CN-122008684-A - LCD screen printing device with static elimination function

CN122008684ACN 122008684 ACN122008684 ACN 122008684ACN-122008684-A

Abstract

The invention provides an LCD screen printing device with a static eliminating function, which relates to the field of LCD manufacturing and comprises an LCD printing device body and a mounting device, wherein the LCD printing device body comprises a scraper device, the mounting device comprises a plurality of connecting frames, the connecting frames comprise vertical plates and mounting plates connected with the lower ends of the vertical plates, vertical strip-shaped holes are formed in the vertical plates, screw holes I corresponding to the vertical strip-shaped holes are formed in the scraper device, non-nut sections of screw rods I penetrate through the vertical strip-shaped holes to be connected into the corresponding screw holes I, non-vertical strip-shaped holes are formed in the mounting plates, non-nut sections of screw rods II penetrate through the non-vertical strip-shaped holes to be connected onto a shell of a pulse static eliminating rod, and a control device is respectively and electrically connected with the LCD printing device body and the pulse static eliminating rod. The connecting frame integrates the dual functions of fine adjustment of the height, the horizontal or the angle direction, is convenient to process and manufacture, does not need to carry out large-scale reconstruction on the existing printing equipment, and is convenient to install and maintain.

Inventors

DENG MAO
MENG XIANGLONG
ZHOU WEIHUA
HUANG SI
LI WENTAO
Jiang Jiejin
REN FEIYAN

Assignees

湖南飞优特电子科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260401

Claims (8)

1. The LCD screen printing device with the static electricity eliminating function comprises an LCD printing device body (1), wherein the LCD printing device body (1) comprises a scraper device (11), and is characterized in that the LCD screen printing device further comprises: The mounting device (3) comprises a plurality of connecting frames (31), wherein each connecting frame (31) comprises a vertical plate (311) and a mounting plate (312) connected with the lower end of the vertical plate (311), a vertical strip-shaped hole (3111) is formed in the vertical plate (311), a first threaded hole corresponding to the vertical strip-shaped hole (3111) is formed in the scraper device (11), a non-nut section of a first screw rod (313) penetrates through the corresponding first threaded hole (3111) to be connected into the corresponding first threaded hole, a non-vertical strip-shaped hole (3121) is formed in the mounting plate (312), and a non-nut section of a second screw rod (314) penetrates through the non-vertical strip-shaped hole (3121) to be connected onto a shell (21) of the pulse static eliminating rod (2); and the control device is electrically connected with the LCD printing device body (1) and the pulse static eliminating rod (2) respectively.
2. The LCD screen printing apparatus with static electricity eliminating function according to claim 1, wherein the LCD printing apparatus body (1) further comprises: the upper end of the printing bench (12) is provided with a printing platform (121), and a workpiece placing seat (13) is arranged on the printing platform (121); The first lifting device (14) is arranged at the upper end of the platform of the printing bench (12), the first lifting device (14) is positioned at the rear side of the workpiece placement seat (13), the lifting end of the first lifting device (14) is connected with a connecting seat (19), the connecting seat (19) is connected with a left-right translation device (16), the moving end of the left-right translation device (16) is connected with a second lifting device (15), the lifting end of the second lifting device (15) is connected with a scraper device (11), the scraper device (11) comprises a third lifting device (112), the third lifting device (112) is connected to the lifting end of the second lifting device (15), and the lifting end of the third lifting device (112) is connected with a scraper (111); The connecting frame (18), the connecting frame (18) is connected to the connecting seat (19), and the scraper (111) is positioned at the inner side of the connecting frame (18); And the screen printing screen (17), wherein the screen printing screen (17) is connected to the inner side of the connecting frame (18).
3. The LCD screen printing apparatus with static electricity eliminating function as set forth in claim 1, wherein the length direction of said non-vertical strip-shaped hole (3121) is left and right.
4. An LCD screen printing apparatus with static electricity eliminating function according to claim 1, wherein said connection frame (31) is connected to the advancing direction side of the doctor blade device (11) in the printing moving direction.
5. An LCD screen printing device with static electricity eliminating function according to claim 1, wherein the distance between the installation position of the pulse static electricity eliminating rod (2) and the doctor blade (111) along the printing movement direction is 5-15cm.
6. The LCD screen printing apparatus with static electricity eliminating function according to claim 1, further comprising: The storage device is used for storing a reference mapping model, wherein the reference mapping model is an ideal ionization parameter interval corresponding to each common scraper printing speed shifting interval under the corresponding theoretical printing pressure condition of the reference LCD substrate; the speed detection device is used for detecting the printing speed of the scraper; The electrostatic detection device is used for detecting the electrostatic voltage on the surface of the ionized LCD substrate after the silk screen test; a displacement detecting device for detecting a moving distance of the doctor blade along a printing moving direction; the control device comprises a test control module, which comprises: The process parameter acquisition unit is used for acquiring a theoretical printing pressure interval of the substrate to be tested and a theoretical doctor printing shift speed in a non-static elimination state; The measurement and control unit I is used for selecting a plurality of test speeds in the printing moving speed of the theoretical scraper, controlling the left-right translation device to start and stably run to each test speed, and respectively determining the stable displacement corresponding to each test speed based on the displacement data of the scraper along the printing moving direction detected by the displacement detection device; The analysis unit I is used for determining a plurality of matched ideal ionization parameter intervals from the reference mapping model based on the theoretical doctor printing moving speed of the substrate to be tested, and generating a plurality of test parameter groups based on the theoretical printing pressure interval median of the substrate to be tested, the theoretical doctor printing moving speed median and each matched ideal ionization parameter interval median; the measurement and control unit II is used for performing screen printing test control on the substrate test piece to be tested based on each test parameter set; and the analysis unit II is used for determining the current target ionization parameter based on the detection result of the silk-screen test control process of the measurement and control unit II and the stable displacement corresponding to each test speed.
7. The LCD screen printing device with static electricity eliminating function as defined in claim 6, wherein the control device is respectively connected with the storage device, the speed detection device, the static electricity detection device and the displacement detection device in a signal way.
8. The LCD screen printing apparatus with static electricity eliminating function as set forth in claim 6, wherein the determining unit comprises: the analysis subunit I is used for constructing a matrix of 'test scraper printing shift speed-ionization parameter-ionization detection device detection value' based on the detection result of the silk-screen printing test control process of the measurement and control unit II and marking stable displacement corresponding to the test scraper printing shift speed; the analysis subunit II is used for determining the current target ionization parameters based on the matrix; When the substrates to be tested are printed in batches formally, the control device controls the pulse static eliminating rod (2) to work based on the current target ionization parameters.

