Sheet unwinding device

Abstract

The utility model relates to a sheet unwinding device which comprises a base and an unwinding frame arranged on the base in a sliding mode. The base is provided with an adjusting assembly connected with the unwinding frame, and the adjusting assembly is used for controlling the position of the unwinding frame on the base. The unwinding frame is provided with an unwinding shaft, an unwinding driving part, a plurality of feeding roll shafts and a film receiving assembly, the unwinding shaft is rotationally installed on the unwinding frame, the output end of the unwinding driving part is connected with one end of the unwinding shaft, the feeding roll shafts are arranged on the unwinding frame at intervals, and the film receiving assembly is connected with the unwinding shaft. And the film connecting assembly is used for connecting different rolls of sheets. The position of the unwinding frame can be accurately controlled through the unwinding frame arranged on the base in a sliding mode in combination with the adjusting assembly on the base, namely, the deviation rectifying function is achieved, and position deviation rectifying can be conducted on sheets after installation is completed. And the film connecting assembly can quickly and accurately connect different rolls of sheets, so that the time for replacing and connecting the sheets is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automation equipment, in particular to a sheet material unwinding device. Background Art

[0002] In the process of battery processing and production, sheet-shaped coils such as metal foil need to be processed, such as electroplating. Existing sheet processing usually adopts an automated processing method, which has the functions of automatic unwinding and automatic rewinding. However, most of the unwinding equipment on the market uses a simple motor and roller combination to unwind the sheet, that is, the coil is installed on the roller, and the motor controls the rotation of the roller to achieve the function of automatic unwinding. This type of equipment makes it impossible to change the position of the coil after installation, and it is necessary to ensure the accuracy of the position during installation, so repeated adjustments are required to ensure the installation accuracy. In addition, each time the coil is changed, the sheet needs to be re-threaded so that the sheet can be transported in the specified direction, which increases the processing time and reduces the processing efficiency. Utility Model Content

[0003] In view of this, the utility model provides a sheet unwinding device with a deviation correction function, which is convenient for sheet replacement and connection.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A sheet unwinding device comprises: a base, and an unwinding frame slidably arranged on the base; the base is provided with an adjusting component connected to the unwinding frame, and the adjusting component is used to control the position of the unwinding frame on the base; the unwinding frame is provided with an unwinding shaft, an unwinding driving component, a plurality of feeding roller shafts, and a film splicing component, the unwinding shaft is rotatably mounted on the unwinding frame, the output end of the unwinding driving component is connected to one end of the unwinding shaft, the plurality of feeding roller shafts are spaced apart on the unwinding frame, and the film splicing component is used to connect sheets of different rolls.

[0006] In the above technical solution, when unwinding, the sheet is placed on the unwinding shaft, so that the sheet passes through different feeding rollers in turn and then docks with the processing equipment, and then the unwinding shaft is driven to rotate by the unwinding drive to realize the automatic unwinding function. In addition, the device can realize precise control of the position of the unwinding frame by sliding the unwinding frame on the base and combining the adjustment component on the base, that is, it has a correction function, and the position of the sheet can be corrected after installation, thereby improving the flexibility of operation and facilitating the precise alignment of the sheet.

[0007] At the same time, the film splicing assembly installed on the unwinding rack can effectively improve production efficiency and material utilization. In the actual production process, when a roll of sheet material is used up and needs to be replaced, the film splicing assembly can quickly and accurately connect different rolls of sheet material, greatly reducing the time for sheet material replacement and connection, improving the continuity of the production process, and thus improving production efficiency.

[0008] Optionally, in a possible implementation, the film joining assembly includes a film pad plate and two groups of film pressing units, the film pad plate is mounted on the unwinding frame, and the two groups of film pressing units are mounted on the film pad plate and are spaced apart along the conveying direction of the sheet.

[0009] In the above technical scheme, when the coil is replaced, the end of the old coil is pressed by the film pressing unit located at the rear end of the sheet conveying direction to stop it from being conveyed, and the front end of the new coil is pressed by the film pressing unit located at the front end of the sheet conveying direction. At this time, the overlapping part of the new coil and the old coil is cut off by a cutter, and then the waste is removed, and then the end of the old coil and the front end of the new coil are glued together by tape to achieve the docking of the sheets.

[0010] The above structure is simple and effective. The film pad serves as a supporting structure for the sheet and is stably installed on the unwinding rack, providing a solid foundation for the film pressing unit. The two groups of film pressing units are arranged at intervals along the sheet conveying direction to ensure that the new and old sheets can be tightly connected during the sheet replacement process, avoiding production interruptions and sheet waste due to loose connections.

