Unwinding and correcting mechanism and rewinding machine

Abstract

This utility model relates to the field of winding device technology, and discloses an unwinding correction mechanism and a rewinding machine. The unwinding correction mechanism includes an unwinding roller and a support base; bearing seats are rotatably connected to both ends of the unwinding roller; a groove is provided on the support base; the bearing seats are slidably disposed in the groove, and an adjusting screw threadedly connected to the bearing seat is provided through the bearing seat; the axial direction of the adjusting screw is parallel to the length direction of the groove, and both ends of the adjusting screw extend outward to the outside of the support base, and both ends of the adjusting screw are connected to knobs. This utility model achieves manual correction of the unwinding roller by setting a groove perpendicular to the axial direction of the unwinding roller on the support base, and by using an adjusting screw and knob threadedly connected to the bearing seat, which significantly reduces hardware costs; at the same time, the unwinding correction mechanism provided by this utility model has a simple structure, is easy to operate, and is more suitable for the winding operation of small batches or specific types of PVC film, improving economy and practicality while ensuring the correction function.

Description

Technical Field

[0001] This utility model relates to the field of winding device technology, and in particular to an unwinding and correction mechanism and a rewinding machine. Background Technology

[0002] For some high-requirement PVC film products, a layer of copy paper needs to be sandwiched between the film layers during the factory winding process. This prevents the PVC films from sticking together, protects the smoothness of the PVC film surface, and avoids scratches on the film.

[0003] To ensure that the edges of the PVC film and copy paper are aligned during winding, the unwinding roller needs to be corrected before winding them up. To achieve this correction, Chinese patent document CN200203202125887.4 discloses a film unwinding correction adjustment mechanism. This mechanism employs a splined screw shaft and a ball-bearing splined nut sleeve structure to achieve torque transmission of the unwinding roller while simultaneously enabling axial linear movement, thereby achieving the correction action.

[0004] However, the aforementioned film unwinding and correction mechanism has high hardware and supporting control system costs, making it more suitable for online mass production. When using the aforementioned film unwinding and correction mechanism in the winding operation of small batches or specific types of PVC film, its economic efficiency is not good. Utility Model Content

[0005] The purpose of this utility model is to provide an unwinding and correction mechanism and a rewinding machine, which aims to solve the problem of poor economic efficiency when using the existing film unwinding and correction adjustment mechanism in the winding operation of small batches or specific types of PVC film.

[0006] To achieve the above objectives, the solution provided by this utility model is as follows:

[0007] The first aspect of this utility model discloses an unwinding correction mechanism, including an unwinding roller; bearing seats are rotatably connected to both ends of the unwinding roller; a support seat is also included; a sliding groove is provided on the support seat; the length direction of the sliding groove is perpendicular to the axial direction of the unwinding roller; the bearing seats are slidably disposed in the sliding groove, and an adjusting screw threadedly connected to the bearing seat is provided through the bearing seat; the axial direction of the adjusting screw is parallel to the length direction of the sliding groove, both ends of the adjusting screw extend outward to the outside of the support seat, and both ends of the adjusting screw are connected to knobs.

[0008] Optionally, the bearing housing includes a lower housing and an upper housing detachably connected to the lower housing; the bottom of the upper housing is provided with a first arc groove, the top of the lower housing is provided with a second arc groove, and the lower housing is slidably connected to the sliding groove; the first arc groove and the second arc groove together form a bearing hole.

[0009] Optionally, the upper body has an elongated hole in the vertical direction, into which a fixing screw is inserted, and the top of the lower body has a positioning hole for inserting the fixing screw.

[0010] Optionally, the top of the support base is provided with scale markings along the length of the slide groove.

[0011] Optionally, the unwinding roller is an air-expanding roller.

[0012] The second aspect of this utility model also provides a rewinding machine, including a frame; and further including the above-mentioned unwinding and correction mechanism; at least two unwinding and correction mechanisms are provided on the frame; the axial direction of the unwinding roller is perpendicular to the length direction of the frame.

[0013] Optionally, the rewinding machine further includes a first support roller and a second support roller rotatably mounted on the frame, and a drive mechanism for driving the first support roller and the second support roller to rotate; the axial direction of the first support roller and the axial direction of the second support roller are both parallel to the axial direction of the unwinding roller, and a winding station groove is formed between the first support roller and the second support roller.

