Full-automatic differential pressure coating production line

Abstract

The utility model discloses a full-automatic differential pressure coating production line which comprises a coating machine, two feeding conveying devices, two transfer devices and two finished product output devices, the coating machine is provided with two groups of mobile station combinations; the feeding conveying device, the transferring device and the finished product output device are sequentially arranged in the conveying direction and symmetrically located at the two ends of the coating machine. A product carrier plate and a membrane carrier plate are conveyed on the feeding conveying device, and the product carrier plate and the membrane carrier plate respectively position a product and fix a membrane in a sticking manner; the transferring device moves the product carrier plate and the membrane carrier plate to the moving table assembly for coating, and the coated product is moved to the finished product output device to be output. According to the full-automatic differential pressure coating production line, the feeding conveying device, the transferring device and the finished product output device are arranged at the two ends of the coating machine respectively, double moving tables are adopted for working, one moving table is used for coating, the other moving table is used for taking and placing products and membranes at the same time, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a coating machine, in particular to a full-automatic pressure difference coating production line. Background Art

[0002] The laminating machine is used to cover the surface of the workpiece with a film to form a film. The film can be heated and then covered on the product by air pressure difference. When laminating the product, the film is first conveyed to the top of the product and then covered on the product. During the laminating process, the film is first stretched and then clamped to keep the film flat and prevent wrinkles from forming after laminating. The film is conveyed to the laminating station by the conveyor device for laminating.

[0003] When the existing coating machine is conveying the film for coating, the unwinding roller that winds the film rotates and outputs the film. After the film is conveyed to the set length, the film output is stopped and the film is cut by a cutter or a cutting knife. After the cutting is completed, the film that meets the requirements needs to be output through the film conveying mechanism and moved to the coating mechanism of the coating station. When the film is moved to the next process by the mechanism of the coating machine conveying the film, it can be conveyed by a robot or by a conveyor belt.

[0004] Existing coating machines require operations such as shearing and alignment of the membrane, which results in a complex equipment structure. During the operation of the equipment, any problems with the membrane cannot be monitored and operated in real time, causing the overall equipment to be interrupted, and the membrane is difficult to clean, ultimately resulting in low production efficiency.

[0005] The existing coating machine has only a single workbench. During the coating process, the membrane needs to be heated, the reaction chamber needs to be evacuated, high-pressure gas needs to be passed, and other steps require a certain amount of coating time. During this process, the robot is idle, causing the robot to fail to perform at its maximum efficiency, resulting in low production efficiency.

[0006] The existing coating production line requires manual supervision and cannot be applied to unmanned workshops.

[0007] Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0008] In view of the above technical problems, the utility model provides a fully automatic pressure difference coating production line and a production process thereof, which eliminates the diaphragm shearing equipment, simplifies the alignment structure of the diaphragm, and simplifies the structure of the overall equipment; it adopts double moving tables, one for coating and the other for taking and placing the product and the diaphragm at the same time, and the production efficiency is greatly improved, which is 30-40% higher than the original production line; it can be applied to unmanned workshops to realize unmanned operation and save labor costs.

[0009] To achieve the above purpose, the technical solution of the utility model is:

[0010] A fully automatic pressure differential coating production line, comprising a coating machine, two feeding conveying devices, two transfer devices and two finished product output devices;

[0011] The coating machine has two sets of moving table combinations;

[0012] The feed conveying device, the transfer device and the finished product output device are arranged in sequence according to the conveying direction and are symmetrically located at both ends of the coating machine;

[0013] The feed conveying device conveys the product carrier and the membrane carrier, and the product carrier and the membrane carrier respectively position the product and stick and fix the membrane;

[0014] The transfer device moves the product carrier plate and the film carrier plate to the movable table assembly for coating, and moves the coated product to the finished product output device for output.

[0015] The above-mentioned fully automatic pressure difference coating production line has a feed conveying device, a transfer device and a finished product output device at both ends of the coating machine. It adopts double moving tables, one for coating and the other for taking and placing products and membranes at the same time, which greatly improves the production efficiency.

[0016] Further optimization scheme, the fully automatic pressure difference coating production line includes two coating machines, and the two coating machines are arranged in parallel. The two coating machines run at the same time, maximizing the efficiency of the transfer device, reducing its waiting time, and further improving production efficiency.

[0017] According to a further optimization scheme, the feed conveying device includes a product conveying mechanism and a membrane conveying mechanism, which are arranged side by side, the product conveying mechanism conveys the product carrier, and the membrane conveying mechanism conveys the membrane carrier. The product conveying mechanism and the membrane conveying mechanism convey the product carrier and the membrane carrier separately, which is conducive to the transfer device to smoothly transfer the product carrier and the membrane carrier, and avoid transfer errors.

[0018] In a further optimized solution, the transfer device includes a manipulator. The transfer device using the manipulator has accurate and rapid movements and good adjustability.

[0019] To further optimize the solution, the coating machine of the fully automatic pressure differential coating production line also includes a rack assembly and a reaction chamber assembly;

[0020] The rack assembly is provided with a rack;

[0021] The two groups of movable table assemblies are arranged side by side on the frame and can move horizontally back and forth on the frame. The two groups of movable table assemblies are respectively provided with a detachable product carrier plate and a membrane carrier plate;

[0022] The reaction chamber assembly is arranged on the frame, located above the moving table assembly, and can move vertically up and down;

[0023] When one group of the movable table assemblies moves to the bottom of the reaction chamber assembly, the reaction chamber assembly moves downward to cover the product and the film to perform the covering action, while the other group of the movable table assemblies performs the taking and placing actions of other product carriers and film carriers.

[0024] The coating machine of the above-mentioned fully automatic pressure difference coating production line first sticks and fixes the diaphragm on the diaphragm carrier, and then moves it to the mobile table combination, eliminating the need for diaphragm shearing equipment. The alignment of the diaphragm is achieved by positioning the diaphragm carrier. Compared with directly clamping, conveying and aligning the diaphragm, it is simple and quick, the equipment has also been simplified, and production efficiency has been improved. Two sets of mobile table combinations, one is performing the coating action, and the other is simultaneously taking and placing the product carrier and the diaphragm carrier, that is, it can place new product carriers and diaphragm carriers, and can also take away the products coated with the diaphragm. The cooperating manipulator or other conveying equipment does not need to be idle and waiting, which ultimately improves production efficiency.

[0025] According to a further optimized solution, the mobile platform assembly includes a mobile support frame, a stop plate assembly and a workbench;

[0026] The movable support frame is movably arranged on the frame, and the stop plate assembly and the workbench are arranged upwardly thereon in sequence;

[0027] The stop plate assembly is provided with a stop plate, the stop plate can move up and down between the movable support frame and the workbench, and the product carrier plate is placed on the stop plate;

[0028] The workbench is a hollow structure that runs through from top to bottom, and a membrane carrier is placed on the top;

[0029] The stop plate drives the product to move upward through the hollow structure of the workbench and cover the diaphragm.

[0030] The product carrier is placed on the stop plate first, and the stop plate descends with the product, and then the membrane carrier is placed on the workbench, which is conducive to the placement of the product carrier and the membrane carrier, and the alignment of the product and the membrane is convenient and accurate.

[0031] Further optimizing the solution, the size of the hollow structure is adapted to the shape of the product carrier and positions the product carrier;

[0032] A first positioning structure is provided between the workbench and the membrane carrier, and a second positioning structure is provided between the membrane carrier and the product carrier.

[0033] The hollow structure is conducive to the positioning of the product carrier, and the first positioning structure and the second positioning structure are conducive to the placement of the product carrier and the membrane carrier, the alignment of the product and the membrane, and prevent the displacement of the product carrier and the membrane carrier during operation.

