Preparation system for membrane electrode

Abstract

The present invention relates to a preparation system for a membrane electrode, wherein a first pasting device at a second station adheres a first patch to a first side of a sheet to be processed, and then a rotating member continues to rotate to move the sheet to be processed with the first patch adhered thereto to a third station, and a flipping device at the third station flips the sheet to be processed with the first patch adhered thereto over, so that the first patch contacts the pasting position and the second side of the sheet to be processed is exposed, and the subsequent operations of the fourth and fifth stations are similar to those of the first and second stations, wherein the fourth station stacks the second patch on the other side of the sheet to be processed away from the first patch, i.e., the second side, and the second pasting device in the fifth station adheres the second patch to the second side of the sheet to be processed, thereby achieving affixed patches on both sides of the sheet to be processed. In this way, the preparation system can realize automatic flipping of the sheet to be processed, thereby achieving automatic pasting of patches on both sides of the sheet to be processed, which is more efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell production equipment, and in particular to a preparation system for a membrane electrode. Background Art

[0002] Proton exchange membrane fuel cells (PEMFCs) are fuel cells that convert chemical energy directly into electrical energy through the reaction of hydrogen and oxygen. Due to their high energy conversion efficiency, rapid startup at low temperatures, zero pollution, excellent durability, and high specific power, they are considered one of the best green energy sources of the 20th century. The membrane electrode is the core component of PEMFCs, and its manufacturing quality directly determines the overall lifespan of the cell.

[0003] Membrane electrodes are formed by laminating a five-in-one module and a gas diffusion layer, then cutting and shaping them. Currently, during the membrane electrode production process, the five-in-one module must be manually flipped over to attach the gas diffusion layer to both sides, making automated mechanical production impossible and resulting in low production efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide a preparation system for membrane electrodes with high production and processing efficiency to address the problem of low production and processing efficiency of existing membrane electrodes.

[0005] A preparation system for a membrane electrode, the preparation system having a first station, a second station, a third station, a fourth station, and a fifth station; the preparation system includes:

[0006] frame;

[0007] a rotating member rotatably disposed on the frame around its own axis, the rotating member having a bearing position, and the bearing position sequentially passes through the first station, the second station, the third station, the fourth station, and the fifth station during the rotation of the rotating member;

[0008] A first gripping mechanism is provided on the frame, and is used for stacking the sheet to be processed and the first patch in sequence on the carrying position located at the first workstation;

[0009] A first pasting device, provided on the frame and located at the second station, for pasting the first patch on the sheet to be processed;

[0010] A flipping device, provided on the frame and located at the third station, for flipping the sheet to be processed with the first patch attached thereto;

[0011] A second gripping mechanism is provided on the frame, and is used to transfer the second patch to the carrying position of the fourth station so that the second patch is stacked on the other side of the sheet to be processed away from the first patch; and

[0012] The second pasting device is arranged on the frame and located at the fifth station, and is used for pasting the second patch on the sheet to be processed.

[0013] For ease of explanation, the two opposite side surfaces of the sheet to be processed are defined as a first side and a second side, and when the sheet to be processed is placed on the supporting position located at the first workstation, the first side of the sheet to be processed is exposed, and the second side of the sheet to be processed is in contact with the supporting position.

[0014] By setting up the above-mentioned preparation system for membrane electrode, the sheet to be processed and the first patch are sequentially grasped by the first grasping mechanism and stacked on the supporting position located at the first station, the first patch is stacked on the first side of the sheet to be processed, the rotating part rotates to move the sheet to be processed and the first patch to the second station, the first pasting device at the second station fits the first patch and the first side of the sheet to be processed, and then the rotating part continues to rotate to move the sheet to be processed with the first patch bonded to the third station, the flipping device located at the third station flips the sheet to be processed with the first patch bonded over, so that the first patch contacts the supporting position and the second side of the sheet to be processed is exposed, the subsequent operations of the fourth and fifth stations are similar to those of the first and second stations, the fourth station stacks the second patch on the other side of the sheet to be processed away from the first patch, that is, the second side, the second pasting device in the fifth station fits the second patch with the second side of the sheet to be processed, thereby achieving that patches are affixed on both opposite sides of the sheet to be processed. In this way, compared with manual lamination, the preparation system can realize the automatic flipping of the sheet to be processed, thereby automatically pasting patches on both sides of the sheet to be processed, which is more efficient.

[0015] In one embodiment, the preparation system further includes a controller, a first detection mechanism provided on the first gripping mechanism, and a first detection platform provided on the frame, wherein the controller is electrically connected to the first gripping mechanism and the first detection mechanism respectively;

[0016] The first gripping mechanism places the sheet to be processed or the first patch on the first detection platform;

[0017] The first detection mechanism is used to detect the position information and / or defect information of the sheet to be processed or the first patch located on the first detection platform, and the controller controls the first grasping mechanism to transport the sheet to be processed or the first patch on the first detection platform according to the position information and / or defect information.

[0018] In one embodiment, the preparation system further includes a second detection mechanism provided on the second gripping mechanism and a second detection platform provided on the frame, the second detection mechanism is electrically connected to the controller, and the second detection platform is located on one side of the rotating member;

[0019] The second grasping mechanism places the second patch on the second detection platform. The second detection mechanism is used to detect the second patch and obtain the position information and / or defect information of the second patch. The controller controls the second grasping mechanism to transport the second patch on the second detection platform according to the position information and / or defect information.

[0020] In one embodiment, the rotating part is a turntable, the axis is the central axis of the turntable, and the first workstation, the second workstation, the third workstation, the fourth workstation and the fifth workstation are evenly spaced in sequence along the circumferential direction of the turntable with the central axis as the center.

[0021] In one embodiment, the number of the carrying positions is five, and the five carrying positions are evenly spaced along the circumference of the turntable.

[0022] In one embodiment, the preparation system also includes a molding device arranged on the frame, and the first gripping mechanism is used to transport the sheet to be processed with the first patch and the second patch attached to it to the molding device, and the molding device is used to post-process the sheet to be processed with the first patch and the second patch attached to it in sequence to form a membrane electrode.

[0023] In one embodiment, the preparation system further includes an impedance detection device disposed on the frame, the impedance detection device is located on the downstream side of the molding device, and the impedance detection device is used to detect the impedance of the membrane electrode.

[0024] In one embodiment, the preparation system further includes an airtightness detection device disposed on the frame, the airtightness detection device is located on the downstream side of the molding device, and the airtightness detection device is used to detect the airtightness of the membrane electrode.

[0025] In one embodiment, the preparation system further includes a material transfer mechanism provided on the frame, wherein the material transfer mechanism is connected to the molding equipment, the impedance detection equipment and the air tightness detection equipment, and is used to transfer the membrane electrode between the molding equipment, the impedance detection equipment and the air tightness detection equipment.

[0026] In one embodiment, the flipping device includes a support frame, an adsorption mechanism, a first connecting component and a material picking component;

[0027] The adsorption mechanism is disposed on the support frame so as to be reciprocatingly movable along a third direction and has a first adsorption surface for adsorbing or releasing the workpiece;

[0028] The first connecting component is reciprocably disposed on the support frame along a fourth direction that is angled with the third direction;

[0029] The picking member is rotatably connected to the first connecting assembly about a rotation axis perpendicular to the third direction, the picking member has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the picking member about the rotation axis, and the picking member has an alignment position and an avoidance position during the movement of the first connecting assembly in the fourth direction;

[0030] When the picking member is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface can be aligned with the second adsorption surface in the third direction;

[0031] When the material picking component is in the avoidance position, the adsorption mechanism is staggered with the first connecting component and the material picking component in the third direction respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a system for preparing a membrane electrode according to an embodiment of the present invention;

[0033] Figure 2 for Figure 1 A schematic structural diagram of a positioning device of the preparation system shown;

[0034] Figure 3 for Figure 2 A schematic diagram of a partial structure of the positioning device shown;

[0035] Figure 4 for Figure 3 A schematic diagram of the partial structure shown from another angle;

[0036] Figure 5 for Figure 2 A schematic diagram of the cooperation relationship between the rotation drive mechanism and the pressing drive member of the positioning device shown;

[0037] Figure 6 for Figure 2 A schematic structural diagram of a support assembly of a positioning device shown;

[0038] Figure 7 for Figure 6 A schematic structural diagram of the support assembly from another angle is shown;

[0039] Figure 8 for Figure 1 A schematic structural diagram of a first pasting device of the preparation system shown;

[0040] Figure 9 for Figure 1 A schematic structural diagram of the turning device of the preparation system shown;

[0041] Figure 10 for Figure 9 A partial structural diagram of the flip device shown;

[0042] Figure 11 for Figure 1 A schematic structural diagram of the molding equipment of the preparation system shown;

[0043] Figure 12 for Figure 1 A schematic structural diagram of an impedance detection device of the preparation system shown;

[0044] Figure 13 for Figure 1 Schematic diagram of the structure of the airtightness detection equipment of the preparation system shown. DETAILED DESCRIPTION

[0045] In order to facilitate understanding of the technical solution of the present invention, the processing object of the present invention is explained here; the sheet to be processed in the present invention is a five-in-one component, and the patch is a gas diffusion layer. At the same time, with regard to the bonding method of the existing five-in-one component (hereinafter referred to as five-in-one) and the gas diffusion layer, as well as the specific structure of the membrane electrode, it should be noted that the five-in-one refers to the structure formed by the superposition of the cathode frame, the catalyst layer, the proton exchange membrane, the catalyst layer and the anode frame. The bonding of the existing five-in-one and the carbon paper is done manually. The five-in-one and the carbon paper are both rectangular sheets, and the area of ​​the five-in-one is larger than that of the carbon paper. Two pieces of carbon paper are manually pasted on the two side surfaces of the five-in-one.

