SMT printing steel mesh adjusting device

Abstract

The utility model relates to the technical field of printing steel meshes, in particular to an SMT printing steel mesh adjusting device which comprises a bottom plate, a box body and a fixing plate are fixedly installed at the top of the bottom plate, the fixing plate is located on one side of the box body, a fixing frame is arranged between the fixing plate and the box body, and a steel mesh is arranged in the fixing frame. A turnover adjusting mechanism is arranged in the box body, the turnover adjusting mechanism comprises a V-shaped strip used for turnover rotation, clamping mechanisms are arranged on the two sides of the fixing frame, each clamping mechanism comprises a limiting assembly and an inserting assembly, a motor is started to drive a threaded rod to rotate, a sliding block drives a mounting block to move horizontally, and therefore the V-shaped strip moves horizontally; and during translation, the V-shaped strip collides with the limiting groove, so that the shape of the V-shaped strip is changed, the steel mesh is turned over, the other side of the steel mesh is conveniently cleaned, and the cleanliness is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of printed stencils, and in particular to a stencil adjustment device for SMT printed stencils. Background Technology

[0002] Printed stencils are a key tool in electronic manufacturing services for surface mount technology. They are precision-manufactured metal meshes with pre-cut openings that correspond to the locations of solder pads on the circuit board. The primary function of a printed stencil is to precisely print a thin layer of solder paste onto the PCB, providing the necessary adhesion for subsequent electronic component placement and soldering.

[0003] A search revealed that Chinese Patent Publication No. CN214488220U discloses an adjustable loading fixture for printing stencils in the SMT industry. This device allows for adjustment of the distance between two clamping parts and two L-shaped clamping parts according to different sizes of stencils, facilitating the fixing of stencils of different sizes. The fixing method is simple and quick, and the fixing effect of the stencil is good.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: when clamping and cleaning the stencil, manual back-and-forth movement is required to clean the other side, which is a rather cumbersome process. If one side of the stencil is not thoroughly rinsed, solder paste or other contaminants may remain, which will affect the cleanliness of the openings and the printing quality of the stencil, thus affecting its subsequent use. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides an SMT printing stencil adjustment device.

[0006] This application provides an SMT printing stencil adjustment device, including a base plate, a housing and a fixing plate fixedly installed on the top of the base plate, the fixing plate being located on one side of the housing, a fixing frame being provided between the fixing plate and the housing, a stencil being provided inside the fixing frame, a flip adjustment mechanism being provided inside the housing, the flip adjustment mechanism including a V-shaped strip for flipping and rotating, a snap-fit ​​mechanism being provided on both sides of the fixing frame, the snap-fit ​​mechanism including a limiting component and a plug-in component, the limiting component including a limiting block for limiting, the plug-in component including a snap-fit ​​block for fixing, and a movable fixing mechanism being provided on both sides of the base plate, the movable fixing mechanism including an anti-slip pad for anti-slip.

[0007] Optionally, the flipping adjustment mechanism includes a lifting box fixedly installed on the inner wall of the box, a motor box fixedly installed on the front side of the lifting box, a motor fixedly installed on the inner wall of the motor box, threaded rods rotatably connected to the front and rear sides of the inner wall of the lifting box, the output end of the motor being connected to the threaded rods, a sliding block being threadedly connected to the outer wall of the threaded rods, an mounting block being fixedly installed at the bottom of the sliding block, a V-shaped strip being rotatably connected to one side of the mounting block, and a fixing column being fixedly connected to one side of the V-shaped strip.

[0008] Optionally, a fixing strip is fixedly installed on the rear side of the inner wall of the box, a sliding groove is provided on the front side of the fixing strip, a sliding frame is slidably connected inside the sliding groove, a triangular block is fixedly installed on one side of the inner wall of the sliding frame, and a limit groove is provided on the top of the sliding frame.

[0009] Optionally, a sliding groove is provided on one side of the housing and the fixing plate, and the other end of the fixing column is connected to the fixing frame, and the fixing column is connected to the sliding groove.

