Corrugated paper starch bonding device

Abstract

The invention belongs to the technical field of corrugated paper production, and particularly discloses a corrugated paper starch bonding device which comprises a protective cover and a starch adhesive, and a glue smearing rotation driving cylinder is rotationally arranged at the position, close to the rear side edge, between the inner walls of the two sides of the protective cover; a wave bending roller is arranged between the inner walls of the two sides of the protective cover and located below the glue smearing rotary driving cylinder, and the outer surface of the glue smearing rotary driving cylinder and the outer surface of the wave bending roller are both in a tooth shape. According to the device, in the process of coating the starch adhesive, the corrugated paper starch adhesive is discharged to the outside of the adhesive coating rotary driving barrel through the adhesive coating assembly, and meanwhile, when the corrugated paper starch adhesive enters the slow flow cavity, the situation that the slow flow cavity cannot be filled with the corrugated paper starch adhesive is prevented through the exhaust assembly; and after the starch adhesive is coated, the redundant corrugated paper starch adhesive on the outer surface of the adhesive coating rotary driving cylinder is scraped through the adhesive scraping device, and pollution caused by glue leakage is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paper production, in particular to a corrugated paper starch bonding device. Background Art

[0002] During the production process, the corrugated cardboard production line consists of two relatively independent process sections: the wet end and the dry end. Starch adhesive is used to bond the corrugated cardboard. This industrial adhesive is suitable for all paper product bonding machinery. It covers the entire paper packaging and paper product industry, and can be used in a variety of paper processing equipment, including automatic and semi-automatic laminating machines, paper barrel machines, and double-sided laminating machines for corrugated cardboard.

[0003] In the production process of corrugated cardboard, starch adhesive is needed to bond the corrugated cardboard. During bonding, the cardboard needs to be bent and coated with starch adhesive, and then the residual corrugated paper starch adhesive on the outer surface of the glue-applying rotating drive cylinder needs to be scraped off. Currently, a grinding plate is usually used to grind the outer surface of the glue-applying rotating drive cylinder to remove the residual corrugated paper starch adhesive on its outer surface. However, this friction method will damage the outer surface of the glue-applying rotating drive cylinder, and the residual corrugated paper starch adhesive rubbed off will form granules and scatter below, which is not convenient for collection. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a corrugated paper starch bonding device.

[0005] To achieve the above-mentioned purpose, the present invention provides a corrugated paper starch bonding device, comprising a protective cover and a starch adhesive, a glue-spreading rotating drive cylinder is rotatably arranged between the inner walls on both sides of the protective cover near the rear edge, and a wave-bending roller is arranged between the inner walls on both sides of the protective cover and below the glue-spreading rotating drive cylinder, the outer surface of the glue-spreading rotating drive cylinder and the outer surface of the wave-bending roller both have a tooth shape, and the tooth portion of the wave-bending roller extends toward the tooth root portion of the glue-spreading rotating drive cylinder.

[0006] A scraping device is provided between the inner walls on both sides of the protective cover, a gluing assembly is provided inside the gluing rotary driving cylinder, an exhaust assembly is provided inside the gluing rotary driving cylinder, a pressure roller is rotatably connected between the inner walls on both sides of the protective cover near the front edge, a support roller is rotatably provided between the inner walls on both sides of the protective cover below the pressure roller, a corrugated tile core paper piece is provided inside the protective cover, one side of the corrugated tile core paper piece is located between the gluing rotary driving cylinder and the corrugated bending roller, and the other side of the corrugated tile core paper piece is located between the pressure roller and the support roller, and the starch adhesive includes: 15-20 parts of corn starch degradation product, 2-4 parts of aloe vera gel, 1-3 parts of heavy calcium powder, 5-8 parts of urea-formaldehyde resin, 4-6 parts of amylase, 3-6 parts of tributyl phosphate, 2-4 parts of polyvinyl alcohol, 1-5 parts of chloroprene rubber powder, 1-3 parts of lignin, 2-7 parts of EVA emulsion, and 40-50 parts of deionized water.

[0007] Preferably, the scraper device includes an envelope-type recovery and conveying hood, one end of the envelope-type recovery and conveying hood is rotatably connected to the inner wall of one side of the protective hood, and the other end of the envelope-type recovery and conveying hood is fixed with a slip ring, one side of the slip ring is rotatably connected to the inner wall of the other side of the protective hood, one side of the envelope-type recovery and conveying hood is open, the top of the opening of the envelope-type recovery and conveying hood is in contact with the outer surface of the glue-spreading rotating drive cylinder, and the bottom of the opening of the envelope-type recovery and conveying hood extends to the bottom of the teeth of the glue-spreading rotating drive cylinder, and two support plates are fixed to the top of the envelope-type recovery and conveying hood, and a compression spring is fixed between the top of the two support plates and the inner top surface of the protective hood.

