Diaphragm roll changing and carrying equipment for lithium battery diaphragm production line

Abstract

The diaphragm roll changing and carrying equipment comprises a carrying frame and a coiled material box, the carrying frame is movably installed on the upper portion of the coiled material box, a lifting back plate is movably installed at the rear end of the carrying frame, a lifting base is fixedly installed on the outer surface of the rear end of a positioning side plate, and the lifting base is fixedly installed on the outer surface of the rear end of the positioning side plate. The lifting back plate is movably mounted above the lifting base; a first supporting plate and a second supporting plate are movably installed on the inner side of the coiled material box, the first supporting plate is located on one side of the second supporting plate, and the first supporting plate and the second supporting plate are driven through two sets of chains; the carrying frame comprises a moving frame and a lifting push plate, and the moving frame is movably mounted on one side of the lifting push plate; therefore, the installation operation of lithium battery diaphragm roll materials at different positions can be met, the operation difficulty is reduced, the installation of lithium battery diaphragm mother rolls of multiple groups of roll materials is completed at the same time, a synchronous feeding and discharging structure is arranged, and the use effect is improved.

Description

Technical Field

[0001] The present invention belongs to the field related to lithium battery diaphragm production technology, and more specifically relates to a diaphragm roll changing and transporting device used in a lithium battery diaphragm production line. Background Art

[0002] The membrane roll changing and handling equipment for the lithium battery membrane production line is a device used in the lithium battery membrane production process to install and disassemble the rolled lithium battery membrane. In the lithium battery membrane production, the weight of a single membrane winding mother roll is 270 to 350 kg, and most lithium battery membrane manufacturers currently rely on manual handling to change rolls.

[0003] The patent document with patent number CN116177283A discloses a diaphragm roll changing and handling equipment for a lithium battery diaphragm production line, the equipment includes a translation chassis, an active side rotating arm, a driven side rotating arm and a cantilever drive mechanism, the active side rotating arm and the driven side rotating arm are respectively arranged on the translation chassis, the active side planetary gear set in the active side rotating arm and the driven side planetary gear set in the driven side rotating arm are connected by at least one transmission synchronization rod, and are connected by two driven synchronization rods respectively fixed with a core bracket fixture, when the cantilever drive mechanism drives the active side rotating arm and the driven side rotating arm to rotate in the same direction through the transmission synchronization rod, the two driven synchronization rods will rotate synchronously in the opposite direction, so that the core bracket fixture on the driven synchronization rod always remains in a vertical upward state.

[0004] The above-mentioned equipment has certain shortcomings in the operation of transporting lithium battery diaphragms. The above-mentioned equipment adopts a rail structure for movement, which limits its flexibility during movement, and it does not have a multiple adjustment structure, and cannot be arbitrarily adjusted according to the height and position of the battery diaphragm mother roll, and cannot complete the replacement and storage operation of the mother roll, and the functionality is single; secondly, the above-mentioned equipment can only perform the replacement and installation operation of one group of battery diaphragm mother rolls at a time, and does not have an auxiliary loading and unloading structure, and cannot complete the replacement operation of multiple groups of battery diaphragm mother rolls at the same time, which reduces its work efficiency; at the same time, battery diaphragm mother rolls of different specifications have different lengths. During the installation operation of the mother roll, the above-mentioned handling equipment cannot be arbitrarily adjusted according to the length of the mother roll, which makes it easy for mother rolls of different lengths to be misplaced or tilted, reducing the scope of application of the handling equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a membrane roll changing and handling device for a lithium battery membrane production line, which can solve the existing problems.

