CN116787911A

CN116787911A - Diffusion barrier printing machine

Info

Publication number: CN116787911A
Application number: CN202211558121.9A
Authority: CN
Inventors: 翁国荣
Original assignee: Hangzhou Xiaoshan Haifeng Printing Co ltd
Current assignee: Hangzhou Xiaoshan Haifeng Printing Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-09-22

Abstract

The application discloses a diffusion film printer, which comprises a workbench, a moving device, a coating device and an ink cleaning assembly, wherein the workbench is connected with the moving device; the mobile device is arranged on the workbench, the coating device is arranged on the mobile device, and the mobile device drives the coating device to coat the diffusion film; the coating device comprises a supporting frame and a screen plate, wherein the screen plate is installed on the supporting frame; the ink cleaning assembly comprises a cleaning scraper and an ink collecting bin; the cleaning scraper is arranged on the supporting frame in a sliding manner, and is contacted with the screen plate; the ink collecting bin is arranged on the supporting frame, and the ink collecting bin can collect ink on the screen plate. The application can be convenient for cleaning the residual ink on the screen plate.

Description

Diffusion barrier printing machine

Technical Field

The application relates to the technical field of printers, in particular to a diffusion film printer.

Background

The diffusion film printing is to print a shading layer on the diffusion film frame through screen printing, so that when the subsequent diffusion film forms a backlight module, light rays strike the diffusion film to enable the light rays to form a uniformly distributed area light source by a point light source or a linear light source, and the shading layer positioned on the frame plays a role in reducing the light rays from diffusing to the outside.

In the related art, the diffusion film printing generally needs to perform plate making firstly, photoresist is smeared on a screen plate during plate making, a film negative is prevented from being exposed on an exposure machine, and the screen plate is placed above the film negative for exposure operation. After the plate making is completed, the screen plate is mounted on a printer, the diffusion film is positioned below the screen plate, and the ink is smeared on the screen plate and scraped, so that a pattern can be printed on the diffusion film.

Referring to fig. 1, a diffusion film printer in the related art includes a table 1, a moving device 2, a coating device 3, and a cutting assembly 5. The moving device 2 is arranged on the workbench 1, the coating device 3 is arranged on the moving device 2, and the moving device 2 can drive the coating device 3 to move so as to coat the diffusion film. The cutting assembly 5 is arranged on the workbench 1, and the cutting assembly 5 can cut the diffusion film, so that the diffusion film after coating can be collected conveniently.

However, when the coating device of the diffusion film printer of the related art moves left and right on the screen plate to perform coating, the ink on the side is not used, and the residual ink is naturally dried and gradually hardened, so that the ink is difficult to clean.

Disclosure of Invention

In order to facilitate cleaning of residual ink on the screen, the application provides a diffusion film printer.

The application provides a diffusion film printer, which adopts the following technical scheme:

a diffusion film printer comprises a workbench, a moving device, a coating device and an ink cleaning assembly; the mobile device is arranged on the workbench, the coating device is arranged on the mobile device, and the mobile device drives the coating device to coat the diffusion film;

the coating device comprises a supporting frame and a screen plate, wherein the screen plate is installed on the supporting frame;

the ink cleaning assembly comprises a cleaning scraper and an ink collecting bin; the cleaning scraper is arranged on the supporting frame in a sliding manner, and is contacted with the screen plate; the ink collecting bin is arranged on the supporting frame, and the ink collecting bin can collect ink on the screen plate.

By adopting the technical scheme, the moving device can drive the coating device to move back and forth, so that coating printing can be performed on the diffusion film; the cleaning scraper can slide on the support frame, so that residual ink on the screen plate can be scraped into the ink collecting bin for collection, the residual ink on the screen plate can be cleaned conveniently, and the screen plate can be reused conveniently.

Optionally, the diffusion film printer further comprises a cutting assembly, the cutting assembly comprising:

the cutting chamber is arranged on the workbench;

the sliding block is arranged on the cutting chamber in a sliding mode, the sliding direction of the sliding block is the same as that of the cleaning scraper, the sliding block is connected with a cutting knife, and the sliding block can enable the cutting knife to cut the diffusion film;

the first driving source is arranged on the sliding block and drives the sliding block to slide;

the second driving source is arranged on the sliding block, and the output end of the second driving source can be inserted into the cleaning scraper.

