Conversion device and coating equipment

Abstract

The utility model discloses a conversion device and coating equipment, the conversion device comprises a conveying mechanism and a conversion mechanism, and the conveying mechanism comprises a first conveying assembly and a second conveying assembly which are oppositely arranged in the vertical direction. The changing mechanism comprises a lifting driving unit and a lifting piece connected with the lifting driving unit, and the lifting piece is used for changing the positions of the carriers on the first conveying assembly and the second conveying assembly. According to the conversion device, the first conveying assembly and the second conveying assembly are located above and below the film coating mechanism correspondingly, so that the film coating mechanism conducts film coating on the sheet materials in the vertical direction at the same time. The carrier is translated through the conversion mechanism, so that the top surface and the bottom surface of each sheet material face the coating mechanisms respectively, the two coating mechanisms face the sheet material together to carry out double-sided coating, and on the premise that the sheet material does not need to be turned over, the two sides of the sheet material face the two coating mechanisms respectively; and therefore, the effect of quickly carrying out double-sided coating is achieved.

Description

Technical Field

[0001] The present application relates to the field of solar cell preparation, and in particular to a conversion device and a coating device. Background Art

[0002] When preparing solar cells, a copper seed layer is usually deposited on a sheet material by a PVD (Physical Vapor Deposition) process to prepare an electrode. Specifically, the sheet material is placed on a carrier, and then the carrier with the sheet material is placed in a process chamber. When coating the sheet material, it is necessary to coat both sides of the sheet material. When coating the sheet material using existing coating equipment, it is necessary to remove the cell after coating on one side, flip the sheet material, restart the equipment, and then coat the other side of the sheet material, resulting in low processing efficiency. Utility Model Content

[0003] In view of this, the present application provides a conversion device, which exchanges the positions of the upper and lower sheet materials by lifting and lowering, thereby changing the orientation of the upper and lower sheet materials, so as to meet the purpose of the coating equipment to quickly perform double-sided coating on the sheet materials.

[0004] The present application provides a transformation device including: a conveying mechanism and a transformation mechanism. The conveying mechanism includes a first conveying assembly and a second conveying assembly arranged up and down, the first conveying assembly is used to convey the carrier along a specified direction so that an external coating mechanism can coat the lower surface of the sheet material, and the second conveying assembly is used to convey the carrier along a specified direction so that an external coating mechanism can coat the upper surface of the sheet material. The transformation mechanism includes a lifting drive unit and a lifting member connected to the lifting drive unit, and the lifting drive unit is configured to drive the lifting member to lift and move between the first conveying assembly and the second conveying assembly. The lifting member is used to move the carrier on the first conveying assembly to the second conveying assembly, or to move the carrier on the second conveying assembly to the first conveying assembly.

[0005] In the above embodiment, the first conveying assembly is located above the external coating mechanism. The second conveying assembly is located below the coating mechanism, so that each coating mechanism can coat the sheet material in the upper and lower directions at the same time, thereby improving the working efficiency of the coating mechanism. By transforming the mechanism to translate the carrier, the top and bottom surfaces of each sheet material are respectively facing the coating mechanism, so that the two coating mechanisms are jointly facing the sheet material for double-sided coating. Without turning over the sheet material, the two sides of the sheet material are respectively facing the two coating mechanisms, thereby quickly achieving the effect of double-sided coating of the sheet material.

[0006] In some embodiments, when the lifting member lifts the carrier up or down, the first conveying assembly avoids the carrier in the up and down directions. Or, in the up and down directions, the first conveying assembly avoids the carrier, and the second conveying assembly avoids the lifting member and the carrier.

[0007] In some embodiments, the first conveying assembly includes telescopic rollers, and all the telescopic rollers can move in the left-right direction to avoid the lifting member and the carrier in the up-down direction. Or the first conveying assembly and the second conveying assembly both include telescopic rollers, and all the telescopic rollers of the first conveying assembly and the second conveying assembly can move in the left-right direction to avoid the lifting member and the carrier in the up-down direction.

[0008] In some embodiments, the number of telescopic rollers of the first conveying assembly and / or the second conveying assembly is at least two.

[0009] In some embodiments, the first conveying assembly further includes a conveying roller, and all the telescopic rollers are located between two conveying rollers adjacent to each other. Or the first conveying assembly further includes a conveying roller, and all the telescopic rollers of the first conveying assembly are located between two conveying rollers adjacent to each other to each other. The second conveying assembly further includes a conveying roller, and all the telescopic rollers of the second conveying assembly are located between two conveying rollers adjacent to each other to each other to each other.

[0010] In some embodiments, the conversion device further comprises two mounting parts arranged opposite to each other, and the lifting drive unit, the first transmission assembly and the second transmission assembly are respectively arranged on the two mounting parts. The first transmission assembly and the second transmission assembly respectively transmit the carrier from front to back between the two mounting parts.

[0011] In some embodiments, each mounting member is provided with a lifting slot, and the lifting member is inserted into the lifting slot along the left-right direction and extends between the two mounting members.

[0012] In some embodiments, the telescopic rollers of a part of the first conveying assembly are located on one of the mounting parts, the telescopic rollers of another part of the first conveying assembly are located on another mounting part, and all the telescopic rollers of the first conveying assembly can move away from the two mounting parts in the left and right directions. Or the telescopic rollers of a part of the first conveying assembly are located on one of the mounting parts, the telescopic rollers of another part of the first conveying assembly are located on another mounting part, and all the telescopic rollers of the first conveying assembly can move away from the two mounting parts in the left and right directions. The telescopic rollers of a part of the second conveying assembly are located on one of the mounting parts, the telescopic rollers of another part of the second conveying assembly are located on another mounting part, and all the telescopic rollers can move away from the two mounting parts in the left and right directions.

