A bag making machine pole piece feeding mechanism

Abstract

The application discloses a bag making machine pole piece feeding mechanism and relates to the field of bag making machine equipment. The bag making machine pole piece feeding mechanism comprises a bag making machine rack, the front surface of the bag making machine rack is provided with a movable bearing platform, a driving assembly for adjusting the movable bearing platform is arranged on the bag making machine rack, and the movable bearing platform comprises a pole piece taking component, a pole piece feeding component and a diaphragm feeding component. The bag making machine pole piece feeding mechanism improves the feeding mechanism, integrates the feeding of battery pole pieces and the feeding of diaphragms on the movable bearing platform, reduces transmission parts, can synchronously drive the feeding of pole pieces and the transverse movement of parts in heat sealing and cutting through a group of driving assemblies, is compact in structure, easy to overhaul and maintain, and adopts a multi-station transfer mode of suction nozzles in the pole piece transfer process, thereby protecting the pole pieces and ensuring the stability of the feeding mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bag making machine equipment, in particular to a kind of bag making machine pole piece feeding mechanism. BACKGROUND

[0002] In the process of bag making machine in the lithium battery pole piece bag making, set down diaphragm on heat sealing station, the lithium battery pole piece to be sealed bag is placed on heat sealing station, the upper diaphragm is covered on lithium battery pole piece, then heat sealing and cutting are carried out, and lithium battery pole piece bag making is formed.

[0003] In the above-mentioned bag making process, the traditional bag making machine equipment needs to set up a special feeding mechanism, so that the lithium battery pole piece can be placed on the heat sealing station conveniently, the feeding of lithium battery pole piece and the feeding of diaphragm are independent in the traditional feeding mechanism, so that the transmission parts increase, the structure is complex, not compact enough, since the parts are designed more, subsequent maintenance is not convenient, and in the process of feeding and transferring battery pole piece, the pole piece is transferred by clamping mode, on the one hand, the clamping mode is easy to exert lateral force on the pole piece, so that the pole piece is not accurate in position, on the other hand, since the pole piece itself is fragile, it is easy to exert excessive force on the pole piece, resulting in damage to the pole piece, in view of the deficiencies of the prior art, the present application provides a kind of bag making machine pole piece feeding mechanism to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a kind of bag making machine pole piece feeding mechanism, which improves the feeding mechanism, integrates the feeding of battery pole piece and diaphragm on the movable carrying platform, so as to reduce the transmission parts, which can drive the pole piece feeding and the horizontal movement of parts in heat sealing and cutting by a group of driving assemblies, so the structure is compact, easy to maintain, and in the process of pole piece transfer, the multi-station transfer mode of suction nozzle is adopted, on the one hand, it avoids exerting lateral force on the pole piece, so that the pole piece feeding position is accurate, on the other hand, it will not exert excessive force on the pole piece to cause damage to the pole piece, which ensures the stability of the feeding mechanism and meets the use requirement.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a kind of bag making machine pole piece feeding mechanism, including bag making machine rack, the front of the bag making machine rack is equipped with movable carrying platform, the bag making machine rack is equipped with driving assembly for adjusting movable carrying platform;

[0006] The movable carrying platform includes:

[0007] Pole piece material taking assembly for realizing pole piece material taking, the pole piece material taking assembly includes first air cylinder and material taking suction nozzle arranged at the output end of first air cylinder;

[0008] The polar piece loading assembly is used for loading the polar piece with the diaphragm, and the polar piece loading assembly comprises a second air cylinder and a loading suction nozzle arranged at the output end of the second air cylinder.

[0009] The diaphragm loading assembly is used for loading the diaphragm and enabling the polar piece and the diaphragm to be in a packaging bag-making position for heat sealing and cutting.

[0010] Preferably, the driving assembly comprises a nut seat fixedly connected to the movable bearing platform and a motor fixedly connected to the bag-making machine rack, and the output end of the motor is provided with a lead screw threadedly connected with the nut seat.

