A pvdc composite film laminated fixing structure

Abstract

The utility model discloses a kind of PVDC composite film laminated fixed structure, including box, two mounting plates are fixedly installed in box one side, and two mounting plates are equipped with two conveying rollers between, two conveying rollers are set up upside down, box other side is equipped with discharge port, box one side is equipped with feed inlet, feed inlet is equipped with two respectively in conveying roller one end, fixed assembly is equipped in box inner wall one end, fixed assembly is corresponding with discharge port.The utility model can further improve the edge binding force of PVDC when pressing, accurately press the edge, prevent interlayer peeling, improve the quality strength of finished product.

Description

Technical Field

[0001] This utility model belongs to the technical field of PVDC composite film production equipment, and specifically relates to a PVDC composite film lamination and fixing structure. Background Technology

[0002] PVDC (polyvinylidene chloride) possesses advantages such as low permeability, strong barrier properties, and chemical resistance. It exhibits high barrier properties against specific gases such as oxygen and water vapor, with minimal changes in barrier properties with humidity, earning it the title of an all-weather high-barrier material. In the preparation of PVDC composite membranes, the lamination and fixing structure plays a crucial role. It must not only ensure a tight bond between the layers to prevent interlayer separation that could affect the composite membrane's performance, but also consider the structural stability and performance retention of the composite membrane under different operating conditions (such as high temperature, high humidity, and mechanical stress).

[0003] Patent CN211280105U discloses a PVC composite film lamination device, including a housing and a controller. The housing has multiple film inlets at its front end and a film outlet at its rear center. Multiple pairs of guide rollers are installed on the inner walls of both sides of the housing, corresponding to the film inlets. An upper lamination roller and a lower lamination roller are arranged from top to bottom on the inner walls of both sides of the housing, near the film outlet. Each guide roller and lower lamination roller includes a first roller and fixed shafts rotatably connected to both ends of the first roller. The upper lamination roller includes a second roller and sliding shafts rotatably connected to both ends of the second roller. A pressure sensor is embedded in the outer wall of the second roller. This invention allows the multi-layered film to be laminated to be guided by the guide rollers and finally compacted by the rolling of the upper lamination roller, replacing the existing method of stacking multiple layers of film, thus saving time and labor, and enabling continuous lamination processing.

[0004] The above-mentioned technical solution lacks further compression of the edge of the composite film during the fixing process, resulting in poor lamination effect, limited contact area, and easy peeling of the layers from the edge. Utility Model Content

[0005] The purpose of this invention is to provide a PVDC composite film lamination and fixing structure to solve the technical defects of existing fixing structures, such as limited pressure contact surface and easy peeling of interlayers from the edges.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A PVDC composite film lamination and fixing structure includes a box body. Two mounting plates are fixedly installed on one side of the box body, and two feeding rollers are provided between the two mounting plates. The two feeding rollers are arranged vertically. A discharge port is provided on the other side of the box body, and a feeding port is provided on one side of the box body. Two feeding ports are provided, each located at one end of a feeding roller. A fixing component is provided on one end of the inner wall of the box body, and the fixing component corresponds to the discharge port.

[0008] Two electric heating rollers are rotatably installed on the inner wall of the chamber, one above the other. The two electric heating rollers are located at the feeding end of the feed inlet, and each of the two electric heating rollers is equipped with a heat insulation plate at one end. The gap between the two heat insulation plates allows the PVD composite film to pass through. The heat insulation plate is made of ceramic fiber, and the electric heating rollers can be connected to independent temperature controllers.

[0009] As a further embodiment of this utility model, an upper pressure roller is rotatably mounted on one end of the inner wall of the box, and a lower pressure roller is provided at the lower end of the upper pressure roller. The upper and lower pressure rollers are used to initially fix the heated composite film.

[0010] As a further embodiment of this utility model, two pressure rollers are rotatably installed on another section of the inner wall of the box, and the two pressure rollers are arranged in correspondence with the upper pressure roller and the lower pressure roller. An extrusion ring is bonded to the periphery of the two pressure rollers, and the extrusion ring is made of fluorosilicone.

[0011] As a preferred embodiment of this utility model, the fixing component includes a support plate, which is fixedly installed on one end of the outer surface of the box. A motor is provided on the upper surface of the support plate, and the output shaft of the motor is rotatably connected to a first gear. One end of the first gear is meshed with a second gear.

[0012] As a further preferred embodiment of this utility model, a clamping rod is fixedly connected to one end of both the first gear and the second gear, and the other end of the clamping rod passes through one side of the housing, with a rotating shaft rotatably mounted at the through end.