By adopting the technical scheme, when the first driving source is started, the sliding block can slide on the cutting chamber, and the sliding block is connected with the cutting knife, so that the sliding block can drive the cutting knife to cut the diffusion film, and the diffusion film can be conveniently collected after printing; when the second driving source is started, the output end of the second driving source is inserted into the cleaning scraper, and the cleaning scraper can be driven to move along with the sliding block due to the fact that the second driving source is arranged on the sliding block in the society, so that residual ink on the screen plate can be cleaned conveniently; when the output end of the second driving source is separated from the cleaning blade, the cleaning blade stops cleaning, and the cutting operation can be continued.

Optionally, the cutting assembly further includes a rack, the rack is disposed on the cutting chamber, and a length direction of the rack is the same as a sliding direction of the cleaning scraper;

the output end of the first driving source is connected with a gear, and the gear is meshed with the rack.

By adopting the technical scheme, when the output end of the first driving source drives the gear to rotate, the sliding block can slide due to the meshing of the gear and the rack; and the length direction of the rack is the same as the sliding direction of the cleaning scraper, so that the moving direction of the cleaning scraper is the same as the moving direction of the sliding block.

Optionally, the coating device comprises a scraper substrate, a scraper, an inkjet substrate and a spray head;

the scraper is arranged on the scraper substrate and is contacted with the screen plate;

the spray head is communicated with the ink-jet matrix, and faces the screen plate; the ink jet substrates are arranged in two, the scraper substrate is located between the two ink jet substrates, and the ink jet substrates and the scraper substrate are arranged side by side.

By adopting the technical scheme, after the scraper substrate of the diffusion film printer in the related technology is printed, the scraper substrate needs to be reset to print again; the scraper substrate is positioned between two ink-jet substrates, when the scraper moves, one of the ink-jet substrates is subjected to ink-jet by the nozzle, and when the scraper moves in the opposite direction, the other ink-jet substrate is subjected to ink-jet by the nozzle; the scraper substrate can be coated and printed without resetting, and the working efficiency can be improved.

Optionally, the coating device further comprises a third driving source, wherein the interior of the scraper substrate is hollow, and the third driving source is arranged in the scraper substrate;

the scraper is hinged with the scraper substrate, the output end of the third driving source is hinged with the scraper, and the third driving source can change the angle of the scraper relative to the screen plate.

By adopting the technical scheme, as the scraper is hinged with the scraper substrate, when the output end of the third driving source enables the scraper to move, the angle of the scraper relative to the screen plate can be changed; the scraper substrate can print when in reciprocating movement, the angle of the scraper can be adjusted timely, and the printing quality can be improved.

Optionally, the ink cleaning assembly further comprises a delivery source and an ink supply bin;

the ink supply bin is arranged on the moving device, the ink supply bin is communicated with the ink collecting bin, and the ink supply bin is communicated with the ink jet substrate; the conveying source is arranged on the moving device, and the conveying source can convey the ink in the ink collecting bin into the ink supplying bin.

Through adopting above-mentioned technical scheme, in the clearance scraper was collected ink to album ink storehouse, the printing ink that the conveying source was collected in with album ink storehouse was carried to the ink feed storehouse, and the ink feed storehouse can carry the printing ink of collecting again to in the inkjet matrix to can carry out recycle with remaining printing ink, reduce the wasting of resources.

Optionally, the diffusion film printer further comprises a sorting assembly comprising:

the conveyor belt is arranged on the workbench, and the cut diffusion film is transported to the conveyor belt;

and the detection piece can detect the image of the diffusion film on the conveyor belt, and is electrically connected with the conveyor belt.

By adopting the technical scheme, the diffusion film printer is inevitably free from the quality problem of printing when printing, and the detection piece detects the printing image of the diffusion film, so that the printing quality of the diffusion film is judged according to the printing image, and the diffusion film is sorted according to the judgment result, so that good diffusion films and defective diffusion films are distinguished.

