Compact type composite non-woven fabric laminating production device

Abstract

The utility model discloses a compact type composite non-woven fabric film spraying production device which comprises an unwinding assembly, a film spraying assembly and a film spraying assembly. The film spraying assembly comprises two adjacent die heads; the composite roller pairs comprise a first clamping roller and a second clamping roller, the number of the composite roller pairs is two, guide rollers are arranged on the feeding sides of the composite roller pairs, and the two composite roller pairs correspond to the two die heads in a one-to-one mode; and the winding assembly is used for winding and collecting the composite film product. In the compact type composite non-woven fabric lamination production device, the two die heads are adjacent to each other, so that the two composite paired rollers corresponding to the two die heads are adjacent to each other, and the guide rollers are used for guiding a material conveying path, so that the device is compact in overall structure, the occupied space is reduced, workers can conveniently move, the material conveying path is shortened, and the production efficiency is favorably improved; the risk of external pollution is reduced, so that the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite non-woven fabric laminating, in particular to a compact composite non-woven fabric laminating production device. Background Art

[0002] In the prior art, for example, the Chinese utility model patent with announcement number CN220900823U discloses a laminating device for environmentally friendly composite non-woven fabrics, which is mainly used to produce composite non-woven fabrics for packaging. The composite non-woven fabrics are formed by sequentially stacking and connecting aluminized film, PE inner film, non-woven fabric, PE outer film and printed film from the inside out. Therefore, it combines the advantages of multiple materials such as aluminized film, PE film and non-woven fabric, and has multiple properties such as light shading, UV protection, waterproof and moisture-proof, breathable and comfortable, beautiful and durable, etc. Therefore, it is widely used in insulation bags, food packaging, medical supplies and other fields.

[0003] However, in the above-mentioned laminating device, the two laminating units are far apart in the horizontal direction, which makes the entire laminating device larger and occupies too much production space, thus affecting the production activities of workshop workers. In addition, since the transmission path of materials such as non-woven fabrics, printed films and thermal insulation films in the horizontal direction is too long, more time is required to move the materials, reducing production efficiency. In addition, the risk of contamination by external dust and impurities during material transmission increases, and the transmission tension fluctuates greatly, which in turn affects product quality.

[0004] Therefore, it is necessary to improve the composite non-woven fabric laminating production device in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide a compact composite non-woven fabric coating production device with a compact structure, reduced occupied space, convenient production activities of workers, improved production efficiency, reduced pollution risks and improved product quality.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: a compact composite non-woven fabric laminating production device, comprising:

[0007] Unwinding components, wherein three unwinding components are provided, respectively used for outputting non-woven fabrics, thermal insulation films and printed films;

[0008] A laminating assembly, the laminating assembly comprising two die heads for outputting the adhesive layer downward, the two die heads being arranged side by side and closely adjacent to each other along a first horizontal direction;

[0009] A composite pair of rollers, the composite pair of rollers comprising a first nip roller and a second nip roller whose axis is distributed along a first direction, two composite pair of rollers are provided and a guide roller for guiding the transmission path of the non-woven fabric is provided on the feed side, and the gap between the first nip roller and the second nip roller in the two composite pair of rollers is located directly below the two die heads in a one-to-one correspondence, so as to sequentially connect the two sides of the adhesive layer respectively outputted by the two die heads with the thermal insulation film and the printing film through the adhesive layer to form a composite film product;

[0010] A winding component is used for winding and collecting the composite film product.

[0011] Preferably, in order to ensure the quality of the lamination, the two composite rollers are symmetrically distributed and the symmetry plane is perpendicular to the first direction.

[0012] Preferably, in order to reduce the horizontal distance between the two die heads, the outer diameter of the first nip roller is smaller than the outer diameter of the second nip roller, and the first nip roller of the two composite roller pairs is located between the second nip rollers of the two composite roller pairs.

[0013] Preferably, in order to further reduce the horizontal distance between the two die heads, the spacing between the two composite roller pairs is smaller than the outer diameter of the guide roller.

[0014] Preferably, in order to reduce the overall size of the device and thus reduce the occupied space, the outer diameter of the guide roller is 80-120 mm.

[0015] Preferably, in order to further reduce the size of the device and ensure the lamination quality, the first clamping roller is a rubber roller, and the outer diameter of the rubber roller is 280-300 mm.