[0011] Preferably, the bag-making machine rack is fixedly connected with a support shaft seat for providing reinforced support to the lead screw, and the bag-making machine rack is provided with a limiting groove corresponding to the nut seat.

[0012] Preferably, the movable bearing platform is fixedly connected with a limiting sleeve seat, and the bag-making machine rack is fixedly connected with a positioning rail, and the limiting sleeve seat is slidingly connected to the positioning rail.

[0013] Preferably, the polar piece loading assembly comprises a first support frame fixedly connected to the movable bearing platform, the first support frame is used for supporting and limiting the first air cylinder, the output end of the first air cylinder is provided with a bearing rail, the bearing rail movably clamps an adjusting table, the adjusting table is fixedly connected with a mounting plate, the mounting plate is used for supporting the loading suction nozzle, and the loading suction nozzle is provided with a first air connection.

[0014] Preferably, the polar piece loading assembly comprises a second support frame fixedly connected to the movable bearing platform, the second support frame is used for supporting and limiting the second air cylinder, the output end of the second air cylinder is provided with a support table, the loading suction nozzle is fixedly connected to the support table, and the loading suction nozzle is provided with a second air connection.

[0015] Preferably, the diaphragm loading assembly comprises an assembly main support frame fixedly connected to the movable bearing platform.

[0016] The assembly main support frame is provided with a third air cylinder, the output end of the third air cylinder is provided with a fixed shaft seat, and the fixed shaft seat is rotatably connected with a compression roller.

[0017] Preferably, the assembly main support frame is fixedly connected with a fourth air cylinder, the output end of the fourth air cylinder is provided with a sliding table, the sliding table is fixedly connected with a heating seat, the bottom of the heating seat movably clamps a butt joint block, and the butt joint block is provided with a heat sealing head for heat sealing the diaphragm.

[0018] Preferably, the assembly main support frame is fixedly connected with a fifth air cylinder, the output end of the fifth air cylinder is provided with a movable table, and the movable table is fixedly connected with a cutting knife for cutting the diaphragm.

[0019] Preferably, a plurality of conveying rollers for conveying the diaphragm are arranged on the movable carrying platform.

[0020] The application discloses a bag making machine pole piece feeding mechanism, which has the following beneficial effects:

[0021] 1. The bag making machine pole piece feeding mechanism improves the feeding mechanism, integrates the feeding of the battery pole piece and the diaphragm on the movable carrying platform, thereby reducing transmission members, and synchronously drives the pole piece feeding and the transverse movement of the parts in the heat sealing and cutting through a group of driving assemblies, so that the structure is compact, easy to maintain and repair, and in the pole piece transfer process, the multi-station transfer mode of the suction nozzle is adopted, on the one hand, the lateral force applied to the pole piece is avoided, so that the pole piece feeding position is accurate, and on the other hand, the pole piece is not subjected to excessive force to cause damage to the pole piece, so that the feeding mechanism is stable and meets the use requirement.

[0022] 2. The bag making machine pole piece feeding mechanism drives the feeding suction nozzle through the first air cylinder on the pole piece feeding assembly, and the overall structure is simple, and meanwhile, the position adjustment of the feeding suction nozzle is facilitated through the design of the carrying rail and the adjusting table, so that the feeding suction nozzle is conveniently aligned with the feeding position of the battery pole piece, the carrying rail and the adjusting table are positioned through bolts, and meanwhile, the feeding suction nozzle is fixed through the mounting plate and the adjusting table, and the mounting plate and the adjusting table are fixed through bolts, so that the feeding suction nozzle is convenient to disassemble and maintain.

[0023] 3. The bag making machine pole piece feeding mechanism has the simple overall structure of the diaphragm feeding assembly, the whole diaphragm feeding assembly is installed through the assembly main bracket, and the fixed shaft seat and the compression roller are conveniently driven to move through the third air cylinder, so that the diaphragm is conveniently positioned and compressed during the subsequent heat sealing and cutting, the position deviation of the diaphragm is avoided, and the bag making and packaging effect of the battery pole piece is good. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 It is a first view of the overall structure of the application.