[0011] Optionally, in a possible implementation, the film pressing unit includes a film pressing driver, a connecting block and a film pressing plate, the film pressing driver is installed on the film pad plate, the film pressing plate can be placed on the film pad plate in contact, and the connecting block is used to connect the output end of the film pressing driver and the film pressing plate.

[0012] In the above technical solution, the structure design of the film pressing unit is compact and efficient. The film pressing drive is directly installed on the film pad, which not only ensures stability but also saves space. The connecting block serves as a bridge between the film pressing drive and the film pressing plate, ensuring efficient power transmission. At the same time, the structure is simple and convenient for installation and maintenance. The film pressing drive accurately controls the lifting action of the film pressing plate through the connecting block to achieve accurate pressure on the new and old sheets. The contactable design of the film pressing plate ensures that it can fit closely with the sheet when pressurizing, achieving a good film splicing effect.

[0013] Optionally, in a possible implementation, the film pressing driving member and the connecting block are two groups arranged opposite to each other, and can respectively drive the two ends of the film pressing plate to move.

[0014] The above structural design ensures the stability and uniformity of the film pressing process. The two sets of film pressing driving parts and connecting blocks arranged opposite to each other can synchronously drive the two ends of the film pressing plate to rise and fall, thereby ensuring that during the film splicing process, the film pressing plate is always raised and lowered horizontally, so that the pressure applied to the sheet is evenly distributed, avoiding film splicing quality problems caused by uneven pressure. In addition, this design also helps to reduce equipment failure rate and maintenance costs. Since the two sets of driving parts and connecting blocks can back up each other and work together, when one set fails, the other set can continue to work, ensuring the continuity of production.

[0015] Optionally, in a possible implementation, a guide rod is provided on the connecting block, and the guide rod is movably inserted on the cushion membrane plate.

[0016] In the above technical solution, the guide rod is inserted into the film pad, providing stable guidance and support for the film pressing plate during the lifting process, avoiding the problem of inaccurate film connection or equipment damage caused by shaking or offset. At the same time, the movable insertion method of the guide rod also ensures the stability and smoothness of the film pressing plate during the movement, further improving the quality and efficiency of film connection.

[0017] Optionally, in a possible implementation, both ends of the cushion film plate are detachably mounted on the unwinding frame via a fixing seat.

[0018] In the above technical solution, through the detachable connection between the fixed seat and the unwinding frame, the operator can quickly complete the installation of the pad film plate, and can also easily remove it when necessary for replacement or maintenance, which greatly improves the efficiency and flexibility of the equipment and reduces the time and labor costs caused by installation and disassembly difficulties.

[0019] Optionally, in a possible implementation, the number of the bases is two and the bases are spaced apart from each other. A slide rail is disposed on the base, and the unwinding rack is slidably connected to the slide rail via a slider.

[0020] In the above technical solution, since there are two bases arranged at intervals, they can disperse the weight of the unwinding frame and the sheet, effectively reducing the pressure on a single base, thereby enhancing the stability of the entire equipment, and at the same time making the unwinding frame suspended, facilitating the movement and position adjustment of the unwinding frame.

[0021] Optionally, in a possible implementation, the adjustment assembly includes a mounting block, an adjustment rod and a handle, the mounting block is fixed on one of the bases, the adjustment rod is threadedly connected to the mounting block, one end of the adjustment rod is connected to the handle, and the other end is connected to the unwinding frame through an extension plate.

[0022] In the above technical solution, the adjusting rod is rotated by rotating the handle, and since the adjusting rod is threadedly connected to the mounting block and connected to the unwinding frame through the extension plate, the adjusting rod will synchronously drive the unwinding frame to move along the slide rail when rotating, thereby realizing the position adjustment of the unwinding frame. The structure is clear and the connection relationship between the various components is simple, so it is easy to check and repair when a fault occurs.

[0023] Optionally, in a possible implementation, the feeding roller includes a fixed roller and a movable roller, there are multiple fixed rollers and multiple movable rollers, and the movable roller is detachably mounted on the unwinding frame.

[0024] In the above technical solution, the coordinated use of multiple fixed rollers and movable rollers can better support and guide the conveying of the sheet. The fixed rollers provide stable support, while the movable rollers can be adjusted as needed to ensure that the sheet remains flat and stable during the conveying process, which helps to reduce problems such as wrinkles and offsets in the sheet during the conveying process and improve the quality of the film splicing.