[0014] Optionally, two parallel limiting plates are vertically mounted above the winding station slot; the limiting plates have limiting surfaces perpendicular to the axial direction of the first support roller.

[0015] Optionally, the frame is provided with a vertical support rod, and an adjusting rod is provided horizontally through the support rod; the adjusting rod is connected to the limiting plate, and the length direction of the adjusting rod is parallel to the axial direction of the first support roller;

[0016] The upright is also fitted with a locking screw that abuts against the surface of the adjusting rod.

[0017] Optionally, the drive mechanism is fixedly mounted on the outside of the frame, and the output shaft of the drive mechanism is connected to the transmission mechanism. The transmission mechanism includes a drive wheel coaxially mounted with the output shaft of the drive mechanism, a driven wheel coaxially mounted with the first support roller, a first transmission belt wound around the drive wheel and the driven wheel, a first transmission wheel coaxially mounted with the first support roller, a second transmission wheel coaxially mounted with the second support roller, and a second transmission belt wound around the first transmission wheel and the second transmission wheel.

[0018] Beneficial effects:

[0019] The first aspect of this utility model provides an unwinding and correction mechanism. By setting a groove perpendicular to the axis of the unwinding roller on the support base, and using an adjusting screw and knob threaded to the bearing seat, the unwinding roller can be manually corrected, which greatly reduces the hardware cost. At the same time, the unwinding and correction mechanism provided by this utility model has a simple structure and is easy to operate. It is more suitable for the winding operation of small batches or specific types of PVC film, and improves economy and practicality while ensuring the correction function.

[0020] The second aspect of this utility model provides a rewinding machine. By setting the aforementioned unwinding and correction mechanism on the frame, it can fully utilize the advantages of simple structure, convenient operation, and low cost of the unwinding and correction mechanism to meet the needs of small-batch or specific types of PVC film winding operations. At least two unwinding and correction mechanisms are provided, which can be used to unwind PVC film and copy paper respectively. Manual correction of the unwinding roller is achieved by adjusting screws and knobs, ensuring that the edges of both are aligned during the winding process, preventing adhesion and protecting the film surface smoothness. At the same time, the unwinding roller's axial direction is perpendicular to the length direction of the frame, adapting to the overall layout of the rewinding machine, making the winding operation smoother. While ensuring winding quality, it significantly improves the economy and practicality of the equipment, especially suitable for cost-sensitive scenarios that do not require large-scale film winding and packaging. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the unwinding and correction mechanism provided by this utility model.

[0023] Figure 2 yes Figure 1 Enlarged view of section A.

[0024] Figure 3 This is a schematic diagram of the bearing housing.

[0025] Figure 4 This is a schematic diagram of the structure of the support base.

[0026] Figure 5 This is a schematic diagram of the structure of the rewinding machine provided by this utility model. Figure 1 .

[0027] Figure 6 yes Figure 5 Enlarged view of section B.

[0028] Figure 7 This is a schematic diagram of the structure of the rewinding machine provided by this utility model. Figure 2 .

[0029] Figure 8 yes Figure 7 Enlarged view of section C.

[0030] Figure 9 This is a schematic diagram of the structure of the rewinding machine provided by this utility model. Figure 3 .

[0031] Explanation of icon numbers:

[0032] 1-Unwinding roller;

[0033] 2-Bearing housing; 201-Upper housing; 2011-First arc groove; 2012-Elongated hole; 202-Lower housing; 2021-Second arc groove; 2022-Positioning hole;

[0034] 3-Support base; 301-Slide groove; 302-Threaded hole;

[0035] 4-Adjusting screw; 5-Knob; 6-Fixing screw; 7-Scale markings; 8-Frame; 9-First support roller; 10-Second support roller; 11-Drive mechanism; 12-Rewinding station slot;

[0036] 13-Limit plate; 131-Limit surface;

[0037] 14-Upright pole; 15-Adjusting rod; 16-Locking screw;

[0038] 17-Transmission mechanism; 171-Driving pulley; 172-Driven pulley; 173-First transmission belt; 174-First transmission pulley; 175-Second transmission pulley; 176-Second transmission belt;

