Film winding device convenient to discharge

Abstract

The utility model discloses a film winding device convenient for blanking, which belongs to the technical field of film winding and comprises a support, a winding device for winding a film and a blanking device for blanking the wound film are mounted on the support, and the left end of the winding device is connected with the blanking device; the discharging device comprises a driving material receiving assembly and a rolling supporting assembly, the driving material receiving assembly is installed on the top face of the transverse plate body of the support, and the rolling supporting assembly is installed at the left end of the driving material receiving assembly and connected with the left end of the rolling device. By means of the material receiving base, a film roll can be supported and matched with discharging in the discharging process, and the situation that discharging is difficult due to the fact that the weight of the film roll is too large is avoided; the supporting plates are adjusted through the first connecting rods and the second connecting rods, so that the radius of a circular ring formed by the multiple supporting plates is adjustable, winding drums of different sizes can be adapted for winding, and meanwhile the situation that discharging is difficult due to the fact that the winding drums make close contact with the supporting plates during discharging is avoided.

Description

Technical Field

[0001] This utility model relates to the field of film winding technology, and more specifically to a film winding device that facilitates material unloading. Background Technology

[0002] Film blow molding is a molding process used to produce film materials. It is widely used in packaging, agriculture, industry and other fields. Its basic principle is to heat and melt plastic granules, and then use gas to blow the molten plastic into a film. The produced film generally needs to be wound up by a winding machine for subsequent processing and use.

[0003] For example, Chinese patent application CN107628457A discloses a film winding machine, including a winding machine frame. The frame includes a frame base and frame walls standing on both sides of the frame base. It also includes a roll mounted between the frame walls. The roll is rotatably connected to the two frame walls via a rotating shaft. The roll is connected to a roll drive device. The drive device includes a sprocket assembly connected to the rotating shaft and a motor for driving the sprocket assembly to rotate. A movable pressure roller is arranged parallel to the outside of the roll. The pressure roller is in contact with the film on the roll. The pressure roller is connected to an automatic adjustment device for maintaining the pressure roller to press the film with a constant pressure. The roll drive device and the automatic adjustment device are electrically connected to a control box on one side of the frame wall.

[0004] However, when unloading the film after winding, the film roll itself is quite heavy, making manual unloading very troublesome. Furthermore, the fixed-size rotating shaft can only drive one type of roll for winding, which cannot meet the winding requirements of different sizes.

[0005] Based on this, the present invention designs a film winding device that facilitates material feeding to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a film winding device that facilitates material feeding.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A film winding device for easy unloading includes a support, on which a winding device for winding the film and a unloading device for unloading the wound film are mounted, and the left end of the winding device is connected to the unloading device.

[0009] The feeding device includes a drive receiving assembly for supporting the feeding of the film roll and a winding support assembly for providing support during the winding process. The drive receiving assembly is installed on the top surface of the horizontal plate of the support, and the winding support assembly is installed on the left end of the drive receiving assembly. The winding support assembly is connected to the left end of the winding device.

[0010] The drive receiving assembly includes a cylinder, multiple lifting cylinders, a movable seat, a receiving seat, and multiple pulleys. The cylinder is fixedly installed on the outer right side of the vertical plate of the support. The output end of the cylinder slides through the vertical plate of the support and is fixedly connected to the movable seat. The movable seat is slidably installed on the top surface of the horizontal plate of the support. Multiple pulleys are rotatably installed on the front and rear sides of the movable seat respectively. The bottom of the pulleys is limited and rolled to the top surface of the horizontal plate of the support. The left end of the movable seat is connected to the winding support assembly. Multiple lifting cylinders are fixedly installed inside the movable seat. The receiving seat is located on the outer top surface of the movable seat. The output ends of the multiple lifting cylinders face upwards, and the output ends of the multiple lifting cylinders slide through the top of the movable seat and are fixedly connected to the bottom surface of the receiving seat.

[0011] Furthermore, the top surface of the transverse plate of the bracket is provided with two sliding grooves that cooperate with the rolling of the pulley, and the top of the receiving seat is provided with a V-shaped groove, and the height of the top surface of the receiving seat gradually decreases from the front and rear sides to the center.

