On-line thermal laminating device and method for PET (Polyethylene Terephthalate) single material

Abstract

The invention provides a PET single material online thermal coating device and method, and belongs to the technical field of base material surface coating. Comprising three temperature control assemblies and a rack, and the three temperature control assemblies are all installed on the rack. The temperature control assemblies are arranged, oil in the three temperature control assemblies is circulated through an oil pump, a card protecting film on an unwinding roller is preheated by the temperature control assembly at the bottom and then heated to about 100 DEG C by the temperature control assembly on the left side, and at the moment, a glue layer at the bottom of the card protecting film is rapidly heated and softened; the temperature of the bottom adhesive layer of the card protecting film is maintained at about 80 DEG C, the bottom adhesive layer of the card protecting film is attached to the surface of the base material, then the pressing machine is driven to press the card protecting film downwards, the card protecting film is attached to the base material, and therefore a film body on the top of the card protecting film is prevented from being damaged, and the problem that PET on the surface of a plate is provided with orange peel patterns after film covering is conducted through an existing PET single material online thermal covering method is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of substrate surface laminating, and in particular to an online heat laminating device and method for a single PET material. Background Art

[0002] In order to protect the substrate, two methods are usually used: brushing paint and hot-adhesive card protection film. However, the paint is a mixture of various compounds, has an unpleasant odor, and even volatilizes toxic substances. The card protection film has a smooth PET layer on one side and an adhesive layer on the other side. The adhesive force of the adhesive layer is used to directly coat the entire card protection film on the substrate surface, which makes the substrate surface both beautiful and moisture-proof.

[0003] The substrate is protected by using a hot-adhesive card film. The adhesive layer is heated to make it adhere to the substrate. To ensure a good adhesion effect, the temperature of the adhesive layer should be heated to about 80°C. However, too high a temperature will damage the PET layer, making it difficult to have a good protective effect, and will cause the PET on the surface of the board to have orange peel texture after lamination.

[0004] Therefore, the present application provides a PET single material online heat laminating device and method to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a PET single material online hot lamination device and method. By setting a temperature control component and using an oil pump to circulate the oil in the three groups of temperature control components, the card protection film on the unwinding roller is preheated by the bottom temperature control component and then heated by the left temperature control component to reach its highest temperature of about 100°C. At this time, the glue layer at the bottom of the card protection film is quickly heated and softened, while the temperature of the top of the glue layer has not yet reached the softening temperature. When it moves to the temperature control component on the right, the temperature of the bottom glue layer of the card protection film is maintained at about 80°C, which is the most suitable temperature for gluing. At this time, the bottom glue layer of the card protection film is in contact with the surface of the substrate. Thereafter, the press is driven to make the cooling press plate press the card protection film down so that the card protection film is bonded to the substrate. At the same time, the cooling press plate can cool the top of the card protection film, thereby avoiding damage to the top film body of the card protection film, so as to solve the problem of orange peel texture on the surface of the PET sheet after lamination in the existing PET single material online hot lamination method.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A PET single-material online heat laminating device includes a temperature control assembly and a frame. The temperature control assembly is provided in three groups and is mounted on the frame. The temperature control assembly includes a rotating roller, the inner wall of which is sealed and fixedly mounted with an oil guide column. The oil guide column is provided with a spiral groove. The spiral grooves are provided in multiple groups and are evenly distributed on the oil guide column. A heating groove is provided on the inner wall of the central portion of the oil guide column. A left sealing mechanism is mounted on the left side of the heating groove, and a right sealing mechanism is mounted on the right side of the heating groove. The left sealing mechanism includes a first oil pipe, which is sealed and fixed to the inner wall of the left end of the heating tank. The right sealing mechanism includes a second oil pipe, which is sealed and fixed to the inner wall of the right end of the heating tank. The first oil pipe and the second oil pipe are both rotatably connected to the frame through bearings. The first oil pipe and the second oil pipe are respectively sealed and fixed through both ends of the rotating roller.

