Printing positioning device
By designing a symmetric Y-axis moving mechanism and movable printing module in a screen printing press, using elastic connection ends and oblique positioning structures, the problem of plastic plate movement under right angle positioning is solved, and the printing quality and pattern position accuracy is achieved and stability.
Patent Information
- Application Number
- CN202422734937.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-11-11
AI Technical Summary
During the plastic board positioning process, existing screen printing machines are easily affected by friction and cause the plastic board to move, affecting the printing quality.
Design a printing positioning device, adopting a symmetrical Y-axis moving mechanism and a removable movable printing module, including an elastic connection end, an elastic bending part and an oblique positioning structure, to ensure the centering positioning of the plastic plate during the printing process and avoid Friction influence.
The accurate positioning of the plastic board and the stable positioning between the printing assembly and the board are achieved, ensuring printing quality and pattern position consistency during subsequent die cutting, and avoiding text and pattern scratches caused by negative pressure.
Smart Images
Figure CN222223711U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screen printing machines, and more specifically to a printing positioning device. Background Art
[0002] A screen printing machine is a machine that uses a screen printing plate to print. It is a type of printing machine and is widely used in the printing and production of various texts and images. Screen printing refers to using a silk screen as a base and making a screen printing plate with images through a photosensitive platemaking method. Screen printing consists of five major elements: a screen printing plate, a scraper, ink, a printing table, and a substrate. The screen frames of the screen printing plates on the market are all flat screen frames. Printing is based on the basic principle that the mesh holes of the image part of the screen printing plate can pass through the ink, while the mesh holes of the non-image part cannot pass through the ink. When printing, pour ink at one end of the screen printing plate, use a scraper to apply a certain pressure to the ink part on the screen printing plate, and move at a constant speed toward the other end of the screen printing plate. During the movement, the ink is squeezed from the mesh holes of the image part by the scraper onto the substrate.
[0003] At present, in the process of production and processing of plastic labels, multiple groups of texts and patterns are usually evenly printed on the surface of the plastic plate to explain the information of the product. After printing, when the texts and patterns are solidified, they are cut by a die-cutting machine to form multiple finished plastic labels. The printing process can be screen-printed by a screen printer. Since such plastic plates are mainly used to produce plastic labels, the specifications and sizes of the plastic plates are usually determined, and the printing positions are also determined, so that they can be directly cut by the die-cutting machine in the future, and the texts and patterns on the surface of each plastic label are guaranteed to be the same. Therefore, the plastic plate needs to be positioned before printing to ensure that the printing position is accurate. At present, the traditional screen printer mainly positions the plastic plate at right angles, that is, positions the two sides of one of the right-angle ends of the plastic plate. In this positioning method, since the screen template is usually flexible, the scraper contacts and presses down the screen template to make the screen template fit the surface of the plastic plate. During the scraping process, the plastic plate is easily moved due to friction, which affects the printing quality and the subsequent die-cutting work. In view of this, we propose a printing positioning device. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a printing positioning device to solve the technical problem that the current existing screen printing positioning structure adopts a right-angle positioning method, and the scraper and the screen template are easily affected by friction during the scraping process, causing the plastic plate to move, thereby affecting the printing quality.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a printing positioning device, comprising a symmetrically arranged Y-axis moving mechanism and a printing module detachably and movably arranged on the Y-axis moving mechanism;
[0006] The printing module comprises a supporting component with a screen printing component movably arranged on the top;
[0007] A plastic plate is detachably placed on the top of the supporting assembly;
[0008] The screen printing assembly comprises a rectangular frame with a screen printing screen plate fixedly arranged at the bottom of the inner wall, and a screen printing positioning module is fixedly arranged in a rectangular array on the lower end surface of the rectangular frame;
[0009] The screen printing positioning module includes an elastic connection end with one end structure connected to a rectangular frame, the bottom end of the elastic connection end is structured to be connected to an elastic bending portion, and the end of the elastic bending portion away from the elastic connection end is structured to be connected to a positioning structure that is movably abutted against a plastic plate to achieve a centering and positioning effect, and the positioning structure is arranged obliquely.
