Full-automatic box pasting machine with cleaning function

Abstract

The utility model discloses a full-automatic box pasting machine with a cleaning function, and relates to the field of box pasting machines, the full-automatic box pasting machine comprises a cleaning bin and a conveying belt, the conveying belt penetrates through the bottom end of the cleaning bin, the inner side of the cleaning bin is fixedly connected with a group of symmetrical supporting plates, the supporting plates are in a broken line shape, the opposite sides of the supporting plates are provided with supporting rods, and the supporting rods are fixedly connected with the conveying belt. And the bottom end of the supporting rod is fixedly connected with a mounting plate. By means of the reciprocating mechanism, when the protruding block is far away from the idler wheel, the connecting block resets under the action of the reset spring, the supporting rod is driven to reset, reciprocating motion of the supporting rod is achieved, and therefore the installation plate at the bottom end of the supporting rod and the cleaning brush conduct reciprocating motion. The bottom end of the cleaning brush cleans the surface of the paper box raw material back and forth, impurities tightly attached to the surface of the paper box raw material can be cleaned away, and the impurity cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of box gluing machines, in particular to a full-automatic box gluing machine with a cleaning function. Background Technique

[0002] A box gluing machine is an automated mechanical device used to make paper boxes from raw materials such as cardboard and is widely used in the packaging industry. The working principle of the box gluing machine mainly includes steps such as cardboard feeding, folding, gluing, compressing, and stacking. During the box gluing process of traditional box gluing machines, since there may be impurities such as dust and debris on the surface of the cardboard raw materials, these impurities will affect the quality and appearance of the glued boxes and may even cause malfunctions of the box gluing machine. Therefore, the cleaning treatment of the paper box raw materials before box gluing is very important.

[0003] Generally, only light impurities on the surface of the paper box can be blown away by blowing, and the cleaning effect is poor. It is difficult to effectively remove impurities that adhere tightly. For this reason, a full-automatic box gluing machine with a cleaning function is needed to solve the existing deficiencies. Content of the Utility Model

[0004] The purpose of the utility model is to provide a full-automatic box gluing machine with a cleaning function. Through the arranged reciprocating mechanism, the bottom end of the cleaning brush sweeps back and forth on the surface of the paper box raw materials, which is beneficial to sweeping away the impurities that adhere tightly to the surface of the paper box raw materials and improves the effect of impurity sweeping; through the arranged air jet mechanism, the distance between the air jet head and the paper box raw materials is adjusted to avoid deformation of the paper box raw materials caused by the air jet head being too close to the paper box raw materials. A suitable height facilitates the effective blowing of impurities.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a full-automatic box gluing machine with a cleaning function, including a cleaning bin and a conveyor belt. The conveyor belt penetrates through the bottom end of the cleaning bin. A group of symmetric support plates are fixedly connected to the inner side of the cleaning bin. The support plates are in a broken line shape. A support rod is arranged on the opposite side of the support plates. The bottom end of the support rod is fixedly connected with a mounting plate. The top end of the mounting plate is fixedly connected with a cleaning brush through bolts. A reciprocating mechanism is fixedly connected to the inner top end of the cleaning bin, and the reciprocating mechanism is movably connected to the top end of the support rod. Air jet mechanisms are arranged on the front side and the rear side of the cleaning bin.

[0007] The present utility model is further configured such that the reciprocating mechanism includes a connecting block, a roller, a toothed ring, a gear, and a servo motor I. One end of the connecting block is fixedly connected to one side of the top end of the support rod. The roller is movably connected to the other end of the connecting block through a rotating shaft. The gear is movably connected to the inner top end of the cleaning bin through a rotating shaft. The servo motor I is fixedly connected to the top end of the cleaning bin, and the output end of the servo motor I is fixedly connected to the rotating shaft of the gear. The toothed ring meshes with the gear.

