Multifunctional coated paper production device

Abstract

The invention discloses a multifunctional coated paper production device, which comprises four unreeling mechanisms, two unreeling mechanisms are a first PET film unreeling assembly and a second PET film unreeling assembly, and the rest two unreeling mechanisms are paper unreeling assemblies; the number of the winding mechanisms is two; the four co-extrusion mechanisms are respectively a first co-extrusion assembly, a second co-extrusion assembly, a third co-extrusion assembly and a fourth co-extrusion assembly. According to the multifunctional coated paper production device, the four unwinding mechanisms, the two winding mechanisms, the two extrusion mechanisms and the two co-extrusion mechanisms are arranged, so that PE films can be conveniently coated at different positions of paper, and the PE films and the PET films are connected in a co-extrusion mode to produce different types of composite coated paper, multiple production devices are not needed, and therefore the production cost is greatly reduced, and the production efficiency is improved. And meanwhile, the production occupied space is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of composite paper laminating production, in particular to a multifunctional laminating paper production device. Background Art

[0002] Laminated composite paper, also known as laminated paper, is a paper-plastic composite material. It is formed by evenly coating a plastic sample (such as PE sample) on the surface of paper through a specific process (such as cast film coating). This composite material combines the characteristics of paper and plastic, and has certain stiffness, waterproof, oil-proof and other excellent properties. Therefore, it is widely used in various packaging fields.

[0003] Usually, composite laminated paper is composed of a paper layer, a PET layer and a PE layer. The PET layer has multiple properties such as high strength, transparency and barrier, while the PE layer has multiple properties such as waterproof, moisture-proof, oil-proof and heat-sealing. The excellent properties of composite laminated paper are achieved through the combination of paper layer, PET layer and PE layer.

[0004] Different types of composite coated papers have different layer structures. In the prior art, different production equipment is required to produce different types of coated papers, which not only increases the production cost of the enterprise, but also multiple sets of production equipment occupy a large amount of production space.

[0005] Therefore, it is necessary to improve the coating paper production device in the prior art. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide a multifunctional coated paper production device which reduces the occupied space and reduces the production cost.

[0007] In order to achieve the above technical effects, the technical solution of the present invention is: a multifunctional coated paper production device, comprising: There are four unwinding mechanisms, two of which are a first PET film unwinding assembly and a second PET film unwinding assembly for unwinding PET film, and the remaining two are paper unwinding assemblies for unwinding paper; Two reeling mechanisms are provided for reeling in the co-extruded composite paper, and the two reeling mechanisms correspond one to one with the two paper unwinding assemblies; Four extrusion mechanisms and four co-extrusion mechanisms correspond to each other one by one, the extrusion mechanism is used to extrude PE film to the corresponding co-extrusion mechanism, the four co-extrusion mechanisms are respectively a first co-extrusion component, a second co-extrusion component, a third co-extrusion component and a fourth co-extrusion component which are sequentially arranged along the paper transmission path, the first co-extrusion component is arranged between the paper unwinding component and the first PET film unwinding component to co-extrude and connect the first side of the paper, the PE film and the PET film, the second co-extrusion component and the third co-extrusion component are sequentially arranged between the first PET film unwinding component and the second PET film unwinding component to first co-extrude and connect the PET film on the first side of the paper with the PE film, and then co-extrude and connect the second side of the paper, the PE film and the PET film, the fourth co-extrusion component is arranged between the second PET film unwinding component and the winding mechanism to co-extrude and connect the PET film on the second side of the paper with the PE film.

[0008] Preferably, in order to further ensure the compactness of the device structure and reduce the occupied space, the projections of the two paper unwinding assemblies, the four co-extrusion mechanisms and the two winding mechanisms on the horizontal plane are closely distributed along a first direction, and the first direction is a straight line direction.

[0009] Preferably, in order to facilitate the maintenance of the extrusion mechanism and the co-extrusion mechanism, the four extrusion mechanisms each include a downward die head, a screw conveyor connected to the die head, a silo for conveying materials to the screw conveyor, and a translation unit for driving the screw conveyor to translate along the second direction parallel to the second direction, and the second direction is a horizontal direction perpendicular to the first direction.

[0010] Preferably, in order to achieve co-extrusion connection between film layers, the four co-extrusion mechanisms each include a co-extrusion frame and a first clamping roller and a second clamping roller each rotating around its own axis on the co-extrusion frame, the first clamping roller and the second clamping roller being arranged adjacent to each other and axially parallel to the second direction, and at least one of the first clamping roller and the second clamping roller is a cooling roller.

[0011] Preferably, in order to facilitate the adjustment of the paper transmission path so that any side of the paper can be stacked and connected with the PE film, in at least one of the four co-extrusion mechanisms, two second clamping rollers are provided and are arranged on both sides of the first clamping roller, and the co-extrusion frame is connected to a moving unit, and the moving unit drives the co-extrusion frame to translate along the second direction so that the die head of the extrusion unit corresponding to the co-extrusion mechanism is facing downward between the first clamping roller and one of the second clamping rollers.

[0012] Preferably, in order to facilitate the transmission of paper, among the four co-extrusion mechanisms, the co-extrusion frame of the fourth co-extrusion assembly is connected to a moving unit.

[0013] Preferably, in order to facilitate the transmission of paper and to facilitate the connection of the extruded PE film and the unrolled PET film, the four extrusion mechanisms are the first extrusion assembly, the second extrusion assembly, the third extrusion assembly and the fourth extrusion assembly, which correspond to the first co-extrusion assembly, the second co-extrusion assembly, the third co-extrusion assembly and the fourth co-extrusion assembly respectively, the first extrusion assembly and the second extrusion assembly also include a heightening frame, the translation units of the first extrusion assembly and the second extrusion assembly are both arranged on the heightening frame, the heightening frame and the ground are enclosed to form a channel for material to pass through, the translation units of the third extrusion assembly and the fourth extrusion assembly are adjacent to the ground, and among the four extrusion mechanisms, the translation units are all located below the screw conveyor.

