Intelligent coating device and method for printing screen plate processing

Abstract

The invention discloses an intelligent coating device and method for printing screen processing, and relates to the technical field of printing screen processing. Through the arrangement of the coating mechanism, the front face and the back face of the printing screen can be coated with photo-sensitive glue at the same time, and the front face coating assembly and the back face coating assembly not only can conduct photo-sensitive glue coating on the printing screen in the upward moving process, but also can conduct secondary photo-sensitive glue coating on the printing screen in the downward moving process; compared with an existing printing screen plate coating device, the time of the downward moving process of the coating mechanism can be fully utilized, so that the coating time of a single printing screen plate is greatly shortened, and the distance between the two partition plate assemblies can be flexibly adjusted according to the width of a local coating thickening part of photosensitive resist; the distribution width of the photo-sensitive resist discharged from the gap between the coating roller and the glue outlet through groove is matched with the distribution width of the photo-sensitive resist in the thickening area, and the coating requirement of a printing screen can be met on the premise that the upper coating assembly and the lower coating assembly are not replaced.

Description

Technical Field

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

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

[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 adhesive are required. Local thickening of the photosensitive adhesive can increase the amount of ink applied, effectively cover the product texture, and make the silk-screen graphics fuller. For purely flat products, local thickening of the photosensitive adhesive can increase the three-dimensional sense of the text and enhance the aesthetics and added value of the printed products.

[0004] A fully automatic screen coating machine disclosed in the patent application with reference 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, the design can quickly dry the screen after coating, and can also remove dust and clean the screen before coating, solving the problem that the coating device of the original fully automatic screen coating machine is not fully set, and by adding a shock-absorbing spring, a ball and a slide groove, the design can reduce the vibration generated during the coating process, solving the problem that the shock-absorbing effect of the original fully automatic screen coating machine is not good, and improving the protection performance; The above-mentioned prior art screen coating machine has the following defects in actual use: 1) The existing screen needs to be coated repeatedly during the preparation process to meet the coating thickness requirement of the photosensitive adhesive, and the coating mechanism can only coat the screen with photosensitive adhesive during the upward movement. During the second coating, the coating mechanism needs to be moved down to the bottom before the coating operation can be repeated again. There is no coating operation during the downward movement of the coating mechanism, which not only prolongs the coating time of the photosensitive adhesive, but also reduces the preparation efficiency of the screen; 2) The coating width of the above-mentioned coating mechanism is a fixed value, and the photosensitive adhesive coating operation can only be performed on a fixed-width screen. The coating width cannot be flexibly adjusted according to the local coating thickness of the photosensitive adhesive, thereby restricting the application scope of the coating device. Replacing coating mechanisms of different widths not only increases the manufacturing cost, but also increases the operational steps of replacing and debugging the coating mechanism, resulting in cumbersome and complicated operations.

[0005] Therefore, the present invention proposes an intelligent coating device and method for printing screen processing to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an intelligent coating device and method for printing screen processing, which solves the problem that the existing screen preparation device can only coat the screen with photosensitive glue during the upward movement process, and the coating mechanism needs to move down to the bottom for the second coating before repeating the coating operation. 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. In addition, the coating width of the screen preparation device is a fixed value, and the operation of coating the photosensitive glue can only be performed on the screen of the fixed width. The coating width cannot be flexibly adjusted according to the local coating thickness of the photosensitive glue, thereby restricting the application scope of the coating device. The method of replacing coating mechanisms of different widths not only increases the manufacturing cost, but also increases the operation steps of replacing and debugging the coating mechanism, resulting in cumbersome and complicated operations.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent coating device for printing screen processing, including a coating frame and an intelligent control panel for controlling the operation of the intelligent coating device, and also including: The coating power mechanism includes two coating power units, which are respectively arranged on opposite inner walls of both sides of the coating frame and are used to provide power for the coating operation of the printing screen; 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; The printing screen clamping assembly includes an upper limit assembly detachably arranged on the inner wall of the coating frame and a lower limit assembly arranged at the bottom of the coating frame, wherein the upper limit assembly and the lower limit assembly can flexibly adjust the clamping point according to the different heights and widths of the printing screen to adapt to printing screens of different sizes; The coating mechanism is arranged above the lower limit assembly. 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 of the printing screen with adhesive 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.

[0008] Furthermore, the coating mechanism comprises a front coating component and a back coating component symmetrically arranged on both sides of the lower limit component, and the front coating component and the back coating component have the same structure; The front coating assembly includes a mounting seat, a coating material storage assembly arranged at the bottom of the mounting seat, and a coating material pumping assembly arranged at the top of the mounting seat, and a scraper assembly for evenly coating the photosensitive adhesive on the printing screen is also arranged on one side of the coating material pumping assembly. The coating material storage assembly is used to store the configured photosensitive adhesive, and the coating material pumping assembly sucks the photosensitive adhesive out of the coating material storage assembly at a uniform speed and then coats it on the printing screen through the scraper assembly.

