Label cleaning machine

Abstract

A label cleaning machine comprises a machine frame, a driving assembly, a conveying assembly and a cleaning assembly are arranged on the machine frame, the conveying assembly comprises a conveying frame arranged in an inclined mode, a conveying belt conveying from low to high is arranged on the conveying frame, a fixing block used for fixing a wire coil is arranged on the conveying belt, a fixing cover is arranged on the conveying frame, and the fixing cover is arranged on the conveying frame. The cleaning assembly comprises a brush arranged in the fixing cover. And the brush is arranged in the fixed cover, so that the labels can be effectively cleaned in the running process of the conveying belt. And meanwhile, rotation of the brush and movement of the conveying belt are combined, the cleaning efficiency and uniformity are improved, and it is ensured that dirt and adherends on the surfaces of the labels are thoroughly removed. Due to the design of the conveying assembly, automatic conveying of the labels is achieved, the cleaning process is full-automatic, the requirement for manual intervention is reduced, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to a label cleaning machine and belongs to the field of enameled wires. Background Art

[0002] Enameled wire is the main raw material for products such as motors, electrical appliances and household appliances. In particular, the electric power industry has achieved sustained and rapid growth in recent years. The rapid development of household appliances has brought a wider range of applications for enameled wires, and with it, higher requirements for enameled wires.

[0003] Most of the existing enameled wires are wound on reels. After the enameled wires are used up, the reels are recycled and the labels are removed. The existing method of removing labels is generally manual removal, which leads to slow cleaning efficiency, incomplete removal, and residue problems, which affects the labeling of the next batch. Summary of the invention

[0004] The purpose of the present invention is to provide a label cleaning machine in order to overcome the shortcomings and deficiencies of the prior art.

[0005] A label cleaning machine comprises a frame, on which a driving component, a transmission component and a cleaning component are arranged, the transmission component comprises a transmission frame arranged in an inclined manner, the transmission frame is provided with a conveyor belt for conveying from low to high, the conveyor belt is provided with a fixing block for fixing a wire drum, the transmission frame is provided with a fixing cover, and the cleaning component comprises a brush arranged in the fixing cover. The brush is arranged in the fixing cover, and can effectively clean the label during the operation of the conveyor belt. At the same time, the rotation of the brush and the movement of the conveyor belt are combined to improve the efficiency and uniformity of cleaning, and ensure that dirt and adhesion are completely removed from the surface of the label. The design of the transmission component realizes the automatic conveying of the label, makes the cleaning process fully automated, reduces the need for manual intervention, improves work efficiency, and reduces labor intensity. The inclined setting of the transmission frame enables the label to contact the brush at a suitable angle during cleaning, which is conducive to improving the cleaning effect, and at the same time effectively reduces the slipping or jamming of the label during the transmission process, and improves the stability of the transmission. The conveyor belt is equipped with a fixed block for fixing the wire reel, which can effectively fix the position of the label to avoid displacement during the conveying process, ensure the accuracy of the cleaning process, and facilitate the replacement and maintenance of the wire reel. The fixed cover can prevent water and cleaning agents from splashing during the cleaning process, protect the surrounding environment, reduce the waste of cleaning agents, and keep the working area clean.

[0006] Preferably, a shower head is provided behind the brush in the fixed cover, and a water storage tank for storing water is provided on the conveyor rack. The provision of the shower head can provide additional water flushing after the brush cleaning, effectively remove residual dirt and cleaning agent, and ensure that the label surface is clean and thorough. This secondary cleaning design can significantly improve the cleaning effect of the label. The water storage tank provided on the conveyor rack can timely collect and store water overflowing during the cleaning process, ensuring that water resources will not be wasted during the cleaning process. The presence of the water storage tank helps to keep the working area dry and avoid affecting the operation of the equipment and the surrounding environment due to water overflow. The water collected in the water storage tank can be reused to achieve water recycling, further improve the economy and environmental protection of the equipment, and adapt to more stringent environmental protection requirements. By combining the cleaning of the brush with the flushing of the shower head, it can ensure that the label is efficiently cleaned in the shortest time and adapt to the ever-increasing production rhythm.