[0010] The utility model designs an elastic connecting end, an elastic bending portion and a positioning structure. During screen printing on the surface of a plastic plate, the end of the positioning structure is away from the plastic plate before printing. During printing, the screen printing component moves toward the supporting component, and the end of the positioning structure abuts against the extension plate and the stage. As the screen printing component continues to move, the position of the elastic bending portion undergoes elastic deformation, so that the ends of the positioning structures in the screen printing positioning modules distributed in a rectangular array are gathered toward the middle and abut against the side positions of the plastic plate respectively, thereby realizing the centering and positioning clamping of the plastic plate, not only positioning the plastic plate on the supporting component, but also realizing the positioning between the screen printing component and the plastic plate through the screen printing positioning module, thereby ensuring the accuracy of the screen printing position of the text and pattern on the surface of the plastic plate, thereby ensuring that the positions of the text and pattern on the surface of each plastic label are the same during the subsequent die-cutting process.
[0011] Preferably, the positioning structure includes a centering push plate with one side structure connected to the elastic bending part, the centering push plate is arranged obliquely, and one end of the centering push plate away from the elastic bending part is connected to a cylindrical end, and the cylindrical end is movably abutted against the side of the plastic plate.
[0012] Preferably, the supporting assembly comprises a supporting platform with a loading platform detachably mounted on the top, and extension plates are formed on both sides of the upper surface of the loading platform, and the plastic plate is detachably placed on the loading platform.
[0013] Preferably, a Z-axis moving mechanism for adjusting the height of the screen printing assembly is detachably installed between the ends of the symmetrically arranged Y-axis moving mechanism, and an X-axis moving mechanism for adjusting the position of the screen printing assembly in the X-axis direction is movably installed inside the Z-axis moving mechanism.
[0014] Preferably, a scraper mechanism is movably installed inside a side of the X-axis moving mechanism away from the Z-axis moving mechanism, the bottom end of which is pressed against the screen printing mesh plate and movably scrapes the material.
[0015] Preferably, clamping mechanisms for clamping and fixing the rectangular frame are detachably mounted on both ends of a side of the X-axis moving mechanism away from the Z-axis moving mechanism.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The utility model designs an elastic connecting end, an elastic bending part and a positioning structure. During screen printing on the surface of a plastic plate, the end of the positioning structure is away from the plastic plate before printing. During printing, the screen printing component moves toward the supporting component, and the end of the positioning structure abuts against the extension plate and the stage. As the screen printing component continues to move, the elastic bending part is elastically deformed, so that the ends of the positioning structures in the screen printing positioning modules distributed in a rectangular array are gathered toward the middle and abut against the side positions of the plastic plate respectively, thereby realizing the centering and positioning clamping of the plastic plate, not only positioning the plastic plate on the supporting component, but also realizing the positioning between the screen printing component and the plastic plate through the screen printing positioning module, ensuring the accuracy of the screen printing position of the text and pattern on the surface of the plastic plate, thereby ensuring that the text and pattern positions on the surface of each plastic label are the same during the subsequent die-cutting process, solving the problem that the existing screen printing positioning structure adopts a right-angle positioning method, and the scraper is easily affected by friction during the contact and scraping process between the scraper and the screen template, causing the plastic plate to move, thereby affecting the printing quality.
[0018] 2. The utility model also arranges the positioning structure obliquely. During the screen printing process, since the screen printing screen generally only has holes at the positions of text and patterns, and the rest of the positions are closed, during the printing process, the rectangular frame continues to press down and forces the end of the positioning structure to lift up to exert a certain thrust on the screen printing screen, so that a gap is formed between the screen printing screen located at the edge of the plastic plate and it, avoiding the relative movement between the plastic plate and the screen printing screen due to the negative pressure during the lifting of the screen printing component after screen printing is completed, resulting in scratches on the text and patterns. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the utility model in which the screen printing component and the supporting component are combined;
[0021] Figure 3 It is a structural schematic diagram of the supporting assembly of the utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the screen printing assembly of the utility model;
[0023] Figure 5 This is a schematic diagram of the bottom structure of the screen printing assembly of the utility model;
[0024] Figure 6 This is a structural schematic diagram of the screen printing positioning module and the plastic plate of the utility model in the positioning state;
[0025] Figure 7 It is a structural schematic diagram of the screen printing positioning module of the utility model.
