Angle-adjustable printing scraper

Abstract

The utility model relates to the technical field of solder paste printing, in particular to an angle-adjustable printing scraper which comprises a support cross beam, fixing modules and a scraper rest base, the fixing modules are installed on the two sides of the support cross beam, two kinds of positioning pins are arranged on the fixing modules, and movable positioning pins can move through pin holes formed in the fixing modules. A knife rest base is installed below the support cross beam and comprises a base body, a blade and a pressing plate. The printing scraper designed by the utility model has the beneficial effects that the knife rest base can rotate according to the angle of the planet hole through the central hole and the planet hole which are formed in the fixed module, so that the use requirements of different angles are met, and meanwhile, the movable positioning pin is designed to ensure that the knife rest base can be rotated according to the angle of the planet hole on the premise of not taking down the knife rest base. The angle of the blade is changed to facilitate work.

Description

Technical Field

[0001] The utility model relates to the field of solder paste printing, and particularly to a printing squeegee with adjustable angle. Background Technique

[0002] Stencil printing refers to a printing method in which solder paste is scraped into the mesh holes of a stencil with holes, and finally falls onto the PCB substrate, brushing a large number of fixed positions on the substrate with solder paste to prepare for subsequent chip soldering. During the printing operation, the angle of the printing squeegee, as an important printing adjustment parameter, affects the final printing effect. The conventional method is to prepare squeegees with multiple angles for each printing machine, and according to the operation requirements, replace the squeegees with different angles (45°, 50°, 55°, 60°). And there are multiple printing machines in a conventional SMT workshop. In order to meet the printing operation simultaneously, multiple sets of squeegees with different angles need to be prepared, which requires a large amount of cost.

[0003] For the Chinese patent document with the publication number CN220198865U, it discloses a squeegee device with adjustable printing angle, which includes: a tool rest beam; a plurality of squeegee slots, arranged at intervals on the tool rest beam. The squeegee slots are recessed from the bottom surface of the tool rest beam and extend along the longitudinal direction of the tool rest beam to penetrate through both end faces of the tool rest beam. The plurality of squeegee slots are inclined in the horizontal direction, and the inclination angles of the plurality of squeegee slots are different; a squeegee, detachably inserted into one of the plurality of squeegee slots; and an anti-overflow component, arranged on the tool rest beam. The squeegee device of this application realizes the requirements of different production lines for the inclination angle of the squeegee by setting squeegee slots with different inclination angles. Compared with the prior art, the squeegee device of this application has a simple structure, is convenient for subsequent maintenance, has high stability, high printing quality, simple operation, high universality, and high printing efficiency.

[0004] In the above solution and the prior art, when installing and using the printing squeegee, the position and angle of the blade are fixed by screws. However, when the angle of the blade needs to be changed, most components need to be disassembled, the angle needs to be recalibrated, and then reinstalled. The operation process is relatively cumbersome and affects work efficiency.

[0005] Therefore, the utility model proposes a direct drinking water purification device to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a printing squeegee with adjustable angle to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A printing squeegee with adjustable angle, including: a support crossbeam, a fixing module, a tool rest base, and an internal hexagonal fixing screw;

[0008] Fixing modules are arranged on both sides of the support beam, and a tool holder base is arranged on the bottom of the support beam.

[0009] Preferably, the fixing module includes a fixed positioning pin, a movable positioning pin, a pin hole and a baffle; the fixed positioning pin is installed inside the fixing module, the movable positioning pin is fixed by a pin hole arranged at the lower part of the fixing module, and the baffle is arranged at a position close to the outer side of the pin hole.

[0010] Preferably, the movable positioning pin comprises an internal slit, a spring and a crescent plate; the internal slit is arranged in the middle of the movable positioning pin, the spring is installed in the middle of the internal slit, and the crescent plate is arranged on both sides of the movable positioning pin close to the outer side.

[0011] Preferably, the tool holder base includes a base body, a blade, a pressure plate, a mounting hole, a mounting screw, a center hole and a planetary hole; the base body, the blade and the pressure plate are all provided with mounting holes at the same position, and the mounting screws connect the three components through the mounting holes.

[0012] Preferably, the center hole and the planetary holes are both arranged on both sides of the base body, and the center hole is equidistant from any of the planetary holes.

[0013] Preferably, the hexagon socket fixing screw connects the bracket beam and the fixing module.

[0014] Compared with the prior art, the beneficial effect of the utility model is that through the flexibly detachable movable positioning pins and the planetary holes installed on the base body, the angle of the tool holder base can be conveniently changed, thereby changing the angle of the blade, making it easier to work, reducing the time spent on changing the angle, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the printing scraper with adjustable angle of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the angle-adjustable printing scraper holder base of the utility model;

[0017] Figure 3 This is a schematic diagram of the crossbeam structure of the printing scraper support with adjustable angle of the utility model;

[0018] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0019] Figure 5 The utility model is a schematic diagram of the structure of the movable positioning pin of the printing scraper with adjustable angle.

