CN114434961B

CN114434961B - Printing machine roller

Info

Publication number: CN114434961B
Application number: CN202210145629.XA
Authority: CN
Inventors: 舒一苒; 赵宇琪
Original assignee: Hangzhou Mingshi Culture Communication Co ltd
Current assignee: Hangzhou Mingshi Culture Communication Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2023-06-02
Anticipated expiration: 2042-02-17
Also published as: CN114434961A

Abstract

The invention relates to the technical field of printing, in particular to a printer roller, which comprises a roller frame, wherein a roller is arranged on the front side inside the roller frame, roller shafts on the left side and the right side of the roller are respectively and rotatably connected with left side plates and right side plates of the roller frame, a motor is fixedly connected on the right side of the roller frame through a frame, the roller shaft on the right side of the roller penetrates through the right side plate of the roller frame and is fixedly connected with an output shaft of the motor, and a cleaning mechanism is arranged on the rear side of the roller; the upper end face of the roller frame is fixedly connected with an ink box, and a plurality of ink conveying pipes are horizontally and equidistantly communicated with the lower end face of the ink box. When the roller rotates to the position of the collecting box, the magnet at the position of the feeding hole of the collecting box can attract the punch head in the micropore on the roller, so that the punch head ejects out the micropore from impurities deposited in the micropore, the impurities drop onto the material guide plate under the scraping action of the scraping plate, enter the material receiving groove along the material guide plate, excessive impurity accumulation in the micropore is avoided, glazing is avoided, meanwhile, cleaning can be performed without stopping the machine, and the working efficiency is improved.

Description

Printing machine roller

Technical Field

The invention relates to the technical field of printing, in particular to a printing machine roller.

Background

The printing efficiency of roller printer is higher, uses extensively, and current roller printer is first with one side of printing roller submerge in printing ink when printing, and printing ink can adhere to on the outer peripheral face of printing roller, along with the rotation of printing roller with printing ink printing to paper or surface fabric, in order to guarantee the printing quality, can compress tightly the surface fabric on the printing roller through rigid compression roller when printing.

In the existing printing roller, some residual impurities are accumulated on the rubber surface of the printing roller during the printing process, wherein some residues can be cleaned by water or solvent, and a small amount of impurities still remain at the bottoms of micropores on the rubber surface. These residues accumulate in the holes for a long time, and under the action of printing pressure and heat, the surface of the printing roller finally loses microporosity to be glazed, if the glazing cannot be timely treated, the glazed layer becomes thicker, so that the surface area of the printing roller is greatly reduced, the transfer performance of the printing roller to ink and fountain solution is poor, and printing is difficult.

At present, the cleaning method for glazing impurities in micropores of a printing roller in the market is usually to disassemble the printing roller to remove the impurities in a manual cleaning mode after stopping, however, most of printing work is continuous operation, once stopping greatly influences the production efficiency, and meanwhile, the manual cleaning speed is low and the working efficiency is low.

In view of the above, the present invention proposes a printer roller, which solves the above-mentioned technical problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a printing machine roller, which solves the problems that: the existing cleaning method for glazed impurities in micropores of a printing roller in the market generally comprises the steps of detaching the printing roller after stopping, and removing impurities by a manual cleaning mode, however, most of printing work is continuous operation, once stopping, the production efficiency is greatly influenced, meanwhile, the manual cleaning speed is lower, and the working efficiency is low;

in order to achieve the above purpose, the present invention is realized by the following technical scheme:

the printing machine roller comprises a roller frame, wherein a roller is arranged on the front side inside the roller frame, roller shafts on the left side and the right side of the roller are respectively connected with left side plates and right side plates of the roller frame in a rotating mode, a motor is fixedly connected to the right side of the roller frame through a frame, the roller shaft on the right side of the roller penetrates through the right side plates of the roller frame and is fixedly connected with an output shaft of the motor, and a cleaning mechanism is arranged on the rear side of the roller;

the upper end face of the roller frame is fixedly connected with an ink box, a plurality of ink conveying pipes are horizontally and equidistantly communicated with the lower end face of the ink box, the lower ends of the ink conveying pipes are communicated with a coating head, and the coating head is located right above the roller.