[0014] Preferably, in order to guide the transmission path of the paper, a material guiding assembly is arranged between the paper unwinding assembly and the first co-extrusion assembly, between two adjacent co-extrusion mechanisms, and between the fourth co-extrusion assembly and the winding mechanism. The material guiding assembly is used to guide the transmission path of the paper. The material guiding assembly includes a material guiding frame and guide rollers distributed along the vertical direction and axially parallel to the second direction, and the guide rollers rotate around their own axis.

[0015] Preferably, in order to maintain stable transmission of paper, in the material guide assembly, at least one guide roller is connected to a sliding frame, and the sliding frame is connected to the material guide frame through an elastic member and slides on the material guide frame to adjust the transmission tension of the paper.

[0016] Preferably, in order to adjust the transmission tension of the paper, an adjustment unit is provided between the elastic member and the material guide frame to adjust the elastic force of the elastic member on the sliding frame.

[0017] To sum up, compared with the prior art, the multifunctional laminated paper production device of the present invention is convenient for laminating PE film at different positions of paper and co-extruded with PE film and PET film to produce different types of composite laminated paper without the need for multiple production equipment, thereby greatly reducing production costs and reducing production space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 yes Figure 1 A top view of Figure 4 It is a structural schematic diagram of the material guide assembly of the present invention; Figure 5 yes Figure 4 Explosion diagram of Figure 6 It is a schematic diagram of the connection structure of two paper unwinding components of the present invention; Figure 7 It is a structural schematic diagram of the paper unwinding assembly of the present invention; Figure 8 yes Figure 7 Explosion diagram of Fig. 9 It is a schematic structural diagram of a first PET film unwinding assembly and a second PET film unwinding assembly of the present invention; Fig.10 It is a structural schematic diagram of the winding mechanism of the present invention; Fig.11 It is a schematic diagram of the structure of the first extrusion assembly and the second extrusion assembly of the present invention; Fig.12 is a schematic structural diagram of the first extrusion assembly and the second extrusion assembly from another perspective of the present invention; Fig.13 yes Fig.12 Explosion diagram of Fig.14 It is a schematic structural diagram of the third extrusion assembly and the fourth extrusion assembly of the present invention; Fig.15 is a schematic structural diagram of a fourth co-extrusion assembly of the present invention; Fig.16 is a schematic structural diagram of the fourth co-extrusion component of the present invention from another perspective; Fig.17 It is a schematic structural diagram of the first co-extrusion component, the second co-extrusion component and the third co-extrusion component of the present invention; Fig.18 yes Fig.17 A front view of Fig.19 yes Fig.17 Explosion diagram of Fig. 20 yes Figure 1 Schematic diagram of some structures; Fig.21 It is a simplified diagram of producing two kinds of composite paper according to the present invention; Fig. 22 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig.23 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig.24 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig.25 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig.26 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig. 27 It is a schematic diagram of the structure of a composite paper produced by the present invention; Fig.28 It is a schematic diagram of the structure of a composite paper produced by the present invention; In the figure: 1. unwinding mechanism; 11. paper unwinding assembly; 12. first PET film unwinding assembly; 13. second PET film unwinding assembly; 101. unwinding frame; 102. unwinding motor; 103. unwinding roller; 104. unwinding slot; 1041. unwinding ball; 105. unwinding bolt; 106. unwinding nut; 107. unwinding connecting groove; 108. unwinding bracket; 2. rewinding mechanism; 21. rewinding frame; 22. rewinding motor; 23. rewinding roller; 24. rewinding slot; 25. Winding bolt; 26. Winding nut; 27. Winding connection groove; 3. Extrusion mechanism; 31. First extrusion assembly; 32. Second extrusion assembly; 33. Third extrusion assembly; 34. Fourth extrusion assembly; 301. Die head; 302. Screw conveyor; 303. Silo; 304. Translation unit; 3041. Translation motor; 3042. Translation gear; 3043. Translation rack; 3044. Translation fixing plate; 305. Heightening frame; 3051. Heightening Pillar; 306, extrusion guide rail; 307, extrusion slide; 308, extrusion slide seat; 4, co-extrusion mechanism; 41, first co-extrusion component; 42, second co-extrusion component; 43, third co-extrusion component; 44, fourth co-extrusion component; 401, co-extrusion frame; 4011, co-extrusion riser; 4012, co-extrusion support foot; 4013, co-extrusion connecting frame; 402, first clamping roller; 4021, first roller seat; 403, second clamping roller; 4031, second roller seat; 4032, first Two co-extrusion sliders; 4033, second cam shaft; 404, moving unit; 4041, moving oil cylinder; 4042, moving slider; 4043, moving slide rail; 405, pressure roller; 4051, pressure seat; 4052, pressure co-extrusion slider; 4053, pressure cam shaft; 406, co-extrusion slide rail; 407, co-extrusion push-pull oil cylinder; 4071, oil cylinder mounting seat; 408, guide roller; 409, co-extrusion connecting rod; 4091, strip mouth; 5, material guide assembly; 51, guide Material rack; 52, guide roller; 53, sliding rack; 54, elastic member; 541, pressure sensor; 55, adjustment unit; 551, adjustment motor; 552, adjustment screw; 553, adjustment screw sleeve; 554, adjustment plate; 555, fixed plate; 56, guide rod; 6, composite paper; 61, paper layer; 62, first PE layer; 63, first PET layer; 64, second PE layer; 65, third PE layer; 66, second PET layer; 67, fourth PE layer. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] like Figure 1-Figure 21 As shown, the multifunctional coated paper production device of the present invention comprises: The unwinding mechanism 1 is provided with four unwinding mechanisms 1, two of which are a first PET film unwinding assembly 12 and a second PET film unwinding assembly 13 for unwinding PET film, and the remaining two are paper unwinding assemblies 11 for unwinding paper; A reeling mechanism 2, two of which are used to reel in the co-extruded composite paper, and the two reeling mechanisms 2 correspond one to one to the two paper unwinding assemblies 11; There are four extrusion mechanisms 3 and four co-extrusion mechanisms 4 corresponding to each other. The extrusion mechanism 3 is used to extrude PE film to the corresponding co-extrusion mechanism 4. The four co-extrusion mechanisms 4 are respectively a first co-extrusion component 41, a second co-extrusion component 42, a third co-extrusion component 43 and a fourth co-extrusion component 44 which are arranged in sequence along the paper transmission path. The first co-extrusion component 41 is arranged between the paper unwinding component 11 and the first PET film unwinding component 12 to co-extrude and connect the first side of the paper, the PE film and the PET film. The second co-extrusion component 42 and the third co-extrusion component 43 are arranged in sequence between the first PET film unwinding component 12 and the second PET film unwinding component 13 to first co-extrude and connect the PET film on the first side of the paper with the PE film, and then co-extrude and connect the second side of the paper, the PE film and the PET film. The fourth co-extrusion component 44 is arranged between the second PET film unwinding component 13 and the winding mechanism 2 to co-extrude and connect the PET film on the second side of the paper with the PE film.

