Screen printing screen positioning structure

Abstract

The utility model discloses a silk screen printing screen positioning structure relates to screen positioning fixture technical field, including installation base, the inboard fixed connection of installation base has installation mechanism, one side fixed connection of installation base has adjusting mechanism, the outside installation of installation mechanism has clamping mechanism, through setting adjusting mechanism, installation mechanism and clamping mechanism etc. parts, through the meshing transmission of adjusting knob drive driving gear and driven gear, cooperate the braking effect of brake lever and return spring, make main support rod can drive clamping mechanism adjustment angle and stable fixed, the position of bush assembly can be adjusted along main support rod and be locked through fixed bolt, the cooperation of height -adjusting screw and lower clamping plate, clamping screw and upper clamping plate can flexible adjustment clamping size and strength, and the device can be adapted to the screen of different size, thickness through the linkage cooperation of each part, solves the poor universality of the positioning structure of existing problem.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic production technology, specifically to a screen printing stencil positioning structure. Background Technology

[0002] In the production of solar cells, screen printing is a commonly used process for precisely printing conductive paste or battery paste onto the cells. The screen printing screen is a key component in this process, determining the quality and precision of the print. The screen printing screen positioning structure, the device used to fix the screen in the correct position, is an important component that helps ensure consistency in the printing position each time, thereby improving production efficiency and quality.

[0003] Traditional screen printing positioning structures are typically quite simple, only achieving basic fixed positioning of the printing screen, which limits the potential for improving printing accuracy. With the development of solar cell technology, the demand for high-precision printing is constantly increasing, leading to the following drawbacks of traditional methods: First, the positioning structure is not adjustable, making it unsuitable for screens of different sizes and thicknesses; second, the screen is prone to shifting or shaking during positioning, resulting in insufficient positioning stability and causing problems such as misalignment and blurring of the printed pattern; third, installing and removing the screen is cumbersome, affecting printing efficiency.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a screen printing stencil positioning structure. Utility Model Content

[0005] The purpose of this utility model is to provide a screen printing stencil positioning structure, which can solve the problems of existing screen printing stencil positioning structures that mostly adopt fixed pins or simple slot designs, resulting in the following defects: First, the positioning structure is not adjustable and cannot be adapted to stencils of different sizes and thicknesses, resulting in poor versatility; Second, the stencil is prone to shifting or shaking during positioning, resulting in insufficient positioning stability and causing problems such as misalignment and blurring of the printed pattern; Third, the installation and removal of the stencil are cumbersome, affecting printing efficiency.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A screen printing stencil positioning structure includes a mounting base. An installation mechanism is fixedly connected to the inner side of the mounting base. An adjustment mechanism is fixedly connected to one side of the mounting base. A clamping mechanism is installed on the outer side of the installation mechanism. The adjustment mechanism includes an adjustment knob, a toggle gear, a brake lever, and a return spring. The adjustment knob is rotatably mounted on the outer wall of the mounting base. The toggle gear is fixedly mounted on the outer wall of the adjustment knob. The brake lever is movably mounted on the top of the mounting base. The top end of the return spring is fixedly connected to the brake lever, and the other end of the return spring is fixedly mounted on the top of the mounting base.

[0008] In one or more embodiments of this utility model, the mounting mechanism includes a main support rod and a driven gear. The main support rod is rotatably disposed on the inner side of the mounting base, and the driven gear is fixedly disposed on the outer wall of the main support rod. The driven gear meshes with the actuating gear for transmission.

[0009] In one or more embodiments of this utility model, the adjusting knob is in a rotating state, the actuating gear is in a state of actuating the driven gear, and a clamping mechanism is installed on the outer side of the main support rod.

[0010] In one or more embodiments of the present invention, the clamping mechanism includes a sleeve assembly, a connecting support plate, a fixing bolt, and a guide bracket. The sleeve assembly is rotatably disposed on the outer wall of the main support rod, the connecting support plate is fixedly disposed on the outer wall of the sleeve assembly, and the fixing bolt passes through the connecting support plate from top to bottom at two locations.

[0011] In one or more embodiments of this utility model, the fixing bolt is used to limit the position of the sleeve assembly on the outer wall of the main support rod, and the guide bracket is fixedly disposed at the front end of the sleeve assembly.

[0012] In one or more embodiments of this utility model, the guide bracket has a longitudinal groove inside.