[0012] Furthermore, the winding device includes a drive assembly, an inner diameter adjustment assembly, and multiple sets of variable diameter support assemblies. The drive assembly is mounted on the vertical plate of the bracket, the inner diameter adjustment assembly is mounted on the left end of the drive assembly, the left end of the inner diameter adjustment assembly is connected to the winding support assembly, and the multiple sets of variable diameter support assemblies are evenly distributed in a circle on the outside of the inner diameter adjustment assembly.

[0013] Furthermore, the drive assembly includes a first motor, a gear, and a gear disc. The first motor is fixedly installed on the right side of the vertical plate of the support. The output end of the first motor rotates through the vertical plate of the support and is fixedly connected to the gear. The gear and the gear disc are both rotatably installed on the left side of the vertical plate of the support. The gear and the gear disc are meshed together. The gear disc has multiple through holes for use with the variable diameter support assembly. The gear disc is connected to the inner diameter adjustment assembly. The second motor is fixedly installed on the right end of the gear disc.

[0014] Furthermore, the inner diameter adjustment assembly includes two fixed seats, a central shaft seat, multiple fixed rods, a bidirectional threaded rod, a second motor, two sliding seats, and a rotating shaft. The second motor is rotatably mounted inside the vertical plate of the support and is fixedly mounted on the right side of the gear plate. The right end of the bidirectional threaded rod rotatably passes through the gear plate and is fixedly connected to the output shaft of the second motor. Two sliding seats are threaded on the outer sides of both ends of the bidirectional threaded rod. A central shaft seat is rotatably sleeved on the outer side of the bidirectional threaded rod and located between the two fixed seats. The two fixed seats are rotatably mounted on the two end faces of the bidirectional threaded rod. The right fixed seat is fixedly mounted on the left side of the gear plate. Multiple fixed rods are located between the fixed seats and the central shaft seat. One end of the fixed rod is fixedly connected to the fixed seat, and the other end is slidably connected to the end of the central shaft seat. The rotating shaft is fixedly mounted on the left side of the left fixed seat and is connected to the winding support assembly. The central shaft seat, fixed seats, and sliding seats are connected to the diameter changing support assembly.

[0015] Furthermore, each set of variable diameter support components includes two variable diameter support components, which are symmetrically arranged left and right. Each variable diameter support component includes a first connecting rod, an adjusting rod, a second connecting rod, a support plate, and a drum. The two ends of the first connecting rod are respectively hinged to the fixed seat and the inner middle of the support plate. The two ends of the adjusting rod are respectively hinged to the middle of the first connecting rod and the sliding seat. The two ends of the second connecting rod are respectively hinged to the end of the central shaft seat away from the center and the inner side of the support plate. Multiple support plates are arranged in a ring array and sleeved on the outside of the bidirectional threaded rod. The drum is in contact with the outside of the support plate.

[0016] Furthermore, the first connecting rod and the second connecting rod are arranged in parallel, the support plate is an arc-shaped plate, multiple support plates form a ring, the gear plate has through holes for the end of the support plate to pass through, and the vertical plate of the bracket has through holes for the end of the support plate to pass through.

[0017] Furthermore, the winding support assembly includes a fixed plate, a support frame, two support wheels, a fixed frame, two fixed wheels, a connecting frame, and a guide seat. The fixed plate is fixedly installed on the left end of the movable seat, and the support frame is fixedly installed on the center of the right side of the fixed plate. Two support wheels are rotatably installed on the inner side of the support frame. The top of the fixed frame is fixedly connected to the inner top wall of the connecting frame, and the bottom of the connecting frame is fixedly connected to the left side of the receiving seat. Two fixed wheels are rotatably installed on the inner side of the fixed frame. The opening of the fixed frame and the opening of the support frame are vertically opposite each other. Both the support wheels and the fixed wheels are tactilely connected to the rotating shaft. The left side of the connecting frame is slidably connected to the right side of the fixed plate. The guide seat is fixedly installed on the right side of the outer side of the support frame. An inclined groove is provided on the top of the guide seat, and the depth of the inclined groove gradually increases from left to right. Multiple through holes are provided on the fixed plate to accommodate the end of the support plate.

