Screw cleaning device

Abstract

The utility model provides a screw cleaning device, and belongs to the technical field of plastic particle processing. The cleaning device comprises a fixed base, two fixed plates are oppositely arranged on the fixed base, and a movable sliding rod and a movable lead screw are arranged between the two fixed plates; the copper brush cleaning device is movably arranged on the movable sliding rod and the movable lead screw; and the air pressure cleaning device is movably arranged on the movable sliding rod and the movable lead screw. The blowing and brushing integrated structure is adopted, after copper brush cleaning is completed, brushed chippings are blown off through air pressure air injection, cleaning can be carried out through brushing and blowing at the same time, cleaning can be carried out through brushing first and then blowing or brushing first and then blowing, and a proper mode can be selected at will for cleaning according to the attachment condition of a screw rod; the movable lead screw is adopted for providing power for the copper brush cleaning device and the air pressure cleaning device, the cleaning position can be determined according to the cleaning condition, repeated cleaning of the part is avoided, cleaning is more accurate, and higher controllability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic particle processing, and in particular relates to a screw cleaning device. Background Art

[0002] Extrusion molding is one of the important methods of plastic molding. In the plastic processing industry, the extruder is an essential processing equipment, and the screw is the key component of the extruder. The screw drives the plastic to move in the barrel and plays the role of pressurization, heat increase and shearing.

[0003] In the process of plastic production and processing, it is necessary to change the formula, change the material, etc., so the cleaning of the extruder, that is, the screw cleaning, is relatively frequent and important, especially in some masterbatch plastic particle processing industries, the color change of the masterbatch, the change of material performance, all require the equipment to be cleaned. In this process, the use of resin to wash the car is inefficient and will cause a lot of waste, so the screw is usually pulled out for cleaning. Most of the existing cleaning methods are manual grinding, high-pressure water washing, high-pressure air washing, etc. Among them, manual grinding is inefficient, and there are certain risks in manual operation. High-pressure water washing and high-pressure air washing are relatively complicated and cause energy waste. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a screw cleaning device, which adopts an integrated blowing and brushing structure. After the copper brush finishes cleaning the screw, the debris brushed off is blown away by air pressure jet. Brushing and blowing at the same time can be achieved, or brushing first and then blowing, or blowing first and then brushing can be performed for cleaning. The appropriate cleaning method can be selected according to the screw attachment situation.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a screw cleaning device, comprising:

[0007] A fixed base, wherein two fixed plates are arranged opposite to each other on the fixed base, and a movable slide rod and a movable screw rod are arranged between the two fixed plates;

[0008] A copper brush cleaning device, movably arranged on the movable slide rod and the movable lead screw;

[0009] The pneumatic cleaning device is movably arranged on the movable sliding rod and the movable screw rod.

[0010] The further improvement of the utility model is:

[0011] Two movable slide bars are arranged in parallel between the upper parts of the two fixed plates, and two movable slide bars are arranged in parallel between the lower parts of the two fixed plates, and the two movable slide bars at the lower parts are respectively located directly below the two movable slide bars at the upper parts.

[0012] The further improvement of the utility model is:

[0013] The two ends of the movable screw rod are respectively threadedly connected to the two fixed plates, and one end of the movable screw rod extends out of the fixed plate on the corresponding side and is connected to a handle.

[0014] The further improvement of the utility model is:

[0015] The air pressure cleaning device includes a first panel, on which a large circular through hole is arranged, a circle of air jet pipes is fixed on the circumference of the large circular through hole, a plurality of branch nozzles facing the central axis are evenly arranged on the air jet pipe along the circumference, each branch nozzle is provided with an air jet nozzle, and the plurality of air jet nozzles form a circumference for the screw to pass through.

[0016] The further improvement of the utility model is:

[0017] The jet pipe is connected to two air pipe connecting valves, which are arranged opposite to each other. The two air pipe connecting valves are connected to one end of the first air pipe through a first branch air pipe, and a quick adapter is arranged at the other end of the first air pipe.

