Printing device for preventing ink diffusion

Abstract

The present invention discloses a printing device for preventing ink diffusion, which relates to the field of printing technology and includes a frame and a brush roller assembly installed on the frame. The brush roller assembly includes a clamping plate frame, a first bracket is installed on the outer side of the clamping plate frame, a motor is provided at one end of the first bracket away from the clamping plate frame, a thin rod is connected to the middle of one end of the motor close to the clamping plate frame, the thin rod is rotatably installed with the first bracket through the motor, and the thin rod is installed with a clamping plate frame pin; a motor brush roller is sleeved on the hoop end of the clamping plate frame, and an elastic ink coating sleeve is sleeved on the outer surface of the electric brush roller. The printing device for preventing ink diffusion allows the elastic ink coating sleeve to dip into sufficient ink, and timely apply ink to the surface of the printing plate located in front of the plate seat, so as to ensure that the ink on the surface of the printing plate is sufficient at all times, and avoid the problem of poor printing quality caused by lack of ink or insufficient ink.

Description

Technical Field

[0001] The invention relates to the technical field of printing, in particular to a printing device for preventing ink from diffusing. Background Art

[0002] Letterpress printing is a type of printing that uses a printing plate with raised image and text parts, also known as relief printing for short. It is one of the main printing processes with the longest history and has been continuously improved during its long-term development. Initially, text or images were carved on a wooden board, and the non-image and text parts were removed to make the images and texts protrude. Then ink was applied and the paper was covered and printed. This is the most primitive relief printing method. The principle of letterpress printing is relatively simple. In letterpress printing, the inking device of the printing press first distributes the ink evenly, and then transfers the ink to the printing plate through the ink roller. Since the image and text part on the relief plate is much higher than the non-image and text part on the printing plate, the ink on the ink roller can only be transferred to the image and text part of the printing plate, while the non-image and text part has no ink. The paper feeding mechanism of the printing press transports the paper to the printing part of the printing press. Under the joint action of the printing plate device and the embossing device, the ink on the image and text part of the printing plate is transferred to the substrate, thereby completing the printing of a printed product.

[0003] Most of the existing letterpress printing devices cannot automatically help the elastic ink sleeve to dip into a sufficient amount of ink, cannot automatically replenish ink, and cannot always ensure that there is sufficient ink on the surface of the printing plate. This will cause the finished product after letterpress printing to have poor printing quality due to lack of ink or insufficient ink. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a printing anti-ink diffusion printing device, including a frame, a brush roller assembly is installed on the left side of the top of the frame, the brush roller assembly includes a clamping plate frame, a first bracket is installed on the outer side of the clamping plate frame, and the bottom of the first bracket is fixedly connected to the top of the frame, a motor is fixedly installed at the end of the first bracket away from the clamping plate frame, a thin rod is fixedly connected to the middle of the end of the motor close to the clamping plate frame, and the thin rod is rotatably installed with the first bracket through the motor, the thin rod is installed with a clamping plate frame pin, and the clamping plate frame is rotatably installed with the motor through the thin rod and the first bracket; an electric brush roller is mounted on the hoop end of the clamping plate frame, and an elastic ink coating sleeve is mounted on the outer surface of the electric brush roller for dipping ink.

[0005] Preferably, it also includes a stamping assembly, which is installed on the inner side of the brush roller assembly and on the left side of the top end of the frame. The stamping assembly includes a guide plate, and the guide plate is installed on the side of the clamping frame away from the motor. A rectangular cavity is opened through the surface of the guide plate, and a pneumatic push rod is inserted in the rectangular cavity opened on the surface of the guide plate, and the telescopic end of the pneumatic push rod is connected to the guide plate through the rectangular cavity.

[0006] Preferably, it also includes an ink supply assembly, which is assembled in the middle of the left end of the frame. The ink supply assembly includes a C-shaped ink fountain embedded in the middle of the left end of the frame, and the C-shaped ink fountain is arranged in a C shape as a whole. A reflux pipe is installed at the inner edge of the C-shaped ink fountain for recovering excess ink, and a plurality of ink supply tubes are installed in parallel on the inner side of the C-shaped ink fountain for conveying ink into a porous ink storage body. An ink dipping chamber is opened in the middle of the free end of the C-shaped ink fountain, which provides an independent dipping space for the electric brush roller to enter the inner side of the ink dipping chamber to dip in ink under the rotation and swing of the clamping plate frame.

[0007] Preferably, it also includes a printing assembly, which is installed on the top right side of the frame. The printing assembly includes a printing cylinder, and six groups of bodies to be printed are connected in a circular array on the outer surface of the printing cylinder. A third bracket is symmetrically installed on both sides of the bodies to be printed, and the bottom of the third bracket is fixedly connected to the frame. A DD motor is fixedly installed on the third bracket, and the printing cylinder is rotatably installed with the third bracket through the DD motor.