[0008] Preferably, a spiral stirring rod is rotatably connected between the inner walls of both sides of the envelope type recovery and conveying cover near the bottom edge, one end of the spiral stirring rod slides through to the outside of the protective cover, one end of the spiral stirring rod is fixed with a driven pulley, one end of the glue spreading rotating drive cylinder passes through the outside of the protective cover, one end of the glue spreading rotating drive cylinder is fixed with a driving pulley, a belt is connected between the outer surface of the driving pulley and the driven pulley, and a hose is connected to the bottom of the envelope type recovery and conveying cover near one side edge, and one end of the hose passes through the outside of the protective cover.

[0009] Preferably, the glue coating component includes a sealing patch, and a plurality of heating resistors are equidistantly arranged on the inside of the glue-spreading rotating driving cylinder near the teeth on the outer surface, and a plurality of slow flow cavities are opened on the inside of the glue-spreading rotating driving cylinder near the roots of the teeth on the outer surface. The bottom of the sealing patch and the bottom of the slow flow cavity are fitted together, and there is a gap between the two sides of the sealing patch and the two sides of the slow flow cavity. A plurality of protrusions are equidistantly fixed on the bottom of the sealing patch, and a plurality of through-holes that penetrate to the outer surface of the glue-spreading rotating driving cylinder are equidistantly opened on the inner bottom surface of the slow flow cavity.

[0010] Preferably, the plurality of protrusions are correspondingly slidably engaged between the inner walls of the through-holes, a hollow cavity is provided inside the plurality of protrusions, a feed port is provided on the inner walls on both sides of the plurality of hollow cavities near the top edge, a plurality of the feed ports are passed through to the outside of the protrusions, and two discharge ports are provided on the inner bottom surfaces of the plurality of hollow cavities that pass through to the outside. A guide rod is fixed on the top of the sealing patch, an inner cavity is provided inside the glue-applying rotating drive cylinder, the top of the guide rod slides through the inside of the inner cavity, a glue feeding tube is provided on one side of the protective cover, and one end of the glue feeding tube slides through the inside of the inner cavity.

[0011] Preferably, a pre-storage groove is provided at the top of the guide rod, and two bent flow channels are provided on the inner bottom surface of the pre-storage groove. One end of the two bent flow channels passes through the outside of the guide rod respectively, and contact blocks are fixed on the top of the sealing patch near the edges on both sides, and the tops of the two contact blocks slide through the outer surface of the glue-applying rotating drive cylinder.

[0012] Preferably, hollow cylindrical blocks are fixed on the inner top surface of the slow flow chamber near the edges on both sides, and guide rods are provided inside the two hollow cylindrical blocks. One end of the two guide rods slides through the outside of the hollow cylindrical blocks and is fixed on the sealing patch, and a reset spring is fixed between the other end of the two guide rods and the inner bottom surface of the hollow cylindrical blocks.

[0013] Preferably, the exhaust assembly includes a sliding rod, and an adjustment chamber is provided inside the glue-applying rotating drive cylinder, which is located above one side of the slow-flow chamber. The sliding rod is located inside the adjustment chamber, and a slide is fixed on the top of the sliding rod. The slide is slidably arranged between the inner walls of the adjustment chamber, and the bottom of the sliding rod slides through the interior of the slow-flow chamber. A floating plate is fixed on the bottom of the sliding rod, and the floating plate is located inside the slow-flow chamber. A storage groove is provided on the inner top surface of the slow-flow chamber.

