A winding roller device for film

The design of the air shaft and locking components solves the problem of cumbersome replacement of existing film winding roller devices, enabling quick disassembly and assembly and stable operation, thereby improving film winding efficiency.

CN224312874UActive Publication Date: 2026-06-02NINGBO YIZHONG ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO YIZHONG ELECTRIC CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing film take-up roller device requires frequent replacement of its fixing device, and the existing bolt-fastening structure makes the replacement process cumbersome and wastes human resources.

Method used

It adopts an air shaft and a locking assembly. The air shaft is fixed to the take-up roller by inflation, and the locking assembly is fast-released and locked at both ends of the air shaft by clamping bolts and rotating bearings.

Benefits of technology

This enables quick assembly and disassembly of the film take-up roller, reducing the waste of human resources and improving replacement efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a take-up roller device for film, belonging to the field of take-up roller technology. It includes a mounting frame, a take-up roller mechanism detachably mounted on the mounting frame, and a drive mechanism for rotating the take-up roller mechanism. The take-up roller mechanism includes an air shaft mounted on the mounting frame and a take-up roller detachably sleeved on the outside of the air shaft. The mounting frame is provided with locking components for locking both ends of the air shaft. This application provides the advantage of facilitating the replacement of the film take-up roller.
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Description

Technical Field

[0001] This utility model relates to the field of take-up roller technology, and in particular to a take-up roller device for film. Background Technology

[0002] As the demand for films continues to increase across various industries, film production technology is also constantly evolving. Film winding, a crucial step in the film production process, is of great significance for improving production efficiency and quality. Efficient and stable winding technology ensures that the film remains flat and neat during winding, reducing wrinkles and damage, thereby improving the yield and quality of the finished film.

[0003] Currently, when disassembling a film take-up roller, the film tension must first be released through the equipment's tension control system before operating the fixing devices at both ends. Existing fixing devices are mostly bolt-fastened; a wrench must be used to unscrew the bolts connecting the bearing housing and the bracket, while simultaneously loosening the gear retaining clips. Once the fixing devices are fully loosened, the old take-up roller can be smoothly removed. When installing a new take-up roller, for bolt-fastened structures, the bearing housing and bracket holes must first be aligned, then the fixing bolts must be tightened evenly with a wrench (to prevent roller tilting). Afterward, the transmission gears must be reconnected and adjusted to the appropriate tightness to complete the installation of the fixing device.

[0004] Regarding the aforementioned technologies, since the film take-up rollers need to be replaced frequently, the existing bolt-fastening structure requires repeated disassembly and reassembly of the bolts, resulting in a cumbersome replacement process and wasting human resources. Therefore, the inventors believe there is a need to provide a take-up roller device that facilitates the replacement of film take-up rollers. Utility Model Content

[0005] To facilitate the replacement of film take-up rollers, this application provides a film take-up roller device.

[0006] This application provides a film winding roller device, which adopts the following technical solution:

[0007] A take-up roller device for film includes a mounting frame, a take-up roller mechanism detachably mounted on the mounting frame, and a drive mechanism for driving the take-up roller mechanism to rotate; the take-up roller mechanism includes an air shaft mounted on the mounting frame and a take-up roller detachably sleeved on the outside of the air shaft, and the mounting frame is provided with locking components for locking both ends of the air shaft.

[0008] By adopting the above technical solution, the mounting frame provides a foundation for the winding roller mechanism and drive mechanism. The winding roller mechanism can be detachably mounted on the mounting frame for easy replacement. The air shaft is mounted on the mounting frame, and the winding roller is detachably sleeved on the outside of the air shaft. The air shaft allows for quick assembly and disassembly of the winding roller. At the same time, the locking assembly locks both ends of the air shaft, ensuring its stable installation on the mounting frame. Overall, this achieves the effect of facilitating the replacement of the film winding roller.

[0009] Optionally, the output ends of the air shaft are equipped with rotary bearings; the locking assembly includes a locking seat mounted on the mounting frame and a clamping bolt mounted on the locking seat for clamping the rotary bearing; the locking seat has a clamping thread hole for threaded installation of the clamping bolt.

[0010] By adopting the above technical solution, a locking assembly consisting of a locking seat and a clamping bolt is set on the mounting frame, and a rotary bearing is installed at both output ends of the air shaft. The rotary bearing is clamped by tightening the clamping bolt in the clamping thread hole of the locking seat. This avoids the tedious operation of repeatedly disassembling and assembling bolts in the traditional bolt-fastening structure, which facilitates the disassembly and installation of the take-up roller mechanism, thereby facilitating the replacement of the film take-up roller.

