A high-precision silk screen assembly for sign production

Abstract

The utility model discloses a high accuracy silk screen assembly for standing card production, including the fixed frame, the middle part of fixed frame is provided with elevating system, elevating system includes the drive assembly of installation in the inside of fixed frame, drive assembly is engaged with two toothed plate, two the toothed plate is installed respectively in the outside of two concave board, the inside of two concave board all is provided with adjusting assembly, adjusting assembly lower extreme all are installed with the ink scraping assembly, compared with prior art, the utility model's structure design is reasonable, and practicality is strong, the height fine adjustment of ink scraping assembly is convenient, the scraper lower end of ink scraping assembly can have the distance of pressing silk screen to with product surface adhesion, effectively improved the adjusting efficiency of ink scraping assembly, and it is convenient to the buffer protection of scraper, effectively improved its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of stand-up printing equipment, specifically a high-precision screen printing component for stand-up production. Background Technology

[0002] As described in the utility model patent application number CN202123343230.2, acrylic, also known as specially treated plexiglass, is a replacement product for plexiglass. Products made of acrylic have the characteristics of long service life. In the production process of acrylic sheets, screen printing is a very important step, and it is generally carried out by high-precision screen printing components.

[0003] Currently, when screen printing acrylic sheets using printing equipment, the tension of the screen creates a rebound force on the squeegee, preventing the screen printing plate from contacting the substrate except for the printing lines. Under the pressure of the squeegee, the ink leaks through the mesh from the moving printing lines onto the substrate. However, printing components generally suffer from complex structures, inflexible printing adjustments, and easy damage to the squeegee. To address this issue, we provide a high-precision screen printing component for standee production. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a high-precision screen printing component for standee production that can solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-precision screen printing assembly for stand-up sign production includes a fixing frame, wherein a lifting mechanism is provided in the middle of the fixing frame;

[0007] The lifting mechanism includes a drive assembly installed inside the fixed frame. The drive assembly engages with two toothed plates, which are respectively installed on the outside of two concave plates. An adjustment assembly is provided inside each of the two concave plates, and a scraper assembly is installed at the lower end of each adjustment assembly.

[0008] The scraper assembly includes a support plate connected to an adjustment assembly. Springs are symmetrically mounted on the lower end of the support plate, and limit holes are symmetrically provided on the upper end of the support plate. Limit pins are movably inserted into the inner cavity of the limit holes. A concave frame is mounted on the lower end of the two limit pins. A groove is provided on the upper end of the concave frame, and the lower end of the spring is installed in the inner cavity of the groove. A scraper is provided in the inner cavity of the concave frame.

[0009] As a further embodiment of this utility model: the fixing frame includes a top plate, support columns and a bottom plate, the two ends of the four support columns are respectively connected to the top plate and the bottom plate, the top plate and the bottom plate are symmetrically provided with threaded grooves on one side, and the bottom plate is symmetrically provided with through grooves that are movably inserted into the adjusting component at the upper end.

[0010] As a further embodiment of this utility model: a support frame is provided on one side of the top plate and the bottom plate, and the support frame is screwed to the threaded grooves on the outer side of the top plate and the bottom plate by four sets of first bolts respectively.

[0011] As a further embodiment of this utility model: the drive assembly includes a mounting plate and a support base mounted on the upper part of the base plate, a servo motor is mounted on one side of the mounting plate, the output end of the servo motor is connected to a drive shaft, one end of the drive shaft is rotatably connected to the support base, and a gear that meshes with a gear plate is mounted on the outer side of the drive shaft.

[0012] As a further embodiment of this utility model: the adjusting assembly includes a support rod movably disposed inside the concave plate, with limit strips integrally connected to both sides of the support rod, and limit grooves slidably engaging with both sides of the concave plate, a fixing block installed at the lower end of the support rod, the fixing block being screwed to the support plate, a bearing installed at the upper end of the support rod, an adjusting bolt rotatably mounted in the middle of the bearing, and a cover plate installed at the upper end of the concave plate, the adjusting bolt being threadedly rotatably connected to the middle of the cover plate.

[0013] As a further embodiment of this utility model: connecting rods are symmetrically installed on the outer side of each concave plate, and positioning sleeves that are movably connected to the support column are installed on the outer side of each connecting rod.

[0014] As a further embodiment of this utility model: the outer side of the scraper is symmetrically provided with through holes, and the concave frame is screwed with a nut after passing through the through holes by a second bolt.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By rotating the adjusting bolt, which rotates spirally in the middle of the cover plate, the lower end of the adjusting bolt moves downward. The lower end of the adjusting bolt drives the bearing and its outer support rod, which are rotatably connected to it, to move downward. Subsequently, the support rod drives the fixing block and the entire doctor blade assembly to move downward, allowing for fine adjustment of the height of the doctor blade assembly. This ensures that the lower end of the doctor blade assembly can press down the screen to a distance that is in contact with the product surface, effectively improving the adjustment efficiency of the doctor blade assembly and making it easier to use.

