Limiting device for production of aluminized film
By designing a limiting device that includes a motor drive, and using elastic components and a guiding structure to automatically limit the aluminum-coated film, the problem of offset during the conveying of the aluminum-coated film is solved, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING PENGXIANG PACKING MATERIALS CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-12
AI Technical Summary
镀铝薄膜在传送过程中容易偏移,导致镀铝不均匀性、产品质量下降,且现有限位装置结构复杂、安装维护成本高且无法灵活调节。
采用包括底板、竖板、传送辊、电机、椭圆转盘、牵拉杆、连接架、滑座、滑环和限位环的限位装置,通过电机驱动传送辊转动,利用弹性组件和导向结构实现对薄膜的自动化限位和稳定性控制。
It improves the efficiency and quality of aluminized film production, reduces the scrap rate, ensures the stability and positioning accuracy of the film during the conveying process, and avoids hard damage.
Smart Images

Figure CN224227195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum-plated film production technology, and in particular to a limiting device for aluminum-plated film production. Background Technology
[0002] In the production process of aluminized film, ensuring the stability of the film during transport is of paramount importance.
[0003] In traditional metallized film production processes, film misalignment is common on the conveyor rollers. This misalignment not only affects the uniformity of metallization and reduces product quality, but can also lead to wrinkles or even breakage during transport, increasing scrap rates and production costs. Existing limiting devices are complex in structure, have high installation and maintenance costs, and cannot flexibly adjust to the actual conditions of the film in practical use, making it difficult to meet the demands of efficient, high-quality metallized film production.
[0004] Therefore, we propose a limiting device for aluminum-coated thin film production. Utility Model Content
[0005] The main objective of this invention is to provide a limiting device for the production of aluminized films. This device prevents the aluminized film from shifting on the conveyor rollers, thus avoiding impacts on the uniformity of aluminization and reduced product quality. It also prevents wrinkles or even breakage of the film during conveying, thereby reducing the scrap rate. Furthermore, it addresses the problems of existing limiting devices, such as complex structures, high installation and maintenance costs, and the inability to flexibly adjust the limiting position according to the actual film conditions. This improves the efficiency and quality of aluminized film production, reduces production costs, and meets the demand for high-efficiency, high-quality aluminized film production. It effectively solves the problems in the background technology.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A limiting device for aluminum-coated film production includes a base plate, with symmetrical vertical plates at both ends of the upper surface of the base plate. A conveying roller is rotatably connected between the two vertical plates. A second motor is fixedly installed on the outer wall of one of the vertical plates. The output shaft of the second motor is coaxially connected to one end of the conveying roller. A support plate is provided below the conveying roller, and both ends of the support plate are fixedly connected to the inner sidewalls of the two vertical plates. A bracket is fixedly connected to the middle of the bottom end of the support plate. A first motor is fixedly installed at the bottom end of the bracket. The output end of the first motor passes through the bracket and is fixedly connected to an elliptical turntable. Both ends of the elliptical turntable are hinged with pull rods, and the end of the pull rod away from the elliptical turntable is hinged with a connecting frame.
[0008] A slide block is mounted on the connecting frame via a guide assembly. A slip ring is fixedly connected to the top of the slide block. A transverse elastic component is mounted on the slip ring, and a limit ring is mounted on the transverse elastic component. Both the slip ring and the limit ring are sleeved on the outside of the conveyor roller and are slidably connected to the conveyor roller.
[0009] By adopting the above technical solution, during the production of aluminized film, the second motor starts, and its output shaft drives the conveyor roller to rotate between two vertical plates, thereby realizing the conveying of the aluminized film on the conveyor roller. At the same time, the first motor starts, and its output end drives the elliptical turntable to rotate. When the elliptical turntable rotates, the pull rods hinged at both ends will pull along with the rotation of the elliptical turntable. The pull rods will drive the connecting frame to move. The connecting frame is equipped with a slide block through the guide assembly. The slip ring at the top of the slide block is sleeved on the outside of the conveyor roller and can slide and engage with the conveyor roller. When the connecting frame moves, it will drive the slide block and slip ring to move on the conveyor roller. A transverse elastic component is installed on the slip ring. The limiting ring is installed on the transverse elastic component and is also sleeved on the outside of the conveyor roller and can slide and engage with the conveyor roller. The movement of the slip ring is transmitted to the limiting ring through the transverse elastic component, so that the limiting ring also moves on the conveyor roller. The presence of the transverse elastic component allows the limiting ring to limit the film through elastic force when it contacts the film, preventing the film from shifting during the conveying process, thereby realizing the limiting function of the aluminized film.