[0006] The problem to be solved by the present invention is:

[0007] 1. The above equipment adopts a track structure for movement, which limits its flexibility during movement, and it does not have a multi-adjustment structure, and cannot be arbitrarily adjusted according to the height and position of the battery diaphragm mother roll, and cannot complete the replacement and storage operation of the mother roll, and has a single functionality;

[0008] 2. Secondly, the above equipment can only replace and install one set of battery diaphragm mother rolls at a time, and does not have an auxiliary loading and unloading structure, and cannot complete the replacement operation of multiple sets of battery diaphragm mother rolls at the same time, which reduces its work efficiency;

[0009] 3. At the same time, the lengths of battery diaphragm mother rolls of different specifications are different. The above-mentioned handling equipment cannot be adjusted arbitrarily according to the length of the mother roll during the installation operation, which makes it easy for mother rolls of different lengths to be misplaced or tilted, reducing the application scope of the handling equipment.

[0010] The purpose of the present invention can be achieved through the following technical solutions:

[0011] A membrane roll changing and handling device for a lithium battery membrane production line comprises a handling frame and a coil box, the handling frame being movably mounted above the coil box, a lifting back plate being movably mounted at the rear end of the handling frame, a lifting base being fixedly mounted on the rear end outer surface of the positioning side plate, and the lifting back plate being movably mounted above the lifting base; a first pallet and a second pallet are movably mounted on the inner side of the coil box, the first pallet is located on one side of the second pallet, and the first pallet and the second pallet are driven by two sets of chains; the handling frame comprises a moving frame and a lifting push plate, the moving frame being movably mounted on one side of the lifting push plate, a moving card wheel and a fixed card wheel being movably mounted on the inner side of the moving frame, and the moving card wheel being movably mounted on one side of the fixed card wheel.

[0012] As a further technical solution of the present invention, the outer surface of the side of the lifting back plate is provided with a vertical slide groove used in conjunction with the transport frame. The lifting back plate and the lifting base are driven by two telescopic top rods. The diaphragm roll can be taken and recovered through the transport frame. Secondly, the installation height of the diaphragm roll can be adjusted by adjusting the height of the transport frame. The height adjustment of the transport frame by the lifting back plate can realize two-stage height adjustment of the transport frame.

[0013] As a further technical solution of the present invention, the movable frame and the lifting push plate are driven by a transverse push rod, the lifting back plate and the lifting push plate are driven by a guide rod, a screw rod is movably installed in the middle inner side of the lifting back plate, the transverse push rod can adjust the position of the movable frame laterally, and the screw rod drives the lifting push plate to move up and down by a threaded structure, so that the lifting push plate can drive the movable frame to move up and down, and when the movable frame completes the material picking operation of the diaphragm roll, the installation position of the diaphragm roll can be adjusted in both directions.

[0014] As a further technical solution of the present invention, a diaphragm roll is arranged between the mobile clamping wheel and the fixed clamping wheel, the mobile frame and the mobile clamping wheel are movably connected by a transverse slider, and one end of the transverse slider is driven by an electric push rod. When the mobile frame is in use, the electric push rod is used to drive the transverse slider so that the transverse slider drives the mobile clamping wheel to translate, thereby adjusting the distance between the mobile clamping wheel and the fixed clamping wheel. When the diaphragm roll is taken up, the mobile clamping wheel and the fixed clamping wheel can be used to clamp and fix the two sides of the diaphragm roll, so that it is as shown in FIG. Figure 3 As shown, the fixing operation of the diaphragm roll is completed. During the diaphragm roll discharging operation, the distance between the moving clamping wheel and the fixed clamping wheel is increased by lateral movement of the moving clamping wheel, so that the diaphragm roll can be discharged downward from between the moving clamping wheel and the fixed clamping wheel.

[0015] As a further technical solution of the present invention, the first pallet and the chain, as well as the second pallet and the chain are connected by a connecting frame, and a second motor is provided at the bottom of the coil box for use with the chain, and the second motor and the chain are driven by gears. The coil box can respectively complete the loading and unloading operations when changing the diaphragm rolls by utilizing the settings of the first pallet and the second pallet. When in use, the second motor drives the gear to rotate, so that the gear drives the connecting frame, and the connecting frame is used to drive the first pallet and the second pallet to move respectively. Because the first pallet and the second pallet are both installed on the chain, and in the initial state the first pallet is located at the lower position, and the second pallet is located at the upper position, when the chain drives the first pallet to move up, the chain simultaneously drives the second pallet to move down, and the first pallet moves up the height of a diaphragm roll, so that the diaphragm roll passes through the moving frame, and the corresponding second pallet moves down the height of a diaphragm roll, which is convenient for the moving frame to store the removed diaphragm roll.

