Foldable protective film production and transport device

By designing a foldable protective film production and transportation device, the problems of large space occupation and easy damage of protective film transportation in the existing technology have been solved. The device realizes the folding and adaptability fixation of the protective film, improving transportation efficiency and safety.

CN224546016UActive Publication Date: 2026-07-24KUNSHAN RIMAO ELECTRONIC MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN RIMAO ELECTRONIC MATERIALS CO LTD
Filing Date
2025-08-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing protective film production and transportation equipment cannot be folded when not in use, taking up a lot of space and being easily damaged by bumps and knocks.

Method used

A foldable protective film production and transportation device was designed, including a fixing plate, a slide rail, a folding plate, a stop post, and an adjustment mechanism. Through the cooperation of the stop block, spring, and limit rod, the protective film can be folded and fixed to fit different sizes.

Benefits of technology

It enables the protective film to be folded when not in use, reducing space occupation, and can accommodate protective films of different sizes to prevent bumps and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the production technology field of protection film, disclose collapsible protection film production and transportation device, including fixed plate, the front and back side of fixed plate all are fixedly connected with a plurality of slide rails, a plurality of the outer wall of slide rail all are connected with folding board, the bottom of folding board is equipped with long recess, the inner wall sliding of long recess is connected with the baulk, the top of baulk is fixedly connected with the bottom of fixed plate, the top left and right sides of fixed plate all are fixedly connected with a plurality of limit rod, the outer wall sliding of limit rod is connected with spring no.
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Description

Technical Field

[0001] This utility model relates to the field of protective film production technology, and in particular to a foldable protective film production and transportation device. Background Technology

[0002] A protective film is a thin film material used to protect the surface of an object. It is typically made of plastic, rubber, and paper. By adhering to the surface, it effectively prevents scratches, wear, contamination, and oxidation. Whether it's the screen of electronic products, the paint of cars, or furniture and building materials, protective films play an important protective role, extending the lifespan of objects and maintaining their intact and clean appearance. Protective films have wide applications in many fields. In the electronics industry, screen protectors for mobile phones and tablets prevent scratches and fingerprints. In the automotive industry, paint protection films protect against stone impacts and acid rain corrosion. Depending on the application scenario and performance requirements, protective films can be divided into several types, such as optical protective films, which have high light transmittance and low reflectivity and are mainly used for optical instruments and display devices; electrostatic protective films, which rely on electrostatic adsorption to the surface of objects and are easy to apply and remove; and high-temperature resistant protective films, suitable for protecting objects in high-temperature environments.

[0003] The production of protective films involves complex processes and diverse techniques. The first step is raw material selection. Depending on the application scenario, polyethylene and polypropylene polymers are chosen, mixed, and pre-treated with plasticizers to create uniform raw material granules. Then, the crucial molding stage begins, where blow molding, casting, and calendering processes transform the raw materials into thin films. Antistatic and scratch-resistant coatings can also be added. However, transportation is often necessary during production. Traditional manual transportation is inefficient and cumbersome. With technological advancements, common transportation devices such as roller conveyor systems use multiple sets of rotating rollers to smoothly transport the protective film to coating, printing, and slitting stations. Vacuum adsorption transport devices are also widely used, utilizing vacuum suction to firmly adhere the protective film, preventing shifts and wrinkles during transport and ensuring processing accuracy. These devices work closely with production equipment to achieve continuous and automated production of protective films. However, this transportation method cannot fold the film when not in use, occupying significant space and failing to provide protection, leading to bumps and damage. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a foldable protective film production and transportation device, which aims to improve the problem that in the existing transportation methods, the film cannot be folded up when not in use, thus occupying a lot of space and failing to protect it, resulting in bumps and damage.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a foldable protective film production and transportation device, including a fixed plate, multiple slide rails fixedly connected to the front and rear sides of the fixed plate, folding plates slidably connected to the outer walls of the slide rails, an elongated groove at the bottom of the folding plate, a stop post slidably connected to the inner wall of the elongated groove, the top of the stop post being fixedly connected to the bottom of the fixed plate, multiple limiting rods fixedly connected to the top left and right sides of the fixed plate, a second spring slidably connected to the outer wall of the limiting rod, a stop block fixedly connected to the top of the second spring, the bottom of the stop block slidably connected to the outer wall of the limiting rod, multiple square holes at the top left and right sides of the folding plate, the inner wall of the square holes slidably connected to the outer wall of the stop block, a third baffle fixedly connected to the right side of the slide rail, and an adjustment mechanism provided on the top of the fixed plate for adjusting the clamping.