[0010] Furthermore, the guide assembly includes a sleeve block fixedly connected to the top of the connecting frame, and a guide rod fixedly connected to the vertical plate passes through the sleeve block.
[0011] By adopting the above technical solution, firstly, the guide rod is fixedly connected to the vertical plate. It is a fixed guiding component with an unchanged position. The sleeve block is fixedly connected to the top of the connecting frame. The connecting frame tends to shift as the traction rod moves. When the first motor drives the elliptical turntable to rotate, which in turn causes the traction rod to move the connecting frame, the connecting frame can only move along the direction of the guide rod because the sleeve block passes through the guide rod. The guide rod restricts the direction of movement of the sleeve block, so that the movement path of the connecting frame is along the axial direction of the guide rod. This guiding effect ensures the stability and directionality of the movement of the connecting frame, thereby ensuring that the slide block, slip ring, and limiting ring can move smoothly on the conveyor roller to achieve effective limiting of the aluminum-coated film.
[0012] Furthermore, a first spring is sleeved on the outside of the guide rod, and the first spring is connected between the sleeve block and the inner wall of the vertical plate.
[0013] By adopting the above technical solution, when the device is not started, the first spring is in its natural state, connecting the sleeve block and the inner wall of the vertical plate. At this time, the spring exerts an initial force on the sleeve block. When the connecting frame starts to move with the movement of the traction rod, the sleeve block will slide along the guide rod. If the movement direction of the connecting frame is to bring the sleeve block closer to the inner wall of the vertical plate, the sleeve block will compress the first spring. At this time, the first spring will generate an elastic restoring force opposite to the compression direction. This force will act on the sleeve block, trying to prevent the sleeve block from getting closer to the inner wall of the vertical plate. Conversely, if the movement direction of the connecting frame is to move the sleeve block away from the inner wall of the vertical plate, the first spring will be stretched, and the first spring will generate a pulling force. This pulling force will try to pull the sleeve block back to its initial position.
[0014] The presence of the first spring can play a role in buffering and shock absorption. During the process of the connecting frame driving the slide, slip ring and limit ring to move, vibration or impact may occur due to changes in movement speed or external interference. The first spring can absorb these vibrations and impacts, making the movement of the connecting frame and the entire limiting device more stable.
[0015] Furthermore, two symmetrical sliding grooves are horizontally formed on the support plate, and the sleeve block is located inside the sliding groove, with the sleeve block and the sliding groove being slidably connected.
[0016] By adopting the above technical solution, the slide groove on the support plate is opened laterally, and the sleeve block is located inside the slide groove and can slide and connect with the slide groove. This constitutes a lateral sliding guide structure, in which the slide groove limits the movement path of the sleeve block. When the connecting frame moves under the drive of the pull rod, the sleeve block, because it is fixedly connected to the connecting frame, will also move. At this time, the sleeve block can only slide laterally within the slide groove. This lateral sliding connection can ensure that the connecting frame drives the slide seat, slide ring, and limit ring to move laterally on the conveyor roller to achieve the limiting function of the aluminum-coated film. The sliding connection between the slide groove and the sleeve block provides a stable guide for the movement of the connecting frame. It prevents the sleeve block from swaying up and down or deviating from the predetermined lateral trajectory during the movement, making the movement of the connecting frame more accurate and stable. In this way, the limit ring indirectly controlled by the connecting frame can also more accurately limit the aluminum-coated film, improving the limiting accuracy of the entire device in the aluminum-coated film production process.
[0017] Furthermore, the lateral elastic component includes limiting holes formed on the slip ring, and multiple limiting holes are arranged in a ring array with the slip ring as the center.
[0018] By adopting the above technical solution, multiple limiting holes are opened on the slip ring, and these limiting holes are distributed in a ring array around the ring center. This structure lays the foundation for the elastic connection and limiting function of the subsequent transverse elastic components.
[0019] Furthermore, a slide rod is slidably installed laterally inside the limiting hole, one end of the slide rod is fixedly connected to the limiting ring, and a second spring is fixedly connected between the slide ring and the limiting ring.
