Steel mesh cleaning mechanism

Abstract

The utility model provides a steel mesh cleaning mechanism which comprises a supporting plate and a cleaning scraper assembly, the supporting plate is arranged below a steel mesh and can move from one end of the steel mesh to the other end of the steel mesh, the cleaning scraper assembly is arranged at the upper end of the supporting plate and can ascend and descend, and the cleaning scraper assembly comprises a scraper fixing base, a scraper and a first lifting mechanism. A scraper containing groove is formed in the upper end of the scraper fixing base, the scraper is installed in the scraper containing groove, the upper end of the scraper is higher than the upper end of the scraper containing groove, and a first vacuumizing hole is formed in the bottom of the scraper containing groove. The first lifting mechanism comprises two first lifting air cylinders which are symmetrically arranged at the two ends of the scraper fixing base and can drive the scraper fixing base to ascend and descend. According to the steel mesh cleaning device, the steel mesh is cleaned through the scraper, the steel mesh cleaning device can be reused, the cleaning cost is reduced, the steel mesh can be wetted with alcohol through the steel mesh wetting sponge roller, and the cleaning effect can be improved.

Description

Technical Field

[0001] The utility model relates to the field of PCB printing equipment, in particular to a steel mesh cleaning mechanism. Background Art

[0002] When the PCB solder paste printer prints solder paste on the PCB board, a steel mesh is set on the PCB board, and then tin is applied by a scraper. After the tin application is completed, there will be residual solder paste on the steel mesh. In order not to affect the next use, the existing PCB printer is equipped with a separate mechanism for cleaning the steel mesh. The cleaning mechanism cleans the bottom of the steel mesh with paper. This method of cleaning with paper is costly, cannot be recycled, is not environmentally friendly, and the paper is easy to break, and the cleaning effect is not particularly good. Utility Model Content

[0003] In order to solve the problems of high cost and environmental pollution of paper cleaning in the prior art, the utility model provides a steel mesh cleaning mechanism that can be recycled.

[0004] The utility model provides a steel mesh cleaning mechanism, including a support plate arranged below the steel mesh and capable of moving along one end of the steel mesh to the other end, and a cleaning scraper assembly arranged at the upper end of the support plate and capable of being lifted and lowered, the cleaning scraper assembly including a scraper fixing seat, a scraper and a first lifting mechanism, a scraper accommodating groove is provided at the upper end of the scraper fixing seat, the scraper is installed in the scraper accommodating groove and the upper end of the scraper is higher than the upper end of the scraper accommodating groove, a first vacuum hole is provided at the bottom of the scraper accommodating groove, and the first lifting mechanism includes two first lifting cylinders symmetrically arranged at both ends of the scraper fixing seat and capable of driving the scraper fixing seat to lift and lower.

[0005] As a further improvement of the present utility model, the steel mesh cleaning mechanism also includes a steel mesh wetting assembly arranged on the upper end of the support plate and parallel to the cleaning scraper assembly, the steel mesh wetting assembly includes a steel mesh wetting sponge roller, a first brush, a first brush fixing seat, a first rotating mechanism and a second lifting mechanism, the upper end of the first brush fixing seat is provided with a first brush accommodating groove, the first brush is installed in the first brush accommodating groove, the steel mesh wetting sponge roller is attached to the upper end of the first brush, and a second vacuum hole is provided at the bottom of the first brush accommodating groove, the first rotating mechanism includes a first driving motor fixed on the support plate, a driving gear connected to the output end of the first driving motor, and a driven gear fixedly connected to one end of the steel mesh wetting sponge roller and capable of matching with the driving gear, the second lifting mechanism includes two second lifting cylinders symmetrically arranged at both ends of the first brush fixing seat and capable of driving the first brush fixing seat and the steel mesh wetting sponge roller to rise and fall simultaneously.

