Head and tail material cleaning system

Abstract

The invention discloses a head and tail material cleaning system, which relates to the technical field of monocrystalline silicon head and tail material cleaning, and comprises a box body, a conveying mechanism, a bottom cleaning mechanism, a side cleaning mechanism and a cleaning and purging mechanism, the box body is provided with more than one section; a bottom cleaning mechanism, a side cleaning mechanism and a cleaning and blowing mechanism are sequentially arranged in each section of box body; the conveying mechanism penetrates through all the box bodies, and the head and tail materials are sequentially conveyed to all the mechanisms to be treated. By means of the system, the conical surfaces and the bottom surfaces of the tails and the tails can be cleaned, the system can better adapt to products, continuous operation is formed, and the treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of single crystal silicon head and tail cleaning, and in particular to a head and tail cleaning system. Background Art

[0002] The monocrystalline silicon head and tail materials are the materials located at both ends of the silicon rod during the production process of the monocrystalline silicon rod. These parts usually cannot be directly used in subsequent production because their quality or shape do not meet the requirements. Although the head and tail materials cannot be directly used in the production of solar cell lamp products, they can be processed through cleaning, crushing and other processes to ensure that the surface is clean and free of impurities. The processed products can be supplied to the monocrystalline silicon production enterprises again for re-production.

[0003] During the cleaning process, traditional head and tail materials and edge materials are cleaned by immersion, and the head and tail materials and edge materials are pickled by immersion; the head and tail materials are placed in a material frame, and the material frame is put into the pickling tank, and then they are salvaged after soaking for a certain period of time. The immersion cleaning method takes a long time to clean, and the cleaning effect is greatly affected by the soaking time. Batch cleaning does not form a continuous production operation, cannot meet the edge material processing needs in the factory, and has low efficiency. Our factory designed a cleaning system for edge materials based on the above situation, but because the shape of the edge materials is different from that of the head and tail materials, the edge materials only need to be cleaned on the upper and lower sides, while the head and tail materials are conical structures. This three-dimensional structure cannot be directly applied to the cleaning system of edge materials. Therefore, the applicant designed a cleaning system suitable for head and tail materials to meet the needs of the cleaning section. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a head and tail material cleaning system, through which the conical surface and bottom surface of the head and tail materials can be cleaned, better adapting to the product while forming a continuous operation to improve processing efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A head and tail material cleaning system comprises a box body, a conveying mechanism, a bottom cleaning mechanism, a side cleaning mechanism, and a cleaning and purge mechanism; the box body is provided with more than one section; each section of the box body is provided with a bottom cleaning mechanism, a side cleaning mechanism and a cleaning and purge mechanism in sequence; the conveying mechanism runs through all the boxes and transports the head and tail materials to each mechanism for processing in sequence.

[0007] Preferably, the conveying mechanism comprises: a conveying chain, a driven roller, a first sprocket, a second sprocket, a first motor, a push rod, a driving roller, a third sprocket, a chain, and a second motor; a conveying chain is arranged in the box where the side cleaning mechanism and the cleaning and purging mechanism are located; a first sprocket and a second sprocket are movably arranged at both ends of the conveying chain; the first sprocket is driven by a first motor; a push rod for pushing the head and tail materials to move along the driven roller is arranged on the conveying chain; the driven roller is located between the conveying chains;

[0008] Active rollers are arranged in the box of the cleaning and blowing mechanism; a third sprocket is fixed to one end of the roller shaft of each active roller located at the back of the box; the third sprockets are driven by a chain; and the roller shaft of one of the active rollers is connected to the driving end of the second motor.