[0014] Preferably, the float plate is located inside the storage groove, a through hole is provided inside the slide rod, one end of the through hole passes through the top of the slide rod, and the other end passes through the inside of the float plate, a plurality of side flow channels passing through the inside of the through hole are provided on the outer surface of the float plate, an air outlet is provided on the inner wall of one side of the regulating cavity, and one side of the air outlet passes through to the outside of the glue-applying rotating drive cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention places a corrugated paper core sheet inside a protective cover, conveys the corrugated paper core sheet through a support roller and a pressure roller, bends the corrugated paper core sheet through a wave bending roller and a glue-spreading rotary drive cylinder, and applies starch adhesive. During the starch adhesive application process, the glue-spreading component discharges the corrugated paper starch adhesive to the outside of the glue-spreading rotary drive cylinder. At the same time, when the corrugated paper starch adhesive enters the slow flow cavity, the exhaust component prevents the corrugated paper starch adhesive from failing to fill the slow flow cavity. After the starch adhesive is applied, the glue-scraping device scrapes off excess corrugated paper starch adhesive from the outer surface of the glue-spreading rotary drive cylinder. 2. In the present invention, when the scraping device is in operation, the support plate at the top of the envelope-type recovery conveyor hood is pressed by the compression spring, thereby pressing the open top of the envelope-type recovery conveyor hood against the outer surface of the glue-spreading rotary drive cylinder. This can scrape off excess corrugated paper starch adhesive produced by the glue-spreading rotary drive cylinder after the starch adhesive is applied. The scraped off corrugated paper starch adhesive falls into the interior of the envelope-type recovery conveyor hood. The spiral stirring rod pushes the corrugated paper starch adhesive to flow to one side of the envelope-type recovery conveyor hood and finally be discharged from the hose. 3. In the present invention, when the gluing assembly is working, when the teeth on the wave bending roller drive the corrugated corrugated core paper piece to engage with the tooth root position on the glue-spreading rotating drive cylinder, the two contact blocks will be pushed into the slow flow chamber, thereby driving the sealing patch to slide upward from the bottom of the slow flow chamber, so that the bottom of the protrusion slides to the upper part of the inside of the through-hole. At this time, the feed port and the inside of the slow flow chamber are connected to each other, and the corrugated paper starch adhesive located in the slow flow chamber flows into the interior of the hollow cavity through the feed port, and then flows out from the discharge port. The outflowing corrugated paper starch adhesive is located at the tooth root position on the glue-spreading rotating drive cylinder. At this time, the corrugated paper starch adhesive can be applied to the outer surface of the corrugated corrugated core paper piece; 4. In the present invention, when the exhaust component is working, after the corrugated paper starch adhesive is injected into the slow flow chamber, the corrugated paper starch adhesive will gradually fill up from the bottom of the slow flow chamber. During the filling process, the bottom of the float plate and the top surface of the corrugated paper starch adhesive liquid inside the slow flow chamber are in contact with each other, and slide upward as the corrugated paper starch adhesive liquid level rises. When there is air above the slow flow chamber, the air can flow into the through hole through the side flow channel, then enter the regulating chamber, and finally be discharged from the air outlet. When the corrugated paper starch adhesive inside the slow flow chamber is filled, the float plate will be lifted to the inside of the receiving groove. At this time, the outer surface of the float plate and the inner wall of the receiving groove are in contact with each other, and the side flow channel can be closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of a corrugated paper starch bonding device proposed by the present invention; Figure 2 This is a bottom-up perspective structural diagram of a corrugated paper starch bonding device proposed by the present invention; Figure 3 The present invention provides a schematic diagram of a front sectional three-dimensional structure of a corrugated paper starch bonding device; Figure 4 The present invention provides a schematic diagram of a corrugated paper starch bonding device from one side; Figure 5 This is a schematic diagram of the other side cross-sectional three-dimensional structure of a corrugated paper starch bonding device proposed by the present invention; Figure 6 For the present invention Figure 3 A partial enlarged view of point A in the middle; Figure 7 For the present invention Figure 4 A partial enlarged view of point B in the middle; Figure 8 For the present invention Figure 4 A partial enlarged view of point C in the middle; Figure 9 For the present invention Figure 5 A partial enlarged view of point D in the middle; Figure 10 For the present invention Figure 7 A partial enlarged view of the E position; Figure 11 The present invention provides a schematic diagram of the three-dimensional structure of a gluing component in a corrugated paper starch bonding device when it is opened for gluing.