[0006] As a further improvement of the utility model, the steel mesh cleaning mechanism also includes an alcohol spraying mechanism, and the alcohol spraying mechanism includes a first nozzle assembly which is arranged on one side of the steel mesh wetting sponge roller and can spray alcohol thereon.

[0007] As a further improvement of the present invention, the steel mesh cleaning mechanism also includes a scraper cleaning assembly arranged on one side of the support plate and parallel to the cleaning scraper assembly, the scraper cleaning assembly includes a translation plate, a carrying plate, a scraper cleaning sponge roller, a second brush, a second brush fixing seat, a translation mechanism, a second rotating mechanism, a third rotating mechanism and a third lifting mechanism, the second brush fixing seat is arranged at one end of the translation plate, a second brush accommodating groove is arranged at the upper end of the second brush fixing seat, the second brush is arranged in the second brush accommodating groove, and a third vacuum hole is arranged at the bottom of the second brush accommodating groove, the translation mechanism includes a translation guide rail arranged on one side of the translation plate, a second brush fixing seat is arranged on the carrying plate, a second brush fixing seat is arranged on the upper end of the second brush fixing seat, the second brush is arranged in the second brush accommodating groove, and a third vacuum hole is arranged at the bottom of the second brush accommodating groove, The translatory slider is at one end of the plate and is adapted to the translatory guide rail, a translatory transmission belt drives the carrier plate to move left and right, and a translatory motor is arranged on the translatory plate and used to drive the translatory transmission belt. The second rotating mechanism includes a second drive motor installed on the upper end of the carrier plate and a coupling used to connect the output end of the second drive motor and one end of the scraper cleaning sponge roller. The third rotating mechanism is fixed to one end of the carrier plate and can drive the second drive motor to rotate horizontally so that its scraper cleaning sponge roller reciprocates between the upper end of the second brush and the upper end of the scraper. The third lifting mechanism includes a third lifting cylinder which is arranged below the translatory plate and can drive the translatory plate to rise and fall.

[0008] As a further improvement of the utility model, the alcohol spraying mechanism also includes a second nozzle assembly which is arranged on one side of the scraper cleaning sponge roller and can spray alcohol thereon.

[0009] As a further improvement of the present invention, the alcohol spraying mechanism is fixed on the supporting plate.

[0010] As a further improvement of the utility model, the scraper includes a plurality of blades arranged side by side and a blade block for fixing the plurality of blades. A positioning pin detachably connected to the blade block is provided on one side of the scraper fixing seat. Fixed pressure blocks pressed on both ends of the plurality of blades are also provided at both ends of the scraper fixing seat.

[0011] As a further improvement of the present invention, the third lifting mechanism further includes a lifting bracket and a lifting guide rail assembly disposed between the lifting bracket and the translation plate.

[0012] As a further improvement of the utility model, the third rotating mechanism includes a linear motion cylinder fixed on the supporting plate and a connecting rod with one end hinged to the output end of the linear motion cylinder. A rotating seat is provided between the second driving motor and the supporting plate, and one side of the rotating seat is hinged to the other end of the connecting rod.

[0013] As a further improvement of the utility model, the steel mesh cleaning mechanism also includes a vacuum pumping device, and the first vacuum pumping hole, the second vacuum pumping hole and the third vacuum pumping hole are all connected to the vacuum pumping device through a connecting pipe.

[0014] The beneficial effects of the utility model are as follows: the utility model cleans the steel mesh by a scraper, which can be reused to reduce the cleaning cost; and the steel mesh can be wetted with alcohol by arranging a steel mesh wetting sponge roller, which can improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a steel mesh cleaning mechanism of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a steel mesh cleaning mechanism of the utility model from another angle;

[0017] Figure 3 It is a schematic diagram of the structural decomposition of a cleaning scraper assembly of a steel mesh cleaning mechanism of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the exploded structure of a steel mesh wetting component of a steel mesh cleaning mechanism.