[0009] Preferably, the bottom cleaning mechanism includes: a cleaning belt, a counterweight bin plate, a guide rod, a fixed frame, a first lifting cylinder, and a movable sleeve; a cleaning belt is provided in the box where the bottom cleaning mechanism is located, and the cleaning belt is arranged between the driven rollers and is on the same horizontal plane as the driven rollers; bristles for rubbing the bottom of the head and tail materials are provided on the belt surface of the cleaning belt; a fixed frame is provided above the cleaning belt; the fixed frame is fixed to the back plate of the box; a first lifting cylinder is fixed above the fixed frame; a counterweight bin plate is movably provided below the fixed frame; the counterweight bin plate is fixed to one end of the guide rod; a movable sleeve is fixed to the end of the counterweight bin plate; the telescopic end of the first lifting cylinder is slidably connected to the slide groove of the movable sleeve; while the counterweight bin plate drives the fixed frame to move up and down along the guide rod through the first lifting cylinder, the counterweight bin plate has an independent up and down movable range within a certain range through the movable sleeve.

[0010] Preferably, the side cleaning mechanism includes: a support frame, a cleaning cylinder, a connecting shaft, a third motor, a lifting plate, a slider, a lead screw, a fourth motor, and a top cover; a top cover is fixed to the top of the box body provided with the side cleaning mechanism; a support frame is fixed to the inner side of the top cover; a lead screw is movably provided on the support frame; a slider is fixed to the middle part of the lifting plate; the slider cooperates with the lead screw to drive the lifting plate to move up and down; the top of the lead screw is driven by the third motor; a fourth motor is fixed on the lifting plate; the driving end of the fourth motor is connected to the cleaning cylinder by a connecting shaft, and the fourth motor drives the cleaning rotation; bristles are fixed in the cleaning cylinder.

[0011] Preferably, the cleaning and purge mechanism includes: a spray assembly, an air knife assembly; the spray assembly includes an upper spray pipe and a lower spray pipe; the upper spray pipe and the lower spray pipe are connected to a water source; the lower spray pipe is located in the gap of the active roller; the upper spray pipe and the lower spray pipe form a group of spray assemblies; the air knife assembly includes: a guide bar, a fixed bracket, a corner bracket, a side air knife, and a bottom air knife; the air knife assembly is separately arranged in a section of a box body, and guide bars are horizontally fixed to the inner walls on both sides of the box body; a fixed bracket is provided on the bottom surface of the guide bar; a bottom air knife is fixed between the fixed brackets, and the bottom air knife is located in the gap between the active rollers; corner brackets are fixed on the inner walls on both sides of the box body; side air knives are obliquely fixed on the corner brackets, and the side air knives and the bottom air knives form a triangular position relationship on the same vertical plane, and the head and tail materials pass through the middle of the triangular structure formed by the side air knives and the bottom air knife; each of the air knife assemblies is connected to an air source.

[0012] Preferably, a lifting mechanism is provided at the gap position of the driven roller corresponding to the lower part of the side cleaning mechanism; the lifting mechanism comprises: a support bar, a lifting connecting plate, a travel switch, and a second lifting cylinder; the second lifting cylinder is fixed in the back space of the back plate of the box body; the telescopic end of the second lifting cylinder is fixed to one end of the lifting connecting plate; the other end of the lifting connecting plate passes through the back plate and a support bar is fixed on the plate surface; the support bar corresponds to the gap position of the driven roller; a movable groove is provided at the position of the back plate corresponding to the lifting connecting plate; a travel switch is fixed on the outer side of the support bar, and the travel switch is fixed on the bracket, and the bracket is fixed to the side plate of the driven roller; the trigger member of the travel switch is higher than the surface of the driven roller; when the head and tail materials move to the driven roller position above the support bar, the travel switch is triggered by pressing down, and after the support bar is raised by the second lifting cylinder, the surface of the support bar is higher than the pushing rod, and the conveying chain stops moving.

[0013] Preferably, the bottom cleaning mechanism and the side cleaning mechanism are alternately arranged in more than one group; an empty box is provided between the side cleaning mechanism and the box where the spray pipe is located; an empty box is provided between the box where the spray assembly is located and the box where the air knife assembly is located; the spray assembly is provided with more than one group; the air knife assembly is provided with more than one group; each group of the spray assembly and the air knife assembly is separately arranged in a section of the box.

