An intelligent coating device and method for printing screen plate processing

Abstract

The present invention discloses an intelligent coating device and method for printing screen plate processing, and the present invention relates to the technical field of printing screen plate processing. By setting up a coating mechanism, it can simultaneously coat photosensitive glue on the front and back of the printing screen plate, and both the front coating assembly and the back coating assembly can not only coat the photosensitive glue on the printing screen plate during the upward movement, but also perform secondary photosensitive glue coating on the printing screen plate during the downward movement. Compared with the existing printing screen plate coating device, it can make full use of the time during the downward movement of the coating mechanism, greatly shortening the coating time of a single printing screen plate. The partition component can flexibly adjust the distance between the two partition components according to the width of the locally thickened part of the photosensitive glue, so that the distribution width of the photosensitive glue discharged from the gap between the coating roller and the glue outlet through groove is adapted to the distribution width of the photosensitive glue in the thickened area, and the coating requirements of the printing screen plate can be met without replacing the upper and lower coating components.

Description

Technical Field

[0001] The present invention relates to the technical field of printing screen plate processing, and specifically to an intelligent coating device and method for printing screen plate processing. Background Art

[0002] The coating device used in printing screen plate processing is one of the key devices to ensure printing quality. This device is mainly used to evenly coat photosensitive glue or other coatings on the screen plate for subsequent processing operations.

[0003] Among them, the coating methods include overall uniform coating and local thickening coating. For products with textured or frosted printing surfaces, local processing and coating of photosensitive glue are required. Local thickening of the photosensitive glue can increase the ink transfer amount, effectively cover the product texture, and make the silk screen pattern more saturated. For pure flat products, local thickening of the photosensitive glue can increase the three-dimensional sense of the text, improve the aesthetics and added value of the printed matter.

[0004] Referring to a fully automatic screen plate coater disclosed in the patent application with the publication number CN208661588U, by adding a first support rod, an electric heating plate, a coating rod, a first fixing plate, a cleaning brush, a second support rod, and a second fixing plate, this design can quickly dry the coated screen plate and can also remove dust from the screen plate before coating, solving the problem that the coating device of the original fully automatic screen plate coater is not comprehensive enough. By adding shock-absorbing springs, balls, and sliding grooves, this design can reduce the vibration generated during the coating process, solve the problem of poor shock absorption effect of the original fully automatic screen plate coater, and improve the protection performance;

[0005] The above-mentioned screen plate coater in the prior art has the following defects in actual use:

[0006] 1) In the existing screen plate preparation process, it is necessary to coat repeatedly many times to meet the coating thickness requirements of the photosensitive glue. However, the above coating mechanism can only coat the photosensitive glue on the screen plate during the upward movement. When performing secondary coating, the coating mechanism needs to move down to the lowest position before it can repeat the coating operation again. There is no coating operation during the downward movement of the coating mechanism, which not only prolongs the coating time of the photosensitive glue but also reduces the preparation efficiency of the screen plate;

[0007] 2) The coating width of the above coating mechanism is a fixed value, and it can only perform the coating operation of the photosensitive glue on the screen plate with a fixed width. It is impossible to flexibly adjust the coating width according to the local coating thickness of the photosensitive glue, thus restricting the application range of the coating device. And the method of replacing coating mechanisms with different widths not only increases the manufacturing cost but also increases the operation steps of replacing and debugging the coating mechanism, resulting in complicated and cumbersome operations.

[0008] Therefore, the present invention provides an intelligent coating device and method for printing screen plate processing to solve the above problems. Summary of the Invention

[0009] In view of the deficiencies of the prior art, the present invention provides an intelligent coating device and method for printing screen plate processing, which solves the problems that the existing screen plate preparation device can only perform photosensitive glue coating on the screen plate during the upward movement. During the secondary coating, the coating mechanism needs to move down to the lowest position before it can repeat the coating operation again. There is no coating operation during the downward movement of the coating mechanism, which not only prolongs the coating time of the photosensitive glue but also reduces the preparation efficiency of the screen plate. Moreover, the coating width of the screen plate preparation device is a fixed value, and it can only perform the operation of coating photosensitive glue on the screen plate with a fixed width. It is impossible to flexibly adjust the coating width according to the local coating thickness of the photosensitive glue, thus restricting the application range of the coating device. By replacing the coating mechanisms with different widths, not only the manufacturing cost is increased, but also the operation steps of replacing and debugging the coating mechanism are increased, resulting in complicated and cumbersome operations.

[0010] To achieve the above objectives, the present invention is realized through the following technical solutions: An intelligent coating device for printing screen plate processing includes a coating rack and an intelligent control panel for controlling the operation of the intelligent coating device, and further includes:

[0011] A coating power mechanism, including two coating power units, which are respectively arranged on the opposite inner walls on both sides of the coating rack and are used to provide power for the coating operation of the printing screen plate;

[0012] Four extrusion drive components, with every two adjacent extrusion drive components symmetrically arranged on both sides of the coating power unit on the same side, are used to provide driving force for the coating output of the photosensitive glue;

[0013] A printing screen plate clamping component, including an upper limit component detachably arranged on the inner wall of the coating rack and a lower limit component arranged at the bottom of the coating rack. The upper limit component and the lower limit component can flexibly adjust the clamping points according to the different heights and widths of the printing screen plate to adapt to printing screen plates of different sizes;

[0014] A coating mechanism, arranged above the lower limit component, can flexibly adjust according to the coating size of the printing screen plate. The coating mechanism rises or falls under the drive of the coating power mechanism, and can simultaneously perform photosensitive glue coating on the front and back of the printing screen plate during the rising or falling process of the coating mechanism, and can flexibly adjust the coating width of the thickening coating area according to the local thickening coating requirements of the printing screen plate.

