Automatic raw ceramic chip printing machine

Abstract

The utility model relates to the technical field of raw ceramic chip printing, and provides an automatic raw ceramic chip printing machine which comprises a raw ceramic chip feeding device, a screen printing carrying table moving device and a raw ceramic chip discharging device. The raw ceramic chip feeding device comprises a first rack, a material frame conveying and positioning mechanism and a lifting, overturning and grabbing mechanism. The material frame conveying and positioning mechanism comprises a material frame and a servo conveying assembly. The lifting, overturning and grabbing mechanism comprises a first supporting base, a lifting driving assembly, a first grabbing assembly, a second supporting base, an overturning driving assembly, a second grabbing assembly, a third supporting base, a carrying driving assembly and a third grabbing assembly. The screen printing carrying table moving device comprises a second rack, an alignment lifting carrying table, a screen printing guide rail and a screen printing mechanism. The utility model has the advantages that the lifting, overturning and grabbing mechanism automatically takes away raw ceramic chips from the material frame and overturns the raw ceramic chips in a vertical state into the raw ceramic chips in a horizontal state, and the silk-screen printing mechanism prints patterns on the raw ceramic chips and automatically takes away printed matters of the raw ceramic chips, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of green porcelain sheet printing, in particular to an automatic green porcelain sheet printing machine. Background Art

[0002] HTCC ceramic heating sheet is a high temperature co-fired ceramic heating sheet. It is made of high melting point metal heating resistor paste such as tungsten, molybdenum, molybdenum, manganese, etc. It is printed on 92-96% alumina cast ceramic green body, that is, green ceramic sheet, and then 4-8% sintering aid is used and then multi-layered. It is co-fired at a high temperature of 1500-1600℃. Therefore, it has the advantages of corrosion resistance, high temperature resistance, long service life, high efficiency and energy saving, uniform temperature, good thermal conductivity, and fast thermal compensation speed.

[0003] At present, a screen printing mechanism is used to print circuit patterns on raw ceramic sheets. The screen of the screen printing mechanism is pre-set with patterns. The blank area in the pattern is used for metallization of the raw ceramic sheets. The blank area is for metal slurry to pass through the screen and print on the raw ceramic sheets. The staff stands at the loading position and manually places a piece of raw ceramic sheet horizontally on the stage. After the CCD is aligned, the stage moves to the bottom of the screen, and then the scraper assembly scrapes the metal slurry on the screen. The metal slurry is printed on the raw ceramic sheet to obtain a raw ceramic sheet print. Finally, the stage moves to the unloading position, and the staff manually takes away the raw ceramic sheet print from the stage.

[0004] When printing circuit patterns on raw ceramic sheets in large quantities, workers manually place the raw ceramic sheets one by one and manually take away the printed products of the raw ceramic sheets one by one, which is a very cumbersome operation and has low production efficiency.

[0005] Therefore, how to automatically grab the green ceramic sheet and automatically take away the green ceramic sheet prints after the green ceramic sheet prints the circuit pattern to improve the production efficiency is a technical problem to be solved in this field. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an automatic green ceramic sheet printing machine, which can automatically grab green ceramic sheets, automatically take away the green ceramic sheet prints after printing circuit patterns on the green ceramic sheets, and improve production efficiency.

[0007] The utility model is implemented as follows: a green ceramic sheet automatic printing machine, comprising:

[0008] Green ceramic sheet loading device, screen printing stage moving device and green ceramic sheet unloading device;

[0009] The raw ceramic sheet loading device has the same structure as the raw ceramic sheet unloading device, and is located at the loading port and unloading port of the screen printing stage moving device respectively;

[0010] The raw ceramic sheet feeding device comprises a first frame, a material frame transport positioning mechanism and a lifting, flipping and grabbing mechanism, the material frame transport positioning mechanism comprises a material frame and a servo transport assembly, the top plate of the first frame is provided with a pick-up and drop-out opening, the servo transport assembly is mounted on the bottom plate of the first frame, the material frame is placed on the servo transport assembly, the material frame can pass under the pick-up and drop-out opening, the material frame has a plurality of partition grooves, the partition grooves are used to place the raw ceramic sheets in a vertical state;

[0011] The lifting, flipping and grabbing mechanism comprises a first support seat, a lifting drive assembly, a first grabbing assembly, a second support seat, a flipping drive assembly, a second grabbing assembly, a third support seat, a transport drive assembly and a third grabbing assembly, wherein the first support seat is fixedly arranged on the top plate of the first frame, the first grabbing assembly is connected to the first support seat through the lifting drive assembly, the second support seat is fixedly arranged on the top plate of the first frame, the second grabbing assembly is connected to the second support seat through the flipping drive assembly, the third support seat is fixedly arranged on the top plate of the first frame, and the third grabbing assembly is connected to the third support seat through the transport drive assembly;

[0012] The screen printing stage moving device comprises a second frame, an alignment lifting platform, a screen printing guide rail and a screen printing mechanism, wherein the screen printing guide rail is fixedly arranged on the second frame, the alignment lifting platform is slidably connected to the screen printing guide rail, and the screen printing mechanism is installed above the screen printing guide rail;

[0013] The first grabbing assembly can grab the vertical green ceramic sheet from the material frame through the pick-up and release opening, and then lift it to the first transfer position;

[0014] The second grabbing assembly can receive the vertical green ceramic sheet from the first transfer position, and then flip the vertical green ceramic sheet into a horizontal green ceramic sheet, so that the horizontal green ceramic sheet is located at the second transfer position;

[0015] The third grabbing assembly can receive the horizontal green ceramic sheet from the second transfer position and then transport it to the third transfer position;

[0016] The alignment lifting platform can receive the horizontal raw ceramic sheet from the third transfer position and then transport it to the screen printing mechanism, and can also transport the printed raw ceramic sheet to the raw ceramic sheet unloading device.

[0017] Furthermore, the servo transport assembly includes a transport material platform, a servo motor, a linear guide, a first clamping plate, a second clamping plate, a first clamping driver and a second clamping driver. The linear guide is fixedly arranged below the pick-up and release port. The transport material platform is slidably connected to the linear guide. The servo motor controls the movement state of the transport material platform. The first clamping plate is connected to the front side of the transport material platform through the first clamping driver. The second clamping plate is connected to the rear side of the transport material platform through the second clamping driver. The material frame is placed between the first clamping plate and the second clamping plate.