[0009] Furthermore, the coating material storage assembly includes a photosensitive glue storage box fixedly arranged at the bottom of the mounting seat, a No. 1 photosensitive glue output unit for delivering photosensitive glue to the middle position of the coating material pumping assembly is arranged on the front of the photosensitive glue storage box, and No. 2 photosensitive glue output units are arranged at both ends of the photosensitive glue storage box, and the two No. 2 photosensitive glue output units are respectively used to deliver photosensitive glue to the two end areas of the coating material pumping assembly; The first photosensitive glue output unit includes a one-way valve fixedly arranged on the outer wall of the photosensitive glue storage box and connected to the inside of the photosensitive glue storage box, and a glue delivery pipe connected to the coating raw material pumping assembly is fixedly arranged on the output end of the one-way valve; The No. 2 photosensitive glue output unit includes a second one-way valve fixedly arranged at the end of the photosensitive glue storage box and connected to the inside of the photosensitive glue storage box. The output end of the second one-way valve is fixedly provided with a second glue delivery pipe connected to the coating raw material pumping assembly.

[0010] Further, the coating material pumping assembly includes a base fixedly arranged on the top of the mounting seat, and a through groove and a photosensitive glue pumping chamber are respectively opened below and above the outer wall of the base away from the lower limit assembly, and a No. 1 extrusion assembly and a No. 2 extrusion assembly for pushing out the internal photosensitive glue are symmetrically arranged on both sides of the interior of the photosensitive glue pumping chamber, and the space between the No. 1 extrusion assembly and the No. 2 extrusion assembly forms a No. 1 supply chamber, and the spaces on both sides of the No. 1 supply chamber form a No. 2 supply chamber and a No. 3 supply chamber, respectively. A No. 1 pressurized supply unit and a No. 2 pressurized supply unit connected to the No. 2 supply chamber and the No. 3 supply chamber are respectively arranged on both sides of the outer wall of the base, and a No. 3 photosensitive glue output unit connected to the No. 1 supply chamber is also arranged at the top middle position of the base; The third photosensitive adhesive output unit includes a one-way valve three fixedly arranged at the center of the top of the base, and a glue delivery pipe three for delivering the photosensitive adhesive to the scraper assembly is also fixedly arranged at the output end of the one-way valve three; The structure of the No. 1 pressurized supply unit is the same as that of the No. 2 pressurized supply unit. The No. 1 pressurized supply unit includes a one-way valve four connected to the No. 2 supply chamber. The one end of the one-way valve four away from the base is fixedly provided with a glue delivery pipe four for delivering the photosensitive glue to the scraper assembly.

[0011] Furthermore, the structures of the No. 1 extrusion assembly and the No. 2 extrusion assembly are the same. The No. 1 extrusion assembly includes a push plate that is sealingly and slidably arranged in the photosensitive adhesive pumping chamber. A screw sleeve is fixedly arranged on the outer wall of the push plate away from the No. 2 extrusion assembly. A screw is connected to the internal thread of the screw sleeve, and one end of the screw rotates through the base and is fixedly provided with gear 2.

[0012] Furthermore, the scraper assembly includes a bearing seat and a slider fixedly arranged on the side wall of the bearing seat, a No. 1 cylinder is also arranged on the side of the slider away from the bearing seat, the output shaft of the No. 1 cylinder is fixedly connected to the side wall of the slider, a rotating seat is fixedly arranged on the side wall of the bearing seat opposite to the slider, a scraper actuator assembly is rotatably arranged on the side wall of the rotating seat, and a No. 2 cylinder is rotatably arranged on both sides of the scraper actuator assembly and the opposite side walls of the rotating seat.

[0013] Furthermore, the scraping glue execution component includes a mounting frame and an upper coating component and a lower coating component detachably arranged on the upper and lower sides of the same side wall of the mounting frame, an upper glue inlet pipe connected to the interior of the upper coating component is fixedly arranged at the middle position of the outer wall thereof, and a lower glue inlet pipe connected to the interior of the lower coating component is fixedly arranged at the middle position of the outer wall thereof; The upper coating assembly includes a glue storage hopper and an adjustment slot and a glue outlet slot on both sides of the top of the glue storage hopper. The top of the adjustment slot is detachably provided with a sealing plate for sealing. A coating roller is rotatably provided inside the glue outlet slot. A small gap for outputting photosensitive glue is provided on both sides of the outer wall of the coating roller and the inner wall of the glue outlet slot. The two sides of the interior of the glue storage hopper are symmetrically provided with partition assemblies. The two partition assemblies are sealingly and slidably connected relative to the glue storage hopper, the inner wall of the sealing plate and the outer wall of the coating roller. The partition assembly comprises a partition and a side plate fixedly arranged on the side wall of the partition. A threaded limiting rod is rotatably arranged on the inner thread of the partition, and a rubber anti-skid pad is rotatably arranged on the bottom end of the threaded limiting rod.

[0014] Furthermore, the coating power mechanism includes a lifting groove provided on the inner wall opposite to the coating frame, gears 1 are rotatably provided on the upper and lower sides of the lifting groove, toothed belts are sleeved on the outer walls of the two gears 1 at the same time, and a slide rail is fixedly provided at the middle position of the inner wall of the lifting groove, and a lifting plate assembly is commonly provided on the outer wall of the toothed belts on the same side of the two sides; The extrusion drive assembly comprises a drive groove symmetrically arranged on the inner wall of the coating frame, and a rack is fixedly arranged on the inner wall of the drive groove.