[0026] Description of the numbers in the figure:
[0027] 1. Z-axis moving mechanism; 2. X-axis moving mechanism; 3. Scraping mechanism; 4. Clamping mechanism; 5. Y-axis moving mechanism; 6. Printing module; 7. Screen printing assembly; 701. Rectangular frame; 702. Screen printing screen; 8. Support assembly; 801. Support platform; 802. Stage; 803. Extension plate; 9. Plastic plate; 10. Screen printing positioning module; 1001. Elastic connecting end; 1002. Elastic bending part; 1003. Centering push plate; 1004. Cylindrical end. DETAILED DESCRIPTION
[0028] like Figure 1-Figure 7 As shown, the utility model relates to a printing positioning device, comprising a symmetrically arranged Y-axis moving mechanism 5 and a printing module 6 detachably and movably arranged on the Y-axis moving mechanism 5, the printing module 6 comprises a supporting assembly 8 on the top of which a screen printing assembly 7 is movably arranged, a plastic plate 9 is detachably placed on the top of the supporting assembly 8, the screen printing assembly 7 comprises a rectangular frame 701 on the bottom of the inner wall of which a screen printing screen 702 is fixedly arranged, the lower end surface of the rectangular frame 701 is in the form of a rectangular array on which a screen printing positioning module 10 is fixedly arranged, the screen printing positioning module 10 comprises an elastic connecting end 1001 with one end structure connected to the rectangular frame 701, the bottom end of the elastic connecting end 1001 is structured to be connected to an elastic bending portion 1002, the end of the elastic bending portion 1002 away from the elastic connecting end 1001 is structured to be connected to a positioning structure that movably abuts against the plastic plate 9 to achieve a centering and positioning effect, and the positioning structure is arranged obliquely.
[0029] In an embodiment of the utility model, the positioning structure includes a centering push plate 1003 whose one side is connected to the elastic bending part 1002, the centering push plate 1003 is arranged obliquely, and one end of the centering push plate 1003 away from the elastic bending part 1002 is connected to a cylindrical end 1004, and the cylindrical end 1004 is movably abutted against the side of the plastic plate 9.
[0030] During the screen printing process, since the screen printing screen 702 generally only has holes at the positions of text and patterns, and the rest of the positions are closed, during the printing process, the rectangular frame 701 continues to press down and forces the cylindrical end 1004 at the end of the centering push plate 1003 to lift up and apply a certain thrust to the screen printing screen 702, so that a gap is formed between the screen printing screen 702 located at the edge of the plastic plate 9 and it, avoiding the relative movement between the plastic plate 9 and the screen printing screen 702 caused by the negative pressure during the lifting of the screen printing component 7 after screen printing is completed, resulting in scratches on the text and patterns.
[0031] In an embodiment of the utility model, the supporting assembly 8 includes a supporting platform 801 with a loading platform 802 detachably mounted on the top, and extension plates 803 are formed on both sides of the upper surface of the loading platform 802 , and the plastic plate 9 is detachably placed on the loading platform 802 .
[0032] In an embodiment of the utility model, a Z-axis moving mechanism 1 for adjusting the height of the screen printing component 7 is detachably installed between the ends of the symmetrically arranged Y-axis moving mechanism 5, an X-axis moving mechanism 2 for adjusting the position of the screen printing component 7 in the X-axis direction is movably installed inside the Z-axis moving mechanism 1, a scraping mechanism 3 whose bottom end presses against the screen printing screen 702 and movably scrapes is movably installed inside the side of the X-axis moving mechanism 2 away from the Z-axis moving mechanism 1, and a clamping mechanism 4 for clamping and fixing the rectangular frame 701 is detachably installed at both ends of the side of the X-axis moving mechanism 2 away from the Z-axis moving mechanism 1.