[0018] Furthermore, the material frame transport and positioning mechanism also includes a full material frame transport-in component and an empty material frame transport-out component;

[0019] The full material frame transporting component is located at the entrance of the linear guide rail, and the empty material frame transporting component is located at the exit of the linear guide rail;

[0020] The servo transport assembly further includes a first transport belt, a material frame receiving sensor, and a material frame sending sensor. The first transport belt is installed between the first clamping plate and the second clamping plate. The material frame receiving sensor is installed at the entrance of the linear guide rail. The material frame sending sensor is installed at the exit of the linear guide rail. The left side of the transport platform is the material frame entrance and exit, and the right side is a baffle.

[0021] The full material frame transporting component comprises a second conveyor belt and a full material frame in place sensor, and the full material frame in place sensor is installed at the exit of the second conveyor belt;

[0022] The empty material frame carrying-out component comprises a third conveyor belt and an empty material frame in-place sensor, and the empty material frame in-place sensor is installed at the exit of the third conveyor belt.

[0023] Furthermore, the material frame transport and positioning mechanism further comprises a cylinder material lifting assembly, which is mounted on the bottom plate of the first frame and is also located directly below the loading and unloading port;

[0024] A material lifting opening and a support plate are provided at the bottom of the material frame, and the cylinder material lifting assembly can pass through the material lifting opening and lift the vertical raw ceramic sheet.

[0025] Further, the lifting drive assembly is a telescopic cylinder, the first grabbing assembly includes a first pneumatic clamp and a lifting arm, two first pneumatic clamps are installed on the lifting arm, and the lifting arm is connected to the first support seat through the telescopic cylinder;

[0026] The flip driving assembly is a corner motor, the second grabbing assembly includes a second pneumatic clamp and a flip arm, the second pneumatic clamp is installed at one end of the flip arm, the other end of the flip arm is connected to the second support seat through the corner motor, and the two flip arms are respectively located on both sides of the first support seat;

[0027] The transport drive assembly includes an up-and-down moving cylinder, a horizontal moving cylinder, a slider and a transport arm. The slider is connected to the third support seat via the horizontal moving cylinder. The transport arm is connected to the slider via the up-and-down moving cylinder. The third grabbing assembly is a suction cup, which is mounted on the lower side of the transport arm.

[0028] Furthermore, the screen printing stage moving device further comprises a CCD positioning mechanism and a plasma blowing cleaning product mechanism, the CCD positioning mechanism is connected to the alignment lifting stage via a data line, the CCD positioning mechanism is fixedly arranged on the second frame and is also located at the third transfer position;

[0029] The plasma blowing cleaning product mechanism is fixedly arranged on the second frame and is also located between the CCD positioning mechanism and the screen printing mechanism.

[0030] Furthermore, the screen printing mechanism includes a column, a printing base, a screen, a scraper assembly, a lifting cylinder and a connecting plate. The printing base is connected to the second frame through the column, the screen is fixed on the printing base, the scraper assembly is connected to the connecting plate through the lifting cylinder, and the connecting plate is connected to the printing base in a reciprocating sliding manner.

[0031] Furthermore, it also includes: a screen cleaning device, including a third frame, a cleaning drive mechanism and a film material retracting and releasing mechanism, wherein the third frame is located in front of the second frame;

[0032] The cleaning drive mechanism includes a micro-mucosal membrane, a cleaning seat, a cleaning telescopic assembly, a first cleaning lifting assembly, a second cleaning lifting assembly, a first roller and a second roller, the cleaning seat is connected to the third frame through the cleaning telescopic assembly, the first roller is connected to the cleaning seat through the first cleaning lifting assembly, the second roller is connected to the cleaning seat through the second cleaning lifting assembly, and the first roller and the second roller are arranged front and back;

[0033] The film material retracting mechanism includes a film material discharging shaft and a film material winding shaft, and the film material discharging shaft and the film material winding shaft are both rotatably arranged on the third frame, and the micro-viscosity film is wound around the film material discharging shaft, the first roller, the second roller and the film material winding shaft.

[0034] Compared with the background technology, the advantages of the utility model are:

[0035] 1. The staff first puts a plurality of raw ceramic sheets to be printed in a vertical state on a material frame, and the raw ceramic sheets in the material frame are moved through the pick-up and release port one by one through the material frame transport positioning mechanism of the raw ceramic sheet feeding device, and the lifting and flipping grasping mechanism automatically takes out the raw ceramic sheets from the material frame one by one, flips the raw ceramic sheets in the vertical state into raw ceramic sheets in the horizontal state, and then transports them to the alignment lifting platform placed on the screen printing platform moving device, and the screen printing mechanism prints circuit patterns on the raw ceramic sheets to obtain raw ceramic sheet prints, and the raw ceramic sheet unloading device automatically takes out the raw ceramic sheet prints from the alignment lifting platform, flips the raw ceramic sheet prints in the horizontal state into raw ceramic sheet prints in the vertical state, and finally puts them in another material frame, and the staff takes out the other material frame after the other material frame is filled, thereby improving production efficiency.

[0036] 2. In the raw ceramic sheet loading device, the full frame transport component orderly transports the frame filled with raw ceramic sheets to the transport platform of the servo transport component. When the transport platform moves step by step through the pick-up and release port, the stepping distance of the transport platform is the distance between two raw ceramic sheets in the frame. After all the raw ceramic sheets in the frame are taken away, the transport platform orderly transports the empty frame to the empty frame transport component, that is, the full frame enters the raw ceramic sheet loading device, and the empty frame comes out of the raw ceramic sheet loading device, which is convenient for the staff to add raw ceramic sheets to the empty frame before putting it into production. The operation mode of the raw ceramic sheet unloading device is opposite to that of the raw ceramic sheet loading device, that is, the empty frame enters the raw ceramic sheet unloading device, and the full frame comes out of the raw ceramic sheet unloading device.

[0037] 3. After the alignment lifting platform transports the raw ceramic sheet prints away from the screen printing mechanism, the micro-adhesive film of the screen cleaning device cleans the screen to prevent the metal slurry from remaining and accumulating on the lower surface of the screen, causing blurry circuit graphics printing next time. The utility model is provided with the function of cleaning the screen to improve the quality of the raw ceramic sheet prints. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0039] Figure 1 The utility model is a schematic three-dimensional diagram of the structure of the automatic printing machine for green ceramic sheets.

[0040] Figure 2 The utility model is a schematic plan view of the structure of the automatic printing machine for green ceramic sheets.

[0041] Figure 3 yes Figure 2 Left view of .