[0013] In some embodiments, the carrier is provided with guide grooves on opposite sides in the left and right directions, and each guide groove is provided through the front-back direction. Part of the first transmission component can be located in each guide groove. Part of the second transmission component can be located in each guide groove.

[0014] In some embodiments, a transformation mechanism is provided in the cache area, and the transformation mechanism in the cache area and the transformation mechanism in the transformation area are respectively used to move the carrier on the first conveying component to the second conveying component or to move the carrier on the second conveying component to the first conveying component.

[0015] A coating device comprises at least two coating mechanisms and the above-mentioned conversion device. At least one coating mechanism is located in front of the conversion mechanism, and the remaining coating mechanisms are located behind the conversion mechanism. In the vertical direction, all coating mechanisms are located between the first conveyor assembly and the second conveyor assembly. Each coating mechanism is used to coat the sheet material on the first conveyor assembly and the second conveyor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A side view of a coating device provided in one embodiment of the present application.

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of part of the coating device.

[0018] Figure 3a to Figure 3c for Figure 1 Schematic diagram of the process of changing the position of a carrier within a coating device.

[0019] Figure 4 for Figure 2 Schematic diagram of part of the structure in the transformation area of ​​the coating device.

[0020] Figure 5 for Figure 2 A partial enlarged view of point A in the middle.

[0021] Figure 6 A side view of a transformation area of ​​a coating device of a coating equipment provided in another embodiment of the present application.

[0022] Figure 7 for Figure 1 A partial enlarged view of point B in the middle.

[0023] Figures 8a to 8c for Figure 1 Schematic diagram of the process of changing the position of a carrier within a coating device.

[0024] Fig. 9 A schematic diagram of the working status of a coating device provided in another embodiment of the present application.

[0025] Main component symbols

[0026] Coating equipment 100

[0027] Feeding mechanism 1

[0028] Feeding mechanism 2

[0029] Vehicle 3

[0030] Guide groove 31

[0031] Coating device 4

[0032] Cavity 41

[0033] The first coating area 411

[0034] Transformation area 412

[0035] The second coating area 413

[0036] Cache area 414

[0037] Heating area 415

[0038] Cooling area 416

[0039] Front transition area 417

[0040] Rear transition area 418

[0041] Mounting 419

[0042] Lifting slot 4191

[0043] Conveying mechanism 42

[0044] The first conveying component 421

[0045] The second conveying assembly 422

[0046] Conveyor roller 420

[0047] Telescopic roller 4201

[0048] Coating mechanism 43

[0049] Target 431

[0050] Magnetic Pole 432

[0051] Upper magnetic area 433

[0052] Lower magnetic area 434

[0053] Transformation mechanism 44

[0054] Lifting parts 441

[0055] Sealing mechanism 45

[0056] Heating element 46

[0057] Cooling assembly 47 DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0059] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0060] The terms "first", "second", etc. are only used to distinguish different objects and shall not be understood as indicating or implying relative importance or implying the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0062] Some embodiments of the present application will be described below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0063] In the accompanying drawings, the up-down direction is parallel to the direction of gravity, and the left-right direction and the front-back direction are all horizontal directions.

[0064] In some embodiments, see Figure 1 The present application discloses a coating device 100, comprising a loading mechanism 1, a unloading mechanism 2, a carrier 3 and a coating device 4. The carrier 3 is used to carry a sheet material (not shown). The coating device 4 has two opposite ends in the front-to-back direction. The loading mechanism 1 is arranged in front of the coating device 4 to load the carrier 3 toward the coating device 4, so that the coating device 4 performs double-sided coating on the sheet material on the carrier 3. After the sheet material is coated, the unloading mechanism 2 arranged at the rear of the coating device 4 removes the carrier 3 from the coating device 4, thereby achieving the effect of the coating device 100 automatically coating the sheet material on both sides, thereby improving the production efficiency of the sheet material.

[0065] In some embodiments, the sheet material is a photovoltaic material such as a cell or silicon wafer. In some embodiments, before the coating device 100 works, the cavity 41 is evacuated to reduce the risk of air reacting with the sheet material, which helps to improve the production quality of the sheet material.

[0066] In some embodiments, the loading mechanism 1 and the unloading mechanism 2 are both manipulators or robots.

[0067] In some embodiments, see Figure 1 The coating device 4 includes a cavity 41, a conveying mechanism 42, a coating mechanism 43 and a conversion mechanism 44. By forming a low pressure in the cavity 41 and accommodating the carrier 3, the interference of the atmosphere on the sheet material on the carrier 3 is eliminated, thereby meeting the coating requirements of the sheet material. The cavity 41 extends in the front-to-back direction, and the cavity 41 is provided with a first coating area 411, a conversion area 412 and a second coating area 413 from front to back. The conveying mechanism 42 is placed in the cavity 41 and passes through the first coating area 411, the conversion area 412 and the second coating area 413 in sequence. The conveying mechanism 42 includes a first conveying component 421 and a second conveying component 422 arranged opposite to each other in the up-down direction. The first conveying component 421 is located above the second conveying component 422. The first conveying component 421 and the second conveying component 422 are used to convey the carrier 3 respectively. The coating mechanisms 43 are respectively arranged in the first coating area 411 and the second coating area 413. The two coating mechanisms 43 are respectively oriented toward the bottom of the carrier 3 on the first conveying assembly 421 and the top of the carrier 3 on the second conveying assembly 422. Each coating mechanism 43 is used to coat the sheet material on the carrier 3 on the first conveying assembly 421 and the second conveying assembly 422. The conversion mechanism 44 is arranged in the conversion area 412, and is used to exchange the positions of the carriers 3 on the first conveying assembly 421 and the second conveying assembly 422.