[0015] Furthermore, the lifting plate assembly includes two vertical plates arranged opposite to each other, a horizontal plate is fixedly arranged on the front and rear sides of the opposite side walls of the two vertical plates, and a sliding sleeve and a connecting plate are fixedly arranged on the side walls of the two vertical plates facing away from each other.

[0016] The present invention also discloses an intelligent coating method for printing screen processing, which is used for an intelligent coating device for printing screen processing. The method comprises the following steps: Step 1: First, clamp the printing screen between the upper limit assembly and the lower limit assembly to keep the printing screen in a vertical state; Step 2: Start the coating power mechanism to drive the coating mechanism to move up and down at a low and uniform speed according to the preset program. The coating mechanism simultaneously coats the front and back of the printing screen with photosensitive adhesive during the upward and downward movement; Step 3: Adjust the output width of the photosensitive adhesive in the coating mechanism according to the design requirements of the coating thickness of the photosensitive adhesive on the local area of ​​the printing screen, and repeat the operation steps of step 2 several times to ensure the local coating thickness and meet the design requirements.

[0017] The present invention provides an intelligent coating device and method for printing screen processing. Compared with the prior art, it has the following beneficial effects: 1. An intelligent coating device and method for printing screen processing, by setting a coating mechanism, including a front coating component and a back coating component in the coating mechanism, can simultaneously coat the front and back of the printing screen with photosensitive adhesive, and the front coating component and the back coating component can not only coat the printing screen with photosensitive adhesive during the upward movement process, but also can coat the printing screen with photosensitive adhesive for a second time during the downward movement process. Compared with the existing printing screen coating device, the coating device can fully utilize the time of the coating mechanism's downward movement process, so that the coating time of a single printing screen is greatly shortened, and the coating efficiency of the printing screen is improved.

[0018] 2. An intelligent coating device and method for processing a printing screen. By setting a scraper assembly, the elevation angle of the scraper execution assembly can be pre-adjusted before the coating mechanism moves upward, so that the position of the upper coating assembly can be made to protrude from the lower coating assembly, so that during the upward movement, only the upper coating assembly is close to the printing screen and participates in the coating of the photosensitive adhesive, thereby avoiding the situation where the lower coating assembly damages the flatness of the already coated photosensitive adhesive, and during the downward movement, the position of the lower coating assembly can be made to slightly protrude from the upper coating assembly, so that only the lower coating assembly can be involved in the coating of the printing screen, thereby avoiding the upper coating assembly from damaging the flatness of the photosensitive adhesive.

[0019] 3. An intelligent coating device and method for printing screen processing, by arranging partition assemblies on both sides of the upper coating assembly and the lower coating assembly, the spacing between the two partition assemblies can be flexibly adjusted according to the width of the locally coated thickened part of the photosensitive adhesive and can be accurately adjusted with reference to the scale line groove, so as to control the width of the glue storage space between the two partition assemblies, so that the distribution width of the photosensitive adhesive discharged from the gap between the coating roller and the glue outlet groove is matched with the distribution width of the photosensitive adhesive in the thickened area, thereby meeting the coating requirements of the printing screen without replacing the upper and lower coating assemblies, thereby saving costs for the preparation of the coating device.

[0020] 4. An intelligent coating device and method for printing screen processing, which can store photosensitive glue coating materials in a relatively closed space by setting a coating material storage component. Compared with the traditional state of directly exposing the photosensitive glue to the scraper bucket, it can avoid the photosensitive glue from being exposed to air and light for a long time to affect its fluidity and exposure, thereby ensuring that subsequent exposure operations can be carried out normally, and improving the reliability of printing screen preparation; by setting a coating material pumping component, it can form a linkage relationship with the extrusion drive component when the coating mechanism moves up and down, and use the No. 1 extrusion component and the No. 2 extrusion component to automatically suck the photosensitive glue in the coating material storage component into the photosensitive glue pumping chamber, and then transport the photosensitive glue in the photosensitive glue pumping chamber to the scraper execution component again, thereby achieving the effect of automatically replenishing the coating material and automatically transporting the coating material, not only ensuring that the scraper execution component has a stable flow of photosensitive glue flowing out during the up and down movement, but also ensuring the uniformity of the photosensitive glue coating, and there is no need to frequently replenish the photosensitive glue during the coating period, so that the work of the printing screen can be carried out continuously, thereby improving the processing efficiency of the printing screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the printing screen assembly state of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure of part A; Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of part B in FIG. Figure 5 It is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 6 It is a schematic diagram of the structure of the present invention in a decomposed state; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of part C in FIG. Figure 8 This is a schematic diagram of the structure of the lifting plate assembly of the present invention; Fig. 9 It is a schematic diagram of the coating mechanism structure of the present invention; Fig.10 This is a schematic diagram of the structure of the front coating assembly of the present invention; Fig.11 This is a schematic diagram of the structure of the front coating assembly of the present invention in the first decomposed state; Fig.12 This is a schematic diagram of the structure of the front coating assembly of the present invention in the second decomposed state; Fig.13 This is a schematic diagram of the structure of the front coating assembly of the present invention in the third decomposed state; Fig.14 For the present invention Fig.13 The enlarged structural diagram of part E in FIG. Fig.15 This is a schematic diagram of the front view structure of the front coating assembly of the present invention; Fig.16 This is a schematic diagram of the structure of the scraper assembly of the present invention; Fig.17 This is a schematic diagram of the structure of the scraping execution assembly of the present invention; Fig.18 This is a schematic diagram of the structure of the scraper actuator assembly in the disassembled state of the present invention; Fig.19 For the present invention Fig.18 The enlarged structural diagram of part F in FIG. Fig. 20 It is a schematic diagram of the structure of the partition assembly of the present invention.

