CN216942262U

CN216942262U - Circular screen printer

Info

Publication number: CN216942262U
Application number: CN202122327993.1U
Authority: CN
Inventors: 张建勇; 石国平; 陆齐峰
Original assignee: Zhejiang Jishan Printing&dyeing Co ltd
Current assignee: Zhejiang Jishan Printing&dyeing Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-07-12
Anticipated expiration: 2031-09-25

Abstract

The application relates to a circular screen printer, which relates to the technical field of printing and dyeing equipment and comprises a rack and a printer body, wherein a drying device for drying dye on cloth is arranged on the rack, the drying device comprises a drying box, the drying box is arranged on the rack, and the cloth penetrates through the drying box; the heating plate is arranged on the drying box and is used for heating and drying the cloth; and the heating assembly is arranged on the drying box and is used for heating the heating plate. This application gets into the stoving case through the cloth behind calico printing machine body stamp, and heating element starts to heat the hot plate, and the hot plate heats the stoving to the cloth to unset dyestuff on the cloth solidifies with higher speed, has reduced the cloth and has flowed the probability on the cloth other positions at follow-up unsolidified dyestuff in transportation process, has improved the stamp quality.

Description

Circular screen printer

Technical Field

The application relates to the technical field of printing and dyeing equipment, in particular to a circular screen printer.

Background

The rotary screen printing is a printing mode for printing color paste in a rotary screen onto a fabric under the driving of pressure by using a scraper. The rotary screen printing machine has the advantages of high production efficiency of the rotary screen printing machine and the characteristics of large patterns and rich colors of the flat screen printing machine, and is recognized as a printing machine which is between the rotary screen printing and the flat screen printing and has a great breakthrough in the printing technology.

Among the correlation technique, can refer to the chinese utility model patent that the grant bulletin number is CN205523015U, it discloses a circular screen printer, including frame, setting cloth feeding device and the stamp device in the frame, be equipped with the preheating device who is used for the flattening cloth in the frame, preheating device sets up between cloth feeding device and the stamp device, preheating device includes the heat conduction cover body that heating source body resistance wire and cover established on the resistance wire, the upper surface and the cloth face contact of the heat conduction cover body, the outside salient of the upper surface of the heat conduction cover body is the arcwall face, and this utility model irones the flattening through preheating device to the fold on the cloth, and the mode of preheating can also make the cloth become soft stamp quality that promotes the cloth.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: after the cloth is printed and dyed by the printing device, part of dye on the cloth is not completely solidified, so that the unsolidified dye of the cloth easily flows to other positions of the cloth in the subsequent conveying process, and the printing quality is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve printing quality, the application provides a circular screen printer.

The application provides a circular screen printer adopts following technical scheme:

a circular screen printer comprises a rack and a printer body, wherein a drying device for drying dye on cloth is arranged on the rack, and the drying device comprises a drying device body;

the drying box is arranged on the rack, and the cloth penetrates through the drying box;

the heating plate is arranged on the drying box and is used for heating and drying the cloth;

and the heating assembly is arranged on the drying box and is used for heating the heating plate.

By adopting the technical scheme, the cloth enters the drying box after being printed by the printing machine body, the heating assembly is started to heat the heating plate, and the heating plate heats and dries the cloth, so that the dye which is not solidified on the cloth is solidified at an accelerated speed, the probability that the dye which is not solidified in the subsequent conveying process of the cloth flows to other positions of the cloth is reduced, and the printing quality is improved.

Optionally, a cavity is formed in the heating plate, and the heating assembly includes;

the heating box is arranged on the rack, and heating liquid is stored in the heating box;

the liquid pump is arranged on the heating box;

the liquid guide pipe is arranged on the liquid pump and is communicated with the cavity;

the drain pipe, the drain pipe sets up on the hot plate and with the inside intercommunication of heating cabinet.

