A bonding process of metal plate and ETFE film

Abstract

The invention discloses a bonding process of a metal plate and an ETFE film, and relates to the technical field of bonding processing of thin plate materials. According to the invention, a PE polymer layer is firmly attached to an ETFE film to form a composite film, and reinforcement holes are evenly distributed on the outer surface of the metal plate layer, so that during the bonding process, a local composite film can be squeezed into the reinforcement holes, which is beneficial to strengthening the structural connection complexity when the composite film and the metal plate layer are bonded, and can effectively reduce the probability of the composite film falling off and separating from the outer surface of the metal plate layer, and to a certain extent improve the quality of the processed plate-film composite material. At the same time, when applying glue, a glue coating roller is brought into contact with the composite film in a tangential state and kept rotating synchronously with the composite film, and glue is supplied from the inside of the glue coating roller to the outside, so that the glue can be evenly coated on the bonding surface of the composite film, thereby avoiding waste and pollution caused by excessive use of glue, and being beneficial to the implementation of a green bonding production process.

Description

Technical Field

[0001] The invention relates to the field of laminating processing of thin plate materials, and in particular to a laminating process of a metal plate and an ETFE film. Background Art

[0002] The composite sheet formed by bonding metal plates and ETFE films is a corrosion-resistant composite material with strong thermal conductivity. It is usually suitable for scenarios that need to remain pure and be able to perform good heat transfer and exchange with corrosive liquids, such as heat exchangers with corrosive liquid media inside.

[0003] In the prior art, most of the methods use glue to fix the ETFE film on the outer surface of the metal plate. Even if the bonding surface of the metal plate and the ETFE film is roughened before bonding, the adhesion of the glue to the metal plate and the ETFE film is enhanced to a certain extent, but the connection between the ETFE film and the metal plate is still relatively weak. The ETFE film and the metal plate are connected only by curing of the glue. In the subsequent use process, the ETFE film is easily separated from the outer surface of the metal plate due to the continuous change of the working environment. The connection structure is not strong enough, which affects the quality of the composite material formed by bonding the metal plate and the ETFE film. In addition, excessive glue is easily applied during the bonding process, which not only easily causes a waste of glue, but also easily pollutes the environment due to the overflow of the glue.

[0004] Therefore, a lamination process of a metal plate and an ETFE film is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The invention proposes a laminating process for a metal plate and an ETFE film in order to solve the problems existing in the prior art that when a metal plate and an ETFE film are laminated, the glue coating is not uniform and easily overflows, which not only causes waste but also easily pollutes the environment, and the connection between the laminating surfaces of the metal plate and the ETFE film is weak, which causes the ETFE film to easily fall off the metal plate.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] A process for laminating a metal plate and an ETFE film comprises the following steps:

[0008] S1. Evenly opening reinforcement holes on the outer surface of the metal plate layer, and making the reinforcement holes evenly distributed in a matrix shape;

[0009] S2, firmly attaching the PE polymer layer to the outer surface of the ETFE film by heat bonding, so as to form a composite film with the ETFE film on one side and the PE polymer layer on the other side;

[0010] S3, applying glue to the PE polymer layer in the composite film through a glue coating roller;

[0011] S4, laminating the composite film on the outer surface of the metal plate layer by rolling, and squeezing the local composite film into the reinforcement hole during the laminating process;

[0012] S5, feeding the laminated metal sheet layer and the composite film into a continuous rolling device, and gradually increasing the extrusion pressure on the metal sheet layer and the composite film, and applying a pressure of 0.15-0.2Mpa after continuous extrusion for 4-6 times, and maintaining the pressure for 2-3 hours to form a sheet-film composite material;

[0013] S6. Place the plate-membrane composite material in a constant temperature box and keep it warm for 2 to 3 hours at 60 to 80°C to eliminate the internal prestress;

[0014] S7, take out and cool to room temperature, and store in batches;

[0015] The glue coating roller includes a glue coating roller body with a hollow structure inside, and a glue supply channel connected to the hollow structure is opened in a rotating shaft on one side of the glue coating roller body, and surrounding glue outlets are evenly opened on the cylindrical surface of the glue coating roller body, and the glue outlets are connected to the hollow structure inside the glue coating roller body. The length of the cylindrical surface of the glue coating roller body is consistent with the width of the composite film, and bristles are fixedly attached to the cylindrical surface of the glue coating roller body. When glue is applied to the composite film, the glue coating roller is in a tangential state and fits the composite film. The rotation direction of the glue coating roller is consistent with the moving direction of the composite film, and the outermost linear speed of the glue coating roller is consistent with the moving speed of the composite film.

[0016] Preferably, before applying the glue, the side of the metal plate layer to be bonded is roughened, and the outer surface of the roughened metal plate layer is evenly distributed with fine scratches that are crisscrossed horizontally and vertically, and the side of the composite film to be bonded is corona treated.

[0017] Preferably, the inner space of the reinforcement hole is configured as a truncated cone structure, and the inner diameter of the reinforcement hole at one end close to the composite film is 2 / 3 of the inner diameter of the other end thereof.

[0018] Preferably, the metal plate layer is formed by bonding two thin metal plates, and the reinforcement holes are opened through the single thin metal plate. After the single composite film is bonded to the single thin metal plate, the two thin metal plates are bonded to each other.

