A composite lamination device for paper towel production

Abstract

The present invention relates to the technical field of composite lamination devices, and discloses a composite lamination device for paper towel production, comprising a frame, a composite pressing roller, a guide roller, a tensioning roller and a composite paper towel, wherein the composite pressing roller, the guide roller and the tensioning roller are all installed inside the frame, and a dust removal mechanism and a roll-off mechanism are also provided inside the frame; the composite lamination device, by providing a dust removal mechanism, uses a dust suction pipe to generate a negative pressure airflow to vacuum the side opposite to the composite paper towel to be composited, and by providing a roll-off mechanism, uses a blow box to blow the airflow to between the composite paper towel and the composite pressing roller after the composite is composited, so as to separate the composite paper towel from the composite pressing roller, avoid the composite paper towel and the composite pressing roller from sticking to each other, thereby ensuring the composite effect, and at the same time, the airflow blown out by the blow box can also clean the dust sticking to the surface of the composite pressing roller, so as to avoid the dust being squeezed into the fibers of the composite paper towel.

Description

Technical Field

[0001] The invention relates to the technical field of composite lamination devices, in particular to a composite lamination device for paper towel production. Background Art

[0002] Paper towels are thin sheets of sanitary products used for cleaning and wiping. When laminating paper towels, two or more rollers are usually set up to sandwich multiple layers of paper towels. Pressure is applied by the rotation of the rollers to make the paper towel layers tightly combined. The surface of the roller usually has a certain degree of roughness or pattern to increase friction, prevent paper from sliding, and make the lamination effect better.

[0003] Chinese patent application CN118721954A discloses a roller-type laminating hot melt adhesive laminating machine, which removes dust from the side of the material to be laminated by providing a dust removal mechanism.

[0004] However, since the dust removal mechanism uses a dust removal scraper to scrape off dust, the structure of the scraper can easily damage the surface of the material to be laminated; and, when the laminating machine is laminating paper towels, the paper towels may become sticky after being laminated through the laminating roller. Especially for laminating machine equipment that uses hot melt adhesive to assist in laminating, the hot melt adhesive may pass through the gaps in the paper towels or overflow from the edge of the material, thereby causing the paper towels to stick to the laminating roller. In a short period of time after laminating, the viscosity of the hot melt adhesive is not fully exerted. The sticking of the paper towels and the laminating roller may cause the already laminated paper towels to become delaminated. Moreover, for laminating machine equipment that uses an embossing roller for laminating, the concave and convex patterns on the embossing roller may also cause the fibers of the paper towels to be caught, causing the paper towels to stick to the laminating roller, thereby causing the laminated paper towels to become delaminated, affecting the laminating quality. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a composite lamination device for paper towel production, which has the advantages of contactless dust removal and avoiding adhesion between the pressing roller and the paper towel, thereby solving the problems mentioned in the above background technology.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A composite lamination device for paper towel production, comprising a frame, a composite pressing roller, a guide roller, a tensioning roller and a composite paper towel, wherein the composite pressing roller, the guide roller and the tensioning roller are all installed inside the frame, and a dust removal mechanism and a roller stripping mechanism are also arranged inside the frame;

[0010] The dust removal mechanism includes a dust suction pipe, a dust collection box, a filter screen and a screen cleaning component. The dust suction pipe is arranged between the composite paper towels that have not been fully composited. The dust collection box is arranged on one side of the frame and is used to collect dust sucked by the dust suction pipe. The filter screen is installed inside the dust collection box and is used to filter the air entering the dust collection box. The screen cleaning component is used to clean the filter screen so that the dust stuck on the filter screen falls off.

[0011] The roll-off mechanism comprises a blowing box, a deflection plate and a deflection assembly, wherein the blowing box is arranged on a side of the composite pressure roller away from the tensioning roller, and blows the composite paper towel to be composited by blowing out airflow, so as to avoid the composite paper towel to be composited and the composite pressure roller from sticking, the deflection plate is rotatably installed inside the blowing box, and the deflection assembly is used to control the reciprocating swing of the deflection plate, so as to change the flow direction of the airflow when it is blown out from the inside of the blowing box;

[0012] The frame is also provided with a swing mechanism, which is used to control the dust suction pipe and the blow box to swing up and down, thereby expanding the air extraction range of the dust suction pipe and the air supply range of the blow box;

[0013] The composite paper towel passes over the guide roller and the tension roller, and passes between the opposite composite pressing rollers for composite.

