Air draft device for high-efficiency production of silica gel wires

Abstract

The utility model discloses an air draft device for high-efficiency production of silica gel wires. The air draft device comprises a seat body, a vacuum container; a vacuum pump; a driving motor; and the rotor is arranged on the seat body and is driven by the driving motor to rotate, so that gas in the vacuum container is pumped out, and bubbles of the silica gel wire are eliminated. According to the utility model, the vacuum pump and the rotor are matched to vacuumize the inner cavity of the vacuum container to be in a negative pressure state, and the high-efficiency driving motor is arranged, so that air and moisture retained in a semi-finished silica gel wire placed in the vacuum container can be vacuumized in a short time; therefore, the foaming problem caused by water evaporation and air preheating expansion in the heat vulcanization process is effectively reduced, and the method can be popularized and applied to various silica gel products. And after air and moisture retained in the semi-finished silica gel wire are pumped out, the adhesive force of silica gel is greatly improved and can be improved by 1-2 times, so that the vulcanization speed is effectively improved, and the production efficiency is promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to silica gel wire rod manufacturing technical field especially a kind of air draft device for the high efficiency production of silica gel wire rod. BACKGROUND

[0002] Silica gel wire rod refers to the wire rod using silica gel and other materials as outer sheath, and is widely used in power supply, household, industrial and other fields due to its wear resistance, fracture resistance, high tensile strength and other characteristics, and is one of the most common wire rod types.

[0003] Air trapped in semi-finished silica gel wire rod during production process of silica gel wire rod is prone to cause air expansion during extrusion molding or vulcanization, resulting in air bubble phenomenon, and subsequent baking vulcanization is required to increase dryness, but excess moisture in semi-finished silica gel wire rod is also prone to produce air bubbles during baking process.

[0004] Common silica gel wire rod production equipment on the market can perform extrusion and vulcanization treatment on wire rod, such as the Chinese utility model patent with patent announcement number CN211578463U discloses a kind of high-efficiency energy-saving new type of silica rubber cable production line, which comprises: reverse wheel device, pay-off device and take-up device;The reverse wheel device and the pay-off device are sequentially provided with a silica rubber extrusion device and at least two groups of double-channel variable-direction hot air drying oven;The pay-off device and the take-up device are provided with a spark test device and a take-up tension device. By adopting double-channel variable-direction hot air vulcanization oven instead of single-channel hot air vulcanization oven, and adopting single-side take-up and pay-off layout, the take-up device and the pay-off device are arranged on one side of the extruder, the quality problem of sheath bulging is solved, and the production efficiency is greatly improved, and the energy consumption is reduced.

[0005] However, the existing high-efficiency energy-saving new type of silica rubber cable production line still has the following disadvantages:

[0006] 1. In the technical solution, after the wire rod is coated with a silica rubber sheath by the silica rubber extrusion device, it enters the double-channel variable-direction hot air drying oven for baking vulcanization, but there is no measure to remove the trapped air and moisture in the silica rubber, so that the trapped air in the semi-finished silica gel wire rod is prone to form air bubbles during extrusion molding, and air bubbles are also prone to occur due to moisture evaporation and air preheating expansion during subsequent baking process, which brings inconvenience to production.

[0007] 2. Since the extrusion pressure of silica gel is naturally small, and silica gel is generally in a cold state during extrusion, it is necessary to achieve the performance requirements of silica gel wire rod by heating vulcanization. In order to ensure that the adhesion of silica gel wire rod meets the requirements, the speed of double-channel variable-direction hot air drying oven for vulcanization must be slowed down, which affects the production efficiency of the entire production line.

[0008] In view of this, the present inventors propose the following technical solutions. Utility model content:

[0009] The utility model discloses a kind of air extraction devices for silica gel wire high-efficiency production, which is to overcome the deficiencies of prior art.

[0010] To solve the above technical problems, the utility model adopts the following technical solutions: an air extraction device for silica gel wire high-efficiency production, comprising: a seat body, a cavity is formed in the seat body; a vacuum container is provided on the seat body and used to place silica gel wire semi-finished products; a vacuum pump is connected to the vacuum container and used to pump gas into the vacuum container; a drive motor is provided in the cavity; a rotor is provided on the seat body and driven to rotate by the drive motor to extract the gas in the vacuum container and eliminate the stagnant air in the silica gel wire semi-finished products.

