Screen printing machine convenient to align
By using the gravity of the substrate for self-clamping through the positioning mechanism, the problem of local deformation and damage when installing brittle materials in screen printing machines is solved, achieving non-destructive and stable alignment and clamping.
Patent Information
- Application Number
- CN202423153200.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-20
AI Technical Summary
When installing heavy substrates, especially brittle materials such as glass or ceramics, existing screen printing machines are prone to local deformation, cracks or breakage due to bolt fixing methods, making it difficult to achieve stable and non-destructive alignment.
The positioning mechanism, including a fixing box, support plate, connecting rod, rack, gear and clamping assembly, uses the gravity of the substrate for self-clamping and positioning, avoiding the use of bolts or other tools, and achieves stable clamping of the substrate through the cooperation of gear and rack.
It effectively avoids localized stress concentration on the substrate, reduces the risk of damage, and achieves precise alignment and stable clamping without damage.
Smart Images
Figure CN223507895U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of printing technology, specifically relating to a screen printing machine that facilitates alignment. Background Technology
[0002] A screen printing machine is a device used to transfer ink or other printing media onto a substrate through a screen. Screen printing machines can transfer complex patterns, text, or images onto substrates of various materials with high precision. By precisely controlling the transfer of ink through the screen, screen printing can achieve fine lines, text, and graphics.
[0003] While bolt-fixing of the substrate in screen printing machines does provide high stability and precise alignment, this method often requires significant force to ensure stability when dealing with heavy substrates. In such cases, the area around the bolt holes may experience high mechanical stress, which can easily lead to localized deformation, cracking, or damage to the substrate, especially when the substrate is made of brittle materials such as glass or ceramics. Utility Model Content
[0004] The purpose of this invention is to provide a screen printing machine that facilitates alignment, thereby addressing the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A screen printing machine that facilitates alignment, comprising a screen printing machine body;
[0007] The positioning mechanism includes a fixed box fixedly installed on the outer surface of the screen printing machine body, a support plate disposed on the outside of the fixed box, a connecting rod fixedly connected to the bottom of the support plate, a rack fixedly connected to the through end of the connecting rod, a first spur gear meshing with the outer surface of the rack, a drive rod fixedly connected to the inner surface of the first spur gear, a first bevel gear fixedly sleeved on the outer surface of the drive rod, a second bevel gear meshing with the outer surface of the first bevel gear, a driven rod fixedly connected to the inner surface of the second bevel gear, and a clamping assembly capable of clamping and positioning itself using the gravity of the printing substrate.
[0008] As a preferred embodiment of the present invention, the clamping assembly includes a second spur gear fixedly installed at the through end of the driven rod, a gear disk meshing with the outer surface of the second spur gear, arc-shaped grooves respectively opened on both sides of the gear disk, and a drive column that slides in contact with the inner wall of the arc-shaped groove.
[0009] In a preferred embodiment of this utility model, the outer surface of the connecting rod slides in contact with the inner surface of the fixing box, and a rotating bearing sleeve is installed at the connection between the driven rod and the fixing box.
[0010] In a preferred embodiment of this utility model, the gear disc is fixedly mounted on the outer surface of the fixed box by bearings, and the gear disc is located at the top center of the fixed box.
[0011] As a preferred embodiment of this utility model, the clamping assembly further includes a driven bar fixedly connected to the outer end face of the drive column, a clamping plate fixedly installed at the other end of the driven bar, and a limiting frame fixedly connected to the outer surfaces of both sides of the fixing box and used in conjunction with the driven bar.
[0012] As a preferred embodiment of this utility model, the positioning mechanism further includes a spring fixedly installed on the inner wall of the fixing box and used in conjunction with the rack, and a fixing plate fixedly connected to the inner wall of the fixing box and used in conjunction with the drive rod.
[0013] In a preferred embodiment of this utility model, the outer surface of the clamping plate slides in contact with the inner wall of the limiting frame, the outer end face of the spring is fixedly connected to the outer surface of the rack, and the outer end face of the drive rod is fixedly mounted on the outer surface of the fixing plate through a bearing.
[0014] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation between the components in the positioning mechanism, when facing a large substrate, it is possible to clamp and position the substrate by its own weight without using bolts or other disassembly tools, thus effectively avoiding the problem of local stress concentration and reducing the risk of damage to the substrate. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the fixing box in this utility model;
[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the local structure at point A;
[0019] Figure 4 This is a partial structural diagram of the clamping component in this utility model.