[0042] Figure 4 yes Figure 2 Bottom view of .

[0043] Figure 5It is a structural schematic diagram of the material frame transport positioning mechanism of the utility model.

[0044] Figure 6 yes Figure 5 A partial enlarged view of middle A.

[0045] Figure 7 It is a schematic diagram of the positions of the servo transport component, the full material frame transport-in component, and the empty material frame transport-out component in the utility model.

[0046] Figure 8 It is a structural schematic diagram of a material frame in the utility model.

[0047] Fig. 9 It is a schematic diagram of the positions of the lifting drive assembly, the first grabbing assembly, the flipping drive assembly and the second grabbing assembly in the utility model.

[0048] Fig.10 A schematic diagram showing that the first grabbing assembly in the utility model grabs the green ceramic sheet from the material frame, and the second grabbing assembly is located at the second transfer position.

[0049] Fig.11 It is a schematic diagram of the first grabbing assembly in the utility model lifting the green ceramic sheet to the first transfer position and the second grabbing assembly moving toward the first transfer position.

[0050] Fig.12 It is a schematic diagram of the third grabbing component in the utility model moving from the second handover position to the third handover position.

[0051] Fig.13 It is a structural schematic diagram of the screen printing mechanism in the utility model.

[0052] Fig.14 It is a schematic diagram of the positions of the alignment lifting platform and the screen printing guide rail in the utility model.

[0053] Fig.15 It is a structural schematic diagram of the screen cleaning device of the utility model.

[0054] Fig.16 It is a schematic diagram of the positions of the micro mucous membrane and the screen in the utility model.

[0055] Fig.17 It is a structural schematic diagram of the CCD positioning mechanism in the utility model.

[0056] Fig.18 It is a structural schematic diagram of the plasma blowing cleaning product mechanism in the utility model.

[0057] Reference numerals: raw ceramic sheet loading device 1; first frame 11; pick-up and release port 111; material frame transport positioning mechanism 12; material frame 121; partition groove 1211; top material port 1212; support plate 1213; servo transport assembly 122; transport material platform 1221; servo motor 1222; linear guide 1223; first clamping plate 1224; second clamping plate 1225; first clamping driver 1226; second clamping driver 1227; first conveyor belt 1228; material frame receiving sensor 1229; material frame sending sensor 1220; full material frame transport assembly 123; second conveyor belt 1231; full material frame in-place sensor 1232; empty material frame transport assembly 1233; second conveyor belt 1234; full material frame in-place sensor 1235; empty material frame transport assembly 1236; second conveyor belt 1237; first clamping driver 1238; second clamping driver 1239; first conveyor belt 1240; first clamping driver 1241; second clamping driver 1242; first conveyor belt 1243; first clamping driver 1244; second clamping driver 1245; first clamping driver 1246; second clamping driver 1247; first conveyor belt 1248; material frame receiving sensor 1249; material frame sending sensor 1240; full material frame transport assembly 1241; second conveyor belt 1243; full material frame in-place sensor 1244; empty material frame transport assembly 1245; second conveyor belt 1246; first clamping driver 1247; first conveyor belt 1248; first clamping driver 1246; second clamping driver 1247; first conveyor belt 1248; first clamping driver 1248 Outgoing assembly 124; third conveyor belt 1241; empty material frame in place sensor 1242; cylinder material lifting assembly 125; lifting plate 1251; lifting, flipping and grabbing mechanism 13; first support seat 131; lifting drive assembly 132; first grabbing assembly 133; first pneumatic clamp 1331; lifting arm 1332; second support seat 134; flipping drive assembly 135; second grabbing assembly 136; second pneumatic clamp 1361; flipping arm 1362; third support seat 137; transport drive assembly 138; up and down moving cylinder 1381; horizontal moving cylinder 1382; slider 1383; transport arm 1384; third grabbing assembly 139;

[0058] Screen printing stage moving device 2; second frame 21; alignment lifting stage 22; screen printing guide rail 23; screen printing mechanism 24; column 241; printing seat 242; screen 243; scraper assembly 244; lifting cylinder 245; connecting plate 246; CCD positioning mechanism 25; plasma blowing cleaning product mechanism 26; raw ceramic sheet unloading device 3; screen cleaning device 4; third frame 41; cleaning drive mechanism 42; micro-mucosal membrane 421; cleaning seat 422; cleaning telescopic group Part 423; first cleaning lifting assembly 424; second cleaning lifting assembly 425; first roller 426; second roller 427; film material taking-up and releasing mechanism 43; film material releasing shaft 431; film material winding shaft 432; film material deviation corrector 433; seasoning mechanism 434; first guide shaft 4341; second guide shaft 4342; seasoning shaft 4343; seasoning lifting assembly 4344; pressing mechanism 435; pressing block 4351; pressing lifting assembly 4352; raw porcelain sheet 5. DETAILED DESCRIPTION

[0059] The embodiment of the utility model provides an automatic printing machine for raw ceramic sheets, which overcomes the shortcomings of the background technology in which the staff manually place the raw ceramic sheets one by one and manually take away the raw ceramic sheet prints one by one, which is cumbersome to operate, and realizes that the machine automatically grabs the raw ceramic sheets, and automatically takes away the raw ceramic sheet prints after the raw ceramic sheets print circuit graphics, thereby improving production efficiency, being suitable for printing raw ceramic sheets in large quantities, and having the technical effect of improving the quality of raw ceramic sheet prints.

[0060] The overall idea of ​​the technical solution of the embodiment of the utility model is as follows:

[0061] The staff first places a plurality of raw ceramic sheets to be printed in a vertical state in the dividing slot of the material frame. The raw ceramic sheets are placed vertically in the material frame so that the staff can look down and check whether the raw ceramic sheets have been printed and count the number of raw ceramic sheets. In the raw ceramic sheet feeding device, the raw ceramic sheets in the material frame move through the pick-up and release port one by one. When the material frame stops at the pick-up and release port, the lifting and flipping grabbing mechanism automatically takes a raw ceramic sheet from the material frame, and the material frame moves step by step so that the next raw ceramic sheet is aligned with the pick-up and release port of the raw ceramic sheet feeding device.

[0062] The lifting, flipping and grabbing mechanism flips the vertical raw ceramic sheet into a horizontal raw ceramic sheet, and then transports and places it on the positioning lifting platform. The screen printing mechanism prints circuit graphics on the raw ceramic sheet; the raw ceramic sheet unloading device then automatically takes the raw ceramic sheet prints from the positioning lifting platform, flips the horizontal raw ceramic sheet prints into vertical raw ceramic sheet prints, and finally places the vertical raw ceramic sheet prints in the partition slot of another material frame of the raw ceramic sheet unloading device.

