A twin screw extruder with easy cleaning

Abstract

The utility model relates to double screw cleaning technical field discloses a double screw extruder convenient to clean, including the shell, the top of shell near the middle portion fixedly connected with the water storage tank, the front and rear ends of water storage tank all are linked with a plurality of L type water pipes, the L type water pipe's near the middle portion rotationally connected with the valve, the bottom end of L type water pipe near the middle portion is linked with the horizontal water pipe, the horizontal water pipe's near the middle portion all are linked with a plurality of shower nozzles, the shower nozzle's near the middle portion fixedly connected with the filter layer, the front and rear ends of shell all are set up a plurality of round holes no.

Description

Technical Field

[0001] This utility model relates to the field of twin-screw extruder cleaning technology, and in particular to a twin-screw extruder that is easy to clean. Background Technology

[0002] In industrial production, ease of cleaning of material processing equipment is crucial. This easy-to-clean twin-screw extruder is an innovative product that solves this cleaning problem. It mainly consists of a barrel, two screws, a drive unit, and a cleaning device. The screws are located inside the barrel and are driven by the drive unit. The cleaning device is the key to easy cleaning, with a unique and efficient cleaning principle. During cleaning, the flushing mechanism starts first. The pressure pump delivers the cleaning solution from the storage tank to the flushing nozzles distributed throughout the barrel through the supply pipeline, performing a preliminary flush on the barrel and screws. At the same time, the cleaning brush assembly starts working. The adjustment mechanism can adjust the fit between the main cleaning brush and the screw groove according to the actual situation, thoroughly removing material residues in the screw groove. The secondary cleaning brush fits tightly against the inner wall of the barrel, leaving no residue untouched. The wastewater and residue after cleaning enter the wastewater collection box through the drain port of the wastewater discharge mechanism at the bottom of the barrel. The cleaning brush and flushing mechanism work together to ensure thorough cleaning of the equipment's interior, effectively guaranteeing product quality and extending the equipment's service life.

[0003] A search revealed Chinese Patent Publication No. CN213972466U, which discloses an easy-to-clean twin-screw extruder. This easy-to-clean twin-screw extruder includes: a twin-screw extruder; a drive assembly, the bottom of which is fixedly connected to the top of the twin-screw extruder; a cleaning assembly, the right side of which is disposed on the left side of the drive assembly; a moving assembly, the left side of which is fixedly connected to the right side of the drive assembly; and a lifting assembly, the top of which is fixedly connected to the bottom of the moving assembly. This utility model provides an easy-to-clean twin-screw extruder that, through the coordinated use of the twin-screw extruder, drive assembly, and cleaning assembly, allows the device to clean the feed inlet, ensuring no residual raw material is mixed. It is also easy to install and disassemble, and has high applicability. The coordinated use of the drive assembly, moving assembly, and lifting assembly enables the device to clean the vacuum orifice, ensuring it does not become clogged. However, while this device achieves the cleaning of the vacuum orifice and prevents clogging, it cannot use water spraying to rinse and clean the interior of the twin screws. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a convenient twin-screw extruder, aiming to improve the problem that the interior of the twin screws cannot be rinsed and cleaned by spraying water in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a twin-screw extruder for easy cleaning, comprising a housing, a water tank fixedly connected to the top of the housing near the middle, multiple L-shaped water pipes connected to both ends of the water tank, a valve rotatably connected to the middle of each L-shaped water pipe, a horizontal water pipe connected to the bottom of each L-shaped water pipe near the middle, multiple nozzles connected to the middle of each horizontal water pipe, a filter layer fixedly connected to the middle of each nozzle, multiple circular holes I opened at both the front and rear ends of the housing, the inner wall of each circular hole I fixedly connected to the outer wall of the nozzle, multiple circular holes II opened on both the front and rear sides of the bottom of the housing, multiple drainage grooves fixedly connected to both the front and rear sides of the bottom of the housing, and multiple vibration damping mechanisms provided at the middle of the bottom of the housing, the vibration damping mechanisms being used to reduce the external force caused by vibration.

[0006] The above technical solution involves the following: A water tank is fixedly connected to the top of the outer casing near its center. Multiple L-shaped water pipes are connected to both ends of the water tank. These L-shaped water pipes play a crucial functional role. A valve is rotatably connected to the center of each L-shaped water pipe, allowing users to easily control the water flow. A horizontal water pipe is connected to the bottom of the L-shaped water pipes near its center, and multiple nozzles are connected to the horizontal water pipes near their center. A filter layer is fixedly connected to the center of each nozzle, ensuring the cleanliness and quality of the sprayed water. Furthermore, multiple circular holes (I) are provided at the front and rear ends of the outer casing. The inner walls of these holes are fixedly connected to the outer walls of the nozzles, enhancing structural stability. Multiple circular holes (II) are provided on the front and rear sides of the bottom interior of the outer casing. Finally, multiple drainage channels are fixedly connected to the front and rear sides of the bottom exterior wall of the outer casing, ensuring the equipment's drainage efficiency.