[0008] Preferably, it also includes a feeding assembly, which is installed on the edge of the frame, and the feeding assembly includes a fourth bracket fixedly connected to the edge of the frame, and the top of the fourth bracket is connected to a placement frame for stacking the printing plate, and the angle between the placement frame and the fourth bracket is 120 degrees, and the angle between the body to be printed located on the left side of the bottom of the printing cylinder in the figure at this time is the same as the angle between the body to be printed at this position and the third bracket. At this time, the body to be printed located in the middle of the left end of the printing cylinder in a horizontal position corresponds to the plate seat, and the body to be printed here is recorded as the second printing body. At this time, the pneumatic push rod 1 can be started to drive the printing plate evenly coated with ink on the plate seat to be pressed against the printing plate on the second printing body. During this period, the pneumatic push rod 2 can be controlled to drive the carrier to extend so that the pasting The printing plate installed on the inclined support plate arrives at a path that coincides with the clockwise rotation of the first printing body. As the DD motor drives the printing cylinder to rotate clockwise between the two sets of third brackets, the printing plate placed on the inclined support plate is guided by the side clamping plate along the guide groove to be filled into the square groove. After the printing plate is successfully filled into the square groove, the pneumatic push rod 2 drives the carrier member to retract, and then the new printing plate is taken out and placed on the inclined support plate, waiting to be automatically filled into the inner side of the next body to be printed. In this way, the printing plate can be automatically loaded on the inner side of the body to be printed without stopping the printing assembly. A pneumatic push rod 2 is installed in the middle of the bottom end of the placement frame, and a carrier member is telescopically installed at the end of the pneumatic push rod 2 away from the placement frame. The carrier member can extend in and out of the inner bottom of the placement frame through the pneumatic push rod 2.

[0009] Preferably, a second bracket is installed on the side of the guide plate away from the splint frame, and the bottom end of the second bracket is fixedly connected to the left side of the top end of the frame, cross bars are symmetrically connected to both sides of the pneumatic push rod 1, and the end of the cross bar away from the splint frame is fixedly connected to the second bracket, a partition plate is mounted on the end of the cross bar away from the second bracket, and the end of the cross bar away from the second bracket is inserted with a thin rod, and the thin rod can rotate in the middle of the cross bar, the partition plate is blocked between the splint frame and the guide plate, and the guide plate is telescopically mounted with the second bracket through the cooperation of the pneumatic push rod 1 and the cross bar.

[0010] Preferably, one end of the guide plate away from the second bracket is fixedly connected to a plate seat, and clamping strips are symmetrically connected to the surface of the plate seat on both sides. The surface of the plate seat is clamped with a printing plate through the clamping strips, and the surface of the printing plate is provided with a printing body protruding from the surface of the printing plate, and a threaded cylinder is fixedly connected to the middle of the top edge of one side of the plate seat facing the guide plate.

[0011] Preferably, a screw is installed on the internal thread of the threaded barrel, and a clamp is installed on the middle of the top edge of the plate seat facing away from the guide plate, and the clamp is installed on the plate seat thread through the cooperation of the screw and the threaded barrel, wherein the clamp is used to limit and clamp the middle of the top of the printing plate, and limit the entire printing plate to be installed directly in front of the plate seat.

[0012] Preferably, a porous ink storage body is embedded in the inner side of the ink dipping chamber opened in the middle of the two free ends of the C-shaped ink fountain, which is used to temporarily store the ink transported by the ink supply tube. Branch ink plates are fixedly connected to the upper and lower edges of the porous ink storage body, and the two branch ink plates are concentric circle designed, and the branch ink plates are fitted on the curved wall of the ink dipping chamber.

[0013] Preferably, two curved walls of the ink dipping chamber are connected with barb bodies, the number of which is two groups and the whole is made of elastic metal material, an ink absorbing flat tube is embedded and installed on the inner wall surface of the barb body, and the end of the ink absorbing flat tube away from the barb body is connected to the return pipe, wherein the cross-section of the barb body is in the shape of a fishhook, and the hook edge of the barb body is chamfered.

[0014] Preferably, the side of the body to be printed away from the printing cylinder is symmetrically connected with two side clamps, and a square groove is formed between the two side clamps. A rubber pad is fittedly installed in the middle of the side of the body to be printed away from the printing cylinder, and the rubber pad is integrally fittedly installed on the inner wall surface of the square groove, so as to increase the resistance of the printing plate when it is clamped in the square groove, so as to prevent the printing plate from easily slipping out of the square groove.

