Screen printing plate with full-opening grid line structure

Abstract

The invention relates to a screen printing plate with a full-opening grid line structure, and relates to the technical field of screen printing. The device comprises a mounting frame and a silk screen, the silk screen is located in the mounting frame, the circumferential side wall of the silk screen is connected with the inner wall of the mounting frame, and operation grooves are formed in the edges of the two sides of the silk screen in the length direction. The full-opening screen printing device has the effect of being high in full-opening screen printing quality.

Description

Technical Field

[0001] The present application relates to the field of screen printing, and in particular to a screen with a full-opening grid line structure. Background Art

[0002] 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: screen printing plate, scraper, ink, printing table and substrate. Printing is based on the basic principle that the mesh holes of the image part of the screen printing plate can pass the ink, while the mesh holes of the non-image part cannot pass the ink. When printing, pour ink on 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 to the substrate by the scraper.

[0003] For the fully-open screen structure on the printing screen, a bridge is usually added to the fully-open structure to ensure the stability of the fully-open screen structure, and then the scraper is printed. However, after the bridge part is usually printed, it will show as an obstruction on the substrate, affecting the printing quality, so it needs to be improved. Summary of the invention

[0004] In order to improve the problem of poor printing quality of a fully-opened screen structure, the present application provides a screen with a fully-opened grid line structure.

[0005] The present application provides a screen with a fully open grid line structure using the following technical solutions: A screen with a fully open grid line structure comprises a mounting frame and a wire mesh, wherein the wire mesh is located in the mounting frame, the circumferential side walls of the wire mesh are connected to the inner wall of the mounting frame, and operating grooves are provided at both side edges in the length direction of the wire mesh.

[0006] By adopting the above technical solution, when using, first place the installation frame horizontally above the substrate, then apply ink on the screen, use the scraper to apply a certain pressure to the oil film on the screen, and move along the length direction of the installation frame, so that the part of the screen that abuts against the scraper will be squeezed by the scraper and deformed downward until the screen abuts against the substrate. During the movement, the oil film is squeezed from the mesh on the screen by the scraper onto the substrate, thereby achieving printing.

[0007] When the layout direction of the full opening on the silk screen is the length direction of the installation frame, the scraper applies pressure and moves along the length direction of the installation frame, so that the full opening part of the silk screen is deformed downward. Due to the setting of the operating groove, the silk screen is suspended on both sides in the width direction of the installation frame, so that when the full opening is deformed, it is not easy to be pulled in the width direction, that is, in the process of the silk screen bending downward, the full opening is deformed in the length direction, and the full opening is a long groove, and the rigidity in the length direction is relatively large, thereby limiting the full opening from undergoing a large deformation, thereby improving the stability of the full opening, and further improving the printing quality.

[0008] Optionally, films are connected to both ends of the mounting frame in the length direction through connecting components, and there is a gap between the two films. The films can be abutted against the bottom wall of the wire mesh and cover the wire mesh, and the connecting components can drive the films to move along the length direction of the mounting frame.

[0009] By adopting the above technical solution, when ink is placed on the screen, the film is blocked between the screen and the substrate, so that the ink on the screen will not directly leak onto the substrate. When the scraper presses the screen, the force point of the scraper is located between the two films, and then the scraper moves along the length direction of the mounting frame. At this time, the two films are driven to move by the connecting component, so that the gap between the two films moves with the scraper, so that the part of the screen pressed by the scraper during the movement can abut against the substrate to achieve printing.

[0010] The setting of the film minimizes the distance between the screen and the substrate without affecting printing, so that the screen needs to move downward a smaller distance, thereby reducing the deformation of the screen, making the full opening on the screen less likely to deform, improving the stability of the full opening, and thus improving the quality of printing.

[0011] Optionally, the connecting component includes two mounting rollers, which are respectively located at the two ends of the mounting frame in the length direction, and the mounting rollers are arranged along the width direction of the mounting frame. The mounting rollers can rotate in the mounting frame, and the two films correspond to the mounting rollers one by one. One end of the film is fixed on the mounting roller, and the film is wound on the corresponding mounting roller. A driving component is provided on the mounting roller, and the driving component is used to drive the two mounting rollers to rotate synchronously.