Through adopting above-mentioned technical scheme, the drawing liquid pump starts in with heating cabinet heating fluid suction catheter, and the heating fluid heats the hot plate in getting into the cavity through the catheter, and the heating fluid gets back to the heating cabinet through the drain pipe after the heating and continues the heating to the realization is to the heating work of hot plate, and has improved the heating effect to the hot plate through heating fluid circulation heating.

Optionally, a heat dissipation mechanism for dissipating heat of the dried cloth is arranged on the rack, and the heat dissipation mechanism comprises;

the heat dissipation box is arranged on the rack;

the heat dissipation device comprises a heat dissipation roller, a heat dissipation box and a heat dissipation device, wherein the heat dissipation roller is rotatably arranged on the heat dissipation box, a plurality of heat dissipation rollers are arranged on the heat dissipation roller, cloth bypasses the plurality of heat dissipation rollers, and a plurality of heat dissipation holes are formed in the heat dissipation roller in an array manner;

and the heat radiation fan is arranged on the heat radiation box and is used for air suction and heat radiation of the cloth bypassing the heat radiation roller.

By adopting the technical scheme, the dried cloth bypasses the heat radiation roller, and the heat radiation fan starts to suck and radiate the heat of the cloth on the heat radiation roller, so that the temperature of the cloth is reduced, and the cloth is convenient to subsequently wind and store.

Optionally, a heat recovery device for recovering heat dissipated from the cloth is arranged on the frame, and the heat recovery device comprises;

the air suction cover is arranged on the heat dissipation box, and the heat dissipation fan is arranged in the air suction cover and enables hot air to enter the air suction cover;

the air guide pipe is arranged on the air suction cover and connected with the drying box.

Through adopting above-mentioned technical scheme, radiator fan starts to absorb steam and enters into the guide duct through the cover that induced drafts, and steam leads back the stoving incasement through the guide duct and dries the cloth to realized thermal recycle on the cloth, the heat caused thermal pollution's probability to the environment when having reduced the cloth heat dissipation, and through the recycle to the heat and practiced thrift the resource.

Optionally, an impurity removing mechanism for treating impurities on the cloth entering the printing machine body is arranged on the rack, and the impurity removing mechanism comprises;

the impurity removing box is arranged on the rack, and cloth passes through the impurity removing box and enters the printing machine body;

the vibration assembly is arranged on the impurity removing box and is used for vibrating the cloth;

and the impurity absorbing assembly is arranged on the impurity removing box and is used for absorbing impurities vibrated on the cloth.

Through adopting above-mentioned technical scheme, the cloth gets into the edulcoration case, and the vibration subassembly starts to vibrate the cloth, and the impurity of adhesion shakes out on the cloth at the edulcoration incasement vibration subassembly, and the gettering subassembly starts to absorb the processing to impurity causes the inhomogeneous probability of cloth stamp on having reduced the cloth, has improved cloth stamp quality.

Optionally, the vibration assembly comprises;

the vibration motor is arranged on the impurity removal box;

the rotating shaft is rotatably arranged on the impurity removing box and is connected with an output shaft of the vibration motor;

the beating plate is arranged on the rotating shaft and used for beating the cloth.

Through adopting above-mentioned technical scheme, vibrating motor starts to drive the pivot and rotates, and the pivot rotates and drives the vibrating roller and rotate, and the vibrating roller rotates and drives the bat board and advance to pat to the cloth surface to make cloth surface impurity break away from with the cloth, reduced the quantity of impurity on the cloth.

Optionally, the gettering module comprises;

the impurity absorbing fan is arranged on the impurity removing box and is used for absorbing impurities;

the impurity removing box is provided with a sliding hole, the impurity removing box is arranged on the sliding hole in a sliding manner, and the impurity removing box is provided with a through hole for gas to pass through;

the locating plate, the locating plate setting is on edulcoration frame lateral wall and contradicts with edulcoration case lateral wall.

