Vertical Bidirectional Independent Control Wiping Net Device and Its Method

Abstract

The present invention relates to a vertical bidirectional independent control screen wiping device and a method thereof, which includes two parallel tracks and a screen wiping device installed on the tracks. The screen wiping device can slide along the tracks under the drive of a screen wiping motor. The screen wiping device includes parallel sliding structures respectively installed on the two tracks, several profiles and at least two cylindrical shafts connecting the two parallel sliding structures, an X-direction screen wiping assembly installed on the parallel sliding structure, and a Y-direction screen wiping assembly sleeved on the cylindrical shafts through linear bearing seats. The present invention is used to wipe the overflow ink on the four edges of the screen pattern along two mutually perpendicular directions of X and Y.

Description

Technical Field

[0001] The present invention relates to the technical field of screen cleaning, and particularly relates to a fully automatic vertical two-way independent control wiping screen structure device and method thereof. Background Art

[0002] During the screen printing process, a small amount of ink overflows at the bottom of the screen. When printing on the substrate, it will cause quality problems for the substrate. Initially, during the printing process, generally, an operator holds a lint-free paper by hand to wipe the surface of the screen. The problems caused by manually wiping the screen surface with a lint-free paper held by an operator are as follows:

[0003] 1. During the process of the operator wiping the screen, it cannot be guaranteed that each wipe uses a clean lint-free paper because the operator holding the lint-free paper may reuse the lint-free paper. In this way, the lint-free paper covered with ink will contaminate the surface of the screen again.

[0004] 2. If the operator is engaged in such work for a long time, the ink will cause serious corrosion to the hands.

[0005] 3. Manually wiping the screen by the operator is not only time-consuming and laborious, with inconsistent forces, but also likely to break the screen due to excessive force or not wipe it clean due to insufficient force. The manual screen wiping method has a high labor intensity.

[0006] The existing advanced technology is the automatic single-screen wiping technology. The single-screen wiping technology has made great progress compared with manual screen wiping and realizes the mechanization of screen wiping. At present, the single-screen wiping technology still has deficiencies. There is a phenomenon of smeared printing on the edge of the substrate, which cannot meet the requirements of some products with high printing quality; for some printing processes, it is required to wipe the four edges of the pattern of the substrate on the screen, and the single-screen wiping technology cannot meet the requirements of wiping the screen in different directions. Summary of the Invention

[0007] The purpose of the present invention is to provide a vertical two-way independent control screen wiping device that wipes the four edges of the screen pattern in two mutually perpendicular directions of X and Y. Another purpose of the present invention is to provide a screen wiping method that solves the problem of wiping the four edges of the screen by separately controlling the movement of the screen wiping components in two mutually perpendicular directions of X and Y.

[0008] The technical solution of the present invention is to provide a vertical two-way independent control screen wiping device, including two parallel tracks and a screen wiping device installed on the tracks. The screen wiping device can slide along the tracks under the drive of a screen wiping motor. The special feature is that the screen wiping device includes parallel sliding structures respectively installed on the two tracks, several profiles and at least two cylindrical shafts connecting the two parallel sliding structures, an X-direction screen wiping component installed on the parallel sliding structure, and a Y-direction screen wiping component sleeved on the cylindrical shafts through linear bearing seats;

[0009] The parallel sliding structure includes an orbital slider and a fixing plate;

[0010] One end of the orbital slider is clamped on the orbit, and the other end is fixed to the bottom of the fixing plate;

[0011] The two fixing plates on both sides are connected to the cylindrical shaft through profiles. An X-direction screen wiping assembly is installed on the fixing plate. A linear bearing block is sleeved on the cylindrical shaft, and a Y-direction screen wiping assembly is installed on the linear bearing block;

[0012] Two groups of screen wiping assemblies in the X direction and the Y direction are respectively provided with two groups of non-dust paper rolls. The screen wiping motor drives the screen wiping device to horizontally move along the parallel orbit. The two groups of non-dust paper of the X-direction screen wiping assembly contact the screen plate to wipe the left and right edges of the screen plate; a second motor is further installed on the outer side of the fixing plate. The second motor is connected to a belt, and the belt is connected to a transmission block at the bottom of the Y-direction screen wiping assembly. The second motor drives the belt to drive the transmission block to move, so as to drive the Y-direction screen wiping assembly to move on the cylindrical shaft. The two groups of non-dust paper of the Y-direction screen wiping assembly wipe the front and back edges of the screen plate.

