Self-weighted roll-up film winding machine

Abstract

The present application relates to self-weight film winding technology, particularly to a self-weight winding film winding machine, which comprises a frame, and a winding station is arranged on the frame, wherein the winding station comprises a front winding roller and a rear winding roller, the front winding roller or the rear winding roller rotates, a material shaft is arranged between the front winding roller and the rear winding roller, the material shaft is hollow, a plurality of balls are arranged in the material shaft, the diameter of the balls is smaller than the diameter of the material shaft, and the material is quickly and conveniently discharged by replacing the action of pulling away the roller with pouring the balls.

Description

Technical Field

[0001] This invention relates to gravity-based film winding technology, and particularly to a gravity-based film winding machine. Background Technology

[0002] Existing film winding machines use a material shaft mounted on a roller for film winding. After unloading, the roller needs to be pulled out, which is inconvenient due to the roller being too long. Therefore, we considered abandoning the winding scheme of mounting the material shaft on the roller and instead placing the material shaft between two rollers, which would drive the material shaft to wind the film. However, the material shaft is too light, and it will bounce during the winding process. Summary of the Invention

[0003] In view of the technical problems existing in the background art, the technical problem solved by the present invention is to provide a self-weight winding film machine that places ball bearings inside the material shaft and pours the ball bearings out when discharging the material, without having to sleeve the material shaft on the roller shaft.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This self-weight winding film machine includes a frame, on which a winding station is provided. The winding station includes a front winding roller and a rear winding roller. The front winding roller or the rear winding roller rotates, and a material shaft is placed between the front winding roller and the rear winding roller. The material shaft is hollow, and a plurality of ball bearings are placed inside the material shaft. The diameter of the ball bearings is smaller than the diameter of the material shaft. The ball bearings inside the material shaft ensure its own weight. The material shaft relies on its own weight to reliably fit with the front winding roller and the rear winding roller. The material shaft is wound up under the drive of the front winding roller or the rear winding roller, realizing self-weight winding.

[0005] Preferably, the frame is further provided with a pre-winding station, which is located on one side of the winding station. The pre-winding station includes a pre-winding front roller and a pre-winding rear roller. The pre-winding front roller or the pre-winding rear roller rotates, and a material shaft is placed between the pre-winding front roller and the pre-winding rear roller. The material shaft is hollow, and a number of ball bearings are placed inside the material shaft. The diameter of the ball bearings is smaller than the diameter of the material shaft. After the film roll is wound up at the winding station, the material head can be connected to the material shaft at the pre-winding station to ensure the continuity of winding.

[0006] Preferably, the film winding machine further includes a discharge tray and a front roller rotating plate. The discharge tray is located on one side of the winding rear roller. One end of the discharge tray has a ball outlet, and the other end of the discharge tray has a movable lifting part below it. The front roller rotating plate is hinged to the frame. The winding front roller is mounted on the front roller rotating plate. The rotation of the front roller rotating plate drives the winding front roller to lift up, causing the wound film roll to leave the winding station and fall onto the discharge tray. The lifting part moves to lift one end of the discharge tray, causing the film roll on it to tilt. The balls inside the material roller slide out due to gravity and fall into the ball outlet, completing the discharge.

[0007] Preferably, the frame is further provided with a ball filling station, which includes a material bearing support component, a ball filling channel, a ball filling hopper, and a ball filling part. The material bearing support component positions the material shaft. The ball filling channel is circular, with a ball inlet above it. The ball filling hopper is located above the ball inlet. The ball filling part is cylindrical, and it pushes the balls in the ball filling channel into the material shaft supported by the material bearing support component. The circular design of the ball filling channel is adapted to the ball structure, enabling the balls to move quickly and be positioned. Combined with the positioning of the material shaft by the material bearing support component, the ball filling is fast and stable.

