Screen printing machine and screen printing method

By introducing printing adjustment and ink processing devices in the screen printing press, uniform extrusion and secondary scraping of ink are achieved, the problems of printing defects and ink unevenness are solved, and the printing quality and pattern clarity are improved.

CN115723414BActive Publication Date: 2025-07-08JIANGXI DUOSHENG ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202211602862.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-13
Publication Date
2025-07-08
Estimated Expiration
2042-12-13

AI Technical Summary

Technical Problem

In the printing process, existing screen printing machines are prone to problems such as printing defects and uneven ink thickness during the printing process, resulting in partial detachment of the printing surface and the occurrence of ink tips.

Method used

By setting up a printing adjustment device, lifting mechanism, ink printing mechanism, clamping device, printing plate assembly and ink processing device in the printing press, uniform extrusion and scraping of ink are achieved, ensuring uniform distribution of ink during the printing process, and performing secondary scraping when the pattern printing screen is about to leave the printed matter to remove the adhered ink.

Benefits of technology

It effectively solves the problems of printing defects and ink unevenness, improves printing quality, reduces the generation of ink tips, and ensures the clarity and uniformity of the printing pattern.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the technical field of screen printing machines, and specifically relates to a screen printing machine and a screen printing method. It includes a printing adjustment device arranged at the front and rear ends of the screen printing machine body, a lifting mechanism, the lower end of which is connected to the inside of the printing adjustment device and is slidably connected to both ends of the outer wall of the screen printing machine body, an ink printing mechanism, which is slidably connected to the upper end inside the lifting mechanism and can perform printing operations on the printed matter, and a clamping device, which is connected to the lower end inside the lifting mechanism. The present invention makes the ink immersed in the ink treatment device relatively uniform, can scrape the surface of the printed matter to remove surface particles, and can perform secondary scraping of the ink when the pattern printing screen is about to leave the printed matter to scrape off the ink sticking to the pattern printing screen, thereby greatly reducing the generation of ink tips.
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Description

Technical Field

[0001] The present invention relates to the technical field of screen printing machines, and particularly to a screen printing machine and a screen printing method. Background Art

[0002] A screen printing machine is a machine that uses a screen printing plate for printing. It belongs to a type of printing machine. A screen printing machine is a machine for printing text and images, and is a general term for machines or equipment used to produce printed matter. A screen printing machine is a relatively representative printing device among stencil printing machines. The materials for making the screen can be nylon filaments, copper wires, steel wires, or stainless steel wires in addition to real silk. It can be divided into flat screen printing machines, curved screen printing machines, rotary screen printing machines, etc.

[0003] The printing plate of the existing screen printing machine is a crisscrossed one woven from materials such as real silk. When printing, by placing the printing plate on the printing material and pushing the coating through the push plate inside the printing plate, the printing screen is brought into contact with the printing material, thereby printing on the printing screen. During the printing process, if there are unknown particles adhered to the surface of the printing material, when printing, the particles will block the printing of the scraping blade, resulting in the surface of the printing screen being covered and causing the phenomenon of incomplete printing. Moreover, since the ink of the screen printing machine is placed on one side of the printing screen, when printing, the ink will be uneven in thickness. When the thick ink is printed, the printing screen first contacts the printing material and then leaves the surface of the printing screen. When leaving the printing material, the printing screen will adhere to fine ink, causing the ink to be lifted up and forming ink tips, making the surface printing uneven and easily causing the situation of partial detachment of the printing surface. For this reason, we propose a screen printing machine and a screen printing method. Summary of the Invention

[0004] In view of the above and / or problems existing in the existing screen printing machine and screen printing method, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a screen printing machine and a screen printing method. By extruding the ink out of the printing screen and immersing it on the surface of the pattern printing screen to make the ink relatively uniform, scraping the surface particles through a processing scraping blade, and performing secondary scraping on the ink when the pattern printing screen is about to leave the printing material to scrape off the ink adhered to the pattern printing screen, the above-mentioned existing problems can be solved.