[0039] 18-Limit nut; 19-Magnetic powder brake; 20-First gear; 21-Second gear;

[0040] 22-Copy paper roll; 23-PVC film roll; 24-Rewind paper tube. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0044] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0045] Please see Figures 1 to 9 The first aspect of this utility model discloses an unwinding and correction mechanism, which can be installed on a rewinder and can be configured with one or more mechanisms according to the winding requirements of roll materials such as films. For example, when it is necessary to sandwich copy paper between layers of PVC film, two unwinding and correction mechanisms are required, one for unwinding the PVC film and the other for unwinding the copy paper.

[0046] Specifically, each of the unwinding and correction mechanisms includes an unwinding roller 1, a bearing seat 2, and a support seat 3. When a roll of copy paper 22 or a roll of PVC film 23 is mounted on the unwinding roller 1, rotating the unwinding roller 1 can release a single layer of copy paper or PVC film. To enable the unwinding roller 1 to rotate, bearing seats 2 are rotatably connected to both ends of the unwinding roller 1. Furthermore, the support seat 3 can be fixed on the frame 8 of the rewinding machine, and a groove 301 is provided on the support seat 3. The length direction of the groove 301 is perpendicular to the axial direction of the unwinding roller 1. The bearing seat 2 is slidably disposed in the groove 301, and an adjusting screw 4 threadedly connected to the bearing seat 2 is provided through the bearing seat 2. The axial direction of the adjusting screw 4 is parallel to the length direction of the groove 301, and both ends of the adjusting screw 4 extend outward to the outside of the support seat 3, and both ends of the adjusting screw 4 are connected to knobs 5.

[0047] This invention achieves manual correction of the unwinding roller 1 by setting a groove 301 perpendicular to the axis of the unwinding roller 1 on the support base 3 and using an adjusting screw 4 and a knob 5 threadedly connected to the bearing seat 2. When correction of the unwinding roller 1 is required, simply turn the knob 5 manually to drive the bearing seats 2 at both ends of the unwinding roller 1 to slide along the groove 301, thereby adjusting the position of the two ends of the unwinding roller 1 to achieve correction, which greatly reduces hardware costs. At the same time, the unwinding correction mechanism provided by this invention has a simple structure, is easy to operate, and is more suitable for the winding operation of small batches or specific types of PVC film, improving economy and practicality while ensuring the correction function.

[0048] like Figures 1 to 3 As shown, in an optional embodiment, the bearing housing 2 includes a lower housing 202 and an upper housing 201 detachably connected to the lower housing 202; the bottom of the upper housing 201 is provided with a first arc groove 2011, and the top of the lower housing 202 is provided with a second arc groove 2021, and the lower housing 202 is slidably connected to the sliding groove 301; the first arc groove 2011 and the second arc groove 2021 together form a bearing hole. When the connection between the upper housing 201 and the lower housing 202 is disassembled, the unwinding roller 1 can be removed from the second arc groove 2021. Therefore, the detachable design of the bearing housing 2 in this embodiment facilitates production personnel to replace the unwinding roller 1 with a new PVC film roll or copy paper roll 22.

[0049] It is understood that the adjusting screw 4 is provided through the lower seat 202, and the adjusting screw 4 is threadedly connected to the lower seat 202.

[0050] Understandably, having knobs 5 connected to both ends of the adjusting screw 4 significantly improves the convenience and flexibility of the correction operation compared to having knobs 5 on only one end. In actual winding operations, operators can adjust the position of the unwinding roller 1 by rotating knobs 5 from either end of the support base 3, depending on the surrounding space and their own position, without being limited to a single operating direction.

[0051] It should be noted that the PVC film roll is a pre-produced and wound roll on the production line. When it is necessary to sandwich copy paper between the PVC film layers, the PVC film roll will be placed on the unwinding roller 1 and then released again.

