阅读说明：本技术 一种封闭式圆网印花刮刀装置 (Closed rotary screen printing scraper device ) 是由 朱小鹏 贺跃东 孟非然 赵钰 张龙 刘刚 林晨 李芯雨 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种封闭式圆网印花刮刀装置,包括穿设在印刷圆网内的刮刀架,刮刀架侧壁上开设有出墨条形口,刮刀架侧壁上对应出墨条形口的位置处设置有匀墨板,匀墨板的两侧分别设置有固定刮刀片和活动刮刀片,固定刮刀片和活动刮刀片远离匀墨板的一端抵在印刷圆网内侧壁,固定刮刀片、活动刮刀片、印刷圆网内侧壁以及匀墨板之间形成墨腔,刮刀架连接有输墨管,输墨管连接有墨泵,墨泵驱动端连接有伺服电机。本发明的一种封闭式圆网印花刮刀装置,解决了现有技术中存在的油墨的供应采用开放形式,容易对外挥发变质,污染环境的问题。(The invention discloses a closed rotary screen printing scraper device, which comprises a scraper frame penetrating into a printing rotary screen, wherein an ink outlet strip-shaped opening is formed in the side wall of the scraper frame, an ink homogenizing plate is arranged at the position, corresponding to the ink outlet strip-shaped opening, on the side wall of the scraper frame, a fixed scraper blade and a movable scraper blade are respectively arranged at two sides of the ink homogenizing plate, one ends, far away from the ink homogenizing plate, of the fixed scraper blade and the movable scraper blade are abutted against the inner side wall of the printing rotary screen, an ink cavity is formed among the fixed scraper blade, the movable scraper blade, the inner side wall of the printing rotary screen and the ink homogenizing plate, the scraper frame is connected with an ink conveying pipe, the ink conveying pipe is connected with an ink pump, and the driving end of the ink pump is connected with a servo motor. The invention discloses a closed rotary screen printing scraper device, which solves the problems that ink supply in the prior art is in an open form, is easy to volatilize and deteriorate outwards, and pollutes the environment.)

1. The utility model provides a closed rotary screen printing scraper device, its characterized in that, including wear to establish scraper frame (2) in printing rotary screen (1), scraper has seted up out black bar mouth (18) on the scraper frame (2) lateral wall, scrape on the scraper frame (2) lateral wall and correspond the position department of going out black bar mouth (18) is provided with even ink board (8), the both sides of even ink board (8) are provided with fixed scraper blade (4) and activity scraper blade (6) respectively, the one end that even ink board (8) were kept away from to fixed scraper blade (4) and activity scraper blade (6) is supported in printing rotary screen (1) inside wall, form china ink chamber (5) between fixed scraper blade (4), activity scraper blade (6), printing rotary screen (1) inside wall and even ink board (8), scraper frame (2) are connected with defeated china ink pipe (15), defeated china ink pipe (15) are connected with china ink pump (16), the driving end of the ink pump (16) is connected with a servo motor (17) through an electric signal.

2. A closed rotary screen printing doctor apparatus according to claim 1, characterised in that the doctor holder (2) and the inking tube (15) are connected by means of a quick-change coupling (14).

3. A closed rotary screen printing scraper device according to claim 1, characterized in that the scraper frame (2) is connected at its two ends with a plug (9) and an ink feed tube (15), respectively.

4. The closed rotary screen printing scraper device according to claim 1, wherein the upper and lower side walls of the scraper frame (2) are respectively fixed with a scraper mounting upper support (11) and a scraper mounting lower support (12), and the scraper frame (2) is supported and fixed by the scraper mounting upper support (11) and the scraper mounting lower support (12).

5. A closed rotary screen printing scraper device according to claim 1, characterized in that a scraper blade pressing plate (3) is fixedly connected to one side of the ink distribution plate (8) through a bolt, and the fixed scraper blade (4) is pressed between the ink distribution plate (8) and the scraper blade pressing plate (3) through the scraper blade pressing plate (3).

6. A closed rotary screen printing scraper device according to claim 5, characterized in that the other side of the ink distribution plate (8) is provided with a U-shaped air bag clamping plate (7), the U-shaped opening of the air bag clamping plate (7) faces away from the ink distribution plate (8), an air bag (10) is arranged in the U-shaped air bag clamping plate (7), the scraper frame (2) is provided with a U-shaped extending end, the U-shaped opening of the extending end is opposite to the U-shaped opening of the air bag clamping plate (7), the air bag clamping plate (7) is placed in the extending end, and the air bag (10) is located in a space formed by the two U-shaped openings.

