Automatic film connecting device for release film coating production
By introducing a spreading plate and an oblique brush into the film splicing machine, the problem of wrinkles at the end of the film was solved, achieving flatness and cleanliness of the film material and improving the stability and continuity of the splicing.
Patent Information
- Application Number
- CN202520687946.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-14
AI Technical Summary
Existing film splicing machines lack pressure rollers or plates at the ends of the disconnected film during splicing, resulting in wrinkles that affect the strength and continuity of the splice.
An automatic film-attaching device was designed, comprising a mounting plate, a flattening mechanism, and brushes. The flattening plate provides rigid support to flatten the film material, while the brushes are angled to remove impurities and flexibly press the film. Combined with a magnetic locking baffle, the device ensures that the film material is flat and clean.
It improves the flatness and cleanliness of the membrane, reduces the membrane breakage rate, and ensures the stability and continuity of the membrane.
Smart Images

Figure CN223920683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of release film production technology, specifically to an automatic film splicing device for release film coating production. Background Technology
[0002] Release film refers to a film with a distinct surface. When in contact with specific materials under limited conditions, release film has no adhesiveness or only slight adhesiveness. To enable continuous production, an automatic film splicing machine is required. The automatic film splicing machine is equipped with two rolls of film. After passing through the tension roller, the two rolls are simultaneously fed into the bottom hot press roller. When film splicing is required, the drive equipment drives the hot press roller to move relative to each other, hot-pressing the broken end of the film to the other side. This allows for seamless switching to the other roll of film, achieving continuous feeding and production.
[0003] Existing film splicing machines often lack pressure rollers or plates to flatten the broken film ends during splicing. This can cause wrinkles to form at the ends under tension, resulting in weak adhesion and subsequent breakage at the seam during subsequent pulling. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide an automatic film splicing device for release film coating production, so as to solve the technical problem that the end of the disconnected film lacks pressure rollers or pressure plates for flattening, which may cause wrinkles to appear at the end under tension.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic film splicing device for release film coating production, comprising a mounting plate, a flattening mechanism fixedly connected to the front side of the mounting plate, the flattening mechanism comprising a mounting rod, guide grooves provided on both sides of the mounting rod, a sleeve rod sleeved on the mounting rod, and a flattening plate inserted into one side of the sleeve rod, the flattening plate being used to flatten the film.
[0006] By adopting the above technical solution, the mounting plate serves as a rigid base, and the platform on the front side provides a stable support platform for the flattening of the membrane material. The connection between the sleeve rod and the mounting rod allows for quick disassembly and installation.
[0007] Furthermore, a brush is inserted into the other side of the sleeve rod, one end of the brush is angled, and the brush and the unfolding plate are arranged in a figure-eight shape.
[0008] By adopting the above technical solution, the oblique setting of the brush causes its bristles to generate tangential friction with the membrane surface, thereby achieving the purpose of cleaning and reducing the risk of seam contamination. The membrane material is first rigidly flattened by the flattening plate, and then flexibly pressed by the brush to ensure the flattening effect.
[0009] Furthermore, one end of the mounting rod is rotatably connected to a baffle, and the baffle has an insertion groove that is compatible with the guide groove.
[0010] By adopting the above technical solution, the rotation of the baffle allows the sleeve rod to slide into the installation rod from the side. When the insertion groove is aligned with the guide groove, a continuous guide track is formed, which avoids the membrane material from being worn on one side due to the tilt of the unfolding plate.
[0011] Furthermore, a receiving box is fixedly connected to the front side of the mounting plate, and the receiving box and one end of the brush are arranged opposite to each other.
[0012] By adopting the above technical solution, the receiving box is located diagonally below the brush, and the brush guides and collects impurities in a concentrated manner, avoiding particle pollution of the surrounding environment. The receiving box is fixed in an integrated manner with the mounting plate, and the displacement of the receiving box due to vibration is prevented.
[0013] Furthermore, the flattening mechanism is provided in two sets, and the two sets of flattening mechanisms are arranged symmetrically.
[0014] By adopting the above technical solution, the symmetrically arranged double flattening mechanism can simultaneously flatten both sides of the two sets of membrane materials, ensuring that the membrane splicing process on both sides can proceed smoothly.
[0015] Furthermore, two symmetrical mounting blocks are fixedly connected to one side of the baffle, and a first magnet is fixedly connected inside the mounting block.