[0015] Preferably, a printing plate is inserted into the square groove, and the printing plate is mounted in the square groove through side clamps, and a positioning rod is threadedly mounted on the side wall surface of the third bracket away from the DD motor for limiting and shielding the extended end of the carrier.

[0016] Preferably, the plate carrier comprises an inclined support plate installed at the telescopic end of the second pneumatic push rod, the middle part of the top edge of the inclined support plate is fixedly connected with a baffle, and the top surface of the inclined support plate is fitted with a rubber plate, which is used to prevent the printing plate from sliding off easily when it is fitted and placed on the top surface of the inclined support plate, and the middle part of the two wide edges of the inclined support plate are provided with guide grooves, which can cooperate with the side clamping plates accordingly, so that the printing body to be printed can be scraped away by the printing plate placed on the top surface of the inclined support plate under the guidance of the cooperation of the guide grooves and the side clamping plates, and the wide edge of the inclined support plate close to the placing frame is provided with a chamfered portion, and the bottom of the inclined support plate close to the placing frame is arranged to fit on the surface of the second pneumatic push rod, and the telescopic end connecting part of the second pneumatic push rod itself is also processed with chamfered corners, which is convenient for the inclined support plate close to the placing frame, and can fit on the surface of the second pneumatic push rod to smoothly guide it into the inner bottom of the placing frame, so as to quickly remove the printing plate at the bottom of the placing frame.

[0017] The present invention provides a printing device for preventing ink diffusion, which has the following beneficial effects:

[0018] The electric brush roller is driven by a motor with the help of a clamping plate frame to make a reciprocating rotational motion between two ink dipping chambers opened at the two free ends of the C-shaped ink fountain, so that no matter the electric brush roller rotates clockwise to enter the ink dipping chamber at the bottom port of the C-shaped ink fountain, or rotates counterclockwise to enter the ink dipping chamber at the bottom top port of the C-shaped ink fountain, the elastic ink coating sleeve can be dipped into sufficient ink to timely apply ink to the surface of the printing plate located in front of the plate seat, thereby ensuring that there is sufficient ink on the surface of the printing plate at all times and avoiding the problem of poor printing quality caused by lack of ink or insufficient ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the external structure of a printing device for preventing ink diffusion according to the present invention;

[0020] Figure 2 It is a schematic diagram of the disassembled structure of the brush roller assembly and the stamping assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the assembly structure of the brush roller assembly and the stamping assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of the end cross-sectional structure of the ink feeding assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the ink dipping chamber of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the printing assembly of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the printing cylinder and the body to be printed of the present invention;

[0026] Figure 8 It is a schematic diagram of the assembly structure of the printing assembly and the feeding assembly of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the feeding assembly of the present invention;

[0028] Fig.10 It is a schematic diagram of the installation structure of the printing plate on the carrier member of the present invention;

[0029] Fig.11 The present invention is a schematic structural diagram of the ink taking process of the brush roller assembly inside the ink dipping chamber.

[0030] In the figure: 1, frame; 2, brush roller assembly; 21, clamping plate frame; 22, first bracket; 23, motor; 24, thin rod; 25, electric brush roller; 26, elastic ink sleeve; 3, stamping assembly; 31, guide plate; 32, rectangular cavity; 33, pneumatic push rod 1; 34, cross bar; 35, second bracket; 36, partition plate; 37, plate seat; 38, card strip; 39, printing plate; 310, threaded cylinder; 311, screw rod; 312, clamping block; 4, ink supply assembly; 41, C-shaped ink fountain; 42, return pipe; 43, ink delivery pipe; 44 , ink dipping chamber; 45, porous ink storage body; 46, branch ink plate; 47, hook body; 48, ink absorbing flat tube; 5, printing assembly; 51, printing cylinder; 52, body to be printed; 53, third bracket; 54, DD motor; 55, side clamp; 56, rubber pad; 57, printing plate; 6, feeding assembly; 61, fourth bracket; 62, placement frame; 63, pneumatic push rod 2; 64, plate carrier; 641, inclined support plate; 642, stop bar; 643, rubber plate; 644, guide groove; 645, chamfered corner; 7, positioning rod. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 11As shown, a printing device for preventing ink diffusion described in this embodiment includes a frame 1, a brush roller assembly 2 is installed on the left side of the top of the frame 1, the brush roller assembly 2 includes a clamping plate frame 21, a first bracket 22 is installed on the outer side of the clamping plate frame 21, and the bottom of the first bracket 22 is fixedly connected to the top of the frame 1, a motor 23 is fixedly installed on the end of the first bracket 22 away from the clamping plate frame 21, a thin rod 24 is fixedly connected to the middle of the end of the motor 23 close to the clamping plate frame 21, and the thin rod 24 is rotatably installed with the first bracket 22 through the motor 23, the thin rod 24 is installed with a latch on the clamping plate frame 21, and the clamping plate frame 21 is rotatably installed with the motor 23 through the thin rod 24 and the first bracket 22; the hoop end of the clamping plate frame 21 is sleeved with an electric brush roller 25. An elastic ink-coating sleeve 26 is mounted on the outer surface of the electric brush roller 25 for dipping ink. In the specific use process, the thickness of the elastic ink-coating sleeve 26 is divided into various types. The elastic ink-coating sleeve 26 of appropriate thickness can be selected according to the average total amount of ink required for the text or picture protruding on the surface of the printing plate 39 each time, to ensure that after the elastic ink-coating sleeve 26 has excess ink scraped off by the barb body 47, the remaining ink attached to the elastic ink-coating sleeve 26 can be evenly applied to the printing plate 39, neither too much nor too little. That is, by controlling the specific thickness of the elastic ink-coating sleeve 26, the total amount of ink that can be effectively attached to the elastic ink-coating sleeve 26 can be controlled to adapt to the combination of printing plates 39 with different total amounts of ink requirements, thereby achieving precise control of the ink.