7. A closed rotary screen printing scraper device according to claim 1, wherein a pressure sensor (13) is further arranged at one end of the scraper frame (2) close to the ink feed pipe (15), and the pressure sensor (13) is electrically connected with the servo motor (17).

Technical Field

The invention belongs to the technical field of printing and dyeing equipment, and relates to a closed rotary screen printing scraper device.

Background

On a rotary screen printing device, a scraper device is one of indispensable devices of a rotary screen printing unit. Because of the peculiar structure of rotary screen printing device, traditional rotary screen printing scraper is open scraping ink structure, and scraper and rotary screen inner wall form one and store up the china ink district, and open form is adopted in the supply of printing ink, externally volatilizees easily and rottens, the polluted environment, and can not recycle, printing ink viscosity is uncontrollable.

Disclosure of Invention

The invention aims to provide a closed rotary screen printing scraper device, which solves the problems that ink supply in the prior art is in an open form, is easy to volatilize and deteriorate outwards, and pollutes the environment.

The technical scheme includes that the closed rotary screen printing scraper device comprises a scraper frame penetrating into a printing rotary screen, an ink strip-shaped port is formed in the side wall of the scraper frame, an ink homogenizing plate is arranged at the position, corresponding to the ink strip-shaped port, of the side wall of the scraper frame, a fixed scraper blade and a movable scraper blade are arranged on two sides of the ink homogenizing plate respectively, one ends, far away from the ink homogenizing plate, of the fixed scraper blade and the movable scraper blade are abutted to the inner side wall of the printing rotary screen, an ink cavity is formed among the fixed scraper blade, the movable scraper blade, the inner side wall of the printing rotary screen and the ink homogenizing plate, the scraper frame is connected with an ink conveying pipe, the ink conveying pipe is connected with an ink pump, the ink pump is driven by a servo motor, and a pressure sensor on the ink path controls the servo motor to adjust the rotating speed.

The present invention is also characterized in that,

the scraper frame and the ink conveying pipe are connected through a quick-change connector.

Both ends of the scraper frame are respectively connected with a plug and an ink conveying pipe.

The upper side wall and the lower side wall of the scraper frame are respectively fixed with a scraper installation upper support and a scraper installation lower support, and the scraper frame is fixed through the scraper installation upper support and the scraper installation lower support.

And one side of the even ink plate is fixedly connected with a scraper blade pressing plate through a bolt, and the fixed scraper blade is extruded between the even ink plate and the scraper blade pressing plate through the scraper blade pressing plate.

The opposite side of even china ink board is provided with the gasbag splint of U type, and the U type opening of gasbag splint is back to even china ink board, and the U type inner chamber of gasbag splint is provided with the gasbag, scrapes the end that stretches out that is provided with the U type on the knife rest, and the U type opening that stretches out the end is relative with the U type opening of gasbag splint, and gasbag splint are placed in stretching out the end, and the gasbag is located the space that two U types formed.

The scraper frame is provided with a pressure sensor at one end close to the ink conveying pipe, the pressure sensor is electrically connected with a servo motor, and the pressure sensor on the ink path controls the servo motor to adjust the rotating speed through electric signals.

The invention has the beneficial effects that:

1. the invention adopts a closed scraper structure, changes the open storage state of the ink in the circular screen, reduces the contact between the ink and the air, reduces the volatilization of the ink, and maintains the ink proportion unchanged during printing.

2. The invention adopts the servo motor to control the ink supply amount of the ink pump, realizes no ink accumulation residue in the cylinder, saves printing ink and is beneficial to cleaning the cylinder.

Drawings

FIG. 1 is a side view of a closed rotary screen printing doctor apparatus of the present invention;

FIG. 2 is a front view of a closed rotary screen printing doctor apparatus of the present invention;

FIG. 3 is a schematic structural diagram of an ink homogenizing plate in the closed rotary screen printing scraper device.

