Film rewinding device

Abstract

The utility model discloses a film rewinding device which comprises a machine frame, two sets of rotating mechanisms and two sets of positioning mechanisms. The two rotating mechanisms are used for unwinding and winding a film correspondingly, each rotating mechanism comprises a rotating roller and a motor, a clamping block is arranged at one end of each rotating roller in a protruding mode, the other end of each rotating roller is rotationally connected to the rack, and the motors are used for driving the rotating rollers to rotate; the positioning mechanisms are in one-to-one correspondence with the rotating mechanisms, each positioning mechanism comprises a rotating block, a sliding block and a spring, the rotating blocks are rotationally connected to the sliding blocks, the sliding blocks are slidably connected to the rack, the two ends of the springs abut against the rack and the sliding blocks correspondingly, and the springs are used for driving the sliding blocks to move in the direction close to the rotating rollers in the axial direction of the rotating rollers; and the clamping blocks can be clamped in the clamping grooves, so that the rotating rollers are fixedly connected with the rotating blocks. The rotating roller can be quickly positioned and mounted on the rack through the positioning mechanism, so that the rotating roller can be conveniently disassembled and assembled, the loading and unloading efficiency is improved, and the film rewinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production equipment, in particular to a film rewinding device. Background Art

[0002] The film after blow molding is rolled up for easy transportation and storage, and the edges of the rolled film rolls will be uneven, so a film rewinding device is usually used to rewind the film. The film rewinding device is mainly composed of a frame and two rollers, and the two rollers are rotatably connected to the frame. One of the rollers is used to rewind the film released from the other roller. The rollers need to be disassembled and assembled to the frame during loading and unloading. The existing film rewinding device is not convenient for disassembling and assembling the rollers during loading and unloading, resulting in low loading and unloading efficiency, thereby affecting the film rewinding efficiency. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the utility model provides a film rewinding device, which can quickly position and install a roller on a frame through a positioning mechanism, and facilitate the disassembly and assembly of the roller to improve the loading and unloading efficiency, thereby improving the film rewinding efficiency.

[0004] According to an embodiment of the utility model, a film rewinding device is provided, including a frame, two groups of rotating mechanisms and two groups of positioning mechanisms; the two groups of rotating mechanisms are respectively used for unwinding film and winding film, the rotating mechanism includes a roller and a motor, one end of the roller is protrudingly provided with a clamping block, the other end of the roller is rotatably connected to the frame, and the motor is used to drive the roller to rotate; the positioning mechanism corresponds to the rotating mechanism one by one, and the positioning mechanism includes a rotating block, a slider and a spring, the rotating block is rotatably connected to the slider, the slider is slidably connected to the frame, the two ends of the spring respectively abut the frame and the slider, the spring is used to drive the slider to move along the axial direction of the roller toward the direction close to the roller, the rotating block is provided with a clamping slot, and the clamping block can be clamped in the clamping slot to fix the roller and the rotating block.

[0005] A film rewinding device according to an embodiment of the utility model has at least the following beneficial effects: when loading, one end of the roller is connected to the frame by rotation, and the slider is moved in the direction away from the roller along the axial direction of the roller, and the slider drives the rotating block to move synchronously. Since the two ends of the spring abut the frame and the slider respectively, the spring is compressed and deformed when the slider moves, and then the block at the other end of the roller is aligned with the slot of the rotating block, and then the slider is released. The slider moves in the direction close to the roller along the axial direction of the roller through the elastic restoring force of the spring, so that the block is engaged with the slot, thereby fixing the roller and the rotating block. The roller can be quickly positioned and installed on the frame, and the elastic force of the spring can drive the rotating block to stably abut against the block, thereby reducing the risk of the block loosening from the slot to improve the stability of the connection between the roller and the rotating block. The motor drives the roller to rotate so that one of the rollers can rewind the film released from the other roller, thereby realizing the rewinding of the film. When unloading, the slider is moved along the axial direction of the roller away from the roller, and the slider drives the rotating block to move synchronously, so that the block is disengaged from the slot, and the roller can be removed from the frame, which is convenient for the disassembly and assembly of the roller, thereby improving the loading and unloading efficiency.