[0015] Furthermore, the coating mechanism includes a front coating component and a back coating component symmetrically arranged on both sides of the lower limit component, and the structures of the front coating component and the back coating component are the same;

[0016] The front coating assembly includes a mounting base, a coating material storage assembly disposed at the bottom of the mounting base, and a coating material pumping assembly disposed at the top of the mounting base. A squeegee assembly for uniformly coating photosensitive glue on a printing screen plate is further disposed on one side of the coating material pumping assembly. The coating material storage assembly is used to store the configured photosensitive glue, and the coating material pumping assembly uniformly sucks out the photosensitive glue in the coating material storage assembly and coats it on the printing screen plate through the squeegee assembly.

[0017] Further, the coating material storage assembly includes a photosensitive glue storage tank fixedly arranged at the bottom of the mounting base. A first photosensitive glue output unit for conveying the photosensitive glue to the middle position of the coating material pumping assembly is arranged on the front of the photosensitive glue storage tank, and second photosensitive glue output units are arranged at both ends of the photosensitive glue storage tank. The two second photosensitive glue output units are respectively used to convey the photosensitive glue to the two end regions of the coating material pumping assembly;

[0018] The first photosensitive glue output unit includes a one-way valve one fixedly arranged on the outer wall of the photosensitive glue storage tank and communicating with the inside of the photosensitive glue storage tank. A glue conveying pipe one connected to the coating material pumping assembly is fixedly arranged at the output end of the one-way valve one;

[0019] The second photosensitive glue output unit includes a one-way valve two fixedly arranged at the end of the photosensitive glue storage tank and communicating with the inside of the photosensitive glue storage tank. A glue conveying pipe two connected to the coating material pumping assembly is fixedly arranged at the output end of the one-way valve two.

[0020] Further, the coating material pumping assembly includes a base fixedly arranged at the top of the mounting base. A through groove and a photosensitive glue pumping cavity are respectively formed below and above the outer wall of the base far from the lower limit assembly. A first extrusion assembly and a second extrusion assembly for pushing the photosensitive glue inside are symmetrically arranged on both sides of the inside of the photosensitive glue pumping cavity. A first supply chamber is formed in the space between the first extrusion assembly and the second extrusion assembly, and a second supply chamber and a third supply chamber are respectively formed in the spaces on both sides of the first supply chamber. A first pressure supply unit and a second pressure supply unit communicating with the second supply chamber and the third supply chamber are respectively arranged on both sides of the outer wall of the base, and a third photosensitive glue output unit communicating with the first supply chamber is further arranged at the middle position of the top of the base;

[0021] The third photosensitive glue output unit includes a one-way valve three fixedly arranged at the center position of the top of the base. A glue conveying pipe three for conveying the photosensitive glue into the squeegee assembly is further fixedly arranged at the output end of the one-way valve three;

[0022] The structures of the first pressurized supply unit and the second pressurized supply unit are the same. The first pressurized supply unit includes a check valve four connected to the second supply chamber. A glue delivery pipe four for conveying photosensitive glue to the squeegee assembly is fixedly arranged at one end of the check valve four away from the base.

[0023] Further, the structures of the first extrusion assembly and the second extrusion assembly are the same. The first extrusion assembly includes a push plate that is hermetically and slidably arranged in the photosensitive glue pumping chamber. A lead screw sleeve is fixedly arranged on the outer wall of the push plate away from the second extrusion assembly. A lead screw is threadedly connected inside the lead screw sleeve. One end of the lead screw rotates through the base and is fixedly provided with a gear two.

[0024] Further, the squeegee assembly includes a carrier seat and a slider fixedly arranged on the side wall of the carrier seat. A first cylinder is further arranged on one side of the slider away from the carrier seat. The output shaft of the first cylinder is fixedly connected to the side wall of the slider. A rotating seat is fixedly arranged on the side wall of the carrier seat opposite to the slider. A glue scraping execution assembly is rotatably arranged on the side wall of the rotating seat. Second cylinders are rotatably arranged on both sides of the opposite side walls of the glue scraping execution assembly and the rotating seat at the same time.

[0025] Further, the glue scraping execution assembly includes a mounting frame and an upper coating assembly and a lower coating assembly that are detachably arranged on the upper and lower sides of the same side wall of the mounting frame. An upper glue inlet pipe communicating with its interior is fixedly arranged at the middle position of the outer wall of the upper coating assembly. A lower glue inlet pipe communicating with its interior is fixedly arranged at the middle position of the outer wall of the lower coating assembly;

[0026] The upper coating assembly includes a glue storage hopper and adjusting through slots and glue outlet through slots opened on both sides of the top of the glue storage hopper. A sealing plate for sealing is detachably arranged at the top of the adjusting through slots. A coating roller is rotatably arranged inside the glue outlet through slots. Tiny gaps for outputting photosensitive glue are arranged between the outer wall of the coating roller and both sides of the inner wall of the glue outlet through slots. Partition assemblies are symmetrically arranged on both sides inside the glue storage hopper. The two partition assemblies are hermetically and slidably connected to the inner walls of the glue storage hopper, the sealing plate, and the outer wall of the coating roller;

[0027] The partition assembly includes a partition and side plates fixedly arranged on the side wall of the partition. A threaded limit rod is rotatably threaded inside the partition. A rubber anti-slip pad is rotatably arranged at the bottom end of the threaded limit rod.

[0028] Further, the coating power mechanism includes a lifting groove opened on the opposite inner walls of the coating frame. A gear one is rotatably arranged on both the upper and lower sides inside the lifting groove. A toothed belt is sleeved on the outer walls of the two gear ones at the same time. A slide rail is fixedly arranged at the middle position of the inner wall of the lifting groove. A lifting plate assembly is jointly arranged on the same side outer wall of the toothed belts on both sides;

[0029] The extrusion driving assembly includes driving grooves symmetrically formed on the inner wall of the coating rack, and racks are fixedly arranged on the inner walls of the driving grooves.

