A glue amount self-adaptive feedback gluing device for a corrugated paperboard production line

Abstract

The utility model provides a kind of glue amount self-adapting feedback gluing device for corrugated board production line, belong to corrugated board production field, it solves the problem such as the existing gluing device cannot detect glue layer thickness and carry out self-adaptive adjustment.Electrodeposition frame mechanism is equipped with glue coating sub roller, glue coating main roller, embossing roller two and embossing roller one in the inside, the left side of electrodeposition frame mechanism is equipped with drive motor one and drive motor two, the right side of electrodeposition frame mechanism is equipped with drive motor four, the inside of electrodeposition frame mechanism is equipped with glue receiving mechanism and glue scraping mechanism.The utility model can evenly apply glue on glue coating main roller, ensure that glue layer is uniform, can be rolled to form corrugated board, glue is coated on corrugated board, complete even and accurate gluing, can detect glue layer thickness, when thickness is too large, scrape redundant glue layer, when thickness is too small, control glue amount, adjust the thickness of glue outside glue coating main roller, carry out self-adaptive adjustment, when working condition changes, adjust the thickness of gluing, ensure that glue amount is even.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated cardboard production technology, and relates to an adaptive feedback glue coating device, particularly an adaptive feedback glue coating device for corrugated cardboard production lines. Background Technology

[0002] Corrugated cardboard, also known as corrugated paperboard, is a multi-layered adhesive. It consists of at least one layer of corrugated core paper and one layer of cardboard bonded together. Corrugated cardboard has good elasticity and extensibility, and can withstand collisions and drops during handling. Corrugated cardboard is mainly used to manufacture cartons, carton fillings, and other packaging materials for fragile goods.

[0003] However, existing glue coating devices generally do not actively intervene after the parameters are set. But there are many working conditions in the corrugated paper production process that can lead to inconsistent glue layer thickness, making it impossible to automatically detect and adaptively adjust to ensure uniform glue coating.

[0004] Therefore, we propose an adaptive feedback glue coating device for corrugated cardboard production lines. This device can evenly apply glue to the main coating roller, ensuring a uniform glue layer for subsequent coating. It can roll and form corrugated boards, applying glue to the flutes to achieve uniform and accurate coating. The device can detect the glue layer thickness; if the thickness is too large, it scrapes off the excess glue; if the thickness is too small, it controls the self-supply of glue and adjusts the thickness and uniformity of the glue on the outside of the main coating roller, thus achieving adaptive adjustment. It can adjust the coating thickness according to changes in operating conditions, ensuring uniform, accurate, and stable glue application, effectively reducing defects such as glue spots and delamination, and optimizing glue costs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an adaptive feedback gluing device for corrugated cardboard production lines. The technical problem this invention aims to solve is: how to detect the glue thickness during the gluing process on corrugated paper using the gluing device, and adaptively adjust the glue amount based on the glue thickness to ensure uniform gluing.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An adaptive feedback glue application device for corrugated cardboard production line includes a glue application frame mechanism. The inner side of the glue application frame mechanism, from front to back, is provided with a glue application auxiliary roller, a glue application main roller, an embossing roller two, and an embossing roller one. Both the embossing roller two and the embossing roller one have several circumferentially distributed corrugated teeth, and the corrugated teeth of the embossing roller two mesh with the corrugated teeth of the embossing roller one. Both the embossing roller two and the embossing roller one are equipped with several weight sensors. The left side of the glue application frame mechanism is provided with a drive motor one and a drive motor two. The rotating shafts of the embossing roller one and the glue application main roller are connected to the output shaft of the drive motor two via pulley pairs. The rotating shaft of the embossing roller two is also connected to the output shaft of the drive motor one via a pulley pair. The right side of the glue application frame mechanism is provided with a drive motor four. The inner side of the glue application frame mechanism is provided with a glue receiving mechanism and a glue scraping mechanism. The glue scraping mechanism is equipped with several infrared thickness sensors. The glue receiving mechanism is connected to the output shaft of the drive motor four via a drive motor. The glue application frame mechanism is connected to an external glue pump via a pipeline.

[0008] The working principle of this utility model is as follows: During the application of glue, an external glue pump pumps glue into the space between the main glue-applying roller and the auxiliary glue-applying roller. Then, the output shaft of the second drive motor drives the main glue-applying roller to rotate. When the main glue-applying roller rotates, the main glue-applying roller and the auxiliary glue-applying roller cooperate to evenly apply the glue between the main glue-applying roller and the auxiliary glue-applying roller onto the main glue-applying roller. The glue drips that leak from between the main glue-applying roller and the auxiliary glue-applying roller fall onto the glue-receiving mechanism and are collected to avoid polluting the working environment.