[0022] In the figure: 1. coating rack; 11. lifting slot; 12. gear 1; 13. toothed belt; 14. slide rail; 15. lifting plate assembly; 151. vertical plate; 152. horizontal plate; 153. sliding sleeve; 154. connecting plate; 16. driving slot; 17. rack; 2. intelligent control panel; 3. upper limit assembly; 4. lower limit assembly; 5. coating mechanism; 51. front coating assembly; 511. mounting seat; 512. sensor Glue storage box; 513, scraper assembly; 5131, bearing seat; 5132, slider; 5133, No. 1 cylinder; 5134, rotating seat; 5135, glue scraping execution assembly; f1, mounting frame; f2, upper coating assembly; f21, glue storage hopper; f22, adjustment slot; f23, glue outlet slot; f24, sealing plate; f25, coating roller; f26, partition assembly; f261, partition; f262, Side plate; f263, threaded limit rod; f27, scale line groove; f3, lower coating assembly; f4, upper glue inlet hose; f5, lower glue inlet hose; 5136, No. 2 cylinder; 514, No. 1 photosensitive glue output unit; a1, one-way valve one; a2, glue delivery hose one; 515, No. 2 photosensitive glue output unit; b1, one-way valve two; b2, glue delivery hose two; 516, base; 517, through slot; 518, photosensitive glue pumping chamber; 519, extrusion assembly No. 1; 5191, push plate; 5192, screw sleeve; 5193, screw; 5194, gear two; 5110, extrusion assembly No. 2; 5111, photosensitive adhesive output unit No. 3; c1, one-way valve three; c2, glue delivery hose three; 5112, pressurized supply unit No. 1; 5113, pressurized supply unit No. 2; d1, one-way valve four; d2, glue delivery hose four; 52, back coating assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides three technical solutions: an intelligent coating device for printing screen processing, specifically including the following embodiments: like Figure 1-Figure 8 The first embodiment is shown: an intelligent coating device for printing screen processing, including a coating frame 1 and an intelligent control panel 2 arranged on the front of the coating frame 1, and also including: 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; 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; 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; 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.

[0025] 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; 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.

[0026] like Figure 9-Figure 16A second embodiment is shown: the coating mechanism 5 includes a front coating component 51 and a back coating component 52 symmetrically arranged on both sides of the lower limit component 4, the front coating component 51 and the back coating component 52 have the same structure, and are respectively used to simultaneously coat the photosensitive adhesive on the front and back of the printing screen, the front coating component 51 includes a mounting seat 511 and a coating material storage component arranged at the bottom of the mounting seat 511 and a coating material pumping component arranged at the top of the mounting seat 511, and a scraper component 513 for uniformly coating the photosensitive adhesive on the printing screen is also arranged on one side of the coating material pumping component, the coating material storage component is used to store the configured photosensitive adhesive, the coating material pumping component sucks the photosensitive adhesive out of the coating material storage component at a uniform speed and then coats it on the printing screen through the scraper component 513.

[0027] The coating material storage assembly includes a photosensitive glue storage box 512 fixedly arranged at the bottom of the mounting seat 511, and a No. 1 photosensitive glue output unit 514 for conveying photosensitive glue to the middle position of the coating material pumping assembly is arranged on the front of the photosensitive glue storage box 512, and a No. 2 photosensitive glue output unit 515 is arranged at both ends of the photosensitive glue storage box 512. The two No. 2 photosensitive glue output units 515 are respectively used to convey photosensitive glue to the two end areas of the coating material pumping assembly, and the No. 1 photosensitive glue output unit 514 includes a one-way valve a1 fixedly arranged on the outer wall of the photosensitive glue storage box 512 and connected to the interior of the photosensitive glue storage box 512, and a glue delivery pipe a2 connected to the coating material pumping assembly is fixedly arranged on the output end of the one-way valve a1, and the glue delivery pipe a2 is connected to the middle position of the No. 1 supply cavity.

[0028] The No. 2 photosensitive glue output unit 515 includes a one-way valve No. 2 b1 fixedly set at the end of the photosensitive glue storage box 512 and connected to the inside of the photosensitive glue storage box 512. The output end of the one-way valve No. 2 b1 is fixedly provided with a glue delivery pipe No. 2 b2 connected to the coating raw material pumping assembly. The two glue delivery pipes No. 2 b2 are respectively connected to the No. 2 supply chamber and the No. 3 supply chamber at one end away from the No. 1 supply chamber. The volume of the No. 2 supply chamber and the No. 3 supply chamber is the same, and in the initial state where the coating mechanism 5 is located at the bottom, the sum of the volumes of the No. 2 supply chamber and the No. 3 supply chamber is equal to the volume of the No. 1 supply chamber. When the No. 1 extrusion assembly 519 and the No. 2 extrusion assembly 5110 move, the volumes of the No. 1 supply chamber, the No. 2 supply chamber and the No. 3 supply chamber are in a dynamically changing state. A feeding port is opened on the outer wall of the photosensitive glue storage box 512 for replenishing photosensitive glue therein and at the same time maintaining the connection between the air inside and outside the photosensitive glue storage box 512.