[0034] Further optimizing the scheme, the stop plate assembly is provided with a stop plate moving structure, which includes a moving main shaft, a first upper swing arm, a second upper swing arm, a first lower swing arm, a second lower swing arm, an upper horizontal axis, a middle horizontal axis, a first lower horizontal axis, a second lower horizontal axis, a first support seat, a second support seat and a stop plate motor drive device;

[0035] The movable main shaft is vertically arranged, one end of which is fixed with the stop plate, and the other end is penetrated by the upper horizontal shaft, and the two ends of the upper horizontal shaft are rotatably connected with the first upper swing arm and the second upper swing arm;

[0036] The middle horizontal axis passes through and rotatably connects the first upper swing arm and the second upper swing arm, and two ends of the middle horizontal axis are outwardly fixedly connected to the first lower swing arm and the second lower swing arm;

[0037] The first lower horizontal shaft is rotatably connected to the first support seat, one end of which is fixedly connected to the first lower swing arm, and the other end of which is connected to the stop plate motor drive device;

[0038] One end of the second horizontal shaft is rotatably connected to the second support seat, and the other end is fixedly connected to the second lower swing arm;

[0039] The first support seat and the second support seat are arranged on the mobile support frame;

[0040] The stop plate motor drive device rotates, driving the first lower swing arm, the second lower swing arm, the first upper swing arm and the second upper swing arm to rotate, driving the movable main shaft to move up and down; when the movable main shaft moves upward until the axes of the upper horizontal axis, the middle horizontal axis, the first lower horizontal axis and the second lower horizontal axis are in the same vertical plane, the stop plate is sealed and fitted against the workbench.

[0041] An upper and lower swing arm rotating mechanism is adopted to realize the up and down movement of the stop plate. The manufacturing cost of the mechanism is low and the volume is small. When the stop plate is sealed with the workbench, the axes of the upper horizontal axis, the middle horizontal axis, the first lower horizontal axis and the second lower horizontal axis are in the same vertical plane, realizing a mechanical self-locking structure, thereby ensuring the stability of the stop plate and the workbench seal and the reliability of the mechanism.

[0042] In a further optimized solution, the stop plate assembly is further provided with a product heating structure, which is located between the stop plate and the product carrier plate. Heating the product to a certain temperature is conducive to the coating of the membrane and ensures the effect after coating.

[0043] In a further optimized solution, the mobile platform assembly also includes a product ejection assembly, which is provided with a plurality of product ejectors, the product ejectors are located at the lower part of the product carrier plate, penetrate the workbench and can move up and down. The product carrier plate is lifted up by the plurality of product ejectors, so that the product carrier plate can be easily removed.

[0044] Further optimizing the solution, the reaction chamber assembly includes a reaction chamber and a reaction chamber up and down displacement mechanism;

[0045] The reaction chamber up-and-down displacement mechanism comprises a reaction chamber motor drive device, a first upper rotating arm, a second upper rotating arm, a first upper connecting shaft, a second upper connecting shaft, a first connecting seat, a second connecting seat, a middle connecting shaft, a first lower rotating arm, a second lower rotating arm, a first lower connecting shaft and a second lower connecting shaft;

[0046] The first upper connecting shaft, the second upper connecting shaft, the middle connecting shaft, the first lower connecting shaft and the second lower connecting shaft are all arranged horizontally;

[0047] The reaction chamber motor drive device is fixed on the frame;

[0048] The first upper connecting shaft is rotatably connected to the first connecting seat, one end of which is fixedly connected to the first upper rotating arm, and the other end of which is connected to the reaction chamber motor driving device;

[0049] One end of the second upper connecting shaft is fixedly connected to the second upper rotating arm, and the other end is rotatably connected to the second connecting seat;

[0050] The first connecting seat and the second connecting seat are respectively fixed on the frame;

[0051] One end of the middle connecting shaft is fixedly connected to the first upper rotating arm and is rotatably connected to the first lower rotating arm; the other end is fixedly connected to the second upper rotating arm and is rotatably connected to the second lower rotating arm;

[0052] One end of the first lower connecting shaft is rotatably connected to the first lower rotating arm, and the other end is fixedly connected to one side of the reaction chamber;

[0053] One end of the second lower connecting shaft is rotatably connected to the second lower rotating arm, and the other end is fixedly connected to the other side of the reaction chamber;

[0054] The reaction chamber motor drive device rotates to drive the reaction chamber to move downward to cover the product and the diaphragm, and rotates until the center lines of the first upper connecting shaft, the second upper connecting shaft, the middle connecting shaft, the first lower connecting shaft and the second lower connecting shaft are located in the same vertical plane, and the reaction chamber is sealed and fitted with the movable platform combination.

[0055] An up and down rotating arm mechanism is used to realize the up and down movement of the reaction chamber. The mechanism has low manufacturing cost and small size. When the reaction chamber and the movable table are combined and sealed, the center lines of all connecting axes are in the same vertical plane, realizing a mechanical self-locking structure, thereby ensuring the stability of the combined seal of the reaction chamber and the movable table and the reliability of the mechanism.

[0056] According to a further optimized solution, the reaction chamber assembly further includes a reaction chamber guide rail mechanism, which has a plurality of rollers, a left vertical guide rail and a right vertical guide rail;

[0057] A plurality of rollers are respectively fixed on both sides of the reaction chamber;

[0058] The left vertical guide rail and the right vertical guide rail are respectively arranged on both sides of the reaction chamber;

[0059] The plurality of rollers are respectively located in the tracks of the left vertical guide rail and the right vertical guide rail and move up and down.

[0060] The reaction chamber guide rail mechanism ensures the stability of the reaction chamber during its up and down movement without any shaking or position deviation.

[0061] In a further optimized solution, the reaction chamber assembly further includes a guide rail moving mechanism, which is arranged on the frame and connected to the left vertical guide rail and the right vertical guide rail respectively, driving the left vertical guide rail and the right vertical guide rail to move up and down. The guide rail moving mechanism facilitates the roller of the reaction chamber to be separated from the left vertical guide rail and the right vertical guide rail, so that other actions such as flipping the reaction chamber can be realized, which is convenient for cleaning the reaction chamber.

[0062] According to a further optimized solution, the reaction chamber assembly further comprises a reaction chamber flipping mechanism, which comprises a flipping drive device, a flipping swing arm, two flipping rollers and a flipping guide rail;

[0063] The flip driving device is fixed on the frame;

[0064] One end of the flip swing arm is connected to the flip driving device, and the other end is provided with two flip rollers;

[0065] The flip guide rail is vertically fixedly connected to a side surface of the reaction chamber, and when flipping, the flip guide rail is located between the two flip rollers.

[0066] The reaction chamber turns the cover opening to the outside through a flipping mechanism, which facilitates manual cleaning and solves the technical problem of difficult maintenance.

[0067] According to a further optimized solution, an upper heating cavity and a lower reaction cavity are provided inside the reaction chamber, a sealing glass plate is provided between the heating cavity and the reaction cavity, and the sealing glass plate is sealed and connected to the reaction cavity.

[0068] The heating chamber and the reaction chamber inside the reaction chamber are separated to facilitate cleaning inside the chamber. Vacuuming and filling with high-pressure gas only need to be carried out inside the reaction chamber, which reduces the volume and is beneficial to energy saving.

[0069] In a further optimized solution, a membrane pressing plate with a middle opening is provided in the reaction chamber to press and seal the membrane;

[0070] The membrane pressing plate and the membrane divide the reaction chamber into an upper chamber and a lower chamber;

[0071] A porous cover frame is provided between the membrane pressing plate and the sealing glass plate;

[0072] The upper chamber outside the porous cover frame is provided with upper chamber air holes for internal and external ventilation;

[0073] The lower bin is provided with a lower bin air hole for ventilation inside and outside.