[0030] Furthermore, the lifting plate assembly includes two vertical plates arranged oppositely. On the front and rear sides of the opposite side walls of the two vertical plates, a cross plate is fixedly arranged, and sliding sleeves and connecting plates are fixedly arranged on the side walls of the two vertical plates facing away from each other.

[0031] The present invention also discloses an intelligent coating method for printing screen plate processing, which is used for an intelligent coating device for printing screen plate processing. The method includes the following steps:

[0032] Step 1: First, clamp the printing screen plate between the upper limit component and the lower limit component to keep the printing screen plate in a vertical state.

[0033] Step 2: Start the coating power mechanism to drive the coating mechanism to move up and down at a low speed and uniformly according to a preset program. During the up and down movement of the coating mechanism, the front and back sides of the printing screen plate are simultaneously coated with photosensitive glue.

[0034] Step 3: Adjust the output width of the photosensitive glue in the coating mechanism according to the design requirements for the coating thickness of the photosensitive glue in a local area of the printing screen plate, and repeat the operation steps of Step 2 multiple times to ensure that the local coating thickness meets the design requirements.

[0035] The present invention provides an intelligent coating device and method for printing screen plate processing. Compared with the prior art, the following beneficial effects are achieved:

[0036] 1. An intelligent coating device and method for printing screen plate processing. By setting a coating mechanism, which includes a front coating assembly and a back coating assembly, the front and back sides of the printing screen plate can be simultaneously coated with photosensitive glue. Moreover, the front coating assembly and the back coating assembly can not only coat the printing screen plate with photosensitive glue during the upward movement, but also perform secondary coating of the photosensitive glue on the printing screen plate during the downward movement. Compared with the existing printing screen plate coating device, the time during the downward movement of the coating mechanism can be fully utilized, greatly shortening the coating time of a single printing screen plate and improving the coating efficiency of the printing screen plate.

[0037] 2. An intelligent coating device and method for printing screen plate processing. By setting a squeegee assembly, the elevation angle of the glue scraping execution assembly can be pre-adjusted before the coating mechanism moves upward. The position of the upper coating assembly can protrude from that of the lower coating assembly, so that only the upper coating assembly is close to the printing screen plate and participates in the coating work of the photosensitive glue during the upward movement, avoiding the situation that the lower coating assembly destroys the flatness of the already coated photosensitive glue. And during the downward movement, the position of the lower coating assembly can protrude slightly from that of the upper coating assembly, so that only the lower coating assembly can participate in the coating work of the printing screen plate, avoiding the upper coating assembly from damaging the flatness of the photosensitive glue.

[0038] 3. An intelligent coating device and method for printing screen plate processing. By setting partition assemblies on both sides inside the upper coating assembly and the lower coating assembly, the distance between the two partition assemblies can be flexibly adjusted according to the width of the locally thickened part of the photosensitive glue and can be accurately adjusted with reference to the scale wire grooves, so that the width of the glue storage space between the two partition assemblies can be controlled, making the distribution width of the photosensitive glue discharged from the gap between the coating roller and the glue outlet through groove match the distribution width of the photosensitive glue in the thickened area. Thus, the coating requirements of the printing screen plate can be met without replacing the upper and lower coating assemblies, saving costs for the preparation of the coating device.

[0039] 4. An intelligent coating device and method for printing screen plate processing. By setting a coating raw material storage assembly, the photosensitive glue coating raw material can be stored in a relatively enclosed space. Compared with the traditional state of being directly exposed in the glue scraping hopper, it can avoid the photosensitive glue contacting air and light for a long time, which affects its fluidity and exposure properties, ensuring that the subsequent exposure operation can proceed normally and improving the reliability of printing screen plate preparation. By setting a coating raw material pumping assembly, it can utilize the linkage relationship formed when the coating mechanism moves up and down and the extrusion drive assembly, automatically suck the photosensitive glue in the coating raw material storage assembly into the photosensitive glue pumping cavity by using the first extrusion assembly and the second extrusion assembly, and then transport the photosensitive glue in the photosensitive glue pumping cavity to the glue scraping execution assembly again, achieving the effects of automatically replenishing and transporting the coating raw material. This not only ensures that a stable flow of photosensitive glue flows out during the up and down movement of the glue scraping execution assembly, but also ensures the uniformity of photosensitive glue coating. And during the coating period, there is no need to frequently replenish the photosensitive glue, enabling the work of the printing screen plate to continue, improving the processing efficiency of the printing screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0041] Figure 2 It is a schematic diagram of the structure of the present invention in the state of assembling the printing screen plate;

[0042] Figure 3 For the present inventionFigure 1 Schematic diagram of the enlarged structure of part A in

[0043] Figure 4 This is for the present invention Figure 1 Schematic diagram of the enlarged structure of part B in

[0044] Figure 5 Schematic diagram of the second overall three - dimensional structure of the present invention

[0045] Figure 6 Schematic diagram of the disassembled state structure of the present invention

[0046] Figure 7 This is for the present invention Figure 6 Schematic diagram of the enlarged structure of part C in

[0047] Figure 8 Schematic diagram of the lifting plate assembly structure of the present invention

[0048] Figure 9 Schematic diagram of the coating mechanism structure of the present invention

[0049] Figure 10 Schematic diagram of the front - side coating assembly structure of the present invention

[0050] Figure 11 Schematic diagram of the first disassembled state of the front - side coating assembly of the present invention

[0051] Figure 12 Schematic diagram of the second disassembled state of the front - side coating assembly of the present invention

[0052] Figure 13 Schematic diagram of the third disassembled state of the front - side coating assembly of the present invention

[0053] Figure 14 This is for the present invention Figure 13 Schematic diagram of the enlarged structure of part E in

[0054] Figure 15 Schematic diagram of the front view structure of the front - side coating assembly of the present invention

[0055] Figure 16 Schematic diagram of the squeegee assembly structure of the present invention

[0056] Figure 17 Schematic diagram of the glue - scraping execution assembly structure of the present invention

[0057] Figure 18 Schematic diagram of the disassembled state of the glue - scraping execution assembly of the present invention

[0058] Figure 19 This is for the present invention Figure 18 Schematic diagram of the enlarged structure of part F in

[0059] Figure 20 This is a schematic structural diagram of the partition component of the present invention.