[0021] The laminated paper production device of the present invention has a plurality of different operating modes. Under different operating modes, different types of laminated papers can be produced, that is, a set of equipment can produce a variety of laminated papers. Compared with the prior art that produces different types of laminated papers requires different production equipment, the present invention can significantly reduce production costs and reduce the space occupied by production.

[0022] In order to conveniently distinguish the four extrusion mechanisms 3, the four extrusion mechanisms 3 are respectively a first extrusion component 31, a second extrusion component 32, a third extrusion component 33 and a fourth extrusion component 34. The first extrusion component 31, the second extrusion component 32, the third extrusion component 33 and the fourth extrusion component 34 correspond to the first co-extrusion component 41, the second co-extrusion component 42, the third co-extrusion component 43 and the fourth co-extrusion component 44 respectively. The extrusion mechanism 3 is used to extrude the PE film downward to the co-extrusion connecting part of the co-extrusion mechanism 4.

[0023] Specifically, Fig.21As shown on the left, after one of the paper unwinding components 11 unwinds the paper, it passes through the first coextrusion component 41, and at the same time, the first extrusion component 31 and the first PET film unwinding component 12 respectively output the PE film and the PET film to the coextrusion part of the first coextrusion component 41, so that one side of the paper layer 61 is sequentially laminated and connected with the first PE layer 62 and the first PET layer 63, and then passes through the second coextrusion component 42, and the second extrusion component 32 extrude the PE film to the coextrusion part of the second coextrusion component 42, so that the first PET layer 63 is laminated and connected with the second PE layer 62 on the side facing away from the first PE layer 62. E layer 64, then, the composite paper passes through the third coextrusion assembly 43, and at the same time, the third extrusion assembly 33 and the second PET film unwinding assembly 13 extrude PE film and PET film to the coextrusion part of the third coextrusion assembly 43 respectively, so that the other side of the paper layer 61 is sequentially laminated and connected with the third PE layer 65 and the second PET layer 66, and then the composite paper passes through the fourth coextrusion assembly 44, and the fourth extrusion assembly 34 extrude PE film to the coextrusion part of the fourth coextrusion assembly 44, so that the fourth PE layer 67 is laminated and connected to the side of the second PET layer 66 facing away from the third PE layer 65, that is, as shown in the figure. Fig. 22 The composite paper 6 product shown is then rolled up by one of the rolling mechanisms 2 .

[0024] According to the above working process, the production device of the present invention can also produce other different types of composite paper 6, for example: A. Control the fourth extrusion assembly 34 to close and stop outputting the PE film downward. The structure of the composite paper 6 formed in the end is as follows: Fig.23 As shown, according to the production process, firstly, the first PET layer 63 is laminated and connected to the first side of the paper layer 61 through the first PE layer 62, and then the second PE layer 64 is laminated and connected to the first PET layer 63, and then the second PET layer 66 is laminated and connected to the second side of the paper layer 61 through the second PE layer 64; B. Control the second extrusion assembly 32 and the fourth extrusion assembly 34 to close, and stop outputting the PE film downward to the second co-extrusion assembly 42 and the fourth co-extrusion assembly 44. The structure of the composite paper 6 formed in the end is as follows: Fig.24 As shown, according to the production process, firstly, a first PET layer 63 is laminated and connected to a first side of a paper layer 61 through a first PE layer 62, and then a second PET layer 66 is laminated and connected to the other side of the paper layer 61 through a second PE layer 64; C. Control the third extrusion assembly 33 and the second PET film unwinding assembly 13 to close, and stop outputting the PE film and the PET film to the third coextrusion assembly 43. The structure of the composite paper 6 formed in the end is as follows: Fig.26 As shown, according to the production process, firstly, the first PET layer 63 is laminated and connected to the first side of the paper layer 61 through the first PE layer 62, and then the fourth PE layer 67 is laminated and connected to the other side of the paper layer 61; D. Control the first extrusion assembly 31, the first PET film unwinding assembly 12, the third extrusion assembly 33 and the second PET film unwinding assembly 13 to close, and stop outputting the PE film and the PET film to the first co-extrusion assembly 41 and the third co-extrusion assembly 43. The structure of the composite paper 6 is as follows: Fig.28 As shown, according to the production process, the first PE layer 62 is firstly laminated and connected on the first side of the paper layer 61 , and then the third PE layer 65 is laminated and connected on the other side of the paper layer 61 .