[0017] Figure: 1, protective cover; 2, driving pulley; 3, driven pulley; 4, hose; 5, belt; 6, wave bending roller; 7, support roller; 8, corrugated core paper; 9, glue spreading rotary drive cylinder; 10, pressure roller; 11, inner cavity; 12, envelope type recovery conveying cover; 13, support plate; 14, compression spring; 15, glue feeding hose; 16, spiral stirring rod; 17, slow flow chamber; 18, sealing patch; 19, guide rod; 2 0. Heating resistance wire; 21. Bending flow channel; 22. Bump; 23. Hollow cavity; 24. Discharge port; 25. Feed port; 26. Through port; 27. Adjustment cavity; 28. Slide plate; 29. Slide rod; 30. Floating plate; 31. Side flow channel; 32. Storage groove; 33. Air outlet; 34. Through hole; 35. Hollow cylindrical block; 36. Guide rod; 37. Return spring; 38. Contact block; 39. Slip ring; 40. Pre-storage groove. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] See also Figure 1-11 The present invention provides a technical solution: a corrugated paper starch bonding device, comprising a protective cover 1 and a starch adhesive, a glue spreading rotating drive cylinder 9 is rotatably arranged between the inner walls on both sides of the protective cover 1 near the rear edge, a wave bending roller 6 is arranged between the inner walls on both sides of the protective cover 1 and below the glue spreading rotating drive cylinder 9, the outer surfaces of the glue spreading rotating drive cylinder 9 and the outer surfaces of the wave bending roller 6 are both tooth-shaped, and the tooth portion of the wave bending roller 6 extends toward the tooth root portion of the glue spreading rotating drive cylinder 9.

[0020] A scraping device is provided between the inner walls on both sides of the protective cover 1, a gluing assembly is provided inside the gluing rotating driving cylinder 9, an exhaust assembly is provided inside the gluing rotating driving cylinder 9, a pressure roller 10 is rotatably connected between the inner walls on both sides of the protective cover 1 near the front edge, a support roller 7 is rotatably provided below the pressure roller 10 between the inner walls on both sides of the protective cover 1, a corrugated tile core paper piece 8 is provided inside the protective cover 1, one side of the corrugated tile core paper piece 8 is located between the gluing rotating driving cylinder 9 and the corrugated bending roller 6, and the other side of the corrugated tile core paper piece 8 is located between the pressure roller 10 and the support roller 7, and the starch adhesive includes: 15-20 parts of corn starch degradation product, 2-4 parts of aloe vera gel, 1-3 parts of heavy calcium powder, 5-8 parts of urea-formaldehyde resin, 4-6 parts of amylase, 3-6 parts of tributyl phosphate, 2-4 parts of polyvinyl alcohol, 1-5 parts of chloroprene rubber powder, 1-3 parts of lignin, 2-7 parts of EVA emulsion, and 40-50 parts of deionized water.

[0021] The effect achieved is that the corrugated paper core sheet 8 is placed inside the protective cover 1, and the corrugated paper core sheet 8 is transported by the support roller 7 and the pressure roller 10, and is wave-bent by the wave bending roller 6 and the glue-spreading rotating drive cylinder 9 and coated with starch adhesive. During the starch adhesive coating process, the corrugated paper starch adhesive is discharged to the outside of the glue-spreading rotating drive cylinder 9 through the glue-spreading component. At the same time, when the corrugated paper starch adhesive enters the slow flow cavity 17, the exhaust component prevents the corrugated paper starch adhesive from failing to fill the slow flow cavity 17. After applying the starch adhesive, the excess corrugated paper starch adhesive on the outer surface of the glue-applying rotating drive cylinder 9 is scraped off by a scraping device, wherein the starch adhesive is prepared by mixing 15-20 parts of corn starch degradation product, 2-4 parts of aloe vera gel, 1-3 parts of heavy calcium powder, 5-8 parts of urea-formaldehyde resin, 4-6 parts of amylase, 3-6 parts of tributyl phosphate, 2-4 parts of polyvinyl alcohol, 1-5 parts of chloroprene rubber powder, 1-3 parts of lignin, 2-7 parts of EVA emulsion, and 40-50 parts of deionized water, and is located inside the slow flow cavity 17.