[0016] Preferably, in order to ensure the squeezing force between the first nip roller and the second nip roller, a shortening assembly is further included, wherein the shortening assembly is used to shorten the distance between the first nip roller and the second nip roller in the composite pair of rollers to increase the squeezing force on both sides of the adhesive layer.

[0017] Preferably, in order to increase the extrusion force while reducing the number of driving sources and lowering costs, the axial centerline position of the second clamping roller is fixed, the axial centerline of the first clamping roller is set to slide along the first direction, and the shortening component is set between the same end of the first clamping roller in the two compound roller pairs, and the shortening component is used to drive the axial centerlines of the first clamping rollers in the two compound roller pairs to move in opposite directions.

[0018] Preferably, in order to be able to drive the axis lines of the two composite pairs of rollers to move in opposite directions, a bearing is connected to the end of the first clamping roller, and the shortening assembly includes a telescopic unit and a supporting member. The telescopic unit drives the supporting member to move in the vertical direction, and the inner ring of the bearing is fixedly connected to the roller shaft of the first clamping roller, and the outer ring is in contact with the supporting member.

[0019] Preferably, in order to ensure that the axis center line of the first clamping roller is horizontal, two shortening assemblies are provided, which are respectively arranged at both ends of the two composite roller pairs.

[0020] To sum up, compared with the prior art, the compact composite non-woven fabric coating production device of the utility model has two adjacent die heads, so that the two composite rollers corresponding to the two die heads are adjacent to each other, and the guide roller is used to guide the material transmission path, so that the overall structure of the device is compact, the occupied space is reduced, the workers' activities are convenient, and the material transmission path is shortened, which is conducive to improving production efficiency and reducing the risk of external contamination, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 yes Figure 1 The structural schematic diagram omitting the nonwoven fabric, thermal insulation film, and printed film;

[0023] Figure 3 yes Figure 1 A partial structural diagram of

[0024] Figure 4 yes Figure 3 A front view of

[0025] Figure 5 It is a structural schematic diagram of the unwinding assembly of the utility model;

[0026] Figure 6 yes Figure 5 Explosion diagram of

[0027] Figure 7 yes Figure 1 A partial structural diagram of

[0028] Figure 8 yes Figure 7 Explosion diagram of

[0029] Fig. 9 yes Figure 8 A magnified view of part A;

[0030] In the figure: 1, frame; 11, bottom plate; 12, bracket; 2, unwinding assembly; 21, unwinding motor; 22, unwinding roller; 23, unwinding frame; 24, swing roller; 25, swing arm; 3, coating assembly; 31, die head; 32, screw conveyor; 4, composite roller pair; 41, first clamping roller; 411, bearing; 412, slider; 42, second clamping roller; 43, roller frame; 431, slide; 5, guide roller; 6, winding Roll assembly; 61. Winding motor; 62. Winding roller; 63. Winding frame; 7. Reduction assembly; 71. Telescopic unit; 72. Abutment; 721. Abutment frame; 722. Roller; 8. Composite film product; 81. Non-woven fabric; 82. Insulating film; 83. Printing film; 84. Adhesive layer; 9. Connecting assembly; 91. Connecting plate; 92. Sliding rod; 93. Sliding sleeve; 94. Sliding tube; 95. Bolt; 96. Nut. DETAILED DESCRIPTION

[0031] The following is a further description of the specific implementation of the present invention 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.

[0032] like Figure 1-Figure 9 As shown, the compact composite non-woven fabric laminating production device of the utility model comprises:

[0033] Unwinding components 2, which are provided with three, and are used to output non-woven fabric 81, thermal insulation film 82 and printing film 83 respectively;

[0034] The laminating assembly 3 includes two die heads 31 for outputting the adhesive layer 84 downward, and the two die heads 31 are arranged side by side and closely adjacent to each other along a first horizontal direction;

[0035] The composite roller pair 4 includes a first nip roller 41 and a second nip roller 42 whose axis lines are distributed along a first direction. The composite roller pair 4 is provided with two guide rollers 5 for guiding the transmission path of the non-woven fabric 81 on both sides of the feed side. The gaps between the first nip roller 41 and the second nip roller 42 in the two composite roller pairs 4 are located directly below the two die heads 31 in a one-to-one correspondence, so as to sequentially connect the two sides of the adhesive layer 84 respectively outputted by the two die heads 31 with the thermal insulation film 82 and the printing film 83 in a stacked manner to form a composite film product 8;

[0036] The winding component 6 is used for winding and collecting the composite film product 8.