[0008] The present utility model is further configured such that a support ring is fixedly connected to the top end of the toothed ring. The top end of the support ring is movably connected to the inner top end of the cleaning bin. The connecting block and the roller are both located inside the toothed ring. Several convex blocks are fixedly connected to the inside of the toothed ring, and the convex blocks are distributed in a circular array. The surface of the roller is in contact with the surface of the convex blocks.

[0009] The present utility model is further configured such that the reciprocating mechanism further includes a guide rod and a return spring. A chute is formed through the top end of the cleaning bin. The return springs are symmetrically arranged and are sleeved on the outside of the guide rod. The guide rod is fixedly connected to the inside of the chute. The top end of the support rod is movably connected to the inside of the chute. One ends of the return springs are respectively fixedly connected to both sides of the top end of the support rod, and the other ends of the return springs are respectively fixedly connected to both sides of the inside of the chute.

[0010] The present utility model is further configured such that the guide rod penetrates through the top end of the support rod, and the guide rod is movably connected to the support rod. An auxiliary plate is fixedly connected to the middle position of the support rod. Both ends of the auxiliary plate penetrate through the support plate, and the auxiliary plate is movably connected to the support plate.

[0011] The present utility model is further configured such that the air jetting mechanism includes a screw rod, a moving block, a rotating rod, a lifting plate, and an air jet head. The air jet head is located directly above the conveyor belt. The air jet heads are distributed in a linear array and are fixedly connected to the bottom end of the lifting plate. The rotating rods and the moving blocks are both symmetrically arranged. The top ends of the rotating rods are respectively movably connected to the bottom ends of the moving blocks through rotating shafts, and the bottom ends of the rotating rods are respectively movably connected to the top ends of the lifting plate through rotating shafts. A set of symmetric threads is provided on the outside of the screw rod. The screw rod penetrates through the moving block, and the screw rod is threadedly connected to the moving block.

[0012] The present utility model is further configured such that a set of symmetric baffles are fixedly connected to the inside of the cleaning bin. The top end of the moving block is slidably connected to the bottom end of the baffle. The lifting plate is movably connected to the inside of the cleaning bin. The screw rod is movably connected to the inside of the cleaning bin through a bearing. A set of symmetric servo motors II are fixedly connected to the outside of the cleaning bin, and the output end of the servo motor II is fixedly connected to one end of the screw rod.

[0013] The present utility model has the following beneficial effects:

[0014] 1. By means of the reciprocating mechanism provided in the present utility model, when the convex block moves away from the roller, under the action of the return spring, the connecting block resets, driving the support rod to reset, and reciprocating in this way to achieve the reciprocating movement of the support rod. As a result, the mounting plate and the cleaning brush at the bottom end of the support rod perform reciprocating movements, and the bottom end of the cleaning brush sweeps back and forth on the surface of the carton raw material, which is beneficial to removing the impurities tightly adhered to the surface of the carton raw material and improving the effect of impurity cleaning.

[0015] 2. By means of the air jet mechanism provided in the present utility model, when the carton raw material moves out of the inner side of the cleaning bin, at the inlet end and the outlet end of the cleaning bin, the air jet generated by the air jet head blows off the fine impurities on the surface of the carton raw material. The height of the air jet head is adjusted according to the thickness of the carton raw material. By starting the second servo motor, the screw rod is driven to rotate inside the cleaning bin, so that the moving blocks approach each other along the bottom end of the baffle, causing the rotating rod to rotate, thereby pushing the lifting plate to move downward, and vice versa to move the lifting plate upward, so as to adjust the distance between the air jet head and the carton raw material, avoiding deformation of the carton raw material caused by the air jet head being too close to the carton raw material. A suitable height facilitates the effective blowing off of impurities.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the cleaning bin of the present utility model;

[0020] Figure 3 is the present utility model Figure 2 is a schematic diagram of the structure from another perspective;

[0021] Figure 4 is a schematic diagram of the structure of the reciprocating mechanism of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure of the air jet mechanism of the present utility model.