[0007] As a further description of the above technical solution: The vibration damping mechanism includes a column, the top of which is fixedly connected to the bottom of the outer shell near the middle. A cylindrical hole is opened inside the column, and a sliding column is slidably connected to the inner wall of the cylindrical hole. A spring is slidably connected to the outer wall of the sliding column, and a base is fixedly connected to the bottom of the spring. A square hole is opened inside the base.

[0008] The above technical solution describes a vibration damping mechanism that includes a column. The top of the column, near its center, is tightly connected to the bottom of the outer shell via a fixed connection. A cylindrical hole is formed inside the column, and a sliding column is slidably connected to the inner wall of this hole, allowing the sliding column to slide freely up and down within the hole. A spring is further slidably connected to the outer wall of the sliding column, providing a certain elastic force to achieve the vibration damping effect. In addition, the bottom of the spring is fixedly connected to a base, which also has a square hole inside to facilitate the connection and fixation of other components.

[0009] As a further description of the above technical solution: A water filling hole is fixedly connected to the front right end of the water storage tank, and a square hole is provided on the top left side of the outer shell.

[0010] Through the above technical solution: a water filling hole is fixedly connected to the front right side of the water tank, making it convenient to add water to the water tank. In addition, a square hole II is opened on the top left side of the outer shell, which provides space for the water filling hole of the water tank.

[0011] As a further description of the above technical solution: A baffle is fixedly connected to the inside left side of the outer casing, and a fixing block is fixedly connected to the left side of the baffle.

[0012] Through the above technical solution: a baffle is fixedly connected to the inner left side of the shell. This baffle provides additional support and protection. A fixing block is fixedly connected to the left edge of the baffle. This fixing block further enhances the stability and durability of the baffle and ensures the reliability of the entire structure during use.

[0013] As a further description of the above technical solution: A motor is fixedly connected to the top of the fixed block, a gear is fixedly connected to the output end of the motor, and a threaded rod is fixedly connected to the right side of the gear.

[0014] Through the above technical solution: the top of the fixed block is fixedly connected to the motor. This connection method ensures the stability of the motor. The motor, as a power source, has its output end fixedly connected to the gear, so that the power of the motor can be effectively transmitted to the gear. A threaded rod is fixedly connected to the right side of the gear, so that the rotational motion of the motor can be converted into the linear motion of the threaded rod, thereby realizing a specific mechanical function.

[0015] As a further description of the above technical solution: The baffle has a circular hole three inside, and the inner wall of the circular hole three is rotatably connected to the right side of the motor.

[0016] The above technical solution involves opening three circular holes inside the baffle. The inner walls of these holes are precisely rotated and connected to the right side of the motor, ensuring a tight fit between the baffle and the motor, thereby improving the stability and operating efficiency of the overall device.

[0017] As a further description of the above technical solution: A retaining ring is rotatably connected to the left side of the outer wall of the threaded rod, and the bottom of the retaining ring is fixedly connected to the bottom of the inner wall of the outer shell.

[0018] Through the above technical solution: the left side of the outer wall of the threaded rod is connected to the retaining ring by rotation. This connection method allows the retaining ring to rotate freely on the outer wall of the threaded rod. The bottom of the retaining ring is fixedly connected to the bottom of the inner wall of the outer shell, ensuring that the retaining ring can be stably fixed inside the outer shell during operation, preventing it from being displaced or falling off when subjected to external forces, thereby ensuring the stability and reliability of the entire device.

[0019] As a further description of the above technical solution: The top left side of the outer casing is connected to a feed hole, and the bottom right side of the outer casing is connected to a discharge box.

[0020] The above technical solution involves a feed hole designed on the top left side of the outer casing, which allows materials and fluids to enter the casing from the outside. A discharge box is provided on the bottom right side of the outer casing. This design ensures the smooth flow of materials and fluids, while enabling the casing to effectively perform its intended function.