[0016] As a further technical solution of the present invention, one end of the first pallet and the second pallet is provided with a docking slider, and the docking slider is slidably connected to the coil box. Both ends of the docking slider are provided with rollers. When the first pallet and the second pallet move up and down, the docking slider cooperates with the rollers to install one end of the first pallet and the second pallet, so that one end of the first pallet and the second pallet slides up and down inside the coil box.

[0017] As a further technical solution of the present invention, a side rotary cover plate is movably installed at the front end of the coil box, a positioning side plate is movably installed on one side of the coil box, and a movable frame is provided at the bottom of the coil box. The used diaphragm roll in the coil box can be taken out by opening the side rotary cover plate, and the movable frame can adjust the overall position of the handling equipment by using a roller structure.

[0018] As a further technical solution of the present invention, two groups of positioning top blocks are provided in the middle part of the positioning side plate, and the two groups of positioning top blocks are arranged vertically side by side. The four corners of the positioning side plate and the coil box are driven by a transverse pull rod, and the transverse pull rod is an electric push rod. The positioning side plate is pulled by the transverse pull rod, so that the positioning side plate can adjust the use length of the positioning top block.

[0019] As a further technical solution of the present invention, the inner sides of the first pallet and the second pallet are provided with rectangular grooves used to cooperate with the positioning top block, and the overall docking slider is a T-shaped structure. The use length of the first pallet and the second pallet is adjusted by moving and adjusting the positioning top block at the rectangular groove, which facilitates the installation of diaphragm rolls of different lengths on the first pallet and the second pallet.

[0020] As a further technical solution of the present invention, a first motor is provided in the middle of the upper end of the lifting back plate, and two groups of storage grooves for use with the first pallet and the second pallet are provided on the inner side of the coil box.

[0021] Beneficial effects of the present invention:

[0022] 1. By setting a lifting back plate and a transport frame, when the membrane roll changing and transporting equipment for the lithium battery membrane production line is used, it can meet the installation operation of lithium battery membrane rolls at different positions, reduce its operation difficulty, and improve its work efficiency;

[0023] During operation, the installation and recovery operations of the diaphragm roll can be realized through the transport frame, and secondly, the installation height of the diaphragm roll can be adjusted by adjusting the height of the transport frame, and the height adjustment of the transport frame by cooperating with the lifting back plate can realize the two-stage height adjustment of the transport frame. During operation, the position of the moving frame can be adjusted laterally through the transverse push rod, and the screw rod uses a threaded structure to drive the lifting push plate to move up and down, so that the lifting push plate can drive the moving frame to move up and down. When the moving frame completes the material taking operation of the diaphragm roll, the installation position of the diaphragm roll can be adjusted in two directions. When the moving frame is in use, the transverse slider is driven by the electric push rod, so that the transverse slider drives the moving card wheel to move horizontally, thereby adjusting the distance between the moving card wheel and the fixed card wheel, and the transverse push rod and the screw rod are used to drive the moving frame to move in two directions, and the moving frame is moved to the upper end of the coil box, and a group of diaphragm rolls are pushed out upwards through the first support plate. When the diaphragm roll is taken, the two sides of the diaphragm roll can be clamped and fixed by the moving card wheel to make it present as follows Figure 3 As shown, the fixing operation of the diaphragm roll is completed, and the diaphragm roll is moved to the installation position by the moving frame. During the diaphragm roll discharging operation, the removed diaphragm roll falls onto the moving clamping wheel and the fixed clamping wheel. By the lateral movement of the moving clamping wheel, the distance between the moving clamping wheel and the fixed clamping wheel is increased, so that the diaphragm roll can be discharged downward from between the moving clamping wheel and the fixed clamping wheel, and thus fall into the internal storage of the coil box.