[0014] Preferably, the counterweight bin plate is a hollow structure, and a counterweight block is placed in the hollow structure.

[0015] Preferably, a push block is fixed on the push rod; and a surface of the push block is provided with an arc surface that fits with the side walls of the head and tail materials.

[0016] Preferably, the cleaning belt is tensioned by a belt roller, and the belt roller is driven by a fifth motor; the rotation direction of the cleaning belt is opposite to the conveying direction of the conveyor chain.

[0017] Beneficial effects of the present invention:

[0018] 1. The side cleaning mechanism can clean the conical surface 360°, which is completely matched with the side of the head and tail materials; the bottom cleaning mechanism uses the cleaning belt and the counterweight to pressurize and use friction to complete the cleaning of the bottom surface. It ensures that the head and tail materials are cleaned physically without dead angles.

[0019] 2. After physical friction, the residue attached to the head and tail materials is washed away by spraying. The air knife structure is also improved to adapt to the shape and structure of the head and tail materials, and quickly air-dry the head and tail materials. Better adaptability to the product while forming a continuous operation to improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the connection relationship of the present invention.

[0022] Figure 2 It is a schematic diagram of the internal connection relationship of the box body of the present invention.

[0023] Figure 3 It is a schematic diagram of the connection relationship between the bottom and side cleaning mechanisms of the present invention.

[0024] Figure 4 It is a schematic diagram of the connection relationship of the cleaning and purge mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the back transmission structure of the cleaning and purge mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the overall back connection relationship of the present invention.

[0027] Figure 7 It is a schematic diagram of the connection relationship of the conveying chain of the present invention.

[0028] Figure 8 It is a schematic diagram of the position relationship of the lifting mechanism of the present invention.

[0029] Fig. 9 It is a schematic diagram of the connection relationship of the counterweights of the bottom cleaning mechanism of the present invention.

[0030] Fig.10 It is a schematic diagram of the positional relationship between the air knife assembly and the spray assembly of the present invention.

[0031] In the figure, box 1, back plate 1.1, conveying mechanism 2, conveying chain 211, driven roller 212, first sprocket 213, second sprocket 214, first motor 215, push rod 216, active roller 217, third sprocket 218, chain 219, second motor 220, bottom cleaning mechanism 3, cleaning belt 311, counterweight plate 312, counterweight block 313, guide rod 314, fixed frame 315, first lifting cylinder 316, movable sleeve 317; slide 318, fifth motor 319, side cleaning mechanism 4, support frame 41 1. Cleaning cylinder 412. Connecting shaft 413. Third motor 414. Lifting plate 415. Sliding block 416. Lead screw 417. Fourth motor 418. Top cover 419. Cleaning and blowing mechanism 5. Spray assembly 511. Upper spray pipe 512. Lower spray pipe 513. Air knife assembly 514. Guide strip 515. Fixed bracket 516. Angle bracket 517. Side air knife 518. Bottom air knife 519. Head and tail material 6. Lifting mechanism 7. Support strip 711. Lifting connecting plate 712. Travel switch 713. Second lifting cylinder 714. Bracket 715. DETAILED DESCRIPTION

[0032] like Figure 1 , 2 As shown, a head and tail material cleaning system includes a box 1, a conveying mechanism 2, a bottom cleaning mechanism 3, a side cleaning mechanism 4, and a cleaning and purging mechanism 5; the box 1 is provided with more than one section; each section of the box 1 is provided with a bottom cleaning mechanism 3, a side cleaning mechanism 4 and a cleaning and purging mechanism 5 in turn; the conveying mechanism 2 runs through all the boxes 1, and transports the head and tail materials 6 to each mechanism in turn for processing. The bottom cleaning mechanism 3 and the side cleaning mechanism 4 are alternately provided with more than one group; the first step of cleaning action can be repeated to improve the cleaning effect. There is an empty box between the side cleaning mechanism 4 and the box 1 where the spray pipe is located; there is an empty box between the box 1 where the spray component 511 is located and the box 1 where the air knife component 514 is located; the empty box separates the groups of mechanisms, and a curtain can be hung in the empty box to reduce the impact between the boxes. There is more than one group of spray components 511; there is more than one group of air knife components 514; each group of spray components 511 and air knife components 514 is separately arranged in a section of the box 1 to prevent the sprayed water mist from affecting the subsequent spraying effect.