[0019] Preferably, a balloon matching the position of the reinforcement hole is preset on the composite film.

[0020] Preferably, the reinforcement holes opened on the two thin metal plates are staggered, and a groove is opened on the outer surface of the thin metal plate away from the composite film and is sleeved on the outside of the reinforcement holes, and the height inside the groove is set to 2 / 3 of the thickness of the double-layer composite film.

[0021] Preferably, a continuous laminating device is required when laminating the thin metal plate and the composite film, and when two layers of thin metal plates are laminating each other, the continuous laminating device includes a first outer frame, a first conveyor belt and a second conveyor belt extending horizontally to the left are installed in the first outer frame, and the second conveyor belt is below the first conveyor belt, and the second conveyor belt protrudes to the left outside the first conveyor belt, a first squeezing roller arranged on the inner side of the first conveyor belt and on the right side of the second conveyor belt is rotatably installed in the first outer frame, a second squeezing roller is rotatably installed above the first squeezing roller corresponding to the first conveyor belt and below the first squeezing roller corresponding to the second conveyor belt, and a first outer frame is rotatably installed with a first squeezing roller arranged on the upper right side of the first conveyor belt and on the second conveyor belt. There is a guide roller at the lower right side of the conveyor belt, and a ring groove corresponding to the position of the balloon on the composite film is opened on the guide roller, a glue coating roller is installed between the corresponding second extrusion roller and the guide roller, and a glue coating roller arranged above the second conveyor belt is also rotatably installed on the left side of the first conveyor belt, an electric cutting knife arranged on the first conveyor belt and the second conveyor belt is fixedly installed in the first outer frame, a transversely arranged electromagnetic slide rail is fixedly installed on the top of the first outer frame, and a first carrier frame is fixedly installed on the sliding end of the electromagnetic slide rail, a plurality of vertically arranged electric push rods are fixedly installed in the first carrier frame, and a second carrier frame is fixedly installed on the telescopic end below the electric push rod, and a plurality of evenly distributed electric grippers are fixedly installed on the bottom of the second carrier frame.

[0022] Preferably, the second squeezing roller includes a squeezing roller body, and a plurality of longitudinally distributed insert tubes are provided inside the squeezing roller body, a squeezing rod extending to the outside of the squeezing roller body is slidably inserted in the insert tube, and a spring elastically supported at the end of the squeezing rod is installed in the insert tube.

[0023] Preferably, an air flow channel connected between multiple insert tubes is opened in the extrusion roller body, and the air flow channel passes through the rotating axis of the extrusion roller body to the outside, and an air hole connected to the inside of the insert tube is opened at one end of the extrusion rod located on the outside of the extrusion roller body.

[0024] Preferably, the continuous rolling device includes a second outer frame, and a horizontally arranged third conveyor belt is rotatably installed in the second outer frame, a plurality of third squeezing rollers arranged on the inner side of the third conveyor belt are rotatably installed in the second outer frame, and a plurality of fourth squeezing rollers arranged above the third conveyor belt are rotatably installed in the second outer frame. The plurality of third squeezing rollers and the plurality of fourth squeezing rollers are equidistantly arranged from right to left, and a fourth squeezing roller is correspondingly arranged directly above a third squeezing roller, and the spacing between the upper and lower corresponding third squeezing rollers and fourth squeezing rollers gradually decreases from right to left.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. In the present invention, by evenly distributing the reinforcement holes on the outer surface of the metal plate layer, a local composite film can be squeezed into the reinforcement holes during the bonding process, which is beneficial to strengthening the structural connection complexity of the composite film and the metal plate layer when bonding, and can effectively reduce the probability of the composite film falling off and separating from the outer surface of the metal plate layer. At the same time, by setting the inner diameter of the reinforcement hole close to the composite film to be smaller than the inner diameter of the other end, so that it presents a truncated cone structure, it is difficult for the local composite film to be squeezed into the smaller opening in the reinforcement hole and fall out, which can further improve the technical effect of the process of improving the bonding firmness of the metal plate layer and the composite film through the reinforcement holes, and to a certain extent improve the quality of the processed plate-film composite material;

[0027] 2. In the present invention, two thin metal plates are bonded to form a metal plate layer, and a reinforcement hole is opened through the single thin metal plate, which can effectively reduce the processing difficulty of the reinforcement hole. At the same time, by preforming a balloon adapted to the position of the reinforcement hole on the composite film, the composite film can be prevented from wrinkling due to local areas being squeezed into the periphery of the reinforcement hole, which is conducive to ensuring the flatness of the surface of the plate-film composite material after forming;

[0028] 3. In the present invention, an extrusion rod is provided to squeeze the balloon into the corresponding reinforcement hole, and air is blown into the balloon through the air hole to expand the balloon, so that the balloon fits tightly with the reinforcement hole, which is conducive to ensuring the stability of the balloon being squeezed into the reinforcement hole and firmly fitting. At the same time, by setting the preset outer surface area of ​​the balloon to be larger than the inner surface area of ​​the reinforcement hole, the balloon protruding outside through the reinforcement hole can be squeezed and clamped between two layers of thin metal plates that fit each other, which can strengthen the firmness of the balloon connection in the reinforcement hole, which is conducive to further reducing the probability of the composite film falling off and separating from the metal plate layer;