[0029] The coating material pumping assembly includes a base 516 fixedly arranged on the top of the mounting seat 511, and a through groove 517 and a photosensitive glue pumping chamber 518 are respectively opened below and above the outer wall of the base 516 away from the lower limit assembly 4, and a No. 1 extrusion assembly 519 and a No. 2 extrusion assembly 5110 for pushing out the internal photosensitive glue are symmetrically arranged on both sides of the interior of the photosensitive glue pumping chamber 518, and the space between the No. 1 extrusion assembly 519 and the No. 2 extrusion assembly 5110 forms a No. 1 supply chamber, and the spaces on both sides of the No. 1 supply chamber form a No. 2 supply chamber and a No. 3 supply chamber, respectively. A No. 1 pressurized supply unit 5112 and a No. 2 pressurized supply unit 5113 connected to the No. 2 supply chamber and the No. 3 supply chamber are respectively arranged on both sides of the outer wall of the base 516, and a No. 3 photosensitive glue output unit 5111 connected to the No. 1 supply chamber is also arranged at the top middle position of the base 516.

[0030] When the No. 1 extrusion assembly 519 and the No. 2 extrusion assembly 5110 operate toward each other, the No. 3 photosensitive glue output unit 5111 is used to extrude the photosensitive glue located in the No. 1 supply chamber into the middle area of ​​the upper coating assembly f2, and at the same time, the two No. 2 photosensitive glue output units 515 are used to draw the photosensitive glue in the photosensitive glue storage box 512 into the No. 2 supply chamber and the No. 3 supply chamber respectively. When the two operate away from each other, the No. 1 photosensitive glue output unit 514 is used to draw the photosensitive glue in the photosensitive glue storage box 512 into the No. 1 supply chamber, and at the same time, the photosensitive glue in the No. 2 supply chamber and the No. 3 supply chamber is squeezed out into the middle area of ​​the lower coating assembly f3.

[0031] The third photosensitive adhesive output unit 5111 includes a one-way valve three c1 fixedly arranged at the top center of the base 516, and a glue delivery pipe three c2 for delivering the photosensitive adhesive to the scraper assembly 513 is also fixedly arranged at the output end of the one-way valve three c1; The structure of the No. 1 pressurized supply unit 5112 and the No. 2 pressurized supply unit 5113 is the same. The No. 1 pressurized supply unit 5112 includes a one-way valve four d1 connected to the No. 2 supply chamber. The one end of the one-way valve four d1 away from the base 516 is fixedly provided with a glue delivery pipe four d2 for conveying the photosensitive glue to the scraper assembly 513. The glue delivery pipe four d2 in the No. 1 pressurized supply unit 5112 and the No. 2 pressurized supply unit 5113 are respectively connected to the two lower glue inlet pipes f5.

[0032] The first extrusion assembly 519 has the same structure as the second extrusion assembly 5110. The first extrusion assembly 519 includes a push plate 5191 that is sealed and slidably arranged in the photosensitive adhesive pumping chamber 518. A screw sleeve 5192 is fixedly arranged on the outer wall of the push plate 5191 away from the second extrusion assembly 5110. A screw 5193 is connected to the inner thread of the screw sleeve 5192. One end of the screw 5193 rotates through the base 516 and is fixedly provided with a gear 2 5194. The push plate The outer wall of 5191 is fixed with sealing strips all around to ensure a sealed sliding connection with the inner wall of the photosensitive adhesive pumping chamber 518. The screw rod 5193 and the base 516 are rotatably connected through bearings; the two ends of the mounting seat 511 and the two vertical plates 151 are connected by bolts, the gear 2 5194 and the rack 17 are meshed and connected with each other, and the sliding sleeve 153 is slidably mounted on the outer wall of the slide rail 14, and the connecting plate 154 and one side of the outer wall of the toothed belt 13 are fixedly connected by bolts.

[0033] The scraper assembly 513 includes a bearing seat 5131 and a slider 5132 fixedly arranged on the side wall of the bearing seat 5131. A cylinder 5133 is also arranged on the side of the slider 5132 away from the bearing seat 5131. The output shaft of the 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 bearing seat 5131 away from the slider 5132. A scraper actuator 5135 is rotatably arranged on the side wall of the rotating seat 5134. No. 2 cylinder 5136 is rotatably arranged on both sides of the relative side walls of the row assembly 5135 and the rotating seat 5134 at the same time. No. 1 cylinder 5133 is fixedly arranged on the outer wall of the base 516. The slider 5132 is slidably arranged inside the through groove 517, and one end of the slider 5132 slides through the base 516 and extends to the outside. The output shaft of No. 1 cylinder 5133 can push the slider 5132 to move within the moving distance along the inner wall of the through groove 517, and the supporting seat 5131 is arranged close to the outer wall of the base 516.

