Extruder barrel

Abstract

The utility model relates to an extruder barrel, which belongs to the technical field of extruders and comprises an extruder barrel fixed on a frame and a driving motor fixed on the extruder barrel, and a conveying structure is fixed on the upper surface of one end of the extruder barrel; the material conveying structure comprises a material bin fixedly communicated with the upper surface of the extruder barrel and a material separation rotor rotationally arranged in the material bin, a transmission structure is installed between the material separation rotor and a screw rod in the extruder barrel, the transmission structure is composed of two second synchronous wheels and a second synchronous belt, the temperature control structure is provided with a stirring shaft, and the stirring shaft is connected with the material separation rotor. And a synchronous structure is arranged between the stirring shaft and the driving motor. According to the extruder barrel, through the transmission structure of the synchronous wheels and the synchronous belt, the uniformity and stability of material conveying are improved, the designed structure is relatively simple, disassembly and assembly are easy, daily maintenance and maintenance are convenient, meanwhile, coordination is high, the maintenance cost of equipment is reduced, and the usability and production efficiency of the equipment are improved.

Description

Technical Field

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

[0002] An extruder, also known as a screw extruder, is a mechanical device that uses pressure and shear force to force fully plasticized and uniformly mixed materials through a die to form the final product. Its working principle mainly involves the rotation of the screw, which transports, compacts, and melts the material within the barrel, and then extrudes it from the die under certain pressure. After subsequent shaping and cooling processes, the desired product is finally produced.

[0003] A search revealed that patent document CN214137259U discloses a barrel heating device for a rubber and plastic extruder, comprising a worktable, a first rotary motor, a gearbox, a barrel, a heating component, and a feeding component. The heating component is mounted on the top outer wall of the worktable. The barrel is fixedly mounted on the top outer wall of the worktable located on one side of the heating component. The feeding component is welded through the top outer wall of the barrel. The gearbox is fixedly mounted on the top outer wall of the worktable located on one side of the barrel. The first rotary motor is fixedly mounted on the top outer wall of the worktable located on one side of the gearbox. A hot water tank is fixedly mounted on the top outer wall of the worktable located on one side of the barrel. Heating plates are distributed and fixedly mounted on the inner wall of one side of the hot water tank. A water pump is fixedly mounted on the top outer wall of the worktable located on one side of the hot water tank. The heating component of this invention provides good and uniform heating of the barrel, effectively preventing material solidification, improving product quality, and increasing equipment efficiency.

[0004] However, the aforementioned patent also has the following drawbacks: While the design of having two motors driving the extruder and the feeding device separately provides independent control and operational flexibility, it may also have some potential drawbacks. First, synchronization is difficult to guarantee: Since two motors drive the extruder and the feeding device separately, it is necessary to ensure synchronization in speed and power output. Improper coordination may lead to a mismatch between the extrusion speed and the feeding speed, thus affecting the quality and yield of the extruded product. Not only does this increase control complexity, but the simultaneous operation of two motors also increases overall energy consumption. Therefore, an extruder barrel is proposed to address the problems mentioned above. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an extruder barrel, which has the advantages of being practical and easy to use, and solves the coordination problem of the two sets of motors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an extruder barrel, comprising an extruder barrel fixed on a frame and a drive motor fixed on the extruder barrel, wherein a material conveying structure is fixed on the upper surface of one end of the extruder barrel;

[0007] The material conveying structure includes a hopper fixedly connected to the upper surface of the extruder barrel and a material separator rotor rotatably disposed inside the hopper. A transmission structure is installed between the material separator rotor and the screw inside the extruder barrel. The transmission structure consists of two second synchronous pulleys and a second synchronous belt.

[0008] A temperature control structure is installed on the frame, and the temperature control structure is equipped with a stirring shaft. A synchronization structure is provided between the stirring shaft and the drive motor.

[0009] Furthermore, the drive motor is a dual-shaft motor, which is bolted to the outer surface of one end of the extruder barrel, and one of the output shafts of the drive motor is connected and fixed to the screw inside the extruder barrel.

[0010] Furthermore, a synchronous shaft is fixed inside each of the two second synchronous pulleys, and the two synchronous shafts are respectively fixed to the other end of the screw and the material separator rotor. A control device is fixed on the outer surface of the frame.

[0011] Furthermore, the hopper has a volumetric cavity adapted to the material separator rotor, and the outer surface of the material separator rotor is provided with four horizontal plates that are equidistantly distributed, and each of the four horizontal plates has a scraper fixed on the side near the volumetric cavity.

[0012] Furthermore, the temperature control structure includes a temperature control box fixed on the frame, a temperature control water pipe wound around and installed on the outer surface of the extruder barrel, and a water supply pipe fixedly connected between the temperature control box and the temperature control water pipe.