[0012] By adopting the above technical solution, when the scraper presses the screen, the force application point of the scraper is located between the two films, and then the scraper moves along the length direction of the mounting frame. At this time, the driving component is started to drive the two films to move at the same time, that is, one of the films is gradually rolled up, and the other film is gradually released, so that the distance between the two films remains unchanged, and the distance moves with the scraper, so that the part of the screen pressed by the scraper during the movement can contact the substrate to complete the printing.

[0013] When the rotating roller rotates, one of the films is gradually released, while the other film is gradually rolled up. Under the restriction of the connecting rod, the distance between the two films is fixed, so that the end of the released film is subjected to tension, ensuring the tension of the film, so that the film can fit on the bottom wall of the screen, thereby improving the stability of the barrier screen and the substrate.

[0014] During the printing process, the film gradually opens, that is, the film always covers the area where the scraper has not moved, thus protecting the screen. The area where the screen printing is completed will be covered by another film, ensuring the timely separation of the screen and the substrate, preventing the printed graphics from being pulled, stained or deformed by the screen, thereby improving the printing quality.

[0015] Optionally, the driving assembly includes a driving wheel, a driven wheel and a chain, the driving wheel is fixedly sleeved on the end of one of the mounting rollers, the driven wheel is fixedly sleeved on the end of the other mounting roller, the chain is sleeved on the driving wheel and the driven wheel, the driving wheel and the driven wheel are both meshed with the chain, and the ends of the two films away from the mounting rollers are connected by a connecting rod.

[0016] By adopting the above technical solution, the driving wheel is driven to rotate, so that the chain moves, thereby driving the driven wheel to rotate synchronously, so that the two mounting rollers rotate at the same time, thereby ensuring that the distance between the two films remains unchanged, and the distance can move along the length direction of the mounting frame as the scraper moves, that is, during the movement of the scraper, the screen at the corresponding position can always be pressed onto the substrate.

[0017] Optionally, a slider is provided on the end of the film away from the installation roller, a slide groove is opened on the side wall in the width direction of the installation frame, the slide groove is arranged along the length direction of the installation frame, and the slider is inserted in the slide groove and can move in the slide groove.

[0018] By adopting the above technical solution, when the film moves, the slider moves in the slide groove, and the inner wall of the slide groove contacts the side wall of the slider, which plays a limiting and guiding role, making the film less likely to tilt and bend during movement, thereby improving the stability of the film.

[0019] The setting of the slider makes the end of the film always connected to the installation frame, that is, the film is always attached to the bottom wall of the screen and is not easy to move away from the screen, so that the film has a certain supporting effect. When the scraper presses the screen, the two sides of the force deformation point of the screen abut against the film. Since the film cannot move downward, the film limits the excessive deformation of the screen and reduces the deformation of the screen, thereby improving the stability of the full-opening structure and further improving the printing quality.

[0020] Optionally, a slot is provided on the installation roller along the length direction of the installation roller, and plug blocks are fixed on the inner walls of the driving wheel and the driven wheel, and the plug blocks can be inserted into the slot, and the end of the connecting rod is detachably connected to the film.

[0021] By adopting the above technical solution, when the driving wheel and the driven wheel rotate, the plug block moves, and because the side wall of the plug block abuts against the inner wall of the slot, the installation roller can rotate along with the rotation of the driving wheel and the driven wheel. When the screen needs to be cleaned, the two ends of the connecting rod are removed from the corresponding film, and then the installation roller is moved to relatively pull the plug block out of the slot, causing the film to twist, and then the installation roller is manually rotated to adjust the release length of the film so that the film is pulled out from under the screen, so as to directly operate the screen.

[0022] Optionally, the wire mesh includes a plurality of mesh plates, which are connected to the mounting frame via a positioning assembly, and adjacent mesh plates are connected via a connecting cloth, one end of the connecting cloth is fixed to one of the mesh plates, and the other end is inserted into another mesh plate, and the connecting cloth can move on the mesh plates along the length direction of the mounting frame.

[0023] By adopting the above technical solution, when the full opening on the screen is arranged along the width direction of the mounting frame, the ink is first poured on the upper surface of the mesh plate, and then the scraper is driven to move along the length direction of the mounting frame. At this time, when the scraper contacts one of the mesh plates, the scraper applies a pressing force to the mesh plate, thereby driving the mesh plate to move downward as a whole, and at the same time the connecting cloth moves, that is, the connecting cloth changes the length extending out of the mesh plate, so that there is no height difference between adjacent mesh plates, so that the oil film above the mesh plate will not leak out from between the adjacent mesh plates.

