Vacuum pumping structure of rubber processing vulcanizing machine

Abstract

The utility model discloses a rubber processing vulcanizer vacuumizing structure, which relates to the technical field of rubber processing and comprises a base, a processing box is fixedly arranged at the top of the base, a heat dissipation box is connected to the outer wall of the processing box, an air exhaust hole is formed in the inner wall of the processing box, and the air exhaust hole is communicated with the heat dissipation box. A first exhaust pipe is fixed to the position, corresponding to the exhaust hole, of the outer wall of the processing box, a branch pipe is fixedly connected to the first exhaust pipe, control valves are arranged on the first exhaust pipe and the branch pipe, a connecting pipe is fixed to the end of the first exhaust pipe, threads are formed in the inner wall of the connecting pipe, and a circular truncated cone is arranged in the connecting pipe; an air bag is fixed to the circular truncated cone, a sealing ring is fixed to the air bag, the air bag is in threaded connection with a second exhaust pipe through an internal thread of a connecting pipe, the air bag is extruded after connection is completed, the air bag is compressed to generate recovery thrust, the sealing ring and the second exhaust pipe are pushed to be connected more tightly, and air tightness is kept; and gaps among the threads can be reduced, so that the connection is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, in particular to a vacuum pumping structure of a rubber processing vulcanizer. Background Art

[0002] A vulcanizer is a machine for vulcanizing various rubber and plastic products, with functions such as timing mold clamping, automatic pressure compensation, automatic temperature control, automatic timing, and alarm when the time is up. Vulcanizers are divided into three forms: electric heating, steam heating, and heat transfer oil heating. Vulcanized rubber refers to rubber that has been vulcanized and has characteristics such as non-stickiness and non-breakability. Most rubber products are made of this kind of rubber. It is also called cured rubber, commonly known as rubber or rubber sheet. The general term for rubber materials after vulcanization processing. After vulcanization, a three-dimensional structure is formed inside the raw rubber, with high elasticity, heat resistance, tensile strength, and insolubility in organic solvents. The vast majority of rubber products are vulcanized rubber.

[0003] However, the existing vacuum pumping device may cause the connection between the two pipes to gradually loosen after vacuum pumping, resulting in poor airtightness, inability to switch between a vacuum environment and a non-vacuum environment during the vulcanization process, and poor heat dissipation, making it impossible to dissipate heat and cool down while maintaining the vacuum state. Therefore, a vacuum pumping structure for a rubber processing vulcanizer is needed to solve the above technical problems. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a vacuum pumping structure for a rubber processing vulcanizer, which can effectively solve the technical problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A vacuum pumping structure for a rubber processing vulcanizer includes a base. A processing box is fixedly arranged on the top of the base. A heat dissipation box is connected to the outer wall of the processing box. An air extraction hole is opened on the inner wall of the processing box. A first air extraction pipe is fixed at the outer wall of the processing box corresponding to the air extraction hole. A branch pipe is fixedly connected to the first air extraction pipe. Control valves are arranged on both the first air extraction pipe and the branch pipe. A connecting pipe is fixed at the end of the first air extraction pipe. A thread is opened on the inner wall of the connecting pipe. A frustum is arranged inside the connecting pipe. An airbag is fixed on the frustum. A sealing ring is fixed on the airbag.

[0007] As a further solution of the utility model, a second air extraction pipe is threadedly connected inside the connecting pipe, and the end of the second air extraction pipe is fixedly connected to an air extractor.

[0008] As a further solution of the utility model, a plurality of heat conducting rods are arranged inside the processing box, and the other ends of the heat conducting rods penetrate through the processing box and extend into the heat dissipation box.

[0009] As a further solution of the present utility model, a plurality of heat dissipation fins are fixed on the part of the heat conduction rod located inside the heat dissipation box.

[0010] As a further solution of the present utility model, an air outlet is provided at the top of the heat dissipation box. A plurality of connecting rods are fixed on the inner wall of the air outlet. A servo motor is fixed between the connecting rods. A rotating shaft is fixedly connected to the servo motor. A plurality of fan blades are fixedly provided on the shaft body of the rotating shaft.

