Screen printing device capable of accurately controlling ink amount and used for liquid crystal screen production
By designing a liquid crystal screen screen printing device including a screw, a piston and a depth identification plate, the problem of ink quantity cannot be accurately controlled in the prior art, and the precise control of ink quantity and the reduction of waste are achieved.
Patent Information
- Application Number
- CN202421464271.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Existing LCD screen screen printing devices cannot accurately control the amount of ink, resulting in ink waste, especially the waste of high-cost ink is even more serious.
A silk screening device including a placing table, a clamping base, a mounting base and an ink conveyor cylinder is designed. The piston is pushed by the screw, the ink is extruded from the ink cylinder, and the depth identification plate is used to accurately control the downward distance of the screw, thereby controlling the ink amount.
Accurate control of the ink quantity is achieved, ensuring that the amount of ink required for each screen printing is just right, and ink waste is avoided, especially with significant economic benefits for high-cost inks.
Smart Images
Figure CN222628883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal screen screen printing, and in particular to a liquid crystal screen screen production screen printing device capable of accurately controlling the amount of ink. Background Art
[0002] LCD screen screen printing is a printing technology that prints circuit patterns, logos, characters, etc. on the surface of the LCD screen, making the LCD screen more beautiful and improving the recognition of the LCD screen.
[0003] When some screen printing devices are performing screen printing, they first squeeze a certain amount of ink onto the screen printing plate, but most methods are to directly pour the ink in the ink tank onto the screen printing net. However, this method cannot control the amount of ink poured out, which can easily cause ink waste, especially for some higher-cost inks that require more precise control of the amount of ink poured out. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a screen printing device for LCD screen production that can accurately control the amount of ink.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A screen printing device for liquid crystal screen production capable of accurately controlling the amount of ink, comprising a placement table, a first mounting frame is arranged on one side of the upper surface of the placement table, a clamping seat is rotatably arranged on the first mounting frame, and a mounting seat is installed on the clamping seat;
[0007] The mounting seat includes a mounting plug plate, which is inserted and installed on the clamping seat. A second mounting frame is arranged on the front side of the mounting plug plate, an ink supply cylinder is clamped on the second mounting frame, a screw is rotated on the middle part of the upper end of the second mounting frame body, and a rotating seat is arranged on the upper end surface of the second mounting frame body, and a rotating block is rotatably arranged on the rotating seat.
[0008] In addition, a preferred structure is that a liquid crystal screen body is horizontally placed on the middle surface of the placement table, a screen printing plate is clamped on the clamping seat, and an ink supply cylinder is located above one side edge of the screen printing plate.
[0009] In addition, a preferred structure is that a depth identification plate is vertically fixedly connected to one side of the upper surface of the upper end frame of the second mounting frame, and a rubber gasket is attached to the bottom end surface of the upper end frame of the second mounting frame.
[0010] In addition, a preferred structure is that a socket is provided at the bottom of the upper frame body of the second mounting frame, and an ink supply cylinder is installed at the socket.
[0011] In addition, a preferred structure is that a piston is provided in the inner cavity of the ink supply cylinder, the bottom of the screw is provided in the inner cavity of the ink supply cylinder, the ink supply cylinder is divided into a cavity by the piston, a nipple is provided in the middle of the bottom end of the ink supply cylinder, and the nipple is connected to the cavity.
[0012] In addition, a preferred structure is that the bottom end of the screw rod abuts against the upper surface of the piston, and a rotary block is swivel-mounted on the screw rod.
[0013] In addition, a preferred structure is that the bottom of the rotary block is rotatably arranged on the rotary seat, a threaded hole is provided through the middle of the rotary block, and the threaded hole is clearance-matched with the screw rod.
[0014] The beneficial effects of the utility model are as follows: a mounting seat is arranged on a clamping seat for clamping a screen printing plate, an ink supply cylinder storing ink is clamped on the mounting seat, and then the screw rod moves downward so that the screw rod pushes the piston to squeeze out the ink in the cavity. The screw rod cooperates with the depth marking plate to reflect the downward movement distance, thereby achieving the effect of accurately controlling the amount of ink, ensuring that the ink squeezed onto the screen printing plate is the amount for one screen printing, and no waste of ink is caused. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the screen printing device;
[0016] Figure 2 This is a schematic diagram of the structure after the silk screen board is disassembled;
[0017] Figure 3 It is a schematic diagram of the structure after the mounting seat and the clamping seat are separated;
[0018] Figure 4 is a schematic diagram of the structure of the mounting base;
[0019] Figure 5 It is a schematic diagram of the structure without the ink delivery cylinder installed;
[0020] Figure 6 It is a schematic diagram of the structure after the ink delivery cylinder and the mounting seat are separated;
[0021] Figure 7 It is a schematic diagram of the structure of the ink cartridge.