[0006] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided:

[0007] A screen printing machine, which includes:

[0008] A printing adjustment device, which is arranged at the front and rear ends of the screen printing machine body;

[0009] A lifting mechanism, the lower end of which is connected to the inside of the printing adjustment device and is slidably connected to both ends of the outer wall of the screen printing machine body;

[0010] An ink printing mechanism, which is slidably connected to the upper end inside the lifting mechanism and can perform printing operations on the printed matter;

[0011] A clamping device, which is connected to the lower end inside the lifting mechanism;

[0012] A printing plate assembly, which is detachably installed inside the clamping device;

[0013] An ink treatment device, which is detachably installed at the bottom of the printing plate assembly and is installed inside the clamping device together with the printing plate assembly.

[0014] As a preferred solution of the screen printing machine described in the present invention, wherein: the screen printing machine body includes:

[0015] A screen printing machine, which is placed on the ground and can perform transmission printing on the printed matter;

[0016] A printing table, which is arranged on the surface of the screen printing machine, and the surface is arranged as a conveyor belt to drive the printed matter for transmission.

[0017] As a preferred solution of the screen printing machine described in the present invention, wherein: the printing adjustment device includes:

[0018] Side plates, which are arranged at both ends of the outer wall of the screen printing machine, and the lifting mechanism is slidably connected between the upper ends of the side plates and the screen printing machine;

[0019] An ink transmission mechanism, which is arranged at the bottom of the side plates, and the upper end is connected to the bottom of the lifting mechanism and is composed of a transmission roller and a conveyor belt.

[0020] As a preferred solution of the screen printing machine described in the present invention, wherein: the lifting mechanism includes:

[0021] A sliding plate, which is slidably connected between the upper end of the side plate and the screen printing machine, and the bottom is connected to the surface of the ink transmission mechanism;

[0022] A telescopic rod, which is arranged on the surface of the sliding plate and can perform lifting operations;

[0023] A placement box, the two ends of the bottom of which are connected to the top of the telescopic rod and can connect the ink printing mechanism and the clamping device.

[0024] As a preferred solution of the screen printing machine described in the present invention, wherein: the placement box includes:

[0025] An ink scraping drive groove, which is arranged at the upper end inside the placement box and can slidably connect the ink printing mechanism;

[0026] A printed circuit board driving groove is arranged at the lower end inside the placement box and can be slidably connected to the clamping device;

[0027] A printed circuit board driving bidirectional screw is rotatably connected inside the printed circuit board driving groove, with its rear end connected to the output end of the motor, and two groups of clamping devices are threadedly connected to both ends of its outer wall;

[0028] A tooth groove is arranged at the top of the placement box and is meshed with the output end of the ink printing mechanism.

[0029] As a preferred solution of the screen printing machine described in the present invention, wherein: the ink printing mechanism includes:

[0030] An ink printing placement block is slidably connected inside the ink scraping driving groove, and a motor is installed at the right end of its outer wall;

[0031] A driving gear is arranged on the left side of the ink printing placement block and is connected to the output end of the motor installed at the right end of the outer wall of the ink printing placement block;

[0032] An ink coating scraping plate assembly is arranged at the front end of the surface of the ink printing placement block and is composed of a cylinder and a scraping plate;

[0033] An ink scraping plate assembly is arranged at the right end of the surface of the ink printing placement block.

[0034] As a preferred solution of the screen printing machine described in the present invention, wherein: the clamping device includes:

[0035] A movable plate is slidably connected inside the printed circuit board driving groove and is internally threadedly connected to both ends of the outer wall of the printed circuit board driving bidirectional screw;

[0036] A support pillar has its top installed at both ends of the bottom of the movable plate and its bottom installed with a U-shaped plate;

[0037] A limit bolt is threadedly connected to both ends of the top of the U-shaped plate and can penetrate through the upper end of the U-shaped plate.

[0038] As a preferred solution of the screen printing machine described in the present invention, wherein: the printed circuit board assembly includes:

[0039] A printed circuit board is detachably installed inside the movable plate;

[0040] A printing screen is arranged inside the printed circuit board;

[0041] Mounting grooves are arranged at both ends of the bottom of the printed circuit board.