[0033] The stamping assembly 3 is also included, which is installed on the inner side of the brush roller assembly 2 and on the left side of the top of the frame 1. The stamping assembly 3 includes a guide plate 31, and the guide plate 31 is installed on the side of the clamping plate frame 21 away from the motor 23. A rectangular cavity 32 is opened on the surface of the guide plate 31, and a pneumatic push rod 33 is inserted into the rectangular cavity 32 opened on the surface of the guide plate 31, and the telescopic end of the pneumatic push rod 33 is connected to the guide plate 31 through the rectangular cavity 32; a second bracket 35 is installed on the side of the guide plate 31 away from the clamping plate frame 21, and the second bracket 35 is The bottom end is fixedly connected to the left side of the top of the frame 1, and the two sides of the pneumatic push rod 1 33 are symmetrically connected with cross bars 34, and the end of the cross bar 34 away from the clamping plate frame 21 is fixedly connected to the second bracket 35, and the end of the cross bar 34 away from the second bracket 35 is sleeved with a partition plate 36, and the end of the cross bar 34 away from the second bracket 35 is inserted with the thin rod 24, and the thin rod 24 can rotate in the middle of the cross bar 34, and the partition plate 36 is blocked between the clamping plate frame 21 and the guide plate 31, and the guide plate 31 is telescopically installed with the second bracket 35 through the cooperation of the pneumatic push rod 1 33 and the cross bar 34;

[0034] One end of the guide plate 31 away from the second bracket 35 is fixedly connected to a plate seat 37, and clamping strips 38 are symmetrically connected to the surface of the plate seat 37 on both sides. A printing plate 39 is clamped on the surface of the plate seat 37 through the clamping strips 38, and a printing body protruding from the surface of the printing plate 39 is provided on the surface of the printing plate 39. A threaded barrel 310 is fixedly connected to the middle of the top edge of the side of the plate seat 37 facing the guide plate 31; a screw rod 311 is installed on the internal thread of the threaded barrel 310, and a clamping block 312 is installed in the middle of the top edge of the side of the plate seat 37 away from the guide plate 31, and the clamping block 312 is threadedly installed with the plate seat 37 through the cooperation of the screw rod 311 and the threaded barrel 310, wherein the clamping block 312 is used to limit and clamp the middle of the top of the printing plate 39, and limit the printing plate 39 as a whole and install it just in front of the plate seat 37.

[0035] The ink supply assembly 4 is assembled at the middle of the left end of the frame 1. The ink supply assembly 4 includes a C-shaped ink fountain 41 which is mounted in the middle of the left end of the frame 1. The C-shaped ink fountain 41 is arranged in a C-shaped shape. A return pipe 42 is installed at the inner edge of the C-shaped ink fountain 41 for recovering excess ink. A plurality of ink delivery pipes 43 are installed in parallel on the inner side of the C-shaped ink fountain 41 for delivering ink to a porous ink storage body 45. An ink dipping chamber 44 is provided at the middle of the free end of the C-shaped ink fountain 41 to provide an independent dipping space for the electric brush roller 25 to enter the ink dipping chamber 44 and dip the ink under the rotation and swing of the clamping plate frame 21.

