Unreeling device for protective film roll
By using the V-shaped bracket, rotating rod, gear and disassembly mechanism in the protective film rolling device, the material waste caused by excessive rolling of the film roll is solved, precise unrolling and simple replacement are achieved, and processing costs are reduced .
Patent Information
- Application Number
- CN202421114118.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing protective film rolling and unwinding device can easily cause the film roll to roll too long during the unwinding process, resulting in waste of materials and increasing processing costs.
A unwinding device including a V-shaped bracket, a rotating rod, a gear, a half-tooth ring, a spring and a disassembly mechanism is designed. By pulling the T-shaped rod, the half-tooth ring is driven to release the limit, and the rotating rod is turned to unwind, when the length is sufficient. When releasing the T-bar, the half-tooth ring rebound limit is used to prevent rolling and unwinding, and the removal and replacement of the coiling roller is simplified by the electric telescopic rod and the bidirectional screw.
It effectively prevents waste of materials with excessively long protective film, reduces processing costs, and simplifies the replacement and disassembly of the winding rollers, improving the practicality of the device.
Smart Images
Figure CN222204178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective films, in particular to an unwinding device for a protective film roll. Background Art
[0002] Protective films are coatings or coverings used to protect the surface of an object from the external environment, physical damage or chemical erosion. They are used in a wide range of applications, from industrial manufacturing to various fields in daily life.
[0003] Aluminum veneer is a material commonly used in building exterior wall decoration. It is made of aluminum alloy. After production, it needs to be covered with a layer of protective film. It is usually unrolled and coated with a protective film roll. The protective film roll includes an inner sleeve and a protective film body wound around the outside of the inner sleeve. The protective film is unrolled and coated by pulling out the protective film.
[0004] However, the above operation needs to stop unwinding when the protective film is long enough. At this time, the roller still has a tendency to move, causing the film roll to continue to roll and unwind, resulting in the protective film being too long, causing material waste, increasing processing costs, and thus failing to meet user needs. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a protective film roll unwinding device, which aims to improve the problem in the prior art that the protective film roll unwinding device may waste materials due to excessive unwinding of the protective film when unwinding.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a unwinding device for a protective film roll, comprising a base, wherein the left and right sides of the top of the base are fixedly connected with V-shaped brackets, the inner side of the left V-shaped bracket is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a supporting plate, the left side of the supporting plate is rotatably connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a gear, the left middle and upper part of the support plate is fixedly connected with a flat plate, the top of the flat plate is provided with a T-bar, the bottom end of the T-bar passes through the flat plate and is fixedly connected with a semi-toothed ring, the outer side of the T-bar is provided with a spring, one end of the spring is fixedly connected to the top of the flat plate, and the other end of the spring is fixedly connected to the inner top of the T-bar, a winding roller is provided on the right side of the support plate, and the right end of the rotating rod passes through the supporting plate and is provided with a disassembly mechanism.
[0007] The above technical solution can prevent the film roll from still rolling and unwinding, resulting in the protective film being too long and causing material waste, thereby reducing processing costs and meeting the needs of users.
[0008] As a further description of the above technical solution:
[0009] The disassembly mechanism includes a fixing plate, which is fixedly connected to the right end of the rotating rod, an open groove is opened on the right side of the fixing plate, a bidirectional screw rod is rotatably connected to the top of the fixing plate, the middle and lower parts of the bidirectional screw rod pass through the open groove, and the upper and lower sides of the outer walls of the bidirectional screw rod are threadedly connected to movable blocks, and an arc-shaped clamping plate is fixedly connected to the right side of the movable block, an L-shaped plate is fixedly connected to the inner side of the V-shaped bracket on the right side, an electric telescopic rod is fixedly connected to the inner right side of the L-shaped plate, and the output end of the electric telescopic rod is fixedly connected to a placement plate, and the right end of the winding roller is plugged into the inner side of the middle part of the left end of the placement plate.
[0010] Through the above technical solution, the placement plate can be driven to move to the right through the electric telescopic rod to free it from the limit on the winding roller. Then, the two-way screw rod can be rotated to drive the movable block to move outward, and the arc-shaped clamping plate will move with it to release the limit fixation on the winding roller. When the protective film on the outside of the winding roller is used up, it can be replaced in time, and it is relatively simple to disassemble and replace the winding roller.