[0007] Optionally, a sealing ring 1 is fixedly installed at the inner port of the first oil pipe, and the first oil pipe is sealed and connected to the oil guide column through the sealing ring 1, a turbofan 1 is sleeved on the outer wall of the first oil pipe, and the turbofan 1 is fixedly connected to the left end wall of the oil guide column through bolts, an inner oil pipe is sealed and fixedly installed on the inner wall of the first oil pipe, the inner oil pipe is connected to the interior of the heating tank, an oil discharge channel is formed between the outer wall of the inner oil pipe and the inner wall of the first oil pipe, an oil inlet groove is opened on the outer wall of the first oil pipe located inside the rotating roller, the oil inlet groove is provided with a plurality of groups, and all are located at the outer end of the turbofan 1, and the plurality of groups of oil inlet grooves are all connected to the interior of the oil discharge channel.

[0008] Optionally, the outer end wall of the first oil pipe is rotatably connected to a sealing shell through a bearing, and a plurality of groups of sealing gaskets are installed on the inner wall of the sealing shell. The inner wall of the sealing shell is sealed and connected to the first oil pipe through the plurality of sealing gaskets. An oil inlet is provided on the left side of the sealing shell, and the oil inlet is communicated with the orifice of the inner oil pipe. An oil outlet is provided at the bottom of the sealing shell, and the oil outlet is communicated with the oil discharge channel.

[0009] Optionally, a sealing ring 2 is fixedly installed at the inner port of the second oil pipe, and the second oil pipe is sealed and connected to the heating groove through the sealing ring 2. The outer wall of the second oil pipe is sleeved with a turbofan 2, and the turbofan 2 is fixedly connected to the right end wall of the oil guide column by bolts. The rotation direction of the blades of the turbofan 2 is opposite to that of the turbofan 1. An oil outlet groove is provided on the outer wall of the second oil pipe located inside the rotating roller. There are multiple groups of oil outlet grooves, and they are all located at the outer end of the turbofan 2. A blocking rod is sealed and fixedly installed on the inner wall of the outer end of the second oil pipe. A U-shaped heating pipe is fixedly installed on the end wall of the blocking rod. The U-shaped heating pipe is located inside the heating groove. A conductive slip ring is fixedly installed on the outer end wall of the second oil pipe, and the conductive slip ring supplies power to the U-shaped heating pipe.

[0010] Optionally, the bottom of the frame is rotatably connected to multiple groups of conveying rollers, and the substrate is transported on the conveying rollers. The three groups of temperature control components are arranged in a triangle, and the bottom temperature control component is not provided with a conductive slip ring and a U-shaped heating tube. The middle inner wall of the frame is rotatably connected to a reeling roller.

[0011] Optionally, brackets are fixedly installed on both sides of the top of the frame, a slide groove is opened on the inner wall of the bracket, two groups of slide groove inner walls are slidably connected to the same support roller, a cylinder is fixedly installed on the bottom of the bracket, and the output end of the cylinder is fixedly connected to the end wall of the support roller.

[0012] and a tube connecting the discharging opening of the pump with a plug in the forward end of the crank case, said tube having a check valve in it at the pump end and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end.