[0046] Manual operation is too inefficient, and the membrane electrode preparation system provided by the present invention can mechanize the bonding of the sheet to be processed and the patch, thereby improving efficiency.

[0047] See also Figure 1 and Figure 2 In one embodiment of the present invention, a preparation system 100 for a membrane electrode comprises a first station, a second station, a third station, a fourth station and a fifth station, and the preparation system comprises a frame 10, a rotating part 22, a first gripping mechanism 30, a first pasting device 40, a flipping device 50, a second gripping mechanism 60 and a second pasting device 70.

[0048] The rotating member 22 is rotatably disposed on the frame 10 around its own axis. The rotating member 22 has a supporting position 22. During the rotation of the rotating member 22, the supporting position 22 passes through the first station, the second station, the third station, the fourth station and the fifth station in sequence.

[0049] The first grabbing mechanism 30 is provided on the frame 10 , and is used for sequentially stacking the sheet to be processed and the first patch on the carrying position 22 located at the first work station.

[0050] The first pasting device 40 is provided on the frame 10 and is located at the second work station, and is used to paste the first patch on the sheet to be processed.

[0051] The flipping device 50 is provided on the frame 10 and is located at the third station, and is used for flipping the sheet to be processed on which the first patch is attached.

[0052] The second grabbing mechanism 60 is provided on the frame 10 and is used to transfer the second patch to the carrying position 22 of the fourth station so that the second patch is stacked on the other side of the sheet to be processed away from the first patch.

[0053] The second pasting device 70 is provided on the frame 10 and is located at the fifth station, and is used to paste the second patch on the other side of the sheet to be processed at the fourth station away from the first patch.

[0054] For ease of explanation, the two opposite side surfaces of the sheet to be processed are defined as a first side and a second side. When the sheet to be processed is placed on the supporting position 22 located at the first workstation, the first side of the sheet to be processed is exposed, and the second side of the sheet to be processed is in contact with the supporting position 22.

[0055] By setting up the above-mentioned preparation system for membrane electrode, the sheet to be processed and the first patch are sequentially grasped by the first grasping mechanism 30 and stacked on the supporting position 22 located at the first station, the first patch is stacked on the first side of the sheet to be processed, the rotating member 22 rotates to move the sheet to be processed and the first patch to the second station, the first pasting device 40 at the second station fits the first patch and the first side of the sheet to be processed, and then the rotating member 22 continues to rotate to move the sheet to be processed with the first patch fitted to the third station, the flipping device 50 located at the third station flips the sheet to be processed with the first patch fitted over, so that the first patch contacts the supporting position 22, and the second side of the sheet to be processed is exposed, the subsequent operations of the fourth and fifth stations are similar to those of the first and second stations, the fourth station stacks the second patch on the other side of the sheet to be processed away from the first patch, that is, the second side, the second pasting device 70 in the fifth station fits the second patch with the second side of the sheet to be processed, so that both sides of the sheet to be processed are fitted with patches. In this way, compared with manual lamination, the preparation system can realize the automatic flipping of the sheet to be processed, thereby automatically pasting patches on both sides of the sheet to be processed, which is more efficient.

[0056] It needs to be explained that the first patch and the second patch are essentially patches of the same specifications, and the first pasting device 40, the second pasting device 70 and the flipping device 50 are located at their corresponding workstations to perform corresponding processing on the workpiece rotated to the workstation. For example, the pasting device performs pasting processing, that is, pasting the sheet to be processed and the patch, and the flipping device 50 performs flipping processing, that is, turning over the sheet to be processed located at the supporting position 22.

[0057] In some embodiments, the rack 10 is a large installation platform on which various devices and mechanisms in the preparation system are installed.

[0058] See also Figure 1 Furthermore, the frame 10 is provided with a first patch material frame 122, a material frame 124 for unprocessed sheets, and a second patch material frame 126. The operator places the first patch, the unprocessed sheet, and the second patch into the corresponding material frames. The first gripping mechanism 30 respectively retrieves the first patch and the unprocessed sheet from the first patch material frame 122 and the unprocessed sheet material frame 124, while the second gripping mechanism 60 retrieves the second patch from the second patch material frame 126. The raw material frame provides a fixed location for retrieval of raw materials, facilitating automated operation and improving efficiency.

[0059] It can be understood that the positions of various devices or mechanisms in the preparation system can be set according to the supply and demand relationship. For example, if the first grabbing mechanism 30 is used to transfer the sheet to be processed or the first patch, the first grabbing mechanism 30 needs to be set on the peripheral side of the sheet material frame 124 to be processed and the first patch material frame 122, and the rotating part 22 also needs to be set on the peripheral side of the first grabbing mechanism 30 to ensure that the first grabbing mechanism 30 transfers the sheet to be processed or the first patch to the rotating part 22.

[0060] See also Figure 3 and Figure 4 In some embodiments, the preparation system further includes a rotary drive member 21, which is disposed on the frame 10 and is configured to rotate the rotary drive member 21. Furthermore, the preparation system further includes a controller, which is electrically connected to the rotary drive member 21, the first gripping mechanism 30, the first pasting device 40, the second gripping mechanism 60, and the second pasting device 70, respectively, to control the automated operation of each mechanism and device.

[0061] Specifically, the rotary drive element 21 is a DD (Direct Driver) motor, and the controller can be a single chip microcomputer for mechanical control. Those skilled in the art can select the type of controller and drive element according to actual conditions, which will not be elaborated here.

[0062] See also Figure 1In some embodiments, the preparation system further includes a first detection mechanism disposed on the first gripping mechanism 30 and a first detection platform 121 disposed on the frame 10, and the controller is electrically connected to the first gripping mechanism 30 and the first detection mechanism, respectively. The first gripping mechanism 30 places the sheet to be processed or the first patch on the first detection platform 121. The first detection mechanism is used to detect position information and / or defect information of the sheet to be processed or the first patch located on the first detection platform 121. The controller controls the first gripping mechanism 30 to transfer the sheet to be processed or the first patch on the first detection platform 121 based on the position information and / or defect information.

[0063] In this way, the first detection platform 121 and the first detection mechanism cooperate to ensure that the sheet to be processed or the first patch is aligned with the sheet to be processed when the first gripping mechanism 30 transfers the sheet to be processed or the first patch to the carrying position 22 located at the first workstation, thereby improving the accuracy of pasting.

[0064] In addition, the first detection mechanism can also detect defects in the sheet to be processed or the first patch to obtain defect information of the sheet to be processed or the first patch. The controller transfers the sheet to be processed or the first patch on the first detection platform 121 to the carrying position 22 located at the first workstation or to a position for collecting defective materials based on the defect information, thereby avoiding the use of defective materials and improving product reliability.

[0065] Furthermore, the first detection platform 121 is a transparent platform, and a light source is correspondingly arranged below the first detection platform 121. The light emitted by the light source passes through the transparent platform, thereby illuminating the piece to be processed or the first patch on the first detection platform 121, facilitating the detection of the first detection mechanism.

[0066] In some embodiments, the preparation system also includes a second detection mechanism arranged on the second grasping mechanism 60 and a second detection platform 123 arranged on the frame 10. The second detection mechanism is electrically connected to the controller. The second detection platform 123 is located on one side of the rotating part 22. The second grasping mechanism 60 places the second patch on the second detection platform 123. The second detection mechanism is used to detect the second patch and obtain the position information of the second patch. The controller controls the second grasping mechanism 60 to place the second patch on the second detection platform 123 on the carrying position 22 located at the fourth workstation according to the position information.