[0018] The further improvement of the utility model is:

[0019] The first panel is provided with four first movable slide rod holes, the positions of the first movable slide rod holes correspond to the positions of the four movable slide rods, and the four movable slide rods pass through the corresponding first movable slide rod holes respectively;

[0020] The first panel is provided with a first threaded hole, the position of the first threaded hole corresponds to the position of the movable screw rod, and the movable screw rod passes through the first threaded hole.

[0021] The further improvement of the utility model is:

[0022] The copper brush cleaning device comprises a second panel, an annular air chamber is arranged on the second panel, a plurality of cylinders facing the axis direction are evenly arranged on the annular air chamber along the circumference, a piston rod is arranged in the cylinder, a copper brush is fixed to one end of the piston rod facing the central axis of the annular air chamber, and the plurality of copper brushes form a circumference for the screw to pass through;

[0023] A spring is sleeved on the piston rod, and the annular air chamber is connected to the second air pipe.

[0024] The further improvement of the utility model is:

[0025] The second panel is provided with four second movable slide rod holes, the positions of the second movable slide rod holes correspond to the positions of the four movable slide rods, and the four movable slide rods respectively pass through the corresponding second movable slide rod holes;

[0026] The second panel is provided with a second threaded hole, the position of the second threaded hole corresponds to the position of the movable screw rod, and the movable screw rod passes through the second threaded hole.

[0027] The further improvement of the utility model is:

[0028] A motor is fixed on one side of one of the fixing plates away from the other fixing plate, the motor output shaft passes through the corresponding fixing plate and is connected to a first screw sleeve, and a second screw sleeve is connected to a corresponding position on the other fixing plate through a rotating shaft.

[0029] The further improvement of the utility model is:

[0030] A support platform is also provided on the side of the two fixing plates away from each other. The two support platforms are respectively arranged below the first screw sleeve and the second screw sleeve, and the motor is placed on the corresponding support platforms.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] The utility model adopts a blowing and brushing integrated structure. After the copper brush is cleaned, the debris brushed off is blown away by air pressure jet. Brushing and blowing can be achieved at the same time, or brushing first and then blowing, or blowing first and then brushing can be performed for cleaning. The appropriate cleaning method can be selected according to the screw attachment situation.

[0033] The utility model adopts a moving screw rod to provide the copper brush cleaning device and the air pressure cleaning device with power to move between the screw rods. The operator operates the handle to control the movement of the copper brush cleaning device and the air pressure cleaning device. The cleaning position can be determined according to the cleaning situation to avoid repeated cleaning of the clean parts, making the cleaning more accurate and more controllable.

[0034] The copper brush cleaning device of the utility model adopts air pressure to provide thrust, so that the copper brush is attached to the surface of the screw for cleaning, and air pressure is injected through the air valve to make four copper brushes press the screw, and the screw is rotated for cleaning. After cleaning, the air valve is pressed to release the air pressure, the copper brush returns to its position, and the screw is taken out. This method is simple to operate, does not need to continuously provide thrust, and saves energy.

[0035] The utility model adopts a copper brush as a cleaning tool. The copper brush has low hardness and has a good protective effect on the screw. Four copper brushes are arranged in a fan shape around the screw for a week, so that the cleaning is more thorough and there is no dead angle or missed brushing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a screw cleaning device of the utility model;

[0037] Figure 2 It is a schematic diagram of the structure of the air pressure cleaning device;

[0038] Figure 3 It is a structural schematic diagram of a copper brush cleaning device.

[0039] In the figure, 1, fixed base, 2, fixed plate, 3, movable slide rod, 4, movable screw rod, 5, air pressure cleaning device, 501, first panel, 502, jet pipe, 503, branch nozzle, 504, jet nozzle, 505, air pipe connecting valve, 506, first branch air pipe, 507, first air pipe, 508, quick adapter, 509, arc connector, 510, first movable slide rod hole, 511, first threaded hole, 6, copper brush cleaning Management device, 601, second panel, 602, annular air chamber, 603, cylinder, 604, piston rod, 605, copper brush, 606, spring, 607, second air pipe, 608, second branch air pipe, 609, air valve, 610, second movable slide rod hole, 611, second threaded hole, 7, screw, 8, handle, 9, motor, 10, first screw sleeve, 11, second screw sleeve, 12, support platform, 13, protective cover. DETAILED DESCRIPTION

