Film compounding two-roller laminating machine and corresponding film laminating method thereof

Abstract

The invention relates to the technical field of hot melting laminating, in particular to a film compounding two-roller laminating machine and a corresponding laminating method thereof. The film compounding two-roller laminating machine comprises a discharging assembly, a guide roller assembly, a first compression roller assembly, a second compression roller assembly and a laminating assembly, wherein an adhesive film roll and a PVC (polyvinyl chloride) film roll are placed on the discharging assembly; the guide roller assembly is used for guiding a PVC film and the adhesive film; the first compression roller assembly is used for laminating the PVC film and the adhesive film to form a composite film; the heating assembly is used for supplying heat to the second compression roller assembly. The laminating roller is connected with the heating assembly, so that the laminating roller is heated to melt the adhesive film, and the adhesive film is adhered to one side of the PVC film under the action of the pressing roller. And the second compression roller assembly melts the adhesive film on the composite film again, so that the composite film is adhered to the plate, two films can be laminated on the plate by one piece of equipment, the structure is compact, the cost is saved, and the processing efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of hot melt laminating, and in particular to a film composite two-roll laminating machine and a corresponding laminating method. Background Art

[0002] In the production process of composite materials, a layer of adhesive film is often applied on the surface of the composite material board by hot melt to improve the adhesion of the material board. The existing laminating equipment unwinds the film roll to lay the film on the surface of the substrate, and then makes the film and the substrate pass through the heating roller synchronously, so as to laminate the film on the surface of the substrate. If another layer of PVC film is needed, another device needs to be used to apply the film to the substrate that has been applied with the film again, which is costly. Moreover, applying the film twice is easy to wrinkle or damage the previously applied film, resulting in poor lamination quality and low work efficiency. Summary of the invention

[0003] In order to solve the technical defects mentioned in the above background technology, the purpose of the present invention is to provide a film composite two-roll laminating machine and a corresponding laminating method.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A film composite two-roll laminating machine, comprising a feeding assembly on which a film roll and a PVC film roll are placed, a guide roller assembly for guiding the PVC film and the film, a first pressing roller assembly for laminating the PVC film and the film to form a composite film, a second pressing roller assembly for laminating the composite film on a plate, and a heating assembly for simultaneously supplying heat to the first pressing roller assembly and the second pressing roller assembly; the first pressing roller assembly comprises a laminating roller and a laminating roller, a gap being provided between the laminating roller and the laminating roller; the film is wound around the laminating roller facing the circumference of the laminating roller; the PVC film is located between the film and the laminating roller, the laminating roller, the PVC film and the film are extruded and connected so that the PVC film and the film are bonded; the laminating roller is connected to the heating assembly so that the laminating roller generates heat to melt the film.

[0006] By adopting the above technical solution, the laminating roller melts the adhesive film for the first time, and under the action of the pressing roller, the adhesive film is adhered to one side of the PVC film to form a composite film. The second pressing roller assembly melts the adhesive film on the composite film again, so that the composite film is adhered to the plate. During the operation, two heatings are performed to achieve that one device can laminate two films on the plate, with a compact structure, cost savings, and significantly improved processing efficiency.

[0007] Furthermore, the heating assembly includes a heating oil tank. The laminating roller is provided with an open first channel along the length direction, and the first channel is connected to the heating oil tank. The adhesive film is heated and melted by hot oil, so that the adhesive film is evenly coated on the PVC film, thereby improving the quality of the lamination. Moreover, the heating temperature of the oil rises steadily, making the temperature more balanced, and the heating temperature is higher, which is suitable for different regions, has stronger equipment compatibility, and has higher adhesive film pasting quality.

[0008] Furthermore, one end of the laminating roller is provided with an oil pipe joint, one end of which is exposed outside the laminating roller and connected to the heating oil tank, which can improve the efficiency of installation and removal. The other end of the oil pipe joint is slidably provided at one end of the first channel, which is convenient for adjusting the space in the first channel and the heating area to adapt to different sizes of adhesive films and save costs.

[0009] Furthermore, a closed seat is provided at the other end of the laminating roller, one end of the closed seat is slidably arranged inside the other end of the first channel, and the other end of the closed seat protrudes from the laminating roller. Both ends can adjust the heating area in the first channel, which is convenient for centering the heating area and improving the compatibility of the equipment. A stepped mounting portion is provided at the other end of the closed seat, which is convenient for assembly with other structures. The first pressure roller assembly also includes a first drive unit and a first transmission member, and the first transmission member is arranged at the mounting portion, and the avoidance arrangement has a more compact structure. The first drive unit is connected to the first transmission member to drive the laminating roller to rotate axially.

[0010] Furthermore, the first pressing roller assembly also includes at least one group of adjustment units. The adjustment unit includes an adjustment motor, a pull rod and a connection block. The connection block is fixedly connected to the end of the pressing roller, one end of the pull rod is fixedly connected to the connection block, the length direction of the pull rod is perpendicular to the length direction of the pressing roller, and the other end of the pull rod is connected to the output shaft of the adjustment motor, so as to facilitate the adjustment of the distance between the pressing roller and the laminating roller. Moreover, during the operation, the pressing roller can also be fixed to keep the pressing roller and the laminating roller relatively stable, so as to improve the uniformity and quality of coating the adhesive film on the PVC film.