[0020] In the figure: support crossbeam 1, fixed module 2, fixed positioning pin 21, movable positioning pin 22, internal gap 221, spring 222, crescent plate 223, pin hole 23, baffle 24, tool rest base 3, base body 31, blade 32, pressing plate 33, mounting hole 34, mounting screw 35, center hole 36, planetary hole 37, hexagon socket head cap screw 4. Detailed implementation mode

[0021] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: an adjustable-angle printing squeegee, including: support crossbeam 1, fixed module 2, tool rest base 3 and hexagon socket head cap screw 4; fixed modules 2 are arranged on both sides of the support crossbeam 1, and a tool rest base 3 is arranged at the bottom of the support crossbeam 1; the fixed module 2 includes a fixed positioning pin 21, a movable positioning pin 22, a pin hole 23 and a baffle 24; the fixed positioning pin 21 is installed inside the fixed module 2, the movable positioning pin 22 is fixed through the pin hole 23 arranged at the lower part of the fixed module 2, and the baffle 24 is arranged at a position close to the outside of the pin hole 23.

[0024] During use, the support crossbeam 1 and the fixed module 2 are installed through the hexagon socket head cap screw 4. The fixed positioning pin 21 is arranged at the upper inner side positions of the two fixed modules 2 and is tightly connected. Press the side with a gap of the movable positioning pin 22 to deform it so that it can be inserted into the pin hole 23 through the inner side of the fixed module 2 and extend out through the gaps on both sides of the baffle 24 to be stuck.

[0025] Please refer to Figures 3-5 , the movable positioning pin 22 includes an internal gap 221, a spring 222 and a crescent plate 223; the internal gap 221 is arranged in the middle of the movable positioning pin 22, the spring 222 is installed in the middle of the internal gap 221, and the crescent plate 223 is arranged at the two edge positions close to the outside of the movable positioning pin 22.

[0026] When in use, the spring 222 is fixed on the internal gap 221 in the middle of the movable positioning pin 22. When the movable positioning pin 22 is inserted through the pin hole 23, one end of the crescent plate 223 is pressed to deform it and insert it into the pin hole 23. At the end of the pin hole 23, the spring 222 touches the baffle 24, and the crescent plate 223 extends out through the gaps on both sides of the baffle 24 and returns to its original state. The crescent plate 223 prevents the movable positioning pin 22 from falling out. When it needs to be pulled out, the crescent plate 223 is pressed to push the movable positioning pin 22 inward to pull it out.

[0027] See also Figures 1-2 The tool holder base 3 includes a base body 31, a blade 32, a pressure plate 33, a mounting hole 34, a mounting screw 35, a center hole 36 and a planetary hole 37; the base body 31, the blade 32 and the pressure plate 33 are all provided with a mounting hole 34 at the same position, and the mounting screw 35 connects the three components through the mounting hole 34.

[0028] When in use, the base body 31 , the blade 32 and the pressing plate 33 are aligned, and the three components are tightly connected using the mounting screws 35 .

[0029] See also Figure 2 The center hole 36 and the planetary holes 37 are both arranged on both sides of the base body 31 , and the center hole 6 is equidistant from any of the planetary holes 37 .

[0030] In actual use, install the bracket beam 1, the fixed module 2 and the tool holder base 3, pull out the movable positioning pin 22 to the outside, select the planetary hole 37 corresponding to the required angle, and then release the movable positioning pin 22. The movable positioning pin 22 is positioned in the planetary hole 37 by the spring 222. When the angle needs to be changed, just repeat the above steps to quickly change the blade angle.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable-angle printing squeegee, characterized in that: The printing scraper with adjustable angle comprises: a support beam (1), a fixing module (2), a blade holder base (3) and a hexagon socket fixing screw (4); Fixing modules (2) are provided on both sides of the support crossbeam (1), and a tool holder base (3) is provided at the bottom of the support crossbeam (1).

2. The adjustable-angle printing squeegee according to claim 1, wherein: The fixing module (2) comprises a fixed positioning pin (21), a movable positioning pin (22), a pin hole (23) and a baffle (24); the fixed positioning pin (21) is installed inside the fixing module (2), the movable positioning pin (22) is fixed by means of a pin hole (23) arranged at the lower part of the fixing module (2), and the baffle (24) is arranged at a position close to the outer side of the pin hole (23).

3. The adjustable-angle printing squeegee according to claim 2, wherein: The movable positioning pin (22) comprises an internal slit (221), a spring (222) and a crescent plate (223); the internal slit (221) is arranged in the middle of the movable positioning pin (22), the spring (222) is installed in the middle of the internal slit (221), and the crescent plate (223) is arranged on two edges of the movable positioning pin (22) close to the outside.

4. The adjustable-angle printing squeegee according to claim 1, characterized in that: The tool holder base (3) comprises a base body (31), a blade (32), a pressure plate (33), a mounting hole (34), a mounting screw (35), a center hole (36) and a planetary hole (37); the base body (31), the blade (32) and the pressure plate (33) are all provided with a mounting hole (34) at the same position, and the mounting screw (35) connects the three components through the mounting hole (34).

5. The adjustable-angle printing squeegee according to claim 4, characterized in that: The central hole (36) and the planetary holes (37) are both arranged on two sides of the base body (31), and the central hole (36) is equidistant from any of the planetary holes (37).

6. The adjustable-angle printing squeegee according to claim 1, wherein: The hexagon socket fixing screw (4) connects the support beam (1) and the fixing module (2).

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