[0040] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0041] The utility model provides a screw cleaning device, the structure of which is as follows Figure 1 As shown, including:

[0042] A fixed base 1, on which two fixed plates 2 are arranged opposite to each other, and a movable slide rod 3 and a movable screw rod 4 are arranged between the two fixed plates 2;

[0043] The pneumatic cleaning device 5 is movably arranged on the movable slide rod 3 and the movable screw rod 4, so that the pneumatic cleaning device 5 can be moved between the two fixed plates 2;

[0044] The copper brush cleaning device 6 is movably arranged on the movable slide rod 3 and the movable lead screw 4 , so that the copper brush cleaning device 6 can be moved between the two fixed plates 2 .

[0045] When cleaning the screw, the screw 7 is passed through the copper brush cleaning device 6 and the air pressure cleaning device 5 in turn, and the two ends of the screw 7 are rotatably connected to the two fixed plates 2, the screw 7 is rotated, and the copper brush cleaning device 6 and the air pressure cleaning device 5 are used to clean the screw 7. The movable screw 4 is used to provide the copper brush cleaning device 6 and the air pressure cleaning device 5 with power to move between the two fixed plates 2. The cleaning position of the screw 7 can be determined according to the cleaning situation to avoid repeated cleaning of the clean parts, making the cleaning more accurate and more controllable.

[0046] As a preferred embodiment of the utility model, two movable slide bars 3 are arranged in parallel between the upper parts of the two fixed plates 2, and two movable slide bars 3 are arranged in parallel between the lower parts of the two fixed plates 2, and the two movable slide bars 3 at the lower parts are respectively located directly below the two movable slide bars 3 at the upper parts. When the copper brush cleaning device 6 and the air pressure cleaning device 5 pass through the four movable slide bars 3, it can be ensured that the copper brush cleaning device 6 and the air pressure cleaning device 5 remain perpendicular to the horizontal plane, so that when the copper brush cleaning device 6 and the air pressure cleaning device 5 are driven to move between the two fixed plates 2 by rotating the movable screw rod 4, they will not be immobile, thereby improving the cleaning efficiency and effect.

[0047] The two ends of the movable slide rod 3 are respectively fixed on the two fixed plates 2, which play a role of fixed support and limiting for the copper brush cleaning device 6 and the air pressure cleaning device 5, and can ensure that the copper brush cleaning device 6 and the air pressure cleaning device 5 only move horizontally between the two fixed plates 2 during the movement process.

[0048] As a preferred embodiment of the utility model, the two ends of the movable screw rod 4 are respectively threadedly connected to the two fixed plates 2, and one end of the movable screw rod 4 extends out of the fixed plate 2 on the corresponding side and is connected to a handle 8. By rotating the handle 8, the movable screw rod 4 is driven to rotate, and then the air pressure cleaning device 6 and the copper brush cleaning device 5 are driven to move between the two fixed brackets 2, so that different positions of the screw rod 7 can be cleaned.

[0049] Preferably, the movable screw rod 4 is arranged close to the upper two movable slide rods 3 and is located in the middle of the upper two movable slide rods 3 .

[0050] As a preferred embodiment of the present invention, Figure 2As shown, the air pressure cleaning device 5 includes a first panel 501, on which a large circular through hole is provided, and a circle of air jets 502 are fixed on the circumference of the large circular through hole, and the air jets 502 are evenly provided with a plurality of branch nozzles 503 facing the central axis along the circumference, and each branch nozzle 503 is provided with an air jet nozzle 504, and the plurality of air jet nozzles 504 form a circumference for the screw 7 to pass through, and the screw 7 is cleaned by jetting air through the air jet nozzles 504. Preferably, four branch nozzles are provided.

[0051] Preferably, the central axis of the large circular through hole coincides with the central axis of the circle formed by the plurality of air nozzles 504 .