[0011] Further, in the above technical solution, a vacuum valve is provided on the vacuum container, which can communicate with the inner cavity of the vacuum container.

[0012] Further, in the above technical solution, the vacuum pump is connected to the vacuum container through a connecting pipe, one end of the connecting pipe is connected to the output port of the vacuum pump, and the other end of the connecting pipe is connected to the vacuum valve.

[0013] Further, in the above technical solution, a transmission mechanism is provided between the rotor and the drive motor for transmission, which includes a first transmission pulley provided on the output shaft of the drive motor, a second transmission pulley provided on the main shaft of the rotor, and a plurality of transmission belts connected between the first transmission pulley and the second transmission pulley.

[0014] Further, in the above technical solution, a plurality of first clamping grooves are formed on the first transmission pulley for the transmission belts to pass through, and a plurality of second clamping grooves are formed on the second transmission pulley for the transmission belts to pass through.

[0015] Further, in the above technical solution, the number of transmission belts is four, and correspondingly, the number of first clamping grooves and second clamping grooves is also four; the size of the second transmission pulley is greater than the size of the first transmission gear.

[0016] Further, in the above technical solution, a sealing end cover is provided at the end of the vacuum container, which can be opened and closed relative to the vacuum container; the vacuum container is cylindrical, and a fixing ring is further provided on the vacuum container to prevent loosening, and a locking bolt is inserted into the fixing ring for locking.

[0017] Further, in the above technical solution, the rotor is provided with a gas outlet gap for discharging gas in the vacuum container outward.

[0018] Further, in the above technical solution, the seat body is provided with a support part protruding and shaped for supporting the vacuum container, and the support part is triangular; the driving motor is provided with a plurality of first heat dissipation strips for heat dissipation; and the vacuum pump is provided with a plurality of second heat dissipation strips for heat dissipation.

[0019] Further, in the above technical solution, the diameter of the vacuum container is 50-500 mm; the vacuum container is made of 6063 or 6082 aluminum alloy; and the working pressure of the vacuum container is-0.1 MPa.

[0020] After the above technical solution is adopted, the present application has the following beneficial effects compared with the prior art: in the present application, the inner cavity of the vacuum container is extracted into a negative pressure state by the cooperation of the vacuum pump and the rotor, and is provided with a high-efficiency driving motor, so that the trapped air and moisture in the silica gel wire semi-finished product placed in the vacuum container can be extracted in a short time, thereby effectively reducing the problems of moisture evaporation and air preheating expansion during the hot vulcanization process, and the application of the present application to various silica gel products is promoted. In addition, after the trapped air and moisture in the silica gel wire semi-finished product are extracted by the present application, the adhesion of the silica gel is greatly improved, the adhesion can be increased by 1-2 times, and the vulcanization speed is effectively improved, thereby promoting the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic diagram of the three-dimensional structure of the present application;

[0022] Fig. 2 is a schematic diagram of the three-dimensional structure of the present application from another perspective;

[0023] Fig. 3 is a schematic diagram of the structure of the motor in the present application;

[0024] Fig. 4 is a schematic diagram of the structure of the vacuum pump in the present application. DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with specific embodiments and drawings.

[0026] See Figs. 1 to 4The utility model discloses a kind of suction devices for silica gel wire high-efficiency production, it includes: seat body 10, a cavity 11 is shaped in the seat body 10;Vacuum container 20, which is arranged on the seat body 10 and is used to place silica gel wire semi-finished product;Vacuum pump 30, which is connected with the vacuum container 20 and is used to pump gas into the vacuum container 20;Driving motor 40, which is arranged in the cavity 11;Rotor 50, which is arranged on the seat body 10 and is driven to rotate by the driving motor 40, to extract the gas in vacuum container 20, eliminate the air retention in silica gel wire semi-finished product.

[0027] In the utility model, the inner cavity of the vacuum container 2 is extracted into a negative pressure state by the cooperation of the vacuum pump 30 and the rotor 50, and is equipped with a high-efficiency driving motor 40, so that the air retention and moisture in the silica gel wire semi-finished product placed in the vacuum container 2 can be extracted in a short time, thereby effectively reducing the problems of moisture evaporation and air preheating expansion during hot vulcanization, and the utility model can be applied to various silica gel products. In addition, after the air retention and moisture in the silica gel wire semi-finished product are extracted by the utility model, the adhesion of the silica gel is greatly improved, the adhesion can be increased by 1-2 times, and the vulcanization speed is effectively improved, thereby promoting the production efficiency.

