Extruder screw cleaning device

Abstract

The utility model relates to the technical field of extruders, and discloses an extruder screw cleaning device which comprises a machine barrel, a screw is arranged in the machine barrel, two symmetrically-arranged cleaning rollers are arranged at the bottom end of the outer surface of the machine barrel, and arc-shaped grooves are formed in the outer surfaces of the two cleaning rollers. According to the extruder screw cleaning device, the two cleaning rollers with the arc-shaped grooves and the cleaning grooves are arranged and matched with the spraying pipe and the multiple nozzles on the outer surface of the spraying pipe, so that water can be symmetrically sprayed in two directions to clean a screw during cleaning, it is ensured that all parts of the screw can be fully flushed, and when the screw is not cleaned, the cleaning effect is good; through the arrangement of the arc-shaped groove and the sealing block, the machine barrel can be located on a complete circular inner wall, then normal conveying of materials is guaranteed, friction cleaning of the screw is achieved through the cleaning plate and the cleaning sponge below the portal frame, stains and residues on the surface of the screw can be more efficiently removed through the double cleaning mode, and the service life of the screw is prolonged. And the cleaning quality is further improved.

Description

Technical Field

[0001] This application relates to the field of extruder technology, specifically to an extruder screw cleaning device. Background Technology

[0002] Extrusion molding equipment mainly consists of two parts: the main machine and the auxiliary machine. The main machine is called the extruder, which is composed of the extrusion system (screw, barrel), feeding device, etc. The screw is the core of the extruder and has a very important impact on the quality and output of the extruded products.

[0003] An existing patent (publication number: CN221697822U) discloses an extruder screw cleaning device, including a base. Two support plates are fixedly installed on the top of the base, and a support rod is movably installed on the top of the base. An extruder body is fixedly installed on the top of the two support plates. A functional structure is fixedly installed on the right outer surface of the extruder body, and a feeding hopper is fixedly installed on the top of the extruder body. In use, when the extruder is operating, a sealing cover seals the cleaning port. When cleaning of the extruder body is required, a functional motor is activated, driving a functional gear to rotate. The functional gear meshes with a gear plate, thereby moving the sealing cover and opening it. A water pump, in conjunction with a water guide pipe, directs water from the storage tank to a distributor for diversion, and then sprays the water out through the distributor pipe and spray nozzles onto the cleaning port.

[0004] The aforementioned cleaning device sprays water through a diversion pipe and a spray nozzle to clean the cleaning port. However, during the cleaning process, because the spray angle of the spray nozzle is fixed, some areas of the screw are not rinsed, thus reducing the cleaning effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides an extruder screw cleaning device, which has advantages such as good cleaning effect and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: an extruder screw cleaning device, comprising a barrel, a screw disposed inside the barrel, two symmetrically arranged cleaning rollers disposed at the bottom of the outer surface of the barrel, an arc-shaped groove and a cleaning groove formed on the outer surface of each of the two cleaning rollers, a spray pipe fixedly connected to the left and right interiors of each of the two cleaning rollers, the spray pipe being located inside the cleaning groove, a plurality of nozzles fixedly connected to the outer surface of the spray pipe, and two fixed brackets fixedly connected to both ends of the barrel, with each end of the spray pipe rotatably connected to the fixed bracket adjacent to it.

[0007] A cleaning box is fixedly connected to the upper surface of the barrel. A sealing block is slidably connected inside the cleaning box. Two gantry frames are fixedly connected to the upper surface of the cleaning box. A cleaning plate is provided below the two gantry frames. A cleaning sponge is fixedly connected to the bottom of each of the two cleaning plates.

[0008] The above solution, by setting two cleaning rollers with arc-shaped grooves and cleaning channels, and cooperating with the spray pipe and multiple nozzles on its outer surface, enables symmetrical water spraying from two directions to clean the screw during cleaning, ensuring that all parts of the screw are thoroughly rinsed. When not cleaning, the arc-shaped grooves and the enclosed block ensure that the barrel is in a complete circular inner wall, thus guaranteeing the normal conveying of materials. The cleaning plate and cleaning sponge under the gantry frame achieve friction cleaning of the screw. This dual cleaning method can more efficiently remove stains and residues from the screw surface, further improving the cleaning quality.

[0009] Furthermore, two support legs are fixedly connected to the bottom of the barrel.

[0010] The above solution, through the setting of support legs, can support the barrel.

[0011] Furthermore, motors are mounted on the back of both of the rearmost mounting brackets, and the output ends of the two motors are respectively fixedly connected to the nozzles adjacent to them.

[0012] The above solution, through the setting of the motor, can provide power for the rotation of the cleaning roller.

[0013] Furthermore, the front ends of both nozzles are rotatably connected to connecting pipes.

[0014] The above solution, through the installation of connecting pipes, facilitates users' connection to external water supply pipes.