Through adopting above-mentioned technical scheme, the miscellaneous fan of inhaling starts to absorb impurity removal incasement impurity and moves to and collect on the edulcoration frame, collects the completion back, removes the locating plate and drives the edulcoration frame and break away from with the edulcoration case, clears up impurity on the edulcoration frame, and after the clearance was accomplished, remove the edulcoration frame and slide and install and continue to carry out impurity collection on the hole that slides to realized the collection to the impurity of shaking out on the cloth, reduced impurity and drifted away the probability that causes the pollution to the environment in the environment.

Optionally, a guide mechanism for guiding the cloth is arranged on the machine frame, and the guide mechanism comprises;

the guide roller is rotatably arranged on the rack;

and the driving motor is arranged on the rack, and an output shaft of the driving motor is connected with the guide roller.

Through adopting above-mentioned technical scheme, the guide roll is walked around to the cloth, and driving motor starts to drive the guide roll and rotates, and the guide roll rotates and drives the cloth and remove to the transport of cloth has been realized.

Optionally, a pressing assembly for pressing the cloth on the guide roller is arranged on the frame, and the pressing assembly comprises;

the air pump is arranged on the rack;

the air guide pipe is arranged on the air pump;

and the air nozzle array is arranged on the air duct and is used for blowing the cloth on the guide roller.

Through adopting above-mentioned technical scheme, the air pump starts the extraction gas and gets into the air duct, and the air jet carries out jet-propelled extrusion to cloth on the guide roll, and the cloth supports tightly on the guide roll under atmospheric pressure effect to reduced because the probability that the cloth skidded on the guide roll, improved the direction effect of guide roll to the cloth.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cloth enters the drying box after being printed by the printing machine body, the heating assembly is started to heat the heating plate, and the heating plate heats and dries the cloth, so that the solidification of the dye which is not solidified on the cloth is accelerated, the probability that the dye which is not solidified flows to other positions of the cloth in the subsequent conveying process of the cloth is reduced, and the printing quality is improved;

2. the cloth enters the impurity removing box, the vibration assembly is started to vibrate the cloth, impurities adhered to the cloth are vibrated out of the impurity removing box by the vibration assembly, and the impurity absorption assembly is started to absorb the impurities, so that the probability of uneven cloth printing caused by the impurities on the cloth is reduced, and the cloth printing quality is improved;

3. the air pump is started to pump air to enter the air guide pipe, the air nozzle conducts air injection extrusion on the cloth on the guide roller, and the cloth abuts against the guide roller under the action of air pressure, so that the probability of slipping of the cloth on the guide roller is reduced, and the guide effect of the guide roller on the cloth is improved.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic structural diagram of the impurity removing mechanism in the present application, in which the side wall of the impurity removing box is sectioned, and the impurity removing frame is exploded;

FIG. 3 is a schematic view of a drying apparatus of the present application with the drying box and the side walls of the heating plate shown in section;

FIG. 4 is a schematic structural diagram of a heat dissipating mechanism and a guiding mechanism in the present application, wherein a drying box and a heat dissipating box are cut away;

fig. 5 is an enlarged view of a portion a in fig. 4.

Reference numerals: 1. a frame; 11. a printing machine body; 12. a cloth inlet; 13. a cloth outlet; 14. a feed inlet; 15. a discharge port; 2. a drying device; 21. a drying box; 22. heating plates; 23. a heating assembly; 24. a through hole; 25. a cavity; 26. a heating box; 27. a liquid pump; 28. a catheter; 29. a liquid outlet pipe; 3. a heat dissipation mechanism; 31. a heat dissipation box; 32. a heat dissipating roller; 33. a heat radiation fan; 34. heat dissipation holes; 4. a heat recovery device; 41. an air suction hood; 42. an air guide pipe; 5. a guide mechanism; 51. a guide roller; 52. a drive motor; 53. a vertical plate; 6. a compression assembly; 61. an air pump; 62. an air duct; 63. an air nozzle; 64. a cross bar; 7. an impurity removal mechanism; 71. an impurity removal box; 72. a vibrating assembly; 73. a gettering assembly; 74. a vibration motor; 75. a rotating shaft; 76. beating a plate; 77. a gettering fan; 78. removing impurities; 79. and (7) positioning the plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses circular screen printer.