[0063] After a raw tile printing port is placed in another material frame of the raw tile feeding device, the other material frame moves step by step to align the next empty dividing groove with the taking and placing port of the raw tile feeding device.

[0064] According to the number of raw porcelain pieces placed in the material frame, the total number of stepping movements of a single material frame under the loading and unloading port is set in the control system. The control system records the number of stepping movements of a single material frame. When the total number of steps is completed, it means that all the raw porcelain pieces in the material frame have been taken away.

[0065] When the screen printing mechanism prints the circuit pattern on the raw ceramic sheet, the screen cleaning device is in a standby state. After the alignment lifting platform transports the raw ceramic sheet print product away, the screen cleaning device wipes and cleans the screen.

[0066] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0067] See also Figures 1 to 18 , a preferred embodiment of the utility model.

[0068] A green ceramic sheet automatic printing machine, comprising:

[0069] A raw ceramic sheet loading device 1, a screen printing stage moving device 2 and a raw ceramic sheet unloading device 3;

[0070] The raw ceramic sheet loading device 1 has the same structure as the raw ceramic sheet unloading device 3, and is located at the loading port and unloading port of the screen printing stage moving device 2 respectively;

[0071] The raw ceramic sheet feeding device 1 comprises a first frame 11, a material frame transport positioning mechanism 12 and a lifting, flipping and grabbing mechanism 13. The material frame transport positioning mechanism 12 comprises a material frame 121 and a servo transport assembly 122. The top plate of the first frame 11 is provided with a pick-up and drop-out opening 111. The servo transport assembly 122 is installed on the bottom plate of the first frame 11. The material frame 121 is placed on the servo transport assembly 122. The material frame 121 can pass under the pick-up and drop-out opening 111. The material frame 121 has a plurality of separation grooves 1211. The separation grooves 1211 are used to place the raw ceramic sheets 5 in a vertical state.

[0072] The lifting, flipping and grabbing mechanism 13 includes a first support seat 131, a lifting drive assembly 132, a first grabbing assembly 133, a second support seat 134, a flipping drive assembly 135, a second grabbing assembly 136, a third support seat 137, a transport drive assembly 138 and a third grabbing assembly 139, wherein the first support seat 131 is fixedly arranged on the top plate of the first frame 11, the first grabbing assembly 133 is connected to the first support seat 131 through the lifting drive assembly 132, the second support seat 134 is fixedly arranged on the top plate of the first frame 11, the second grabbing assembly 136 is connected to the second support seat 134 through the flipping drive assembly 135, the third support seat 137 is fixedly arranged on the top plate of the first frame 11, and the third grabbing assembly 139 is connected to the third support seat 137 through the transport drive assembly 138;

[0073] The screen printing stage moving device 2 comprises a second frame 21, an alignment lifting platform 22, a screen printing guide rail 23 and a screen printing mechanism 24, wherein the screen printing guide rail 23 is fixedly arranged on the second frame 21, the alignment lifting platform 22 is slidably connected to the screen printing guide rail 23, and the screen printing mechanism 24 is installed above the screen printing guide rail 23;

[0074] The first grabbing assembly 133 can grab the vertical green ceramic sheet 5 from the material frame 121 through the pick-up and release opening 111, and then lift it to the first transfer position;

[0075] The second grabbing assembly 136 can receive the vertical green ceramic sheet from the first transfer position, and then flip the vertical green ceramic sheet into a horizontal green ceramic sheet, so that the horizontal green ceramic sheet is located at the second transfer position;

[0076] The third grabbing assembly 139 can receive the horizontal green ceramic sheet from the second transfer position and then transport it to the third transfer position;

[0077] The alignment lifting platform 22 can receive the horizontal raw ceramic sheet from the third transfer position and then transport it to the screen printing mechanism 24 , and can also transport the printed raw ceramic sheet to the raw ceramic sheet unloading device 3 .

[0078] The staff first places multiple raw ceramic sheets 5 to be printed in a vertical state on the material frame 121, and through the material frame transportation and positioning mechanism 12 of the raw ceramic sheet loading device 1, the raw ceramic sheets 5 in the material frame 121 are moved one by one through the loading and unloading port 111, and the lifting and flipping grasping mechanism 13 automatically takes out the raw ceramic sheets 5 from the material frame 121 one by one, flips the raw ceramic sheets in the vertical state into raw ceramic sheets in the horizontal state, and then transports and places them on the alignment lifting platform 22. The screen printing mechanism 24 prints circuit graphics on the raw ceramic sheets 5 to obtain raw ceramic sheet prints. The raw ceramic sheet unloading device 3 then automatically takes out the raw ceramic sheet prints from the alignment lifting platform 22, flips the raw ceramic sheet prints in the horizontal state into raw ceramic sheet prints in the vertical state, and finally puts them in another material frame. After the other material frame is filled, the staff takes away the other material frame to improve production efficiency.

[0079] The raw porcelain pieces are placed vertically in the material frame so that the staff can look down and check whether the raw porcelain pieces have been printed and count the number of raw porcelain pieces.

[0080] In the raw ceramic sheet feeding device 1, the material frame moves step by step through the pick-up and release port 111. When the material frame stops at the pick-up and release port 111, the lifting and flipping grasping mechanism 13 automatically takes a raw ceramic sheet from the material frame, and the material frame moves step by step to align the next raw ceramic sheet with the pick-up and release port 111 of the raw ceramic sheet feeding device 1.

[0081] After another material frame of the raw ceramic sheet feeding device 3 is placed into a raw ceramic sheet printing port, the other material frame moves stepwise so that the next empty dividing groove 1211 is aligned with the taking-in and putting-out port of the raw ceramic sheet feeding device 3 .