Optionally, the detecting piece comprises a detecting bracket, a camera and a processor; the detection support is arranged on the workbench, the camera and the processor are arranged on the detection support, the camera can shoot a diffusion film image on the conveyor belt and transmit the image back to the processor to be compared with a standard image, and the conveying direction of the conveyor belt is controlled according to the identification result.

By adopting the technical scheme, the detection bracket can provide supporting force for the camera and the processor; the camera shoots an image of the diffusion film, the image is transmitted back to the processor and is compared with a standard image, and if the identification result is qualified, the conveyer belt conveys the diffusion film in one direction; if the identification result is unqualified, the conveyor belt is enabled to transport the diffusion film to the other direction, so that good products and defective diffusion films can be distinguished, classified collection can be achieved, and post-treatment is facilitated.

Optionally, the diffusion film printer further comprises a collection assembly, wherein the collection assembly comprises a first collection bin and a second collection bin; the first collecting bin and the second collecting bin are respectively located at two ends of the length direction of the conveyor belt, the first collecting bin is used for collecting qualified diffusion films, and the second collecting bin is used for collecting unqualified diffusion films.

Through adopting above-mentioned technical scheme, in the good product diffusion barrier was collected to first collection storehouse, inferior product diffusion barrier was collected to the second and is collected the storehouse, and the staff of being convenient for carries out classification to the diffusion barrier.

Optionally, be provided with the UV solidification subassembly between first collection storehouse and the conveyer belt, be provided with the air heater in the first collection storehouse.

By adopting the technical scheme, the UV curing device can cure the printed image of the good diffusion film, so that the image on the surface of the diffusion film is firmer; the hot air can heat the diffusion film in the first collecting bin, so that the drying speed of the ink can be accelerated, and the stability of the surface image of the diffusion film is further improved.

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

1. the cleaning scraper can slide on the supporting frame, so that the residual ink on the screen plate can be scraped into the ink collecting bin for collection, and the residual ink on the screen plate is reduced;

2. the sliding block can slide on the cutting chamber so as to cut the diffusion film, and meanwhile, the sliding block can also drive the cleaning scraper to move together, so that the cleaning operation and the cutting operation can be realized;

3. the ink-jet matrix can be used for coating the screen plate during reciprocating movement, the angle of the scraper can be changed during reciprocating movement, namely, the scraper can be used for printing during reciprocating movement, and the printing efficiency is improved.

Drawings

FIG. 1 is an overall schematic diagram of a diffusion film printer of the related art;

FIG. 2 is an overall schematic of a diffusion barrier printer according to an embodiment of the present application;

FIG. 3 is an exploded schematic view showing a moving device and a coating device according to an embodiment of the present application;

FIG. 4 is an exploded view of an embodiment of the present application showing a squeegee assembly and an inkjet assembly;

FIG. 5 is a partial schematic view of a cutting assembly according to an embodiment of the present application;

fig. 6 is a schematic diagram showing a sorting assembly, a UV curing assembly, and a collection assembly according to an embodiment of the present application.

Reference numerals illustrate: 1. a work table; 11. a frame; 12. an adsorption plate; 13. a conveying roller; 14. a first receiving frame; 15. a second receiving frame; 2. a mobile device; 21. a first Z-axis movement assembly; 211. a first support frame; 22. an X-axis moving assembly; 221. a second support frame; 23. a second Z-axis movement assembly; 231. a third support frame; 232. a fourth driving source; 233. a connecting rod; 3. a coating device; 31. a screen assembly; 311. a support frame; 312. a screen plate; 313. an abutment; 32. a squeegee assembly; 321. a squeegee base; 322. a scraper; 323. a third driving source; 33. an inkjet assembly; 331. an inkjet substrate; 332. a spray head; 4. an ink cleaning assembly; 41. cleaning a scraper; 42. an ink collecting bin; 43. a delivery source; 44. an ink delivery tube; 45. an ink supply bin; 5. a cutting assembly; 51. a cutting chamber; 511. a through groove; 52. a slide block; 53. a rack; 54. a first driving source; 55. a second driving source; 6. a sorting assembly; 61. a conveyor belt; 62. a detecting member; 621. detecting a bracket; 622. a camera; 7. a UV curing assembly; 8. a collection assembly; 81. a first collection bin; 82. a second collection bin; 83. an air heater.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses a diffusion film printer.