[0025] In addition, if Fig.21 As shown on the right, the present invention can also produce multiple different types of composite papers 6. Two paper unwinding assemblies 11 unwind paper at the same time. One of the papers passes through the first coextrusion assembly 41 and the second coextrusion assembly 42 in sequence and is then wound up by one of the winding mechanisms 2. The other paper passes through the third coextrusion assembly 43 and the fourth coextrusion assembly 44 in sequence and is then wound up by the other winding mechanism 2. The composite papers 6 after lamination of the two have the same structure, as shown in FIG. Fig.25 As shown, specifically, when the paper passes through the first coextrusion component 41 (or the third coextrusion component 43), the first extrusion component 31 and the first PET film unwinding component 12 respectively output the PE film and the PET film to the coextrusion position of the first coextrusion component 41 (or the third extrusion component 33 and the second PET film unwinding component 13 respectively output the PE film and the PET film to the coextrusion position of the third coextrusion component 43), so that one side of the paper layer 61 is sequentially laminated and connected with the first PE layer 62 and the first PET layer 63, and then the composite paper passes through the second coextrusion component 42 (or the fourth coextrusion component 44), and the PE film is extruded from the second extrusion component 32 (or the fourth extrusion component 34) to the coextrusion position of the second coextrusion component 42 (or the fourth coextrusion component 44), and finally the second PE layer 64 is laminated and connected to the side of the first PET layer 63 away from the paper layer 61, that is, as shown in the figure. Fig.24 The product shown is wound by one of the winding mechanisms 2. The device can produce two products simultaneously, and the two products can be operated independently of each other without being affected. In terms of reducing the space occupied by the equipment, the production efficiency is greatly improved.

[0026] According to the above working process, the production device of the present invention can also produce other different types of composite paper 6. The layered structure of the composite paper 6 is as follows: Fig. 27 Specifically, it is only necessary to control the second extrusion assembly 32 and the fourth extrusion assembly 34 to be closed, and stop outputting the PE film downward. The operation of other components is the same as the above case. The composite paper 6 formed by the film coating is composed of a stacked paper layer 61, a first PE layer 62 and a first PET layer 63. Of course, in actual use, it is also possible to control the second extrusion assembly 32 and the fourth extrusion assembly 34, one of which is closed and the other is kept running. At this time, the device can simultaneously produce the following Fig.25The composite paper 6 product shown and Fig. 27 The composite paper 6 product shown can greatly improve production efficiency, reduce equipment space, avoid adding multiple sets of production equipment, and thus reduce production costs.

[0027] A further improvement is that the projections of the two paper unwinding assemblies 11, the four co-extrusion mechanisms 4 and the two winding mechanisms 2 on the horizontal plane are closely distributed along a first direction, and the first direction is a straight line direction. Figure 1 and Fig.23 As shown, after adopting the above structure, the device structure is made more compact and the occupied space is reduced.

[0028] A further improvement is that the four extrusion mechanisms 3 each include a downward die head 301, a screw conveyor 302 connected to the die head 301, a silo 303 for conveying materials to the screw conveyor 302, and a translation unit 304 for driving the screw conveyor 302 to translate in a second direction parallel to the second direction, and the second direction is a horizontal direction perpendicular to the first direction.

[0029] Specifically, the moving path of the die head 301 has two positions, the first position is the working position, and the second working position is the maintenance position. In the working position, the die head 301 is located directly above the co-extrusion position of the corresponding co-extrusion mechanism 4. In this position, PE particles are provided by the silo 303 and transported to the screw conveyor 302. The PE particles are heated and melted by the screw conveyor 302 and transported to the die head 301. The PE film is output downward through the die head 301 to form a PE film. The PE film and the paper are co-extruded and connected through the co-extrusion mechanism 4 to form a composite paper 6; in the maintenance position, the die head 301 is located above the side of the co-extrusion mechanism 4 and the projection of the die head 301 on the horizontal plane is separated from the projection of the co-extrusion mechanism 4 on the horizontal plane, which is convenient for cleaning and maintenance of the die head 301 and the co-extrusion mechanism 4.

[0030] A further improvement is that the four co-extrusion mechanisms 4 each include a co-extrusion frame 401 and a first clamping roller 402 and a second clamping roller 403 that rotate around their own axis lines on the co-extrusion frame 401, the first clamping roller 402 and the second clamping roller 403 are arranged closely together and the axial direction is parallel to the second direction, and at least one of the first clamping roller 402 and the second clamping roller 403 is a cooling roller.

[0031] In the co-extrusion mechanism 4, the position of the co-extrusion frame 401 is fixed, and is used to install the first nip roller 402 and the second nip roller 403. The co-extrusion position of the co-extrusion mechanism 4 is the gap between the first nip roller 402 and the second nip roller 403. Of the first nip roller 402 and the second nip roller 403, the first nip roller 402 is a cooling roller, and the outer diameter of the first nip roller 402 is larger than the outer diameter of the second nip roller 403, so that during the laminating process, the first nip roller 402 can absorb the heat of the PE film extruded by the die head 301 during the laminating process, thereby reducing the temperature of the laminating paper, avoiding the temperature of the composite paper being too high, causing the composite paper 6 to stick together during the winding and collection process, and finally making the product scrapped.

[0032] A further improvement is that, in at least one of the four co-extrusion mechanisms 4, two second clamping rollers 403 are provided and are arranged on both sides of the first clamping roller 402, and the co-extrusion frame 401 is connected to a moving unit 404, and the moving unit 404 drives the co-extrusion frame 401 to translate along the second direction, so that the die head 301 of the extrusion unit corresponding to the co-extrusion mechanism 4 is facing downward between the first clamping roller 402 and one of the second clamping rollers 403; specifically, among the four co-extrusion mechanisms 4, the co-extrusion frame 401 of the fourth co-extrusion assembly 44 is connected to a moving unit 404.