[0019] Figure markings: 1-support plate; 2-cleaning scraper assembly; 3-steel mesh wetting assembly; 4-alcohol injection mechanism; 5-scraper cleaning assembly; 21-scraper fixing seat; 22-scraper; 23-first lifting cylinder; 24-blade block; 25-fixed pressure block; 31-steel mesh wetting sponge roller; 32-first brush; 33-first brush fixing seat; 34-first drive motor; 35-second lifting cylinder; 51-translation plate; 52-carrying plate; 53-scraper cleaning sponge roller; 54-second brush; 55-second brush fixing seat; 56-second rotating mechanism; 57-third rotating mechanism; 58-translation mechanism; 59-third lifting mechanism. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that if there are descriptions involving orientation, such as orientations or positional relationships indicated by up, down, front, back, left, and right, the orientation description may be based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] In the description of the utility model, if there is a description of quantity, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first or second, it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] like Figures 1 to 4 As shown, the utility model discloses a steel mesh cleaning mechanism, including a support plate 1 arranged below the steel mesh and capable of moving along one end to the other end of the steel mesh and a cleaning scraper assembly 2 arranged at the upper end of the support plate 1 and capable of being lifted and lowered, the cleaning scraper assembly 2 including a scraper fixing seat 21, a scraper 22 and a first lifting mechanism, a scraper accommodating groove is provided at the upper end of the scraper fixing seat 21, the scraper 22 is installed in the scraper accommodating groove and the upper end of the scraper 22 is higher than the upper end of the scraper accommodating groove, a first vacuum hole is provided at the bottom of the scraper accommodating groove, the first lifting mechanism includes two first lifting cylinders 23 symmetrically arranged at both ends of the scraper fixing seat 21 and capable of driving the scraper fixing seat 21 to lift and lower.

[0024] During operation, when the PCB board is printed, it will be moved out from under the steel mesh. At this time, the first lifting cylinder 23 drives the scraper fixing seat 21 to rise, so that its scraper 22 contacts one end of the lower part of the steel mesh, and then the support plate 1 will drive the cleaning scraper assembly 2 to translate. At this time, the scraper 22 will scrape from one end of the steel mesh to the other end to clean the residual solder paste on the steel mesh. At the same time, the first vacuum suction hole in the scraper accommodating groove is also vacuumed synchronously to absorb and collect the scraped solder paste, so as to better clean the steel mesh.

[0025] The support plate 1 can be moved from one end of the steel mesh to the other end through a sliding mechanism.

[0026] In the utility model, the steel mesh cleaning mechanism also includes a steel mesh wetting component 3 arranged at the upper end of the support plate 1 and parallel to the cleaning scraper component 2, the steel mesh wetting component 3 includes a steel mesh wetting sponge roller 31, a first brush 32, a first brush fixing seat 33, a first rotating mechanism and a second lifting mechanism, the upper end of the first brush fixing seat 33 is provided with a first brush accommodating groove, the first brush 32 is installed in the first brush accommodating groove, the steel mesh wetting sponge roller 31 is attached to the upper end of the first brush 32, and a second vacuum hole is provided at the bottom of the first brush accommodating groove, the first rotating mechanism includes a first driving motor 34 fixed on the support plate 1, a driving gear connected to the output end of the first driving motor 34 and a driven gear fixedly connected to one end of the steel mesh wetting sponge roller 31 and capable of matching with the driving gear, the second lifting mechanism includes two second lifting cylinders 35 symmetrically arranged at both ends of the first brush fixing seat 33 and capable of driving the first brush fixing seat 33 and the steel mesh wetting sponge roller 31 to rise and fall simultaneously. When the scraper cleans the steel mesh, the second lifting cylinder 35 drives the first brush fixing seat 33 and the steel mesh wetting sponge roller 31 to rise and fall at the same time, so that the steel mesh wetting sponge roller 31 contacts the lower end of the steel mesh. The steel mesh wetting sponge roller 31 is stained with alcohol, which can soften the solder paste and facilitate the scraper 22 to clean the residual solder paste on the steel mesh. By setting the first brush 32, the surface of the steel mesh wetting sponge can be cleaned, and the solder paste brushed off can be adsorbed and collected through the second vacuum hole, which can further improve the cleaning effect.