[0022] like Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 9As shown, the scraping device includes an envelope-type recovery and conveying cover 12, one end of the envelope-type recovery and conveying cover 12 is rotatably connected to the inner wall of one side of the protective cover 1, and the other end of the envelope-type recovery and conveying cover 12 is fixed with a slip ring 39, one side of the slip ring 39 is rotatably connected to the inner wall of the other side of the protective cover 1, and one side of the envelope-type recovery and conveying cover 12 is open. The top of the opening of the envelope-type recovery and conveying cover 12 fits with the outer surface of the glue-spreading rotating drive cylinder 9, and the bottom of the opening of the envelope-type recovery and conveying cover 12 extends to the bottom of the tooth shape of the glue-spreading rotating drive cylinder 9. Two support plates 13 are fixed on the top of the envelope-type recovery and conveying cover 12, and the tops of the two support plates 13 are A compression spring 14 is fixed between the top surface of the top and the inner surface of the protective cover 1, and a spiral stirring rod 16 is rotatably connected between the inner walls of the two sides of the envelope type recovery and conveying cover 12 near the bottom edge. One end of the spiral stirring rod 16 slides through the outside of the protective cover 1, and one end of the spiral stirring rod 16 is fixed with a driven pulley 3. One end of the glue spreading rotation drive cylinder 9 passes through the outside of the protective cover 1, and one end of the glue spreading rotation drive cylinder 9 is fixed with a driving pulley 2. A belt 5 is connected between the outer surface of the driving pulley 2 and the driven pulley 3. The bottom of the envelope type recovery and conveying cover 12 is connected to a hose 4 near one side edge, and one end of the hose 4 passes through the outside of the protective cover 1.

[0023] The effect achieved is that the support plate 13 on the top of the envelope type recovery conveying cover 12 is pressed by the compression spring 14, so that the open top of the envelope type recovery conveying cover 12 is pressed against the outer surface of the glue spreading rotating drive cylinder 9, and the excess corrugated paper starch adhesive produced by the glue spreading rotating drive cylinder 9 after the starch adhesive is applied can be scraped off, and the scraped corrugated paper starch adhesive falls into the interior of the envelope type recovery conveying cover 12, and the corrugated paper starch adhesive can be pushed to the envelope type recovery conveying cover 12 by the spiral stirring rod 16. The starch adhesive on the corrugated paper is prevented from dripping to the outside of the envelope type recovery conveying cover 12 after the corrugated paper starch adhesive is scraped off. At the same time, the bottom of the envelope type recovery conveying cover 12 can be made into an arc shape to collect the scraped corrugated paper starch adhesive, which is convenient for the spiral stirring rod 16 to push to one side of the envelope type recovery conveying cover 12.

[0024] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, the glue coating component includes a sealing patch 18, a plurality of heating resistors 20 are evenly arranged at the inner part of the glue-spreading rotating drive cylinder 9 near the outer surface of the teeth, a plurality of slow flow cavities 17 are opened at the inner part of the glue-spreading rotating drive cylinder 9 near the outer surface of the tooth root, the bottom of the sealing patch 18 and the bottom of the slow flow cavity 17 are fitted together, and there is a gap between the two sides of the sealing patch 18 and the two sides of the slow flow cavity 17, a plurality of protrusions 22 are evenly fixed on the bottom of the sealing patch 18, and the inner bottom surface of the slow flow cavity 17 is evenly opened. There are multiple through-holes 26 that penetrate the outer surface of the glue-spreading rotating drive cylinder 9, and multiple protrusions 22 are correspondingly slidably engaged between the inner walls of the through-holes 26. A hollow cavity 23 is opened inside the multiple protrusions 22, and a feed port 25 is opened near the top edge of the inner wall of the multiple hollow cavities 23 on both sides. The multiple feed ports 25 penetrate to the outside of the protrusions 22, and the inner bottom surface of the multiple hollow cavities 23 is provided with two discharge ports 24 that penetrate to the outside. The top of the sealing patch 18 is fixed with a guide rod 1 9, the interior of the glue-spreading rotary drive cylinder 9 is provided with an inner cavity 11, the top of the guide rod 19 slides through the interior of the inner cavity 11, a glue feeding tube 15 is provided on one side of the protective cover 1, one end of the glue feeding tube 15 slides through the interior of the inner cavity 11, the top of the guide rod 19 is provided with a pre-storage groove 40, the inner bottom surface of the pre-storage groove 40 is provided with two bent flow channels 21, one end of the two bent flow channels 21 is correspondingly passed through the outside of the guide rod 19, and the top of the sealing patch 18 is fixed near the edges on both sides. There is a contact block 38, and the tops of the two contact blocks 38 slide through the outer surface of the glue-spreading rotating drive cylinder 9. Hollow cylindrical blocks 35 are fixed on the inner top surface of the slow flow chamber 17 near the edges on both sides. Guide rods 36 are provided inside the two hollow cylindrical blocks 35. One end of the two guide rods 36 slides through the outside of the hollow cylindrical block 35 and is fixed on the sealing patch 18. A reset spring 37 is fixed between the other end of the two guide rods 36 and the inner bottom surface of the hollow cylindrical block 35.

