CN116160761A - Circular screen printer - Google Patents

Abstract

The invention discloses a rotary screen printing machine, which comprises a frame, an impurity cleaning mechanism, a cleaning mechanism and a water absorbing mechanism, wherein the cleaning mechanism is arranged on the frame; the frame comprises a horizontal supporting plate positioned below the second conveying roller and the third conveying roller at the lower side; one end of the horizontal supporting plate, which is far away from the third conveying roller, is provided with a vertical supporting seat; the impurity cleaning mechanism is arranged on the upper end surface of the vertical supporting seat and is arranged outside the pair of second conveying rollers; the impurity cleaning mechanism is used for cleaning impurities on the guide belt; the cleaning mechanism and the water absorbing mechanism are arranged on the horizontal supporting plate, and the cleaning mechanism is close to the impurity cleaning mechanism; the water absorbing mechanism is far away from the impurity cleaning mechanism; the cleaning mechanism and the water absorbing mechanism are arranged at the lower sides of the second conveying roller and the third conveying roller; the cleaning mechanism is used for cleaning the conduction band; the water absorbing mechanism is used for drying the conduction band. The invention reduces the opportunity of impurity pollution to water by the double impurity cleaning of the impurity cleaning mechanism and the horizontal scraping plate before water washing, and effectively reduces the waste of water resources by combining hot water injection.

Description

A rotary screen printing machine

technical field

The invention relates to the field of rotary screen printing machines, in particular to a rotary screen printing machine.

Background technique

The rotary screen printing machine is a screen printing machine that uses a continuously rotating seamless cylindrical screen for printing; the rotary screen is installed on the frame on both sides of the printing machine, and the color paste scraper is installed on the scraper frame inside the rotary screen On the top, the color paste enters the cylinder screen through the paste pump through the scraper knife holder. When printing, the printed fabric is carried out with the circularly running conduction belt, and the conduction belt is a seamless endless conduction belt. When the guide belt runs to the vicinity of the machine head, a layer of patch paste or thermoplastic patch resin is applied by the sizing device, and the fabric is tightly pasted on the guide belt through the cloth feeding device without loosening. The rotary screen rotates at a fixed position above the fabric, and the printing paste is printed on the fabric through the mesh holes through the extrusion of the squeegee. After the fabric is printed, it enters the dryer, the guide belt is circulated under the machine, washed under the machine, and the water droplets are scraped off by the scraper, and the above printing process is repeated.

During belt washing, the belt is immersed in water and then cleaned by rotating brush rollers.

Regarding the above-mentioned related technologies, the inventor believes that there are the following defects: since the conduction band is immersed in water for cleaning, after the conduction band is cleaned for a while, the water in the entire sink will be filled with cleaned impurities (paste paste, color paste, Thread ends, etc.), so the water in the entire sink needs to be replaced, otherwise it will affect the subsequent washing effect, and the amount of water wasted will be large.

Contents of the invention

In order to reduce the technical problem of water resource waste, the invention provides a rotary screen printing machine.

A kind of rotary screen printing machine provided by the invention adopts the following technical scheme:

A rotary screen printing machine, comprising a guide belt transfer unit and a guide belt cleaning device; the guide belt transfer device includes a guide belt, a first transfer roller, a pair of second transfer rollers, a third transfer roller; a pair of second transfer rollers The rollers are vertically distributed up and down; the guide belt passes around the first conveying roller, a pair of the second conveying rollers, and the third conveying roller in turn; the second conveying roller on the lower side and the third conveying roller The guide belt between the conveying rollers is arranged horizontally; the guide belt cleaning device includes a frame, an impurity cleaning mechanism, a cleaning mechanism and a water absorption mechanism; the impurity cleaning mechanism, the cleaning mechanism and the water absorption mechanism are all arranged on the frame and the impurity cleaning mechanism, the cleaning mechanism and the water suction mechanism are distributed sequentially along the conveying direction of the guide belt; the impurity cleaning mechanism is arranged outside a pair of second conveying rollers and is used to clean the guide belt Impurities on the surface; the cleaning mechanism and the water absorption mechanism are arranged on the lower side of the second conveying roller and the third conveying roller; the cleaning mechanism is used for cleaning the guide belt; the water absorbing mechanism is used for drying the guide belt The cleaning mechanism includes a rectangular box-shaped cleaning box with an upper end opening and a hot water spray assembly; the upper ends of a pair of side walls of the cleaning box perpendicular to the conveying direction of the guide belt are respectively formed with guide belts for the guide belt to pass through horizontally. The belt passes through the opening; the pair of side walls of the cleaning box perpendicular to the conveying direction of the guide belt is provided with a horizontal scraper for vertical elastic movement; the hot water spray assembly includes several hot water spray heads arranged in the cleaning box; the The hot water nozzle is used for spraying hot water on the lower surface of the conduction belt.