[0022] In the figure: 1 a placing table, 2 a screen printing plate, 3 a first mounting frame, 4 a clamping seat, 5 a mounting seat, 51 a mounting plug plate, 52 a second mounting frame, 521 a socket, 53 a depth marking plate, 54 a rubber gasket, 6 a liquid crystal screen body, 7 an ink delivery cylinder, 71 a cavity, 72 a nipple, 73 a piston, 8 a screw, 9 a rotary block, 91 a threaded hole, and 10 a rotating seat. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] Reference Figure 1-7 A screen printing device for LCD screen production capable of accurately controlling the amount of ink comprises a placing table 1, a first mounting frame 3 is arranged on one side of the upper surface of the placing table 1, a clamping seat 4 is rotatably arranged on the first mounting frame 3, and a mounting seat 5 is installed on the clamping seat 4;
[0025] The mounting seat 5 includes a mounting plug plate 51, which is inserted and installed on the clamping seat 4. A second mounting frame 52 is arranged on the front side of the mounting plug plate 51, and an ink supply cylinder 7 is clamped on the second mounting frame 52. A screw 8 is rotated on the middle part of the upper end of the second mounting frame 52. A rotating seat 10 is arranged on the upper end surface of the second mounting frame 52, and a rotating block 9 is rotatably arranged on the rotating seat 10.
[0026] Among them, a liquid crystal screen body 6 is placed horizontally on the middle surface of the placement table 1, a screen printing plate 2 is clamped on the clamping seat 4, and an ink supply cylinder 7 is located above one side of the screen printing plate 2. The ink supply cylinder 7 can squeeze ink onto the screen printing plate 2.
[0027] Among them, a depth marking plate 53 is vertically fixedly connected to one side of the upper surface of the upper end frame of the second mounting frame 52, and a rubber gasket 54 is attached to the bottom surface of the upper end frame of the second mounting frame 52. The rubber gasket 54 can increase the friction so that the ink supply tube 7 can be better stuck in the socket 521.
[0028] In addition, a socket 521 is provided at the bottom of the upper frame of the second mounting frame 52, and the ink supply cylinder 7 is installed at the socket 521. The socket 521 facilitates the ink supply cylinder 7 to be locked at the socket 521 after the cylinder body is rotated.
[0029] Moreover, a piston 73 is provided in the inner cavity of the ink barrel 7, and the bottom of the screw 8 is provided in the inner cavity of the ink barrel 7. The ink barrel 7 is separated into a cavity 71 by the piston 73. A nipple 72 is provided in the middle of the bottom end of the ink barrel 7. The nipple 72 is connected to the cavity 71. The screw 8 resists the piston 73 and pushes the piston 73 downward to squeeze the ink in the cavity 71 out of the nipple 72.
[0030] Moreover, the bottom end of the screw 8 abuts against the upper surface of the piston 73, and a rotary block 9 is screwed on the screw 8. The bottom of the rotary block 9 is rotatably set on the rotating seat 10. A threaded hole 91 is opened through the middle of the rotary block 9. The threaded hole 91 is clearance-matched with the screw 8. The rotation of the rotary block 9 can synchronously rotate the screw 8 downward.
[0031] In the present embodiment, during the production of LCD screens, when the LCD screens need to be screen-printed, the LCD screen body 6 is first horizontally placed on the upper surface of the placement table 1, and then the clamping seat 4 is rotated so that the screen printing plate 2 is pressed against the LCD screen body 6, and then the disposable ink cylinder 7 filled with ink can be installed on the mounting seat 5, and the ink cylinder 7 is inserted upward from the bottom of the second mounting frame 52 to the socket 521, and is lower than the lower surface of the second mounting frame 52. At this time, the screw 8 is located in the cavity of the ink cylinder 7, and the bottom end of the screw 8 is lower than the rotary block 9. Then, by rotating the ink cylinder 7, the upper end of the ink cylinder 7 is rotated and clamped into the socket 521, and the ink cylinder 7 can be better clamped under the extrusion of the rubber gasket 54.