[0024] The grid plate moves down as a whole onto the substrate, so that the grid plate does not deform, and a single full-opening structure is completely printed on the substrate. When the scraper separates from the grid plate, the positioning component drives the grid plate to quickly reset to avoid ink sticking. The scraper then moves to the next grid plate and applies pressure to the next grid plate, repeating the above steps so that several grid plates move down in turn to achieve printing of the full-opening structure. In this process, the full opening goes straight up and down and flatly presses against the substrate for printing, preventing the shape of the full opening from being pulled and changing, thereby improving the quality of printing.

[0025] Optionally, the positioning assembly includes a positioning rod and a positioning spring, the positioning rod passes through the installation frame, the bottom end of the positioning rod is fixed to the grid plate, and the positioning spring is sleeved on the positioning rod to drive the positioning rod to drive the grid plate to be flush with the installation frame.

[0026] By adopting the above technical solution, when the scraper drives the grid plate to move downward, the elastic force of the positioning spring is overcome, causing the positioning spring to contract, and the grid plate drives the positioning rod to move vertically downward until it fits with the substrate, so that the full-opening structure is completely covered on the substrate, thereby improving the printing quality. When the scraper is separated from the grid plate, the positioning spring restores its deformation, driving the positioning rod to drive the grid plate upward until the grid plate is reset to a state flush with the installation frame, thereby preventing the grid plate that has just been printed from sticking to the oil film on the substrate.

[0027] Optionally, a plurality of bridges are provided in the operating groove, one end of the bridge is hinged on the inner wall of the operating groove, and the other end is hooked on the positioning rod.

[0028] By adopting the above technical solution, the bridging increases the stability of the connection between the grid plate and the positioning assembly, so that the positioning rod can limit the tilting of the grid plate and ensure that the grid plate goes straight up and down.

[0029] Optionally, an iron sheet is provided on the wire mesh, and a magnet is provided on the mounting frame, and the iron sheet can be attracted to the magnet.

[0030] By adopting the above technical solution, the magnet and the iron sheet are attracted to each other, ensuring that the grid plate can be restored to a horizontal state without being affected by the external force of the scraper, so that several grid plates can fit together and be spliced ​​into a flat screen, avoiding bending and folding of the grid plates, making the printed pattern less susceptible to influence, and improving the printing quality.

[0031] In summary, the present application includes at least one of the following beneficial effects: 1. The setting of the film minimizes the distance between the screen and the substrate without affecting printing, so that the screen needs to move downward for a smaller distance, thereby reducing the deformation of the screen, making the full opening on the screen less likely to deform, improving the stability of the full opening, and thus improving the quality of printing; 2. The grid plate moves down as a whole onto the substrate, so that the grid plate does not deform, and a single full-opening structure is completely printed on the substrate. When the scraper separates from the grid plate, the positioning component drives the grid plate to quickly reset to avoid ink sticking. The scraper then moves to the next grid plate and applies pressure to the next grid plate. The above steps are repeated, so that several grid plates move down in turn to achieve printing of the full-opening structure. In this process, the full opening is straight up and down, and is flatly pressed against the substrate for printing, which prevents the shape of the full opening from being pulled and changed, thereby improving the quality of printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of Example 1 of the present application; Figure 2 is a schematic diagram of the structure of the film in Example 1; Figure 3 for Figure 1 The figure at A in the middle; Figure 4 for Figure 2 The enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of Example 2 of the present application; Figure 6 This is a schematic diagram of the structure of the screen in Example 2.

[0033] In the figure: 10, installation frame; 11, slide groove; 20, wire mesh; 21, operation groove; 22, grid plate; 221, iron sheet; 30, connection assembly; 31, installation roller; 311, slot; 40, film; 41, slider; 411, connecting rod; 50, driving assembly; 51, driving wheel; 52, driven wheel; 53, chain; 60, plug-in block; 70, connecting cloth; 80, positioning assembly; 81, positioning rod; 82, positioning spring; 90, bridge. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] Embodiment 1, The present application embodiment discloses a screen with a fully open grid line structure. Figure 1 The screen of the fully open grid structure includes a mounting frame 10 and a screen 20. The screen 20 is located in the mounting frame 10, and the circumferential side wall of the screen 20 is connected to the inner wall of the mounting frame 10. When in use, the mounting frame 10 is first placed horizontally above the substrate, and then the ink is applied to the screen 20. A scraper is used to apply a certain pressure to the oil film on the screen 20, and the mounting frame 10 is moved along the length direction at the same time, so that the part of the screen 20 that abuts against the scraper will be squeezed by the scraper and deformed downward until the screen 20 abuts against the substrate. The oil film is squeezed from the mesh on the screen 20 to the substrate by the scraper during the movement to achieve printing.