[0067] Similarly, the second inspection platform 123 and the second inspection mechanism cooperate to ensure that the second patch is aligned with the unprocessed patch in the fourth station's loading position 22 when the second patch is transferred to the fourth station's loading position 22, thereby improving the accuracy of the attachment. Furthermore, the second patch can be inspected for defects, preventing the use of defective materials and improving product reliability.

[0068] It should be noted that, in order to improve efficiency, the grasping mechanism usually obtains the raw materials from the raw material frame at a fixed position, and also places them in a fixed position on the supporting position 22. Therefore, it is necessary to ensure the accuracy of placement. In order to ensure the accuracy of placement, it is necessary to ensure the accuracy of grasping. The raw materials in the material frame are placed by the operator, and there may be deviations when placing them. After grasping, the raw materials are placed on the detection platform. The detection platform is usually equipped with a reference object. The detection mechanism set on the grasping mechanism can re-grab the raw materials based on the relative position between the reference object and the raw materials on the detection platform to ensure the grasping accuracy, thereby ensuring the accuracy of the stacking between the patch and the sheet to be processed.

[0069] Specifically, the first detection mechanism and the second detection mechanism have the same function and structure, and are both CCD vision systems. The vision system is well known to those skilled in the art, so it will not be described in detail.

[0070] In some embodiments, the first grasping mechanism 30 and the second grasping mechanism 60 are both industrial robots. Industrial robots are robots that automatically grasp or transfer operations after being given a program. They are common in industrial automation production sites, so they will not be described in detail.

[0071] See also Figure 2 In some embodiments, the rotating member 22 is a turntable, and the axis is the central axis of the turntable. The first, second, third, fourth, and fifth stations are evenly spaced along the circumference of the turntable, centered around the central axis. In other words, during one rotation of the turntable, the support station 22 on the turntable can sequentially pass through the first, second, third, fourth, and fifth stations. Each station switch is performed at the same rotation angle, ensuring smooth operation.

[0072] Furthermore, there are five loading positions 22, which are evenly spaced along the circumference of the turntable. Thus, the five loading positions 22 can simultaneously correspond to five workstations, and the workpieces on the five loading positions 22 can be operated on by the five workstations. During operation, five sheets to be processed can be bonded to the patch for each rotation of the turntable, greatly improving efficiency.

[0073] See also Figure 2-Figure 4 In some embodiments, a membrane electrode preparation system includes a positioning device 20, which includes the aforementioned frame 10, a rotating member 22, and a rotating drive member 21. It should be noted that the frame 10 in the positioning device 20 may also be a portion of the frame 10, as long as it is convenient to install other structures in the positioning device 20.

[0074] Furthermore, the positioning device 20 also includes a sensor bracket 29 and a photoelectric sensor. The sensor bracket 29 is connected to the frame 10. The photoelectric sensor 29 is arranged on the sensor bracket to determine the starting position of the rotating member 22. That is, when the rotating member 22 rotates to the position that triggers the photoelectric sensor, the rotating member 22 is at the starting position. The subsequent rotating driving member 21 only needs to drive the rotating member 22 to rotate a preset angle.

[0075] In some embodiments, the positioning device 20 also includes a positioning assembly 24, which includes a mounting plate 242 and a plurality of positioning members 244. The mounting plate 242 is arranged on one side of the rotating member 22, and the plurality of positioning members 244 are arranged on the side of the mounting plate 242 away from the rotating member 22 to form the above-mentioned supporting position for placing the sheet to be processed.

[0076] In actual application, the mounting plate 242 is provided with a plurality of strip holes, and each positioning member 244 includes a positioning pin and a nut threadedly connected to the positioning pin. Each positioning pin is passed through a corresponding strip hole, and the nut is connected to the positioning pin. The positioning pin can move in the strip hole and is fixed by the nut. In this way, the size of the bearing position can be adjusted to accommodate sheets to be processed of different sizes.

[0077] In some embodiments, the positioning device 20 further includes a rotary clamping mechanism 26 having a clamping end located on a side of the rotating member 22 facing away from the frame 10 . The rotary clamping mechanism 26 includes a clamping state and a releasing state.

[0078] When the rotary clamping mechanism 26 is in the clamping state, the clamping end presses against the side of the sheet to be processed in the support position away from the mounting plate 242 . When the rotary clamping mechanism 26 is in the releasing state, the clamping end separates from the sheet to be processed in the support position.

[0079] It can be understood that when the rotary clamping mechanism 26 is in the released state, the sheet to be processed on the supporting position can be removed or placed on the supporting position, and when the rotary clamping mechanism 26 is in the clamping state, the sheet to be processed on the supporting position can be clamped and flattened.

[0080] See also Figure 5 Furthermore, the rotary clamping mechanism 26 includes a mounting member and a clamping assembly. The mounting member is mounted on the rotating member 22. The clamping assembly includes a clamping end, and the clamping assembly is reciprocatingly movable along a first direction on the mounting member. During the reciprocating movement of the clamping assembly along the first direction, the clamping end can approach or move away from the mounting plate 242.

[0081] In actual application, the rotating member 22 is provided with a mounting opening 222 extending through its two opposite sides along the first direction. The mounting member is mounted in the mounting opening 222. The mounting member has mounting holes extending through its two opposite ends along the first direction. The clamping assembly is movably disposed in the mounting holes along the first direction. The clamping assembly can rotate around the axis of the mounting hole during movement along the first direction, so that the clamping end moves along a preset trajectory. Figure 3 , the first direction is the up-down direction.

[0082] The clamping end has a clamping position and an avoidance position during the movement along the preset trajectory. When the rotary clamping mechanism 26 is in the clamping state, the clamping end is in the clamping position to clamp and flatten the sheet to be processed on the supporting position; when the rotary clamping mechanism 26 is in the released state, the clamping end is in the avoidance position, and the sheet to be processed can be placed on the supporting position or the sheet to be processed on the supporting position can be removed.

[0083] It needs to be explained that the clamping assembly rotates around the axis of the mounting hole while moving in the first direction, so that the clamping end moves along a preset trajectory. Therefore, the movement of the clamping end along the preset trajectory means that the clamping end makes a linear motion in the first direction and rotates around the axis of the mounting hole in a plane perpendicular to the first direction. The combined motion trajectory of the linear motion and the rotation is the preset trajectory.

[0084] In some embodiments, the mounting member includes a connecting portion 261 and a cam portion 262 fixedly connected to each other, the connecting portion 261 is connected to the side of the rotating member 22 facing away from the frame 10, the cam portion 262 extends toward the frame 10 along the first direction and passes through the mounting opening 222, and the mounting hole passes through the connecting portion 261 and the cam portion 262 along the first direction.

[0085] Furthermore, the cam portion 262 defines a spiral groove 2622 that communicates with the mounting hole. One end of the spiral groove 2622 extends through the end of the cam portion 262 facing away from the connecting portion 261, and the other end of the spiral groove 2622 spirally extends along a first direction toward the connecting portion 261. It will be understood that the connecting portion 261 is connected to the rotating member 22, while the cam portion 262 is disposed through the mounting opening 222. Therefore, the radial dimension of the connecting portion 261 is larger than the radial dimension of the mounting opening 222, while the radial dimension of the cam portion 262 is smaller than the radial dimension of the mounting opening 222.

[0086] In some embodiments, the clamping assembly includes a connecting column 263, a cantilever 264 and a pressure block 265. The connecting column 263 is movably arranged in the mounting hole along a first direction, and the connecting column 263 can rotate around the axis of the mounting hole during the movement along the first direction; the cantilever 264 is connected to one end of the connecting column 263, and the pressure block 265 is connected to the end of the cantilever 264 away from the connecting column 263, and the pressure block 265 has a clamping end facing away from the cantilever 264, and the clamping end faces the rotating part 22.

[0087] It can be understood that the pressing end is the surface of the pressing block 265 facing the rotating part 22. When this surface is pressed against the sheet to be processed, the sheet to be processed can be fixed in the bearing position and the edge of the sheet to be processed can be flattened to facilitate processing.

[0088] Furthermore, the pressing assembly further includes a follower 266 , which is fixedly connected to the connecting post 263 and extends into the spiral groove 2622 to move in the spiral groove 2622 along with the connecting post 263 .

[0089] The connecting column 263 is movable in the mounting hole along the first direction and is rotatable around the axis of the mounting hole. That is to say, the connecting column 263 is movably arranged in the mounting hole, and the follower 266 connected to the connecting column 263 extends into the spiral groove 2622. When the connecting column 263 moves along the first direction, the follower 266 will move along the spiral groove 2622. The spiral groove 2622 extends spirally along the first direction, thereby driving the connecting column 263 to rotate. Therefore, it is only necessary to drive the connecting column 263 to move along the first direction to simultaneously make the connecting column 263 rotate around the axis of the mounting hole.