[0009] During corrugated board production, the corrugated core paper is fed to embossing roller one, where it winds around the corrugating teeth. It then passes through the meshing point between embossing roller one and embossing roller two. After being rolled by the combined action of the corrugating teeth of embossing roller one and embossing roller two, a corrugated board is formed and adhered to several corrugating teeth of embossing roller two. Subsequently, driven by embossing roller two, the corrugated board's crests approach the glue-applying main roller. As embossing roller two rotates, the glue from the outer side of the glue-applying main roller is applied to the crests of the corrugated board, completing the glue application. Several infrared thickness sensors on the glue-applying mechanism detect the glue layer thickness on the crests of the corrugated board and compare it with a set glue layer thickness. Yes, the weight sensors on embossing roller 2 and embossing roller 1 detect the weight of the corrugated paper before and after gluing, which is used to comprehensively measure the glue layer thickness. If there is a deviation from the set thickness, when the glue layer is thin, the glue supply of the external glue pump is automatically adjusted, and the distance between the main glue roller and the auxiliary glue roller is adjusted, thereby controlling the thickness and uniformity of the glue on the outside of the main glue roller. When the glue layer is thick, the angle of the scraping mechanism and the distance between the scraping mechanism and the outside of the main glue roller are adjusted, and the excess glue on the outside of the main glue roller is scraped off, thereby controlling the thickness of the glue on the outside of the main glue roller, so that the glue layer thickness coated on the corrugated board reaches the set thickness, realizing closed-loop feedback control.

[0010] When the speed, thickness, and weight of corrugated paper change, adjustments can be made through the glue scraping mechanism and the glue coating frame mechanism. Adjusting the glue coating auxiliary roller, the second embossing roller, and the first embossing roller can adjust the glue coating thickness, ensuring uniform, accurate, and stable glue application, effectively reducing defects such as glue spots and delamination, and optimizing glue costs.

[0011] The glue-receiving mechanism is located below the glue-applying auxiliary roller and the glue-applying main roller, and the glue-scraping mechanism is located below the embossing roller two and the embossing roller one. The distance between the end of the glue-scraping mechanism and the outer side of the glue-applying main roller is greater than the minimum distance between the end of the corrugated teeth of the embossing roller two and the outer side of the glue-applying main roller. The distance between the end of the corrugated teeth of the embossing roller two and the outer side of the glue-applying main roller is less than the minimum distance between the outer side of the glue-applying main roller and the outer side of the glue-applying auxiliary roller.

[0012] By adopting the above structure, the thickness of the glue scraping is controlled by controlling the distance between the end of the glue scraping mechanism and the outer side of the glue coating main roller, thus ensuring that the glue layer is consistent. By controlling the distance between the end of the corrugated teeth of the embossing roller II and the outer side of the glue coating main roller, the contact area between the corrugated paper crest and the glue layer on the outer side of the glue coating main roller is controlled, thus controlling the thickness of the glue layer.

[0013] The glue coating frame mechanism includes a glue coating machine frame, two left-right symmetrically arranged adjustment seats 1, two left-right symmetrically arranged adjustment seats 2, and two left-right symmetrically arranged adjustment seats 3. A fixing plate is fixed to the upper inner side of the glue coating machine frame. The fixing plate is provided with several evenly distributed glue spray heads, which are located directly above the middle part of the glue coating main roller and the glue coating auxiliary roller. Two left-right symmetrically arranged electric push rods 1 are provided on the front side of the glue coating machine frame. The telescopic ends of the electric push rods 1 are fixedly connected to the adjustment seats 1 on the same side. Two left-right symmetrically arranged electric push rods 2 and two left-right symmetrically arranged electric push rods 5 are provided on the rear side of the glue coating machine frame. The telescopic ends of the electric push rods 2 are fixedly connected to the adjustment seats 2 on the same side, and the telescopic ends of the electric push rods 5 are fixedly connected to the adjustment seats 3 on the same side. Drive motor 1 and drive motor 2 are both fixed on the left side of the glue coating machine frame, and drive motor 4 is fixed on the right side of the glue coating machine frame.

[0014] With the above structure, when the speed, thickness, and weight of the corrugated paper change and need adjustment, the telescopic ends of the two electric push rods 1 drive the corresponding adjustment seat 1 to slide on the front side of the glue coating frame, thereby driving the glue coating auxiliary roller to move and adjust the gap distance between the glue coating auxiliary roller and the glue coating main roller, thereby adjusting the glue layer thickness on the glue coating main roller. The telescopic end of the electric push rod 2 drives the corresponding adjustment seat 2 to slide on the rear side of the glue coating frame, and the telescopic end of the electric push rod 5 drives the corresponding adjustment seat 3 to slide on the rear side of the glue coating frame, thereby adjusting the distance between the embossing roller 1 and the embossing roller 2, thus adapting to the glue coating needs under different working conditions and ensuring uniform glue coating. When adding glue, the external glue pump pumps out the glue and sprays it between the glue coating auxiliary roller and the glue coating main roller through several glue spraying heads.