[0014] Preferably, a rubber roller is arranged between the guide roller and the tensioning roller, the rubber roller is rotatably installed inside the frame, and the rubber rollers are close to each other, the dust suction pipe is arranged between the rubber roller and the tensioning roller, and the suction end of the dust suction pipe faces the rubber roller, and a lead-out roller is arranged on the side of the composite pressure roller away from the tensioning roller, and the composite paper towel that has completed the composite passes between the two opposite lead-out rollers, the blowing box is arranged between the composite pressure roller and the lead-out pressure roller, and the blowing boxes are respectively arranged on both sides of the composite paper towel.

[0015] Preferably, a lamination motor is fixedly mounted on one side outer wall of the frame, and the driving end of the lamination motor is fixedly connected to the composite pressing roller, and the composite pressing rollers are respectively a convex embossing roller and a concave embossing roller, and the patterns on the surfaces of the convex embossing roller and the concave embossing roller are adapted.

[0016] Preferably, a fan is fixedly installed on the top of the dust box, and the filter screen divides the interior of the dust box into a dust bin and a clean air bin. One end of the dust bin is connected to an air guide hose, and the other end of the air guide hose is connected to the dust outlet end of the dust suction pipe, the air exhaust end of the fan is connected to the interior of the clean air bin, and the air delivery end of the fan is connected to the air inlet end of the blow box.

[0017] Preferably, the screen cleaning component includes a scraper, a cleaning motor and a screw rod, the scraper is slidably installed inside the dust bin, the cleaning motor is fixedly installed outside the dust box, and the driving end of the cleaning motor is fixedly connected to the screw rod, and the screw rod is threadedly connected to the scraper.

[0018] Preferably, the direction-changing assembly includes a rotating shaft, a gear and a slide plate. The rotating shaft rotates and passes through an inner wall of one side of the blow box to extend to the outside of the blow box, and the rotating shaft is fixedly connected to the direction-changing plate. The gear and the slide plate are both arranged on the outside of the blow box. The gear is fixedly mounted on the rotating shaft. Sliding blocks are fixedly mounted on both ends of the slide plate. A guide plate is fixedly mounted on the outer wall of the blow box. A sliding hole adapted to slide with the sliding block is opened on one side of the guide plate, and one side of the slide plate is meshed with the gear.

[0019] Preferably, the direction changing assembly also includes a fan-shaped toothed disc, an eccentric wheel and a direction changing control motor, the fan-shaped toothed disc and the eccentric wheel are both arranged on the outside of the blow box, a mounting shaft is rotatably mounted at the center of the fan circle on the fan-shaped toothed disc, the mounting shaft is fixedly mounted on the outer wall of the blow box, the direction changing control motor is fixedly mounted on the outside of the blow box, and the driving end of the direction changing control motor is fixedly connected to the eccentric wheel, the fan-shaped surface of the fan-shaped toothed disc is meshed with the other side surface of the skateboard, and a driving slide hole is provided at the end of the fan-shaped toothed disc away from the fan-shaped surface, an eccentric rod is fixedly mounted at a position deviated from the center of the circle on the eccentric wheel, and the eccentric rod is slidably connected to the driving slide hole.

[0020] Preferably, a branch hose is fixedly installed on the air supply end of the blower, and the two ends of the branch hose away from the blower are connected to the interior of the blow box. A partition is also provided inside the blow box, and exhaust outlets are equidistantly provided on the partition. The partition is arranged between the air inlet end of the blow box and the turning plate, and the exhaust outlet is arranged between two adjacent turning plates.