[0090] Specifically, the follower 266 is a roller rotatably connected to the connecting post 263 around its own axis, so that the follower 266 can move more smoothly in the spiral groove 2622 when the connecting post 263 moves along the first direction.

[0091] In some embodiments, the positioning device 20 further includes a pressing drive member 27 , which is disposed on the frame 10 . The pressing drive member 27 is configured to drive the pressing assembly to move along a first direction when the rotating member 22 rotates to a preset position.

[0092] Furthermore, when the rotating member 22 rotates to a preset position, the driving end of the pressing driving member 27 can abut against the end of the connecting column 263 facing the frame 10 during the extension and contraction process, thereby driving the connecting column 263 to move along the first direction. Specifically, the pressing driving member 27 is an electric cylinder or a pneumatic cylinder.

[0093] What can be confirmed is that the clamping drive 27 is arranged at the corresponding workstation, that is, there are actually at least five clamping drive members 27, which are respectively arranged at the first workstation, the second workstation, the third workstation, the fourth workstation and the fifth workstation, and are used to drive the rotary clamping mechanism 26 on the corresponding workstation to operate.

[0094] At the same time, for the clamping drive 27 to drive the rotary clamping mechanism 26 to operate, one clamping drive 27 can drive one rotary clamping mechanism 26 to operate, that is, ten rotary clamping mechanisms 26 need to be set up, or one clamping drive 27 can drive two rotary clamping mechanisms 26 to operate, that is, only five clamping drives 27 need to be set up.

[0095] In addition, it should be noted that the pressing drive member 27 can also be provided on the rotating member 22 . In this way, it is not necessary to ensure that the pressing drive member 27 is installed at a corresponding position on the frame 10 during installation.

[0096] In some embodiments, the clamping assembly also includes an adjusting member 267, which is connected to one end of the connecting column 263 away from the cantilever 264; the rotary clamping mechanism 26 also includes an elastic member 268, which is connected between the cam portion 262 and the adjusting member 267, and is used to provide an elastic force to move the adjusting member 267 away from the rotating member 22, thereby driving the connecting column 263 to move downward through the adjusting member 267.

[0097] In actual application, the adjusting member 267 is a nut, which is threadedly connected to the end of the connecting column 263 away from the cantilever 264. The elastic member 268 is a spring, which is sleeved on the connecting column 263, and one end of the spring abuts against the nut, and the other end abuts against the cam portion 262.

[0098] Specifically, the cam portion 262 is provided with an abutment portion, which is provided on the inner wall of the mounting hole. One end of the spring extends into the mounting hole and abuts against the abutment portion. Figure 2 For example, the connecting column 263 is pushed up along the first direction by pressing the driving member 27, and then the sheet to be processed on the supporting position is removed or the sheet to be processed is placed on the supporting position.

[0099] It should be noted that the connecting column 263 is passed through the mounting hole, but the cantilever 264 is connected to one end of the connecting column 263. Therefore, when the spring pushes the connecting column 263 to move downward, the clamping end moves from the avoidance position to the clamping position along a preset trajectory. If there is no piece to be processed on the bearing position at this time, the cantilever 264 may abut against the connecting part 261, and the connecting column 263 stops moving; if there is a piece to be processed on the bearing position at this time, the clamping end will press against the piece to be processed, and the connecting column 263 will also stop moving.

[0100] Combine Figure 5 It should be further explained that the movement of the connecting column 263 can be restricted by the spiral groove 2622, so the movement stroke of the connecting column 263 is determined, that is, the up and down movement of the connecting column 263 is carried out within a certain range. When there is no piece to be processed on the load-bearing position, the cantilever 264 may abut against the connecting part 261, or the connecting column 263 may stop moving downward before the cantilever 264 contacts the connecting part 261, so the cantilever 264 will not contact the connecting part 261.

[0101] In some embodiments, the positioning device 20 further includes a gasket, which is disposed on a side of the connecting portion 261 away from the cam portion 262 and is configured to abut against the cantilever 264 when the cantilever 264 moves downward.

[0102] In some embodiments, the positioning device 20 includes at least two groups of positioning components 24 and at least four groups of rotary clamping mechanisms 26. At least two groups of positioning components 24 are arranged at intervals along the circumferential direction of the turntable, and each positioning component 24 is provided with a group of rotary clamping mechanisms 26 on opposite sides along the circumferential direction of the turntable.

[0103] In actual application, the number of the positioning components 24 is five, that is, forming the five bearing positions in the above embodiment, and the number of the corresponding rotary pressing mechanisms 26 is ten.

[0104] See also Figure 6 and Figure 7 In some embodiments, the positioning device 20 further includes a plurality of support assemblies 28 disposed on the frame 10 and located between the frame 10 and the rotating member 22. The support assemblies 28 have a support end that abuts against a side of the rotating member 22 facing the frame 10. In actual applications, the plurality of support assemblies 28 are spaced apart along the circumference of the turntable.

[0105] In some embodiments, the support assembly 28 includes a mounting seat 282, an adjustment plate 284 and a rolling member 286. The mounting seat 282 is installed on the frame 10, the adjustment plate 284 is movably set on the mounting seat 282 along a first direction, and the rolling member 286 is set at the top of the adjustment plate 284. The top of the rolling member 286 is the above-mentioned support end, which is used to abut against the rotating member 22 to support the rotating member 22 when the rotating member 22 rotates, so that the rotation of the rotating member 22 is more stable. At the same time, the adjustment plate 284 can be moved along the first direction, which also makes the height of the rolling member 286 adjustable to adapt to rotating members 22 of different heights.

[0106] In actual application, the support assembly 28 also includes an adjustment block 288 and a locking member 289. The adjustment block 288 is fixedly connected to the mounting seat 282, and there is a moving space between the adjustment block 288 and the mounting seat 282. The adjustment plate 284 partially moves in the moving space. The locking member 289 is passed through the adjustment block 288 and abuts against the adjustment plate 284 in the moving space.

[0107] Specifically, the locking member 289 is a bolt to press the adjustment plate 284 and fix it relative to the mounting seat 282 when needed, or to loosen and move the adjustment plate 284.

[0108] See also Figure 8In some embodiments, the first pasting device 40 includes a pasting frame 42, a first linear module 44, a second linear module 46 and a pasting mechanism 48. The pasting frame 42 is arranged on the frame 10 and is located at the second workstation. The first linear module 44 is arranged on the pasting frame 42 longitudinally along the second direction. The second linear module 46 is reciprocatingly movably arranged on the first linear module 44 along the second direction. The pasting mechanism 48 is reciprocatingly movably arranged on the second linear module 46 along a third direction that is angled with the second direction. During the movement along the second direction and the third direction, the pasting mechanism 48 can paste the sheet to be processed and the first patch on the supporting position 22 located at the second workstation.

[0109] Among them, the second direction and the third direction are Figure 8 The purpose of the sticking mechanism 48 reciprocating along the second and third directions is to stick the tape on the sheet to be processed and the first patch in two directions. The sheet to be processed and the first patch are located on the upper surface of the turntable, and the sheet to be processed and the first patch are in sheet form. Therefore, the second and third directions are both parallel to the upper surface of the turntable.

[0110] It should also be noted that the linear module is a module including a track and a driving member. Taking the first linear module 44 as an example, the first linear module 44 includes a track longitudinally arranged on the pasting frame 42 along the second direction and a driving member arranged on the pasting frame 42. The second linear module 46 is reciprocatingly arranged on the track along the second direction, and the driving member is used to drive the second linear module 46 to move back and forth. At the same time, the driving member is also electrically connected to the controller. The controller controls the movement of the driving member, thereby controlling the first pasting device 40 to paste the sheet to be processed and the first patch.

[0111] Furthermore, the pasting mechanism 48 includes a rotating cylinder 482 and a tape assembly 484. The rotating cylinder 482 is arranged on the second linear module 46 so as to be reciprocatingly movable along the third direction, and the tape assembly 484 is arranged on the output shaft of the rotating cylinder 482 so as to rotate along the output shaft of the rotating cylinder 482 around an axis perpendicular to the upper surface of the turntable.

[0112] It needs to be explained that the tape assembly 484 outputs the tape along one direction. For example, when the tape assembly 484 moves along the second direction, the tape assembly 484 needs to output the tape along the second direction; and when the tape assembly 484 moves along the third direction, the tape assembly 484 needs to output the tape along the third direction, and the change of the output direction is achieved by rotating the cylinder 482.