[0042] As a preferred solution of the screen printing machine described in the present invention, wherein: the ink treatment device includes:

[0043] A treatment plate is detachably installed at the bottom of the printed circuit board;

[0044] Mounting blocks, which are arranged at both ends of the top of the processing board and are slidably connected inside the mounting grooves;

[0045] Guide grooves, which are arranged at both ends of the inner wall of the processing board;

[0046] Screws, which are rotatably connected inside the guide grooves and the front ends are connected to the output ends of the processing drive motors;

[0047] Processing scraping plates, both ends of which are threadedly connected to the outer walls of the screws and the height is not higher than the surface of the processing board;

[0048] Pattern printing screens, which are arranged inside the processing board and the surfaces are in contact with the processing scraping plates;

[0049] Pressing components, which are arranged at both ends of the bottom of the processing board and can press and fix the printed matter;

[0050] Springs, the tops of which are connected inside the notches opened at the bottom of the processing board and the bottoms are connected to rubber pads.

[0051] Screen printing method of a screen printing machine, including the following operating steps:

[0052] S1: Install the processing board at the lower end of the printing plate through the mounting blocks, and then install the printing plate and the processing board between two groups of U-shaped plates and fix them with limit bolts;

[0053] S2: Drive the lifting mechanism to move through the printing and conveying mechanism, adjust the printing position of the ink processing device, and drive the printing table to move the printed matter to stop directly below the ink processing device;

[0054] S3: Start the telescopic rod to make the bottom of the processing board contact the printed matter, press the printed matter through the rubber pad. At this time, start the processing drive motor to drive the processing scraping plates to scrape, remove the particles on the surface of the printed matter, and make the surface of the printed matter smoother during printing;

[0055] S4: Start the ink scraping and spreading plate assembly to scrape the printing screen, soak the ink into the surface of the pattern printing screen, print the printed matter, and then perform secondary scraping through the ink scraping plate assembly to scrape the ink back to the initial position and perform secondary coating on the surface of the printed matter to ensure the clarity of the printed pattern;

[0056] S5: When about to lift the pattern printing screen, start the processing drive motor again to make the processing scraping plates scrape the contacted ink, scrape off the ink sticking to the pattern printing screen, thereby greatly reducing the generation of ink tips, and then return the pattern printing screen and the processing board to the initial position and wait for the next printing.

[0057] Compared with the prior art:

[0058] The printing adjustment device can adjust the positions of the ink printing mechanism and the printing plate assembly to ensure full printing of the printed matter and improve printing adaptability;

[0059] The lifting mechanism can drive the ink processing device to contact the printed matter, so that the ink processing device can press and fix the printed matter, facilitating the printing operation on the printed matter;

[0060] The clamping device can clamp the printing plate assembly and the ink processing device. While preventing them from falling, it can expose the bottom of the ink processing device to press and fix the printed matter;

[0061] The printing plate assembly can perform printing operations on the printed matter. Through the grid-shaped printing screen arranged inside, the ink can penetrate into the interior of the ink processing device, making the ink inside the ink processing device relatively uniform. As a result, the printed pattern is more uniformly vivid and it is convenient to perform the tip removal operation;

[0062] The ink processing device can dilute the ink, making the ink inside the ink processing device relatively uniform. It can also scrape the surface of the printed matter to remove surface particles. And when the pattern printing screen is about to leave the printed matter, it can perform secondary scraping on the ink to scrape off the ink sticking to the pattern printing screen, thereby significantly reducing the generation of ink tips. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is the overall front view structural schematic diagram provided by the present invention;

[0064] Figure 2 It is the overall right view structural schematic diagram provided by the present invention;

[0065] Figure 3 It is the structural schematic diagram of the screen printing machine body provided by the present invention;

[0066] Figure 4 It is the structural schematic diagram of the lifting mechanism provided by the present invention;

[0067] Figure 5 It is the connection structural schematic diagram of the lifting mechanism provided by the present invention;