[0025] The effect achieved is that when the teeth on the wave bending roller 6 drive the corrugated corrugated core paper piece 8 to engage with the tooth root position on the glue-spreading rotating drive cylinder 9, the two contact blocks 38 will be pushed into the slow flow chamber 17, thereby driving the sealing patch 18 to slide upward from the bottom of the slow flow chamber 17, so that the bottom of the protrusion 22 slides to the upper part of the inside of the through-port 26. At this time, the feed port 25 is connected to the inside of the slow flow chamber 17, and the corrugated paper starch adhesive located inside the slow flow chamber 17 flows into the inside of the hollow cavity 23 through the feed port 25, and then flows out from the discharge port 24. The outflowing corrugated paper starch adhesive is located at the tooth root position on the glue-spreading rotating drive cylinder 9. At this time, the corrugated paper starch adhesive can be applied to the outer surface of the corrugated corrugated core paper piece 8.

[0026] like Figure 4 and Figure 8As shown, the exhaust assembly includes a slide bar 29, and an adjusting chamber 27 is opened above one side of the slow flow chamber 17 inside the glue spreading rotating drive cylinder 9. The slide bar 29 is located inside the adjusting chamber 27, and a slide plate 28 is fixed on the top of the slide bar 29. The slide plate 28 is slidably arranged between the inner walls of the adjusting chamber 27, and the bottom of the slide bar 29 slides through the inside of the slow flow chamber 17. A floating plate 30 is fixed on the bottom of the slide bar 29, and the floating plate 30 is located inside the slow flow chamber 17. A receiving groove 32 is opened on the internal top surface of the slow flow chamber 17, and the floating plate 30 is located inside the receiving groove 32. A through hole 34 is opened inside the slide bar 29, and one end of the through hole 34 passes through the top of the slide bar 29, and the other end passes through the inside of the floating plate 30. The outer surface of the floating plate 30 is provided with a plurality of side flow channels 31 that pass through the inside of the through hole 34. An air outlet 33 is opened on one inner wall of the adjusting chamber 27, and one side of the air outlet 33 passes through to the outside of the glue spreading rotating drive cylinder 9.

[0027] The effect achieved is that after the corrugated paper starch adhesive is injected into the slow flow chamber 17, the corrugated paper starch adhesive will gradually fill up from the bottom of the slow flow chamber 17. During the filling process, the bottom of the floating plate 30 and the top surface of the corrugated paper starch adhesive liquid level inside the slow flow chamber 17 are in contact with each other, and slide upward as the corrugated paper starch adhesive liquid level rises. When there is air above the slow flow chamber 17, the air can flow into the through hole 34 through the side flow channel 31, and then enter the regulating chamber 27, and finally be discharged from the air outlet 33. When the corrugated paper starch adhesive inside the slow flow chamber 17 is filled, the floating plate 30 will be lifted to the inside of the receiving groove 32. At this time, the outer surface of the floating plate 30 and the inner wall of the receiving groove 32 are in contact with each other, and the side flow channel 31 can be closed.