By adopting the above technical scheme, the guide belt bypasses the first conveying roller, the pair of second conveying rollers, and the third conveying roller in turn, and the guide belt first passes through the impurity cleaning mechanism to clean impurities, thus reducing the impurities entering the subsequent During the cleaning process, the cleaning mechanism scrapes the guide belt with the horizontal scraper close to the impurity cleaning mechanism to further reduce impurities, and then the hot water nozzle sprays hot water on the lower surface of the guide belt, which accelerates the falling of impurities, and then cleans The mechanism is far away from the impurity cleaning mechanism to scrape the guide belt again to complete the cleaning of the guide belt, and finally the water absorbing mechanism absorbs the residual water; when cleaning, the impurity cleaning mechanism and the horizontal scraper on one side of the double impurity cleaning reduce the impurity pollution The chance of water, combined with hot water jets, effectively reduces the waste of water resources.

Optionally, several heating rods are arranged in the cleaning box; the heating rods are located on the lower side of the conduction belt.

By adopting the above technical proposal, the heating rod keeps the inside of the cleaning box at a high temperature, which is beneficial to improving the effect of water washing.

Optionally, a box lifting assembly is provided on the frame; the box lifting assembly is used to drive the cleaning box to lift vertically.

By adopting the above technical solution, the lifting assembly of the box body controls the lifting of the cleaning box, which can change the contact pressure between a pair of horizontal scrapers and the guide belt, so as to make the scraping effect better without damaging the guide belt.

Optionally, the hot water injection assembly includes a water supply pipe arranged horizontally; several heaters are arranged at the water inlet end of the water supply pipe; several vertical water pipes arranged vertically are arranged on the heater; The straight water pipe vertically passes through the lower side wall of the cleaning tank; the upper end of the vertical water pipe is provided with a diverter plate whose length direction is perpendicular to the conveying direction of the guide belt; Uniform distribution; the diverter plate is used to distribute the hot water entering from the vertical water pipe to the hot water nozzle.

By adopting the above technical scheme, the water entering the water supply pipe is heated by the heater to become hot water, and then the hot water is sprayed from the hot water nozzle through the vertical water pipe and the diverter plate, so that the sprayed water is uniform and has a certain amount of heat, and the washing effect is improved .

Optionally, the frame is provided with a nozzle lifting assembly; the nozzle lifting assembly is used to drive the hot water spraying assembly to lift vertically.

By adopting the above technical solution, the nozzle lifting assembly controls the vertical lifting of the hot water injection assembly, so that the distance between the hot water nozzle and the guide belt is controlled to reach a suitable height, and the spraying range and spraying force reach a suitable value, so that The spray effect is good.

Optionally, the impurity cleaning mechanism includes an impurity cleaning seat; the end surface of the impurity cleaning seat close to the guide belt is provided with a vertical moving groove with upper and lower openings for the guide belt to pass through vertically, and one end away from the guide belt is provided with a Collecting trough; several groups of vertically distributed impurity cleaning components are arranged in the vertical moving trough; the impurity cleaning components include impurity scrapers and impurity suction nozzles distributed up and down; the end of the impurity scrapers close to the conduction belt is higher than the One end of the impurity suction nozzle close to the conduction band is lower than the end away from the conduction band and is facing the abutment between the impurity scraper and the conduction band; the impurity suction nozzle communicates with the collection tank; the The collection tank is connected with an external air extraction device.