[0010] Optionally, the limiting component includes two sets of limiting boxes fixedly installed on both sides of the fixed frame. A spring is fixedly installed on the inner side wall of the limiting box. A sliding opening is provided on one side of the limiting box. The limiting block is slidably connected to the sliding opening. The other end of the spring is connected to one side of the limiting block.

[0011] Optionally, the plug-in assembly includes a cover plate disposed on the top of the fixed frame, two rectangular blocks are fixedly installed on both sides of the cover plate, the snap-fit ​​block is fixedly installed at the bottom of the two rectangular blocks, the snap-fit ​​block is snapped into the limiting block, and a plurality of springs are fixedly connected to the bottom of the cover plate, and a pressure plate is fixedly installed at the bottom end of the plurality of springs.

[0012] Optionally, the movable fixing mechanism includes mounting boxes fixedly installed on the left and right sides of the base plate, an electric telescopic rod fixedly installed on the inner top wall of the mounting box, an anti-slip pad connected to the output end of the electric telescopic rod, and multiple casters fixedly installed on the bottom of the base plate.

[0013] In summary, this application has the following beneficial technical effects:

[0014] This utility model, through the coordinated arrangement of components such as a lifting box, motor box, motor, threaded rod, sliding block, mounting block, V-shaped strip, fixed column, fixed strip, sliding groove, sliding frame, triangular block, and sliding channel, enables the motor to rotate the threaded rod, causing the sliding block to move the mounting block, thereby moving the V-shaped strip. During this movement, the V-shaped strip collides with the limiting groove, changing its shape and causing the steel mesh to flip over. This facilitates cleaning of the other side of the steel mesh, effectively improving cleanliness.

[0015] This utility model, through the coordinated arrangement of components such as a limiting box, sliding opening, spring one, limiting block, cover plate, rectangular block, snap-fit ​​block, spring two, and pressure plate, allows for automatic snap-fitting. The steel mesh is manually inserted into the fixing frame, and then the snap-fit ​​block is inserted into the limiting box by holding the cover plate. The snap-fit ​​block presses against the limiting block, causing the limiting block to move to one side. Under the action of spring two, the limiting block restricts the snap-fit ​​block, thus achieving automatic snap-fitting and preventing the steel mesh from falling off during flipping, effectively improving the fixing speed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a cross-sectional structural diagram of the movable fixing mechanism in the embodiments of this application;

[0018] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of structure A in the image;

[0019] Figure 4 This is an embodiment of the present application. Figure 2 Enlarged view of structure B in the image;

[0020] Figure 5 This is a cross-sectional structural diagram of the box in an embodiment of this application.

[0021] Reference numerals: 1. Base plate; 10. Box body; 11. Fixing frame; 12. Fixing plate; 13. Steel mesh; 2. Tilting and adjusting mechanism; 201. Lifting box; 202. Motor box; 203. Motor; 204. Threaded rod; 205. Sliding block; 206. Mounting block; 207. V-shaped strip; 208. Fixing column; 209. Fixing strip; 210. Sliding groove; 211. Sliding frame; 212. Triangular block; 213. 214. Slide groove; 3. Limiting groove; 3. Snap-fit ​​mechanism; 30. Limiting component; 31. Plug-in component; 301. Limiting box; 302. Sliding port; 303. Spring 1; 304. Limiting block; 311. Cover plate; 312. Rectangular block; 313. Snap-fit ​​block; 314. Spring 2; 315. Pressing plate; 4. Moving and fixing mechanism; 41. Mounting box; 42. Electric telescopic rod; 43. Anti-slip mat; 44. Universal wheel. Detailed Implementation

[0022] The following is combined with Figure 1 —5 provides further detailed description of this application.

[0023] This application discloses an SMT printing stencil adjustment device.