[0013] Preferably: The X-direction screen wiping assembly includes a first bottom plate installed on the fixing plate, first side plates respectively installed on both sides of the first bottom plate, and a unwinding reel assembly, a first top non-dust paper rubber roller assembly, and a winding reel assembly that are sequentially arranged in parallel between the two first side plates and perpendicular to the moving direction of the orbit. Two unwinding paper cylinders and two winding paper cylinders that are freely movable on the reel and correspond in position are respectively sleeved on the unwinding reel and the winding reel, and are locked with a limiting ring. The non-dust paper of the X-direction screen wiping assembly passes through the route in sequence: it is unwound from the unwinding paper cylinder of the unwinding reel, passes over the top of the first top non-dust rubber roller, and is recycled at the winding paper cylinder of the winding reel.

[0014] Preferably: The first side plate is composed of a first side plate, a first motor mounting hole at the front end of the first side plate, a compression spring seat mounting hole at the rear end of the first side plate, a guide rail mounting groove in the middle, an adjusting screw hole opened at the top, a jacking spring mounting hole opened at a position concentric with the adjusting screw hole at the bottom, and a limiting arm mounting hole opened on the side. The adjusting screw hole, the limiting arm mounting hole and the jacking spring mounting hole are vertically communicated. The front end and the rear end of the other first side plate are both pre-tightening spring seat mounting holes.

[0015] Preferably, the first top non-woven paper rubber roller assembly includes a top non-woven paper rubber roller and a rubber roller spring lifting assembly fixed to the inner sides of the first side plates on both sides respectively. The rubber roller spring lifting assembly includes a guide rail installed on the first side plate, a guide rail slider slidably connected to the guide rail, a first rubber roller fixing seat connected to the guide rail slider, a first rubber roller pressing cover fixed to the first rubber roller fixing seat by screws, and a lifting spring. Both ends of the top non-woven paper rubber roller are clamped between the first rubber roller fixing seat and the first rubber roller pressing cover, and the first rubber roller fixing seat is provided with a limiting arm.

[0016] Preferably, the guide rail is installed on the guide rail installation groove; the limiting arm of the first rubber roller fixing seat is placed into the limiting arm installation hole; the lifting spring is built in the lifting spring installation hole, the top of the lifting spring abuts against the bottom of the limiting arm, and the bottom of the lifting spring abuts against the first bottom plate; the adjusting screw is screwed into the adjusting screw hole from above and contacts the top of the limiting arm, and the lifting height of the rubber roller spring lifting assembly is adjusted by controlling the depth of the adjusting screw, so as to control the tension of the non-woven paper.

[0017] Preferably, limiting components are respectively provided at both ends of the profile near the Y-direction screen wiping assembly side;

[0018] The Y-direction screen wiping assembly includes a second bottom plate connected to a linear bearing seat at the bottom, second side plates installed on both sides of the second bottom plate, a second top non-woven paper rubber roller assembly installed on the bottom plate, a unwind reel assembly and a wind-up reel assembly parallel to each other and parallel to the track movement direction and located between the second side plates on both sides, and limiting pieces located outside the second side plates. Two unwind paper cylinders and two wind-up paper cylinders that are freely movable on the reels and correspond in position are respectively sleeved on the unwind reel and the wind-up reel, and are locked with limiting rings. The route of the non-woven paper of the Y-direction screen wiping assembly is sequentially released from the unwind paper cylinder of the unwind reel, passes over the top of the second top non-woven paper rubber roller, and is recycled by the wind-up paper cylinder of the wind-up reel.

[0019] Preferably, the second top non-woven paper rubber roller assembly includes lifting guide columns fixed on the top surfaces of the left and right sides of the second bottom plate, a lifting cylinder with the cylinder body fixed on the bottom surface of the second bottom plate, a fixed block connected to the other end of the piston rod of the lifting cylinder, a lifting bottom plate connected to the fixed block, spring guide columns and lifting guide bearings respectively arranged on both sides of the top surface of the lifting bottom plate, a second rubber roller fixing seat movably installed on the spring guide columns, a second rubber roller pressing cover installed on the second rubber roller fixing seat by screws, a top plate connected to the guide column by screws and located above the second rubber roller fixing seat, and a second top non-woven paper rubber roller clamped between the second rubber roller fixing seat and the second rubber roller cover. A transmission block is installed at the bottom of the second bottom plate. A lifting pre-tightening spring installation hole penetrates through the middle of the top of the second rubber roller fixing seat, and a lifting pre-tightening spring. The top of the lifting pre-tightening spring abuts against the bottom surface of the top plate, and the bottom abuts against the top surface of the second bottom plate.

[0020] Preferably, the unwind reel assembly includes an unwind reel, an unwind reel spring pre-tightening seat and an unwind reel spring pressing seat respectively fixed on the outer sides of the first side plate or the second side plate on both sides. Grooves are provided at both ends of the unwind reel. Protrusions are provided at the shaft ends of the unwind reel spring pre-tightening seat and the unwind reel spring pressing seat. Both ends of the unwind reel are respectively sleeved on the unwind reel spring pre-tightening seat and the unwind reel spring pressing seat. Through the cooperation of the protrusions and the grooves, relative rotation is prevented.

