CN115570886B

CN115570886B - Wrapping bag printing device

Info

Publication number: CN115570886B
Application number: CN202211442159.XA
Authority: CN
Inventors: 杨玉冰
Original assignee: Jiangsu Ouk Packaging Technology Co ltd
Current assignee: Jiangsu Ouk Packaging Technology Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-23
Anticipated expiration: 2042-11-17
Also published as: CN115570886A

Abstract

The invention relates to a packaging bag printing device, which relates to the relevant field of printing and comprises a machine body, wherein mounting plates are fixedly connected to the two sides of the top of the machine body, ink rollers are slidably arranged between the mounting plates on the two sides, an ink box is arranged at the bottom of the ink rollers, two pipe joints I are arranged at the bottom of the ink box, an anilox roller is slidably arranged on one side of the ink rollers, a printing plate roller is slidably arranged on one side of the anilox roller, which is far away from the ink rollers, an embossing roller is slidably arranged on one side of the printing plate roller, and regulating rollers are rotatably arranged on the upper side and the lower side of the printing plate roller, and can drive packaging bags to move.

Description

Wrapping bag printing device

Technical Field

The invention relates to the field of printing, in particular to a packaging bag printing device.

Background

The ink roller of printing machine, anilox roller need carry out the washing and the maintenance of printing ink to it after using, and then ensure printing quality and improve printing machine life-span, current printing machine is after using, need the manual work wash, and when winter, ambient temperature is low, printing ink solidification rate is fast, the manual work need spend more time of washing, and when changing the printing ink of different colours, to the printing ink washing difficulty in the ink horn, can cause the colour mixture of new printing ink, increased manufacturing cost.

Disclosure of Invention

The invention aims to provide a packaging bag printing device which solves the problems.

The technical aim of the invention is realized by the following technical scheme: the utility model provides a wrapping bag printing device, includes the organism, equal fixedly connected with mounting panel in organism top both sides slip between the mounting panel is equipped with the ink roller, the ink roller bottom is equipped with the ink horn, the ink horn bottom is equipped with two tube coupling first, the ink roller one side slip is equipped with the anilox roller, the anilox roller is kept away from ink roller one side slip is equipped with the printing roller, the printing plate roller is kept away from ink roller one side slip is equipped with the impression roller, the printing plate roller with the upper and lower both sides between the impression roller all rotate and are equipped with the regulating roll, the wrapping bag can drive the wrapping bag and remove, the wrapping bag passes between the printing plate roller with pass through between the impression roller the printing plate roller with the impression of impression roller prints, one side the mounting panel is kept away from roller one side is fixed and is equipped with the control panel, the ink roller the anilox roller the printing roller the impression roller is in on the same horizontal plane, the anilox roller downside is equipped with the cleaning box in the sliding is equipped with the cleaning box, both sides in the cleaning box all slide and are equipped with tube coupling second, both sides can respectively with the inner wall joint first, the tube coupling is then carried out to the ink horn.

Preferably, a first sliding cavity is formed in the mounting plate in a penetrating mode, a first sliding block, a third sliding block and a fourth sliding block are arranged in the first sliding cavity in a sliding mode, the ink roller is rotatably arranged on two sides between the first sliding blocks, a motor I is fixedly arranged on one side, far away from the ink roller, of the first sliding block, an output shaft of the motor I is fixedly connected with the ink roller, the printing roller is rotatably arranged on two sides between the third sliding blocks, a motor III is fixedly arranged on one side, far away from the printing roller, of the third sliding block, an output shaft of the motor III is fixedly connected with the printing roller, the embossing roller is rotatably arranged on two sides between the fourth sliding blocks, a motor IV is fixedly arranged on one side, far away from the embossing roller, of the fourth sliding block, and the output shaft of the motor IV is fixedly connected with the embossing roller.

Preferably, a fixed block fixed in the first sliding cavity is arranged between the first sliding block and the third sliding block, the anilox roller is rotatably arranged at two sides between the fixed blocks, a motor II is fixedly arranged on one side, away from the anilox roller, of the fixed block, an output shaft of the motor II is fixedly connected with the anilox roller, a second sliding block is slidably arranged on two sides of the fixed block, and a spring is fixedly connected between the second sliding block and the fixed block.