[0060] In the figure: 1. Coating rack; 11. Lifting groove; 12. First gear; 13. Tooth belt; 14. Slide rail; 15. Lifting plate assembly; 151. Vertical plate; 152. Horizontal plate; 153. Sliding sleeve; 154. Connecting plate; 16. Driving groove; 17. Rack; 2. Intelligent control panel; 3. Upper limit component; 4. Lower limit component; 5. Coating mechanism; 51. Front coating component; 511. Mounting seat; 512. Photosensitive glue storage tank; 513. Scraper component; 5131. Bearing seat; 5132. Slide block; 5133. First cylinder; 5134. Rotating seat; 5135. Glue scraping execution component; f1. Mounting frame; f2. Upper coating component; f21. Glue storage hopper; f22. Adjusting through groove; f23. Glue outlet through groove; f24. Sealing plate; f25. Coating roller; f26. Partition component; f261. Partition; f262. Side plate; f263. Threaded limit rod; f27. Scale wire groove; f3. Lower coating component; f4. Upper feed pipe; f5. Lower feed pipe; 5136. Second cylinder; 514. First photosensitive glue output unit; a1. Check valve one; a2. Glue delivery pipe one; 515. Second photosensitive glue output unit; b1. Check valve two; b2. Glue delivery pipe two; 516. Base; 517. Through groove; 518. Photosensitive glue pumping chamber; 519. First extrusion component; 5191. Pushing plate; 5192. Lead screw sleeve; 5193. Lead screw; 5194. Second gear; 5110. Second extrusion component; 5111. Third photosensitive glue output unit; c1. Check valve three; c2. Glue delivery pipe three; 5112. First pressure supply unit; 5113. Second pressure supply unit; d1. Check valve four; d2. Glue delivery pipe four; 52. Back coating component. Specific embodiments

[0061] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] The present invention provides three technical solutions: an intelligent coating device for printing screen plate processing, specifically including the following embodiments:

[0063] As Figures 1 - 8 shows the first embodiment: an intelligent coating device for printing screen plate processing, including a coating rack 1 and an intelligent control panel 2 arranged on the front surface of the coating rack 1, and further including:

[0064] The coating power mechanism includes two coating power units, which are respectively arranged on the opposite inner walls of the coating frame 1 on both sides, and are used to provide power for the coating operation of the printing screen;

[0065] Four extrusion drive assemblies, each two adjacent extrusion drive assemblies are symmetrically arranged on both sides of the coating power unit on the same side, and are used to provide driving force for the coating output of the photosensitive adhesive;

[0066] The printing screen clamping assembly comprises an upper limit assembly 3 detachably arranged on the inner wall of the coating frame 1 and a lower limit assembly 4 arranged at the bottom of the coating frame 1, wherein the upper limit assembly 3 and the lower limit assembly 4 can flexibly adjust the clamping point according to different heights and widths of the printing screen to adapt to printing screens of different sizes;

[0067] The coating mechanism 5 is arranged above the lower limit assembly 4. The coating mechanism 5 can be flexibly adjusted according to the coating size of the printing screen. The coating mechanism 5 rises or falls under the drive of the coating power mechanism, and can simultaneously coat the front and back of the printing screen with photosensitive adhesive during the rising or falling process of the coating mechanism 5, and can flexibly adjust the coating width of the thickened coating area according to the local thickening coating requirements of the printing screen.

[0068] The coating power mechanism includes a lifting groove 11 provided on the inner wall relative to the coating frame 1, gears 12 are rotatably provided on the upper and lower sides of the lifting groove 11, toothed belts 13 are sleeved on the outer walls of the two gears 12 at the same time, and a slide rail 14 is fixedly provided at the middle position of the inner wall of the lifting groove 11, and a lifting plate assembly 15 is commonly provided on the outer wall of the same side of the toothed belts 13 on both sides, a servo motor is provided in the inner walls of both sides of the coating frame 1, and the output shaft of each servo motor is fixedly connected to a gear 12, and the servo motor runs according to a preset program, which can be set according to demand, and the extrusion drive assembly includes a driving groove 16 symmetrically provided on the inner wall of the coating frame 1, and a rack 17 is fixedly provided on the inner wall of the driving groove 16;

[0069] The lifting plate assembly 15 includes two vertical plates 151 arranged opposite to each other, and a horizontal plate 152 is fixedly arranged on both sides of the front and rear sides of the opposite side walls of the two vertical plates 151, and a sliding sleeve 153 and a connecting plate 154 are fixedly arranged on the side walls of the two vertical plates 151 facing away from each other. A gap is arranged between the two horizontal plates 152, and the gap is used to avoid the lower limit assembly 4 and the printing screen when moving upward.