[0082] The servo transport assembly 122 includes a transport platform 1221, a servo motor 1222, a linear guide 1223, a first clamping plate 1224, a second clamping plate 1225, a first clamping driver 1226 and a second clamping driver 1227. The linear guide 1223 is fixedly arranged below the pick-up and release port 111. The transport platform 1221 is slidably connected to the linear guide 1223. The servo motor 1222 controls the movement state of the transport platform 1221. The first clamping plate 1224 is connected to the front side of the transport platform 1221 through the first clamping driver 1226. The second clamping plate 1225 is connected to the rear side of the transport platform 1221 through the second clamping driver 1227. The material frame is placed between the first clamping plate 1224 and the second clamping plate 1225. The beneficial effect of this technical solution is that after the material frame filled with raw ceramic chips enters the transport platform 1221, the first clamping plate 1224 and the second clamping plate 1225 clamp the material frame at the same time to prevent the material frame from shaking when the transport platform 1221 moves step by step under the pick-up and release port 111, causing the pick-up and release position of the raw ceramic chips to deviate, thereby improving the accuracy and stability of picking and releasing the raw ceramic chips.

[0083] The material frame transport and positioning mechanism 12 also includes a full material frame transport component 123 and an empty material frame transport component 124; the full material frame transport component 123 is located at the entrance of the linear guide rail 1223, and the empty material frame transport component 124 is located at the exit of the linear guide rail 1223;

[0084] The servo transport assembly 122 further includes a first transport belt 1228, a material frame receiving sensor 1229, and a material frame sending sensor 1220. The first transport belt 1228 is installed between the first clamping plate 1224 and the second clamping plate 1225. The material frame receiving sensor 1229 is installed at the entrance of the linear guide rail 1223. The material frame sending sensor 1220 is installed at the exit of the linear guide rail 1223. The left side of the transport platform 1221 is the material frame entrance and exit, and the right side is a baffle.

[0085] The full material frame transporting component 123 includes a second conveyor belt 1231 and a full material frame in place sensor 1232, and the full material frame in place sensor 1232 is installed at the exit of the second conveyor belt 1231;

[0086] The empty material frame transporting out assembly 124 comprises a third conveyor belt 1241 and an empty material frame in-position sensor 1242, and the empty material frame in-position sensor 1242 is installed at the outlet of the third conveyor belt 1241. The beneficial effect of this technical solution is that in the raw ceramic sheet feeding device 1, the full material frame transporting in assembly 123 orderly transports the material frame filled with raw ceramic sheets to the transporting material platform 1221 of the servo transport assembly 122, and when the transporting material platform 1221 moves stepwise through the pick-up and release port 111, the stepping moving distance of the transporting material platform 1221 is the spacing between two raw ceramic sheets in the material frame, and after the raw ceramic sheets in the material frame are all taken away, the transporting material platform 1221 orderly transports the empty material frame to the empty material frame transporting out assembly 124, that is, the full material frame enters the raw ceramic sheet feeding device 1, and the empty material frame comes out of the raw ceramic sheet feeding device 1, so that the staff can replenish the raw ceramic sheets in the empty material frame before putting it into production. The operation mode of the raw ceramic sheet unloading device 3 is opposite to that of the raw ceramic sheet loading device 1, that is, an empty material frame enters the raw ceramic sheet unloading device 3, and a full material frame comes out of the raw ceramic sheet unloading device 3.

[0087] For example, in the raw porcelain sheet loading device 1, the material frame filled with raw porcelain sheets is placed by the staff on the second conveyor belt 1231 of the full material frame transport component 123, and the second conveyor belt 1231 transports the material frame to the direction of the servo transport component 122. When the full material frame in place sensor 1232 detects the material frame, the second conveyor belt 1231 stops working; when there is no material frame on the first conveyor belt 1228 of the servo transport component 122, and the transport platform 1221 moves to the entrance of the linear guide rail 1223 and is detected by the material frame receiving sensor 1229, the first conveyor belt 1228 is aligned with the second conveyor belt 1231, and the second conveyor belt 1231 is started to transfer the material frame to the first conveyor belt 1228.

[0088] After all the raw ceramic sheets in the material frame of the transport platform 1221 are taken away, the transport platform 1221 moves to the exit of the linear guide rail 1223 and is detected by the material frame sending sensor 1220. When the empty material frame in place sensor 1242 detects that there is no material frame on the third conveyor belt 1241, the first conveyor belt 1228 is aligned with the third conveyor belt 1241, and the first conveyor belt 1228 is started to transfer the material frame to the third conveyor belt 1241. When the empty material frame in place sensor 1242 detects the material frame, the third conveyor belt 1241 stops working.

[0089] The material frame transport and positioning mechanism 12 further includes a cylinder material lifting assembly 125, which is installed on the bottom plate of the first frame 11 and is also located directly below the loading and unloading port 111;

[0090] The bottom of the material frame 121 has a material ejection port 1212 and a support plate 1213, and the cylinder ejection assembly 125 can pass through the ejection port 1212 and lift the raw porcelain sheet in the vertical state. The beneficial effect of this technical solution is that the support plate 1213 is used to support the raw porcelain sheet, and the upper end of the raw porcelain sheet first emerges from the material frame using the cylinder ejection assembly, which helps the first grabbing assembly 133 to first grasp the upper end of the raw porcelain sheet, and then lift and remove the raw porcelain sheet from the material frame. The cylinder ejection assembly 125 includes a connected cylinder and an ejection plate 1251, and the ejection plate 1251 can rise through the ejection port 1212. After the lifted raw porcelain sheet is removed, the ejection plate 1251 descends and leaves the material frame.

[0091] The lifting drive assembly 132 is a telescopic cylinder, the first grabbing assembly 133 includes a first pneumatic clamp 1331 and a lifting arm 1332, two of the first pneumatic clamps 1331 are installed on the lifting arm 1332, and the lifting arm 1332 is connected to the first support seat 131 through the telescopic cylinder;

[0092] The flip driving assembly 135 is a corner motor, and the second grabbing assembly 136 includes a second pneumatic clamp 1361 and a flip arm 1362. The second pneumatic clamp 1361 is installed at one end of the flip arm 1362, and the other end of the flip arm 1362 is connected to the second support seat 134 through the corner motor. The two flip arms 1362 are respectively located on both sides of the first support seat 131;

[0093] The transport drive assembly 138 includes an up-and-down moving cylinder 1381, a horizontal moving cylinder 1382, a slider 1383 and a transport arm 1384. The slider 1383 is connected to the third support seat 137 via the horizontal moving cylinder 1382. The transport arm 1384 is connected to the slider 1383 via the up-and-down moving cylinder 1381. The third grabbing assembly 139 is a suction cup, which is installed on the lower side of the transport arm 1384.