Preferably, a second sliding cavity opposite to the first sliding cavity is formed in the control panel in a penetrating mode, a sixth sliding block is arranged in the second sliding cavity in a sliding mode, the sixth sliding block is fixedly connected with the third sliding block, a fourth telescopic rod is fixedly installed in the second sliding cavity, the telescopic end of the fourth telescopic rod is in sliding connection with the bottom of the sixth sliding block, a fifth sliding block is arranged below the fixing block in a sliding mode, and the cleaning rollers are fixedly arranged on two sides between the fifth sliding blocks. The sliding device is characterized in that a sliding block seven which is opposite to the sliding block five is arranged in the sliding cavity II in a sliding manner, a sliding block eight is arranged on one side in the sliding cavity II in a sliding manner, a motor five is fixedly installed on the sliding block eight, an output shaft of the motor five is horizontally and fixedly connected with a screw rod I, the screw rod I is in threaded connection with the sliding block seven, a telescopic rod five is fixedly installed in the sliding cavity II, a telescopic end of the telescopic rod five is vertically upwards and fixedly connected with an inserting block, and the inserting block is arranged at the bottom of the sliding block seven in a sliding manner.

Preferably, the first telescopic rod is fixedly installed in the first sliding cavity, the first telescopic rod is located away from one side of the first motor, the telescopic end of the first telescopic rod is fixedly connected with the fourth sliding block, the fourth sliding block is close to the third sliding block, the second telescopic rod is fixedly installed on one side of the third sliding block, the first telescopic rod is far away from the third telescopic rod, the third telescopic rod is fixedly installed on one side of the first sliding cavity, and the third telescopic rod is fixedly connected with the first sliding block.

Preferably, the first sliding opening is formed in the top of the cleaning roller, the cleaning box is arranged in the first sliding opening in a sliding manner, an installation beam is fixedly arranged in the cleaning roller, a telescopic rod six is fixedly arranged at the top of the installation beam, a telescopic end of the telescopic rod six is fixedly connected with the bottom of the cleaning box, the second sliding opening is formed in two sides of the cleaning roller, a cleaning plate is arranged in the second sliding opening in a sliding manner, the cleaning plate can clean the surface of the printing plate roller, a telescopic rod seven is fixedly arranged on two sides of the installation beam, and a telescopic end of the telescopic rod seven is fixedly connected with the cleaning plate.

Preferably, a motor six is fixedly arranged on two sides in the cleaning box, a screw rod two is fixedly connected to an output shaft of the motor six, a threaded block is connected to the screw rod two in a threaded manner, and a pipe joint two is fixedly arranged at the top of the threaded block.

Preferably, the ink knives are fixedly connected to the two sides of the ink box, and the ink knives are positioned on the two sides of the ink box and close to the ink roller, so that excessive ink on the surface of the ink roller can be prevented from overflowing the ink box.

Preferably, the machine body is fixedly provided with a water tank, one side of the water tank is fixedly provided with a water pump, an inlet of the water pump is communicated with the water tank through a pipeline, and an outlet of the water pump is communicated with the second pipe joint through a pipeline.

Preferably, the machine body is provided with a controller which can control the whole packaging bag printing device

In summary, the invention has the following beneficial effects:

1. according to the ink box, the ink with different colors can be quickly replaced through the splicing of the first pipe joint and the second pipe joint, the inner wall of the ink box can be cleaned, the anilox roller can be primarily cleaned through the cleaning liquid adsorbed by the ink roller, the rollers can be timely cleaned and maintained after printing is finished, the service life of the printer is prolonged, and the printing quality of the next printing work is ensured.

2. According to the invention, the anilox roller can be directly washed through the pipe joint II, the ink in the concave lattice of the anilox roller is further cleaned, the cleaning effect is enhanced, and the phenomenon that the ink is coagulated and difficult to clean is prevented from occurring in the anilox roller.

The invention can adjust the printing pressure among the rollers by the movable grinding roller, the anilox roller and the embossing roller, thereby further enhancing the printing effect.

Drawings

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

FIG. 1 is a schematic perspective view of a first perspective view of an embodiment of the present invention;

FIG. 2 is a schematic view of a second perspective of an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a third perspective view according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A in which the present invention is implemented;

FIG. 5 is a schematic cross-sectional perspective view of an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a cross-section of an ink roller and a purge roller in an embodiment of the invention;

fig. 7 is a schematic perspective view of a cleaning roller in accordance with an embodiment of the present invention.

