Raw ceramic chip lamination device and method utilizing electrostatic adsorption

Abstract

The invention relates to the technical field of ceramic substrate processing, in particular to a green ceramic chip lamination device and method utilizing electrostatic adsorption, and the device comprises a carrying unit, a visual unit, a lower electrostatic generation unit and a lamination platform unit; the carrying unit comprises a suction cup installation bottom frame, a suction cup bottom plate is fixed to a lifting air cylinder of the suction cup installation bottom frame, a first suction cup is fixedly installed on the suction cup bottom plate, and an upper static electricity generation unit is further installed on the suction cup installation bottom frame. The visual unit comprises a base, and a fine adjustment platform and a camera assembly are fixedly installed on the base. A second suction cup is mounted on the fine adjustment platform; the lower electrostatic generation unit is fixedly mounted on the carrying unit; the lamination platform unit comprises a lamination base, a heating plate is fixedly installed on the lamination base, and a third suction cup is fixedly installed on the heating plate. According to the lamination device disclosed by the invention, positive and negative charge plasmas are sprayed on the raw ceramic chips needing to be laminated, the two raw ceramic chips are tightly attached by utilizing an electrostatic adsorption principle, and the lamination process can improve the yield of ceramic substrates.

Description

Technical Field

[0001] This invention relates to the field of ceramic substrate processing technology, specifically to a device and method for stacking green ceramic sheets using electrostatic adsorption. Background Technology

[0002] Ceramic substrates, due to their advantages of high current carrying capacity, high heat dissipation, good insulation, high voltage resistance, strong adhesion, and high reliability, are widely used in LED, new energy vehicles, aerospace, and rail transportation, making them the substrate material with the greatest development potential in the market. With the continuous progress of my country's industry, ceramic substrate technology has been continuously refined, leading to numerous niche markets and involving more fields, indicating significant development space and a promising future for the industry. Ceramic substrates are sintered from multiple layers of green ceramic sheets through a lamination process. Traditional lamination equipment often adds surface adhesive or spray adhesive to the green ceramic sheets during lamination to ensure the stacking accuracy of adjacent layers. This process easily leads to air bubbles in the stacked green ceramic sheets, causing short circuits, open circuits, and other faults in the ceramic substrate, greatly reducing the yield rate. Furthermore, if the green ceramic sheets have large cavities, surface adhesive or spray adhesive can cause surface material deformation, further affecting the yield of the ceramic substrate. Therefore, surface adhesive or spray adhesive processes for green ceramic sheets are not suitable for the increasingly stringent lamination accuracy requirements of ceramic substrates. Summary of the Invention

[0003] To address the problem of low ceramic substrate yield caused by surface dispensing or spraying processes during the stacking of green ceramic sheets, this invention provides a device and method for stacking green ceramic sheets using electrostatic adsorption.

[0004] This invention is achieved using the following technical solution: a device for stacking green ceramic tiles using electrostatic adsorption, comprising a transport unit, a vision unit, a lower electrostatic generating unit, and a stacking platform unit; the transport unit includes a suction cup mounting base that can slide on a support, a lifting cylinder fixedly mounted on the suction cup mounting base, a suction cup base plate fixedly mounted on the extension shaft of the lifting cylinder, a first suction cup fixedly mounted on the suction cup base plate, and an upper electrostatic generating unit mounted on the left side of the suction cup mounting base; the vision unit is located on the right side of the transport unit, and includes a base, on which a fine-tuning platform and a camera assembly are fixedly mounted; a suction cup bracket is fixedly mounted on the fine-tuning platform; a second suction cup is fixedly mounted on the suction cup bracket; the lower electrostatic generating unit is fixedly mounted on the transport unit; the stacking platform unit is located on the left side of the transport unit, and includes a stacking base, on which a heating plate is fixedly mounted, and a third suction cup is fixedly mounted on the heating plate.