[0006] As a further description of the above technical solution:

[0007] The adjustment mechanism includes a baffle plate 1, the bottom of which is fixedly connected to the top right side of the fixed plate. A connecting rod 1 is fixedly connected to the left side of the baffle plate 1. A spring 1 is slidably connected to the outer wall of the connecting rod 1. A baffle plate 2 is fixedly connected to the left side of the connecting rod 1. The bottom of the baffle plate 2 is fixedly connected to the top left side of the fixed plate. A moving block is slidably connected to the outer wall of the connecting rod 1. A circular hole is provided on the right side of the moving block.

[0008] As a further description of the above technical solution:

[0009] The top of the folding plate is fixedly connected to a connecting rod 2, and multiple horizontal plates 1 are fixedly connected to the right side of the connecting rod 2.

[0010] As a further description of the above technical solution:

[0011] Multiple locking posts are fixedly connected to the right side of the first horizontal plate, and bolts are fixedly connected to the right side of the first horizontal plate near the middle.

[0012] As a further description of the above technical solution:

[0013] The top of the movable block is fixedly connected to a connecting rod three, and multiple horizontal plates two are fixedly connected to the left side of each connecting rod three.

[0014] As a further description of the above technical solution:

[0015] A semi-circular connecting block is fixedly connected to the right side of the fixing plate, and a threaded hole is opened on the top of the semi-circular connecting block.

[0016] As a further description of the above technical solution:

[0017] A vertical rod is threadedly connected to the inner wall of the threaded hole, and a handle is fixedly connected to the top of the vertical rod. Multiple protective sleeves are fixedly connected to the front and back sides of the handle.

[0018] As a further description of the above technical solution:

[0019] Multiple fixing blocks are fixedly connected to the bottom of the fixing plate around its four sides, and wheels are rotatably connected to the bottom of each fixing block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when not in use, the stop block is pressed. At this time, the stop block will move along the outer wall of the limiting rod. At the same time, the stop block will compress the spring and deform it. Then the stop block will enter the interior of the fixed plate. At this time, the stop block leaves the square hole of the folding plate. Then the folding plate is pushed inward along the slide rail on the fixed plate. The long groove on the folding plate will slide along the outer wall of the stop post, realizing the function of folding the whole, which is convenient for movement and reduces the space occupied.

[0022] 2. In this utility model, when the size of the protective film tube is different, first pull the connecting rod three. At this time, the connecting rod three drives the horizontal plate two to move to the right. Then, the connecting rod three drives the moving block to slide to the right on the surface of the connecting rod one. At the same time, the moving block will squeeze the spring one, causing it to deform. At the same time, the protective film tube is installed on the outer wall of the clamping column, thus realizing the function of fixing and transporting protective films of different sizes. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the foldable protective film production and transportation device proposed in this utility model;

[0024] Figure 2 This is a top view of the foldable protective film production and transportation device proposed in this utility model;

[0025] Figure 3 This is a partial structural exploded view of the connecting rod of the foldable protective film production and transportation device proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of the folding plate of the foldable protective film production and transportation device proposed in this utility model;

[0027] Figure 5 This is a partial structural breakdown diagram of the block of the foldable protective film production and transportation device proposed in this utility model;

