Extrusion device for rubber processing

Abstract

The utility model relates to the technical field of rubber processing, and discloses an extrusion device for rubber processing, which comprises a double-roller extrusion device, two rotating shafts are mounted on the double-roller extrusion device, extrusion rollers are mounted on the two rotating shafts, a motor is mounted on the double-roller extrusion device, the two extrusion rollers are driven by the motor, and the extrusion rollers are driven by the motor. The two extrusion rollers are of hollow structures, cooling liquid is accumulated in the two extrusion rollers, cooling assemblies are arranged on the two extrusion rollers, and an air supply assembly and an air injection assembly are arranged on the double-roller extrusion device. When the extrusion roller is used, cooling liquid circulates in the extrusion roller, so that the temperature of the extrusion roller is reduced, the temperature of a rubber material is further reduced, the high-temperature rubber material is effectively prevented from being adhered to the extrusion roller, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, in particular to an extrusion device for rubber processing. Background Art

[0002] The extruder used in rubber processing is a device used to extrude rubber raw materials or mixtures into a specific shape.

[0003] The double-roll extrusion device is used to extrude rubber into sheets. The double-roll extrusion device in the prior art does not have the function of cooling the rubber. The high-temperature rubber material is easy to adhere to the extrusion roller, resulting in increased downtime in the production process and difficulty in cleaning, which seriously affects the production efficiency and product quality. In addition, the adhesion of rubber materials at high temperatures not only affects the service life of the extrusion roller, but may also cause equipment failure, increasing equipment maintenance costs and downtime.

[0004] Therefore, it is necessary to design a rubber processing extrusion device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an extrusion device for rubber processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rubber processing extrusion device comprises a pair of roller extrusion devices, two rotating shafts are mounted on the pair of roller extrusion devices, extrusion rollers are mounted on the two rotating shafts, a motor is mounted on the pair of roller extrusion devices, the two extrusion rollers are driven by the motor, the two extrusion rollers are hollow in structure, coolant is accumulated inside the two extrusion rollers, cooling components are arranged on the two extrusion rollers, and an air supply component and an air injection component are arranged on the pair of roller extrusion devices.

[0008] As a preferred technical solution of the utility model, the cooling assembly includes a cooling pipe, two connecting pipes and two rotating joints. The cooling pipe is fixed inside the extrusion roller and immersed in the coolant. The two rotating joints are respectively installed at both ends of the rotating shaft. One end of the two connecting pipes is respectively connected to the two ends of the cooling pipe, and the other end of the two connecting pipes is respectively connected to the two rotating joints.

[0009] As a preferred technical solution of the utility model, the air supply assembly includes an eccentric wheel, a sealing cylinder, a sliding plug, a spring, a connecting rod, two air pipes and two one-way valves. The eccentric wheel is fixedly sleeved on one of the rotating shafts, the sealing cylinder is fixed on the roller extrusion device, the sliding plug seal is slidably connected to the inner surface of the sealing cylinder, the spring is arranged between the sealing cylinder and the sliding plug, one end of the connecting rod is fixed on the sliding plug, and the other end extends to the outside of the sealing cylinder, the two air pipes are connected to the sealing cylinder, the two one-way valves are respectively installed on the two air pipes, and one of the air pipes is connected to one of the rotating joints on the two rotating shafts.

[0010] As a preferred technical solution of the utility model, the jet assembly includes a jet pipe and a plurality of jet ports, the jet pipe is fixed on the double-roll extrusion device, the plurality of jet ports are opened on the jet pipe, and the jet pipe is connected to another rotary joint on the two rotating shafts.

[0011] As a preferred technical solution of the utility model, the eccentric wheel is arranged opposite to the connecting rod.

[0012] As a preferred technical solution of the present utility model, the flow limiting directions of the two one-way valves are opposite.

[0013] The utility model has the following beneficial effects:

[0014] 1. The coolant circulates inside the extrusion roller, which reduces the temperature of the extrusion roller, thereby reducing the temperature of the rubber material, effectively preventing the high-temperature rubber material from sticking to the extrusion roller, and improving production efficiency and product quality;

[0015] 2. Through the combination of the eccentric wheel, the connecting rod and the sliding plug, the reciprocating pumping and cooling of the air inside the sealing tube are realized, and then the gas is cooled through the cooling pipe, and finally the cooled gas is sprayed on the surface of the rubber material through the jet nozzle, realizing multiple cooling mechanisms and improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an extrusion device for rubber processing proposed by the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the structure at A.