[0034] like Figure 17-Figure 20 A third embodiment is shown: the glue scraping execution component 5135 includes a mounting frame f1 and an upper coating component f2 and a lower coating component f3 which are detachably arranged on the upper and lower sides of the same side wall of the mounting frame f1. The upper coating component f2 and the lower coating component f3 have the same structure. An upper glue inlet pipe f4 connected to the interior of the upper coating component f2 is fixedly arranged at the middle position of the outer wall thereof, and a lower glue inlet pipe f5 connected to the interior of the lower coating component f3 is fixedly arranged at the middle position of the outer wall thereof. The upper coating assembly f2 comprises a glue storage hopper f21 and an adjustment slot f22 and a glue outlet slot f23 provided on both sides of the top of the glue storage hopper f21. A sealing plate f24 for sealing is detachably provided on the top of the adjustment slot f22. A coating roller f25 is rotatably provided inside the glue outlet slot f23. A small gap for outputting photosensitive glue is provided on both sides of the outer wall of the coating roller f25 and the inner wall of the glue outlet slot f23. In addition, a partition assembly f26 is symmetrically provided on both sides of the interior of the glue storage hopper f21. The two partition assemblies f26 are sealingly and slidably connected relative to the glue storage hopper f21, the inner wall of the sealing plate f24 and the outer wall of the coating roller f25. The partition assembly f26 includes a partition f261 and a side plate f262 fixedly arranged on the side wall of the partition f261. The internal thread of the partition f261 is rotatably provided with a threaded limiting rod f263, and the bottom end of the threaded limiting rod f263 is rotatably provided with a rubber anti-skid pad.

[0035] The embodiment of the present invention further provides an intelligent coating method for printing screen processing, which is used for an intelligent coating device for printing screen processing. The method comprises the following steps: Step 1: First, clamp the printing screen between the upper limit assembly 3 and the lower limit assembly 4 to keep the printing screen in a vertical state; The specific process is as follows: clamps are slidably sleeved on both sides of the outer walls of the upper limit assembly 3 and the lower limit assembly 4, and the distance between the two clamps at the same horizontal position is adjusted to be slightly smaller than the width of the printing screen, and at the same time, the height of the upper limit assembly 3 relative to the lower limit assembly 4 and the height of the printing screen are adjusted to match, so that the clamps can just clamp the printing screen; With the help of the intelligent control panel 2, the No. 2 cylinder 5136 is controlled to push the scraper actuator component 5135 to flip downward at a preset angle. After the scraper actuator component 5135 is flipped, the position of the upper coating component f2 protrudes from the lower coating component f3, that is, the upper coating component f2 is in a forward state compared to the lower coating component f3. At this time, the side wall of the glue storage hopper f21 in the upper coating component f2 close to the printing screen and the outer wall of the coating roller f25 away from the glue storage hopper f21 are in the same vertical plane. Then the No. 1 cylinder 5133 pushes the slider 5132 to move a preset distance along the through groove 517 to a position close to the printing screen. At this time, the glue storage hopper f21 and the coating roller f25 in the upper coating component f2 are located at the outermost outer wall and maintain a preset small gap with the printing screen.

[0036] With the help of the intelligent control panel 2, the two servo motors located on both sides of the coating frame 1 are turned on at the same time. The servo motors rotate at a low and uniform speed according to the preset program. The toothed belt 13 drives the lifting plate assembly 15 to move upward while rotating at a low speed. During the upward movement, the gear 2 5194 is driven by the rack 17 at the corresponding position to rotate. The lead screw sleeves 5192 on both sides move toward each other under the drive of the gear 2 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 one-way valve 3 c1, the glue delivery pipe 3 c2, and the upper glue inlet pipe f4. The photosensitive glue is located between the two partition assemblies f26. The photosensitive adhesive flows out through the tiny gap between the coating roller f25 and the adhesive outlet slot f23. This part of the photosensitive adhesive is initially rolled by the coating roller f25 and coated on the printing screen. The adhesive storage hopper f21 continues to move upward along the movement trajectory of the coating roller f25. The photosensitive adhesive is scraped and swept by the adhesive storage hopper f21 and is more evenly distributed on the printing screen. At the same time, in the process of the push plate 5191 moving toward each other, the pressure in the No. 2 supply chamber and the No. 3 supply chamber is gradually reduced, and the negative pressure formed drives the photosensitive adhesive in the photosensitive adhesive storage box 512 into the No. 2 supply chamber and the No. 3 supply chamber respectively through the No. 2 photosensitive adhesive output unit 515 on both sides.