[0011] As a further solution of the present utility model, a cold air blower is fixedly provided on the inner wall of the heat dissipation box above the heat dissipation fins.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The second suction pipe is connected by the internal thread of the connecting pipe. After the connection is completed, the sealing ring can be pressed to squeeze the airbag, causing it to deform. At the same time, the airbag generates a restoring thrust to push the sealing ring, making its connection with the second suction pipe closer to maintain airtightness, and the gap between the threads can be reduced to make the connection of the second suction pipe more stable.

[0014] 2. The heat conduction rod absorbs the heat in the processing box and conducts it into the heat dissipation box, and then it is absorbed by the heat dissipation fins and dissipated again. The servo motor drives the rotating shaft to rotate, driving the fan blades to rotate to discharge the heat to the outside. At the same time, the cold air blower blows cold air to accelerate the heat dissipation process and can press the hot air upward to speed up the blowing process, and can prevent the hot air outside from flowing back. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of a vacuum pumping structure of a rubber processing vulcanizer of the present utility model;

[0016] Figure 2 It is an enlarged view of the driving brush rod of a vacuum pumping structure of a rubber processing vulcanizer of the present utility model;

[0017] Figure 3 It is an enlarged view of the shock absorber seat of a vacuum pumping structure of a rubber processing vulcanizer of the present utility model;

[0018] Figure 4 It is a top view of the workbench of a vacuum pumping structure of a rubber processing vulcanizer of the present utility model;

[0019] Figure 5 It is a schematic diagram of the air outlet of a vacuum pumping structure of a rubber processing vulcanizer of the present utility model.

[0020] In the figure: 1, base; 2, processing box; 3, heat dissipation box; 4, air extraction hole; 5, first air extraction pipe; 6, branch pipe; 7, control valve; 8, connecting pipe; 9, frustum; 10, airbag; 11, sealing ring; 12, second air extraction pipe; 13, air extractor; 14, heat conduction rod; 15, heat dissipation fins; 16, air outlet; 17, connecting rod; 18, servo motor; 19, rotating shaft; 20, fan blade; 21, cold air blower. Specific implementation manner

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1-5 shown, a vacuum pumping structure for a rubber processing vulcanizer includes a base 1. A processing box 2 is fixedly provided at the top of the base 1. A heat dissipation box 3 is connected to the outer wall of the processing box 2. An air extraction hole 4 is opened in the inner wall of the processing box 2. A first air extraction pipe 5 is fixedly provided at the outer wall of the processing box 2 corresponding to the air extraction hole 4. A branch pipe 6 is fixedly connected to the first air extraction pipe 5. Control valves 7 are provided on both the first air extraction pipe 5 and the branch pipe 6. A connecting pipe 8 is fixedly provided at the end of the first air extraction pipe 5. A thread is opened in the inner wall of the connecting pipe 8. A frustum 9 is provided in the connecting pipe 8. An airbag 10 is fixedly provided on the frustum 9. A sealing ring 11 is fixedly provided on the airbag 10. After the airbag 10 is compressed, it will generate a restoring thrust to push the sealing ring 11 to contact the second air extraction pipe 12 more tightly, and can reduce the thread gap to make the connection between the second air extraction pipe 12 and the internal thread of the connecting pipe 8 more stable.

[0023] In this embodiment, a second air extraction pipe 12 is threadedly connected in the connecting pipe 8. The end of the second air extraction pipe 12 is fixedly connected to an air extractor 13. The air extractor 13 performs a vacuum pumping operation on the processing box 2.

[0024] In this embodiment, a plurality of heat conduction rods 14 are provided in the processing box 2. The other end of the heat conduction rod 14 passes through the processing box 2 and extends into the heat dissipation box 3. The heat conduction rod 14 is located at a position near the top of the processing box 2. Since heat rises, the heat conduction rod 14 can better absorb heat at this time.

[0025] In this embodiment, a plurality of heat dissipation fins 15 are fixedly provided on the part of the heat conduction rod 14 located in the heat dissipation box 3. The heat dissipation fins 15 can absorb the heat on the heat conduction rod 14 and disperse the heat.