[0036] When the structure on the screen 20 is fully open, and the layout direction of the fully open is the length direction of the installation frame 10, an operation slot 21 is provided at both side edges in the length direction of the screen 20. The scraper applies pressure and moves along the length direction of the installation frame 10, so that the fully open part of the screen 20 is deformed downward. Due to the setting of the operation slot 21, the screen 20 is suspended on both sides in the width direction of the installation frame 10, so that when the fully open is deformed, it is not easy to be pulled in the width direction, that is, in the process of the screen 20 bending downward, the fully open is deformed in the length direction by force, and the fully open is a long slot, and the rigidity in the length direction is large, thereby limiting the large deformation of the fully open, thereby improving the stability of the fully open, and further improving the quality of printing.

[0037] Reference Figure 1 and Figure 2 In order to further reduce the influence of the deformation of the wire mesh 20 on the stability of the fully open structure, a connecting assembly 30 is provided on the installation frame 10, and the connecting assembly 30 includes two installation rollers 31, which are respectively located at both ends of the length direction of the installation frame 10, and the installation rollers 31 are arranged along the width direction of the installation frame 10, and the installation rollers 31 can rotate in the installation frame 10.

[0038] Reference Figure 1 and Figure 2 A film 40 is wound on the mounting roller 31, wherein the film 40 is made of PVC. One end of the film 40 is fixed on the mounting roller 31, and the other end of the film 40 is laid on the bottom of the wire mesh 20. There is a gap between the ends of the two films 40 below the wire mesh 20. The film 40 can be attached to the bottom wall of the wire mesh 20 and cover the wire mesh 20. The connecting component 30 can drive the film 40 to move along the length direction of the mounting frame 10.

[0039] When ink is placed on the screen 20, the film 40 is blocked between the screen 20 and the substrate, so that the ink on the screen 20 will not directly leak onto the substrate. When the scraper presses the screen 20, the force point of the scraper is located between the two films 40, and then the scraper moves along the length direction of the installation frame 10. At this time, the installation roller 31 is rotated to drive the two films 40 to move, so that the gap between the two films 40 moves with the scraper, so that the part of the screen 20 pressed by the scraper during the movement can abut against the substrate to achieve printing.

[0040] The arrangement of the film 40 minimizes the distance between the screen 20 and the substrate without affecting printing, thereby reducing the distance the screen 20 needs to move downward, thereby reducing the deformation of the screen 20, making the full opening on the screen 20 less likely to deform, improving the stability of the full opening, and thereby improving the quality of printing.

[0041] Reference Figure 1 and Figure 3 In order to ensure that the film 40 is always in contact with the bottom of the screen 20, a slider 41 is provided on the end of the film 40 away from the mounting roller 31, and a slide groove 11 is provided on the side wall in the width direction of the mounting frame 10. The slide groove 11 is arranged along the length direction of the mounting frame 10, and the slider 41 is inserted in the slide groove 11 and can move in the slide groove 11.

[0042] Reference Figure 2 and Figure 4In order to drive the two installation rollers 31 to rotate synchronously, a driving assembly 50 is provided on the installation frame 10. The driving assembly 50 includes a driving wheel 51, a driven wheel 52 and a chain 53. The driving wheel 51 is fixedly sleeved on the end of one of the installation rollers 31. A motor is installed on the installation frame 10 by bolts. The output end of the motor is coaxially fixed with the driving wheel 51 to drive the driving wheel 51 to rotate. The driven wheel 52 is fixedly sleeved on the end of the other installation roller 31. The chain 53 is sleeved on the driving wheel 51 and the driven wheel 52. The driving wheel 51 and the driven wheel 52 are both meshed with the chain 53. The sliders 41 on the two films 40 are connected by a connecting rod 411.

