阅读说明：本技术 一种具有调平功能的印刷机刮墨刀系统 (Printing machine doctor blade system with leveling function ) 是由 曹永民 于 2019-08-24 设计创作，主要内容包括：本发明公开了一种具有调平功能的印刷机刮墨刀系统,其结构包括刮墨刀结构、墨槽、传墨辊、印版滚筒、压印滚筒,墨槽中设有传墨辊,传墨辊位于印版滚筒斜下方,印版滚筒和传墨辊活动贴合,传墨辊的一侧安装有刮墨刀结构,印版滚筒和墨槽相对的顶端正中间设有压印滚筒,压印滚筒和印版滚筒紧贴,本发明通过刀片放置平台校准刮墨刀放置是否水平,进一步确保刮墨刀和印版滚筒的刀刃在同一水平线,不偏斜,实现刮墨刀刮取印版滚筒均匀,本发明刮墨刀采用三个螺纹旋钮均匀等距地固定在刀片放置平台上,刮墨刀安装时三个点受力均匀,进一步确保刀片放置平台和刮墨刀贴合度,防止刮墨刀局部扬起或有空隙,从而影响刮墨刀的分布。(The invention discloses a printing machine doctor blade system with a leveling function, which structurally comprises a doctor blade structure, an ink tank, an ink transfer roller, a printing plate cylinder and an impression cylinder, wherein the ink transfer roller is arranged in the ink tank and is positioned obliquely below the printing plate cylinder, the printing plate cylinder is movably attached to the ink transfer roller, the doctor blade structure is arranged on one side of the ink transfer roller, the impression cylinder is arranged in the middle of the opposite top ends of the printing plate cylinder and the ink tank, and the impression cylinder is attached to the printing plate cylinder, prevent the doctor blade from locally lifting or having a gap, thereby influencing the distribution of the doctor blade.)

1. A printing machine doctor blade system with leveling function is characterized in that: its structure includes doctor blade structure (1), china ink groove (2), distributor roller (3), plate cylinder (4), impression cylinder (5), be equipped with distributor roller (3) in china ink groove (2), distributor roller (3) are located plate cylinder (4) oblique below, plate cylinder (4) and distributor roller (3) activity laminating, doctor blade structure (1) is installed to one side of distributor roller (3), be equipped with impression cylinder (5) in the middle of plate cylinder (4) and the relative top of china ink groove (2) are positive, impression cylinder (5) and plate cylinder (4) are hugged closely.

2. A printer doctor blade system with leveling function according to claim 1, wherein: the scraping blade structure (1) is composed of a pressure pumping structure (7), a bottom plate (8) and a scraping blade (9), the pressure pumping structure (7) is configured on the side face of the bottom plate (8), the scraping blade (9) is installed on the bottom plate (8), and the tail end of the scraping blade (9) is tangent to the printing plate roller (4).

3. A printer doctor blade system with leveling function according to claim 2, wherein: the bottom plate (8) comprises a threaded knob (81), a blade clamping groove (82), a blade placing platform (83) and a plate body (84), a square notch is formed in the top end face of the plate body (84), the notch is communicated with one end of the bottom plate (8), the end face of the notch is the blade placing platform (83), the plate body (84) adjacent to the notch is provided with the blade clamping groove (82), and the top end face of the plate body (84) right opposite to the blade clamping groove (82) is provided with the threaded knob (81).

4. A printer doctor blade system with leveling function according to claim 3, wherein: the number of the threaded knobs (81) is three.

5. A printer doctor blade system with leveling function according to claim 2, wherein: the pumping structure (7) consists of a swing rod (7-1), a pulling rod (7-2), an air cavity (7-3), a straight pipe (7-4) and an air pipe (7-5), wherein the air cavity (7-3) is arranged at one end of a plate body (84), the pulling rod (7-2) which is movably matched with the air cavity (7-3) is arranged in the air cavity (7-3), the other end of the pulling rod (7-2) is connected with the swing rod (7-1), the end, away from the swing rod (7-1), of the air cavity (7-3) is movably matched with the air pipe (7-5), and the air pipe (7-5) and the straight pipe (7-4) are perpendicular to each other.

6. A printing press doctor blade system with levelling function as claimed in claim 5, wherein: the number of the straight pipes (7-4) is three, the three straight pipes (7-4) are uniformly distributed on the gas transmission pipe (7-5), and the tail ends of the straight pipes (7-4) are directly contacted with the knife face of the knife (9).

Technical Field

The invention relates to the field of printing equipment, in particular to a doctor blade system of a printing machine with a leveling function.