[0037] Specifically, the compact composite non-woven fabric laminating production device of the utility model further comprises a frame 1, which comprises a horizontal bottom plate 11 and a bracket 12 fixed directly above the bottom plate 11, wherein the bottom plate 11 is fixed on the ground.

[0038] There are three unwinding components 2, which are used to unwind the non-woven fabric 81, the thermal insulation film 82 and the printed film 83 respectively. During the lamination, one side of the non-woven fabric 81 is first guided by the guide roller 5 and passes through the gap between the first clamping roller 41 and the second clamping roller 42 of one of the composite roller pairs 4 with the thermal insulation film 82. At the same time, one of the die heads 31 outputs the adhesive layer 84 downward, and the adhesive layer 84 is laminated and connected between the non-woven fabric 81 and the thermal insulation film 82. Then, the laminated composite film material is passed through the gap between the first clamping roller 41 and the second clamping roller 42 of another composite roller pair 4 by the guide roller 5. At the same time, the other die head 31 outputs the adhesive layer 84 downward, so that the other side of the non-woven fabric 81 is laminated and connected with the printed film 83 through the adhesive layer 84 to form a composite film product 8.

[0039] The specific structure of the unwinding component 2 is as follows: Figure 5 and Figure 8 As shown, the unwinding assembly 2 includes a U-shaped unwinding frame 23 that is upward, the unwinding frame 23 is fixed above the bracket 12, a side frame is fixed to one end of the unwinding frame 23, the unwinding motor 21 is fixed to the side frame, and the output shaft is detachably connected to the roller shaft of the unwinding roller 22 through the connecting assembly 9, and two upward slots are fixed at both ends of the unwinding frame 23, and the slot width is consistent with the roller shaft of the unwinding roller 22 to facilitate the loading and unloading operations of the unwinding roller 22.

[0040] The connection assembly 9 includes a connection disk 91 fixed to the end of the output shaft of the unwinding motor 21 with a coaxial centerline, and four slide bars 92 with an axial direction parallel to the axial direction of the output shaft of the unwinding motor 21 are fixed on the side of the connection disk 91 away from the unwinding motor 21, and a sliding sleeve 93 is provided on the outer sliding sleeve of the slide bar 92, and a slide tube 94 is integrally connected between the four slide bars 92, and the circumferential inner wall of the slide tube 94 is sealed with the circumferential outer edge of the roller shaft of the unwinding roller 22, and the slide tube 94 and the roller shaft of the unwinding roller 22 are fixedly connected by a threaded bolt 95 and a nut 96, and the bolt 95 is axially perpendicular to the length direction of the slide tube 94. After adopting the above structure, it is convenient to realize the detachable connection between the unwinding motor 21 and the unwinding roller 22, and it is convenient to install the unwinding roller 22 on the frame 1. After unwinding is completed, the unwinding roller 22 is removed for replacement and connection.

[0041] In order to ensure the transmission quality of the non-woven fabric 81, thermal insulation film 82 and printed film 83 output by the three unwinding components 2, the discharge sides at both ends of the unwinding frame 23 are rotatably connected to the two ends of the swing roller 24 through two swing arms 25 respectively. The swing roller 24 rotates around its own axis. The three swing rollers 24 are respectively attached to the top of the transmission path of the non-woven fabric 81, thermal insulation film 82 and printed film 83. In this way, relying on the weight of the swing roller 24 itself, pressure is applied to the production material to ensure the tension during the material transmission process and avoid excessive relaxation of the material during transmission.

