CN219583747U

CN219583747U - Pressure control device for ink return knife of silk screen printing machine scraper

Info

Publication number: CN219583747U
Application number: CN202320669836.5U
Authority: CN
Inventors: 刘祖锋
Original assignee: Shenzhen Qianhua Technology Co ltd
Current assignee: Shenzhen Qianhua Technology Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-25
Anticipated expiration: 2033-03-30

Abstract

The utility model provides a pressure control device for a doctor ink return knife of a screen printer, which is characterized by comprising a printing module and a screen plate module; the screen plate module comprises a sliding rail and a printing screen plate arranged below the sliding rail, the printing module is arranged above the printing screen plate, the printing module comprises a mounting frame which is connected below the sliding rail in a sliding manner, a first connecting frame and a second connecting frame are vertically connected to the mounting frame in a sliding manner, a scraper is fixed below the first connecting frame, and an ink return knife is fixed below the second connecting frame; a first motor and a second motor which are vertically arranged are fixedly connected on the mounting frame, a first screw rod is fixedly connected on an output shaft of the first motor, the first screw rod is in threaded connection with the first connecting frame, a second screw rod is fixedly connected on an output shaft of the second motor, the second screw is in threaded connection with the second connecting frame, and the pressure control device for the ink return knife of the scraper of the screen printer can enable the scraper and the ink return knife to accurately move, so that printing precision is improved.

Description

Pressure control device for ink return knife of silk screen printing machine scraper

Technical Field

The utility model relates to the field of printing equipment, in particular to a pressure control device for a doctor ink return knife of a screen printing machine.

Background

Screen printers are generally referred to as screen printers. The screen printer is a machine using a screen plate (screen plate) Shi Yin, and belongs to one type of printer. When in printing work, the scraper of the printing component, the ink returning knife and the screen plate are in relatively up-and-down moving contact, so that the printing function is realized.

When the doctor blade, the ink returning knife and the screen plate move up and down, the air cylinder is adopted to push the doctor blade and the ink returning knife, the distance between the doctor blade and the ink returning knife and the screen plate is adjusted, the pressure between the doctor blade and the ink returning knife and the screen plate is adjusted, the precision of the screen printing with the structure is very high in relation to the air pressure stability of the air cylinder, and if the air pressure is unstable, the printing precision is easily reduced.

Disclosure of Invention

Based on the above-mentioned current situation, the main purpose of the present utility model is to provide a pressure control device for a doctor blade ink return knife of a screen printing machine, so as to solve the problem that if the air pressure is unstable, the accuracy of screen printing is easily reduced due to the great relationship between the air pressure stability of an air cylinder.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a pressure control device for a doctor ink return knife of a screen printer comprises a printing module and a screen plate module;

the screen plate module comprises a sliding rail and a printing screen plate arranged below the sliding rail, the printing module is arranged above the printing screen plate, the printing module comprises a mounting frame which is connected below the sliding rail in a sliding manner, a first connecting frame and a second connecting frame are vertically connected to the mounting frame in a sliding manner, a scraper is fixed below the first connecting frame, and an ink return knife is fixed below the second connecting frame;

the mounting rack is fixedly connected with a first motor and a second motor which are vertically arranged, an output shaft of the first motor is fixedly connected with a first screw rod, the first screw rod is in threaded connection with the first connecting rack, an output shaft of the second motor is fixedly connected with a second screw rod, and the second screw rod is in threaded connection with the second connecting rack.

Preferably, two supports are fixed below the sliding rail, the lower parts of the two supports are connected with fixing frames in a sliding mode along the vertical direction, the printing screen is fixed between the two fixing frames, a third motor is vertically fixedly connected in the two supports, a third screw rod is downwards arranged on an output shaft of the third motor in a fixedly connected mode, and the third screw rod is in threaded connection with the fixing frames.

Preferably, the mounting frame comprises two vertical plates and a connecting plate, the two vertical plates are connected to the sliding rail in a sliding manner, the two vertical plates are arranged along the extending direction of the sliding rail, the two connecting plates are fixedly connected to two sides of the vertical plates, and the first motor and the second motor are fixedly connected to one side, close to each other, of the two vertical plates respectively;

the first link includes relative perpendicular first board and the first mounting panel that slides that sets up, the second link includes relative perpendicular second board and the second mounting panel that slides that sets up, first board with the second slides the board and slides along vertical direction respectively and connect in two the link plate, just the scraper rigid coupling in the first board that slides, return the black sword rigid coupling in the second board that slides, first screw rod threaded connection in the first mounting panel, second screw rod threaded connection in the second mounting panel.