Preferably, the upper end face of the coating head is communicated with a plurality of sleeves corresponding to the ink conveying pipes, the lower ends of the ink conveying pipes are inserted into the sleeves in a sliding mode, and sealing rings are fixedly connected to the inner surfaces of the sleeves.

Preferably, the coating head is of an inverted trapezoid cavity structure, a plug plate is arranged at the lower end of an internal cavity of the coating head, and a sponge cushion is fixedly connected to the position of an ink outlet at the lower end of the coating head;

four struts are fixedly connected with the annular surface of the lower end of the ink conveying pipe at equal intervals, and the lower ends of the struts are fixedly connected with the upper end face of the plug plate respectively.

Preferably, the center positions of the left side surface and the right side surface of the coating head are fixedly connected with a support column, the other ends of the support column are respectively and fixedly connected with a sleeve, the inside of the sleeve is inserted with a push rod, and the upper ends of the push rod are respectively and fixedly connected with the top plate of the roller frame;

the center of the lower end surface of the sleeve is fixedly connected with a vertical rod, and the head of the vertical rod is of a hemispherical structure.

Preferably, the inner bottom surface of the sleeve is fixedly connected with a primary spring, the upper end of the primary spring is fixedly connected with the lower end surface of the ejector rod, cams are respectively arranged below the vertical rods, and the cams are respectively fixedly connected with roller shafts on the left side and the right side of the roller.

Preferably, a plurality of rectangular grooves are formed in the roller at equal intervals and close to the annular outer surface, and a plurality of micropores penetrating into the rectangular grooves are formed in the annular outer surface of the roller at equal intervals and horizontally corresponding to each rectangular groove.

Preferably, a punch is inserted into the micropore, a transverse plate is arranged in the rectangular groove close to the micropore, and the tail of the punch is fixedly connected with one side of the transverse plate close to the micropore;

and one side of the transverse plate, which is far away from the micropore, is horizontally and equidistantly fixedly connected with a plurality of secondary springs, and the other ends of the secondary springs are fixedly connected with one side of the rectangular groove, which is far away from the micropore.

Preferably, the cleaning mechanism comprises a collecting box, a connecting rod, a scraping plate and a material guide plate;

the collecting box is arranged at the lower position of the rear side of the roller, the left side surface and the right side surface of the collecting box are respectively and fixedly connected with the left side plate and the right side plate of the roller frame through connecting rods, a feed inlet is formed above the front side surface of the collecting box, the scraping plate is fixedly connected to the upper end of the feed inlet, the scraping plate is of an arc-shaped structure, and the front end of the scraping plate is attached to the annular outer surface of the roller;

the guide plate is obliquely and fixedly connected to the lower end of the feed inlet, and the front end of the guide plate is close to the annular outer surface of the roller.

Preferably, a magnet is arranged between the scraping plate and the material guide plate, the left end and the right end of the magnet are respectively fixedly connected with the left side wall and the right side wall of the feeding hole, a notch is formed in the lower half part of the rear side surface of the collecting box, and a material receiving groove is inserted in the notch.

Preferably, a stirring mechanism is arranged in the ink box, and the stirring mechanism comprises a primary belt wheel, a secondary belt wheel and a stirring paddle;

the stirring paddle is located at the center of the inside of the ink tank, the left end of the rotating shaft of the stirring paddle is rotationally connected with the left side face of the inside of the ink tank, the right end of the rotating shaft of the stirring paddle penetrates through the right side of the ink tank and is fixedly connected with a secondary belt wheel, the primary belt wheel is fixedly connected with the end of the motor output shaft, and the primary belt wheel is rotationally connected with the secondary belt wheel through a belt.