[0013] As a further preferred embodiment of this utility model, the rotating shaft is rotatably connected to one side of the inner wall of the box, and edge clamping blocks are fixedly installed at both ends of the two extrusion rods. The edge clamping blocks are evenly distributed in a circular array, and the edge clamping blocks are arc-shaped elastic pressure strips used to press and solidify the edges of the composite film.

[0014] Compared with the prior art, the PVDC composite film lamination and fixing structure of this utility model has the following beneficial effects: the overall structure of this utility model can further improve the bonding force of the PVDC edge when pressing and fixing it, accurately press and fix the edge, prevent interlayer peeling, and improve the quality and strength of the finished product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the extrusion ring in an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing component in an embodiment of this utility model.

[0021] Figure label:

[0022] 1. Housing; 101. Mounting plate; 102. Feed inlet; 103. Feed roller; 104. Discharge outlet;

[0023] 2. Fixing components; 201. Support plate; 202. Motor; 203. First gear; 204. Second gear; 205. Clamping rod; 206. Edge clamping block; 207. Rotating shaft;

[0024] 3. Electric heating roller; 301. Heat insulation plate;

[0025] 4. Upper pressure roller; 401. Lower pressure roller;

[0026] 5. Pressing roller; 501. Extrusion ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0030] See appendix Figures 1-5 As shown in the figure, a PVDC composite film lamination and fixing structure of this utility model includes a box body 1. Two mounting plates 101 are fixedly installed on one side of the box body 1, and two feeding rollers 103 are provided between the two mounting plates 101. The two feeding rollers 103 are arranged vertically. A discharge port 104 is provided on the other side of the box body 1. A feeding port 102 is provided on one side of the box body 1. The feeding port 102 has two parts, which are respectively located at one end of the feeding rollers 103. A fixing component 2 is provided at one end of the inner wall of the box body 1. The fixing component 2 corresponds to the discharge port 104.

[0031] Two electric heating rollers 3 are rotatably installed on the inner wall of the housing 1, distributed vertically. The two electric heating rollers 3 are located at the feeding end of the feed inlet 102, and each of the two electric heating rollers 3 is provided with a heat insulation plate 301 at one end. The gap between the two heat insulation plates 301 allows the PVD composite film to pass through. The heat insulation plate 301 is made of ceramic fiber. The electric heating rollers 3 can be connected to independent temperature controllers.

[0032] Two pressure rollers 5 are rotatably installed on another section of the inner wall of the box body 1, and the two pressure rollers 5 are correspondingly set with the upper pressure roller 4 and the lower pressure roller 401. An extrusion ring 501 is bonded to the outside of the two pressure rollers 5, and the extrusion ring 501 is made of fluorosilicone.

[0033] An upper pressure roller 4 is rotatably installed on one end of the inner wall of the box 1, and a lower pressure roller 401 is provided at the lower end of the upper pressure roller 4. The upper pressure roller 4 and the lower pressure roller 401 are used to initially fix the heated composite film.

[0034] The ceramic fiber insulation board 301 using the above technical solution can reduce heat radiation loss and improve its heating efficiency, while allowing the composite membrane to maintain a stable temperature when passing through the gap, making it convenient to use.

[0035] In this embodiment of the invention, the upper pressure roller 4 and the lower pressure roller 401 apply initial pressure to the preheated composite film to achieve initial bonding between the layers and prevent misalignment. The fluorosilicone extrusion ring 501 on the periphery of the pressing roller 5 provides elastic pressure to compensate for film thickness fluctuations. At the same time, the fluorosilicone maintains elasticity at high temperatures, preventing uneven pressure caused by heat hardening and avoiding damage to the film surface during extrusion. The electric heating roller 3 can independently control the temperature to improve heating efficiency and pressing quality. The pressing roller 5 and other roller groups are all connected to an external power source to achieve rotation. Afterward, the pressing quality of the composite film edge is reinforced by the fixing component 2 to prevent edge peeling.

[0036] See appendix Figures 3 to 5 As shown, the fixing component 2 includes a support plate 201, which is fixedly installed on one end of the outer surface of the housing 1. A motor 202 is provided on the upper surface of the support plate 201. The output shaft of the motor 202 is rotatably connected to a first gear 203, and one end of the first gear 203 is meshed with a second gear 204.

[0037] Both the first gear 203 and the second gear 204 have a clamping rod 205 fixedly connected to one end. The other end of the clamping rod 205 passes through one side of the housing 1, and a rotating shaft 207 is rotatably installed at the through end.