[0011] Optionally, the locking seat has a rotating arrangement groove that communicates with the clamping threaded hole and is used for arranging the rotary bearing.

[0012] By adopting the above technical solution, the rotating arrangement groove provides space for the rotating bearing, so that the rotating bearing can be reasonably installed on the locking seat. The connecting clamping thread hole facilitates the clamping bolt to clamp and lock the rotating bearing, thereby realizing the locking of the air shaft.

[0013] Optionally, the locking seat is further provided with limiting protrusions on both sides of the rotating arrangement groove to prevent displacement of the rotating bearing.

[0014] By adopting the above technical solution, the limiting protrusions on both sides of the rotating arrangement groove can prevent the rotating bearing from shifting and ensure the stable operation of the air shaft and winding roller mechanism.

[0015] Optionally, the locking seat has a rotating groove in the middle of the rotating arrangement groove that corresponds to the locking groove of the outer ring of the rotary bearing.

[0016] By adopting the above technical solution, the locking seat is provided with a rotating groove corresponding to the locking groove of the outer ring of the rotating bearing, which facilitates the arrangement and rotation of the rotating bearing, makes the rotation of the air shaft smoother, and enables the winding roller device to wind up the film more stably.

[0017] Optionally, a rotating handle is also installed at the end of the clamping bolt.

[0018] By adopting the above technical solution, the locking seat and clamping bolt of the locking component work together to lock the air shaft, and the setting of the rotating handle makes it easier for the operator to rotate the clamping bolt, thereby making it easier to tighten or loosen the rotating bearing.

[0019] Optionally, the fixed core is equipped with rotary bearings at both ends; the locking assembly includes a locking seat mounted on the mounting frame for fixing the air shaft; the locking seat includes a first locking seat and a second locking seat rotatably hinged to the first locking seat.

[0020] By adopting the above technical solution, the rotary bearing facilitates the rotation of the air shaft, and the locking seat, which consists of the first locking seat and the second locking seat with a rotary hinge, can be opened and closed by rotation to achieve quick fixing and disassembly of the air shaft, making it convenient to replace the film take-up roller.

[0021] Optionally, the locking seat has a rotation arrangement groove for arranging the rotary bearing; the locking seat also has an installation channel for mounting the end of the air shaft.

[0022] By adopting the above technical solution, the rotating arrangement slot can accommodate the rotating bearing, facilitating the installation and positioning of the rotating bearing and providing support for the rotation of the air shaft. The mounting channel can be used to install the end of the air shaft, realizing the connection between the air shaft and the locking seat, ensuring the stable installation of the take-up roller mechanism on the mounting frame, and facilitating the replacement of the take-up roller body.

[0023] Optionally, a locking structure is further provided between the first locking seat and the second locking seat; the locking structure includes a first mounting seat installed on the first locking seat, a second mounting seat installed on the second locking seat and corresponding to the first mounting seat, and a locking bolt and a locking nut installed on the first mounting seat and the second mounting seat; the first mounting seat has a first locking hole for the locking bolt to be installed, and the second mounting seat has a second locking hole for the locking bolt to be installed.

[0024] By adopting the above technical solution, the specific structure of the locking structure is disclosed. A first mounting seat is installed on the first locking seat, and a second mounting seat corresponding to the first locking seat is installed on the second locking seat. Locking bolts and locking nuts for locking the two are installed on the first mounting seat and the second mounting seat, so as to lock the air shaft on the locking seat.

[0025] Optionally, the air shaft includes a hollow shaft body, an air nozzle installed at one end of the shaft body and connected to an external air source, an expansion air bladder arranged in the inner cavity of the shaft body and connected to the air nozzle, and expansion keys evenly arranged on the outer periphery of the shaft body and connected to the expansion air bladder; the shaft body has an arrangement groove for arranging the expansion keys, and the take-up roller has a snap-fit ​​groove that mates with the expansion keys.