[0013] Optionally, a method for using a PET single material online heat laminating device includes the following specific operating steps: S1: Install the unwinding roller with the card protection film on the frame, and drive the oil pump to input the oil in the oil tank through oil pipes 1 and 2 into the oil inlet on the left. The oil enters the heating tank through the inner oil pipe, and then enters the second oil pipe. Finally, it flows into the rotating roller through the oil outlet groove on the second oil pipe. Thereafter, it flows to the other side of the rotating roller through the spiral groove on the oil guide column, and then passes through the oil inlet groove into the oil discharge channel, and finally flows out from the oil outlet. Similarly, the oil in the oil tank forms a cycle in the three sets of temperature control components. S2: Power is supplied to the U-shaped heating tube through a conductive slip ring, so that the temperature of the oil in the left temperature control component is around 120°C and the temperature of the oil in the right temperature control component is around 80°C. The number of cooling fins is adjusted to keep the temperature of the oil in the bottom temperature control component around 20°C. When the oil temperatures in the three sets of temperature control components are stable, the card film on the unwinding roller is pulled so that it passes through the bottom temperature control component, the left temperature control component, and the right temperature control component in sequence. At the same time, the substrate is placed on multiple sets of conveyor rollers, and the bottom adhesive layer of the card film is bonded to the top of the substrate. S3: After the card film on the unwinding roller is preheated by the temperature control component at the bottom, it is heated by the temperature control component on the left to a maximum temperature of about 100°C. At this time, the adhesive layer at the bottom of the card film is quickly heated and softened, while the temperature of the top of the adhesive layer has not yet reached the softening temperature. When it moves to the temperature control component on the right, the temperature of the adhesive layer at the bottom of the card film is maintained at about 80°C, which is the most suitable temperature for gluing. At this time, the adhesive layer at the bottom of the card film is in contact with the surface of the substrate. After that, the press is driven to make the cooling plate press the card film down so that the card film is bonded to the substrate. At the same time, the cooling plate can cool the top of the card film to prevent the top film of the card film from being damaged.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] In the above scheme, by setting up temperature control components, the oil in the three groups of temperature control components is circulated by using an oil pump, and the U-shaped heating tube is powered by a conductive slip ring, so that the temperature of the oil in the left temperature control component is about 120°C, and the temperature of the oil in the right temperature control component is about 80°C, and the number of cooling fins is adjusted to make the temperature of the oil in the bottom temperature control component about 20°C, and the card film on the unwinding roller is pulled to pass through the three groups of temperature control components in turn. At the same time, the substrate is placed on multiple groups of conveyor rollers, and the bottom adhesive layer of the card film is attached to the top of the substrate. The card film on the unwinding roller is attached to the bottom adhesive layer of the substrate. After the temperature control component on the top is preheated, it is heated by the temperature control component on the left to reach its highest temperature of about 100℃. At this time, the glue layer at the bottom of the card protection film is quickly heated and softened, while the temperature of the top of the glue layer has not yet reached the softening temperature. When it moves to the temperature control component on the right, the temperature of the glue layer at the bottom of the card protection film is maintained at about 80℃, which is the most suitable temperature for gluing. At this time, the glue layer at the bottom of the card protection film is in contact with the surface of the substrate. After that, the press is driven to make the cooling plate press the card protection film down to make it adhere to the substrate. At the same time, the cooling plate can cool the top of the card protection film to prevent the top film of the card protection film from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a PET single material online heat laminating device and method; Figure 2 This is a schematic diagram of the installation structure of the frame and press; Figure 3 It is a schematic diagram of the installation structure of the conveyor roller and the frame; Figure 4 This is a schematic diagram of the connection structure of three sets of temperature control components; Figure 5This is a schematic diagram of the installation structure of the cooling fin and the oil pipe 4; Figure 6 Schematic diagram of the installation structure of the support roller; Figure 7 It is a structural diagram of the temperature control component; Figure 8 It is a left perspective view of the temperature control component; Figure 9 is a cross-sectional view of the temperature control component; Figure 10 This is a disassembled diagram of the temperature control component; Figure 11 It is a structural diagram of the left sealing mechanism; Figure 12 This is the disassembled diagram of the left sealing mechanism; Figure 13 is a cross-sectional view of the first oil pipe and the inner oil pipe; Figure 14 This is a schematic diagram of the installation structure of the right sealing mechanism and the oil guide column; Figure 15 It is a structural diagram of the right sealing mechanism.

[0018] Reference numerals: Temperature control assembly 100, rotating roller 110, oil guide column 111, spiral groove 112, heating groove 113, left sealing mechanism 120, first oil pipe 121, sealing ring 122, turbofan 1 123, oil inlet groove 124, inner oil pipe 125, oil discharge channel 126, sealing shell 130, sealing gasket 131, oil inlet 132, oil outlet 133, right sealing mechanism 140, second oil pipe 141, sealing ring 2 142, turbofan 2 143, oil outlet Groove 144, U-shaped heating tube 145, conductive slip ring 146, blocking rod 147, frame 200, conveying roller 210, substrate 220, bracket 230, slide 231, support roller 232, cylinder 233, unwinding roller 234, press 240, cooling platen 250, oil tank 260, oil pipeline one 261, oil pump 262, oil pipeline two 263, oil pipeline three 264, oil pipeline four 265, cooling fins 266, oil pipeline five 267.