[0068] Figure 6 It is the connection structural schematic diagram of the ink printing mechanism provided by the present invention;

[0069] Figure 7 It is the connection structural schematic diagram of the clamping device provided by the present invention;

[0070] Figure 8 It is the structural schematic diagram of the clamping device provided by the present invention;

[0071] Figure 9Exploded view of the connection structure of the printed board assembly provided by the present invention;

[0072] Figure 10 Schematic structural diagram of the ink processing device provided by the present invention;

[0073] Figure 11 Bottom view structural diagram of the ink processing device provided by the present invention;

[0074] Figure 12 Exploded structural diagram of the ink processing device provided by the present invention;

[0075] Figure 13 Schematic structural diagram of the pressing component provided by the present invention.

[0076] In the figure: Screen printing machine body 1, screen printing machine 11, printing table 12, printing adjustment device 2, side plate 21, printing and conveying mechanism 22, lifting mechanism 3, sliding plate 31, telescopic rod 32, placing box 33, ink scraping drive groove 331, printed board drive groove 332, printed board drive bidirectional screw 333, tooth groove 334, ink printing mechanism 4, ink printing placing block 41, drive gear 42, ink coating scraping plate assembly 43, ink scraping plate assembly 44, clamping device 5, movable plate 51, support column 52, U-shaped plate 53, limit bolt 54, printed board assembly 6, printed board 61, printing screen 62, installation groove 63, ink processing device 7, processing board 71, installation block 72, guide groove 73, screw 74, processing drive motor 75, processing scraping plate 76, pattern printing screen 77, pressing component 78, spring 781, rubber pad 782. Detailed implementation manners

[0077] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the implementation manners of the present invention in detail with reference to the accompanying drawings.

[0078] The present invention provides a screen printing machine and a screen printing method, which have the advantages of making the ink immersed in the ink processing device 7 relatively uniform, being able to scrape the surface of the printed matter to remove surface particles, and being able to perform secondary scraping on the ink when the pattern printing screen 77 is about to leave the printed matter, scraping off the ink sticking to the pattern printing screen 77, thereby greatly reducing the generation of ink tips. Please refer to Figures 1-13 , including a printing adjustment device 2, a lifting mechanism 3, an ink printing mechanism 4, a clamping device 5, a printed board assembly 6 and an ink processing device 7;

[0079] The screen printing machine body 1 can drive the printing material for transmission, facilitating continuous printing and increasing the printing efficiency. The screen printing machine body 1 includes: a screen printing machine 11 and a printing table 12. The screen printing machine 11 is placed on the ground and can transmit and print the printing material. The printing table 12 is arranged on the surface of the screen printing machine 11, and its surface is set as a conveyor belt to drive the printing material for transmission;

[0080] The printing adjustment device 2 is arranged at the front and rear ends of the screen printing machine body 1. Through the printing adjustment device 2, the positions of the ink printing mechanism 4 and the printing plate assembly 6 can be adjusted to ensure that the printing material can be fully printed and the printing adaptability is increased. The printing adjustment device 2 includes: side plates 21 and an ink transmission mechanism 22. The side plates 21 are arranged at both ends of the outer wall of the screen printing machine 11, and a lifting mechanism 3 is slidably connected between the upper ends of the side plates 21 and the screen printing machine 11. The ink transmission mechanism 22 is arranged at the bottom of the side plates 21, and its upper end is connected to the bottom of the lifting mechanism 3 and is composed of a driving roller and a conveyor belt;