[0013] In one or more embodiments of the present invention, the clamping mechanism further includes a height adjustment screw, a lower clamping plate, an upper clamping plate, a clamping screw, and a guide rod. The height adjustment screw is rotatably disposed within the guide bracket, and the lower clamping plate is slidably disposed within the guide bracket. The interior of the lower clamping plate has a screw hole that matches the height adjustment screw.

[0014] In one or more embodiments of this utility model, when the height adjustment screw is in the rotating state, the lower clamping plate is in the state of being displaced along the guide bracket by the meshing transmission, the clamping screw is rotatably disposed at the top of the lower clamping plate, and the upper clamping plate is meshed with the outer side of the clamping screw.

[0015] In one or more embodiments of this utility model, the guide rod is fixedly disposed at the bottom end of the upper clamping plate, and the guide rod passes through the lower clamping plate to the downward side.

[0016] In one or more embodiments of the present invention, the mounting mechanism further includes a mounting side plate and a mounting hole, wherein the mounting side plate is fixedly disposed on the outer wall of the mounting base, and the mounting hole is formed inside the mounting side plate.

[0017] Compared with existing technologies, the screen printing screen positioning structure of this utility model, through the setting of adjustment mechanism, installation mechanism and clamping mechanism, etc., drives the engagement of the moving gear and driven gear through the adjustment knob, and with the braking action of the brake rod and return spring, the main support rod can drive the clamping mechanism to adjust the angle and fix it stably. The tube sleeve assembly can be adjusted along the main support rod and locked by the fixing bolt. The cooperation between the height adjustment screw and the lower clamping plate and the clamping screw and the upper clamping plate can flexibly adjust the clamping size and force. This device can adapt to screens of different sizes and thicknesses through the linkage of various components, solving the problem of poor versatility of existing positioning structures. At the same time, the multiple fixing structure prevents screen offset and shaking, improves positioning stability, simplifies the installation and disassembly of screens, and improves printing efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the screen printing stencil positioning structure in one embodiment of the present invention;

[0020] Figure 2 This is a diagram showing the assembly of the mounting base and mounting side plate of the screen printing stencil positioning structure in one embodiment of the present invention;

[0021] Figure 3 This is a front view of the screen printing stencil positioning structure in one embodiment of the present invention;

[0022] Figure 4 This is a diagram showing the assembly of the sleeve component and connecting support plate of the screen printing stencil positioning structure in one embodiment of the present invention;

[0023] Figure 5 This is a diagram showing the combination of the upper and lower clamping plates of the screen printing stencil positioning structure in one embodiment of the present invention.

[0024] Figure 6 This is a cross-sectional view of a screen printing stencil in one embodiment of the present invention.

[0025] Explanation of key figure labels:

[0026] 1. Mounting base; 101. Mounting side plate; 1011. Mounting hole; 1012. Main support rod; 1013. Driven gear; 2. Adjustment knob; 201. Actuating gear; 2011. Brake lever; 2012. Return spring; 3. Tube sleeve assembly; 301. Connecting support plate; 3011. Fixing bolt; 3012. Guide bracket; 3013. Height adjustment screw; 3014. Lower clamping plate; 3015. Upper clamping plate; 3016. Clamping screw; 3017. Guide support rod; 4. Mesh fabric; 401. PI protective film. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0028] like Figures 1-5 As shown, the screen printing stencil positioning structure in one embodiment of this utility model includes a mounting base 1, an installation mechanism fixedly connected to the inner side of the mounting base 1, an adjustment mechanism fixedly connected to one side of the mounting base 1, and a clamping mechanism installed on the outer side of the installation mechanism. The adjustment mechanism includes an adjustment knob 2, a toggle gear 201, a brake lever 2011, and a return spring 2012. The adjustment knob 2 is rotatably disposed on the outer wall of the mounting base 1, the toggle gear 201 is fixedly disposed on the outer wall of the adjustment knob 2, the brake lever 2011 is movably disposed on the top end of the mounting base 1, the top end of the return spring 2012 is fixedly connected to the brake lever 2011, and the other end of the return spring 2012 is fixedly disposed on the top end of the mounting base 1.

[0029] The mounting mechanism includes a main support rod 1012 and a driven gear 1013. The main support rod 1012 is rotatably mounted on the inner side of the mounting base 1, and the driven gear 1013 is fixedly mounted on the outer wall of the main support rod 1012. The driven gear 1013 meshes with the actuating gear 201 for transmission.

[0030] When the adjustment knob 2 is in the rotating state, the actuating gear 201 is in the state of actuating the driven gear 1013 to rotate, and a clamping mechanism is installed on the outside of the main support rod 1012.