[0094] The screen printing stage moving device 2 also includes a CCD positioning mechanism 25, which is connected to the alignment lifting platform 22 via a data line. The CCD positioning mechanism 25 is fixedly arranged on the second frame 21 and is also located at the third transfer position. The beneficial effect of this technical solution is that the CCD visual system is used to complete precise alignment. The CCD visual system recognizes the mark of the raw ceramic sheet and the mark of the alignment lifting platform, controls and fine-tunes the position of the alignment lifting platform 22 and the position of the third grabbing component 139, and helps the third grabbing component 139 to accurately place the horizontal raw ceramic sheet on the alignment lifting platform 22; ensuring that the raw ceramic sheet product and the printing screen are precisely overlapped. The alignment lifting platform 22 is a UVW alignment platform and has a lifting function.

[0095] The screen printing mechanism 24 includes a column 241, a printing seat 242, a screen 243, a scraper assembly 244, a lifting cylinder 245 and a connecting plate 246. The printing seat 242 is connected to the second frame 21 through the column 241, the screen 243 is fixedly arranged on the printing seat 242, the scraper assembly 244 is connected to the connecting plate 246 through the lifting cylinder 245, and the connecting plate 246 is connected to the printing seat 242 in a reciprocating sliding manner. The beneficial effect of this technical solution is that metal slurry is placed on the upper surface of the screen 243. When printing is required, the scraper assembly 244 descends to contact the screen 243, and then moves to allow the metal slurry to penetrate the screen 243, and then the scraper assembly 244 rises and detaches from the screen 243.

[0096] The positioning lifting platform 22 transports the horizontal raw ceramic sheet to the bottom of the screen 243, and then rises to make the horizontal raw ceramic sheet contact with the lower surface of the screen 243. After the scraper assembly 244 allows the metal slurry to pass through the screen 243 and print on the horizontal raw ceramic sheet to obtain the raw ceramic sheet print, the positioning lifting platform 22 descends to make the raw ceramic sheet print separate from the screen 243, and then the positioning lifting platform 22 transports the raw ceramic sheet print away from under the screen 243.

[0097] In the screen printing mechanism 24, the scraper angle of the scraper assembly, the pressure of the scraper printing, the distance between the scraper assembly and the screen, and the speed of the scraper printing can all be adjusted by the staff according to actual conditions.

[0098] The screen printing stage moving device 2 further comprises a plasma blowing cleaning product mechanism 26, which is fixedly arranged on the second frame 21 and is also located between the CCD positioning mechanism and the screen printing mechanism 24. The beneficial effect of this technical solution is that the green ceramic sheet first passes through the cleaning station of the plasma blowing cleaning product mechanism 26, and the plasma wind is used to blow away the dust on the alignment lifting stage 22 and the green ceramic sheet, ensuring that the completely clean green ceramic sheet product is sent to the screen printing mechanism 24, thereby improving the quality of the green ceramic sheet print.

[0099] It also includes: a screen cleaning device 4, including a third frame 41, a cleaning drive mechanism 42 and a film material retracting mechanism 43, wherein the third frame 41 is located in front of the second frame 21;

[0100] The cleaning drive mechanism 42 includes a micro-mucosal membrane 421, a cleaning seat 422, a cleaning telescopic assembly 423, a first cleaning lifting assembly 424, a second cleaning lifting assembly 425, a first roller 426, and a second roller 427. The cleaning seat 422 is connected to the third frame 41 through the cleaning telescopic assembly 423, the first roller 426 is connected to the cleaning seat 422 through the first cleaning lifting assembly 424, the second roller 427 is connected to the cleaning seat 422 through the second cleaning lifting assembly 425, and the first roller 426 and the second roller 427 are arranged front and back;

[0101] The film material retracting mechanism 43 includes a film material discharging shaft 431 and a film material reeling shaft 432, both of which are rotatably arranged on the third frame 41, and the micro-viscosity film 421 is wound around the film material discharging shaft 431, the first roller 426, the second roller 427 and the film material reeling shaft 432. The beneficial effect of this technical solution is that after the alignment lifting platform 22 transports the raw ceramic sheet print from the screen printing mechanism 24, the micro-viscosity film 421 of the screen cleaning device 4 cleans the screen 243 to prevent the metal slurry from remaining and accumulating on the lower surface of the screen 243, causing the next circuit pattern printing to be blurred. The utility model is provided with the function of cleaning the screen 243 to improve the quality of the raw ceramic sheet print. The film material discharging shaft 431 and the film material reeling shaft 432 are driven by two motors respectively. After the screen 243 is used for a long time, micro-slurry will overflow. The micro-mucosal film 421 is used as a cleaning film to wipe the slurry overflowing from the screen 243 to ensure the quality of the printed graphics. The film reel 432 is used to recycle the used micro-mucosal film.

[0102] The clean micro-mucosa 421 exits from the film material discharging shaft 431 and reaches the first roller 426 and the second roller 427. The wiped micro-mucosa 421 moves into the film material reeling shaft 432, and the micro-mucosa 421 is conveniently recovered under the condition of ensuring the cleanness of the screen. The first roller 426 and the second roller 427 are used to open the micro-mucosa 421 so that the micro-mucosa 421 can better wipe the screen 243.

[0103] The cleaning telescopic assembly 423, the first cleaning lifting assembly 424, and the second cleaning lifting assembly 425 are all cylinders.

[0104] The screen cleaning device 4 further comprises a film material deviation corrector 433, which is fixedly connected to the third frame 41, and the micro-mucosal film 421 passes through the film material deviation corrector 433. The beneficial effect of this technical solution is to prevent the micro-mucosal film 421 from being deviated and wrinkled during the movement process.

[0105] The screen cleaning device 4 further includes a conditioning mechanism 434, which is disposed between the film material deviation corrector 433 and the film material discharge shaft 431, and the micro-viscosity film 421 passes through the conditioning mechanism 434;

[0106] The seasoning mechanism 434 includes a first guide shaft 4341, a second guide shaft 4342, a seasoning shaft 4343 and a seasoning lifting assembly 4344. The first guide shaft 4341 and the second guide shaft 4342 are fixedly connected to the third frame 41. The seasoning shaft 4343 is connected to the third frame 41 through the seasoning lifting assembly 4344. The seasoning shaft 4343 can pass between the first guide shaft 4341 and the second guide shaft 4342. The beneficial effect of this technical solution is that the film material discharging shaft 431 and the film material winding shaft 432 do not need to be started at the same time. When the film material winding shaft 432 stops, the material adjustment shaft 4343 moves downward to withdraw the micro-mucous film 421 from the film material discharging shaft 431; when cleaning the screen 243, the film material winding shaft 432 is started, and the film material discharging shaft 431 is stopped. After ensuring that the film material is in a taut state, the material adjustment shaft 4343 moves upward to avoid the film material from loosening or tearing due to the asynchronous rotation of the film material discharging shaft 431 and the film material winding shaft 432.