[0029] 4. In the present invention, by providing a continuous laminating device, the laminating of the composite film and the single-layer thin metal plate, as well as the laminating between two single-layer thin metal plates can be realized continuously, which is beneficial to improving production efficiency. The glue coating roller contacts the composite film in a tangential state and rotates synchronously, which can ensure the uniformity of the glue coating on the laminating surface of the composite film. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 This is a disassembled diagram of the multilayer structure of the plate-membrane composite material of the present invention;

[0032] Figure 2 is a stereoscopic diagram of the plate-membrane composite material of the present invention;

[0033] Figure 3 is a three-dimensional diagram of the continuous laminating device of the present invention;

[0034] Figure 4 For the present invention Figure 3 Front view of the structure in section;

[0035] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;

[0036] Figure 6 This is a three-dimensional diagram of the continuous laminating device of the present invention after the first outer frame on the front side is removed;

[0037] Figure 7 For the present invention Figure 6 The enlarged view of point B in the middle;

[0038] Figure 8 A partially cutaway perspective view of the rubber coating roller of the present invention;

[0039] Fig. 9 is a cross-sectional view of the second squeezing roller of the present invention;

[0040] Fig.10 For the present invention Fig. 9 Enlarged view of point C in the middle;

[0041] Fig.11 It is a three-dimensional diagram of the continuous rolling device of the present invention;

[0042] Fig.12 For the present invention Fig.11 Front view of the structure.

[0043] The serial numbers in the figure are: 1, plate-film composite material; 101, metal plate layer; 102, reinforcement hole; 103, composite film; 104, balloon; 105, groove; 2, first outer frame; 201, first conveyor belt; 202, second conveyor belt; 203, first extrusion roller; 204, second extrusion roller; 2041, extrusion roller body; 2042, cannula; 2043, extrusion rod; 2044, spring; 2045, air flow channel; 2046, air hole; 205, guide roller; 206, glue coating roller; 2061, glue coating roller body; 2062, glue supply channel; 2063, glue outlet; 2064, bristles; 3, electric cutting knife; 4, electromagnetic slide rail; 401, first carrier frame; 402, electric push rod; 403, second carrier frame; 404, electric gripper; 5, continuous rolling device; 501, second outer frame; 502, third conveyor belt; 503, third squeezing roller; 504, fourth squeezing roller. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Example: This example provides a process for laminating a metal plate and an ETFE film. Figure 1 - Fig.12 , specifically, the following steps are included:

[0046] S1, evenly opening the reinforcement holes 102 on the outer surface of the metal plate layer 101, and making the reinforcement holes 102 evenly distributed in a matrix shape;

[0047] S2, firmly attaching the PE polymer layer to the outer surface of the ETFE film by heat bonding, so as to form a composite film 103 with the ETFE film on one side and the PE polymer layer on the other side;

[0048] S3, applying glue to the PE polymer layer in the composite film 103 by means of the glue coating roller 206;

[0049] S4, laminating the composite film 103 on the outer surface of the metal plate layer 101 by rolling, and squeezing a part of the composite film 103 into the reinforcement hole 102 during the laminating process;

[0050] S5, feeding the laminated metal plate layer 101 and the composite film 103 into a continuous rolling device 5, and gradually increasing the extrusion pressure on the metal plate layer 101 and the composite film 103, after continuous extrusion for 6 times, applying a pressure of 0.2Mpa, maintaining the pressure and clamping for 2 hours, to form a plate-film composite material 1;

[0051] S6, placing the plate-membrane composite material 1 in a constant temperature box, keeping it warm at 80° C. for 2 hours, and eliminating the internal prestress;

[0052] S7, take out and cool to room temperature, and store in batches;

[0053] The glue coating roller 206 includes a glue coating roller body 2061 with a hollow structure inside, and a glue supply channel 2062 connected to the hollow structure is opened in the rotating shaft on one side of the glue coating roller body 2061, and glue outlets 2063 are evenly distributed on the cylindrical surface of the glue coating roller body 2061, and the glue outlets 2063 are connected to the hollow structure inside the glue coating roller body 2061. The length of the cylindrical surface of the glue coating roller body 2061 is consistent with the width of the composite film 103, and bristles 2064 are fixedly attached to the cylindrical surface of the glue coating roller body 2061. When applying glue to the composite film 103, the glue coating roller 206 is in a tangential state and fits the composite film 103. The rotation direction of the glue coating roller 206 is consistent with the moving direction of the composite film 103, and the outermost linear speed of the glue coating roller 206 is consistent with the moving speed of the composite film 103.

[0054] The ETFE film structure in this process is ultra-thin, with a thickness of less than 25μm and uniform thickness. Under the control of winding tension, the continuous length can reach 2km. The unique surface treatment process makes the dyne value of the film surface reach more than 46. The metal plate and ETFE film composite plate made by this process have self-cleaning surface, water contact angle greater than 100, and durability of more than 15 years.