[0025] Optionally, in a possible implementation, both ends of the movable roller shaft and both ends of the unwinding shaft are rotatably mounted on the unwinding frame via bearing seats, and the unwinding drive member is mounted on the unwinding frame via a connecting seat.

[0026] In the above technical solution, the bearing seat, as a special supporting and positioning device, can provide stable supporting force and good rotation performance, so that the roller is not prone to shaking or jamming during operation, ensuring that the sheet can be fed smoothly through the roller and effectively reducing production failures caused by poor rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The figure is a schematic diagram of the overall structure of an embodiment of the utility model.

[0029] Figure 2 It is a structural schematic diagram of a film connection assembly according to one embodiment of the utility model.

[0030] Figure markings: 1-base; 11-slide rail; 2-unwinding rack; 21-slider; 22-extension plate; 3-adjustment assembly; 31-mounting block; 32-adjustment rod; 33-handle; 4-unwinding shaft; 5-unwinding drive; 6-feeding roller; 61-fixed roller; 62-movable roller; 7-film connecting assembly; 71-film pad plate; 72-film pressing unit; 721-film pressing drive; 722-connecting block; 723-film pressing plate; 73-guide rod; 74-fixed seat; 8-bearing seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] Please refer to Figure 1 and Figure 2 The present embodiment provides a sheet unwinding device, comprising: a base 1, and an unwinding frame 2 slidably arranged on the base 1; an adjusting component 3 connected to the unwinding frame 2 is arranged on the base 1, and the adjusting component 3 is used to control the position of the unwinding frame 2 on the base 1; an unwinding shaft 4, an unwinding driving component 5, a plurality of feeding roller shafts 6, and a film connection component 7 are arranged on the unwinding frame 2, the unwinding shaft 4 is rotatably mounted on the unwinding frame 2, the output end of the unwinding driving component 5 is connected to one end of the unwinding shaft 4, the plurality of feeding roller shafts 6 are arranged at intervals on the unwinding frame 2, and the film connection component 7 is used to connect sheets of different rolls. Among them, the unwinding driving component 5 is a rotating driving component such as a motor or a rotary cylinder.

[0034] In this embodiment, when unwinding, the sheet is placed on the unwinding shaft 4, so that the sheet passes through different feeding rollers 6 in sequence and then docks with the processing equipment, and then the unwinding drive 5 drives the unwinding shaft 4 to rotate to realize the automatic unwinding function. In addition, the device can realize the precise control of the position of the unwinding frame 2 by sliding the unwinding frame 2 on the base 1 and combining the adjustment component 3 on the base 1, that is, it has a correction function, and the position of the sheet can be corrected after the installation is completed, thereby improving the flexibility of operation and facilitating the precise alignment of the sheet.

[0035] At the same time, the film splicing assembly 7 arranged on the unwinding rack 2 can effectively improve production efficiency and material utilization. In the actual production process, when a roll of sheet material is used up and needs to be replaced, the film splicing assembly 7 can quickly and accurately connect sheets of different rolls, greatly reducing the time for sheet material replacement and connection, improving the continuity of the production process, and thus improving production efficiency.

[0036] In this embodiment, the film splicing assembly 7 includes a film pad 71 and two sets of film pressing units 72. The film pad 71 is mounted on the unwinding frame 2. The two sets of film pressing units 72 are mounted on the film pad 71 and are spaced apart along the conveying direction of the sheet. A knife groove can be provided on the film pad 71. The knife groove is located between the two sets of film pressing units 72. The knife groove allows a cutter to pass through, so as to facilitate cutting of the sheet.

[0037] In this embodiment, when the coil is replaced, the end of the old coil is pressed by the film pressing unit 72 located at the rear end of the sheet conveying direction to stop it from being conveyed, and the front end of the new coil is pressed by the film pressing unit 72 located at the front end of the sheet conveying direction. At this time, the overlapping part of the new coil and the old coil is cut by a cutter, and then the waste is removed, and then the end of the old coil and the front end of the new coil are attached by tape to achieve the docking of the sheets. It should be noted that the processes of cutting and attaching tape can be operated manually.

[0038] The film splicing assembly 7 of the present embodiment is simple and effective. The film pad 71 serves as a supporting structure for the sheet and is stably mounted on the unwinding rack 2, providing a solid foundation for the film pressing unit 72. The two groups of film pressing units 72 are spaced apart along the sheet conveying direction to ensure that the new and old sheets can be tightly connected during the sheet replacement process, thereby avoiding production interruptions and sheet waste due to loose connections.