[0007] Furthermore, the water storage tank is provided with a water outlet at the bottom of the higher end, and the water outlet is installed with a filter. The design of the water outlet allows the sewage in the water storage tank to be quickly discharged, maintaining the appropriate water level in the tank, and ensuring that the cleaning process is not hindered. This helps to maintain the normal operation of the equipment and avoids the dryness and tidiness of the working area affected by overflow. The filter installed at the water outlet can effectively filter out solid impurities and dirt in the water, ensuring that the discharged water flow is cleaner. This reduces the pollution of drainage to the environment and meets the environmental protection requirements of modern production processes.

[0008] Preferably, a limiting component is provided on the transmission belt, and the limiting component includes a connecting rod arranged on the inner side of the fixed cover, the connecting rod is connected to the limiting rod, and the limiting rod is located above one end of the wire drum to limit the movement of the wire drum. The limiting rod is located above the wire drum, which can effectively limit the movement of the wire drum, prevent the displacement or tilt of the wire drum due to vibration or other external forces during the transmission process, ensure the stability of the wire drum during the cleaning process, and improve the cleaning effect. By limiting the free movement of the wire drum, the limiting component can prevent the wire drum from being damaged by collision or friction with other components. By designing an adjustable limiting rod angle, wire drums of different sizes and specifications can be adapted, thereby improving the flexibility of the equipment and meeting diverse cleaning needs.

[0009] Preferably, the conveyor belt is composed of a plurality of conveyor cross plates, and a plurality of leakage holes are evenly distributed on the conveyor cross plates. The presence of the leakage holes can quickly discharge excess water and cleaning agents during the cleaning process, avoid water accumulation on the conveyor belt, keep the conveyor belt dry and clean, ensure that the labels will not slip or get stuck during transportation, and improve the stability of transportation. The conveyor cross plates with leakage hole design can reduce the overall weight of the conveyor belt and reduce the burden on the transmission system, thereby improving the energy efficiency and operating efficiency of the equipment and extending the service life of the equipment. Since the leakage holes allow water and cleaning agents to pass through, it is also easy to clean after cleaning. At the same time, if any dirt blockage occurs, it can be easily checked and cleaned through the leakage holes, simplifying daily maintenance work.

[0010] Preferably, the driving assembly includes a first driving component linked to the conveyor belt, a second driving component linked to the brush, and a third driving component for linking with the shower head. The three driving components are responsible for the movement of different components respectively. Through the linkage design, the conveyor belt, the brush and the shower head can achieve efficient synchronous operation. This coordination mechanism can ensure that all links in the cleaning process are effectively combined to avoid incomplete cleaning due to asynchrony.

[0011] Preferably, the first driving component comprises a rotating shaft, the rotating shaft is connected with an alarm component arranged on the frame, a first driving wheel is sleeved on the rotating shaft, a first driving tooth is arranged on the first driving wheel, the alarm component comprises a mounting cover and a driving shaft fixed on the mounting cover, a first rotating plate is rotatably arranged on the driving shaft, the first rotating plate is linked with a second rotating plate, the second rotating plate is linked with an alarm button arranged on the inner wall of the mounting cover and electrically connected to the outside, a second driving wheel is fixed on the first rotating plate, a second driving tooth linked with the first driving tooth is arranged on the second driving wheel, a telescopic groove is arranged on the second driving wheel, the second driving tooth is telescopically arranged in the telescopic groove by a spring, the first driving wheel drives the second driving tooth to be compressed into the telescopic groove by abutting with the inclined surface arranged on the second driving wheel, so that the second driving wheel does not rotate, the first driving wheel forms a one-way rotation connection by abutting with the straight surface arranged on the second driving wheel, so that the second driving wheel is driven by the first driving wheel, and then the first rotating plate drives the second rotating plate to rotate and trigger the alarm button. The design of the alarm component provides effective safety monitoring and can monitor the operation status of the equipment in real time. When the equipment fails or operates abnormally, the linkage between the drive shaft and the rotating plate triggers the alarm button, which issues an alarm in time to ensure the safety of the operator. The one-way rotation connection design between the first drive wheel and the second drive wheel ensures the stability of the drive, avoids unnecessary reverse movement, reduces the possibility of misoperation or wear of transmission components, and thus increases the life of the equipment. When the rotation of the first drive wheel causes the rotation of the second drive wheel, the triggering of the alarm button forms an efficient feedback mechanism, allowing the operator to understand the status of the equipment in a timely manner. This mechanism ensures that abnormal conditions in operation can be reported quickly, improving operational safety.