By adopting the above technical scheme, multiple impurity scrapers are used for scraping, and then multiple impurity suction nozzles that cooperate with the impurity scrapers absorb impurities, which improves the efficiency of impurity cleaning and avoids the accumulation of impurities, preventing subsequent re-contamination in the on the lead.

Optionally, the middle part of the side wall of the collection tank far away from the foreign matter suction nozzle is formed as a semi-circular column-shaped connecting convex ring that is recessed toward the side away from the foreign matter suction nozzle, and a vertical direction is provided at its opening. the filter plate; the connection point of the external air extraction device is located on the connecting convex ring; a filter plate cleaning assembly is arranged in the collection tank; the filter plate cleaning assembly is used to clean the end surface of the filter plate away from the connecting convex ring.

By adopting the above technical solution, the setting of the filter plate can keep impurities in the collecting tank, which is convenient for subsequent cleaning, and the filter plate cleaning component can avoid the blockage of the filter plate.

Optionally, a horizontal drive assembly is provided on the frame; the horizontal drive assembly is used to drive the impurity cleaning mechanism away from or close to the guide belt horizontally.

By adopting the above technical solution, the horizontal driving component controls the impurity cleaning mechanism to be horizontally away from or close to the guide belt, so that the force of the impurity scraper against the guide belt can be controlled, so that the scraping effect is better without damaging the guide belt. good.

Optionally, the water absorbing mechanism includes a conveyor belt; the conveyor belt includes a conveyor belt; the conveying direction of the conveyor belt is perpendicular to the conveying direction of the guide belt; Absorbent layer distributed in direction.

By adopting the above technical scheme, it is beneficial to dry the conduction belt through multiple water-absorbing layers, and the water-absorbing layers can be replaced at the same time.

Optionally, the conveyor belt and the water-absorbing layer are connected by Velcro.

By adopting the above-mentioned technical scheme and the use of magic stickers, the replacement of the water-absorbing layer is convenient.

In summary, the beneficial effects of the present invention are:

1. Through the double impurity cleaning of the impurity cleaning mechanism and the horizontal scraper on one side before washing, the chance of impurity polluting the water is reduced, and combined with hot water injection, the waste of water resources is effectively reduced.

2. While improving the efficiency of impurity cleaning, it avoids the accumulation of impurities and prevents subsequent re-contamination on the conduction band.

Description of drawings

Fig. 1 is a structural schematic diagram of a section of the present invention.

FIG. 2 is a structural schematic diagram of a section of the impurity cleaning mechanism 30 of the present invention.

FIG. 3 is a structural schematic diagram of a section of the cleaning mechanism 40 of the present invention.

FIG. 4 is a structural schematic view of a cleaning mechanism 40 in a left view of the present invention.

Fig. 5 is a partial cross-sectional structural schematic view of the hot water injection assembly of the present invention.

FIG. 6 is a structural diagram of a left view of the water absorbing mechanism 50 of the present invention.

Explanation of reference signs:

10. Guide belt; 11. The first conveying roller; 12. The second conveying roller; 13. The third conveying roller;

20. Rack; 21. Horizontal support plate; 22. Vertical support seat; 220. Horizontal avoidance groove; 221. Horizontal drive support plate;

30. Impurity cleaning mechanism; 31. Impurity cleaning seat; 311. Main cleaning seat; 3110. Collection tank; 3111. Suction channel; 3112. Connecting convex ring; Horizontal driving block; 32, impurity scraper; 33, impurity suction nozzle; 34, filter plate cleaning cylinder; 35, filter plate cleaning block;

40. Cleaning mechanism; 41. Cabinet lifting electric cylinder; 42. Cleaning box; 420. Conductor belt passage port; 421. Lower support plate; 422. Drainage pipe; 423. Sealing ring; 424. Diverting guide sleeve; Scraper; 431, horizontal connecting plate; 44, elastic telescopic assembly; 441, telescopic sleeve; 442, telescopic rod; 443, compression spring; 45, heating rod; Water supply pipe; 471, heater; 472, vertical water pipe; 48, splitter plate; 49, hot water nozzle;

50. Water absorbing mechanism; 51. Conveyor belt; 52. Velcro; 53. Water absorbing layer.

Detailed ways

The present invention will be described in further detail below in conjunction with accompanying drawings 1-6.