[0026] The specific structure of the air shaft is disclosed by adopting the above technical solution. The air shaft body is hollow, with an air nozzle at one end connected to an external air source. The expansion air bladder in the inner cavity of the shaft is connected to the air nozzle. Expansion keys communicating with the expansion air bladder are evenly arranged on the outer periphery of the shaft body. The shaft body has grooves for arranging the expansion keys. The take-up roller body has a snap-fit ​​groove that engages with the expansion keys, allowing the take-up roller body to be detachably connected to the air shaft by controlling the extension and retraction of the expansion keys through the air nozzle, facilitating the replacement of the take-up roller body. At the same time, the engagement method between the air shaft and the take-up roller body ensures stable rotation of the take-up roller mechanism, which is beneficial for film winding.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. A film take-up roller device, comprising a mounting frame, a take-up roller mechanism detachably mounted on the mounting frame, and a drive mechanism for driving the take-up roller mechanism to rotate; the take-up roller is mounted on the mounting frame via an air shaft, and is detachably sleeved on the outside of the air shaft. The air shaft enables quick assembly and disassembly of the take-up roller, while a locking component locks both ends of the air shaft, ensuring that the air shaft is stably mounted on the mounting frame. Overall, this device facilitates the replacement of the film take-up roller.

[0029] 2. By using the locking assembly to press the rotating bearing with clamping bolts or by using a combination of a first locking seat and a second locking seat, both ends of the air shaft can be effectively locked, ensuring the stability of the winding roller device during operation;

[0030] 3. By connecting the air valve of the air shaft to an external air source, the expansion air bladder expands and drives the expansion key to engage with the locking groove of the take-up roller, which can securely fix the take-up roller. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a winding roller device for film according to Embodiment 1 of this application.

[0032] Figure 2 This is a cross-sectional schematic diagram of the take-up roller mechanism in Embodiment 1 of this application.

[0033] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle.

[0034] Figure 4 This is a top view of a film winding roller device according to Embodiment 1 of this application.

[0035] Figure 5 This is a schematic diagram of a winding roller device for film according to Embodiment 2 of this application.

[0036] Figure 6 This is a cross-sectional schematic diagram of the locking component in Embodiment 2 of this application.

[0037] Figure 7 This is a top view of the locking component in Embodiment 2 of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 11. Slider; 12. Slide rail; 13. Drive cylinder; 2. Take-up roller mechanism; 21. Air shaft; 211. Shaft body; 2111. Arrangement groove; 212. Inflatable air bladder; 213. Expansion key; 214. Rotary bearing; 2141. Locking groove; 215. Air nozzle; 22. Take-up roller; 221. Snap-fit ​​groove; 3. Locking assembly; 31. Locking seat; 311. Pressing threaded hole; 312. Rotating arrangement groove; 313. Limiting protrusion; 314. Rotating groove; 315. First lock. 316. Second locking seat; 317. Mounting channel; 318. Hinge seat; 3181. First hinge seat; 3182. Second hinge seat; 3183. Rotary hinge shaft; 32. Clamping bolt; 321. Rotary handle; 33. Locking component; 331. First mounting seat; 3311. First locking hole; 332. Second mounting seat; 3321. Second locking hole; 333. Locking bolt; 334. Locking nut; 4. Drive mechanism; 41. First gear; 42. Second gear; 43. Drive motor; 5. Membrane. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] Example 1

[0041] This application discloses a take-up roller device for film. (Refer to...) Figure 1 A take-up roller device for film includes a mounting frame 1, a take-up roller mechanism 2 detachably mounted on the mounting frame 1, and a drive mechanism 4 for driving the take-up roller mechanism 2 to rotate. The mounting frame 1 provides a mounting base for the take-up roller mechanism 2 and the drive mechanism 4. The take-up roller mechanism 2 is detachably mounted on the mounting frame 1 for easy replacement of the take-up roller 22.

[0042] Reference Figure 1 The mounting frame 1 also has a horizontal adjustment assembly for adjusting the horizontal displacement of the take-up roller mechanism 2. The horizontal adjustment assembly includes a slider 11 mounted on the bottom of the mounting frame 1, a slide rail 12 mounted on the bottom of the mounting frame 1 and cooperating with the slider 11, and a drive cylinder 13 mounted on the mounting frame 1 for driving the mounting frame 1 to slide horizontally on the slide rail 12.

[0043] Reference Figure 2The take-up roller mechanism 2 includes an air shaft 21 mounted on the mounting frame 1 and a take-up roller 22 detachably sleeved on the outside of the air shaft 21. The air shaft 21 is a special type of shaft that can expand by inflating to fit tightly with the take-up roller 22, and can be quickly disassembled and replaced by deflating.

[0044] Reference Figure 2 The air shaft 21 includes a hollow shaft body 211, an air nozzle 215 installed at one end of the shaft body 211 and connected to an external air source, an expansion air bladder 212 arranged in the inner cavity of the shaft body 211 and connected to the air nozzle, and expansion keys 213 evenly arranged on the outer periphery of the shaft body 211 and communicating with the expansion air bladder 212. Furthermore, the shaft body 211 has an arrangement groove 2111 for arranging the expansion keys 213. When the expansion air bladder 212 inflates, the expansion keys 213 extend from the arrangement groove 2111 and engage with the engagement groove 221 of the take-up roller 22, achieving a fixed connection between the air shaft 21 and the take-up roller 22. When the expansion air bladder 212 deflates, the expansion keys 213 disengage from the engagement groove 221 of the take-up roller 22, enabling quick disassembly and replacement of the take-up roller 22.

