Multi-channel printing ink scraper and screen printing equipment
By designing a multi-channel ink scraper, the problem that the existing silk screening process requires multiple screen printing in multiple color pattern printing is solved, and the pattern of multiple colors is achieved simultaneously, which improves the screen printing efficiency and productivity.
Patent Information
- Application Number
- CN202421514788.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing silk screen printing process can only screen print patterns of the same color at a time, resulting in multiple screen printings required in various patterns and colors, which increases time and labor costs and reduces productivity.
A multi-channel ink scraper is designed with multiple ink channels inside. Each channel can inject ink of different colors, and it can be scraped and squeezed on the screen printing screen through the scraper head, so as to achieve the screen printing of multiple colors at the same time.
Through the use of multi-channel ink scrapers, multiple colors of pattern printing can be completed simultaneously in a screen printing process, greatly improving the screen printing efficiency, reducing time and labor costs, and improving productivity.
Smart Images
Figure CN222780133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to ink screen printing technology, in particular to a multi-channel ink scraper and screen printing equipment. Background Art
[0002] With the rapid development of society, consumers have more and more requirements for the types of car screens, and the patterns on car touch screens are generally formed on the glass cover through silk screen printing.
[0003] Silk screen printing, also known as screen printing, is a major printing method in stencil printing. Silk screen printing is a printing method that transfers ink to the substrate through a screen printing plate to form the same image as the original. It uses the basic principle that the mesh of the screen printing plate is permeable to ink, while the mesh of the non-image part is impermeable to ink. Silk screen printing has strong adaptability and can be printed on various flat, curved, spherical and concave-convex substrates, and is not limited by the texture of the substrate.
[0004] The ink scraper is an indispensable tool in the screen printing process. It is mainly used to scrape the ink on the screen so that it leaks onto the substrate. Specifically, it controls the amount and uniformity of the ink. By squeezing the ink or glue, it is evenly distributed on the pattern to be printed on the printing plate, forming a clear and full printing effect. At the same time, the scraper can also prevent the ink or glue from remaining or accumulating on the printing plate, ensuring the stability and reliability of the printing quality.
[0005] Conventional silk-screen printing technology can only print patterns of the same color each time. When the colors of the patterns are different, multiple silk-screen printings are required according to the number of pattern colors to produce samples with multiple color patterns. This will increase time and labor costs, and the longer process will also reduce the yield of production. Utility Model Content
[0006] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a multi-channel ink scraper which can screen-print patterns of multiple colors at the same time.
[0007] The utility model provides a silk-screen printing device, comprising the above-mentioned multi-channel ink scraper.
[0008] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0009] A multi-channel ink scraper comprises a scraper body, wherein a scraper head is arranged at the lower side of the scraper body; a plurality of ink channels are arranged in the scraper body, each ink channel has an ink inlet and an ink outlet, and the ink outlet of each ink channel is opened on the scraper head.
[0010] Furthermore, the scraper body includes a first surface and a second surface that are arranged opposite to each other, and each ink channel is opened on the first surface of the scraper body.
[0011] Furthermore, the scraper head is arranged obliquely from the second surface to the first surface.
[0012] Furthermore, the scraper body is also provided with a fixing structure for being installed and fixed with the ink scraping robot.
[0013] Furthermore, the fixing structure includes a plurality of fixing screw holes.
[0014] Furthermore, an ink channel is provided between every two adjacent fixing screw holes.
[0015] A screen printing device comprises a printing table, a screen printing screen and an ink scraping device, wherein
[0016] The printing table is provided with a silk screen positioning jig and a screen positioning jig, the silk screen positioning jig is used to carry and position the substrate, and the screen positioning jig is used to carry and position the silk screen;
[0017] The screen printing plate is loaded on the screen positioning fixture of the printing table and covers the substrate in the screen printing positioning fixture;
[0018] The ink scraping device is located above the printing table, and includes an ink scraping robot, a fixed plate and the above-mentioned multi-channel ink scraper. The multi-channel ink scraper is installed and fixed on the fixed plate, and the fixed plate is installed and fixed on the ink scraping robot.