[0020] In the diagram: 100, main body of the screen printing machine; 200, positioning mechanism; 201, fixing box; 202, support plate; 203, connecting rod; 204, rack; 205, first spur gear; 206, drive rod; 207, first bevel gear; 208, second bevel gear; 209, driven rod; 210, clamping assembly; 210a, second spur gear; 210b, gear plate; 210c, arc groove; 210d, drive column; 210e, driven bar; 210f, clamping plate; 210g, limiting frame; 211, spring; 212, fixing plate. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0024] Example
[0025] Reference Figures 1-4 This embodiment of the present invention provides a screen printing machine that facilitates alignment, enabling the printing substrate to be clamped and positioned by its own weight without the need for bolts or other disassembly tools.
[0026] The main body of the screen printing machine is 100.
[0027] It should be noted that the screen printing machine body 100 can transfer a relatively thick ink layer, which is suitable for applications that require a thick coating. By adjusting the mesh count of the screen and the viscosity of the ink, the ink thickness can be controlled to meet different process requirements. The screen printing machine body 100 is existing technology, and this solution will not describe it in detail. Moreover, those skilled in the art can clearly understand its working principle.
[0028] The positioning mechanism 200 includes a fixed box 201 fixedly installed on the outer surface of the screen printing machine body 100, a support plate 202 disposed on the outside of the fixed box 201, a connecting rod 203 fixedly connected to the bottom of the support plate 202, a rack 204 fixedly connected to the through end of the connecting rod 203, a first spur gear 205 meshing with the outer surface of the rack 204, a drive rod 206 fixedly connected to the inner surface of the first spur gear 205, a first bevel gear 207 fixedly sleeved on the outer surface of the drive rod 206, a second bevel gear 208 meshing with the outer surface of the first bevel gear 207, a driven rod 209 fixedly connected to the inner surface of the second bevel gear 208, and a clamping assembly 210 capable of clamping and positioning itself using the pressure of the printing substrate.
[0029] It should be noted that the support plate 202 is used to support the printing substrate. When the printing substrate is placed on top of the support plate 202, it can drive the support plate 202 and the connecting rod 203 to press down, so that the connecting rod 203 drives the rack 204 to move linearly. The rack 204 drives the first spur gear 205, the drive rod 206 and the first bevel gear 207 to rotate. Then, through the cooperation of the first bevel gear 207 and the second bevel gear 208, the driven rod 209 is driven to rotate.
[0030] Specifically, the clamping assembly 210 includes a second spur gear 210a fixedly installed at the through end of the driven rod 209, a gear disk 210b meshing with the outer surface of the second spur gear 210a, arc-shaped grooves 210c respectively opened on both sides of the gear disk 210b, and a drive column 210d that slides in contact with the inner wall of the arc-shaped groove 210c.
[0031] It should also be noted that when the driven rod 209 rotates, it can drive the second spur gear 210a to rotate synchronously, so that the second spur gear 210a drives the gear disk 210b and the two arc-shaped grooves 210c to rotate, so that the arc-shaped grooves 210c squeeze the drive column 210d.
[0032] Furthermore, the outer surface of the connecting rod 203 slides in contact with the inner surface of the fixed box 201, and a rotating bearing sleeve is installed at the connection between the driven rod 209 and the fixed box 201.
[0033] Preferably, the gear disk 210b is fixedly mounted on the outer surface of the fixed box 201 by bearings, and the gear disk 210b is located at the top center of the fixed box 201.
[0034] It should be noted that the clamping assembly 210 also includes a driven bar 210e fixedly connected to the outer end face of the drive column 210d, a clamping plate 210f fixedly installed on the other end of the driven bar 210e, and a limiting frame 210g fixedly connected to the outer surfaces of both sides of the fixing box 201 and used in conjunction with the driven bar 210e.
[0035] Specifically, the driven bar 210e is limited by the limiting frame 210g, which limits the drive column 210d. As a result, the two drive columns 210d are squeezed by the two arc-shaped grooves 210c, which respectively drive the two driven bars 210e and the clamping plate 210f to move towards each other in the direction closer to the support plate 202, so that the clamping plate 210f clamps and positions the substrate.
[0036] Furthermore, the positioning mechanism 200 also includes a spring 211 fixedly installed on the inner wall of the fixed box 201 and used in conjunction with the rack 204, and a fixing plate 212 fixedly connected to the inner wall of the fixed box 201 and used in conjunction with the drive rod 206.
[0037] It should be explained that the spring 211 is used to reset the rack 204, and the fixing plate 212 is used to support the drive rod 206 to prevent the drive rod 206, the spur gear 205 and the first bevel gear 207 from falling off.
[0038] Specifically, the outer surface of the clamping plate 210f slides in contact with the inner wall of the limiting frame 210g, the outer end face of the spring 211 is fixedly connected to the outer surface of the rack 204, and the outer end face of the drive rod 206 is fixedly installed on the outer surface of the fixing plate 212 through a bearing.