[0028] Figure 6 This is a partial structural breakdown of the vertical rod of the foldable protective film production and transportation device proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed plate; 2. Adjustment mechanism; 201. Baffle 1; 202. Connecting rod 1; 203. Spring 1; 204. Moving block; 205. Circular hole; 206. Baffle 2; 3. Slide rail; 4. Folding plate; 5. Long groove; 6. Stop post; 7. Limiting rod; 8. Spring 2; 9. Stop block; 10. Square hole; 11. Baffle 3; 12. Connecting rod 2; 13. Horizontal plate 1; 14. Locking post; 15. Bolt; 16. Connecting rod 3; 17. Horizontal plate 2; 18. Semi-circular connecting block; 19. Threaded hole; 20. Vertical rod; 21. Handle; 22. Protective cover; 23. Wheel; 24. Fixed block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 6 This utility model provides an embodiment of a foldable protective film production and transportation device, including a fixed plate 1 for fixing. Multiple slide rails 3 are fixedly connected to the front and rear sides of the fixed plate 1. Folding plates 4 are slidably connected to the outer walls of the slide rails 3 for easy folding. A long groove 5 is formed at the bottom of the folding plate 4, and a stop post 6 is slidably connected to the inner wall of the long groove 5 for easy blocking. The top of the stop post 6 is fixedly connected to the bottom of the fixed plate 1. Multiple limiting rods 7 are fixedly connected to the left and right sides of the top of the fixed plate 1 for limiting movement. The function of the limiting rod 7 is that the outer wall of the limiting rod 7 is slidably connected to the spring 8, which provides elastic support for the whole. The top of the spring 8 is fixedly connected to the stop 9 for easy blocking. The bottom of the stop 9 is slidably connected to the outer wall of the limiting rod 7. The top left and right sides of the folding plate 4 are provided with multiple square holes 10. The inner wall of the square holes 10 is slidably connected to the outer wall of the stop 9. The right side of the slide rail 3 is fixedly connected to the stop 3, which can play a blocking role. The top of the fixed plate 1 is provided with an adjustment mechanism 2, which is used to adjust the clamping.

[0033] Specifically, the structure includes a fixed plate 1 as the main structure. Several parallel slide rails 3 are fixedly connected to the front and rear sides of the fixed plate 1. The outer walls of these slide rails 3 are slidably connected to the folding plate 4, allowing the folding plate 4 to unfold and fold smoothly on the slide rails 3. A long groove 5 running through the bottom of the folding plate 4 is provided. The inner wall of the long groove 5 is slidably connected to the stop post 6. The top end of the stop post 6 is fixedly connected to the bottom end of the fixed plate 1 to ensure the stability of the structure. Multiple limiting rods 7 are fixedly connected to the top left and right sides of the fixed plate 1. The outer walls of these limiting rods 7 are slidably connected to the second spring 8. A stop block 9 is fixedly connected to the top end of the second spring 8, and the bottom end of the stop block 9 is slidably connected to the outer wall of the limiting rod 7 to achieve the limiting and buffering effect during the unfolding and folding of the folding plate 4.

[0034] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 The adjusting mechanism 2 includes a baffle 201, the bottom of which is fixedly connected to the top right side of the fixed plate 1. A connecting rod 202 is fixedly connected to the left side of the baffle 201, which plays a stable connection role. A spring 203 is slidably connected to the outer wall of the connecting rod 202, which provides elastic support for the whole. A baffle 206 is fixedly connected to the left side of the connecting rod 202, the bottom of which is fixedly connected to the top left side of the fixed plate 1. A moving block 204 is slidably connected to the outer wall of the connecting rod 202, which facilitates movement. A circular hole 205 is provided on the right side of the moving block 204.