[0011] As a further description of the above technical solution:
[0012] The front and rear ends of the adjacent sides of the two V-shaped brackets are fixedly connected with reinforcing ribs.
[0013] Through the above technical solution, the stability of the V-shaped bracket can be further increased.
[0014] As a further description of the above technical solution:
[0015] A controller is fixedly connected to the right side of the L-shaped plate, and the controller is electrically connected to the electric telescopic rod.
[0016] Through the above technical solution, the operation of the electric telescopic rod can be controlled.
[0017] As a further description of the above technical solution:
[0018] A protective cover is arranged on the outer side of the controller, and one side of the protective cover is rotatably connected to the right side of the L-shaped plate.
[0019] Through the above technical solution, the controller can be less susceptible to damage, thereby increasing the service life of the controller.
[0020] As a further description of the above technical solution:
[0021] The two movable blocks are both slidably connected to the inside of the open slot.
[0022] Through the above technical solution, the moving track of the movable block can be limited so that it can move more smoothly.
[0023] As a further description of the above technical solution:
[0024] The disassembly mechanism also includes a rubber pad, and two rubber pads are respectively fixedly connected to one side of the corresponding arc-shaped clamping plate.
[0025] Through the above technical solution, the friction between the arc-shaped clamping plate and the winding roller can be further increased, so that the clamping can be more stable.
[0026] As a further description of the above technical solution:
[0027] Universal wheels are fixedly connected to the four corners of the bottom of the base.
[0028] Through the above technical solution, the device can be conveniently moved.
[0029] The utility model has the following beneficial effects:
[0030] 1. In the utility model, pulling the T-bar can drive the half-toothed ring to release the limit fixation on the gear. At this time, rotating the rotating rod can drive the winding roller to rotate to unwind and coat the protective film. When the unwound protective film is of sufficient length, release the T-bar. At this time, the spring will release the squeezed force and drive the half-toothed ring to rebound to limit and fix the gear. This can prevent the film roll from still rolling and unwinding, resulting in the protective film being too long and causing material waste. This can reduce processing costs and meet the needs of users.
[0031] 2. In the utility model, the placement plate can be driven to move to the right by the electric telescopic rod to release it from the limit of the winding roller. Then, the two-way screw rod can be rotated to drive the movable block to move outward, and the arc-shaped clamping plate will move along to release the limit fixation of the winding roller. When the protective film on the outside of the winding roller is used up, it can be replaced in time. It is relatively simple to disassemble and replace the winding roller, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 A three-dimensional diagram of an unwinding device for a protective film roll proposed by the utility model;
[0033] Figure 2 This is a side view of an unwinding device for a protective film roll proposed by the utility model;
[0034] Figure 3 This is a partial structural cross-sectional view of an unwinding device for a protective film roll proposed by the utility model;
[0035] Figure 4 for Figure 3 Enlarged view of point A.
[0036] Legend:
[0037] 1. Base; 2. Disassembly mechanism; 201. Fixed plate; 202. Opening groove; 203. Bidirectional screw rod; 204. Movable block; 205. Arc clamp; 206. Rubber pad; 207. L-shaped plate; 208. Electric telescopic rod; 209. Placement plate; 3. V-shaped bracket; 4. Connecting plate; 5. Support plate; 6. Rotating rod; 7. Gear; 8. Flat plate; 9. T-shaped rod; 10. Half-tooth ring; 11. Spring; 12. Winding roller; 13. Reinforcement rib; 14. Universal wheel; 15. Controller; 16. Protective cover. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment of a protective film roll unwinding device, comprising a base 1, V-shaped brackets 3 are fixedly connected to the left and right sides of the top of the base 1, a connecting plate 4 is fixedly connected to the inner side of the left V-shaped bracket 3, a supporting plate 5 is fixedly connected to the top of the connecting plate 4, a rotating rod 6 is rotatably connected to the left side of the supporting plate 5, a gear 7 is fixedly connected to the outer side of the rotating rod 6, a flat plate 8 is fixedly connected to the middle and upper part of the left side of the supporting plate 5, a T-shaped rod 9 is arranged on the top of the flat plate 8, the bottom end of the T-shaped rod 9 penetrates the flat plate 8 and is fixedly connected to a half-toothed ring 10, a spring 11 is arranged on the outer side of the T-shaped rod 9, one end of the spring 11 is fixedly connected to the top of the flat plate 8, and the other end of the spring 11 is fixedly connected to the inner top of the T-shaped rod 9, a winding roller 12 is arranged on the right side of the supporting plate 5, the right end of the rotating rod 6 penetrates the supporting plate 5 and is provided with a disassembly mechanism 2, and the front and rear ends of the adjacent sides of the two V-shaped brackets 3 are fixedly connected with reinforcing ribs 13;
[0040] Specifically, pulling the T-bar 9 first can drive the half-toothed ring 10 to move upward, thereby releasing the limit fixation of the gear 7, and then rotating the rotating rod 6 can drive the winding roller 12 to rotate to unwind and coat the protective film. When the required length of the protective film is sufficient, release the T-bar 9. At this time, the spring 11 will drive the half-toothed ring 10 to rebound by releasing the squeezed force, thereby limiting and fixing the gear 7. This mechanism not only ensures the accuracy of the operation, but also prevents the film roll from continuing to roll and unwind at the critical moment, thereby avoiding material waste due to excessive length of the protective film.