[0024] 2. By setting up a coil box, when the membrane roll changing and handling equipment for the lithium battery membrane production line is used, it can simultaneously complete the installation of multiple groups of lithium battery membrane mother rolls, and has a synchronous loading and unloading structure, thereby improving its use effect;

[0025] When in use, the coil box can respectively complete the loading and taking-out storage operations when the diaphragm roll is changed by the arrangement of the first pallet and the second pallet. When in use, the second motor drives the gear to rotate, so that the gear drives the connecting frame, and the connecting frame is used to drive the first pallet and the second pallet to move respectively. Because the first pallet and the second pallet are both installed on the chain, and in the initial state, the first pallet is located at the lower position and the second pallet is located at the upper position, when the chain drives the first pallet to move up, the chain synchronously drives the second pallet to move down, and the first pallet moves up the height of a diaphragm roll, and the diaphragm roll is moved to The diaphragm roll is ejected upward, allowing the diaphragm roll to pass through the moving frame, making it convenient for the moving frame to limit and fix the diaphragm roll, and the corresponding second support plate moves down by the height of the diaphragm roll. When the moving frame performs the blanking operation of the diaphragm roll after use, the impact force between the diaphragm roll and the second support plate can be reduced by controlling the height of the second support plate when the diaphragm roll falls, so that the diaphragm roll can fall smoothly onto the second support plate. The synchronous operation of the first support plate and the second support plate allows the storage operation of a group of diaphragm rolls to be completed after each installation operation of a group of diaphragm rolls is completed, making it convenient for the moving frame to store the removed diaphragm rolls.

[0026] 3. By setting the positioning side plates and the positioning top block, when the diaphragm roll changing and handling equipment for the lithium battery diaphragm production line is used, the use of the first pallet and the second pallet is optimized, so that the first pallet and the second pallet can meet the installation operation of diaphragm rolls of different lengths, thereby improving its application range;

[0027] During operation, the lateral pull rod is used to pull the positioning side plate, so that the positioning side plate adjusts the use length of the positioning top block. The installation length of the first pallet and the upper part of the second pallet is adjusted by moving the positioning top block in the rectangular groove. The positioning top block has a limiting and fixing effect on one end of the diaphragm roll, and will not affect the lifting and lowering operations of the first pallet and the second pallet, thereby facilitating the installation of diaphragm rolls of different lengths on the first pallet and the second pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of a membrane roll changing and transporting device for a lithium battery membrane production line of the present invention;

[0030] Figure 2 This is an overall structural diagram of a lifting back plate in a membrane roll changing and transporting device for a lithium battery membrane production line of the present invention;

[0031] Figure 3 It is an overall structural diagram of a transverse slider in a membrane roll changing and transporting device used in a lithium battery membrane production line of the present invention;

[0032] Figure 4 It is a planar structural diagram of a coil box in a diaphragm roll changing and handling device used in a lithium battery diaphragm production line of the present invention;

[0033] Figure 5 It is a planar structural diagram of a first support plate in a membrane roll changing and transporting device used in a lithium battery membrane production line of the present invention;

[0034] Figure 6 The present invention is an overall structural diagram of a positioning top block in a diaphragm roll changing and handling device used in a lithium battery diaphragm production line.