[0113] In actual applications, the second direction and the third direction are perpendicular to each other, and in combination with the above embodiments, it can be seen that the first detection platform 121 cooperates with the first detection mechanism to ensure that the first grasping mechanism 30 places the sheet to be processed and the first patch at the accurate position of the supporting position 22. Therefore, in the supporting position 22 of the second workstation, the positions of the sheet to be processed and the first patch are fixed, that is, the moving path of the tape assembly 484 is unchanged. The first linear module 44, the second linear module 46, the rotary cylinder 482 and the tape assembly 484 of the controller are electrically connected, and the tape assembly 484 can be moved along a fixed path through a fixed program.

[0114] At the same time, one end of the tape output by the tape assembly 484 can be close to or away from the sheet to be processed and the first patch located at the supporting position 22. The tape assembly 484 is an existing structure, so it will not be described in detail.

[0115] See also Figure 9 In some embodiments, the flipping device 50 includes a support frame 51 and an adsorption mechanism 52. The adsorption mechanism 52 is reciprocally movable on the support frame 51 along the fourth direction, and the adsorption mechanism 52 has a first adsorption surface for adsorbing or releasing the workpiece.

[0116] See also Figure 9 and Figure 10 Furthermore, the flipping device 50 also includes a first connecting component 53 and a material picking component 54. The first connecting component 53 is reciprocably arranged on the support frame 51 along a fifth direction that is angled with the fourth direction. The material picking component 54 is rotatably connected to the first connecting component 53 around a rotation axis perpendicular to the fourth direction. The material picking component 54 has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the material picking component 54. The material picking component 54 has an alignment position and an avoidance position during the movement of the first connecting component 53 in the fifth direction.

[0117] When the picking member 54 is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface may be aligned with the second adsorption surface in the fourth direction.

[0118] When the material picking component 54 is in the avoidance position, the adsorption mechanism 52 is staggered from the first connecting component 53 and the material picking component 54 in the fourth direction.

[0119] Specifically, the fifth direction is perpendicular to the fourth direction, and the fourth direction is Figure 10 The up and down directions in the fifth direction are Figure 10 The left and right directions are in the middle, and when the flip device 50 is installed on the third station, the fourth direction is the direction perpendicular to the upper surface of the turntable.

[0120] When the flipping device 50 is placed on the third station, it is ensured that the first adsorption surface of the adsorption mechanism 52 can be close to or away from the supporting position 22 of the third station during movement along the fourth direction, that is, the first adsorption surface is facing the supporting position 22.

[0121] There are two situations when the second adsorption surface is parallel to or even aligned with the first adsorption surface, namely, the second adsorption surface faces the first adsorption surface and the side of the material picking component 54 facing away from the second adsorption surface faces the first adsorption surface.

[0122] Thus, when the picking member 54 moves along the fifth direction, it reaches a position sufficiently far away from the adsorption mechanism 52, where it can rotate in a circular motion, which is defined as the flip position. The picking member 54 is first moved to the flip position and then rotated to the first angle. At this point, the second adsorption surface of the picking member 54 is parallel to the first adsorption surface, and the side of the picking member 54 facing away from the second adsorption surface is oriented toward the first adsorption surface in the fourth direction. The picking member 54 is then moved along the fifth direction to between the adsorption mechanism 52 and the carrier 22 located at the third workstation, and to a position where the second adsorption surface is aligned with the first adsorption surface, so that the second adsorption surface faces the workpiece located at the third workstation.

[0123] The second adsorption surface adsorbs the workpiece, then moves to the flip position along the fifth direction, and continues to rotate until the second angle. At this time, the second adsorption surface is parallel to the first adsorption surface again, and the second adsorption surface faces the first adsorption surface. The workpiece on the second adsorption surface will also rotate accordingly. Next, the material picking part 54 continues to be moved along the fifth direction until the second adsorption surface is aligned with the first adsorption surface in the fourth direction again, and the second adsorption surface faces the first adsorption surface, and the workpiece is adsorbed on the second adsorption surface. If there is a certain distance between the second adsorption surface and the first adsorption surface at this time, the adsorption mechanism 52 can be moved in the fourth direction so that the first adsorption surface is close to the workpiece on the second adsorption surface, and the workpiece is adsorbed, and the second adsorption surface releases the workpiece at the same time.

[0124] Finally, the material picking member 54 is moved along the fifth direction to the avoidance position, and the adsorption mechanism 52 is moved along the fourth direction to put the workpiece adsorbed by the first adsorption surface back into the carrying position 22 located at the third station, thereby realizing the flipping of the workpiece.

[0125] In combination with the above embodiment, it is explained that when the second adsorption surface is parallel to the first adsorption surface, the material picking part 54 is first moved to the alignment position so that the second adsorption surface adsorbs the side of the sheet to be processed on which the first patch is attached, that is, the first side, and the second side of the sheet to be processed is exposed. Then the material picking part 54 is flipped 180 degrees in the flipping position, and the material picking part 54 is moved to the alignment position again. Then the distance between the first adsorption surface and the second adsorption surface is adjusted by moving the adsorption mechanism 52 along the fourth direction so that the first adsorption surface is close to the sheet to be processed on which the first patch is attached. Then the first adsorption surface adsorbs the second side of the sheet to be processed, the second adsorption surface releases the sheet to be processed and moves to the avoidance position, and the adsorption mechanism 52 moves along the fourth direction to put the sheet to be processed back to the supporting position 22. The sheet to be processed placed back in the supporting position 22 has been flipped, and the second side of the sheet to be processed is exposed.

[0126] At the same time, the picker 54 cannot move in the fourth direction. Since the picker 54 needs to attract the workpiece located on the support position 22, it is necessary to ensure that when the picker 54 rotates so that the second attraction surface is parallel to the first attraction surface but the side of the picker 54 facing away from the second attraction surface is facing the first attraction surface, the distance between the second attraction surface and the support position 22 in the fourth direction is small, ensuring that the second attraction surface can attract the workpiece when it moves above it. The support position 22 is a position on the upper surface of the turntable. The distance between the second attraction surface and the support position 22 is small, that is, the distance between the second attraction surface and the support position 22 is small, so the picker 54 cannot rotate in a circular motion when it is close to the turntable. Therefore, the picker 54 can only be moved to the flip position first to ensure that the picker 54 flips over.

[0127] See also Figure 9 and Figure 10 In some embodiments, the adsorption mechanism 52 includes a first connecting member 522 and an adsorption member 524. The first connecting member 522 is reciprocally movable on the support frame 51 along the fourth direction. The adsorption member 524 is connected to the first connecting member 522. The adsorption member 524 has a first adsorption surface, and the first adsorption surface is located on the side of the adsorption member 524 away from the first connecting member 522.

[0128] Furthermore, the flipping device 50 further includes a first telescopic driving member 55, which is disposed on the support frame 51. The telescopic end of the first telescopic driving member 55 is connected to the side of the adsorption member 524 connected to the first connecting member 522, and is used to drive the adsorption member 524 to move along the fourth direction. Of course, in other embodiments, the telescopic end of the first telescopic driving member 55 can be directly connected to the first connecting member 522 to indirectly drive the adsorption member 524 to move along the fourth direction.

[0129] In actual application, the support frame 51 has a processing space, the adsorption component 524 is arranged in the processing space, the first connecting member 522 includes at least two first guide rods, one end of the at least two first guide rods is connected to one side of the adsorption component 524, and the other end extends along the fourth direction and passes through the top of the support frame 51, and the first telescopic driving member 55 is arranged at the top of the support frame 51.

[0130] Specifically, the first telescopic driving member 55 is a cylinder, and the number of first guide rods is four, which are divided into two groups. The two first guide rods in the same group pass through one end of the support frame 51 and are connected by a connecting rod, and the connecting rod cannot pass through the top of the support frame 51, so that the first guide rod guides the movement of the adsorption member 524 along the fourth direction, and the connecting rod can also limit the movement of the adsorption member 524.

[0131] Of course, in some embodiments, the adsorption member 524 can be driven to move along the fourth direction by directly connecting the adsorption member 524 through the first telescopic driving member 55 alone without setting the first connecting member 522. However, in this case, there is a lack of guidance, which may cause a deviation in the position of the workpiece before and after flipping. Therefore, it is preferred to set the first connecting member 522 to achieve the movement of the adsorption member 524 along the fourth direction.

[0132] In some embodiments, the support frame 51 is provided with a guide portion extending along the fifth direction, and the first connecting assembly 53 includes a second connecting member 532, a first connecting plate 534, and a second guide rod 536. The second connecting member 532 is disposed on the guide portion for reciprocal movement along the fifth direction. One side of the first connecting plate 534 is fixedly connected to the second connecting member 532. One end of the second guide rod 536 is connected to a side of the first connecting plate 534 facing away from the second connecting member 532. The second guide rod 536 extends along the fourth direction away from the first connecting plate 534. The material picking member 54 is connected to the second guide rod 536 to move along with the second guide rod 536 in the fifth direction.