Referring to fig. 1, the circular screen printer includes a frame 1 and a printer body 11, and a drying device 2 for drying printed cloth is arranged on the frame 1 on one side of the printer body 11.

Referring to fig. 1 and 2, an impurity removing mechanism 7 for treating impurities on cloth entering a printing machine body 11 is arranged on a rack 1, the impurity removing mechanism 7 comprises an impurity removing box 71, a vibration assembly 72 and an impurity absorbing assembly 73, the impurity removing box 71 is fixedly connected to the upper surface of the rack 1, and the impurity removing box 71 is located on one side, close to the cloth input, of the printing machine body 11.

Referring to fig. 2, vibration subassembly 72 sets up on edulcoration case 71 and is used for vibrating the cloth, vibration subassembly 72 includes vibrating motor 74, pivot 75 and clap board 76, vibrating motor 74 fixed connection is on edulcoration case 71 lateral wall, pivot 75 horizontal rotation is connected on edulcoration case 71 one side lateral wall, pivot 75 axis is perpendicular with cloth direction of delivery, pivot 75 one end is worn out edulcoration case 71 and is connected with vibrating motor 74 output shaft outward, clap board 76 fixed connection is on pivot 75, clap board 76 keeps away from pivot 75 and serves and has seted up the fillet, vibrating motor 74 starts to drive pivot 75 and rotates, pivot 75 rotates and drives clap board 76 and rotate and pat the cloth upper surface, make the adnexed impurity of cloth upper surface drop.

Referring to fig. 2, the impurity suction assembly 73 is arranged on the impurity removing box 71 and is used for absorbing impurities under vibration on the cloth, the impurity suction assembly 73 comprises an impurity suction fan 77, an impurity removing frame 78 and a positioning plate 79, the impurity suction fan 77 is fixedly connected to the lower surface of the impurity removing box 71, the impurity suction fan 77 is communicated with the inside of the impurity removing box 71 and has a gap with the upper surface of the rack 1, and an air outlet of the impurity suction fan 77 is vertically downward; the hole of sliding has been seted up on edulcoration case 71 one side lateral wall, and edulcoration frame 78 slides and installs on the hole of sliding and be located between clapper 76 and the gettering fan 77, and locating plate 79 fixed connection deviates from edulcoration case 71 one side lateral wall and contradicts with edulcoration case 71 lateral wall at edulcoration frame 78.

Referring to fig. 1 and 3, drying device 2 includes drying box 21, hot plate 22 and heating element 23, drying box 21 fixed connection is on 1 upper surface of frame, and drying box 21 is located calico printing machine body 11 and keeps away from edulcoration case 71 one side, drying box 21 is close to and offers the cloth inlet 12 that supplies the cloth to get into on the lateral wall of one side of calico printing machine body 11, drying box 21 has seted up out cloth mouth 13 on deviating from calico printing machine body 11 one side lateral wall, hot plate 22 fixed connection just is the horizontality on drying box 21 inside wall, hot plate 22 is located into cloth mouth 12 and goes out cloth mouth 13 top simultaneously, and the cloth passes through from hot plate 22 below when advancing cloth mouth 12 and going out cloth mouth 13, a plurality of through-holes 24 with hot plate 22 lower surface intercommunication are seted up to the array on hot plate 22 upper surface, cavity 25 has been seted up to hot plate 22 inside.