[0006] According to some embodiments of the utility model, a plurality of insertion holes are provided at one end of the card block away from the rotating roller, and the plurality of insertion holes are evenly arranged at circumferential intervals along the card block, and a plurality of first positioning cylinders are protruding from the bottom wall of the card slot, and the first positioning cylinders correspond one-to-one to the insertion holes, and the first positioning cylinders can be inserted into the insertion holes.

[0007] According to some embodiments of the utility model, a second positioning cylinder is protruding from the center of the bottom wall of the slot, the second positioning cylinder protrudes from the end face of the rotating block, a positioning hole is opened at the center of the end of the block, and the second positioning cylinder can be inserted into the positioning hole.

[0008] According to some embodiments of the present invention, a spherical guide portion is provided at the end of the second positioning cylinder.

[0009] According to some embodiments of the utility model, the positioning mechanism also includes a limit plate and a limit block, the side of the slider away from the rotating block is fixedly connected to a screw rod, the limit block is threadedly connected to the screw rod, the limit block is circumferentially provided with an annular limit groove, the limit plate is rotatably connected to the frame, the limit plate can extend into the annular limit groove and abut against the side wall of the annular limit groove to limit the axial movement of the screw rod.

[0010] According to some embodiments of the present invention, a pull ring is provided at the end of the screw.

[0011] According to some embodiments of the utility model, the frame is provided with a slide groove, the slide groove is arranged along the axial direction of the roller, and the sliding block is slidably connected to the slide groove.

[0012] According to some embodiments of the utility model, the rotating mechanism also includes a fixed seat and a sliding seat, the fixed seat is fixedly arranged on the frame, the sliding seat is slidably connected to the frame, the sliding seat can slide in a direction close to or away from the fixed seat, one end of the roller is rotatably connected to the fixed seat, and the sliding block is slidably connected to the sliding seat.

[0013] According to some embodiments of the utility model, the rotating block is rotatably connected to the sliding block via a rotating shaft, and the rotating shaft fixing sleeve is provided with an annular rubber pad, which can abut against the sliding seat to limit the rotating shaft from moving axially in a direction close to the sliding seat.

[0014] According to some embodiments of the utility model, the frame is provided with a guide groove, the guide groove is arranged along the axial direction of the roller, and the slide seat is slidably connected to the guide groove.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a top view of a film rewinding device according to an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 It is a right side view of the film rewinding device of the embodiment of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of a rotating roller of a film rewinding device according to an embodiment of the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of the positioning mechanism of the film rewinding device of the embodiment of the utility model;

[0022] Figure 6 It is a partial cross-sectional view of the positioning mechanism of the film rewinding device of the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] Frame 100, slide slot 110, guide slot 120;

[0025] Rotating mechanism 200, roller 210, block 211, plug hole 212, positioning hole 213, motor 220, fixing seat 230, sliding seat 240;

[0026] Positioning mechanism 300, rotating block 310, slot 311, first positioning cylinder 312, second positioning cylinder 313, spherical guide part 314, slider 320, spring 330, limit plate 340, limit block 350, screw 360, pull ring 361, annular limit groove 370, rotating shaft 380, annular rubber pad 390. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] It is understandable that, referring to Figures 1 to 6The utility model is a film rewinding device, comprising a frame 100, two sets of rotating mechanisms 200 and two sets of positioning mechanisms 300; the two sets of rotating mechanisms 200 are used for unwinding and winding the film respectively, the rotating mechanism 200 comprises a roller 210 and a motor 220, one end of the roller 210 is protrudingly provided with a block 211, the other end of the roller 210 is rotatably connected to the frame 100, and the motor 220 is used to drive the roller 210 to rotate; the positioning mechanism 300 corresponds to the rotating mechanism 200 one by one, and the positioning mechanism 300 includes a rotating block 310, a slider 320 and a spring 330. The rotating block 310 is rotatably connected to the slider 320. The slider 320 is slidably connected to the frame 100. The two ends of the spring 330 respectively abut the frame 100 and the slider 320. The spring 330 is used to drive the slider 320 to move along the axial direction of the roller 210 toward the direction close to the roller 210. The rotating block 310 is provided with a slot 311. The slot 311 can be engaged with the slot 311 to fix the roller 210 and the rotating block 310.