[0081] The lower end of the lifting mechanism 3 is connected to the inside of the printing adjustment device 2 and is slidably connected to both ends of the outer wall of the screen printing machine body 1. Through the lifting mechanism 3, the ink processing device 7 can be driven to contact the printing material, so that the ink processing device 7 can press and fix the printing material, facilitating the printing operation of the printing material. The lifting mechanism 3 includes: a sliding plate 31, a telescopic rod 32, a placement box 33, a scraping ink drive groove 331, a printing plate drive groove 332, a printing plate drive bidirectional screw 333, and a tooth groove 334. The sliding plate 31 is slidably connected between the upper end of the side plate 21 and the screen printing machine 11, and its bottom is connected to the surface of the ink transmission mechanism 22. The telescopic rod 32 is arranged on the surface of the sliding plate 31 and can perform lifting operations. The placement box 33 is connected to the top of the telescopic rod 32 at both ends of its bottom and can connect the ink printing mechanism 4 and the clamping device 5. The scraping ink drive groove 331 is arranged at the upper end inside the placement box 33 and can slidably connect the ink printing mechanism 4. The printing plate drive groove 332 is arranged at the lower end inside the placement box 33 and can slidably connect the clamping device 5. The printing plate drive bidirectional screw 333 is rotatably connected to the inside of the printing plate drive groove 332, and its rear end is connected to the output end of the motor, and both ends of its outer wall are threadedly connected to two groups of clamping devices 5. The tooth groove 334 is arranged on the top of the placement box 33 and is meshed with the output end of the ink printing mechanism 4;

[0082] The ink printing mechanism 4 is slidably connected to the upper end inside the lifting mechanism 3. Through the ink printing mechanism 4, printing operations can be performed on the printed matter, enabling the ink on the printing plate assembly 6 to be scraped into the interior of the ink processing device 7, and then the printed matter is printed through the ink processing device 7. The ink printing mechanism 4 includes: an ink printing placement block 41, a driving gear 42, an ink coating scraping plate assembly 43, and an ink scraping plate assembly 44. The ink printing placement block 41 is slidably connected inside the ink scraping driving groove 331, and a motor is installed at the right end of its outer wall. The driving gear 42 is arranged on the left side of the ink printing placement block 41 and is connected to the output end of the motor installed at the right end of the outer wall of the ink printing placement block 41. The ink coating scraping plate assembly 43 is arranged at the front end of the surface of the ink printing placement block 41 and consists of a cylinder and a scraping plate. The ink scraping plate assembly 44 is arranged at the right end of the surface of the ink printing placement block 41;

[0083] The clamping device 5 is connected to the lower end inside the lifting mechanism 3. Through the clamping device 5, the printing plate assembly 6 and the ink processing device 7 can be clamped, preventing them from falling, and at the same time, the bottom of the ink processing device 7 can be exposed to press and fix the printed matter. The clamping device 5 includes: a movable plate 51, a support column 52, a U-shaped plate 53, and a limit bolt 54. The movable plate 51 is slidably connected inside the printing plate driving groove 332 and is internally threaded to the outer walls at both ends of the printing plate driving bidirectional screw 333. The support column 52 has its top installed at both ends of the bottom of the movable plate 51 and its bottom installed with a U-shaped plate 53. The limit bolt 54 is threadedly connected to both ends of the top of the U-shaped plate 53 and can penetrate the upper end of the U-shaped plate 53;

[0084] The printing plate assembly 6 is detachably installed inside the clamping device 5. Through the printing plate assembly 6, printing operations can be performed on the printed matter. And through the grid-shaped printing screen arranged inside, the ink can penetrate into the interior of the ink processing device 7, making the ink inside the ink processing device 7 relatively uniform, so that the printed pattern is more uniformly bright, and it is convenient to perform the de-tipping operation. The printing plate assembly 6 includes: a printing plate 61, which is detachably installed inside the movable plate 51, a printing screen 62, which is arranged inside the printing plate 61, and mounting grooves 63, which are arranged at both ends of the bottom of the printing plate 61;