[0033] like Figure 2 , 3As shown in Figures 4, 6 and 7, the conveying mechanism 2 includes: a conveying chain 211, a driven roller 212, a first sprocket 213, a second sprocket 214, a first motor 215, a push rod 216, an active roller 217, a third sprocket 218, a chain 219 and a second motor 220; a conveying chain 211 is arranged in the box body 1 where the side cleaning mechanism 4 and the cleaning and purge mechanism 5 are located; the first sprocket 213 and the second sprocket 214 are movably provided at both ends of the conveying chain 211; the first sprocket 213 is driven by the first motor 215; a push rod 216 for pushing the head and tail materials 6 to move along the driven roller 212 is arranged on the conveying chain 211; the driven roller 212 is located between the conveying chains 211; a push block is fixed on the push rod 216; the surface of the push block is provided with an arc surface that fits the side of the head and tail materials 6. The head and tail materials 6 on the driven roller 212 are mainly moved by the conveying chain 211 to drive the push rod 216; the active rollers 217 are arranged in the box 1 of the cleaning and purging mechanism 5; the roller shaft of each active roller 217 is located at one end of the back of the box 1 and a third sprocket 218 is fixed; the third sprockets 218 are driven by chains 219; the roller shaft of one of the active rollers 217 is connected to the driving end of the second motor 220. After moving to the active roller 217, the active roller 217 automatically drives the head and tail materials 6 to continue to move.

[0034] like Figure 3 , 9As shown, the bottom cleaning mechanism 3 includes: a cleaning belt 311, a counterweight bin plate 312, a guide rod 314, a fixing frame 315, a first lifting cylinder 316, and a movable sleeve 317; a cleaning belt 311 is arranged in the box 1 where the bottom cleaning mechanism 3 is located, and the cleaning belt 311 is arranged between the driven rollers 212 and is at the same level as the driven rollers 212; bristles for rubbing the bottom of the head and tail materials 6 are arranged on the belt surface of the cleaning belt 311; the cleaning belt 311 is tensioned by the belt roller, and the belt roller is driven by the fifth motor; the rotation direction of the cleaning belt 311 is opposite to the conveying direction of the conveying chain 211. When the head and tail materials 6 pass through the cleaning belt 311, they are rubbed, thereby achieving the effect of preliminary cleaning. Considering that there is enough friction during cleaning, it is necessary to give a certain pressure to the head and tail materials 6 passing through, so a fixed frame 315 is provided above the cleaning belt 311; the fixed frame 315 is fixed to the back plate 1.1 of the box body 1; the first lifting cylinder 316 is fixed above the fixed frame 315; the counterweight bin plate 312 is movably provided below the fixed frame 315; the counterweight bin plate 312 is a hollow structure, and the counterweight block 313 is placed in the hollow structure. The counterweight bin plate 312 is fixed to one end of the guide rod 314; the end of the counterweight bin plate 312 is fixed to a movable sleeve 317; the telescopic end of the first lifting cylinder 316 is slidably connected to the slide groove 318 of the movable sleeve 317; while the counterweight bin plate 312 drives the fixed frame 315 to move up and down along the guide rod 314 through the first lifting cylinder 316, the counterweight bin plate 312 also has an independent up and down movable range within a certain range through the movable sleeve 317. The movable interval is to prevent the first lifting cylinder 316 from directly applying hard pressure. The movable interval can have a certain upward adjustment space while squeezing the counterweight pressure through the slide groove 318. Direct pressure from the first lifting cylinder 316 will damage the head and tail materials.