[0018] Compared with the prior art, the advantages of this utility model are as follows:

[0019] 1. This utility model, through the setting of the receiving seat, enables the roll to be supported and cooperated with the unloading process, avoiding the situation where the film roll is too heavy and difficult to unload.

[0020] 2. This utility model adjusts the support plate by using the first connecting rod and the second connecting rod, so that the radius of the ring formed by multiple support plates can be adjusted, which can be adapted to rolls of different sizes for winding. At the same time, it avoids the situation where the roll and the support plate are in close contact during unloading, which would make it difficult to unload. The setting of the guide seat ensures that the rotating shaft contacts the support wheel to complete the support during reset. 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 these drawings without creative effort.

[0022] Figure 1 This utility model provides a three-dimensional film winding device for easy material feeding. Figure 1 ;

[0023] Figure 2 This is a front view of the film winding device for easy feeding according to this utility model;

[0024] Figure 3 This is a left view of the film winding device for easy feeding according to this utility model;

[0025] Figure 4 This utility model provides a three-dimensional film winding device for easy material feeding. Figure 2 ;

[0026] Figure 5 For along Figure 3 A three-dimensional diagram of AA with a portion removed;

[0027] Figure 6 This is a perspective view of the feeding device of this utility model;

[0028] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0029] Figure 8 This is a partial perspective view of the winding device of this utility model;

[0030] The labels in the diagram represent:

[0031] 1. Support; 2. Winding device; 21. Drive assembly; 211. First motor; 212. Gear; 213. Gear disc; 22. Inner diameter adjustment assembly; 221. Fixed seat; 222. Central shaft seat; 223. Fixed rod; 224. Bidirectional threaded rod; 225. Second motor; 226. Sliding seat; 227. Rotating shaft; 23. Variable diameter support assembly; 231. First connecting rod; 232. Adjusting rod; 233. 234. Second connecting rod; 235. Support plate; 236. Drum; 3. Feeding device; 31. Drive receiving assembly; 317. Cylinder; 318. Lifting cylinder; 319. Moving seat; 320. Receiving seat; 321. Pulley; 322. Winding support assembly; 323. Fixed plate; 324. Support frame; 325. Support wheel; 326. Fixed frame; 327. Fixed wheel; 328. Connecting frame; 329. Guide seat. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0034] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 A film winding device for easy unloading includes a support 1, on which a winding device 2 for winding the film and a unloading device 3 for unloading the wound film are mounted. The left end of the winding device 2 is connected to the unloading device 3. The unloading device 3 includes a drive receiving assembly 31 for supporting the unloading of the film roll and a winding support assembly 32 for providing support during the winding process. The drive receiving assembly 31 is mounted on the top surface of the transverse plate of the support 1, and the winding support assembly 32 is mounted on the left end of the drive receiving assembly 31. The winding support assembly 32 is connected to the left end of the winding device 2.

[0035] The drive receiving assembly 31 includes a cylinder 311, multiple lifting cylinders 312, a movable seat 313, a receiving seat 314, and multiple pulleys 315. The cylinder 311 is fixedly installed on the outer right side of the vertical plate of the support 1. The output end of the cylinder 311 slides through the vertical plate of the support 1 and is fixedly connected to the movable seat 313. The movable seat 313 is slidably installed on the top surface of the horizontal plate of the support 1. Multiple pulleys 315 are rotatably installed on the front and rear sides of the movable seat 313 respectively. The pulleys 315 are limited and rolled to the top surface of the horizontal plate of the support 1. The left end of the movable seat 313 is connected to the winding support assembly 32. Multiple lifting cylinders 312 are fixedly installed inside the movable seat 313. The receiving seat 314 is located on the outer top surface of the movable seat 313. The output ends of the multiple lifting cylinders 312 face upward, and the output ends of the multiple lifting cylinders 312 slide through the top of the movable seat 313 and are fixedly connected to the bottom surface of the receiving seat 314.