[0021] Preferably, the winding reel assembly includes a winding reel, a winding reel spring pre-tightening seat and a motor respectively fixed on the outer sides of the first side plate or the second side plate on both sides. Grooves are provided at both ends of the winding reel. Protrusions are provided at the shaft ends of the winding reel spring pre-tightening seat and the motor. Both ends of the winding reel are respectively sleeved on the winding reel spring pre-tightening seat and the motor. Through the cooperation of the protrusions and the grooves, relative rotation is prevented. The motor drives the winding reel to rotate, thereby driving the recovery of the non-woven paper.

[0022] Preferably, there is a height difference between the first top non-woven rubber roller and the second top non-woven rubber roller in the vertical direction. When the lifting cylinder is not lifted, the first top non-woven rubber roller is higher than the second top non-woven rubber roller, and the two groups of non-woven papers of the X-direction wiping net assembly contact the screen plate; when the lifting cylinder is lifted to the top, the first top non-woven rubber roller is lower than the second top non-woven rubber roller, and the two groups of non-woven papers of the Y-direction wiping net assembly contact the front and rear edges of the screen plate.

[0023] Another technical solution of the present invention is to provide an automatic screen wiping method for the vertical two-way independent control screen wiping device as described above, which is characterized in that it includes the following steps:

[0024] ⑴ Set the positions and spacing of the two groups of dust-free papers of the X-direction screen wiping component according to the size of the screen plate to be wiped, set the positions and spacing of the two groups of dust-free papers of the Y-direction screen wiping component, and use the limit ring to lock the position of the paper tube;

[0025] ⑵ The first top dust-free paper rubber roller component includes a top dust-free paper rubber roller and a rubber roller spring lifting component fixed on the inner sides of the first side plates on both sides respectively. Adjust the rubber roller spring lifting component to adjust the height of the first top dust-free paper rubber roller, so as to adjust the tension of the dust-free paper of the X-direction screen wiping component;

[0026] ⑶ Start the screen wiping motor and the first motor, and the motor drives the screen wiping device to move horizontally along the parallel track. The two groups of dust-free papers of the X-direction screen wiping component contact the screen plate and wipe the left and right edges of the screen plate;

[0027] ⑷ The lifting cylinder works, and the second top dust-free paper rubber roller component rises under the action of the lifting cylinder. When it reaches the lifting vertex, the vertical height of the second top dust-free paper rubber roller is higher than that of the first top dust-free paper rubber roller, and the two groups of dust-free papers of the Y-direction screen wiping component contact the front and back edges of the screen plate;

[0028] ⑸ Start the second and third motors, and the Y-direction screen wiping component moves along the cylindrical axis direction. The two groups of dust-free papers of the Y-direction screen wiping component wipe the front and back edges of the screen plate.

[0029] Compared with the prior art, the beneficial effects of the present invention:

[0030] ⑴ The screen wiping device is provided with an X-direction screen wiping component and a Y-direction screen wiping component. The X-direction screen wiping component slides along the parallel track direction to wipe the left and right edges of the screen plate, and the Y-direction screen wiping component moves along the cylindrical axis direction to wipe the front and back edges of the screen plate.

[0031] ⑵ The two groups of screen wiping components in the X-direction and Y-direction are respectively provided with two groups of dust-free paper rolls, which wipe two sides respectively, and the spacing between the two dust-free paper rolls can be adjusted according to the size of the screen plate to be wiped.

[0032] ⑶ The Y-direction screen wiping component is provided with a cylinder, and there is a height difference between the first top dust-free rubber roller and the second top dust-free rubber roller in the vertical direction. When the cylinder is not lifted, the first top dust-free rubber roller is higher than the second top dust-free rubber roller, and the two groups of dust-free papers of the X-direction screen wiping component contact the screen plate; when the cylinder is lifted to the vertex, the first top dust-free rubber roller is lower than the second top dust-free rubber roller, and the two groups of dust-free papers of the Y-direction screen wiping component contact the front and back edges of the screen plate, and the actions of the two groups of screen wiping components in the X-direction and Y-direction do not affect each other.

[0033] ⑷ The X-direction screen wiping component is provided with a spring rubber roller spring lifting component, which can adjust the tension of the dust-free paper on the X-direction screen wiping component and adjust the height of the first top dust-free paper rubber roller.