[0041] Reference Figure 1 , Figure 3 and Figure 4 The disassembly mechanism 2 includes a fixed plate 201, which is fixedly connected to the right end of the rotating rod 6. An open groove 202 is opened on the right side of the fixed plate 201. A bidirectional screw rod 203 is rotatably connected to the top of the fixed plate 201. The middle and lower parts of the bidirectional screw rod 203 pass through the open groove 202. The upper and lower sides of the outer walls of the bidirectional screw rod 203 are threadedly connected with movable blocks 204. The right side of the movable block 204 is fixedly connected with an arc clamping plate 205. An L-shaped plate 207 is fixedly connected to the inner side of the right V-shaped bracket 3. An electric telescopic rod 208 is fixedly connected to the right side of the L-shaped plate 207. The output end of the electric telescopic rod 208 is fixedly connected to a placement plate 209. The right end of the winding roller 12 is plugged into the inner side of the middle part of the left end of the placement plate 209. Both movable blocks 204 are slidably connected to the inside of the open groove 202.
[0042] Specifically, when the winding roller 12 needs to be disassembled, the electric telescopic rod 208 can first drive the placement plate 209 to move to the right. The purpose of this action is to release the limit of the placement plate 209 on the winding roller 12 so that it can move freely. Then, the two-way screw rod 203 can be rotated to achieve the precise movement of the movable block 204. When the two-way screw rod 203 is rotated, the movable block 204 will move outward accordingly. This action drives the movement of the arc clamping plate 205, thereby releasing the limit fixation of the winding roller 12. It is relatively simple to disassemble and replace the winding roller 12. This design not only improves work efficiency, but also reduces the difficulty of operation, so that the practicality of the device has been significantly improved.
[0043] Reference Figure 1 The right side of the L-shaped plate 207 is fixedly connected with a controller 15, the controller 15 is electrically connected to the electric telescopic rod 208, a protective cover 16 is provided on the outside of the controller 15, and one side of the protective cover 16 is rotatably connected to the right side of the L-shaped plate 207;
[0044] Specifically, the operation of the electric telescopic rod 208 can be controlled by the controller 15, and the protective cover 16 can protect the controller 15 from being damaged by external factors.
[0045] Reference Figure 4 , the disassembly mechanism 2 also includes a rubber pad 206, and two rubber pads 206 are respectively fixedly connected to one side of the corresponding arc-shaped clamping plate 205;
[0046] Specifically, the friction between the arc-shaped clamping plate 205 and the winding roller 12 can be further increased by the rubber pad 206, so that the clamping can be more stable.
[0047] Reference Figure 1 , universal wheels 14 are fixedly connected to the four corners of the bottom of the base 1;
[0048] Specifically, the device can be conveniently moved by the universal wheels 14 .