[0035] like Figure 2 , 3 As shown, the side cleaning mechanism 4 includes: a support frame 411, a cleaning cylinder 412, a connecting shaft 413, a fourth motor 418, a lifting plate 415, a slider 416, a lead screw 417, a fourth motor 418, and a top cover 419; a top cover 419 is fixed to the top of the box body 1 provided with the side cleaning mechanism 4; a support frame 411 is fixed to the inner side of the top cover 419; a lead screw 417 is movably provided on the support frame 411; a slider 416 is fixed to the middle part of the lifting plate 415; the slider 416 cooperates with the lead screw 417 to drive the lifting plate 415 to move up and down; the top of the lead screw 417 is driven by the third motor 414; a fourth motor 418 is fixed to the lifting plate 415; the driving end of the fourth motor 418 is connected to the cleaning cylinder 412 through the connecting shaft 413, and the fourth motor 418 drives the cleaning rotation; bristles are fixed in the cleaning cylinder 412. The diameter of the cleaning cylinder 412 should be larger than the diameter of the head and tail material 6, and the brush in the cylinder contacts the conical surface of the head and tail material 6. The third motor 414 controls the lifting and lowering through the screw 417, and the fourth motor 418 controls the rotation of the cleaning cylinder 412.

[0036] like Figure 2 , 4 As shown in Figures 5 and 10, the cleaning and blowing mechanism 5 includes: a spray assembly 511, an air knife assembly 514; the spray assembly 511 includes an upper spray pipe 512 and a lower spray pipe 513; the upper spray pipe 512 and the lower spray pipe 513 are connected to the water source; the lower spray pipe 513 is located in the gap of the active roller 217; the upper spray pipe 512 and the lower spray pipe 513 form a group of spray assemblies 511; the air knife assembly 514 includes a guide bar 515, a fixed bracket 516, an angle bracket 517, and a side air knife 5 18, bottom air knife 519; the air knife assembly 514 is separately arranged in a section of the box 1, and the inner walls of both sides of the box 1 are horizontally fixed with guide strips 515; the bottom surface of the guide strips 515 is provided with fixed brackets 516; the bottom air knife 519 is fixed between the fixed brackets 516, and the bottom air knife 519 is located at the gap position of the active roller 217; angle brackets 517 are fixed on the inner walls of both sides of the box 1; the side air knife 518 is obliquely fixed on the angle bracket 517, and the clamping frame is used to fix the side air knife 518 in an inclined state. The side air knife 518 and the bottom air knife 519 form a triangular position relationship on the same vertical plane, and the head and tail materials 6 pass through the middle of the triangular structure formed by the side air knife 518 and the bottom air knife 519; each air knife assembly 514 can spray the head and tail materials 6 once through three air knives. Each air knife assembly 514 is connected to a solenoid valve, and the air inlet of the solenoid valve is connected to the air source, and the solenoid valve can be connected to the controller to control opening and closing.

[0037] like Figure 2 , 3 , 8, the specific optimization is as follows:

[0038] A lifting mechanism 7 is provided at the gap position of the driven roller 212 corresponding to the lower side cleaning mechanism 4; the main function of the lifting mechanism is to place the head and tail materials 6 at the cleaning cylinder 412 position, lift the head and tail materials 6, and make the head and tail materials 6 separate from the conveying roller, so as to ensure that the cleaned head and tail materials 6 all enter the cleaning cylinder 412. The lifting mechanism 7 includes: a support bar 711, a lifting connecting plate 712, a travel switch 713, and a second lifting cylinder 714; the second lifting cylinder 714 is fixed in the back space of the back plate 1.1 of the box body 1; the telescopic end of the second lifting cylinder 714 is fixed to one end of the lifting connecting plate 712; the other end of the lifting connecting plate 712 passes through the back plate 1.1 and is fixed with a support bar 711 on the plate surface; the support bar 711 corresponds to the gap position of the driven roller 212; the back plate 1.1 is provided with a movable groove at the position corresponding to the lifting connecting plate 712; the movable groove is covered with a telescopic cover for protection. A travel switch 713 is fixed on the outside of the support bar 711. The travel switch 713 is fixed on a bracket 715. The bracket 715 is fixed to the side plate of the driven roller 212, and the side plate is the frame of the driven roller 212. The trigger of the travel switch 713 is higher than the surface of the driven roller 212. When the head and tail materials 6 move to the position of the driven roller 212 above the support bar 711, the travel switch 713 is triggered by pressing down. After the support bar 711 is raised by the second lifting cylinder 714, the surface of the support bar 711 is higher than the push rod 216, and the conveyor chain stops moving. If the fixing method is not separately introduced above, it is welded or screwed fastened using the common technical means of technical personnel in the industry.