The present application discloses a rotary screen printing machine, referring to Fig. 1, comprising a guide belt conveying device and a guide belt cleaning device; the guide belt conveying device comprises a guide belt 10, a first conveying roller 11, a pair of second conveying rollers 12, a third Conveying roller 13; a pair of second conveying rollers 12 are distributed vertically up and down; guide belt 10 passes around first conveying roller 11, a pair of second conveying rollers 12, and the third conveying roller 13 in turn; the second conveying roller 12 on the lower side The guide belt 10 between the third delivery roller 13 is arranged horizontally; the guide belt cleaning device includes a frame 20, an impurity cleaning mechanism 30, a cleaning mechanism 40 and a water suction mechanism 50; the frame 20 includes a second delivery roller 12 positioned at the lower side and the horizontal support plate 21 below the third transmission roller 13; the vertical support seat 22 is formed on the end of the horizontal support plate 21 away from the third transmission roller 13; the impurity cleaning mechanism 30 is arranged on the upper end surface of the vertical support seat 22 and It is arranged on the outside of a pair of second conveying rollers 12; the impurity cleaning mechanism 30 is used to clean up the impurities on the guide belt 10; the cleaning mechanism 40 and the water absorption mechanism 50 are arranged on the horizontal support plate 21 and the cleaning mechanism 40 is close to the impurity cleaning mechanism 30; The water absorption mechanism 50 is away from the impurity cleaning mechanism 30; the cleaning mechanism 40 and the water absorption mechanism 50 are arranged on the underside of the second conveying roller 12 and the third conveying roller 13; the cleaning mechanism 40 is used for cleaning the guide belt 10; the water absorbing mechanism 50 is used for drying the guide belt. Bring 10.

With reference to Fig. 1 and Fig. 2, impurity cleaning mechanism 30 comprises impurity cleaning seat 31; Impurity cleaning seat 31 comprises main cleaning seat 311 of cuboid shape; Belt 10 vertical side cleaning support plates 312; a pair of side cleaning support plates 312 are formed with vertical moving grooves for the guide belt 10 to pass through vertically; a pair of side cleaning support plates 312 are provided with several groups of vertical The impurity cleaning assembly of straight distribution; The impurity cleaning assembly comprises the impurity scraper 32 and the impurity suction nozzle 33 of upper and lower distribution; The end of the impurity scraper 32 close to the guide belt 10 is higher than the end away from the guide belt 10; the end of the impurity suction nozzle 33 close to the guide One end of the belt 10 is lower than the end away from the guide belt 10 and is facing the abutment between the impurity scraper 32 and the guide belt 10; a collection groove 3110 is formed in the main cleaning seat 311; There are several horizontally penetrating suction channels 3111 formed; the suction channels 3111 correspond to the impurity suction nozzles 33 one-to-one and communicate with each other; The side recessed semi-circular columnar connection protruding ring 3112 has a vertical filter plate 3113 at its opening; the connection protruding ring 3112 is connected with an air extraction pipe 3113; the air extraction pipe 3113 is connected to an external air extraction device.

Referring to Fig. 1 and Fig. 2, the side wall of the collection groove 3110 close to the conduction belt 10 is formed into a plurality of vertical surfaces distributed up and down and the distance between the vertical surface on the lower side and the conduction belt 10 is smaller than the vertical distance between the adjacent upper side. The distance between the straight face and the conduction band 10; the suction channel 3111 corresponds to the vertical face one by one; this can prevent the impurities inhaled from the upper side from entering the suction on the lower side along the side wall of the collection groove 3110 near the conduction band 10 In the air passage groove 3111 ; the bottom of the main cleaning seat 311 is provided with a sewage pipe for recovering impurities in the collection groove 3110 .