[0032] When loading, one end of the roller 210 is rotatably connected to the frame 100, and the slider 320 is moved along the axial direction of the roller 210 in a direction away from the roller 210, and the slider 320 drives the rotating block 310 to move synchronously. Since the two ends of the spring 330 respectively abut the frame 100 and the slider 320, the spring 330 is compressed and deformed when the slider 320 moves, and then the block 211 at the other end of the roller 210 is aligned with the slot 311 of the rotating block 310, and then the slider 320 is released. The slider 320 is moved along the axial direction of the roller 210 in a direction close to the roller 210 through the elastic restoring force of the spring 330, so that the block 211 is engaged with the slot 311, so that the roller 210 and the rotating block 310 are fixedly connected, and the roller 210 can be quickly fixed. The film is rewound by the roller 210 and the film is reeled in by the roller 210. When the film is reeled in, the roller 210 is reeled in and the film is reeled in ...

[0033] It should be noted that the rotating block 310 can move synchronously with the slider 320. Since the rotating block 310 is rotationally connected to the slider 320, and the slider 320 is slidingly connected to the frame 100, when the rotating block 310 rotates relative to the slider 320, the slider 320 remains stationary relative to the frame 100.

[0034] The motor 220 may be a servo motor or a stepping motor, etc., as long as it can drive the roller 210 to rotate, and is not limited here.

[0035] It is understandable that, referring to Figures 4 to 6 , a plurality of insertion holes 212 are provided at one end of the block 211 away from the roller 210, and the plurality of insertion holes 212 are evenly arranged at intervals along the circumference of the block 211, and a plurality of first positioning cylinders 312 are protruding from the bottom wall of the slot 311, and the first positioning cylinders 312 correspond to the insertion holes 212 one by one, and the first positioning cylinders 312 can be inserted into the insertion holes 212. Since the plurality of insertion holes 212 are evenly arranged at intervals along the circumference of the block 211, and the first positioning cylinders 312 correspond to the insertion holes 212 one by one, the block 211 can be engaged with the slot 311 by inserting the first positioning cylinders 312 into the insertion holes 212, so as to locate the circumferential and radial relative positions between the roller 210 and the rotating block 310, so that the roller 210 and the rotating block 310 are fixedly connected, and the connection firmness between the roller 210 and the rotating block 310 can be improved, thereby improving the stability of the rotation of the roller 210.

[0036] Specifically, refer to Figures 4 to 6 A second positioning cylinder 313 is protruding from the center of the bottom wall of the slot 311 , and the second positioning cylinder 313 protrudes from the end surface of the rotating block 310 . A positioning hole 213 is opened at the center of the end of the block 211 , and the second positioning cylinder 313 can be inserted into the positioning hole 213 . Since a second positioning circle is protruding from the center position of the bottom wall of the slot 311, the second positioning cylinder 313 protrudes from the end face of the rotating block 310, so that when the rotating block 310 abuts against the block 211, the block 211 first contacts the second positioning cylinder 313, and when the block 211 is aligned and extends into the slot 311, the second positioning cylinder 313 is first inserted into the positioning hole 213, which can pre-position the radial relative position between the roller 210 and the rotating block 310 until the first positioning cylinder 312 abuts against the end face of the block 211, and the block 211 rotates around the second positioning cylinder 313, which can facilitate the first positioning cylinder 312 to align and insert into the insertion hole 212, so as to position the circumferential relative position between the roller 210 and the rotating block 310, thereby improving the clamping accuracy between the block 211 and the slot 311.