[0033] In the four co-extrusion mechanisms 4 of the device, the first co-extrusion component 41, the second co-extrusion component 42 and the third co-extrusion component 43 each include a second clamping roller 403, and in the first co-extrusion component 41 and the third co-extrusion component 43, the second clamping roller 403 is located on the side of the first clamping roller 402 close to the paper unwinding component 11, in the second co-extrusion component 42, the second clamping roller 403 is located on the side of the first clamping roller 402 close to the winding mechanism 2, and in the fourth co-extrusion component 44, two second clamping rollers 403 are provided, and are respectively located The side of the first clamping roller 402 close to the paper unwinding assembly 11 and the side of the first clamping roller 402 close to the winding mechanism 2 can control the co-extrusion frame 401 to move in the first direction through the moving unit 404, and adjust the position of the co-extrusion frame 401, so that when the die head 301 in the fourth extrusion assembly 34 is located in the working position, the die head 301 faces downwardly the gap between the first clamping roller 402 and the second clamping roller 403 in the fourth co-extrusion assembly 44, so as to adjust the paper direction according to production needs and facilitate the production of different types of composite paper 6.

[0034] The specific structures of the first co-extrusion assembly 41, the second co-extrusion assembly 42 and the third co-extrusion assembly 43 are as follows: Figure 19-21As shown, the co-extrusion frame 401 includes two co-extrusion vertical plates 4011 distributed along the second direction and vertically arranged, two co-extrusion support feet 4012 distributed at equal intervals along the first direction are fixed to the bottom of the two co-extrusion vertical plates 4011, and the co-extrusion support feet 4012 are fixed above the ground. The co-extrusion support feet 4012 below the two co-extrusion vertical plates 4011 are arranged opposite to each other, and a guide roller 408 is arranged between the two co-extrusion vertical plates 4011, and the guide roller 408 rotates around its own axis between the two co-extrusion support feet 4012, so that the transmission path of the composite paper is conveniently guided by the guide roller 408.

[0035] In order to ensure the quality of co-extrusion connection, a pressure roller 405 is provided on the side of the second nip roller 403 away from the first nip roller 402. The roller surface of the pressure roller 405 is in contact with the roller surface of the second nip roller 403. The pressure roller 405 is connected to a pressure unit, which is used to apply an extrusion force to the second nip roller 403, so that the second nip roller 403 is close to the first nip roller 402. When the composite paper passes between the first nip roller 402 and the second nip roller 403, the first nip roller 402 and the second nip roller 403 can apply an extrusion force from both sides of the composite paper to ensure the connection force between the layers in the composite paper, avoid delamination of the composite paper, and affect the product quality.

[0036] The center of the top surface of the co-extrusion vertical plate 4011 is horizontal, and the two sides are inclined downward. The first roller seat 4021 is fixed to the center of the top surface of the co-extrusion vertical plate 4011, and the first clamping roller 402 rotates around its own axis between the two first roller seats 4021; the top of the co-extrusion vertical plate 4011 is provided with an inclined co-extrusion slide 406, and the co-extrusion slide 406 and the second clamping roller 403 are both arranged on the same side of the first clamping roller 402, and the co-extrusion slide 406 is fixed to the co-extrusion vertical plate 4011; a second co-extrusion slider 4032 and a pressure co-extrusion slider 4052 slide on the co-extrusion slide rail 406, a second roller seat 4031 is fixed above the second co-extrusion slider 4032, a pressure seat 4051 is fixed above the pressure co-extrusion slider 4052, the second clamping roller 403 rotates around its own axis between the two second roller seats 4031, and the pressure roller 405 rotates around its own axis between the two pressure seats 4051.

[0037] Two pressure units are provided, which are respectively connected to the two co-extruded vertical plates 4011. The pressure unit includes a co-extruded push-pull cylinder 407 and a cylinder mounting seat 4071. The cylinder mounting seat 4071 is fixedly connected to the co-extruded vertical plate 4011, the piston rod of the co-extruded push-pull cylinder 407 is fixedly connected to the pressure seat 4051, and the cylinder barrel is rotatably connected to the cylinder mounting seat 4071.

[0038] A long co-extrusion connecting rod 409 is also arranged between the second roller seat 4031 and the pressure seat 4051. The co-extrusion connecting rod 409 is provided with a through-hole-shaped strip opening 4091. The second roller seat 4031 is fixed with a second cam shaft 4033 passing through the inner side of the strip opening 4091. The pressure seat 4051 is fixed with a pressure cam shaft 4053. The sealing sleeve of the co-extrusion connecting rod 409 is arranged outside the pressure cam shaft 4053.

[0039] After adopting the above design, when it is necessary to apply pressure to the coated paper passing between the first clamping roller 402 and the second clamping roller 403, the piston rod of the co-extrusion push-pull cylinder 407 extends outward and acts on the pressure seat 4051, driving the pressure co-extrusion slider 4052 to slide downward along the co-extrusion slide rail 406, thereby causing the axis line of the pressure roller 405 to move downward at an angle, and the pressure roller 405 acts on the second clamping roller 403, facilitating the second co-extrusion slider 4032 under the second roller seat 4031 to slide downward along the co-extrusion slide rail 406, thereby causing the second clamping roller 403 to approach the first clamping roller 402, thereby increasing the squeezing force of the second clamping roller 403 and the first clamping roller 402 on both sides of the coated paper, thereby ensuring the connecting force between the layers of the composite paper 6 and avoiding delamination.

[0040] When maintenance is needed, the piston rod of the co-extrusion push-pull cylinder 407 retracts, pulling the pressure seat 4051 upward, so that the pressure co-extrusion slider 4052 moves upward, while the axis of the pressure roller 405 moves up and disengages from the second clamping roller 403, and the pressure cam 4053 pulls the co-extrusion connecting rod 409, so that the inner wall of the end of the strip mouth 4091 on the co-extrusion connecting rod 409 acts on the second cam 4033, and the second roller seat 4031 is pulled by the second cam 4033, so that the second co-extrusion slider 4032 moves up along the co-extrusion slide rail 406, and the second clamping roller 403 moves up, so that a certain distance is maintained between the first clamping roller 402, the second clamping roller 403 and the pressure roller 405, which is convenient for maintenance work.