[0068] During operation, the first conveying component 421 and the second conveying component 422 respectively convey the carrier 3 from front to back through the first coating area 411, and the coating mechanism 43 located in the first coating area 411 coats the bottom surface of the sheet material on the first conveying component 421 and the top surface of the sheet material on the second conveying component 422 respectively.

[0069] After the coating mechanism 43 in the first coating area 411 finishes coating the sheet material, the first conveyor assembly 421 and the second conveyor assembly 422 respectively convey the carrier 3 through the conversion area 412. The conversion mechanism 44 translates the carrier 3 that has passed through the first coating area 411 and is located on the first conveyor assembly 421 to the second conveyor assembly 422, and the conversion mechanism 44 also translates the carrier 3 that has passed through the first coating area 411 and is located on the second conveyor assembly 422 to the first conveyor assembly 421, so that the carriers 3 on the first conveyor assembly 421 and the second conveyor assembly 422 are interchanged.

[0070] After the carrier 3 on the first conveying component 421 and the second conveying component 422 are swapped, the first conveying component 421 and the second conveying component 422 respectively convey the carrier 3 through the second coating area 413, and the coating mechanism 43 located in the second coating area 413 coats the bottom surface of the sheet material on the first conveying component 421 that has completed the top surface coating, and at the same time coats the top surface of the sheet material on the second conveying component 422 that has completed the bottom surface coating, thereby achieving the effect of double-sided coating of the sheet material.

[0071] In the present application, the cavity 41 is arranged in a straight line so that the coating mechanisms 43 are evenly distributed along the straight line, thereby ensuring the uniformity of the coating mechanisms 43 coating the sheet material, and the coating mechanisms 43 are located between the first conveying assembly 421 and the second conveying assembly 422, so that each coating mechanism 43 can simultaneously coat the sheet material in the up and down directions, thereby improving the space utilization of the cavity 41. The carrier 3 is translated by the transformation mechanism 44, so that the top and bottom surfaces of each sheet material are respectively facing the coating mechanism 43, so that the two coating mechanisms 43 are jointly facing the sheet material for double-sided coating, and the area of ​​the coating mechanism 43 coating the sheet material is increased without increasing the number of carriers 3, the width and the length of the carrier 3, thereby improving the efficiency of the coating device 4 in coating the sheet material.

[0072] In addition, when the flipping carrier 3 is adopted so that the top and bottom surfaces of the sheet material are respectively facing the coating mechanism 43, since the flipping radius of the carrier 3 is too large, the inner diameter of the cavity 41 needs to be increased accordingly to meet the flipping requirement of the carrier 3. Increasing the inner diameter of the cavity 41 will cause a series of changes in the uniformity of vacuum, temperature uniformity, target material 431 coating uniformity, magnetic field uniformity, gas distribution flow uniformity, etc., and it is impossible to maintain the stability of the coating device 4 for the sheet material. When the conversion mechanism 44 of the present application is adopted to translate the carrier 3 so that the top and bottom surfaces of the sheet material are respectively facing the coating mechanism 43, without changing the inner diameter of the cavity 41, the various parameters in the cavity 41 can be kept unchanged to maintain the stability of the coating device 4 for the sheet material. In addition, relative to the direction of flipping the carrier 3, the translation of the carrier 3 can avoid the risk of the sheet material falling off the carrier 3 during the flipping process of the carrier 3, thereby improving the stability of the carrier 3 in carrying the sheet material.

[0073] In some embodiments, see Figure 1 and Figure 2 The first conveying assembly 421 and the second conveying assembly 422 each include a first driving unit (not shown) and a plurality of conveying rollers 420, the conveying rollers 420 are used to carry the carrier 3, and the conveying rollers 420 of the first conveying assembly 421 and the second conveying assembly 422 are arranged at intervals along the front-to-back direction. The first driving unit is respectively connected to all the corresponding conveying rollers 420 to drive the conveying rollers 420 to rotate.

[0074] The first driving unit of the first conveying assembly 421 or the second conveying assembly 422 drives all the corresponding conveying rollers 420 to rotate, so as to achieve the purpose of the first conveying assembly 421 and the second conveying assembly 422 to convey the carrier 3 respectively. In addition, the conveying rollers 420 are arranged at intervals, and the gap on the first conveying assembly 421 or the second conveying assembly 422 can be increased compared with the conveyor belt method, so as to reduce the obstruction of the first conveying assembly 421 and the second conveying assembly 422 to the cavity 41, so as to facilitate the uniform distribution of gas in the cavity 41.

[0075] In other embodiments, the first conveying assembly 421 and the second conveying assembly 422 include a mesh conveyor belt (not shown) and a first driving unit for driving the mesh conveyor belt to rotate. While the carrier 3 is conveyed by the mesh conveyor belt, the purpose of gas freely passing through the conveyor belt can be met.