In the figure: 10. a body; 11. a mounting plate; 12. an inking roller; 13. an anilox roller; 14. a plate roller; 15. an embossing roller; 16. an adjusting roller; 17. a control board; 18. a water tank; 19. a water pump; 21. a first motor; 22. a second motor; 23. a third motor; 24. a fourth motor; 25. a sliding cavity I; 26. a first sliding block; 27. a second sliding block; 28. a spring; 29. a fixed block; 30. a sliding block III; 31. a sliding block IV; 32. a sliding block V; 33. a sliding cavity II; 34. a sliding block six; 35. a sliding block seven; 36. a first telescopic rod; 37. a second telescopic rod; 39. a telescopic rod III; 40. a telescopic rod IV; 42. a fifth telescopic rod; 43. an insert block; 44. a first lead screw; 45. a sliding block eight; 46. a fifth motor; 47. an ink cartridge; 48. an ink knife; 49. a cleaning roller; 50. sliding the first opening; 51. a cleaning box; 52. a second lead screw; 53. a second pipe interface; 54. a sixth motor; 55. cleaning the plate; 56. mounting a beam; 57. a telescopic rod seven; 58. a telescopic rod six; 59. a screw block; 60. a sliding opening II; 61. and a first pipe interface.

Detailed Description

1-7, a wrapping bag printing device, including organism 10, the equal fixedly connected with mounting panel 11 in organism 10 top both sides, both sides slip is equipped with ink roller 12 between the mounting panel 11, ink roller 12 bottom is equipped with ink horn 47, ink horn 47 bottom is equipped with two pipe joint one 61, ink roller 12 one side slip is equipped with anilox roller 13, anilox roller 13 keep away from ink roller 12 one side slip is equipped with printing plate roller 14, printing plate roller 14 keep away from ink roller 12 one side slip is equipped with impression roller 15, printing plate roller 14 with the upper and lower both sides between the impression roller 15 are all rotated and are equipped with regulating roller 16, regulating roller 16 can drive the wrapping bag and remove, the wrapping bag passes between printing plate roller 14 with the impression roller 15 and pass through printing plate roller 14 with the impression of impression roller 15 carries out the printing, one side mounting panel 11 is kept away from ink roller 12 one side is fixedly is equipped with control panel 17, anilox roller 13 anilox roller 14 the anilox roller 15 is in same horizontal plane, printing plate roller 13 is kept away from one side is equipped with impression roller 15, printing plate roller 13 is equipped with two sides are equipped with the smooth roller 49 respectively, both sides are equipped with two inner tube joint one side gap 51 can be washed to the inner wall two both sides 51 respectively, and the inner tube joint one side is cleaned 53.

The printing plate roller is characterized in that a first sliding cavity 25 is formed in the mounting plate 11 in a penetrating mode, a first sliding block 26, a third sliding block 30 and a fourth sliding block 31 are horizontally arranged in the first sliding cavity 25 in a sliding mode, the ink roller 12 is rotatably arranged on two sides between the first sliding blocks 26, a first motor 21 is fixedly arranged on one side, far away from the ink roller 12, of the first sliding block 26, an output shaft of the first motor 21 is fixedly connected with the ink roller 12, the printing plate roller 14 is rotatably arranged on two sides between the third sliding blocks 30, a third motor 23 is fixedly arranged on one side, far away from the printing plate roller 14, of the third sliding block 30, an output shaft of the third motor 23 is fixedly connected with the printing plate roller 14, the printing roller 15 is rotatably arranged on two sides between the fourth sliding blocks 31, a fourth motor 24 is fixedly arranged on one side, far away from the printing roller 15, and an output shaft of the fourth motor 24 is fixedly connected with the printing roller 15.

Advantageously, a fixed block 29 fixed in the first sliding cavity 25 is arranged between the first sliding block 26 and the third sliding block 30, the anilox roller 13 is rotatably arranged at two sides between the fixed blocks 29, a second motor 22 is fixedly arranged at one side of the fixed block 29 away from the anilox roller 13, an output shaft of the second motor 22 is fixedly connected with the anilox roller 13, a second sliding block 27 is slidably arranged at two sides of the fixed block 29, and a spring 28 is fixedly connected between the second sliding block 27 and the fixed block 29.