[0070] like Figures 9 - 16The second embodiment is shown: The coating mechanism 5 includes a front coating assembly 51 and a back coating assembly 52 symmetrically arranged on both sides of the lower limit assembly 4. The front coating assembly 51 and the back coating assembly 52 have the same structure and are respectively used for simultaneously coating the photosensitive glue on the front and back of the printing screen. The front coating assembly 51 includes a mounting seat 511, a coating raw material storage assembly arranged at the bottom of the mounting seat 511, and a coating raw material pumping assembly arranged at the top of the mounting seat 511. And a squeegee assembly 513 for evenly coating the photosensitive glue on the printing screen is arranged on one side of the coating raw material pumping assembly. The coating raw material storage assembly is used to store the configured photosensitive glue. The coating raw material pumping assembly uniformly sucks out the photosensitive glue in the coating raw material storage assembly and coats it on the printing screen through the squeegee assembly 513.

[0071] The coating raw material storage assembly includes a photosensitive glue storage tank 512 fixedly arranged at the bottom of the mounting seat 511. A first photosensitive glue output unit 514 for transporting the photosensitive glue to the middle position of the coating raw material pumping assembly is arranged on the front of the photosensitive glue storage tank 512. And second photosensitive glue output units 515 are arranged at both ends of the photosensitive glue storage tank 512. The two second photosensitive glue output units 515 are respectively used for transporting the photosensitive glue to both ends of the coating raw material pumping assembly. The first photosensitive glue output unit 514 includes a one-way valve a1 fixedly arranged on the outer wall of the photosensitive glue storage tank 512 and communicating with the inside of the photosensitive glue storage tank 512. A glue delivery pipe a2 connected to the coating raw material pumping assembly is fixedly arranged at the output end of the one-way valve a1. The glue delivery pipe a2 communicates with the middle position of the first supply chamber.

[0072] The second photosensitive glue output unit 515 includes a one-way valve b1 fixedly arranged at the end of the photosensitive glue storage tank 512 and communicating with the inside of the photosensitive glue storage tank 512. A glue delivery pipe b2 connected to the coating raw material pumping assembly is fixedly arranged at the output end of the one-way valve b1. The two glue delivery pipes b2 respectively communicate with one end of the second supply chamber and the third supply chamber far from the first supply chamber. The volumes of the second supply chamber and the third supply chamber are the same. And in the initial state when the coating mechanism 5 is at the lowest position, the sum of the volumes of the second supply chamber and the third supply chamber is equal to the volume of the first supply chamber. When the first extrusion assembly 519 and the second extrusion assembly 5110 move, the volumes of the first supply chamber, the second supply chamber, and the third supply chamber are in a dynamically changing state; a feeding port is opened on the outer wall of the photosensitive glue storage tank 512 for replenishing the photosensitive glue into it and at the same time maintaining the air communication inside and outside the photosensitive glue storage tank 512.

[0073] The coating material pumping assembly includes a base 516 fixedly arranged on the top of the mounting seat 511. A through groove 517 and a photosensitive adhesive pumping chamber 518 are respectively formed below and above the outer wall of the base 516 away from the lower limit assembly 4. On both sides inside the photosensitive adhesive pumping chamber 518, a first extrusion assembly 519 and a second extrusion assembly 5110 for pushing out the internal photosensitive adhesive are symmetrically arranged. The space between the first extrusion assembly 519 and the second extrusion assembly 5110 forms a first supply chamber, and the spaces on both sides of the first supply chamber respectively form a second supply chamber and a third supply chamber. On both sides of the outer wall of the base 516, a first pressurized supply unit 5112 and a second pressurized supply unit 5113 communicating with the second supply chamber and the third supply chamber are respectively arranged. And a third photosensitive adhesive output unit 5111 communicating with the first supply chamber is also arranged at the middle position on the top of the base 516.

[0074] When the first extrusion assembly 519 and the second extrusion assembly 5110 run towards each other, the third photosensitive adhesive output unit 5111 is used to extrude the photosensitive adhesive in the first supply chamber into the middle area of the upper coating assembly f2, and at the same time, two second photosensitive adhesive output units 515 are used to respectively suck the photosensitive adhesive in the photosensitive adhesive storage tank 512 into the second supply chamber and the third supply chamber. When running away from each other, the first photosensitive adhesive output unit 514 is used to suck the photosensitive adhesive in the photosensitive adhesive storage tank 512 into the first supply chamber, and at the same time, the photosensitive adhesive in the second supply chamber and the third supply chamber is extruded into the middle area of the lower coating assembly f3.

[0075] The third photosensitive adhesive output unit 5111 includes a check valve three c1 fixedly arranged at the central position on the top of the base 516. The output end of the check valve three c1 is also fixedly provided with a glue delivery pipe three c2 for conveying the photosensitive adhesive into the squeegee assembly 513.

[0076] The structures of the first pressurized supply unit 5112 and the second pressurized supply unit 5113 are the same. The first pressurized supply unit 5112 includes a check valve four d1 communicating with the second supply chamber. One end of the check valve four d1 away from the base 516 is fixedly provided with a glue delivery pipe four d2 for conveying the photosensitive adhesive to the squeegee assembly 513. The glue delivery pipes four d2 in the first pressurized supply unit 5112 and the second pressurized supply unit 5113 are respectively connected to two lower glue inlet pipes f5.

[0077] The structures of the first extrusion assembly 519 and the second extrusion assembly 5110 are the same. The first extrusion assembly 519 includes a push plate 5191 that is hermetically and slidably arranged in the photosensitive glue pumping cavity 518. A lead screw sleeve 5192 is fixedly arranged on the outer wall of the push plate 5191 away from the second extrusion assembly 5110. A lead screw 5193 is threadedly connected inside the lead screw sleeve 5192. One end of the lead screw 5193 rotatably penetrates through the base 516 and is fixedly provided with a second gear 5194. Sealing strips are fixedly sleeved around the outer wall of the push plate 5191 to ensure a sealed sliding connection state with the inner wall of the photosensitive glue pumping cavity 518. The lead screw 5193 and the base 516 are rotatably connected through a bearing; both ends of the mounting seat 511 and the two vertical plates 151 are connected by bolts. The second gear 5194 and the rack 17 are meshed and connected. The sliding sleeve 153 is slidably sleeved on the outer wall of the slide rail 14. The connecting plate 154 and one side of the outer wall of the toothed belt 13 are fixedly connected by bolts.