Preferably, the fixing frame comprises two vertical plates, a transverse plate and a clamping frame, wherein the transverse plate is fixedly connected between the two vertical plates, the two vertical plates are connected to two sides of the bracket in a sliding manner along the vertical direction, one side of the transverse plate is fixedly connected with a third mounting plate, and the third screw is connected to the third mounting plate;

the clamping frames are fixedly connected with the two vertical plates, the printing screen is arranged between the two clamping frames, and in a working state, the clamping frames are fixed with the printing screen.

The beneficial effects of the utility model are as follows: when the first motor and the second motor work, the first screw rod and the second screw rod can be driven to rotate respectively, and then the first connecting frame and the second connecting frame can be driven to stably move up and down, so that the scraper and the ink return knife are driven to stably move up and down, the defect that air pressure is excessively depended on by adopting air cylinder driving is avoided, the scraper and the ink return knife can be accurately moved by controlling the work of the first motor and the second motor, and the printing precision is improved.

Other advantages of the present utility model will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.

Drawings

Fig. 1 is a schematic perspective view of a pressure control device for a doctor blade ink return blade of a screen printing machine.

Fig. 2 is a cross-sectional view showing a first motor of the doctor blade return blade pressure control device of the screen printer of the present utility model.

Fig. 3 is an enlarged schematic view of section a.

Reference numerals illustrate:

1. a printing module; 11. a mounting frame; 111. a vertical plate; 112. a splice plate; 113. a first motor; 1131. a first screw; 114. a second motor; 1141. a second screw; 12. a first connection frame; 121. a first slip plate; 122. a first mounting plate; 13. a second connecting frame; 131. a second slip plate; 132. a second mounting plate; 2. a screen module; 21. a slide rail; 211. a bracket; 212. a third motor; 2121. a third screw; 22. printing a screen; 23. a fixed frame; 231. a riser; 232. a cross plate; 2321. a third mounting plate; 233. a clamping frame; 3. a scraper; 4. and (5) returning the ink knife.

Detailed Description

The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in order to avoid obscuring the present utility model, and in order to avoid obscuring the present utility model, well-known methods, procedures, flows, and components are not presented in detail.

Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1, the utility model provides a pressure control device for a doctor blade ink return knife of a screen printer, which comprises a printing module 1 and a screen module 2, wherein the printing module 1 is arranged above the screen module 2, and the printing module 1 and the screen module can vertically move so as to adjust the relative position, control the pressure between the printing module and the screen module and maintain the quality of the screen printing.

Referring to fig. 1 and 2, the screen module 2 includes a fixedly disposed slide rail 21 and a printing screen 22 disposed under the slide rail 21. The printing module 1 is arranged above the printing screen 22 and comprises a mounting frame 11 which is connected below a sliding rail 21 in a sliding manner, a first connecting frame 12 and a second connecting frame 13 are arranged on the mounting frame 11, a scraper 3 is fixed below the first connecting frame 12, an ink return knife 4 is fixed below the second connecting frame 13, and in operation, the mounting frame 11 slides on the sliding rail 21 to drive the scraper 3 and the ink return knife 4 to move.

The mounting frame 11 comprises two vertical plates 111 and a connecting plate 112, the two vertical plates 111 are slidably connected below the sliding rail 21 along the extending direction of the sliding rail 21, the two vertical plates 111 are arranged along the extending direction of the sliding rail 21, the two connecting plates 112 are fixedly connected to two sides of the two vertical plates 111, and a first motor 113 and a second motor 114 which are vertically arranged are respectively estimated and fixedly connected to one sides of the two vertical plates 111, which are close to each other.

The first connecting frame 12 comprises a first sliding plate 121 and a first mounting plate 122 which are vertically arranged relatively, the second connecting frame 13 comprises a second sliding plate 131 and a second mounting plate 132 which are vertically arranged relatively, the first sliding plate 121 and the second sliding plate 131 are respectively connected to the two connecting plates 112 in a sliding manner along the vertical direction, the scraper 3 is fixedly connected with the first sliding plate 121, the ink return knife 4 is fixedly connected with the second sliding plate 131, and the scraper 3 and the ink return knife 4 can move in the vertical direction. The output shaft of the first motor 113 is fixedly connected with a first screw 1131, the first screw 1131 is in threaded connection with the first mounting plate 122, the output shaft of the second motor 114 is fixedly connected with a second screw 1141, and the second screw 1141 is in threaded connection with the second mounting plate 132. When the first motor 113 and the second motor 114 work, the first screw 1131 and the second screw 1141 can be driven to rotate respectively, and then the first connecting frame 12 and the second connecting frame 13 can be driven to move up and down stably, so that the scraper 3 and the ink return knife 4 are driven to move up and down stably, the defect that air pressure is excessively depended on by adopting air cylinder driving is avoided, and the scraper 3 and the ink return knife 4 can move accurately by controlling the work of the first motor 113 and the second motor 114, so that the printing precision is improved.