[0027] Of course, the steel mesh wetting component 3 can be controlled not to work as needed, and the steel mesh can be cleaned only by the scraper 22.

[0028] In the present invention, the steel mesh cleaning mechanism further comprises an alcohol spraying mechanism 4, which comprises a first nozzle assembly disposed on one side of the steel mesh wetting sponge roller 31 and capable of spraying alcohol thereon. In this way, the steel mesh wetting sponge roller 31 can be automatically sprayed with alcohol, which is more convenient and quick.

[0029] In the utility model, the steel mesh cleaning mechanism also includes a scraper cleaning assembly 5 which is arranged on one side of the support plate 1 and is arranged parallel to the cleaning scraper assembly 2. The scraper cleaning assembly 5 includes a translation plate 51, a bearing plate 52, a scraper cleaning sponge roller 53, a second brush 54, a second brush fixing seat 55, a translation mechanism 58, a second rotating mechanism 56, a third rotating mechanism 57 and a third lifting mechanism 59. The second brush fixing seat 55 is arranged at one end of the translation plate 51. A second brush accommodating groove is arranged at the upper end of the second brush fixing seat 55. The second brush 54 is arranged in the second brush accommodating groove. A third vacuum hole is arranged at the bottom of the second brush accommodating groove. The translation mechanism 58 includes a translation guide rail arranged on one side of the translation plate 51, a second brush accommodating groove arranged on the bearing plate 52, a second brush accommodating groove arranged on the bearing plate 52, a third brush accommodating groove arranged on the bottom of the second brush accommodating groove, and a third vacuum hole is arranged on the bottom of the second brush accommodating groove. A translation slider at one end of the carrier plate 52 and adapted to the translation guide rail, a translation transmission belt that drives the carrier plate 52 to move left and right, and a translation motor arranged on the translation plate 51 and used to drive the translation transmission belt, the second rotating mechanism 56 includes a second drive motor installed on the upper end of the carrier plate 52 and a coupling for connecting the output end of the second drive motor with one end of the scraper cleaning sponge roller 53, the third rotating mechanism 57 is fixed to one end of the carrier plate 52 and can drive the second drive motor to rotate horizontally so that its scraper cleaning sponge roller 53 reciprocates between the upper end of the second brush 54 and the upper end of the scraper, and the third lifting mechanism 59 includes a third lifting cylinder that is arranged below the translation plate 51 and can drive the translation plate 51 to rise and fall. After the scraper cleans the steel mesh, the third rotating mechanism 57 drives the second driving motor and the scraper cleaning sponge roller 53 to rotate horizontally so that they are placed on the upper end of the scraper and fit therewith, and then the second rotating mechanism 56 drives the scraper cleaning sponge roller 53 to rotate to clean the scraper surface, and the translation mechanism 58 drives the second driving motor and the scraper cleaning sponge roller 53 to move from one end of the scraper to the other end. When the cleaning is completed, the third rotating mechanism 57 drives the second driving motor and the scraper cleaning sponge roller 53 to rotate horizontally to the other end so that the scraper cleaning sponge roller 53 is placed on the upper end of the second brush 54. The scraper cleaning sponge roller 53 is cleaned by the rotation of the second rotating mechanism 56 and the solder paste is adsorbed and collected through the third vacuum hole, thereby ensuring that the scraper cleaning sponge roller 53 is clean.

[0030] In the utility model, the alcohol spraying mechanism 4 also includes a second nozzle assembly arranged on one side of the scraper cleaning sponge roller 53 and capable of spraying alcohol thereon, so as to moisten the solder paste on the scraper and facilitate cleaning of the solder paste on the scraper.