[0045] Reference Figure 2 The take-up roller 22 is a component used to take up the film 5. When the expansion key 213 is engaged in the engagement groove 221, the take-up roller 22 can rotate together with the air shaft 21. The surface of the take-up roller 22 can be smoothed to reduce the friction between the film 5 and the take-up roller 22 and improve the winding effect.

[0046] Reference Figure 3 The mounting frame 1 is equipped with locking components 3 for locking both ends of the air shaft 21. Rotary bearings 214 are mounted on the output ends of both ends of the air shaft 21. The locking components 3 include a locking seat 31 mounted on the mounting frame 1 and a clamping bolt 32 mounted on the locking seat 31 for clamping the rotary bearings 214. The locking seat 31 has a clamping threaded hole 311 for threaded installation of the clamping bolt 32. A rotating handle 321 is also installed at the end of the clamping bolt 32 for easy tightening by the operator.

[0047] Reference Figure 3 The locking seat 31 also has a rotating arrangement groove 312 that connects to the clamping threaded hole 311 and provides space for the rotating bearing 214 to be installed. The rotating arrangement groove 312 provides installation space for the rotating bearing 214, allowing it to be stably installed on the locking seat 31. The locking seat 31 also has limiting protrusions 313 on both sides of the rotating arrangement groove 312 to prevent displacement of the rotating bearing 214. The limiting protrusions 313 can limit the lateral displacement of the rotating bearing 214 and ensure the stability of the air shaft 21.

[0048] Reference Figure 3The locking seat 31 has a rotating groove 314 in the middle of the rotating arrangement groove 312, which corresponds to the locking groove 2141 of the outer ring of the rotating bearing 214. The rotating groove 314 facilitates the arrangement and rotation of the rotating bearing 214, making the rotation of the air shaft 21 smoother, so that the winding roller 22 device can more stably wind up the film 5.

[0049] Reference Figure 1 and Figure 4 The drive mechanism 4 includes a first gear 41 mounted on one end of the air shaft 21, a second gear 42 mounted on the mounting frame 1 and meshing with the first gear 41, and a drive motor 43 mounted on the mounting frame 1 and used to drive the second gear 42 to rotate.

[0050] The implementation principle of a take-up roller device for film 5 in this application embodiment is as follows: A take-up roller device for film 5 includes a mounting frame 1, a take-up roller mechanism 2 detachably mounted on the mounting frame 1, and a drive mechanism 4 for driving the take-up roller mechanism 2 to rotate; the take-up roller 22 is detachably sleeved on the outside of the air expansion shaft 21 and mounted on the mounting frame 1 via an air expansion shaft 21. The air expansion shaft 21 enables quick assembly and disassembly of the take-up roller 22. At the same time, the locking component 3 locks both ends of the air expansion shaft 21, so that the air expansion shaft 21 is stably mounted on the mounting frame 1. The overall effect is to facilitate the replacement of the take-up roller 22 of film 5.

[0051] Example 2

[0052] Compared with Example 1, this embodiment is identical in structure to the film winding roller device in Example 1, except for the locking component 3.

[0053] Reference Figure 5 and Figure 6 Rotary bearings 214 are installed at both ends of the fixed core. The locking assembly 3 includes a locking seat 31 mounted on the mounting frame 1 for fixing the air shaft 21. The locking seat 31 includes a first locking seat 315 and a second locking seat 316 rotatably hinged to the first locking seat 315. The first locking seat 315 is fixedly mounted on the mounting frame 1 by welding, and the second locking seat 316 is rotatably connected to the first locking seat 315 by a hinge seat 318. The hinge seat 318 includes a first hinge seat 3181 mounted on the first locking seat 315, a second hinge seat 3182 mounted on the second locking seat 316, and a rotating hinge shaft 3183 mounted on the first hinge seat 3181 and the second hinge seat 3182, thereby allowing the second locking seat 316 to rotate around the hinge point.

[0054] Reference Figure 6 and Figure 7The locking seat 31 has a rotating arrangement groove 312 for arranging the rotating bearing 214 and an installation channel 317 for mounting the end of the air shaft 21. The rotating arrangement groove 312 provides installation space for the rotating bearing 214, and the installation channel 317 provides an installation position for the end of the air shaft 21.