[0023] In the figure: 1. Cleaning bin; 2. Conveyor belt; 3. Support plate; 4. Support rod; 5. Mounting plate; 6. Cleaning brush; 7. Reciprocating mechanism; 701. Connecting block; 702. Roller; 703. Tooth ring; 704. Gear; 705. Servo motor 1; 706. Guide rod; 707. Return spring; 8. Jet mechanism; 801. Screw; 802. Moving block; 803. Rotary rod; 804. Lifting plate; 805. Jet head; 9. Support ring; 10. Convex block; 11. Chute; 12. Auxiliary plate; 13. Baffle; 14. Servo motor 2. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0025] As Figures 1-5 shown, the present invention provides a technical solution: a fully automatic box gluing machine with a cleaning function, including a cleaning bin 1 and a conveyor belt 2. The conveyor belt 2 penetrates the bottom end of the cleaning bin 1. A set of symmetric support plates 3 are fixedly connected to the inner side of the cleaning bin 1. The support plates 3 are in a zigzag shape. A support rod 4 is arranged on the opposite side of the support plates 3. The bottom end of the support rod 4 is fixedly connected to a mounting plate 5. The top end of the mounting plate 5 is fixedly connected to a cleaning brush 6 by bolts. A reciprocating mechanism 7 is fixedly connected to the inner top end of the cleaning bin 1, and the reciprocating mechanism 7 is movably connected to the top end of the support rod 4. Jet mechanisms 8 are arranged on the front side and the rear side of the cleaning bin 1.

[0026] First, use the conveyor belt 2 to transport the carton raw materials. The bottom end of the support plate 3 is slightly higher than the conveyor belt 2, so that the carton raw materials can pass through between the conveyor belt 2 and the support plate 3, and prevent the carton raw materials from warping. When the carton raw materials enter the inside of the cleaning chamber 1, start the first servo motor 705 to drive the gear 704 to rotate, drive the toothed ring 703 to rotate around the axis of the support ring 9, so that the bumps 10 inside the toothed ring 703 rotate synchronously. The roller 702 abuts against the bump 10. When the bump 10 moves closer to the roller 702, it pushes the connecting block 701 away from the bump 10, drives the support rod 4 to move synchronously, so that the top end of the support rod 4 moves along the chute 11, and two return springs 707 are deformed. When the bump 10 moves away from the roller 702, under the action of the return spring 707, the connecting block 701 returns to its original position, driving the support rod 4 to return to its original position. This reciprocates to achieve the reciprocating movement of the support rod 4, so that the mounting plate 5 and the cleaning brush 6 at the bottom end of the support rod 4 perform reciprocating movements. In this way, the bottom end of the cleaning brush 6 sweeps back and forth on the surface of the carton raw materials to remove the impurities on its surface. In addition, the cleaning brush 6 can be replaced by bolts; then, the carton raw materials are moved out of the inside of the cleaning chamber 1. At the inlet and outlet ends of the cleaning chamber 1, the jet generated by the jet head 805 blows off the fine impurities on the surface of the carton raw materials. Adjust the height of the jet head 805 according to the thickness of the carton raw materials. By starting the second servo motor 14, drive the screw rod 801 to rotate inside the cleaning chamber 1, so that the moving blocks 802 move closer to each other along the bottom end of the baffle 13, so that the rotating rod 803 rotates to push the lifting plate 804 to move downward, and vice versa to make the lifting plate 804 move upward, so as to adjust the distance between the jet head 805 and the carton raw materials. The jet head 805 at the inlet end of the cleaning chamber 1 first blows off the light impurities on the surface of the carton raw materials, then uses the cleaning brush 6 to remove the impurities adhering deeply to the carton surface, and finally uses the jet head 805 at the outlet end of the cleaning chamber 1 to blow off the remaining impurities on the carton surface.