[0015] The two adjusting seats 1 are slidably disposed on the front side of the glue coating machine frame, the two adjusting seats 2 and the two adjusting seats 3 are slidably disposed on the rear side of the glue coating machine frame, and the adjusting seats 3 are all located above the adjusting seats 2. The rotating shaft of the glue coating auxiliary roller is rotatably disposed between the two adjusting seats 1, the glue coating main roller is rotatably disposed on the inner side of the glue coating machine frame, the rotating shaft of the embossing roller 2 is rotatably disposed between the two adjusting seats 2, and the rotating shaft of the embossing roller 1 is rotatably disposed between the two adjusting seats 3.

[0016] With the above structure, the glue-applying auxiliary roller is installed through two adjusting seats one, the embossing roller one is installed through two adjusting seats three, and the embossing roller two is installed through two adjusting seats two. All of them are slidably set on the glue-applying frame for easy position adjustment.

[0017] The glue-scraping mechanism includes a fixed shaft, which is fixedly installed on the inner side of the glue-applying frame. Two hinge seats are fixed on the fixed shaft, each hinged with an electric push rod four. Two rotating slides are rotatably mounted on the fixed shaft, both located inside the hinge seats on the same side. The telescopic end of the electric push rod four is hinged to the rear end of the rotating slide. An electric push rod three is provided on the upper rear side of each rotating slide. Mounting plates are slidably mounted on the two rotating slides. The mounting plates are fixedly connected to the telescopic ends of the two electric push rods three. A glue scraper is detachably mounted on the mounting plates. Several infrared thickness sensors are mounted on the mounting plates.

[0018] With the above structure, during adjustment, the telescopic end of the electric push rod four drives the rotating slide to rotate on the fixed shaft, adjusting the angle of the rotating slide. The rotating slide then drives the mounting plate and the scraper blade to adjust their angles. The telescopic ends of the two electric push rods three drive the mounting plate to slide on the two rotating slides, thereby driving the scraper blade to move, thus adjusting the angle of the scraper blade and its distance from the main coating roller.

[0019] The adhesive receiving mechanism includes a drive shaft, which is rotatably mounted inside the adhesive coating frame. The end of the drive shaft passes through the adhesive coating frame and is connected to the output shaft of the drive motor. Two symmetrically arranged fixed seats are rotatably mounted on the drive shaft. Two symmetrically arranged drive gears are fixed on the drive shaft. The drive gears are both located inside the fixed seats on the same side. The two fixed seats are respectively fixed on the left and right sides inside the adhesive coating frame. Support racks are slidably mounted inside the fixed seats. The support racks mesh with the drive gears on the same side. An adhesive receiving hopper is fixed between the upper ends of the two support racks.

[0020] With the above structure, the output shaft of the drive motor drives the transmission shaft to rotate, and the transmission shaft drives two drive gears to drive the transmission. The drive gears mesh with the support racks at the corresponding positions, thereby driving the two support racks to slide inside the fixed seats at the corresponding positions, thereby driving the glue collecting hopper to move. The glue collecting hopper collects the glue that leaks between the glue coating auxiliary roller and the glue coating main roller, avoiding pollution of the working environment, reusing the glue, and reducing waste.

[0021] Compared with existing technologies, the adaptive feedback glue application device for this corrugated cardboard production line has the following advantages:

[0022] 1. The output shaft of the second drive motor drives the main coating roller to rotate, and works with the auxiliary coating roller and the external glue pump to evenly apply glue to the main coating roller, ensuring a uniform glue layer for subsequent glue application.

[0023] 2. The corrugated board is formed by the cooperation of embossing roller one and embossing roller two. Under the drive of embossing roller two, the peaks of the corrugated board are brought close to the glue coating roller. The glue on the outside of the glue coating roller is applied to the peaks of the corrugated board, thus completing the uniform and accurate glue coating.

[0024] 3. The glue layer thickness on the corrugated board peaks is detected by the glue scraping mechanism. If the glue layer thickness is too large, the angle of the glue scraping mechanism is adjusted to scrape off the excess glue layer on the outside of the main glue coating roller. If the glue layer thickness is too small, the glue supply of the external glue pump is automatically adjusted to enhance the thickness and uniformity of the glue on the outside of the main glue coating roller, thereby achieving adaptive adjustment.