[0026] In this embodiment, an air outlet 16 is provided at the top of the heat dissipation box 3. A plurality of connecting rods 17 are fixed on the inner wall of the air outlet 16. A servo motor 18 is fixed between the connecting rods 17. A rotating shaft 19 is fixedly connected to the servo motor 18. A plurality of fan blades 20 are fixedly provided on the shaft body of the rotating shaft 19. The servo motor 18 can drive the rotating shaft 19 to rotate, and then drive the fan blades 20 thereon to rotate, so as to blow the heat in the heat dissipation box 3 to the outside.

[0027] In this embodiment, a cold air blower 21 is fixedly provided above the heat dissipation fins 15 on the inner wall of the heat dissipation box 3. The cold air blower 21 blows cold air to accelerate the heat dissipation process, can press the hot air upward to accelerate the blowing process, and can prevent the external hot air from flowing back.

[0028] It should be noted that the present utility model is a vacuum pumping structure for a rubber processing vulcanizer. When in use, the second suction pipe 12 is connected through the internal thread of the connecting pipe 8. After the connection is completed, the sealing ring 11 can be pressed to squeeze the airbag 10, causing it to deform. At the same time, the airbag 10 generates a restoring thrust to push the sealing ring 11, making its connection with the second suction pipe 12 closer to maintain airtightness, and can reduce the gap between the threads to make the connection of the second suction pipe 12 more stable. The heat conducting rod 14 absorbs the heat in the processing box 2 and conducts it into the heat dissipation box 3, and then is absorbed by the heat dissipation fins 15 and dissipated again. The servo motor 18 drives the rotating shaft 19 to rotate, driving the fan blades 20 to rotate to discharge the heat to the outside. At the same time, the cold air blower 21 blows cold air to accelerate the heat dissipation process, can press the hot air upward to accelerate the blowing process, and can prevent the external hot air from flowing back.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum pumping structure for a rubber processing vulcanizing machine, comprising a base (1), characterized in that: A processing box (2) is fixedly provided on the top of the base (1), a heat dissipation box (3) is connected to the outer wall of the processing box (2), an exhaust hole (4) is provided on the inner wall of the processing box (2), a first exhaust pipe (5) is fixedly provided on the outer wall of the processing box (2) corresponding to the exhaust hole (4), a branch pipe (6) is fixedly connected to the first exhaust pipe (5), a control valve (7) is provided on both the first exhaust pipe (5) and the branch pipe (6), a connecting pipe (8) is fixedly provided at the end of the first exhaust pipe (5), the inner wall of the connecting pipe (8) is threaded, a truncated cone (9) is provided inside the connecting pipe (8), an air bag (10) is fixed on the truncated cone (9), and a sealing ring (11) is fixed on the air bag (10).

2. A rubber processing vulcanizing machine vacuum pumping structure according to claim 1, characterized in that: The connecting pipe (8) is internally threadedly connected to a second air extraction pipe (12), and the end of the second air extraction pipe (12) is fixedly connected to an air extractor (13).

3. A rubber processing vulcanizing machine vacuum pumping structure according to claim 1, characterized in that: A plurality of heat-conducting rods (14) are arranged in the processing box (2), and the other ends of the heat-conducting rods (14) pass through the processing box (2) and extend into the heat dissipation box (3).

4. A rubber processing vulcanizing machine vacuum pumping structure according to claim 3, characterized in that: A plurality of heat dissipation fins (15) are fixed on the portion of the heat conducting rod (14) located inside the heat dissipation box (3).

5. The vacuum pumping structure of a rubber processing vulcanizing machine according to claim 1, characterized in that: An air outlet (16) is provided at the top of the heat dissipation box (3), a plurality of connecting rods (17) are fixed on the inner wall of the air outlet (16), a servo motor (18) is fixed between the connecting rods (17), a rotating shaft (19) is fixedly connected to the servo motor (18), and a plurality of fan blades (20) are fixedly provided on the shaft body of the rotating shaft (19).

6. A rubber processing vulcanizing machine vacuum pumping structure according to claim 4, characterized in that: A cold air blower (21) is fixedly provided on the inner wall of the heat dissipation box (3) above the heat dissipation fins (15).

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