[0133] It can be understood that the cooperation between the second connecting member 532 and the guide portion is similar to the cooperation of the track, and the specific implementation is not limited.

[0134] Furthermore, the first connecting component 53 also includes a connecting block, which is connected to one side of the first connecting plate 534 connected to the second connecting member 532. The flipping device 50 also includes a second telescopic driving member 56 arranged on the support frame 51. The connecting block is connected to one side of the first connecting plate 534. The telescopic end of the second telescopic driving member 56 is connected to the connecting block, which is used to drive the connecting block to move along the fifth direction, thereby driving the first connecting plate 534 to move on the guide portion along the fifth direction.

[0135] In some embodiments, the flipping device 50 further includes a second connecting assembly 57, which is reciprocally movable along the fourth direction on the first connecting assembly 53, and the picking member 54 is rotatably connected to the second connecting assembly 57 about the rotation axis. Furthermore, the second connecting assembly 57 is reciprocally movable along the fourth direction on the second guide rod 536, and the picking member 54 is connected to the second connecting assembly 57.

[0136] It should be noted that, when the second connecting component 57 is provided, the material picking component 54 can be moved in the fifth direction and the fourth direction to move away from the turntable, thereby achieving unimpeded rotation of the material picking component 54 and flipping the workpiece 180 degrees. Moreover, if the second connecting component 57 is provided, the action of the adsorption mechanism 52 can be simply to put the flipped workpiece back on the supporting position 22, so the adsorption mechanism 52 can be set to move back and forth between two positions, one is a position away from the supporting position 22, and the other is a position close to the supporting position 22 to place the workpiece on the first adsorption surface on the supporting position 22, which can simplify the control program and facilitate operation. The corresponding material picking component 54 needs to ensure flipping and move to two positions corresponding to the adsorption mechanism 52 and the supporting position 22 to adsorb the workpiece of the supporting position 22 and flip the workpiece and then move the flipped workpiece to the adsorption mechanism 52.

[0137] At the same time, when the material picking part 54 is movable along the fourth direction and the adsorption mechanism 52 moves in the direction away from the carrying position 22 until the distance between it and the carrying position 22 is the largest, if the distance between the adsorption mechanism 52 and the carrying position 22 is large enough at this time to allow the material picking part 54 to rotate in a circle between the adsorption mechanism and the carrying position 22, then the material picking part 54 can also move directly along the fourth direction after adsorbing the workpiece and then flip over, without having to move away from the adsorption mechanism 52 and the turntable in the fifth direction.

[0138] Furthermore, the aforementioned space for ensuring rotation of the picking member 54 is to prevent other structures from interfering with the rotation of the picking member 54. When the picking member 54 is in the avoidance position, this is to prevent interference with the movement of the suction mechanism 52 along the fourth direction. The movement of the picking member 54 is actually achieved via the first connecting assembly 53 or the first connecting assembly 53 and the second connecting assembly 57. That is, when the picking member 54 is in the avoidance position, neither the first connecting assembly 53 nor the second connecting assembly 57 will interfere with the movement of the suction mechanism 52 along the fourth direction.

[0139] By setting up a second connecting component 57, the material picking part 54 can be moved in the fourth direction. When the workpiece is turned over and the second adsorption surface is moved to a position aligned with the first adsorption surface in the fourth direction, if there is a gap between the first adsorption surface and the second adsorption surface in the fourth direction at this time, the workpiece adsorbed on the second adsorption surface can be moved close to the first adsorption surface by moving the material picking part 54 in the fourth direction, that is, the above-mentioned adsorption mechanism 52 can only move between two positions.

[0140] Of course, in another embodiment, after the material picking part 54 is flipped over, the first adsorption surface and the second adsorption surface are aligned in the fourth direction. If there is a gap between the first adsorption surface and the second adsorption surface in the fourth direction at this time, the first adsorption surface can be moved close to the workpiece adsorbed on the second adsorption surface by moving the adsorption mechanism 52 in the fourth direction. There is no need to continue moving the material picking part 54, and after the adsorption mechanism 52 adsorbs the workpiece, the material picking machine 54 can be moved to the avoidance position, and the adsorption mechanism 52 directly moves down to the carrying position 22 to release the workpiece.

[0141] In some embodiments, the second connecting component 57 includes a second connecting plate 572 and a third connecting plate 574. The second connecting plate 572 is arranged on the first connecting component 53 so as to be reciprocatingly movable along the fourth direction. The third connecting plate 574 is arranged at an angle to the second connecting plate 572. The material picking component 54 is arranged on one side of the third connecting plate 574 so as to be rotatable around the rotation axis.

[0142] Furthermore, the second connecting assembly 57 also includes a linear bearing, which is arranged on the second connecting plate 572 along the fourth direction, and the second guide rod 536 is passed through the linear bearing along the fourth direction, so that the second connecting plate 572 can be reciprocated and moved on the second guide rod 536 along the fourth direction.

[0143] Specifically, there are four second guide rods 536 , corresponding to four linear bearings, to ensure that the second connecting plate 572 moves accurately along the fourth direction, thereby ensuring that the material picking component 54 moves accurately along the fourth direction.

[0144] In some embodiments, the flipping device 50 also includes a third telescopic drive member 58, which is arranged on the side where the first connecting plate 534 is connected to the second guide rod 536, and the telescopic end of the third telescopic drive member 58 is connected to the second connecting plate 572, for driving the second connecting plate 572 to move in the fourth direction.

[0145] In actual application, the second connecting component 57 is similar to being hoisted on one side of the first connecting plate 534 , and the second guide rod 536 guides the movement of the second connecting component 57 .

[0146] In some embodiments, the second connecting plate 572 has a U-shaped notch, and the third connecting plate 574 is connected to the second connecting plate 572 at an angle to the U-shaped notch of the second connecting plate 572, that is, the third connecting plate 574 is a U-shaped plate, and the material picking member 54 is rotatably connected to the third connecting plate 574 and is located in the middle of the U-shaped notch or the U-shaped plate.

[0147] In some embodiments, the flipping device 50 also includes a flipping mechanism, which includes a rotating drive member 591, a driving wheel 592, a synchronous belt 593 and a synchronous pulley 594. The rotating drive member 591, the driving wheel 592 and the synchronous pulley 594 are all arranged in the second connecting component 57. The synchronous belt 593 is connected between the rotating drive member 591 and the synchronous pulley 594 to drive the synchronous pulley 594 to rotate around the rotation axis. The material picking member 54 is connected to the synchronous pulley 594.

[0148] Furthermore, the flipping mechanism also includes a driven wheel, and the synchronous pulley 594 and the driven wheel are both rotatably arranged on the third connecting plate 574 around the rotation axis, and are respectively located on the opposite sides of the U-shaped structure, and the opposite sides of the material picking member 54 located between the U-shaped structures are respectively connected to the synchronous pulley 594 and the driven wheel to drive the material picking member 54 to rotate around the rotation axis.

[0149] In actual application, the flipping mechanism also includes a tensioning wheel 595, which is reciprocatingly arranged on the third connecting plate 574 and is located between the synchronous pulley 594 and the driving wheel 592. The synchronous belt 593 is wound around the tensioning wheel 595. The movement of the tensioning wheel 595 can adjust the tension of the synchronous belt 593, thereby preventing the synchronous belt 593 from slipping.

[0150] Specifically, the rotation driving member 591 is a servo motor.

[0151] In some embodiments, the flipping device 50 also includes a first detection mechanism, and the first detection mechanism and the rotating drive member 591 are both electrically connected to the controller. The first detection mechanism is used to detect the driven rotation angle of the synchronous pulley 594, and the controller controls the movement of the rotating drive member 591 according to the driven rotation angle.

[0152] The material picking member 54 is directly connected to the synchronous pulley 594. The rotation angle of the synchronous pulley 594 is the rotation angle of the material picking member 54. Therefore, the controller can control the rotation angle of the material picking member 54 according to the driven rotation angle of the synchronous pulley 594 to realize the flipping of the workpiece.

[0153] Furthermore, the radial dimension of the driving wheel 592 is the same as the radial dimension of the synchronous pulley 594. The flipping mechanism also includes a second detection mechanism and an adjuster. The second detection mechanism and the adjuster are both electrically connected to the controller. The second detection mechanism is used to detect the active rotation angle of the driving wheel 592. The adjuster is used to control the movement of the tensioning wheel 595. The controller controls the action of the adjuster according to the active rotation angle and the synchronous rotation angle, thereby tightening the synchronous belt 593.

[0154] Since the radial size of the driving wheel 592 is the same as the radial size of the synchronous pulley 594, when the synchronous belt 593 is stably transmitted, that is, when the synchronous belt 593 does not slip, the active rotation angle and the synchronous rotation angle are the same. If the angles measured by the two detection mechanisms are different, it means that the synchronous belt 593 is slipping, and the controller controls the regulator to adjust the tensioning roller to tension the synchronous belt 593.