[0024] like Figure 1 As shown, an SMT printing stencil adjustment device includes a base plate 1, a housing 10 and a fixing plate 12 fixedly installed on the top of the base plate 1, the fixing plate 12 being located on one side of the housing 10, a fixing frame 11 being provided between the fixing plate 12 and the housing 10, a stencil 13 being provided inside the fixing frame 11, and a flip adjustment mechanism 2 being provided inside the housing 10, the flip adjustment mechanism 2 including a V-shaped strip 207 for flipping and rotating;

[0025] Please see Figure 5 The tilting adjustment mechanism 2 includes a lifting box 201 fixedly installed on the inner wall of the housing 10. A motor box 202 is fixedly installed on the front side of the lifting box 201. A motor 203 is fixedly installed on the inner wall of the motor box 202. Threaded rods 204 are rotatably connected to the front and rear sides of the inner wall of the lifting box 201. The output end of the motor 203 is connected to the threaded rod 204. A sliding block 205 is threadedly connected to the outer wall of the threaded rod 204. An mounting block 206 is fixedly installed at the bottom of the sliding block 205. A V-shaped strip 20... 7 is rotatably connected to one side of the mounting block 206. A fixed post 208 is fixedly connected to one side of the V-shaped strip 207. By starting the motor 203, the threaded rod 204 is driven to rotate, causing the sliding block 205 to drive the mounting block 206 to move horizontally, thereby causing the V-shaped strip 207 to move horizontally. During the horizontal movement, it collides with the limiting groove 214, thereby changing the shape of the V-shaped strip 207, and thus causing the steel mesh 13 to flip over, making it easier to clean the other side of the steel mesh 13, effectively improving cleanliness.

[0026] Please see Figure 5 A fixing strip 209 is fixedly installed on the rear side of the inner wall of the housing 10. A sliding groove 210 is opened on the front side of the fixing strip 209. A sliding frame 211 is slidably connected inside the sliding groove 210. A triangular block 212 is fixedly installed on one side of the inner wall of the sliding frame 211. A limit groove 214 is opened on the top of the sliding frame 211. After flipping, the motor 203 is restarted to reverse the direction, which drives the threaded rod 204 to reverse the direction, so that the sliding block 205 drives the mounting block 206 to move to the other side, so that the V-shaped strip 207 contacts one side of the triangular block 212, so that the V-shaped strip 207 returns to its original shape for the flipping operation.

[0027] Please see Figure 5 The housing 10 and the fixing plate 12 are provided with a sliding groove 213 on one side of the fixing plate 12. The other end of the fixing post 208 is connected to the fixing frame 11. The fixing post 208 is connected to the sliding groove 213. The sliding groove 213 is used to limit the fixing post 208 and prevent the fixing plate 12 from falling off when it is flipped.

[0028] The fixed frame 11 is provided with a snap-fit ​​mechanism 3 on both sides. The snap-fit ​​mechanism 3 includes a limiting component 30 and a plug-in component 31. The limiting component 30 includes a limiting block 304 for limiting, and the plug-in component 31 includes a snap-fit ​​block 313 for fixing.

[0029] Please see Figure 3 The limiting component 30 includes two sets of limiting boxes 301 fixedly installed on both sides of the fixed frame 11. A spring 303 is fixedly installed on the inner side wall of the limiting box 301. A sliding opening 302 is opened on one side of the limiting box 301. The limiting block 304 is slidably connected to the sliding opening 302. The other end of the spring 303 is connected to one side of the limiting block 304. The steel mesh 13 is inserted into the fixed frame 11 by hand. Then, the cover plate 311 is held by hand to insert the snap-fit ​​block 313 into the limiting box 301. The snap-fit ​​block 313 squeezes the limiting block 304, causing the limiting block 304 to move to one side. Under the action of the spring 303, the limiting block 304 limits the snap-fit ​​block 313, thereby realizing automatic snap-fit ​​and preventing the steel mesh 13 from falling off when it is flipped, effectively improving the fixing speed.