[0019] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. Implementation Method

[0020] The following describes in detail the PET single-material online heat laminating device and method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0021] like Figures 1 to 15 As shown, the embodiment of the present invention provides a PET single material online heat laminating device and method, including a temperature control component 100 and a frame 200. The temperature control component 100 is provided with three groups and is all installed on the frame 200. The temperature control component 100 includes a rotating roller 110. An oil guide column 111 is sealed and fixedly installed on the inner wall of the rotating roller 110. A spiral groove 112 is provided on the oil guide column 111. The spiral groove 112 has the function of increasing the flow path of the oil and improving the heating effect on the rotating roller 110. There are multiple groups of spiral grooves 112, which are evenly distributed on the oil guide column 111. A heating groove 113 is provided on the inner wall of the middle portion of the oil guide column 111. A left sealing mechanism 120 is installed on the left side of the heating groove 113, and a right sealing mechanism 140 is installed on the right side of the heating groove 113. The left sealing mechanism 120 includes a first oil pipe 121, which is sealed and fixedly connected to the inner wall of the left end of the heating tank 113. The right sealing mechanism 140 includes a second oil pipe 141, which is sealed and fixedly connected to the inner wall of the right end of the heating tank 113. The first oil pipe 121 and the second oil pipe 141 are both rotatably connected to the frame 200 through bearings. The first oil pipe 121 and the second oil pipe 141 are respectively sealed and fixedly passed through both ends of the rotating roller 110.

[0022] As an implementation method in this embodiment, Figures 7 to 13As shown, a sealing ring 122 is fixedly installed at the inner end of the first oil pipe 121, and the first oil pipe 121 is sealed and connected to the oil guide column 111 through the sealing ring 122. A turbofan 123 is sleeved on the outer wall of the first oil pipe 121, and the turbofan 123 is fixedly connected to the left end wall of the oil guide column 111 through bolts. An inner oil pipe 125 is sealed and fixedly installed on the inner wall of the first oil pipe 121. The inner oil pipe 125 is communicated with the interior of the heating tank 113. An oil discharge channel 126 is formed between the outer wall of the inner oil pipe 125 and the inner wall of the first oil pipe 121. An oil inlet groove 124 is opened on the outer wall of the first oil pipe 121 inside the rotating roller 110. 4 is provided with multiple groups, and all are located at the outer end of the turbofan 123. The multiple groups of oil inlet grooves 124 are all connected to the inside of the oil discharge channel 126. The outer end wall of the first oil pipe 121 is rotatably connected to the sealing shell 130 through a bearing. The inner wall of the sealing shell 130 is installed with multiple groups of sealing gaskets 131. The sealing gaskets 131 have the functions of sealing and supporting. The inner wall of the sealing shell 130 is sealed with the first oil pipe 121 through the multiple groups of sealing gaskets 131. The left side of the sealing shell 130 is provided with an oil inlet 132, which is connected to the end of the inner oil pipe 125. The bottom of the sealing shell 130 is provided with an oil outlet 133, which is connected to the oil discharge channel 126.