In the figure, 1, a printing cylinder, 2, a scraper frame, 3, a scraper blade pressing plate, 4, a fixed scraper blade, 5, an ink cavity, 6, a movable scraper blade, 7, an air bag clamping plate, 8, an ink homogenizing plate, 9, a plug, 10, an air bag, 11, a scraper installation upper support, 12, a scraper installation lower support, 13, a pressure sensor, 14, a quick-change connector, 15, an ink conveying pipe, 16, an ink pump, 17, a servo motor and 18, an ink outlet strip-shaped opening are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention discloses a closed rotary screen printing scraper device, which is structurally shown in figure 1 and comprises a scraper frame 2 arranged in a printing rotary screen 1 in a penetrating manner, wherein the side wall of the scraper frame 2 is provided with an ink strip-shaped port 18, an ink homogenizing plate 8 is arranged at the position, corresponding to the ink strip-shaped port 18, on the side wall of the scraper frame 2, two sides of the ink homogenizing plate 8 are respectively provided with a fixed scraper 4 and a movable scraper 6, one ends, far away from the ink homogenizing plate 8, of the fixed scraper 4 and the movable scraper 6 are abutted against the inner side wall of the printing rotary screen 1, the fixed scraper 4, the movable scraper 6, an ink cavity 5 is formed between the inner side wall of the printing rotary screen 1 and the ink homogenizing plate 8, the scraper frame 2 is connected with an ink conveying pipe 15, the ink conveying pipe 15 is connected with an ink pump 16, and the ink pump 16 is connected with a servo motor 17.

The doctor holder 2 and the ink feed tube 15 are connected by means of a quick-change coupling 14.

The upper side wall and the lower side wall of one end of the scraper frame 2 are respectively fixed with a scraper mounting upper support 11 and a scraper mounting lower support 12, and the scraper frame 2 is supported and fixed through the scraper mounting upper support 11 and the scraper mounting lower support 12.

Even ink board 8 one side is through bolt fixedly connected with scraper blade clamp plate 3, and fixed scraper blade 4 extrudes between even ink board 8 and scraper blade clamp plate 3 through scraper blade clamp plate 3.

The opposite side of even china ink board 8 is provided with the gasbag splint 7 of U type, and the U type opening of gasbag splint 7 is back to even china ink board 8, is provided with gasbag 10 in the U type of gasbag splint 7, scrapes the end that stretches out that is provided with the U type on the knife rest 2, and the U type opening that stretches out the end is relative with the U type opening of gasbag splint 7, and gasbag splint 7 is placed in stretching out the end, and gasbag 10 is located the space that two U types formed, and gasbag 10 is connected with the trachea.

The scraper frame 2 is also provided with a pressure sensor 13 at one end close to the ink conveying pipe 15, the pressure sensor 13 is electrically connected with a servo motor 17, and the electric signal of the pressure sensor 13 on the ink path controls the servo motor 17 to adjust the rotating speed.

The scraper frame 2 is tubular, and two ends of the scraper frame are respectively connected with a plug 9 and an ink conveying pipe 15.

The ink distributing groove on the ink distributing plate 8 is designed into a structure shown in fig. 3, and ink in the scraper frame 2 can be uniformly distributed in the ink cavity 5 in the printing width direction, so that the ink pressure of the whole ink cavity in the printing width direction is consistent.

The servo motor 17 drives the ink pump 16 to send ink into the scraper frame 2 through the ink conveying pipe 15, the ink flows out to the ink homogenizing plate 8 through the ink outlet strip-shaped port 18, the ink is uniformly extruded into the ink cavity 5 between the fixed scraper 4 and the movable scraper 6 through the ink homogenizing plate 8, the fixed scraper 4, the movable scraper 6 and the printing circular net 1 form a closed cavity 5, the printing ink is printed on a printing stock through a hollow pattern part on the printing circular net 1, the air bag 10 can quickly lock the movable scraper 6 through the pressurizing air bag clamping plate 7, one end of the scraper frame 2 is closed through the plug 9, one end of the scraper frame 2 is connected with the ink conveying pipe 15, the scraper frame 2 is connected with the printing stock through the quick-change connector 14 for convenient disassembly, the scraper frame 2 is fixed on the circular net printing machine frame through the scraper mounting upper support 11 and the scraper mounting lower support 12, the pressure sensor 13 mounted on the scraper frame 2 measures the ink pressure in the ink cavity 5, the servo motor 17 is adjusted to control the ink supply amount of the ink pump 16 so as to achieve the balance of the ink supply and demand.

The invention realizes the closed storage of the printing ink in the rotary screen by adopting a double-scraper-blade ink scraping mode, drives the ink pump in a servo mode, and accurately supplies the ink to achieve the balance of the supply and demand of the printing ink.