[0031] The clamping mechanism also includes a sleeve assembly 3, a connecting support plate 301, a fixing bolt 3011, and a guide bracket 3012. The sleeve assembly 3 is rotatably mounted on the outer wall of the main support rod 1012, the connecting support plate 301 is fixedly mounted on the outer wall of the sleeve assembly 3, and the fixing bolt 3011 passes through the two connecting support plates 301 from top to bottom.

[0032] The fixing bolt 3011 is used to limit the position of the sleeve assembly 3 on the outer wall of the main support rod 1012. The guide bracket 3012 is fixedly installed at the front end of the sleeve assembly 3. The guide bracket 3012 has a longitudinal groove inside.

[0033] The clamping mechanism also includes a height adjustment screw 3013, a lower clamping plate 3014, an upper clamping plate 3015, a clamping screw 3016, and a guide support rod 3017. The height adjustment screw 3013 is rotatably mounted in the guide support 3012, and the lower clamping plate 3014 is slidably mounted in the guide support 3012. The lower clamping plate 3014 has a screw hole inside that matches the height adjustment screw 3013.

[0034] When the height adjustment screw 3013 is rotating, the lower clamping plate 3014 is in a state of being displaced along the guide bracket 3012 under meshing transmission. The clamping screw 3016 is rotatably set at the top of the lower clamping plate 3014. The outer side of the clamping screw 3016 is meshed with the upper clamping plate 3015. The guide support rod 3017 is fixedly set at the bottom of the upper clamping plate 3015. The guide support rod 3017 passes through the lower clamping plate 3014 to the lower side.

[0035] The mounting mechanism also includes a mounting side plate 101 and a mounting hole 1011. The mounting side plate 101 is fixedly disposed on the outer wall of the mounting base 1, and the mounting hole 1011 is opened in the mounting side plate 101.

[0036] In use, the mounting base 1 can be securely installed in the designated position of the printing equipment through the mounting holes 1011 on the mounting side plate 101, providing a fixed foundation for the entire positioning structure. When it is necessary to adjust the overall angle of the screen printing screen, press the brake lever 2011 first. After the brake lever 2011 is pressed, it compresses the return spring 2012 connected to its bottom end. At this time, the brake lever 2011 separates from the actuating gear 201, releasing the braking restriction on the actuating gear 201.

[0037] Next, rotate the adjustment knob 2 on the outer wall of the mounting base 1. When the adjustment knob 2 rotates, it will drive the actuating gear 201 fixedly connected to its outer wall to rotate synchronously. Since the actuating gear 201 and the driven gear 1013 on the outer wall of the main support rod 1012 are in a meshing state, the rotation of the actuating gear 201 will drive the driven gear 1013 to rotate accordingly, thereby driving the main support rod 1012 fixed to the driven gear 1013 to rotate inside the mounting base 1. The rotation of the main support rod 1012 will drive the clamping mechanism installed on its outer side to adjust the angle synchronously.

[0038] Once the clamping mechanism angle is adjusted to the desired position, release the pressed brake lever 2011. The return spring 2012 will no longer be compressed and will return to its original state. The reset force of the return spring 2012 will push the brake lever 2011 upward, causing the brake lever 2011 to re-clamp the actuating gear 201, limiting the actuating gear 201 from continuing to rotate, thereby fixing the position of the main support rod 1012 and ensuring the stability of the clamping mechanism angle.

[0039] When it is necessary to adjust the position of the clamping mechanism on the main support rod 1012, loosen the fixing bolts 3011 that pass through the two connecting support plates 301. At this time, the tube sleeve assembly 3 can slide along the outer wall of the main support rod 1012. When the tube sleeve assembly 3 slides, it will drive the connecting support plate 301 fixed to its outer wall and the guide bracket 3012 at the front end to move synchronously. After the clamping mechanism moves to the appropriate position, tighten the fixing bolts 3011 again. The fixing bolts 3011 restrict the tube sleeve by pressing the connecting support plate 301. The sliding of component 3 on the outer wall of the main support rod 1012 fixes the position of the clamping mechanism. When it is necessary to adapt to screen printing plates of different thicknesses, the height adjustment screw 3013 inside the guide bracket 3012 is rotated. Since the lower clamping plate 3014 has a screw hole that matches the height adjustment screw 3013, the rotation of the height adjustment screw 3013 will drive the lower clamping plate 3014 to slide along the inner side of the guide bracket 3012 through the meshing transmission of the screw hole, thereby adjusting the height of the lower clamping plate 3014.