[0034] ⑸ The two side fixing plates are connected to the cylindrical shaft through profiles, making the overall structure of the mesh wiping device stable. Brief Description of the Drawings

[0035] Figure 1 is a schematic diagram of the overall structure of the vertical two-way independent control mesh wiping device of the present invention;

[0036] Figure 2 is a schematic diagram of the back structure of the vertical two-way independent control mesh wiping device of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the X-direction mesh wiping component of the vertical two-way independent control mesh wiping device of the present invention;

[0038] Figure 4 is a front view of the first side plate of the vertical two-way independent control mesh wiping device of the present invention;

[0039] Figure 5 is a partial cross-sectional view of the first side plate of the vertical two-way independent control mesh wiping device of the present invention at A;

[0040] Figure 6 is an exploded view of the combination of the rubber roller spring lifting component and the first side plate of the vertical two-way independent control mesh wiping device of the present invention;

[0041] Figure 7 is a schematic diagram of the structure of the Y-direction mesh wiping component of the vertical two-way independent control mesh wiping device of the present invention;

[0042] Figure 8 is an exploded view of the second top dust-free paper rubber roller assembly of the vertical two-way independent control mesh wiping device of the present invention;

[0043] Description of the Main Component Symbols:

[0044]

[0045] Detailed Embodiment

[0046] The present invention will be further described in detail below with reference to the drawings:

[0047] Please refer to Figure 1 、 Figure 2 As shown, a vertical two-way independent control mesh wiping device includes two parallel rails 1 and a mesh wiping device installed on the rails 1. The mesh wiping device can slide along the rails 1 under the drive of a mesh wiping motor. The mesh wiping device includes parallel sliding structures respectively installed on the two rails, several profiles 3 and several cylindrical shafts 4 connecting the two parallel sliding structures, an X-direction mesh wiping component 5 installed on the parallel sliding structure, and a Y-direction mesh wiping component 6 sleeved on the cylindrical shaft 4 through a linear bearing seat 64;

[0048] The parallel sliding structure includes an orbital slider 21 and a fixing plate 22;

[0049] One end of the orbital slider 21 is clamped to the track 1, and the other end is fixed to the bottom of the fixing plate 22;

[0050] The fixing plates 22 on both sides are connected by profiles 3 and a cylindrical shaft 4. An X-direction screen wiping assembly 5 is installed on the fixing plate 22. A linear bearing block 64 is sleeved on the cylindrical shaft 4, and a Y-direction screen wiping assembly 6 is installed on the linear bearing block.

[0051] Please refer to Figure 3 As shown, the X-direction screen wiping assembly 5 includes a first bottom plate 51 installed on the fixing plate, first side plates 52 respectively installed on both sides of the first bottom plate 51, and a first unwinding reel assembly 53, a first top non-dust paper rubber roller assembly 54, and a first winding reel assembly 55 that are sequentially arranged in parallel between the first side plates 52 on both sides and are perpendicular to the movement direction of the track. Two unwinding paper cylinders 534 that can move freely on the reel are sleeved on the first unwinding reel 531, and the position of the paper cylinder is locked by a limit ring 7. Two winding paper cylinders 554 are sleeved on the first winding reel 551, and the vertical position corresponds to the position of the unwinding paper cylinder 534, and the position of the paper cylinder is locked by a limit ring 7. The non-dust paper 8 of the X-direction screen wiping assembly 5 passes through the route in sequence: it is released from the unwinding paper cylinder 534 of the first unwinding reel 531, passes through the top of the first top non-dust rubber roller 541, and is recycled at the winding paper cylinder 554 of the first winding reel 551.

[0052] The first unwinding reel assembly 53 includes a first unwinding reel 531, a first unwinding reel spring pre-tightening seat 532 and a first unwinding reel spring pressing seat 533 that are respectively fixed to the outer sides of the first side plates 52 on both sides. Grooves are provided at both ends of the first unwinding reel 531, and protrusions are provided at the shaft ends of the first unwinding reel spring pre-tightening seat 532 and the first unwinding reel spring pressing seat 533. Both ends of the first unwinding reel 531 are respectively sleeved on the first unwinding reel spring pre-tightening seat 532 and the first unwinding reel spring pressing seat 533, and relative rotation is prevented through the cooperation of the protrusions and the grooves.

[0053] The first winding reel assembly 55 includes a first winding reel 551, a first winding reel spring pre-tightening seat 552 and a first motor 553 that are respectively fixed to the outer sides of the first side plates 52 on both sides. Grooves are provided at both ends of the first winding reel 551, and protrusions are provided at the shaft ends of the first winding reel spring pre-tightening seat 552 and the first motor 553. Both ends of the first winding reel 551 are respectively sleeved on the first winding reel spring pre-tightening seat 552 and the first motor 553, and relative rotation is prevented through the cooperation of the protrusions and the grooves. The first motor 553 drives the first winding reel 551 to rotate, thereby driving the recycling of the non-dust paper 8.

