CN219133182U - Constant temperature rubber extruder - Google Patents

Abstract

The utility model relates to the technical field of rubber processing equipment, in particular to a constant-temperature rubber extruder. The machine comprises a machine table, be provided with barrel and reducing gear box on the board, be provided with the feed inlet on the barrel, be provided with rotatable screw rod in the barrel, the input shaft of reducing gear box is connected with the motor, the one end of the output shaft screw rod of reducing gear box, the one end that the feed inlet was kept away from to the barrel has connected gradually constant temperature section of thick bamboo and is used for extruding the aircraft nose of rubber, be provided with the first cavity that the transversal annular of personally submitting in the section of thick bamboo wall of constant temperature section of thick bamboo, be provided with the diverging piece in the constant temperature section of thick bamboo, be provided with the second cavity in the diverging piece, the both ends and the first cavity intercommunication of second cavity still are provided with first oil pipe and the second oil pipe with first cavity both ends on the constant temperature section of thick bamboo. The utility model adopts the constant temperature cylinder arranged between the machine barrel and the machine head, so that the temperature of the soft rubber reaches the machine head to be closer to the required temperature.

Description

Constant temperature rubber extruder

Technical Field

The utility model relates to the technical field of rubber processing equipment, in particular to a constant-temperature rubber extruder.

Background

The rubber extruder is a basic device in the rubber industry, is one of key devices affecting the product quality, and plays a very important role in the production process of rubber products. The development of the rubber extruder is subjected to the stages of a plunger type extruder, a screw type extruder, a common cold extruder, a main and auxiliary screw type extruder, a cold feed exhaust extruder, a pin cold feed extruder, a composite extruder and the like. The existing screw extruder comprises a cold feed type extruder and a hot feed type extruder, when the extruder extrudes rubber, the rubber contacts with a machine barrel of the extruder to generate heat exchange, the shearing action of the screw generates a large amount of heat, the temperature of soft rubber when reaching a machine head can not be well controlled, the extruded product possibly cannot reach the production standard, and the material is wasted.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a constant temperature rubber extruder, wherein a constant temperature cylinder is arranged between a machine barrel and a machine head, so that the temperature of soft rubber reaches the machine head to be closer to the required temperature.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a constant temperature rubber extruder, includes the board, be provided with barrel and reducing gear box on the board, be provided with the feed inlet on the barrel, be provided with the screw rod that can rotate in the barrel, the input shaft of reducing gear box is connected with the motor, the one end of the output shaft connection screw rod of reducing gear box, the one end that the feed inlet was kept away from to the barrel has connected gradually constant temperature section of thick bamboo and is used for extruding the aircraft nose of rubber, be provided with the first cavity that the transversal annular is personally submitted in the section of thick bamboo wall of constant temperature section of thick bamboo, be provided with the diverging piece in the constant temperature section of thick bamboo, be provided with the second cavity in the diverging piece, the both ends and the first cavity intercommunication of second cavity still are provided with first oil pipe and the second oil pipe with first cavity two-way on the constant temperature section of thick bamboo.

Further optimize this technical scheme, the position outside second cavity and the intercommunication position thereof is provided with first baffle and the second baffle that sets up about constant temperature section of thick bamboo axis symmetry in the first cavity, first baffle is close to the intercommunication position of first cavity and second cavity, first oil pipe is located the one side that first cavity and second cavity intercommunication position were kept away from to first baffle, second oil pipe is located the one side that first cavity and second cavity intercommunication position were kept away from to the second baffle.

According to the technical scheme, the two ends of the flow dividing piece in the axial direction of the constant temperature cylinder are pointed ends, and the width of the flow dividing piece gradually increases from the two ends to the middle.

Further optimize this technical scheme, the outside cover of aircraft nose still is equipped with the constant temperature cover, be provided with the transversal annular third cavity that personally submits in the section of thick bamboo wall of constant temperature cover, be provided with third oil pipe and the fourth oil pipe with third cavity intercommunication on the constant temperature cover, be provided with the third baffle in the third cavity, third oil pipe and fourth oil pipe are located the both sides of third baffle respectively.