[0036] When the film winding device that facilitates unloading is in normal use, after the winding device 2 has finished winding the film, the lifting cylinder 312 is activated. The lifting cylinder 312 drives the receiving seat 314 to move upward, so that the top surface of the receiving seat 314 contacts and supports the bottom side of the film roll. Then, the cylinder 311 is activated, and the cylinder 311 drives the moving seat 313 to move to the left. The moving seat 313 drives the film roll to move to the left, detaching it from the winding device 2 for unloading. The pulley 315 facilitates the movement of the moving seat 313. The setting of the receiving seat 314 allows the film roll to be supported and assisted in unloading during unloading, avoiding the situation where the film roll is too heavy and difficult to unload.

[0037] Preferably, the top surface of the transverse plate of the support 1 is provided with two sliding grooves that cooperate with the rolling of the pulley 315, and the top of the receiving seat 314 is provided with a V-shaped groove, and the height of the top surface of the receiving seat 314 gradually decreases from the front and rear sides to the center.

[0038] In some embodiments, the winding device 2 includes a drive assembly 21, an inner diameter adjustment assembly 22, and multiple sets of variable diameter support assemblies 23. The drive assembly 21 is mounted on the vertical plate of the bracket 1, the inner diameter adjustment assembly 22 is mounted on the left end of the drive assembly 21, the left end of the inner diameter adjustment assembly 22 is connected to the winding support assembly 32, and the multiple sets of variable diameter support assemblies 23 are evenly distributed in a circle on the outside of the inner diameter adjustment assembly 22.

[0039] The drive assembly 21 includes a first motor 211, a gear 212, and a gear disk 213. The first motor 211 is fixedly installed on the right side of the vertical plate of the bracket 1. The output end of the first motor 211 rotates through the vertical plate of the bracket 1 and is fixedly connected to the gear 212. The gear 212 and the gear disk 213 are both rotatably installed on the left side of the vertical plate of the bracket 1. The gear 212 and the gear disk 213 are meshed together. The gear disk 213 has multiple through holes for use with the variable diameter support assembly 23. The gear disk 213 is connected to the inner diameter adjustment assembly 22.

[0040] The inner diameter adjustment assembly 22 includes two fixed seats 221, a central shaft seat 222, multiple fixed rods 223, a bidirectional threaded rod 224, a second motor 225, two sliding seats 226, and a rotating shaft 227. The second motor 225 is rotatably mounted inside the vertical plate of the bracket 1 and is fixedly mounted on the right side of the gear plate 213. The right end of the bidirectional threaded rod 224 rotatably passes through the gear plate 213 and is fixedly connected to the output shaft of the second motor 225. Two sliding seats 226 are threaded on the outer sides of both ends of the bidirectional threaded rod 224, and the outer side of the bidirectional threaded rod 224 is located between the two fixed seats 221. A central shaft seat 222 is rotatably mounted on the central shaft seat 222. Two fixed seats 221 are rotatably mounted on both ends of the bidirectional threaded rod 224. The right fixed seat 221 is fixedly mounted on the left side of the gear disc 213. Multiple fixed rods 223 are located between the fixed seat 221 and the central shaft seat 222. One end of the fixed rod 223 is fixedly connected to the fixed seat 221, and the other end is inserted into the end of the central shaft seat 222 for sliding connection. A rotating shaft 227 is fixedly mounted on the left side of the left fixed seat 221. The rotating shaft 227 is connected to the winding support assembly 32. The central shaft seat 222, the fixed seat 221, and the sliding seat 226 are connected to the variable diameter support assembly 23.

[0041] Each set of variable diameter support assemblies 23 includes two variable diameter support assemblies 23, which are symmetrically arranged on the left and right sides. The variable diameter support assembly 23 includes a first connecting rod 231, an adjusting rod 232, a second connecting rod 233, a support plate 234, and a drum 235. The two ends of the first connecting rod 231 are respectively hinged to the fixed seat 221 and the inner middle of the support plate 234. The two ends of the adjusting rod 232 are respectively hinged to the middle of the first connecting rod 231 and the sliding seat 226. The two ends of the second connecting rod 233 are respectively hinged to the end of the central shaft seat 222 and the inner side of the support plate 234. Multiple support plates 234 are arranged in a ring array and sleeved on the outside of the bidirectional threaded rod 224. The drum 235 is in contact with the outside of the multiple support plates 234.