[0026] Figure 2 It is a second view of the overall structure of the application.

[0027] Figure 3 It is a front view of the application.

[0028] Figure 4 It is a structural schematic view of the movable bearing platform of the application.

[0029] Figure 5 It is a structural schematic view of the pole piece taking component of the application.

[0030] Figure 6 It is a structural schematic view of the pole piece feeding component of the application.

[0031] Figure 7 It is a structural schematic view of the diaphragm feeding component of the application.

[0032] In the figure: 1, bag making machine frame; 2, movable bearing platform; 201, nut seat; 202, motor; 203, screw rod; 204, support shaft seat; 205, limiting groove; 206, limiting sleeve seat; 207, positioning rail; 3, pole piece taking component; 301, first support frame; 302, first air cylinder; 303, bearing rail; 304, adjusting table; 305, mounting plate; 306, taking nozzle; 307, first air path joint; 4, pole piece feeding component; 401, second support frame; 402, second air cylinder; 403, support table; 404, feeding nozzle; 405, second air path joint; 5, diaphragm feeding component; 501, assembly total support; 5011, third air cylinder; 5012, fixed shaft seat; 5013, compression roller; 502, fourth air cylinder; 5021, sliding table; 5022, heating seat; 5023, butt joint block; 5024, heat sealing head; 503, fifth air cylinder; 5031, movable table; 5032, cutter; 6, conveying roller. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0034] The application provides a pole piece feeding mechanism of a bag making machine. The application solves the problem that the feeding of the lithium battery pole piece and the feeding of the diaphragm are independent in the traditional feeding mechanism, which leads to an increase in transmission parts, a complex structure, and a lack of compactness. Since there are many parts, subsequent maintenance is inconvenient. In the process of feeding and transferring the battery pole piece, the pole piece is usually transferred by clamping. On the one hand, the clamping method is easy to exert a lateral force on the pole piece, which causes the pole piece to be inaccurate in position. On the other hand, since the pole piece is relatively fragile, the clamping method is easy to exert an excessive force on the pole piece, which causes the pole piece to be damaged.

[0035] For better understanding of the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments of the specification.

[0036] The embodiment of the application discloses a bag making machine pole piece feeding mechanism, according to the attached Figures 1-7 As shown, comprising a bag making machine rack 1, the front of the bag making machine rack 1 is provided with a movable bearing platform 2, the bag making machine rack 1 is provided with a driving assembly for adjusting the movable bearing platform 2;

[0037] The movable bearing platform 2 comprises:

[0038] The pole piece taking component 3 is used for taking the pole piece, and the pole piece taking component 3 comprises a first cylinder 302 and a taking nozzle 306 arranged at the output end of the first cylinder 302;

[0039] The pole piece feeding assembly 4 is used for feeding the taken pole piece to the diaphragm, and the pole piece feeding assembly 4 comprises a second cylinder 402 and a feeding nozzle 404 arranged at the output end of the second cylinder 402;

[0040] The diaphragm feeding assembly 5 is used for feeding the diaphragm and making the pole piece and the diaphragm in a packaging bag making position heat sealing and cutting.

[0041] Specifically, the driving assembly comprises a nut seat 201 fixedly connected to the movable bearing platform 2 and a motor 202 fixedly connected to the bag making machine rack 1, the output end of the motor 202 is provided with a lead screw 203 threadedly connected with the nut seat 201, the overall structure of the driving assembly is simple, the driving assembly is used for conveniently driving the movable bearing platform 2, the movable bearing platform 2 is driven by the motor 202, the motor 202 drives the lead screw 203 to rotate, the lead screw 203 drives the nut seat 201 to move, and the nut seat 201 drives the movable bearing platform 2 to move transversely along the bag making machine rack 1.