[0042] The structure of the winding component 6 is similar to that of the unwinding component 2. The winding component 6 includes a winding frame 63 fixed on the bracket 12. The winding frame 63 is an upward U-shaped structure. Slots are also provided on the two side walls of the winding frame 63. The roller shaft of the winding roller 62 is horizontally mounted on the bottom of the slots at both ends. The winding motor 61 is fixed to one end of the winding frame 63, and the output shaft is also detachably fixedly connected to the roller shaft of the winding roller 62 through the connecting component 9. In this way, the winding roller 62 is driven to rotate by the winding motor 61, and the composite film product 8 formed by the coating is wound and collected on the winding roller 62. After winding, the bolts 95 and the nuts 96 are removed, and the winding roller 62 can be removed from the winding frame 63, and then the roller shafts of other winding rollers 62 are mounted on the bottom of the two slots, and the sliding tube 94 is slid by the sliding matching sliding rod 92 and the sliding sleeve 93, so that the sliding tube 94 is sleeved on the outside of the roller shaft end of the winding roller 62, and then the bolts 95 are passed through, and the nuts 96 are screwed on to realize the transmission connection between the winding motor 61 and the winding roller 62.

[0043] A side frame is fixed to one end of the unwinding frame 23, and the unwinding motor 21 is fixed on the side frame, and the output shaft is detachably connected to the roller shaft of the unwinding roller 22 through a connecting component 9. Two upward slots are fixed at both ends of the unwinding frame 23, and the slot width of the slot is consistent with the roller shaft of the unwinding roller 22 to facilitate the loading and unloading operations of the unwinding roller 22.

[0044] The laminating assembly 3 also includes a screw conveyor 32, which is fixed to the top of the base plate 11 through a bracket 12, and the output end is fixedly connected to the die head 31, so as to convey the molten PE material required for the molding of the adhesive layer 84. The length direction of the die head 31 is parallel to the axial direction of the first clamping roller 41, and the die head 31 outputs the adhesive layer 84 downward to stack and connect one side of the non-woven fabric 81 with the thermal insulation film 82 and the other side of the non-woven fabric 81 with the printed film 83.

[0045] In the utility model, the first direction is a horizontal direction perpendicular to the die head 31. Since the two die heads 31 are distributed side by side and closely arranged along the first direction, and the two die heads 31 are downward and respectively facing the gap between the first clamping roller 41 and the second clamping roller 42 in the two composite roller pairs 4, the two composite roller pairs 4 are closely adjacent to each other. In this way, the spacing between the two die heads 31 and the spacing between the two composite roller pairs 4 are shortened, making the device structure more compact, reducing the occupied space, and facilitating the production activities of workers. At the same time, it is beneficial to reduce the transmission path of materials such as non-woven fabrics 81, thermal insulation films 82 and printed films 83, which is beneficial to shorten the transmission path, thereby improving production efficiency, and reducing the tension changes in the material transmission process and the influence of external pollution, thereby helping to improve product quality.

[0046] A further improvement is that the two composite rollers 4 are symmetrically distributed and the symmetry plane is perpendicular to the first direction. That is, the gap between the first clamping roller 41 and the second clamping roller 42 in the two composite rollers 4 is at the same horizontal position, ensuring that the height difference between the die head 31 and the gap is fixed, thereby ensuring stable lamination quality, and shortening the distance between the two composite rollers 4, which is conducive to further reducing the size of the device and further shortening the material transmission path.

[0047] A further improvement is that the outer diameter of the first nip roller 41 is smaller than the outer diameter of the second nip roller 42 , and the first nip roller 41 of the two compound roller pairs 4 is located between the second nip rollers 42 of the two compound roller pairs 4 .

[0048] After adopting the above-mentioned structural design, the second clamping roller 42 with a larger outer diameter is located on the outside in the horizontal direction, while the first clamping roller 41 with a relatively smaller outer diameter is located on the inside in the horizontal direction, which is further beneficial to shortening the horizontal distance between the two die heads 31, thereby shortening the distance between the two output adhesive layers 84, shortening the transmission path, ensuring the quality of the composite film product 8, and reducing the size of the equipment and the space occupied.

[0049] A further improvement is that the spacing between the two composite rollers 4 is smaller than the outer diameter of the guide roller 5, and the outer diameter of the guide roller 5 is smaller than the outer diameter of the first clamping roller 41. This further reduces the size of the equipment and the space it occupies, which is beneficial to shorten the material transmission path and ensure the quality of the final composite film product 8.

[0050] Specifically, the outer diameter of the guide roller 5 is 80-120 mm, and the outer diameter of the first clamping roller 41 is 280-300 mm. Preferably, the outer diameter of the guide roller 5 is 100 mm, and the outer diameter of the first clamping roller 41 is 300 mm.