[0076] In some embodiments, see Figure 2 and Figure 3a to Figure 3c ,in, Figure 3a to Figure 3c The vehicle 3 in the middle dashed line represents the vehicle 3 before moving, and the vehicle 3 is Figure 3a-3c Move in order, Figure 3aIt indicates that the carrier 3 of the first conveying assembly 421 in the conversion area 412 is transferred to the second conveying assembly 422 . Figure 3b Indicates that the second conveying assembly 422 conveys the carrier 3 in the transformation area 412 backwards to vacate the position below the first conveying assembly 421 in the transformation area 412, and at the same time, the first conveying assembly 421 conveys the carrier 3 into the transformation area 412; Figure 3c It means that after the second conveying assembly 422 conveys the carrier 3 to the transformation area 412, the carrier 3 is transferred to the first conveying assembly 421. The transformation mechanism 44 includes a lifting drive unit (not shown) and a lifting member 441 connected to the lifting drive unit, and the lifting drive unit is configured to drive the lifting member 441 to move up and down between the first conveying assembly 421 and the second conveying assembly 422. When the first conveying assembly 421 conveys the carrier to the transformation area 412, the lifting member 441, driven by the lifting drive unit, lifts the carrier 3 conveyed by the first conveying assembly 421, and moves the carrier 3 on the first conveying assembly 421 downward to the bearing surface of the second conveying assembly 422 (not shown, that is, the bottom surface of the carrier 3 and the top surface of the conveying roller 420 of the second conveying assembly 422 are located in the same plane), and the second conveying assembly 422 conveys the carrier 3 transferred by the lifting member 441 backward, or the lifting member 441 directly conveys the carrier 3 to the rear of the second conveying assembly 422 to vacate the position above the lifting member 441. The second transmission assembly 422 then transmits the carrier 3 to the top of the lifting member 441, and the lifting member 441 moves the carrier 3 transmitted by the second transmission assembly 422 upward to the bearing surface of the first transmission assembly 421 (not shown, that is, the bottom surface of the carrier 3 and the top surface of the transmission roller 420 of the first transmission assembly are located in the same plane), so that the conversion mechanism 44 achieves the purpose of exchanging the position of the carrier 3 on the first transmission assembly 421 and the second transmission assembly 422. The lifting drive unit is a power device that outputs reciprocating force, such as a linear motor, an electric pusher, or a cylinder.

[0077] In other embodiments, the lifting drive unit first lifts and moves the carrier 3 on the second conveying component 422 to the bearing surface of the first conveying component 421, and the first conveying component 421 conveys the carrier 3 transferred by the lifting member 441 backward, or the lifting member 441 directly transfers the carrier 3 to the rear of the first conveying component 421 to vacate the position above the lifting member 441. The first conveying component 421 then transfers the carrier 3 to the top of the lifting member 441, and the lifting member 441 lifts and moves the carrier 3 transferred by the first conveying component 421 to the bearing surface of the second conveying component 422, thereby achieving the purpose of the conversion mechanism 44 exchanging the positions of the carriers 3 on the first conveying component 421 and the second conveying component 422.

[0078] In some embodiments, see Figure 2When the lifting member 441 is lifted or lowered, the second conveying assembly 422 avoids the lifting member 441 in the vertical direction. Specifically, the lifting member 441 is staggered with the conveying roller 420 of the second conveying assembly 422 in the vertical direction, so that the lifting member 441 can pass through the second conveying assembly 422 and descend to the bottom of the second conveying assembly 422 to place the carrier 3 on the conveying roller 420 of the second conveying assembly 422. In order to prevent the conveying roller 420 of the first conveying assembly 421 from blocking the carrier 3 during the lifting and lowering movement, the conveying roller 420 of the first conveying assembly 421 located in the conversion area 412 can move toward the outside of the cavity 41 in the left-right direction, so that the first conveying assembly 421 avoids the carrier 3 in the vertical direction, so that the lifting member 441 can lift the carrier 3 to pass through the first conveying assembly 421 for lifting and lowering movement.

[0079] In some embodiments, see Figure 2 The first conveying assembly 421 also includes at least two telescopic rollers 4201 located on the left and right sides of the transformation area 412, and all the telescopic rollers 4201 are located between two adjacent conveying rollers 420 in front and behind. When the carrier 3 is conveyed toward the transformation area 412 by the first conveying assembly 421, the conveying roller 420 conveys the carrier 3 to the telescopic roller 4201. After the lifting member 441 lifts the carrier 3 on the telescopic roller 4201, the shorter telescopic rollers 4201 on the left and right sides move to the left or right respectively, which can reduce the moving distance of the telescopic roller 4201 compared to the left and right movement of the entire longer telescopic roller 4201. While the telescopic roller 4201 avoids the carrier 3, the telescopic roller 4201 can be telescopically moved in the cavity 41 with a smaller space.

[0080] In some embodiments, the telescopic roller 4201 rotates under the action of an external force, so that the lifting member 441 lifts the carrier 3 on the second conveying assembly 422 and moves upward toward the first conveying assembly 421, and after the telescopic roller 4201 supports the carrier 3, the telescopic roller 4201 conveys the carrier 3 backward, thereby achieving the effect that the first conveying assembly 421 continues to convey the carrier 3 toward the second coating area 413.

[0081] In some embodiments, see Figure 4 The lifting member 441 is a block-shaped or plate-shaped component, and the top surface of the lifting member 441 can contact the bottom surface of the carrier 3.