[0107] The screen cleaning device 4 also includes a material pressing mechanism 435, which includes a material pressing block 4351 and a material pressing lifting assembly 4352. The material pressing block 4351 is connected to the third frame 41 through the material pressing lifting assembly 4352, and the material pressing block 4351 is located above the first guide shaft 4341. The beneficial effect of this technical solution is that when the material pressing block 4351 rises and separates from the micro-mucosal membrane 421, the material conditioning shaft 4343 moves downward again to withdraw the micro-mucosal membrane 421 from the film material releasing shaft 431; when the material pressing block 4351 moves downward to press the micro-mucosal membrane 421 against the first guide shaft 4341, the film material reeling shaft 431 starts, the material conditioning shaft 4343 moves upward, and the micro-mucosal membrane 421 wipes the screen 243.

[0108] The screen printing mechanism 24 also includes a stage position sensor, which is installed on the screen printing guide rail 23 and is also located directly below the screen 243. The stage position sensor is connected to the cleaning drive mechanism 42 via a data line. The beneficial effect of this technical solution is that when the screen printing mechanism 24 prints the circuit pattern on the raw ceramic sheet, the screen cleaning device 4 is in a standby state, and after the alignment lifting platform 22 transports the raw ceramic sheet print product away, the micro-mucous membrane 421 of the screen cleaning device 4 enters the screen printing mechanism 24, wipes and cleans the screen 243, and then the micro-mucous membrane 421 exits the screen printing mechanism 24 to prevent collision with the alignment lifting platform 22. When the stage position sensor detects the alignment lifting stage 22, it sends a blocking signal to the cleaning drive mechanism 42, and the cleaning drive mechanism 42 is outside the screen printing mechanism 24; when the stage position sensor does not detect the alignment lifting stage 22, it sends a permission signal to the cleaning drive mechanism 42, and the cleaning drive mechanism 42 starts to make the cleaning seat 422 carry the micro-mucosal film 421 into the screen printing mechanism 24.

[0109] The green ceramic sheet automatic printing machine of the utility model also includes a control system of the prior art, which controls the working states of the green ceramic sheet feeding device 1, the screen printing stage moving device 2, the green ceramic sheet unloading device 3, and the screen cleaning device 4 to carry out the green ceramic sheet automatic printing production in an orderly manner.

[0110] A green ceramic sheet automatic printing process comprises the following steps:

[0111] S1, placing the vertical green ceramic sheet in the partition groove 1211 of the material frame 121;

[0112] S2, the first grabbing assembly 133 grabs the vertical green ceramic sheet from the material frame 121, and then lifts it to the first transfer position;

[0113] S3, the second grabbing assembly 136 moves to the first transfer position and grabs the vertical raw porcelain sheet, the first grabbing assembly 133 releases the vertical raw porcelain sheet, and then the second grabbing assembly 136 turns the vertical raw porcelain sheet into a horizontal raw porcelain sheet, so that the horizontal raw porcelain sheet is located at the second transfer position;

[0114] S4, the third grabbing assembly 139 moves to the second transfer position and grabs the horizontal green porcelain sheet, the second grabbing assembly 136 releases and then releases the horizontal green porcelain sheet, and then the third grabbing assembly 139 moves the horizontal green porcelain sheet to the third transfer position;

[0115] S5, the alignment lifting platform 22 moves to the third transfer position, and the third grabbing assembly 139 releases the horizontal green ceramic sheet and places the horizontal green ceramic sheet on the alignment lifting platform 22;

[0116] S6, the alignment lifting platform 22 transports the horizontal green ceramic sheet to the screen printing mechanism 24;

[0117] S7, the screen printing mechanism 24 prints the circuit pattern on the green ceramic sheet in the horizontal state to obtain a green ceramic sheet print;

[0118] S8, the alignment lifting platform 22 transports the horizontal green ceramic sheet printed product to the fourth transfer position;

[0119] S8-1, the cleaning seat 422 carries the micro-mucosal film 421 and moves to the screen printing mechanism 24, the cleaning seat 422 first reaches the bottom of the screen 243, and then rises to make the micro-mucosal film 421 contact with the screen 243, the film material retracting mechanism 43 makes the micro-mucosal film 421 move to wipe the screen 243, and then the cleaning seat 422 descends to make the micro-mucosal film 421 separate from the screen 243, and the cleaning seat 422 carries the micro-mucosal film 421 out of the screen printing mechanism 24.

[0120] S9, the fourth grabbing assembly moves to the fourth transfer position and grabs the horizontal green ceramic sheet print, and then moves it to the fifth transfer position;

[0121] S10, the fifth gripping assembly moves to the fifth transfer position and grips the raw ceramic sheet printed product in a horizontal state, the fourth gripping assembly releases the raw ceramic sheet printed product in a horizontal state and then exits from the fifth transfer position, the fifth gripping assembly flips the raw ceramic sheet printed product in a horizontal state into a raw ceramic sheet printed product in a vertical state, and places the raw ceramic sheet printed product in a vertical state at the sixth transfer position;

[0122] S11, the sixth grasping assembly moves to the sixth transfer position and grasps the vertical raw porcelain sheet, the fifth grasping assembly then releases the vertical raw porcelain sheet, and the sixth grasping assembly places the vertical raw porcelain sheet in the partition groove of another material frame.

[0123] The fourth grabbing assembly, the fifth grabbing assembly and the sixth grabbing assembly belong to the raw porcelain sheet unloading device. The structure of the fourth grabbing assembly is the same as that of the third grabbing assembly, the structure of the fifth grabbing assembly is the same as that of the second grabbing assembly, and the structure of the sixth grabbing assembly is the same as that of the first grabbing assembly.