Referring to fig. 2, the table 1 includes a frame 11, an adsorption plate 12, a conveying roller 13, a first receiving frame 14, and a second receiving frame 15. The first supporting frame 14 and the second supporting frame 15 are fixedly connected with the frame 11, and the first supporting frame 14 and the second supporting frame 15 are arranged at intervals. The conveying rollers 13 are rotatably arranged on the first bearing frame 14, two conveying rollers 13 are arranged at intervals, the diffusion film is positioned between the two conveying rollers 13, and the conveying rollers 13 can drive the diffusion film to transport when rotating. The adsorption plate 12 is a rectangular plate, the adsorption plate 12 is fixedly connected with the top wall of the frame 11, the adsorption plate 12 is positioned between the first bearing frame 14 and the second bearing frame 15, a plurality of adsorption holes are formed in the adsorption plate 12, an air pump is arranged in the adsorption plate 12, negative pressure is formed by air pump suction, and when the diffusion film is positioned on the adsorption plate 12, the adsorption plate 12 can adsorb and fix the diffusion film, so that the stability during printing is improved.

Referring to fig. 2, the moving device 2 includes a first Z-axis moving assembly 21 and an X-axis moving assembly 22. The first Z-axis moving assembly 21 includes a first supporting frame 211, and the first supporting frame 211 is fixedly connected to the frame 11. The X-axis moving assembly 22 includes a second supporting frame 221, and the second supporting frame 221 is slidably disposed on the second supporting frame 221, so that the first Z-axis moving assembly 21 can drive the second supporting frame 221 to move along the Z-axis direction.

Referring to fig. 3, the moving device 2 further includes a second Z-axis moving assembly 23, and the second Z-axis moving assembly 23 includes a third supporting frame 231, a fourth driving source 232, and a connection rod 233. The third supporting frame 231 is slidably disposed on the second supporting frame 221, so that the X-axis moving assembly 22 drives the third supporting frame 231 to move along the X-axis. In the present embodiment, the fourth driving source 232 is a cylinder, and in other embodiments of the present application, the fourth driving source 232 may be an electric cylinder or an electric push rod. The fourth driving source 232 is fixedly connected to the third supporting frame 231, the output end of the fourth driving source 232 is fixedly connected to the connecting rod 233, and the connecting rod 233 penetrates through the third supporting frame 231, so that the fourth driving source 232 can drive the connecting rod 233 to move along the Z-axis direction.

Referring to fig. 3, the coating apparatus 3 includes a screen assembly 31, and the screen assembly 31 includes a support frame 311, a screen 312, and an abutment 313. The supporting frame 311 is a rectangular frame structure, and the supporting frame 311 is fixedly connected with the first bearing frame 14 and the second bearing frame 15 respectively. The screen plate 312 is a rectangular plate, the supporting frame 311 is provided with a sliding groove, and the screen plate 312 is in sliding fit with the sliding groove of the supporting frame 311, so that different screen plates 312 can be replaced to print different patterns. In the present embodiment, the abutment 313 is a cylinder, and in other embodiments of the present application, the abutment 313 may be an electric push rod or an electric cylinder. The abutting piece 313 is fixedly connected to the supporting frame 311, the output end of the abutting piece 313 penetrates through the supporting frame 311, and the output end of the abutting piece 313 can abut against the screen plate 312 under pressure, so that limiting and fixing are performed after the screen plate 312 is mounted on the supporting frame 311.

Referring to fig. 3 and 4, the coating apparatus 3 further includes a blade assembly 32, and the blade assembly 32 includes a blade base 321, a blade 322, and a first driving source 54. The scraper base 321 is a rectangular housing with a hollow interior, the scraper base 321 is fixedly connected with the connecting rod 233, and the length direction of the scraper base 321 is perpendicular to the transport direction of the diffusion membrane. The scraper 322 is a rectangular thin sheet, the scraper 322 is hinged with the scraper base 321, and the bottom end of the scraper 322 can be contacted with the screen 312. In the present embodiment, the first driving source 54 is a cylinder, and in other embodiments of the present application, the first driving source 54 may be an electric push rod or an electric cylinder. The first driving source 54 is hinged to the inner wall of the scraper base 321, and the output end of the first driving source 54 is hinged to the upper end of the scraper 322. When the output of the first drive source 54 drives the blade 322, the blade 322 is allowed to change the angle of contact with respect to the screen 312.