[0016] By adopting the above technical solution, the mounting blocks are symmetrically distributed on both sides of the baffle. The baffle is accurately positioned after it is rotated into place by double-point magnetic attraction. The first magnet is embedded inside the mounting block to avoid the magnet being directly exposed to the working environment and to extend its service life.
[0017] Furthermore, a second magnet is provided on the upper and lower sides of the end face of the mounting rod, and the spacing between the second magnets is the same as that between the first magnets.
[0018] By adopting the above technical solution, the magnet spacing is set consistently, ensuring that the magnetic poles are automatically aligned when the baffle rotates and closes, reducing the difficulty of manual calibration and improving the reliability of locking.
[0019] In summary, the present invention has the following main advantages:
[0020] 1. This utility model sets up an installation plate, a flat plate in the flattening mechanism and a brush. The flat plate makes rigid contact with the film surface at the front end to forcibly disperse the wrinkle stress. At the same time, the brush is attached to the film surface at an angle, and removes surface impurities and smooths out micro wrinkles through the brush bristles. This improves the flatness and cleanliness of the film bonding area at the same time, and significantly reduces the film breakage rate.
[0021] 2. By setting up mounting blocks, a first magnet, and a second magnet, when the baffle rotates and closes, the first magnet in the symmetrical mounting blocks on both sides automatically aligns with the second magnet at the end of the mounting rod, forming a double-point magnetic attraction lock, maintaining the locking force, and preventing the baffle from accidentally popping open. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a rear-view three-dimensional structural diagram of the mounting plate of this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the flattening mechanism of this utility model;
[0025] Figure 4 This is an exploded three-dimensional structural diagram of the flattening mechanism of this utility model;
[0026] Figure 5 This is a side sectional view of the mounting rod and sleeve of this utility model.
[0027] In the diagram: 1. Mounting plate; 2. Flattening mechanism; 201. Mounting rod; 202. Guide groove; 203. Sleeve rod; 204. Flattening plate; 205. Brush; 206. Baffle; 207. Insertion groove; 3. Receiving box; 4. Mounting block; 5. First magnet; 6. Second magnet. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0029] Example 1:
[0030] An automatic film splicing device for release film coating production, such as Figures 1-5 As shown, the device includes a mounting plate 1, with a flattening mechanism 2 fixedly connected to the front side of the mounting plate 1. The flattening mechanism 2 includes a mounting rod 201, with guide grooves 202 on both sides of the mounting rod 201. A sleeve rod 203 is fitted onto the mounting rod 201, and a flattening plate 204 is inserted into one side of the sleeve rod 203. The flattening plate 204 is used to flatten the film. The sliding cooperation between the guide grooves 202 and the sleeve rod 203 enables the quick disassembly of the flattening mechanism 2. The elastic deformation of the rubber sleeve rod 203 can make minor adjustments, thereby ensuring the spreading effect while preventing film surface indentations.
[0031] See Figure 3 and Figure 4A brush 205 is inserted into the other side of the sleeve rod 203. One end of the brush 205 is set at an angle. The brush 205 and the spreading plate 204 are arranged in a figure-eight structure. The angled brush 205 generates an angled force on the impurities on the surface of the membrane material during its movement, peeling off the impurities on the membrane surface. The figure-eight structure allows the membrane material to be rigidly flattened by the spreading plate 204 first, and then flexibly pressed and smoothed by the brush 205, which improves the flattening effect.
[0032] See Figure 3 and Figure 4 One end of the mounting rod 201 is rotatably connected to a baffle 206. An insertion groove 207 is provided on the baffle 206. The insertion groove 207 and the guide groove 202 are compatible. When the baffle 206 is open, the insertion groove 207 and the guide groove 202 are aligned to form a continuous slide, which facilitates the quick assembly and disassembly of the sleeve rod 203. When the baffle is closed, the insertion groove is misaligned to form a mechanical lock, preventing the sleeve rod 203 from axially dislodging.
[0033] See Figure 1 The front side of the mounting plate 1 is fixedly connected to the receiving box 3. The receiving box 3 and one end of the brush 205 are set opposite each other. The impurities brushed out by the brush 205 fall into the receiving box 3 along a parabola. The tilting avoids the accumulation of impurities in the working area of the brush 205, which would damage the membrane surface and affect the subsequent membrane bonding effect.