[0025] 4. By adjusting the glue scraping mechanism, glue coating frame mechanism, glue coating auxiliary roller, embossing roller two and embossing roller one, the glue coating thickness can be adjusted when the speed, thickness and weight of corrugated paper change, ensuring that the glue amount is uniform, accurate and stable, effectively reducing defects such as glue spots and glue delamination and optimizing glue costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front three-dimensional structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the rear three-dimensional structure of this utility model.

[0028] Figure 3 This is a schematic diagram of the upper three-dimensional structure of the glue scraping mechanism in this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the lower side of the glue scraping mechanism in this utility model.

[0030] Figure 5 This is a schematic diagram of the upper three-dimensional structure of the adhesive bonding mechanism in this utility model.

[0031] Figure 6 This is a three-dimensional structural diagram of the lower side of the adhesive-jointing mechanism in this utility model.

[0032] In the diagram, 1. Embossing roller one; 2. Embossing roller two; 3. Fixed plate; 4. Glue applicator frame; 5. Electric push rod one; 6. Glue applicator main roller; 7. Glue applicator auxiliary roller; 8. Glue receiving mechanism; 9. Adjusting seat one; 10. Drive motor one; 11. Drive motor two; 12. Adjusting seat two; 13. Electric push rod two; 14. Glue scraping mechanism; 15. Support rack; 16. Drive motor four; 17. Glue scraper; 18. Mounting plate; 19. Fixed shaft; 20. Hinge seat; 21. Electric push rod three; 22. Electric push rod four; 23. Rotating slide; 24. Transmission shaft; 25. Fixed seat; 26. Glue receiving hopper. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] like Figures 1-6 As shown, the adaptive feedback glue application device for this corrugated cardboard production line includes a glue application frame mechanism. The inner side of the glue application frame mechanism, from front to back, is equipped with a glue application auxiliary roller 7, a glue application main roller 6, an embossing roller 2, and an embossing roller 1. Both the embossing roller 2 and the embossing roller 1 have several circumferentially distributed corrugated teeth, and the corrugated teeth of the embossing roller 2 mesh with the corrugated teeth of the embossing roller 1. Both the embossing roller 2 and the embossing roller 1 are equipped with several weight sensors. The left side of the glue application frame mechanism is equipped with a drive motor 10 and a drive motor 11. The rotating shaft of roller 1 and the rotating shaft of the main roller 6 are both connected to the output shaft of the drive motor 11 via a pulley pair. The rotating shaft of the embossing roller 2 is connected to the output shaft of the drive motor 10 via a pulley pair. The right side of the glue applicator mechanism is equipped with a drive motor 16. The inner side of the glue applicator mechanism is equipped with a glue receiving mechanism 8 and a glue scraping mechanism 14. The glue scraping mechanism 14 is equipped with several infrared thickness sensors. The glue receiving mechanism 8 is connected to the output shaft of the drive motor 16 via a drive. The glue applicator mechanism is connected to the external glue pump via a pipeline.

[0035] In this embodiment, during the application of adhesive, an external adhesive pump pumps adhesive into the space between the main adhesive roller 6 and the auxiliary adhesive roller 7. Subsequently, the output shaft of the drive motor 11 drives the main adhesive roller 6 to rotate. When the main adhesive roller 6 rotates, the main adhesive roller 6 and the auxiliary adhesive roller 7 cooperate to evenly apply the adhesive between the main adhesive roller 6 and the auxiliary adhesive roller 7 onto the main adhesive roller 6. Adhesive drips that leak from between the main adhesive roller 6 and the auxiliary adhesive roller 7 fall onto the adhesive receiving mechanism 8 and are collected to avoid contaminating the working environment.

[0036] During corrugated board production, the corrugated core paper is fed to embossing roller 1. The core paper is wound around the corrugating teeth of embossing roller 1 and passes through the meshing point of embossing roller 1 and embossing roller 2. After being rolled by the combined action of the corrugating teeth of embossing roller 1 and embossing roller 2, a corrugated board is formed and adhered to several corrugating teeth of embossing roller 2. Subsequently, driven by embossing roller 2, the corrugated board's crests approach the glue-applying main roller 6. As embossing roller 2 rotates, the glue on the outside of the glue-applying main roller 6 is applied to the crests of the corrugated board, completing the glue application. Several infrared thickness sensors on the glue-applying mechanism 14 detect the glue layer thickness on the crests of the corrugated board and compare it with a set glue layer thickness. Yes, the weight sensors on embossing roller 2 and embossing roller 1 detect the weight of the corrugated paper before and after gluing, and are used to comprehensively measure the thickness of the glue layer. If there is a deviation from the set thickness, when the glue layer is thin, the glue supply of the external glue pump is automatically adjusted, and the distance between the main glue roller 6 and the auxiliary glue roller 7 is adjusted, thereby controlling the thickness and uniformity of the glue on the outside of the main glue roller 6. When the glue layer is thick, the angle of the scraping mechanism 14 and the distance between the scraping mechanism 14 and the outside of the main glue roller 6 are adjusted, and the excess glue on the outside of the main glue roller 6 is scraped off, thereby controlling the thickness of the glue on the outside of the main glue roller 6, so that the thickness of the glue layer coated on the corrugated board reaches the set thickness, realizing closed-loop feedback control.