[0015] Furthermore, a set of fixing holes penetrating the cleaning box are provided at the top of the sealing block.

[0016] The above solution, with its fixing holes, makes it easy for users to fix the sealing block.

[0017] Furthermore, electric push rods are installed inside both of the gantry frames, and the output ends of both electric push rods are fixedly connected to the upper surface of the cleaning plate.

[0018] The above solution, through the setting of the electric actuator, can provide power for the up and down movement of the cleaning plate.

[0019] Furthermore, a control host is installed on one side of one of the gantry frames, and the motor and electric push rod are both electrically connected to the control host.

[0020] The above scheme allows for the control of the motor and electric actuator through the settings of the control host.

[0021] Furthermore, the inner wall of the barrel and the surface of the screw are both made into smooth surfaces.

[0022] The above solutions and settings can reduce material adhesion and lower the difficulty of cleaning.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This extruder screw cleaning device, by setting two cleaning rollers with arc-shaped grooves and cleaning grooves, in conjunction with a spray pipe and multiple nozzles on its outer surface, can achieve symmetrical water spraying from two directions during cleaning, ensuring that all parts of the screw are thoroughly rinsed. When not cleaning, the arc-shaped grooves and the sealing block can keep the barrel in a complete circular inner wall, thus ensuring normal material conveying. The cleaning plate and cleaning sponge under the gantry frame achieve friction cleaning of the screw. This dual cleaning method can more efficiently remove stains and residues from the screw surface, further improving the cleaning quality. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0026] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0027] Figure 3 This is a sectional view of the overall structure of this application from the front.

[0028] Figure 4 The cleaning roller structure of this application Figure 1 ;

[0029] Figure 5 The cleaning roller structure of this application Figure 2 .

[0030] In the picture:

[0031] 1. Barrel; 2. Screw; 3. Cleaning roller; 4. Arc groove; 5. Cleaning trough; 6. Spray pipe; 7. Nozzle; 8. Fixing frame; 9. Cleaning box; 10. Enclosing block; 11. Gantry frame; 12. Cleaning plate; 13. Cleaning sponge; 14. Support leg; 15. Motor; 16. Connecting pipe; 17. Fixing hole; 18. Electric actuator; 19. Control unit. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 4 and Figure 5 This embodiment of an extruder screw cleaning device includes a barrel 1, inside which a screw 2 is disposed. Two symmetrically arranged cleaning rollers 3 are disposed at the bottom of the outer surface of the barrel 1. The outer surfaces of the two cleaning rollers 3 are each provided with an arc-shaped groove 4 and a cleaning groove 5. Spray pipes 6 are fixedly connected to the left and right interiors of the two cleaning rollers 3. The spray pipes 6 are located inside the cleaning grooves 5. Multiple nozzles 7 are fixedly connected to the outer surface of the spray pipes 6. Two fixing frames 8 are fixedly connected to both ends of the barrel 1. The two ends of each spray pipe 6 are rotatably connected to the fixing frame 8 that is close to it. With the above arrangement, when cleaning the screw 2, the spray pipes 6 drive the cleaning rollers 3 to rotate, so that the nozzles 7 are located inside the barrel 1, thereby achieving the cleaning effect of spraying water on the screw 2.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The inner wall of the barrel 1 and the surface of the screw 2 are both made smooth. This design reduces the adhesion of materials and lowers the difficulty of cleaning. The front ends of the two nozzles 6 are rotatably connected to the connecting pipes 16. The connecting pipes 16 make it easy for users to connect to the external water supply pipes.

[0035] Please see Figure 1 , Figure 2 and Figure 3 A cleaning box 9 is fixedly connected to the upper surface of the barrel 1. A sealing block 10 is slidably connected inside the cleaning box 9. When the barrel 1 is in normal extrusion operation, the sealing block 10 can achieve the purpose of sealing the cleaning box 9. Two gantry frames 11 are fixedly connected to the upper surface of the cleaning box 9. A cleaning plate 12 is provided below the two gantry frames 11. A cleaning sponge 13 is fixedly connected to the bottom of each of the two cleaning plates 12. The cleaning sponge 13 can achieve the purpose of friction cleaning of the threaded rod and improve the cleaning effect. A set of fixing holes 17 penetrating the cleaning box 9 is opened at the top of the sealing block 10. The fixing holes 17 can facilitate the user to fix the sealing block 10.

[0036] Please see Figure 1 , Figure 2 and Figure 3Two support legs 14 are fixedly connected to the bottom of the barrel 1, which can support the barrel 1. Motors 15 are installed on the back of the two rearmost fixed frames 8. The output ends of the two motors 15 are fixedly connected to the nozzles 6 adjacent to them. The motors 15 can provide power for the rotation of the cleaning roller 3. Electric push rods 18 are installed inside the two gantry frames 11. The output ends of the two electric push rods 18 are fixedly connected to the upper surface of the cleaning plate 12. The electric push rods 18 can provide power for the up and down movement of the cleaning plate 12. A control host 19 is installed on one side of one of the gantry frames 11. The motors 15 and electric push rods 18 are electrically connected to the control host 19. The control host 19 can control the motors 15 and electric push rods 18.