[0012] Furthermore, a groove is provided on the second rotating plate, and one end of the first rotating plate can selectively abut against the groove through a roller. A first limit pin is also provided on the first rotating plate, and the first limit pin can selectively be clamped with a third rotating plate rotatably mounted on the bottom plate. A torsion spring is provided on the third rotating plate, and a protruding toggle portion is also provided on the third rotating plate. A fourth rotating plate is also rotatably provided in the mounting cover, and a second limit pin is provided on the second rotating plate. One end of the fourth rotating plate is clamped with the second limit pin, and the other end is clamped with the toggle portion. The abutment position of the fourth rotating plate and the second limit pin is inclined. The design of the first limit pin allows it to be connected to the rotatable mounting of the third rotating plate, providing more precise limit control. This design ensures that the range of rotation can be effectively limited during the operation of the equipment to avoid misoperation caused by free rotation.

[0013] The beneficial effects of the present invention are as follows: the brush is arranged in the fixed cover, which can effectively clean the label during the operation of the conveyor belt. At the same time, the rotation of the brush and the movement of the conveyor belt are combined to improve the efficiency and uniformity of cleaning, ensuring that the dirt and adhesion on the label surface are completely removed. The design of the conveying component realizes the automatic conveying of the label, making the cleaning process fully automated, reducing the need for manual intervention, improving work efficiency, and reducing labor intensity. The inclined setting of the conveyor frame enables the label to contact the brush at a suitable angle during cleaning, which is conducive to improving the cleaning effect, and effectively reduces the slipping or jamming of the label during the conveying process, thereby improving the stability of the conveying. The conveyor belt is provided with a fixed block for fixing the wire drum, which can effectively fix the position of the label, avoid displacement during the conveying process, ensure the accuracy of the cleaning process, and facilitate the replacement and maintenance of the wire drum. The establishment of the fixed cover can prevent water and detergent from splashing during the cleaning process, protect the surrounding environment, reduce the waste of detergent, and keep the working area clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0015] Figure 1 It is the main structure diagram of the present invention;

[0016] Figure 2 A structural diagram of another perspective of the present invention;

[0017] Figure 3 Structural diagram for removing the mounting cover;

[0018] Figure 4 A structural diagram of another perspective of the present invention;

[0019] Figure 5 for Figure 3 A magnified detail of the center point A;

[0020] Figure 6 It is the structural diagram of the alarm component;

[0021] In the figure, 1, frame; 2, conveying frame; 21, conveyor belt; 22, fixed block; 23, conveying horizontal plate; 24, leakage hole; 3, fixed cover; 31, brush; 32, shower head; 33, water storage tank; 34, water outlet; 35, filter screen; 36, connecting rod; 37, limit rod; 4, first driving component; 41, rotating shaft; 42, first driving wheel; 43, first driving gear; 5, second driving component; 6, third driving component; 7, alarm component; 71. Mounting cover; 72. Drive shaft; 73. First rotating plate; 731. Second driving wheel; 732. Second driving tooth; 733. Telescopic slot; 734. Spring; 735. Inclined surface; 736. Straight surface; 737. Roller; 738. First limit pin; 74. Second rotating plate; 741. Groove; 742. Second limit pin; 75. Third rotating plate; 751. Torsion spring; 752. Toggle part; 76. Fourth rotating plate; 77. Alarm button. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0024] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are for explaining and understanding the present invention, but not for limiting the scope of protection of the present invention.