[0028] In actual use, the present invention is as follows: the corrugated corrugated core paper sheet 8 is placed inside the protective cover 1, and the corrugated corrugated core paper sheet 8 is conveyed by the support roller 7 and the pressure roller 10, and is wave-bent by the wave bending roller 6 and the glue-spreading rotating drive cylinder 9 and coated with starch adhesive. During the starch adhesive coating process, the support plate 13 on the top of the envelope-type recovery conveying cover 12 is pressed by the compression spring 14, so that the open top of the envelope-type recovery conveying cover 12 is pressed and fitted on the outer surface of the glue-spreading rotating drive cylinder 9, and the glue-spreading rotating drive cylinder 9 can be produced after the starch adhesive is coated. The excess corrugated paper starch adhesive is scraped off and falls into the interior of the envelope type recovery conveying cover 12. The corrugated paper starch adhesive is pushed by the spiral stirring rod 16 so that the corrugated paper starch adhesive can flow to one side of the envelope type recovery conveying cover 12 and finally discharged from the hose 4. When the teeth on the wave bending roller 6 drive the pleated corrugated core paper sheet 8 to engage with the tooth root of the glue spreading rotating drive cylinder 9, the two contact blocks 38 are pushed into the slow flow chamber 17, thereby driving the sealing patch 18 to slide upward from the bottom of the slow flow chamber 17, so that the bottom of the protrusion 22 slides to Above the inside of the through-hole 26, the feed port 25 is connected to the inside of the slow-flow chamber 17, and the corrugated paper starch adhesive inside the slow-flow chamber 17 flows into the inside of the hollow cavity 23 through the feed port 25, and then flows out from the discharge port 24. The outflowing corrugated paper starch adhesive is located at the root of the tooth on the glue-spreading rotating drive cylinder 9. At this time, the corrugated paper starch adhesive can be applied to the outer surface of the pleated corrugated core paper sheet 8. After the corrugated paper starch adhesive is injected into the slow-flow chamber 17, the corrugated paper starch adhesive will gradually fill up from the bottom of the slow-flow chamber 17. During the filling process, The bottom of the middle floating plate 30 is in contact with the top surface of the corrugated paper starch adhesive liquid inside the slow flow chamber 17, and slides upward as the corrugated paper starch adhesive liquid level rises. When there is air above the slow flow chamber 17, the air can flow into the through hole 34 through the side flow channel 31, then enter the regulating chamber 27, and finally be discharged from the air outlet 33. When the corrugated paper starch adhesive inside the slow flow chamber 17 is filled, the floating plate 30 will be lifted to the inside of the receiving groove 32. At this time, the outer surface of the floating plate 30 is in contact with the inner wall of the receiving groove 32, and the side flow channel 31 can be closed.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corrugated paper starch bonding device, characterized in that: It comprises a protective cover (1) and a starch adhesive, wherein a glue spreading rotating drive cylinder (9) is rotatably provided between the inner walls on both sides of the protective cover (1) near the rear edge, and a wave bending roller (6) is provided between the inner walls on both sides of the protective cover (1) below the glue spreading rotating drive cylinder (9), wherein the outer surface of the glue spreading rotating drive cylinder (9) and the outer surface of the wave bending roller (6) both have tooth shapes, and the tooth portion of the wave bending roller (6) extends toward the tooth root portion of the glue spreading rotating drive cylinder (9); A scraping device is provided between the inner walls on both sides of the protective cover (1), a glue coating assembly is provided inside the glue spreading rotary drive cylinder (9), an exhaust assembly is provided inside the glue spreading rotary drive cylinder (9), a pressure roller (10) is rotatably connected between the inner walls on both sides of the protective cover (1) near the front edge, a support roller (7) is rotatably provided below the pressure roller (10) between the inner walls on both sides of the protective cover (1), a corrugated core paper sheet (8) is provided inside the protective cover (1), and the corrugated core paper sheet (8) is provided at the bottom of the pressure roller (10). ) is located between the glue-spreading rotating drive cylinder (9) and the corrugated bending roller (6), and the other side of the corrugated corrugated core paper sheet (8) is located between the pressing roller (10) and the supporting roller (7). The starch adhesive comprises: 15-20 parts of corn starch degradation product, 2-4 parts of aloe vera gel, 1-3 parts of heavy calcium powder, 5-8 parts of urea-formaldehyde resin, 4-6 parts of amylase, 3-6 parts of tributyl phosphate, 2-4 parts of polyvinyl alcohol, 1-5 parts of chloroprene rubber powder, 1-3 parts of lignin, 2-7 parts of EVA emulsion, and 40-50 parts of deionized water.

2. The corrugated paper starch bonding device according to claim 1, characterized in that: The scraping device includes an envelope-type recovery conveying hood (12), one end of the envelope-type recovery conveying hood (12) is rotatably connected to the inner wall of one side of the protective hood (1), and the other end of the envelope-type recovery conveying hood (12) is fixed with a slip ring (39), one side of the slip ring (39) is rotatably connected to the inner wall of the other side of the protective hood (1), one side of the envelope-type recovery conveying hood (12) is open, the top of the opening of the envelope-type recovery conveying hood (12) is in contact with the outer surface of the glue-spreading rotating drive cylinder (9), and the bottom of the opening of the envelope-type recovery conveying hood (12) extends to the lower side of the tooth shape of the glue-spreading rotating drive cylinder (9), and two support plates (13) are fixed to the top of the envelope-type recovery conveying hood (12), and a compression spring (14) is fixed between the top of the two support plates (13) and the inner top surface of the protective hood (1).