Claims

1. An automatic printing machine for raw ceramic sheets, It is characterized in that include: Green ceramic sheet loading device, screen printing stage moving device and green ceramic sheet unloading device; The raw ceramic sheet loading device has the same structure as the raw ceramic sheet unloading device, and is located at the loading port and unloading port of the screen printing stage moving device respectively; The raw ceramic sheet feeding device comprises a first frame, a material frame transport positioning mechanism and a lifting, flipping and grabbing mechanism, the material frame transport positioning mechanism comprises a material frame and a servo transport assembly, the top plate of the first frame is provided with a pick-up and drop-out opening, the servo transport assembly is mounted on the bottom plate of the first frame, the material frame is placed on the servo transport assembly, the material frame can pass under the pick-up and drop-out opening, the material frame has a plurality of partition grooves, the partition grooves are used to place the raw ceramic sheets in a vertical state; The lifting, flipping and grabbing mechanism comprises a first support seat, a lifting drive assembly, a first grabbing assembly, a second support seat, a flipping drive assembly, a second grabbing assembly, a third support seat, a transport drive assembly and a third grabbing assembly, wherein the first support seat is fixedly arranged on the top plate of the first frame, the first grabbing assembly is connected to the first support seat through the lifting drive assembly, the second support seat is fixedly arranged on the top plate of the first frame, the second grabbing assembly is connected to the second support seat through the flipping drive assembly, the third support seat is fixedly arranged on the top plate of the first frame, and the third grabbing assembly is connected to the third support seat through the transport drive assembly; The screen printing stage moving device comprises a second frame, an alignment lifting platform, a screen printing guide rail and a screen printing mechanism, wherein the screen printing guide rail is fixedly arranged on the second frame, the alignment lifting platform is slidably connected to the screen printing guide rail, and the screen printing mechanism is installed above the screen printing guide rail; The first grabbing assembly can grab the vertical green ceramic sheet from the material frame through the pick-up and release opening, and then lift it to the first transfer position; The second grabbing assembly can receive the vertical green ceramic sheet from the first transfer position, and then flip the vertical green ceramic sheet into a horizontal green ceramic sheet, so that the horizontal green ceramic sheet is located at the second transfer position; The third grabbing assembly can receive the horizontal green ceramic sheet from the second transfer position and then transport it to the third transfer position; The alignment lifting platform can receive the horizontal raw ceramic sheet from the third transfer position and then transport it to the screen printing mechanism, and can also transport the printed raw ceramic sheet to the raw ceramic sheet unloading device.

2. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that The servo transport assembly includes a transport platform, a servo motor, a linear guide, a first clamping plate, a second clamping plate, a first clamping driver and a second clamping driver. The linear guide is fixedly arranged below the pick-up and release port. The transport platform is slidably connected to the linear guide. The servo motor controls the movement state of the transport platform. The first clamping plate is connected to the front side of the transport platform through the first clamping driver. The second clamping plate is connected to the rear side of the transport platform through the second clamping driver. The material frame is placed between the first clamping plate and the second clamping plate.

3. The automatic printing machine for green ceramic sheets according to claim 2, It is characterized in that The material frame transport and positioning mechanism also includes a full material frame transport in component and an empty material frame transport out component; The full material frame transporting component is located at the entrance of the linear guide rail, and the empty material frame transporting component is located at the exit of the linear guide rail; The servo transport assembly further includes a first transport belt, a material frame receiving sensor, and a material frame sending sensor. The first transport belt is installed between the first clamping plate and the second clamping plate. The material frame receiving sensor is installed at the entrance of the linear guide rail. The material frame sending sensor is installed at the exit of the linear guide rail. The left side of the transport platform is the material frame entrance and exit, and the right side is a baffle. The full material frame transporting component comprises a second conveyor belt and a full material frame in place sensor, and the full material frame in place sensor is installed at the exit of the second conveyor belt; The empty material frame carrying-out component comprises a third conveyor belt and an empty material frame in-place sensor, and the empty material frame in-place sensor is installed at the exit of the third conveyor belt.

4. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that The material frame transport and positioning mechanism also includes a cylinder material lifting assembly, which is installed on the bottom plate of the first frame and is also located directly below the loading and unloading port; A material lifting opening and a support plate are provided at the bottom of the material frame, and the cylinder material lifting assembly can pass through the material lifting opening and lift the vertical raw ceramic sheet.

5. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that The lifting drive assembly is a telescopic cylinder, the first grabbing assembly includes a first pneumatic clamp and a lifting arm, two first pneumatic clamps are installed on the lifting arm, and the lifting arm is connected to the first support seat through the telescopic cylinder; The flip driving assembly is a corner motor, the second grabbing assembly includes a second pneumatic clamp and a flip arm, the second pneumatic clamp is installed at one end of the flip arm, the other end of the flip arm is connected to the second support seat through the corner motor, and the two flip arms are respectively located on both sides of the first support seat; The transport drive assembly includes an up-and-down moving cylinder, a horizontal moving cylinder, a slider and a transport arm. The slider is connected to the third support seat via the horizontal moving cylinder. The transport arm is connected to the slider via the up-and-down moving cylinder. The third grabbing assembly is a suction cup, which is mounted on the lower side of the transport arm.

6. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that The screen printing stage moving device further comprises a CCD positioning mechanism and a plasma blowing cleaning product mechanism, wherein the CCD positioning mechanism is connected to the alignment lifting stage via a data line, and the CCD positioning mechanism is fixedly arranged on the second frame and is also located at the third transfer position; The plasma blowing cleaning product mechanism is fixedly arranged on the second frame and is also located between the CCD positioning mechanism and the screen printing mechanism.

7. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that The screen printing mechanism includes a column, a printing base, a screen, a scraper assembly, a lifting cylinder and a connecting plate. The printing base is connected to the second frame through the column, the screen is fixed on the printing base, the scraper assembly is connected to the connecting plate through the lifting cylinder, and the connecting plate is connected to the printing base in a reciprocating sliding manner.

8. The automatic printing machine for green ceramic sheets according to claim 1, It is characterized in that Also includes: A screen cleaning device, comprising a third frame, a cleaning drive mechanism and a film material retracting and releasing mechanism, wherein the third frame is located in front of the second frame; The cleaning drive mechanism includes a micro-mucosal membrane, a cleaning seat, a cleaning telescopic assembly, a first cleaning lifting assembly, a second cleaning lifting assembly, a first roller and a second roller, the cleaning seat is connected to the third frame through the cleaning telescopic assembly, the first roller is connected to the cleaning seat through the first cleaning lifting assembly, the second roller is connected to the cleaning seat through the second cleaning lifting assembly, and the first roller and the second roller are arranged front and back; The film material retracting mechanism includes a film material discharging shaft and a film material winding shaft, and the film material discharging shaft and the film material winding shaft are both rotatably arranged on the third frame, and the micro-viscosity film is wound around the film material discharging shaft, the first roller, the second roller and the film material winding shaft.

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