[0039] The workflow is as follows:

[0040] The head and tail materials 6 are put in from one end of the feed, and the head and tail materials 6 first pass through the bottom cleaning mechanism 3, and then reach the side cleaning mechanism. The lifting mechanism lifts the head and tail materials 6, and the cleaning cylinder 412 is reset after descending and cleaning. The lifting mechanism is reset, and the head and tail materials 6 continue to move forward, and after repeatedly passing through 3 groups of alternating bottom cleaning mechanisms 3 and side cleaning mechanisms, they reach the spray assembly 511 for cleaning; the edge and skin materials after cleaning are moved to the position of the air knife assembly 514, and after passing through the air knife assembly 514, the water on the surface of the head and tail materials 6 is blown dry, and the head and tail materials 6 are removed from the equipment.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A head and tail material cleaning system, characterized by: It includes a box body, a conveying mechanism, a bottom cleaning mechanism, a side cleaning mechanism, and a cleaning and purging mechanism; the box body is provided with more than one section; each section of the box body is provided with a bottom cleaning mechanism, a side cleaning mechanism and a cleaning and purging mechanism in sequence; the conveying mechanism runs through all the boxes, and transports the head and tail materials to each mechanism for processing in sequence.

2. A head and tail material cleaning system according to claim 1, characterized in that: The conveying mechanism comprises: a conveying chain, a driven roller, a first sprocket, a second sprocket, a first motor, a push rod, a driving roller, a third sprocket, a chain, and a second motor; a conveying chain is arranged in the box where the side cleaning mechanism and the cleaning and blowing mechanism are located; the first sprocket and the second sprocket are movably arranged at both ends of the conveying chain; the first sprocket is driven by the first motor; a push rod for pushing the head and tail materials to move along the driven roller is arranged on the conveying chain; the driven roller is located between the conveying chains; Active rollers are arranged in the box of the cleaning and blowing mechanism; a third sprocket is fixed to one end of the roller shaft of each active roller located at the back of the box; the third sprockets are driven by a chain; and the roller shaft of one of the active rollers is connected to the driving end of the second motor.

3. A head and tail material cleaning system according to claim 1, characterized in that: The bottom cleaning mechanism includes: a cleaning belt, a counterweight bin plate, a guide rod, a fixed frame, a first lifting cylinder, and a movable sleeve; a cleaning belt is provided in the box where the bottom cleaning mechanism is located, and the cleaning belt is arranged between the driven rollers and is on the same horizontal plane as the driven rollers; bristles for rubbing the bottom of the head and tail materials are provided on the belt surface of the cleaning belt; a fixed frame is provided above the cleaning belt; the fixed frame is fixed to the back plate of the box; a first lifting cylinder is fixed above the fixed frame; a counterweight bin plate is movably provided below the fixed frame; the counterweight bin plate is fixed to one end of the guide rod; a movable sleeve is fixed to the end of the counterweight bin plate; the telescopic end of the first lifting cylinder is slidably connected to the slide groove of the movable sleeve; while the counterweight bin plate drives the fixed frame to move up and down along the guide rod through the first lifting cylinder, the counterweight bin plate has an independent up and down movable range within a certain range through the movable sleeve.