[0013] Furthermore, a sealing sleeve for heat preservation is detachably installed on the outer surface of the extruder barrel, and the sealing sleeve is composed of a sleeve with a semi-circular arc shape, and an installation hole for disassembly and assembly is provided between the two sleeves.

[0014] Furthermore, the sealing sleeve is hollow inside, and an insulation pad is embedded in the sealing sleeve.

[0015] Furthermore, the synchronization structure includes a first synchronization pulley fixed to the stirring shaft and another output shaft of the drive motor, and a first synchronization belt is drivingly connected between the two first synchronization pulleys.

[0016] Compared with the prior art, the present invention provides an extruder barrel with the following advantages:

[0017] 1. The extruder barrel, through the transmission structure of synchronous pulley and synchronous belt, ensures the synchronous rotation between the screw and the material separator rotor, improving the uniformity and stability of material conveying. The scraper design on the material separator rotor helps to prevent material from clogging in the hopper, ensuring that the material enters the extruder barrel smoothly.

[0018] 2. The extruder barrel is driven by a dual-shaft motor, which can simultaneously drive the screw and the stirring shaft to achieve the dual functions of extrusion and stirring. The temperature control water pipe is wound around and installed on the outer surface of the extruder barrel to ensure uniform heat distribution, which helps to reduce temperature fluctuations during the extrusion process, thereby improving the uniformity and consistency of the extrudate.

[0019] 3. The extruder barrel is driven by a dual-shaft drive motor to rotate the screw and the material separator rotor synchronously. This design enables efficient and continuous material supply, which helps to improve the extruder's production efficiency, shorten the production cycle, and reduce production costs. The design structure is relatively simple, easy to disassemble and assemble, and convenient for daily maintenance. At the same time, it has high coordination, which reduces equipment maintenance costs and improves equipment availability and production efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the temperature-controlled water pipe of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the sealing sleeve of this utility model;

[0023] Figure 4 This is a schematic diagram of the material-separating rotor of this utility model.

[0024] In the diagram: 1. Frame; 2. Extruder barrel; 3. Drive motor; 4. Hopper; 5. Temperature control box; 6. Temperature-controlled water pipe; 7. Water supply pipe; 8. Stirring shaft; 9. First synchronous pulley; 10. First synchronous belt; 11. Sealing sleeve; 12. Volumetric cavity; 13. Material separator rotor; 14. Second synchronous pulley; 15. Second synchronous belt; 16. Scraper; 17. Mounting hole. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 4An extruder barrel includes an extruder barrel 2 fixed to a frame 1 and a drive motor 3 fixed to the extruder barrel 2. A material conveying structure is fixed to the upper surface of one end of the extruder barrel 2. The material conveying structure includes a hopper 4 fixedly connected to the upper surface of the extruder barrel 2 and a material separator rotor 13 rotatably disposed inside the hopper 4. A transmission structure is installed between the material separator rotor 13 and the screw inside the extruder barrel 2. The transmission structure consists of two second synchronous pulleys 14 and a second synchronous belt 15.

[0027] It should be noted that the drive motor 3 is a dual-shaft motor. The drive motor 3 is bolted to the outer surface of one end of the extruder barrel 2, and one of its output shafts is connected and fixed to the screw inside the extruder barrel 2. Synchronous shafts are fixed inside both second synchronous pulleys 14, and these two shafts are respectively fixed to the other end of the screw and the material separator rotor 13. Control equipment is fixed to the outer surface of the frame 1. By driving the screw and material separator rotor 13 to rotate synchronously through the dual-shaft drive motor 3, this design achieves efficient and continuous material supply. This helps improve the extruder's production efficiency, shorten the production cycle, and reduce production costs. The design structure is relatively simple, easy to disassemble and assemble, convenient for daily maintenance and upkeep, and highly coordinated. This reduces equipment maintenance costs and improves equipment availability and production efficiency.

[0028] Specifically, the hopper 4 has a volumetric cavity 12 adapted to the material separator rotor 13. The outer surface of the material separator rotor 13 is provided with four equally spaced horizontal plates, and a scraper 16 is fixed on the side of each of the four horizontal plates near the volumetric cavity 12. When the material separator rotor 13 rotates, since the space between two adjacent horizontal plates and the volumetric cavity 12 is always the same, the material entering the extruder barrel 2 is always the same, thus realizing the function of quantitative feeding. Furthermore, when the material separator rotor 13 rotates, the scraper 16 can remove the material remaining in the volumetric cavity 12, thereby reducing the material residue in the volumetric cavity 12.