[0035] Specifically, the adjustment mechanism 2 includes a baffle 201, the bottom of which is fixedly connected to the top right side of the fixed plate 1 to ensure its stability. On the left side of the baffle 201, a rod called a connecting rod 202 is fixedly connected. The outer wall of the connecting rod 202 is slidably connected to an elastic element called a spring 203, allowing the connecting rod 202 to move flexibly within a certain range. A baffle 206 is also fixedly connected to the left side of the connecting rod 202. The bottom of the baffle 206 is fixedly connected to the top left side of the fixed plate 1 to form a symmetrical structure. A moving block 204 is also slidably connected to the outer wall of the connecting rod 202. The moving block 204 has a circular hole 205 on its right side, thereby realizing the overall function of the adjustment mechanism 2.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4The top of the folding plate 4 is fixedly connected to a connecting rod 12, which serves as a connection. Multiple horizontal plates 13 are fixedly connected to the right side of the connecting rod 12. Multiple locking posts 14 are fixedly connected to the right side of the horizontal plates 13 for easy locking. Bolts 15 are fixedly connected to the right side of the horizontal plates 13 near the middle to make the connection more stable. The top of the moving block 204 is fixedly connected to a connecting rod 3 16 to make the connection more stable. Multiple horizontal plates 2 17 are fixedly connected to the left side of the connecting rod 3 16.

[0037] Specifically, the folding plate 4 is fixedly connected to a connecting rod 12 at its top position. The connecting rod 12 is fixedly connected to multiple horizontal plates 13 on its right side. These horizontal plates 13 serve as supports, and multiple positioning and fixing pins 14 are fixedly connected to their right edges. A bolt 15 is fixedly connected to the right side of the horizontal plate 13 near the middle to ensure the stability and adjustability of the overall structure. The moving block 204 is also fixedly connected to a connecting rod 16 at its top position. The connecting rod 16 is fixedly connected to multiple horizontal plates 17 on its left side, together forming a complete structure.

[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 A semi-circular connecting block 18 is fixedly connected to the right side of the fixed plate 1. A threaded hole 19 is opened at the top of the semi-circular connecting block 18. A vertical rod 20 is threadedly connected to the inner wall of the threaded hole 19, making the connection more stable. A handle 21 is fixedly connected to the top of the vertical rod 20 for easy pulling. Multiple protective sleeves 22 are fixedly connected to the front and rear sides of the handle 21 to protect the handle 21. Multiple fixing blocks 24 are fixedly connected to the bottom of the fixed plate 1 around the perimeter, making the fixation more stable. Wheels 23 are rotatably connected to the bottom of the fixing blocks 24 for transportation.

[0039] Specifically, a semi-circular connecting block 18 is fixedly connected to the right side of the fixing plate 1. The semi-circular connecting block 18 has a threaded hole 19 at its top. The inner wall of the threaded hole 19 is threadedly connected to a vertically set vertical rod 20. A handle 21 is fixedly connected to the top of the vertical rod 20. Multiple protective sleeves 22 are fixedly connected to the front and rear surfaces of the handle 21 to ensure safety and comfort during use. Multiple fixing blocks 24 are fixedly connected to the bottom of the fixing plate 1. Wheels 23 are rotatably connected to the bottom of these fixing blocks 24, allowing the entire device to move flexibly on the ground.

[0040] Working principle: First, when not in use, press the stop block 9. At this time, the stop block 9 will move along the outer wall of the limit rod 7. At the same time, the stop block 9 will compress the spring 8 to deform it. Then the stop block 9 will enter the interior of the fixed plate 1. At this time, the stop block 9 will leave the square hole 10 of the folding plate 4. Then the folding plate 4 will be pushed inward along the slide rail 3 on the fixed plate 1. The long groove 5 on the folding plate 4 will slide along the outer wall of the stop post 6 until it is blocked by the stop post 6. At this time, the folding plate 4 will not move too far and slip down. Until it moves to the innermost position, under the restoring action of the spring 8, the stop block 9 will pop out and lock into the square hole 10 on the folding plate 4, realizing the function of folding the whole, which is convenient for movement and reduces the space occupied.