[0054] Please refer to Figure 4 、 Figure 5 As shown, the first side plate 52 consists of the first side plate 52, a first motor mounting hole 521 at the front end of the first side plate 52, a first compression spring seat mounting hole 522 at the rear end of the first side plate 52, a guide rail mounting groove 523 in the middle, a jacking adjustment screw hole 524 opened at the top, a jacking spring mounting hole 525 opened at the bottom at a position concentric with the adjustment screw hole 524, and a limit arm mounting hole 526 opened on the side. The adjustment screw hole 524, the jacking spring mounting hole 525, and the limit arm mounting hole 526 are communicated with each other.

[0055] Please refer to Figure 3 、 Figure 6 As shown, the first non-dust paper rubber roller assembly 54 includes a top non-dust paper rubber roller 541 and a rubber roller spring jacking assembly 542 fixed to the inner sides of the first side plates 52 on both sides respectively. The rubber roller spring jacking assembly 542 includes a guide rail 5421 mounted on the first side plate 52, a guide rail slider 5422 slidably connected to the guide rail, a first rubber roller fixing seat 5423 connected to the guide rail slider 5422, a first rubber roller pressing cover 5424 fixed to the rubber roller fixing seat 5423 by screws, and a jacking spring 5425. The top non-dust paper rubber roller 541 is clamped between a round hole formed by the combination of the first rubber roller fixing seat 5423 and the first rubber roller pressing cover 5424. The first rubber roller fixing seat 5423 is provided with a limit arm 54231.

[0056] The guide rail 5421 is mounted on the guide rail mounting groove 523; the limit arm 54231 of the first rubber roller fixing seat 5423 is placed into the limit arm mounting hole 526; the jacking spring 5425 is built in the jacking spring mounting hole 525. The top of the jacking spring 5425 abuts against the bottom of the limit arm 54231, and the bottom of the jacking spring 5425 abuts against the first bottom plate 51. The adjustment screw is screwed into the adjustment screw hole 524 from above and contacts the top of the limit arm 5423. By controlling the depth of the adjustment screw, the jacking height of the rubber roller spring jacking assembly 542 is adjusted, thereby controlling the tension of the non-dust paper 8.

[0057] Please refer to Figure 1 、 Figure 2 、 Figure 7 As shown, a second motor 61 is further mounted on the outside of the fixing plate 22. The second motor 61 is connected to a belt 62. The belt 62 is connected to a bottom transmission block 63 of the Y-direction screen wiping assembly 6. The second motor 61 drives the belt 62 to drive the transmission block 63 to move, thereby driving the Y-direction screen wiping assembly 6 to move on the cylindrical shaft 4. Limit assemblies 41 are respectively provided at both ends of the profile 3 close to the Y-direction screen wiping assembly 6;

[0058] The Y-direction net wiping assembly 6 includes a second bottom plate 65 with its bottom connected to a linear bearing block 64, second side plates 66 installed on both sides of the second bottom plate 65, a second top non-woven paper rubber roller assembly 68 installed on the second bottom plate 65, a second unwinding reel assembly 67 and a second winding reel assembly 69 that are parallel to each other and parallel to the moving direction of the track and are arranged between the second side plates 66 on both sides, and a limiting piece 661 located outside the second side plates 66. A winding paper tube 674 and a winding paper tube 694 with corresponding positions are respectively sleeved on the second unwinding reel 671 and the second winding reel 691, and are locked with a limiting ring 7. The passing route of the non-woven paper 8 of the Y-direction net wiping assembly 6 is successively released from the winding paper tube 674 of the second unwinding reel 671, passes through the top of the second top non-woven paper rubber roller 681, and is recycled by the winding paper tube 694 of the second winding reel 691.

[0059] When the second motor 61 drives the Y-direction net wiping assembly 6 to move on the cylindrical shaft 4, through the cooperation of the limiting piece 661 and the limiting assembly 41, the formation of the Y-direction net wiping assembly 6 is restricted to avoid collision damage with the fixed plates 22 on both sides.

[0060] The second unwinding reel assembly 67 includes a second unwinding reel 671, a second unwinding reel spring pre-tightening seat 672 and a second unwinding reel spring pressing seat 673 that are respectively fixed outside the second side plates 66 on both sides. Grooves are provided at both ends of the second unwinding reel 671, and convex blocks are provided at the shaft ends of the second unwinding reel spring pre-tightening seat 672 and the second unwinding reel spring pressing seat 673. Both ends of the second unwinding reel 671 are respectively sleeved on the second unwinding reel spring pre-tightening seat 672 and the second unwinding reel spring pressing seat 673, and relative rotation is prevented through the cooperation of the convex blocks and the grooves.