[0036] The printing assembly 5 is installed on the top right side of the frame 1. The printing assembly 5 includes a printing cylinder 51. Six groups of printing bodies 52 are connected to the outer surface of the printing cylinder 51 in a circular array. The two sides of the printing bodies 52 are symmetrically installed with third brackets 53. The bottom of the third bracket 53 is fixedly connected to the frame 1. A DD motor 54 is fixedly installed on the third bracket 53. The printing cylinder 51 is rotatably installed with the third bracket 53 through the DD motor 54.

[0037] A feeding assembly 6, which is mounted on the edge of the frame 1, and includes a fourth bracket 61 fixedly connected to the edge of the frame 1, and a placement frame 62 is connected to the top of the fourth bracket 61 for stacking the printing plate 57, and the angle between the placement frame 62 and the fourth bracket 61 is 60 degrees;

[0038] at this time, Figure 8 In the figure, the body to be printed 52 located at the left side of the bottom of the printing cylinder 51 is recorded as the first printing body; at this time, the body to be printed 52 located in the middle of the left end of the printing cylinder 51 and in a horizontal position corresponds to the plate base 37 in a positive direction, and the body to be printed 52 here is recorded as the second printing body.

[0039] That is, the angle between the placement frame 62 and the fourth bracket 61 is 60 degrees, and Figure 8The angles between the first printing body and the third bracket 53 are the same; at this time, the pneumatic push rod 1 33 can be started to drive the printing plate 39 evenly coated with ink on the plate seat 37 to be pressed against the printing plate 57 on the second printing body, and a pneumatic push rod 2 63 is installed in the middle of the bottom end of the placement frame 62, and a carrier member 64 is telescopically installed at one end of the pneumatic push rod 2 63 away from the placement frame 62, and the carrier member 64 can be extended in and out of the inner bottom of the placement frame 62 through the pneumatic push rod 2 63.

[0040] When in use, the printing plate 57 which is neatly stacked is inserted and installed inside the placement frame 62 in advance, and the printing plate 57 which is placed on the top surface of the inclined support plate 641 is brought out from the bottom right end of the placement frame 62 by the extension of the pneumatic push rod 63, and the inclined support plate 641 is extended to the right by the pneumatic push rod 63 to the position where it is limited and blocked by the positioning rod 7. At this time, the DD motor 54 is started to drive the printing body 52 to rotate clockwise around the printing cylinder 51, and the clockwise rotation of 60 degrees is a movement unit, and intermittent short Pause, use the clockwise rotating body to be printed 52 to receive the printing plate 57 into the printing plate 57, so that the stamping assembly 3 can stamp the printing plate 57 on the second printing body. At the same time, the inclined support plate 641 scrapes away the printing plate 57 placed on the top surface of the inclined support plate 641 on the body to be printed 52, and driven by the clockwise rotation of the DD motor 54, the body to be printed 52 is rotated clockwise by 60 degrees again, so that the body to be printed 52 and the printing plate 57 come to the horizontal position corresponding to the plate seat 37;

[0041] Then, the plate seat 37 at the front end of the guide plate 31 is driven to move horizontally toward the object to be printed 52 by starting the pneumatic push rod 1 33, and the printing plate 57 is pressed by the printing plate 39. After the completion, the plate seat 37 is retracted to the initial position, and after the plate seat 37 and the printing plate 39 return to the initial position, the electric brush roller 25 is driven to rotate out of the ink dipping chamber 44 by starting the motor 23, and the ink is evenly applied to the raised text or mural on the surface of the printing plate 39 by the elastic ink coating sleeve 26. Then, the electric brush roller 25 is driven by the motor 23 to enter the ink dipping chamber 44 at the other end of the C-shaped ink fountain 41, and the printing plate 39 on the plate seat 37 is correspondingly waiting for the next printing plate 57 to be printed; finally, the printing plate 57 after the printing is completed is rotated clockwise by the body to be printed 52 to the right side of the printing cylinder 51, and the printing plate 57 is manually pulled out from the inner side of the body to be printed 52, thereby completing the processing process of automatic loading, automatic printing and manual discharge of the printing plate 57.

[0042] During this period, the printing cylinder 51 rotates clockwise without stopping under the drive of the DD motor 54, and with the cooperation of the automatic loading of the feeding assembly 6, the continuous printing processing of the printing plate 57 by the stamping assembly 3 can be realized, the printing efficiency is high, the loading speed is fast, and the safety hazards of slow manual loading and easy errors are solved. Only manual extraction of the printed printing plate 57 is required to complete the flow-type printing processing of the printing plate 57, the printing effect is high, and the printing quality is guaranteed.