[0037] When the speed, thickness, and weight of corrugated paper change, the glue application mechanism 14 and the glue coating frame mechanism can be adjusted to adjust the glue coating thickness by adjusting the glue coating auxiliary roller 7, the embossing roller 2, and the embossing roller 1, thereby ensuring that the glue amount is uniform, accurate, and stable, effectively reducing defects such as glue spots and glue delamination, and optimizing glue costs.

[0038] The glue receiving mechanism 8 is located below the glue coating auxiliary roller 7 and the glue coating main roller 6. The glue scraping mechanism 14 is located below the embossing roller 2 and the embossing roller 1. The distance between the end of the glue scraping mechanism 14 and the outer side of the glue coating main roller 6 is greater than the minimum distance between the corrugated tooth end of the embossing roller 2 and the outer side of the glue coating main roller 6. The distance between the corrugated tooth end of the embossing roller 2 and the outer side of the glue coating main roller 6 is less than the minimum distance between the outer side of the glue coating main roller 6 and the outer side of the glue coating auxiliary roller 7.

[0039] In this embodiment, the thickness of the glue is controlled by controlling the distance between the end of the glue scraping mechanism 14 and the outer side of the glue coating main roller 6, thereby ensuring that the glue layer is consistent. The contact area between the corrugated paper crest and the glue layer on the outer side of the glue coating main roller 6 is controlled by controlling the distance between the corrugated paper crest and the glue layer on the outer side of the glue coating main roller 6, thereby controlling the thickness of the glue layer.

[0040] The glue coating frame mechanism includes a glue coating frame 4, two symmetrically arranged adjusting seats 9, two symmetrically arranged adjusting seats 12, and two symmetrically arranged adjusting seats 3. A fixing plate 3 is fixed to the upper inner side of the glue coating frame 4. The fixing plate 3 is provided with several evenly distributed glue spraying heads, which are located directly above the middle part of the glue coating main roller 6 and the glue coating auxiliary roller 7. Two symmetrically arranged electric push rods 5 are provided on the front side of the glue coating frame 4. The telescopic ends of the electric push rods 5 are fixedly connected to the adjusting seats 9 on the same side. Two symmetrically arranged electric push rods 13 and two symmetrically arranged electric push rods 5 are provided on the rear side of the glue coating frame 4. The telescopic ends of the electric push rods 13 are fixedly connected to the adjusting seats 12 on the same side, and the telescopic ends of the electric push rods 5 are fixedly connected to the adjusting seats 3 on the same side. Drive motors 10 and 21 are fixed on the left side of the glue coating frame 4, and drive motor 416 is fixed on the right side of the glue coating frame 4.

[0041] In this embodiment, when the speed, thickness, and weight of the corrugated paper change and need adjustment, the telescopic ends of the two electric push rods 15 drive the corresponding adjustment seat 9 to slide on the front side of the glue coating frame 4, thereby driving the glue coating auxiliary roller 7 to move and adjusting the gap distance between the glue coating auxiliary roller 7 and the glue coating main roller 6, thereby adjusting the glue layer thickness on the glue coating main roller 6. The telescopic end of the electric push rod 23 drives the corresponding adjustment seat 22 to slide on the rear side of the glue coating frame 4, and the telescopic end of the electric push rod 5 drives the corresponding adjustment seat 3 to slide on the rear side of the glue coating frame 4, thereby adjusting the distance between the embossing roller 11 and the embossing roller 22, thereby adapting to the glue coating needs under different working conditions and ensuring uniform glue coating. When adding glue, the external glue pump pumps out the glue and sprays it between the glue coating auxiliary roller 7 and the glue coating main roller 6 through several glue spraying heads.

[0042] Two adjusting seats 1 and 9 are slidably disposed on the front side of the glue coating machine frame 4, two adjusting seats 2 and 3 are slidably disposed on the rear side of the glue coating machine frame 4, and the adjusting seats 3 are all located above the adjusting seats 2 and 12. The rotating shaft of the glue coating auxiliary roller 7 is rotatably disposed between the two adjusting seats 1 and 9, the glue coating main roller 6 is rotatably disposed on the inner side of the glue coating machine frame 4, the rotating shaft of the embossing roller 2 is rotatably disposed between the two adjusting seats 2 and 12, and the rotating shaft of the embossing roller 1 is rotatably disposed between the two adjusting seats 3.