[0019] Furthermore, the ink scraping device also includes an ink return knife, which is connected to the ink scraping robot and is arranged in parallel with the multi-channel ink scraper along the screen printing direction of the screen printing screen.
[0020] Furthermore, the screen printing equipment also includes an ink supply device, which includes a plurality of ink cartridges, one ink cartridge corresponds to an ink channel in the multi-channel ink scraper; each ink cartridge is connected to an ink inlet of the corresponding ink channel.
[0021] Furthermore, the ink supply device also includes a plurality of flow control valves, each of which is connected between a corresponding ink cartridge and an ink channel.
[0022] The utility model has the following beneficial effects: the multi-channel ink scraper of the utility model is provided with a plurality of ink channels in the scraper body. During screen printing, ink of different colors can be injected into each ink channel. The ink in each ink channel flows from the corresponding ink outlet to the scraper head, so as to be scraped and squeezed onto the screen printing screen by the scraper head to form patterns of different colors respectively. Patterns of multiple colors can be screen-printed at the same time, thereby greatly improving the screen printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a three-dimensional structural diagram of the multi-channel ink scraper provided by the utility model.
[0024] Figure 2 This is a side structural diagram of the multi-channel ink scraper provided by the utility model.
[0025] Figure 3 The present invention is a schematic structural diagram of the screen printing equipment provided by the present invention.
[0026] Figure 4 The utility model provides a structural schematic diagram of a fixed plate and a multi-channel ink scraper in the screen printing equipment. DETAILED DESCRIPTION
[0027] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] Embodiment 1
[0032] like Figure 1 As shown, a multi-channel ink scraper includes a scraper body 331, and a scraper head 332 is provided on the lower side of the scraper body 331; a plurality of ink channels 333 are provided in the scraper body 331, each ink channel 333 has an ink inlet and an ink outlet, and the ink outlet of each ink channel 333 is opened on the scraper head 332.
[0033] The multi-channel ink scraper of the utility model is provided with a plurality of ink channels 333 in the scraper body 331. During screen printing, inks of different colors can be injected into each ink channel 333. The inks in each ink channel 333 flow from the corresponding ink outlets to the scraper head 332, so as to be scraped flat on the screen printing screen by the scraper head 332 to form patterns of different colors respectively. Patterns of multiple colors can be screen-printed at the same time, thereby greatly improving the screen printing efficiency.
[0034] The ink inlet of each ink channel 333 can be designed to be opened on the scraper body 331 according to the specific structure of the multi-channel ink scraper and the specific structure of the ink scraping robot that installs and fixes the multi-channel ink scraper. In this embodiment, the ink inlet of each ink channel 333 is opened on the other side of the scraper body 331 opposite to the scraper head 332, that is, the upper side of the scraper body 331.
[0035] like Figure 2 As shown, the scraper body 331 is a plate-like structure or a sheet-like structure, including a first surface 335 and a second surface 336 arranged opposite to each other, and each ink channel 333 is opened on the first surface 335 of the scraper body 331, that is, each ink channel 333 is formed by opening a plurality of grooves on the first surface 335 of the scraper body 331. When the multi-channel ink scraper is installed and fixed on the ink scraping robot, the ink scraping robot performs side sealing on each groove on the first surface 335 of the scraper body 331, so as to enclose each groove together with the scraper body 331 to form the ink channel 333.
[0036] The scraper head 332 is inclined from the second surface 336 to the first surface 335 so as to be inclined relative to the screen printing plate during screen printing, and to scrape the ink flowing out of the ink outlets of each ink channel 333 onto the screen printing plate when moving along the screen printing direction.
[0037] The scraper body 331 is further provided with a fixing structure 334 for being mounted and fixed to the ink scraping robot. The multi-channel ink scraper is mounted and fixed to the ink scraping robot via the fixing structure 334 on the scraper body 331 .