[0030] Please see Figure 3 and Figure 4The plug-in assembly 31 includes a cover plate 311 set on the top of the fixed frame 11. Two rectangular blocks 312 are fixedly installed on both sides of the cover plate 311. A snap-fit ​​block 313 is fixedly installed on the bottom of the two rectangular blocks 312. The snap-fit ​​block 313 is snapped into the limiting block 304. Multiple springs 314 are fixedly connected to the bottom of the cover plate 311. A pressure plate 315 is fixedly installed at the bottom end of the multiple springs 314. By manually pressing the pressure plate 315, the limiting block 304 is driven to slide inside the sliding port 302, so that the limiting block 304 compresses the spring 303, causing the limiting block 304 to move horizontally and disengage from the snap-fit ​​block 313, thereby lifting the cover plate 311. This achieves quick disassembly and avoids wasting time by disassembling after cleaning.

[0031] The base plate 1 is provided with movable fixing mechanisms 4 on both sides, and the movable fixing mechanisms 4 include anti-slip pads 43 for anti-slip purposes;

[0032] Please see Figure 2 The movable fixing mechanism 4 includes mounting boxes 41 fixedly installed on the left and right sides of the base plate 1. An electric telescopic rod 42 is fixedly installed on the inner top wall of the mounting box 41. An anti-slip pad 43 is connected to the output end of the electric telescopic rod 42. Multiple casters 44 are fixedly installed on the bottom of the base plate 1. When the device is fixed, the electric telescopic rod 42 is activated, causing the anti-slip pad 43 to contact the ground, thereby detaching the casters 44 from the ground and fixing the device for subsequent use.

[0033] The installed flipping adjustment mechanism 2 is used to flip the steel mesh 13, making it easier to clean the other side of the steel mesh 13 and effectively improving cleanliness. The installed snap-fit ​​mechanism 3 drives the plug-in component 31 to insert into the limiting component 30, so that the limiting component 30 limits the plug-in component 31, realizing quick fixation and preventing the steel mesh 13 from falling off when flipping. The installed moving fixing mechanism 4 is used to move the device so that the device can work in different places.

[0034] The implementation principle of the SMT printing stencil adjustment device in this application embodiment is as follows: A flipping adjustment mechanism 2 is installed to flip the stencil 13, facilitating cleaning of the other side of the stencil 13 and effectively improving cleanliness. A snap-fit ​​mechanism 3 is installed to drive the insertion component 31 into the limiting component 30, causing the limiting component 30 to limit the insertion component 31, achieving rapid fixation and preventing the stencil 13 from falling off during flipping. A movable fixing mechanism 4 is installed to move the device, allowing it to operate in different locations. The motor 203 drives the threaded rod 204 to rotate, causing the sliding block 205 to move the mounting block 206, which in turn moves the V-shaped strip 207. During this translation, the V-shaped strip 207 collides with the limiting groove 214, changing its shape and causing the steel mesh 13 to flip, facilitating cleaning of the other side and effectively improving cleanliness. Restarting the motor 203 reverses the rotation, causing the threaded rod 204 to reverse as well, moving the sliding block 205 and mounting block 206 to the other side, thus allowing the V-shaped strip 207 to collide with the limiting groove 214. One side of the triangular block 212 contacts the V-shaped strip 207, restoring it to its original shape for further flipping. The groove 213 is used to limit the position of the fixed post 208, preventing the fixed plate 12 from falling off during flipping. During loading, the steel mesh 13 is manually inserted into the fixed frame 11, and then the cover plate 311 is manually held to insert the snap-fit ​​block 313 into the limiting box 301. The snap-fit ​​block 313 presses against the limiting block 304, causing the limiting block 304 to move to one side. Under the action of the spring 303, the limiting block 304 engages with the snap-fit ​​block 313. Limiting the position allows for automatic locking, preventing the steel mesh 13 from detaching during rotation and effectively increasing the fixing speed. During disassembly, manually pressing the holding plate 315 causes the limiting block 304 to slide inside the sliding opening 302, compressing the spring 303 and causing the limiting block 304 to move horizontally and disengage from the locking block 313, allowing the cover plate 311 to be lifted quickly. When fixing the device, activating the electric telescopic rod 42 causes the anti-slip pad 43 to contact the ground, detaching the casters 44 from the ground and securing the device for subsequent use.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A stencil adjustment device for SMT printing, comprising a base plate (1), characterized in that: A box (10) and a fixing plate (12) are fixedly installed on the top of the base plate (1). The fixing plate (12) is located on one side of the box (10). A fixing frame (11) is provided between the fixing plate (12) and the box (10). A steel mesh (13) is provided inside the fixing frame (11). A flip adjustment mechanism (2) is provided inside the box (10). The flip adjustment mechanism (2) includes a V-shaped strip (207) for flipping and rotating. A snap-fit ​​mechanism (3) is provided on both sides of the fixing frame (11). The snap-fit ​​mechanism (3) includes a limiting component (30) and a plug-in component (31). The limiting component (30) includes a limiting block (304) for limiting. The plug-in component (31) includes a snap-fit ​​block (313) for fixing. A movable fixing mechanism (4) is provided on both sides of the base plate (1). The movable fixing mechanism (4) includes an anti-slip pad (43) for anti-slip.

