machine, comprising a machine body (1), a control box (2) provided on one side of the machine body (1), and a molding assembly (3) provided on the machine body (1); a material cylinder (4) provided on the control box (2), the discharge end of the material cylinder (4) extending into the molding assembly (3); characterized in that: The material cylinder (4) has protective end (6) on both outer sides; the material cylinder (4) includes a double-layer insulation layer (7), and a cavity is formed between the double-layer insulation layer (7), and a heating wire (8) is placed in the cavity; It also includes a heat insulation protective sleeve; the heat insulation protective sleeve is detachably connected by an arc plate one (9) and an arc plate two (10); a cooling pipe (14) is coiled inside the arc plate one (9) and the arc plate two (10), and an inlet (15) connected to one end of the cooling pipe (14) is provided on the outside of the arc plate one (9); and a circular silicone gasket (16) is provided at the port of the cooling pipe (14).

2. The rubber injection molding machine according to claim 1, characterized in that: One end of the material cylinder (4) is connected to a motor, and the output end of the motor extends into the material cylinder (4) and is provided with an injection screw; the end of the material cylinder (4) is provided with a bearing (5) that is rotatably connected to the output shaft of the motor.

3. The rubber injection molding machine according to claim 1, characterized in that: The heating wire (8) is coiled in a serpentine shape inside the cavity.

4. A rubber injection molding machine according to claim 1, characterized in that: The two sides of the arc plate one (9) and arc plate two (10) are provided with mounting strips (11), and the mounting strips (11) are connected by several bolts (12).

5. A rubber injection molding machine according to claim 1, characterized in that: Both the first arc plate (9) and the second arc plate (10) are provided with U-shaped handles (13), and the handles (13) are made of wood.

6. A rubber injection molding machine according to claim 1, characterized in that: The outer sides of the first arc plate (9) and the second arc plate (10) are both heat insulation layers (17), and the heat insulation layers (17) are made of heat insulation composite materials.

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