[0082] In some embodiments, see Figure 2 and Figure 5The carrier 3 is a plate-like member hollowed out at the top and bottom. The left and right sides of the carrier 3 are both provided with guide grooves 31 in the front-to-back direction. All the conveying rollers 420 of the first conveying assembly 421 are two shorter conveying rollers 420 arranged on the left and right sides. The carrier 3 is located between the conveying rollers 420 on the left and right sides of the first conveying assembly 421. The conveying rollers 420 can partially extend into the guide grooves 31. The conveying rollers 420 are limited up and down by the guide grooves 31 to reduce the risk of the carrier 3 falling from the first conveying assembly 421, thereby improving the stability of the first conveying assembly 421 and the second conveying assembly 422 in conveying the carrier 3.

[0083] In some embodiments, see Figure 2 and Figure 4 The second conveying component 422 and the first conveying component 421 both include at least two telescopic rollers 4201 located on the left and right sides of the transformation area 412. The telescopic rollers 4201 of the second conveying component 422 are the same as the telescopic rollers 4201 of the first conveying component 421. Therefore, after the second conveying component 422 conveys the carrier 3 to the transformation area 412, the lifting member 441 lifts the carrier 3, and the telescopic rollers 4201 on the left and right sides of the second conveying component 422 move away from the carrier 3 to the left or right respectively and separate from the carrier 3, thereby enabling the second conveying component 422 to avoid the carrier 3, so that the lifting member 441 can move the carrier 3 from the second conveying component 422 toward the first conveying component 421.

[0084] In some embodiments, see Figure 2 and Figure 4 , the left and right sides of the cavity 41 are respectively provided with mounting members 419. The mounting members 419 are plate-shaped components, and the conveying rollers 420 of the first conveying assembly 421 and the second conveying assembly 422 are respectively provided on the mounting members 419, and the carrier 3 moves between the two mounting members 419. In the conversion area 412, the mounting members 419 are provided with lifting grooves 4191 in the up-down direction for the lifting members 441 to pass through, and the lifting drive units are provided at the leftmost and rightmost sides of the two mounting members 419, and a part of the lifting member 441 extends from the outside of the mounting members 419 to between the two mounting members 419.

[0085] In other embodiments, the lifting drive unit is located below the cavity 41, and the lifting member 441 overlaps with the telescopic rollers 4201 of the first conveying component 421 and the second conveying component 422 in the up and down directions (not shown), and moves toward the outside of the cavity 41 through the telescopic rollers 4201 and away from the lifting member 441 in the left and right directions, thereby avoiding the lifting member 441 to achieve the purpose of the lifting member 441 lifting and moving the carrier 3.

[0086] In other embodiments, see Figure 6The lifting member 441 is a roller-shaped member, and all the lifting members 441 are located between two adjacent conveying rollers 420 of the first conveying assembly 421 and the second conveying assembly 422. The transformation mechanism 44 further includes a second driving unit (not shown), which is connected to the lifting member 441 and the lifting driving unit, respectively, and is used to drive the lifting member 441 to rotate.

[0087] Before the first conveying component 421 or the second conveying component 422 conveys the carrier 3 to the transformation area 412, the lifting drive unit drives the second drive unit and the lifting member 441 to move up and down so that the lifting member 441 and the first conveying component 421 or the second conveying component 422 are located in the same plane, and the first conveying component 421 or the second conveying component 422 conveys the carrier 3 toward the lifting member 441. When the lifting member 441 contacts the carrier 3, the second drive unit drives the lifting member 441 to rotate so that the lifting member 441 conveys the carrier 3 to move until the carrier 3 is separated from the first conveying component 421 or the second conveying component 422, thereby achieving the lifting of the carrier 3 by the lifting member 441. The lifting drive unit then drives the second drive unit and the lifting member 441 to move up and down, so that the lifting member 441 drives the carrier 3 to rise or fall, until the lifting member 441 and the first conveying assembly 421 or the second conveying assembly 422 are located in the same plane, and then the second drive unit drives the lifting member 441 to rotate, and the lifting member 441 conveys the carrier 3 to the first conveying assembly 421 or the second conveying assembly 422. The conversion mechanism 44 then works in a cycle in sequence to achieve the purpose of exchanging the positions of the carriers 3 on the first conveying assembly 421 and the second conveying assembly 422.

[0088] When the guide slots 31 are provided on both sides of the carrier 3, the lifting members 441 are distributed on both sides of the transformation area 412. When the first conveying assembly 421 or the second conveying assembly 422 conveys the carrier 3 toward the lifting members 441, the lifting members 441 partially extend into the guide slots 31.

[0089] In other embodiments, the structures of the lifting component 441, the first conveying component 421 and the second conveying component 422 are not limited thereto. By the first conveying component 421 avoiding the carrier 3 and the second conveying component 422 avoiding the lifting component 441, the lifting component 441 can transfer the carrier 3 on the first conveying component 421 to the second conveying component 422 and transfer the carrier 3 on the second conveying component 422 to the first conveying component 421.

[0090] In some embodiments, when the coating device 4 of the present application is used to perform single-sided coating on a sheet material, when the carrier is conveyed through the transformation area 412, the transformation mechanism 44 stops working so that the positions of the carriers 3 on the first conveying component 421 and the second conveying component 422 are not swapped.