The control board 17 is internally provided with a second sliding cavity 33 which is opposite to the first sliding cavity 25 in a penetrating way, the second sliding cavity 33 is internally provided with a sixth sliding block 34 in a sliding way, the sixth sliding block 34 is fixedly connected with a third sliding block 30, a fourth telescopic rod 40 is fixedly arranged in the second sliding cavity 33, the telescopic end of the fourth telescopic rod 40 is in sliding connection with the bottom of the sixth sliding block 34, the lower side of the fixed block 29 is provided with a fifth sliding block 32 in a sliding way, and the cleaning roller 49 is fixedly arranged between the fifth sliding blocks 32 at two sides. The sliding block seven 35 which is opposite to the sliding block five 32 is arranged in the sliding cavity two 33 in a sliding mode, the sliding block eight 45 is arranged on one side in the sliding cavity two 33 in a sliding mode, the motor five 46 is fixedly installed on the sliding block eight 45, the first lead screw 44 is horizontally and fixedly connected with an output shaft of the motor five 46, the first lead screw 44 is in threaded connection with the sliding block seven 35, the telescopic rod five 42 is fixedly installed in the sliding cavity two 33, the telescopic end of the telescopic rod five 42 is vertically upwards and fixedly connected with the inserting block 43, and the inserting block 43 is arranged at the bottom of the sliding block seven 35 in a sliding mode.

Advantageously, a first telescopic rod 36 is fixedly installed in the first sliding cavity 25, the first telescopic rod 36 is located at a side far away from the first motor 21, a telescopic end of the first telescopic rod 36 is fixedly connected with a fourth sliding block 31, a second telescopic rod 37 is fixedly installed at a side, close to the third sliding block 30, of the fourth sliding block 31, a telescopic end of the second telescopic rod 37 is slidably connected with the third sliding block 30, a third telescopic rod 39 is fixedly installed at a side, far away from the first telescopic rod 36, of the first sliding cavity 25, and a telescopic end of the third telescopic rod 39 is fixedly connected with the first sliding block 26.

The cleaning roller 49 is characterized in that a first sliding opening 50 is formed in the top of the cleaning roller 49, the cleaning box 51 is arranged in the first sliding opening 50 in a sliding mode, a mounting beam 56 is fixedly arranged in the cleaning roller 49, a telescopic rod six 58 is fixedly arranged at the top of the mounting beam 56, the telescopic end of the telescopic rod six 58 is fixedly connected with the bottom of the cleaning box 51, a second sliding opening 60 is formed in two sides of the cleaning roller 49, a cleaning plate 55 is arranged in the second sliding opening 60 in a sliding mode, the cleaning plate 55 can clean the surface of the printing plate roller 14, a telescopic rod seven 57 is fixedly arranged on two sides of the mounting beam 56, and the telescopic end of the telescopic rod seven 57 is fixedly connected with the cleaning plate 55.

Advantageously, the six motors 54 are fixedly installed at two sides in the cleaning box 51, the second screw 52 is fixedly connected to the output shaft of the six motors 54, the second screw 52 is in threaded connection with the threaded block 59, and the second pipe joint 53 is fixedly installed at the top of the threaded block 59.

Advantageously, the ink knives 48 are fixedly connected to both sides of the ink cartridge 47, and the ink knives 48 are located on both sides of the ink cartridge 47 and close to the ink roller 12, so that excessive ink on the surface of the ink roller 12 can be prevented from overflowing the ink cartridge 47.

The water tank 18 is fixedly arranged on the machine body 10, a water pump 19 is fixedly arranged on one side of the water tank 18, an inlet of the water pump 19 is communicated with the water tank 18 through a pipeline, and an outlet of the water pump 19 is communicated with the pipe joint II 53 through a pipeline.

Advantageously, the machine body 10 is provided with a controller capable of controlling the entire package printing device.

The application method of the invention comprises the following steps:

the initial state is as follows: the first motor 21, the second motor 22, the third motor 23, the fourth motor 24, the fifth motor 46 and the sixth motor 54 are closed, the cleaning roller 49 is positioned right below the ink roller 12, and the two side pipe connectors 53 are respectively spliced with the first pipe connector 61.