[0052] The jet pipe 502 is connected to two air pipe connecting valves 505, which are arranged opposite to each other. The two air pipe connecting valves 505 are connected to one end of the first air pipe 507 through the first branch air pipe 506. Specifically, the two air pipe connecting valves 505 are connected to the first branch air pipe 506, and the two first branch air pipes 506 are connected to one end of the first air pipe 507. The other end of the first air pipe 507 is provided with a quick adapter 508 for connecting to an air pump. The air pump is used for inflation, and the gas enters the jet pipe 502 through the first air pipe 507 and the first branch air pipe 506 in turn, and then enters each branch nozzle 503 and is sprayed out through the nozzle 504 to achieve cleaning of the screw 7.

[0053] Preferably, two adjacent branch nozzles 503 are connected by an arc connector 509 to improve the stability of the entire structure and prevent the branch nozzles 503 from shaking or shifting as the pressure increases during inflation through the air pump, thereby affecting the cleaning effect of the screw 7.

[0054] Preferably, four first movable slide rod holes 510 are provided on the first panel 501, and the positions of the first movable slide rod holes 510 correspond to the positions of the four movable slide rods 3. The four movable slide rods 3 respectively pass through the corresponding first movable slide rod holes 510, thereby providing fixed support and limiting functions for the first panel 502, thereby ensuring that the pneumatic cleaning device 5 only moves horizontally between the two fixed plates 2 during the movement process.

[0055] Preferably, a first threaded hole 511 is provided on the first panel 501, and the position of the first threaded hole 511 corresponds to the position of the movable screw rod 4. The movable screw rod 4 passes through the first threaded hole 511, and the movable screw rod 4 is rotated by rotating the handle 8, thereby driving the first panel 501 to move on the movable screw rod 4, so as to realize the horizontal movement of the pneumatic cleaning device 5 between the two fixed plates 2.

[0056] As a preferred embodiment of the present invention, Figure 3 As shown, the copper brush cleaning device 6 includes a second panel 601, on which an annular air chamber 602 is arranged, and on the annular air chamber 602, a plurality of cylinders 603 are evenly arranged along the circumference and facing the axial direction, a piston rod 604 is arranged in the cylinder 603, and a copper brush 605 is fixed at one end of the piston rod 604 facing the central axis of the annular air chamber 602, and a plurality of the copper brushes 605 form a circumference for the screw 7 to pass through, and a spring 606 is sleeved on the piston rod 604, and the annular air chamber 602 is connected to the second air pipe 607, and the second air pipe 607 is connected to the air pump, and the air pump is used to introduce gas into the annular air chamber 602 and into the cylinder 603, and due to the pressure, the piston rod 604 extends and presses the screw 7 to clean the screw 7, and when the cleaning is completed, the air pump stops supplying air, and the piston rod 604 returns to its original position under the action of the spring 606.

[0057] Preferably, the central axis of the annular air chamber 602 coincides with the central axis of the circle formed by the plurality of copper brushes 605 .

[0058] Preferably, the annular air chamber 602 is connected to two second branch air pipes 608, and the two second branch air pipes 608 are arranged opposite to each other. The two second branch air pipes 608 are respectively connected to one end of the second air pipe 607, and the other end of the second air pipe 607 is connected to the air pump through the air valve 609. The air pump inflates to provide pressure, and the gas is pumped into the cylinder 603 through the air valve 609, so that the piston rod 604 extends and the copper brush 605 is pressed against the surface of the screw 7. Since the screw 7 is always in a rotating state, the copper brush 605 can be used to clean the surface of the screw 7. After cleaning, press the air valve 609 to release the gas, and the piston rod 604 retracts under the action of the spring 606 to return to its original position.

[0059] Preferably, four second movable slide rod holes 610 are provided on the second panel 601, and the positions of the second movable slide rod holes 620 correspond to the positions of the four movable slide rods 3. The four movable slide rods 3 respectively pass through the corresponding second movable slide rod holes 610, thereby providing fixed support and limiting functions for the second panel 601, and ensuring that the copper brush cleaning device 6 only moves horizontally between the two fixed plates 2 during the movement process.

[0060] Preferably, a second threaded hole 611 is provided on the second panel 601, and the position of the second threaded hole 611 corresponds to the position of the movable screw rod 4. The movable screw rod 4 passes through the second threaded hole 611, and the movable screw rod 4 is rotated by rotating the handle 8, thereby driving the second panel 601 to move on the movable screw rod 4, so as to realize the horizontal movement of the copper brush cleaning device 6 between the two fixed plates 2.