[0020] By adopting the above technical solution, the slide rod is laterally slidably installed in the limiting hole, with one end fixedly connected to the limiting ring. This establishes a relative positional relationship between the limiting ring and the sliding ring through the slide rod, allowing the slide rod to slide laterally within the limiting hole. This limits the movement direction of the limiting ring relative to the sliding ring to the lateral direction. Simultaneously, a second spring is fixedly connected between the sliding ring and the limiting ring. The second spring, acting as an elastic element, provides elastic force. When the limiting ring is subjected to the force of the aluminum-coated film, such as the thrust generated by the film's positional shift during transport, the limiting ring will displace under the force. Since the slide rod is fixedly connected to the limiting ring and can slide laterally within the limiting hole, the displacement of the limiting ring will cause the slide rod to slide within the limiting hole. At this time, the second spring will... The limiting ring undergoes elastic deformation due to displacement. If the film's thrust causes the limiting ring to move away from the slip ring, the second spring will be stretched, generating a pulling force to try to pull the limiting ring back to its original position. If the film's thrust causes the limiting ring to move closer to the slip ring, the second spring will be compressed, generating a spring force to try to push the limiting ring away and restore it to its original position. This structure allows the limiting ring to flexibly adjust its position within a certain range to adapt to possible positional changes in the aluminized film during transport. Through the elastic restoring force of the second spring, the limiting ring is always kept in a suitable position, thereby effectively limiting the aluminized film, preventing excessive film displacement, ensuring the positional stability of the aluminized film on the conveyor roller, and facilitating the smooth progress of the aluminization process.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] (1) The present invention provides a limiting device for the production of aluminized film. The first motor drives the elliptical turntable to rotate, and then the pull rod drives the connecting frame to move, so that the slide and the slip ring move on the conveying roller, and finally drive the limiting ring to move. The whole process is highly automated and can continuously and stably limit the aluminized film in the conveying process, which greatly improves the limiting efficiency, ensures the stability of the film in the conveying process, reduces the production interruption caused by film deviation, and improves the production efficiency.
[0023] (2) This utility model provides a limiting device for aluminum-plated thin film production. Since the limiting ring is mounted on the slip ring via a transverse elastic component, when the limiting ring contacts the film, the transverse elastic component generates an elastic force. This elastic force not only effectively limits the film and prevents it from shifting, but also avoids hard damage to the film caused by the limiting ring. During film conveying, even if slight vibrations or unevenness occur, the elastic component can adaptively adjust through its own elastic deformation, ensuring both the limiting effect and protecting the integrity of the film, thus improving product quality. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of a limiting device for aluminum-plated thin film production according to the present invention.
[0025] Figure 2 This is a schematic diagram of the guide component structure of a limiting device for aluminum-coated thin film production according to the present invention.
[0026] Figure 3 This is a schematic diagram of the transverse elastic component structure of a limiting device for aluminum-coated thin film production according to the present invention.
[0027] In the diagram: 1. Base plate; 2. Vertical plate; 3. Support plate; 4. Bracket; 5. First motor; 6. Elliptical turntable; 7. Pull rod; 8. Connecting frame; 9. Slide seat; 10. Slip ring; 11. Limiting ring; 12. Sleeve block; 13. Guide rod; 14. First spring; 15. Limiting hole; 16. Slide rod; 17. Second spring; 18. Conveyor roller; 19. Second motor; 20. Slide groove. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] To prevent the metallized film from shifting on the conveyor rollers, thus avoiding issues like uneven metallization and reduced product quality, and to prevent wrinkles or even breakage during transport to reduce scrap rates, this method addresses the problems of existing limit devices being complex in structure, costly in installation and maintenance, and unable to flexibly adjust limits according to the actual film conditions. The goal is to improve the efficiency and quality of metallized film production, reduce production costs, and meet the demands for high-efficiency, high-quality metallized film production. Figure 1 , Figure 2 , Figure 3As shown, a limiting device for aluminum-coated film production includes a base plate 1. Symmetrical vertical plates 2 are provided at both ends of the upper surface of the base plate 1. A conveyor roller 18 is rotatably connected between the two vertical plates 2. A second motor 19 is fixedly installed on the outer wall of one of the vertical plates 2. The output shaft of the second motor 19 is coaxially connected to one end of the conveyor roller 18. A support plate 3 is provided below the conveyor roller 18, and both ends of the support plate 3 are fixedly connected to the inner side walls of the two vertical plates 2. A bracket 4 is fixedly connected to the middle of the bottom end of the support plate 3. A first motor 5 is fixedly installed at the bottom end of the bracket 4. The output end of the first motor 5 passes through the bracket 4 and is fixedly connected to an elliptical turntable 6. Pull rods 7 are hinged to both ends of the elliptical turntable 6. A connecting frame 8 is hinged to the end of the pull rod 7 away from the elliptical turntable 6.