[0008] Preferably, the frame is further provided with a material shaft unloading mechanism, which includes a hopper, a material shaft support plate, an unloading channel, and a pushing part. The hopper includes a hopper fixed plate and a hopper movable plate, which are inclined relative to each other to form an unloading cavity that is wider at the top and narrower at the bottom. The lower ends of the hopper fixed plate and the lower ends of the hopper movable plate form a material shaft outlet. The lower ends of the hopper movable plate and the lower ends of the hopper fixed plate can move relative to each other. The unloading channel is located above the material shaft support plate, and the material shaft outlet is located above the unloading channel. The unloading channel includes an unloading fixed plate and an unloading movable plate. The material discharge movable plate is hinged to the frame. The distance between the material discharge fixed plate and the material discharge movable plate is only enough for a single material shaft to fall. When the material discharge movable plate is stationary, the distance between it and the material shaft support plate is less than the diameter of the material shaft. The pushing part pushes the material shaft on the material shaft support plate to push the material discharge movable plate open. The relative movement of the lower end of the material hopper movable plate and the lower end of the material hopper fixed plate changes the size of the material shaft outlet, controlling the falling of the material shaft. The distance between the material discharge fixed plate and the material discharge movable plate is only enough for a single material shaft to fall, so that the pushing part pushes only one material shaft at a time to push the material discharge movable plate open, allowing the single material shafts to fall sequentially, which is coordinated with the bead filling process to proceed in an orderly manner.

[0009] Preferably, two clamping plates are provided between the pre-winding roller and the post-winding roller. The two clamping plates can move relative to each other. Each clamping plate is provided with a movable top head that can extend into the material shaft. The top head extends into the material shaft to fix the material shaft from both sides and can prevent the balls inside the material shaft from falling out. During the winding process, the material shaft moves upward, and the movable top head adapts to the movement of the material shaft. The two clamping plates move relative to each other to adapt to material shafts of different lengths.

[0010] Preferably, the film winding machine further includes a lifting plate and a roll-changing rotating plate. The lifting plate is located between the winding mechanism and the pre-winding mechanism. The lifting plate moves up and down, and a bracket is provided on the lifting plate. A cutting blade is slidably mounted on the lifting plate. The roll-changing rotating plate is hinged to the frame. The pre-winding front roller and the pre-winding rear roller are mounted on the roll-changing rotating plate. During roll changing, the lifting plate rises, the bracket supports the strip, the cutting blade slides, and the cut strip falls onto the material shaft of the pre-winding mechanism for pre-winding. As the lifting plate descends, the film roll from the winding mechanism exits, and the roll-changing rotating plate rotates to lift the entire pre-winding mechanism, causing the pre-wound material shaft to fall between the pre-winding roller and the post-winding roller for winding. The roll-changing rotating plate then resets, and the bracket supports the material strip to increase its surface tension and ensure effective cutting. The design of the roll-changing rotating plate allows for seamless connection between pre-winding and winding, eliminating the need to consider the material exit from the pre-winding station or the material entry from the winding station. The material shaft enters from the pre-winding mechanism and exits from the winding mechanism, ensuring both the continuity of winding and avoiding structural complexity.

[0011] Preferably, the film winding machine further includes a movable transfer plate. The material bearing support component includes a front support plate and a rear support plate. The front support plate or the rear support plate is movable. The transfer plate positions the material shaft. The transfer plate moves between the material picking station and the material discharging station. At the material picking station, the transfer plate is located below the material bearing support component. The movement of the front support plate or the rear support plate causes the material shaft after bead filling to fall onto the transfer plate. After the transfer plate moves to the material discharging station, it releases the positioning of the material shaft, allowing the material shaft to enter the next process.

[0012] Preferably, the frame is further provided with a ball conveying mechanism, which includes several ball conveyor belts and several ball buckets. The ball buckets are used to connect two ball conveyor belts. One end of the ball conveying mechanism is located below the ball outlet, and the other end is located above the ball bucket. The ball conveyor belts have ball positioning parts that position the balls. The ball conveying mechanism collects the balls falling from the ball outlet and conveys them to the top of the ball bucket, realizing the recycling of the balls. The design of the ball buckets and ball conveyor belts enables the ball conveying mechanism to convey balls longitudinally and laterally. The ball positioning parts position the balls to prevent the balls from moving during the conveying process and affecting the conveying.