[0031] In the present invention, the alcohol spray mechanism 4 is fixed on the carrier plate 52, so that it can move synchronously with the carrier plate 52 to realize the moving spraying of the steel mesh wetting sponge roller 31, ensure the uniformity of spraying, and facilitate the arrangement of the alcohol spray mechanism 4. In the present invention, the first bumper assembly and the second bumper assembly can be made into an integrated structure, and the directions of the spray holes correspond to the steel mesh wetting sponge roller 31 and the scraper cleaning sponge roller 53 respectively. The structure is simpler.

[0032] In the utility model, the scraper includes a plurality of blades arranged side by side and a blade block 24 for fixing the plurality of blades. A positioning pin detachably connected to the blade block 24 is provided on one side of the scraper fixing seat 21. Fixed pressing blocks 25 pressed on both ends of the plurality of blades are also provided at both ends of the scraper fixing seat 21. The scraper can be easily replaced or deeply cleaned. The scraper can be reused and has a lower cost. A better cleaning effect can be achieved by setting a plurality of blades. The blade is a resin blade and will not damage the steel mesh.

[0033] In the present invention, the third lifting mechanism 59 further comprises a lifting bracket and a lifting guide rail assembly disposed between the lifting bracket and the translation plate 51. The third lifting mechanism 59 can drive the scraper cleaning sponge roller 53 to better fit the scraper.

[0034] In the present invention, the third rotating mechanism 57 includes a linear motion cylinder fixed on the carrier plate 52 and a connecting rod with one end hinged to the output end of the linear motion cylinder, a rotating seat is provided between the second drive motor and the carrier plate 52, and one side of the rotating seat is hinged to the other end of the connecting rod. The third rotating mechanism 57 has a simple structure and can rotate quickly, ensuring that the scraper cleaning sponge roller 53 works quickly.

[0035] In the utility model, the steel mesh cleaning mechanism also includes a vacuum pumping device, and the first vacuum pumping hole, the second vacuum pumping hole and the third vacuum pumping hole are all connected to the vacuum pumping device through a connecting pipe.

[0036] In the utility model, the scraper is in the shape of an elongated strip, and the first brush 32 is also in the shape of an elongated strip, so as to ensure the cleaning area.

[0037] The utility model cleans the steel mesh by a scraper, which can be reused to reduce the cleaning cost, and can wet the steel mesh with alcohol by arranging the steel mesh wetting sponge roller 31, which can improve the cleaning effect.

[0038] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A steel mesh cleaning mechanism, characterized in that: It includes a support plate which is arranged below the steel mesh and can move along one end to the other end of the steel mesh, and a cleaning scraper assembly which is arranged at the upper end of the support plate and can be lifted and lowered. The cleaning scraper assembly includes a scraper fixing seat, a scraper and a first lifting mechanism. A scraper accommodating groove is provided at the upper end of the scraper fixing seat. The scraper is installed in the scraper accommodating groove and the upper end of the scraper is higher than the upper end of the scraper accommodating groove. A first vacuum hole is provided at the bottom of the scraper accommodating groove. The first lifting mechanism includes two first lifting cylinders which are symmetrically arranged at both ends of the scraper fixing seat and can drive the scraper fixing seat to lift and lower.

2. The steel mesh cleaning mechanism according to claim 1, characterized in that: The steel mesh cleaning mechanism also includes a steel mesh wetting assembly arranged at the upper end of the support plate and parallel to the cleaning scraper assembly, the steel mesh wetting assembly includes a steel mesh wetting sponge roller, a first brush, a first brush fixing seat, a first rotating mechanism and a second lifting mechanism, the upper end of the first brush fixing seat is provided with a first brush accommodating groove, the first brush is installed in the first brush accommodating groove, the steel mesh wetting sponge roller is attached to the upper end of the first brush, and a second vacuum hole is provided at the bottom of the first brush accommodating groove, the first rotating mechanism includes a first driving motor fixed on the support plate, a driving gear connected to the output end of the first driving motor and a driven gear fixedly connected to one end of the steel mesh wetting sponge roller and capable of being adapted to the driving gear, the second lifting mechanism includes two second lifting cylinders symmetrically arranged at both ends of the first brush fixing seat and capable of driving the first brush fixing seat and the steel mesh wetting sponge roller to rise and fall simultaneously.