[0023] In this embodiment, if Figure 6 、 Figure 14 and Figure 15As shown, a sealing ring 2 142 is fixedly installed at the inner port of the second oil pipe 141, and the second oil pipe 141 is sealed and connected to the heating groove 113 through the sealing ring 2 142. A turbofan 2 143 is sleeved on the outer wall of the second oil pipe 141. The turbofan 2 143 is fixedly connected to the right end wall of the oil guide column 111 through bolts. The rotation direction of the blades of the turbofan 2 143 is opposite to that of the turbofan 1 123. The turbofan 2 143 can accelerate the oil at the right end of the rotating roller 110 to be discharged into the spiral groove 112 on the oil guide column 111, and at the same time, it can delay the oil in the heating groove 113 from being discharged into the right end of the rotating roller 110, giving it enough heating time to reach the specified temperature. Similarly, since the rotation direction of the blades of the turbofan 123 is opposite to that of the turbofan 2 143, the turbofan 1 123 The rotation can accelerate the oil in the spiral groove 112 to enter the left end of the rotated roller 110, ensure the oil flow rate in the spiral groove 112, and ensure the surface temperature of the rotated roller 110. The outer wall of the second oil pipe 141 inside the rotated roller 110 is provided with an oil outlet groove 144. The oil outlet grooves 144 are provided with multiple groups and are all located at the outer end of the turbofan 2 143. The inner wall of the outer end of the second oil pipe 141 is sealed and fixedly installed with a blocking rod 147. The end wall of the blocking rod 147 is fixedly installed with a U-shaped heating pipe 145. The U-shaped heating pipe 145 is located inside the heating groove 113. The outer end wall of the second oil pipe 141 is fixedly installed with a conductive slip ring 146, and the conductive slip ring 146 supplies power to the U-shaped heating pipe 145. In the present invention, the oil pump 262 is driven to pump the oil in the oil tank 260 The oil is input into the oil inlet 132 on the left side through the oil delivery pipe 1 261 and the oil delivery pipe 2 263, and the oil enters the heating tank 113 through the inner oil pipe 125, and then enters the second oil pipe 141, and then flows into the rotating roller 110 through the oil outlet groove 144 on the second oil pipe 141, and then flows to the other side of the rotating roller 110 through the spiral groove 112 on the oil guide column 111, and then passes through the oil inlet groove 124 into the oil discharge channel 126, and finally flows out from the oil outlet 133. Similarly, the oil in the oil tank 260 forms a cycle in the three groups of temperature control components 100, and the U-shaped heating pipe 145 is powered by the conductive slip ring 146, so that the temperature of the oil in the left temperature control component 100 is about 120°C, and the right temperature control component 1 00 is about 80°C, and the number of cooling fins 266 is adjusted so that the temperature of the oil in the bottom temperature control component 100 is about 20°C. In particular, when the temperature of the oil in the three groups of temperature control components 100 is stable, the card protection film on the unwinding roller 234 is pulled to pass through the bottom temperature control component 100, the left temperature control component 100 and the right temperature control component 100 in turn. When the substrate 220 is bonded to the card protection film, the card protection film can drive the rotating roller 110 to rotate, thereby causing the oil guide column 111, turbofan 1 123 and turbofan 2 143 to rotate synchronously, thereby slowing down the flow rate of the oil in the heating tank 113 and increasing the flow rate in the spiral groove 112, so that it has a good heating effect on the colloid at the bottom of the card protection film.

[0024] As an implementation method in this embodiment, Figures 3 to 6 As shown, the bottom of the frame 200 is rotatably connected to multiple groups of conveying rollers 210, and the conveying rollers 210 transmit substrates 220. The substrate 220 has the same feeding speed as the unwinding roller 234. The three groups of temperature control components 100 are arranged in a triangle, and the bottom temperature control component 100 is not provided with a conductive slip ring 146 and a U-shaped heating tube 145. The inner wall of the middle of the frame 200 is rotatably connected to the unwinding roller 234. Brackets 230 are fixedly installed on both sides of the top of the frame 200. The frame 200 provides support for the brackets 230, and the inner wall of the brackets 230 is provided with a slide groove. 231, the inner walls of the two groups of slide grooves 231 are slidably connected to the same supporting roller 232, the slide grooves 231 provide a limit for the supporting roller 232, and a cylinder 233 is fixedly installed at the bottom of the bracket 230, and the output end of the cylinder 233 is fixedly connected to the end wall of the supporting roller 232. In the present invention, since the spacing between the two groups of temperature control components 100 at the top is relatively long, when the protective card film between the two groups of temperature control components 100 at the top falls, the two groups of cylinders 233 are driven to push the protective card film upward, thereby lifting the protective card film to prevent the adhesive layers from sticking to each other.