[0043] When the scraper presses the screen 20, the force point of the scraper is located between the two films 40, and then the scraper moves along the length direction of the installation frame 10. At this time, the motor is started to drive the driving wheel 51 to rotate, and the driven wheel 52 is driven by the chain 53 to rotate synchronously, that is, the two installation rollers 31 rotate at the same time, so that the two films 40 move at the same time. That is, one of the films 40 is gradually rolled up, and the other film 40 is gradually released, so that the distance between the two films 40 remains unchanged, and the distance moves with the scraper, so that the part of the screen 20 pressed by the scraper during the movement can contact the substrate, and the printing is completed.

[0044] Reference Figure 1 and Figure 2 When the rotating roller rotates, one of the films 40 is gradually released, while the other film 40 is gradually rolled up. Under the restriction of the connecting rod 411, the distance between the two films 40 is fixed, so that the end of the released film 40 is subjected to tension, ensuring the tension of the film 40, so that the film 40 can fit on the bottom wall of the screen 20, thereby improving the stability of the barrier screen 20 and the substrate.

[0045] During the printing process, the film 40 is gradually opened, that is, the film 40 always covers the area where the scraper has not moved, thereby protecting the screen 20. The printed part of the screen 20 will be covered by another film 40, ensuring the timely separation of the screen 20 and the substrate, preventing the printed graphics from being pulled, stained or deformed by the screen 20, thereby improving the printing quality.

[0046] Reference Figure 1 and Figure 2 When the oil film attached to the film 40 needs to be cleaned after use, the mounting roller 31 needs to be removed from the mounting frame 10, wherein a receiving hole is provided on the mounting frame 10, and the mounting roller 31 is located in the receiving hole. A cover plate is installed on the upper surface of the mounting frame 10, and the cover plate is used to cover the receiving hole.

[0047] Reference Figure 2 and Figure 4A slot 311 is provided on the mounting roller 31 along the length direction of the mounting roller 31, and an insert block 60 is fixed on the inner wall of the driving wheel 51 and the driven wheel 52, and the insert block 60 can be inserted into the slot 311. A screw is fixed on the slider 41, and the end of the connecting rod 411 is correspondingly sleeved on the screw, and a nut is sleeved on the screw, so that the connecting rod 411 is fixed on the slider 41, realizing the detachable connection between the connecting rod 411 and the two sliders 41.

[0048] When the driving wheel 51 and the driven wheel 52 rotate, the insert block 60 moves, and because the side wall of the insert block 60 abuts against the inner wall of the slot 311, the installation roller 31 can rotate along with the rotation of the driving wheel 51 and the driven wheel 52. When the screen 20 needs to be cleaned, the two ends of the connecting rod 411 are removed from the corresponding film 40, and then the installation roller 31 is moved to relatively pull the insert block 60 out of the slot 311, so that the film 40 is twisted, and then the installation roller 31 is manually rotated to adjust the release length of the film 40 so that the film 40 is pulled out from under the screen 20, so that the screen 20 can be directly operated.

[0049] The working principle of the embodiment 1 of the present application is as follows: when ink is placed on the screen 20, the film 40 is blocked between the screen 20 and the substrate, so that the ink on the screen 20 will not directly leak onto the substrate. When the scraper presses the screen 20, the force point of the scraper is located between the two films 40, and then the scraper moves along the length direction of the mounting frame 10. At this time, the connection assembly 30 is used to drive the two films 40 to move, so that the gap between the two films 40 moves with the scraper, so that the part of the screen 20 pressed by the scraper during the movement can abut against the substrate to achieve printing.

[0050] The arrangement of the film 40 minimizes the distance between the screen 20 and the substrate without affecting printing, thereby reducing the distance the screen 20 needs to move downward, thereby reducing the deformation of the screen 20, making the full opening on the screen 20 less likely to deform, improving the stability of the full opening, and thereby improving the quality of printing.

[0051] Embodiment 2, The difference between Example 2 and Example 1 is that: Figure 5 and Figure 6 The wire mesh 20 includes a plurality of mesh plates 22 , which are connected to the mounting frame 10 via a positioning assembly 80 . The plurality of mesh plates 22 are arranged in sequence along the length direction of the mounting frame 10 , and in an initial state, the plurality of mesh plates 22 are attached to each other to form a flat wire mesh 20 .