Referring to fig. 3 and 4, the coating apparatus 3 further includes an inkjet assembly 33, and the inkjet assembly 33 includes an inkjet substrate 331 and a nozzle 332. The ink-jet matrix 331 is a rectangular cavity, and the ink-jet matrix 331 is fixedly connected with the connecting rod 233. The head 332 communicates with the bottom wall of the inkjet substrate 331, so that ink can be ejected onto the surface of the screen 312.

Referring to fig. 3, the diffusion film printer further includes an ink cleaning assembly 4, and the ink cleaning assembly 4 includes a cleaning blade 41 and an ink collecting hopper 42. The length direction of the cleaning blade 41 is parallel to the screen 312, and the length direction of the cleaning blade 41 is perpendicular to the length direction of the blade base 321. The ink collecting bin 42 is a rectangular cavity, the ink collecting bin 42 is fixedly connected with one end, close to the first supporting frame 211, of the rectangular frame, the ink collecting bin 42 is abutted against the screen plate 312, through holes are formed in one side, close to the screen plate 312, of the ink collecting bin 42, and ink located on the screen plate 312 can enter the ink collecting bin 42 from the through holes to be collected.

Referring to fig. 3, the ink cleaning assembly 4 includes a feed source 43, an ink feed tube 44, and an ink supply reservoir 45. The ink supply bin 45 is a rectangular cavity, the ink supply bin 45 is fixedly connected with the top wall of the first support frame 211, and the ink supply bin 45 is externally connected with a pipeline for supplying ink. In this embodiment, the conveying source 43 is a pump, and the conveying source 43 is fixedly connected to the first supporting frame 211. The ink-feed tubes 44 are provided in plural, one ink-feed tube 44 connecting the ink-collecting chamber 42 to the feed source 43, and the other ink-feed tube 44 connecting the feed source 43 to the ink-feed chamber 45. The ink supply bin 45 is also communicated with the ink-jet matrix 331 (not shown in the figure) by the ink-conveying pipe 44, and the conveying source 43 is also arranged in the ink supply bin 45, so that the ink in the ink supply bin 45 is supplied into the ink-jet matrix 331, and recycling of the recovered ink is realized.

Referring to fig. 5, the cutting assembly 5 includes a cutting chamber 51 and a slider 52. The cutting chamber 51 is fixedly connected with the frame 11, and the diffusion film is conveyed into the cutting chamber 51. The cutting chamber 51 has a through groove 511 formed at the top thereof, the longitudinal direction of the through groove 511 is the same as the longitudinal direction of the cutting chamber 51, and the longitudinal direction of the through groove 511 is the same as the sliding direction of the cleaning blade 41. The slider 52 is slidably disposed on the through groove 511, and a cutting blade (not shown) is fixedly connected to the bottom of the slider 52, and is capable of cutting the diffusion film when the slider 52 slides along the length direction of the through groove 511.

Referring to fig. 5, the cutter assembly 5 further includes a rack 53 and a first driving source 54. The rack 53 is fixedly connected to the top wall of the cutting chamber 51, and the length direction of the rack 53 is the same as the length direction of the through groove 511. In this embodiment, the first driving source 54 is a motor, and the output end of the second driving source 55 is fixedly connected with a gear, and the gear is meshed with the rack 53. When the first driving source 54 drives the gear to rotate, the slider 52 can be driven to slide along the length direction of the through groove 511, and the slider 52 drives the cutting knife to cut the diffusion film.

Referring to fig. 5, the cutting assembly 5 further includes a second driving source 55, in this embodiment, the second driving source 55 is a cylinder, and in other embodiments of the present application, the second driving source 55 may also be an electric cylinder or an electric push rod, and the second driving source 55 is fixedly connected with the slider 52. A through groove is formed in a side of the support frame 311 adjacent to the second driving source 55, and a length direction of the through groove is identical to a length direction of the through groove 511. The cleaning scraper 41 is provided with a groove on one side close to the cutting chamber 51, and the output end of the second driving source 55 penetrates through the through groove and is inserted into the groove of the cleaning scraper 41, so that the cleaning scraper 41 can be driven to move together when the second driving source 55 moves along with the sliding block 52.