4. A head and tail material cleaning system according to claim 1, characterized in that: The side cleaning mechanism includes: a support frame, a cleaning cylinder, a connecting shaft, a third motor, a lifting plate, a slider, a lead screw, a fourth motor, and a top cover; a top cover is fixed to the top of the box body provided with the side cleaning mechanism; a support frame is fixed to the inner side of the top cover; a lead screw is movably provided on the support frame; a slider is fixed to the middle part of the lifting plate; the slider cooperates with the lead screw to drive the lifting plate to move up and down; the top of the lead screw is driven by the third motor; a fourth motor is fixed to the lifting plate; the driving end of the fourth motor is connected to the cleaning cylinder by a connecting shaft, and the fourth motor drives the cleaning rotation; bristles are fixed in the cleaning cylinder.

5. The head and tail material cleaning system according to claim 1, characterized in that: The cleaning and purge mechanism includes: a spray assembly, an air knife assembly; the spray assembly includes an upper spray pipe and a lower spray pipe; the upper spray pipe and the lower spray pipe are connected to a water source; the lower spray pipe is located in the gap of the active roller; the upper spray pipe and the lower spray pipe form a group of spray assemblies; the air knife assembly includes: a guide bar, a fixed bracket, an angle bracket, a side air knife, and a bottom air knife; the air knife assembly is separately arranged in a section of a box, and guide bars are horizontally fixed to the inner walls on both sides of the box; a fixed bracket is provided on the bottom surface of the guide bar; a bottom air knife is fixed between the fixed brackets, and the bottom air knife is located in the gap between the active rollers; angle brackets are fixed on the inner walls on both sides of the box; side air knives are obliquely fixed on the angle brackets, and the side air knives and the bottom air knives form a triangular position relationship on the same vertical plane, and the head and tail materials pass through the middle of the triangular structure formed by the side air knives and the bottom air knife; each of the air knife assemblies is connected to an air source.

6. A head and tail material cleaning system according to claim 4, characterized in that: A lifting mechanism is provided at the gap position of the driven roller corresponding to the lower part of the side cleaning mechanism; the lifting mechanism comprises: a support bar, a lifting connecting plate, a travel switch and a second lifting cylinder; the second lifting cylinder is fixed in the back space of the back plate of the box body; the telescopic end of the second lifting cylinder is fixed to one end of the lifting connecting plate; the other end of the lifting connecting plate passes through the back plate and a support bar is fixed on the plate surface; the support bar corresponds to the gap position of the driven roller; a movable groove is provided at the position of the back plate corresponding to the lifting connecting plate; a travel switch is fixed on the outer side of the support bar, the travel switch is fixed on the bracket, and the bracket is fixed to the side plate of the driven roller; the trigger member of the travel switch is higher than the surface of the driven roller; when the head and tail materials move to the driven roller position above the support bar, the travel switch is triggered by pressing down, and after the support bar is raised by the second lifting cylinder, the surface of the support bar is higher than the pushing rod, and the conveyor chain stops moving.

7. A head and tail material cleaning system according to claim 5, characterized in that: The bottom cleaning mechanism and the side cleaning mechanism are alternately arranged in more than one group; there is an empty box between the side cleaning mechanism and the box where the spray pipe is located; there is an empty box between the box where the spray assembly is located and the box where the air knife assembly is located; the spray assembly is provided with more than one group; the air knife assembly is provided with more than one group; each group of the spray assembly and the air knife assembly is separately arranged in a section of the box.

8. The head and tail material cleaning system according to claim 3, characterized in that: The counterweight bin plate is a hollow structure, in which a counterweight block is placed.

9. A head and tail material cleaning system according to claim 2, characterized in that: A push block is fixed on the push rod; and a surface of the push block is provided with an arc surface which fits with the side walls of the head and tail materials.

10. The head and tail material cleaning system according to claim 1, characterized in that: The cleaning belt is tensioned by a belt roller, and the belt roller is driven by a fifth motor; the rotation direction of the cleaning belt is opposite to the conveying direction of the conveyor chain.

Images