CN218399777U

CN218399777U - Ink scraping device of printing machine

Info

Publication number: CN218399777U
Application number: CN202120713193.0U
Authority: CN
Inventors: 何朝阳; 李卫民; 徐劲
Original assignee: HUNAN HEXIANG PACKAGING CO Ltd
Current assignee: HUNAN HEXIANG PACKAGING CO Ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2023-01-31
Anticipated expiration: 2031-04-08

Abstract

The ink scraping device of the printing machine comprises a printing plate roller, the ink scraping device comprises a main scraper and an auxiliary scraper, the main scraper is fixed on one side of the printing plate roller, and the main scraper is abutted to the printing plate roller; the auxiliary scraper is independently arranged below the main scraper and is abutted against the printing plate roller, the ink scraping angle of the auxiliary scraper is 120-150 degrees, and the ink scraping angle of the auxiliary scraper is adjusted through a worm and gear mechanism. The utility model discloses the structure is ingenious, can thoroughly solve and draw black phenomenon.

Description

Ink scraping device of printing machine

Technical Field

The utility model relates to a printing trade technical field specifically is a printing machine wiping arrangement.

Background

In the circulation process of the printing plate, the ink tank and the ink barrel, part of the ink is dried to form ink residue due to the reasons of fast drying, easy skinning and the like. Meanwhile, most of the pigment and resin of the ink passing through the blank part of the plate roller are scraped by the ink scraping device, but a small part of the resin is still coated on the blank part of the plate roller, and if the ink film of the part is not dissolved again, the part is accumulated, and is scraped into the ink by the scraper again after reaching a certain degree, so that ink residue is also formed.

The scraper is usually arranged at the upper end of a printing roller in the existing ink scraping device of the printing machine, and ink is scraped through an acute angle, small ink residue cannot be scraped in time by the ink scraping mode, the ink residue can only be clamped between the printing roller and the scraper to rub until the ink residue is completely worn, ink lines are easily formed in the blank part of the printing roller in the wearing process, the phenomenon is commonly called ink drawing, the phenomenon occurs most in products with large blank area in the intaglio process of the unit type rotary intaglio printing machine, and the product quality is greatly influenced. In the existing production process, the ink drawing phenomenon can be basically relieved only by methods of filtering ink, adjusting the drying speed of the ink and the like, but the ink drawing phenomenon cannot be completely avoided.

The scraper angle of the ink scraping device of the unit type rotary gravure printing machine is 20-80 degrees, small ink residue cannot be scraped in time by the acute-angle ink scraping, and the ink cannot be clamped between the printing roller and the scraper until the small ink residue is completely abraded, so that ink lines are easily formed in the blank part of the printing roller, which is popular and popular, the phenomenon that products with large blank areas are large in the intaglio printing process is particularly large, and the product quality and consumption are influenced. The phenomenon can be relieved only by methods of filtering ink, adjusting the drying speed of the ink and the like in the existing production process, but the phenomenon cannot be completely eradicated. In addition, some small dot products cannot easily adjust the drying speed, and the generation of ink residue is more difficult to avoid, so improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a printing machine wiping arrangement to solve the shortcoming in the above-mentioned background art.

The utility model discloses the technical problem who solves adopts following technical scheme to realize:

the ink scraping device of the printing machine comprises a printing plate roller, the ink scraping device comprises a main scraper and an auxiliary scraper, the main scraper is fixed on one side of the printing plate roller, and the main scraper is abutted to the printing plate roller; the auxiliary scraper is independently arranged below the main scraper and abutted against the printing plate roller, the ink scraping angle of the auxiliary scraper is 120-150 degrees, and the ink scraping angle of the auxiliary scraper is adjusted through a worm and gear mechanism.

Further, the ink scraping angle of the main scraper is 20-80 degrees.

Furthermore, mounting plates which are fixedly connected are arranged at two ends of the main scraper, a balance rod is arranged below the main scraper, and the balance rod is fixedly connected with the auxiliary scraper; two ends of the balancing rod are respectively connected with the two mounting plates, and one end of the balancing rod is also connected with the worm and gear mechanism and is driven by the worm and gear mechanism to rotate.