Referring to fig. 6, the diffusion film printer further includes a sorting assembly 6, the sorting assembly 6 includes a conveyor belt 61, the conveyor belt 61 is disposed on the frame 11, a conveying direction of the conveyor belt 61 is parallel to a top wall of the frame 11, and a conveying direction of the conveyor belt 61 is perpendicular to a conveying direction of the diffusion film.

Referring to fig. 6, the sorter assembly 6 further includes a detection piece 62, the detection piece 62 including a detection bracket 621 and a camera 622. The detection bracket 621 is fixedly connected with the top wall of the frame 11, the camera 622 is fixedly connected with the detection bracket 621, and the camera 622 can shoot the diffusion film image on the conveyor belt 61. The camera 622 transmits the image back to the processor and compares it with a standard printed image, and if it is acceptable, controls the belt 61 to rotate forward, and if it is not acceptable, controls the belt 61 to rotate backward.

Referring to fig. 6, the diffusion film printer further includes a UV curing assembly 7, in this embodiment, the UV curing assembly 7 is a conventional technology, the UV curing assembly 7 is fixedly connected with the top wall of the frame 11, the UV curing assembly 7 is disposed at one end of the conveyor belt 61, when the conveyor belt 61 rotates forward, the diffusion film can be transported into the UV curing assembly 7, and the UV curing assembly 7 cures the image on the diffusion film.

Referring to fig. 6, the diffusion film printer further comprises a collecting assembly 8, the collecting assembly 8 comprising a first collecting bin 81 and a second collecting bin 82. The first collecting bin 81 and the second collecting bin 82 are fixedly connected with the frame 11, and the first collecting bin 81 and the second collecting bin 82 are respectively located at two ends of the conveying belt 61, wherein the first collecting bin 81 is located at one end of the conveying belt 61 close to the UV curing assembly 7. When the conveyor belt 61 is rotated in the forward direction, the conveyor belt 61 transports the diffusion film to the UV curing assembly 7 and into the first collection bin 81; when the conveyor belt 61 is reversed, the diffusion membrane can be transported into the second collection bin 82.

Referring to fig. 6, the collecting assembly 8 further includes an air heater 83, the air heater 83 is fixedly connected in the first collecting bin 81, and the air heater 83 can blow hot air into the first collecting bin 81, so that ink on the diffusion film can be dried, and stability of an image on the diffusion film is improved.

The implementation principle of the diffusion film printer provided by the embodiment of the application is as follows: the diffusion film is transported to the adsorption plate 12 by the transport roller 13, and the doctor blade 322 scrapes the ink, so that the ink is printed on the diffusion film through the screen 312, and since the doctor blade base 321 is located between the two ink jet bases 331 and the doctor blade 322 can change the angle, the doctor blade 322 can scrape the ink in both the moving and resetting processes. When the slider 52 slides along the through groove 511, the diffusion film can be cut, and when the output end of the second driving source 55 is inserted into the cleaning blade 41, the cleaning blade 41 can be driven to scrape residual ink into the ink collecting bin 42 for collection, and the residual ink is conveyed into the ink supplying bin 45 for recycling through the conveying source 43. The cut diffusion film falls onto the conveyor belt 61, and the detecting member 62 detects the image on the diffusion film, and conveys the unqualified diffusion film into the second collecting bin 82; the conveyor 61 conveys the acceptable diffusion film into the UV curing assembly 7 and then into a first collection bin 81 for baking and collection.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A diffusion film printer, characterized by: comprises a workbench (1), a moving device (2), a coating device (3) and an ink cleaning assembly (4); the mobile device (2) is arranged on the workbench (1), the coating device (3) is arranged on the mobile device (2), and the mobile device (2) drives the coating device (3) to coat the diffusion film;

the coating device (3) comprises a supporting frame (311) and a screen plate (312), wherein the screen plate (312) is arranged on the supporting frame (311);

the ink cleaning assembly (4) comprises a cleaning scraper (41) and an ink collecting bin (42); the cleaning scraper (41) is arranged on the supporting frame (311) in a sliding manner, and the cleaning scraper (41) is contacted with the screen plate (312); the ink collecting bin (42) is arranged on the supporting frame (311), and the ink collecting bin (42) can collect ink on the screen plate (312).