[0052] like Figure 3As shown, in an optional embodiment, the upper seat 201 has an elongated hole 2012 in the vertical direction, into which a fixing screw 6 is inserted. The top of the lower seat 202 has a positioning hole 2022 for inserting the fixing screw 6. The inner walls of both the elongated hole 2012 and the positioning hole 2022 are provided with internal threads that mate with the fixing screw 6. In this embodiment, the elongated hole 2012 provides a clear passage for the fixing screw 6, ensuring that it can be accurately aligned and inserted into the positioning hole 2022 of the lower seat 202. Simultaneously, the internal thread connection securely locks the upper seat 201 and the lower seat 202 together, ensuring the stability of the overall structure of the bearing housing 2 and preventing loosening when the unwinding roller 1 rotates. Moreover, when replacing the copy paper roll 22 and the PVC film roll 23, it facilitates quick disassembly and assembly of the bearing housing 2 to replace the unwinding roller 1 and the roll material, improving operational efficiency.

[0053] like Figure 4 As shown, in an optional embodiment, threaded holes 302 are provided on both sides of the support base 3 along its length. The adjusting screw 4 is threadedly connected to the inner wall of the threaded hole 302, ensuring a reliable connection between the adjusting screw 4 and the support base 3. This prevents the bearing seat 2 from moving when the PVC film is wound up and copy paper is sandwiched between the layers of the wound PVC film, thereby ensuring that the position of the unwinding roller 1 remains stable after correction and ensuring high alignment between the layers of the wound material.

[0054] like Figure 1 As shown, in an optional embodiment, limiting nuts 18 are sleeved on both sides of the adjusting screw 4, and the limiting nuts 18 press against the outer wall surface of the support base 3 respectively. In this embodiment, the pressing action of the limiting nuts 18 can firmly lock the position of the adjusting screw 4 on the support base 3, effectively preventing the adjusting screw 4 from axially moving due to equipment vibration or changes in roll tension during the winding operation, and further ensuring that the position of the unwinding roller 1 remains stable after correction.

[0055] like Figure 1 , Figure 2 as well as Figure 4As shown, in an optional embodiment, the top of the support base 3 is provided with a scale mark 7 along the length direction of the slide groove 301. The scale mark 7 on the top of the support base 3 along the length direction of the slide groove 301 provides an intuitive quantitative reference for the correction adjustment of the unwinding roller 1. When the operator rotates the adjusting screw 4 by turning the knob 5 to drive the bearing seat 2 to slide along the slide groove 301, the operator can accurately control the moving distance of the bearing seat 2 according to the scale mark 7, thereby achieving precise control of the correction amount of the unwinding roller 1, effectively avoiding the problem of excessive or insufficient deviation that may occur when adjusting based solely on experience. This not only improves the efficiency and accuracy of the correction operation, ensuring better alignment of the edges of the PVC film and the copy paper during winding, but also ensures the consistency of winding quality by recording and reproducing the adjustment position through the scale when changing different specifications of roll material or repeating operations. It is especially suitable for the precision requirements of small-batch or specific types of PVC film winding operations, further enhancing the practicality of the correction adjustment mechanism.

[0056] In an optional embodiment, the unwinding roller 1 is an air-expanding roller. The air-expanding roller expands by inflating to tightly fit the inner wall of the copy paper roll 22 or PVC film roll 23 surrounding it, achieving rapid clamping and secure fixing of the roll material. This prevents axial slippage or radial swaying of the roll material during unwinding, ensuring unwinding stability. Simultaneously, after unwinding, deflating the roller allows for easy removal of the empty roll, making replacement with a new roll convenient and efficient.

[0057] like Figures 5 to 9 As shown, the second aspect of this utility model also provides a rewinding machine, including a frame 8; and also including the above-mentioned unwinding and correction mechanism; at least two unwinding and correction mechanisms are provided on the frame 8; the axial direction of the unwinding roller 1 is perpendicular to the length direction of the frame 8.

[0058] This invention, by incorporating the aforementioned unwinding and alignment mechanism on the frame 8, fully leverages the advantages of its simple structure, convenient operation, and low cost to meet the needs of small-batch or specific-type PVC film winding operations. At least two unwinding and alignment mechanisms are provided, one for unwinding PVC film and the other for unwinding copy paper. Manual alignment of the unwinding roller 1 is achieved using the adjusting screw 4 and knob 5, ensuring edge alignment during winding, preventing adhesion, and protecting the film surface smoothness. Simultaneously, the unwinding roller 1's axial direction is perpendicular to the length of the frame 8, adapting to the overall layout of the rewinder, making the winding operation smoother. While ensuring winding quality, this significantly improves the equipment's economy and practicality, making it particularly suitable for cost-sensitive scenarios that do not require large-scale film winding and packaging.