Referring to Fig. 1 and Fig. 2, a filter plate cleaning assembly is arranged in the collection tank 3110; the filter plate cleaning assembly is used to clean the end face of the filter plate away from the connecting convex ring 3112; The filter plate cleaning cylinder 34; the piston rod lower end of the filter plate cleaning cylinder 34 is fixed with a filter plate cleaning piece 35; the filter plate cleaning piece 35 becomes a right angle trapezoid; The plate cleaning block 35 is slidably arranged on the side wall of the collection tank 3110 away from the guide belt 10 ;

With reference to Fig. 1-Fig. 3, the upper end surface of vertical support seat 22 is provided with horizontal driving assembly; The upper end surface of vertical support seat 22 is formed with a pair of horizontal driving support plates 221 parallel to guide belt 10; A pair of horizontal guide posts are formed vertically between the drive support plates 221; the horizontal drive assembly includes a horizontal drive threaded rod 37 that is vertically pivoted and connected between the pair of horizontal drive support plates 221; There is a horizontal drive motor 36; one end of the horizontal drive threaded rod 37 is fixed to the horizontal drive motor 36; connected; the lower end surface of the main cleaning seat 311 is formed with a horizontal drive block 313; the horizontal drive block 313 is horizontally sleeved on a pair of horizontal guide columns and vertically screwed on the horizontal drive threaded rod 37.

Referring to Fig. 1, Fig. 3-Fig. 5, the cleaning mechanism 40 includes a rectangular box-shaped cleaning box 42 with an open upper end, a hot water spray assembly, a box lifting assembly and a nozzle lifting assembly.

Referring to Fig. 1, Fig. 3-Fig. 5, the upper ends of a pair of side walls of the cleaning box 42 perpendicular to the conveying direction of the guide tape 10 are respectively formed with a guide tape passing port 420 for the guide tape 10 to pass through horizontally; the cleaning box 42 is perpendicular to the guide tape A pair of side walls in the conveying direction are vertically elastically movable to be provided with horizontal scrapers 43; a pair of horizontal scrapers 43 are formed with horizontal connecting plates 431 on the end faces away from each other; a pair of cleaning boxes 42 perpendicular to the conveying direction of the guide belt 10 A lower support plate 421 is respectively formed on the lower end of the end surface; a number of elastic telescopic components are arranged between the lower support plate 421 and the horizontal connecting plate 431 on the same side; The telescopic sleeve 441 formed on the upper end surface of the lower support plate 421 and the compression spring 443 sleeved on the telescopic rod 442; the telescopic rod 442 is vertically sleeved on the telescopic sleeve 441; the upper end of the compression spring 443 is against the horizontal connecting plate The lower end surface and the lower end of 431 are against the upper end surface of the telescopic sleeve 441 .

Referring to Fig. 1, Fig. 3-Fig. 5, the box lifting assembly includes four box lifting electric cylinders 41 distributed in a rectangle; the cleaning box 42 is fixed on the upper ends of the piston rods of the four box lifting electric cylinders 41.

Referring to Fig. 1, Fig. 3-Fig. 5, the hot water injection assembly includes a horizontally arranged water supply pipe 47; the water inlet end of the water supply pipe 47 is provided with several heaters 471; the heater 471 is provided with several vertically arranged vertical water pipes 472; the lower side wall of the cleaning box 42 is formed with a vertical perforation for the vertical water pipe 472 to pass through; the side wall of the vertical perforation is provided with a sealing ring 423; the upper end of the vertical water pipe 472 is provided with a lengthwise vertical Diverter plate 48 in the conveying direction of guide belt 10; the interior of diverter plate 48 is formed with a rectangular groove-like cavity; the upper end surface of diverter plate 48 is provided with a number of hot water nozzles 49 evenly distributed along the length direction of diverter plate 48 The cavity of the splitter plate 48 communicates with the hot water nozzle 49 and the vertical water pipe 472 respectively;

Referring to Fig. 1, Fig. 3-Fig. 5, a horizontal avoidance groove 220 is formed on the vertical support base 22; the water supply pipe 47 passes through the horizontal avoidance groove 220 horizontally; The upper end surface of the nozzle and the lower side wall of the horizontal avoidance groove 220; the upper end of the piston rod of the nozzle lifting electric cylinder 46 is fixed with a support connecting plate 461; the water supply pipe 47 is fixed on the upper end surface of a pair of supporting connecting plates 461 Above; the lower end surface of the diverter plate 48 is formed with a number of vertically arranged diverter guide posts 481; the lower side wall of the cleaning box 42 is formed with a number of diverter guide sleeves 424; the diverter guide posts 481 are vertically inserted into the diverter guide sleeves 424 .