[0042] Further, the bag making machine rack 1 is fixedly connected with a support shaft seat 204 for providing reinforcing support for the lead screw 203, and the bag making machine rack 1 is provided with a limiting groove 205 corresponding to the nut seat 201, the support shaft seat 204 provides reinforcing support for the lead screw 203, ensures the stress stability of the lead screw 203, the limiting groove 205 provides support limiting for the nut seat 201, ensures the stress stability of the nut seat 201, and further makes the driving of the movable bearing platform 2 stable.

[0043] Further, the movable bearing platform 2 is fixedly connected with a limiting sleeve seat 206, and the bag making machine frame 1 is fixedly connected with a positioning rail 207. The limiting sleeve seat 206 is slidingly connected to the positioning rail 207. When the movable bearing platform 2 is driven to move, the movable bearing platform 2 drives the limiting sleeve seat 206 to slide along the positioning rail 207. Through cooperation of the limiting sleeve seat 206 and the positioning rail 207, the stress of the movable bearing platform 2 is stable.

[0044] The pole piece material taking assembly 3 comprises a first support frame 301 fixedly connected to the movable bearing platform 2, the first support frame 301 being used for supporting and limiting a first air cylinder 302, the first air cylinder 302 being provided with a bearing rail 303 at an output end, the bearing rail 303 movably clamping a adjusting table 304, the adjusting table 304 being fixedly connected with a mounting plate 305, the mounting plate 305 being used for supporting a material taking nozzle 306, the material taking nozzle 306 being provided with a first gas joint 307, the material taking nozzle 306 being driven by the first air cylinder 302 on the pole piece material taking assembly 3. The whole structure is simple. Meanwhile, the position of the material taking nozzle 306 is adjusted by using the bearing rail 303 and the adjusting table 304, so that the material taking nozzle 306 is conveniently aligned with the material taking position of the battery pole piece. The bearing rail 303 and the adjusting table 304 are positioned by bolts. Meanwhile, the material taking nozzle 306 is fixed with the adjusting table 304 through the mounting plate 305. The mounting plate 305 is fixed with the adjusting table 304 by bolts. Therefore, the material taking nozzle 306 is convenient to disassemble and maintain.

[0045] The pole piece material taking assembly 3 comprises a first support frame 301 fixedly connected to the movable bearing platform 2, the first support frame 301 being used for supporting and limiting a first air cylinder 302, the first air cylinder 302 being provided with a bearing rail 303 at an output end, the bearing rail 303 movably clamping a adjusting table 304, the adjusting table 304 being fixedly connected with a mounting plate 305, the mounting plate 305 being used for supporting a material taking nozzle 306, the material taking nozzle 306 being provided with a first gas joint 307, the material taking nozzle 306 being driven by the first air cylinder 302 on the pole piece material taking assembly 3. The whole structure is simple. Meanwhile, the position of the material taking nozzle 306 is adjusted by using the bearing rail 303 and the adjusting table 304, so that the material taking nozzle 306 is conveniently aligned with the material taking position of the battery pole piece. The bearing rail 303 and the adjusting table 304 are positioned by bolts. Meanwhile, the material taking nozzle 306 is fixed with the adjusting table 304 through the mounting plate 305. The mounting plate 305 is fixed with the adjusting table 304 by bolts. Therefore, the material taking nozzle 306 is convenient to disassemble and maintain.

[0046] The diaphragm material taking assembly 5 comprises an assembly main support 501 fixedly connected to the movable bearing platform 2.

[0047] The assembly main support 501 is provided with a third air cylinder 5011, the third air cylinder 5011 being provided with a fixed shaft seat 5012 at an output end, and the fixed shaft seat 5012 is rotatably connected with a pressing roller 5013.

[0048] Further, the fourth cylinder 502 is fixedly connected on the assembly support 501, the output end of the fourth cylinder 502 is provided with a sliding table 5021, the sliding table 5021 is fixedly connected with a heating seat 5022, the bottom of the heating seat 5022 is movably clamped with a butt block 5023, the butt block 5023 is provided with a heat sealing head 5024 for heat sealing the diaphragm, the overall structure of the diaphragm feeding assembly 5 is simple, the diaphragm feeding assembly 5 is installed through the assembly support 501, and the third cylinder 5011 is used to conveniently drive the fixed shaft seat 5012 and the compression roller 5013 to move, so that the diaphragm is conveniently positioned and compressed during subsequent heat sealing and cutting, the position deviation of the diaphragm is avoided, and the bag making and packaging effect of the battery pole piece is good.