[0037] This embodiment of an extruder screw cleaning device, by setting two cleaning rollers 3 with arc-shaped grooves 4 and cleaning grooves 5, and cooperating with the spray pipe 6 and multiple nozzles 7 on its outer surface, can achieve water spraying cleaning of the screw 2 in two directions during cleaning, ensuring that all parts of the screw 2 are thoroughly rinsed. When not cleaning, the setting of the arc-shaped grooves 4 and the sealing block 10 can make the barrel 1 be in a complete circular inner wall, thereby ensuring the normal conveying of materials. The cleaning plate 12 and cleaning sponge 13 under the gantry frame 11 realize friction cleaning of the screw 2. This dual cleaning method can more efficiently remove stains and residues on the surface of the screw 2, further improving the cleaning quality.

[0038] The working principle of the above embodiment is as follows: During cleaning, the control host 19 starts two motors 15. The output of the motors 15 drives the connected spray pipe 6 and cleaning roller 3 to start rotating. The rotation of the cleaning roller 3 causes the arc-shaped groove 4 and cleaning trough 5 on its outer surface to rotate accordingly, preparing for the subsequent water spraying cleaning. The cleaning trough 5 is located inside the barrel 1. The connecting pipe 16 is rotated to connect to the external water supply pipe to ensure sufficient water supply. At this time, the spray pipe 6 and the multiple nozzles 7 on its outer surface start spraying water, cooperating with the rotation of the screw 2 for rinsing. As the cleaning roller 3 rotates, the water curtain sprayed by the nozzles 7 can cover all directions. The screw 2 surface is rinsed from multiple angles to ensure that all parts of the screw 2 are thoroughly rinsed. Then, by disassembling the sealing block 10, the cleaning plate 12 and cleaning sponge 13 are moved downward into the cleaning box 9 by the electric push rod 18, so that the cleaning sponge 13 comes into contact with the screw 2. The friction of the cleaning sponge 13 can further remove stains and residues from the surface of the screw 2, achieving a double cleaning effect. After cleaning is completed, the motor 15 and the electric push rod 18 are turned off, the cleaning sponge 13 is reset, the sealing block 10 is reinstalled into the cleaning box 9, the cleaning box 9 is closed, and preparation is made for the next extrusion operation.

[0039] 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.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extruder screw cleaning device, comprising a barrel (1), characterized in that: The inside of the barrel (1) is provided with a screw (2), and the bottom of the outer surface of the barrel (1) is provided with two symmetrically arranged cleaning rollers (3). The outer surfaces of the two cleaning rollers (3) are provided with arc grooves (4) and cleaning grooves (5). The left and right interiors of the two cleaning rollers (3) are fixedly connected with nozzles (6). The nozzles (6) are located inside the cleaning grooves (5). The outer surface of the nozzles (6) is fixedly connected with multiple nozzles (7). The two ends of the barrel (1) are fixedly connected with two fixing frames (8). The two ends of each nozzle (6) are rotatably connected to the fixing frame (8) that is close to it. The upper surface of the barrel (1) is fixedly connected to a cleaning box (9), and a sealing block (10) is slidably connected inside the cleaning box (9). Two gantry frames (11) are fixedly connected to the upper surface of the cleaning box (9), and a cleaning plate (12) is provided below the two gantry frames (11). A cleaning sponge (13) is fixedly connected to the bottom of each of the two cleaning plates (12).

2. The extruder screw cleaning device according to claim 1, characterized in that: The bottom of the barrel (1) is fixedly connected to two support legs (14).

3. The extruder screw cleaning device according to claim 1, characterized in that: Motors (15) are mounted on the back of the two rearmost mounting brackets (8), and the output ends of the two motors (15) are fixedly connected to the nozzles (6) adjacent to them.

4. The extruder screw cleaning device according to claim 1, characterized in that: The front ends of both nozzles (6) are rotatably connected to connecting pipes (16).

5. The extruder screw cleaning device according to claim 1, characterized in that: The top of the enclosed block (10) is provided with a set of fixing holes (17) that penetrate the cleaning box (9).

6. The extruder screw cleaning device according to claim 1, characterized in that: Both of the gantry frames (11) are equipped with electric push rods (18), and the output ends of both electric push rods (18) are fixedly connected to the upper surface of the cleaning plate (12).

7. The extruder screw cleaning device according to claim 1, characterized in that: One of the gantry frames (11) is equipped with a control host (19) on one side, and the motor (15) and electric push rod (18) are electrically connected to the control host (19).

8. The extruder screw cleaning device according to claim 1, characterized in that: The inner wall of the barrel (1) and the surface of the screw (2) are both made smooth.

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