[0017] 2. The spring designed between the concave frame and the support plate causes the fixed block to move downward when the support rod moves the fixed block downward. The fixed block then moves the support plate, spring, concave frame, and scraper downward. After the scraper comes into contact with the wire mesh, it generates downward pressure on the wire mesh. When the instantaneous downward pressure is too large, the spring will compress and buffer, thereby buffering and protecting the scraper and the wire mesh, preventing damage to the scraper, and effectively improving its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a partially disassembled three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the disassembled lifting mechanism of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of a portion of the lifting mechanism of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the disassembled ink scraping component of this utility model.

[0023] The reference numerals and names in the figure are as follows:

[0024] Fixed frame-1, top plate-11, support column-12, bottom plate-13, through groove-14, threaded groove-15, lifting mechanism-2, mounting plate-21, servo motor-22, drive shaft-23, gear-24, support base-25, concave plate-26, toothed plate-27, support rod-28, connecting rod-29, positioning sleeve-210, fixing block-211, limit groove-212, limit strip-213, bearing-214, cover plate-215, adjusting bolt-216, scraper assembly-3, support plate-31, limit hole-32, limit column-33, concave frame-34, groove-35, spring-36, scraper-37, through hole-38, second bolt-39, nut-310, support frame-4, first bolt-5. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5A high-precision screen printing component for stand-up sign production includes a fixing frame 1. The fixing frame 1 includes a top plate 11, support columns 12, and a bottom plate 13. The two ends of the four support columns 12 are respectively connected to the top plate 11 and the bottom plate 13. Threaded grooves 15 are symmetrically arranged on one side of the top plate 11 and the bottom plate 13. Through grooves 14 that are symmetrically arranged on the upper end of the bottom plate 13 are movably inserted into the adjusting component. A support frame 4 is arranged on one side of the top plate 11 and the bottom plate 13. The support frame 4 is screwed to the threaded grooves 15 on the outer side of the top plate 11 and the bottom plate 13 by four sets of first bolts 5.

[0027] The support frame 4 is screwed to the threaded groove 15 on the outside of the top plate 11 and the bottom plate 13 by the first bolt 5, and the fixed frame 1 is screwed and fixed. The support frame 4 is installed with the displacement mechanism of the screen printing machine (the existing screen printing machine mechanism, which will not be described in detail here), so that the displacement mechanism of the screen printing machine can drive the screen printing assembly to move horizontally.

[0028] A lifting mechanism 2 is provided in the middle of the fixed frame 1. The lifting mechanism 2 includes a drive assembly installed inside the fixed frame 1. The drive assembly meshes with two toothed plates 27. The two toothed plates 27 are respectively installed on the outer side of two concave plates 26. The drive assembly includes a mounting plate 21 and a support base 25 installed on the upper end of the base plate 13. A servo motor 22 is installed on one side of the mounting plate 21. The output end of the servo motor 22 is connected to a drive shaft 23. One end of the drive shaft 23 is rotatably connected to the support base 25. A gear 24 that meshes with the toothed plates 27 is installed on the outer side of the drive shaft 23.

[0029] When the output of the servo motor 22 drives the drive shaft 23 to rotate forward, the drive shaft 23 drives the gear 24 to rotate forward. The gear 24 drives the two meshing toothed plates 27 to move upward and downward respectively. In turn, the two toothed plates 27 drive the two concave plates 26, the adjustment component, and the squeegee component 3 to move upward and downward respectively. During the printing squeegee operation, the output of the servo motor 22 rotates forward, one squeegee component 3 moves upward and the other squeegee component 3 moves downward to contact the printing screen for squeegeeing. After the squeegee component 3 finishes squeegeeing in the horizontal position, the output of the servo motor 22 rotates in the opposite direction, and the two downward-moving squeegee components 3 move upward, while the previously upward-moving squeegee component 3 moves downward. Then the downward-moving squeegee component 3 resets and moves horizontally again, performing squeegeeing again while returning ink, effectively improving the printing effect on acrylic standees.

[0030] Both concave plates 26 are equipped with adjustment components. Each adjustment component includes a support rod 28 movably disposed inside the concave plate 26. Limiting strips 213 are integrally connected to both sides of the support rod 28. Limiting grooves 212 are provided on both sides of the concave plate 26 to slide with the limiting strips 213. A fixing block 211 is installed at the lower end of the support rod 28 and is screwed to the support plate 31. A bearing 214 is installed at the upper end of the support rod 28. An adjusting bolt 216 is rotatably installed in the middle of the bearing 214. A cover plate 215 is installed at the upper end of the concave plate 26. The adjusting bolt 216 is threadedly rotatably connected to the middle of the cover plate 215.