[0049] Further, the fifth cylinder 503 is fixedly connected on the assembly support 501, the output end of the fifth cylinder 503 is provided with a movable table 5031, the movable table 5031 is fixedly connected with a cutter 5032 for cutting the diaphragm, and the movable table 5031 and the cutter 5032 are fixedly connected through bolts.

[0050] Specifically, the movable bearing platform 2 is provided with a plurality of conveying rollers 6 for conveying the diaphragm.

[0051] The pole piece feeding mechanism of the bag making machine, when in use, the movable bearing platform 2 is controlled to move through the driving assembly, so that the pole piece feeding assembly 3, the pole piece feeding assembly 4 and the diaphragm feeding assembly 5 are conveniently driven to move through the movable bearing platform 2, to realize the feeding and feeding of the pole piece and the diaphragm;

[0052] When the movable bearing platform 2 is controlled to move by the driving assembly, the motor 202 is driven to drive the screw rod 203 to rotate, the screw rod 203 drives the nut seat 201 to slide along the inside of the limiting groove 205, the nut seat 201 drives the movable bearing platform 2 to move, and then the movable bearing platform 2 drives the pole piece feeding assembly 3, the pole piece feeding assembly 4 and the diaphragm feeding assembly 5 to move;

[0053] When the pole piece is fed, the bearing rail 303, the adjusting table 304, the mounting plate 305 and the feeding suction nozzle 306 are driven to move by the first cylinder 302, so that the feeding suction nozzle 306 contacts the pole piece, and the feeding and discharging of the pole piece are realized by the feeding suction nozzle 306;

[0054] When the pole piece is fed, the support table 403 is driven to move by the second cylinder 402, the support table 403 drives the feeding suction nozzle 404 to contact the pole piece, the feeding suction nozzle 404 is used to realize the feeding of the pole piece, so that the pole piece is located on the diaphragm, and the diaphragm is heat sealed and cut by the diaphragm feeding assembly 5 in the subsequent process, to form a bag;

[0055] When the diaphragm feeding assembly 5 works, first, the diaphragm is pressed by the compression roller 5013, then hot-pressed by the heat sealing head 5024, and finally cut by the cutter 5032;

[0056] The compression roller 5013 is driven by the third air cylinder 5011, which drives the fixed shaft seat 5012 and the compression roller 5013 to move as a whole, so that the compression roller 5013 can conveniently press the diaphragm, and the compression roller 5013 is guided by the conveying roller 6 for transmission;

[0057] The heat sealing head 5024 is driven by the fourth air cylinder 502, which drives the sliding table 5021, the heating seat 5022, the butt block 5023 and the heat sealing head 5024 to move as a whole, so that the heat sealing operation of the heat sealing head 5024 is convenient, the heating seat 5022 is connected by an electric cable to be electrified and heated, thereby realizing heating of the heat sealing head 5024, so as to realize heating and extrusion of the diaphragm by the heat sealing head 5024 to form a bag;

[0058] The cutter 5032 is driven by the fifth air cylinder 503, which drives the movable table 5031 and the cutter 5032 to move, so as to realize cutting of the diaphragm of the heat sealing sheet by the movement of the cutter 5032 to form a bag package.