[0051] A further improvement is that the first clamping roller 41 is a rubber roller and the second clamping roller 42 is a cooling roller. After adopting the above design, during the extrusion process, the first clamping roller 41 can undergo a certain amount of slight elastic deformation, thereby ensuring the extrusion force between the first clamping roller 41 and the second clamping roller 42, ensuring that during the first lamination production process, the adhesive layer 84 output by the feed side die head 31 is firmly laminated and connected between one side of the non-woven fabric 81 and the thermal insulation film 82, and during the second lamination production, the adhesive layer 84 output by the discharge side die head 31 is firmly laminated and connected between the other side of the non-woven fabric 81 and the printed film 83, thereby ensuring the firmness of the connection between the layers in the composite film product 8, avoiding the occurrence of faults and stratification, and improving the product quality. The second clamping roller 42 adopts a cooling roller, which can cool the material after lamination to avoid excessive temperature. After being wound and collected on the winding roller 62, the materials will stick together, eventually causing the product to be scrapped.

[0052] A further improvement is that it also includes a shortening component 7, which is used to shorten the distance between the first clamping roller 41 and the second clamping roller 42 in the composite pair of rollers 4 to increase the squeezing force on both sides of the adhesive layer 84.

[0053] By means of the shortening component 7, the distance between the first clamping roller 41 and the second clamping roller 42 in the composite pair of rollers 4 can be reduced, thereby ensuring sufficient lamination force during the lamination production process, so that the two adhesive layers 84 are firmly laminated and connected between one side of the non-woven fabric 81 and the thermal insulation film 82 and between the other side of the non-woven fabric 81 and the printed film 83.

[0054] A further improvement is that the axis line position of the second clamping roller 42 is fixed, the axis line of the first clamping roller 41 is set to slide along the first direction, and the shortening component 7 is set between the same ends of the first clamping rollers 41 in the two compound roller pairs 4. The shortening component 7 is used to drive the axis lines of the first clamping rollers 41 in the two compound roller pairs 4 to move in opposite directions.

[0055] After adopting the above design, the position of the axis line of the second clamping roller 42 is fixed, and the axis line of the first clamping roller 41 can move along the first direction, and the shortening component 7 controls the change of the axis line position of the first clamping roller 41, so that the first clamping rollers 41 in the two composite roller pairs 4 move away from each other and lean against their respective corresponding second clamping rollers 42 to ensure the quality of the lamination.

[0056] A further improvement is that two shortening assemblies 7 are provided, which are respectively arranged at the two ends of the two composite roller pairs 4. With this design, during extrusion, the two ends of the first nip roller 41 in the composite roller pair 4 are subjected to uniform force to keep the axis of the first nip roller 41 horizontal, and cooperate with the second nip roller 42 to firmly laminate the adhesive layer 84 between the non-woven fabric 81 and the thermal insulation film 82 and between the non-woven fabric 81 and the printing film 83.

[0057] A further improvement is that a bearing 411 is connected to the end of the first clamping roller 41, and the shortening assembly 7 includes a telescopic unit 71 and abutment 72, the telescopic unit 71 drives the abutment 72 to move in the vertical direction, the inner ring of the bearing 411 is fixedly connected to the roller shaft of the first clamping roller 41, and the outer ring abuts against the abutment 72.

[0058] Specifically, Figure 7-Figure 9As shown, the composite pair of rollers 4 also includes two pairs of roller frames 43, both of which are fixed above the bottom plate 11, and the first clamping roller 41 and the second clamping roller 42 rotate around their own axis lines between the two pairs of roller frames 43, and the roller frames 43 are provided with a through-hole-shaped sliding opening 431 extending along the first direction, and a slider 412 is slidably fitted on the inner side of the sliding opening 431, and the roller shaft of the first clamping roller 41 is fixedly connected with the outer ring of the bearing 411 of the slider 412; in the shortening assembly 7, the telescopic unit 71 is an oil cylinder, and the cylinder barrel is arranged upward in the vertical direction and fixed above the bottom plate 11, and is connected to the abutment member 72, and the abutment member 72 includes an abutment frame 721 and rollers 722 arranged at both ends of the abutment frame 721, and the abutment frame 721 is fixed to the top end of the piston rod, and the axial direction of the roller 722 is parallel to the axial direction of the first clamping roller 41.