[0043] By controlling the pneumatic push rod 2 63 to drive the carrier 64 to extend, the printing plate 57 mounted on the inclined support plate 641 reaches a path that coincides with the clockwise rotation of the first printing body. As the DD motor 54 drives the printing cylinder 51 to rotate clockwise between the two sets of third brackets 53, the printing plate 57 placed on the inclined support plate 641 is guided into the square groove by the side clamping plate 55 along the guide groove 644. After the printing plate 57 is successfully filled into the square groove, the pneumatic push rod 2 63 drives the carrier 64 to retract, and then a new printing plate 57 is taken out and placed on the inclined support plate 641, waiting to be automatically filled into the inner side of the next body 52 to be printed. In this way, the printing plate 57 can be automatically loaded on the inner side of the body 52 to be printed without stopping the printing assembly 5.

[0044] Based on Example 1, please refer to Figure 1 , Figure 4 , Figure 5 and Fig.11 As shown, a porous ink storage body 45 is embedded inside an ink dipping chamber 44 opened in the middle of the two free ends of the C-shaped ink fountain 41, and is used to temporarily store the ink transported by the ink supply tube 43. Branch ink plates 46 are fixedly connected to the upper and lower edges of the porous ink storage body 45, and the two branch ink plates 46 are designed as concentric circles, and the branch ink plates 46 are fitted on the curved wall of the ink dipping chamber 44; barbs 47 are connected to the two curved walls of the ink dipping chamber 44, and the number is two groups, and the whole is made of elastic metal material, and an ink absorbing flat tube 48 is embedded on the inner wall surface of the barb body 47, and the end of the ink absorbing flat tube 48 away from the barb body 47 is connected to the return pipe 42, wherein the cross-section of the barb body 47 is The surface is in the shape of a fishhook, and the hook edge of the barb body 47 is chamfered, wherein the spacing between the barb bodies 47 installed on the two curved walls of the ink dipping chamber 44 is slightly smaller than the maximum diameter of the elastic ink coating sleeve 26, so that the elastic ink coating sleeve 26 can be scraped against the barb bodies 47 when passing between the two rows of barb bodies 47, and the excess ink on the surface of the elastic ink coating sleeve 26 is scraped off, thereby preventing too much ink from being smeared on the printing plate 39, which causes the excess ink to diffuse on the printing plate 57 after the ink is pressed onto the printing plate 57, thereby ensuring that the ink on the printing plate 57 is evenly pressed and inked, and avoiding the occurrence of black spots or local thick ink on the printing plate 57.

[0045] When in use, the motor 23 drives the electric brush roller 25 with the help of the clamping plate frame 21, and makes a reciprocating rotation motion between the two ink dipping chambers 44 opened at the two free ends of the C-shaped ink fountain 41, so that no matter the electric brush roller 25 rotates clockwise to enter the ink dipping chamber 44 at the bottom port position of the C-shaped ink fountain 41, or rotates counterclockwise to enter the ink dipping chamber 44 at the bottom top port position of the C-shaped ink fountain 41, the elastic ink coating sleeve 26 can be dipped into a sufficient amount of ink to timely apply ink to the surface of the printing plate 39 located in front of the plate seat 37, thereby ensuring that there is sufficient ink on the surface of the printing plate 39 at all times and avoiding the problem of poor printing quality caused by lack of ink or insufficient ink.

[0046] While utilizing the branch ink plate 46 to expand the contact area between the barb body 47 and the elastic ink coating sleeve 26 on the electric brush roller 25, the electric brush roller 25 can also be started to drive the elastic ink coating sleeve 26 to rotate inside the ink dipping chamber 44, so as to evenly apply the ink on the elastic ink coating sleeve 26, thereby preventing the ink from excessively accumulating locally on the elastic ink coating sleeve 26, which would cause quality risks of ink diffusion in subsequent printing.

[0047] When the electric brush roller 25 drives the elastic ink coating sleeve 26 out of the inner cavity of the ink dipping chamber 44, and when the elastic ink coating sleeve 26 is rotated and carried out by the motor 23 and rubs against the barb bodies 47, the two rows of barb bodies 47 can make the elastic ink coating sleeve 26 rotate when it rubs against the barb bodies 47, so that excess ink on the surface of the elastic ink coating sleeve 26 can be uniformly scraped and collected into the barb bodies 47 by the barb bodies 47 under its own rotational movement, that is, the excess ink is scraped and collected into the grooves of the barb bodies 47, and then the scraped ink can be recovered into the C-shaped ink fountain 41 through the ink absorption flat tube 48 under the back-suction action of the reflux pipe 42, thereby realizing multiple scraping recovery of excess ink on the surface of the elastic ink coating sleeve 26, and effectively avoiding the diffusion of ink on the printing plate 39 and the printing plate 57.