[0061] The second winding reel assembly 69 includes a second winding reel 691, a second winding reel spring pre-tightening seat 692 and a third motor 693 that are respectively fixed outside the second side plates 66 on both sides. Grooves are provided at both ends of the second winding reel 691, and convex blocks are provided at the shaft ends of the second winding reel spring pre-tightening seat 692 and the third motor shaft end 693. Both ends of the second winding reel 691 are respectively sleeved on the second winding reel spring pre-tightening seat 692 and the third motor 693, and relative rotation is prevented through the cooperation of the convex blocks and the grooves. The third motor 693 drives the second winding reel 691 to rotate, thereby driving the recycling of the non-woven paper 8.

[0062] Please refer to Figure 8As shown in the figure, the second non-dust paper rubber roller assembly 68 includes lifting guide columns 651 fixed on the top surfaces of the left and right sides of the second bottom plate 65, a lifting cylinder 682 with the cylinder body 6821 fixed on the bottom surface of the second bottom plate 65, a fixed block 683 connected to the other end of the piston rod 6822 of the lifting cylinder 682, a lifting bottom plate 684 connected to the fixed block 683, spring guide columns 685 respectively arranged on both sides of the top surface of the lifting bottom plate 684, a lifting guide bearing 686 installed on the bottom surface of the lifting bottom plate 684 with its head passing through the round hole 6841, a second rubber roller fixing seat 687 movably installed on the spring guide columns 685, a second rubber roller pressing cover 688 installed on the second rubber roller fixing seat 687 by screws, a top plate 6871 connected to the spring guide columns 685 by screws and located above the second rubber roller fixing seat 687, and a second top non-dust paper rubber roller 681 clamped between the round holes formed by the combination of the second rubber roller fixing seat 687 and the second rubber roller cover 688. A transmission block 63 is installed at the bottom of the second bottom plate 65. A lifting pre-tightening spring installation hole 6872 runs through the middle of the top of the second rubber roller fixing seat 687. The lifting pre-tightening spring 689 is placed inside the pre-tightening spring installation hole. The top of the lifting pre-tightening spring 689 abuts against the bottom surface of the top plate 6872, and the bottom abuts against the top surface of the second bottom plate 65.

[0063] In order to prevent the X-direction screen wiping assembly 5 and the Y-direction screen wiping assembly 6 from affecting each other during the screen wiping operation, there is a height difference between the first top non-dust rubber roller 541 and the second top non-dust rubber roller 681 in the vertical direction:

[0064] When the lifting cylinder 682 is not lifted, the first top non-dust rubber roller 541 is higher than the second top non-dust rubber roller 681, and the two groups of non-dust paper 8 of the X-direction screen wiping assembly 5 contact the left and right edges of the screen plate.

[0065] When the lifting cylinder 682 is lifted to the top point, the first top non-dust rubber roller 541 is lower than the second top non-dust rubber roller 681, and the two groups of non-dust paper 8 of the Y-direction screen wiping assembly 6 contact the front and back edges of the screen plate.

[0066] The embodiment of the present invention also provides a method for wiping a screen plate, including the following steps:

[0067] ⑴ According to the size of the screen plate to be wiped, set the positions and spacings of the two groups of non-dust paper 8 of the X-direction screen wiping assembly 5, set the positions and spacings of the two groups of non-dust paper 8 of the Y-direction screen wiping assembly 6, and use the limit ring 7 to lock the position of the paper tube;

[0068] ⑵ Adjust the rubber roller spring lifting assembly 542 to adjust the height of the first top non-dust paper rubber roller 541, so as to adjust the tension of the non-dust paper 8 of the X-direction screen wiping assembly 5;

[0069] ⑶ The net wiping motor and the first motor 553 are started. The net wiping motor drives the net wiping device to horizontally move along the parallel track 1. The two groups of non-dust papers 8 of the X-direction net wiping assembly 5 contact the screen plate, and wipe the left and right side edges of the screen plate.

[0070] ⑷ The air cylinder 682 works. The second top non-dust paper rubber roller assembly 68 is lifted under the action of the air cylinder 682. When reaching the top lift point, the vertical height of the second top non-dust paper rubber roller 681 is higher than that of the first top non-dust paper rubber roller 541. The two groups of non-dust papers 8 of the Y-direction net wiping assembly 68 contact the front and back side edges of the screen plate.

[0071] ⑸ The second motor 61 and the third motor 693 are started. The Y-direction net wiping assembly 6 moves along the direction of the cylindrical shaft 4. The two groups of non-dust papers 8 of the Y-direction net wiping assembly 6 wipe the front and back side edges of the screen plate.