[0074] The reaction chamber is divided into an upper chamber and a lower chamber, so that a pressure difference is formed between the upper chamber and the lower chamber during the membrane coating process. That is, the upper chamber is filled with high-pressure gas, and the lower chamber is still maintained in a vacuum, forming a huge pressure difference to coat the membrane onto the product surface, ensuring that the membrane fits the product surface perfectly, and a very good coating effect can be achieved even for uneven product surfaces.

[0075] Further optimization scheme, multiple U-shaped lamp tube heating diaphragms are arranged in the heating cavity, and the heating cavity and the lower chamber are respectively provided with infrared detection components. By setting multiple U-shaped lamp tube heating diaphragms, the heating power of the diaphragms can be adjusted in sections. Two sets of infrared detection components are set, that is, multi-point detection, to accurately detect the temperature of the diaphragm, which is convenient for timely adjustment of the U-shaped lamp tube heating power.

[0076] Further optimizing the scheme, the frame assembly includes a ball screw drive assembly and two left and right horizontal guide rails;

[0077] The two groups of movable platform assemblies are arranged on the two horizontal guide rails, and the ball screw drive assembly has two screw nuts respectively connecting the two groups of movable platform assemblies.

[0078] The two sets of moving tables are combined to move back and forth on the horizontal guide rail through the ball screw drive assembly, which is easy to control and has high moving position accuracy.

[0079] According to a further optimization scheme, the above-mentioned dual-movable platform automatic pressure difference coating machine also includes a vacuum pump system, an air source system and a control system. The vacuum pump system and the air source system are respectively connected to the upper bin air holes and the lower bin air holes by pipelines, and the control system is respectively electrically connected to the vacuum pump system, the air source system, the frame assembly, the movable platform assembly and the reaction bin assembly to realize automatic operation.

[0080] Compared with the prior art, the utility model has the following technical advantages:

[0081] 1. The fully automatic differential pressure coating production line eliminates the diaphragm shearing equipment and simplifies the alignment structure of the diaphragm. The alignment of the product and the diaphragm can be achieved by simply positioning the product carrier and the diaphragm carrier. The structure of the overall equipment has been simplified.

[0082] 2. The fully automatic pressure differential coating production line uses double moving platforms, one for coating and the other for taking and placing products and membranes at the same time. The manipulator or other conveying equipment that cooperates with it does not need to be idle and wait, and the production efficiency has been greatly improved. Compared with the original production line, the overall efficiency is increased by 30-40%;

[0083] 3. The coating machine in the fully automatic differential pressure coating production line adopts an upper and lower swing arm rotating mechanism to realize the up and down movement of the stop plate. The mechanism has low manufacturing cost and small size. When the stop plate is sealed with the workbench, the axes of all horizontal axes are in the same vertical plane, realizing the self-locking of the mechanical structure, ensuring the stability of the stop plate and the workbench seal and the reliability of the mechanism.

[0084] 4. The coating machine in the fully automatic differential pressure coating production line adopts an up and down rotating arm mechanism to realize the up and down movement of the reaction chamber. The mechanism has low manufacturing cost and small size. When the reaction chamber and the moving table are combined and sealed, the center lines of all connecting shafts are in the same vertical plane, realizing the self-locking of the mechanical structure, ensuring the stability of the combined seal of the reaction chamber and the moving table and the reliability of the mechanism.

[0085] 5. The reaction chamber of the coating machine in the fully automatic pressure differential coating production line turns the cover opening to the outside through a flipping mechanism, which is convenient for manual cleaning and solves the problem of difficult maintenance;

[0086] 6. The fully automatic pressure differential coating production line has a control system to realize the automation of all actions, and can be placed in an unmanned workshop to achieve uninterrupted unmanned automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] Figure 1 This is a three-dimensional diagram of a specific embodiment of the fully automatic pressure difference coating production line of the utility model;

[0088] Figure 2 yes Figure 1 A top view of

[0089] Figure 3 yes Figure 1 A three-dimensional diagram of the middle coating machine;

[0090] Figure 4 yes Figure 3 Stereoscopic view from rear perspective;

[0091] Figure 5yes Figure 3 A stereogram of the mobile station assembly;

[0092] Figure 6 yes Figure 5 Exploded diagram of

[0093] Figure 7 yes Figure 5 A three-dimensional diagram of the moving structure of the middle stop plate;

[0094] Figure 8 yes Figure 3 A first stereogram of the middle reaction chamber assembly;

[0095] Fig. 9 yes Figure 3 A second stereoscopic view of the middle reaction chamber assembly;

[0096] Fig.10 yes Figure 3 A third stereogram of the middle reaction chamber assembly;

[0097] Fig.11 yes Figure 8 A three-dimensional view of the middle reaction chamber;

[0098] Fig.12 yes Fig.11 sectional view of

[0099] Fig.13 yes Fig.11 A three-dimensional diagram of the internal parts of the reaction chamber;

[0100] Fig.14 yes Figure 3 A three-dimensional view of the roller of the middle reaction chamber being disengaged from the guide rail;

[0101] Fig.15 yes Figure 3 A three-dimensional image of the middle reaction chamber after it is flipped over.

[0102] In the figure: coating machine 10, feed conveying device 20, product conveying mechanism 21, film conveying mechanism 22, transfer device 30, finished product output device 40, frame assembly 100, frame 110, horizontal guide rail 120, ball screw drive assembly 130, screw nut 131, screw 132, screw rotating motor 133, moving table assembly 200, product carrier 210, film carrier 220, moving support frame 230, stop plate assembly 240, stop plate 241, stop plate moving structure 242, moving spindle 242a, first upper swing arm 242b, second upper swing arm arm 242c, first lower swing arm 242d, second lower swing arm 242e, upper horizontal axis 242f, middle horizontal axis 242g, first lower horizontal axis 242h, second lower horizontal axis 242i, first support seat 242j, second support seat 242k, stop plate motor drive device 242l, product heating structure 243, heating plate 243a, heat insulation plate 243b, workbench 250, hollow structure 251, first positioning structure 260, second positioning structure 270, product ejection assembly 280, product ejector pin 281, ejection cylinder 282, table panel 290, counter The reaction chamber assembly 300, the reaction chamber 310, the heating chamber 311, the reaction chamber 312, the upper chamber 312a, the lower chamber 312b, the upper chamber air hole 312c, the lower chamber air hole 312d, the sealing glass plate 313, the diaphragm pressing plate 314, the porous cover frame 315, the U-shaped lamp tube 316, the infrared detection component 317, the reaction chamber up and down displacement mechanism 320, the reaction chamber motor drive device 321, the first upper rotating arm 322, the second upper rotating arm 323, the first upper connecting shaft 324, the second upper connecting shaft 325, the first connecting seat 326, the second connecting seat 327, the middle connecting shaft 328, the middle connecting shaft 329, the middle connecting shaft 330, the middle connecting shaft 331, the middle connecting shaft 332, the middle connecting shaft 333, the middle connecting shaft 334, the middle connecting shaft 335, the middle connecting shaft 336, the middle connecting shaft 337, the middle connecting shaft 338, the middle connecting shaft 339, the middle connecting shaft 340, the middle connecting shaft 341, the middle connecting shaft 342, the middle connecting shaft 343, the middle connecting shaft 344, the middle connecting shaft 345, the middle connecting shaft 346, the middle connecting shaft 347, the middle connecting shaft 348, the middle connecting shaft 349, the middle connecting shaft 349, the middle connecting shaft 341, the middle connecting shaft 349, the middle connecting shaft 341, the middle connecting shaft 342, the middle connecting shaft 343, the middle connecting shaft 344, the middle connecting shaft 345, the middle connecting shaft 346, the middle connecting shaft 347, the middle connecting shaft 348, the middle connecting shaft 349 28. The first lower rotating arm 329, the second lower rotating arm 32a, the first lower connecting shaft 32b, the second lower connecting shaft 32c, the reaction chamber guide rail mechanism 330, the roller 331, the left vertical guide rail 332, the right vertical guide rail 333, the guide rail moving mechanism 340, the worm gear screw lift 341, the lifting beam 342, the left vertical rail 343, the right vertical rail 344, the reaction chamber flipping mechanism 350, the flipping drive device 351, the flipping swing arm 352, the flipping roller 353, the flipping guide rail 354, the vacuum pump system 400, the gas source system 500, and the control system 600. DETAILED DESCRIPTION

[0103] The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings.