[0013] The beneficial effect of this invention is that by placing several ball bearings inside the material shaft, the material shaft can reliably adhere to the front and rear roller shafts by its own weight. This eliminates the need to sleeve the material shaft onto the roller shafts for film winding, as the tilting ball bearings replace the action of pulling the roller shafts away, resulting in fast and convenient material discharge. Therefore, this invention has substantial features and advancements compared to existing technologies. Attached Figure Description

[0014] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of the present invention.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the winding mechanism and the pre-winding mechanism in this invention.

[0017] Figure 3 This is a schematic diagram of the lifting plate in this invention.

[0018] Figure 4 This is a schematic diagram of the structure of the lifting part in this invention.

[0019] Figure 5 This is a schematic diagram of the bead-filling station in this invention.

[0020] Figure 6 This is a schematic diagram of the material feeding mechanism of the material shaft in this invention.

[0021] Figure 7 This is a schematic diagram of the transfer plate in the present invention.

[0022] Figure 8 This is a schematic diagram of the ball conveying mechanism in this invention.

[0023] In the diagram: 1. Frame; 2. Front winding roller; 3. Rear winding roller; 4. Front pre-winding roller; 5. Rear pre-winding roller; 6. Discharge support plate; 7. Ball bearing outlet; 8. Lifting section; 9. Front roller rotating plate; 10. Ball filling channel; 11. Ball filling hopper; 12. Ball filling section; 13. Hopper fixing plate; 14. Hopper movable plate; 15. Material shaft support plate; 16. Discharge fixing plate; 17. Discharge movable plate; 18. Pushing section; 19. Clamping plate; 20. Lifting plate; 21. Bracket; 22. Cutting blade; 23. Roll changing rotating plate; 24. Transfer plate; 25. Front support plate; 26. Rear support plate; 27. Ball bearing conveyor belt; 28. Ball bearing hopper; 29. ​​Ball bearing positioning section. Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the implementation of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] In one embodiment of this invention, a material shaft for self-weight winding is hollow, and a self-weighting component is placed inside the material shaft. The self-weighting component consists of several ball bearings, the diameter of which is smaller than the diameter of the material shaft.

[0026] Placing and removing the balls is faster and more convenient than inserting and removing the rollers. The self-weighting component can also be a steel column or a steel block, or other objects with a certain weight but a relatively small volume compared to the material shaft.

[0027] Referring to the accompanying drawings, an embodiment of this invention provides a self-weight winding film machine, comprising a frame 1, on which a winding station is provided. The winding station includes a front winding roller 2 and a rear winding roller 3. Either the front winding roller 2 or the rear winding roller 3 rotates. A material shaft is placed between the front winding roller 2 and the rear winding roller 3. The material shaft is hollow, and several ball bearings are placed inside the material shaft. The diameter of the ball bearings is smaller than the diameter of the material shaft.

[0028] Ball bearings are placed inside the material shaft to ensure its own weight. The material shaft relies on its own weight to reliably fit with the pre-winding roller 2 and the post-winding roller 3. The material shaft is wound up under the drive of the pre-winding roller 2 or the post-winding roller 3 to achieve self-weight winding.

[0029] Based on the above embodiments, the following optimizations or further explanations can be made.

[0030] The frame 1 is also provided with a pre-winding station, which is located on one side of the winding station. The pre-winding station includes a pre-winding front roller 4 and a pre-winding rear roller 5. The pre-winding front roller 4 or the pre-winding rear roller 5 rotates. A material shaft is placed between the pre-winding front roller 4 and the pre-winding rear roller 5. The material shaft is hollow and contains a number of balls. The diameter of the balls is smaller than the diameter of the material shaft.

[0031] After the film roll is wound up at the winding station, the spool can be connected to the pre-winding station for pre-winding to ensure the continuity of winding.