Further, the worm gear mechanism comprises a worm gear and a worm, and the center of the worm gear is fixedly connected with the balance rod; one end of the worm is meshed with the worm wheel, the other end of the worm is provided with an adjusting handle, the adjusting handle rotates to drive the worm to rotate, and the worm rotates to drive the worm wheel to rotate.

Further, the worm is also provided with a corresponding limiting assembly.

Furthermore, the balance rod is fixedly connected with the auxiliary scraper through a connecting plate assembly, the connecting plate assembly comprises a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected with the balance rod, the auxiliary scraper is installed on the second connecting plate, and the first connecting plate is detachably and fixedly connected with the second connecting plate.

Has the advantages that: printing machine wiping arrangement, its can be abundant effectual shovel remove the china ink sediment of adhesion on printing plate roller, with main scraper and vice scraper with set angle combination, the china ink sediment breaks away from printing plate roller very easily under the scouring action of printing ink behind the vice scraper, except that a small amount of china ink membrane and the printing ink that the screen cave was filled on printing plate roller thereafter, does not have other impurity almost, reachs main scraper department once more and strikes off totally easily, thoroughly stops to draw black phenomenon. Just the utility model discloses the scraping ink angularly adjustable of well vice scraper, the flexibility is stronger.

Drawings

Fig. 1 is a schematic diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic side view of the preferred embodiment of the present invention.

Fig. 3 is a schematic structural view of the ink scraping device according to the preferred embodiment of the present invention.

Wherein: 1. a main scraper; 2. a secondary scraper; 3. mounting a plate; 4. a first connecting plate; 5. a second connecting plate; 6. a balancing bar; 7. an adjustment handle; 8. a worm; 9. a worm gear; 10. a printing plate roller; 11. and a limiting component.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figure below.

Referring to fig. 1 to 3, in the preferred embodiment of the ink scraping device of the printing press, in the present embodiment, the printing press includes a printing plate roller 10, the ink scraping device includes a main blade 1 and a sub blade 2, the main blade 1 is fixed to one side of the printing plate roller 10, the main blade 1 abuts against the surface of the printing plate roller 10, the ink scraping angle of the main blade is 20 to 80 °, and the main blade scrapes ink at an acute angle within the predetermined angle range.

The two ends of the main scraper 1 are provided with fixedly connected mounting plates 3, the mounting plates 3 can also be mounting walls, a balance rod 6 is arranged below the main scraper 1, the two ends of the balance rod 6 are respectively connected with the two mounting plates 3, and one end of the balance rod 6 is further connected with a worm gear mechanism and rotates under the driving of the worm gear mechanism. The outer surface of the balancing rod 6 is fixedly connected with the auxiliary scraper 2; thus, the secondary blade 2 can be rotated with the rotation of the balance bar 6. Specifically, the balance bar 6 is fixedly connected with the auxiliary scraper 2 through a connecting plate assembly, the connecting plate assembly comprises a first connecting plate 4 and a second connecting plate 5, the first connecting plate 4 is fixedly connected with the balance bar 6, the auxiliary scraper 2 is installed on the second connecting plate 5, and the first connecting plate 4 and the second connecting plate 5 can be detachably and fixedly connected. Therefore, in actual production, the auxiliary scraper 2 can be flexibly replaced according to different maintenance or production requirements, and the operation is convenient and fast.

The auxiliary scraper 2 is independently arranged below the main scraper 1, the auxiliary scraper 2 is abutted against the printing plate roller 10, the ink scraping angle of the auxiliary scraper 2 is 120-150 degrees, and the ink scraping angle of the auxiliary scraper 2 is adjusted through a worm and gear mechanism. The worm and gear mechanism comprises a worm wheel 9 and a worm 8, and the center of the worm wheel 9 is fixedly connected with one end of the balance bar 6; one end of the worm 8 is meshed with the worm wheel 9, the other end of the worm 8 is provided with an adjusting handle 7, the adjusting handle 7 rotates to drive the worm 8 to rotate, the worm 8 rotates to drive the worm wheel 9 to rotate, the worm wheel 9 rotates to drive the balance rod 6 to rotate, and then the auxiliary scraper 6 is driven to adjust the ink scraping angle. After the angle adjustment is finished, the worm 8 is limited through the limiting component 11, the worm 8 is prevented from further rotating or reversing under the action of inertia, and therefore the ink scraping angle of the auxiliary scraper 2 is accurately adjusted. The stop assembly 11 may consist of a plurality of nuts adapted to the worm 8.