[0072] The above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A vertical bidirectional independent control screen wiping device, comprising two parallel tracks and a screen wiping device mounted on the tracks. The screen wiping device can slide along the tracks under the drive of a screen wiping motor. Characterized in that, the screen wiping device includes parallel sliding structures respectively mounted on the two tracks, several profiles and at least two cylindrical shafts connecting the two parallel sliding structures, an X-direction screen wiping component mounted on the parallel sliding structure, and a Y-direction screen wiping component sleeved on the cylindrical shafts through linear bearing seats; the parallel sliding structure includes a track slider and a fixing plate; one end of the track slider is clamped on the track, and the other end is fixed to the bottom of the fixing plate; the fixing plates on both sides are connected by profiles and cylindrical shafts. The X-direction screen wiping component is mounted on the fixing plates. A linear bearing seat is sleeved on the cylindrical shaft, and the Y-direction screen wiping component is mounted on the linear bearing seat; Two groups of dust-free paper rolls are respectively arranged on the two groups of screen wiping components in the X direction and the Y direction. The screen wiping motor drives the screen wiping device to move horizontally along the parallel tracks. The two groups of dust-free papers of the X-direction screen wiping component contact the screen plate to wipe the left and right edges of the screen plate. A second motor is also mounted on the outer side of the fixing plate. The second motor is connected to a belt, and the belt is connected to a transmission block at the bottom of the Y-direction screen wiping component. The second motor drives the belt to drive the transmission block to move, so as to drive the Y-direction screen wiping component to move on the cylindrical shaft. The two groups of dust-free papers of the Y-direction screen wiping component wipe the front and back edges of the screen plate.

2. The vertical bidirectional independent control screen wiping device according to claim 1, Characterized in that, the X-direction screen wiping component includes a first bottom plate mounted on the fixing plate, first side plates respectively mounted on both sides of the first bottom plate, and a unwind reel assembly, a first top dust-free paper rubber roller assembly, and a winding reel assembly that are sequentially arranged in parallel between the two first side plates and perpendicular to the moving direction of the track. Two unwind paper cylinders and two winding paper cylinders that are freely movable on the reels and correspond in position are respectively sleeved on the unwind reel and the winding reel, and are locked with limit rings. The dust-free paper passing route of the X-direction screen wiping component is sequentially released from the unwind paper cylinder of the unwind reel, passes over the top of the first top dust-free rubber roller, and is recycled at the winding paper cylinder of the winding reel.

3. The vertical bidirectional independent control screen wiping device according to claim 2, Characterized in that, the first side plate is composed of a first side plate, a first motor mounting hole at the front end of the first side plate, a compression spring seat mounting hole at the rear end of the first side plate, a guide rail mounting groove in the middle, an adjustment screw hole opened at the top, a jacking spring mounting hole opened at the position concentric with the adjustment screw hole at the bottom, and a limit arm mounting hole opened on the side. The adjustment screw hole, the limit arm mounting hole and the jacking spring mounting hole communicate in the vertical direction. The front end and the rear end of the other first side plate are both pre-tightening spring seat mounting holes.

4. The vertical bidirectional independent control screen wiping device according to claim 3, Characterized in that, The first top dust-free paper rubber roller assembly includes a top dust-free paper rubber roller and a rubber roller spring lifting assembly respectively fixed on the inner sides of the first side plates on both sides, the rubber roller spring lifting assembly includes a guide rail installed on the first side plate, a guide rail slider slidably connected to the guide rail, a first rubber roller fixing seat connected to the guide rail slider, a first rubber roller pressure cover fixed to the first rubber roller fixing seat by screws, and a lifting spring, the two ends of the top dust-free paper rubber roller are respectively clamped between the first rubber roller fixing seat and the first rubber roller pressure cover, and the first rubber roller fixing seat is provided with a limiting arm.

5. According to the vertical two-way independent control screen wiping device of claim 4, It is characterized in that The guide rail is installed on the guide rail installation groove; the limit arm of the first rubber roller fixing seat is placed in the limit arm installation hole; the lifting spring is built into the lifting spring installation hole, the top of the lifting spring is against the bottom of the limit arm, and the bottom of the lifting spring is against the first bottom plate; The adjusting screw is screwed into the adjusting screw hole from above and contacts the top of the limit arm. The lifting height of the rubber roller spring lifting assembly is adjusted by controlling the depth of the adjusting screw, thereby controlling the tension of the dust-free paper.

6. According to claim 2, the vertical two-way independent control screen wiping device, It is characterized in that Limiting components are respectively provided at both ends of the profile close to the screen wiping component side in the Y direction; The Y-direction screen wiping assembly includes a second bottom plate connected to the linear bearing seat at the bottom, second side plates installed on both sides of the second bottom plate, a second top dust-free paper rubber roller assembly installed on the bottom plate, a unwinding reel assembly and a winding reel assembly parallel to the direction of movement of the track and parallel to the second side plates on both sides, and a limiting plate located on the outer side of the second side plate, the unwinding reel and the winding reel are respectively sleeved with two unwinding paper drums and two winding paper drums corresponding in position and freely movable on the reels, and are locked with limiting rings, and the dust-free paper of the Y-direction screen wiping assembly passes through the unwinding paper drum of the unwinding reel, passes through the top of the second top dust-free paper rubber roller, and is recovered by the winding paper drum of the winding reel.