[0028] The vacuum container 20 is provided with a vacuum valve 210 that can communicate with the inner cavity of the vacuum container 20. The vacuum pump 30 communicates with the vacuum container 20 through a connecting pipe 70, one end of the connecting pipe 70 is connected to the output port of the vacuum pump 30, and the other end of the connecting pipe 70 is connected to the vacuum valve 210. Here, the vacuum container 20 communicates with the vacuum pump 30 through the vacuum valve 210 and the connecting pipe 70, the vacuum container 20 is in a cylindrical shape, and the vacuum valve 210 is arranged at one end of the vacuum container 20, so as to more fully extract the vacuum container 20.

[0029] A transmission mechanism 80 is arranged between the rotor 50 and the driving motor 40 for transmission, the transmission mechanism 80 includes a first transmission pulley 810 arranged on the output shaft of the driving motor 40, a second transmission pulley 820 arranged on the main shaft of the rotor 50, and a plurality of transmission belts 830 connected between the first transmission pulley 810 and the second transmission pulley 820. Here, preferably, the size of the first transmission pulley 810 is half of the size of the second transmission pulley 820, so as to improve the efficiency of the rotor 50. Of course, the transmission mechanism 80 can also be replaced by a worm gear structure, a gear transmission structure or other transmission structures.

[0030] The first transmission rotating wheel 810 is formed with a plurality of first clamping slots 811 for the transmission belt 830 to pass through, and the second transmission rotating wheel 820 is formed with a plurality of second clamping slots 821 for the transmission belt 830 to pass through. The number of the transmission belts 830 is four, and the number of the first clamping slots 811 and the second clamping slots 821 is also four. The size of the second transmission rotating wheel 820 is greater than that of the first transmission rotating wheel 810. Here, the four transmission belts 830 can ensure the stability of the equipment during operation and improve the transmission effect. Of course, the number of the transmission belts 830 can be increased according to actual needs.

[0031] The end of the vacuum container 20 is provided with a sealing end cover 220 which can be opened and closed relative to the vacuum container 20. The vacuum container 20 is in a cylindrical shape, and a fixing ring 230 for preventing loosening is further sleeved on the vacuum container 20, and a locking bolt 240 for locking is inserted into the fixing ring 230. Here, the sealing end cover 220 of the vacuum container 20 can be opened, and the silica gel wire semi-finished product is put into the vacuum container 20, and then the vacuum container 20 containing the silica gel wire semi-finished product is vacuumized by cooperation of the vacuum pump 30 and the rotor 50. The air and excess moisture remaining in the silica gel wire semi-finished product will overflow and be pumped away by the vacuum pump 30, thereby effectively reducing the problems of water evaporation and air preheating expansion during hot vulcanization, which can cause blistering.

[0032] The rotor 50 is provided with a gas outlet gap 510 for the gas in the vacuum container 20 to be discharged outward.

[0033] The seat body 10 is protrusively formed with a supporting portion 130 for supporting the vacuum container 20, and the supporting portion 130 is in a triangular shape. The driving motor 40 is arranged with a plurality of first heat dissipation strips 410 for heat dissipation. The vacuum pump 30 is arranged with a plurality of second heat dissipation strips 420 for heat dissipation. Here, a driving motor gasket 430 for buffering is further arranged below the driving motor 40.

[0034] In this embodiment, preferably, the working pressure of the vacuum container 20 is -0.1 MPa, and the bubbles in the silica gel are effectively extracted.

[0035] In this embodiment, preferably, the vacuum container 20 is made of 6063 or 6082 aluminum alloy, which can effectively prevent the vacuum container 20 from being corroded and can be used repeatedly for a long time.

[0036] In this embodiment, preferably, the diameter of the vacuum container 20 is 50-500 mm, which can effectively extract the air in the silica gel wire semi-finished product and load the silica gel wire semi-finished product with appropriate capacity.