When the printing is finished and the printing machine needs to be cleaned, the printing machine is mainly used for cleaning the ink roller 12 and the anilox roller 13, at the moment, the ink in the ink box 47 is emptied firstly, at the moment, the controller controls the water pump 19 to start, the water pump 19 conveys the cleaning liquid in the water tank 18 to the second pipe joint 53 through the first pipe joint 61, at the moment, the ink on the surface of the ink roller 12 and the inner wall of the ink box 47 can be cleaned, at the moment, the controller controls the first motor 21 to start, the first motor 21 drives the ink roller 12 to rotate, at the moment, the ink roller 12 can be primarily cleaned, at the moment, the controller controls the expansion rod III 39 to stretch, the expansion rod III 39 drives the sliding block I26 to move towards the side close to the anilox roller 13, at the moment, the gap between the anilox roller 13 and the ink roller 12 becomes small, the anilox roller 13 can absorb the cleaning liquid on the ink roller 12, the mixed liquid of the ink and the cleaning liquid can flow down along the anilox roller, the ink roller 12 can pre-clean the anilox roller 13, when the ink roller 12 finishes the preliminary cleaning, the controller controls the telescopic rod five 42 to shorten, the telescopic rod five 42 drives the sliding block seven 35 to descend, the splicing of the pipe joint two 53 and the pipe joint one 61 is further released, the controller controls the motor five 46 to start, the motor five 46 drives the screw rod one 44 to rotate, the screw rod one 44 drives the sliding block seven 35 to horizontally move through threaded connection, the cleaning roller 49 is driven to move from the lower part of the ink roller 12 to the lower part of the anilox roller 13, the controller controls the telescopic rod five 42 to extend, the telescopic rod five 42 drives the sliding block seven 35 to ascend, the controller controls the telescopic rod six 58 to extend, the telescopic rod six 58 drives the cleaning box 51 to ascend, a part of the outer circular surface of the anilox roller 13 enters the cleaning box 51, the controller controls the telescopic rod four 40 to shorten, the telescopic rod four 40 drives the sliding block six 34 to descend, and then drive sliding block three 30 to descend, and then drive printing plate roller 14 to descend, this moment the controller controls the extension of both sides telescopic link seven 57, the telescopic link seven 57 drives wash plate 55 outside and removes, this moment wash plate 55 tangent with the outer disc of printing plate roller 14, this moment the controller controls water pump 19 and starts, water pump 19 carries the cleaning solution in the water tank 18 to pipe joint two 53 and blowout through the pipeline, this moment the controller controls motor two 22 and starts, motor two 22 drives anilox roller 13 and rotates, this moment pipe joint two 53 can carry out further washing to anilox roller 13 surface, wash plate 55 can wash the outer disc of printing plate roller 14, and then make ink roller 12, anilox roller 13, printing plate roller 14 be in a clean state, increase printing machine life-span.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement it without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. Packaging bag printing device, including organism (10), its characterized in that: the utility model discloses a cleaning machine, including machine body (10), mounting panel (11) are all fixedly connected with to both sides at the top of machine body (10), both sides the upper and lower both sides between mounting panel (11) are all rotated and are equipped with ink roller (16), ink roller (12) bottom is equipped with ink horn (47), ink horn (47) bottom is equipped with two pipe joint one (61), ink roller (12) one side slip is equipped with anilox roller (13), anilox roller (13) keep away from ink roller (12) one side slip is equipped with printing plate roller (14), printing plate roller (14) keep away from ink roller (12) one side slip is equipped with impression roller (15), printing plate roller (14) with the upper and lower both sides between impression roller (15) all rotate and are equipped with regulating roller (16), regulating the wrapping bag can drive the removal of wrapping bag, and the wrapping bag passes between printing plate roller (14) with impression roller (15) and pass through printing plate roller (14) impression roller (15), one side mounting panel (11) is kept away from ink roller (12) one side of ink roller (12) is fixed and printing plate roller (12), printing plate roller (13) one side is kept away from, printing roller (13) one side is equipped with control panel (17), printing roller (49) is equipped with on the same level (49) is in the same on the impression roller (15) cleaning roller (49), the two sides in the cleaning box (51) are respectively provided with a second pipe joint (53) in a sliding manner, and the second pipe joints (53) on the two sides can be respectively spliced with the first pipe joints (61) on the two sides so as to clean the inner wall of the ink box (47);

the printing plate printing device comprises a mounting plate (11), wherein a first sliding cavity (25) is formed in the mounting plate (11) in a penetrating manner, a first sliding block (26), a third sliding block (30) and a fourth sliding block (31) are horizontally arranged in the first sliding cavity (25), the ink roller (12) is rotatably arranged at two sides between the first sliding block (26), a first motor (21) is fixedly arranged at one side, far away from the ink roller (12), of the first sliding block (26), an output shaft of the first motor (21) is fixedly connected with the ink roller (12), the printing plate roller (14) is rotatably arranged at two sides between the third sliding block (30), a third motor (23) is fixedly arranged at one side, far away from the printing plate roller (14), of the third motor (23) is fixedly connected with the printing plate roller (14), the printing roller (15) is rotatably arranged at two sides between the fourth sliding block (31), a fourth motor (24) is fixedly arranged at one side, far away from the printing roller (15), and the fourth motor (24) is fixedly connected with the printing roller (15);