[0021] Preferably, one end of the dust suction pipe passes through the inner wall of the frame and extends to the outside thereof, both ends of the blow box are fixedly installed with connecting shafts, one end of the connecting shaft passes through the inner wall of the frame and extends to the outside of the frame and is rotatably connected to the frame, the swing mechanism includes a rotating plate, a connecting plate and a guide rod, the rotating plates are respectively installed on the dust suction pipe and the connecting shaft, and a straight slot hole is provided on the rotating plate, sliders are fixedly installed on the ends of the connecting plates, the sliders are slidably installed inside the straight slot holes, the guide rod is fixedly installed on one side wall of the frame, and the connecting plate is slidably connected to the guide rod.

[0022] Preferably, the swing mechanism also includes a swing control motor and a reciprocating screw, the swing control motor is fixedly mounted on a side wall of the frame, and the driving end of the swing control motor is fixedly connected to the reciprocating screw, and the reciprocating screw is threadedly connected to one end of the connecting plate.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a composite lamination device for paper towel production, which has the following beneficial effects:

[0025] 1. The composite lamination device is provided with a dust removal mechanism, and uses a vacuum tube to generate a negative pressure airflow to vacuum the side opposite to the composite paper towel to be composited. By providing a roller-removing mechanism, a blow box is used to blow the airflow between the composite paper towel and the composite pressing roller after the composite is completed, so that the composite paper towel and the composite pressing roller can be separated to avoid the composite paper towel and the composite pressing roller from sticking to each other, thereby ensuring the composite effect. At the same time, the airflow blown out by the blow box can also clean the dust sticking to the surface of the composite pressing roller to avoid the dust being squeezed into the fibers of the composite paper towel. By providing a swinging mechanism, the vacuum tube and the blow box can swing up and down, so that the flow range of the airflow is larger, thereby expanding the dust removal area.

[0026] 2. The composite lamination device is provided with a fan, a dust collecting box and a filter screen. The fan is used to filter the air around the dust suction pipe through the filter screen inside the dust collecting box and then blow it out from the blow box. The air flow is used to circulate inside the composite lamination device to reduce the frequency of air flowing from the external environment to the inside of the composite lamination device, thereby reducing the probability of dust entering the interior of the composite lamination device. At the same time, by providing a screen cleaning component, it is convenient to clean the filter screen.

[0027] 3. The composite pressing device uses a deflection plate and a deflection assembly to allow the airflow blown out of the blowing box to swing horizontally, so that the dust sticking in the gap of the composite pressing roller can be blown by the airflow at different angles, thereby improving the dust removal effect on the composite pressing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural cross-sectional view of the composite lamination device of the present invention;

[0029] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged local structure at point A in the middle;

[0030] Figure 3 This is one of the three-dimensional structural schematic diagrams of the composite lamination device of the present invention;

[0031] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at B in the middle;

[0032] Figure 5 It is a schematic diagram of the internal structure of the dust collecting box in the composite lamination device of the present invention;

[0033] Figure 6 This is the second schematic diagram of the three-dimensional structure of the composite lamination device of the present invention;

[0034] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the local structure at C in the middle;

[0035] Figure 8 For the present invention Figure 6 A magnified schematic diagram of the local structure at D in the middle;

[0036] Fig. 9 It is a schematic diagram of the internal structure of the blowing box in the composite lamination device of the present invention;

[0037] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the local structure at E in the middle;

[0038] Fig.11 This is the third schematic diagram of the three-dimensional structure of the composite lamination device of the present invention.

[0039] In the figure:

[0040] 1. Frame; 11. Composite pressure roller; 12. Guide roller; 13. Tension roller; 14. Rubber roller; 15. Export pressure roller; 16. Lamination motor; 17. Fan; 18. Branch hose;

[0041] 2. Composite tissue;

[0042] 3. Dust removal mechanism; 31. Dust suction pipe; 32. Dust collection box; 321. Dust bin; 322. Clean air bin; 33. Filter;

[0043] 34. Screen cleaning parts; 341. Scraper; 342. Cleaning motor; 343. Screw rod;

[0044] 35. Gas hose;

[0045] 4. Roller-off mechanism; 41. Blowing box; 411. Connecting shaft; 412. Guide plate; 413. Sliding hole; 414. Partition plate; 415. Exhaust port; 42. Direction-changing plate; 43. Direction-changing assembly; 431. Rotating shaft; 432. Gear; 433. Slide plate; 434. Fan-shaped toothed disc; 435. Eccentric wheel; 436. Sliding block; 437. Mounting shaft; 438. Direction-changing control motor; 439. Driving sliding hole;