[0032] Furthermore, the film winding machine also includes a discharge tray 6 and a front roller shaft rotating plate 9. The discharge tray 6 is located on one side of the winding rear roller shaft 3. One end of the discharge tray 6 has a ball outlet, and the other end of the discharge tray 6 is provided with a movable lifting part 8. The front roller shaft rotating plate 9 is hinged to the frame 1, and the winding front roller shaft 2 is mounted on the front roller shaft rotating plate 9.

[0033] During discharge, the front roller shaft rotating plate 9 rotates, driving the front winding roller shaft 2 to lift up, causing the wound film roll to leave the winding station and fall onto the discharge tray 6. The lifting part 8 moves to lift one end of the discharge tray 6, causing the film roll on it to tilt. The balls inside the material shaft slide out due to gravity and fall into the ball outlet, completing the discharge. A movable discharge baffle can be set on the side of the discharge tray 6 away from the rear winding roller shaft 3. The discharge baffle can be hinged to the frame 1 and swing up and down or lift up and down to prevent the film roll from rolling over the discharge tray 6 due to inertia during discharge.

[0034] In addition, the frame 1 is also provided with a ball filling station, which includes a material bearing support component, a ball filling channel 10, a ball filling hopper 11, and a ball filling part 12. The material bearing support component positions the material shaft. The ball filling channel 10 is circular and has a ball inlet above it. The ball filling hopper 11 is located above the ball inlet. The ball filling part 12 is cylindrical and pushes the balls in the ball filling channel 10 into the material shaft supported by the material bearing support component.

[0035] The circular design of the ball filling channel 10 is adapted to the ball structure, enabling the balls to move quickly and be positioned. Combined with the positioning of the material shaft by the material bearing support component, the ball filling is fast and stable. The material bearing support component can be an inclined front and rear support plate, a flat plate with a shield, or two flat plates with a distance between them smaller than the diameter of the material shaft.

[0036] Furthermore, the frame 1 is also equipped with a material shaft unloading mechanism, which includes a hopper, a material shaft support plate 15, a material unloading channel, and a pushing part 18. The hopper includes a hopper fixed plate 13 and a hopper movable plate 14. The hopper fixed plate 13 and the hopper movable plate 14 are arranged at opposite inclinations to form a material unloading cavity that is wider at the top and narrower at the bottom. The lower ends of the hopper fixed plate 13 and the hopper movable plate 14 form a material shaft outlet. The lower ends of the hopper movable plate 14 and the lower ends of the hopper fixed plate 13 can move relative to each other. The material discharge channel is located above the material shaft support plate 15, and the material shaft outlet is located above the material discharge channel. The material discharge channel includes a material discharge fixed plate 16 and a material discharge movable plate 17. The material discharge movable plate 17 is hinged to the frame 1. The distance between the material discharge fixed plate 16 and the material discharge movable plate 17 is only enough for a single material shaft to fall. When the material discharge movable plate 17 is stationary, the distance between it and the material shaft support plate 15 is less than the diameter of the material shaft. The material pusher 18 pushes the material shaft on the material shaft support plate 15 to push the material discharge movable plate 17 away.

[0037] The relative movement of the lower end of the movable plate 14 and the lower end of the fixed plate 13 in the hopper causes the size of the material shaft outlet to change. When the material shaft outlet increases, the material shaft falls; when the material shaft outlet decreases, the material shaft cannot fall. The gap between the fixed plate 16 and the movable plate 17 is only enough for a single material shaft to fall, so that the pusher 18 pushes only one material shaft at a time to push the movable plate 17 of the material shaft, so that the single material shafts fall in sequence, which is coordinated with the bead filling process to proceed in an orderly manner.

[0038] Furthermore, two clamping plates 19 are provided between the pre-winding roller 2 and the post-winding roller 3. The two clamping plates 19 can move relative to each other. Each clamping plate 19 is provided with a movable top head that can extend into the material shaft.

[0039] The mandrel extends into the material shaft to fix the material shaft from both sides and prevent the balls inside the material shaft from falling out. During the winding process, the material shaft moves upward and the mandrel moves to adapt to the movement of the material shaft. The two clamping plates 19 move relative to each other to adapt to material shafts of different lengths. Clamping plates 19 can also be set in the pre-winding mechanism. When changing rolls, the front and rear clamping plates 19 fit together to limit the left and right displacement of the material shaft during the roll changing process.