[0085] An ink treatment device 7, which is detachably installed at the bottom of the printing plate assembly 6 and is installed inside the clamping device 5 together with the printing plate assembly 6. Through the ink treatment device 7, the ink can be diluted to make the ink immersed inside the ink treatment device 7 relatively uniform, and the surface of the printed matter can be scraped to remove surface particles. Also, when the pattern printing screen 77 is about to leave the printed matter, the ink can be scraped again to scrape off the ink sticking to the pattern printing screen 77, thereby greatly reducing the generation of ink tips. The ink treatment device 7 includes: a treatment plate 71, a mounting block 72, a guide groove 73, a screw 74, a treatment drive motor 75, a treatment scraper 76, a pattern printing screen 77, a pressing assembly 78, a spring 781, and a rubber pad 782. The treatment plate 71 is detachably installed at the bottom of the printing plate 61. The mounting block 72 is arranged at both ends of the top of the treatment plate 71 and is slidably connected inside the mounting groove 63. The guide groove 73 is arranged at both ends of the inner wall of the treatment plate 71. The screw 74 is rotatably connected inside the guide groove 73, and its front end is connected to the output end of the treatment drive motor 75. The treatment scraper 76 has both ends threadedly connected to the outer wall of the screw 74 and its height is not higher than the surface of the treatment plate 71. The pattern printing screen 77 is arranged inside the treatment plate 71 and its surface contacts the treatment scraper 76. The pressing assembly 78 is arranged at both ends of the bottom of the treatment plate 71 and can press and fix the printed matter. The spring 781 has its top end connected inside the notch opened at the bottom of the treatment plate 71 and its bottom end connected to the rubber pad 782.

[0086] During specific use, those skilled in the art install the treatment plate 71 at the lower end of the printing plate 61 through the mounting block 72, and then install the printing plate 61 and the treatment plate 71 between two U-shaped plates 53 and fix them through the limit bolts 54. By driving the printing and conveying mechanism 22 to drive the lifting mechanism 3 to move, the printing position of the ink treatment device 7 is adjusted. By driving the printing table 12, the printed matter is moved to a position directly below the ink treatment device 7 and stopped. By starting the telescopic rod 32, the bottom of the treatment plate 71 contacts the printed matter, and the printed matter is pressed through the rubber pad 782. At this time, the treatment drive motor 75 is started to drive the treatment scraper 76 to scrape, removing the particles on the surface of the printed matter and making the surface of the printed matter more flat when printing. By starting the ink scraping blade assembly 43 to scrape the printing screen 62, the ink is invaded onto the surface of the pattern printing screen 77 to print the printed matter, and then the ink is scraped again through the ink scraping plate assembly 44 to scrape the ink back to the initial position and perform secondary coating on the surface of the printed matter to ensure the clarity of the printed pattern. When the pattern printing screen 77 is about to be lifted, by starting the treatment drive motor 75 again, the treatment scraper 76 scrapes the contacted ink to scrape off the ink sticking to the pattern printing screen 77, thereby greatly reducing the generation of ink tips. Then, the pattern printing screen 77 and the treatment plate 71 are restored to the initial position, waiting for the next printing.