[0059] like Figure 5 , Figure 7 as well as Figure 9As shown, in an optional embodiment, the rewinder further includes a first support roller 9 and a second support roller 10 rotatably mounted on the frame 8, and a drive mechanism 11 for driving the first support roller 9 and the second support roller 10 to rotate; the axial direction of the first support roller 9 and the axial direction of the second support roller 10 are both parallel to the axial direction of the unwind roller 1, and a winding station groove 12 is formed between the first support roller 9 and the second support roller 10. After the PVC film and copy paper are released by the unwind roller 1, they will pass around the guide roller and the tension roller, and then be pulled upward to the space between the first support roller 9 and the second support roller 10 and adhered to the winding paper tube 24. The winding paper tube 24 is located in the winding station groove 12 and is supported by the first support roller 9 and the second support roller 10. Therefore, when the drive mechanism 11 drives the first support roller 9 and the second support roller 10 to rotate in the same direction, it can drive the winding paper tube 24 to rotate to achieve the winding operation.

[0060] In an optional embodiment, two parallel limiting plates 13 are vertically mounted above the winding station slot 12; the limiting plates 13 have limiting surfaces 131 perpendicular to the axial direction of the first support roller 9. The limiting plates 13 can provide precise lateral limiting for the PVC film and copy paper during the winding process. When the PVC film and copy paper are wound interlayer within the winding station slot 12, the limiting surfaces 131 of the two limiting plates 13 can constrain the edges of the roll from both sides, effectively preventing the roll from shifting laterally due to tension changes, equipment vibration, or other factors during the winding process, ensuring that the edges of the wound roll are neatly aligned, and further improving the winding quality.

[0061] In optional embodiments, such as Figure 7 and Figure 8 As shown, a vertical support rod 14 is provided on the frame 8, and an adjusting rod 15 is horizontally inserted through the support rod 14. The adjusting rod 15 is connected to the limiting plate 13, and the length direction of the adjusting rod 15 is parallel to the axial direction of the first support roller 9. A locking screw 16 is also inserted into the support rod 14 to abut against the surface of the adjusting rod 15. The position of the limiting plate 13 can be flexibly adjusted by moving the adjusting rod 15. Specifically, the operator can move the limiting plate 13 to a suitable position along the length direction of the adjusting rod 15 according to the width of the PVC film and the copy paper, and then fix it with the locking screw 16, so that the limiting surface 131 of the limiting plate 13 accurately fits the edge of the roll material, adapting to the winding requirements of different specifications of roll materials.

[0062] like Figure 7 and Figure 8As shown, in an optional embodiment, the drive mechanism 11 is fixedly mounted on the outside of the frame 8, and the output shaft of the drive mechanism 11 is connected to the transmission mechanism 17. The transmission mechanism 17 includes a drive wheel 171 coaxially mounted with the output shaft of the drive mechanism 11, a driven wheel 172 coaxially mounted with the first support roller 9, a first transmission belt 173 wound around the drive wheel 171 and the driven wheel 172, a first transmission wheel 174 coaxially mounted with the first support roller 9, a second transmission wheel 175 coaxially mounted with the second support roller 10, and a second transmission belt 176 wound around the first transmission wheel 174 and the second transmission wheel 175. The drive mechanism 11 can be a drive motor; the transmission mechanism 17 drives the first support roller 9 to rotate through the drive wheel 171, the driven wheel 172 and the first transmission belt 173, and then achieves synchronous transmission of the first support roller 9 and the second support roller 10 by means of the first transmission wheel 174, the second transmission wheel 175 and the second transmission belt 176, thereby ensuring that the two support rollers rotate in the same direction and match their speeds, so as to stabilize the winding action in the winding station slot 12.