[0061] Preferably, the position between two adjacent cylinders 603 in the annular air chamber 602 is a hollow structure, and the remaining position can be a solid structure. The hollow structure is connected to the second air pipe 607 through a second branch air pipe 608, respectively. On the one hand, the pressure provided by the air pump can be used more efficiently and reasonably, so that the range of air pressure can be smaller. On the other hand, half of the annular air chamber is solid, which can make the structure stronger and play a certain reinforcement role.

[0062] As a preferred embodiment of the utility model, screw sleeves are respectively provided on the two fixing plates 2, and the positions of the two screw sleeves correspond to each other, and are used to fix the screw 7 and drive the screw to rotate. Specifically, a motor 9 is fixed on the side of one of the fixing plates 2 away from the other fixing plate 2, and the output shaft of the motor 9 passes through the corresponding fixing plate 2 and is connected to the first screw sleeve 10. The second screw sleeve 11 is connected to the corresponding position on the other fixing plate 2 through a rotating shaft. The first screw sleeve 10 and the second screw sleeve 11 are respectively threadedly connected to the two ends of the screw 7, and are used to fix the screw 7 and drive the screw 7 to rotate.

[0063] Preferably, the central axes of the circle formed by the first screw sleeve 10 , the second screw sleeve 11 , the plurality of air nozzles 504 , and the circle formed by the plurality of copper brushes 605 coincide with each other.

[0064] Preferably, a support platform 12 is also provided on the side of the two fixed plates 2 away from each other, and the two support platforms 12 are respectively arranged below the first screw sleeve 10 and the second screw sleeve 11, and the motor 9 is placed on the corresponding support platform 12. The support platform 12 can also be used to form the screw when loading and unloading the screw, thereby facilitating the loading and unloading of the screw.

[0065] As a preferred embodiment of the utility model, a transparent protective cover 13 is provided outside the screw cleaning device to prevent splashing. One side of the transparent protective cover 13 is open, and the open side can be fixed on the fixed base 1 to cover the two fixed plates 2, the movable screw 4, the movable slide rod 3, the air pressure cleaning device 5, the copper brush cleaning device 6, the screw 7, etc., to prevent contaminants from splashing out during the screw cleaning process.

[0066] When the screw cleaning device of the utility model is used to clean the screw, the screw 7 is sequentially passed through the circumference formed by the multiple copper brushes 605 and the circumference formed by the multiple air nozzles 504, and then the two ends of the screw 7 are respectively fixed on the first screw sleeve 10 and the second bolt sleeve 11, and the first air pipe 507 and the second air pipe 607 are respectively connected to the air pump, and the motor 9 is turned on. The screw 7 rotates under the drive of the motor 9, and the first air pipe 507 and the second air pipe 607 are inflated by the air pump. In the air pressure cleaning device 5, the gas sequentially enters the air pipe 507 and the first branch air pipe 506 into the air pipe 502 and then enters each branch nozzle 503 and is sprayed out through the nozzle 504, so as to achieve the cleaning of the screw. Pneumatic cleaning of the rod 7. In the copper brush cleaning device 6, gas is pumped into the cylinder 603 through the air valve 609, so that the piston rod 604 extends and the copper brush 605 is close to the surface of the screw 7. Since the screw 7 is always in a rotating state, the copper brush 605 can be used to clean the surface of the screw 7. During the cleaning process, the operator can move the position of the pneumatic cleaning device 5 and the copper brush cleaning device 6 by turning the handle 8, and clean the position that needs to be cleaned at will to avoid repeated cleaning of the clean parts. After the cleaning is completed, turn off the motor 9 and the air pump, press the air valve 609 to release the gas, and the piston rod 604 retracts under the action of the spring 606 and returns to its original position, and the screw 7 can be removed from the screw sleeve.

[0067] The utility model adopts a blowing and brushing integrated structure. After the copper brush is cleaned, the debris brushed off is blown away by air pressure jet. Brushing and blowing can be achieved at the same time, or brushing first and then blowing, or blowing first and then brushing can be performed for cleaning. The appropriate cleaning method can be selected according to the screw attachment situation.