[0030] A slide block 9 is mounted on the connecting frame 8 via a guide assembly. A slip ring 10 is fixedly connected to the top of the slide block 9. A transverse elastic component is mounted on the slip ring 10, and a limit ring 11 is mounted on the transverse elastic component. Both the slip ring 10 and the limit ring 11 are sleeved on the outside of the conveyor roller 18 and are slidably connected to the conveyor roller 18.
[0031] In use, during the production of aluminized film, the second motor 19 starts, and its output shaft drives the conveyor roller 18 to rotate between the two vertical plates 2, thereby realizing the conveying of the aluminized film on the conveyor roller 18. At the same time, the first motor 5 starts, and its output end drives the elliptical turntable 6 to rotate. When the elliptical turntable 6 rotates, the pull rods 7 hinged at both ends will pull along with the rotation of the elliptical turntable 6. The pull rods 7 will drive the connecting frame 8 to move. The connecting frame 8 is equipped with a slide block 9 through a guide assembly. The slip ring 10 at the top of the slide block 9 is sleeved on the outside of the conveyor roller 18 and can slide and connect with the conveyor roller 18. When the connecting frame 8 During operation, the slide block 9 and the slip ring 10 move on the conveyor roller 18. A transverse elastic component is installed on the slip ring 10, and a limiting ring 11 is installed on the transverse elastic component and is also sleeved on the outside of the conveyor roller 18 and can slide and connect with the conveyor roller 18. The movement of the slip ring 10 is transmitted to the limiting ring 11 through the transverse elastic component, so that the limiting ring 11 also moves on the conveyor roller 18. The presence of the transverse elastic component allows the limiting ring 11 to limit the film through elastic force when it contacts the film, preventing the film from shifting during the conveying process, thereby realizing the limiting function of the aluminum-coated film.
[0032] For example, such as Figure 2 As shown, the present invention also includes a guide assembly comprising a sleeve block 12 fixedly connected to the top of the connecting frame 8, wherein a guide rod 13 fixedly connected to the vertical plate 2 passes through the sleeve block 12.
[0033] In use, firstly, the guide rod 13 is fixedly connected to the vertical plate 2. It is a fixed guiding component and its position remains unchanged. The sleeve block 12 is fixedly connected to the top of the connecting frame 8. The connecting frame 8 will tend to move with the movement of the pull rod 7. When the first motor 5 drives the elliptical turntable 6 to rotate, and thus causes the pull rod 7 to drive the connecting frame 8 to move, since the sleeve block 12 passes through the guide rod 13, the connecting frame 8 can only move along the direction of the guide rod 13. The guide rod 13 plays a role in restricting the movement direction of the sleeve block 12, so that the movement path of the connecting frame 8 is along the axial direction of the guide rod 13. This guiding effect ensures the stability and directionality of the movement of the connecting frame 8, thereby ensuring that the slide block 9, the slip ring 10 and the limiting ring 11 can move smoothly on the conveyor roller 18 to achieve effective limiting of the aluminum-coated film.
[0034] For example, such as Figure 2 As shown, the present invention also includes a first spring 14 sleeved on the outside of the guide rod 13, the first spring 14 being connected between the sleeve block 12 and the inner wall of the vertical plate 2.
[0035] When in use, before the device is started, the first spring 14 is in its natural state, connecting the sleeve block 12 and the inner wall of the vertical plate 2. At this time, the spring exerts an initial force on the sleeve block 12. When the connecting frame 8 starts to move with the movement of the pull rod 7, the sleeve block 12 will slide along the guide rod 13. If the movement direction of the connecting frame 8 is to bring the sleeve block 12 closer to the inner wall of the vertical plate 2, the sleeve block 12 will compress the first spring 14. At this time, the first spring 14 will generate an elastic restoring force opposite to the compression direction. This force will act on the sleeve block 12, trying to prevent the sleeve block 12 from getting closer to the inner wall of the vertical plate 2. Conversely, if the movement direction of the connecting frame 8 is to move the sleeve block 12 away from the inner wall of the vertical plate 2, the first spring 14 will be stretched, and the first spring 14 will generate a pulling force. This pulling force will try to pull the sleeve block 12 back to its initial position.