[0048] The ink dipping chamber 44 opened in the two ports of the C-shaped ink fountain 41, and the ink supply function of the porous ink storage body 45 and the branch ink plate 46 cooperate to realize the bidirectional ink supply function of the ink supply assembly 4 to the elastic ink coating sleeve 26, which not only effectively improves the ink supply efficiency of the ink supply assembly 4 to the elastic ink coating sleeve 26, but also effectively isolates the ink supply environment separately on the inner side of the ink dipping chamber 44, avoiding the influence of foreign matter on the ink quality, and effectively avoids the problem of ink spillage when dipping ink. At the same time, the elastic ink coating sleeve 26 can be driven by the periodic and repeated rotation of the motor 23 to efficiently replenish ink for the printing plate 39, so that the printing plate 39 will not be out of ink during the continuous printing process of the printing plate 57, providing a continuous ink source for the continuous printing of the printing plate 57.

[0049] Based on the first and second examples, please refer to Figures 6 to 10 As shown, the side of the body 52 to be printed away from the printing cylinder 51 is symmetrically connected with side clamps 55, the number of which is two, and a square groove is formed between the two side clamps 55, a rubber pad 56 is fitted and installed in the middle of the side of the body 52 to be printed away from the printing cylinder 51, and the rubber pad 56 is integrally fitted and installed on the inner wall surface of the square groove, which is used to increase the resistance of the printing plate 57 when it is clamped in the square groove to prevent the printing plate 57 from easily slipping out of the square groove; the printing plate 57 is inserted in the square groove, and the printing plate 57 is embedded and installed in the square groove through the side clamps 55, and a positioning rod 7 is threadedly installed on the side wall surface of the third bracket 53 away from the DD motor 54, which is used to limit and block the extended end of the carrier member 64; the carrier member 64 includes an inclined support plate 641 installed at the telescopic end of the pneumatic push rod 2 63, a blocking bar 642 is fixedly connected to the middle of the top edge of the inclined support plate 641, and the top surface of the inclined support plate 641 is fitted with a stop bar 642. A rubber patch 643 is installed to prevent the printing plate 57 from sliding off easily when it is placed on the top surface of the inclined support plate 641. Guide grooves 644 are provided in the middle of the two wide edges of the inclined support plate 641, which can cooperate with the side clamping plates 55, so that the printing body 52 can be scraped away by the cooperation and guidance of the guide grooves 644 and the side clamping plates 55. A chamfered corner portion 645 is provided on the wide edge of the inclined support plate 641 close to the placement frame 62, and the bottom of the inclined support plate 641 close to the placement frame 62 is placed on the surface of the pneumatic push rod 63, and the telescopic end connection part of the pneumatic push rod 63 itself is also chamfered, which is convenient for the inclined support plate 641 to be close to the placement frame 62, and can be fitted on the surface of the pneumatic push rod 63 to smoothly guide it into the inner bottom of the placement frame 62, so as to quickly remove the printing plate 57 at the bottom of the placement frame 62.

[0050] When in use, when the printing plate 39 is imprinting the printing plate 57 on the second printing body, the pneumatic push rod 2 63 can be started to use the inclined support plate 641 to push the new printing plate 57 to the necessary path for the clockwise rotation of the first printing body. The clockwise rotation of the first printing body can take advantage of the situation to fill the printing plate 57 placed on the inclined support plate 641 into the square groove between the two side clamps 55, and under the semi-shielding effect of the baffle 642 on the top side of the printing plate 57, the entire printing plate 57 can completely enter the bottom of the square groove, and during this period, the pneumatic push rod 2 63 quickly retracts the inclined support plate 641, so that the baffle 642 quickly disengages from the obstruction of the top side of the printing plate 57, ensuring that after the printing plate 57 completely enters the inner side of the square groove, the front end of the baffle 642 also just disengages from the top edge of the printing plate 57, thereby realizing the automatic coordination and feeding of the feeding assembly 6 and the printing assembly 5.