[0055] During the implementation of this process, the glue supply channel 2062 is externally connected to the glue supply device. Since the glue supply channel 2062 passes through the rotating shaft of the glue coating roller body 2061, the rotation of the glue coating roller 206 will not affect the supply of glue. The glue enters the hollow structure inside the glue coating roller body 2061 through the glue supply channel 2062, and is then discharged through the glue outlets 2063 evenly distributed on the cylindrical surface of the glue coating roller body 2061, so that the bristles 2064 covering the cylindrical surface of the glue coating roller body 2061 are fully infiltrated with the glue. When the glue is applied to the bonding surface of the composite film 103, since the glue coating roller 206 is in contact with the bonding surface of the composite film 103 in a tangential state, the rotation direction of the glue coating roller 206 is consistent with the moving direction of the composite film 103, and the outermost side of the bristles 2064 is in contact with the composite film 103 during the rotation of the glue coating roller 206. The linear speed of the bonding position is consistent with the moving speed of the composite film 103, which can greatly reduce the relative friction and mutual extrusion force between the glue coating roller 206 and the composite film 103 during the glue coating process. After the composite film 103 passes through the glue coating roller 206, the glue evenly soaked in the bristles 2064 can be gently and comprehensively attached to the composite film 103, which can effectively avoid uneven or excessive glue coating on the bonding surface of the composite film 103, which can not only ensure the firmness of the subsequent bonding and adhesion, but also avoid excessive coating of epoxy glue leading to glue overflow during subsequent extrusion bonding, which is conducive to avoiding waste caused by glue overflow and effectively avoiding environmental pollution caused by excessive use of glue. In addition, the glue used is epoxy resin glue, which has the characteristics of low toxicity and low volatility, and is conducive to achieving green and energy-saving production.

[0056] Since the metal plate layer 101 is pre-opened with uniformly distributed reinforcement holes 102, during the process of laminating the composite film 103 on the metal plate layer 101, local composite film 103 will be squeezed into the reinforcement holes 102. After the local composite film 103 is inserted into the reinforcement holes 102, the connection and fixation will be achieved under the curing of the glue. During the laminating process of the composite film 103 and the metal plate layer 101, the connection structure between the metal plate layer 101 and the composite film 103 is enhanced by inserting the local composite film 103 into the reinforcement holes 102, so that the connection relationship between the metal plate layer 101 and the composite film 103 is more firmly connected, which can effectively reduce the probability of the composite film 103 falling off and separating from the metal plate layer 101, which is beneficial to improving the quality of the manufactured plate-film composite material 1.

[0057] Before applying glue, the side of the metal plate layer 101 to be bonded is roughened, and the outer surface of the metal plate layer 101 after the roughening treatment is evenly distributed with small scratches that are crisscrossed in horizontal and vertical directions. The side of the composite film 103 to be bonded is subjected to corona treatment. During the implementation of this process, by roughening the side of the metal plate layer 101 to be bonded, small scratches that are crisscrossed in horizontal and vertical directions are formed on the outer surface of the metal plate layer 101. When applying glue, the glue can penetrate into the small scratches. After curing, the connection firmness between the glue and the metal plate layer 101 can be effectively improved. Similarly, by roughening the composite film 103 Corona treatment is carried out to break the chemical bonds of the plastic molecules on the bonding surface of the composite film 103, which can effectively enhance the roughness of the bonding surface of the composite film 103. After the glue is coated, it can be better connected to the bonding surface of the composite film 103. After curing, the connection strength between the glue and the composite film 103 can be effectively improved. Through the above treatment, the connection relationship between the cured glue and the metal plate layer 101 and the composite film 103 is effectively enhanced, which can effectively improve the stability of the plate-film composite material 1 during use after manufacturing and molding, and further reduce the probability of the composite film 103 falling off from the metal plate layer 101.

[0058] See also Figure 1 and Figure 5 The internal space of the reinforcement hole 102 is set to a truncated cone structure, and the inner diameter of the reinforcement hole 102 at one end close to the composite film 103 is 2 / 3 of the inner diameter of the other end. During the implementation of the process, since the inner diameter of the reinforcement hole 102 at one end close to the composite film 103 is smaller than the inner diameter of the reinforcement hole 102 at one end away from the composite film 103, the internal space of the reinforcement hole 102 presents a truncated cone structure. Since the port with a smaller inner diameter of the reinforcement hole 102 is located on the outer surface of the metal plate layer 101 that is to be bonded to the composite film 103, during the bonding process, the local composite film 103 is squeezed in from the port with a smaller inner diameter on the reinforcement hole 102. Although the convenience of squeezing the local composite film 103 into the reinforcement hole 102 is reduced to a certain extent, it is precisely because of this that the local composite film 103 is not easy to detach after being squeezed into the reinforcement hole 102, which can further improve the technical effect of improving the bonding firmness of the metal plate layer 101 and the composite film 103 through the reinforcement hole 102.

[0059] See also Figure 3 - Figure 6The metal plate layer 101 is formed by bonding two thin metal plates, the thickness of the single thin metal plate is 3 mm, and the reinforcement hole 102 is opened through the single thin metal plate. After the single-layer composite film 103 is bonded to the single thin metal plate, the two thin metal plates are bonded to each other. During the implementation of this process, since the metal plate layer 101 is formed by bonding two thin metal plates, and the reinforcement hole 102 is opened through the single thin metal plate, this can effectively reduce the difficulty of opening the truncated cone-shaped reinforcement hole 102 in the single thin metal plate, which is conducive to improving the feasibility and convenience of processing the truncated cone-shaped reinforcement hole 102 on the upper and lower surfaces of the metal plate layer 101 in the process.