[0011] Furthermore, the second pressing roller assembly includes a first pressing roller and a second pressing roller, and the first pressing roller and the second pressing roller are arranged at intervals along the conveying direction of the plate. The first pressing roller and the second pressing roller are both provided with a second channel, and the second channel is connected to the heating component to melt the adhesive film on the composite film again, so as to facilitate the composite film to be coated on the plate.

[0012] Furthermore, the laminating roller and the pressing roller are arranged horizontally, and the heating assembly is arranged above one end of the laminating roller. The first pressing roller and the second pressing roller are arranged below the laminating roller and the pressing roller, and the structure is compact, which reduces the occupied space. The laminating roller is located above the central axis between the first pressing roller and the second pressing roller, which is convenient for straightening the composite film and preventing wrinkles during lamination.

[0013] A film laminating method of a film composite two-roll laminating machine comprises the following steps:

[0014] S1, the heating assembly heats the laminating roller and the second pressing roller assembly to a set temperature;

[0015] S2, the PVC film and the adhesive film are synchronously conveyed to between the laminating roller and the pressing roller, the adhesive film is wound around the laminating roller, the laminating roller heats and melts the adhesive film, and the pressing roller synchronously squeezes the PVC film and the adhesive film so that the PVC film and the adhesive film are adhered to form a composite film;

[0016] S3. The composite film is transported between the second pressure roller assembly and the conveying assembly. Synchronously, the plate is transported to the laminating position with the composite film through the conveying assembly. The second pressure roller assembly heats the composite film and presses the composite film to make it fit the surface of the plate. During the lamination process, the plate moves in a set direction through the conveying assembly and drives the composite film to move together to continuously laminarize.

[0017] Furthermore, in step S3, the heating temperature of the laminating roller is lower than the heating temperature of the second pressing roller assembly, thereby improving processing quality and saving energy consumption.

[0018] Furthermore, in step S3, the rotation speed of the laminating roller is lower than the conveying speed of the conveying assembly. During the laminating process, the conveying speed of the plate is higher than the conveying speed of the composite film, and the surface of the plate will give the composite film a pulling force, so that the composite film always remains straight during the laminating process, effectively preventing the laminating film from wrinkling, and the laminating quality is higher, which improves the efficiency of the operation.

[0019] In summary, the beneficial effects of the present invention are:

[0020] In the present invention, the adhesive film is melted for the first time by the laminating roller, and under the action of the pressing roller, the adhesive film is adhered to one side of the PVC film to form a composite film, and the second pressing roller assembly melts the adhesive film on the composite film again, so that the composite film is adhered to the plate. During the operation, heating is performed twice to achieve that one device can coat two films on the plate, the structure is compact, cost is saved, and the processing efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a film composite two-roll laminating machine of the present invention.

[0022] Figure 2 It is a side view of an embodiment of the film composite two-roll laminating machine of the present invention.

[0023] Figure 3 It is another side view of an embodiment of the film composite two-roll laminating machine of the present invention.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the film composite two-roll laminating machine of the present invention in a production state.

[0025] Figure 5 It is a schematic structural diagram of an embodiment of a laminating roller of a film composite two-roll laminating machine of the present invention.

[0026] Figure 6 It is a schematic cross-sectional structure diagram of an embodiment of a laminating roller of a film composite two-roll laminating machine of the present invention.

[0027] Figure 7 It is a structural schematic diagram of an embodiment of the first pressing roller assembly of the film composite two-roller laminating machine of the present invention.

[0028] Figure 8 It is a structural schematic diagram of an embodiment of the installation of a lifting component, a fixing component and a conveying component of a film composite two-roller laminating machine of the present invention.

[0029] Fig. 9 It is a side view of an embodiment of the installation of the lifting component, the fixing component and the conveying component of the film composite two-roller laminating machine of the present invention.

[0030] Fig.10 It is a schematic cross-sectional structure diagram of an embodiment of the first pressing roller of the film composite two-roller laminating machine of the present invention.

[0031] Fig.11 It is a structural schematic diagram of an embodiment of a fixing assembly of a film composite two-roll laminating machine of the present invention.

[0032] Fig.12 It is a structural schematic diagram of an embodiment of a film discharge unit of a film composite two-roller laminating machine of the present invention.

[0033] Fig.13 It is a structural schematic diagram of an embodiment of a material collecting assembly of a film composite two-roll laminating machine of the present invention.

[0034] Fig.14 It is a schematic flow chart of an embodiment of a film laminating method of a film composite two-roll laminating machine of the present invention.