[0046] 5. Swing mechanism; 51. Turn plate; 511. Straight slot hole; 52. Connecting plate; 521. Sliding block; 53. Guide rod; 54. Swing control motor; 55. Reciprocating screw. DETAILED DESCRIPTION

[0047] The following will be combined with the 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 without creative work are within the scope of protection of the present invention. Embodiment 1

[0048] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Fig.11 The present invention provides a composite lamination device for paper towel production, comprising a frame 1, a composite pressing roller 11, a guide roller 12, a tensioning roller 13 and a composite paper towel 2, wherein the composite pressing roller 11, the guide roller 12 and the tensioning roller 13 are all installed inside the frame 1, and a dust removal mechanism 3 and a roller removal mechanism 4 are also arranged inside the frame 1;

[0049] The dust removal mechanism 3 includes a dust suction pipe 31, a dust collecting box 32, a filter 33, and a net cleaning component 34. The dust suction pipe 31 is arranged between the composite paper towels 2 that have not been completed, the dust collecting box 32 is arranged on one side of the frame 1, and is used to collect dust sucked by the dust suction pipe 31. The filter 33 is installed inside the dust collecting box 32, and is used to filter the air entering the dust collecting box 32. The net cleaning component 34 is used to clean the filter 33, so that the dust stuck on the filter 33 falls off.

[0050] The roll-off mechanism 4 includes a blowing box 41, a deflection plate 42 and a deflection assembly 43. The blowing box 41 is arranged on the side of the composite pressure roller 11 away from the tension roller 13, and blows the composite paper towel 2 that has been composited by blowing out airflow to avoid the composite paper towel 2 that has been composited from sticking to the composite pressure roller 11. The deflection plate 42 is rotatably installed inside the blowing box 41, and the deflection assembly 43 is used to control the reciprocating swing of the deflection plate 42, and is used to change the flow direction of the airflow when it is blown out from the inside of the blowing box 41.

[0051] The frame 1 is also provided with a swing mechanism 5, which is used to control the dust suction pipe 31 and the blowing box 41 to swing up and down, thereby expanding the air extraction range of the dust suction pipe 31 and the air supply range of the blowing box 41;

[0052] The composite paper towel 2 passes over the guide roller 12 and the tension roller 13 and passes between the opposite composite pressing rollers 11 for composite.

[0053] As can be seen from the above, the composite lamination device, by providing a dust removal mechanism 3, uses a dust suction pipe 31 to generate a negative pressure airflow to vacuum the side opposite to the composite paper towel 2 to be composited, and by providing a roller-off mechanism 4, uses a blowing box 41 to blow the airflow between the composite paper towel 2 and the composite pressing roller 11 after the composite is completed, so as to separate the composite paper towel 2 from the composite pressing roller 11, and avoid the composite paper towel 2 and the composite pressing roller 11 from sticking, thereby ensuring the composite effect. At the same time, the airflow blown out by the blowing box 41 can also clean the dust sticking to the surface of the composite pressing roller 11, and avoid the dust being squeezed into the fibers of the composite paper towel 2. By providing a swing mechanism 5, the dust suction pipe 31 and the blowing box 41 can swing up and down, so that the flow range of the airflow is larger, thereby expanding the dust removal area;

[0054] When using the device, the composite paper towel 2 to be compounded is passed through the interior of the frame 1 in the order of the guide roller 12, the tensioning roller 13 and the composite pressure roller 11, and the composite paper towel 2 that has been compounded is rolled up by the winding device; during the compounding process, the dust suction tube 31 is close to the uncompounded part of the composite paper towel 2 to suck away the dust stuck on the compounding surface; the airflow blown out from the blowing box 41 impacts the composite pressure roller 11 and the composite paper towel 2 where the compounding is completed, and the air pressure is used to separate the composite pressure roller 11 and the composite paper towel 2 that are stuck together, and at the same time, the airflow blown out from the blowing box 41 can also blow up the dust stuck to the composite pressure roller 11 and the composite paper towel 2, and the composite pressure roller 11 is cleaned by the airflow blowing, which can protect the smoothness and texture of the surface of the composite pressure roller 11 and extend the service life of the composite pressure roller 11. Embodiment 2