[0052] Reference Figure 5 and Figure 6The positioning assembly 80 includes a positioning rod 81 and a positioning spring 82. The positioning rod 81 passes through the installation frame 10. The bottom end of the positioning rod 81 is fixed to the grid plate 22. The positioning spring is sleeved on the positioning rod 81 to drive the positioning rod 81 to drive the grid plate 22 to be flush with the installation frame 10.

[0053] Reference Figure 5 and Figure 6 Adjacent mesh panels 22 are connected by a connecting cloth 70 , one end of the connecting cloth 70 is fixed to one of the mesh panels 22 , and the other end is inserted into another mesh panel 22 , and the connecting cloth 70 can move on the mesh panel 22 along the length direction of the mounting frame 10 .

[0054] When the full opening on the screen 20 is arranged along the width direction of the mounting frame 10, first pour the ink on the upper surface of the grid plate 22, and then drive the scraper to move along the length direction of the mounting frame 10. At this time, when the scraper contacts one of the grid plates 22, the scraper applies a pressing force to the grid plate 22, thereby driving the grid plate 22 to move downward as a whole, overcoming the elastic force of the positioning spring 82, causing the positioning spring 82 to shrink, and the grid plate 22 drives the positioning rod 81 to move vertically downward until it fits with the substrate, so that the full opening structure is completely covered on the substrate, improving the printing quality. When the scraper is separated from the grid plate 22, the positioning spring 82 recovers its deformation, driving the positioning rod 81 to drive the grid plate 22 to move upward until the grid plate 22 is reset to a state flush with the mounting frame 10, avoiding the grid plate 22 that has just been printed from sticking to the oil film on the substrate.

[0055] Reference Figure 5 and Figure 6 When the mesh plate 22 moves downward, the connecting cloth 70 moves, that is, the connecting cloth 70 changes the length extending from the mesh plate 22, so that there will be no height difference between adjacent mesh plates 22, so that the oil film above the mesh plate 22 will not leak out from between the adjacent mesh plates 22.

[0056] The grid plate 22 is moved down as a whole onto the substrate, so that the grid plate 22 is not deformed, and a single full-opening structure is completely printed on the substrate. When the scraper is separated from the grid plate 22, the positioning assembly 80 drives the grid plate 22 to quickly reset to avoid ink sticking. The scraper then moves to the next grid plate 22 and applies pressure to the next grid plate 22. The above steps are repeated, so that several grid plates 22 are moved down in sequence to achieve printing of the full-opening structure. In this process, the full opening is straight up and down, and is flatly pressed against the substrate for printing, so that the shape of the full opening is prevented from being pulled and changed, thereby improving the quality of printing.

[0057] Reference Figure 5 and Figure 6In order to increase the stability of the connection between the grid plate 22 and the positioning assembly 80, a plurality of bridges 90 are provided in the operating groove 21. One end of the bridge 90 is hinged on the inner wall of the operating groove 21, and the other end is hooked on the positioning rod 81, so that the positioning rod 81 can limit the tilting of the grid plate 22 and ensure that the grid plate 22 goes straight up and down.

[0058] Reference Figure 5 and Figure 6 , wherein an iron sheet 221 is fixed on the circumferential edge of the screen 20, and a magnet is provided on the mounting frame 10, and the iron sheet 221 can be attracted to the magnet. The cooperation between the magnet and the iron sheet 221 ensures that the mesh plate 22 can be restored to a horizontal state without being affected by the external force of the scraper, so that a plurality of mesh plates 22 can be attached to each other and spliced ​​into a flat screen 20, avoiding the mesh plates 22 from bending and folding, making the printed pattern less susceptible to influence, and improving the printing quality.

[0059] The implementation principle of Example 2 of the present application is as follows: when the full opening on the screen 20 is arranged along the width direction of the mounting frame 10, first pour the ink on the upper surface of the grid plate 22, then drive the scraper to move along the length direction of the mounting frame 10, at this time when the scraper contacts one of the grid plates 22, the grid plate 22 is moved down as a whole onto the substrate, so that the grid plate 22 is not deformed, and the single full opening structure is completely printed on the substrate, when the scraper is separated from the grid plate 22, the positioning assembly 80 drives the grid plate 22 to quickly reset to avoid the sticking of the ink. Then the scraper moves to the next grid plate 22, and applies pressure to the next grid plate 22, repeating the above steps, so that several grid plates 22 move down in turn, and realize the printing of the full opening structure. In this process, the full opening is straight up and down, flatly pressed against the substrate for printing, avoiding the shape of the full opening being pulled and changed, thereby improving the quality of printing.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screen with a fully open grid line structure, characterized in that: The invention comprises a mounting frame (10) and a wire mesh (20), wherein the wire mesh (20) is located in the mounting frame (10), the circumferential side wall of the wire mesh (20) is connected to the inner wall of the mounting frame (10), and operating grooves (21) are provided at the edges of both sides in the length direction of the wire mesh (20).