[0035] Description of reference numerals in the figures:

[0036] 1. Film composite two-roll laminating machine; 2. Feeding assembly; 21. Film feeding unit; 211. Film inflation shaft; 212. First support seat; 2121. Seat body; 2122. Slide bar; 2123. Locking piece; 213. Second support seat; 214. Hand wheel; 215. Gear set; 216. Feeding motor; 22. PVC film feeding unit; 3. Guide roller assembly; 31. Paper spreading roller; 4. First pressing roller assembly; 41. Pressing roller; 42. Laminating roller; 421. a channel; 422, oil pipe joint; 423, closing seat; 424, mounting portion; 4241, supporting plane; 43, first transmission member; 44, adjusting unit; 441, adjusting motor; 442, pull rod; 443, connecting block; 444, slide rail; 5, second pressure roller assembly; 51, first pressure roller; 511, second channel; 512, adjusting seat; 52, second pressure roller; 6, heating assembly; 61, heating oil tank; 62, adapter; 7, conveying assembly; 71, Conveying motor; 72, conveying roller; 73, driven wheel; 74, driving wheel; 8, lifting assembly; 81, first fixed plate; 82, second fixed plate; 83, lifting drive unit; 831, lifting motor; 832, driving gear; 833, driven gear; 84, transmission unit; 841, first push rod; 842, second push rod; 843, first commutator; 844, second commutator; 845, transmission rod; 85, induction sheet; 86, first travel switch; 8 7. Second travel switch; 9. Fixed assembly; 91. Extending motor; 92. Ejector rod; 93. Pressing block; 931. Inner hole; 94. Guide block; 10. Material collecting assembly; 101. Material collecting roller; 102. First support plate; 103. Second support plate; 104. Third commutator; 105. Material collecting motor; 106. Second gear; 107. Third gear; 11. Composite film; 111. PVC film; 112. Adhesive film; 113. Protective film; 12. Plate material. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0038] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0039] In the description of the present invention, if there are words such as "several", it means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there are descriptions of first, second, and third, they are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] The following is combined with Figure 1-14 , the embodiments of the present invention are described in further detail.

[0041] A film composite two-roll laminating machine 1, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes a feeding assembly 2 on which a film roll and a PVC film roll are placed, a guide roller assembly 3 for guiding the PVC film 111 and the film 112, a first pressing roller assembly 4 for laminating the PVC film 111 and the film 112 to form a composite film 11, a second pressing roller assembly 5 for laminating the composite film 11 on the plate 12, and a heating assembly 6 for simultaneously supplying heat to the first pressing roller assembly 4 and the second pressing roller assembly 5. The first pressing roller assembly 4 includes a laminating roller 41 and a laminating roller 42, and a gap is provided between the laminating roller 41 and the laminating roller 42. The film 112 is wound around the circumferential side of the laminating roller 42 facing the laminating roller 41. The PVC film 111 is located between the film 112 and the laminating roller 41, and the laminating roller 41, the laminating roller 42, the PVC film 111, and the film 112 are squeezed and connected to make the PVC film 111 and the film 112 bonded. The laminating roller 42 is connected to the heating assembly 6 so that the laminating roller 42 generates heat to melt the adhesive film 112 .

[0042] The laminating roller 42 melts the adhesive film 112 for the first time. Under the action of the pressing roller 41, the adhesive film 112 is adhered to one side of the PVC film 111 to form a composite film 11. The second pressing roller assembly 5 melts the adhesive film 112 on the composite film 11 again, so that the composite film 11 is adhered to the plate 12. During the operation, two heatings are performed to achieve that one device can coat two films on the plate 12. The structure is compact, cost is saved, and the processing efficiency is significantly improved.

[0043] In this embodiment, please refer to Figure 2 , Figure 4 , Figure 6 The heating assembly 6 includes a heating oil tank 61, a plurality of oil pipes and a plurality of adapters 62. The laminating roller 42 is provided with an open first channel 421 along the length direction, and the first channel 421 is connected to the heating oil tank 61. The adhesive film 112 is heated and melted by hot oil, so that the adhesive film 112 is evenly coated on the PVC film 111, thereby improving the quality of the lamination. Moreover, the heating temperature of the oil rises stably, making the temperature more balanced, and the heating temperature is higher, which is suitable for different regions, has stronger equipment compatibility, and has higher pasting quality of the adhesive film 112. Among them, the oil pipe is not drawn in the figure.

[0044] Please refer to Figure 5 , Figure 6 One end of the laminating roller 42 is provided with an oil pipe joint 422, one end of which is exposed outside the laminating roller 42 and connected to the heating oil tank 61, which can improve the efficiency of installation and disassembly. Specifically, one end of the adapter 62 is fixed to the oil pipe joint 422 through a bearing seat, and the other end of the adapter 62 is connected to one end of the oil pipe, and the other end of the oil pipe is fixed to the heating oil tank 61. The heating oil tank 61 transports hot oil to the first channel 421.

[0045] The other end of the oil pipe joint 422 is slidably disposed at one end of the first channel 421, so as to adjust the space in the first channel 421 and the heating area to adapt to the adhesive films 112 of different sizes and save costs.

