Extruder for rubber tube production

Abstract

The utility model belongs to the technical field of extruders, in particular to an extruder for rubber tube production, which comprises a first support plate, a machine barrel and a charging barrel, a sealing shell is fixedly mounted on one side of the charging barrel, a third motor is fixedly mounted on one side of the sealing shell, a shell is fixedly mounted in the sealing shell, a main shaft is fixedly mounted in the shell, and a second support plate is fixedly mounted in the main shaft. A hammer cutter is fixedly installed on the main shaft, a feeding port is formed in the upper portion of the machine shell, and a discharging port is formed in the bottom end of the machine shell. Materials can be more uniform by installing the crushing device, after the materials enter the charging barrel, large material particles are screened out through the screen, the material particles can enter the feeding port in the sealing shell, meanwhile, the third motor outside the sealing shell generates electric energy to drive the main shaft in the machine shell to rotate, and therefore the materials can be crushed more evenly. And the hammer cutters mounted on the main shaft rotate together, and the crushed materials can flow back into the feeding cylinder from the discharge hole, so that the sizes of the materials are uniform, and the working efficiency of the extruder and the quality of a rubber tube are improved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to an extruder for hose production. Background Technology

[0002] Extruders originated in the 18th century, initially primarily used for processing materials such as plastics. With the development of the rubber industry, hose extruders gradually evolved from plastic extruder technology and have been continuously improved and perfected. Early hose extruders had relatively simple structures, resulting in lower production efficiency and product quality. Later, with technological advancements, various new types of hose extruders emerged, such as synchronous hose extruders and new rubber-plastic extruders with heating functions.

[0003] Patent document CN215970008U discloses an extruder for rubber hose production, comprising: a mixing chamber, an extrusion chamber, and a production support. The mixing chamber and the extrusion chamber are mounted on the production support. The extrusion chamber is connected to the mixing chamber via a high-pressure extrusion structure. The bottom end of the mixing chamber is mounted on an extrusion feeding structure, and a cooling structure is mounted on the production support. This utility model relates to the field of rubber hose production technology. It uses an extrusion feeding structure and a high-pressure extrusion structure to extrude and form raw materials. Then, a cooling structure limits the upper and lower ends of the hot-melt extruded rubber hose, while simultaneously cooling it through the extrusion at both ends. This achieves the cooling and extrusion molding of raw materials, while simultaneously circulating the cooled liquid through a cooling structure to avoid uneven cooling at both ends of the molding process. However, the extruder for hose production in the aforementioned published literature mainly considers circulating the cooled liquid through a cooling structure to avoid uneven cooling at both ends of the molding process, without considering the problem that uneven screw rotation load due to different material particle sizes will reduce working efficiency. Therefore, it is necessary to develop an extruder for hose production that can make the material size more uniform, improve the working efficiency of the extruder and the quality of the hose. Utility Model Content

[0004] The purpose of this invention is to provide an extruder for hose production, in order to solve the technical problem mentioned in the background art that does not take into account the uneven rotational load of the screw due to different particle sizes of materials, which reduces working efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extruder for producing rubber hoses, comprising a first support plate, a barrel, and a feed cylinder. The barrel is connected to the first support plate, and the feed cylinder is connected to the barrel. A screen is installed inside the feed cylinder. A sealing shell is fixedly installed on one side of the feed cylinder, and a second support plate is fixedly installed on one side of the sealing shell. A No. 3 motor is fixedly installed above the second support plate. A housing is fixedly installed inside the sealing shell, and an impact plate is provided inside the housing. A main shaft is fixedly installed inside the housing, and a hammer is fixedly installed on the main shaft. A feed inlet is provided at the top of the housing, and a discharge outlet is provided at the bottom of the housing.

[0006] Preferably, the material cylinder is connected to the sealing cover, a second motor is fixedly installed on the sealing cover, a stirring shaft is fixedly installed at the output end of the second motor, one end of the stirring shaft passes through the inside of the material cylinder, a stirring paddle is fixedly installed below the stirring shaft, a screen is installed inside the material cylinder, a third support plate is fixedly installed on the outer wall of the material cylinder, and a vibration motor is fixedly installed on the third support plate.