[0042] Preferably, the first connecting rod 231 and the second connecting rod 233 at the same end are arranged in parallel, the support plate 234 is an arc plate, and multiple support plates 234 form a ring. The gear plate 213 has a through hole for the end of the support plate 234 to pass through. The vertical plate of the bracket 1 has a through hole for the end of the support plate 234 to pass through.

[0043] In some embodiments, the winding support assembly 32 includes a fixed plate 321, a support frame 322, two support wheels 323, a fixed frame 324, two fixed wheels 325, a connecting frame 326, and a guide seat 327. The fixed plate 321 is fixedly installed on the left end of the top surface of the movable seat 313. The support frame 322 is fixedly installed on the center of the right side of the fixed plate 321. Two support wheels 323 are rotatably installed on the inner side of the support frame 322. The top of the fixed frame 324 is fixedly connected to the inner top wall of the connecting frame 326, and the bottom of the connecting frame 326 is fixedly connected to the left side of the receiving seat 314. Next, two fixed wheels 325 are rotatably installed on the inner side of the fixed frame 324. The opening of the fixed frame 324 is vertically opposite to the opening of the support frame 322. The support wheel 323 and the fixed wheel 325 are both rotatably connected to the rotating shaft 227. The left side of the connecting frame 326 is limited and slidably connected to the right side of the fixed plate 321. The guide seat 327 is fixedly installed on the right side of the outer side of the support frame 322. The top of the guide seat 327 is provided with an inclined sliding groove. The depth of the inclined sliding groove gradually increases from left to right. The fixed plate 321 is provided with multiple through holes that cooperate with the end of the support plate 234 to pass through.

[0044] When the film winding device is in normal use, the roll 235 is sleeved on the outside of multiple support plates 234. The second motor 225 is started, driving the bidirectional threaded rod 224 to rotate. The bidirectional threaded rod 224 drives two sliding seats 226 to move away from the central shaft seat 222 along the bidirectional threaded rod 224. The sliding seats 226 drive the adjusting rod 232 to rotate outwards, which in turn drives the first connecting rod 231 to rotate outwards. The first connecting rod 231 then drives the support plates 234 to move away from the central shaft seat 222. The multiple support plates 234 together support and fix the roll 235. Then, one end of the film is fixed to the outside of the roll 235, and the first motor 225 is started. 11. The first motor 211 drives the gear 212 to rotate, the gear 212 drives the gear disk 213 to rotate, the gear disk 213 drives the right fixed seat 221 to rotate, the right fixed seat 221 drives the fixed rod 223 to rotate, the fixed rod 223 drives the central shaft seat 222 and the left fixed seat 221 to rotate, and the left fixed seat 221 drives the rotating shaft 227 to rotate between the support wheel 323 and the fixed wheel 325; at the same time, the fixed seat 221 and the central shaft seat 222 drive the first connecting rod 231 and the second connecting rod 233 to rotate, the first connecting rod 231 and the second connecting rod 233 drive the support plate 234 to rotate, the support plate 234 drives the roll 235 to rotate, and the roll 235 winds up the film.