[0036] The presence of the first spring 14 can play a role in buffering and shock absorption. During the process of the connecting frame 8 driving the slide 9, the slip ring 10 and the limiting ring 11 to move, vibration or impact may occur due to changes in movement speed or external interference. The first spring 14 can absorb these vibrations and impacts, making the movement of the connecting frame 8 and the entire limiting device more stable.
[0037] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes two symmetrical sliding grooves 20 horizontally opened on the support plate 3, the sleeve block 12 is located inside the sliding groove 20, and the sleeve block 12 is slidably connected to the sliding groove 20.
[0038] In use, the groove 20 on the support plate 3 is opened laterally, and the sleeve block 12 is located inside the groove 20 and can slide and engage with the groove 20. This constitutes a lateral sliding guide structure, in which the groove 20 limits the movement path of the sleeve block 12. When the connecting frame 8 moves under the drive of the pull rod 7, the sleeve block 12, because it is fixedly connected to the connecting frame 8, will also move accordingly. At this time, the sleeve block 12 can only slide laterally within the groove 20. This lateral sliding engagement can ensure that the connecting frame 8 drives the slide seat 9, the slip ring 10, and the limit switch. The ring 11 moves laterally on the conveyor roller 18 to limit the movement of the aluminum-coated film. The sliding connection between the slide groove 20 and the sleeve block 12 provides a stable guide for the movement of the connecting frame 8. It prevents the sleeve block 12 from swaying up and down or deviating from the predetermined lateral trajectory during the movement, making the movement of the connecting frame 8 more precise and stable. In this way, the limiting ring 11, which is indirectly controlled by the connecting frame 8, can also limit the aluminum-coated film more accurately, improving the limiting accuracy of the entire device in the aluminum-coated film production process.
[0039] For example, such as Figure 3 As shown, the present invention also includes a limiting hole 15 formed on the slip ring 10, and the limiting hole 15 is arranged in a ring array with the slip ring 10 as the center.
[0040] In use, the slip ring 10 has multiple limiting holes 15, and these limiting holes 15 are distributed in a ring array around the ring center of the slip ring 10. This structure lays the foundation for the elastic connection and limiting function of the subsequent lateral elastic components.
[0041] For example, such as Figure 3 As shown, the present invention also includes a slide rod 16 that is laterally slidably installed in the limiting hole 15, one end of the slide rod 16 being fixedly connected to the limiting ring 11, and a second spring 17 being fixedly connected between the slide ring 10 and the limiting ring 11.
[0042] In use, the slide rod 16 is laterally slidably installed in the limiting hole 15, with one end fixedly connected to the limiting ring 11. This establishes a relative positional relationship between the limiting ring 11 and the sliding ring 10 through the slide rod 16, and the slide rod 16 can slide laterally within the limiting hole 15, thus limiting the movement direction of the limiting ring 11 relative to the sliding ring 10 to the lateral direction. Simultaneously, a second spring 17 is fixedly connected between the sliding ring 10 and the limiting ring 11. The second spring 17 acts as an elastic element, providing elastic force. When the limiting ring 11 is subjected to the force of the aluminum-plated film, such as the thrust generated by the film's positional shift during transport, the limiting ring 11 will displace under the force. Since the slide rod 16 is fixedly connected to the limiting ring 11 and can slide laterally within the limiting hole 15, the displacement of the limiting ring 11 will cause the slide rod 16 to slide within the limiting hole 15. At this time, the second spring 16... The second spring 17 will elastically deform as the limiting ring 11 is displaced. If the pushing force of the film causes the limiting ring 11 to move away from the slip ring 10, the second spring 17 will be stretched, generating a pulling force to try to pull the limiting ring 11 back to its original position. If the pushing force of the film causes the limiting ring 11 to move closer to the slip ring 10, the second spring 17 will be compressed, generating a spring force to try to push the limiting ring 11 away and restore it to its original position. This structure allows the limiting ring 11 to flexibly adjust its position within a certain range to adapt to possible positional changes in the aluminum-coated film during the conveying process. Through the elastic restoring force of the second spring 17, the limiting ring 11 is always kept in a suitable position, thereby effectively limiting the aluminum-coated film, preventing excessive film displacement, ensuring the positional stability of the aluminum-coated film on the conveying roller 18, and facilitating the smooth progress of the aluminum coating process.