[0078] The squeegee assembly 513 includes a carrier seat 5131 and a slider 5132 fixedly arranged on the side wall of the carrier seat 5131. On the side of the slider 5132 away from the carrier seat 5131, a first air cylinder 5133 is further arranged. The output shaft of the first air cylinder 5133 is fixedly connected to the side wall of the slider 5132. A rotating seat 5134 is fixedly arranged on the side wall of the carrier seat 5131 opposite to the slider 5132. A squeegee execution assembly 5135 is rotatably arranged on the side wall of the rotating seat 5134. Second air cylinders 5136 are rotatably arranged on both sides of the opposite side walls of the squeegee execution assembly 5135 and the rotating seat 5134 at the same time. The first air cylinder 5133 is fixedly arranged on the outer wall of the base 516. The slider 5132 is slidably arranged inside the through groove 517. One end of the slider 5132 slidably penetrates through the base 516 and extends to the outside. The output shaft of the first air cylinder 5133 can push the slider 5132 to move within a moving distance along the inner wall of the through groove 517. The carrier seat 5131 is tightly attached to the outer wall of the base 516.

[0079] As Figures 17 - 20 The third embodiment is shown: The squeegee execution assembly 5135 includes a mounting frame f1 and an upper coating assembly f2 and a lower coating assembly f3 that are detachably arranged on the upper and lower sides of the same side wall of the mounting frame f1. The structures of the upper coating assembly f2 and the lower coating assembly f3 are the same. An upper feed pipe f4 communicating with its interior is fixedly arranged at the middle position of the outer wall of the upper coating assembly f2. A lower feed pipe f5 communicating with its interior is fixedly arranged at the middle position of the outer wall of the lower coating assembly f3;

[0080] The upper coating assembly f2 includes a glue storage hopper f21, adjusting through slots f22 and glue outlet through slots f23 opened on both sides of the top of the glue storage hopper f21. A sealing plate f24 for sealing is detachably arranged at the top of the adjusting through slot f22. A coating roller f25 is rotatably arranged inside the glue outlet through slot f23. Tiny gaps for photosensitive glue output are arranged on both sides of the outer wall of the coating roller f25 and the inner wall of the glue outlet through slot f23. And partition assemblies f26 are symmetrically arranged on both sides inside the glue storage hopper f21. The two partition assemblies f26 are hermetically and slidably connected to the inner walls of the glue storage hopper f21, the sealing plate f24 and the outer wall of the coating roller f25.

[0081] The partition assembly f26 includes a partition f261 and side plates f262 fixedly arranged on the side walls of the partition f261. A threaded limit rod f263 is rotatably arranged inside the partition f261 in a threaded manner. A rubber anti-slip pad is rotatably arranged at the bottom end of the threaded limit rod f263.

[0082] An embodiment of the present invention also provides an intelligent coating method for printing screen plate processing, which is used for an intelligent coating device for printing screen plate processing. The method includes the following steps:

[0083] Step 1: First, clamp the printing screen plate between the upper limit component 3 and the lower limit component 4, and keep the printing screen plate in a vertical state.

[0084] The specific process is as follows: Clamps are slidably sleeved on both sides of the outer walls of the upper limit component 3 and the lower limit component 4. Adjust the distance between the two clamps at the same horizontal position to be slightly less than the width of the printing screen plate, and at the same time adjust the height of the upper limit component 3 relative to the lower limit component 4 to be adapted to the height of the printing screen plate, so that the clamps can just clamp the printing screen plate.

[0085] With the help of the intelligent control panel 2, control the second cylinder 5136 to push the glue scraping execution component 5135 to turn downward by a preset angle. After the glue scraping execution component 5135 turns over, the position of the upper coating assembly f2 protrudes from the lower coating assembly f3, that is, the upper coating assembly f2 is in a forward state compared with the lower coating assembly f3. At this time, the side wall of the glue storage hopper f21 of the upper coating assembly f2 close to the printing screen plate and the outer wall of the coating roller f25 far from the glue storage hopper f21 are in the same vertical plane. Then, the first cylinder 5133 pushes the slider 5132 to move a preset distance along the through slot 517 towards the position close to the printing screen plate. At this time, the outer walls of the glue storage hopper f21 and the coating roller f25 in the upper coating assembly f2 located on the outermost side are both kept at a preset tiny gap from the printing screen plate.

[0086] With the help of the intelligent control panel 2, two servo motors located on both sides inside the coating rack 1 are simultaneously turned on. The servo motors rotate at a low speed and uniformly according to a preset program. While rotating at a low speed, the toothed belt 13 drives the lifting plate assembly 15 to move upward. During the upward movement, the second gear 5194 rotates under the drive of the rack 17 at the corresponding position. The two screw sleeves 5192 at the corresponding positions move towards each other under the drive of the second gear 5194 at the corresponding position. The photosensitive glue in the space between the two pushing plates 5191 is squeezed and enters the upper coating assembly f2 through the check valve three c1, the glue delivery pipe three c2, and the upper glue inlet pipe f4. The photosensitive glue is located in the space between the two partition assemblies f26 and flows out through the small gap between the coating roller f25 and the glue outlet slot f23. This part of the photosensitive glue is initially roll-pressed by the coating roller f25 and coated on the printing screen. As the glue storage hopper f21 continues to move upward along the movement trajectory of the coating roller f25, the photosensitive glue is more evenly distributed on the printing screen under the scraping action of the glue storage hopper f21. At the same time, during the process of the pushing plates 5191 moving towards each other, the pressure in the second supply chamber and the third supply chamber gradually decreases, and the negative pressure formed sucks the photosensitive glue in the photosensitive glue storage tank 512 into the second supply chamber and the third supply chamber respectively through the two second photosensitive glue output units 515 on both sides.