[0059] It should be noted that, in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0060] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A bag making machine electrode piece feeding mechanism, comprising a bag making machine frame (1), the front of the bag making machine frame (1) is provided with a movable bearing platform (2), characterized in that: The bag making machine frame (1) is provided with a driving assembly for adjusting the movable carrying platform (2); The movable carrying platform (2) comprises: The pole piece taking component (3) is used for taking pole pieces, and the pole piece taking component (3) comprises a first air cylinder (302) and a taking nozzle (306) arranged at the output end of the first air cylinder (302); The pole piece feeding assembly (4) is used for feeding the taken pole pieces with the diaphragm, and the pole piece feeding assembly (4) comprises a second air cylinder (402) and a feeding nozzle (404) arranged at the output end of the second air cylinder (402); The diaphragm feeding assembly (5) is used for feeding the diaphragm and making the pole piece and the diaphragm in a packaging bag making position for heat sealing and cutting.

2. The gusset sheet feeding mechanism of a bag making machine according to claim 1, characterized in that: The driving assembly comprises a nut seat (201) fixedly connected to the movable carrying platform (2) and a motor (202) fixedly connected to the bag making machine frame (1), and the output end of the motor (202) is provided with a lead screw (203) in threaded connection with the nut seat (201).

3. The gusset sheet feeding mechanism of a bag making machine according to claim 2, characterized in that: The bag making machine frame (1) is fixedly connected with a support shaft seat (204) for providing reinforcing support for the lead screw (203), and the bag making machine frame (1) is provided with a limiting groove (205) corresponding to the nut seat (201).

4. The gusset sheet feeding mechanism of the bag making machine according to claim 3, characterized in that: The movable carrying platform (2) is fixedly connected with a limiting sleeve seat (206), and the bag making machine frame (1) is fixedly connected with a positioning rail (207), and the limiting sleeve seat (206) is slidingly connected to the positioning rail (207).

5. The gusset sheet feeding mechanism of a bag making machine according to claim 1, characterized in that: The pole piece taking component (3) comprises a first support frame (301) fixedly connected to the movable carrying platform (2), the first support frame (301) is used for supporting and limiting the first air cylinder (302), the output end of the first air cylinder (302) is provided with a carrying rail (303), the carrying rail (303) is movably connected with an adjusting table (304), the adjusting table (304) is fixedly connected with a mounting plate (305), the mounting plate (305) is used for supporting the taking nozzle (306), and the taking nozzle (306) is provided with a first air path connector (307).

6. The gusset sheet feeding mechanism of a bag making machine according to claim 1, characterized in that: The pole piece feeding assembly (4) comprises a second support frame (401) fixedly connected to the movable carrying platform (2), the second support frame (401) is used for supporting and limiting the second air cylinder (402), the output end of the second air cylinder (402) is provided with a supporting table (403), and the feeding nozzle (404) is fixedly connected to the supporting table (403), and the feeding nozzle (404) is provided with a second air path connector (405).

7. The gusset sheet feeding mechanism of a bag making machine according to claim 1, characterized in that: The diaphragm feeding assembly (5) comprises an assembly total support frame (501) fixedly connected to the movable carrying platform (2); The assembly total support frame (501) is provided with a third air cylinder (5011), the output end of the third air cylinder (5011) is provided with a fixed shaft seat (5012), and the fixed shaft seat (5012) is rotatably connected with a compression roller (5013).

8. The tab feeding mechanism of a bag making machine according to claim 7, characterized in that: The fourth cylinder (502) is fixedly connected on the assembly total support (501), and the output end of the fourth cylinder (502) is provided with a sliding table (5021), the sliding table (5021) is fixedly connected with a heating seat (5022), the bottom of the heating seat (5022) is movably connected with a butt joint block (5023), and the butt joint block (5023) is provided with a heat sealing head (5024) for heat sealing of the diaphragm.

9. The tab feeding mechanism of a bag making machine according to claim 8, characterized in that: The fifth cylinder (503) is fixedly connected on the assembly total support (501), and the output end of the fifth cylinder (503) is provided with a movable table (5031), and the movable table (5031) is fixedly connected with a cutter (5032) for cutting of the diaphragm.

10. The tab feeding mechanism of a bag making machine according to claim 7, characterized in that: A plurality of groups of conveying rollers (6) for conveying the diaphragm are arranged on the movable bearing platform (2).

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