[0039] In this embodiment, the film pressing unit 72 includes a film pressing driver 721, a connecting block 722 and a film pressing plate 723. The film pressing driver 721 is mounted on the film pad plate 71, the film pressing plate 723 can be placed on the film pad plate 71 in contact, and the connecting block 722 is used to connect the output end of the film pressing driver 721 and the film pressing plate 723. The film pressing driver 721 is a cylinder, the film pressing driver 721 is mounted on the lower surface of the film pad plate 71, the output shaft of the film pressing driver 721 extends to the upper surface of the film pad plate 71, the film pressing plate 723 can contact the upper surface of the film pad plate 71, and press the sheet material between the film pressing plate 723 and the upper surface of the film pad plate 71.

[0040] The structure design of the film pressing unit 72 of this embodiment is compact and efficient. The film pressing driving member 721 is directly installed on the film pad 71, which ensures stability and saves space. The connecting block 722 serves as a bridge between the film pressing driving member 721 and the film pressing plate 723, ensuring efficient power transmission. At the same time, the structure is simple and convenient for installation and maintenance. The film pressing driving member 721 accurately controls the lifting action of the film pressing plate 723 through the connecting block 722 to achieve accurate pressure on the new and old sheets. The contactable design of the film pressing plate 723 ensures that it can fit closely with the sheet when pressurizing, achieving a good film bonding effect.

[0041] In this embodiment, the film pressing driving member 721 and the connecting block 722 are two sets arranged opposite to each other, and can respectively drive the two ends of the film pressing plate 723 to move. The two sets of film pressing driving members 721 and the connecting block 722 are arranged symmetrically.

[0042] The above structural design ensures the stability and uniformity of the film pressing process. The two sets of film pressing driving parts 721 and connecting blocks 722 arranged opposite to each other can synchronously drive the two ends of the film pressing plate 723 to rise and fall, thereby ensuring that during the film joining process, the film pressing plate 723 is always raised and lowered horizontally, so that the pressure applied to the sheet is evenly distributed, avoiding film joining quality problems caused by uneven pressure. In addition, this design also helps to reduce equipment failure rate and maintenance costs. Since the two sets of driving parts and connecting blocks 722 can back up each other and work together, when one set fails, the other set can continue to work, ensuring the continuity of production.

[0043] In this embodiment, a guide rod 73 is provided on the connecting block 722, and the guide rod 73 is movably inserted on the pad film plate 71. The guide rod 73 can be movably connected to the pad film plate 71 through a linear bearing.

[0044] The guide rod 73 of this embodiment is inserted on the film pad plate 71, providing stable guidance and support for the film pressing plate 723 during the lifting process, avoiding the problem of inaccurate film connection or equipment damage caused by shaking or deviation. At the same time, the movable insertion method of the guide rod 73 also ensures the stability and smoothness of the film pressing plate 723 during the movement process, further improving the quality and efficiency of film connection.

[0045] In this embodiment, both ends of the film cushioning plate 71 are detachably mounted on the unwinding frame 2 through the fixing seat 74. Through the detachable connection between the fixing seat 74 and the unwinding frame 2, the operator can quickly complete the installation of the film cushioning plate 71, and can also conveniently remove it when necessary for replacement or maintenance, which greatly improves the use efficiency and flexibility of the equipment and reduces the time and labor costs caused by the difficulty of installation and disassembly.

[0046] In this embodiment, two bases 1 are arranged at intervals, and a slide rail 11 is arranged on the base 1. The unwinding frame 2 is slidably connected to the slide rail 11 through a slider 21. Since the two bases 1 are arranged at intervals, they can disperse the weight of the unwinding frame 2 and the sheet, effectively reducing the pressure on a single base 1, thereby enhancing the stability of the entire device, and at the same time making the unwinding frame 2 suspended, which is convenient for the movement and position adjustment of the unwinding frame 2.

[0047] In this embodiment, the adjustment assembly 3 includes a mounting block 31, an adjustment rod 32 and a handle 33. The mounting block 31 is fixed on one of the bases 1, the adjustment rod 32 is threadedly connected to the mounting block 31, one end of the adjustment rod 32 is connected to the handle 33, and the other end is connected to the unwinding frame 2 through an extension plate 22.