[0043] In this embodiment, the glue-applying auxiliary roller 7 is installed through two adjusting seats 1 9, the embossing roller 1 is installed through two adjusting seats 3, and the embossing roller 2 is installed through two adjusting seats 2 12. All of them are slidably mounted on the glue-applying frame 4 for easy position adjustment.

[0044] The glue scraping mechanism 14 includes a fixed shaft 19, which is fixedly installed on the inner side of the glue applicator frame 4. Two hinge seats 20 are fixed on the fixed shaft 19, which are arranged symmetrically on the left and right. Each hinge seat 20 is hinged with an electric push rod 22. Two rotating slides 23 are rotatably arranged symmetrically on the left and right on the fixed shaft 19, and the rotating slides 23 are located inside the hinge seats 20 on the same side. The telescopic end of the electric push rod 22 is hinged to the rear end of the rotating slide 23. Each rotating slide 23 is provided with an electric push rod 21 on the upper rear side. The mounting plate 18 is slidably mounted on the two rotating slides 23. The mounting plate 18 is fixedly connected to the telescopic end of the two electric push rods 21. A glue scraper 17 is detachably mounted on the mounting plate 18. Several infrared thickness sensors are mounted on the mounting plate 18.

[0045] In this embodiment, during adjustment, the telescopic end of the electric push rod 22 drives the rotating slide 23 to rotate on the fixed shaft 19, adjusting the angle of the rotating slide 23. The rotating slide 23 drives the mounting plate 18 and the scraper blade 17 to adjust their angles. The telescopic ends of the two electric push rods 21 drive the mounting plate 18 to slide on the two rotating slides 23, thereby driving the scraper blade 17 to move, thus adjusting the angle of the scraper blade 17 and its distance from the main coating roller 6.

[0046] The glue-receiving mechanism 8 includes a drive shaft 24, which is rotatably mounted inside the glue-applying frame 4. The end of the drive shaft 24 passes through the glue-applying frame 4 and is connected to the output shaft of the drive motor 16. Two symmetrically arranged fixed seats 25 are rotatably mounted on the drive shaft 24. Two symmetrically arranged drive gears are fixed on the drive shaft 24. The drive gears are both located inside the fixed seats 25 on the same side. The two fixed seats 25 are respectively fixed on the left and right sides inside the glue-applying frame 4. Support racks 15 are slidably mounted inside the fixed seats 25. The support racks 15 mesh with the drive gears on the same side. A glue-receiving hopper 26 is fixed between the upper ends of the two support racks 15.

[0047] In this embodiment, the output shaft of the drive motor 16 drives the transmission shaft 24 to rotate, and the transmission shaft 24 drives two drive gears to drive the transmission. The drive gears mesh with the support racks 15 at the corresponding positions, thereby causing the two support racks 15 to slide inside the fixed seats 25 at the corresponding positions, thereby causing the glue collecting hopper 26 to move. The glue collecting hopper 26 collects the glue that leaks between the glue coating auxiliary roller 7 and the glue coating main roller 6, avoiding pollution of the working environment, reusing the glue, and reducing waste.

[0048] The working principle of this utility model is as follows: During the glue application process, an external glue pump pumps out the glue and sprays it between the glue application auxiliary roller 7 and the glue application main roller 6 through several glue spraying heads. Then, the output shaft of the drive motor 11 drives the glue application main roller 6 to rotate. When the glue application main roller 6 rotates, it cooperates with the glue application auxiliary roller 7 to evenly apply the glue between the glue application main roller 6 and the glue application auxiliary roller 7 onto the glue application main roller 6. The output shaft of the drive motor 16 drives the transmission shaft 24 to rotate. The transmission shaft 24 drives two drive gears to drive the transmission. The drive gears mesh with the support racks 15 at the corresponding positions, thereby driving the two support racks 15 to slide inside the fixed seats 25 at the corresponding positions, thereby driving the glue receiving hopper 26 to move. The glue receiving hopper 26 collects the glue that leaks between the glue application auxiliary roller 7 and the glue application main roller 6, avoiding pollution of the working environment, reusing the glue, and reducing waste.