[0037] When the coating mechanism 5 reaches the preset upper limit position at the top of the printing screen, the No. 1 cylinder 5133 pulls the bearing seat 5131 to move along the through slot 517 away from the printing screen and returns to the original position, and then the two No. 2 cylinders 5136 simultaneously pull the scraper actuator 5135 to flip upward by a preset angle, so that the position of the lower coating component f3 is slightly protruding from the upper coating component f2, and then the No. 1 cylinder 5133 pushes the slider 5132 again to move a preset distance in the direction close to the printing screen, so that the coating roller f25, the glue storage hopper f21 and the printing screen in the lower coating component f3 maintain a small preset distance, and then the servo motor drives the coating mechanism 5 to move downward at a uniform speed, and the rack 17 drives the gear 2 5 194 rotates in the opposite direction, and the two pushing plates 5191 at relative positions move away from each other. At this time, the photosensitive glue in the No. 2 supply chamber and the No. 3 supply chamber enters the middle position of the lower coating component f3 through the No. 1 pressurized supply unit 5112, the No. 2 pressurized supply unit 5113, and the two lower glue inlet pipes f5 at the same time. The photosensitive glue flows out again through the tiny gap between the coating roller f25 and the glue outlet groove f23 in the lower coating component 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 No. 1 supply chamber decreases, and the negative pressure formed draws part of the photosensitive glue in the photosensitive glue storage box 512 into the No. 1 supply chamber to prepare for the next coating.

[0038] When thickening coating is required for local areas after overall coating of the printing screen, the sealing plate f24 can be removed and the position of the partition assemblies f26 on both sides can be moved with reference to the scale groove f27. After the position of the partition assembly f26 is determined, the threaded limit rod f263 can be rotated again, and the position of the partition f261 can be locked by utilizing the friction between the threaded limit rod f263 and the inner wall of the glue storage hopper f21. Then, the sealing plate f24 can be used to seal the adjustment groove f22 before coating can be performed 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 thickened part of the photosensitive glue, and the upward movement height of the coating mechanism 5 can be met by reprogramming the servo motor.

[0039] Step 2: Start the coating power mechanism to drive the coating mechanism 5 to move up and down at a low and uniform speed according to the preset program. The coating mechanism 5 simultaneously coats the front and back of the printing screen with photosensitive adhesive during the upward and downward movement. Step 3: adjust the output width of the photosensitive adhesive in the coating mechanism 5 according to the design requirements of the coating thickness of the photosensitive adhesive on the local area of ​​the printing screen, and repeat the operation steps of step 2 several times to ensure that the local coating thickness meets the design requirements.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent coating device for printing screen processing, comprising a coating frame and an intelligent control panel for controlling the operation of the intelligent coating device, characterized in that: Also includes: The coating power mechanism includes two coating power units, which are respectively arranged on opposite inner walls of both sides of the coating frame and are used to provide power for the coating operation of the printing screen; 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; The printing screen clamping assembly includes an upper limit assembly detachably arranged on the inner wall of the coating frame and a lower limit assembly arranged at the bottom of the coating frame, wherein the upper limit assembly and the lower limit assembly can flexibly adjust the clamping point according to the different heights and widths of the printing screen to adapt to printing screens of different sizes; The coating mechanism is arranged above the lower limit assembly. 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 of the printing screen with photosensitive adhesive 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.

2. The intelligent coating device for printing screen processing according to claim 1, characterized in that: The coating mechanism comprises a front coating component and a back coating component symmetrically arranged on both sides of the lower limit component, and the front coating component and the back coating component have the same structure; The front coating assembly includes a mounting seat, a coating material storage assembly arranged at the bottom of the mounting seat, and a coating material pumping assembly arranged at the top of the mounting seat, and a scraper assembly for evenly coating the photosensitive adhesive on the printing screen is also arranged on one side of the coating material pumping assembly. The coating material storage assembly is used to store the configured photosensitive adhesive, and the coating material pumping assembly sucks the photosensitive adhesive out of the coating material storage assembly at a uniform speed and then coats it on the printing screen through the scraper assembly.

3. The intelligent coating device for printing screen processing according to claim 2, characterized in that: The coating material storage assembly includes a photosensitive glue storage box fixedly arranged at the bottom of the mounting seat, a No. 1 photosensitive glue output unit for delivering photosensitive glue to the middle position of the coating material pumping assembly is arranged on the front of the photosensitive glue storage box, and No. 2 photosensitive glue output units are arranged at both ends of the photosensitive glue storage box, and the two No. 2 photosensitive glue output units are respectively used to deliver photosensitive glue to the two end areas of the coating material pumping assembly; The first photosensitive glue output unit includes a one-way valve fixedly arranged on the outer wall of the photosensitive glue storage box and connected to the inside of the photosensitive glue storage box, and a glue delivery pipe connected to the coating raw material pumping assembly is fixedly arranged on the output end of the one-way valve; The No. 2 photosensitive glue output unit includes a second one-way valve fixedly arranged at the end of the photosensitive glue storage box and connected to the inside of the photosensitive glue storage box. The output end of the second one-way valve is fixedly provided with a second glue delivery pipe connected to the coating raw material pumping assembly.