[0005] The aforementioned device for stacking green ceramic tiles using electrostatic adsorption includes a conveying unit comprising a guide rail mounting frame and a slide table mounting frame. A guide rail is mounted on the upper side of the guide rail mounting frame; a slide table is fixedly mounted on the slide table mounting frame; a suction cup mounting base is slidably mounted across the guide rail and the slide table; a linear bearing is also mounted on the suction cup mounting base; guide shafts are slidably mounted on the linear bearings; the lower end of the guide shaft is fixedly mounted on a guide shaft base plate; the extension shaft of the lifting cylinder is fixedly mounted on the guide shaft base plate; and a suction cup base plate is fixedly mounted below the guide shaft base plate.

[0006] The aforementioned device for stacking raw ceramic tiles using electrostatic adsorption has an adjustment platform fixedly mounted on the base of the vision unit; a fine-tuning platform is fixedly mounted on the adjustment platform.

[0007] The aforementioned device for stacking green ceramic tiles using electrostatic adsorption has a heat-insulating support frame fixedly installed on the stacking base of the stacking platform unit; a heat-insulating plate is fixedly installed on the heat-insulating support frame, and a heating plate is fixedly installed on the heat-insulating plate.

[0008] The above-mentioned device for stacking raw ceramic sheets using electrostatic adsorption has an upper electrostatic generating unit with a voltage adjustment range of 20,000 to 50,000 volts and a lower electrostatic generating unit with a voltage adjustment range of 20,000 to 50,000 volts.

[0009] In the above-mentioned device for stacking raw ceramic sheets using electrostatic adsorption, the vertical distance between the upper electrostatic generating unit and the third suction cup is less than or equal to 20 mm; the vertical distance between the lower electrostatic generating unit and the first suction cup is less than or equal to 20 mm.

[0010] The above-mentioned device for stacking raw ceramic sheets using electrostatic adsorption has a heating temperature range of 25℃ to 80℃ for the heating plate.

[0011] The above-mentioned device for stacking raw ceramic sheets using electrostatic adsorption has a first suction cup, a second suction cup, and a third suction cup made of porous non-metallic material.

[0012] A method for stacking raw ceramic tiles using electrostatic adsorption includes the following steps: S1: Place the first piece of raw ceramic tile on the second suction cup of the vision unit, and the fine-tuning platform adjusts the position of the raw ceramic tile according to the fine-tuning parameters given by the camera component; S2: The transport unit drives the suction cup mounting base to move above the vision unit, and the lifting cylinder drives the first suction cup to descend and pick up the first piece of raw ceramic on the second suction cup. S3: The transport unit transports the first green ceramic tile and places it on the stacking platform unit, where it is then adsorbed by the third suction cup; S4: Place the second ceramic tile on the second suction cup of the vision unit, and the fine-tuning platform adjusts the position of the ceramic tile according to the fine-tuning parameters given by the camera component; S5: The transport unit drives the suction cup mounting base to move above the vision unit, and the lifting cylinder drives the first suction cup to descend and pick up the second piece of raw ceramic on the second suction cup. S6: When the transport unit drives the suction cup mounting base to move past the lower electrostatic generator unit, the lower electrostatic generator unit sprays negatively charged plasma onto the surface of the second green ceramic tile; at the same time, when the suction cup mounting base passes the stacking platform unit, the upper electrostatic generator unit sprays positively charged plasma onto the first green ceramic tile adsorbed by the third suction cup. S7: The transport unit transports and places the second green ceramic tile onto the stacking platform unit. At this time, the first and second green ceramic tiles are tightly adhered due to the attraction between opposite poles. Repeat steps S4 to S7 to complete the stacking of the remaining raw ceramic pieces.

[0013] In the above-mentioned method for stacking green ceramic tiles using electrostatic adsorption, the moving speed of the suction cup mounting base when passing through the stacking platform unit is less than or equal to 20 mm / s, and the moving speed of the suction cup mounting base when passing through the lower electrostatic generation unit is less than or equal to 20 mm / s.

[0014] The stacking device of this invention sequentially sprays positive and negative charged plasma onto the green ceramic sheets to be stacked. Adjacent green ceramic sheets are tightly bonded by utilizing the principle of attraction between opposite charges, thereby avoiding the adverse effects of traditional dispensing / spraying methods on the surface of green ceramic sheets, such as modification, bubbles, and short circuits, and improving the yield of ceramic substrates in the stacking process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the stacking device of the present invention.