[0027] Such as Figures 1-4As shown in the figure, the reciprocating mechanism 7 includes a connecting block 701, a roller 702, a toothed ring 703, a gear 704, and a first servo motor 705. One end of the connecting block 701 is fixedly connected to one side of the top end of the support rod 4. The roller 702 is movably connected to the other end of the connecting block 701 through a rotating shaft. The gear 704 is movably connected to the inner top end of the cleaning bin 1 through a rotating shaft. The first servo motor 705 is fixedly connected to the top end of the cleaning bin 1, and the output end of the first servo motor 705 is fixedly connected to the rotating shaft of the gear 704. The toothed ring 703 meshes with the gear 704. A support ring 9 is fixedly connected to the top end of the toothed ring 703. The top end of the support ring 9 is movably connected to the inner top end of the cleaning bin 1. Both the connecting block 701 and the roller 702 are located inside the toothed ring 703. Several convex blocks 10 are fixedly connected to the inside of the toothed ring 703, and the convex blocks 10 are distributed in a circular array. The surface of the roller 702 is in contact with the surface of the convex blocks 10. The reciprocating mechanism 7 further includes a guide rod 706 and a return spring 707. A chute 11 is formed through the top end of the cleaning bin 1. The return springs 707 are arranged symmetrically. The return springs 707 are sleeved on the outside of the guide rod 706. The guide rod 706 is fixedly connected to the inside of the chute 11. The top end of the support rod 4 is movably connected to the inside of the chute 11. One ends of the return springs 707 are respectively fixedly connected to both sides of the top end of the support rod 4, and the other ends of the return springs 707 are respectively fixedly connected to both sides of the inside of the chute 11. The guide rod 706 passes through the top end of the support rod 4, and the guide rod 706 is movably connected to the support rod 4. An auxiliary plate 12 is fixedly connected to the middle position of the support rod 4. Both ends of the auxiliary plate 12 respectively pass through the support plate 3, and the auxiliary plate 12 is movably connected to the support plate 3.

[0028] Start the first servo motor 705 to drive the gear 704 to rotate, drive the toothed ring 703 to rotate around the axis of the support ring 9, so that the convex blocks 10 inside the toothed ring 703 rotate synchronously. The roller 702 abuts against the convex blocks 10. When the convex blocks 10 move closer to the roller 702, they push the connecting block 701 away from the convex blocks 10, drive the support rod 4 to move synchronously, so that the top end of the support rod 4 moves along the chute 11, and the two return springs 707 are deformed. When the convex blocks 10 move away from the roller 702, under the action of the return springs 707, the connecting block 701 resets, drives the support rod 4 to reset, and reciprocates in this way to realize the reciprocating movement of the support rod 4. Thus, the mounting plate 5 and the cleaning brush 6 at the bottom end of the support rod 4 perform reciprocating movements, and the bottom end of the cleaning brush 6 sweeps back and forth on the surface of the carton raw material, which is beneficial to removing the impurities tightly adhered to the surface of the carton raw material and improves the effect of impurity cleaning. In addition, the cleaning brush 6 can be replaced by bolts.

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 5As shown in the figure, the air jet mechanism 8 includes a screw rod 801, a moving block 802, a rotating rod 803, a lifting plate 804 and an air jet head 805. The air jet head 805 is located directly above the conveyor belt 2. The air jet heads 805 are distributed in a linear array, and the air jet head 805 is fixedly connected to the bottom end of the lifting plate 804. Both the rotating rod 803 and the moving block 802 are symmetrically arranged. The top ends of the rotating rods 803 are respectively movably connected to the bottom ends of the moving blocks 802 through rotating shafts, and the bottom ends of the rotating rods 803 are respectively movably connected to the top ends of the lifting plate 804 through rotating shafts. A set of symmetric threads is provided on the outer side of the screw rod 801. The screw rod 801 penetrates through the moving block 802, and the screw rod 801 is threadedly connected to the moving block 802. A set of symmetric baffles 13 are fixedly connected to the inner side of the cleaning bin 1. The top end of the moving block 802 is slidably connected to the bottom end of the baffle 13. The lifting plate 804 is movably connected to the inner side of the cleaning bin 1. The screw rod 801 is movably connected to the inner side of the cleaning bin 1 through a bearing. A set of symmetric servo motors two 14 are fixedly connected to the outer side of the cleaning bin 1. The output end of the servo motor two 14 is fixedly connected to one end of the screw rod 801.