[0055] like Figure 1 and Fig.11 As shown, the difference between this embodiment and the above embodiment is that a rubber roller 14 is arranged between the guide roller 12 and the tensioning roller 13, the rubber roller 14 is rotatably installed inside the frame 1, and the rubber rollers 14 are close to each other, the dust suction pipe 31 is arranged between the rubber roller 14 and the tensioning roller 13, and the suction end of the dust suction pipe 31 faces the rubber roller 14, and a lead-out roller 15 is arranged on the side of the composite pressure roller 11 away from the tensioning roller 13, and the composite paper towel 2 that has completed the composite passes between the two opposite lead-out rollers 15, and the blow box 41 is arranged between the composite pressure roller 11 and the lead-out pressure roller 15, and the blow boxes 41 are respectively arranged on both sides of the composite paper towel 2.

[0056] It can be seen from the above that when the rubber roller 14 is pressed on the wrinkled composite paper towel 2, the rubber will deform according to the shape of the surface of the composite paper towel 2, so that it can fit the contour of the paper towel, whether it is the convex part or the concave part of the wrinkle. At the same time, in this embodiment, since the two rubber rollers 14 are close to each other, the dust suction tube 31 is close to the two composite paper towels 2 at the same time, and only one dust suction tube 31 is needed to simultaneously remove dust and clean the opposite sides of the two composite paper towels 2; by providing the derivation pressure roller 15, the blower box 41 can blow out airflow to clean the dust on the surface of the composite pressure roller 11 and the composite paper towel 2, and the composite paper towel 2 will not swing at will.

[0057] A lamination motor 16 is fixedly mounted on one side outer wall of the frame 1, and a driving end of the lamination motor 16 is fixedly connected to a composite pressing roller 11. The composite pressing roller 11 is a convex embossing roller and a concave embossing roller respectively, and the patterns on the surfaces of the convex embossing roller and the concave embossing roller are adapted.

[0058] As can be seen from the above, by setting the lamination motor 16, it is used to drive the composite pressure roller 11 to rotate. In addition, in order to prevent the airflow from damaging the composite paper towel 2, the wind force that prevents the composite pressure roller 11 and the composite paper towel 2 from sticking together is small. When the laminating machine adopts hot melt adhesive to assist in laminating, if the concentration or temperature of the hot melt adhesive deviates from the set standard by a large margin, due to the large viscosity between the composite paper towel 2 and the composite pressure roller 11, the separation of the composite pressure roller 11 and the composite paper towel 2 may not be achieved. However, for the case where the composite pressure roller 11 is a convex embossing roller and a concave embossing roller respectively, during the laminating process, the composite pressure roller 11 and the composite paper towel 2 will not become sticky and unable to be separated due to the wear of the composite pressure roller 11. Embodiment 3

[0059] like Figure 2 - Fig.10 As shown, the difference between this embodiment and the above embodiment is that a fan 17 is fixedly installed on the top of the dust box 32, and the filter screen 33 divides the interior of the dust box 32 into a dust bin 321 and a clean air bin 322. One end of the dust bin 321 is connected to an air guide hose 35, and the other end of the air guide hose 35 is connected to the dust outlet end of the dust suction pipe 31, the air exhaust end of the fan 17 is connected to the interior of the clean air bin 322, and the air delivery end of the fan 17 is connected to the air inlet end of the blowing box 41.

[0060] As can be seen from the above, since the filter 33 divides the interior of the dust box 32 into a dust bin 321 and a clean air bin 322 , the fan 17 extracts the filtered air in the clean air bin 322 , and the dust-laden air absorbed by the dust suction pipe 31 is sucked into the dust bin 321 .

[0061] The screen cleaning component 34 includes a scraper 341, a cleaning motor 342 and a screw 343. The scraper 341 is slidably installed inside the dust bin 321, the cleaning motor 342 is fixedly installed outside the dust box 32, and the driving end of the cleaning motor 342 is fixedly connected to the screw 343, and the screw 343 is threadedly connected to the scraper 341.