[0060] A balloon 104 matching the position of the reinforcement hole 102 is preset on the composite film 103, and the outer surface area of ​​the balloon 104 is larger than the inner surface area of ​​the reinforcement hole 102. During the implementation of this process, a spherical balloon 104 protruding outward is pre-formed on the composite film 103 by pre-processing. The position of the balloon 104 corresponds to the position of the reinforcement hole 102 on the single-layer thin metal plate. The balloon 104 corresponds to the part of the composite film 103 that needs to be squeezed into the reinforcement hole 102. By forming the balloon 104 on the composite film 103 in advance, not only can the smoothness of the balloon 104 when squeezing into the reinforcement hole 102 be effectively improved, but also wrinkles of the composite film 103 due to partial squeezing into the reinforcement hole 102 can be avoided, which is beneficial to ensuring the smoothness of the outer surface of the composite film 103 after laminating with the single-layer thin film.

[0061] In the process of squeezing the balloon 104 into the reinforcement hole 102, since the outer surface area of ​​the balloon 104 is larger than the inner surface area of ​​the reinforcement hole 102, and each layer of thin metal plate is bonded to the composite film 103 independently, one layer of metal plate layer 101 is bonded to the composite film 103 before the two layers of thin metal plates both bonded with the composite film 103 are bonded to each other. This makes the balloon 104 protrude outward after it is squeezed into the reinforcement hole 102 after the composite film 103 is bonded to the thin metal plate. When the two layers of thin metal plates are bonded to each other, the balloon 104 protruding outward will be squeezed between the two layers of thin metal plates. By clamping the two layers of thin metal plates, the firmness of the balloon 104 connected to the reinforcement hole 102 can be effectively strengthened, which is conducive to further reducing the probability of the composite film 103 falling off and separating from the metal plate layer 101, and effectively improving the quality of the processed plate-film composite material 1.

[0062] See also Figure 1 and Figure 5The reinforcement holes 102 opened on the two thin metal plates are arranged in a staggered manner, and a groove 105 is opened on the outer surface of the thin metal plate away from the composite film 103 and is sleeved on the outside of the reinforcement hole 102, and the height inside the groove 105 is set to 2 / 3 of the thickness of the double-layer composite film 103. During the implementation of this process, when the protruding part of the balloon 104 is clamped between the two thin metal plates, the protruding part of the balloon 104 will be in the groove 105, and the pre-opened groove 105 can provide a certain accommodation space for clamping the protruding part of the balloon 104, so that when the two thin metal plates are attached to each other, there will be no gap in the middle due to the support of the protruding part of the balloon 104. By pre-opening the groove 105, when the balloon 104 is clamped by the two thin metal plates, it will not affect the adhesion of the two thin metal plates. While strengthening the firm connection of the balloon 104, the firmness of the adhesion of the two thin metal plates is effectively guaranteed.

[0063] See also Figure 3 - Fig.10 , a continuous laminating device is required for laminating the thin metal plate and the composite film 103, and for laminating two layers of thin metal plates to each other. The continuous laminating device includes a first outer frame 2, in which a first conveyor belt 201 and a second conveyor belt 202 extending horizontally to the left are installed, and the second conveyor belt 202 is below the first conveyor belt 201, and the second conveyor belt 202 protrudes to the left outside the first conveyor belt 201, a first squeezing roller 203 arranged on the inner side of the first conveyor belt 201 and on the right side of the second conveyor belt 202 is rotatably installed in the first outer frame 2, a second squeezing roller 204 is rotatably installed above the first squeezing roller 203 corresponding to the first conveyor belt 201, and below the first squeezing roller 203 corresponding to the second conveyor belt 202, a guide roller 205 arranged on the upper right side of the first conveyor belt 201 and on the lower right side of the second conveyor belt 202 is rotatably installed in the first outer frame 2, and an annular groove corresponding to the position of the balloon 104 on the composite film 103 is opened on the guide roller 205.

[0064] A glue coating roller 206 is installed between the corresponding second squeezing roller 204 and the guide roller 205. The left side of the first conveyor belt 201 is also rotatably installed with a glue coating roller 206 arranged above the second conveyor belt 202. The first outer frame 2 is fixedly installed with an electric cutting knife 3 arranged on the first conveyor belt 201 and the second conveyor belt 202. The top of the first outer frame 2 is fixedly installed with a transversely arranged electromagnetic slide rail 4, and the sliding end of the electromagnetic slide rail 4 is fixedly installed with a first carrier frame 401. A plurality of vertically arranged electric push rods 402 are fixedly installed in the first carrier frame 401, and a second carrier frame 403 is fixedly installed on the telescopic end below the electric push rod 402, and a plurality of evenly distributed electric grippers 404 are fixedly installed at the bottom of the second carrier frame 403.

[0065] The second squeezing roller 204 includes a squeezing roller body 2041, and a plurality of longitudinally distributed insert tubes 2042 are provided inside the squeezing roller body 2041, a squeezing rod 2043 extending to the outside of the squeezing roller body 2041 is slidably inserted in the insert tube 2042, a spring 2044 elastically supported at the end of the squeezing rod 2043 is installed in the insert tube 2042, an air flow channel 2045 connecting between the plurality of insert tubes 2042 is provided in the squeezing roller body 2041, and the air flow channel 2045 passes through the rotating axis of the squeezing roller body 2041 to the outside, and an air hole 2046 connected to the inside of the insert tube 2042 is provided at one end of the squeezing rod 2043 located on the outside of the squeezing roller body 2041.