[0007] Preferably, a No. 1 motor is fixedly installed on the first support plate, and a coupling is fixedly connected to one side of the No. 1 motor, with a screw fixedly installed on the coupling.

[0008] Preferably, the bottom end of the barrel is provided with a rubber inlet, and the rubber inlet is connected to the barrel. The end of the barrel is fixedly installed with a machine head, and the rubber tube outlet is fixedly installed at the end of the machine head.

[0009] Preferably, a heating device is fixedly installed inside the barrel, the heating device is provided with a resistance heating coil, and the resistance heating coil is wrapped around the screw. A cooling device is fixedly installed inside the barrel, and the cooling device is provided with cooling water.

[0010] Preferably, the first support plate is fixedly installed with multiple support legs, and the support legs are distributed around the first support plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by installing a crushing device, can make the material more uniform. After the material enters the barrel, larger material particles can be screened out by the screen. These material particles will enter the feed port inside the sealed shell. At the same time, the No. 3 motor outside the sealed shell generates electrical energy to drive the main shaft inside the shell to rotate. The hammer blades installed on the main shaft rotate together. The material is struck and thrown by the high-speed rotating hammer blades and thrown towards the impact plate. The material collides with the impact plate and is further crushed under the impact force. The crushed material will flow back into the feed barrel from the discharge port. The crushing device can directly crush the rubber material inside the extruder without additional crushing equipment and processes, reducing the production process and saving time and labor costs. At the same time, since the extrusion performance of the rubber material is improved and the extrusion speed is increased, it also helps to improve the overall production efficiency, improve the working efficiency of the extruder and the quality of the rubber hose.

[0013] 2. This utility model improves material mixing by installing a screening and stirring device. When the material enters the barrel, the No. 2 motor installed on the sealing cover generates electricity to drive the stirring shaft to rotate. The stirring paddle installed on the stirring shaft rotates accordingly. At the same time, the vibrating motor on the outer wall of the barrel vibrates, causing the particles on the screen to fall into the feed inlet. The stirring device can fully mix different types and properties of materials, such as rubber, additives, and fillers, ensuring that the properties of each part of the rubber compound are consistent. This avoids quality problems in the rubber tube caused by uneven material distribution. It can also increase the contact area between the material and the heating components, making the material heated more evenly, accelerating the plasticizing process, improving the fluidity of the rubber compound, and facilitating extrusion molding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an extruder for producing rubber hoses according to this utility model;

[0015] Figure 2 This is a front structural diagram of an extruder for producing rubber hoses according to the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the crushing device of this utility model;

[0017] Figure 4 This is a partial structural diagram of the stirring and sieving device of this utility model.

[0018] In the diagram: 1. Support leg; 2. First support plate; 3. Motor 1; 4. Coupling; 5. Hose outlet; 6. Barrel; 7. Machine barrel; 8. Machine head; 9. Screw; 10. Sealing cover; 11. Motor 2; 12. Second support plate; 13. Motor 3; 14. Sealing shell; 15. Heating device; 16. Cooling device; 17. Rubber inlet; 18. Resistance heating coil; 19. Cooling water; 20. Machine housing; 21. Impact plate; 22. Main shaft; 23. Hammer blade; 24. Feed inlet; 25. Discharge outlet; 26. Agitator shaft; 27. Agitator paddle; 28. Screen; 29. ​​Vibration motor; 30. Third support plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 — Figure 4An extruder for producing rubber hoses includes a first support plate 2, a barrel 7, and a feed cylinder 6. The barrel 7 is connected to the first support plate 2, and the feed cylinder 6 is connected to the barrel 7. A screen 28 is installed inside the feed cylinder 6. A sealing shell 14 is fixedly installed on one side of the feed cylinder 6, and a second support plate 12 is fixedly installed on one side of the sealing shell 14. A third motor 13 is fixedly installed above the second support plate 12. A housing 20 is fixedly installed inside the sealing shell 14, and an impact plate 21 is provided inside the housing 20. A main shaft 22 is fixedly installed inside the housing 20. Hammer blades 23 are fixedly installed on the 22. A feed inlet 24 is provided on the top of the casing 20, and a discharge outlet 25 is provided at the bottom of the casing 20. When the hose extruder is in use, the material is first poured into the barrel 6. At the same time, the No. 1 motor 3 generates electricity to drive the coupling 4 to rotate, which in turn drives the screw 9 to rotate. The material passes through the barrel 6 and enters the casing 7. The material moves forward due to the rotation of the screw 9. Then, the material is heated by the heating device 15 to become a flowable viscous state, and then cooled by the cooling device 16 to prevent the material from overheating. Finally, the material is plasticized through the die head 8, and the final produced hose is extruded from the hose outlet 5. Due to the different particle sizes of the material, the rotational load of the screw 9 is uneven, reducing the working efficiency. After the material enters the barrel 6, the larger material particles can be screened out by the screen 28. These material particles will enter the feed port 24 inside the sealing shell 14. At the same time, the No. 3 motor 13 outside the sealing shell 14 generates electrical energy to drive the main shaft 22 inside the casing 20 to rotate. The hammer blades 23 installed on the main shaft 22 rotate together. The material is struck and thrown by the high-speed rotating hammer blades 23 towards the impact plate 21. The material collides with the impact plate 21 and is further crushed under the impact force. The crushed material will flow back into the feed barrel 6 from the discharge port 25. The crushing device can directly crush the rubber material inside the extruder without additional crushing equipment and processes, reducing the production process and saving time and labor costs. At the same time, since the extrusion performance of the rubber material is improved and the extrusion speed is increased, it also helps to improve the overall production efficiency, improve the working efficiency of the extruder and the quality of the hose.