[0040] Furthermore, the film winding machine also includes a lifting plate 20 and a roll changing rotating plate 23. The lifting plate 20 is located between the winding mechanism and the pre-winding mechanism. The lifting plate 20 moves up and down. A bracket 21 is provided on the lifting plate 20. A cutting blade 22 is slidably arranged on the lifting plate 20. The roll changing rotating plate 23 is hinged to the frame 1. The pre-winding front roller shaft and the pre-winding rear roller shaft are arranged on the roll changing rotating plate 23.

[0041] During roll changing, the lifting plate 20 rises, the bracket 21 supports the strip, the cutting blade 22 slides, and the cut material head falls onto the material shaft of the pre-winding mechanism for pre-winding. Then, the lifting plate 20 descends, and after the film roll of the winding mechanism exits, the roll changing rotating plate 23 rotates to lift the entire pre-winding mechanism, so that the pre-wound material shaft falls between the front winding roller 2 and the rear winding roller 3 for winding. The roll changing rotating plate 23 resets, and the bracket 21 supports the strip to increase the surface tension of the strip and ensure effective cutting. The design of the roll changing rotating plate 23 makes the pre-winding and winding connection seamless, eliminating the need to consider the material exit of the pre-winding station and the material entry of the winding station. The material shaft enters from the pre-winding mechanism and exits from the winding mechanism, which can ensure the continuity of winding and avoid structural complexity. A movable baffle can also be set on the side of the winding mechanism away from the pre-winding mechanism. When changing rolls, the baffle is in place to prevent the material shaft from detaching from the winding mechanism due to inertia.

[0042] Furthermore, the film winding machine also includes a movable transfer plate 24. The material bearing support component includes a front support plate 25 and a rear support plate 26. The front support plate 25 or the rear support plate 26 can be movable. The transfer plate 24 positions the material shaft. The transfer plate 24 moves between the material picking station and the material discharging station. At the material picking station, the transfer plate 24 is located below the material bearing support component.

[0043] During transfer, the front support plate 25 or the rear support plate 26 moves to allow the material shaft after filling to fall onto the transfer plate 24. After the transfer plate 24 moves to the discharge station, it releases the positioning of the material shaft, allowing the material shaft to enter the next process. The positioning of the material shaft by the transfer plate 24 can be a telescopic limiting component, a movable baffle, or the transfer plate 24 can be tilted to position the material shaft in conjunction with the baffle. After the transfer plate 24 moves to the discharge station, it moves to pour out the material shaft.

[0044] Furthermore, the frame 1 is also equipped with a ball conveying mechanism, which includes several ball conveyor belts and several ball buckets. The ball buckets are used to connect two ball conveyor belts. One end of the ball conveying mechanism is located below the ball outlet, and the other end of the ball conveying mechanism is located above the ball filling bucket 11. The ball conveyor belts have ball positioning parts, which position the balls.

[0045] The ball conveying mechanism collects the balls falling from the ball outlet and conveys them to the top of the ball hopper 11 to realize the recycling of the balls. The design of the ball hopper and the ball conveyor belt enables the ball conveying mechanism to convey balls longitudinally and laterally. The ball positioning part positions the balls to prevent the balls from moving during the conveying process and affecting the conveying.

[0046] The above description represents the preferred embodiments of the present invention. It should be noted that the scope of protection of the present invention is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in the present invention, and these modifications and substitutions are also considered to be within the scope of protection of the present invention.

Claims

1. A self-weight winding film machine, comprising a frame (1), characterized in that: The frame (1) is provided with a winding station and a ball filling station. The winding station includes a front winding roller (2) and a rear winding roller (3). A material shaft is placed between the front winding roller (2) and the rear winding roller (3). The material shaft is hollow and contains several balls. The diameter of the balls is smaller than the diameter of the material shaft. The front winding roller (2) or the rear winding roller (3) rotates. The ball filling station includes... The material bearing support component positions the material shaft; The bead filling channel (10) is circular, and a ball inlet is provided above the bead filling channel (10); A ball-filling hopper (11) is located above the ball inlet; The ball filling section (12) is cylindrical. The ball filling section (12) pushes the balls in the ball filling channel (10) into the material shaft supported by the material bearing support component.