2. The SMT printing stencil adjustment device according to claim 1, characterized in that: The flipping adjustment mechanism (2) includes a lifting box (201) fixedly installed on the inner wall of the box (10). A motor box (202) is fixedly installed on the front side of the lifting box (201). A motor (203) is fixedly installed on the inner wall of the motor box (202). Threaded rods (204) are rotatably connected to the front and rear sides of the inner wall of the lifting box (201). The output end of the motor (203) is connected to the threaded rod (204). A sliding block (205) is threadedly connected to the outer wall of the threaded rod (204). An installation block (206) is fixedly installed at the bottom of the sliding block (205). A V-shaped strip (207) is rotatably connected to one side of the installation block (206). A fixing column (208) is fixedly connected to one side of the V-shaped strip (207).

3. The SMT printing stencil adjustment device according to claim 2, characterized in that: A fixing strip (209) is fixedly installed on the rear side of the inner wall of the box (10). A sliding groove (210) is provided on the front side of the fixing strip (209). A sliding frame (211) is slidably connected inside the sliding groove (210). A triangular block (212) is fixedly installed on one side of the inner wall of the sliding frame (211). A limit groove (214) is provided on the top of the sliding frame (211).

4. The SMT printing stencil adjustment device according to claim 3, characterized in that: A sliding groove (213) is provided on one side of the box (10) and the fixing plate (12), and the other end of the fixing column (208) is connected to the fixing frame (11). The fixing column (208) is connected to the sliding groove (213).

5. The SMT printing stencil adjustment device according to claim 1, characterized in that: The limiting component (30) includes two sets of limiting boxes (301) fixedly installed on both sides of the fixed frame (11). A spring (303) is fixedly installed on the inner side wall of the limiting box (301). A sliding opening (302) is opened on one side of the limiting box (301). The limiting block (304) is slidably connected to the sliding opening (302). The other end of the spring (303) is connected to one side of the limiting block (304).

6. The SMT printing stencil adjustment device according to claim 5, characterized in that: The plug-in assembly (31) includes a cover plate (311) disposed on the top of the fixed frame (11). Two rectangular blocks (312) are fixedly installed on both sides of the cover plate (311). The snap-fit ​​block (313) is fixedly installed at the bottom of the two rectangular blocks (312). The snap-fit ​​block (313) is snapped into the limiting block (304). A plurality of springs (314) are fixedly connected to the bottom of the cover plate (311). A pressure plate (315) is fixedly installed at the bottom end of the plurality of springs (314).

7. The SMT printing stencil adjustment device according to claim 1, characterized in that: The movable fixing mechanism (4) includes mounting boxes (41) fixedly installed on the left and right sides of the base plate (1). An electric telescopic rod (42) is fixedly installed on the inner top wall of the mounting box (41). The anti-slip pad (43) is connected to the output end of the electric telescopic rod (42). Multiple casters (44) are fixedly installed on the bottom of the base plate (1).

Images