[0016] Figure 2 This is a structural diagram of the handling unit.

[0017] Figure 3 This is a schematic diagram of the structure of a visual unit.

[0018] Figure 4 This is a schematic diagram of the stacked platform unit.

[0019] Figure 5 for Figure 1 Side view.

[0020] In the diagram: 1-Transportation unit, 2-Vision unit, 3-Lower electrostatic generation unit, 4-Stacking platform unit.

[0021] 101-Guide rail mounting bracket, 102-Slide table mounting bracket, 103-Guide rail, 104-Slide table, 105-Suction cup mounting base, 106-Linear bearing, 107-Guide shaft, 108-Lifting cylinder, 109-Fixing block, 110-Guide shaft base plate, 111-Suction cup base plate, 112-First suction cup, 113-Upper electrostatic generating unit.

[0022] 201-Base, 202-Adjustment platform base, 203-Camera assembly, 204-Fine-tuning platform, 205-Suction cup bracket, 206-Second suction cup.

[0023] 401-Stacked base, 402-Insulation support frame, 403-Insulation plate, 404-Heating plate, 405-Third suction cup. Detailed Implementation

[0024] A device for stacking raw ceramic tiles using electrostatic adsorption, the device comprising: a handling unit 1, a vision unit 2, a lower electrostatic generation unit 3, and a stacking platform unit 4.

[0025] The transport unit 1 is fixedly mounted on the frame. The transport unit 1 includes a guide rail mounting frame 101 and a slide table mounting frame 102. A guide rail 103 is mounted on the upper side of the guide rail mounting frame 101. A slide table 104 is fixedly mounted on the slide table mounting frame 102. A suction cup mounting base 105 is slidably mounted across the guide rail 103 and the slide table 104. A lifting cylinder 108 and two linear bearings 106 are fixedly mounted on the top of the suction cup mounting base 105. The lifting cylinder 108 is positioned at the location of the two linear bearings 106. In the middle of 06; a guide shaft 107 is slidably mounted on each linear bearing 106, and the lower end of the guide shaft 107 is fixedly mounted on the guide shaft base plate 110; a fixing block 109 is fixedly mounted on the extension shaft of the lifting cylinder 108; the fixing block 109 is fixedly mounted on the guide shaft base plate 110; a suction cup base plate 111 is fixedly mounted below the guide shaft base plate 110, and a first suction cup 112 is fixedly mounted on the suction cup base plate 111; an upper electrostatic generating unit 113 is mounted on the left side of the suction cup mounting base 105.

[0026] Preferably, the first suction cup 112 is made of a porous non-metallic material; Preferably, the voltage adjustment range of the upper electrostatic generating unit 113 is 20,000 to 50,000 volts; Preferably, the distance between the upper electrostatic generating unit 113 and the third suction cup 405 is ≤20mm; Preferably, the moving speed of the suction cup mounting base 105 when passing through the stacking platform unit 4 is ≤20mm / s.

[0027] The vision unit 2 is fixedly mounted on the frame. Its purpose is to identify the mark on the green ceramic tile and adjust the position of each layer of green ceramic tile to ensure stacking accuracy. Located on the right side of the transport unit 1, the vision unit 2 includes a base 201. An adjustment platform base 202 and a camera assembly 203 are fixedly mounted on the base 201. A fine-tuning platform 204 is fixedly mounted on the adjustment platform base 202. A suction cup bracket 205 is fixedly mounted on the fine-tuning platform 204. A second suction cup 206 is fixedly mounted on the suction cup bracket 205.

[0028] Preferably, the material of the second suction cup 206 is a porous non-metallic material; Preferably, the fine-tuning platform 204 can adjust the position of the green ceramic piece according to the fine-tuning parameters given by the camera component 203.

[0029] The lower electrostatic generator unit 3 is fixedly installed on the transport unit 1. The position height of the lower electrostatic generator unit 3 is lower than the position height of the first suction cup 112. Its purpose is to spray charged plasma onto the green ceramic sheet adsorbed on the first suction cup 112.