[0030] The paper box raw materials are moved out of the inner side of the cleaning bin 1. At the inlet end and the outlet end of the cleaning bin 1, the air jets generated by the air jet heads 805 blow off the fine impurities on the surface of the paper box raw materials. The height of the air jet heads 805 is adjusted according to the thickness of the paper box raw materials. By starting the servo motor two 14, the screw rod 801 is driven to rotate inside the cleaning bin 1, so that the moving blocks 802 approach each other along the bottom ends of the baffles 13, causing the rotating rods 803 to rotate, so as to push the lifting plate 804 to move downward. On the contrary, the lifting plate 804 moves upward, thereby adjusting the distance between the air jet heads 805 and the paper box raw materials, preventing the paper box raw materials from deforming due to the air jet heads 805 being too close to the paper box raw materials. The appropriate height facilitates the effective blowing off of impurities.

[0031] Working principle: When in use, first of all, the cleaning bin 1 is a part of the box gluing machine, mainly used for cleaning the impurities on the surface of the paper box raw materials, so that the paper box raw materials can be free of debris after folding. The conveyor belt 2 is used to transport the paper box raw materials. The bottom end of the support plate 3 is slightly higher than the conveyor belt 2, so that the paper box raw materials can pass through between the conveyor belt 2 and the support plate 3, and the paper box raw materials are prevented from warping. When the paper box raw materials enter the inner side of the cleaning bin 1, the servo motor 705 is started to drive the gear 704 to rotate, driving the toothed ring 703 to rotate around the axis of the support ring 9, so that the bumps 10 on the inner side of the toothed ring 703 rotate synchronously. The roller 702 abuts against the bump 10. When the bump 10 moves close to the roller 702, it pushes the connecting block 701 away from the bump 10, driving the support rod 4 to move synchronously, so that the top end of the support rod 4 moves along the chute 11, and the two return springs 707 are deformed. When the bump 10 moves away from the roller 702, under the action of the return spring 707, the connecting block 701 resets, driving the support rod 4 to reset, and so on, to realize the reciprocating movement of the support rod 4, so that the mounting plate 5 and the cleaning brush 6 at the bottom end of the support rod 4 perform reciprocating movements, and the bottom end of the cleaning brush 6 sweeps back and forth on the surface of the paper box raw materials to remove the impurities on its surface. In addition, the cleaning brush 6 can be replaced by bolts; then, the paper box raw materials are moved out of the inner side of the cleaning bin 1. At the inlet end and the outlet end of the cleaning bin 1, the jet generated by the jet head 805 blows off the fine impurities on the surface of the paper box raw materials. The height of the jet head 805 is adjusted according to the thickness of the paper box raw materials. By starting the servo motor 14, the screw rod 801 is driven to rotate inside the cleaning bin 1, so that the moving blocks 802 move closer to each other along the bottom end of the baffle 13, causing the rotating rod 803 to rotate, so as to push the lifting plate 804 to move downward, and vice versa to make the lifting plate 804 move upward, so as to adjust the distance between the jet head 805 and the paper box raw materials.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A fully automatic folder-gluing machine with a cleaning function, comprising a cleaning chamber (1) and a conveyor belt (2), characterized in that: The conveyor belt (2) passes through the bottom end of the cleaning chamber (1); a group of symmetrical support plates (3) are fixedly connected to the inner side of the cleaning chamber (1); the support plates (3) are in a broken line shape; support rods (4) are arranged on the opposite sides of the support plates (3); a mounting plate (5) is fixedly connected to the bottom end of the support rod (4); a cleaning brush (6) is fixedly connected to the top end of the mounting plate (5) by bolts; a reciprocating mechanism (7) is fixedly connected to the top end of the inner side of the cleaning chamber (1); the reciprocating mechanism (7) is movably connected to the top end of the support rod (4); and jet mechanisms (8) are arranged on the front and rear sides of the cleaning chamber (1).