[0043] It should be noted that this utility model is a limiting device for the production of aluminized film. When the second motor 19 is started, its output shaft drives the conveyor roller 18 to rotate between the two vertical plates 2, realizing the conveying of the aluminized film on the conveyor roller 18. Simultaneously, the first motor 5 is started, and its output end drives the elliptical turntable 6 to rotate. When the elliptical turntable 6 rotates, the tension rods 7 hinged at both ends will pull along with the rotation of the elliptical turntable 6. The tension rods 7 drive the connecting frame 8 to move. The connecting frame 8 moves in cooperation with the guide rod 13 through the guide component sleeve 12, causing the sleeve 12 to move along the direction of the guide rod 13, thereby driving the slide block 9 and the slip ring 10 to move on the conveyor roller 18. The transverse elastic component slide rod 16 on the slip ring 10... The second spring 17 transmits the movement of the slip ring 10 to the limiting ring 11, causing the limiting ring 11 to also move on the conveyor roller 18. When the limiting ring 11 contacts the film, the second spring 17 in the transverse elastic component limits the film through elastic force, preventing the film from shifting during the conveying process. During the movement of the connecting frame 8, if the sleeve block 12 approaches or moves away from the inner wall of the vertical plate 2, the first spring 14 will compress or stretch, playing a buffering and shock-absorbing role, ensuring that the connecting frame 8 and the entire limiting device move smoothly. The sleeve block 12 slides laterally in the slide groove 20 on the support plate 3, ensuring that the connecting frame 8 drives the slide block 9, slip ring 10 and limiting ring 11 to move laterally on the conveyor roller 18, improving the limiting accuracy.
[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A limiting device for aluminum-plated thin film production, comprising a base plate (1), characterized in that, The upper end face of the base plate (1) is provided with symmetrical vertical plates (2) at both ends. A conveyor roller (18) is rotatably connected between the two vertical plates (2). A second motor (19) is fixedly installed on the outer wall of one of the vertical plates (2). The output shaft of the second motor (19) is coaxially connected to one end of the conveyor roller (18). A support plate (3) is provided below the conveyor roller (18). The two ends of the support plate (3) are fixedly connected to the inner side walls of the two vertical plates (2). A bracket (4) is fixedly connected to the middle of the bottom end of the support plate (3). A first motor (5) is fixedly installed at the bottom end of the bracket (4). The output end of the first motor (5) passes through the bracket (4) and is fixedly connected to an elliptical turntable (6). Both ends of the elliptical turntable (6) are hinged with a pull rod (7). A connecting frame (8) is hinged to the end of the pull rod (7) away from the elliptical turntable (6). A slide block (9) is installed on the connecting frame (8) via a guide assembly. A slip ring (10) is fixedly connected to the top of the slide block (9). A transverse elastic component is installed on the slip ring (10), and a limit ring (11) is installed on the transverse elastic component. The slip ring (10) and the limit ring (11) are both sleeved on the outside of the conveyor roller (18) and are slidably connected to the conveyor roller (18).
2. The limiting device for aluminum-plated thin film production according to claim 1, characterized in that: The guide assembly includes a sleeve (12) fixedly connected to the top of the connecting frame (8), and a guide rod (13) fixedly connected to the vertical plate (2) passes through the sleeve (12).
3. The limiting device for aluminum-plated thin film production according to claim 2, characterized in that: The guide rod (13) is fitted with a first spring (14), which is connected between the sleeve block (12) and the inner wall of the vertical plate (2).
4. A limiting device for aluminum-plated thin film production according to claim 3, characterized in that: The support plate (3) has two symmetrical sliding grooves (20) opened horizontally. The sleeve block (12) is located inside the sliding groove (20) and the sleeve block (12) is slidably connected to the sliding groove (20).
5. A limiting device for aluminum-plated thin film production according to claim 1, characterized in that: The lateral elastic component includes a limiting hole (15) opened on the slip ring (10), and there are multiple limiting holes (15) arranged in a ring array with the slip ring (10) as the center.
6. A limiting device for aluminum-plated thin film production according to claim 5, characterized in that: A slide rod (16) is slidably installed in the limiting hole (15). One end of the slide rod (16) is fixedly connected to the limiting ring (11). A second spring (17) is fixedly connected between the slide ring (10) and the limiting ring (11).