Compared with the prior art, the utility model has the following advantages: 1. a constant temperature cylinder is arranged between the machine barrel and the machine head, the constant temperature cylinder can keep the required temperature after being connected with a constant temperature hot oil supply device when in use, and soft rubber is subjected to heat exchange with the constant temperature cylinder when passing through the constant temperature cylinder so that the temperature of the soft rubber is closer to the temperature of the constant temperature cylinder, and the temperature of the soft rubber when reaching the machine head is closer to the required temperature; 2. the two ends of the flow dividing piece are pointed ends in the axial direction of the constant temperature cylinder, the width of the flow dividing piece gradually increases from the two ends to the middle, on one hand, the resistance to soft rubber is smaller, on the other hand, when the soft rubber flow passes through the flow dividing piece, the position of fluid in the soft rubber flow changes, so that the heat transfer between the soft rubber flow and the constant temperature cylinder is more sufficient; 3. the outside of the machine head is also sleeved with a constant temperature sleeve, so that the temperature of the machine head can be better controlled, and the extruded product can reach the standard more easily.

Drawings

Fig. 1 is a schematic structural view of a constant temperature rubber extruder.

Fig. 2 is a longitudinal cross-sectional view of the thermostatic cartridge.

Fig. 3 is a transverse cross-sectional view of a thermostatic cartridge.

Fig. 4 is a schematic structural view of the constant temperature jacket.

In the figure: 1. a machine table; 2. a motor; 3. a reduction gearbox; 4. a feed inlet; 5. a barrel; 6. a constant temperature cylinder; 61. a first cavity; 62. a shunt; 621. a second cavity; 63. a first oil pipe; 64. a first separator; 65. a second oil pipe; 66. a second separator; 7. a machine head; 8. a constant temperature sleeve; 81. a third cavity; 82. a third separator; 83. a third oil pipe; 84. and a fourth oil pipe.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

The specific embodiment is as follows: referring to fig. 1-4, a constant temperature rubber extruder comprises a machine table 1, wherein a machine barrel 5 and a reduction gearbox 3 are arranged on the machine table 1, a feed inlet 4 is arranged on the machine barrel 5, a screw capable of rotating is arranged in the machine barrel 5, an input shaft of the reduction gearbox 3 is connected with a motor 2, an output shaft of the reduction gearbox 3 is connected with one end of the screw through a coupling, and the motor 2 can drive the screw to rotate. One end of the machine barrel 5 far away from the feed inlet 4 is sequentially connected with a constant temperature barrel 6 and a machine head 7 for extruding rubber. The wall of the constant temperature cylinder 6 is provided with a first cavity 61 with an annular cross section, the constant temperature cylinder 6 is internally provided with a flow dividing piece 62, two ends of the flow dividing piece 62 are in sealing connection with the inner wall of the constant temperature cylinder 6, the flow dividing piece 62 is internally provided with a second cavity 621, two ends of the second cavity 621 are communicated with the first cavity 61, and the constant temperature cylinder 6 is also provided with a first oil pipe 63 and a second oil pipe 65 which are communicated with the first cavity 61. The flow divider 62 can improve the heat transfer efficiency of the thermostatic cartridge 6. When in use, the first oil pipe 63 and the second oil pipe 65 are used for connecting a constant temperature hot oil supply device, the constant temperature hot oil supply device is the prior art, the constant temperature hot oil supply device comprises an oil tank and a controller, a heating element and a thermocouple are arranged in the oil tank, an oil outlet pipe is arranged at the lower part of the oil tank, an oil return pipe is arranged at the upper part of the oil tank, the oil outlet pipe is connected with a circulating oil pump, the circulating oil pump is connected to the first oil pipe 63 through a pipeline, the oil return pipe is connected to the second oil pipe 65 through a pipeline, and the circulating oil pump, the heating element and the thermocouple are all electrically connected to the controller.

Preferably, a first partition plate 64 and a second partition plate 66 are disposed in the first cavity 61 at positions other than the communication position of the second cavity 621, and are symmetrically disposed about the axis of the thermostatic cartridge 6, the first partition plate 64 and the second partition plate 66 are respectively in sealing connection with the first cavity 61, the first partition plate 64 is close to the communication position of the first cavity 61 and the second cavity 621, the first oil pipe 63 is located at one side of the first partition plate 64 away from the communication position of the first cavity 61 and the second cavity 621, and the second oil pipe 65 is located at one side of the second partition plate 66 away from the communication position of the first cavity 61 and the second cavity 621. With this structure, the hot oil enters the first cavity 61 from the first oil pipe 63, then enters the second cavity 621, then enters the first cavity 61 again, and then is discharged from the second oil pipe 65, and the temperature of the hot oil is sufficiently transferred to the thermostatic cartridge 6.