[0034] See Figure 1 The flattening mechanism 2 is provided in two sets, which are symmetrically arranged. The two mechanisms can be adjusted independently, and different sizes of flattening mechanisms 2 can be installed for the film rolls on both sides as needed.
[0035] The implementation principle of this utility model is as follows: First, install the flattening mechanism 2, insert the flattening plate 204 and the brush 205 into both sides of the rubber sleeve rod 206, and fix them by interference fit to prevent the flattening plate 204 and the brush 205 from coming out during use. Rotate the baffle 206 counterclockwise around the end of the mounting rod 201 so that the insertion groove 207 on the baffle is completely aligned with the guide groove 202 on the mounting rod to form a continuous slide. Align the end of the rubber sleeve rod 203 with the aligned insertion groove 207 and guide groove 202, and push it horizontally into the mounting rod 201 along the slide. Rotate the baffle 206 clockwise so that the insertion groove 207 and the guide groove 202 are misaligned to form a physical block.
[0036] The membrane roll is then passed through the bottom of the spreading plate 204 and the brush 205. When the splicing machine detects that the membrane material is broken or needs to be replaced, the system starts the automatic splicing process. During the traction process, the spreading plate 204 forces the wrinkled parts to flatten, and the brush 205 is inclined to adhere to the membrane surface. During the flattening process, the brush simultaneously sweeps the membrane material and further ensures the flattening effect. The dust and debris brushed off are guided to the receiving box 3 set below to prevent impurities from contaminating the seam area.
[0037] Example 2:
[0038] See Figure 5 Two symmetrical mounting blocks 4 are fixedly connected to one side of the baffle 206. A first magnet 5 is fixedly connected inside the mounting block 4. The first magnet 5 and the subsequent second magnet 6 form a lock to ensure that the baffle 206 does not shake after it is closed. The symmetrical layout of the double mounting blocks avoids insufficient locking force of the baffle 206 caused by single-point magnetic attraction.
[0039] See Figure 5 The mounting rod 201 has a second magnet 6 on both the upper and lower sides of its end face. The spacing between the second magnets 6 is the same as that between the first magnets 5. The center line of the second magnets 6 and the center line of the first magnets 5 remain parallel when they are attracted. The automatic magnetic pole alignment function makes the magnetic attraction force reach its peak when the baffle 206 is rotated to the closed angle, thus achieving automatic locking.
[0040] The implementation principle of this utility model is as follows: First, after the baffle 206 is rotated into position, the first magnet 5 on its side and the second magnet 6 at the end of the mounting rod 201 generate magnetic attraction to achieve adsorption and fixation, ensuring that the position of the baffle 206 is stable and avoiding accidental rotation.
[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. An automatic film splicing device for release film coating production, characterized by: Including the installation board (1), the front side of the installation board (1) is fixedly connected with the flattening mechanism (2), the flattening mechanism (2) includes installation rod (201), the both sides of the installation rod (201) are provided with guide slot (202), the installation rod (201) is provided with sleeve rod (203), one side of the sleeve rod (203) is inserted with flattening plate (204), the flattening plate (204) is used to flatten the film.
2. The automatic film lamination device for release film coating production according to claim 1, characterized in that: The other side of the sleeve rod (203) is inserted with the brush (205), one end of the brush (205) is obliquely arranged, the brush (205) and the flattening plate (204) are arranged in the shape of an eight.
3. The automatic film lamination device for release film coating production according to claim 1, characterized in that: One end of the installation rod (201) is rotatably connected with the baffle (206), the baffle (206) is provided with insertion slot (207), the insertion slot (207) is matched with the guide slot (202).
4. The automatic film lamination device for release film coating production according to claim 1, characterized in that: The front side of the installation board (1) is fixedly connected with the receiving box (3), the receiving box (3) and one end of the brush (205) are oppositely arranged.
5. The automatic film lamination device for release film coating production according to claim 1, characterized in that: The flattening mechanism (2) is provided with two groups, and the two groups of flattening mechanisms (2) are symmetrically arranged.
6. The automatic film lamination device for release film coating production according to claim 3, characterized in that: One side of the baffle (206) is fixedly connected with two symmetrical mounting blocks (4), the inside of the mounting block (4) is fixedly connected with the first magnet (5).
7. The automatic film lamination device for release film coating production according to claim 1, characterized in that: The end surface of the installation rod (201) is provided with the second magnet (6) on the upper and lower sides, and the interval of the second magnet (6) is the same as that of the first magnet (5).