[0021] Please see Figure 2 and Figure 3The material cylinder 6 is connected to the sealing cover 10. A second motor 11 is fixedly installed on the sealing cover 10. A stirring shaft 26 is fixedly installed at the output end of the second motor 11, and one end of the stirring shaft 26 passes through the inside of the material cylinder 6. A stirring paddle 27 is fixedly installed below the stirring shaft 26. A screen 28 is installed inside the material cylinder 6. A third support plate 30 is fixedly installed on the outer wall of the material cylinder 6, and a vibration motor 29 is fixedly installed on the third support plate 30. When the material enters the material cylinder 6, the screening and stirring device can better mix the material. When the material enters the material cylinder 6, the second motor 11 installed on the sealing cover 10 will... The generated electricity drives the stirring shaft 26 to rotate, and the stirring paddle 27 installed on the stirring shaft 26 rotates accordingly. At the same time, the vibration motor 29 on the outer wall of the material cylinder 6 vibrates, causing the particles on the screen 28 to fall into the feed inlet 24. The uniformly mixed material will flow down from the screen 28. The stirring device can fully mix different types and properties of materials, such as rubber, additives, and fillers, to ensure that the properties of each part of the rubber compound are consistent, avoid quality problems of the rubber tube caused by uneven material distribution, and also increase the contact area between the material and the heating components, so that the material is heated more evenly, accelerates its plasticizing process, improves the fluidity of the rubber compound, and facilitates extrusion molding.

[0022] Please see Figure 1 and Figure 2 A heating device 15 is fixedly installed inside the barrel 7, and a resistance heating coil 18 is provided inside the heating device 15, which is wrapped around the screw 9. A cooling device 16 is fixedly installed inside the barrel 7, and cooling water 19 is provided inside the cooling device 16. A rubber inlet 17 is provided at the bottom end of the barrel 6 and is connected to the barrel 7. A machine head 8 is fixedly installed at the end of the barrel 7, and a rubber tube outlet 5 is fixedly installed at the end of the machine head 8. A plurality of support legs 1 are fixedly installed on the first support plate 2, and the support legs 1 are distributed around the first support plate 2. Installing the heating device 15 can make the rubber material reach the process requirements. The required temperature is achieved by heating the material inside the barrel 7 through the heating device 15, raising it to a suitable processing temperature to achieve good fluidity and plasticity to meet the requirements of extrusion molding. The installation of the cooling device 16 can prevent the rubber material from overheating and decomposing. During the extrusion process, the rotation of the screw 9 generates a large amount of frictional heat. If it is not cooled in time, it will affect the product quality. The cooling device 16 can reduce the temperature of various parts of the equipment, prevent damage due to overheating, and extend the service life of the equipment. The first support plate 2 and the support leg 1 can absorb and buffer the vibration and impact generated during use, protecting the structure and internal structure.