[0041] Different from the first co-extrusion assembly 41, the second co-extrusion assembly 42 and the third co-extrusion assembly 43, Fig.15 and Fig.16 As shown, the fourth co-extrusion component 44 of the present invention is provided with two second clamping rollers 403, and the corresponding pressure rollers 405 and the pressure units are each provided with two, corresponding to the two second clamping rollers 403; in addition, the co-extrusion frame 401 in the fourth co-extrusion component 44 includes two vertical co-extrusion risers 4011 and three co-extrusion connecting frames 4013, and the co-extrusion connecting frames 4013 are U-shaped structures with an opening upward, and the three co-extrusion connecting frames 4013 are evenly spaced along the first direction, and the two ends of the co-extrusion connecting frames 4013 are respectively fixedly connected to the two co-extrusion risers 4011.

[0042] The mobile unit 404 includes a mobile cylinder 4041, a mobile slider 4042 and a mobile slider 4043. The cylinder barrel of the mobile cylinder 4041 and the mobile slider 4043 are both fixed on the ground. The piston rod of the mobile cylinder 4041 is fixed under one of the co-extrusion connecting frames 4013. The axial direction of the mobile cylinder 4041 and the length direction of the mobile slider 4043 are both parallel to the first direction. The mobile slider 4042 is integrally connected and fixed under the co-extrusion connecting frame 4013 in a one-to-one manner. The mobile slider 4042 and the mobile slider 4043 slide in cooperation with each other.

[0043] After adopting the above structure, the co-extrusion connecting frame 4013 is acted on by the movable cylinder 4041, and under the sliding cooperation of the movable slider 4042 and the movable slide rail 4043, the co-extrusion connecting frame 4013 is translated along the first direction, and the position of the first clamping roller 402 is adjusted, so that the die head 301 in the fourth extrusion assembly 34 can be oriented between the first clamping roller 402 and one of the second clamping rollers 403, and the winding direction of the paper and the first clamping roller 402 is changed, so that one side of the paper is co-extruded and connected with the PET film and the PE film.

[0044] A further improvement is that the first extrusion component 31 and the second extrusion component 32 also include an elevated frame 305, and the translation units 304 of the first extrusion component 31 and the second extrusion component 32 are both arranged on the elevated frame 305. The elevated frame 305 and the ground are enclosed to form a channel for materials to pass through. The translation units 304 of the first co-extrusion component 41 and the second co-extrusion component 42 are adjacent to the ground. In the four extrusion mechanisms 3, the translation units 304 are all located below the screw conveyor 302.

[0045] For the first extrusion assembly 31 and the second extrusion assembly 32, by setting up the raising frame 305, it is helpful to increase the height of the die head 301, facilitate the paper to pass from above or below the die head 301, adjust the paper transmission path, and at the same time form a channel between the raising frame 305 and the ground, so that the staff can transport PE materials to the third extrusion assembly 33 and the fourth extrusion assembly 34 through the channel. For the third extrusion assembly 33 and the fourth extrusion assembly 34, since the translation unit 304 is close to the ground, it is helpful to lower the height of the die head 301, facilitate the paper to bypass the top of the die head 301, facilitate paper threading, and connect the paper with the PE film output by the die head 301.

[0046] like Figure 11-13As shown, the first extrusion assembly 31 and the second extrusion assembly 32 have the same structure, wherein the heightening frame 305 includes six heightening pillars 3051 extending in the vertical direction and distributed in a rectangular array, and the heightening pillars 3051 have two rows and three columns, and the tops of the two rows of heightening pillars 3051 are fixed with extrusion guide rails 306 extending in the second direction, and the bottom of the screw conveyor 302 is fixed with an extrusion slide bar 307 that slides with the extrusion guide rail 306, and the translation unit 304 includes a translation electric The translation motor 3041 is fixed between two height-increasing pillars 3051 through the translation fixing plate 3044. The output end of the translation motor 3041 is upward and fixedly connected with the translation gear 3042 coaxially. The length direction of the translation rack 3043 is the second direction. The translation rack 3043 is fixed below the screw conveyor 302 and meshes with the translation gear 3042.

[0047] like Fig.14 As shown, the third extrusion assembly 33 and the fourth extrusion assembly 34 have the same structure. The difference from the first extrusion assembly 31 and the second extrusion assembly 32 is that in the third extrusion assembly 33 and the fourth extrusion assembly 34, the extrusion guide rail 306 extends along the second direction and is fixed above the ground. Two extrusion guide rails 306 are arranged side by side along the first direction. An extrusion slide bar 307 slides above the extrusion guide rail 306. A horizontal extrusion slide seat 308 is fixed on the two extrusion slide bars 307. The screw conveyor 30 2 is fixed above the extrusion sliding seat 308, the translation unit 304 includes a translation motor 3041, a translation gear 3042 and a translation rack 3043, the translation motor 3041 is fixed below the screw conveyor 302 and is arranged downward, the output end is fixedly connected with the translation gear 3042 coaxially, the translation gear 3042 is meshed with the translation rack 3043, the length direction of the translation rack 3043 is parallel to the second direction, and the translation rack 3043 is fixed on one of the extrusion guide rails 306.

[0048] After the extrusion mechanism 3 adopts the above structure, when it is necessary to adjust the position of the screw conveyor 302 and the die head 301, the translation motor 3041 is started to drive the translation gear 3042 to rotate, and through the translation rack 3043 engaged with it, the screw conveyor 302 moves along the second direction under the sliding cooperation of the extrusion slide bar 307 and the extrusion guide rail 306, thereby adjusting the position of the die head 301 and moving the die head 301 to the working position or maintenance position.