[0039] In use, the printing substrate is placed on top of the support plate 202. The substrate causes the support plate 202 and connecting rod 203 to press down, causing the connecting rod 203 to drive the rack 204 to move linearly. At the same time, the rack 204 applies pressure to the spring 211. The rack 204 drives the first spur gear 205, drive rod 206, and first bevel gear 207 to rotate. Then, through the engagement of the first bevel gear 207 and the second bevel gear 208, the driven rod 209 is driven to rotate. The driven rod 209 then drives the second spur gear 210a to rotate synchronously, causing the second spur gear 210a to drive the gear disk 210b and... The two arc-shaped grooves 210c rotate, causing them to press against the drive column 210d. The limiting frame 210g limits the driven strip 210e, which in turn limits the drive column 210d. As a result, the two drive columns 210d, through the pressing of the two arc-shaped grooves 210c, drive the two driven strips 210e and the clamping plate 210f to move towards each other in a direction closer to the support plate 202. This allows the clamping plate 210f to clamp and position the substrate, achieving the effect of clamping and positioning the substrate by its own weight without the need for bolts or other disassembly tools.
[0040] After printing: Slightly lift the substrate upwards to move it to a position where it is no longer in contact with the support plate 202. The reaction force of the spring 211 resets the rack 204, connecting rod 203, and support plate 202. Then, the rack 204 drives the first spur gear 205, drive rod 206, and first bevel gear 207 to rotate in opposite directions. Then, through the cooperation of the first bevel gear 207 and the second bevel gear 208, the driven rod 209 and the second spur gear 210a rotate in opposite directions. The second spur gear 210a drives the gear plate 210b and the two arc-shaped grooves 210c to reset. Then, through the cooperation of the arc-shaped grooves 210c and the drive column 210d, the driven bar 210e and the clamping plate 210f are reset, thereby releasing the clamping plate 210f from limiting the substrate.
[0041] In summary, through the cooperation between the components of the positioning mechanism 200, when dealing with heavy printing substrates, it is possible to clamp and position the substrates using only their own weight without the need for bolts or other disassembly tools. This effectively avoids the problem of local stress concentration and reduces the risk of substrate damage.
[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A screen printing machine that facilitates alignment, characterized in that: include, Screen printing machine body (100); The positioning mechanism (200) includes a fixed box (201) fixedly installed on the outer surface of the screen printing machine body (100), a support plate (202) disposed on the outside of the fixed box (201), a connecting rod (203) fixedly connected to the bottom of the support plate (202), a rack (204) fixedly connected to the through end of the connecting rod (203), a first spur gear (205) meshing with the outer surface of the rack (204), a drive rod (206) fixedly connected to the inner surface of the first spur gear (205), a first bevel gear (207) fixedly sleeved on the outer surface of the drive rod (206), a second bevel gear (208) meshing with the outer surface of the first bevel gear (207), a driven rod (209) fixedly connected to the inner surface of the second bevel gear (208), and a clamping assembly (210) capable of clamping and positioning itself using the gravity of the printing substrate.
2. The screen printing machine for easy alignment according to claim 1, characterized in that: The clamping assembly (210) includes a second spur gear (210a) fixedly installed at the through end of the driven rod (209), a gear disk (210b) meshing with the outer surface of the second spur gear (210a), arc-shaped grooves (210c) respectively opened on both sides of the gear disk (210b), and a drive column (210d) that slides in contact with the inner wall of the arc-shaped groove (210c).
3. A screen printing machine for easy alignment according to claim 2, characterized in that: The outer surface of the connecting rod (203) slides in contact with the inner surface of the fixed box (201), and a rotating bearing sleeve is installed at the connection between the driven rod (209) and the fixed box (201).
4. A screen printing machine for easy alignment according to claim 3, characterized in that: The gear disc (210b) is fixedly mounted on the outer surface of the fixed box (201) by bearings, and the gear disc (210b) is located at the top center of the fixed box (201).
5. A screen printing machine for easy alignment according to claim 4, characterized in that: The clamping assembly (210) further includes a driven bar (210e) fixedly connected to the outer end face of the drive column (210d), a clamping plate (210f) fixedly installed at the other end of the driven bar (210e), and a limiting frame (210g) fixedly connected to the outer surfaces of both sides of the fixing box (201) and used in conjunction with the driven bar (210e).
6. A screen printing machine for easy alignment according to claim 5, characterized in that: The positioning mechanism (200) further includes a spring (211) fixedly installed on the inner wall of the fixed box (201) and used in conjunction with the rack (204), and a fixing plate (212) fixedly connected to the inner wall of the fixed box (201) and used in conjunction with the drive rod (206).
7. A screen printing machine for easy alignment according to claim 6, characterized in that: The outer surface of the clamping plate (210f) slides in contact with the inner wall of the limiting frame (210g), the outer end face of the spring (211) is fixedly connected to the outer surface of the rack (204), and the outer end face of the drive rod (206) is fixedly mounted on the outer surface of the fixing plate (212) by a bearing.