Referring to fig. 1 and 3, the heating assembly 23 is disposed on the drying box 21 and used for heating the heating plate 22, the heating assembly 23 includes a heating box 26, a liquid pumping pump 27, a liquid guide tube 28 and a liquid outlet tube 29, the heating box 26 is fixedly connected to the outer side wall of the drying box 21 adjacent to the cloth inlet 12, heating liquid is stored in the heating box 26 and a heating wire for heating is disposed, the liquid pumping pump 27 is fixedly connected to the side wall of the heating box 26 near the drying box 21, the liquid pumping pump 27 is communicated with the inside of the heating box 26, one end of the liquid guide tube 28 is fixedly connected to the side wall of the heating plate 22 and communicated with the cavity 25, and the other end of the liquid guide tube 28 horizontally penetrates through the side wall of the drying box 21 and is fixedly connected with the liquid pumping pump 27; one end of the liquid outlet pipe 29 is fixedly connected to the side wall of the heating plate 22, which is away from the liquid guide pipe 28, and the other end of the liquid outlet pipe 29 penetrates out of the drying box 21 and is communicated with the inside of the heating box 26.

Referring to fig. 3, after printing, the cloth enters the drying box 21 through the cloth inlet 12, the liquid pump 27 starts to pump the heating liquid in the heating box 26 into the liquid guide tube 28, the heating liquid flows into the cavity 25 through the liquid guide tube 28 to heat the heating plate 22, the heating plate 22 heats and dries the cloth, the heated heating liquid is guided back into the heating box 26 through the liquid outlet tube 29 to be recycled, and finally the cloth is output through the cloth outlet 13.

Referring to fig. 4 and 5, a heat dissipation mechanism 3 for dissipating heat of cloth led out from the cloth outlet 13 is arranged on the rack 1, and the heat dissipation mechanism 3 comprises a heat dissipation box 31, a heat dissipation roller 32 and a heat dissipation fan 33, the heat dissipation box 31 is fixedly mounted on the upper surface of the rack 1, the heat dissipation box 31 is positioned on one side of the heating box 26 away from the printing machine body 11, a feed port 14 is formed in a side wall of the heat dissipation box 31 close to one side of the heating box 26, a discharge port 15 is formed in a side wall of the heat dissipation box 31 away from one side of the heating box 26, the heat dissipation roller 32 is horizontally and rotatably connected to two opposite inner side walls of the heat dissipation box 31, the axis of the heat dissipation roller 32 is perpendicular to the conveying direction of the cloth passing through the cloth outlet 13 from the cloth inlet 12, and the heat dissipation roller 32 is arranged at intervals along the direction perpendicular to the axis of the heat dissipation roller 32;

referring to fig. 4 and 5, the fabric enters the heat dissipation box 31 from the feeding opening 14 and then is led out from the discharging opening 15 by bypassing the plurality of heat dissipation rollers 32, and a plurality of heat dissipation holes 34 for dissipating heat of the fabric are formed in the heat dissipation rollers 32 in an array manner.

Referring to fig. 4 and 5, a heat recovery device 4 for recovering heat in the heat dissipation box 31 is arranged on the heat dissipation box 31, the heat recovery device 4 includes an air suction hood 41 and an air guide pipe 42, the air suction hood 41 is fixedly connected to the inner top wall of the heat dissipation box 31, the opening of the air suction hood 41 is downward and is positioned above the heat dissipation roller 32, the heat dissipation fan 33 is fixedly installed in the air suction hood 41, and the air outlet of the heat dissipation fan 33 is vertically upward; one end of the air duct 42 is fixedly connected to the upper surface of the air suction hood 41, and the other end of the air duct 42 is fixedly connected to the upper surface of the drying box 21 and communicated with the inside of the drying box 21.

Referring to fig. 4 and 5, the dried cloth enters the heat dissipation box 31 through the feeding hole 14 and bypasses the heat dissipation roller 32, the heat dissipation fan 33 starts to suck and dissipate heat to the cloth, hot air sucked by the heat dissipation fan 33 enters the air guide pipe 42 through the air suction hood 41 and is guided back to the drying box 21, and finally the cloth is output from the discharging hole 15.