Preferably, the flow dividing member 62 is pointed at both ends thereof in the axial direction of the thermostatic cartridge 6, and gradually becomes wider from both ends to the middle thereof. In this structure, on the one hand, the resistance to the soft rubber is small, on the other hand, when the soft rubber passes through the flow dividing member 62, the soft rubber bypasses from two sides of the flow dividing member 62, and the position of the fluid in the soft rubber flow in the rubber flow is changed due to the change of the internal cross sectional areas of the flow dividing member 62 and the constant temperature cylinder 6, so that the heat transfer between each part and the constant temperature cylinder 6 is more sufficient.

Optionally, the outside of the machine head 7 may be further sleeved with a constant temperature sleeve 8, a third cavity 81 with a circular cross section is provided in the wall of the constant temperature sleeve 8, a third oil pipe 83 and a fourth oil pipe 84 which are communicated with the third cavity 81 are provided on the constant temperature sleeve 8, a third partition 82 in sealing connection with the third cavity 81 is provided in the third cavity 81, and the third oil pipe 83 and the fourth oil pipe 84 are respectively located at two sides of the third partition 82. In use, the third and fourth oil pipes 83, 84 are also connected to the thermostatic hot oil supply device by piping. The thermostatic jacket 8 can perform a heat transfer action with the head 7, so that the temperature of the head 7 can be better controlled, and the extruded product can be more easily standardized.

In use, the rubber material is fed from the feed inlet 4 and finally extruded from the head 7. The soft rubber passes through the constant temperature cylinder 6 and has heat exchange effect with the constant temperature cylinder 6 when passing through the constant temperature cylinder 6, if the temperature of the soft rubber is higher than the constant temperature cylinder 6, the soft rubber is cooled by the constant temperature cylinder 6 so that the temperature is closer to the required temperature, and if the temperature of the soft rubber is lower than the constant temperature cylinder 6, the soft rubber is heated by the constant temperature cylinder 6 so that the temperature is closer to the required temperature, and the temperature of the soft rubber is closer to the required temperature when the machine head 7 is extruded, so that the extruded product can reach the standard more easily.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (4)

1. The utility model provides a constant temperature rubber extruder, includes board (1), be provided with barrel (5) and reducing gear box (3) on board (1), be provided with feed inlet (4) on barrel (5), be provided with rotatable screw rod in barrel (5), the input shaft of reducing gear box (3) is connected with motor (2), the one end of the output shaft screw rod of reducing gear box (3), its characterized in that: one end that feed inlet (4) was kept away from to barrel (5) has connected gradually constant temperature section of thick bamboo (6) and is used for extruding rubber aircraft nose (7), be provided with in the section of thick bamboo wall of constant temperature section of thick bamboo (6) and personally submit annular first cavity (61), be provided with in constant temperature section of thick bamboo (6) reposition of redundant personnel spare (62), be provided with second cavity (621) in reposition of redundant personnel spare (62), the both ends and first cavity (61) intercommunication of second cavity (621), still be provided with on constant temperature section of thick bamboo (6) with first cavity (61) first oil pipe (63) and second oil pipe (65).

2. A constant temperature rubber extruder according to claim 1, wherein: the first partition plate (64) and the second partition plate (66) which are symmetrically arranged on the axis of the constant temperature cylinder (6) are arranged at positions, except for the communicating positions of the first cavity (61), of the second cavity (621), the first partition plate (64) is close to the communicating positions of the first cavity (61) and the second cavity (621), the first oil pipe (63) is located on one side, away from the communicating positions of the first cavity (61) and the second cavity (621), of the first partition plate (64), and the second oil pipe (65) is located on one side, away from the communicating positions of the first cavity (61) and the second cavity (621), of the second partition plate (66).

3. A constant temperature rubber extruder according to claim 1, wherein: the flow dividing member (62) is pointed at both ends thereof in the axial direction of the thermostatic cartridge (6), and gradually becomes wider from both ends to the middle thereof.

4. A thermostatic rubber extruder according to any one of claims 1 to 3 wherein: the automatic constant temperature machine is characterized in that a constant temperature sleeve (8) is further sleeved outside the machine head (7), a third cavity (81) with a circular cross section is arranged in the cylinder wall of the constant temperature sleeve (8), a third oil pipe (83) and a fourth oil pipe (84) which are communicated with the third cavity (81) are arranged on the constant temperature sleeve (8), a third partition plate (82) is arranged in the third cavity (81), and the third oil pipe (83) and the fourth oil pipe (84) are respectively located at two sides of the third partition plate (82).

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