[0031] The screen printing machine's screen needs to maintain a certain distance from the top of the product, not be in direct contact with it. Therefore, during screen printing with the squeegee assembly 3, the drive assembly provides power, causing the squeegee assembly 3 to move downwards and press against the screen. However, because the thickness of each product (acrylic standee) is different, the distance between the screen and the product varies. Since the drive power of the drive assembly is programmed and difficult to modify, fine-tuning of the squeegee assembly 3 is necessary. This is achieved by rotating the adjusting bolt 216, which rotates spirally in the middle of the cover plate 215, causing the lower end of the adjusting bolt 216 to move downwards. The lower end of the adjusting bolt 216 drives the bearing 214 and its outer support rod 28, which are rotatably connected to it, to move downward. The support rod 28 is limited to move downward through the limiting strip 213 in the limiting groove 212 inside the concave plate 26, which effectively improves the movement stability of the support rod 28. Subsequently, the support rod 28 drives the fixing block 211 and the doctor blade assembly 3 to move downward as a whole, so as to make fine adjustment of the height of the doctor blade assembly 3. This allows the lower end of the doctor blade 37 of the doctor blade assembly 3 to have a distance to press down the screen to fit the product surface, which facilitates effective fine adjustment of the position of the doctor blade assembly 3, effectively improves the adjustment efficiency of the doctor blade assembly 3, and makes it easy to use.

[0032] Connecting rods 29 are symmetrically installed on the outer side of the concave plate 26. Positioning sleeves 210 that are movably sleeved with the support column 12 are installed on the outer side of the connecting rods 29. When the toothed plate 27 and the concave plate 26 are moved by the drive assembly, the connecting rods 29 on both sides of the concave plate 26 are limited to move on the outer side of the support column 12 through the positioning sleeves 210, which effectively improves the displacement stability of the concave plate 26.

[0033] Each adjustment component has a scraper assembly 3 installed at its lower end. The scraper assembly 3 includes a support plate 31 connected to the adjustment component. Springs 36 are symmetrically installed at the lower end of the support plate 31. Limiting holes 32 are symmetrically provided at the upper end of the support plate 31. Limiting posts 33 are movably inserted into the inner cavity of the limiting holes 32. A concave frame 34 is installed at the lower end of the two limiting posts 33. A groove 35 is provided at the upper end of the concave frame 34. The lower end of the springs 36 is installed in the inner cavity of the groove 35. A scraper 37 is provided in the inner cavity of the concave frame 34. Through holes 38 are symmetrically provided on the outer side of the scraper 37. A nut 310 is screwed onto the concave frame 34 after the second bolt 39 passes through the through hole 38.

[0034] The scraper 37 is fixed to the inner cavity of the concave frame 34 by the second bolt 39 and nut 310, which facilitates installation and disassembly, and makes it easy to install and replace. It is convenient to use. The spring 36 designed between the concave frame 34 and the support plate 31 causes the support plate 31, spring 36, concave frame 34 and scraper 37 to move downward when the support rod 28 moves the fixing block 211 downward. After the scraper 37 is in contact with the wire mesh, it generates downward pressure on the wire mesh. When the instantaneous downward pressure is too large, the spring 36 will compress and buffer, thereby buffering and protecting the scraper 37 and the wire mesh, effectively improving their service life.