3. The steel mesh cleaning mechanism according to claim 2, characterized in that: The steel mesh cleaning mechanism also includes an alcohol spraying mechanism, which includes a first nozzle assembly that is arranged on one side of the steel mesh wetting sponge roller and can spray alcohol thereon.

4. The steel mesh cleaning mechanism according to claim 3, characterized in that: The steel mesh cleaning mechanism also includes a scraper cleaning assembly arranged on one side of the support plate and arranged parallel to the cleaning scraper assembly, the scraper cleaning assembly includes a translation plate, a carrying plate, a scraper cleaning sponge roller, a second brush, a second brush fixing seat, a translation mechanism, a second rotating mechanism, a third rotating mechanism and a third lifting mechanism, the second brush fixing seat is arranged at one end of the translation plate, a second brush receiving groove is arranged at the upper end of the second brush fixing seat, the second brush is arranged in the second brush receiving groove, and a third vacuum hole is arranged at the bottom of the second brush receiving groove, the translation mechanism includes a translation guide rail arranged on one side of the translation plate, a translation guide rail arranged at one end of the carrying plate and parallel to the A translation slider adapted to the translation guide rail, a translation transmission belt that drives the supporting plate to move left and right, and a translation motor arranged on the translation plate and used to drive the translation transmission belt, the second rotating mechanism includes a second drive motor installed on the upper end of the supporting plate and a coupling for connecting the output end of the second drive motor with one end of the scraper cleaning sponge roller, the third rotating mechanism is fixed to one end of the supporting plate and can drive the second drive motor to rotate horizontally so that its scraper cleaning sponge roller reciprocates between the upper end of the second brush and the upper end of the scraper, and the third lifting mechanism includes a third lifting cylinder that is arranged below the translation plate and can drive the translation plate to rise and fall.

5. The steel mesh cleaning mechanism according to claim 4, characterized in that: The alcohol spraying mechanism also includes a second spray head assembly which is arranged on one side of the scraper cleaning sponge roller and can spray alcohol thereon.

6. The steel mesh cleaning mechanism according to claim 5, characterized in that: The alcohol spraying mechanism is fixed on the carrying plate.

7. The steel mesh cleaning mechanism according to claim 1, characterized in that: The scraper includes a plurality of blades arranged side by side and a blade block for fixing the plurality of blades. A positioning pin detachably connected to the blade block is provided on one side of the scraper fixing seat. Fixed pressure blocks pressed on the two ends of the plurality of blades are also provided at both ends of the scraper fixing seat.

8. The steel mesh cleaning mechanism according to claim 4, characterized in that: The third lifting mechanism further includes a lifting bracket and a lifting guide rail assembly arranged between the lifting bracket and the translation plate.

9. The steel mesh cleaning mechanism according to claim 4, characterized in that: The third rotating mechanism includes a linear motion cylinder fixed on the supporting plate and a connecting rod with one end hinged to the output end of the linear motion cylinder. A rotating seat is provided between the second driving motor and the supporting plate, and one side of the rotating seat is hinged to the other end of the connecting rod.

10. The steel mesh cleaning mechanism according to claim 4, characterized in that: The steel mesh cleaning mechanism also includes a vacuum pumping device, and the first vacuum pumping hole, the second vacuum pumping hole and the third vacuum pumping hole are all connected to the vacuum pumping device through a connecting pipe.

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