[0048] In this embodiment, the handle 33 is rotated to rotate the adjusting rod 32, and since the adjusting rod 32 is threadedly connected to the mounting block 31 and connected to the unwinding frame 2 through the extension plate 22, the adjusting rod 32 will synchronously drive the unwinding frame 2 to move along the slide rail 11 when rotating, thereby realizing the position adjustment of the unwinding frame 2. The structure is clear and the connection relationship between the various components is simple, so it is easy to check and repair when a fault occurs.

[0049] In this embodiment, the feed roller 6 includes a fixed roller 61 and a movable roller 62, and the fixed roller 61 and the movable roller 62 are multiple, and the movable roller 62 is detachably mounted on the unwinding frame 2. Among them, the position of the fixed roller 61 relative to the unwinding frame 2 cannot be adjusted, and it can be a rotating connection or a fixed connection.

[0050] By using multiple fixed rollers 61 and movable rollers 62 in coordination, the conveying of the sheet can be better supported and guided. The fixed rollers 61 provide stable support, while the movable rollers 62 can be adjusted as needed to ensure that the sheet remains flat and stable during the conveying process, which helps to reduce problems such as wrinkles and offsets in the sheet during the conveying process and improve the quality of the film splicing.

[0051] In this embodiment, both ends of the movable roller shaft 62 and both ends of the unwinding shaft 4 are rotatably mounted on the unwinding frame 2 through the bearing seat 8, and the unwinding driving member 5 is mounted on the unwinding frame 2 through the connecting seat. The bearing seat 8, as a special support and positioning device, can provide stable support force and good rotation performance, so that the roller shaft is not prone to shaking or jamming during operation, ensuring that the sheet can be smoothly fed through the roller shaft, and effectively reducing production failures caused by poor rotation.

[0052] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0053] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet unwinding device, characterized in that: include: A base, and an unwinding frame slidably arranged on the base; The base is provided with an adjustment component connected to the unwinding frame, and the adjustment component is used to control the position of the unwinding frame on the base; The unwinding frame is provided with an unwinding shaft, an unwinding drive, a plurality of feed rollers, and a film splicing assembly. The unwinding shaft is rotatably mounted on the unwinding frame, the output end of the unwinding drive is connected to one end of the unwinding shaft, the plurality of feed rollers are spaced apart on the unwinding frame, and the film splicing assembly is used to connect sheets of different rolls.

2. The sheet unwinding device according to claim 1, characterized in that: The film splicing assembly comprises a film pad plate and two groups of film pressing units. The film pad plate is mounted on the unwinding frame. The two groups of film pressing units are mounted on the film pad plate and are spaced apart along the conveying direction of the sheet.

3. The sheet unwinding device according to claim 2, characterized in that: The film pressing unit includes a film pressing driving component, a connecting block and a film pressing plate. The film pressing driving component is installed on the film pad plate. The film pressing plate can be placed on the film pad plate in contact. The connecting block is used to connect the output end of the film pressing driving component and the film pressing plate.

4. The sheet unwinding device according to claim 3, characterized in that: The film pressing driving member and the connecting block are two groups arranged opposite to each other and can respectively drive the two ends of the film pressing plate to move.

5. The sheet unwinding device according to claim 3 or 4, characterized in that: The connecting block is provided with a guide rod, and the guide rod is movably inserted on the cushion membrane plate.

6. The sheet unwinding device according to claim 2, characterized in that: Both ends of the cushion film plate are detachably mounted on the unwinding frame through fixing seats.

7. The sheet unwinding device according to claim 1, characterized in that: The bases are two arranged at intervals, a slide rail is arranged on the base, and the unwinding frame is slidably connected to the slide rail via a slider.

8. The sheet unwinding device according to claim 7, characterized in that: The adjustment assembly includes a mounting block, an adjustment rod and a handle, wherein the mounting block is fixed on one of the bases, the adjustment rod is threadedly connected to the mounting block, one end of the adjustment rod is connected to the handle, and the other end is connected to the unwinding frame through an extension plate.

9. The sheet unwinding device according to claim 1, characterized in that: The feeding roller shaft comprises a fixed roller shaft and a movable roller shaft, and the fixed roller shaft and the movable roller shaft are multiple, and the movable roller shaft is detachably mounted on the unwinding frame.

10. The sheet unwinding device according to claim 9, characterized in that: Both ends of the movable roller shaft and both ends of the unwinding shaft are rotatably mounted on the unwinding frame through bearing seats, and the unwinding driving member is mounted on the unwinding frame through a connecting seat.

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