[0025] like Figure 1-6As shown, an embodiment of a label cleaning machine of the present invention comprises a frame 1, on which a driving assembly, a transmission assembly and a cleaning assembly are arranged, the transmission assembly comprises a transmission frame 2 arranged in an inclined manner, the transmission frame 2 is provided with a conveyor belt 21 for conveying from low to high, the conveyor belt 21 is provided with a fixing block 22 for fixing the wire drum, the transmission frame 2 is provided with a fixing cover 3, and the cleaning assembly comprises a brush 31 arranged in the fixing cover 3. The brush 31 is arranged in the fixing cover 3, and can effectively clean the label during the operation of the conveyor belt 21. At the same time, the rotation of the brush 31 and the movement of the conveyor belt 21 are combined to improve the efficiency and uniformity of cleaning, and ensure that the dirt and adhesion on the surface of the label are completely removed. The design of the transmission assembly realizes the automatic conveying of the label, makes the cleaning process fully automated, reduces the need for manual intervention, improves work efficiency, and reduces labor intensity. The inclined setting of the transmission frame 2 enables the label to contact the brush 31 at a suitable angle during cleaning, which is conducive to improving the cleaning effect, and at the same time effectively reduces the slipping or jamming of the label during the transmission process, and improves the stability of the transmission. The conveyor belt 21 is provided with a fixing block 22 for fixing the wire reel, which can effectively fix the position of the label, avoid displacement during the conveying process, ensure the accuracy of the cleaning process, and facilitate the replacement and maintenance of the wire reel. The establishment of the fixed cover 3 can prevent water and cleaning agent from splashing during the cleaning process, protect the surrounding environment, reduce the waste of cleaning agent, and keep the working area clean.

[0026] The fixed cover 3 is provided with a shower head 32 located behind the brush 31, and the conveyor frame 2 is provided with a water storage tank 33 for storing water. The shower head 32 can provide additional water flushing after the brush 31 is cleaned, effectively remove residual dirt and cleaning agents, and ensure that the label surface is clean and thorough. This secondary cleaning design can significantly improve the cleaning effect of the label. The water storage tank 33 provided on the conveyor frame 2 can timely collect and store the water overflowed during the cleaning process to ensure that the water resources in the cleaning process will not be wasted. The existence of the water storage tank 33 helps to keep the working area dry and avoid affecting the operation of the equipment and the surrounding environment due to water overflow. The water collected by the water storage tank 33 can be reused to achieve water recycling, further improve the economy and environmental protection of the equipment, and adapt to more stringent environmental protection requirements. By combining the cleaning of the brush 31 with the flushing of the shower head 32, it can ensure that the label is efficiently cleaned in the shortest time to adapt to the ever-increasing production rhythm.

[0027] The water storage tank 33 is provided with a water outlet 34 at the bottom of the higher end, and the water outlet 34 is installed with a filter 35. The design of the water outlet 34 allows the sewage in the water storage tank 33 to be discharged quickly, maintaining the appropriate water level in the tank, and ensuring that the cleaning process is not hindered. This helps to maintain the normal operation of the equipment and avoids the dryness and tidiness of the working area affected by overflow. The filter 35 installed at the water outlet 34 can effectively filter out solid impurities and dirt in the water, ensuring that the discharged water flow is cleaner. This reduces the pollution of drainage to the environment and meets the environmental protection requirements of modern production processes.

[0028] The transmission belt is provided with a limiting component, and the limiting component includes a connecting rod 36 arranged on the inner side of the fixed cover 3, and the connecting rod 36 is connected to a limiting rod 37, and the limiting rod 37 is located above one end of the wire drum, and is used to limit the movement of the wire drum. The limiting rod 37 is located above the wire drum, which can effectively limit the movement of the wire drum, prevent the displacement or tilt of the wire drum due to vibration or other external forces during the transmission process, ensure the stability of the wire drum during the cleaning process, and improve the cleaning effect. By limiting the free movement of the wire drum, the limiting component can avoid damage caused by collision or friction between the wire drum and other components. By designing an adjustable angle of the limiting rod 37, wire drums of different sizes and specifications can be adapted, thereby improving the flexibility of the equipment and meeting diverse cleaning needs.

[0029] The conveyor belt 21 is composed of a plurality of conveyor cross plates 23, and a plurality of leakage holes 24 are evenly distributed on the conveyor cross plates. The presence of the leakage holes 24 can quickly discharge excess water and cleaning agents during the cleaning process, avoid water accumulation on the conveyor belt 21, keep the conveyor belt 21 dry and clean, ensure that the labels will not slip or get stuck during the transportation process, and improve the stability of the transmission. The conveyor cross plates designed with leakage holes 24 can reduce the overall weight of the conveyor belt 21 and reduce the burden on the transmission system, thereby improving the energy efficiency and operating efficiency of the equipment and extending the service life of the equipment. Since the leakage holes 24 can allow water and cleaning agents to pass through, it is also easy to clean after cleaning. At the same time, if any dirt blockage occurs, it can be easily checked and cleaned through the leakage holes 24, simplifying daily maintenance work.