2. A diffusion film printer according to claim 1, wherein: the diffusion film printer further comprises a cutting assembly (5), the cutting assembly (5) comprising:

a cutting chamber (51), wherein the cutting chamber (51) is arranged on the workbench (1);

the sliding block (52) is arranged on the cutting chamber (51) in a sliding mode, the sliding direction of the sliding block (52) is the same as that of the cleaning scraper (41), the sliding block (52) is connected with a cutting knife, and the sliding block (52) can enable the cutting knife to cut a diffusion film;

a first driving source (54), wherein the first driving source (54) is arranged on the sliding block (52), and the first driving source (54) drives the sliding block (52) to slide;

the second driving source (55), the second driving source (55) set up in on the slider (52), the output of second driving source (55) can peg graft in clearance scraper (41).

3. A diffusion film printer according to claim 2, wherein: the cutting assembly (5) further comprises a rack (53), the rack (53) is arranged on the cutting chamber (51), and the length direction of the rack (53) is the same as the sliding direction of the cleaning scraper (41);

the output end of the first driving source (54) is connected with a gear, and the gear is meshed with the rack (53).

4. A diffusion film printer according to claim 1, wherein: the coating device (3) comprises a scraper substrate (321), a scraper (322), an inkjet substrate (331) and a spray head (332);

the scraper (322) is arranged on the scraper base body (321), and the scraper (322) is contacted with the screen plate (312);

the spray head (332) is communicated with the ink-jet matrix (331), and the spray head (332) faces the screen plate (312); the ink jet bases (331) are arranged in two, the scraper bases (321) are located between the two ink jet bases (331), and the ink jet bases (331) and the scraper bases (321) are arranged side by side.

5. A diffusion film printer according to claim 4, wherein: the coating device (3) further comprises a third driving source (323), the interior of the scraper substrate (321) is hollow, and the third driving source (323) is arranged in the scraper substrate (321);

the scraper (322) is hinged with the scraper base body (321), the output end of the third driving source (323) is hinged with the scraper (322), and the third driving source (323) can change the angle of the scraper (322) relative to the screen plate (312).

6. A diffusion film printer according to claim 4, wherein: the ink cleaning assembly (4) further comprises a conveying source (43) and an ink supply bin (45);

the ink supply bin (45) is communicated with the ink collection bin (42), the ink supply bin (45) is communicated with the ink jet substrate (331), and the conveying source (43) conveys ink in the ink collection bin (42) into the ink supply bin (45).

7. A diffusion film printer according to claim 1, wherein: the diffusion film printer further comprises a sorting assembly (6), the sorting assembly (6) comprising:

a conveyor belt (61), wherein the conveyor belt (61) is arranged on the workbench (1), and the cut diffusion film is transported to the conveyor belt (61);

the detection piece (62), the detection piece (62) can detect the image of diffusion film on the conveyer belt (61), detection piece (62) with conveyer belt (61) electric connection.

8. A diffusion film printer according to claim 7, wherein: the detection piece (62) comprises a detection bracket (621), a camera (622) and a processor; the detection support (621) is arranged on the workbench (1), the camera (622) and the processor are arranged on the detection support (621), the camera (622) can shoot a diffusion film image on the conveyor belt (61) and transmit the image back to the processor to be compared with a standard image, and the transportation direction of the conveyor belt (61) is controlled according to the identification result.

9. A diffusion film printer according to claim 7, wherein: the diffusion film printer further comprises a collecting assembly (8), wherein the collecting assembly (8) comprises a first collecting bin (81) and a second collecting bin (82); the first collecting bin (81) and the second collecting bin (82) are respectively located at two ends of the conveyor belt (61) in the length direction, the first collecting bin (81) is used for collecting qualified diffusion films, and the second collecting bin (82) is used for collecting unqualified diffusion films.

10. A diffusion film printer according to claim 9, wherein: a UV curing assembly (7) is arranged between the first collecting bin (81) and the conveyor belt (61), and an air heater (83) is arranged in the first collecting bin (81).