[0155] It should be explained that the synchronous pulley 594 and the driven pulley can be rotatably arranged on the third connecting plate 574, which can be achieved by a rotating shaft and a bearing. The implementation method is relatively conventional and will not be elaborated here.

[0156] In addition, the radial size of the driving wheel 592 may also be different from the radial size of the synchronous pulley 594, but the difference between the active rotation angle and the synchronous rotation angle must be determined, that is, the operational relationship between the active rotation angle and the synchronous rotation angle under normal circumstances. After the controller obtains the active rotation angle and the synchronous rotation angle, it determines whether the connection meets the preset operational relationship. If it meets the requirements, it means that the operation is normal. If it does not meet the requirements, it means that the synchronous belt 593 is slipping.

[0157] In some embodiments, the material picking part 54 and the adsorption part 524 are both suction cups, and the corresponding flipping device 50 is also provided with a negative pressure device and a connecting pipe. The negative pressure device is electrically connected to the controller and is respectively connected to the material picking part 54 and the adsorption part 524 through the connecting pipe to generate negative pressure, thereby adsorbing the workpiece.

[0158] In other embodiments, the first connecting assembly 53 may be rotatably mounted on the support frame 51 about a rotation axis parallel to the fourth direction, and the material picking member 54 may have an aligned position and an escape position during the rotation of the first connecting assembly 53. In these embodiments, the other structures of the flipping device 50 remain unchanged, except that the first connecting assembly 53 is rotated to achieve the aligned position and the escape position of the material picking member 54. Those skilled in the art may design the structure according to the implementation method, and detailed description is omitted here.

[0159] In some embodiments, the second pasting device 70 has the same structure and function as the first pasting device 40 , and the only difference is that they are located at different workstations, so they will not be described in detail.

[0160] See also Figure 11 In some embodiments, the preparation system further includes a molding device 81 provided on the frame 10, the molding device 81 is located on one side of the rotating member 22, the first gripping mechanism 30 is used to transport the sheet to be processed with the first patch and the second patch pasted thereon to the molding device 81, and the molding device 81 is used to perform post-processing on the sheet to be processed with the first patch and the second patch pasted thereon in sequence to form a membrane electrode.

[0161] It should be noted that the molding device 81 is a conventional device for processing the sheets to be processed with patches pasted on both sides, including a molding frame 811, a vacuum platform 812, a third linear module 813, a fourth linear module 814 and a processing mechanism. The third linear module 813 is arranged on the top of the molding frame 811, the fourth linear module 814 is arranged on the frame 811, and the processing mechanism is arranged on the third linear module 813 so as to be reciprocatingly movable along the sixth direction, and the vacuum platform 812 is arranged on the fourth linear module 814 so as to be reciprocatingly movable along the seventh direction. The vacuum platform 812 is used to adsorb and fix the workpiece, and the vacuum platform 812 moves to the processing position along the seventh direction, and then the processing mechanism processes the workpiece on the vacuum platform 812 at the processing position during the movement along the sixth direction.

[0162] Specifically, the sixth direction is Figure 11 The left and right directions shown are Figure 11 The processing mechanism includes a laser 815, a coder 816, and a code scanner 817, which are respectively used for cutting, coding, and scanning the workpiece. The molding device 81 also includes a waste removal brush 818 and a waste box 819 for automatically processing and collecting waste.

[0163] See also Figure 1 In some embodiments, a transfer platform 125 is further provided on the frame 10. The transfer platform 125 is used to place the workpiece to be processed, which has patches already attached to both sides. In actual applications, by using five stations to process simultaneously, the efficiency of attaching patches to both sides of the workpiece to be processed is higher. However, the processing speed of the molding device 81 may not keep up with the attaching speed. Therefore, the transfer platform 125 is provided. The first grasping mechanism 30 grasps the workpiece to be processed, which has patches attached to it, from the attaching station at the fifth station and then places it on the transfer platform 125. After the molding device 81 completes the processing, the workpiece on the transfer platform 125 is transferred to the molding device 81.

[0164] See also Figure 12 In some embodiments, the preparation system further includes an impedance detection device 82 disposed on the frame 10. The impedance detection device 82 is located on the downstream side of the molding device 81. The impedance detection device 82 is used to detect the impedance of the membrane electrode.

[0165] Furthermore, the impedance detection device 82 includes an impedance tester 821, a downward pressure cylinder 822, an upper pressure plate 823, a lower pressure plate 824, a first transverse drive 824, and a first linear guide 826. The membrane electrode is placed on the lower pressure plate 824. Under the action of the first transverse drive 824 and the first linear guide 826, the lower pressure plate 824 moves below the upper pressure plate 823. The downward pressure cylinder 822 presses the upper pressure plate 823 downward to press the upper pressure plate 823 and the lower pressure plate 824 into close contact. The impedance tester is used to measure the impedance of the membrane electrode when the upper and lower pressure plates are pressed into close contact. Specifically, the first transverse drive 824 can be a cylinder, an electric cylinder, a ball screw, etc., which is not limited in this embodiment.

[0166] See also Figure 13 In some embodiments, the preparation system further includes an airtightness detection device 83 disposed on the frame 10. The airtightness detection device 83 is located on the downstream side of the molding device 81. The airtightness detection device 83 is used to detect the airtightness of the membrane electrode.

[0167] Furthermore, the airtightness testing device 83 includes a gas-liquid booster cylinder 831, a pressure sensor 832, an upper seal 833, a lower seal 834, a second transverse drive 835, and a second linear guide 836. The membrane electrode is placed on the lower seal 834. Under the action of the second transverse drive 835 and the second linear guide 836, the lower seal 834 moves below the upper seal 833. Under the action of the gas-liquid booster cylinder 831 and the pressure sensor 832, the upper and lower seals are pressed together to form a sealed cavity, in which the membrane electrode is located. Finally, the airtightness of the membrane electrode is tested by the airtightness testing circuit. Specifically, the second transverse drive 835 can be a pneumatic cylinder, an electric cylinder, a ball screw, etc., which is not limited in this embodiment.

[0168] It is understood that the impedance detection device 82 and the airtightness detection device 83 are conventional detection devices and are not described in detail here. Furthermore, the impedance detection device 82 and the airtightness detection device 83 can be positioned correspondingly, i.e., the impedance detection device 82 can be positioned downstream of the airtightness detection device 83, or the airtightness detection device 83 can be positioned downstream of the impedance detection device 82, as long as both are positioned downstream of the molding device 81.

[0169] In some embodiments, the preparation system also includes a material transfer device 84 arranged on the frame 10, and the material transfer device 84 is connected to the molding device 81, the impedance detection device 82 and the airtightness detection device 83, and is used to transfer the membrane electrode between the molding device 81, the impedance detection device 82 and the airtightness detection device 83.

[0170] Furthermore, the material moving device 84 includes a slide rail 842 arranged on the frame 10 longitudinally along the seventh direction and a third grasping mechanism 844 arranged on the slide rail 842 so as to be reciprocatingly movable along the seventh direction. The rotating part 22 and the slide rail 842 are spaced apart along the seventh direction, and the molding device 81, the impedance detection device 82 and the airtightness detection device 83 are arranged in sequence on one side of the slide rail 842 along the seventh direction with the position close to the rotating part 22 as the starting point. When the third grasping mechanism 844 moves along the slide rail 842, the membrane electrode can be transferred from the molding device 81 to the impedance detection device 82 and the airtightness detection device 83 or the airtightness detection device 83 and the impedance detection device 82 in sequence.

[0171] In practice, the third gripping mechanism 844 is driven by a material transfer cylinder. The third gripping mechanism 844, along with the first gripping mechanism 30 and the second gripping mechanism 60, are all industrial robots. It should also be noted that the aforementioned molding device 81, impedance detection device 82, airtightness detection device 83, material transfer cylinder, and third gripping mechanism 844 are all electrically connected to a controller for automated operation.

[0172] In some embodiments, there are two impedance detection devices 82, which are correspondingly arranged on opposite sides of the slide rail 842, and the airtightness detection devices 83 are divided into two groups, each group consisting of two. The two groups of airtightness detection devices 83 are correspondingly arranged on opposite sides of the slide rail 842, and the two airtightness detection devices 83 in each group are arranged at intervals along the seventh direction, and are also spaced apart along the seventh direction at the same time as the impedance detection device 82.

[0173] It is understandable that the speeds at which the above-mentioned different devices process workpieces are different, so the number of devices can be set accordingly according to the processing speed to improve processing efficiency.