[0062] As can be seen from the above, when the cleaning motor 342 is working, the screw rod 343 rotates to drive the scraper 341 threadedly connected thereto to slide linearly, so that the scraper 341 cleans one side of the filter screen 33 .

[0063] The direction-changing assembly 43 includes a rotating shaft 431, a gear 432 and a slide plate 433. The rotating shaft 431 rotates through an inner wall of one side of the blow box 41 and extends to the outside of the blow box 41. The rotating shaft 431 is fixedly connected to the direction-changing plate 42. The gear 432 and the slide plate 433 are both arranged on the outside of the blow box 41. The gear 432 is fixedly installed on the rotating shaft 431. Sliding blocks 436 are fixedly installed at both ends of the slide plate 433. A guide plate 412 is fixedly installed on the outer wall of the blow box 41. A sliding hole 413 slidably adapted to the sliding block 436 is opened on one side of the guide plate 412. One side of the slide plate 433 is meshedly connected with the gear 432.

[0064] As can be seen from the above, since the sliding block 436 fixedly installed on the slide plate 433 is slidably connected to the guide plate 412 fixedly installed on the outer wall of the blow box 41 through the sliding hole 413, and one side of the slide plate 433 is set to a tooth surface that is adapted to mesh with the gear 432, the slide plate 433 can push the rotating shaft 431 fixedly connected to the gear 432 to rotate when it slides.

[0065] The direction changing assembly 43 also includes a sector toothed disc 434, an eccentric wheel 435 and a direction changing control motor 438. The sector toothed disc 434 and the eccentric wheel 435 are both arranged on the outside of the blow box 41. A mounting shaft 437 is rotatably mounted at the center of the sector circle on the sector toothed disc 434. The mounting shaft 437 is fixedly mounted on the outer wall of the blow box 41. The direction changing control motor 438 is fixedly mounted on the outside of the blow box 41, and the driving end of the direction changing control motor 438 is fixedly connected to the eccentric wheel 435. The sector surface of the sector toothed disc 434 is meshed with the other side surface of the slide plate 433, and a driving slide hole 439 is opened at one end of the sector toothed disc 434 away from the sector surface. An eccentric rod is fixedly mounted at a position deviating from the center of the circle on the eccentric wheel 435, and the eccentric rod is slidably connected to the driving slide hole 439.

[0066] As can be seen from the above, since the position of the fan-shaped toothed disc 434 is rotatably installed on the blow box 41 through the installation shaft 437, when the fan-shaped toothed disc 434 rotates, its fan-shaped surface always rotates along the fan-shaped circle center as the axis. Therefore, when the fan-shaped toothed disc 434 rotates, it can drive the slide plate 433 that is meshed with it and can only slide to slide; since the eccentric rod installed on the eccentric wheel 435 is slidably connected to the driving slide hole 439 opened at the end of the fan-shaped toothed disc 434 away from the fan-shaped surface, when the eccentric wheel 435 rotates, it can drive the fan-shaped toothed disc 434 to swing back and forth, thereby making the slide plate 433 move back and forth in a straight line, thereby making the change plate 42 fixedly installed on the rotating shaft 431 swing back and forth, so that the wind direction of the airflow blown out from the blow box 41 changes continuously.

[0067] A branch hose 18 is fixedly installed at the air supply end of the fan 17. The two ends of the branch hose 18 away from the fan 17 are connected to the interior of the blow box 41. A partition 414 is also provided inside the blow box 41. Exhaust ports 415 are equidistantly provided on the partition 414. The partition 414 is arranged between the air inlet end of the blow box 41 and the deflection plate 42, and the exhaust ports 415 are arranged between two adjacent deflection plates 42.