[0091] In some embodiments, see Figure 7 Each coating mechanism 43 includes at least one target 431 extending in the left-right direction. The target 431 is a cylindrical structure with an axis parallel to the left-right direction. A plurality of magnetic poles 432 are arranged in the target 431. A part of the magnetic poles 432 forms an upper magnetic region 433 above the target 431, and another part of the magnetic poles 432 forms a lower magnetic region 434 below the target 431. When the reaction gas is introduced into each coating region, the upper magnetic region 433 and the lower magnetic region 434 provide magnetic forces respectively to enable the target 431 to bombard the sheet materials on the first conveying assembly 421 and the second conveying assembly 422 for coating, thereby achieving the purpose of coating the sheet materials by the coating mechanism 43.

[0092] In some embodiments, see Figure 1 There are multiple coating mechanisms 43 in the first coating area 411 and the second coating area 413, and the multiple coating mechanisms 43 are distributed in sequence along the front-to-back direction, thereby extending the working range of the coating mechanisms 43 in the front-to-back direction. In this way, when the first conveying component 421 and the second conveying component 422 continuously convey the carrier 3 in the first coating area 411 and the second coating area 413, the multiple coating mechanisms 43 can continuously coat the sheet material, thereby improving the coating efficiency of the coating device 4 on the sheet material.

[0093] In some embodiments, see Figure 1 The coating device 4 also includes a sealing mechanism 45 arranged in the cavity 41, and the sealing mechanism 45 is respectively located in front of and behind the first coating area 411 and in front of and behind the second coating area 413. When the first conveying component 421 and the second conveying component 422 respectively send the carrier 3 into the first coating area 411 and the second coating area 413, the sealing mechanism 45 seals the first coating area 411 and the second coating area 413 respectively, so that the first coating area 411 and the second coating area 413 form a closed environment, so that when the reaction gas is introduced into the first coating area 411 and the second coating area 413 for coating, it can prevent the reaction gas from diffusing toward other areas.

[0094] In some embodiments, see Figure 1 and Figure 2 The cavity 41 also includes a buffer area 414, and the first conveying assembly 421 and the second conveying assembly 422 pass through the buffer area 414 respectively.

[0095] Before the first conveyor assembly 421 and the second conveyor assembly 422 respectively deliver the carrier 3 to the second coating area 413, since the conversion mechanism 44 can only sequentially exchange the positions of the carriers 3 on the first conveyor assembly 421 and the second conveyor assembly 422, at this time, it is necessary to move the carrier 3 that has completed the position exchange first backward to the buffer area 414 to vacate the space above the lifting member 441, and then use the lifting member 441 to exchange the position of another carrier 3, and finally move the other carrier 3 that has completed the position exchange to the buffer area 414, and pass through the first carrier 3 in the buffer area 414. The carrier 3 of the conveying component 421 and the second conveying component 422 overlap in the up and down directions to ensure that the carrier 3 of the first conveying component 421 and the second conveying component 422 are located at the same position. When the sealing mechanism 45 is opened, the carrier 3 of the first conveying component 421 and the second conveying component 422 can enter the second coating area 413 at the same time, thereby ensuring that the coating mechanism 43 in the second coating area 413 can simultaneously coat the sheet materials on the two carriers after the position is changed, so as to achieve the purpose of the coating mechanism 43 being able to uniformly coat different sheet materials.

[0096] In some embodiments, see Figure 2 and Figures 8a to 8c ,in Figures 8a to 8c The vehicle 3 in the middle dashed line represents the vehicle 3 before moving, and the vehicle 3 is Figure 8a-8c Move in order, Figure 8a It indicates that the second conveying component 422 conveys the carrier 3 in the transformation area 412 toward the buffer area 414 to vacate the position below the first conveying component 421 in the transformation area 412 . Figure 8b It indicates that the carrier 3 of the first conveying assembly 421 in the transformation area 412 is transferred to the second conveying assembly 422, and at the same time, the carrier 3 located in the second conveying assembly 422 in the buffer area 414 is transferred to the first conveying assembly 421 to vacate the position behind the second conveying assembly 422 in the transformation area 412; Figure 8cIt indicates that the second conveying assembly 422 conveys the carrier 3 in the conversion area 412 toward the buffer area 414, and makes the two carriers 3 in the buffer area 414 overlap in the vertical direction. A lifting drive unit and a lifting member 441 connected to the lifting drive unit are provided in the buffer area 414, and the lifting drive unit (not shown) and the lifting member 441 connected to the lifting drive unit in the buffer area 414 are consistent with the lifting drive unit (not shown) and the lifting member 441 connected to the lifting drive unit in the conversion area 412. The lifting parts 441 in the buffer area 414 and the lifting parts 441 in the conversion area 412 respectively lift the carriers 3 on the first conveying component 421 and the second conveying component 422 to rise or fall, so as to achieve the purpose of simultaneously exchanging the positions of the two carriers 3. When the positions of the two carriers 3 are exchanged, the carrier 3 in the conversion area 412 is transferred to the buffer area 414. When the two carriers 3 overlap in the buffer area 414, the first conveying component 421 and the second conveying component 422 transfer the two carriers 3 to the second coating area 413 at the same time, so as to achieve that the coating mechanism 43 in the second coating area 413 can simultaneously coat the sheet materials on the two carriers after the positions are changed.

[0097] In other embodiments, two groups of lifting drive units and lifting members 441 connected to the lifting drive units, i.e., two transformation mechanisms 44, are arranged in the front and rear of the transformation area 412. The lifting members 441 of the two transformation mechanisms 44 respectively lift the carriers 3 on the first conveying assembly 421 and the second conveying assembly 422 to rise or fall, thereby achieving the purpose of simultaneously exchanging the positions of the two carriers 3. In addition, the two transformation mechanisms 44 are used to buffer the two carriers 3, so that the two carriers 3 overlap up and down, and the first conveying assembly 421 and the second conveying assembly 422 simultaneously convey the two carriers 3 to the second coating area 413, thereby achieving that the coating mechanism 43 in the second coating area 413 can simultaneously coat the sheet materials on the two carriers after the positions are changed.