Referring to fig. 4, a guide mechanism 5 for guiding the cloth is arranged on the rack 1, the guide mechanism 5 includes a guide roller 51 and a driving motor 52, two vertical plates 53 are horizontally fixed on the upper surface of the rack 1 at intervals, the vertical plates 53 are located on one side of the heat dissipation box 31 away from the drying box 21, the guide roller 51 is horizontally and rotatably connected to the side wall of the opposite side of the two vertical plates 53, and the axis of the guide roller 51 is parallel to the axis of the heat dissipation roller 32; the driving motor 52 is fixedly connected to the outer side wall of one of the vertical plates 53, and the output shaft is connected with the guide roller 51.

Referring to fig. 1 and 4, be provided with the pressure tight subassembly 6 that compresses tightly the cloth on the guide roll 51 in the frame 1, pressure tight subassembly 6 includes air pump 61, air duct 62 and air nozzle 63, air pump 61 fixed connection is on frame 1 upper surface, air duct 62 one end fixed connection on air pump 61 upper surface and with the inside intercommunication of air pump 61, the air duct 62 other end is vertical upwards to extend the guide roll 51 top, horizontal pole 64 of air duct 62 top fixedly connected with, horizontal pole 64 axis is parallel with the guide roll 51 axis, air nozzle 63 fixed mounting is on horizontal pole 64, and air nozzle 63 is along violently, 64 axis array is provided with a plurality ofly, air nozzle 63 gas outlet is vertical downwards, air nozzle 63 is used for blowing to the cloth on the guide roll 51 and makes the cloth support tightly on guide roll 51.

The working principle of the embodiment of the application is as follows:

the cloth gets into edulcoration case 71, vibrating motor 74 starts to drive clappers 76 and patts the cloth, make impurity on the cloth drop, then the cloth gets into stamp in the calico printing machine body 11, the cloth after the stamp gets into drying box 21 through entering cloth mouth 12 in, drawing liquid pump 27 starts to extract in the heating cabinet 26 during heating liquid gets into hot plate 22, hot plate 22 heats the cloth and dries, thereby the dyestuff that does not solidify on the cloth with higher speed solidifies, the probability that the dyestuff that the cloth did not solidify flows to the cloth on other positions in follow-up transportation process has been reduced, the stamp quality has been improved.

The cloth after drying gets into and walks around the scattered hot-rolling 32 in the heat dissipation case 31, and radiator fan 33 starts to induced draft the heat dissipation to the cloth, and the hot-blast entering of extraction is induced drafted in cover 41 and is led back to drying case 21 through guide duct 42 and dry the cloth to the heat when having reduced the cloth heat dissipation causes thermal pollution's probability to the environment, and carried out recycle to the heat, practiced thrift the resource.

Then the cloth passes around the guide roller 51 after being output from the heat dissipation box 31, the air pump 61 is started to blow air on the cloth through the air nozzle 63, so that the cloth is pressed against the guide roller 51, and the driving motor 52 is started to drive the guide roller 51 to rotate the cloth to move, thereby realizing the movement of the cloth.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a circular screen printer, includes frame (1) and calico printing machine body (11), its characterized in that: the drying device (2) for drying the dye on the cloth is arranged on the rack (1), and the drying device (2) comprises;

the drying box (21), the drying box (21) is arranged on the rack (1), and cloth penetrates through the drying box (21);

the heating plate (22), the said heating plate (22) is set up on drying box (21) and used for heating and drying the cloth;

the heating assembly (23) is arranged on the drying box (21) and used for heating the heating plate (22).

2. A rotary screen printing machine according to claim 1, wherein: a cavity (25) is formed in the heating plate (22), and the heating assembly (23) comprises;

the heating box (26), the heating box (26) is arranged on the rack (1), and heating liquid is stored in the heating box (26);

the liquid drawing pump (27), the liquid drawing pump (27) is arranged on the heating box (26);

a liquid guide pipe (28), wherein the liquid guide pipe (28) is arranged on the liquid pump (27) and is communicated with the cavity (25);

drain pipe (29), drain pipe (29) set up on hot plate (22) and with heating cabinet (26) inside intercommunication.