[0025] A press 240 is fixedly installed on the top of the end of the frame 200, and a cooling platen 250 is fixedly installed on the output end of the press 240. When the cooling platen 250 presses down the card protection film, it can cool the top film of the card protection film to prevent the top film of the card protection film from being damaged by high temperature. An oil tank 260 is fixedly installed on the side wall of the frame 200, and an oil pump 262 is fixedly installed on the top of the oil tank 260. An oil pipe 261 is sealed on the output port of the oil tank 260, and another pipe end of the oil pipe 261 is sealed and connected to the input port of the oil pump 262. The output port of the oil pump 262 is sealed and connected to the oil pipe 263. The second pipe 263 is sealed and connected to the oil inlet 132 on the leftmost temperature control component 100. The oil outlet 133 on the left temperature control component 100 is sealed and connected to the oil delivery pipe 3 264. The other end of the oil delivery pipe 3 264 is sealed and connected to the oil inlet 132 on the right temperature control component 100. The oil outlet 133 on the right temperature control component 100 is sealed and connected to the oil delivery pipe 4 265. The other end of the oil delivery pipe 4 265 is sealed and connected to the oil inlet 132 on the bottom temperature control component 100. A plurality of cooling fins 266 are installed on the oil delivery pipe 4 265. The cooling fins 266 can be oil delivery pipes. The oil at the front end of the oil pipe 265 is cooled by the fourth 265, and the oil at 80°C is cooled to 20°C. Similarly, cooling fins 266 can be added according to the required degree of cooling. The oil outlet 133 on the bottom temperature control component 100 is sealed and connected to the oil pipe 5 267. The other end of the oil pipe 5 267 is sealed and connected to the input port of the oil tank 260. In the present invention, the substrate 220 is placed on multiple groups of conveying rollers 210, and the bottom adhesive layer of the card protection film is attached to the top of the substrate 220. After the card protection film on the unwinding roller 234 is preheated by the bottom temperature control component 100, it is heated by the left temperature control component 100. 0 is heated to a maximum temperature of about 100°C. At this time, the adhesive layer at the bottom of the card protection film is quickly heated and softened, while the temperature of the top of the adhesive layer has not yet reached the softening temperature. When it moves to the temperature control component 100 on the right, the temperature of the adhesive layer at the bottom of the card protection film is maintained at about 80°C, which is the most suitable temperature for gluing. At this time, the adhesive layer at the bottom of the card protection film is in contact with the surface of the substrate 220. Thereafter, the press 240 is driven to cause the cooling plate 250 to press the card protection film downward so that the card protection film is adhered to the substrate 220. At the same time, the cooling plate 250 can cool the top of the card protection film, thereby preventing the top film of the card protection film from being damaged.

[0026] The operating steps of the technical solution provided by the present invention are as follows: The unwinding roller 234 equipped with the card protection film is installed on the frame 200, and the oil pump 262 is driven to input the oil in the oil tank 260 into the oil inlet 132 on the left through the oil pipe 1 261 and the oil pipe 2 263. The oil enters the heating tank 113 through the inner oil pipe 125, and then enters the second oil pipe 141. It flows into the rotating roller 110 through the oil outlet groove 144 on the second oil pipe 141, and then flows to the other side of the rotating roller 110 through the spiral groove 112 on the oil guide column 111, and then passes through the inner oil pipe 125. The oil flows through the oil inlet groove 124 into the oil discharge channel 126 and finally flows out from the oil outlet 133. Similarly, the oil in the oil tank 260 circulates in the three groups of temperature control components 100. The U-shaped heating tube 145 is powered by the conductive slip ring 146, so that the temperature of the oil in the left temperature control component 100 is about 120°C and the temperature of the oil in the right temperature control component 100 is about 80°C. The number of cooling fins 266 is adjusted to make the temperature of the oil in the bottom temperature control component 100 about 20°C. When the three groups After the oil temperature in the temperature control assembly 100 of the first group is stabilized, the card protection film on the unwinding roller 234 is pulled to pass through the temperature control assembly 100 at the bottom, the temperature control assembly 100 on the left, and the temperature control assembly 100 on the right in sequence. At the same time, the substrate 220 is placed on the multiple groups of conveying rollers 210, and the bottom adhesive layer of the card protection film is attached to the top of the substrate 220. After the card protection film on the unwinding roller 234 is preheated by the temperature control assembly 100 at the bottom, it is heated by the temperature control assembly 100 on the left to make its highest temperature reach about 100°C. At this time, the card protection film The glue layer at the bottom of the card film is quickly heated and softened, while the temperature of the top of the glue layer has not yet reached the softening temperature. When it moves to the temperature control component 100 on the right, the temperature of the glue layer at the bottom of the card film is maintained at around 80°C, which is the most suitable temperature for gluing. At this time, the glue layer at the bottom of the card film is in contact with the surface of the substrate 220. Thereafter, the press 240 is driven to cause the cooling plate 250 to press down the card film so that the card film is bonded to the substrate 220. At the same time, the cooling plate 250 can cool the top of the card film, thereby preventing the top film of the card film from being damaged.