[0098] In some embodiments, see Figure 1 The coating device 4 further includes a heating component 46. A heating area 415 is further provided in the cavity 41. The heating area 415 is located in front of the first coating area 411. The heating component 46 is located in the heating area 415. Before the carrier 3 passes through the heating area and enters the first coating area 411, the sheet material on the carrier 3 is preheated by the heating component 46. After the carrier 3 enters the first coating area 411, the coating mechanism 43 can quickly coat the sheet material on the carrier 3, which helps to improve the production efficiency of the sheet material. In some embodiments, please refer to Figure 1The heating component 46 is also disposed in the first coating area 411, the conversion area 412, the buffer area 414 and the second coating area 413, so as to achieve the purpose of the heating component 46 continuously heating the sheet material to be coated.

[0099] In some embodiments, the heating assembly 46 includes an electric heating wire.

[0100] In some embodiments, see Figure 1 The coating device 4 also includes a cooling component 47. A cooling area 416 is also provided in the cavity 41. The cooling area 416 is located behind the second coating area 413. The cooling component 47 is located in the cooling area 416. The sheet material after coating is cooled by the cooling component 47. When the sheet material is conveyed out of the cavity 41, the risk of the sheet material reacting with the external air is reduced.

[0101] In some embodiments, the cooling component 47 is a cooling fin or a cooling pipe with a refrigerant. Figure 1 The cavity 41 further includes a front transition area 417 and a rear transition area 418. The front transition area 417 is located at the front of the cavity 41, and the rear transition area 418 is located at the rear of the cavity 41. Sealing mechanisms 45 are also provided in front and rear of the front transition area 417 and the rear transition area 418. The sealing mechanisms 45 of the front transition area 417 and the rear transition area 418 are consistent with the sealing mechanisms 45 of the transformation area 412. When the sheet material begins to enter the cavity 41, the sealing mechanism 45 at the rear of the front transition area 417 is closed, and the sealing mechanism 45 at the front of the front transition area 417 is opened, so that the carrier 3 is conveyed into the front transition area 417. After the carrier 3 completely enters the front transition area 417, the sealing mechanism 45 at the front of the front transition area 417 is closed, and the sealing mechanism 45 at the rear of the front transition area 417 is opened, so that the carrier 3 is further conveyed into the cavity 41. By switching the sealing mechanisms 45 in front and behind the front transition area 417 in sequence, when the carrier 3 enters the cavity 41, only the front transition area 417 in the cavity 41 is connected to the outside, that is, as long as the vacuum degree of the front transition area 417 is destroyed, it helps to reduce the change in the vacuum degree in the cavity 41, thereby maintaining the stability of the coating device 4 in coating the sheet material and achieving energy-saving effects.

[0102] Similarly, when the sheet material begins to be sent out of the cavity 41, the sealing mechanism 45 at the rear of the rear transition area 418 is closed, and the sealing mechanism 45 at the front of the rear transition area 418 is opened, so that the carrier 3 is conveyed into the rear transition area 418. After the carrier 3 completely enters the rear transition area 418, the sealing mechanism 45 at the front of the rear transition area 418 is closed, and the sealing mechanism 45 at the rear of the rear transition area 418 is opened, so that the carrier 3 is further conveyed out of the cavity 41.

[0103] In some embodiments, the sealing mechanism 45 includes a sealing plate, a sealing cover, or a sealing door.

[0104] In this application, the working process of the coating device 4 is as follows:

[0105] The first side is coated, the first conveying component 421 and the second conveying component 422 respectively convey the carrier 3 through the first coating area 411, and the coating mechanism 43 located in the first coating area 411 coats the bottom surface of the sheet material on the first conveying component 421 and the top surface of the sheet material on the second conveying component 422 respectively.

[0106] Position change: after the coating mechanism 43 in the first coating area 411 completes coating, the first conveyor assembly 421 and the second conveyor assembly 422 respectively convey the carrier 3 through the conversion area 412. The conversion mechanism 44 translates the carrier 3 after passing through the first coating area 411 on the first conveyor assembly 421 to the second conveyor assembly 422, and the conversion mechanism 44 also translates the carrier 3 on the second conveyor assembly 422 that has passed through the first coating area 411 to the first conveyor assembly 421, thereby exchanging the positions of the carriers 3 on the first conveyor assembly 421 and the second conveyor assembly 422.

[0107] For the second side coating, after the positions of the carrier 3 on the first conveying component 421 and the second conveying component 422 are exchanged, the first conveying component 421 and the second conveying component 422 respectively convey the carrier 3 through the first coating area 411, and the coating mechanism 43 located in the first coating area 411 coats the bottom surface of the sheet material on the first conveying component 421 that has completed the top surface coating, and at the same time coats the top surface of the sheet material on the second conveying component 422 that has completed the bottom surface coating.