Compared with the prior art, the invention has the beneficial effects that:

1. when the roller rotates to the position of the collecting box, the magnet at the position of the feeding hole of the collecting box attracts the punch head in the micropore on the roller, so that the punch head ejects impurities deposited in the micropore out of the micropore, the impurities drop onto the material guide plate under the scraping action of the scraping plate, enter the material receiving groove along the material guide plate, the excessive accumulation of the impurities in the micropore is avoided, glazing is avoided, meanwhile, cleaning can be performed without stopping, and the working efficiency is improved;

2. the motor drives the rotary in-process of roller and improves power for rabbling mechanism simultaneously, stirs the chinese ink in the china ink case through rabbling mechanism, prevents that chinese ink from taking place to deposit and influence printing effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 2 in accordance with the present invention;

FIG. 5 is a rear elevational view of the overall structure of the present invention;

FIG. 6 is an enlarged view of the invention at D in FIG. 2;

FIG. 7 is an enlarged view of the invention at E in FIG. 2;

fig. 8 is an enlarged view of the invention at F in fig. 3.

Reference numerals illustrate:

1. a roller frame; 11. a roller; 12. a motor; 13. an ink tank; 14. an ink delivery tube; 141. a support rod; 142. a plug plate; 15. a coating head; 151. a sponge cushion; 152. a sleeve; 2. a stirring mechanism; 21. a primary pulley; 22. a secondary belt pulley; 23. stirring paddles; 3. a cam; 31. a vertical rod; 32. a sleeve; 33. a push rod; 34. a support post; 35. a primary spring; 4. a cleaning mechanism; 41. a collection box; 42. a connecting rod; 43. a notch; 44. a receiving groove; 45. a magnet; 46. a scraper; 47. a material guide plate; 5. rectangular grooves; 51. a secondary spring; 52. a cross plate; 53. a punch; 54. micropores.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the invention solves the technical problems that the production efficiency is greatly affected once the printing machine is stopped, the manual cleaning speed is low and the working efficiency is low by providing the printing machine roller and solving the technical problems that the cleaning method for the glazed impurities in the micropores of the printing roller in the market in the prior art usually comprises the steps of detaching the printing roller to remove the impurities in a manual cleaning mode after stopping;

the technical scheme in the embodiment of the invention aims to solve the technical problems, and the overall thought is as follows: when the roller rotates to the position of the collecting box, the magnet at the position of the feed inlet of the collecting box attracts the punch head in the micropore on the roller, so that the punch head ejects impurities deposited in the micropore out of the micropore, the impurities drop onto the material guide plate under the scraping action of the scraping plate, enter the material receiving groove along the material guide plate, excessive accumulation of the impurities in the micropore is avoided, and glazing is avoided;

in order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 8, the present invention provides a technical solution:

the utility model provides a printing machine roller, includes roller frame 1, the inside front side of roller frame 1 is equipped with roller 11, and the roller of roller 11 left and right sides rotates with roller frame 1 respectively and is connected, roller frame 1 right side is through frame fixedly connected with motor 12, and roller frame 1 right side roller runs through roller frame 1 right side board and with the output shaft fixed connection of motor 12, roller 11 rear side is equipped with clearance mechanism 4, roller frame 1 up end fixedly connected with ink tank 13, and the horizontal equidistance intercommunication of terminal surface has a plurality of inking pipe 14 under the ink tank 13, inking pipe 14 lower extreme intercommunication has coating head 15, and coating head 15 is located roller 11 directly over.

When the ink box is in operation, the roller 11 is driven by the starting motor 12 to rotate anticlockwise, ink in the ink box 13 enters the coating head 15 through the ink conveying pipe 14, the ink is coated on the upper end face of the roller 11 through the coating head 15, the ink is printed on fabric along with the movement of the roller 11 to the lower part of the roller 11, then the roller 11 moves to the position of the cleaning mechanism 4, the surface of the roller 11 is scraped and cleaned through the cleaning mechanism 4, and therefore the surface cleanliness of the roller 11 is guaranteed, and the printing quality is guaranteed.