[0104] like Figures 1 to 15 As shown, a specific embodiment of the fully automatic pressure difference coating production line of the utility model.

[0105] like Figure 1 and Figure 2As shown, the fully automatic pressure difference coating production line of this embodiment includes two coating machines 10 , two feeding conveying devices 20 , two transfer devices 30 and two finished product output devices 40 .

[0106] like Figure 1 and Figure 2 As shown, two coating machines 10 are arranged in parallel, and each coating machine 10 has two sets of moving table assemblies 200.

[0107] like Figure 1 and Figure 2 As shown, the feed conveying device 20 , the transfer device 30 and the finished product output device 40 are arranged in sequence according to the conveying direction and are symmetrically located at both ends of the coating machine 10 .

[0108] like Figure 1 and Figure 2 As shown, the product carrier plate 210 and the membrane carrier plate 220 are transported on the feed conveying device 20, and the product carrier plate 210 and the membrane carrier plate 220 respectively position the product and stick and fix the membrane.

[0109] like Figure 1 and Figure 2 As shown, the feed conveying device 20 includes a product conveying mechanism 21 and a film conveying mechanism 22, which are arranged side by side, the product conveying mechanism 21 conveys the product carrier 210, and the film conveying mechanism 22 conveys the film carrier 220. The product conveying mechanism and the film conveying mechanism convey the product carrier and the film carrier separately, which is conducive to the transfer device to smoothly transfer the product carrier and the film carrier, and avoid transfer errors.

[0110] like Figure 1 and Figure 2 As shown, the transfer device 30 moves the product carrier 210 and the film carrier 220 to the moving table assembly 200 for coating, and moves the coated product to the finished product output device 40 for output; the transfer device 30 includes a robot. The transfer device using the robot moves accurately and quickly, and has good adjustability.

[0111] The fully automatic differential pressure coating production line has a feeding conveyor, a transfer device and a finished product output device at both ends of the coating machine. It uses a double moving table, one for coating and the other for taking and placing products and membranes at the same time, which greatly improves production efficiency. The two coating machines run at the same time, maximizing the efficiency of the transfer device, reducing its waiting time, and further improving production efficiency.

[0112] like Figure 3 As shown, the coating machine 10 of the fully automatic pressure difference coating production line of this embodiment includes a frame assembly 100 , a moving table assembly 200 and a reaction chamber assembly 300 .

[0113] like Figure 3As shown, the rack assembly 100 is provided with a rack 110, a ball screw drive assembly 130 and two left and right horizontal guide rails 120. The rack 110 has two parts, a horizontal rack and a vertical rack, and the vertical rack is fixed on the horizontal rack.

[0114] like Figure 3 and Figure 4 As shown, the ball screw drive assembly 130 is fixed on the horizontal frame 110, and includes two screw nuts 131, a screw 132 and a screw rotating motor 133. One end of the screw 132 is connected to the screw rotating motor 133 and extends from one end to the other end of the horizontal frame 110. Two horizontal guide rails 120 are fixed on the left and right sides of the horizontal frame 110, and the screw 132 is located in the middle of the two horizontal guide rails 120.

[0115] like Figure 3 and Figure 4 As shown, the moving platform assembly 200 is divided into two groups, which are arranged side by side on the frame 110 and can move back and forth horizontally on the frame 110. The two groups of moving platform assemblies 200 are slidably connected to two horizontal guide rails 120, and two screw nuts 131 are respectively connected to the two groups of moving platform assemblies 200.

[0116] The two sets of moving tables are combined to move back and forth on the horizontal guide rail through the ball screw drive assembly, which is easy to control and has high moving position accuracy.

[0117] like Figure 5 and Figure 6 As shown, the two groups of mobile table assemblies 200 are respectively provided with a detachable product carrier 210 and a film carrier 220 . The product carrier 210 and the film carrier 220 are respectively positioned with products and the films are pasted and fixed before being moved to the mobile table assembly 200 .

[0118] like Figure 3 As shown, the reaction chamber assembly 300 is arranged on the vertical frame 110, located above the moving stage assembly 200, and can move vertically up and down. When one group of moving stage assemblies 200 moves to the bottom of the reaction chamber assembly 300, the reaction chamber assembly 300 moves downward to cover the product and the film to perform the covering action, while the other group of moving stage assemblies 200 performs the taking and placing action of other product carriers 210 and film carriers 220.

[0119] The coating machine of the fully automatic differential pressure coating production line first sticks and fixes the diaphragm on the diaphragm carrier, and then moves it to the mobile table combination, eliminating the need for diaphragm shearing equipment. The alignment of the diaphragm is achieved by positioning the diaphragm carrier. Compared with direct clamping, conveying and aligning the diaphragm, it is simpler and faster, the equipment has also been simplified, and production efficiency has been improved. Two sets of mobile table combinations, one is performing the coating action, and the other is simultaneously taking and placing the product carrier and the diaphragm carrier, that is, it can place new product carriers and diaphragm carriers, and can also take away the products coated with diaphragms. The manipulator or other conveying equipment that cooperates with it does not need to be idle and waiting, which ultimately improves production efficiency.

[0120] like Figure 5 As shown, the mobile table assembly 200 includes a mobile support frame 230, a table panel 290, a stop plate assembly 240 and a workbench 250; the mobile support frame 230 can be movably set on the horizontal guide rails 120 on the left and right sides of the frame 110 in the horizontal direction, and the table panel 290, the stop plate assembly 240 and the workbench 250 are arranged upward in sequence thereon.

[0121] like Figure 5 As shown, the stop plate assembly 240 is provided with a stop plate 241 , and the stop plate 241 can move up and down between the table panel 290 and the workbench 250 , and the product carrier plate 210 is placed on the stop plate 241 .

[0122] like Figure 6 As shown, the workbench 250 is a hollow structure 251 that runs through from top to bottom, and the membrane carrier 220 is placed on the upper part thereof; the size of the hollow structure 251 is adapted to the shape of the product carrier 210 and positions the product carrier 210.

[0123] like Figure 5 As shown, the stop plate 241 drives the product to move upward through the hollow structure 251 of the workbench 250 and cover the membrane.

[0124] The product carrier is placed on the stop plate first, and the stop plate descends with the product, and then the membrane carrier is placed on the workbench, which is conducive to the placement of the product carrier and the membrane carrier, and the alignment of the product and the membrane is convenient and accurate.

[0125] like Figure 6 As shown, a first positioning structure 260 is provided between the workbench 250 and the film carrier 220, and a second positioning structure 270 is provided between the film carrier 220 and the product carrier 210; the first positioning structure 260 and the second positioning structure 270 are respectively a pin and a pin sleeve. Pin sleeves are provided at the four corners of the film carrier 220, and four pins are provided on the corresponding workbench 250 to cooperate with them. Pin sleeves are provided at the middle positions of the two sides of the reverse side of the film-attaching film of the film carrier 220, and two pins are provided on the corresponding product carrier 210 to cooperate with them.