[0038] In this embodiment, the fixing structure 334 includes a plurality of fixing screw holes, and is installed and fixed with the ink scraping robot by arranging fixing screws in each fixing screw hole and tightening each fixing screw to fix the ink scraping robot.
[0039] Preferably, an ink channel 333 is provided between each two adjacent fixing screw holes, so that both sides of each ink channel 333 are tightened and fixed to the ink scraping robot by the fixing screws, thereby improving the stability and stress uniformity of the ink scraping robot in enclosing and sealing each ink channel 333.
[0040] Embodiment 2
[0041] like Figure 3 and 4 As shown, a screen printing device includes a printing table 10, a screen printing screen 20 and an ink scraping device 30, wherein
[0042] The printing table 10 is provided with a screen printing positioning fixture 11 and a screen plate positioning fixture 12. The screen printing positioning fixture 11 is used to carry and position the substrate 50, and the screen plate positioning fixture 12 is used to carry and position the screen printing screen 20.
[0043] The screen printing screen 20 is loaded on the screen positioning fixture 12 of the printing table 10 and covers the substrate 50 in the screen printing positioning fixture 11;
[0044] The ink scraping device 30 is located above the printing table 10, and includes an ink scraping robot 31, a fixed plate 32 and the multi-channel ink scraper 33 described in Example 1. The multi-channel ink scraper 33 is installed and fixed on the fixed plate 32, and the fixed plate 32 is installed and fixed on the ink scraping robot 31.
[0045] In this embodiment, the multi-channel ink scraper 33 is provided with a plurality of grooves on the first surface 335 of the scraper body 331. When the multi-channel ink scraper 33 is installed and fixed on the fixed plate 32, the first surface 335 of the scraper body 331 faces the fixed plate 32, so that after the multi-channel ink scraper 33 and the fixed plate 32 are installed and fixed, the scraper body 331 and the fixed plate 32 jointly enclose the various grooves to form the ink channel 333.
[0046] During screen printing, the multi-channel ink scraper 33 is first installed and fixed on the fixed plate 32, and then the fixed plate 32 is installed and fixed on the ink scraping robot 31, and then different colors of ink are injected into each ink channel 333; then the substrate 50 and the screen printing screen 20 are loaded into the screen printing positioning fixture 11 and the screen positioning fixture 12 respectively, so that the screen printing screen 20 covers the substrate 50; then the screen printing equipment is started, and the ink scraping robot 31 drives the multi-channel ink scraper 33 to move relative to the screen printing screen 20 in the screen positioning fixture 12, so as to scrape the different colors of ink in each ink channel 333 onto the screen printing screen 20, and the different colors of ink are transferred to the substrate 50 in the screen printing positioning fixture 11 through the mesh pattern on the screen printing screen 20, and finally different colors of patterns are formed on the carrier.
[0047] The ink scraping robot 31 can be, but is not limited to, a two-axis robot, a three-axis robot, a four-axis robot or other motion mechanisms that can achieve multi-axis motion.
[0048] The ink scraping device 30 further includes an ink return blade 34 , which is connected to the ink scraping robot 31 and is arranged in parallel with the multi-channel ink scraper 33 along the screen printing direction of the screen printing screen 20 .
[0049] The ink return knife 34 moves synchronously with the multi-channel ink scraper 33. During screen printing, the ink scraping robot 31 first tilts the multi-channel ink scraper 33 and the ink return knife 34 to one side, so that the multi-channel ink scraper 33 contacts the screen printing plate 20, while the ink return knife 34 does not contact the screen printing plate 20, and then drives the multi-channel ink scraper 33 and the ink return knife 34 to move along the screen printing direction, so that the multi-channel ink scraper 33 flows out of each of its ink channels 333. The ink is scraped flat on the silk screen 20, and then the multi-channel ink scraper 33 and the ink return knife 34 are tilted toward the other side, so that the ink return knife 34 contacts the silk screen 20, while the multi-channel ink scraper 33 does not contact the silk screen 20, and then the multi-channel ink scraper 33 and the ink return knife 34 are driven to move in the opposite direction of silk screen printing, so that the ink return knife 34 scrapes the remaining ink on the silk screen 20 back to the edge of the screen, so that it can be reused in the next silk screen printing.