4. The intelligent coating device for printing screen processing according to claim 3, characterized in that: The coating material pumping assembly includes a base fixedly arranged on the top of the mounting seat, and a through groove and a photosensitive glue pumping chamber are respectively opened below and above the outer wall of the base away from the lower limit assembly, and a No. 1 extrusion assembly and a No. 2 extrusion assembly for pushing out the internal photosensitive glue are symmetrically arranged on both sides of the interior of the photosensitive glue pumping chamber, and the space between the No. 1 extrusion assembly and the No. 2 extrusion assembly forms a No. 1 supply chamber, and the spaces on both sides of the No. 1 supply chamber form a No. 2 supply chamber and a No. 3 supply chamber, respectively. A No. 1 pressurized supply unit and a No. 2 pressurized supply unit connected to the No. 2 supply chamber and the No. 3 supply chamber are respectively arranged on both sides of the outer wall of the base, and a No. 3 photosensitive glue output unit connected to the No. 1 supply chamber is also arranged at the top middle position of the base; The third photosensitive adhesive output unit includes a one-way valve three fixedly arranged at the center of the top of the base, and a glue delivery pipe three for delivering the photosensitive adhesive to the scraper assembly is also fixedly arranged at the output end of the one-way valve three; The structure of the No. 1 pressurized supply unit is the same as that of the No. 2 pressurized supply unit. The No. 1 pressurized supply unit includes a one-way valve four connected to the No. 2 supply chamber. The one end of the one-way valve four away from the base is fixedly provided with a glue delivery pipe four for delivering the photosensitive glue to the scraper assembly.

5. The intelligent coating device for printing screen processing according to claim 4, characterized in that: The structures of the No. 1 extrusion assembly and the No. 2 extrusion assembly are the same. The No. 1 extrusion assembly includes a push plate that is sealingly and slidably arranged in the photosensitive adhesive pumping chamber. A screw sleeve is fixedly arranged on the outer wall of the push plate away from the No. 2 extrusion assembly. A screw is connected to the internal thread of the screw sleeve, and one end of the screw rotates through the base and is fixedly provided with gear 2.

6. The intelligent coating device for printing screen processing according to claim 2, characterized in that: The scraper assembly includes a bearing seat and a slider fixedly arranged on the side wall of the bearing seat, a No. 1 cylinder is also arranged on the side of the slider away from the bearing seat, the output shaft of the No. 1 cylinder is fixedly connected to the side wall of the slider, a rotating seat is fixedly arranged on the side wall of the bearing seat away from the slider, a scraper actuator assembly is rotatably arranged on the side wall of the rotating seat, and a No. 2 cylinder is rotatably arranged on both sides of the scraper actuator assembly and the opposite side walls of the rotating seat.

7. The intelligent coating device for printing screen processing according to claim 6, characterized in that: The scraping glue 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, an upper glue inlet pipe connected to the interior of the upper coating assembly is fixedly arranged at the middle position of the outer wall of the upper coating assembly, and a lower glue inlet pipe connected to the interior of the lower coating assembly is fixedly arranged at the middle position of the outer wall of the lower coating assembly; The upper coating assembly includes a glue storage hopper and an adjustment slot and a glue outlet slot on both sides of the top of the glue storage hopper. The top of the adjustment slot is detachably provided with a sealing plate for sealing. A coating roller is rotatably provided inside the glue outlet slot. A small gap for outputting photosensitive glue is provided on both sides of the outer wall of the coating roller and the inner wall of the glue outlet slot. The two sides of the interior of the glue storage hopper are symmetrically provided with partition assemblies. The two partition assemblies are sealingly and slidably connected relative to the glue storage hopper, the inner wall of the sealing plate and the outer wall of the coating roller. The partition assembly comprises a partition and a side plate fixedly arranged on the side wall of the partition. A threaded limiting rod is rotatably arranged on the inner thread of the partition, and a rubber anti-skid pad is rotatably arranged on the bottom end of the threaded limiting rod.

8. The intelligent coating device for printing screen processing according to claim 1, characterized in that: The coating power mechanism comprises a lifting groove provided on the inner wall opposite to the coating frame, gears 1 are rotatably provided on the upper and lower sides of the lifting groove, toothed belts are sleeved on the outer walls of the two gears 1 at the same time, and a slide rail is fixedly provided at the middle position of the inner wall of the lifting groove, and a lifting plate assembly is commonly provided on the outer wall of the toothed belts on the same side of the two sides; The extrusion drive assembly comprises a drive groove symmetrically arranged on the inner wall of the coating frame, and a rack is fixedly arranged on the inner wall of the drive groove.

9. The intelligent coating device for printing screen processing according to claim 8, characterized in that: The lifting plate assembly comprises two vertical plates arranged opposite to each other, a horizontal plate is fixedly arranged on the front and rear sides of the opposite side walls of the two vertical plates, and a sliding sleeve and a connecting plate are fixedly arranged on the side walls of the two vertical plates facing away from each other.

10. An intelligent coating method for printing screen processing, characterized in that: Used in the intelligent coating device for printing screen processing according to any one of claims 1 to 9, the method comprises the following steps: Step 1: First, clamp the printing screen between the upper limit assembly and the lower limit assembly to keep the printing screen in a vertical state; Step 2: Start the coating power mechanism to drive the coating mechanism to move up and down at a low and uniform speed according to the preset program. The coating mechanism simultaneously coats the front and back of the printing screen with photosensitive adhesive during the upward and downward movement; Step 3: Adjust the output width of the photosensitive adhesive in the coating mechanism according to the design requirements of the coating thickness of the photosensitive adhesive on the local area of ​​the printing screen, and repeat the operation steps of step 2 several times to ensure the local coating thickness and meet the design requirements.

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