[0126] The hollow structure is conducive to the positioning of the product carrier, and the first positioning structure and the second positioning structure are conducive to the placement of the product carrier and the membrane carrier, the alignment of the product and the membrane, and prevent the displacement of the product carrier and the membrane carrier during operation.

[0127] like Figure 7 As shown, the stop plate assembly 240 is provided with a stop plate moving structure 242, which includes a moving main shaft 242a, a first upper swing arm 242b, a second upper swing arm 242c, a first lower swing arm 242d, a second lower swing arm 242e, an upper horizontal axis 242f, a middle horizontal axis 242g, a first lower horizontal axis 242h, a second lower horizontal axis 242i, a first support seat 242j, a second support seat 242k and a stop plate motor drive device 242l.

[0128] like Figure 7 As shown, the movable main shaft 242a is vertically arranged, one end of which is fixed with the stop plate 241, and the other end is penetrated by the upper horizontal shaft 242f, and the two ends of the upper horizontal shaft 242f are rotatably connected to the first upper swing arm 242b and the second upper swing arm 242c.

[0129] like Figure 7 As shown, the middle horizontal shaft 242g penetrates and rotatably connects the first upper swing arm 242b and the second upper swing arm 242c, and the two ends of the middle horizontal shaft 242g are fixedly connected to the first lower swing arm 242d and the second lower swing arm 242e outwardly.

[0130] like Figure 7 As shown, the first lower horizontal shaft 242h is rotatably connected to the first support seat 242j, one end of which is fixedly connected to the first lower swing arm 242d, and the other end of which is connected to the stop plate motor driving device 242l.

[0131] like Figure 7 As shown, one end of the second horizontal axis is rotatably connected to the second support seat 242k, and the other end is fixedly connected to the second lower swing arm 242e.

[0132] like Figure 7 As shown, the first support seat 242j and the second support seat 242k are arranged on the movable support frame 230.

[0133] like Figure 6 and Figure 7 As shown, the stop plate motor drive device 242l transmits power through a gear set composed of a motor, a reducer and three gears. The motor rotates, driving the first lower swing arm 242d, the second lower swing arm 242e, the first upper swing arm 242b and the second upper swing arm 242c to rotate, driving the moving main shaft 242a to move up and down; when the moving main shaft 242a moves upward until the axes of the upper horizontal axis 242f, the middle horizontal axis 242g, the first lower horizontal axis 242h and the second lower horizontal axis 242i are in the same vertical plane, the stop plate 241 is sealed and fitted with the workbench 250.

[0134] An upper and lower swing arm rotating mechanism is adopted to realize the up and down movement of the stop plate. The manufacturing cost of the mechanism is low and the volume is small. When the stop plate is sealed with the workbench, the axes of the upper horizontal axis, the middle horizontal axis, the first lower horizontal axis and the second lower horizontal axis are in the same vertical plane, realizing a mechanical self-locking structure, thereby ensuring the stability of the stop plate and the workbench seal and the reliability of the mechanism.

[0135] like Figure 6 As shown, the stop plate assembly 240 is further provided with a product heating structure 243, which is located between the stop plate 241 and the product carrier plate 210. The product heating structure 243 includes a heating plate 243a and a heat insulation plate 243b, wherein the heating plate 243a is located at the lower part of the product carrier plate 210, and the heat insulation plate 243b is located at the lower part of the heating plate 243a and the upper part of the stop plate 241. Heating the product to a certain temperature is conducive to the coating of the film, and the coating effect is guaranteed.

[0136] like Figure 4 As shown, the mobile platform assembly 200 also includes a product ejection assembly 280, which is provided with four product ejectors 281 and four ejection cylinders 282. The four product ejectors 281 are located at the lower part of the product carrier 210 and penetrate the workbench 250, and are respectively connected to an ejection cylinder 282 and can move up and down. The product carrier is lifted up by the four product ejectors, so that the product carrier is conveniently removed.

[0137] like Figure 8 As shown, the reaction chamber assembly 300 includes a reaction chamber 310 and a reaction chamber up-and-down displacement mechanism 320 .

[0138] like Figure 8 As shown, the reaction chamber up and down displacement mechanism 320 has a reaction chamber motor drive device 321, a first upper rotating arm 322, a second upper rotating arm 323, a first upper connecting shaft 324, a second upper connecting shaft 325, a first connecting seat 326, a second connecting seat 327, a middle connecting shaft 328, a first lower rotating arm 329, a second lower rotating arm 32a, a first lower connecting shaft 32b and a second lower connecting shaft 32c.

[0139] like Figure 8 As shown, the first upper connecting shaft 324, the second upper connecting shaft 325, the middle connecting shaft 328, the first lower connecting shaft 32b and the second lower connecting shaft 32c are all arranged horizontally.

[0140] like Figure 8 As shown, the reaction chamber motor drive device 321 includes a motor, a reducer and a connecting seat, which is fixed on the frame 110 in the vertical direction.

[0141] like Figure 8 and Fig. 9As shown, the first upper connecting shaft 324 is rotatably connected to the first connecting seat 326 , one end of which is fixedly connected to the first upper rotating arm 322 , and the other end of which is connected to the reaction chamber motor driving device 321 .

[0142] like Figure 8 As shown, one end of the second upper connecting shaft 325 is fixedly connected to the second upper rotating arm 323 , and the other end is rotatably connected to the second connecting seat 327 .

[0143] like Figure 8 As shown, the first connection base 326 and the second connection base 327 are respectively fixed on the frame 110 in the vertical direction.

[0144] like Figure 8 and Fig. 9 As shown, one end of the middle connecting shaft 328 is fixedly connected to the first upper rotating arm 322 and is rotatably connected to the first lower rotating arm 329; the other end is fixedly connected to the second upper rotating arm 323 and is rotatably connected to the second lower rotating arm 32a.

[0145] like Figure 8 As shown, one end of the first lower connecting shaft 32 b is rotatably connected to the first lower rotating arm 329 , and the other end is fixedly connected to one side of the reaction chamber 310 .

[0146] like Figure 8 As shown, one end of the second lower connecting shaft 32 c is rotatably connected to the second lower rotating arm 32 a , and the other end is fixedly connected to the other side of the reaction chamber 310 .

[0147] like Figure 8 As shown, the reaction chamber motor drive device 321 rotates to drive the reaction chamber 310 to move downward to cover the product and the diaphragm, and rotates until the center lines of the first upper connecting shaft 324, the second upper connecting shaft 325, the middle connecting shaft 328, the first lower connecting shaft 32b and the second lower connecting shaft 32c are located in the same vertical plane, and the reaction chamber 310 is sealed and fitted with the table panel 290 of the movable table assembly 200.

[0148] An up and down rotating arm mechanism is used to realize the up and down movement of the reaction chamber. The mechanism has low manufacturing cost and small size. When the reaction chamber and the movable table are combined and sealed, the center lines of all connecting axes are in the same vertical plane, realizing a mechanical self-locking structure, thereby ensuring the stability of the combined seal of the reaction chamber and the movable table and the reliability of the mechanism.

[0149] like Figure 8 and Fig.10 As shown, the reaction chamber assembly 300 further includes a reaction chamber guide rail mechanism 330 , which has four rollers 331 , a left vertical guide rail 332 and a right vertical guide rail 333 .

[0150] like Fig.10As shown, the four rollers 331 are fixed on both sides of the reaction chamber 310 through a horizontally arranged long axis, and the rollers 331 are fixed at both ends of the long axis. There are two upper and lower long axes to fix the four rollers 331, and the two long axes are fixed at the rear of the reaction chamber 310 respectively.