[0049] Working principle: When using the device, first move the device to the unwinding position through the universal wheel 14, then wind one side of the protective film on the winding roller 12 around the aluminum plate to be coated, and then pull the T-bar 9 to drive the half-toothed ring 10 to move upward, so as to release the limit fixation of the gear 7. At this time, turn the rotating rod 6 to drive the winding roller 12 to rotate to unwind and coat the protective film. When the unwound protective film is long enough, release the T-bar 9. At this time, the spring 11 will release the squeezed force to drive the half-toothed ring 10 to rebound and limit the gear 7 to prevent the film from The roll is still rolling and unwinding, resulting in a situation where the protective film is too long and material is wasted, thereby reducing processing costs and meeting the needs of users. When the protective film on the winding roller 12 is used up, the electric telescopic rod 208 can first drive the placement plate 209 to move to the right to make it free from the limit of the winding roller 12, and then the two-way screw rod 203 can be rotated to drive the movable block 204 to move outward, and the arc clamping plate 205 will move with it to release the limit fixation of the winding roller 12. It is relatively simple to disassemble and replace the winding roller 12, thereby improving the practicality of the device.
[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A protective film roll unwinding device, comprising a base (1), characterized in that: The left and right sides of the top of the base (1) are fixedly connected with V-shaped brackets (3); the inner side of the left V-shaped bracket (3) is fixedly connected with a connecting plate (4); the top of the connecting plate (4) is fixedly connected with a supporting plate (5); the left side of the supporting plate (5) is rotatably connected with a rotating rod (6); the outer side of the rotating rod (6) is fixedly connected with a gear (7); the middle and upper part of the left side of the supporting plate (5) is fixedly connected with a flat plate (8); the top of the flat plate (8) is provided with a T-shaped rod (9); the bottom end of the T-shaped rod (9) passes through the flat plate (8) and is fixedly connected with a half gear ring (10); the outer side of the T-shaped rod (9) is provided with a spring (11); one end of the spring (11) is fixedly connected to the top of the flat plate (8); the other end of the spring (11) is fixedly connected to the inner top of the T-shaped rod (9); a winding roller (12) is provided on the right side of the supporting plate (5); the right end of the rotating rod (6) passes through the supporting plate (5) and is provided with a disassembly mechanism (2).
2. The unwinding device for a protective film roll according to claim 1, characterized in that: The disassembly mechanism (2) comprises a fixed plate (201), the fixed plate (201) being fixedly connected to the right end of the rotating rod (6), an open slot (202) being provided on the right side of the fixed plate (201), a bidirectional screw rod (203) being rotatably connected to the top of the fixed plate (201), the middle and lower parts of the bidirectional screw rod (203) passing through the open slot (202), a movable block (204) being threadedly connected to the upper and lower sides of the outer wall of the bidirectional screw rod (203), an arc-shaped clamping plate (205) being fixedly connected to the right side of the movable block (204), an L-shaped plate (207) being fixedly connected to the inner side of the right V-shaped bracket (3), an electric telescopic rod (208) being fixedly connected to the right side of the inside of the L-shaped plate (207), an output end of the electric telescopic rod (208) being fixedly connected to a placement plate (209), and the right end of the winding roller (12) being plugged into the inner side of the middle part of the left end of the placement plate (209).
3. The unwinding device for a protective film roll according to claim 1, characterized in that: The front and rear ends of the adjacent sides of the two V-shaped brackets (3) are both fixedly connected with reinforcing ribs (13).
4. The unwinding device for a protective film roll according to claim 2, characterized in that: A controller (15) is fixedly connected to the right side of the L-shaped plate (207), and the controller (15) is electrically connected to the electric telescopic rod (208).
5. The unwinding device for a protective film roll according to claim 4, characterized in that: A protective cover (16) is provided on the outside of the controller (15), and one side of the protective cover (16) is rotatably connected to the right side of the L-shaped plate (207).
6. The unwinding device for a protective film roll according to claim 2, characterized in that: The two movable blocks (204) are both slidably connected to the inside of the opening slot (202).
7. The unwinding device for a protective film roll according to claim 2, characterized in that: The disassembly mechanism (2) further comprises a rubber pad (206), wherein two rubber pads (206) are respectively fixedly connected to one side of a corresponding arc-shaped clamping plate (205).
8. The unwinding device for a protective film roll according to claim 1, characterized in that: Universal wheels (14) are fixedly connected at the four corners of the bottom of the base (1).