[0051] Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

Claims

1. A printing device for preventing ink diffusion, characterized in that: The brush roller assembly comprises a frame and a brush roller assembly mounted on the frame, wherein the brush roller assembly comprises a clamping plate frame, a first bracket is mounted on the outer side of the clamping plate frame, a motor is arranged at one end of the first bracket away from the clamping plate frame, a thin rod is connected to the middle of one end of the motor close to the clamping plate frame, the thin rod is rotatably mounted with the first bracket through the motor, and the thin rod is bolt-mounted with the clamping plate frame; an electric brush roller is sleeved on the hoop end of the clamping plate frame, and an elastic ink coating sleeve is sleeved on the outer surface of the electric brush roller; It also includes a stamping assembly installed on the inner side of the brush roller assembly, the stamping assembly includes a guide plate, and the guide plate is installed on the side of the clamping plate frame away from the motor, a rectangular cavity is opened through the surface of the guide plate, a pneumatic push rod is inserted in the rectangular cavity, and the telescopic end of the pneumatic push rod is connected to the guide plate through the rectangular cavity; It also includes an ink supply assembly, which is assembled in the middle of the left end of the frame. The ink supply assembly includes a C-shaped ink fountain embedded in the middle of the left end of the frame, and the C-shaped ink fountain is arranged in a C shape as a whole. A return pipe is installed at the inner edge of the C-shaped ink fountain, and ink supply pipes are installed in parallel on the inner side of the C-shaped ink fountain. An ink dipping chamber is opened in the middle of the free end of the C-shaped ink fountain.

2. The printing ink diffusion prevention printing device according to claim 1, characterized in that: It also includes a printing assembly, which is installed on the top right side of the frame. The printing assembly includes a printing cylinder, and the outer surface of the printing cylinder is connected to the body to be printed in a circular array. The third bracket is symmetrically installed on both sides of the body to be printed, and the bottom of the third bracket is fixedly connected to the frame. A DD motor is fixedly installed on the third bracket, and the printing cylinder is rotatably installed with the third bracket through the DD motor.

3. The printing ink diffusion prevention printing device according to claim 2, characterized in that: It also includes a feeding assembly, which is installed on the edge of the frame. The feeding assembly includes a fourth bracket fixedly connected to the edge of the frame, the top of the fourth bracket is connected to a placement frame, a pneumatic push rod 2 is installed in the middle of the bottom end of the placement frame, and a carrier plate is telescopically installed at one end of the pneumatic push rod 2 away from the placement frame. The carrier plate can be extended and extended from the inner bottom of the placement frame through the pneumatic push rod 2.

4. The printing device for preventing ink diffusion according to claim 1, characterized in that: A second bracket is installed on the side of the guide plate away from the splint frame, and the bottom end of the second bracket is fixedly connected to the left side of the top end of the frame, cross bars are symmetrically connected to both sides of the pneumatic push rod, and one end of the cross bar away from the splint frame is fixedly connected to the second bracket, a partition plate is mounted on the end of the cross bar away from the second bracket, and the end of the cross bar away from the second bracket is inserted with a thin rod, and the thin rod can rotate in the middle of the cross bar, the partition plate blocks between the splint frame and the guide plate, and the guide plate is telescopically installed with the second bracket through the cooperation of the pneumatic push rod and the cross bar.

5. The printing device for preventing ink diffusion according to claim 4, characterized in that: One end of the guide plate away from the second bracket is fixedly connected to a plate seat, and clamping strips are symmetrically connected to the surface of the plate seat on both sides, and a printing plate is clamped on the surface of the plate seat through the clamping strips, and a threaded cylinder is fixedly connected to the middle of the top edge of one side of the plate seat facing the guide plate; A screw rod is installed on the internal thread of the threaded barrel, a clamping block is installed on the middle of the top edge of the plate seat away from the guide plate, and the clamping block is installed with the plate seat thread through the cooperation of the screw rod and the threaded barrel.

6. The printing device for preventing ink diffusion according to claim 1, characterized in that: A porous ink storage body is embedded in the inner side of the ink dipping chamber opened in the middle of the two free ends of the C-shaped ink fountain, and branch ink plates are fixedly connected to the upper and lower edges of the porous ink storage body, and the branch ink plates are fitted on the curved wall of the ink dipping chamber; The two curved walls of the ink dipping chamber are both connected with barb bodies, an ink absorbing flat tube is embedded and installed on the inner wall of the barb body, and one end of the ink absorbing flat tube away from the barb body is connected with the return pipe.

7. The printing device for preventing ink diffusion according to claim 2, characterized in that: The side clamping plates are symmetrically connected to the side of the printing body away from the printing cylinder, and a square groove is formed between the two side clamping plates. A rubber pad is fitted in the middle of the side of the printing body away from the printing cylinder, and the rubber pad is integrally fitted on the inner wall of the square groove. A printing plate is inserted in the square groove, and the printing plate is embedded in the square groove through side clamping plates.

8. The printing device for preventing ink diffusion according to claim 3, characterized in that: The carrier plate includes an inclined support plate installed at the two telescopic ends of the pneumatic push rod, a baffle is fixedly connected to the middle of the top edge of the inclined support plate, a rubber patch is fitted on the top surface of the inclined support plate, guide grooves are provided in the middle of the two wide edges of the inclined support plate, which can correspond to the side clamps, and a chamfered corner is provided on the wide edge of the inclined support plate close to the placement frame.

Images