[0037] It should be noted that, along the axial direction of the rotating block 310 , the length of the second positioning cylinder 313 is greater than the length of the first positioning cylinder 312 , so that the second positioning cylinder 313 can be inserted into the positioning hole 213 first to achieve pre-positioning of the roller 210 .

[0038] The diameter of the second positioning cylinder 313 may be greater than the diameter of the first positioning cylinder 312 to prevent the second positioning cylinder 313 from being inserted into the insertion hole 212 , thereby improving the positioning accuracy.

[0039] Specifically, refer to Figures 4 to 6 The end of the second positioning cylinder 313 is provided with a spherical guide portion 314. The spherical surface of the spherical guide portion 314 can guide the second positioning cylinder 313 to gradually align and slide into the positioning hole 213, so as to improve the positioning accuracy and reduce the collision wear between the second positioning cylinder 313 and the block 211.

[0040] It is understandable that, referring to Figure 2 , Figure 3 and Figure 6 The positioning mechanism 300 also includes a limit plate 340 and a limit block 350. A screw 360 is fixedly connected to the side of the slider 320 away from the rotating block 310. The limit block 350 is threadedly connected to the screw 360. The limit block 350 is circumferentially provided with an annular limit groove 370. The limit plate 340 is rotatably connected to the frame 100. The limit plate 340 can extend into the annular limit groove 370 and abut against the side wall of the annular limit groove 370 to limit the axial movement of the screw 360. When the clamping block 211 is clamped in the clamping groove 311 to fix the roller 210 and the rotating block 310 in connection, the limiting block 350 is screwed to move the limiting block 350 along the axial direction of the screw rod 360 to a position abutting the frame 100, and then the limiting plate 340 is rotated to make the limiting plate 340 extend into the annular limiting groove 370 and abut the side wall of the annular limiting groove 370 to limit the axial movement of the screw rod 360, thereby limiting the axial movement of the slider 320 and the rotating block 310, thereby reducing the axial shaking of the roller 210 during rotation to improve the rotation stability of the roller 210.

[0041] Specifically, refer to Figure 1 and Figure 6 The end of the screw rod 360 is provided with a pull ring 361. By providing the pull ring 361 at the end of the screw rod 360, it is convenient for the operator to apply force to pull the screw rod 360 to move the slider 320, thereby improving the convenience of use.

[0042] It is understandable that, referring to Figure 6 The frame 100 is provided with a slide groove 110, which is arranged along the axial direction of the roller 210, and the slider 320 is slidably connected to the slide groove 110. The slide groove 110 guides the slider 320 to slide along the axial direction of the roller 210, which can improve the sliding stability of the slider 320, thereby reducing the position deviation of the rotating block 310 during the movement process, so as to improve the accuracy of the clamping block 211 aligning and clamping with the clamping groove 311.

[0043] It is understandable that, referring to Figure 1 and Figure 2The rotating mechanism 200 further includes a fixed seat 230 and a slide 240. The fixed seat 230 is fixedly arranged on the frame 100, and the slide 240 is slidably connected to the frame 100. The slide 240 can slide in a direction close to or away from the fixed seat 230. One end of the roller 210 is rotatably connected to the fixed seat 230, and the slider 320 is slidably connected to the slide 240. By sliding the slide 240 in a direction close to or away from the fixed seat 230, the distance between the slide 240 and the fixed seat 230 can be adjusted, so that the installation and positioning of the roller 210 with different lengths can be adapted, thereby adapting to the rewinding processing of films with different widths, and improving the applicability of the film rewinding device.

[0044] It should be noted that after the slide seat 240 is adjusted to a preset position, the position of the slide seat 240 can be positioned by fasteners such as bolts or pins.