[0045] After winding is complete, the lifting cylinder 312 is activated, causing the receiving seat 314 to move upward. The top surface of the receiving seat 314 contacts the bottom side of the film roll. The second motor 225 is then activated, causing the support plate 234 to gradually move closer to the central shaft seat 222, so that the support plate 234 no longer supports the roll 235, and the receiving seat 314 supports the film roll. Simultaneously, the rising of the receiving seat 314 causes the connecting frame 326 to move upward, which in turn causes the fixing frame 324 to move upward. The fixed frame 324 drives the fixed wheel 325 to move upward, so that the fixed wheel 325 no longer presses down on the rotating shaft 227, and at this time the fixed wheel 325 leaves the rotating shaft 227. Then the cylinder 311 is activated, the cylinder 311 pushes the moving seat 313 to move to the left, the moving seat 313 drives the receiving seat 314 to move, the receiving seat 314 drives the film roll to move, so that the roll 235 is disengaged from the support plate 234, thus completing the unloading. During the reset, the guide seat 327 guides the rotating shaft 227 to contact the support wheel 323 to avoid deviation. The adjustment of the support plate 234 by the first connecting rod 231 and the second connecting rod 233 allows the radius of the ring formed by the multiple support plates 234 to be adjusted, which can be adapted to rolls 235 of different sizes for winding, while avoiding the situation where the roll 235 is in close contact with the support plate 234 during unloading, which would make unloading difficult. The setting of the guide seat 327 ensures that the rotating shaft 227 contacts the support wheel 323 to complete the support during the reset.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A film winding device for easy feeding, comprising a support (1), characterized in that: The bracket (1) is equipped with a winding device (2) for winding the film and a feeding device (3) for feeding the wound film. The left end of the winding device (2) is connected to the feeding device (3). The feeding device (3) includes a drive receiving assembly (31) for supporting the feeding of the film roll and a winding support assembly (32) for providing support during the winding process. The drive receiving assembly (31) is installed on the top surface of the transverse plate of the bracket (1), and the winding support assembly (32) is installed on the left end of the drive receiving assembly (31). The winding support assembly (32) is connected to the left end of the winding device (2). The drive receiving assembly (31) includes a cylinder (311), multiple lifting cylinders (312), a movable seat (313), a receiving seat (314), and multiple pulleys (315). The cylinder (311) is fixedly installed on the outer right side of the vertical plate of the support (1). The output end of the cylinder (311) slides through the vertical plate of the support (1) and is fixedly connected to the movable seat (313). The movable seat (313) is slidably installed on the top surface of the horizontal plate of the support (1). The multiple pulleys (315) are respectively rotatably installed on the movable seat (313). On the front and rear sides, the pulley (315) is connected to the top surface of the horizontal plate of the bracket (1) for limiting rolling. The left end of the moving seat (313) is connected to the winding support assembly (32). Multiple lifting cylinders (312) are fixedly installed inside the moving seat (313). The receiving seat (314) is set on the outer top surface of the moving seat (313). The output ends of the multiple lifting cylinders (312) face upward, and the output ends of the multiple lifting cylinders (312) slide through the top of the moving seat (313) and are fixedly connected to the bottom surface of the receiving seat (314).

2. The film winding device for easy feeding according to claim 1, characterized in that, The top surface of the transverse plate of the bracket (1) is provided with two sliding grooves that cooperate with the rolling of the pulley (315). The top of the receiving seat (314) is provided with a V-shaped groove, and the height of the top surface of the receiving seat (314) gradually decreases from the front and rear sides to the center.

3. The film winding device for easy feeding according to claim 2, characterized in that, The winding device (2) includes a drive assembly (21), an inner diameter adjustment assembly (22), and multiple sets of variable diameter support assemblies (23). The drive assembly (21) is mounted on the vertical plate of the bracket (1). The inner diameter adjustment assembly (22) is mounted on the left end of the drive assembly (21). The left end of the inner diameter adjustment assembly (22) is connected to the winding support assembly (32). The multiple sets of variable diameter support assemblies (23) are evenly distributed in a circle on the outside of the inner diameter adjustment assembly (22).

4. The film winding device for easy feeding according to claim 3, characterized in that, The drive assembly (21) includes a first motor (211), a gear (212), and a gear disc (213). The first motor (211) is fixedly installed on the right side of the vertical plate of the bracket (1). The output end of the first motor (211) rotates through the vertical plate of the bracket (1) and is fixedly connected to the gear (212). The gear (212) and the gear disc (213) are both rotatably installed on the left side of the vertical plate of the bracket (1). The gear (212) and the gear disc (213) are meshed together. The gear disc (213) has multiple through holes for use with the variable diameter support assembly (23). The gear disc (213) is connected to the inner diameter adjustment assembly (22).