2. The self-weight winding film machine according to claim 1, characterized in that: The frame (1) is also provided with a pre-winding station, which is located on one side of the winding station. The pre-winding station includes a pre-winding front roller (4) and a pre-winding rear roller (5). The pre-winding front roller (4) or the pre-winding rear roller (5) rotates. A material shaft is placed between the pre-winding front roller (4) and the pre-winding rear roller (5). The material shaft is hollow and several balls are placed inside the material shaft. The diameter of the balls is smaller than the diameter of the material shaft.

3. The self-weight winding film machine according to claim 1, characterized in that: Film winding machines also include The discharge tray (6) is located on one side of the winding roller (3). One end of the discharge tray (6) has a ball outlet (7), and the other end of the discharge tray (6) has a movable lifting part (8). The front roller shaft rotating plate (9) is hinged to the frame (1), and the winding front roller shaft (2) is disposed on the front roller shaft rotating plate (9).

4. A gravity-type film winding machine according to claim 1, characterized in that: The frame (1) is also provided with a material shaft unloading mechanism, the material shaft unloading mechanism including The hopper includes a fixed plate (13) and a movable plate (14). The fixed plate (13) and the movable plate (14) are inclined relative to each other to form a material discharge cavity that is wider at the top and narrower at the bottom. The lower ends of the fixed plate (13) and the movable plate (14) form a material shaft outlet. The lower ends of the movable plate (14) and the fixed plate (13) move relative to each other. Material shaft support plate (15); The material discharge channel is located above the material shaft support plate (15). The material shaft outlet is located above the material discharge channel. The material discharge channel includes a material discharge fixed plate (16) and a material discharge movable plate (17). The material discharge movable plate (17) is hinged to the frame (1). The distance between the material discharge fixed plate (16) and the material discharge movable plate (17) is only enough for a single material shaft to fall. When the material discharge movable plate (17) is stationary, the distance between it and the material shaft support plate (15) is less than the diameter of the material shaft. The material pusher (18) pushes the material shaft on the material shaft support plate (15) to push open the material dropping movable plate (17).

5. A gravity-type film winding machine according to claim 1, characterized in that: Two clamping plates (19) are provided between the pre-winding roller (2) and the post-winding roller (3). The two clamping plates (19) move relative to each other. The clamping plates (19) are provided with movable tops that can extend into the material shaft.

6. A gravity-type film winding machine according to claim 2, characterized in that: Film winding machines also include The lifting plate (20) is located between the winding station and the pre-winding station. The lifting plate (20) moves up and down. The lifting plate (20) is provided with a bracket (21). A cutting blade (22) is slidably arranged on the lifting plate (20). The rewinding plate (23) is hinged to the frame (1), and the pre-winding front roller (4) and the pre-winding rear roller (5) are mounted on the rewinding plate (23).

7. A gravity-type film winding machine according to claim 1, characterized in that: The film winding machine also includes a movable transfer plate (24). The material bearing support component includes a front support plate (25) and a rear support plate (26). The front support plate (25) or the rear support plate (26) can be movable. The transfer plate (24) positions the material shaft. The transfer plate (24) moves between the material picking station and the material discharging station. At the material picking station, the transfer plate (24) is located below the material bearing support component.

8. A gravity-type film winding machine according to claim 3, characterized in that: The frame (1) is also provided with a ball conveying mechanism, which includes several ball conveyor belts (27) and several ball buckets (28). The ball buckets (28) are used to connect two ball conveyor belts (27). One end of the ball conveying mechanism is located below the ball outlet (7), and the other end of the ball conveying mechanism is located above the ball filling bucket (11). The ball conveyor belts (27) have ball positioning parts (29), which position the balls.

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