[0068] The utility model adopts a moving screw rod to provide the copper brush cleaning device and the air pressure cleaning device with power to move between the screw rods. The operator operates the handle to control the movement of the copper brush cleaning device and the air pressure cleaning device. The cleaning position can be determined according to the cleaning situation to avoid repeated cleaning of the clean parts, making the cleaning more accurate and more controllable.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0071] The above technical solution is only one implementation method of the utility model. For those skilled in the art, it is easy to make various types of improvements or modifications based on the principles disclosed in the utility model, and it is not limited to the technical solution described in the above specific embodiments of the utility model. Therefore, the above description is only preferred and does not have a restrictive meaning.

Claims

1. A screw cleaning device, characterized in that: include: A fixed base, wherein two fixed plates are arranged opposite to each other on the fixed base, and a movable slide rod and a movable screw rod are arranged between the two fixed plates; A copper brush cleaning device, movably arranged on the movable slide rod and the movable lead screw; The pneumatic cleaning device is movably arranged on the movable slide rod and the movable lead screw.

2. The screw cleaning device according to claim 1, characterized in that: Two movable slide bars are arranged in parallel between the upper parts of the two fixed plates, and two movable slide bars are arranged in parallel between the lower parts of the two fixed plates, and the two movable slide bars at the lower parts are respectively located directly below the two movable slide bars at the upper parts.

3. The screw cleaning device according to claim 1 or 2, characterized in that: The two ends of the movable screw rod are respectively threadedly connected to the two fixed plates, and one end of the movable screw rod extends out of the fixed plate on the corresponding side and is connected to a handle.

4. The screw cleaning device according to claim 3, characterized in that: The air pressure cleaning device includes a first panel, on which a large circular through hole is arranged, a circle of air jet pipes is fixed on the circumference of the large circular through hole, a plurality of branch nozzles facing the central axis are evenly arranged on the air jet pipe along the circumference, each branch nozzle is provided with an air jet nozzle, and the plurality of air jet nozzles form a circumference for the screw to pass through.

5. The screw cleaning device according to claim 4, characterized in that: The jet pipe is connected to two air pipe connecting valves, which are arranged opposite to each other. The two air pipe connecting valves are connected to one end of the first air pipe through a first branch air pipe, and a quick adapter is arranged at the other end of the first air pipe.

6. The screw cleaning device according to claim 5, characterized in that: The first panel is provided with four first movable slide rod holes, the positions of the first movable slide rod holes correspond to the positions of the four movable slide rods, and the four movable slide rods pass through the corresponding first movable slide rod holes respectively; The first panel is provided with a first threaded hole, the position of the first threaded hole corresponds to the position of the movable screw rod, and the movable screw rod passes through the first threaded hole.

7. The screw cleaning device according to claim 6, characterized in that: The copper brush cleaning device comprises a second panel, an annular air chamber is arranged on the second panel, a plurality of cylinders facing the axis direction are evenly arranged on the annular air chamber along the circumference, a piston rod is arranged in the cylinder, a copper brush is fixed to one end of the piston rod facing the central axis of the annular air chamber, and the plurality of copper brushes form a circumference for the screw to pass through; A spring is sleeved on the piston rod, and the annular air chamber is connected to the second air pipe.

8. The screw cleaning device according to claim 7, characterized in that: The second panel is provided with four second movable slide rod holes, the positions of the second movable slide rod holes correspond to the positions of the four movable slide rods, and the four movable slide rods respectively pass through the corresponding second movable slide rod holes; The second panel is provided with a second threaded hole, the position of the second threaded hole corresponds to the position of the movable screw rod, and the movable screw rod passes through the second threaded hole.

9. The screw cleaning device according to claim 8, characterized in that: A motor is fixed on one side of one of the fixing plates away from the other fixing plate, the motor output shaft passes through the corresponding fixing plate and is connected to a first screw sleeve, and a second screw sleeve is connected to a corresponding position on the other fixing plate through a rotating shaft.

10. The screw cleaning device according to claim 9, characterized in that: A support platform is also provided on the side of the two fixing plates away from each other. The two support platforms are respectively arranged below the first screw sleeve and the second screw sleeve, and the motor is placed on the corresponding support platforms.

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