[0041] When the protective film tubes are of different sizes, first pull the connecting rod 16. At this time, the connecting rod 16 drives the horizontal plate 17 to move to the right. Then, the connecting rod 16 drives the moving block 204 to slide to the right on the surface of the connecting rod 202. At the same time, the moving block 204 will squeeze the spring 203, causing it to deform. This will install the protective film tube on the outer wall of the clamping post 14. Then, release the connecting rod 16. Under the action of the spring 203, the connecting rod 16 will spring back, clamping the protective film tube. This achieves the function of fixing and transporting protective films of different sizes.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable protective film production and transportation device, comprising a fixing plate (1), characterized in that: Multiple slide rails (3) are fixedly connected to the front and rear sides of the fixed plate (1). Folding plates (4) are slidably connected to the outer walls of the multiple slide rails (3). A long groove (5) is provided at the bottom of the folding plate (4). A stop post (6) is slidably connected to the inner wall of the long groove (5). The top of the stop post (6) is fixedly connected to the bottom of the fixed plate (1). Multiple limiting rods (7) are fixedly connected to the left and right sides of the top of the fixed plate (1). Springs (2) are slidably connected to the outer walls of the limiting rods (7). 8) A stop block (9) is fixedly connected to the top of the second spring (8). The bottom of the stop block (9) is slidably connected to the outer wall of the limiting rod (7). Multiple square holes (10) are opened on the left and right sides of the top of the folding plate (4). The inner wall of the square hole (10) is slidably connected to the outer wall of the stop block (9). A baffle plate (11) is fixedly connected to the right side of the slide rail (3). An adjustment mechanism (2) is provided on the top of the fixed plate (1). The adjustment mechanism (2) is used for adjusting and clamping.

2. The foldable protective film production and transportation device according to claim 1, characterized in that: The adjustment mechanism (2) includes a baffle (201), the bottom of which is fixedly connected to the top right side of the fixed plate (1), a connecting rod (202) is fixedly connected to the left side of the baffle (201), a spring (203) is slidably connected to the outer wall of the connecting rod (202), a baffle (206) is fixedly connected to the left side of the connecting rod (202), the bottom of the baffle (206) is fixedly connected to the top left side of the fixed plate (1), a moving block (204) is slidably connected to the outer wall of the connecting rod (202), and a circular hole (205) is provided on the right side of the moving block (204).

3. The foldable protective film production and transportation device according to claim 1, characterized in that: The top of the folding plate (4) is fixedly connected to a connecting rod two (12), and multiple horizontal plates one (13) are fixedly connected to the right side of the connecting rod two (12).

4. The foldable protective film production and transportation device according to claim 3, characterized in that: Multiple locking posts (14) are fixedly connected to the right side of the first horizontal plate (13), and bolts (15) are fixedly connected to the right side of the first horizontal plate (13) near the middle.

5. The foldable protective film production and transportation device according to claim 2, characterized in that: The top of the movable block (204) is fixedly connected to a connecting rod three (16), and multiple horizontal plates two (17) are fixedly connected to the left side of the connecting rod three (16).

6. The foldable protective film production and transportation device according to claim 1, characterized in that: A semi-circular connecting block (18) is fixedly connected to the right side of the fixing plate (1), and a threaded hole (19) is opened on the top of the semi-circular connecting block (18).

7. The foldable protective film production and transportation device according to claim 6, characterized in that: The inner wall of the threaded hole (19) is threaded with a vertical rod (20), and a handle (21) is fixedly connected to the top of the vertical rod (20). Multiple protective sleeves (22) are fixedly connected to the front and rear sides of the handle (21).

8. The foldable protective film production and transportation device according to claim 1, characterized in that: The bottom of the fixed plate (1) is fixedly connected to a plurality of fixed blocks (24) around its perimeter, and the bottom of the fixed blocks (24) is rotatably connected to wheels (23).