As an embodiment of the present invention, as shown in fig. 2 to 6, the upper end surface of the coating head 15 is correspondingly connected with a plurality of sleeves 152 corresponding to the ink delivery tube 14, the lower end of the ink delivery tube 14 is slidably inserted into the sleeves 152, the inner surface of the sleeves 152 is fixedly connected with a sealing ring, the coating head 15 has an inverted trapezoid cavity structure, the lower end of the cavity inside the coating head 15 is provided with a plug plate 142, the position of the ink outlet at the lower end of the coating head 15 is fixedly connected with a foam-rubber cushion 151, the annular surface of the lower end of the ink delivery tube 14 is annularly and equidistantly fixedly connected with four struts 141, the lower ends of the struts 141 are respectively and fixedly connected with the upper end surface of the plug plate 142, the central positions of the left side surface and the right side surface of the coating head 15 are respectively and fixedly connected with struts 34, the other ends of the struts 34 are respectively and fixedly connected with sleeves 32, the inner surfaces of the sleeves 32 are inserted into ejector rods 33, the upper ends of the ejector rods 33 are respectively and fixedly connected with the top plates of the roller frames 1, the central positions of the lower end surfaces of the sleeves 32 are fixedly connected with vertical rods 31, the heads 31 are in a hemispherical structure, the inner bottom surfaces of the sleeves 32 are fixedly connected with primary springs 35, the upper end surfaces of the primary springs 35 and the upper ends of the primary springs 35 are respectively and the lower ends of the vertical rods are fixedly connected with the cams 3, and the left side shafts and the lower ends of the roller shafts are respectively and fixedly connected with the left sides and the roller shafts 3 and the lower ends and 3 are respectively.

In operation, as the lower end of the inking tube 14 is slidingly inserted in the sleeve 152, the annular surface of the lower end of the inking tube 14 is fixedly connected with four struts 141 at equal intervals, the lower ends of the struts 141 are respectively and fixedly connected with the upper end surface of the plug plate 142, the center positions of the left and right side surfaces of the coating head 15 are fixedly connected with the support posts 34, the other ends of the support posts 34 are respectively and fixedly connected with the sleeve 32, the inside of the sleeve 32 is inserted with the ejector rod 33, the upper end of the ejector rod 33 is respectively and fixedly connected with the top plate of the roller frame 1, the inner bottom surface of the sleeve 32 is fixedly connected with the primary spring 35, the upper end of the primary spring 35 is fixedly connected with the lower end surface of the ejector rod 33, the sleeve 32 moves downwards under the elastic force of the primary spring 35 to drive the coating head 15 to move downwards, and the plug plate 142 is separated from the lower end of the cavity inside the coating head 15, the ink above the plug plate 142 flows onto the sponge cushion 151 at the ink outlet position at the lower end of the coating head 15, at this time, the sponge cushion 151 is contacted with the upper end face of the roller 11, so that the ink can be coated onto the upper end face of the roller 11, along with the rotation of the roller 11, the long edges of the cams 3 on the roller shafts at the left side and the right side of the roller 11 are contacted with the vertical rods 31, so that the vertical rods 31 are jacked up, the coating head 15 is jacked up, the sponge cushion 151 is separated from the roller 11, meanwhile, the lower end of the cavity inside the coating head 15 is contacted with the plug plate 142, the ink is prevented from continuously flowing out to influence the printing work, the sealing rings are fixedly connected to the inner surface of the sleeve 152, and the ink can be prevented from flowing out from the gap between the sleeve 152 and the ink conveying pipe 14.

As an embodiment of the present invention, as shown in fig. 2 to 8, a plurality of rectangular grooves 5 are formed in the roller 11 near the annular outer surface at equal intervals, a plurality of micro holes 54 penetrating into the rectangular grooves 5 are formed in the annular outer surface of the roller 11 at equal intervals corresponding to each rectangular groove 5, a punch 53 is inserted into the micro holes 54, a cross plate 52 is arranged in the rectangular grooves 5 near the micro holes 54, the tail of the punch 53 is fixedly connected with one side of the cross plate 52 near the micro holes 54, a plurality of secondary springs 51 are fixedly connected with one side of the cross plate 52 far from the micro holes 54 at equal intervals, the other end of the secondary springs 51 is fixedly connected with one side of the rectangular grooves 5 far from the micro holes 54, the cleaning mechanism 4 comprises a collecting box 41, a connecting rod 42, a scraping plate 46 and a guide plate 47, the collecting box 41 is arranged at a position on the rear side of the roller 11, the left side and the right side of the collecting box 41 are fixedly connected with the left side and the right side of the roller frame 1 through the connecting rod 42, a feed inlet is formed above the front side of the collecting box 41, the scraping plate 46 is fixedly connected with the upper end of the scraping plate 46, the guide plate 46 is in a slope shape and is attached to the front surface of the annular outer surface of the roller 11 near the annular outer surface 47, and the front end of the guide plate 47 is fixedly connected with the front end of the annular outer surface of the roller 11.