[0151] like Fig.10 As shown, the left vertical guide rail 332 and the right vertical guide rail 333 are respectively arranged on both sides of the reaction chamber 310; the four rollers 331 are respectively located in pairs in the tracks of the left vertical guide rail 332 and the right vertical guide rail 333 to move up and down.

[0152] The reaction chamber guide rail mechanism ensures the stability of the reaction chamber during its up and down movement without any shaking or position deviation.

[0153] like Figure 8 and Fig. 9 As shown, the reaction chamber assembly 300 also includes a guide rail moving mechanism 340, which is arranged on the frame 110 in the vertical direction, and is respectively connected to the left vertical guide rail 332 and the right vertical guide rail 333, so as to drive the left vertical guide rail 332 and the right vertical guide rail 333 to move up and down.

[0154] like Figure 8 and Fig. 9 As shown, the guide rail moving mechanism 340 includes a worm gear screw lift 341, a lifting beam 342, a left vertical rail 343 and a right vertical rail 344. The worm gear screw lift 341 is fixed on the frame 110 in the vertical direction, the lifting beam 342 is connected to the worm gear screw lift 341 in the middle, and the left vertical guide rail 332 and the right vertical guide rail 333 are connected on the left and right sides respectively, the left vertical guide rail 332 and the right vertical guide rail 333 are slidably connected to the left vertical rail 343 and the right vertical rail 344 respectively, and the left vertical rail 343 and the right vertical rail 344 are fixed on the frame 110 in the vertical direction.

[0155] The guide rail moving mechanism facilitates the roller of the reaction chamber to be separated from the left vertical guide rail and the right vertical guide rail, so that other actions such as flipping the reaction chamber can be realized, which is convenient for cleaning the reaction chamber.

[0156] like Figure 8 and Fig. 9 As shown, the reaction chamber assembly 300 further includes a reaction chamber flipping mechanism 350 , which has a flipping drive device 351 , a flipping swing arm 352 , two flipping rollers 353 and a flipping guide rail 354 .

[0157] like Fig. 9 As shown, the flip driving device 351 is fixed on the frame 110 in the vertical direction, and includes a motor and a reducer.

[0158] like Figure 8 and Fig. 9As shown, one end of the flip swing arm 352 is connected to the flip driving device 351, and the other end is provided with two flip rollers 353.

[0159] like Fig. 9 As shown, the flip guide rail 354 is vertically fixedly connected to a side surface of the reaction chamber 310 , and the flip guide rail 354 is located between the two flip rollers 353 during flipping.

[0160] The reaction chamber turns the cover opening to the outside through a flipping mechanism, which facilitates manual cleaning and solves the technical problem of difficult maintenance.

[0161] like Fig.12 As shown, the reaction chamber 310 is provided with an upper heating chamber 311 and a lower reaction chamber 312 , a sealing glass plate 313 is provided between the heating chamber 311 and the reaction chamber 312 , and the sealing glass plate 313 is sealed and connected to the reaction chamber 312 .

[0162] The heating chamber and the reaction chamber inside the reaction chamber are separated to facilitate cleaning inside the chamber. Vacuuming and filling with high-pressure gas only need to be carried out inside the reaction chamber, which reduces the volume and is beneficial to energy saving.

[0163] like Fig.12 and Fig.13 As shown, a membrane pressing plate 314 with a middle opening is provided in the reaction chamber 312 to press and seal the membrane; the membrane pressing plate 314 and the membrane divide the reaction chamber 312 into an upper chamber 312a and a lower chamber 312b; a porous cover frame 315 is provided between the membrane pressing plate 314 and the sealing glass plate 313.

[0164] like Fig.11 and Fig.13 As shown, the upper chamber 312a outside the porous cover frame 315 is provided with an upper chamber air hole 312c for internal and external ventilation; the lower chamber 312b is provided with a lower chamber air hole 312d for internal and external ventilation.

[0165] The reaction chamber is divided into an upper chamber and a lower chamber, so that a pressure difference is formed between the upper chamber and the lower chamber during the membrane coating process. That is, the upper chamber is filled with high-pressure gas, and the lower chamber is still maintained in a vacuum, forming a huge pressure difference to coat the membrane onto the product surface, ensuring that the membrane fits the product surface perfectly, and a very good coating effect can be achieved even for uneven product surfaces.

[0166] like Fig.11 and Fig.13 As shown, a plurality of U-shaped lamps 316 are provided in the heating cavity 311 to heat the diaphragm, and the heating cavity 311 and the lower chamber 312b are respectively provided with infrared detection components 317. By providing a plurality of U-shaped lamps 316 to heat the diaphragm, the heating power of the diaphragm can be adjusted in sections. Two sets of infrared detection components 317 are provided, that is, multi-point detection, to accurately detect the temperature of the diaphragm, and to facilitate timely adjustment of the heating power of the U-shaped lamps 316.

[0167] like Figure 3 As shown, each coating machine 10 also includes a vacuum pump system 400, an air source system 500 and a control system 600. The vacuum pump system 400 and the air source system 500 are respectively connected to the upper chamber air hole 312c and the lower chamber air hole 312d by pipelines, and the control system 600 is respectively electrically connected to the vacuum pump system 400, the air source system 500, the frame assembly 100, the mobile platform assembly 200 and the reaction chamber assembly 300 to realize automatic operation. In actual applications, two coating machines can share one set of the vacuum pump system 400, the air source system 500 and the control system 600, and the other set can be used as a backup or directly cancelled.

[0168] The operation process of the coating machine of this embodiment is as follows: no product carriers and film carriers are placed on the two sets of mobile table assemblies, all product carriers have been positioned and fixed before being moved to the mobile table assembly, and all film carriers have been pasted and fixed with films before being moved to the mobile table assembly.

[0169] 1. The ball screw drive assembly moves one of the moving table assemblies to the side and to one end of the horizontal direction of the rack;

[0170] 2. Place the product carrier on the side of the moving table assembly, raise the stop plate to the highest position, and place it on the product heating structure on the stop plate;

[0171] 3. The product heating structure heats the product, and the stop plate drops to the lowest position;

[0172] 4. Place the membrane carrier on the movable table assembly at the side, specifically on the workbench;

[0173] 5. The ball screw assembly moves the mobile table assembly with the product carrier and the membrane carrier to the bottom of the reaction chamber, and the other mobile table assembly moves to the side;

[0174] 6. The reaction chamber up and down displacement mechanism moves the reaction chamber down to the sealing and fitting table panel, and the reaction chamber is divided into an upper chamber and a lower chamber by a membrane sheet;

[0175] 7. The U-shaped lamp in the heating chamber heats the diaphragm, and the upper and lower chambers in the reaction chamber are evacuated separately;

[0176] 8. The stop plate drives the product to move upward;

[0177] 9. The upper chamber in the reaction chamber is filled with high-pressure gas, and the membrane coating is completed;

[0178] 10. While carrying out steps 6 / 7 / 8 / 9 above, place the product carrier and the film carrier on another set of mobile table combinations;

[0179] 11. The reaction chamber rises and leaves the moving table assembly where the membrane coating is completed;

[0180] 12. The ball screw drive assembly moves the mobile stage assembly with the diaphragm coated to the side, and at the same time, another mobile stage assembly moves to the bottom of the reaction chamber, and returns to step 6 to repeat;

[0181] 13. The ejector pin of the product ejection assembly lifts up the product carrier plate and the diaphragm carrier plate together;

[0182] 14. Take away the product carrier, film carrier and the finished film-coated products together;

[0183] 15. The ejector pin of the product ejection assembly descends, and then a new product carrier and diaphragm carrier are placed to complete a cycle of action.