[0049] A further improvement is that a material guide assembly 5 is provided between the paper unwinding assembly 11 and the first co-extrusion assembly 41, between two adjacent co-extrusion mechanisms 4, and between the fourth co-extrusion assembly 44 and the winding mechanism 2. The material guide assembly 5 is used to guide the transmission path of the paper. The material guide assembly 5 includes a material guide frame 51 and a guide roller 52 distributed along the vertical direction and axially parallel to the second direction, and the guide roller 52 rotates around its own axis.

[0050] The guide roller 52 in the material guide assembly 5 facilitates the guiding of the paper transmission path, so that the paper can be co-extruded and connected with the PE film while passing through the four co-extrusion mechanisms 4, and then the composite paper 6 is rolled up by the rolling mechanism 2.

[0051] A further improvement is that in the material guide assembly 5, at least one guide roller 52 is connected to a sliding frame 53, and the sliding frame 53 is connected to the material guide frame 51 through an elastic member 54 and slides on the material guide frame 51 to adjust the transmission tension of the paper; an adjustment unit 55 is provided between the elastic member 54 and the material guide frame 51 to adjust the elastic force of the elastic member 54 on the sliding frame 53.

[0052] The specific structure of the material guide component 5 is as follows: Figure 4 and Figure 5 As shown, in the material guide assembly 5, the material guide frame 51 is an inverted U-shaped structure, and both ends of the material guide frame 51 are fixed above the ground. The material guide assembly 5 includes three guide rollers 52, and the three guide rollers 52 are distributed along the vertical direction. The axis of the guide roller 52 located at the bottom is fixed, and the guide roller 52 rotates around its own axis on the inner side of the material guide frame 51, and the guide roller 52 is close to the ground, which is convenient for paper to pass from the bottom and change the direction of the paper transmission path.

[0053] The remaining two guide rollers 52 are connected to a sliding frame 53, and the sliding frame 53 is connected to an adjustment unit 55 through an elastic member 54. The height of the guide roller 52 in the middle is slightly greater than the bottom height of the die head 301 in the four extrusion mechanisms 3, which is convenient for threading paper from a higher position before and after lamination, and the height of the top guide roller 52 is greater than the top height of the screw conveyor 302, which is convenient for threading paper from a high place and changing the direction of the paper transmission path.

[0054] By moving the output end of the adjustment unit 55 in the vertical direction, the elastic force of the elastic member 54 on the sliding frame 53 is changed, so that the position of the guide roller 52 can be adjusted, and the transmission tension of the paper when it bypasses the guide roller 52 can be adjusted to ensure stable transmission of the paper.

[0055] The adjusting unit 55 comprises a fixed plate 555, which is horizontally fixed to the inner side of the material guide frame 51 and has an upward adjusting motor 551 fixed on the top surface. An adjusting screw 552 with an axial direction in the vertical direction is fixedly connected to the output end of the adjusting motor 551 coaxially. The adjusting screw 552 is threadedly connected to an adjusting screw sleeve 553. An adjusting plate 554 which is horizontal and slidably matched with the material guide frame 51 is fixed to the top of the adjusting screw sleeve 553. The adjusting plate 554 slides on the material guide frame 51 in the vertical direction. The elastic member 54 is a spring, and its bottom end is connected to the adjusting plate 554 through a pressure sensor 541, and its top end is connected to the sliding frame 53. The guide roller 52 rotates on the sliding frame 53 around its own axis. A guide rod 56 which extends in the vertical direction and slidably matches with the adjusting plate 554 in the vertical direction is fixed to the bottom end of the sliding frame 53.

[0056] After adopting the above structure, the elastic force of the elastic member 54 can be detected by the pressure sensor 541 to detect the transmission tension of the paper when passing through the guide roller 52, and then the height position of the adjustment plate 554 is controlled by the adjustment unit 55 to change the elastic force of the elastic member 54 to ensure the stable transmission tension of the paper. Specifically, the adjustment motor 551 is started, driving the adjustment screw 552 to rotate, acting on the adjustment screw sleeve 553, so that the adjustment screw sleeve 553 drives the adjustment plate 554 to slide on the guide frame 51 in the vertical direction, changing the elastic force of the elastic member 54 to change the transmission tension of the paper.

[0057] like Figure 6-Figure 8 As shown, two paper unwinding assemblies 11 are arranged on an unwinding frame 101, and the unwinding frame 101 is fixed on the ground. The two paper unwinding assemblies 11 both include an unwinding motor 102 fixed on the unwinding frame 101, and the output end of the unwinding motor 102 is detachably and fixedly connected with an unwinding roller 103 coaxially; the paper unwinding assembly 11 also includes an unwinding slot 104 distributed along the second direction and upward, and an unwinding ball 1041 is arranged on the inner wall of the unwinding slot 104. When both ends of the roller shaft of the unwinding roller 103 are placed in the two unwinding slots 104, the spherical surface of the unwinding ball 1041 abuts against the roller shaft end of the unwinding roller 103, and the unwinding ball 1041 rotates in situ around its own spherical center on the unwinding slot 104, which can reduce the friction force on the unwinding roller 103 when rotating, thereby reducing the power consumption of the unwinding motor 102. Two opposing unwinding connection grooves 107 are arranged between the output end of the unwinding motor 102 and one end of the roller shaft of the unwinding roller 103. The two ends of the two unwinding connection grooves 107 are respectively connected to the output end of the unwinding motor 102 and the roller shaft of the unwinding roller 103 through two pairs of threaded unwinding bolts 105 and unwinding nuts 106, thereby realizing a coaxial detachable fixed connection between the unwinding motor 102 and the unwinding roller 103.