[0046] The other end of the laminating roller 42 is provided with a closed seat 423, one end of which is slidably arranged inside the other end of the first channel 421, and the other end of the closed seat 423 protrudes from the laminating roller 42, and both ends can adjust the heating area in the first channel 421, so as to facilitate the central setting of the heating area and improve the compatibility of the equipment. The other end of the closed seat 423 is provided with a stepped mounting portion 424, so as to facilitate assembly with other structures.

[0047] The sealing seat 423 and the mounting portion 424 are both cylindrical structures. The mounting portion 424 is arranged in a three-step shape, and its diameter gradually decreases in the direction away from the laminating roller 42. A supporting plane 4241 is arranged at the end of the mounting portion 424 to facilitate the clamping of the first transmission member 43.

[0048] Please refer to Figure 2 , Figure 7 The first pressing roller assembly 4 further includes a first driving unit and a first transmission member 43, the first transmission member 43 is arranged on the mounting portion 424, and the avoidance arrangement makes the structure more compact. The first driving unit is connected to the first transmission member 43 to drive the laminating roller 42 to rotate along the axial direction.

[0049] Specifically, the first driving unit includes a rotating motor, a first gear and a first chain. The output shaft of the rotating motor is fixedly connected to the first gear, and the first gear is connected to the first transmission member 43 through a first chain. The first transmission member 43 can be set as a gear structure. The rotating motor drives the first transmission member 43 to rotate, and the first transmission member 43 drives the laminating roller 42 to rotate. The laminating roller 42 drives the composite film 11 to move toward the second pressure roller assembly 5 under the action of friction. Among them, the first driving unit is not drawn in the figure.

[0050] In this embodiment, please refer to Figure 2 , Figure 7 , the first pressing roller assembly 4 also includes at least one group of adjustment units 44. Specifically, the adjustment units 44 are arranged in two groups, and one group of adjustment units 44 is arranged at both ends of the laminating roller 41. The adjustment unit 44 includes an adjustment motor 441, a pull rod 442 and a connecting block 443. The connecting block 443 is fixedly connected to the end of the laminating roller 41, one end of the pull rod 442 is fixedly connected to the connecting block 443, the length direction of the pull rod 442 is perpendicular to the length direction of the laminating roller 41, and the other end of the pull rod 442 is connected to the output shaft of the adjustment motor 441, so as to facilitate the adjustment of the distance between the laminating roller 41 and the bonding roller 42. Moreover, during the operation, the laminating roller 41 can also be fixed to keep the laminating roller 41 and the bonding roller 42 relatively stable and pressed more tightly, so as to improve the uniformity and quality of coating the adhesive film 112 on the PVC film 111.

[0051] The diameter of the laminating roller 41 is smaller than that of the laminating roller 42, and the central axes of the two are located on the same horizontal line, which can save space and reduce costs. The adjusting motor 441 and the pull rod 442 are both arranged on the side of the laminating roller 41 away from the laminating roller 42, and are arranged in a avoided position to save space. Of course, the adjusting motor 441 can also be set as a cylinder structure.

[0052] In order to improve the stability of operation, a slide rail 444 is provided on both the upper and lower sides of the connection block 443 to ensure its horizontal movement and improve the stability of operation. A mounting groove is provided at one end of the connection block 443 connected to the pull rod 442. The end of the pull rod 442 passes through the connection block 443 and is located in the mounting groove, and is fixed in the mounting groove by a nut. The installation and disassembly is convenient, and it is also convenient for maintenance and replacement.

[0053] In this embodiment, please refer to Figure 2 , Figure 4 , Figure 8 The second pressing roller assembly 5 includes a first pressing roller 51 and a second pressing roller 52, which are arranged at intervals along the conveying direction of the plate 12. The first pressing roller 51 and the second pressing roller 52 are both provided with a second channel 511, which is connected to the heating assembly 6 to melt the adhesive film 112 on the composite film 11 again, so as to facilitate the composite film 11 to be coated on the plate 12.

[0054] The laminating roller 42 and the pressing roller 41 are arranged horizontally, and a heating assembly 6 is arranged above one end of the laminating roller 42. A first pressing roller 51 and a second pressing roller 52 are arranged below the laminating roller 42 and the pressing roller 41, and the structure is compact to reduce the occupied space. The laminating roller 42 is located above the central axis between the first pressing roller 51 and the second pressing roller 52, so as to facilitate the straightening of the composite film 11 and prevent wrinkles during lamination.

[0055] The first pressing roller 51 and the second pressing roller 52 are connected to the heating oil tank 61 of the heating assembly 6 through the adapter 62 and the corresponding oil pipes. The oil pipe joint 422, the adapter 62 and the heating oil tank 61 are connected through the oil pipe. The oil in the roller expands due to heat and contracts due to cold. The overflowed oil will flow into the heating oil tank 61. Conversely, the oil in the heating oil tank 61 will be filled into the corresponding roller.

[0056] The structure of the first pressing roller 51 is the same as that of the second pressing roller 52. The first pressing roller 51 is taken as an example for detailed description.