[0066] During the implementation of this process, the composite film 103 can be laminated on a single-layer thin metal plate through the operation of a continuous laminating device, and two single-layer thin metal plates both laminated with the composite film 103 can be laminated to each other to form a plate-film composite material 1, thereby realizing continuous production of the plate-film composite material 1.

[0067] During operation, the staff conveys a single-layer thin metal plate to between the first squeezing roller 203 and the second squeezing roller 204 located above in an upright manner, and the inner diameter of the reinforcement hole 102 in the thin metal plate is small at the top and large at the bottom. The composite film 103 adapted to the thin metal plate is introduced between the first squeezing roller 203 and the second squeezing roller 204 located above, so that the composite film 103 adapted to the thin metal plate covers the upper surface of the thin metal plate. The staff conveys another layer of thin metal plate to between the first squeezing roller 203 and the second squeezing roller 204 located below in an inverted manner. The inner diameter of the reinforcement hole 102 in the thin metal plate is large at the top and small at the bottom. The adapted composite film 103 is introduced between the first extrusion roller 203 and the second extrusion roller 204 located below, so that the adapted composite film 103 covers the lower surface of the thin metal plate. The reinforcement holes 102 opened on the upper and lower thin metal plates are arranged alternately, and the composite film 103 adapted to the upper and lower thin metal plates is introduced through the upper and lower guide rollers 205 respectively. Since the guide roller 205 is provided with a plurality of annular grooves arranged corresponding to the position of the balloon 104, the composite film 103 will not squeeze the balloon 104 during the process of being introduced by the guide roller 205, which is beneficial to ensure the stability of the subsequent balloon 104 being squeezed into the reinforcement hole 102.

[0068] During the continuous movement of the thin metal plate and the composite film 103, the side of the composite film 103 facing the thin metal plate will first be coated with glue by the glue coating roller 206, and then enter the first squeezing roller 203 and the second squeezing roller 204 that cooperate with each other to undergo a rolling operation. The spacing between the correspondingly arranged first squeezing roller 203 and the second squeezing roller 204 is slightly smaller than the total thickness of the thin metal plate and the composite film 103, which can ensure that the thin metal plate and the composite film 103 are stably rolled and bonded after passing through the first squeezing roller 203 and the second squeezing roller 204. During the rotation of the second squeezing roller 204, the squeezing roller 204 is pressed. The length of the pressure rod 2043 moved by the squeezing roller body 2041 when it rotates one circle is consistent with the distance between the two vertical rows of balloons 104 on the composite film 103. This allows the squeezing rod 2043 to rotate one circle exactly to align with the balloon 104 when the second squeezing roller 204 continues to rotate to roll the thin metal plate and the composite film 103. The squeezing rod 2043 is slidably inserted into the insertion tube 2042 and elastically supported by the spring 2044, so that the squeezing rod 2043 can be retracted into the insertion tube 2042 after being squeezed, thereby ensuring the stability of the second squeezing roller 204 during rotation.

[0069] When the extrusion rod 2043, the balloon 104 and the reinforcement hole 102 are aligned, the extrusion rod 2043 retracted into the insertion tube 2042 can be re-extended with the help of the elastic support of the spring 2044. During the bonding process of the thin metal plate and the composite film 103, the balloon 104 is automatically and stably squeezed into the reinforcement hole 102. The end of the air flow channel 2045 is connected to an external air pump. The air flow is connected through the air flow channel 2045 and filled into each insertion tube 2042. Then, it is ejected through the air hole 2046. When the extrusion rod 2043 squeezes the balloon 104 into the corresponding reinforcement hole 102 When the balloon 104 is inflated, the air flow ejected from the air hole 2046 is filled into the balloon 104, so that the balloon 104 is inflated and expanded in the reinforcement hole 102, ensuring that the outer surface of the balloon 104 is in close contact with the inner surface of the reinforcement hole 102, which can not only improve the firmness of the fit between the balloon 104 and the reinforcement hole 102 to a certain extent, but also make the balloon 104 protrude outside the reinforcement hole 102 by inflation, and fully expand the balloon 104, which is conducive to clamping the protruding part of the balloon 104 in the groove 105 when the two layers of thin metal plates are subsequently fitted together.

[0070] After the upper and lower layers of thin metal plates and the composite film 103 are attached, they will be conveyed to the left by the first conveyor belt 201 and the second conveyor belt 202 respectively. During the conveying process, they will be cut into equal sizes by the electric cutting knife 3. In the initial state, the electric gripper 404 is located above the left end of the first conveyor belt 201. The electric gripper 404 grabs the laminated thin metal plate and the composite film 103 cut from the top and conveys it to the left. The second conveyor belt 202 continues to convey the laminated thin metal plate and the composite film 103 cut from the bottom to the left. After the upper and lower layers of thin metal plates move to the left, they will be attached to the The first conveyor belt 201 is in contact with the glue coating roller 206 arranged at the left end, and the bottom of the upper thin metal plate and the top of the lower thin metal plate are in contact with the glue coating roller 206 respectively. The glue coating roller 206 here is in tangential contact with the upper and lower thin metal plates to achieve uniform application of glue. The upper and lower layers of cut thin metal plates are moved to the left and aligned, and then the electric push rod 402 is started to press the thin metal plate at the top downward, so that the upper and lower thin metal plates are bonded to form a metal plate layer 101, and finally a plate-film composite material 1 is formed. After the plate-film composite material 1 is formed, subsequent continuous rolling and pressure-maintaining clamping are required.