[0038] The rotating shaft 207 is rotatably connected to one side of the inner wall of the housing 1. Both ends of the two extrusion rods 205 are fixedly installed with edge clamping blocks 206. The edge clamping blocks 206 are evenly distributed in a circular array. The edge clamping blocks 206 are arc-shaped elastic strips used to clamp the edge of the composite film.

[0039] To improve the edge bonding strength of the VDC composite film, the motor 202 drives the first gear 203 to mesh with the second gear 204 to drive the extrusion rod 205 to rotate. This causes the arc-shaped elastic pressure strip around the extrusion rod 205 to continuously apply pressure to the edge of the film. The arc-shaped pressure strip conforms to the edge curve of the film, and the pressure distribution is uniform. This offsets the difference in shrinkage stress between PVDC and the substrate, thereby avoiding the problem of easy peeling of the interlayer from the edge and further improving its pressing quality.

[0040] In this embodiment of the invention, two electrically heated rollers 3, distributed vertically, are energized and heated to heat the composite film fed into the feed port 102. The ceramic fiber heat insulation plate 301 reduces heat loss to the outside and forms a narrow gap to allow the composite film to pass through, ensuring that the heating area is concentrated. The heated composite film enters the gap between the upper pressure roller 4 and the lower pressure roller 401. Through the counter-pressure of the two rollers, the softened film layers are initially fixed together. The fluorosilicone extrusion rings 501 around the two pressing rollers 5 are elastic and perform secondary extrusion on the initially fixed composite film. The motor 202 drives the first gear 203 to rotate, and through the meshing second gear 204, it drives the two extrusion rods 205 to rotate synchronously in opposite directions. The edge pressing blocks 206 around the extrusion rods 205 rotate with the extrusion rods 205, applying pressure to the two edges of the composite film to improve the pressing strength. After the pressing is completed, the film is discharged from the discharge port 104.

[0041] The overall structure of this utility model embodiment can further improve the bonding force of PVDC edges when it is pressed, and can accurately press the edges to prevent interlayer peeling, thereby improving the quality and strength of the finished product.

[0042] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A PVDC composite film lamination and fixing structure, comprising a housing (1), characterized in that: Two mounting plates (101) are fixedly installed on one side of the box (1), and two conveying rollers (103) are provided between the two mounting plates (101). The two conveying rollers (103) are arranged vertically. A discharge port (104) is provided on the other side of the box (1). A feed port (102) is provided on one side of the box (1). The feed port (102) has two feed ports located at one end of the conveying rollers (103). A fixing component (2) is provided at one end of the inner wall of the box (1). The fixing component (2) corresponds to the discharge port (104). The inner wall of the box (1) is rotatably mounted with two vertically distributed electric heating rollers (3). The two electric heating rollers (3) are respectively located at the feeding end of the feed inlet (102). Each of the two electric heating rollers (3) is provided with a heat insulation plate (301) at one end. The gap between the two heat insulation plates (301) allows the PVD composite film to pass through. The heat insulation plate (301) is made of ceramic fiber. The electric heating rollers (3) can be connected to independent temperature controllers. The fixing component (2) includes a support plate (201), which is fixedly installed on one end of the outer surface of the box (1). A motor (202) is provided on the upper surface of the support plate (201). The output shaft of the motor (202) is rotatably connected to a first gear (203). One end of the first gear (203) is meshed with a second gear (204). One end of the first gear (203) and the second gear (204) are both fixedly connected to a clamping rod (205). The other end of the clamping rod (205) passes through one side of the box (1), and a rotating shaft (207) is rotatably installed at the through end.

2. The PVDC composite film lamination and fixing structure according to claim 1, characterized in that: An upper pressure roller (4) is rotatably installed on one end of the inner wall of the box (1), and a lower pressure roller (401) is provided at the lower end of the upper pressure roller (4). The upper pressure roller (4) and the lower pressure roller (401) are used to initially fix the heated composite film.

3. The PVDC composite film lamination and fixing structure according to claim 2, characterized in that: Two pressure rollers (5) are rotatably installed on another section of the inner wall of the box (1), and the two pressure rollers (5) are correspondingly arranged with the upper pressure roller (4) and the lower pressure roller (401). The two pressure rollers (5) are bonded with extrusion rings (501) on their periphery. The extrusion rings (501) are made of fluorosilicone.

4. A PVDC composite film lamination and fixing structure according to any one of claims 1-3, characterized in that: The rotating shaft (207) is rotatably connected to one side of the inner wall of the box (1). Both ends of the two extrusion rods (205) are fixedly installed with edge pressing blocks (206). The edge pressing blocks (206) are evenly distributed in a circular array. The edge pressing blocks (206) are arc-shaped elastic strips used to press and solidify the edge of the composite film.

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