[0030] The driving assembly includes a first driving component 4 linked to the conveyor belt 21, a second driving component 5 linked to the brush 31, and a third driving component 6 for linking with the shower head 32. The three driving components are responsible for the movement of different components respectively. Through the linkage design, the conveyor belt 21, the brush 31 and the shower head 32 can achieve efficient synchronous operation. This coordination mechanism can ensure that each link in the cleaning process is effectively combined to avoid incomplete cleaning due to asynchrony.

[0031] The first driving component 4 includes a rotating shaft 41, and the rotating shaft 41 is connected to an alarm component 7 arranged on the frame 1. A first driving wheel 42 is sleeved on the rotating shaft 41, and a first driving tooth 43 is provided on the first driving wheel 42. The alarm component 7 includes a mounting cover 71 and a driving shaft 72 fixedly mounted on the mounting cover 71. A first rotating plate 73 is rotatably provided on the driving shaft 72. The first rotating plate 73 is linked to a second rotating plate 74. The second rotating plate 74 is linked to an alarm button 77 arranged on the inner wall of the mounting cover 71 and electrically connected to the outside. A second driving wheel 731 is fixedly mounted on the first rotating plate 73, and the second driving wheel 731 is provided with a first driving tooth 43 connected to the first rotating plate 73. The first drive wheel 43 is linked to the second drive tooth 732, the second drive wheel 731 is provided with a telescopic groove 733, the second drive tooth 732 is telescopically arranged in the telescopic groove 733 by a spring 734, the first drive wheel 42 abuts against the inclined surface 735 provided on the second drive wheel 731 to drive the second drive tooth 732 to be compressed into the telescopic groove 733, so that the second drive wheel 731 does not rotate, the first drive wheel 42 abuts against the straight surface 736 provided on the second drive wheel 731 to form a one-way rotation connection, so that the second drive wheel 731 is driven by the first drive wheel 42, and then the first rotating plate 73 drives the second rotating plate 74 to rotate and trigger the alarm button 77. The design of the alarm component 7 provides effective safety monitoring and can monitor the operating status of the equipment in real time. When the equipment fails or operates abnormally, the linkage of the drive shaft 72 and the rotating plate triggers the alarm button 77, and an alarm is issued in time to ensure the safety of the operator. The one-way rotation connection design between the first drive wheel 42 and the second drive wheel 731 ensures the stability of the drive, avoids unnecessary reverse movement, reduces the possibility of misoperation or wear of transmission parts, and thus increases the life of the equipment. When the first drive wheel 42 rotates to cause the second drive wheel 731 to rotate, the triggering of the alarm button 77 forms an efficient feedback mechanism, allowing the operator to understand the status of the equipment in a timely manner. This mechanism ensures that abnormal conditions in operation can be reported quickly, improving operational safety.

[0032] The second rotating plate 74 is provided with a groove 741, and one end of the first rotating plate 73 can be selectively abutted with the groove 741 through a roller 737. The first rotating plate 73 is also provided with a first stop pin 738, and the first stop pin 738 can be selectively clamped with a third rotating plate 75 rotatably mounted on the bottom plate. The third rotating plate 75 is provided with a torsion spring 751, and the third rotating plate 75 is also provided with a protruding toggle portion 752. A fourth rotating plate 76 is also rotatably arranged in the mounting cover 71, and the second rotating plate 74 is provided with a second stop pin 742. One end of the fourth rotating plate 76 is clamped with the second stop pin 742, and the other end is clamped with the toggle portion 752. The abutment position of the fourth rotating plate 76 and the second stop pin 742 is inclined. The design of the first stop pin 738 allows it to be rotatably mounted and connected with the third rotating plate 75, providing more precise limit control. This design ensures that the range of rotation can be effectively limited during the operation of the equipment to avoid misoperation caused by free rotation.

[0033] In a normal state, the roller 737 is engaged with the groove 741 to limit the rotation angle of the second rotating plate 74 and not trigger the alarm button 77 .