[0087] When the coating mechanism 5 reaches the preset upper limit position at the top of the printing screen, the first cylinder 5133 pulls the bearing seat 5131 to move away from the printing screen along the through slot 517 and return to the original position. Then, the two second cylinders 5136 simultaneously pull the glue scraping execution assembly 5135 to turn upward by a preset angle, so that the position of the lower coating assembly f3 protrudes slightly from the upper coating assembly f2. Then, the first cylinder 5133 pushes the slider 5132 to move a preset distance towards the printing screen again, so that there is a small preset distance between the coating roller f25, the glue storage hopper f21 in the lower coating assembly f3 and the printing screen. Then, the servo motor drives the coating mechanism 5 to move downward uniformly. The rack 17 drives the second gear 5194 to rotate in the reverse direction, and the two pushing plates 5191 at the relative positions move away from each other. At this time, the photosensitive glue in the second supply chamber and the third supply chamber enters the middle position in the lower coating assembly f3 through the first pressure supply unit 5112, the second pressure supply unit 5113, and the two lower glue inlet pipes f5 at the same time. The photosensitive glue flows out again through the small gap between the coating roller f25 and the glue outlet slot f23 in the lower coating assembly f3 and is evenly coated on the printing screen. At the same time, when the pushing plates 5191 on both sides move away from each other, the air pressure in the first supply chamber decreases, and the negative pressure formed sucks part of the photosensitive glue in the photosensitive glue storage tank 512 into the first supply chamber to prepare for the next coating.

[0088] When it is necessary to thicken the coating in a local area after the overall coating of the printing screen plate, the sealing plate f24 can be removed and the positions of the two partition assemblies f26 can be moved with reference to the scale wire grooves f27. After the positions of the partition assemblies f26 are determined, the threaded limit rod f263 is rotated again. The position of the partition f261 is locked by the frictional force between the threaded limit rod f263 and the inner wall of the glue storage hopper f21. Then, the adjustment through groove f22 is sealed with the sealing plate f24, and the coating can be carried out again. It should be noted that at this time, the upward movement height of the coating mechanism 5 needs to be reset, and the height setting value needs to be adapted to the height of the photosensitive glue in the thickened part. Moreover, the upward movement height of the coating mechanism 5 can meet this requirement by reprogramming the servo motor.

[0089] Step 2: Start the coating power mechanism to drive the coating mechanism 5 to move upward and downward at a low speed and uniformly according to a preset program. During the upward and downward movement of the coating mechanism 5, the front and back sides of the printing screen plate are coated with photosensitive glue at the same time.

[0090] Step 3: Adjust the output width of the photosensitive glue in the coating mechanism 5 according to the design requirements for the coating thickness of the photosensitive glue in the local area of the printing screen plate. Repeat the operation steps of Step 2 several times to ensure that the local coating thickness meets the design requirements.

[0091] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0092] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent coating device for printing screen plate processing, comprising a coating rack and an intelligent control panel for controlling the operation of the intelligent coating device, characterized in that, Further comprising: A coating power mechanism, including two coating power units, which are respectively arranged on the opposite inner walls on both sides of the coating rack, and are used to provide power for the coating operation of the printing screen; Four extrusion drive components, with every two adjacent extrusion drive components symmetrically arranged on both sides of the coating power unit on the same side, and are used to provide driving force for the coating output of the photosensitive glue; A printing screen clamping component, including an upper limit component detachably arranged on the inner wall of the coating rack and a lower limit component arranged at the bottom of the coating rack. The upper limit component and the lower limit component can flexibly adjust the clamping points according to the different heights and widths of the printing screen, so as to adapt to printing screens of different sizes; A coating mechanism, arranged above the lower limit component. The coating mechanism can be flexibly adjusted according to the coating size of the printing screen. The coating mechanism rises or falls under the drive of the coating power mechanism, and can simultaneously coat the front and back sides of the printing screen with photosensitive glue during the rising or falling process of the coating mechanism, and can flexibly adjust the coating width of the thickened coating area according to the local thickening coating requirements of the printing screen; The coating mechanism includes a front coating component and a back coating component symmetrically arranged on both sides of the lower limit component. The front coating component includes a mounting seat, a coating raw material storage component arranged at the bottom of the mounting seat, and a coating raw material pumping component arranged at the top of the mounting seat; The coating raw material storage component includes a photosensitive glue storage tank fixedly arranged at the bottom of the mounting seat. A first photosensitive glue output unit for conveying photosensitive glue to the middle position of the coating raw material pumping component is arranged on the front of the photosensitive glue storage tank, and second photosensitive glue output units are arranged at both ends of the photosensitive glue storage tank. The two second photosensitive glue output units are respectively used to convey photosensitive glue to the two end areas of the coating raw material pumping component; The first photosensitive glue output unit includes a one-way valve one fixedly arranged on the outer wall of the photosensitive glue storage tank and communicated with the inside of the photosensitive glue storage tank. A glue conveying pipe one connected to the coating raw material pumping component is fixedly arranged on the output end of the one-way valve one; The second photosensitive glue output unit includes a one-way valve two fixedly arranged at the end of the photosensitive glue storage tank and communicated with the inside of the photosensitive glue storage tank. A glue conveying pipe two connected to the coating raw material pumping component is fixedly arranged on the output end of the one-way valve two.

2. The intelligent coating device for printing screen plate processing according to claim 1, wherein: The structures of the front coating component and the back coating component are the same; and a scraper component for evenly coating the photosensitive glue on the printing screen is also arranged on one side of the coating raw material pumping component. The coating raw material storage component is used to store the configured photosensitive glue, and the coating raw material pumping component evenly sucks out the photosensitive glue in the coating raw material storage component and coats it on the printing screen through the scraper component.