[0035] In the figure: 1. moving frame; 2. positioning side plate; 3. lifting base; 4. telescopic top rod; 5. vertical slide; 6. lifting back plate; 7. transport frame; 8. coil box; 9. side rotary cover plate; 10. moving frame; 11. lifting push plate; 12. horizontal push rod; 13. guide rod; 14. screw rod; 15. first motor; 16. moving card wheel; 17. fixed card wheel; 18. diaphragm roll; 19. horizontal slider; 20. first support plate; 21. second support plate; 22. second motor; 23. chain; 24. gear; 25. rectangular groove; 26. connecting frame; 27. docking slider; 28. roller; 29. ​​positioning top block; 30. horizontal pull rod. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0037] like Figure 1 As shown, a membrane roll changing and handling equipment for a lithium battery membrane production line includes a handling frame 7 and a coil box 8. The handling frame 7 is movably installed above the coil box 8. A lifting back plate 6 is movably installed at the rear end of the handling frame 7. A lifting base 3 is fixedly installed on the rear end outer surface of the positioning side plate 2. A positioning side plate 2 is movably installed on one side of the coil box 8, and the lifting back plate 6 is movably installed above the lifting base 3; a first pallet 20 and a second pallet 21 are movably installed on the inner side of the coil box 8, the first pallet 20 is located on one side of the second pallet 21, and the first pallet 20 and the second pallet 21 are driven by two sets of chains 23; the handling frame 7 includes a moving frame 10 and a lifting push plate 11, the moving frame 10 is movably installed on one side of the lifting push plate 11, a moving card wheel 16 and a fixed card wheel 17 are movably installed on the inner side of the moving frame 10, and the moving card wheel 16 is movably installed on one side of the fixed card wheel 17.

[0038] To solve the problem of handling lithium battery separators, such as Figure 2 As shown, the outer surface of the side of the lifting back plate 6 is provided with a vertical slide groove 5 used in conjunction with the transport frame 7. The lifting back plate 6 and the lifting base 3 are driven by two telescopic top rods 4. The diaphragm roll 18 can be taken and recovered through the transport frame 7. Secondly, the installation height of the diaphragm roll 18 can be adjusted by adjusting the height of the transport frame 7. The height adjustment of the transport frame 7 by the lifting back plate 6 can realize two-stage height adjustment of the transport frame 7.

[0039] like Figure 2 As shown, the moving frame 10 and the lifting push plate 11 are driven by a transverse push rod 12, and the lifting back plate 6 and the lifting push plate 11 are driven by a guide rod 13. A screw rod 14 is movably installed in the middle of the inner side of the lifting back plate 6. The transverse push rod 12 can adjust the position of the moving frame 10 laterally, and the screw rod 14 uses a threaded structure to drive the lifting push plate 11 to move up and down, so that the lifting push plate 11 can drive the moving frame 10 to move up and down. When the moving frame 10 completes the material picking operation of the diaphragm roll 18, the installation position of the diaphragm roll 18 is adjusted in both directions.

[0040] like Figure 3 As shown, a diaphragm roll 18 is arranged between the mobile card wheel 16 and the fixed card wheel 17, and the mobile frame 10 and the mobile card wheel 16 are movably connected by a transverse slider 19, and one end of the transverse slider 19 is driven by an electric push rod. When the mobile frame 10 is used, the electric push rod is used to drive the transverse slider 19, so that the transverse slider 19 drives the mobile card wheel 16 to translate, thereby adjusting the distance between the mobile card wheel 16 and the fixed card wheel 17. When the diaphragm roll 18 is taken out, the mobile card wheel 16 and the fixed card wheel 17 can be used to clamp and fix the two sides of the diaphragm roll 18, so that it is as shown in Figure 3 As shown, the fixing operation of the diaphragm roll 18 is completed. When the diaphragm roll 18 is discharged, the distance between the moving card wheel 16 and the fixed card wheel 17 is increased by the lateral movement of the moving card wheel 16, so that the diaphragm roll 18 can be discharged downward from between the moving card wheel 16 and the fixed card wheel 17.

[0041] To solve the problem of simultaneous access to lithium battery separators, such as Figure 4As shown, the first support plate 20 and the chain 23 as well as the second support plate 21 and the chain 23 are connected by a connecting frame 26. The bottom of the coil box 8 is provided with a second motor 22 used in conjunction with the chain 23. The second motor 22 and the chain 23 are driven by a gear 24. The coil box 8 can respectively complete the loading and unloading operations when the diaphragm roll 18 is changed by the arrangement of the first support plate 20 and the second support plate 21. When in use, the gear 24 is driven to rotate by the second motor 22, so that the gear 24 drives the connecting frame 26, and the connecting frame 26 is used to drive the first support plate 20 and the chain 23 to rotate. The second pallet 21 moves because the first pallet 20 and the second pallet 21 are both mounted on the chain 23, and in the initial state the first pallet 20 is located at the lower position, while the second pallet 21 is located at the upper position. When the chain 23 drives the first pallet 20 to move upward, the chain 23 simultaneously drives the second pallet 21 to move downward. The first pallet 20 moves upward by the height of a diaphragm roll 18, so that the diaphragm roll 18 passes through the moving frame 10, and the corresponding second pallet 21 moves downward by the height of a diaphragm roll 18, so that the moving frame 10 can store the removed diaphragm roll 18 conveniently.