With reference to Fig. 1 and Fig. 3, some heating rods 45 are arranged in the cleaning box 42; The heating rods 45 are positioned at the underside of the conduction belt 10; In this way, the water retained in the cleaning box 42 is heated, so that the water washing environment of the conduction belt 10 is at a high temperature, and the effect of water washing is improved.

Referring to Fig. 1 and Fig. 3, a drainpipe 422 is provided on the bottom surface of the cleaning tank 42; the drainpipe 422 is used for subsequent water discharge, which is beneficial to subsequent water recycling.

With reference to Fig. 1 and Fig. 6, water absorbing mechanism 50 comprises conveyer belt; Conveyor belt comprises conveyer belt 51; The conveying direction of conveyer belt 51 is perpendicular to the conveying direction of guide belt 10; The water-absorbing layer 53 distributed in the conveying direction; the conveyor belt 51 and the water-absorbing layer 53 are connected by Velcro 52; The old water-absorbing layer 53 can be torn off, and then one end of the new water-absorbing layer 53 is adhered to the Velcro 52, and can be connected to the conveyor belt 51 successively along with the transmission of the conveyor belt 51, which is convenient for disassembly and assembly.

The working principle of a kind of rotary screen printing machine of the present application is:

The fabric is separated from the guide belt 10 by the first conveying roller 11, and then the guide belt 10 passes through a pair of second conveying rollers 12 and third conveying rollers 13 in sequence; Scrape the outer surface of the guide belt 10, so that most of the impurities are scraped off, and the scraped impurities are immediately sucked by the impurity suction nozzle 33 and enter the collection tank 3110; The horizontal scraper 43 scrapes the guide belt 10 twice to reduce the impurities entering the cleaning box 42 again, and then the hot water nozzle 49 sprays hot water on the outer surface of the guide belt 10, and finally the cleaning box 42 is far away from the impurity cleaning mechanism 30. The horizontal scraper 43 wipes the guide belt 10 three times, thus completing the cleaning of the guide belt, and finally the water-absorbing layer 53 on the conveyor belt 51 wipes the outer surface of the guide belt 10 .

The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the present invention should be covered by the protection scope of the present invention Inside.

Claims (10)