2. The fully automatic folder-gluing machine with cleaning function according to claim 1, characterized in that: The reciprocating mechanism (7) comprises a connecting block (701), a roller (702), a gear ring (703), a gear (704) and a servo motor 1 (705); one end of the connecting block (701) is fixedly connected to one side of the top end of the support rod (4); the roller (702) is movably connected to the other end of the connecting block (701) via a rotating shaft; the gear (704) is movably connected to the inner top end of the cleaning chamber (1) via a rotating shaft; the servo motor 1 (705) is fixedly connected to the top end of the cleaning chamber (1); the output end of the servo motor 1 (705) is fixedly connected to the rotating shaft of the gear (704); and the gear ring (703) is meshed with the gear (704).

3. The fully automatic folder-gluing machine with cleaning function according to claim 2, characterized in that: The top end of the toothed ring (703) is fixedly connected to a support ring (9), and the top end of the support ring (9) is movably connected to the inner top end of the cleaning chamber (1). The connecting block (701) and the roller (702) are both located on the inner side of the toothed ring (703). The inner side of the toothed ring (703) is fixedly connected to a plurality of protrusions (10), and the protrusions (10) are distributed in a circular array. The roller (702) fits the surface of the protrusions (10).

4. The fully automatic folder-gluing machine with cleaning function according to claim 3, characterized in that: The reciprocating mechanism (7) also includes a guide rod (706) and a return spring (707). A slide groove (11) is provided at the top end of the cleaning chamber (1). The return springs (707) are symmetrically arranged. The return springs (707) are all sleeved on the outside of the guide rod (706). The guide rod (706) is fixedly connected to the inside of the slide groove (11). The top end of the support rod (4) is movably connected to the inside of the slide groove (11). One end of the return spring (707) is respectively fixedly connected to the two sides of the top end of the support rod (4), and the other end of the return spring (707) is respectively fixedly connected to the two sides of the inside of the slide groove (11).

5. The fully automatic folder-gluing machine with cleaning function according to claim 4, characterized in that: The guide rod (706) passes through the top end of the support rod (4), and the guide rod (706) is movably connected to the support rod (4); an auxiliary plate (12) is fixedly connected to the middle position of the support rod (4); both ends of the auxiliary plate (12) respectively pass through the support plate (3), and the auxiliary plate (12) is movably connected to the support plate (3).

6. The fully automatic folder-gluer with cleaning function according to claim 1, characterized in that: The jet mechanism (8) comprises a screw (801), a moving block (802), a rotating rod (803), a lifting plate (804) and a jet head (805). The jet head (805) is located directly above the conveyor belt (2). The jet heads (805) are distributed in a linear array and are fixedly connected to the bottom end of the lifting plate (804). The rotating rod (803) and the moving block (802) are symmetrically arranged. The top end of the rotating rod (803) is movably connected to the bottom end of the moving block (802) through a rotating shaft, and the bottom end of the rotating rod (803) is movably connected to the top end of the lifting plate (804) through a rotating shaft. A group of symmetrical threads are opened on the outer side of the screw (801). The screw (801) passes through the moving block (802), and the screw (801) is threadedly connected to the moving block (802).

7. The fully automatic folder-gluer with cleaning function according to claim 6, characterized in that: A group of symmetrical baffles (13) are fixedly connected to the inner side of the cleaning chamber (1); the top end of the moving block (802) is slidably connected to the bottom end of the baffle (13); the lifting plate (804) is movably connected to the inner side of the cleaning chamber (1); the screw (801) is movably connected to the inner side of the cleaning chamber (1) via a bearing; a group of symmetrical servo motors (14) are fixedly connected to the outer side of the cleaning chamber (1); the output end of the servo motors (14) is fixedly connected to one end of the screw (801).

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