[0042] like Figure 5 As shown, one end of the first pallet 20 and the second pallet 21 is provided with a docking slider 27, and the docking slider 27 and the coil box 8 are slidably connected. Both ends of the docking slider 27 are provided with rollers 28. When the first pallet 20 and the second pallet 21 move up and down, the docking slider 27 cooperates with the rollers 28 to install one end of the first pallet 20 and the second pallet 21, so that one end of the first pallet 20 and the second pallet 21 slides up and down inside the coil box 8.

[0043] like Figure 1 As shown, a side rotary cover plate 9 is movably installed at the front end of the coil box 8, a positioning side plate 2 is movably installed on one side of the coil box 8, and a movable frame 1 is provided at the bottom of the coil box 8. The used diaphragm roll 18 in the coil box 8 can be taken out by opening the side rotary cover plate 9, and the movable frame 1 can adjust the overall position of the handling equipment by using a roller structure.

[0044] To solve the installation problem of lithium battery separators of different sizes, such as Figure 6 As shown, two groups of positioning top blocks 29 are provided in the middle of the positioning side plate 2. The two groups of positioning top blocks 29 are arranged vertically side by side. The four corners of the positioning side plate 2 and the coil box 8 are driven by a transverse pull rod 30. The transverse pull rod 30 is an electric push rod. The positioning side plate 2 is pulled by the transverse pull rod 30, so that the positioning side plate 2 can adjust the use length of the positioning top blocks 29.

[0045] The inner sides of the first pallet 20 and the second pallet 21 are provided with rectangular grooves 25 used to cooperate with the positioning top block 29. The docking slider 27 is an overall T-shaped structure. The use length of the first pallet 20 and the second pallet 21 is adjusted by moving and adjusting the positioning top block 29 at the rectangular groove 25, so as to facilitate the installation of diaphragm rolls 18 of different lengths on the first pallet 20 and the second pallet 21.

[0046] A first motor 15 is disposed at the middle of the upper end of the lifting back plate 6 , and two groups of storage slots for cooperating with the first support plate 20 and the second support plate 21 are disposed on the inner side of the coil box 8 .

[0047] When in use, the traditional equipment adopts a track structure for movement, which limits its flexibility during movement. In addition, it does not have a multi-adjustment structure and cannot be adjusted arbitrarily according to the height and position of the battery diaphragm mother roll, and cannot complete the replacement and storage operation of the mother roll, and has a single functionality.

[0048] To this end, by setting the lifting back plate 6 and the transport frame 7, when the membrane roll changing and transporting equipment for the lithium battery membrane production line is used, it can meet the installation operation of the lithium battery membrane roll 18 at different positions, reduce its operation difficulty, and improve its work efficiency;