[0068] As can be seen from the above, by providing the branch hose 18, the airflow output by the fan 17 can be delivered to the two blowing boxes 41, and by providing the partition 414 and the exhaust port 415, the airflow can be output from between two adjacent deflection plates 42, thereby reducing the problem of large differences in airflow sizes at different positions. Embodiment 4

[0069] like Figure 4 As shown, the difference between this embodiment and the above-mentioned embodiment lies in that one end of the dust suction pipe 31 passes through the inner wall of the frame 1 and extends to the outside thereof, both ends of the blow box 41 are fixedly installed with connecting shafts 411, one end of the connecting shaft 411 passes through the inner wall of the frame 1 and extends to the outside of the frame 1 and is rotatably connected to the frame 1, the swing mechanism 5 includes a rotating plate 51, a connecting plate 52 and a guide rod 53, the rotating plate 51 is respectively installed on the dust suction pipe 31 and the connecting shaft 411, and a straight slot hole 511 is opened on the rotating plate 51, the ends of the connecting plate 52 are fixedly installed with sliders 521, the sliders 521 are slidably installed in the straight slot hole 511, the guide rod 53 is fixedly installed on one side wall of the frame 1, and the connecting plate 52 is slidably connected to the guide rod 53.

[0070] As can be seen from the above, when the connecting plate 52 moves up and down, the slider 521 slides inside the straight slot hole 511, pushing the rotating plate 51 to rotate, so that the dust suction tube 31 and the blowing box 41 can swing up and down.

[0071] The swing mechanism 5 also includes a swing control motor 54 and a reciprocating screw 55. The swing control motor 54 is fixedly mounted on a side wall of the frame 1, and the driving end of the swing control motor 54 is fixedly connected to the reciprocating screw 55. The reciprocating screw 55 is threadedly connected to one end of the connecting plate 52.

[0072] As can be seen from the above, by providing the swing control motor 54 and the reciprocating screw 55, when the swing control motor 54 is working, the reciprocating screw 55 drives the connecting plate 52 threadedly connected thereto to move reciprocally up and down.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite laminating device for paper towel production, comprising a frame, a composite pressing roller, a guide roller, a tensioning roller and a composite paper towel, characterized in that: The composite pressing roller, guide roller and tensioning roller are all installed inside the frame, and a dust removal mechanism and a roller stripping mechanism are also arranged inside the frame; The dust removal mechanism includes a dust suction pipe, a dust collection box, a filter screen and a screen cleaning component. The dust suction pipe is arranged between the composite paper towels that have not been fully composited. The dust collection box is arranged on one side of the frame and is used to collect dust sucked by the dust suction pipe. The filter screen is installed inside the dust collection box and is used to filter the air entering the dust collection box. The screen cleaning component is used to clean the filter screen so that the dust stuck on the filter screen falls off. The roll-off mechanism comprises a blowing box, a deflection plate and a deflection assembly, wherein the blowing box is arranged on a side of the composite pressure roller away from the tensioning roller, and blows the composite paper towel to be composited by blowing out airflow, so as to avoid the composite paper towel to be composited and the composite pressure roller from sticking, the deflection plate is rotatably installed inside the blowing box, and the deflection assembly is used to control the reciprocating swing of the deflection plate, so as to change the flow direction of the airflow when it is blown out from the inside of the blowing box; The frame is also provided with a swing mechanism, which is used to control the dust suction pipe and the blow box to swing up and down, thereby expanding the air extraction range of the dust suction pipe and the air supply range of the blow box; The composite paper towel passes over the guide roller and the tension roller, and passes between the opposite composite pressing rollers for composite.

2. A composite lamination device for paper towel production according to claim 1, characterized in that: A rubber roller is arranged between the guide roller and the tensioning roller, the rubber roller is rotatably installed inside the frame, and the rubber rollers are close to each other, the dust suction pipe is arranged between the rubber roller and the tensioning roller, and the suction end of the dust suction pipe faces the rubber roller, and a lead-out roller is arranged on the side of the composite pressing roller away from the tensioning roller, and the composite paper towel that has completed the composite passes between the two opposite lead-out pressing rollers, the blowing box is arranged between the composite pressing roller and the lead-out pressing roller, and the blowing boxes are respectively arranged on both sides of the composite paper towel.