The structure of the mounting frame 11, the first connecting frame 12 and the second connecting frame 13 is not necessarily the above structure, and the three may be an integral structure. As long as the first motor 113 and the second motor 114 are fixed on the mounting frame 11, and the first screw 1131 and the second screw 1141 are respectively in threaded connection with the first connecting frame 12 and the second connecting frame 13, the first connecting frame 12 and the second connecting frame 13 can be driven to stably move up and down along with the rotation of the first screw 1131 and the second screw 1141.

Referring to fig. 1 and 3, two brackets 211 are disposed below the sliding rail 21, the two brackets 211 are located at two ends of the sliding rail 21, under the working state, the two brackets 211 are fixed on the sliding rail 21, and the connection structure between the specific brackets 211 and the sliding rail 21 is in the prior art, which is not described herein. The fixing frames 23 are provided below both brackets 211, and the fixing frames 23 can be fixed to the printing screen 22. The fixing frame 23 includes two risers 231, a cross plate 232 and holding frames 233, the cross plate 232 is fixed between the two risers 231, the two risers 231 slide along the vertical direction and are connected to two sides of the support 211, the holding frames 233 are fixedly connected with the two risers 231, the printing screen 22 is installed between the two holding frames 233 in a working state, and the two holding frames 233 are relatively fixed with the printing screen 22.

The third motor 212 which is vertically arranged is fixedly connected in the two brackets 211, the output shaft of the third motor 212 is downwards arranged and fixedly connected with the third screw 2121, one side of the transverse plate 232 is fixedly connected with the third mounting plate 2321, the third screw 2121 is in threaded connection with the third mounting plate 2321, the third motor 212 works and can drive the third screw 2121 to rotate so as to drive the fixing frame 23 to move up and down, so that the screen printing frame can be driven to move up and down, and the distance between the screen printing frame and the printing module 1 can be stably adjusted. The fixing frame 23 may be an integral structure, as long as the fixing frame 23 is slidably connected to the bracket 211 along the vertical direction, and the third screw 2121 is screwed to the fixing frame 23, and the fixing frame 23 may be driven to move up and down along with the rotation of the third screw 2121.

The implementation principle of the utility model is as follows: when the first motor 113 and the second motor 114 work, the first screw 1131 and the second screw 1141 can be driven to rotate respectively, and then the first connecting frame 12 and the second connecting frame 13 can be driven to move up and down stably, so that the scraper 3 and the ink return knife 4 are driven to move up and down stably, the defect that air pressure is excessively depended on by adopting air cylinder driving is avoided, and the scraper 3 and the ink return knife 4 can move accurately by controlling the work of the first motor 113 and the second motor 114, so that the printing precision is improved.

Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.

It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the utility model, are intended to be included within the scope of the appended claims.

Claims

1. The pressure control device for the ink return knife of the screen printer scraper is characterized by comprising a printing module and a screen plate module;

2. The screen printer scraper ink return knife pressure control device according to claim 1, wherein two supports are fixed below the sliding rail, fixing frames are connected below the two supports in a sliding manner along the vertical direction, the printing screen is fixed between the two fixing frames, a third motor is vertically fixedly connected in the two supports, a third screw is downwards and fixedly connected to an output shaft of the third motor, and the third screw is in threaded connection with the fixing frames.

3. The screen printer scraper ink return knife pressure control device according to claim 1, wherein the mounting frame comprises two vertical plates and a connecting plate, the two vertical plates are connected to the sliding rail in a sliding manner, the two vertical plates are arranged along the extending direction of the sliding rail, the two connecting plates are fixedly connected to two sides of the vertical plates, and the first motor and the second motor are fixedly connected to one side of the two vertical plates, which are close to each other, respectively;

4. The screen printer scraper ink return knife pressure control device according to claim 2, wherein the fixed frame comprises two vertical plates, a transverse plate and a clamping frame, the transverse plate is fixedly connected between the two vertical plates, the two vertical plates are connected to two sides of the bracket in a sliding manner along the vertical direction, one side of the transverse plate is fixedly connected with a third mounting plate, and the third screw is connected to the third mounting plate;