[0184] The flipping action of the reaction chamber is as follows: Fig.14 As shown, the reaction chamber up-and-down displacement mechanism 320 moves the reaction chamber 310 to the uppermost position; the guide rail moving mechanism 340 moves the left vertical guide rail 332 and the right vertical guide rail 333 downward until the rollers 331 in the two are completely disengaged; at this time, the flip guide rail 354 is located between the two flip rollers 353, and the reaction chamber flipping mechanism 350 is actuated, that is, the flip swing arm 352 rotates, and the flip roller 353 presses the flip guide rail 354 to flip the reaction chamber 310 until the opening faces the front, as shown in FIG. Fig.15 shown.

[0185] Using the production process of the above-mentioned fully automatic pressure difference coating production line, the action of each coating machine 10 is independent, and each coating machine 10 includes the following steps:

[0186] S1, one of the transfer devices 30 moves the product carrier 210 and the film carrier 220 on the corresponding infeed conveying device 20 to the corresponding moving platform assembly 200 of the coating machine 10;

[0187] S2, the mobile table assembly 200 with the product and the film placed thereon moves to the mold closing position, the coating machine 10 closes the mold for production, and coats the film onto the product; at the same time, another transfer device 30 moves the product carrier plate 210 and the film carrier plate 220 on another feeding conveying device 20 to another group of mobile table assemblies 200 of the coating machine 10;

[0188] S3, the moving table assembly 200 that has completed the coating action moves out of the mold closing position and then opens the mold, and another set of moving table assemblies 200 moves to the mold closing position and then closes the mold for production;

[0189] S4, while the previous step of mold closing production is in progress, the transfer device 30 moves the product coated with the film to the finished product output device 40 for output, and then the transfer device 30 moves the product carrier 210 and the film carrier 220 on the feed conveying device 20 to the moving table assembly 200;

[0190] S5. Return to step S2 and execute the loop.

[0191] When two coating machines 10 arranged in parallel work together, the following principle is followed, that is, during the working process, the transfer device 30 timely moves the film-coated products of the transfer station to the finished product output device 40 for output, and the transfer device 30 timely moves the product carrier 210 and the film carrier 220 to the transfer station's mobile table assembly 200. The transfer station, i.e., the mobile table assembly 200, moves to the operating range of the transfer device 30, that is, one end of the horizontal guide rail corresponding to the transfer device 30.

[0192] The fully automatic differential pressure coating production line eliminates the diaphragm shearing equipment and simplifies the alignment structure of the diaphragm. It only needs to position the product carrier and the diaphragm carrier to achieve the alignment of the product and the diaphragm, and the structure of the overall equipment has been simplified. It uses a double moving table, one for coating, and the other for taking and placing the product and the diaphragm at the same time. The manipulator or other conveying equipment that cooperates with it does not need to be idle and wait, and the production efficiency has been greatly improved. Compared with the original production line, the overall efficiency is increased by 30-40%; it can be used in unmanned workshops to achieve unmanned operation and save labor costs.

[0193] In summary, the utility model is as described in the specification and the illustrations, and actual samples are made and tested for multiple times. From the test results, it is proved that the utility model can achieve the expected purpose and its practicality is beyond doubt. The above embodiments are only used to facilitate the description of the content of the utility model, and are not formally limited to it; any equivalent embodiment made by partial changes or modifications made by anyone with common knowledge in the technical field of the utility model without departing from the scope of the technical features and similar features of the utility model, using the technical content disclosed by the utility model, belongs to the protection scope of the utility model.

Claims

1. A fully automatic pressure differential coating production line, characterized by: It comprises a coating machine (10), two feeding conveying devices (20), two transfer devices (30), two finished product output devices (40) and a control system (600); The coating machine (10) has two sets of moving table assemblies (200); The feed conveying device (20), the transfer device (30) and the finished product output device (40) are arranged in sequence according to the conveying direction and are symmetrically located at two ends of the coating machine (10); The feed conveying device (20) conveys a product carrier plate (210) and a membrane carrier plate (220), wherein the product carrier plate (210) and the membrane carrier plate (220) respectively position the product and adhere and fix the membrane; The transfer device (30) moves the product carrier plate (210) and the membrane carrier plate (220) onto the moving table assembly (200) for coating, and moves the coated product to the finished product output device (40) for output; The control system (600) is electrically connected to the coating machine (10), the two feeding and conveying devices (20), the two transferring devices (30), and the two finished product output devices (40) to achieve automated control.

2. The fully automatic pressure difference coating production line according to claim 1 is characterized in that: It comprises two coating machines (10), wherein the two coating machines (10) are arranged in parallel.

3. The fully automatic pressure difference coating production line according to claim 1 is characterized in that: The feed conveying device (20) comprises a product conveying mechanism (21) and a membrane conveying mechanism (22), which are arranged side by side, the product conveying mechanism (21) conveys a product carrier plate (210), and the membrane conveying mechanism (22) conveys a membrane carrier plate (220).

4. The fully automatic pressure difference coating production line according to claim 1 is characterized in that: The transfer device (30) comprises a robot.

5. The fully automatic pressure difference coating production line according to claim 1 is characterized in that: The coating machine also includes a frame assembly (100) and a reaction chamber assembly (300); The rack assembly (100) is provided with a rack (110); Two groups of the movable platform assemblies (200) are arranged side by side on the frame (110) and can move horizontally back and forth on the frame (110); and the two groups of the movable platform assemblies (200) respectively place separable product carrier plates (210) and membrane carrier plates (220); The reaction chamber assembly (300) is arranged on the frame (110), located above the moving table assembly (200), and can move vertically up and down; When one group of the movable table assemblies (200) moves to the position directly below the reaction chamber assembly (300), the reaction chamber assembly (300) moves downward to cover the product and the film to perform a covering action, while another group of the movable table assemblies (200) performs a taking and placing action of other product carriers (210) and film carriers (220).

6. The fully automatic pressure difference coating production line according to claim 5 is characterized in that: The mobile platform assembly (200) comprises a mobile support frame (230), a stop plate assembly (240) and a workbench (250); The movable support frame (230) is movably arranged on the frame (110), and the stop plate assembly (240) and the workbench (250) are arranged in sequence upward thereon; The stop plate assembly (240) is provided with a stop plate (241), and the stop plate (241) can move up and down between the movable support frame (230) and the workbench (250), and a product carrier plate (210) is placed on the stop plate (241); The workbench (250) is a hollow structure (251) that runs through from top to bottom, with a membrane carrier plate (220) placed on the top; The stop plate (241) drives the product to move upward through the hollow structure (251) of the workbench (250) and to cover the diaphragm.

7. The fully automatic pressure difference coating production line according to claim 6 is characterized in that: The size of the hollow structure (251) matches the shape of the product carrier (210) and positions the product carrier (210); A first positioning structure (260) is provided between the workbench (250) and the membrane carrier plate (220), and a second positioning structure (270) is provided between the membrane carrier plate (220) and the product carrier plate (210).