[0018] In the figure: 1 a pair of roller extrusion device, 2 extrusion rollers, 3 a rotating shaft, 4 a motor, 5 a coolant, 61 a cooling pipe, 62 a connecting pipe, 63 a rotary joint, 71 an eccentric wheel, 72 a sealing cylinder, 73 a sliding plug, 74 a spring, 75 a connecting rod, 76 an air pipe, 77 a one-way valve, 81 an air jet pipe, and 82 an air jet port. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-2 A rubber processing extrusion device comprises a pair of roller extrusion devices 1, two rotating shafts 3 are installed on the pair of roller extrusion devices 1, and extrusion rollers 2 are installed on the two rotating shafts 3. A motor 4 is installed on the pair of roller extrusion devices 1, and the two extrusion rollers 2 are driven by the motor 4. The two extrusion rollers 2 are hollow in structure, and coolant 5 is accumulated inside the two extrusion rollers 2. The extrusion rollers 2 are hollow in structure, and the coolant 5 is accumulated inside. The coolant 5 can cool the extrusion rollers 2, and the low-temperature extrusion rollers 2 can cool the rubber material to prevent the high-temperature rubber material from sticking to the extrusion rollers 2;

[0021] Both extrusion rollers 2 are provided with cooling components, which include a cooling pipe 61, two connecting pipes 62 and two rotating joints 63. The cooling pipe 61 is fixed inside the extrusion roller 2 and immersed in the coolant 5. The two rotating joints 63 are respectively installed at both ends of the rotating shaft 3. One end of the two connecting pipes 62 is respectively connected to the two ends of the cooling pipe 61, and the other end of the two connecting pipes 62 is respectively connected to the two rotating joints 63. When the gas flows in the cooling pipe 61, the coolant 5 can cool the gas through the cooling pipe 61. The design of the rotating joint 63 enables the rotating shaft 3 and the pipeline to rotate relative to each other, thereby avoiding the pipeline from being entangled on the rotating shaft 3 and ensuring the normal operation of the device.

[0022] The roller extrusion device 1 is provided with an air supply component and an air injection component. The air supply component includes an eccentric wheel 71, a sealing cylinder 72, a sliding plug 73, a spring 74, a connecting rod 75, two air pipes 76 and two one-way valves 77. The eccentric wheel 71 is fixedly sleeved on one of the rotating shafts 3, the sealing cylinder 72 is fixed on the roller extrusion device 1, the sliding plug 73 is sealingly slidably connected to the inner surface of the sealing cylinder 72, the spring 74 is arranged between the sealing cylinder 72 and the sliding plug 73, one end of the connecting rod 75 is fixed on the sliding plug 73, and the other end extends to the outside of the sealing cylinder 72, the eccentric wheel 71 is arranged opposite to the connecting rod 75, the two air pipes 76 are connected to the sealing cylinder 72, and the two The one-way valves 77 are respectively installed on the two air pipes 76, and the flow limiting directions of the two one-way valves 77 are opposite. One of the air pipes 76 is connected to one of the rotary joints 63 on the two rotating shafts 3. The jet assembly includes an air jet pipe 81 and a plurality of air jet ports 82. The air jet pipe 81 is fixed on the double-roll extrusion device 1. The plurality of air jet ports 82 are all opened on the air jet pipe 81. The air jet pipe 81 is connected to another rotary joint 63 on the two rotating shafts 3. With the reciprocating movement of the sliding plug 73, the sealing cylinder 72 can continuously extract air and pump the air into the interior of the two cooling pipes 61. Since the cooling pipes 61 are immersed in the interior of the coolant 5.

[0023] The specific working principle of the utility model is as follows:

[0024] When the utility model is in use, the motor 4 is started to drive the two rotating shafts 3 to rotate, so that the two squeezing rollers 2 rotate synchronously. The way in which the motor 4 drives the two squeezing rollers 2 is not an innovative part of the technical solution, and is not shown in the figure, and will not be described in detail here. The squeezing roller 2 is a hollow structure, and a coolant 5 is accumulated inside it. The coolant 5 can cool the squeezing roller 2, and the low-temperature squeezing roller 2 can cool the rubber material to prevent the high-temperature rubber material from sticking to the squeezing roller 2;