[0049] During operation, the installation and recovery operations of the diaphragm roll 18 can be realized through the transport frame 7. Secondly, the installation height of the diaphragm roll 18 can be adjusted by adjusting the height of the transport frame 7. The height adjustment of the transport frame 7 by the lifting back plate 6 is coordinated to realize the two-stage height adjustment of the transport frame 7. During operation, the position of the moving frame 10 can be adjusted laterally through the transverse push rod 12, and the screw rod 14 drives the lifting push plate 11 to move up and down by using the threaded structure, so that the lifting push plate 11 can drive the moving frame 10 to move up and down. When the moving frame 10 completes the material collection operation of the diaphragm roll 18, the moving frame 10 is moved to the bottom of the diaphragm roll 18. The installation position of the diaphragm roll 18 is adjusted in both directions. When the moving frame 10 is used, the electric push rod is used to drive the transverse slider 19, so that the transverse slider 19 drives the moving card wheel 16 to move horizontally, thereby adjusting the distance between the moving card wheel 16 and the fixed card wheel 17. The transverse push rod 12 and the screw rod 14 are used to drive the moving frame 10 to move in both directions, and the moving frame 10 is moved to the upper end of the coil box 8. A group of diaphragm rolls 18 are pushed upward through the first support plate 20. When the diaphragm roll 18 is taken out, the two sides of the diaphragm roll 18 can be clamped and fixed by the moving card wheel 16 and the fixed card wheel 17, so that it is as shown in the figure. Figure 3 As shown, the fixing operation of the diaphragm roll 18 is completed, and the diaphragm roll 18 is moved to the installation position by the moving frame 10. When the diaphragm roll 18 is discharged, the removed diaphragm roll 18 falls onto the moving card wheel 16 and the fixed card wheel 17. By the lateral movement of the moving card wheel 16, the distance between the moving card wheel 16 and the fixed card wheel 17 is increased, so that the diaphragm roll 18 can be discharged downward from between the moving card wheel 16 and the fixed card wheel 17, and then fall into the coil box 8 for storage;

[0050] Secondly, the traditional equipment can only replace and install one set of battery diaphragm mother rolls at a time, and does not have an auxiliary loading and unloading structure, and cannot complete the replacement operation of multiple sets of battery diaphragm mother rolls at the same time, which reduces its work efficiency;

[0051] To this end, by setting the coil box 8, when the membrane roll changing and handling equipment for the lithium battery membrane production line is used, it can simultaneously complete the installation of multiple groups of lithium battery membrane mother rolls, and has a synchronous loading and unloading structure, thereby improving its use effect;

[0052] When in use, the coil box 8 can respectively complete the loading and taking-up storage operations when the diaphragm roll 18 is changed by the arrangement of the first support plate 20 and the second support plate 21. When in use, the second motor 22 drives the gear 24 to rotate, so that the gear 24 drives the connecting frame 26, and the connecting frame 26 is used to drive the first support plate 20 and the second support plate 21 to move respectively. Because the first support plate 20 and the second support plate 21 are both installed on the chain 23, and in the initial state, the first support plate 20 is located at the lower position, and the second support plate 21 is located at the upper position, when the chain 23 drives the first support plate 20 to move up, the chain 23 synchronously drives the second support plate 21 to move down, and the first support plate 20 moves up to the height of a diaphragm roll 18, and the diaphragm roll 18 is moved up. The film roll 18 is pushed upward, so that the diaphragm roll 18 passes through the moving frame 10, which is convenient for the moving frame 10 to limit and fix the diaphragm roll 18, and the corresponding second support plate 21 moves down by the height of the diaphragm roll 18. When the moving frame 10 performs the blanking operation of the diaphragm roll 18 after use, the impact force between the diaphragm roll 18 and the second support plate 21 when falling can be reduced by controlling the height of the second support, so that the diaphragm roll 18 can fall smoothly onto the second support plate 21. The synchronous operation of the first support plate 20 and the second support plate 21 allows it to complete the storage operation of a group of diaphragm rolls 18 after each installation operation of a group of diaphragm rolls 18 is completed, which is convenient for the moving frame 10 to store the removed diaphragm rolls 18;

[0053] At the same time, the lengths of battery separator mother rolls of different specifications are different. When the above-mentioned handling equipment is installed, it cannot be adjusted arbitrarily according to the length of the mother roll, which makes it easy for mother rolls of different lengths to be misplaced or tilted, reducing the application range of the handling equipment;

[0054] To this end, by providing the positioning side plate 2 and the positioning top block 29, when the diaphragm roll changing and handling device for the lithium battery diaphragm production line is used, the use of the first support plate 20 and the second support plate 21 is optimized, so that the first support plate 20 and the second support plate 21 can meet the installation operation of diaphragm rolls 18 of different lengths, thereby improving its scope of application;