[0035] Working principle: The screen printing machine's controller is programmed and connected to the servo motor 22. During use, the support frame 4 is screwed to the threaded grooves 15 on the outer side of the top plate 11 and bottom plate 13 using the first bolt 5, thus fixing the fixed frame 1. This allows the screen printing machine's displacement mechanism to move the screen printing assembly horizontally. During screen printing, when the output end of the servo motor 22 drives the drive shaft 23 to rotate forward, the drive shaft 23 drives the gear 24 to rotate forward. The gear 24 then drives the two meshing gear plates 27 to move upward and downward respectively. The two toothed plates 27 drive the two concave plates 26, the adjusting assembly, and the scraper assembly 3 to move upward and downward, respectively. During the printing scraping operation, the output of the servo motor 22 rotates forward, causing one scraper assembly 3 to move upward and the other to move downward to contact the printing screen and scrape ink. After the scraper assembly 3 finishes scraping ink at the horizontal position, the output of the servo motor 22 rotates in the opposite direction, thus repeating the above operation. The two downward-moving scraper assemblies 3 move upward, while the previously upward-moving scraper assembly 3 moves downward. Subsequently, the downward-moving scraper assembly 3 returns to its horizontal position. The movement of the ink scraping assembly 3, while simultaneously performing ink return, also facilitates ink scraping, effectively improving the printing effect on the acrylic standee. When the height of the scraping assembly 3 needs adjustment, the adjusting bolt 216 is rotated. This bolt rotates spirally in the center of the cover plate 215, causing its lower end to move downwards. This movement, in turn, causes the bearing 214 and its outer support rod 28, which are rotatably connected to the bolt, to move downwards. Subsequently, the support rod 28 moves the fixing block 211 and the entire scraping assembly 3 downwards, allowing for fine-tuning of the scraping assembly 3's height and facilitating its scraping action. The lower end of plate 37 can press the screen down to a distance that allows it to adhere to the product surface, effectively improving the adjustment efficiency of the squeegee assembly 3 and making it easier to use. Furthermore, through the spring 36 designed between the concave frame 34 and the support plate 31, when the support rod 28 moves the fixing block 211 downward, the fixing block 211 moves the support plate 31, spring 36, concave frame 34, and squeegee 37 downward. After the squeegee 37 adheres to the screen, it generates downward pressure on the screen. When the instantaneous downward pressure is too large, the spring 36 will compress and buffer, thereby buffering and protecting the squeegee 37 and the screen, effectively improving their service life.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-precision screen printing component for stand-up label production, characterized in that, Includes a fixed frame (1), and a lifting mechanism (2) is provided in the middle of the fixed frame (1); The lifting mechanism (2) includes a drive assembly installed inside the fixed frame (1). The drive assembly engages with two toothed plates (27). The two toothed plates (27) are respectively installed on the outside of two concave plates (26). An adjustment assembly is provided inside each of the two concave plates (26). A scraper assembly (3) is installed at the lower end of each adjustment assembly. The scraper assembly (3) includes a support plate (31) connected to the adjustment assembly. Springs (36) are symmetrically installed at the lower end of the support plate (31). Limiting holes (32) are symmetrically provided at the upper end of the support plate (31). Limiting posts (33) are movably inserted into the inner cavity of the limiting holes (32). A concave frame (34) is installed at the lower end of the two limiting posts (33). A groove (35) is provided at the upper end of the concave frame (34). The lower end of the spring (36) is installed in the inner cavity of the groove (35). A scraper (37) is provided in the inner cavity of the concave frame (34).

2. A high-precision screen printing component for stand-up label production according to claim 1, characterized in that, The fixing frame (1) includes a top plate (11), support columns (12) and a bottom plate (13). The two ends of the four support columns (12) are connected to the top plate (11) and the bottom plate (13) respectively. Threaded grooves (15) are symmetrically provided on one side of the top plate (11) and the bottom plate (13). Through grooves (14) that are movably inserted into the adjustment component are symmetrically provided on the upper end of the bottom plate (13).

3. A high-precision screen printing component for stand-up label production according to claim 2, characterized in that, A support frame (4) is provided on one side of the top plate (11) and the bottom plate (13). The support frame (4) is screwed to the threaded groove (15) on the outside of the top plate (11) and the bottom plate (13) by four sets of first bolts (5).

4. A high-precision screen printing component for stand-up label production according to claim 1, characterized in that, The drive assembly includes a mounting plate (21) and a support base (25) mounted on the upper end of the base plate (13). A servo motor (22) is mounted on one side of the mounting plate (21). The output end of the servo motor (22) is connected to a drive shaft (23). One end of the drive shaft (23) is rotatably connected to the support base (25). A gear (24) that meshes with a gear plate (27) is mounted on the outer side of the drive shaft (23).

5. A high-precision screen printing component for stand-up label production according to claim 1, characterized in that, The adjustment assembly includes a support rod (28) movably disposed inside the concave plate (26). Both sides of the support rod (28) are integrally connected with limit strips (213). Both sides of the concave plate (26) are provided with limit grooves (212) that slide with it. A fixing block (211) is installed at the lower end of the support rod (28). The fixing block (211) is screwed to the support plate (31). A bearing (214) is installed at the upper end of the support rod (28). An adjusting bolt (216) is rotatably installed in the middle of the bearing (214). A cover plate (215) is installed at the upper end of the concave plate (26). The adjusting bolt (216) is threadedly rotatably connected to the middle of the cover plate (215).

6. A high-precision screen printing component for stand-up label production according to claim 5, characterized in that, Connecting rods (29) are symmetrically installed on the outer side of each concave plate (26), and positioning sleeves (210) that are movably connected to the support column (12) are installed on the outer side of each connecting rod (29).

7. A high-precision screen printing component for stand-up label production according to claim 1, characterized in that, The scraper (37) has symmetrical through holes (38) on its outer side, and the concave frame (34) is screwed with a nut (310) after passing through the through holes (38) by a second bolt (39).

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