[0057] Please refer to Figure 8 , Fig.10 The first pressing roller 51 is provided with a second passage 511 for heat transfer oil along its length direction. The first pressing roller 51 includes a roller body and an adjustment seat 512 arranged at the end of the roller body. The roller body is provided with a second passage 511. At least one adjustment seat 512 is provided, one end of the adjustment seat 512 is sealed and connected to the second passage 511, and the other end of the adjustment seat 512 protrudes from the roller body and is connected to the heating component 6. The adjustment seat 512 is provided with a connecting groove connecting the second passage 511 and the heating component 6. The heating length of the roller body can be adjusted by adjusting the buried depth of the adjustment seat 512, thereby saving costs, reducing energy consumption, and improving the compatibility of the equipment. Preferably, an adjustment seat 512 is provided at both ends of the first pressing roller 51, so that the adhesive film 112 can always be set in the center.

[0058] Please refer to Figure 4 , Fig. 9The film composite two-roller laminating machine 1 also includes a conveying assembly 7. The conveying assembly 7 includes a conveying motor 71 and two conveying rollers 72. The conveying motor 71 is arranged below the frame, and a conveying roller 72 is arranged below the first pressure roller 51 and the second pressure roller 52 at a corresponding interval. The conveying roller 72 and the first pressure roller 51 and the second pressure roller 52 are used for the pasting operation of the adhesive film 112 and the plate 12. The ends of one end of the two conveying rollers 72 are each provided with a driven wheel 73, and the output shaft of the conveying motor 71 is provided with a driving wheel 74, and the driving wheel 74 is connected to the two driven wheels 73 through a chain belt transmission. The conveying motor 71 is used to drive the conveying roller 72 to rotate, so that the conveying roller 72 drives the plate 12 thereon to move.

[0059] The diameters of the conveying roller 72, the first pressing roller 51, the second pressing roller 52, and the laminating roller 42 are set to be the same. The rotation speed of the conveying roller 72 is greater than that of the laminating roller 42. During the laminating process, the conveying speed of the sheet 12 is higher than that of the composite film 11. The surface of the sheet 12 will give a pulling force to the composite film 11, so that the composite film 11 always remains straight during the laminating process, effectively preventing the laminating from wrinkling, and the laminating quality is higher, which improves the efficiency of the operation.

[0060] Please refer to Figure 2 , Figure 8 , Fig. 9 The film composite two-roll laminating machine 1 also includes a lifting assembly 8, four sets of fixing assemblies 9 and a collecting assembly 10. The discharge assembly 2 includes a film discharge unit 21 and a PVC film discharge unit 22. The film discharge unit 21 and the PVC film discharge unit 22 are both arranged above the frame, and the structures of the two are arranged in the same manner.

[0061] Please refer to Fig.12The film discharge unit 21 includes a film inflation shaft 211, a first support seat 212, a second support seat 213, a hand wheel 214, a gear set 215 and a discharge motor 216. The first support seat 212 is arranged at one end of the frame, and the second support seat 213 is arranged at the other end of the frame. The first support seat 212 and the second support seat 213 are arranged in the same structure. The first support seat 212 includes a seat body 2121, two slide bars 2122 and a locking member 2123. The seat body 2121 is arranged as a U-shaped structure, and the two slide bars 2122 are fixed in the U-shaped groove of the seat body 2121. The length direction of the slide bars 2122 is arranged in the same direction as the length direction of the film inflation shaft 211. The lower end of the locking member 2123 is slidably arranged on the two slide bars 2122, and the end of the film inflation shaft 211 is fixed on the locking member 2123. A connecting rod is provided on the side of the hand wheel 214, and the end of the connecting rod is fixedly connected to the side of the locking member 2123. By turning the hand wheel 214, the connecting rod can push the two locking members 2123 to slide along the corresponding sliding rods 2122 to adjust the position of the film inflation shaft 211 so that the film roll thereon is centered, which can play a role in correcting deviation and improve work efficiency.

[0062] The other end of the film inflation shaft 211 is connected to the gear set 215, and the output shaft of the discharge motor 216 is connected to the gear set 215, which is used to drive the film inflation shaft 211 to drive the film roll to rotate, making the film roll delivery smoother and ensuring the straightness of the film 112 and the PVC film 111.

[0063] Please refer to Figure 8 , Fig. 9 The lifting assembly 8 includes a first fixed plate 81, a second fixed plate 82, a lifting drive unit 83 and a transmission unit 84. The first fixed plate 81 is slidably disposed at one end of the frame, and the second fixed plate 82 is slidably disposed at the other end of the frame, and the first fixed plate 81 and the second fixed plate 82 are used to fix the second pressing roller assembly 5. The output shaft of the lifting drive unit 83 is connected to the transmission unit 84, and the transmission unit 84 is fixedly connected to the first fixed plate 81 and the second fixed plate 82, so as to facilitate the adjustment of the height of the second pressing roller assembly 5 according to the actual thickness of the plate 12, improve the processing efficiency and compatibility, and make it more convenient to use.