Description

LCD screen printing device with static elimination function Technical Field The invention relates to the technical field of LCD (liquid crystal display) manufacturing, in particular to an LCD screen printing device with a static electricity eliminating function. Background In the LCD manufacturing process, screen printing is one of the key processes, and is mainly used for printing functional materials such as an alignment layer, conductive silver paste and the like on the surface of a glass substrate. However, at the moment when the screen is separated from the substrate after printing is completed, strong static electricity is generated due to rapid peeling and friction between the two. Such static electricity causes the following problems: 1. And the adsorption pollution is that dust and particles in the surrounding environment can be adsorbed by static electricity, so that the printed pattern is defective, and the product yield is reduced. 2. Pattern deformation-electrostatic forces may disturb the incompletely cured printing paste, resulting in blurring of the pattern edges and distortion of the lines. The ITO substrate is scratched, namely, the substrate is directly scratched by high-strength separated static electricity, so that the substrate is defective. 4. Equipment damage-static electricity accumulated for a long time can cause damage to precise electronic components of equipment and even cause potential safety hazards. 5. Personnel safety, high voltage static electricity may cause electric shock injury to operators. The existing screen printing static eliminating device, such as a liquid crystal circuit board printing device for synchronously eliminating static electricity disclosed in publication No. CN214294976U, has the following problems: The static eliminator and the scraper are fixed on the same synchronous support, and only can move horizontally with the scraper, so that the height and the horizontal distance between the static eliminator and the scraper cannot be adjusted according to different printing requirements. Disclosure of Invention The invention provides an LCD screen printing device with a static electricity eliminating function, which is used for solving the technical problems set forth in the background technology. In order to solve the technical problems, the invention discloses an LCD screen printing device with a static electricity eliminating function, which comprises an LCD printing device body, wherein the LCD printing device body comprises a scraper device, and is characterized in that the LCD screen printing device further comprises: The device comprises a plurality of connecting frames, wherein each connecting frame comprises a vertical plate and a mounting plate connected with the lower end of the vertical plate, a vertical strip-shaped hole is formed in the vertical plate, a first threaded hole corresponding to the vertical strip-shaped hole is formed in the scraper device, a non-nut section of a first screw rod penetrates through the vertical strip-shaped hole to be connected into the corresponding first threaded hole, a non-vertical strip-shaped hole is formed in the mounting plate, and a non-nut section of a second screw rod penetrates through the non-vertical strip-shaped hole to be connected onto a shell of the pulse static electricity eliminating rod; And the control device is electrically connected with the LCD printing device body and the pulse static electricity eliminating rod respectively. Preferably, the LCD printing device body further includes: The upper end of the printing bench is provided with a printing platform, and a workpiece placing seat is arranged on the printing platform; The first lifting device is arranged at the upper end of the platform of the printing bench, the first lifting device is positioned at the rear side of the workpiece placing seat, the lifting end of the first lifting device is connected with a connecting seat, the connecting seat is connected with a left-right translation device, the moving end of the left-right translation device is connected with a second lifting device, the lifting end of the second lifting device is connected with a scraper device, the scraper device comprises a third lifting device, the third lifting device is connected with the lifting end of the second lifting device, and the lifting end of the third lifting device is connected with a scraper; The connecting frame is connected to the connecting seat, and the scraper is positioned at the inner side of the connecting frame; and the screen printing screen is connected to the inner side of the connecting frame. Preferably, the length direction of the non-vertical strip-shaped hole is the left-right direction. Preferably, the connecting frame is connected to the advancing direction side of the doctor device in the printing movement direction. Preferably, the pulse static eliminating rod is installed at a distance of 5-15cm from the doctor blade along the