[0049] During corrugated board production, the corrugated core paper is fed to embossing roller 1. The core paper is wound around the corrugating teeth of embossing roller 1 and passes through the meshing point of embossing roller 1 and embossing roller 2. After being rolled by the combined action of the corrugating teeth of embossing roller 1 and embossing roller 2, a corrugated board is formed and adhered to several corrugating teeth of embossing roller 2. Subsequently, driven by embossing roller 2, the corrugated board's crests approach the glue-applying main roller 6. As embossing roller 2 rotates, the glue on the outside of the glue-applying main roller 6 is applied to the crests of the corrugated board, completing the glue application. Several infrared thickness sensors on the glue-applying mechanism 14 detect the glue layer thickness on the crests of the corrugated board and compare it with the set glue layer thickness. Weight sensors on embossing roller 2 and embossing roller 1 detect the weight of the corrugated paper before and after glue application for comprehensive measurement of the glue layer thickness. If there is a deviation from the set thickness, the glue layer... When the adhesive layer is thin, the glue supply of the external glue pump is automatically adjusted, and the distance between the main glue-coating roller 6 and the auxiliary glue-coating roller 7 is adjusted, thereby controlling the thickness and uniformity of the glue on the outside of the main glue-coating roller 6. When the adhesive layer is thick, the angle of the scraping mechanism 14 and the distance between the scraping mechanism 14 and the outside of the main glue-coating roller 6 are controlled. That is, the telescopic end of the electric push rod 22 drives the rotating slide 23 to rotate on the fixed shaft 19, adjusting the angle of the rotating slide 23. The rotating slide 23 drives the mounting plate 18 and the scraper blade 17 to adjust the angle. The telescopic ends of the two electric push rods 21 drive the mounting plate 18 to slide on the two rotating slides 23, thereby driving the scraper blade 17 to move. The angle of the scraper blade 17 and the distance between it and the main glue-coating roller 6 are dynamically adjusted in real time. The scraper blade 17 scrapes away the excess glue on the outside of the main glue-coating roller 6, so that the thickness of the adhesive layer coated on the peaks of the corrugated board reaches the set thickness, realizing closed-loop feedback control.

[0050] When the speed, thickness, and weight of corrugated paper change, the glue coating thickness can be adjusted by using the glue scraping mechanism 14 and the glue coating frame mechanism to adjust the glue coating auxiliary roller 7, the embossing roller 2, and the embossing roller 1, thereby ensuring uniform, accurate, and stable glue application, effectively reducing defects such as glue spots and delamination, and optimizing glue costs.

[0051] In summary, the output shaft of the drive motor 11 drives the main coating roller 6 to rotate, and in conjunction with the auxiliary coating roller 7 and the external glue pump, the glue is evenly applied to the main coating roller 6 to ensure a uniform glue layer, which facilitates subsequent glue application.

[0052] By cooperating with embossing roller 1 and embossing roller 2, corrugated board is formed by roll pressing. Under the drive of embossing roller 2, the peaks of the corrugated board are brought close to the glue coating main roller 6. The glue on the outside of the glue coating main roller 6 is applied to the peaks of the corrugated board, thus completing the uniform and accurate glue coating.

[0053] The glue layer thickness on the corrugated board is detected by the glue scraping mechanism 14. When the glue layer thickness is too large, the glue scraping mechanism 14 is controlled to adjust the angle and scrape off the excess glue layer on the outside of the glue coating main roller 6. When the glue layer thickness is too small, the glue supply of the external glue pump is automatically adjusted to enhance the thickness and uniformity of the glue on the outside of the glue coating main roller 6, thereby performing adaptive adjustment.

[0054] By adjusting the glue scraping mechanism 14, the glue coating frame mechanism, the glue coating auxiliary roller 7, the embossing roller 2, and the embossing roller 1, the glue coating thickness can be adjusted when the speed, thickness, and weight of the corrugated paper change, ensuring that the glue amount is uniform, accurate, and stable, effectively reducing defects such as glue spots and glue delamination, and optimizing glue costs.

[0055] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A self-adaptive feedback glue application device for corrugated cardboard production lines, comprising a glue application frame mechanism, characterized in that, The inner side of the glue coating frame mechanism is provided with, from front to back, a glue coating auxiliary roller (7), a glue coating main roller (6), an embossing roller two (2), and an embossing roller one (1). Both the embossing roller two (2) and the embossing roller one (1) are provided with several circumferentially distributed corrugated teeth, and the corrugated teeth of the embossing roller two (2) mesh with the corrugated teeth of the embossing roller one (1). Both the embossing roller two (2) and the embossing roller one (1) are provided with several weight sensors. The left side of the glue coating frame mechanism is provided with a drive motor one (10) and a drive motor two (11). The rotating shaft of the embossing roller one (1) and the glue coating main roller (6) are connected. The rotating shaft of the first roller (2) and the output shaft of the second drive motor (11) are connected by a belt pulley pair. The rotating shaft of the second embossing roller (2) and the output shaft of the first drive motor (10) are connected by a belt pulley pair. The right side of the glue applicator mechanism is equipped with a fourth drive motor (16). The inner side of the glue applicator mechanism is equipped with a glue receiving mechanism (8) and a glue scraping mechanism (14). The glue scraping mechanism (14) is equipped with several infrared thickness sensors. The glue receiving mechanism (8) is connected to the output shaft of the fourth drive motor (16). The glue applicator mechanism is connected to the external glue pump through a pipe.