[0064] The lifting assembly 8 also includes a sensing sheet 85, a first travel switch 86 and a second travel switch 87. The side of the first fixed plate 81 is provided with a sensing sheet 85. The first travel switch 86 and the second travel switch 87 are arranged on the frame at intervals along the height direction, and the sensing sheet 85 is located between the first travel switch 86 and the second travel switch 87 to improve the safety performance of the equipment. The first travel switch 86 is used to limit the maximum height of the second pressure roller assembly 5, and the second travel switch 87 is used to limit the minimum height of the second pressure roller assembly 5.

[0065] In this embodiment, please refer to Figure 8, Fig. 9 , Fig.11 A set of fixing components 9 are correspondingly arranged at both ends of the first pressing roller 51 and the second pressing roller 52. The fixing component 9 includes a jacking motor 91, a push rod 92 and a pressing block 93. The output shaft of the jacking motor 91 is fixedly connected to one end of the push rod 92, and the other end of the push rod 92 is fixedly connected to the pressing block 93. The pressing block 93 is used to press and fix the corresponding end of the first pressing roller 51 or the second pressing roller 52 to prevent the first pressing roller 51 and the second pressing roller 52 from shaking during the film pressing process, thereby improving the stability of pressing and the quality of pasting the adhesive film 112.

[0066] The pressing block 93 is provided with an inner hole 931 for fitting the end of the first pressing roller 51 or the second pressing roller 52, and a fixing groove is provided above the inner hole 931. The other end of the push rod 92 is fixed in the fixing groove, and the structure is compact and easy to install. Specifically, the protruding part of the adjustment column passes through the corresponding first fixing plate 81 or the second fixing plate 82 and is fixed in the inner hole 931, which can reduce the size of the pressing block 93 and the space occupied.

[0067] The fixing assembly 9 also includes two guide blocks 94. A guide block 94 is provided on both sides of the pressing block 93 in the height direction. The pressing block 93 is slidably connected between the two guide blocks 94 to improve the stability during the adjustment process, maintain the verticality of the up and down adjustment, and prevent the first pressing roller 51 and the second pressing roller 52 from being misaligned during the adjustment process to affect the pasting quality of the adhesive film 112. Specifically, a protruding stopper is provided on the upper end of each guide block 94 to prevent the pressing block 93 from separating from the guide block 94.

[0068] When the height of the second pressure roller assembly 5 is adjusted, the extension motor 91 drives the push rod 92 to apply a downward force so that the pressing block 93 presses and fixes the corresponding first pressure roller 51 or the second pressure roller 52 to prevent the first pressure roller 51 and the second pressure roller 52 from shaking up and down under the force during the pasting process of the adhesive film 112, thereby affecting the pasting quality of the adhesive film 112.

[0069] In this embodiment, please refer to Figure 1 , Fig.13The material collecting assembly 10 is arranged at the discharge side of the frame, and includes a material collecting roller 101, a first support plate 102, a second support plate 103, a third commutator 104, a material collecting motor 105, a second gear 106, a connecting piece and a third gear 107. The first support plate 102 and the second support plate 103 are fixed on the frame. The material collecting roller 101 is rotatably arranged on the first support plate 102 and the second support plate 103. One end of the material collecting roller 101 is fixedly connected to the second gear 106. A third gear 107 is arranged below the second gear 106, and the third gear 107 is connected to one side of the third commutator 104. The gear surfaces of the third gear 107 and the second gear 106 are arranged vertically, and the third gear 107 is connected to the second gear 106 through a connecting piece. Among them, the structure of the connecting piece is not drawn in the figure, and can be set as a chain structure or a belt structure. The collecting motor 105 is located below the third commutator 104, and the output shaft of the collecting motor 105 is vertically arranged and connected to the third commutator 104. The third commutator 104 is used to convert the vertical force of the collecting motor 105 into a horizontal driving force to drive the collecting roller 101 to rotate and collect the waste film material, which has a compact structure, reasonably utilizes space, and reduces the volume of the equipment.

[0070] The unloading assembly 2 places the rubber film 112 and the PVC film 111 respectively through two air expansion shafts, then pulls out the film, passes through the paper spreading roller 31 of the guide roller assembly 3, and then introduces the film between the pressing roller 41 and the laminating roller 42 after winding the film. The regulating motor 441 of the telescopic pressing roller 41 is adjusted so that it and the laminating roller 42 with oil heating tightly press the rubber film 112 and the PVC film 111, and the rotation of the pressing roller 41 and the conveying round roller 72 drives the lamination of the rubber film 112 and the PVC film 111. Among them, the paper spreading roller 31 is used to prevent the rubber film 112 and the PVC film 111 from wrinkling, thereby improving the quality of the composite film 11. There is a large amount of heating oil in the laminating roller 42, the first pressing roller 51 and the second pressing roller 52, and a heating pipe is provided to pass through the heating oil. When the heating pipe is energized, the oil is heated, and the oil temperature can be monitored by a temperature sensor. The control panel on the side can adjust the oil temperature autonomously. Heating with oil makes the lamination more firm.