[0058] The structure of the first PET film unwinding assembly 12 and the second PET film unwinding assembly 13 is similar to that of the paper unwinding assembly 11, except that the first PET film unwinding assembly 12 and the second PET film unwinding assembly 13 include unwinding brackets 108 fixed one by one under the two unwinding slots 104, the unwinding motor 102 is fixedly connected to the unwinding bracket 108, and the bottom of the unwinding bracket 108 is fixed above the co-extrusion vertical plate 4011. For the first PET film unwinding assembly 12, its unwinding bracket 108 is located on the side of the first clamping roller 402 close to the winding mechanism 2, and for the second PET film unwinding assembly 13, its unwinding bracket 108 is located on the side of the first clamping roller 402 away from the winding mechanism 2.

[0059] There are two winding mechanisms 2, both of which are arranged on the winding frame 21. Fig. 9 As shown, the two winding mechanisms 2 both include a winding motor 22 fixed on the winding frame 21, and the output end of the winding motor 22 is detachably fixedly connected to the coaxial center line of one end of the roller shaft of the winding roller 23 through two winding connection grooves 27, two pairs of threaded winding bolts 25 and winding nuts 26; an upward winding slot 24 is fixed on the winding frame 201, and a winding ball (not shown in the figure, similar to the structure of the paper unwinding component 11) is arranged on the inner wall of the winding slot 24, which rotates around its own spherical center. The spherical surface of the winding ball abuts against the end of the roller shaft of the winding roller 23 to reduce the friction force on the winding roller 23 when it rotates, thereby reducing the power consumption of winding.

[0060] 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 technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional coated paper production device, characterized in that: include: There are four unwinding mechanisms, two of which are a first PET film unwinding assembly and a second PET film unwinding assembly for unwinding PET film, and the remaining two are paper unwinding assemblies for unwinding paper; Two reeling mechanisms are provided for reeling in the co-extruded composite paper, and the two reeling mechanisms correspond one to one with the two paper unwinding assemblies; Four extrusion mechanisms and four co-extrusion mechanisms correspond to each other one by one, the extrusion mechanism is used to extrude PE film to the corresponding co-extrusion mechanism, the four co-extrusion mechanisms are respectively a first co-extrusion component, a second co-extrusion component, a third co-extrusion component and a fourth co-extrusion component which are sequentially arranged along the paper transmission path, the first co-extrusion component is arranged between the paper unwinding component and the first PET film unwinding component to co-extrude and connect the first side of the paper, the PE film and the PET film, the second co-extrusion component and the third co-extrusion component are sequentially arranged between the first PET film unwinding component and the second PET film unwinding component to first co-extrude and connect the PET film on the first side of the paper with the PE film, and then co-extrude and connect the second side of the paper, the PE film and the PET film, the fourth co-extrusion component is arranged between the second PET film unwinding component and the winding mechanism to co-extrude and connect the PET film on the second side of the paper with the PE film.

2. The multifunctional coated paper production device according to claim 1, characterized in that: The projections of the two paper unwinding assemblies, the four co-extrusion mechanisms and the two winding mechanisms on the horizontal plane are closely distributed along a first direction, and the first direction is a straight line direction.

3. The multifunctional coated paper production device according to claim 1, characterized in that: The four extrusion mechanisms each include a downward die head, a screw conveyor connected to the die head, a silo for conveying materials to the screw conveyor, and a translation unit for driving the screw conveyor to translate in parallel to the second direction, which is a horizontal direction perpendicular to the first direction.

4. The multifunctional coated paper production device according to claim 3, characterized in that: The four co-extrusion mechanisms each include a co-extrusion frame and a first clamping roller and a second clamping roller that rotate around their own axis lines on the co-extrusion frame. The first clamping roller and the second clamping roller are arranged adjacent to each other and their axes are parallel to the second direction. At least one of the first clamping roller and the second clamping roller is a cooling roller.

5. The multifunctional coated paper production device according to claim 3, characterized in that: In at least one of the four co-extrusion mechanisms, two second clamping rollers are provided and are arranged on both sides of the first clamping roller. The co-extrusion frame is connected to a moving unit, and the moving unit drives the co-extrusion frame to translate along the second direction so that the die head of the extrusion unit corresponding to the co-extrusion mechanism faces downward between the first clamping roller and one of the second clamping rollers.

6. The multifunctional coated paper production device according to claim 5, characterized in that: Among the four co-extrusion mechanisms, the co-extrusion frame of the fourth co-extrusion assembly is connected with a moving unit.

7. The multifunctional coated paper production device according to claim 6, characterized in that: The four extrusion mechanisms are the first extrusion assembly, the second extrusion assembly, the third extrusion assembly and the fourth extrusion assembly, which correspond to the first co-extrusion assembly, the second co-extrusion assembly, the third co-extrusion assembly and the fourth co-extrusion assembly respectively. The first extrusion assembly and the second extrusion assembly also include an elevated frame. The translation units of the first extrusion assembly and the second extrusion assembly are both arranged on the elevated frame. The elevated frame and the ground are enclosed to form a channel for materials to pass through. The translation units of the third extrusion assembly and the fourth extrusion assembly are adjacent to the ground. Among the four extrusion mechanisms, the translation units are all located below the screw conveyor.

8. The multifunctional coated paper production device according to any one of claims 3 to 7, characterized in that: A material guide assembly is provided between the paper unwinding assembly and the first co-extrusion assembly, between two adjacent co-extrusion mechanisms, and between the fourth co-extrusion assembly and the winding mechanism. The material guide assembly is used to guide the transmission path of the paper. The material guide assembly includes a material guide frame and guide rollers distributed along the vertical direction and axially parallel to the second direction. The guide rollers rotate around their own axis.

9. The multifunctional coated paper production device according to claim 8, characterized in that: In the material guide assembly, at least one guide roller is connected to a sliding frame, and the sliding frame is connected to the material guide frame through an elastic member and slides on the material guide frame to adjust the transmission tension of the paper.

10. The multifunctional coated paper production device according to claim 9, characterized in that: An adjustment unit is provided between the elastic member and the material guide frame to adjust the elastic force of the elastic member on the sliding frame.

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