During operation, based on the embodiment, when roller 11 rotates to the feed inlet position of collection box 41, the drift 53 is cast iron material, thereby the drift 53 in micropore 54 outwards removes the impurity that silts up in micropore 54 under the suction effect of magnet 45, consequently, pass through scraper 46, because scraper 46 is arc structure, and its front end and the laminating of roller 11 annular surface, thereby can be better with roller 11 surface and by the impurity scraping of the ejecting impurity of drift 53, guaranteed the clean degree of roller 11 annular surface, can accomplish the clearance to roller 11 without stopping, printing efficiency has been improved, after micropore 54 passes through magnet 45, because the afterbody of drift 53 is close to one side fixed connection of micropore 54 with diaphragm 52 respectively, the side level equidistance fixedly connected with a plurality of secondary spring 51 of diaphragm 52 is kept away from micropore 54, and the other end and one side fixed connection of rectangular channel 5 are kept away from micropore 54 with the secondary spring 51, pull the drift 53 back normal position, prepare for next time, the impurity that is scraped drops on inclined guide plate 47, when the impurity that falls on the guide plate 47, and is full to the inside of collection box 44 when the clearance groove 44 is followed, thereby the clearance groove 44 is followed to the clearance groove 44, the convenience is realized.

As an embodiment of the present invention, as shown in fig. 2, the ink tank 13 is provided with a stirring mechanism 2, the stirring mechanism 2 includes a primary pulley 21, a secondary pulley 22, and a stirring paddle 23, the stirring paddle 23 is located at a central position inside the ink tank 13, a left end of a rotating shaft of the stirring paddle 23 is rotatably connected with a left side surface inside the ink tank 13, a right end of the rotating shaft of the stirring paddle 23 penetrates to a right side of the ink tank 13 and is fixedly connected with the secondary pulley 22, the primary pulley 21 is fixedly connected with an end of an output shaft of the motor 12, and the primary pulley 21 and the secondary pulley 22 are rotatably connected through a belt.

During operation, based on the above embodiment, when the micro-holes 54 pass through the scraping plate 46, the long side of the cam 3 leaves the vertical rod 31, so that the first-stage spring 35 in the sleeve 32 is not extruded and begins to reset, thereby driving the coating head 15 to move downwards again, so that the plug plate 142 leaves the lower end of the cavity in the coating head 15, the ink flows onto the foam-rubber cushion 151 again, the ink is transferred onto the roller 11 when the roller 11 passes through the foam-rubber cushion 151, and the continuous printing processing of the fabric is completed in a reciprocating manner, and in this process, as the first-stage belt pulley 21 and the second-stage belt pulley 22 are connected through the belt in a rotating manner, the stirring paddle 23 in the ink tank 13 continuously stirs the ink in the ink tank 13 under the action of the motor 12, so that the ink is prevented from precipitating, and the printing quality is improved.