[0045] Specifically, refer to Figure 5 The rotating block 310 is rotatably connected to the slider 320 via the rotating shaft 380. The rotating shaft 380 is fixedly sleeved with an annular rubber pad 390. The annular rubber pad 390 can abut against the slide seat 240 to limit the rotating shaft 380 from moving axially toward the slide seat 240. The annular rubber pad 390 abuts against the slide seat 240 to limit the rotating shaft 380 from moving axially toward the slide seat 240, thereby reducing the possibility of collision and damage between the rotating block 310 and the slide seat 240, thereby extending the service life of the rotating block 310.

[0046] Specifically, refer to Figure 1 and Figure 2 The frame 100 is provided with a guide groove 120, which is arranged along the axial direction of the roller 210, and the slide 240 is slidably connected to the guide groove 120. The guide groove 120 guides the slide 240 to move along the axial direction of the roller 210, which can improve the stability of the movement of the slide 240 and reduce the position deviation of the slide 240 during the movement process.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A film rewinding device, characterized in that: include: frame; Two sets of rotating mechanisms, the two sets of rotating mechanisms are used for unwinding the film and winding the film respectively, the rotating mechanisms include rollers and motors, one end of the rollers is protrudingly provided with a block, the other end of the rollers is rotatably connected to the frame, and the motor is used to drive the rollers to rotate; Two groups of positioning mechanisms, the positioning mechanisms correspond one to one with the rotating mechanisms, the positioning mechanisms include a rotating block, a slider and a spring, the rotating block is rotatably connected to the slider, the slider is slidably connected to the frame, the two ends of the spring respectively abut against the frame and the slider, the spring is used to drive the slider to move along the axial direction of the roller toward the direction close to the roller, the rotating block is provided with a slot, the slot can be engaged with the slot, so that the roller and the rotating block are fixedly connected.

2. The film rewinding device according to claim 1, characterized in that: A plurality of insertion holes are provided at one end of the card block away from the rotating roller, and the plurality of insertion holes are evenly arranged at intervals along the circumference of the card block. A plurality of first positioning cylinders are protruding from the bottom wall of the card slot, and the first positioning cylinders correspond to the insertion holes one by one, and the first positioning cylinders can be inserted into the insertion holes.

3. The film rewinding device according to claim 2, characterized in that: A second positioning cylinder is protruding from the center of the bottom wall of the slot, and the second positioning cylinder protrudes from the end surface of the rotating block. A positioning hole is opened at the center of the end of the block, and the second positioning cylinder can be inserted into the positioning hole.

4. The film rewinding device according to claim 3, characterized in that: A spherical guide portion is provided at the end of the second positioning cylinder.

5. The film rewinding device according to claim 1, characterized in that: The positioning mechanism also includes a limit plate and a limit block. A screw is fixedly connected to the side of the slider away from the rotating block. The limit block is threadedly connected to the screw. An annular limit groove is circumferentially provided on the limit block. The limit plate is rotatably connected to the frame. The limit plate can extend into the annular limit groove and abut against the side wall of the annular limit groove to limit the axial movement of the screw.

6. The film rewinding device according to claim 5, characterized in that: A pull ring is arranged at the end of the screw.

7. The film rewinding device according to claim 1, characterized in that: The frame is provided with a slide groove, the slide groove is arranged along the axial direction of the roller, and the sliding block is slidably connected to the slide groove.

8. The film rewinding device according to claim 1, characterized in that: The rotating mechanism also includes a fixed seat and a sliding seat, wherein the fixed seat is fixedly arranged on the frame, the sliding seat is slidably connected to the frame, and the sliding seat can slide toward or away from the fixed seat, one end of the roller is rotatably connected to the fixed seat, and the slider is slidably connected to the sliding seat.

9. The film rewinding device according to claim 8, characterized in that: The rotating block is rotatably connected to the sliding block via a rotating shaft, and the rotating shaft fixing sleeve is provided with an annular rubber pad, which can abut against the sliding seat to limit the rotating shaft from moving axially in a direction close to the sliding seat.

10. The film rewinding device according to claim 8, characterized in that: The frame is provided with a guide groove, the guide groove is arranged along the axial direction of the roller, and the slide seat is slidably connected to the guide groove.

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