[0023] Working principle: After the material enters the feed cylinder 6, larger particles are screened out by the screen 28. These particles enter the feed inlet 24 inside the sealed shell 14. Simultaneously, the No. 3 motor 13 outside the sealed shell 14 generates electrical energy to drive the main shaft 22 inside the casing 20 to rotate. The hammer blades 23 mounted on the main shaft 22 rotate together. The material is struck and thrown by the high-speed rotating hammer blades 23 towards the impact plate 21. The material collides with the impact plate 21 and is further crushed under the impact force. The crushed material flows back into the feed cylinder 6 from the discharge port 25. The crushing device can directly crush the rubber compound inside the extruder without additional crushing equipment and processes, reducing the production process and saving time and labor costs. At the same time, due to the improved extrusion performance of the rubber compound, the extrusion... Increased speed also helps improve overall production efficiency, extruder efficiency, and hose quality. The No. 2 motor 11 on the sealing cover 10 generates electricity to drive the stirring shaft 26 to rotate. The stirring paddle 27 installed on the stirring shaft 26 rotates accordingly. At the same time, the vibration motor 29 on the outer wall of the barrel 6 vibrates, causing the particles on the screen 28 to fall into the feed inlet 24. The uniformly mixed material flows down from the screen 28. The stirring device can fully mix different types and properties of materials, such as rubber, additives, and fillers, ensuring that the properties of each part of the rubber compound are consistent and avoiding hose quality problems caused by uneven material distribution. It can also increase the contact area between the material and the heating components, making the material heat more evenly, accelerating its plasticizing process, improving the fluidity of the rubber compound, and facilitating extrusion molding.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An extruder for producing rubber hoses, comprising a first support plate (2), a barrel (7), and a feed cylinder (6), characterized in that: The barrel (7) is connected to the first support plate (2), the material barrel (6) is connected to the barrel (7), a screen (28) is installed inside the material barrel (6), a sealing shell (14) is fixedly installed on one side of the material barrel (6), a second support plate (12) is fixedly installed on one side of the sealing shell (14), and a No. 3 motor (13) is fixedly installed above the second support plate (12). A housing (20) is fixedly installed inside the sealing shell (14), and an impact plate (21) is provided inside the housing (20). A main shaft (22) is fixedly installed inside the housing (20), and a hammer (23) is fixedly installed on the main shaft (22). A feed inlet (24) is provided above the housing (20), and a discharge outlet (25) is provided at the bottom of the housing (20).

2. The extruder for producing rubber hoses according to claim 1, characterized in that: The material cylinder (6) is connected to the sealing cover (10). A second motor (11) is fixedly installed on the sealing cover (10). A stirring shaft (26) is fixedly installed at the output end of the second motor (11), and one end of the stirring shaft (26) passes through the inside of the material cylinder (6). A stirring paddle (27) is fixedly installed below the stirring shaft (26). A screen (28) is installed inside the material cylinder (6). A third support plate (30) is fixedly installed on the outer wall of the material cylinder (6), and a vibration motor (29) is fixedly installed on the third support plate (30).

3. The extruder for producing rubber hoses according to claim 1, characterized in that: A No. 1 motor (3) is fixedly installed on the first support plate (2). A coupling (4) is fixedly connected to one side of the No. 1 motor (3), and a screw (9) is fixedly installed on the coupling (4).

4. The extruder for producing rubber hoses according to claim 1, characterized in that: The bottom end of the barrel (6) is provided with a rubber inlet (17), and the rubber inlet (17) is connected to the barrel (7). The end of the barrel (7) is fixedly installed with a machine head (8), and the rubber tube outlet (5) is fixedly installed at the end of the machine head (8).

5. An extruder for producing rubber hoses according to claim 1, characterized in that: A heating device (15) is fixedly installed inside the barrel (7). A resistance heating coil (18) is provided inside the heating device (15) and the resistance heating coil (18) is wrapped around the screw (9). A cooling device (16) is fixedly installed inside the barrel (7) and cooling water (19) is provided inside the cooling device (16).

6. An extruder for producing rubber hoses according to claim 1, characterized in that: The first support plate (2) is fixedly equipped with multiple support legs (1), and the support legs (1) are distributed around the first support plate (2).

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