3. The corrugated paper starch bonding device according to claim 2, characterized in that: A spiral stirring rod (16) is rotatably connected between the inner walls of both sides of the envelope-type recovery conveying cover (12) near the bottom edge, one end of the spiral stirring rod (16) slides through the outside of the protective cover (1), one end of the spiral stirring rod (16) is fixed with a driven pulley (3), one end of the glue spreading rotating drive cylinder (9) is passed through the outside of the protective cover (1), one end of the glue spreading rotating drive cylinder (9) is fixed with a driving pulley (2), a belt (5) is connected between the outer surface of the driving pulley (2) and the driven pulley (3), and a hose (4) is connected to the bottom of the envelope-type recovery conveying cover (12) near one side edge, and one end of the hose (4) is passed through the outside of the protective cover (1).

4. The corrugated paper starch bonding device according to claim 3, characterized in that: The glue coating component includes a sealing patch (18), a plurality of heating resistors (20) are equidistantly arranged inside the glue coating rotating drive cylinder (9) near the outer surface teeth, a plurality of slow flow chambers (17) are opened inside the glue coating rotating drive cylinder (9) near the outer surface tooth roots, the bottom of the sealing patch (18) and the bottom of the slow flow chamber (17) are in contact with each other, and gaps are left between the two sides of the sealing patch (18) and the two sides of the slow flow chamber (17), a plurality of protrusions (22) are equidistantly fixed to the bottom of the sealing patch (18), and a plurality of through openings (26) are equidistantly opened on the inner bottom surface of the slow flow chamber (17) and penetrate to the outer surface of the glue coating rotating drive cylinder (9).

5. The corrugated paper starch bonding device according to claim 4, characterized in that: The plurality of protrusions (22) are correspondingly slidably engaged between the inner walls of the through opening (26), the interiors of the plurality of protrusions (22) are provided with hollow cavities (23), the inner walls on both sides of the plurality of hollow cavities (23) are provided with feed ports (25) near the top edge, the plurality of feed ports (25) are extended to the outside of the protrusions (22), the inner bottom surfaces of the plurality of hollow cavities (23) are provided with two discharge ports (24) extending to the outside, a guide rod (19) is fixed to the top of the sealing patch (18), an inner cavity (11) is provided inside the glue-applying rotating drive cylinder (9), the top of the guide rod (19) slides through the interior of the inner cavity (11), a glue feeding tube (15) is provided on one side of the protective cover (1), and one end of the glue feeding tube (15) slides through the interior of the inner cavity (11).

6. The corrugated paper starch bonding device according to claim 5, characterized in that: A pre-storage groove (40) is provided on the top of the guide rod (19), and two bent flow channels (21) are provided on the inner bottom surface of the pre-storage groove (40). One end of each of the two bent flow channels (21) passes through the outside of the guide rod (19). Contact blocks (38) are fixed on the top of the sealing patch (18) near the edges on both sides, and the tops of the two contact blocks (38) slide through the outer surface of the glue-applying rotating drive cylinder (9).

7. The corrugated paper starch bonding device according to claim 6, characterized in that: A hollow cylindrical block (35) is fixed to the inner top surface of the slow flow chamber (17) near the edges on both sides, and a guide rod (36) is provided inside the two hollow cylindrical blocks (35). One end of the two guide rods (36) slides through the outside of the hollow cylindrical block (35) and is fixed on the sealing patch (18). A return spring (37) is fixed between the other end of the two guide rods (36) and the inner bottom surface of the hollow cylindrical block (35).

8. The corrugated paper starch bonding device according to claim 7, characterized in that: The exhaust assembly includes a slide rod (29), an adjustment chamber (27) is provided inside the glue-spreading rotating drive cylinder (9) and located above one side of the slow-flow chamber (17), the slide rod (29) is located inside the adjustment chamber (27), a slide plate (28) is fixed on the top of the slide rod (29), the slide plate (28) is slidably arranged between the inner walls of the adjustment chamber (27), the bottom of the slide rod (29) slides through the inside of the slow-flow chamber (17), a floating plate (30) is fixed on the bottom of the slide rod (29), the floating plate (30) is located inside the slow-flow chamber (17), and a receiving groove (32) is provided on the inner top surface of the slow-flow chamber (17).

9. The corrugated paper starch bonding device according to claim 8, characterized in that: The floating plate (30) is located inside the receiving groove (32), and a through hole (34) is provided inside the sliding rod (29). One end of the through hole (34) passes through the top of the sliding rod (29), and the other end passes through the inside of the floating plate (30). The outer surface of the floating plate (30) is provided with a plurality of side flow channels (31) that pass through the inside of the through hole (34). An air outlet (33) is provided on the inner wall of one side of the regulating chamber (27), and one side of the air outlet (33) passes through the outside of the glue-spreading rotating drive cylinder (9).

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