[0021] This utility model has the following beneficial effects: 1. In this utility model, when the inside of the outer shell is dirty and needs cleaning, the valve is opened, and the water in the water tank flows into the L-shaped water pipe under the control of the valve. The L-shaped water pipe then carries the water to the horizontal water pipe, which is then filled with water. The water in the horizontal water pipe is then sprayed into the inside of the outer shell through the nozzle to clean the interior. At the same time, the cleaned water flows to both sides through the inclined surface of the outer shell, and the dirty water flows into the drainage trough through the circular holes on both sides of the outer shell and is then drained away. After cleaning, this invention achieves the function of quickly and conveniently cleaning and rinsing the interior of the outer shell when cleaning is needed.

[0022] 2. In this utility model, the column will move up and down on the sliding column through the internal cylindrical hole. The sliding column is connected to the inside of the base. At this time, the sliding column and the column will not be offset. The column will press against the spring on the outer wall of the sliding column, and the spring will be deformed. When the external force disappears, the spring will return to its original position and drive the column to move upward, so that it returns to its original position on the sliding column. This realizes that when vibration occurs, the action of the spring can reduce the external force on the whole, making the device more stable in operation. Attached Figure Description

[0023] Figure 1 A front perspective view of a twin-screw extruder that is easy to clean, as proposed in this utility model; Figure 2 This is a partial exploded view of the spring structure of a twin-screw extruder that is easy to clean, as proposed in this utility model. Figure 3 This is a partial structural exploded view of the threaded rod of a twin-screw extruder that is easy to clean, as proposed in this utility model. Figure 4 This is a partial structural diagram of the threaded rod of a twin-screw extruder that is easy to clean, as proposed in this utility model. Figure 5 This is a partial structural exploded view of the drainage trough of a twin-screw extruder that is easy to clean, as proposed in this utility model.

[0024] Legend: 1. Outer shell; 2. Vibration damping mechanism; 201. Column; 202. Cylindrical hole; 203. Sliding column; 204. Spring; 205. Base; 206. Square hole one; 3. Water storage tank; 4. L-shaped water pipe; 5. Valve; 6. Horizontal water pipe; 7. Nozzle; 8. Filter layer; 9. Circular hole one; 10. Circular hole two; 11. Drainage trough; 12. Water filling hole; 13. Square hole two; 14. Fixing block; 15. Motor; 16. Baffle; 17. Circular hole three; 18. Gear; 19. Retaining ring; 20. Threaded rod; 21. Feed hole; 22. Discharge box. 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 the appendix Figure 1 Appendix Figure 4 and attached Figure 5This utility model provides an embodiment of a convenient-to-clean twin-screw extruder, comprising a housing 1, a water storage tank 3 fixedly connected to the top of the housing 1 near the middle for water storage, multiple L-shaped water pipes 4 connected to both ends of the water storage tank 3, a valve 5 rotatably connected to the middle of the L-shaped water pipes 4 for controlling water flow, a horizontal water pipe 6 connected to the bottom of the L-shaped water pipes 4 near the middle, multiple nozzles 7 connected to the middle of the horizontal water pipes 6 for spraying water, a filter layer 8 fixedly connected to the middle of the nozzles 7 for filtering, multiple circular holes 9 opened at both ends of the housing 1, the inner wall of the circular holes 9 fixedly connected to the outer wall of the nozzles 7, multiple circular holes 10 opened at both the front and rear sides of the bottom of the housing 1, multiple drainage grooves 11 fixedly connected to the front and rear sides of the bottom of the outer wall of the housing 1 for easier drainage, and multiple vibration damping mechanisms 2 provided at the middle of the bottom of the housing 1 for reducing external forces caused by vibration. Specifically, a water storage tank 3 is fixedly connected to the top of the outer casing 1 near the center. Multiple L-shaped water pipes 4 are connected to both the front and rear ends of the water storage tank 3. These L-shaped water pipes 4 play a crucial functional role. A valve 5 is rotatably connected to the center of each L-shaped water pipe 4, allowing users to easily control the water flow. A horizontal water pipe 6 is connected to the bottom of the L-shaped water pipe 4 near the center. Multiple nozzles 7 are connected to the center of each horizontal water pipe 6. A filter layer 8 is fixedly connected to the center of each nozzle 7, ensuring the cleanliness and quality of the sprayed water. Furthermore, multiple circular holes 9 are provided at the front and rear ends of the outer casing 1. The inner walls of the circular holes 9 are fixedly connected to the outer walls of the nozzles 7, enhancing structural stability. Multiple circular holes 10 are provided on the front and rear sides of the bottom interior of the outer casing 1. Finally, multiple drainage channels 11 are fixedly connected to the front and rear sides of the bottom exterior wall of the outer casing 1, ensuring the drainage efficiency of the equipment.