[0027] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A PET single material online heat laminating device, comprising a temperature control component (100) and a frame (200), wherein the temperature control component (100) is provided with three groups and all are mounted on the frame (200), characterized in that: The temperature control assembly (100) includes a rotating roller (110), an oil guide column (111) is fixedly and sealed on the inner wall of the rotating roller (110), a spiral groove (112) is provided on the oil guide column (111), and the spiral grooves (112) are provided in multiple groups and are evenly distributed on the oil guide column (111), a heating groove (113) is provided on the inner wall of the middle portion of the oil guide column (111), a left sealing mechanism (120) is installed on the left side of the heating groove (113), and a right sealing mechanism (140) is installed on the right side of the heating groove (113); The left sealing mechanism (120) includes a first oil pipe (121), which is sealed and fixedly connected to the inner wall of the left end of the heating tank (113). The right sealing mechanism (140) includes a second oil pipe (141), which is sealed and fixedly connected to the inner wall of the right end of the heating tank (113). The first oil pipe (121) and the second oil pipe (141) are both rotatably connected to the frame (200) through bearings. The first oil pipe (121) and the second oil pipe (141) are respectively sealed and fixedly passed through both ends of the rotating roller (110).

2. A PET single material online thermal laminating device according to claim 1, characterized in that: A sealing ring 1 (122) is fixedly installed at the inner end of the first oil pipe (121), and the first oil pipe (121) is sealed and connected to the oil guide column (111) through the sealing ring 1 (122). A turbofan 1 (123) is sleeved on the outer wall of the first oil pipe (121), and the turbofan 1 (123) is fixedly connected to the left end wall of the oil guide column (111) through bolts. An inner oil pipe (125) is sealed and fixedly installed on the inner wall of the first oil pipe (121). The tube (125) is connected to the interior of the heating tank (113), and an oil discharge channel (126) is formed between the outer wall of the inner oil tube (125) and the inner wall of the first oil tube (121). An oil inlet groove (124) is provided on the outer wall of the first oil tube (121) located inside the rotating roller (110). The oil inlet grooves (124) are provided in multiple groups and are all located at the outer end of the turbofan (123). The multiple groups of oil inlet grooves (124) are connected to the interior of the oil discharge channel (126).

3. A PET single material online heat laminating device according to claim 2, characterized in that: The outer end wall of the first oil pipe (121) is rotatably connected to a sealing shell (130) via a bearing. The inner wall of the sealing shell (130) is installed with multiple sets of sealing gaskets (131). The inner wall of the sealing shell (130) is sealed and connected to the first oil pipe (121) via the multiple sets of sealing gaskets (131). An oil inlet (132) is provided on the left side of the sealing shell (130). The oil inlet (132) is communicated with the pipe end of the inner oil pipe (125). An oil outlet (133) is provided at the bottom of the sealing shell (130). The oil outlet (133) is communicated with the oil discharge channel (126).

4. The PET single material online heat laminating device according to claim 3, characterized in that: A sealing ring 2 (142) is fixedly installed at the inner end of the second oil pipe (141), and the second oil pipe (141) is sealed and connected to the heating tank (113) through the sealing ring 2 (142). The outer wall of the second oil pipe (141) is sleeved with a turbofan 2 (143). The turbofan 2 (143) is fixedly connected to the right end wall of the oil guide column (111) through bolts. The rotation direction of the blades of the turbofan 2 (143) is opposite to that of the turbofan 1 (123). The outer wall of the second oil pipe (141) located inside the rotating roller (110) is provided with a There is an oil outlet groove (144), and the oil outlet groove (144) is provided with multiple groups, and all are located at the outer end of the second turbofan (143). The inner wall of the outer end of the second oil pipe (141) is sealed and fixedly installed with a blocking rod (147), and the end wall of the blocking rod (147) is fixedly installed with a U-shaped heating pipe (145). The U-shaped heating pipe (145) is located inside the heating groove (113). The outer end wall of the second oil pipe (141) is fixedly installed with a conductive slip ring (146), and the conductive slip ring (146) supplies power to the U-shaped heating pipe (145).

5. The PET single material online heat laminating device according to claim 4, characterized in that: The bottom of the frame (200) is rotatably connected to a plurality of groups of conveying rollers (210), on which a substrate (220) is transported. The three groups of temperature control components (100) are arranged in a triangular shape, and the bottom temperature control component (100) is not provided with a conductive slip ring (146) and a U-shaped heating tube (145). The inner wall of the middle portion of the frame (200) is rotatably connected to a reeling roller (234).