[0071] See also Fig.11 and Fig.12 The continuous rolling device 5 includes a second outer frame 501, and a horizontally arranged third conveyor belt 502 is rotatably installed in the second outer frame 501, a plurality of third squeezing rollers 503 arranged on the inner side of the third conveyor belt 502 are rotatably installed in the second outer frame 501, and a plurality of fourth squeezing rollers 504 arranged above the third conveyor belt 502 are rotatably installed in the second outer frame 501. The plurality of third squeezing rollers 503 and the plurality of fourth squeezing rollers 504 are equidistantly arranged from right to left, and one fourth squeezing roller 504 is correspondingly arranged directly above one third squeezing roller 503, and the spacing between the upper and lower corresponding third squeezing rollers 503 and fourth squeezing rollers 504 gradually decreases from right to left.

[0072] During the implementation of this process, the continuous rolling device 5 is started and the staff places the bonded sheet-film composite material 1 on the right end of the third conveyor belt 502. Through the transportation of the third conveyor belt 502, the sheet-film composite material 1 gradually passes through a plurality of third squeezing rollers 503 and fourth squeezing rollers 504 correspondingly arranged up and down. Since the distance between the plurality of third squeezing rollers 503 and the fourth squeezing rollers 504 gradually decreases, the squeezing force exerted on the sheet-film composite material 1 when passing between the plurality of third squeezing rollers 503 and the fourth squeezing rollers 504 gradually increases. The continuous rolling device 5 can continuously realize the rolling operation of gradually pressurizing each sheet-film composite material 1, which is beneficial to improving the production efficiency during the implementation of this process.

[0073] Specifically, the working principle and operation method of the present invention are as follows:

[0074] The staff pre-opens uniformly distributed reinforcement holes 102 on the thin metal plate, and pre-forms balloons 104 on the composite film 103 that match the positions of the reinforcement holes 102, roughens the outer surface of the thin metal plate, and performs corona treatment on the outer surface of the composite film 103 to enhance the connection firmness of the thin metal plate, the composite film 103 and the glue, and applies the glue stably and evenly to the bonding surface of the composite film 103 through the glue coating roller 206 in the continuous bonding device. With the help of the rolling of the first squeezing roller 203 and the second squeezing roller 204, the composite film 103 is bonded to the thin metal plate, and the balloon 104 is squeezed into the corresponding reinforcement hole 102 with the help of the squeezing rod 2043, and the airflow in the air hole 2046 is coordinated to fill it. , so that the balloon 104 fits tightly with the inner end wall of the reinforcement hole 102 after being inflated, and the upper and lower thin metal plates are attached to the composite film 103, and then cut to equal sizes by the electric cutting knife 3, and the glue is evenly coated on the surfaces of the thin metal plates that are about to be attached to each other by the glue coating roller 206 arranged between the upper and lower thin metal plates. After the upper and lower thin metal plates are aligned, the electric gripper 404 is controlled to fall by the electric push rod 402 to squeeze and fit the upper and lower thin metal plates to finally form a plate-film composite material 1. After the plate-film composite material 1 is sent to the continuous rolling device 5, the roller pressure it is subjected to is gradually increased. After multiple continuous rollings, the plate-film composite material 1 remains in an extruded and clamped state and is sent to a constant temperature box to eliminate internal stress. It is subsequently taken out and cooled to room temperature for storage.