[0029] In this embodiment, a heating structure is installed on the frame 1, and the heating structure is equipped with a stirring shaft 8. A synchronization structure is provided between the stirring shaft 8 and the drive motor 3. The heating structure includes a temperature control box 5 fixed to the frame 1, a temperature-controlled water pipe 6 wound around the outer surface of the extruder barrel 2, and a water supply pipe 7 fixedly connecting the temperature control box 5 and the temperature-controlled water pipe 6. The temperature-controlled water pipe 6 wound around the outer surface of the extruder barrel 2 ensures uniform heat distribution. This uniform heating helps reduce temperature fluctuations during extrusion, thereby improving the uniformity and consistency of the extrudate. Specifically, a sealing sleeve 11 for heat preservation is detachably installed on the outer surface of the extruder barrel 2. The sealing sleeve 11 consists of a semi-circular arc-shaped sleeve, and mounting holes 17 for disassembly and assembly are provided between the two sleeves. A heating plate, a temperature sensor, and a submersible pump are installed inside the temperature control box 5. There are two water supply pipes 7 to achieve water circulation. The heating plate, temperature sensor, and submersible pump are all conventional technologies known to the public in the existing technology field, therefore their specific structural components and working principles will not be described in detail in this article. The temperature control box 5 is equipped with an inlet pipe, a drain pipe, and a water level observation window.

[0030] It should be noted that the sealing sleeve 11 is hollow inside and has an embedded heat insulation pad. The synchronization structure includes a first synchronization pulley 9 fixed to the stirring shaft 8 and another output shaft of the drive motor 3, and a first synchronization belt 10 is connected between the two first synchronization pulleys 9. The stirring shaft 8 is bearing-mounted inside the temperature control box 5, and one end of the stirring shaft 8 extends to the outside of the temperature control box 5 and connects to the synchronization structure.

[0031] The working principle of the above embodiments is as follows:

[0032] In use, the material enters the extruder barrel 2 through the hopper 4. When the drive motor 3 starts, one of its output shafts drives the screw inside the extruder barrel 2 to rotate. At the same time, through the transmission structure consisting of two second synchronous pulleys 14 and a second synchronous belt 15, the rotational power of the screw is transmitted to the material separator rotor 13, causing the material separator rotor 13 to rotate inside the hopper 4. The scraper 16 on the material separator rotor 13 helps the material to enter the extruder barrel 2 evenly and prevents the material from clogging. Under the push of the screw, the material moves along the extruder barrel 2 to the other end.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extruder barrel comprising an extruder barrel fixed to a frame and a drive motor fixed to the extruder barrel, characterized in that: The upper surface of one end of the extruder barrel is fixed with a material conveying structure; The material conveying structure comprises a material bin fixedly connected to the upper surface of the extruder barrel and a material separating rotor rotatably arranged in the material bin, and a transmission structure is arranged between the material separating rotor and the screw in the extruder barrel, wherein the transmission structure comprises two second synchronous pulleys and a second synchronous belt. A temperature control structure is arranged on the frame, and the temperature control structure is provided with a stirring shaft, and a synchronous structure is arranged between the stirring shaft and the driving motor.

2. An extruder barrel according to claim 1, characterized in that: The driving motor is a double-shaft motor, which is bolted to the outer surface of one end of the extruder barrel, and one of the output shafts of the driving motor is connected and fixed with the screw in the extruder barrel.

3. An extruder barrel according to claim 2, wherein: Two second synchronous pulleys are fixedly arranged in the two second synchronous pulleys, and the two synchronous shafts are respectively connected with the other end of the screw and the material separating rotor, and the outer surface of the frame is fixed with a control device.

4. An extruder barrel according to claim 1 wherein: The inside of the material bin is provided with a volume cavity matched with the material separating rotor, the outer surface of the material separating rotor is provided with four transverse plates distributed at equal intervals, and the side of the four transverse plates close to the volume cavity is fixed with a scraping strip.

5. An extruder barrel according to claim 1 wherein: The temperature control structure comprises a temperature control box fixed on the frame, a temperature control water pipe wound around the outer surface of the extruder barrel, and a water conveying pipe fixedly connected between the temperature control box and the temperature control water pipe.

6. An extruder barrel according to claim 5, wherein: The outer surface of the extruder barrel is detachably provided with a sealing sleeve for heat preservation, and the sealing sleeve comprises two sleeve pipes with a semicircular arc shape, and mounting holes for disassembly and assembly are arranged between the two sleeve pipes.

7. An extruder barrel according to claim 6, wherein: The sealing sleeve is hollow, and the sealing sleeve is embedded with a heat preservation pad.

8. An extruder barrel according to claim 2, wherein: The synchronous structure comprises a first synchronous pulley fixed on the stirring shaft and the other output shaft of the driving motor, and a first synchronous belt is transmissionally connected between the two first synchronous pulleys.

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