6. The PET single material online heat laminating device according to claim 5, characterized in that: Brackets (230) are fixedly mounted on both sides of the top of the frame (200), a slide groove (231) is provided on the inner wall of the bracket (230), and two groups of inner walls of the slide grooves (231) are slidably connected to the same support roller (232), and a cylinder (233) is fixedly mounted on the bottom of the bracket (230), and the output end of the cylinder (233) is fixedly connected to the end wall of the support roller (232).

7. The PET single material online heat laminating device according to claim 6, characterized in that: A press (240) is fixedly mounted on the top of the end of the frame (200), a cooling platen (250) is fixedly mounted on the output end of the press (240), an oil tank (260) is fixedly mounted on the side wall of the frame (200), an oil pump (262) is fixedly mounted on the top of the oil tank (260), an oil delivery pipe (261) is sealedly mounted on the output port of the oil tank (260), another pipe end of the oil delivery pipe (261) is sealedly connected to the input port of the oil pump (262), an oil delivery pipe (263) is sealedly connected to the output port of the oil pump (262), and the oil delivery pipe (263) is sealedly connected to the oil inlet (132) on the leftmost temperature control component (100). The oil outlet (133) is sealed and connected to the oil delivery pipe three (264), and the other pipe end of the oil delivery pipe three (264) is sealed and connected to the oil inlet (132) on the right temperature control component (100). The oil outlet (133) on the right temperature control component (100) is sealed and connected to the oil delivery pipe four (265), and the other pipe end of the oil delivery pipe four (265) is sealed and connected to the oil inlet (132) on the bottom temperature control component (100). A plurality of groups of cooling fins (266) are installed on the oil delivery pipe four (265). The oil outlet (133) on the bottom temperature control component (100) is sealed and connected to the oil delivery pipe five (267), and the other pipe end of the oil delivery pipe five (267) is sealed and connected to the input port of the oil tank (260).

8. The method for using the PET single material online heat laminating device according to claim 7, characterized in that: The specific steps are as follows: S1: The unwinding roller (234) equipped with the card film is installed on the frame (200), and the oil pump (262) is driven to input the oil in the oil tank (260) into the oil inlet (132) on the left through the oil pipe 1 (261) and the oil pipe 2 (263). The oil enters the heating tank (113) through the inner oil pipe (125), and then enters the second oil pipe (141). The oil flows into the rotating roller (110) through the oil outlet groove (144) on the second oil pipe (141). Thereafter, the oil flows to the other side of the rotating roller (110) through the spiral groove (112) on the oil guide column (111), and then passes through the oil inlet groove (124) into the oil discharge channel (126), and finally flows out from the oil outlet (133). Similarly, the oil in the oil tank (260) forms a cycle in the three sets of temperature control components (100); S2: Power is supplied to the U-shaped heating tube (145) through the conductive slip ring (146), so that the temperature of the oil in the left temperature control component (100) is about 120°C, and the temperature of the oil in the right temperature control component (100) is about 80°C, and the number of cooling fins (266) is adjusted so that the temperature of the oil in the bottom temperature control component (100) is about 20°C. When the temperature of the oil in the three groups of temperature control components (100) is stable, the card film on the unwinding roller (234) is pulled so that it passes through the bottom temperature control component (100), the left temperature control component (100) and the right temperature control component (100) in turn. At the same time, the substrate (220) is placed on the multiple groups of conveying rollers (210), and the bottom adhesive layer of the card film is bonded to the top of the substrate (220); S3: After the card film on the unwinding roller (234) is preheated by the temperature control component (100) at the bottom, it is heated by the temperature control component (100) on the left to make its highest temperature reach about 100°C. At this time, the adhesive layer at the bottom of the card film is quickly heated and softened, while the temperature of the top of the adhesive layer has not yet reached the softening temperature. When it moves to the temperature control component (100) on the right, the temperature of the adhesive layer at the bottom of the card film is maintained at about 80°C, which is the most suitable temperature for gluing. At this time, the adhesive layer at the bottom of the card film is in contact with the surface of the substrate (220). Thereafter, the press (240) is driven to make the cooling plate (250) press down the card film so that the card film is bonded to the substrate (220). At the same time, the cooling plate (250) can cool the top of the card film, thereby preventing the top film of the card film from being damaged.

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