[0040] After the screen printing stencil is placed, rotate the clamping screw 3016 at the top of the lower clamping plate 3014. The rotation of the clamping screw 3016 will drive the upper clamping plate 3015 to move through the meshing transmission. At the same time, the guide rod 3017 at the bottom of the upper clamping plate 3015 slides along the inner side of the lower clamping plate 3014, providing guidance for the movement of the upper clamping plate 3015, so that the upper clamping plate 3015 moves stably closer to the lower clamping plate 3014. Finally, the upper clamping plate 3015 and the lower clamping plate 3014 cooperate to clamp and fix the screen printing stencil, completing the screen positioning operation.

[0041] Among them, such as Figure 6 As shown, the screen printing stencil includes a screen cloth 4, with protective films 401 on both the upper and lower surfaces to improve its wear resistance and prevent ink leakage. Since the protective film 401 increases the thickness of the screen printing stencil, this positioning structure can accommodate screen printing stencils of different thicknesses for positioning and fixing. Preferably, the material of the protective film 401 can be polyimide (PI), etc., and the thickness of the protective film 401 ranges from 5 to 25 μm, preferably from 10 to 15 μm.

[0042] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screen printing stencil positioning structure, comprising a mounting base, characterized in that, An installation mechanism is fixedly connected to the inner side of the mounting base, and an adjustment mechanism is fixedly connected to one side of the mounting base. A clamping mechanism is installed on the outer side of the installation mechanism. The adjustment mechanism includes an adjustment knob, a toggle gear, a brake lever, and a return spring. The adjustment knob is rotatably mounted on the outer wall of the mounting base, the toggle gear is fixedly mounted on the outer wall of the adjustment knob, the brake lever is movably mounted on the top of the mounting base, the top of the return spring is fixedly connected to the brake lever, and the other end of the return spring is fixedly mounted on the top of the mounting base.

2. The screen printing stencil positioning structure as described in claim 1, characterized in that, The mounting mechanism includes a main support rod and a driven gear. The main support rod is rotatably mounted on the inner side of the mounting base, and the driven gear is fixedly mounted on the outer wall of the main support rod. The driven gear meshes with the actuating gear for transmission.

3. The screen printing stencil positioning structure as described in claim 2, characterized in that, When the adjustment knob is in the rotating state, the actuating gear is in the state of actuating the driven gear, and a clamping mechanism is installed on the outside of the main support rod.

4. The screen printing stencil positioning structure as described in claim 3, characterized in that, The clamping mechanism includes a sleeve assembly, a connecting support plate, a fixing bolt, and a guide bracket. The sleeve assembly is rotatably mounted on the outer wall of the main support rod, the connecting support plate is fixedly mounted on the outer wall of the sleeve assembly, and the fixing bolt passes through the connecting support plate from top to bottom at two locations.

5. The screen printing stencil positioning structure as described in claim 4, characterized in that, The fixing bolt is used to limit the position of the sleeve assembly on the outer wall of the main support rod, and the guide bracket is fixedly installed at the front end of the sleeve assembly.

6. The screen printing stencil positioning structure as described in claim 5, characterized in that, The guide bracket has a longitudinal groove inside.

7. The screen printing stencil positioning structure as described in claim 4, characterized in that, The clamping mechanism further includes a height adjustment screw, a lower clamping plate, an upper clamping plate, a clamping screw, and a guide support rod. The height adjustment screw is rotatably mounted inside the guide support, and the lower clamping plate is slidably mounted inside the guide support. The interior of the lower clamping plate has a screw hole that matches the height adjustment screw.

8. The screen printing stencil positioning structure as described in claim 7, characterized in that, When the height adjustment screw is rotating, the lower clamping plate is in a state of being displaced along the guide bracket under meshing transmission. The clamping screw is rotatably mounted on the top of the lower clamping plate, and the upper clamping plate is meshed with the outer side of the clamping screw.

9. The screen printing stencil positioning structure as described in claim 8, characterized in that, The guide rod is fixedly installed at the bottom end of the upper clamping plate, and the guide rod passes through the lower clamping plate downwards.

10. The screen printing stencil positioning structure as described in claim 1, characterized in that, The mounting mechanism also includes a mounting side plate and mounting holes. The mounting side plate is fixedly disposed on the outer wall of the mounting base, and the mounting holes are opened inside the mounting side plate.

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