[0037] In summary, in the utility model, through the cooperation of vacuum pump 30 and rotor 50, the inner cavity of vacuum container 2 is extracted into a negative pressure state, and is equipped with high-efficiency driving motor 40, and then the air and moisture remaining in the silica gel wire semi-finished product placed in the vacuum container 2 can be extracted in a short time, thereby effectively reducing the problems of moisture evaporation and air preheating expansion during the hot vulcanization process, and the utility model can be popularized and applied to various silica gel products. In addition, after the air and moisture remaining in the silica gel wire semi-finished product are extracted through the treatment of the utility model, the adhesion of silica gel is greatly improved, the adhesion can be improved by 1-2 times, and the vulcanization speed is effectively improved, and the production efficiency is promoted.

[0038] Of course, the above only for the specific embodiments of the utility model, and not to limit the utility model implementation range, all equivalent changes or modifications made according to the structure, features and principles of the utility model patent application scope described in the utility model patent application scope should be included.

Claims

1. A suction device for high efficiency production of silica gel wire, characterized in that, include: A seat body (10), wherein a cavity (11) is formed in the seat body (10); A vacuum container (20) is provided on the base (10) and is used to place the semi-finished silicone wire product; a vacuum pump (30), the vacuum pump (30) being connected to the vacuum container (20) and being used to pump gas into the vacuum container (20); a driving motor (40) disposed in the cavity (11); The rotor (50) is arranged on the base (10) and is driven to rotate by the driving motor (40) to extract the gas in the vacuum container (20) and eliminate the trapped air in the semi-finished silicone wire product.

2. The induced draft device for high efficiency production of silica gel wire according to claim 1, characterized in that: The vacuum container (20) is provided with a vacuum valve (210) capable of communicating with the inner cavity of the vacuum container (20).

3. The induced draft device for high efficiency production of silica gel wire according to claim 2, characterized in that: The vacuum pump (30) is connected to the vacuum container (20) via a connecting pipe (70), one end of the connecting pipe (70) is connected to the output port of the vacuum pump (30), and the other end of the connecting pipe (70) is connected to the vacuum valve (210).

4. The induced draft device for high efficiency production of silica gel wire according to claim 1, characterized in that: A transmission mechanism (80) for transmission is provided between the rotor (50) and the drive motor (40), and the transmission mechanism (80) includes a first transmission wheel (810) provided on the output shaft of the drive motor (40), a second transmission wheel (820) provided on the main shaft of the rotor (50), and a plurality of transmission belts (830) connected between the first transmission wheel (810) and the second transmission wheel (820).

5. The induced draft device for high efficiency production of silica gel wire according to claim 4, characterized in that: The first transmission wheel (810) is formed with a plurality of first slots (811) for the transmission belt (830) to pass around, and the second transmission wheel (820) is formed with a plurality of second slots (821) for the transmission belt (830) to pass around.

6. The induced draft device for high efficiency production of silica gel wire according to claim 5, characterized in that: The number of the transmission belts (830) is four, and correspondingly, the number of the first card slots (811) and the second card slots (821) is also four; the size of the second transmission wheel (820) is larger than that of the first transmission wheel (810).

7. The air extraction device for high efficiency production of silica gel wire according to any one of claims 1-6, characterized in that: The end of the vacuum container (20) is provided with a sealing end cover (220) that can be opened and closed relative to the vacuum container (20); the vacuum container (20) is cylindrical, and the vacuum container (20) is also provided with a fixing ring (230) for preventing loosening, and a locking bolt (240) for locking is inserted into the fixing ring (230).

8. The induced draft device for high efficiency production of silica gel wire according to claim 7, characterized in that: The rotor (50) is provided with a gas outlet gap (510) for allowing gas in the vacuum container (20) to be discharged to the outside.

9. The induced draft device for high efficiency production of silica gel wire according to claim 7, characterized in that: A support portion (130) for supporting the vacuum container (20) is protruding from the base (10), and the support portion (130) is triangular in shape; a plurality of first heat dissipation strips (410) for dissipating heat are arranged and distributed around the driving motor (40); and a plurality of second heat dissipation strips (420) for dissipating heat are arranged and distributed around the vacuum pump (30).

10. The air extraction device for high efficiency production of silica gel wire according to any one of claims 8-9, characterized in that: The diameter of the vacuum container (20) is 50-500 mm; the vacuum container (20) is made of 6063 or 6082 aluminum alloy; the working pressure of the vacuum container (20) is -0.1 MPa.

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