[0027] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The vibration damping mechanism 2 includes a column 201. The top of the column 201 is fixedly connected to the bottom of the outer shell 1 near the middle. A cylindrical hole 202 is opened inside the column 201 to make the overall connection more stable. A sliding column 203 is slidably connected to the inner wall of the cylindrical hole 202. A spring 204 is slidably connected to the outer wall of the sliding column 203 to provide elastic support for the whole. A base 205 is fixedly connected to the bottom of the spring 204. A square hole 206 is opened inside the base 205 to make the overall connection more stable. Specifically, the vibration damping mechanism 2 includes a column 201. The top of the column 201, near its center, is tightly connected to the bottom of the outer shell 1 by a fixed connection. A cylindrical hole 202 is opened inside the column 201. A sliding column 203 is slidably connected to the inner wall of the cylindrical hole 202, allowing the sliding column 203 to slide freely up and down within the cylindrical hole 202. A spring 204 is further slidably connected to the outer wall of the sliding column 203. This spring 204 can provide a certain elastic force to achieve the vibration damping effect. In addition, the bottom of the spring 204 is fixedly connected to a base 205. The base 205 also has a square hole 206 inside to facilitate the connection and fixation of other components.

[0028] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 A water filling hole 12 is fixedly connected to the front right side of the water storage tank 3. A square hole 13 is opened on the top left side of the outer shell 1. A baffle 16 is fixedly connected to the left side of the inner side of the outer shell 1, which serves as a shield. A fixing block 14 is fixedly connected to the left side of the baffle 16. A motor 15 is fixedly connected to the top of the fixing block 14, which provides a power source for the whole. A gear 18 is fixedly connected to the output end of the motor 15. A threaded rod 20 is fixedly connected to the right side of the gear 18, which makes the overall connection more stable. Specifically, a water inlet 12 is fixedly connected to the front right side of the water tank 3, making it convenient to add water to the water tank 3. In addition, a square hole 13 is provided on the top left side of the outer shell 1, which provides space for the water inlet 12 of the water tank 3. A baffle 16 is fixedly connected to the left side of the inner side of the outer shell 1. This baffle 16 provides additional support and protection. A fixing block 14 is fixedly connected to the left edge of the baffle 16. This fixing block 14 further enhances the stability and durability of the baffle 16, ensuring the reliability of the entire structure during use. The top of the fixing block 14 is fixedly connected to the motor 15. This connection method ensures the stability of the motor 15. The motor 15 serves as a power source, and its output end is fixedly connected to the gear 18, so that the power of the motor 15 can be effectively transmitted to the gear 18. A threaded rod 20 is fixedly connected to the right side of the gear 18, so that the rotational motion of the motor 15 can be converted into the linear motion of the threaded rod 20, thereby realizing a specific mechanical function.

[0029] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5The baffle 16 has a circular hole 17 inside. The inner wall of the circular hole 17 is rotatably connected to the right side of the motor 15, making the overall connection more stable. The outer left side of the threaded rod 20 is rotatably connected to the retaining ring 19. The bottom of the retaining ring 19 is fixedly connected to the bottom of the inner wall of the outer shell 1. The top left side of the outer shell 1 is connected to the feed hole 21, and the bottom right side of the outer shell 1 is connected to the discharge box 22, making the overall connection more stable. Specifically, three circular holes 17 are opened inside the baffle 16. The inner wall of the circular holes 17 is precisely rotated and connected to the right side of the motor 15, ensuring a tight fit between the baffle 16 and the motor 15, thereby improving the stability and operating efficiency of the overall device. The left side of the outer wall of the threaded rod 20 is connected to the retaining ring 19 by rotation. This connection method allows the retaining ring 19 to rotate freely on the outer wall of the threaded rod 20. The bottom of the retaining ring 19 is fixedly connected to the bottom of the inner wall of the outer shell 1, ensuring that the retaining ring 19 can be stably fixed inside the outer shell 1 during operation, preventing it from being displaced or falling off when subjected to external forces, thereby ensuring the stability and reliability of the entire device. A feed hole 21 is designed at the top left side of the outer shell 1, which allows materials and fluids to enter the interior of the outer shell 1 from the outside. A discharge box 22 is provided at the bottom right side of the outer shell 1. This design ensures the smooth flow of materials and fluids, while enabling the outer shell 1 to effectively perform its intended function.