[0071] During the processing, the heating oil tank 61 supplies oil to the laminating roller 42, the first pressing roller 51, and the second pressing roller 52 respectively. The laminating roller 42 heats and melts the adhesive film 112, so that the adhesive film 112 is attached to the PVC film 111. During the rotation of the laminating roller 42, the composite film 11 can be driven to be transported toward the position of the second pressing roller assembly 5. The sheet 12 is transported by two conveying round rollers 72. The composite film 11 is heated and melted by the first pressing roller 51 and the second pressing roller 52, and can be attached to the sheet 12. The protective film 113 on the PVC film 111 is collected by the collecting roller 101.

[0072] A film laminating method of a film composite two-roll laminating machine 1, such as Figure 4 , Fig.14 As shown, it includes the following steps:

[0073] S1, the heating assembly 6 heats the laminating roller 42 and the second pressing roller assembly 5 to a set temperature;

[0074] S2, the PVC film 111 and the adhesive film 112 are synchronously conveyed to between the laminating roller 42 and the pressing roller 41, the adhesive film 112 is wound around the laminating roller 42, the laminating roller 42 heats and melts the adhesive film 112, and the pressing roller 41 synchronously squeezes the PVC film 111 and the adhesive film 112 so that the PVC film 111 and the adhesive film 112 are adhered to form a composite film 11;

[0075] S3, the composite film 11 is transported between the second pressure roller assembly 5 and the conveying assembly 7, and synchronously, the plate 12 is transported to the laminating position with the composite film 11 through the conveying assembly 7, and the second pressure roller assembly 5 heats and presses the composite film 11 to make it fit on the surface of the plate 12. During the lamination process, the plate 12 moves in a set direction through the conveying assembly 7 and drives the composite film 11 to move together to continuously laminarize.

[0076] Specifically, in step S1, the heating assembly 6 delivers oil to the laminating roller 42, the first pressing roller 51, and the second pressing roller 52 through different oil pipes, and then heats the oil to the set temperature through the heating pipes inside each. The temperature can be controlled by monitoring the oil temperature through a temperature sensor. The control panel on the side can adjust the oil temperature autonomously, which is convenient to operate and improves the control accuracy and efficiency.

[0077] In step S2, the rotation of the laminating roller 42 drives the PVC film 111 and the adhesive film 112 to be conveyed synchronously, and the adhesive film 112 laminated on the surface of the laminating roller 42 is melted by the internal oil heat temperature, and the melted adhesive film 112 is adhered to the PVC film 111 under the extrusion of the laminating roller 41 and the laminating roller 42 to form a composite film 11. Among them, the laminating roller 42, the laminating roller 41, the first pressing roller 51, and the second pressing roller 52 are all rubber rollers.

[0078] In step S3, the sheet 12 is conveyed by the conveying roller 72 below it, and the sheet 12 and the composite film 11 are melted under the action of the first pressing roller 51 and the second pressing roller 52, and then the composite film 11 is pasted on the sheet 12. The sheet 12 pulls the composite film 11 to move, so that the sheet 12 and the composite film 11 can be conveyed synchronously, so that the laminating operation can be continued. The cooperation of the first pressing roller 51 and the second pressing roller 52 makes the laminating effect better and the pasting more stable.

[0079] In step S3, the heating temperature of the laminating roller 42 is lower than the heating temperature of the second pressing roller assembly 5, so as to improve the processing quality and save energy.

[0080] Specifically, the difference between the heating temperature of the laminating roller 42 and the heating temperature of the second pressing roller assembly 5 is controlled within 30°. In summer, the heating temperature range of the laminating roller 42 and the second pressing roller assembly 5 is 80°-100°, and in winter, it varies depending on the local ambient temperature, generally around 130°. The lower the ambient temperature, the higher the heating temperature of the laminating roller 42 and the second pressing roller assembly 5, and the fluctuation does not exceed 20°.

[0081] In step S3, the rotation speed of the laminating roller 42 is lower than the conveying speed of the conveying assembly 7. During the laminating process, the conveying speed of the sheet 12 is higher than the conveying speed of the composite film 11. The surface of the sheet 12 will give a pulling force to the composite film 11, so that the composite film 11 always remains straight during the laminating process, effectively preventing the laminating from wrinkling, improving the laminating quality, and improving the efficiency of the operation.

[0082] Specifically, the speed ratio of the composite film 11 to the plate 12 is set to 24:26. ​​The conveying speed of the composite film 11 is a little slower than that of the plate 12, and the moving speed of the plate 12 can be set according to actual needs. In other words, the ratio of the rotation speed of the laminating roller 42 to the rotation speed of the conveying assembly 7 is 24:26. ​​The size of the laminating roller 42 and the size of the conveying roller 72 in the conveying assembly 7 can be set to be the same, which is convenient for adjusting the conveying speed between the two and improving the work efficiency.