[0087] Although the present invention has been described above with reference to the embodiments, various modifications thereof can be made and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. Screen printing machine, characterized in that: Including: A printing adjustment device, which is arranged at the front and rear ends of the screen printing machine body; A lifting mechanism, the lower end of which is connected to the inside of the printing adjustment device and is slidably connected to both ends of the outer wall of the screen printing machine body; an ink printing mechanism, which is slidably connected to the upper end inside the lifting mechanism and can perform printing operations on the printed matter; a clamping device, which is connected to the lower end inside the lifting mechanism; a printing plate assembly, which is detachably installed inside the clamping device; An ink treatment device, which is detachably installed at the bottom of the printing plate assembly and is installed inside the clamping device together with the printing plate assembly; The screen printing machine body includes: a screen printing machine, which is placed on the ground and can transmit and print the printed matter; a printing table, which is arranged on the surface of the screen printing machine, and the surface is set as a conveyor belt to drive the printed matter to be transmitted; The printing adjustment device includes: side plates, which are arranged at both ends of the outer wall of the screen printing machine, and the lifting mechanism is slidably connected between the upper ends of the side plates and the screen printing machine; an ink transmission mechanism, which is arranged at the bottom of the side plates, and the upper end is connected to the bottom of the lifting mechanism and is composed of a transmission roller and a conveyor belt; The lifting mechanism includes: a sliding plate, which is slidably connected between the upper end of the side plate and the screen printing machine, and the bottom is connected to the surface of the ink transmission mechanism; a telescopic rod, which is arranged on the surface of the sliding plate and can perform lifting operations; a placement box, the two ends of the bottom of which are connected to the top of the telescopic rod and can connect the ink printing mechanism and the clamping device; The placement box includes: a scraping ink drive groove, which is arranged at the upper end inside the placement box and can slidably connect the ink printing mechanism; a printing plate drive groove, which is arranged at the lower end inside the placement box and can slidably connect the clamping device; a printing plate drive bidirectional screw, which is rotatably connected to the inside of the printing plate drive groove, and the rear end is connected to the output end of the motor, and both ends of the outer wall are threadedly connected to two groups of clamping devices; a tooth groove, which is arranged at the top of the placement box and is meshed with the output end of the ink printing mechanism; The clamping device includes: a movable plate, which is slidably connected to the inside of the printing plate drive groove, and the inside is threadedly connected to both ends of the outer wall of the printing plate drive bidirectional screw; a support column, the top of which is installed at both ends of the bottom of the movable plate, and the bottom is installed with a U-shaped plate; a limit bolt, which is threadedly connected to both ends of the top of the U-shaped plate and can penetrate through the upper end of the U-shaped plate; The printing plate assembly includes: a printing plate, which is detachably installed inside the U-shaped plate; a printing screen, which is arranged inside the printing plate; mounting grooves, which are arranged at both ends of the bottom of the printing plate; The ink treatment device includes: a treatment plate, which is detachably installed at the bottom of the printing plate; mounting blocks, which are arranged at both ends of the top of the treatment plate and are slidably connected to the inside of the mounting grooves; guide grooves, which are arranged at both ends of the inner wall of the treatment plate; a screw, which is rotatably connected to the inside of the guide groove, and the front end is connected to the output end of the treatment drive motor; a treatment scraping plate, the two ends of which are threadedly connected to the outer wall of the screw and the height is not higher than the surface of the treatment plate; a pattern printing screen, which is arranged inside the treatment plate and the surface contacts the treatment scraping plate; a pressing component, which is arranged at both ends of the bottom of the treatment plate and can press and fix the printed matter; a spring, the top of which is connected to the notch opened at the bottom of the treatment plate, and the bottom is connected to a rubber pad.

2. The screen printing machine according to claim 1, wherein The ink printing mechanism includes: an ink placement block, which is slidably connected inside the ink scraping drive groove, and a motor is installed at the right end of its outer wall; a driving gear, which is arranged on the left side of the ink placement block and is connected to the output end of the motor installed at the right end of the outer wall of the ink placement block; an ink coating squeegee assembly, which is arranged at the front end of the surface of the ink placement block and consists of a cylinder and a squeegee; an ink scraping plate assembly, which is arranged at the rear end of the surface of the ink placement block.

3. The screen printing method of the screen printing machine according to claim 2, characterized in that, It includes the following operating steps: S1: Install the processing plate at the lower end of the printing plate through the mounting block, and then install the printing plate and the processing plate between two U-shaped plates and fix them with limit bolts. S2: Drive the lifting mechanism to move through the printing and conveying mechanism, adjust the printing position of the ink processing device, and drive the printing table to move the printed matter to stop directly below the ink processing device. S3: Start the telescopic rod to make the bottom of the processing plate contact the printed matter, press the printed matter through the rubber pad. At this time, start the processing drive motor to drive the processing squeegee to scrape, remove the particles on the surface of the printed matter, and make the surface of the printed matter smoother during printing. S4: Start the ink coating squeegee assembly to scrape the printing screen, infiltrate the ink onto the surface of the pattern printing screen, print the printed matter, and then perform a secondary scrape through the ink scraping plate assembly to scrape the ink back to the initial position and perform a secondary coating on the surface of the printed matter to ensure the clarity of the printed pattern. S5: When about to lift the pattern printing screen, start the processing drive motor again to make the processing squeegee scrape the contacted ink, scrape off the ink sticking to the pattern printing screen, thereby greatly reducing the generation of ink tips, and then restore the pattern printing screen and the processing plate to the initial position and wait for the next printing.

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