5. The film winding device for easy feeding according to claim 4, characterized in that, The inner diameter adjustment assembly (22) includes two fixed seats (221), a central shaft seat (222), multiple fixed rods (223), a bidirectional threaded rod (224), a second motor (225), two sliding seats (226), and a rotating shaft (227). The second motor (225) is rotatably mounted inside the vertical plate of the bracket (1). The second motor (225) is fixedly mounted on the right side of the gear plate (213). The right end of the bidirectional threaded rod (224) rotatably passes through the gear plate (213) and is fixedly connected to the output shaft of the second motor (225). Two sliding seats (226) are threaded on the outer sides of both ends of the bidirectional threaded rod (224). The outer side of the bidirectional threaded rod (224) and located between the two fixed seats (221) A central shaft seat (222) is rotatably mounted on the two ends of the bidirectional threaded rod (224). The right fixed seat (221) is fixedly mounted on the left side of the gear disc (213). Multiple fixed rods (223) are located between the fixed seat (221) and the central shaft seat (222). One end of the fixed rod (223) is fixedly connected to the fixed seat (221), and the other end is inserted into the end of the central shaft seat (222) for sliding connection. A rotating shaft (227) is fixedly mounted on the left side of the left fixed seat (221). The rotating shaft (227) is connected to the winding support assembly (32). The central shaft seat (222), the fixed seat (221), and the sliding seat (226) are connected to the variable diameter support assembly (23).

6. The film winding device for easy feeding according to claim 5, characterized in that, Each set of variable diameter support components (23) includes two variable diameter support components (23), which are symmetrically arranged on the left and right. The variable diameter support component (23) includes a first connecting rod (231), an adjusting rod (232), a second connecting rod (233), a support plate (234), and a drum (235). The two ends of the first connecting rod (231) are respectively hinged to the fixed seat (221) and the inner middle of the support plate (234). The two ends of the adjusting rod (232) are respectively hinged to the middle of the first connecting rod (231) and the sliding seat (226). The two ends of the second connecting rod (233) are respectively hinged to the end of the central shaft seat (222) and the inner side of the support plate (234). Multiple support plates (234) are arranged in a ring array and sleeved on the outside of the bidirectional threaded rod (224). The drum (235) is in contact with the outside of the multiple support plates (234).

7. The film winding device for easy feeding according to claim 6, characterized in that, The first connecting rod (231) and the second connecting rod (233) are arranged in parallel. The support plate (234) is an arc-shaped plate. Multiple support plates (234) are arranged in a ring shape. The gear plate (213) has a through hole for the end of the support plate (234) to pass through. The vertical plate of the bracket (1) has a through hole for the end of the support plate (234) to pass through.

8. The film winding device for easy feeding according to claim 7, characterized in that, The winding support assembly (32) includes a fixed plate (321), a support frame (322), two support wheels (323), a fixed frame (324), two fixed wheels (325), a connecting frame (326), and a guide seat (327). The fixed plate (321) is fixedly installed on the left end of the top surface of the movable seat (313). The support frame (322) is fixedly installed on the center of the right side of the fixed plate (321). Two support wheels (323) are rotatably installed on the inner side of the support frame (322). The top of the fixed frame (324) is fixedly connected to the inner top wall of the connecting frame (326). The bottom of the connecting frame (326) is fixed to the left side of the receiving seat (314). The connection is as follows: two fixed wheels (325) are rotatably installed on the inner side of the fixed frame (324). The opening of the fixed frame (324) is set opposite to the opening of the support frame (322). The support wheel (323) and the fixed wheel (325) are both rotatably connected to the rotating shaft (227). The left side of the connecting frame (326) is limited and slidably connected to the right side of the fixed plate (321). The guide seat (327) is fixedly installed on the right side of the outer side of the support frame (322). An inclined groove is opened on the top of the guide seat (327). The depth of the inclined groove gradually increases from left to right. Multiple through holes are opened on the fixed plate (321) to cooperate with the end of the support plate (234) to pass through.

Images