[0030] Preferably, the vertical distance between the lower electrostatic generating unit 3 and the first suction cup 112 is ≤20mm; Preferably, the voltage adjustment range of the lower electrostatic generator unit 3 is 20,000 to 50,000 volts; Preferably, the moving speed of the suction cup mounting base 105 when passing the lower electrostatic generating unit 3 is ≤20mm / s.

[0031] The stacking platform unit 4 is fixedly installed on the frame and located on the left side of the conveying unit 1. The stacking platform unit 4 includes a stacking base 401, on which a heat insulation support frame 402 is fixedly installed; a heat insulation plate 403 is fixedly installed on the heat insulation support frame 402, a heating plate 404 is fixedly installed on the heat insulation plate 403, and a third suction cup 405 is fixedly installed on the heating plate 404.

[0032] Preferably, the third suction cup 405 is made of a porous non-metallic material; Preferably, the heating temperature range of the heating plate 404 is 25℃~80℃.

[0033] Furthermore, this invention also mentions a method for stacking raw ceramic shards, the steps of which are as follows: S1: Place the first piece of raw ceramic tile on the second suction cup 206 of the vision unit 2, and the fine-tuning platform 204 adjusts the position of the raw ceramic tile according to the fine-tuning parameters given by the camera component 203; S2: The transport unit 1 moves the suction cup mounting base 105 above the vision unit 2 via the slide table 104, and the lifting cylinder 108 drives the first suction cup 112 to descend and pick up the first piece of raw ceramic on the second suction cup 206. S3: The transport unit 1 transports and places the first piece of green ceramic tile on the stacking platform unit 4, and the third suction cup 405 completes the adsorption; S4: Place the second piece of raw ceramic tile on the second suction cup 206 of the vision unit 2, and the fine-tuning platform 204 adjusts the position of the raw ceramic tile according to the fine-tuning parameters given by the camera assembly 203. S5: The transport unit 1 moves the suction cup mounting base 105 above the vision unit 2 via the slide table 104, and the lifting cylinder 108 drives the first suction cup 112 to descend and pick up the second piece of raw ceramic on the second suction cup 206. S6: When the conveying unit 1 moves through the slide table 104 and drives the suction cup mounting base 105 to pass the lower electrostatic generating unit 3, the lower electrostatic generating unit 3 sprays negatively charged plasma onto the surface of the second green ceramic tile; at the same time, when the suction cup mounting base 105 passes through the stacking platform unit 4, the upper electrostatic generating unit 113 sprays positively charged plasma onto the first green ceramic tile adsorbed by the third suction cup 405. S7: The transport unit 1 transports and places the second green ceramic tile on the stacking platform unit 4. At this time, the first green ceramic tile and the second green ceramic tile are tightly attached due to the attraction between opposite poles. Proceed through steps S4 to S7 in sequence to complete the stacking of the remaining raw ceramic pieces.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for stacking raw ceramic tiles using electrostatic adsorption, characterized in that: The system includes a transport unit (1), a vision unit (2), a lower electrostatic generator unit (3), and a stacking platform unit (4). The transport unit (1) includes a suction cup mounting base (105) that can slide on a support. A lifting cylinder (108) is fixedly mounted on the suction cup mounting base (105). A suction cup base plate (111) is fixedly mounted on the extension shaft of the lifting cylinder (108). A first suction cup (112) is fixedly mounted on the suction cup base plate (111). An upper electrostatic generator unit (113) is mounted on the left side of the suction cup mounting base (105). The vision unit (2) is located on the right side of the transport unit (1). The vision unit (2) includes... A base (201) is fixedly mounted with a fine-tuning platform (204) and a camera assembly (203); a suction cup bracket (205) is fixedly mounted on the fine-tuning platform (204); a second suction cup (206) is fixedly mounted on the suction cup bracket (205); a lower electrostatic generating unit (3) is fixedly mounted on the transport unit (1); a stacking platform unit (4) is located on the left side of the transport unit (1), and the stacking platform unit (4) includes a stacking base (401), a heating plate (404) is fixedly mounted on the stacking base (401), and a third suction cup (405) is fixedly mounted on the heating plate (404).