1. A rotary screen printing machine, characterized in that: it includes a guide belt transfer unit and a guide belt cleaning device; the guide belt transfer device includes a guide belt (10), a first transfer roller (11), a pair of second transfer roller (12), the third conveying roller (13); a pair of second conveying rollers (12) vertically distributed up and down; the guide belt (10) bypasses the first conveying roller (11), a pair of The second conveying roller (12) and the third conveying roller (13); the guide belt (10) between the second conveying roller (12) and the third conveying roller (13) on the lower side is horizontal Setting; the guide belt cleaning device includes a frame (20), an impurity cleaning mechanism (30), a cleaning mechanism (40) and a water absorption mechanism (50); the impurity cleaning mechanism (30), the cleaning mechanism (40) and the The water absorption mechanism (50) is all set on the frame (20), and the impurity cleaning mechanism (30), the cleaning mechanism (40) and the water absorption mechanism (50) are arranged along the guide belt (10) The conveying direction is distributed sequentially; the impurity cleaning mechanism (30) is arranged outside a pair of second conveying rollers (12) and is used to clean the impurities on the guide belt (10); the cleaning mechanism (40) and the The water absorbing mechanism (50) is arranged on the lower side of the second conveying roller (12) and the third conveying roller (13); the cleaning mechanism (40) is used to clean the conduction belt (10); the water absorbing The mechanism (50) is used to dry the guide belt (10); the cleaning mechanism (40) includes a rectangular box-shaped cleaning box (42) with an upper end open and a hot water spray assembly; the cleaning box (42) is perpendicular to the guide belt The upper ends of a pair of side walls in the belt conveying direction are respectively formed with guide belt passage ports (420) for the guide belt to pass through horizontally; the cleaning box (42) moves vertically elastically on the pair of side walls perpendicular to the guide belt conveying direction A horizontal scraper (43) is provided; the hot water spray assembly includes several hot water spray heads (49) arranged in the cleaning tank (42); the hot water spray heads (49) are used for the lower Spray hot water on the surface. 2. A rotary screen printing machine according to claim 1, characterized in that: the cleaning box (42) is provided with several heating rods (45); the heating rods (45) are located on the guide belt (10) the underside of the 3. A rotary screen printing machine according to claim 1, characterized in that: the frame (20) is provided with a box lifting assembly; the box lifting assembly is used to drive the cleaning box (42 ) vertical lift. 4. A rotary screen printing machine according to claim 1, characterized in that: the hot water injection assembly includes a horizontal water supply pipe (47); the water inlet end of the water supply pipe (47) is provided with several A heater (471); the heater (471) is provided with several vertically arranged vertical water pipes (472); the vertical water pipes (472) vertically pass through the lower side of the cleaning tank (42) wall; the upper end of the vertical water pipe (472) is provided with a diverter plate (48) whose length direction is perpendicular to the conveying direction of the guide belt (10); the hot water nozzle (49) is The length direction is evenly distributed; the splitter plate (48) is used to distribute the hot water entering from the vertical water pipe (472) to the hot water nozzle (49). 5. A rotary screen printing machine according to claim 1 or 4, characterized in that: the frame (20) is provided with a nozzle lifting assembly; the nozzle lifting assembly is used to drive the hot water spraying assembly vertically lift. 6. A rotary screen printing machine according to claim 1, characterized in that: the impurity cleaning mechanism (30) includes an impurity cleaning seat (31); the impurity cleaning seat (31) is close to the guide belt (10) The end surface of the guide belt (10) is provided with a vertical moving groove with upper and lower openings for the guide belt (10) to pass through vertically, and a collecting groove (3110) is provided at the end away from the guide belt (10); several groups of vertical moving grooves are arranged in the vertical moving groove. Impurity cleaning assembly distributed straightly; the impurity cleaning assembly includes impurity scrapers (32) and impurity suction nozzles (33) distributed up and down; the end of the impurity scraper (32) close to the conduction band (10) is higher than the end far away from the conduction band One end; the end of the impurity suction nozzle (33) close to the conduction band (10) is lower than the end away from the conduction band and is facing the abutment between the impurity scraper (32) and the conduction band (10); the The impurity suction nozzle (33) communicates with the collection tank (3110); the collection tank (3110) is connected with an external air extraction device. 7. A rotary screen printing machine according to claim 6, characterized in that: the middle part of the side wall of the collection tank (3110) away from the impurity suction nozzle (33) is formed to move away from the impurity suction nozzle ( 33) One side of the recessed semi-circular cylindrical connecting convex ring (3112) and a vertical filter plate (3113) is provided at the opening; the connection point of the external air extraction device is located on the connecting convex ring (3112) A filter plate cleaning assembly is provided in the collection tank (3110); the filter plate cleaning assembly is used to clean the end surface of the filter plate away from the connecting convex ring (3112). 8. A rotary screen printing machine according to claim 1, characterized in that: the frame (20) is provided with a horizontal drive assembly; the horizontal drive assembly is used to drive the impurity cleaning mechanism (30) horizontally away from or near the conduction band (10). 9. A rotary screen printing machine according to claim 1, characterized in that: the water absorption mechanism (50) includes a conveyor belt; the conveyor belt includes a conveyor belt (51); the conveying direction of the conveyor belt (51) It is perpendicular to the conveying direction of the guide belt (10); the conveyer belt (51) is detachably connected with several water-absorbing layers (53) distributed along the conveying direction of the guide belt (10). 10. A rotary screen printing machine according to claim 9, characterized in that: the conveyor belt (51) and the water-absorbing layer (53) are connected by Velcro (52).

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