[0050] Each ink channel 333 in the multi-channel ink scraper 33 can be injected with ink manually or automatically.
[0051] Preferably, the screen printing equipment further includes an ink supply device 40 , which includes a plurality of ink cartridges 41 , one ink cartridge 41 corresponding to one ink channel 333 in the multi-channel ink scraper 33 ; each ink cartridge 41 is connected to an ink inlet of the corresponding ink channel 333 .
[0052] In this embodiment, the corresponding ink cartridges 41 and ink channels 333 are connected via a hose 42 .
[0053] Preferably, the ink supply device 40 also includes a plurality of flow control valves 43, each flow control valve 43 being connected between a corresponding ink cartridge 41 and an ink channel 333, and the on-off time of each flow control valve 43 can control the amount of ink supplied by the ink supply device 40 to each ink channel 333 in the multi-channel ink scraper 33.
[0054] Each flow control valve 43 can be set at the connection between the corresponding ink cartridge 41 and the hose 42, or at the connection between the corresponding hose 42 and the ink channel 333, or in the middle of the corresponding hose 42, and the on and off of each flow control valve 43 can be controlled by a PLC controller.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A multi-channel ink scraper, comprising a scraper body, wherein a scraper head is provided on the lower side of the scraper body; characterized in that: A plurality of ink channels are arranged in the scraper body, each of which has an ink inlet and an ink outlet, and the ink outlet of each ink channel is arranged on the scraper head.
2. The multi-channel ink scraper according to claim 1, characterized in that: The scraper body comprises a first surface and a second surface which are arranged opposite to each other, and each ink channel is opened on the first surface of the scraper body.
3. The multi-channel ink scraper according to claim 2, characterized in that: The scraper head is arranged obliquely from the second surface to the first surface.
4. The multi-channel ink scraper according to claim 1, characterized in that: The scraper body is also provided with a fixing structure for being installed and fixed with an ink scraping robot.
5. The multi-channel ink scraper according to claim 4, characterized in that: The fixing structure includes a plurality of fixing screw holes.
6. The multi-channel ink scraper according to claim 5, characterized in that: An ink channel is arranged between every two adjacent fixing screw holes.
7. A screen printing device, characterized in that: It includes a printing table, a silk screen screen and an ink scraping device, wherein The printing table is provided with a silk screen positioning jig and a screen positioning jig, the silk screen positioning jig is used to carry and position the substrate, and the screen positioning jig is used to carry and position the silk screen; The screen printing plate is loaded on the screen positioning fixture of the printing table and covers the substrate in the screen printing positioning fixture; The ink scraping device is located above the printing table, and includes an ink scraping robot, a fixed plate and the multi-channel ink scraper according to claim 1, the multi-channel ink scraper is installed and fixed on the fixed plate, and the fixed plate is installed and fixed on the ink scraping robot.
8. The screen printing device according to claim 7, characterized in that: The ink scraping device also includes an ink return knife, which is connected to the ink scraping manipulator and is arranged in parallel with the multi-channel ink scraper along the screen printing direction of the screen printing screen.
9. The screen printing device according to claim 7, characterized in that: The screen printing device also includes an ink supply device, which includes a plurality of ink cartridges, one ink cartridge corresponding to an ink channel in the multi-channel ink scraper; each ink cartridge is connected to an ink inlet of the corresponding ink channel.
10. The screen printing device according to claim 9, characterized in that: The ink supply device further comprises a plurality of flow control valves, each of which is connected between a corresponding ink box and an ink channel.