[0108] In other embodiments, see Fig. 9 , wherein the carrier 3 in dotted line represents the carrier 3 before moving, when the loading mechanism 1 and the unloading mechanism 2 of the coating equipment 100 are both located at the same side of the coating device 4, the conversion mechanism 44 is located at one end of the first conveying assembly 421 and the second conveying assembly 422 away from the loading mechanism 1 and the unloading mechanism 2. That is, the loading mechanism 1 is located at the front end of the first conveying assembly 421, the unloading mechanism 2 is located at the second conveying assembly 422, the conversion mechanism 44 includes a lifting drive unit and a lifting member 441 connected to the lifting drive unit, the lifting member 441 is located at the rear end of the first conveying assembly 421 and the second conveying assembly 422, and moves up and down between the first conveying assembly 421 and the second conveying assembly 422.

[0109] When the coating device 100 is working, the carrier 3 is conveyed from front to back by the first conveying component 421 so that the coating mechanism 43 can coat the lower surface of the sheet material, and then the carrier 3 and the sheet material with the lower surface coating on the carrier 3 are lifted from the first conveying component 421 to the second conveying component 422 by the lifting component 441, and finally the carrier 3 is conveyed from back to front by the second conveying component 422 so that the coating mechanism 43 can coat the upper surface of the sheet material, thereby realizing the function of quickly coating the sheet material on both sides.

[0110] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. As long as they are within the essential scope of the present application, appropriate changes and modifications to the above embodiments are within the scope disclosed in the present application.

Claims

1. A conversion device for transferring and changing the position of a carrier carrying sheet material, characterized in that: include: A conveying mechanism, the conveying mechanism comprising a first conveying assembly and a second conveying assembly disposed opposite to each other in an upper and lower direction, the first conveying assembly being used to convey the carrier in a specified direction so that an external coating mechanism can coat the lower surface of the sheet material, and the second conveying assembly being used to convey the carrier in a specified direction so that an external coating mechanism can coat the upper surface of the sheet material; a transformation mechanism, the transformation mechanism comprising a lifting drive unit and a lifting member connected to the lifting drive unit, the lifting drive unit being configured to drive the lifting member to move up and down between the first conveying assembly and the second conveying assembly; The lifting component is used to move the carrier on the first conveying component to the second conveying component, or to move the carrier on the second conveying component to the first conveying component.

2. The conversion device according to claim 1, characterized in that: When the lifting member lifts the carrier up or down, the first conveying component avoids the carrier in the up and down directions; or In the up-down direction, the first conveying assembly avoids the carrier, and the second conveying assembly avoids the lifting member and the carrier.

3. The conversion device according to claim 1, characterized in that: The first conveying assembly includes telescopic rollers, and all of the telescopic rollers can move in the left-right direction to avoid the lifting member and the carrier in the up-down direction; or The first conveying assembly and the second conveying assembly both include the telescopic rollers, and all of the telescopic rollers of the first conveying assembly and the second conveying assembly can move along the left-right direction to avoid the lifting member and the carrier in the up-down direction.

4. The conversion device according to claim 3, characterized in that: The number of the telescopic rollers in the first conveying assembly and / or the second conveying assembly is at least two.

5. The conversion device according to claim 3, characterized in that: The first conveying assembly further comprises a conveying roller, and all the telescopic rollers are located between two adjacent conveying rollers; or The first conveying assembly further comprises a conveying roller, and all the telescopic rollers of the first conveying assembly are located between two adjacent conveying rollers in front and behind of the first conveying assembly; The second conveying assembly further includes conveying rollers, and all the telescopic rollers of the second conveying assembly are located between two adjacent conveying rollers in front and behind of the second conveying assembly.

6. The conversion device according to claim 3, characterized in that: The conversion device further comprises two mounting members arranged opposite to each other on the left and right sides, and the lifting drive unit, the first transmission assembly and the second transmission assembly are respectively arranged on the two mounting members; The first conveying assembly and the second conveying assembly respectively convey the carrier from front to back between the two mounting parts.

7. The conversion device according to claim 6, characterized in that: Each of the mounting members is provided with a lifting slot, and the lifting member is inserted into the lifting slot along the left-right direction and extends between the two mounting members.

8. The conversion device according to claim 6, characterized in that: The telescopic rollers of a part of the first conveying assembly are located on one of the mounting parts, and the telescopic rollers of another part of the first conveying assembly are located on the other mounting part, and all the telescopic rollers of the first conveying assembly are respectively movable in the left-right direction away from the two mounting parts; or The telescopic rollers of a part of the first conveying assembly are located on one of the mounting parts, and the telescopic rollers of another part of the first conveying assembly are located on the other mounting part, and all the telescopic rollers of the first conveying assembly are respectively capable of moving away from the two mounting parts along the left-right direction; The telescopic rollers of a part of the second conveying assembly are located on one of the mounting parts, and the telescopic rollers of another part of the second conveying assembly are located on the other mounting part, and all of the telescopic rollers can move away from the two mounting parts along the left and right directions respectively.

9. The conversion device according to claim 1, characterized in that: The carrier is provided with guide grooves on two opposite sides in the left and right directions, and each guide groove is arranged to penetrate along the front-back direction; A portion of the first conveying assembly is positionable within each of the guide slots; A portion of the second conveyor assembly may be located within each of the guide channels.

10. A coating device, characterized in that: It comprises at least two coating mechanisms and the conversion device according to any one of claims 1 to 9; At least one of the coating mechanisms is located in front of the conversion mechanism, and the remaining coating mechanisms are located behind the conversion mechanism. In the up-down direction, all of the coating mechanisms are located between the first conveying assembly and the second conveying assembly; Each of the coating mechanisms is used to coat the sheet material on the first conveying component and the second conveying component respectively.

Images