Working principle: the starting motor 12 drives the roller 11 to rotate anticlockwise, ink in the ink tank 13 enters the coating head 15 through the ink conveying pipe 14, the lower end of the ink conveying pipe 14 is connected in the sleeve 152 in a sliding mode, the annular surface of the lower end of the ink conveying pipe 14 is fixedly connected with four supporting rods 141 at equal intervals, the lower ends of the supporting rods 141 are respectively and fixedly connected with the upper end face of the plug plate 142, the center positions of the left side face and the right side face of the coating head 15 are fixedly connected with supporting posts 34, the other ends of the supporting posts 34 are respectively and fixedly connected with the sleeve 32, the inner bottom face of the sleeve 32 is fixedly connected with the primary spring 35, the upper end of the primary spring 35 is fixedly connected with the lower end face of the supporting rod 33, the sleeve 32 moves downwards under the elastic force of the primary spring 35 to drive the coating head 15 to move downwards, the ink above the plug plate 142 flows onto the foam-rubber cushion 151 at the position of the ink outlet at the lower end of the coating head 15, at the moment, the foam-rubber cushion 151 contacts with the upper end surface of the roller 11, so that the ink can be coated on the upper end surface of the roller 11, along with the rotation of the roller 11, the long sides of the cams 3 on the roller shafts at the left side and the right side of the roller 11 are contacted with the vertical rods 31, so that the vertical rods 31 are jacked upwards, the coating head 15 is jacked upwards, the foam-rubber cushion 151 is separated from the roller 11, the lower end of the inner cavity of the coating head 15 contacts with the plug plate 142, the ink is prevented from continuously flowing out to affect the printing work, the sealing ring is fixedly connected with the inner surface of the sleeve 152, the ink is prevented from flowing out from the gap between the sleeve 152 and the ink delivery tube 14, when the roller 11 rotates to the position of the feed inlet of the collecting box 41, the punch 53 is made of cast iron, the punch 53 in the micropore 54 moves outwards under the attraction of the magnet 45 to eject impurities deposited in the micropore 54, then the impurities pass through the scraping plate 46, the scraping plate 46 is of an arc-shaped structure, the front end of the scraping plate is attached to the annular outer surface of the roller 11, so that the surface of the roller 11 and the impurities ejected by the punch 53 can be scraped off better, the cleaning degree of the annular outer surface of the roller 11 is ensured, the cleaning of the roller 11 can be completed without stopping the machine, the printing efficiency is improved, after the micropore 54 passes through the magnet 45, as the tail part of the punch 53 is fixedly connected with one side of the transverse plate 52 close to the micropore 54 respectively, a plurality of secondary springs 51 are horizontally and equidistantly fixedly connected with one side of the transverse plate 52 far from the micropore 54, the other end of the secondary springs 51 is fixedly connected with one side of the rectangular groove 5 far from the micropore 54, the punch 53 is pulled back to the original position under the action of the secondary springs 51, in preparation for the next ejection of impurities, the scraped impurities fall on the inclined guide plate 47, slide along the guide plate 47 into the receiving groove 44 in the collecting box 41, when the receiving groove 44 is full, the impurities can be emptied by pulling the handle on the rear side of the receiving groove 44 to pull the handle out of the notch 43, the impurities are cleaned conveniently, when the micropores 54 pass through the scraping plate 46, the long side of the cam 3 leaves the vertical rod 31 to enable the primary spring 35 in the sleeve 32 to lose extrusion and start reset, so as to drive the coating head 15 to move downwards again, enable the plug plate 142 to leave the lower end of the cavity in the coating head 15, and the ink flows onto the foam cushion 151 again, and when the roller 11 passes through the foam cushion 151, the ink is transferred onto the roller 11 to reciprocate in such a way, continuous printing processing of the fabric is completed, in the process, because the primary belt pulley 21 and the secondary belt pulley 22 are connected in a rotating way, therefore, the stirring paddles 23 in the ink tank 13 continuously stir the ink in the ink tank 13 under the action of the motor 12, thereby avoiding the precipitation of the ink and improving the printing quality.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A printing press roll comprising a roll stand (1), characterized in that: the roller frame is characterized in that a roller (11) is arranged on the front side inside the roller frame (1), roller shafts on the left side and the right side of the roller (11) are respectively connected with left side plates and right side plates of the roller frame (1) in a rotating mode, a motor (12) is fixedly connected to the right side of the roller frame (1) through a frame, the roller shaft on the right side of the roller (11) penetrates through the right side plates of the roller frame (1) and is fixedly connected with an output shaft of the motor (12), and a cleaning mechanism (4) is arranged on the rear side of the roller (11);

the upper end face of the roller frame (1) is fixedly connected with an ink box (13), the lower end face of the ink box (13) is horizontally and equidistantly communicated with a plurality of ink conveying pipes (14), the lower ends of the ink conveying pipes (14) are communicated with a coating head (15), and the coating head (15) is positioned right above the roller (11);

a plurality of rectangular grooves (5) are formed in the roller (11) at equal intervals and close to the annular outer surface, and a plurality of micropores (54) penetrating into the rectangular grooves (5) are formed in the annular outer surface of the roller (11) at equal intervals and horizontally corresponding to each rectangular groove (5).