[0083] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A film composite two-roll laminating machine (1), characterized in that: The invention comprises a feeding assembly (2) on which a film roll and a PVC film roll are placed, a guide roller assembly (3) for guiding the PVC film (111) and the film roll (112), a first pressing roller assembly (4) for laminating the PVC film (111) and the film roll (112) to form a composite film (11), a second pressing roller assembly (5) for laminating the composite film (11) on a plate (12), and a heating assembly (6) for simultaneously supplying heat to the first pressing roller assembly (4) and the second pressing roller assembly (5); the first pressing roller assembly (4) comprises a pressing roller (41) and a laminating roller (42); the pressing roller assembly (41) comprises a pressing roller (42) and a laminating roller (42); the pressing roller assembly (41) comprises a pressing roller (42) and a laminating roller (42); the pressing roller assembly (42) comprises a pressing roller (41) and a laminating roller (42); the pressing roller assembly (4 ... A gap is provided between the roller (41) and the laminating roller (42); the adhesive film (112) is wound around the circumferential side of the laminating roller (42) facing the pressing roller (41); the PVC film (111) is located between the adhesive film (112) and the pressing roller (41); the pressing roller (41), the laminating roller (42), the PVC film (111), and the adhesive film (112) are extruded and connected so that the PVC film (111) and the adhesive film (112) are bonded; the laminating roller (42) is connected to the heating component (6) so that the laminating roller (42) generates heat to melt the adhesive film (112).

2. The film composite two-roll laminating machine (1) according to claim 1, characterized in that: The heating assembly (6) comprises a heating oil tank (61); the laminating roller (42) is provided with an open first channel (421) along the length direction, and the first channel (421) is connected to the heating oil tank (61).

3. The film composite two-roll laminating machine (1) according to claim 2, characterized in that: An oil pipe joint (422) is provided at one end of the laminating roller (42), one end of the oil pipe joint (422) is exposed outside the laminating roller (42) and is connected to the heating oil tank (61), and the other end of the oil pipe joint (422) is slidably provided at one end of the first channel (421).

4. The film composite two-roll laminating machine (1) according to claim 2, characterized in that: The other end of the laminating roller (42) is provided with a closed seat (423), one end of the closed seat (423) is slidably arranged inside the other end of the first channel (421), and the other end of the closed seat (423) protrudes from the laminating roller (42); the other end of the closed seat (423) is provided with a stepped mounting portion (424); the first pressing roller assembly (4) also includes a first driving unit and a first transmission member (43), the first transmission member (43) is arranged on the mounting portion (424), and the first driving unit is connected to the first transmission member (43) to drive the laminating roller (42) to rotate along the axial direction.

5. The film composite two-roll laminating machine (1) according to claim 4, characterized in that: The first pressing roller assembly (4) also includes at least one group of adjusting units (44), and the adjusting unit (44) includes an adjusting motor (441), a pull rod (442) and a connecting block (443); the connecting block (443) is fixedly connected to the end of the pressing roller (41), one end of the pull rod (442) is fixedly connected to the connecting block (443), the length direction of the pull rod (442) is perpendicular to the length direction of the pressing roller (41), and the other end of the pull rod (442) is connected to the output shaft of the adjusting motor (441).

6. The film composite two-roll laminating machine (1) according to claim 1, characterized in that: The second pressing roller assembly (5) comprises a first pressing roller (51) and a second pressing roller (52), wherein the first pressing roller (51) and the second pressing roller (52) are arranged at intervals along the conveying direction of the plate (12); a second channel (511) is provided in each of the first pressing roller (51) and the second pressing roller (52), and the second channel (511) is connected to the heating assembly (6).

7. The film composite two-roll laminating machine (1) according to claim 6, characterized in that: The laminating roller (42) and the pressing roller (41) are arranged horizontally, and the heating component (6) is arranged above one end of the laminating roller (42); the first pressing roller (51) and the second pressing roller (52) are arranged below the laminating roller (42) and the pressing roller (41); the laminating roller (42) is located above the central axis between the first pressing roller (51) and the second pressing roller (52).

8. A film laminating method using a film composite two-roll laminating machine (1), characterized in that: The following steps are involved: S1, the heating component (6) heats the laminating roller (42) and the second pressing roller component (5) to a set temperature; S2, the PVC film (111) and the adhesive film (112) are synchronously conveyed between the laminating roller (42) and the pressing roller (41), the adhesive film (112) is wound around the laminating roller (42), the laminating roller (42) heats and melts the adhesive film (112), and the pressing roller (41) synchronously squeezes the PVC film (111) and the adhesive film (112) so that the PVC film (111) and the adhesive film (112) are adhered together to form a composite film (11); S3, the composite film (11) is transported between the second pressure roller assembly (5) and the conveying assembly (7), and synchronously, the plate (12) is transported to the laminating position with the composite film (11) through the conveying assembly (7), and the second pressure roller assembly (5) heats the composite film (11) and presses the composite film (11) to make it adhere to the surface of the plate (12). During the laminating process, the plate (12) moves in a set direction through the conveying assembly (7) and drives the composite film (11) to move together to continuously laminarize.

9. The film laminating method of the film composite two-roll laminating machine (1) according to claim 8, characterized in that: In step S3, the heating temperature of the laminating roller (42) is lower than the heating temperature of the second pressing roller assembly (5).

10. The film composite two-roll laminating machine (1) and the corresponding laminating method according to claim 8, characterized in that: In step S3, the rotation speed of the laminating roller (42) is lower than the conveying speed of the conveying assembly (7).

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