[0030] Working principle: After the internal extrusion process, the inside of the outer shell 1 becomes dirty and needs cleaning. At this time, valve 5 is opened, and the water in the water tank 3 flows into the L-shaped water pipe 4 under the control of valve 5. The L-shaped water pipe 4 then carries the water to the horizontal water pipe 6, which is filled with water. The water in the horizontal water pipe 6 is then sprayed into the inside of the outer shell 1 through the nozzle 7 to clean the inside. At the same time, the cleaned water flows to both sides through the inclined surface of the outer shell 1, and the dirty water flows into the drainage trough 11 through the circular holes 10 on both sides of the outer shell 1 and is then drained away. After cleaning is completed, valve 5 is closed, and the water in the water tank 3 can no longer flow out. At this time, the extrusion operation can continue. This achieves the function of quickly and conveniently cleaning and rinsing the inside of the outer shell 1 when cleaning is needed. When vibration occurs, the upright column 201 will move up and down on the sliding column 203 through the internal cylindrical hole 202. The sliding column 203 is connected to the inside of the base 205. At this time, the sliding column 203 and the upright column 201 will not be offset. The upright column 201 will press against the spring 204 on the outer wall of the sliding column 203. The spring 204 will be deformed by compression, reducing the force it receives and achieving a buffering effect. When the external force disappears, the spring 204 will return to its original position and drive the upright column 201 to move upward, so that it returns to its original position on the sliding column 203. This realizes that when vibration occurs, the action of the spring 204 can reduce the external force received by the whole, making the device operate more stably.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A twin-screw extruder that is easy to clean, comprising a housing (1), characterized in that: A water tank (3) is fixedly connected to the top of the outer shell (1) near the middle. Multiple L-shaped water pipes (4) are connected to both the front and rear ends of the water tank (3). A valve (5) is rotatably connected to the L-shaped water pipe (4) near the middle. A horizontal water pipe (6) is connected to the bottom of the L-shaped water pipe (4) near the middle. Multiple nozzles (7) are connected to the horizontal water pipe (6) near the middle. A filter layer (8) is fixedly connected to the nozzle (7) near the middle. Multiple circular holes (9) are opened at the front and rear ends of the outer shell (1). The inner wall of the circular hole (9) is fixedly connected to the outer wall of the nozzle (7). Multiple circular holes (10) are opened on the front and rear sides of the bottom of the inner part of the outer shell (1). Multiple drainage grooves (11) are fixedly connected to the front and rear sides of the bottom of the outer wall of the outer shell (1). Multiple vibration damping mechanisms (2) are provided at the middle of the bottom of the outer shell (1). The vibration damping mechanism (2) is used to reduce the external force caused by vibration.

2. The twin-screw extruder for easy cleaning according to claim 1, characterized in that: The vibration damping mechanism (2) includes a column (201), the top of the column (201) is fixedly connected to the bottom of the outer shell (1) near the middle, a cylindrical hole (202) is opened inside the column (201), a sliding column (203) is slidably connected to the inner wall of the cylindrical hole (202), a spring (204) is slidably connected to the outer wall of the sliding column (203), a base (205) is fixedly connected to the bottom of the spring (204), and a square hole (206) is opened inside the base (205).

3. The easy-to-clean twin-screw extruder according to claim 1, characterized in that: The water storage tank (3) has a water filling hole (12) fixedly connected to the front side of the right end, and a square hole (13) is opened on the top left side of the outer shell (1).

4. The twin-screw extruder for easy cleaning according to claim 1, characterized in that: A baffle (16) is fixedly connected to the inside left side of the outer shell (1), and a fixing block (14) is fixedly connected to the left side of the baffle (16).

5. A convenient-to-clean twin-screw extruder according to claim 4, characterized in that: A motor (15) is fixedly connected to the top of the fixed block (14), and a gear (18) is fixedly connected to the output end of the motor (15). A threaded rod (20) is fixedly connected to the right side of the gear (18).

6. A twin-screw extruder for easy cleaning according to claim 4, characterized in that: The baffle (16) has a circular hole three (17) inside, and the inner wall of the circular hole three (17) is rotatably connected to the right side of the motor (15).

7. A convenient-to-clean twin-screw extruder according to claim 5, characterized in that: A retaining ring (19) is rotatably connected to the left side of the outer wall of the threaded rod (20), and the bottom of the retaining ring (19) is fixedly connected to the bottom of the inner wall of the outer shell (1).

8. A convenient-to-clean twin-screw extruder according to claim 1, characterized in that: The top left side of the outer shell (1) is connected to a feed hole (21), and the bottom right side of the outer shell (1) is connected to a discharge box (22).

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