2. The device for stacking raw ceramic sheets using electrostatic adsorption according to claim 1, characterized in that: The handling unit (1) includes a guide rail mounting bracket (101) and a slide table mounting bracket (102). A guide rail (103) is installed on the upper side of the guide rail mounting bracket (101). A slide table (104) is fixedly installed on the slide table mounting bracket (102). A suction cup mounting base (105) is slidably installed across the guide rail (103) and the slide table (104). A linear bearing (106) is also installed on the suction cup mounting base (105). A guide shaft (107) is slidably installed on the linear bearing (106). The lower end of the guide shaft (107) is fixedly installed on the guide shaft base plate (110). The extension shaft of the lifting cylinder (108) is fixedly installed on the guide shaft base plate (110). A suction cup base plate (111) is fixedly installed below the guide shaft base plate (110).

3. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: An adjustment platform base (202) is fixedly installed on the base (201) of the vision unit (2); a fine-tuning platform (204) is fixedly installed on the adjustment platform base (202).

4. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: A heat insulation support frame (402) is fixedly installed on the stacking base (401) of the stacking platform unit (4); a heat insulation plate (403) is fixedly installed on the heat insulation support frame (402), and a heating plate (404) is fixedly installed on the heat insulation plate (403).

5. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: The voltage adjustment range of the upper static electricity generating unit (113) is 20,000 to 50,000 volts, and the voltage adjustment range of the lower static electricity generating unit (3) is 20,000 to 50,000 volts.

6. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: The first suction cup (112), the second suction cup (206), and the third suction cup (405) are made of porous non-metallic materials.

7. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: The vertical distance between the upper electrostatic generating unit (113) and the third suction cup (405) is less than or equal to 20 mm; the vertical distance between the lower electrostatic generating unit (3) and the first suction cup (112) is less than or equal to 20 mm.

8. A device for stacking green ceramic sheets using electrostatic adsorption according to claim 1 or 2, characterized in that: The heating temperature range of the heating plate (404) is 25℃~80℃.

9. A method for stacking raw ceramic tiles using electrostatic adsorption, characterized in that: Includes the following steps: S1: Place the first piece of raw ceramic tile on the second suction cup (206) of the visual unit (2), and the fine-tuning platform (204) adjusts the position of the raw ceramic tile according to the fine-tuning parameters given by the camera assembly (203); S2: The transport unit (1) drives the suction cup mounting base (105) to move above the vision unit (2), and the lifting cylinder (108) drives the first suction cup (112) to descend and pick up the first piece of raw ceramic on the second suction cup (206); S3: The transport unit (1) transports the first piece of raw ceramic tile to the stacking platform unit (4) and the third suction cup (405) completes the adsorption; S4: Place the second piece of raw ceramic tile on the second suction cup (206) of the visual unit (2), and the fine-tuning platform (204) adjusts the position of the raw ceramic tile according to the fine-tuning parameters given by the camera assembly (203); S5: The transport unit (1) drives the suction cup mounting base (105) to move above the vision unit (2), and the lifting cylinder (108) drives the first suction cup (112) to descend and pick up the second piece of raw ceramic tile on the second suction cup (206). S6: When the transport unit (1) drives the suction cup mounting base (105) to move past the lower electrostatic generator unit (3), the lower electrostatic generator unit (3) sprays negatively charged plasma onto the surface of the second green ceramic tile; at the same time, when the suction cup mounting base (105) passes the stacking platform unit (4), the upper electrostatic generator unit (113) sprays positively charged plasma onto the first green ceramic tile adsorbed by the third suction cup (405); S7: The transport unit (1) transports and places the second green ceramic tile on the stacking platform unit (4). At this time, the first green ceramic tile and the second green ceramic tile are tightly attached due to the attraction between opposite poles. Proceed through steps S4 to S7 in sequence to complete the stacking of the remaining raw ceramic pieces.

10. A method for stacking green ceramic tiles using electrostatic adsorption according to claim 9, characterized in that: The moving speed of the suction cup mounting base (105) when passing through the stacking platform unit (4) is less than or equal to 20 mm / s, and the moving speed of the suction cup mounting base (105) when passing through the lower electrostatic generation unit (3) is less than or equal to 20 mm / s.

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