2. The adaptive feedback gluing device for corrugated cardboard production line according to claim 1, characterized in that, The glue receiving mechanism (8) is located below the glue coating auxiliary roller (7) and the glue coating main roller (6), and the glue scraping mechanism (14) is located below the embossing roller two (2) and the embossing roller one (1). The distance between the end of the glue scraping mechanism (14) and the outside of the glue coating main roller (6) is greater than the minimum distance between the corrugated tooth end of the embossing roller two (2) and the outside of the glue coating main roller (6). The distance between the corrugated tooth end of the embossing roller two (2) and the outside of the glue coating main roller (6) is less than the minimum distance between the outside of the glue coating main roller (6) and the outside of the glue coating auxiliary roller (7).

3. The adaptive feedback gluing device for corrugated cardboard production line according to claim 2, characterized in that, The glue coating frame mechanism includes a glue coating frame (4), two left-right symmetrically arranged adjustment seats one (9), two left-right symmetrically arranged adjustment seats two (12), and two left-right symmetrically arranged adjustment seats three. A fixing plate (3) is fixed to the upper inner side of the glue coating frame (4). Several glue spraying heads are evenly distributed on the fixing plate (3). Several glue spraying heads are located directly above the middle part of the glue coating main roller (6) and the glue coating auxiliary roller (7). Two left-right symmetrically arranged electric push rods one (5) are provided on the front side of the glue coating frame (4). The telescopic end of the glue applicator is fixedly connected to the adjustment seat 1 (9) on the same side. The rear side of the glue applicator frame (4) is provided with two electric push rods 2 (13) and two electric push rods 5 that are symmetrically arranged on the left and right sides. The telescopic end of the electric push rod 2 (13) is fixedly connected to the adjustment seat 2 (12) on the same side. The telescopic end of the electric push rod 5 is fixedly connected to the adjustment seat 3 on the same side. The drive motor 1 (10) and drive motor 2 (11) are both fixed on the left side of the glue applicator frame (4), and the drive motor 4 (16) is fixed on the right side of the glue applicator frame (4).

4. The adaptive feedback glue application device for corrugated cardboard production line according to claim 3, characterized in that, The two adjustment seats 1 (9) are slidably disposed on the front side of the glue coating machine frame (4), the two adjustment seats 2 (12) and the two adjustment seats 3 are slidably disposed on the rear side of the glue coating machine frame (4), and the adjustment seats 3 are all located above the adjustment seats 2 (12). The rotating shaft of the glue coating auxiliary roller (7) is rotatably disposed between the two adjustment seats 1 (9), the glue coating main roller (6) is rotatably disposed on the inner side of the glue coating machine frame (4), the rotating shaft of the embossing roller 2 (2) is rotatably disposed between the two adjustment seats 2 (12), and the rotating shaft of the embossing roller 1 (1) is rotatably disposed between the two adjustment seats 3.

5. The adaptive feedback glue application device for corrugated cardboard production line according to claim 4, characterized in that, The glue scraping mechanism (14) includes a fixed shaft (19), which is fixedly installed on the inner side of the glue applicator frame (4). Two hinge seats (20) are fixed on the fixed shaft (19) and are arranged symmetrically on the left and right. Each hinge seat (20) is hinged with an electric push rod four (22). Two rotating slides (23) are rotatably arranged symmetrically on the left and right on the fixed shaft (19), and the rotating slides (23) are located inside the hinge seats (20) on the same side. The telescopic end of the electric push rod four (22) is hinged to the rear end of the rotating slide (23). Electric push rod three (21) is provided on the upper rear side of the rotating slide (23). Mounting plate (18) is slidably provided on the two rotating slides (23). Mounting plate (18) is fixedly connected to the telescopic end of the two electric push rod three (21). Glue scraper (17) is detachably provided on the mounting plate (18). Several infrared thickness sensors are set on the mounting plate (18).

6. The adaptive feedback glue application device for corrugated cardboard production line according to claim 5, characterized in that, The glue receiving mechanism (8) includes a drive shaft (24), which is rotatably disposed inside the glue coating frame (4). The end of the drive shaft (24) passes through the glue coating frame (4) and is connected to the output shaft of the drive motor (16). Two fixed seats (25) are rotatably disposed on the drive shaft (24). Two drive gears are fixed on the drive shaft (24). The drive gears are located inside the fixed seats (25) on the same side. The two fixed seats (25) are fixed on the left and right sides inside the glue coating frame (4). Support racks (15) are slidably disposed inside the fixed seats (25). The support racks (15) mesh with the drive gears on the same side. A glue receiving hopper (26) is fixed between the upper ends of the two support racks (15).

Images