3. An intelligent coating device for printing screen plate processing according to claim 1, characterized in that: The coating material pumping assembly includes a base fixedly arranged on the top of the mounting seat. A through groove and a photosensitive glue pumping cavity are respectively formed below and above the outer wall of the base away from the lower limit assembly. On both sides inside the photosensitive glue pumping cavity, a first extrusion assembly and a second extrusion assembly for pushing the internal photosensitive glue out are symmetrically arranged. The space between the first extrusion assembly and the second extrusion assembly forms a first supply chamber, and the spaces on both sides of the first supply chamber respectively form a second supply chamber and a third supply chamber. On both sides of the outer wall of the base, a first pressurized supply unit and a second pressurized supply unit communicating with the second supply chamber and the third supply chamber are respectively arranged. And a third photosensitive glue output unit communicating with the first supply chamber is also arranged at the middle position on the top of the base; The third photosensitive glue output unit includes a check valve three fixedly arranged at the center position on the top of the base. The output end of the check valve three is also fixedly provided with a glue delivery pipe three for delivering the photosensitive glue into the squeegee assembly; The first pressurized supply unit and the second pressurized supply unit have the same structure. The first pressurized supply unit includes a check valve four communicating with the second supply chamber. One end of the check valve four away from the base is fixedly provided with a glue delivery pipe four for delivering the photosensitive glue to the squeegee assembly.

4. An intelligent coating device for printing screen plate processing according to claim 3, wherein: The first extrusion assembly and the second extrusion assembly have the same structure. The first extrusion assembly includes a push plate sealingly and slidably arranged in the photosensitive glue pumping cavity. A lead screw sleeve is fixedly arranged on the outer wall of the push plate away from the second extrusion assembly. A lead screw is threadedly connected inside the lead screw sleeve. And one end of the lead screw rotatably penetrates through the base and is fixedly provided with a gear two. The extrusion driving assembly includes driving grooves symmetrically formed on the inner wall of the coating rack. A rack is fixedly arranged on the inner wall of the driving groove. The rack and the gear two are meshed with each other.

5. The intelligent coating device for printing screen plate processing according to claim 2, characterized in that: The squeegee assembly includes a carrier seat and a slider fixedly arranged on the side wall of the carrier seat. One side of the slider away from the carrier seat is also provided with a first air cylinder. The output shaft of the first air cylinder is fixedly connected with the side wall of the slider. A rotating seat is fixedly arranged on the side wall of the carrier seat opposite to the slider. A squeegee execution assembly is rotatably arranged on the side wall of the rotating seat. And second air cylinders are rotatably arranged on both sides of the opposite side walls of the squeegee execution assembly and the rotating seat at the same time.

6. The intelligent coating device for printing screen plate processing according to claim 5, wherein: The squeegee execution assembly includes a mounting frame and an upper coating assembly and a lower coating assembly detachably arranged on the upper and lower sides of the same side wall of the mounting frame. A feed pipe communicating with the inside is fixedly arranged at the middle position on the outer wall of the upper coating assembly. A lower feed pipe communicating with the inside is fixedly arranged at the middle position on the outer wall of the lower coating assembly; The upper coating assembly includes a glue storage hopper and adjusting through grooves and glue outlet through grooves formed on both sides of the top of the glue storage hopper. A sealing plate for sealing is detachably arranged at the top of the adjusting through groove. A coating roller is rotatably arranged inside the glue outlet through groove. Tiny gaps for outputting the photosensitive glue are arranged between the outer wall of the coating roller and the inner walls on both sides of the glue outlet through groove. And partition assemblies are symmetrically arranged on both sides inside the glue storage hopper. The two partition assemblies are sealingly and slidably connected to the inner walls of the glue storage hopper, the sealing plate and the outer wall of the coating roller; The partition assembly includes a partition and side plates fixedly arranged on the side walls of the partition. A threaded limit rod is rotationally arranged inside the partition in a threaded manner, and a rubber anti-slip pad is rotationally arranged at the bottom end of the threaded limit rod.

7. An intelligent coating device for printing screen plate processing according to claim 1, characterized in that: The coating power mechanism includes lifting grooves opened on the opposite inner walls of the coating rack. First-stage gears are rotationally arranged on both the upper and lower sides inside the lifting grooves. A toothed belt is sleeved on the outer walls of the two first-stage gears. A slide rail is fixedly arranged at the middle position of the inner wall of the lifting groove. A lifting plate assembly is jointly arranged on the same side outer wall of the toothed belts on both sides.

8. An intelligent coating device for printing screen plate processing according to claim 7, wherein: The lifting plate assembly includes two vertically arranged plates arranged oppositely. Cross plates are fixedly arranged on the front and rear sides of the opposite side walls of the two vertically arranged plates. Slide sleeves and connecting plates are fixedly arranged on the side walls of the two vertically arranged plates facing away from each other.

9. An intelligent coating method for printing screen plate processing, characterized in that: For the intelligent coating device for printing screen plate processing as described in any one of claims 1-8, the method includes the following steps: Step 1: First, clamp the printing screen plate between the upper limit component and the lower limit component to keep the printing screen plate in a vertical state; Step 2: Start the coating power mechanism to drive the coating mechanism to move up and down slowly and evenly according to a preset program. During the up and down movement of the coating mechanism, the front and back sides of the printing screen plate are simultaneously coated with photosensitive glue; Step 3: Adjust the output width of the photosensitive glue in the coating mechanism according to the design requirements for the coating thickness of the photosensitive glue in the local area of the printing screen plate. Repeat the operation steps of Step 2 multiple times to ensure that the local coating thickness meets the design requirements.

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