[0034] When the rotating shaft 41 of the first driving component 4 rotates reversely, the second driving wheel 731 drives the first driving wheel 42 to rotate, and the first driving wheel 42 drives the first rotating plate 73 to rotate, thereby releasing the abutment limit state between the roller 737 and the groove 741, and the first limiting pin 738 pushes the third rotating plate 75 to rotate, and the abutment portion 752 on the third rotating plate 75 is moved. When the moving force is greater than the elastic force of the torsion spring 751, the third rotating plate 75 moves the fourth rotating plate 76, releasing the abutment limit state between the second limiting pin 742 and the fourth rotating plate 76, so that the second rotating plate 74 can rotate, triggering the alarm button 77, so that personnel can deal with the fault in time to ensure normal production status.

[0035] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

[0036] Although the invention has been described with reference to several specific embodiments, it should be understood that the invention is not limited to the specific embodiments disclosed. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A label cleaning machine, characterized in that: The machine comprises a frame, on which a driving assembly, a conveying assembly and a cleaning assembly are arranged, the conveying assembly comprises a conveying frame arranged in an inclined manner, the conveying frame is provided with a conveying belt for conveying from low to high, the conveying belt is provided with a fixing block for fixing the wire drum, the conveying frame is provided with a fixing cover, and the cleaning assembly comprises a brush arranged in the fixing cover.

2. The label cleaning machine according to claim 1, characterized in that: The fixed cover is provided with a shower head located behind the brush, and the conveying frame is provided with a water storage tank for storing water.

3. The label cleaning machine according to claim 2, characterized in that: The water storage tank is provided with a water outlet at the bottom of a higher end, and a filter screen is installed at the water outlet.

4. The label cleaning machine according to claim 1, characterized in that: The transmission belt is provided with a limiting component, which includes a connecting rod arranged on the inner side of the fixed cover, the connecting rod is connected to the limiting rod, and the limiting rod is located above one end of the wire drum and is used to limit the movement of the wire drum.

5. The label cleaning machine according to claim 1, characterized in that: The conveyor belt is composed of a plurality of conveyor transverse plates, and a plurality of leakage holes are evenly distributed on the conveyor transverse plates.

6. The label cleaning machine according to claim 1, characterized in that: The driving assembly comprises a first driving component linked to the conveyor belt, a second driving component linked to the brush, and a third driving component used to link to the shower head.

7. The label cleaning machine according to claim 1, characterized in that: The first driving component comprises a rotating shaft, the rotating shaft is connected to an alarm component arranged on the frame, the rotating shaft is sleeved with a first driving wheel, the first driving wheel is provided with a first driving tooth, the alarm component comprises a mounting cover and a driving shaft fixedly arranged on the mounting cover, the driving shaft is rotatably provided with a first rotating plate, the first rotating plate is linked with a second rotating plate, the second rotating plate is linked with an alarm button which is arranged on an inner wall of the mounting cover and is electrically connected to the outside, the first rotating plate is fixedly provided with a second driving wheel, the second driving wheel is provided with a second driving tooth linked with the first driving tooth, the second driving wheel is provided with a telescopic groove, the second driving tooth is telescopically arranged in the telescopic groove by a spring, the first driving wheel drives the second driving tooth to be compressed into the telescopic groove by abutting with an inclined surface arranged on the second driving wheel, so that the second driving wheel does not rotate, the first driving wheel forms a one-way rotation connection by abutting with a straight surface arranged on the second driving wheel, so that the second driving wheel is driven by the first driving wheel, and then the first rotating plate drives the second rotating plate to rotate to trigger the alarm button.

8. The label cleaning machine according to claim 7, characterized in that: The second rotating plate is provided with a groove, and one end of the first rotating plate can be selectively abutted against the groove through a roller. The first rotating plate is also provided with a first limit pin, and the first limit pin can be selectively clamped with a third rotating plate rotatably mounted on the bottom plate. The third rotating plate is provided with a torsion spring, and the third rotating plate is also provided with a protruding toggle portion. A fourth rotating plate is also rotatably provided in the mounting cover, and a second limit pin is provided on the second rotating plate. One end of the fourth rotating plate is clamped with the second limit pin, and the other end is clamped with the toggle portion. The abutting position of the fourth rotating plate and the second limit pin is inclined.

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