In an actual production example, after the main doctor 1 is installed, the adjustment handle 7 is rotated to rotate the auxiliary doctor 2 to a predetermined angle, so that the auxiliary doctor is tightly attached to the printing plate roller 10 and forms an included angle of 150 ° with the printing plate roller 10, a certain pressure is formed between the auxiliary doctor 2 and the printing plate roller 10, and the ink scraping included angle of the main doctor 1 and the printing plate roller 10 at this time is an acute angle of 60 °. In the rotating process of the printing plate roller 10, small ink residues in the printing ink are adhered to the printing plate roller 10 and are brought to the auxiliary scraper 2 through the high-speed rotation of the printing plate roller, the scraping angle of the auxiliary scraper 2 is an obtuse angle of 150 degrees, most of the printing ink is scraped by the auxiliary scraper 2 and forms fluid pressure at the position, the printing ink continuously flows downwards at the position, and the printing ink impurities meet the auxiliary scraper 2 at the position, are simultaneously scraped into the printing ink and flow back to an ink tank along with the printing ink, so that the printing ink impurities cannot be clamped under the auxiliary scraper 2 to form ink dragging. The surface of the printing plate roller 10 after the primary ink shoveling by the auxiliary scraper 2 still has a small amount of ink film and ink is filled in the screen holes, at the moment, the ink in the blank part of the main scraper 1 is scraped clean and the ink in the screen holes is remained at the same time when the main scraper 1 arrives, so that the blank part of the printing plate roller 10 is clean, and ink lines (ink is usually pulled) which are difficult to clean due to the fact that ink residues flow into the sharp corner of the main scraper 1 and the printing plate roller 10 can be avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The ink scraping device of the printing machine comprises a printing plate roller and is characterized by comprising a main scraper and an auxiliary scraper, wherein the main scraper is fixed on one side of the printing plate roller and is abutted against the printing plate roller; the auxiliary scraper is independently arranged below the main scraper and abutted against the printing plate roller, the ink scraping angle of the auxiliary scraper is 120-150 degrees, and the ink scraping angle of the auxiliary scraper is adjusted through a worm and gear mechanism.

2. The printing press inking unit according to claim 1, wherein the main doctor has a doctor angle of 20 to 80 °.

3. The scraping device of the printing machine as claimed in claim 1, wherein the two ends of the main scraper are provided with fixedly connected mounting plates, a balancing rod is arranged below the main scraper, and the balancing rod is fixedly connected with the auxiliary scraper; two ends of the balancing rod are respectively connected with the two mounting plates, and one end of the balancing rod is also connected with the worm and gear mechanism and is driven by the worm and gear mechanism to rotate.

4. The printing press ink scraping device of claim 3, wherein the worm gear mechanism comprises a worm wheel and a worm, and the center of the worm wheel is fixedly connected with the balance bar; one end of the worm is meshed with the worm wheel, the other end of the worm is provided with an adjusting handle, the adjusting handle rotates to drive the worm to rotate, and the worm rotates to drive the worm wheel to rotate.

5. The printing press wiping device of claim 4, wherein the worm is further provided with a corresponding stop assembly.

6. The printing press inking unit of claim 3, wherein the balance bar is fixedly connected to the secondary scraper by a connecting plate assembly, the connecting plate assembly comprising a first connecting plate and a second connecting plate, the first connecting plate being fixedly connected to the balance bar, the secondary scraper being mounted on the second connecting plate, the first connecting plate being removably and fixedly connected to the second connecting plate.