a fixed block (29) fixed in the first sliding cavity (25) is arranged between the first sliding block (26) and the third sliding block (30), the anilox roller (13) is rotatably arranged between the fixed blocks (29) at two sides, a motor II (22) is fixedly arranged at one side, far away from the anilox roller (13), of the fixed block (29), an output shaft of the motor II (22) is fixedly connected with the anilox roller (13), a sliding block II (27) is slidably arranged at two sides of the fixed block (29), and a spring (28) is fixedly connected between the sliding block II (27) and the fixed block (29);

the control board (17) is internally provided with a sliding cavity II (33) which is opposite to the sliding cavity I (25) in a penetrating way, the sliding cavity II (33) is internally provided with a sliding block III (34), the sliding block III (34) is fixedly connected with a sliding block III (30), a telescopic rod IV (40) is fixedly installed in the sliding cavity II (33), the telescopic end of the telescopic rod IV (40) is in sliding connection with the bottom of the sliding block VI (34), the lower side of the fixed block (29) is slidingly provided with a sliding block V (32), the cleaning roller (49) is fixedly arranged at two sides between the sliding block V (32), the sliding cavity II (33) is internally provided with a sliding block V (35) which is opposite to the sliding block V (32), one side of the sliding cavity II (33) is slidingly provided with a sliding block V (45), a motor V (46) is fixedly installed on the sliding block V (45), an output shaft of the motor V (46) is horizontally and fixedly connected with a first (44), the cleaning roller (49) is fixedly arranged at two sides between the sliding block V (32) and the sliding block V (32), the sliding block V (35) is fixedly connected with a screw rod V (42), the inserting block (43) is arranged at the bottom of the sliding block seven (35) in a sliding manner;

a telescopic rod I (36) is fixedly arranged in the sliding cavity I (25), the telescopic rod I (36) is positioned at one side far away from the motor I (21), the telescopic end of the telescopic rod I (36) is fixedly connected with the sliding block IV (31), a telescopic rod II (37) is fixedly arranged at one side of the sliding block IV (31) close to the sliding block III (30), the telescopic end of the telescopic rod II (37) is in sliding connection with the sliding block III (30), a telescopic rod III (39) is fixedly arranged at one side far away from the telescopic rod I (36) in the sliding cavity I (25), and the telescopic end of the telescopic rod III (39) is fixedly connected with the sliding block I (26);

the cleaning device comprises a cleaning roller (49), wherein a first sliding opening (50) is formed in the top of the cleaning roller (49), a cleaning box (51) is arranged in the first sliding opening (50) in a sliding mode, a mounting beam (56) is fixedly arranged in the cleaning roller (49), a telescopic rod six (58) is fixedly arranged at the top of the mounting beam (56), the telescopic end of the telescopic rod six (58) is fixedly connected with the bottom of the cleaning box (51), a second sliding opening (60) is formed in two sides of the cleaning roller (49), a cleaning plate (55) is arranged in the second sliding opening (60) in a sliding mode, the surface of the printing plate roller (14) can be cleaned by the cleaning plate (55), a telescopic rod seven (57) is fixedly arranged on two sides of the mounting beam (56), and the telescopic end of the telescopic rod seven (57) is fixedly connected with the cleaning plate (55);

a motor six (54) is fixedly arranged on two sides in the cleaning box (51), a screw rod two (52) is fixedly connected to an output shaft of the motor six (54), a threaded block (59) is connected to the screw rod two (52) in a threaded manner, and the pipe joint two (53) is fixedly arranged at the top of the threaded block (59);

the water tank (18) is fixedly arranged on the machine body (10), a water pump (19) is fixedly arranged on one side of the water tank (18), an inlet of the water pump (19) is communicated with the water tank (18) through a pipeline, and an outlet of the water pump (19) is communicated with the pipe joint II (53) through a pipeline.

2. A package printing apparatus as claimed in claim 1, wherein: the ink box is characterized in that ink knives (48) are fixedly connected to two sides of the ink box (47), and the ink knives (48) are located on two sides of the ink box (47) and are close to the ink roller (12).

3. A package printing apparatus as claimed in claim 1, wherein: the machine body (10) is provided with a controller, and the controller can control the whole packaging bag printing device.