[0075] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A process for laminating a metal plate and an ETFE film, characterized in that: The following steps are involved: S1, evenly opening the reinforcement holes (102) on the outer surface of the metal plate layer (101), and making the reinforcement holes (102) evenly distributed in a matrix shape; S2, firmly attaching the PE polymer layer to the outer surface of the ETFE film by heat bonding, so as to form a composite film (103) with the ETFE film on one side and the PE polymer layer on the other side; S3, applying glue to the PE polymer layer in the composite film (103) by means of a glue coating roller (206); S4, laminating the composite film (103) on the outer surface of the metal plate layer (101) by rolling, and squeezing a part of the composite film (103) into the reinforcement hole (102) during the laminating process; S5, feeding the laminated metal plate layer (101) and the composite film (103) into a continuous rolling device (5), and gradually increasing the extrusion pressure on the metal plate layer (101) and the composite film (103), and after continuous extrusion for 4 to 6 times, applying a pressure of 0.15 to 0.2 MPa, and maintaining the pressure for 2 to 3 hours to form a plate-film composite material (1); S6, placing the sheet-membrane composite material (1) in a constant temperature box, keeping it warm at 60 to 80° C. for 2 to 3 hours, to eliminate the internal prestress; S7, take out and cool to room temperature, and store in batches; The inner space of the reinforcement hole (102) is configured as a truncated cone structure, and the inner diameter of one end of the reinforcement hole (102) close to the composite film (103) is 2 / 3 of the inner diameter of the other end thereof; The glue coating roller (206) comprises a glue coating roller body (2061) having a hollow structure inside, and a glue supply channel (2062) connected to the hollow structure is provided in a rotating shaft on one side of the glue coating roller body (2061), and the glue supply channel (2062) is connected to the hollow structure, and the cylindrical surface of the glue coating roller body (2061) is evenly provided with surrounding glue outlets (2063), and the glue outlets (2063) are connected to the hollow structure inside the glue coating roller body (2061). The length of the glue coating roller (2061) is consistent with the width of the composite film (103); bristles (2064) are fixedly attached to the cylindrical surface of the glue coating roller body (2061); when glue is applied to the composite film (103), the glue coating roller (206) is in a tangential state and fits the composite film (103); the rotation direction of the glue coating roller (206) is consistent with the movement direction of the composite film (103); and the outermost linear speed of the glue coating roller (206) is consistent with the movement speed of the composite film (103); The metal plate layer (101) is formed by bonding two thin metal plates together, the reinforcement hole (102) is opened through the single thin metal plate, the single layer of the composite film (103) is bonded to the single thin metal plate, and the two thin metal plates are bonded to each other, and the composite film (103) is pre-set with a balloon (104) that matches the position of the reinforcement hole (102); When the thin metal plate and the composite film (103) are bonded together, and when two layers of thin metal plates are bonded together, a continuous bonding device is required, and the continuous bonding device comprises a first outer frame (2), wherein a first conveyor belt (201) and a second conveyor belt (202) extending horizontally to the left are installed in the first outer frame (2), and the second conveyor belt (202) is located below the first conveyor belt (201), and the second conveyor belt (202) protrudes to the left outside the first conveyor belt (201), and the first outer frame (2) rotates inside the first outer frame (2). A first squeezing roller (203) is rotatably mounted on the inner side of the first conveyor belt (201) and on the right side of the second conveyor belt (202); a second squeezing roller (204) is rotatably mounted above the first squeezing roller (203) corresponding to the first conveyor belt (201) and below the first squeezing roller (203) corresponding to the second conveyor belt (202); and a first outer frame (2) is rotatably mounted on the upper right side of the first conveyor belt (201) and on the lower right side of the second conveyor belt (202). A guide roller (205) is provided on the guide roller (205), and an annular groove corresponding to the position of the balloon (104) on the composite film (103) is provided on the guide roller (205); a glue coating roller (206) is installed between the corresponding second squeezing roller (204) and the guide roller (205); a glue coating roller (206) arranged above the second conveyor belt (202) is also rotatably installed on the left side of the first conveyor belt (201); and a glue coating roller (206) arranged on the first conveyor belt (201) and the second conveyor belt (202) is fixedly installed in the first outer frame (2). An electric cutting knife (3), a transversely arranged electromagnetic slide rail (4) is fixedly mounted on the top of the first outer frame (2), and a first carrier frame (401) is fixedly mounted on the sliding end of the electromagnetic slide rail (4), a plurality of vertically arranged electric push rods (402) are fixedly mounted in the first carrier frame (401), and a second carrier frame (403) is fixedly mounted on the telescopic end below the electric push rod (402), and a plurality of evenly distributed electric grippers (404) are fixedly mounted on the bottom of the second carrier frame (403); The second squeezing roller (204) comprises a squeezing roller body (2041), and a plurality of longitudinally distributed insert tubes (2042) are provided inside the squeezing roller body (2041), a squeezing rod (2043) extending to the outside of the squeezing roller body (2041) is slidably inserted inside the insert tube (2042), a spring (2044) elastically supported at the end of the squeezing rod (2043) is installed inside the insert tube (2042), an air flow channel (2045) connected between the plurality of insert tubes (2042) is provided inside the squeezing roller body (2041), and the air flow channel (2045) passes through the rotating shaft of the squeezing roller body (2041) to the outside, and an air hole (2046) connected to the inside of the insert tube (2042) is provided at one end of the squeezing rod (2043) located outside the squeezing roller body (2041).

2. The laminating process of a metal plate and an ETFE film according to claim 1, characterized in that: Before applying the glue, the side of the metal plate layer (101) to be bonded is roughened, and the outer surface of the metal plate layer (101) after the roughening treatment has fine scratches evenly distributed in a horizontal and vertical manner. The side of the composite film (103) to be bonded is subjected to a corona treatment.

3. The laminating process of a metal plate and an ETFE film according to claim 1, characterized in that: The reinforcement holes (102) opened on the two layers of the thin metal plates are arranged in a staggered manner, and a groove (105) is opened on the outer surface of the thin metal plate on the side away from the composite film (103) and is sleeved on the outside of the reinforcement hole (102), and the height inside the groove (105) is set to 2 / 3 of the thickness of the double-layer composite film (103).

4. The laminating process of a metal plate and an ETFE film according to claim 1, characterized in that: The continuous rolling device (5) comprises a second outer frame (501), and a third conveyor belt (502) arranged horizontally is rotatably installed in the second outer frame (501), a plurality of third squeezing rollers (503) arranged on the inner side of the third conveyor belt (502) are rotatably installed in the second outer frame (501), and a plurality of fourth squeezing rollers (504) arranged above the third conveyor belt (502) are rotatably installed in the second outer frame (501), and the plurality of third squeezing rollers (503) and the plurality of fourth squeezing rollers (504) are rotatably installed in the second outer frame (501), and the plurality of third squeezing rollers (503) and the plurality of fourth squeezing rollers (504) are all arranged equidistantly from right to left, and one fourth squeezing roller (504) is correspondingly arranged directly above one third squeezing roller (503), and the spacing between the corresponding third squeezing rollers (503) and fourth squeezing rollers (504) decreases gradually from right to left.

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