2. The screen of the full-open grid structure according to claim 1, characterized in that: The two ends of the installation frame (10) in the length direction are connected to films (40) via connecting components (30), and there is a gap between the two films (40). The films (40) can be pressed against the bottom wall of the wire mesh (20) and cover the wire mesh (20), and the connecting components (30) can drive the films (40) to move along the length direction of the installation frame (10).

3. The screen of the full-open grid structure according to claim 2, characterized in that: The connecting assembly (30) comprises two mounting rollers (31), the two mounting rollers (31) are respectively located at two ends of the mounting frame (10) in the length direction, the mounting rollers (31) are arranged along the width direction of the mounting frame (10), the mounting rollers (31) can rotate in the mounting frame (10), the two films (40) correspond to the mounting rollers (31) one by one, one end of the film (40) is fixed on the mounting roller (31), and the film (40) is wound on the corresponding mounting roller (31), and the mounting roller (31) is provided with a driving assembly (50), and the driving assembly (50) is used to drive the two mounting rollers (31) to rotate synchronously.

4. The screen of the fully-open grid structure according to claim 3, characterized in that: The driving assembly (50) comprises a driving wheel (51), a driven wheel (52) and a chain (53); the driving wheel (51) is fixedly sleeved on the end of one of the mounting rollers (31); the driven wheel (52) is fixedly sleeved on the end of the other mounting roller (31); the chain (53) is sleeved on the driving wheel (51) and the driven wheel (52); the driving wheel (51) and the driven wheel (52) are both meshed with the chain (53); and the ends of the two films (40) away from the mounting roller (31) are connected via a connecting rod (411).

5. The screen with a fully open grid structure according to claim 2, characterized in that: A slider (41) is provided on one end of the film (40) away from the installation roller (31), a slide groove (11) is provided on the side wall in the width direction of the installation frame (10), the slide groove (11) is arranged along the length direction of the installation frame (10), and the slider (41) is inserted in the slide groove (11) and can move in the slide groove (11).

6. The screen with a fully open grid structure according to claim 4, characterized in that: A slot (311) is provided on the installation roller (31) along the length direction of the installation roller (31); an insert block (60) is fixed on the inner wall of the driving wheel (51) and the driven wheel (52); the insert block (60) can be inserted into the slot (311); and the end of the connecting rod (411) is detachably connected to the film (40).

7. The screen with a fully open grid structure according to claim 1, characterized in that: The wire mesh (20) comprises a plurality of mesh plates (22), wherein the mesh plates (22) are connected to the mounting frame (10) via a positioning assembly (80), and adjacent mesh plates (22) are connected via a connecting cloth (70), one end of the connecting cloth (70) is fixed to one of the mesh plates (22), and the other end is inserted into another mesh plate (22), and the connecting cloth (70) can move on the mesh plate (22) along the length direction of the mounting frame (10).

8. The screen with a fully open grid structure according to claim 7, characterized in that: The positioning assembly (80) comprises a positioning rod (81) and a positioning spring (82); the positioning rod (81) passes through the installation frame (10); the bottom end of the positioning rod (81) is fixed to the grid plate (22); the positioning spring is sleeved on the positioning rod (81) and is used to drive the positioning rod (81) to drive the grid plate (22) to be flush with the installation frame (10).

9. The screen with a fully open grid structure according to claim 8, characterized in that: A plurality of bridges (90) are provided in the operating groove (21), one end of the bridge (90) is hinged on the inner wall of the operating groove (21), and the other end is hooked on the positioning rod (81).

10. The screen with a fully open grid structure according to claim 7, characterized in that: An iron sheet (221) is provided on the wire mesh (20), a magnet is provided on the installation frame (10), and the iron sheet (221) can be attracted to the magnet.

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