[0063] like Figure 5 and Figure 6 As shown, one end of the unwinding roller 1 is connected to a second gear 21; the outer side of the frame 8 has a magnetic powder brake 19, which is connected to a first gear 20. The first gear 20 can mesh with the second gear 21. When the first gear 20 meshes with the second gear 21, the magnetic powder brake 19 can adjust the braking torque according to the winding requirements, thereby stabilizing the speed and tension of the winding roller, avoiding problems such as stretching deformation, wrinkles or loosening of PVC film and copy paper due to tension fluctuations during the winding process, and ensuring that the wound material is tight and flat after winding.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An unwinding and correction mechanism, comprising an unwinding roller (1); bearing seats (2) are rotatably connected to both ends of the unwinding roller (1); characterized in that, It also includes a support base (3); the support base (3) has a groove (301) on it; the length direction of the groove (301) is perpendicular to the axial direction of the unwinding roller (1); the bearing seat (2) is slidably disposed in the groove (301), and an adjusting screw (4) threadedly connected to the bearing seat (2) is provided through the bearing seat (2); the axial direction of the adjusting screw (4) is parallel to the length direction of the groove (301), both ends of the adjusting screw (4) extend outward to the outside of the support base (3), and both ends of the adjusting screw (4) are connected to a knob (5).

2. The unwinding and correction mechanism according to claim 1, characterized in that, The bearing housing (2) includes a lower housing (202) and an upper housing (201) detachably connected to the lower housing (202); the bottom of the upper housing (201) is provided with a first arc groove (2011), the top of the lower housing (202) is provided with a second arc groove (2021), and the lower housing (202) is slidably connected to the sliding groove (301); the first arc groove (2011) and the second arc groove (2021) together form a bearing hole.

3. The unwinding and correction mechanism according to claim 2, characterized in that, The upper body (201) has an elongated hole (2012) in the vertical direction, into which a fixing screw (6) is inserted. The lower body (202) has a positioning hole (2022) at the top for inserting the fixing screw (6).

4. The unwinding and correction mechanism according to claim 1, characterized in that, The top of the support base (3) is provided with scale markings (7) along the length of the slide groove (301).

5. The unwinding and correction mechanism according to claim 1, characterized in that, The unwinding roller (1) is an air-expanding roller.

6. A rewinding machine, comprising a frame (8); characterized in that, It also includes the unwinding and correction mechanism as described in any one of claims 1-5; at least two unwinding and correction mechanisms are provided on the frame (8); the axial direction of the unwinding roller (1) is perpendicular to the length direction of the frame (8).

7. The rewinder according to claim 6, characterized in that, It also includes a first support roller (9) and a second support roller (10) rotatably mounted on the frame (8), and a drive mechanism (11) for driving the first support roller (9) and the second support roller (10) to rotate; the axial direction of the first support roller (9) and the axial direction of the second support roller (10) are both parallel to the axial direction of the unwinding roller (1), and a winding station groove (12) is formed between the first support roller (9) and the second support roller (10).

8. The rewinder according to claim 7, characterized in that, Two parallel limiting plates (13) are vertically mounted above the winding station slot (12); the limiting plates (13) have a limiting surface (131) perpendicular to the axis of the first support roller (9).

9. The rewinding machine according to claim 8, characterized in that, The frame (8) is vertically provided with a support rod (14), and an adjusting rod (15) is horizontally passed through the support rod (14); the adjusting rod (15) is connected to the limiting plate (13), and the length direction of the adjusting rod (15) is parallel to the axial direction of the first support roller (9); A locking screw (16) that abuts against the surface of the adjusting rod (15) is also inserted on the upright (14).

10. The rewinding machine according to claim 7, characterized in that, The drive mechanism (11) is fixedly mounted on the outside of the frame (8), and the output shaft of the drive mechanism (11) is connected to the transmission mechanism (17). The transmission mechanism (17) includes a drive wheel (171) coaxially mounted with the output shaft of the drive mechanism (11), a driven wheel (172) coaxially mounted with the first support roller (9), a first transmission belt (173) simultaneously wound around the drive wheel (171) and the driven wheel (172), a first transmission wheel (174) coaxially mounted with the first support roller (9), a second transmission wheel (175) coaxially mounted with the second support roller (10), and a second transmission belt (176) simultaneously wound around the first transmission wheel (174) and the second transmission wheel (175).

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