[0059] During lamination production, the telescopic unit 71 drives the abutment frame 721 to move upward, so that the rollers 722 at both ends move upward, and the rollers 722 at both ends respectively abut against the outer rings of the bearings 411 at the ends of the two first clamping rollers 41, thereby causing the two sliders 412 to move along the first direction close to the second clamping roller 42. While the two first clamping rollers 41 move away from each other, the distance between the first clamping rollers 41 and their respective corresponding second clamping rollers 42 is shortened, thereby ensuring that there is sufficient pressing force during lamination. Finally, the two adhesive layers 84 are firmly bonded between one side of the non-woven fabric 81 and the thermal insulation film 82 and between the other side of the non-woven fabric 81 and the printed film 83, respectively, thereby improving the quality of the composite film product 8.

[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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A compact composite non-woven fabric laminating production device, characterized in that: include: An unwinding assembly (2), wherein three unwinding assemblies (2) are provided, and are used to output the non-woven fabric (81), the thermal insulation film (82), and the printed film (83), respectively; A laminating assembly (3), the laminating assembly (3) comprising two die heads (31) for outputting an adhesive layer (84) downward, the two die heads (31) being arranged side by side and closely adjacent to each other along a first horizontal direction; A composite pair of rollers (4), the composite pair of rollers (4) comprising a first clamping roller (41) and a second clamping roller (42) whose axis lines are distributed along a first direction, the composite pair of rollers (4) being provided with two guide rollers (5) for guiding the transmission path of the non-woven fabric (81) and both being provided on the feed side, the gap between the first clamping roller (41) and the second clamping roller (42) in the two composite pair of rollers (4) being located directly below the two die heads (31) in a one-to-one correspondence, so as to sequentially connect the two sides of the adhesive layer (84) respectively outputted from the two die heads (31) with the thermal insulation film (82) and the printing film (83) by stacking, thereby forming a composite film product (8); A winding component (6), wherein the winding component (6) is used to wind and collect the composite film product (8).

2. The compact composite nonwoven fabric laminating production device according to claim 1 is characterized in that: The two composite roller pairs (4) are symmetrically distributed and the symmetry plane is perpendicular to the first direction.

3. The compact composite nonwoven fabric laminating production device according to claim 1 is characterized in that: The outer diameter of the first clamping roller (41) is smaller than the outer diameter of the second clamping roller (42), and the first clamping rollers (41) of the two composite roller pairs (4) are located between the second clamping rollers (42) of the two composite roller pairs (4).

4. The compact composite nonwoven fabric laminating production device according to claim 3 is characterized in that: The distance between the two composite roller pairs (4) is smaller than the outer diameter of the guide roller (5).

5. The compact composite nonwoven fabric laminating production device according to claim 4 is characterized in that: The outer diameter of the guide roller (5) is 80-120 mm.

6. The compact composite nonwoven fabric laminating production device according to claim 3 is characterized in that: The first clamping roller (41) is a rubber roller, and the outer diameter of the rubber roller is 280-300 mm.

7. The compact composite nonwoven fabric laminating production device according to claim 1 is characterized in that: It also includes a shortening assembly (7), wherein the shortening assembly (7) is used to shorten the distance between the first clamping roller (41) and the second clamping roller (42) in the composite pair of rollers (4), so as to increase the squeezing force on both sides of the adhesive layer (84).

8. The compact composite nonwoven fabric laminating production device according to claim 7 is characterized in that: The axis centerline of the second clamping roller (42) is fixed, the axis centerline of the first clamping roller (41) is arranged to slide along a first direction, the shortening component (7) is arranged between the same ends of the first clamping rollers (41) in the two compound roller pairs (4), and the shortening component (7) is used to drive the axis centerlines of the first clamping rollers (41) in the two compound roller pairs (4) to move in opposite directions.

9. The compact composite nonwoven fabric laminating production device according to claim 8, characterized in that: The end of the first clamping roller (41) is connected to a bearing (411); the shortening assembly (7) comprises a telescopic unit (71) and a supporting member (72); the telescopic unit (71) drives the supporting member (72) to move in a vertical direction; the inner ring of the bearing (411) is fixedly connected to the roller shaft of the first clamping roller (41), and the outer ring is in contact with the supporting member (72).

10. The compact composite nonwoven fabric laminating production device according to claim 8, characterized in that: Two of the shortening assemblies (7) are provided, and are disposed at the two ends of the two composite roller pairs (4).

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