[0033] Working principle: This embodiment provides a printing positioning device. When in use, the plastic plate 9 is first placed on the stage 802, and then the position of the screen printing assembly 7 is adjusted by the Z-axis moving mechanism 1, the X-axis moving mechanism 2 and the Y-axis moving mechanism 5, so that the screen printing screen 702 is attached to the surface of the plastic plate 9. During the attachment process, the screen printing assembly 7 moves toward the supporting assembly 8, and the end of the positioning structure is abutted against the extension plate 803 and the stage 802. As the screen printing assembly 7 continues to move, the position of the elastic bending portion 1002 is changed. Due to elastic deformation, the ends of the positioning structures in the screen printing positioning modules 10 distributed in a rectangular array are retracted toward the middle and respectively abut against the side positions of the plastic plate 9, thereby realizing the centering, positioning and clamping of the plastic plate 9. Not only the plastic plate 9 is positioned on the supporting component 8, but also the positioning between the screen printing component 7 and the plastic plate 9 is realized through the screen printing positioning module 10. Then, the paint on the surface of the screen printing mesh 702 is scraped by the scraper mechanism 3, so that the paint is printed on the surface of the plastic plate 9, thereby completing the screen printing work.
[0034] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A printing positioning device, characterized in that: It comprises a symmetrically arranged Y-axis moving mechanism (5) and a printing module (6) detachably and movably arranged on the Y-axis moving mechanism (5); The printing module (6) comprises a supporting component (8) on the top of which a screen printing component (7) is movably arranged; A plastic plate (9) is detachably placed on the top of the supporting assembly (8); The screen printing assembly (7) comprises a rectangular frame (701) with a screen printing screen plate (702) fixedly arranged at the bottom of the inner wall, and screen printing positioning modules (10) are fixedly arranged in a rectangular array on the lower end surface of the rectangular frame (701); The screen printing positioning module (10) comprises an elastic connection end (1001) having one end structured to be connected to the rectangular frame (701), the bottom end of the elastic connection end (1001) being structured to be connected to an elastic bending portion (1002), and the end of the elastic bending portion (1002) away from the elastic connection end (1001) being structured to be connected to a positioning structure that is movably abutted against a plastic plate (9) to achieve a centering and positioning effect, and the positioning structure is arranged obliquely.
2. A printing positioning device according to claim 1, characterized in that: The positioning structure comprises a centering push plate (1003) having one side structure connected to the elastic bending portion (1002), the centering push plate (1003) being arranged obliquely, and one end of the centering push plate (1003) away from the elastic bending portion (1002) being connected to a cylindrical end (1004), the cylindrical end (1004) being movably abutted against the side of the plastic plate (9).
3. A printing positioning device according to claim 1, characterized in that: The supporting assembly (8) comprises a supporting platform (801) on the top of which a loading platform (802) is detachably mounted, and extension plates (803) are formed by extending structures on both sides of the upper surface of the loading platform (802), and the plastic plate (9) is detachably placed on the loading platform (802).
4. A printing positioning device according to claim 1, characterized in that: A Z-axis moving mechanism (1) for adjusting the height of the screen printing component (7) is detachably mounted between the ends of the symmetrically arranged Y-axis moving mechanisms (5), and an X-axis moving mechanism (2) for adjusting the position of the screen printing component (7) in the X-axis direction is movably mounted inside the Z-axis moving mechanism (1).
5. A printing positioning device according to claim 4, characterized in that: A scraping mechanism (3) is movably installed inside a side of the X-axis moving mechanism (2) away from the Z-axis moving mechanism (1), the bottom end of which is pressed against the screen printing mesh plate (702) and is movably scraped.
6. A printing positioning device according to claim 5, characterized in that: Clamping mechanisms (4) for clamping and fixing the rectangular frame (701) are detachably mounted on both ends of a side of the X-axis moving mechanism (2) away from the Z-axis moving mechanism (1).