8. The fully automatic pressure difference coating production line according to claim 6 is characterized in that: The stop plate assembly (240) is provided with a stop plate moving structure (242), which comprises a moving main shaft (242a), a first upper swing arm (242b), a second upper swing arm (242c), a first lower swing arm (242d), a second lower swing arm (242e), an upper horizontal axis (242f), a middle horizontal axis (242g), a first lower horizontal axis (242h), a second lower horizontal axis (242i), a first support seat (242j), a second support seat (242k) and a stop plate motor driving device (242l); The movable main shaft (242a) is arranged vertically, with one end fixing the stop plate (241) and the other end being penetrated by the upper horizontal shaft (242f), and the two ends of the upper horizontal shaft (242f) are rotatably connected to the first upper swing arm (242b) and the second upper swing arm (242c); The middle horizontal axis (242g) passes through and rotatably connects the first upper swing arm (242b) and the second upper swing arm (242c), and two ends of the middle horizontal axis (242g) are fixedly connected outwardly to the first lower swing arm (242d) and the second lower swing arm (242e); The first lower horizontal shaft (242h) is rotatably connected to the first support seat (242j), one end of which is fixedly connected to the first lower swing arm (242d), and the other end of which is connected to the stop plate motor drive device (242l); One end of the second lower horizontal shaft (242i) is rotatably connected to the second support seat (242k), and the other end is fixedly connected to the second lower swing arm (242e); The first support seat (242j) and the second support seat (242k) are arranged on the movable support frame (230); The stop plate motor drive device (242l) rotates, driving the first lower swing arm (242d), the second lower swing arm (242e), the first upper swing arm (242b) and the second upper swing arm (242c) to rotate, driving the movable main shaft (242a) to move up and down; when the movable main shaft (242a) moves upward until the axes of the upper horizontal axis (242f), the middle horizontal axis (242g), the first lower horizontal axis (242h) and the second lower horizontal axis (242i) are in the same vertical plane, the stop plate (241) is sealed and fitted with the workbench (250).

9. The fully automatic pressure difference coating production line according to claim 6 is characterized in that: The stop plate assembly (240) is also provided with a product heating structure (243) located between the stop plate (241) and the product carrier plate (210).

10. The fully automatic pressure difference coating production line according to claim 6 is characterized in that: The movable platform assembly (200) further comprises a product ejection assembly (280) provided with a plurality of product ejection pins (281); the product ejection pins (281) are located at the lower part of the product carrier plate (210), penetrate the workbench (250), and can move up and down.

11. The fully automatic pressure difference coating production line according to claim 5 is characterized in that: The reaction chamber assembly (300) comprises a reaction chamber (310) and a reaction chamber up and down displacement mechanism (320); The reaction chamber up-and-down displacement mechanism (320) comprises a reaction chamber motor drive device (321), a first upper rotating arm (322), a second upper rotating arm (323), a first upper connecting shaft (324), a second upper connecting shaft (325), a first connecting seat (326), a second connecting seat (327), a middle connecting shaft (328), a first lower rotating arm (329), a second lower rotating arm (32a), a first lower connecting shaft (32b) and a second lower connecting shaft (32c); The first upper connecting shaft (324), the second upper connecting shaft (325), the middle connecting shaft (328), the first lower connecting shaft (32b) and the second lower connecting shaft (32c) are all arranged horizontally; The reaction chamber motor drive device (321) is fixed on the frame (110); The first upper connecting shaft (324) is rotatably connected to the first connecting seat (326), one end of which is fixedly connected to the first upper rotating arm (322), and the other end of which is connected to the reaction chamber motor driving device (321); One end of the second upper connecting shaft (325) is fixedly connected to the second upper rotating arm (323), and the other end is rotatably connected to the second connecting seat (327); The first connecting seat (326) and the second connecting seat (327) are respectively fixed on the frame (110); One end of the middle connecting shaft (328) is fixedly connected to the first upper rotating arm (322) and is rotatably connected to the first lower rotating arm (329); the other end is fixedly connected to the second upper rotating arm (323) and is rotatably connected to the second lower rotating arm (32a); One end of the first lower connecting shaft (32b) is rotatably connected to the first lower rotating arm (329), and the other end is fixedly connected to one side of the reaction chamber (310); One end of the second lower connecting shaft (32c) is rotatably connected to the second lower rotating arm (32a), and the other end is fixedly connected to the other side of the reaction chamber (310); The reaction chamber motor drive device (321) rotates to drive the reaction chamber (310) to move downward to cover the product and the diaphragm, and rotates until the center lines of the first upper connecting shaft (324), the second upper connecting shaft (325), the middle connecting shaft (328), the first lower connecting shaft (32b), and the second lower connecting shaft (32c) are located on the same vertical plane, and the reaction chamber (310) is sealed and fitted with the movable table assembly (200).

12. The fully automatic pressure difference coating production line according to claim 11 is characterized in that: The reaction chamber assembly (300) further comprises a reaction chamber guide rail mechanism (330), which comprises a plurality of rollers (331), a left vertical guide rail (332) and a right vertical guide rail (333); A plurality of rollers (331) are respectively fixed on two sides of the reaction chamber (310); The left vertical guide rail (332) and the right vertical guide rail (333) are respectively arranged on both sides of the reaction chamber (310); The plurality of rollers (331) are respectively located in the tracks of the left vertical guide rail (332) and the right vertical guide rail (333) and move up and down.

13. The fully automatic pressure difference coating production line according to claim 12 is characterized in that: The reaction chamber assembly (300) further comprises a guide rail moving mechanism (340), which is arranged on the frame (110) and is respectively connected to the left vertical guide rail (332) and the right vertical guide rail (333), so as to drive the left vertical guide rail (332) and the right vertical guide rail (333) to move up and down.

14. The fully automatic pressure difference coating production line according to claim 11 is characterized in that: The reaction chamber assembly (300) further comprises a reaction chamber flipping mechanism (350), which comprises a flipping drive device (351), a flipping swing arm (352), two flipping rollers (353) and a flipping guide rail (354); The turning drive device (351) is fixed on the frame (110); One end of the flip swing arm (352) is connected to the flip driving device (351), and the other end is provided with two flip rollers (353); The flip guide rail (354) is vertically fixedly connected to a side surface of the reaction chamber (310), and when flipping, the flip guide rail (354) is located between the two flip rollers (353).

15. The fully automatic pressure difference coating production line according to claim 11 is characterized in that: An upper heating cavity (311) and a lower reaction cavity (312) are provided inside the reaction chamber (310); a sealing glass plate (313) is provided between the heating cavity (311) and the reaction cavity (312); and the sealing glass plate (313) is sealedly connected to the reaction cavity (312).

16. The fully automatic pressure difference coating production line according to claim 15 is characterized in that: The reaction chamber (312) is provided with a membrane pressing plate (314) with a central opening for pressing and sealing the membrane; The membrane pressing plate (314) and the membrane divide the reaction chamber (312) into an upper chamber (312a) and a lower chamber (312b); A porous cover frame (315) is provided between the membrane pressing plate (314) and the sealing glass plate (313); The upper chamber (312a) outside the porous cover frame (315) is provided with an upper chamber air hole (312c) for ventilation inside and outside; The lower bin (312b) is provided with a lower bin air hole (312d) for ventilation inside and outside.

17. The fully automatic pressure difference coating production line according to claim 16 is characterized in that: A plurality of U-shaped lamp tubes (316) are provided in the heating cavity (311) to heat the diaphragm, and the heating cavity (311) and the lower bin (312b) are respectively provided with infrared detection components (317).

18. The fully automatic pressure difference coating production line according to claim 5 is characterized in that: The frame assembly (100) comprises a ball screw drive assembly (130) and two left and right horizontal guide rails (120); The two groups of movable platform assemblies (200) are arranged on the two horizontal guide rails (120), and the ball screw drive assembly (130) has two screw nuts (131) respectively connected to the two groups of movable platform assemblies (200).

19. The fully automatic pressure difference coating production line according to claim 16 is characterized in that: The coating machine further comprises a vacuum pump system (400) and an air source system (500), wherein the vacuum pump system (400) and the air source system (500) are respectively connected to the upper bin air holes (312c) and the lower bin air holes (312d) via pipelines, and the control system (600) is respectively electrically connected to the vacuum pump system (400), the air source system (500), the frame assembly (100), the mobile platform assembly (200) and the reaction bin assembly (300) to achieve automated operation.

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