7. According to claim 6, the vertical two-way independent control screen wiping device, It is characterized in that The second top dust-free paper rubber roller assembly includes a lifting guide column fixed on the top surfaces of the left and right sides of the second bottom plate, a lifting cylinder with a cylinder body fixed on the bottom surface of the second bottom plate, a fixed block connected to the other end of the piston rod of the lifting cylinder, a lifting bottom plate connected to the fixed block, spring guide columns respectively arranged on both sides of the top surface of the lifting bottom plate, lifting guide bearings fixed on both sides of the bottom surface of the bottom plate and passing through the lifting guide bearing holes, a second rubber roller fixing seat movably mounted on the spring guide columns, a second rubber roller pressure cover installed on the second rubber roller fixing seat by screws, a top plate connected to the guide column by screws and located above the second rubber roller fixing seat, and a second top dust-free paper rubber roller clamped between the second rubber roller fixing seat and the second rubber roller cover, a transmission block is installed at the bottom of the second bottom plate, a lifting pre-tightening spring installation hole is penetrated in the middle of the top of the second rubber roller fixing seat, and a lifting pre-tightening spring, the top of the lifting pre-tightening spring is against the bottom surface of the top plate, and the bottom is against the top surface of the second bottom plate.

8. The vertical bidirectional independent control wiping device according to claim 6, characterized in that, the unwinding reel assembly includes an unwinding reel, an unwinding reel spring pre-tightening seat and an unwinding reel spring pressing seat which are respectively fixed on the outer sides of the first side plate or the second side plate on both sides. Grooves are provided at both ends of the unwinding reel. Protrusions are provided at the shaft ends of the unwinding reel spring pre-tightening seat and the unwinding reel spring pressing seat. Both ends of the unwinding reel are respectively sleeved on the unwinding reel spring pre-tightening seat and the unwinding reel spring pressing seat. Through the cooperation of the protrusions and the grooves, relative rotation is prevented.

9. The vertical bidirectional independent control wiping device according to claim 6, characterized in that, the winding reel assembly includes a winding reel, a winding reel spring pre-tightening seat and a motor which are respectively fixed on the outer sides of the first side plate or the second side plate on both sides. Grooves are provided at both ends of the winding reel. Protrusions are provided at the shaft ends of the winding reel spring pre-tightening seat and the motor. Both ends of the winding reel are respectively sleeved on the winding reel spring pre-tightening seat and the motor. Through the cooperation of the protrusions and the grooves, relative rotation is prevented. The motor drives the winding reel to rotate, thereby driving the recovery of the non-woven paper.

10. The vertical bidirectional independent control wiping device according to claim 7, characterized in that, there is a height difference between the first top dust-free rubber roller and the second top dust-free rubber roller in the vertical direction. When the lifting cylinder does not lift, the first top dust-free rubber roller is higher than the second top dust-free rubber roller, and the two groups of non-woven papers of the X-direction wiping component contact the screen plate; when the lifting cylinder lifts to the top, the first top dust-free rubber roller is lower than the second top dust-free rubber roller, and the two groups of non-woven papers of the Y-direction wiping component contact the front and rear edges of the screen plate.

11. A method for wiping a screen plate of a vertical bidirectional independent control wiping device as claimed in claim 7, characterized in that, it includes the following steps: ⑴ According to the size of the screen plate to be wiped, set the positions and spacings of the two groups of non-woven papers of the X-direction wiping component, set the positions and spacings of the two groups of non-woven papers of the Y-direction wiping component, and use the limit ring to lock the position of the paper tube; ⑵ The first top non-woven paper rubber roller assembly includes a top non-woven paper rubber roller and a rubber roller spring lifting assembly respectively fixed on the inner sides of the first side plates on both sides. Adjust the rubber roller spring lifting assembly to adjust the height of the first top non-woven paper rubber roller, so as to adjust the tension of the non-woven paper of the X-direction wiping component; ⑶ The wiping motor and the first motor are started, and the motor drives the wiping device to move horizontally along the parallel track. The two groups of non-woven papers of the X-direction wiping component contact the screen plate, and wipe the left and right edges of the screen plate; ⑷ The lifting cylinder works, and the second top non-woven paper rubber roller assembly rises under the action of the lifting cylinder. When it reaches the top of the lift, the vertical height of the second top non-woven paper rubber roller is higher than that of the first top non-woven paper rubber roller, and the two groups of non-woven papers of the Y-direction wiping component contact the front and rear edges of the screen plate; ⑸ The second and third motors are started, and the Y-direction wiping component moves along the cylindrical axis direction, and the two groups of non-woven papers of the Y-direction wiping component wipe the front and rear edges of the screen plate.

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