3. A composite lamination device for paper towel production according to claim 1, characterized in that: A lamination motor is fixedly mounted on one side outer wall of the frame, and a driving end of the lamination motor is fixedly connected to a composite pressing roller, wherein the composite pressing rollers are respectively a convex embossing roller and a concave embossing roller, and the patterns on the surfaces of the convex embossing roller and the concave embossing roller are adapted.

4. A composite lamination device for producing tissue paper according to claim 1, characterized in that: A fan is fixedly installed on the top of the dust box, and the filter screen divides the interior of the dust box into a dust bin and a clean air bin. One end of the dust bin is connected to an air guide hose, and the other end of the air guide hose is connected to the dust outlet end of the dust suction pipe, the air exhaust end of the fan is connected to the interior of the clean air bin, and the air delivery end of the fan is connected to the air inlet end of the blow box.

5. The composite lamination device for paper towel production according to claim 1, characterized in that: The screen cleaning component includes a scraper, a cleaning motor and a screw rod. The scraper is slidably installed inside the dust bin, the cleaning motor is fixedly installed outside the dust box, and the driving end of the cleaning motor is fixedly connected to the screw rod, and the screw rod is threadedly connected to the scraper.

6. A composite lamination device for paper towel production according to claim 1, characterized in that: The direction-changing assembly includes a rotating shaft, a gear and a slide plate. The rotating shaft rotates and passes through an inner wall of one side of the blow box to extend to the outside of the blow box, and the rotating shaft is fixedly connected to the direction-changing plate. The gear and the slide plate are both arranged on the outside of the blow box. The gear is fixedly mounted on the rotating shaft. Sliding blocks are fixedly mounted on both ends of the slide plate. A guide plate is fixedly mounted on the outer wall of the blow box. A sliding hole that is slidably adapted to the sliding block is opened on one side of the guide plate. One side of the slide plate is meshed with the gear.

7. A composite lamination device for producing tissue paper according to claim 6, characterized in that: The direction changing assembly also includes a sector toothed disc, an eccentric wheel and a direction changing control motor, the sector toothed disc and the eccentric wheel are both arranged on the outside of the blow box, a mounting shaft is rotatably mounted at the center of the sector circle on the sector toothed disc, the mounting shaft is fixedly mounted on the outer wall of the blow box, the direction changing control motor is fixedly mounted on the outside of the blow box, and the driving end of the direction changing control motor is fixedly connected to the eccentric wheel, the sector surface of the sector toothed disc is meshed with the other side surface of the skateboard, and a driving sliding hole is provided at the end of the sector toothed disc away from the sector surface, an eccentric rod is fixedly mounted at a position deviating from the center of the circle on the eccentric wheel, and the eccentric rod is slidably connected to the driving sliding hole.

8. A composite lamination device for producing tissue paper according to claim 4, characterized in that: A branch hose is fixedly installed on the air supply end of the fan, and the two ends of the branch hose away from the fan are connected to the interior of the blow box. A partition is also provided inside the blow box, and exhaust outlets are equidistantly provided on the partition. The partition is arranged between the air inlet end of the blow box and the turning plate, and the exhaust outlet is arranged between two adjacent turning plates.

9. A composite lamination device for paper towel production according to claim 1, characterized in that: One end of the dust suction pipe passes through the inner wall of the frame and extends to the outside thereof, and connecting shafts are fixedly installed at both ends of the blow box, and one end of the connecting shaft passes through the inner wall of the frame and extends to the outside of the frame and is rotatably connected to the frame. The swing mechanism includes a rotating plate, a connecting plate and a guide rod, and the rotating plates are respectively installed on the dust suction pipe and the connecting shaft, and straight slot holes are opened on the rotating plate, and sliders are fixedly installed on the ends of the connecting plates, and the sliders are slidably installed in the straight slot holes, and the guide rod is fixedly installed on one side wall of the frame, and the connecting plate is slidably connected to the guide rod.

10. A composite lamination device for producing tissue paper according to claim 9, characterized in that: The swing mechanism also includes a swing control motor and a reciprocating screw. The swing control motor is fixedly mounted on a side wall of the frame, and the driving end of the swing control motor is fixedly connected to the reciprocating screw. The reciprocating screw is threadedly connected to one end of the connecting plate.

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