[0055] During operation, the lateral pull rod 30 is used to pull the positioning side plate 2, so that the positioning side plate 2 adjusts the use length of the positioning top block 29. The installation length of the upper part of the first pallet 20 and the second pallet 21 is adjusted by moving the positioning top block 29 in the rectangular groove 25. The positioning top block 29 has a limiting and fixing effect on one end of the diaphragm roll 18, and will not affect the lifting and lowering operations of the first pallet 20 and the second pallet 21, so that diaphragm rolls 18 of different lengths can be installed on the first pallet 20 and the second pallet 21.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A membrane roll changing and handling device for a lithium battery membrane production line, characterized in that: The invention comprises a transport frame (7) and a coil box (8), wherein the transport frame (7) is movably mounted above the coil box (8), a lifting back plate (6) is movably mounted at the rear end of the transport frame (7), a positioning side plate (2) is movably mounted on one side of the coil box (8), a lifting base (3) is fixedly mounted on the rear end outer surface of the positioning side plate (2), and the lifting back plate (6) is movably mounted above the lifting base (3); a first support plate (20) and a second support plate (21) are movably mounted on the inner side of the coil box (8) The first support plate (20) is located on one side of the second support plate (21), and the first support plate (20) and the second support plate (21) are driven by two sets of chains (23); the transport frame (7) comprises a moving frame (10) and a lifting push plate (11), the moving frame (10) is movably mounted on one side of the lifting push plate (11), a moving card wheel (16) and a fixed card wheel (17) are movably mounted on the inner side of the moving frame (10), and the moving card wheel (16) is movably mounted on one side of the fixed card wheel (17).

2. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: The outer side surface of the lifting back plate (6) is provided with a vertical slide groove (5) used in conjunction with the transport frame (7), and the lifting back plate (6) and the lifting base (3) are driven by two telescopic push rods (4).

3. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: The movable frame (10) and the lifting push plate (11) are driven by a transverse push rod (12), the lifting back plate (6) and the lifting push plate (11) are driven by a guide rod (13), and a screw rod (14) is movably installed in the middle of the inner side of the lifting back plate (6).

4. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: A diaphragm roll (18) is arranged between the movable clamping wheel (16) and the fixed clamping wheel (17), and the movable frame (10) and the movable clamping wheel (16) are movably connected via a transverse slider (19), and one end of the transverse slider (19) is driven by an electric push rod.

5. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: The first support plate (20) and the chain (23) as well as the second support plate (21) and the chain (23) are connected via a connecting frame (26); a second motor (22) for use with the chain (23) is provided at the bottom of the coil box (8); the second motor (22) and the chain (23) are driven via a gear (24).

6. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: One end of each of the first support plate (20) and the second support plate (21) is provided with a docking slider (27), the docking slider (27) and the coil box (8) are slidably connected, and rollers (28) are provided at both ends of the docking slider (27).

7. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: A side rotary cover plate (9) is movably mounted on the front end of the coil box (8), a positioning side plate (2) is movably mounted on one side of the coil box (8), and a movable frame (1) is disposed at the bottom of the coil box (8).

8. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 7, characterized in that: Two groups of positioning top blocks (29) are arranged in the middle of the positioning side plate (2). The two groups of positioning top blocks (29) are arranged vertically side by side. The four corners of the positioning side plate (2) and the coil box (8) are driven by a transverse pull rod (30).

9. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 8, characterized in that: The inner sides of the first support plate (20) and the second support plate (21) are both provided with rectangular grooves (25) used in conjunction with the positioning top block (29), and the docking slide block (27) is an overall T-shaped structure.

10. The membrane roll changing and handling equipment for a lithium battery membrane production line according to claim 1, characterized in that: A first motor (15) is provided at the middle of the upper end of the lifting back plate (6), and two groups of storage grooves for use with the first support plate (20) and the second support plate (21) are provided on the inner side of the coil box (8).

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