[0032] When it is necessary to squeeze ink onto the screen of the screen printing plate 2, the rotary block 9 is rotated, and the rotary block 9 rotates on the rotating seat 10. At the same time, the rotary block 9 can drive the screw 8 to rotate, so that the screw 8 can rotate downward on the mounting seat 5, pushing the piston 73 slowly downward. Based on the pressure of the ink liquid, the ink in the cavity 71 will be squeezed out from the nipple 71 and drip onto the screen of the screen printing plate 2. This principle is consistent with the principle of the syringe. Then, the top of the screw 8 can be compared with the marking line on the depth marking plate 53 to see how far the screw 8 has moved downward. For each fixed distance it moves, the amount of ink squeezed out can be calculated, thereby achieving the effect of accurately controlling the amount of ink, ensuring that the ink squeezed onto the screen printing plate 2 is the amount for one screen printing, and no waste is caused. After squeezing out appropriate ink, a scraper can be used for screen printing. After the ink supply cylinder 7 has squeezed out the ink, a new ink supply cylinder 7 can be replaced, and the replacement method is also very convenient.
[0033] In the utility model, a mounting seat 5 is provided on a clamping seat 4 for clamping the screen printing plate 2, an ink supply cylinder 7 storing ink is clamped on the mounting seat 5, and then the screw rod 8 moves downward so that the screw rod 8 pushes the piston 73 to squeeze out the ink in the cavity 71. The screw rod 8 cooperates with the depth marking plate 53 to reflect the downward movement distance, so as to achieve the effect of accurately controlling the amount of ink, ensuring that the ink extruded onto the screen printing plate 2 is the amount for one screen printing, and no waste of ink is caused.
[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A screen printing device for liquid crystal screen production capable of accurately controlling the amount of ink, comprising a placement table (1), characterized in that: A first mounting frame (3) is provided on one side of the upper surface of the placement table (1), a clamping seat (4) is rotatably provided on the first mounting frame (3), and a mounting seat (5) is installed on the clamping seat (4); The mounting seat (5) comprises a mounting plug plate (51), the mounting plug plate (51) is plugged and mounted on the clamping seat (4), a second mounting frame (52) is arranged on the front side of the mounting plug plate (51), an ink supply cylinder (7) is clamped on the second mounting frame (52), a screw rod (8) is rotatably arranged in the middle of the upper end of the frame body of the second mounting frame (52), a rotating seat (10) is arranged on the upper end surface of the frame body of the second mounting frame (52), and a rotating block (9) is rotatably arranged on the rotating seat (10).
2. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 1, characterized in that: A liquid crystal screen body (6) is horizontally placed on the middle surface of the placement table (1), a screen printing plate (2) is clamped on the clamping seat (4), and an ink supply cylinder (7) is located above one side edge of the screen printing plate (2).
3. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 1, characterized in that: A depth marking plate (53) is vertically fixedly connected to one side of the upper surface of the upper frame body of the second mounting frame (52), and a rubber gasket (54) is attached to the bottom surface of the upper frame body of the second mounting frame (52).
4. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 3, characterized in that: The bottom of the upper frame of the second mounting frame (52) is provided with a socket (521), and an ink supply cylinder (7) is installed at the socket (521).
5. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 4, characterized in that: The inner cavity of the ink supply cylinder (7) is provided with a piston (73), the bottom of the screw rod (8) is arranged in the inner cavity of the ink supply cylinder (7), the ink supply cylinder (7) is separated into a cavity (71) by the piston (73), and a nipple (72) is arranged in the middle of the bottom end of the ink supply cylinder (7), and the nipple (72) is connected with the cavity (71).
6. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 5, characterized in that: The bottom end of the screw rod (8) abuts against the upper surface of the piston (73), and a rotary block (9) is rotatably arranged on the screw rod (8).
7. A screen printing device for LCD production capable of accurately controlling the amount of ink according to claim 6, characterized in that: The bottom of the rotary block (9) is rotatably arranged on the rotary seat (10), and a threaded hole (91) is provided through the middle of the rotary block (9), and the threaded hole (91) is clearance-matched with the screw rod (8).