Background

In the printing process of the printing machine, in order to obtain uniform printing, the color is the same before and after, the difference between the viscosity and the good fluidity are avoided, a clean wood bar or a metal bar is used for uniformly stirring the ink in the ink tank, but when the ink is transferred to the printing plate cylinder by the ink transfer roller, the printing plate cylinder needs to be scraped, if the scraping blade is not fixed accurately, the vertical deviation is easy to occur, so that the left and right heights of the horizontal are not uniform, the scraping pressure is different, the ink distribution of the printing plate cylinder is not uniform, so that the printed finished product has uneven ink mark distribution, ink marks in some places are very light, and ink marks in some places are very deep and poor in quality.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a printing machine ink scraping blade system with leveling function, its structure includes ink scraping blade structure, china ink groove, distributor roller, plate cylinder, impression cylinder, be equipped with distributor roller in the china ink groove, distributor roller is located the oblique below of plate cylinder, plate cylinder and distributor roller activity laminating, the ink scraping blade structure is installed to one side of distributor roller, the top centre that plate cylinder and china ink groove are relative is equipped with the impression cylinder, impression cylinder and plate cylinder hug closely.

As a further optimization of the technical scheme, the doctor blade structure comprises a pumping structure, a bottom plate and a doctor blade, wherein the pumping structure is configured on the side surface of the bottom plate, the doctor blade is mounted on the bottom plate, and the tail end of the doctor blade is tangent to the plate cylinder.

As a further optimization of the technical scheme, the bottom plate comprises a threaded knob, a blade clamping groove, a blade placing platform and a plate body, a square notch is formed in the top end face of the plate body, the notch is communicated with one end of the bottom plate, the end face of the notch is the blade placing platform, the plate body adjacent to the notch is provided with the blade clamping groove, the top end face of the plate body right opposite to the blade clamping groove is provided with the threaded knob, and the threaded knob is in movable contact with the plate body.

As the further optimization of the technical scheme, the number of the thread knobs is three, and the thread knobs are uniformly and equidistantly distributed.

As a further optimization of the technical scheme, the pressure pumping structure comprises a swing rod, a drawing rod, an air cavity, a straight pipe and a gas pipe, wherein the air cavity is formed in one end of the plate body, the drawing rod is matched with the air cavity in a movable fit mode, the other end of the drawing rod is connected with the swing rod in a connecting mode, the end, away from the swing rod, of the air cavity is movably matched with the gas pipe, the gas pipe is perpendicular to the straight pipe, and the straight pipe is communicated with the gas pipe.

As a further optimization of the technical scheme, the number of the straight pipes is three, the three straight pipes are uniformly distributed on the gas conveying pipe, and the tail ends of the straight pipes are directly contacted with the knife face of the knife.

Advantageous effects

Compared with the prior art, the printing machine doctor blade system with the leveling function has the following advantages:

1. the invention further ensures that the edges of the ink scraping knife and the plate cylinder are in the same horizontal line and are not inclined, and realizes that the ink scraping knife scrapes the plate cylinder uniformly.

2. The doctor blade is uniformly and equidistantly fixed on the blade placing platform by adopting the three threaded knobs, and three points are uniformly stressed when the doctor blade is installed, so that the attaching degree of the blade placing platform and the doctor blade is further ensured, and the doctor blade is prevented from locally lifting or having gaps, so that the distribution of the doctor blade is influenced.

3. The invention adopts the drawing rod to control the air content in the air cavity, the straight pipe and the air conveying pipe, and uniformly and accurately adjusts the adsorption force of the scraper face, and the quantity design of the straight pipes further improves the uniform distribution of the adsorption force of the scraper, ensures that the pressure applied to the scraper is consistent, and ensures that the blades are always positioned on the same horizontal line and are scraped consistently.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic plan view of a printing press doctor blade system with leveling capability according to the present invention.

Fig. 2 is a schematic plan view of the doctor blade structure of the present invention.

FIG. 3 is a cross-sectional view of the doctor blade structure of the present invention.

FIG. 4 is a schematic top view of the doctor blade structure of the present invention.

Fig. 5 is a schematic cross-sectional view of a doctor blade configuration of the present invention in an unused state.

FIG. 6 is a schematic cross-sectional view of the doctor blade configuration of the present invention in use.

In the figure: the device comprises a doctor blade structure 1, an ink groove 2, an ink transfer roller 3, a printing plate cylinder 4, an impression cylinder 5, a pumping structure 7, a bottom plate 8, a doctor blade 9, a threaded knob 81, a blade clamping groove 82, a blade placing platform 83, a plate body 84, a swing rod 7-1, a drawing rod 7-2, an air cavity 7-3, a straight pipe 7-4 and an air conveying pipe 7-5.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.