[0174] In some embodiments, the preparation system also includes a finished material frame 92 arranged on the frame 10, and the finished material frame 92 is arranged adjacent to the air tightness detection equipment 83. Since the air tightness detection equipment 83 is arranged on both sides of the slide rail 842, the finished material frame 92 can also be regarded as being arranged adjacent to the slide rail 842 to facilitate the third grasping mechanism 844 to transfer the membrane electrode that has passed the airtightness detection to the finished material frame 92.

[0175] In some embodiments, the production system further includes a scrap bin 94 mounted on the frame 10. This bin is used to collect unqualified membrane electrodes. A controller is electrically connected to each device. Unqualified membrane electrodes detected by the impedance detection device 82 and the airtightness detection device 83 are transported to the scrap bin 94 via a third gripping mechanism 844. In practice, the number of finished product bins 92 is typically greater than the number of scrap bins 94.

[0176] In order to facilitate understanding of the technical solution of the present invention, the preparation process of the preparation system is described here:

[0177] The operator places the sheet to be processed and the first patch in the corresponding sheet material frame 124 and the first patch material frame 122. The first grasping mechanism 30 grasps the sheet to be processed and the first patch in turn and stacks them on the supporting position 22 located at the first workstation. During the transportation of the sheet to be processed and the first patch, they will first be placed on the first detection platform 121 to cooperate with the first detection mechanism for detection, and then re-grabbed and placed on the supporting position 22.

[0178] The turntable rotates a preset angle, and the sheet to be processed and the patch enter the second station and are pasted by the first pasting device 40, and then continues to rotate the preset angle, and the sheet to be processed and the patch with the pasting number are flipped over by the flipping device 50 to expose the other side of the sheet to be processed, and continues to rotate the preset angle, and the second gripping mechanism 60 stacks the second patch on the sheet to be processed at the fourth station, and the second gripping mechanism 60 passes through the second detection platform 123 on the way of transporting the second patch, and the second detection platform 123 cooperates with the second detection mechanism to ensure that the second patch is accurately stacked on the sheet to be processed, and then continues to rotate the preset angle and enters the fifth station, and the second pasting device 70 pastes the second patch on the other side of the sheet to be processed, so that patches are pasted on both sides of the sheet to be processed.

[0179] The first grabbing mechanism 30 transfers the sheet to be processed with patches on both sides to the molding equipment 81 for processing to generate a membrane electrode. The generated membrane electrode passes through the third grabbing mechanism 844 and enters the impedance detection equipment 82 and the airtightness detection equipment 83 in turn to perform impedance detection and airtightness detection in turn. Finally, the third grabbing mechanism 844 transfers the qualified membrane electrode to the finished product material frame 92, and transfers the unqualified membrane electrode to the waste material frame 94.

[0180] Among them, each device can be electrically connected to the controller to achieve fully automatic control.

[0181] Compared with the prior art, the membrane electrode preparation system provided by the present invention has at least the following advantages:

[0182] 1) The flipping device automatically flips the sheet to be processed, so that the patch can be automatically attached to both sides of the sheet to be processed, with high efficiency and high attachment accuracy;

[0183] 2) The entire preparation process is carried out automatically, further improving efficiency.

[0184] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0185] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A system for preparing a membrane electrode, characterized in that: The preparation system has a first station, a second station, a third station, a fourth station and a fifth station; the preparation system includes: frame; a rotating member rotatably disposed on the frame around its own axis, the rotating member having a bearing position, and the bearing position sequentially passes through the first station, the second station, the third station, the fourth station, and the fifth station during the rotation of the rotating member; A first gripping mechanism is provided on the frame, and is used for stacking the sheet to be processed and the first patch in sequence on the carrying position located at the first workstation; A first pasting device, provided on the frame and located at the second station, for pasting the first patch on the sheet to be processed; A flipping device, provided on the frame and located at the third station, for flipping the sheet to be processed with the first patch attached thereto; A second gripping mechanism is provided on the frame, and is used to transfer the second patch to the carrying position of the fourth station so that the second patch is stacked on the other side of the sheet to be processed away from the first patch; and A second pasting device is provided on the frame and located at the fifth station, and is used to paste the second patch on the sheet to be processed; A positioning device, comprising a mounting member, a pressing assembly, and a pressing drive member disposed at each of the bearing positions, wherein the mounting member comprises a connecting portion and a cam portion, wherein the connecting portion is connected to a side of the rotating member facing away from the frame, and the cam portion is provided with a spiral groove, wherein one end of the spiral groove passes through an end of the cam portion facing away from the connecting portion, and the other end of the spiral groove spirally extends along a first direction toward the connecting portion; The clamping assembly includes a connecting post, a cantilever, a pressure block and a follower, wherein the connecting post is movably provided in the mounting hole of the cam portion along a first direction, and the connecting post is rotatable around the axis of the mounting hole during movement along the first direction; the cantilever is connected to one end of the connecting post, the pressure block is connected to one end of the cantilever away from the connecting post, and the pressure block has a pressing end facing away from the cantilever, the pressing end facing the rotating member, the follower is fixedly connected to the connecting post, and the follower extends into the spiral groove to move with the connecting post in the spiral groove; The pressing driving member is connected to the connecting column.

2. The system for preparing a membrane electrode according to claim 1, characterized in that: The preparation system further includes a controller, a first detection mechanism provided on the first gripping mechanism, and a first detection platform provided on the frame, wherein the controller is electrically connected to the first gripping mechanism and the first detection mechanism respectively; The first gripping mechanism places the sheet to be processed or the first patch on the first detection platform; The first detection mechanism is used to detect the position information and / or defect information of the sheet to be processed or the first patch located on the first detection platform, and the controller controls the first grasping mechanism to transport the sheet to be processed or the first patch on the first detection platform according to the position information and / or defect information.

3. The system for preparing a membrane electrode according to claim 2, characterized in that: The preparation system further includes a second detection mechanism provided on the second gripping mechanism and a second detection platform provided on the frame, the second detection mechanism being electrically connected to the controller, and the second detection platform being located on one side of the rotating member; The second grasping mechanism places the second patch on the second detection platform. The second detection mechanism is used to detect the second patch and obtain the position information and / or defect information of the second patch. The controller controls the second grasping mechanism to transport the second patch on the second detection platform according to the position information and / or defect information.

4. The system for preparing a membrane electrode according to claim 1, characterized in that: The rotating part is a turntable, the axis is the central axis of the turntable, and the first workstation, the second workstation, the third workstation, the fourth workstation and the fifth workstation are evenly spaced in sequence along the circumferential direction of the turntable with the central axis as the center.

5. The system for preparing a membrane electrode according to claim 4, characterized in that: The number of the bearing positions is five, and the five bearing positions are evenly spaced along the circumference of the turntable.

6. The system for preparing a membrane electrode according to claim 1, characterized in that: The preparation system also includes a molding device arranged on the frame, and the first grasping mechanism is used to transport the sheet to be processed with the first patch and the second patch attached to it to the molding device, and the molding device is used to post-process the sheet to be processed with the first patch and the second patch attached to it in sequence to form a membrane electrode.

7. The system for preparing a membrane electrode according to claim 6, characterized in that: The preparation system further includes an impedance detection device disposed on the frame, the impedance detection device being located on the downstream side of the molding device, and the impedance detection device being used to detect the impedance of the membrane electrode.

8. The system for preparing a membrane electrode according to claim 7, characterized in that: The preparation system further includes an airtightness detection device disposed on the frame, the airtightness detection device is located on the downstream side of the molding device, and the airtightness detection device is used to detect the airtightness of the membrane electrode.

9. The system for preparing a membrane electrode according to claim 8, characterized in that: The preparation system also includes a material transfer mechanism arranged on the frame, which is connected to the molding equipment, the impedance detection equipment and the airtightness detection equipment, and is used to transfer the membrane electrode between the molding equipment, the impedance detection equipment and the airtightness detection equipment.

10. The system for preparing a membrane electrode according to claim 1, characterized in that: The turning device includes a support frame, an adsorption mechanism, a first connecting component and a material picking component; The adsorption mechanism is disposed on the support frame so as to be reciprocatingly movable along a third direction and has a first adsorption surface for adsorbing or releasing the workpiece; The first connecting component is reciprocably disposed on the support frame along a fourth direction that is angled with the third direction; The picking member is rotatably connected to the first connecting assembly about a rotation axis perpendicular to the third direction, the picking member has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the picking member about the rotation axis, and the picking member has an alignment position and an avoidance position during the movement of the first connecting assembly in the fourth direction; When the picking member is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface can be aligned with the second adsorption surface in the third direction; When the material picking component is in the avoidance position, the adsorption mechanism is staggered with the first connecting component and the material picking component in the third direction respectively.

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