3. A rotary screen printing machine according to claim 1, wherein: the rack (1) is provided with a heat dissipation mechanism (3) for dissipating heat of the dried cloth, and the heat dissipation mechanism (3) comprises;

the heat dissipation box (31), the heat dissipation box (31) is arranged on the rack (1);

the heat dissipation device comprises a heat dissipation roller (32), wherein the heat dissipation roller (32) is rotatably arranged on a heat dissipation box (31), the heat dissipation roller (32) is provided with a plurality of heat dissipation holes (34) which are formed in an array mode, and cloth bypasses the plurality of heat dissipation rollers (32);

and the heat radiation fan (33) is arranged on the heat radiation box (31) and is used for sucking and radiating the cloth bypassing the heat radiation roller (32).

4. A rotary screen printing machine according to claim 3, wherein: the rack (1) is provided with a heat recovery device (4) for recovering heat emitted by the cloth, and the heat recovery device (4) comprises;

the air suction cover (41), the air suction cover (41) is arranged on the heat dissipation box (31), and the heat dissipation fan (33) is arranged in the air suction cover (41) and enables hot air to enter the air suction cover (41);

and the air guide pipe (42) is arranged on the air suction cover (41) and is connected with the drying box (21).

5. A rotary screen printing machine according to claim 1, wherein: the frame (1) is provided with an impurity removing mechanism (7) for treating impurities on cloth entering the printing machine body (11), and the impurity removing mechanism (7) comprises;

the impurity removing box (71), the impurity removing box (71) is arranged on the rack (1), and cloth passes through the impurity removing box (71) and enters the printing machine body (11);

the vibration assembly (72) is arranged on the impurity removing box (71) and is used for vibrating the cloth;

and the impurity absorbing assembly (73) is arranged on the impurity removing box (71) and is used for absorbing impurities vibrated on the cloth.

6. A circular screen printing machine according to claim 5, wherein: the vibration assembly (72) includes;

the vibration motor (74), the said vibration motor (74) is set up on the impurity removal box (71);

the rotating shaft (75) is rotatably arranged on the impurity removing box (71) and is connected with an output shaft of the vibrating motor (74);

the flapping plate (76) is arranged on the rotating shaft (75) and is used for flapping the cloth.

7. A circular screen printing machine according to claim 5, wherein: the getter assembly (73) comprises;

the impurity absorbing fan (77) is arranged on the impurity removing box (71) and is used for absorbing impurities;

the impurity removing box (71) is provided with a sliding hole, the impurity removing frame (78) is arranged on the sliding hole in a sliding manner, and the impurity removing frame (78) is provided with a through hole (24) for gas to pass through;

locating plate (79), locating plate (79) set up on edulcoration frame (78) lateral wall and contradict with edulcoration case (71) lateral wall.

8. A circular screen printing machine according to claim 4, wherein: the machine frame (1) is provided with a guide mechanism (5) for guiding the cloth, and the guide mechanism (5) comprises;

the guide roller (51), the said guide roller (51) is set up on the framework (1) rotatably;

the driving motor (52) is arranged on the frame (1), and an output shaft of the driving motor (52) is connected with the guide roller (51).

9. A circular screen printing machine according to claim 1, wherein: a pressing assembly (6) for pressing the cloth on the guide roller (51) is arranged on the rack (1), and the pressing assembly (6) comprises;

the air pump (61), the said air pump (61) is set in framework (1);

the air duct (62), the air duct (62) is set in the air pump (61);

the air nozzles (63) are arranged on the air guide pipe (62) in an array mode, and the air nozzles (63) are used for blowing the cloth on the guide roller (51).