2. A printer roller according to claim 1, characterized in that: the upper end face of the coating head (15) is communicated with a plurality of sleeves (152) corresponding to the ink conveying pipes (14), the lower ends of the ink conveying pipes (14) are inserted into the sleeves (152) in a sliding mode, and sealing rings are fixedly connected to the inner surfaces of the sleeves (152).

3. A printer roller according to claim 2, characterized in that: the coating head (15) is of an inverted trapezoid cavity structure, a plug plate (142) is arranged at the lower end of an internal cavity of the coating head (15), and a sponge cushion (151) is fixedly connected to the position of an ink outlet at the lower end of the coating head (15);

four supporting rods (141) are fixedly connected to the annular surface of the lower end of the ink conveying pipe (14) at equal intervals, and the lower ends of the supporting rods (141) are fixedly connected with the upper end face of the plug plate (142) respectively.

4. A printer roller according to claim 3, characterized in that: the center positions of the left side surface and the right side surface of the coating head (15) are fixedly connected with supporting columns (34), the other ends of the supporting columns (34) are respectively and fixedly connected with sleeves (32), ejector rods (33) are inserted into the sleeves (32), and the upper ends of the ejector rods (33) are respectively and fixedly connected with the top plate of the roller frame (1);

the center of the lower end surface of the sleeve (32) is fixedly connected with a vertical rod (31), and the head of the vertical rod (31) is of a hemispherical structure.

5. A printer roller according to claim 4, wherein: the inner bottom surface fixedly connected with one-level spring (35) of sleeve (32), and one-level spring (35) upper end and ejector pin (33) lower terminal surface fixed connection, montant (31) below is equipped with cam (3) respectively, and cam (3) are with roller (11) left and right sides's roller fixed connection respectively.

6. A printer roller according to claim 1, characterized in that: a punch (53) is inserted into the micropore (54), a transverse plate (52) is arranged in the rectangular groove (5) close to the micropore (54), and the tail parts of the punch (53) are fixedly connected with one side of the transverse plate (52) close to the micropore (54) respectively;

a plurality of secondary springs (51) are fixedly connected to one side, far away from the micropores (54), of the transverse plate (52) at equal intervals, and one side, far away from the micropores (54), of the rectangular groove (5) is fixedly connected to the other end of each secondary spring (51).

7. A printer roller according to claim 1, characterized in that: the cleaning mechanism (4) comprises a collecting box (41), a connecting rod (42), a scraping plate (46) and a material guide plate (47);

the collecting box (41) is arranged at the lower position of the rear side of the roller (11), the left side surface and the right side surface of the collecting box (41) are fixedly connected with the left side plate and the right side plate of the roller frame (1) through connecting rods (42), a feed port is formed above the front side surface of the collecting box (41), the scraper (46) is fixedly connected to the upper end of the feed port, the scraper (46) is of an arc-shaped structure, and the front end of the scraper (46) is attached to the annular outer surface of the roller (11);

the material guide plate (47) is obliquely and fixedly connected to the lower end of the feeding port, and the front end of the material guide plate (47) is close to the annular outer surface of the roller (11).

8. A printer roller according to claim 7, wherein: a magnet (45) is arranged between the scraping plate (46) and the material guiding plate (47), the left end and the right end of the magnet (45) are fixedly connected with the left side wall and the right side wall of the feeding hole respectively, a notch (43) is formed in the lower half part of the rear side surface of the collecting box (41), and a material receiving groove (44) is inserted into the notch (43).

9. A printer roller according to claim 1, characterized in that: a stirring mechanism (2) is arranged in the ink box (13), and the stirring mechanism (2) comprises a primary belt wheel (21), a secondary belt wheel (22) and a stirring paddle (23);

the stirring paddle (23) is located at the center position inside the ink tank (13), the left end of a rotating shaft of the stirring paddle (23) is rotationally connected with the left side face inside the ink tank (13), the right end of the rotating shaft of the stirring paddle (23) penetrates through the right side of the ink tank (13) and is fixedly connected with the secondary belt wheel (22), the primary belt wheel (21) is fixedly connected with the end portion of an output shaft of the motor (12), and the primary belt wheel (21) is rotationally connected with the secondary belt wheel (22) through a belt.