[0055] Reference Figure 6 and Figure 7 A locking element 33 is also provided between the first locking seat 315 and the second locking seat 316. The locking element 33 includes a first mounting seat 331 mounted on the first locking seat 315, a second mounting seat 332 mounted on the second locking seat 316 and corresponding to the first mounting seat 331, and a locking bolt 333 and a locking nut 334 mounted on the first mounting seat 331 and the second mounting seat 332. The first mounting seat 331 has a first locking hole 3311 for mounting the locking bolt 333, and the second locking seat 316 has a second locking hole 3321 for mounting the locking bolt 333. When it is necessary to lock the air shaft 21, the second locking seat 316 is rotated to fit against the first locking seat 315, then the locking bolt 333 is passed through the first locking hole 3311 and the second locking hole 3321, and then the locking nut 334 is tightened, thereby locking the first locking seat 315 and the second locking seat 316 and fixing the air shaft 21. In this embodiment, there are two locking elements 33.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A take-up roll apparatus for a film, characterized by, It includes a mounting frame (1), a take-up roller mechanism (2) detachably mounted on the mounting frame (1), and a drive mechanism (4) for driving the take-up roller mechanism (2) to rotate; the take-up roller mechanism (2) includes an air shaft (21) mounted on the mounting frame (1) and a take-up roller (22) detachably sleeved on the outside of the air shaft (21); the mounting frame (1) is provided with locking components (3) for locking both ends of the air shaft (21).

2. A winding roll device for a film according to claim 1, characterized in that The output ends of the air shaft (21) are equipped with rotary bearings (214); the locking assembly (3) includes a locking seat (31) mounted on the mounting frame (1) and a clamping bolt (32) mounted on the locking seat (31) for clamping the rotary bearing (214); the locking seat (31) is provided with a clamping thread hole (311) for the clamping bolt (32) to be threaded.

3. A winding roll device for a film according to claim 2, characterized in that The locking seat (31) has a rotating arrangement groove (312) that connects to the clamping threaded hole (311) and is used for the arrangement of the rotating bearing (214).

4. A winding roll device for a film according to claim 3, characterized in that The locking seat (31) is also provided with limiting protrusions (313) on both sides of the rotating arrangement groove (312) to prevent the rotation bearing (214) from shifting.

5. A take-up roller device for film according to claim 3, characterized in that, The locking seat (31) has a rotating groove (314) in the middle of the rotating arrangement groove (312) that corresponds to the locking groove (2141) of the outer ring of the rotating bearing (214).

6. A film winding roller device according to claim 2, characterized in that, The end of the clamping bolt (32) is also equipped with a rotating handle (321).

7. A take-up roller device for film according to claim 1, characterized in that, The air shaft (21) is equipped with rotary bearings (214) at both ends; the locking assembly (3) includes a locking seat (31) mounted on the mounting frame (1) and used to fix the air shaft (21); the locking seat (31) includes a first locking seat (315) and a second locking seat (316) rotatably hinged to the first locking seat (315).

8. A take-up roller device for film according to claim 7, characterized in that, The locking seat (31) has a rotation arrangement groove (312) for arranging the rotary bearing (214); the locking seat (31) also has an installation channel (317) for mounting the end of the air shaft (21).

9. A take-up roller device for film according to claim 7, characterized in that, A locking member (33) is also provided between the first locking seat (315) and the second locking seat (316); the locking member (33) includes a first mounting seat (331) installed on the first locking seat (315), a second mounting seat (332) installed on the second locking seat (316) and corresponding to the first mounting seat (331), and a locking bolt (333) and a locking nut (334) installed on the first mounting seat (331) and the second mounting seat (332); the first mounting seat (331) has a first locking hole (3311) for the locking bolt (333) to be installed, and the second mounting seat (332) has a second locking hole (3321) for the locking bolt (333) to be installed.

10. A take-up roller device for film according to claim 1, characterized in that, The air shaft (21) includes a hollow shaft body (211), an air nozzle (215) installed at one end of the shaft body (211) and connected to an external air source, an expansion air bladder (212) arranged in the inner cavity of the shaft body (211) and connected to the air nozzle (215), and expansion keys (213) evenly arranged on the outer periphery of the shaft body (211) and connected to the expansion air bladder (212); the shaft body (211) has an arrangement groove (2111) for arranging the expansion keys (213), and the take-up roller (22) has a snap-fit ​​groove (221) that cooperates with the expansion keys (213).