[0025] Furthermore, one of the rotating shafts 3 drives the eccentric wheel 71 to rotate, and the eccentric wheel 71 can continuously squeeze the connecting rod 75 when rotating. When the eccentric wheel 71 squeezes the connecting rod 75, the connecting rod 75 will move downward and drive the sliding plug 73 to move downward through the connecting rod 75. When the eccentric wheel 71 is separated from the connecting rod 75, the sliding plug 73 will move up and reset under the action of the spring 74. Therefore, with the operation of the motor 4, the sliding plug 73 will reciprocate inside the sealing cylinder 72. Since the flow limiting directions of the two one-way valves 77 are opposite, specifically, one of the one-way valves 77 limits the liquid to only enter the interior of the sealing cylinder 72, and the other one-way valve 77 limits the liquid to only flow out of the interior of the sealing cylinder 72. Therefore, with the reciprocating movement of the sliding plug 73, the sealing cylinder 72 can be continuously Air is extracted and pumped into the interior of the two cooling tubes 61. Since the cooling tubes 61 are immersed in the coolant 5, the coolant 5 can cool the gas through the cooling tubes 61 while the gas is flowing in the cooling tubes 61. The cooled gas enters the interior of the jet tubes 81 and is ejected through a plurality of jet ports 82. The low-temperature gas ejected from the jet ports 82 can cool the surface of the rubber material, and also cool the rubber material, further preventing the high-temperature rubber material from adhering to the extrusion roller 2. It should be noted that rotary joints 63 are provided at both ends of the two rotating shafts 3. The design of the rotary joints 63 enables the rotating shafts 3 and the pipeline to rotate relative to each other, thereby preventing the pipeline from being entangled on the rotating shaft 3 and ensuring the normal operation of the device.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An extrusion device for rubber processing, comprising a pair of roller extrusion devices (1), wherein two rotating shafts (3) are mounted on the pair of roller extrusion devices (1), and extrusion rollers (2) are mounted on the two rotating shafts (3), and a motor (4) is mounted on the pair of roller extrusion devices (1), and the two extrusion rollers (2) are driven by the motor (4), characterized in that: The two squeezing rollers (2) are both hollow structures, and cooling liquid (5) is stored inside the two squeezing rollers (2). The two squeezing rollers (2) are both provided with cooling components, and the double-roll squeezing device (1) is provided with an air supply component and an air injection component.

2. A rubber processing extrusion device according to claim 1, characterized in that: The cooling assembly comprises a cooling pipe (61), two connecting pipes (62) and two rotating joints (63); the cooling pipe (61) is fixed inside the extrusion roller (2), and the cooling pipe (61) is immersed in the cooling liquid (5); the two rotating joints (63) are respectively installed at two ends of the rotating shaft (3); one end of the two connecting pipes (62) is respectively connected to two ends of the cooling pipe (61), and the other end of the two connecting pipes (62) is respectively connected to the two rotating joints (63).

3. A rubber processing extrusion device according to claim 2, characterized in that: The air supply assembly comprises an eccentric wheel (71), a sealing cylinder (72), a sliding plug (73), a spring (74), a connecting rod (75), two air pipes (76) and two one-way valves (77). The eccentric wheel (71) is fixedly sleeved on one of the rotating shafts (3). The sealing cylinder (72) is fixed on the roller extrusion device (1). The sliding plug (73) is sealingly slidably connected to the inner surface of the sealing cylinder (72). The spring (74) is arranged between the sealing cylinder (72) and the sliding plug (73). One end of the connecting rod (75) is fixed on the sliding plug (73) and the other end extends to the outside of the sealing cylinder (72). The two air pipes (76) are both connected to the sealing cylinder (72). The two one-way valves (77) are respectively installed on the two air pipes (76). One of the air pipes (76) is connected to one of the rotating joints (63) on the two rotating shafts (3).

4. A rubber processing extrusion device according to claim 3, characterized in that: The jet assembly comprises an jet pipe (81) and a plurality of jet ports (82); the jet pipe (81) is fixed on the roller extrusion device (1); the plurality of jet ports (82) are all provided on the jet pipe (81); and the jet pipe (81) is connected to another rotary joint (63) on the two rotating shafts (3).

5. The rubber processing extrusion device according to claim 3, characterized in that: The eccentric wheel (71) is arranged opposite to the connecting rod (75).

6. The extrusion device for rubber processing according to claim 3, characterized in that: The flow limiting directions of the two one-way valves (77) are opposite.

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