Adjustable glue scraping device based on seaweed film packaging bag

Abstract

The application belongs to the technical field of packaging bag glue scraping, and discloses an adjustable glue scraping device based on a seaweed film packaging bag, which comprises a guide plate, the inner cavity of the guide plate is fixedly connected with a conveying belt through a pair of connecting strips, the connecting strips are connected with driving equipment, the top of the guide plate is fixedly connected with a mounting frame, and the device further comprises a leakage-proof glue scraping mechanism which is arranged on the mounting frame and is convenient for quickly adjusting the angle of the scraping plate according to the thickness of the required packaging bag through the cooperation of a horizontal plate, a scraping plate, an arc groove and a supporting block and the like structure, and the scraping plate bottom end is driven to move away from or close to the surface of the conveying belt through the lever principle and the lifting of the horizontal plate driven by a cylinder, so that the thickness can be adjusted at will; meanwhile, the fan-shaped baffle fixedly connected with the end of the scraping plate is always tightly abutted against the edge of the conveying belt, a scraping glue area is formed on both sides, the overflow of glue from both sides of the conveying belt is effectively prevented, waste is avoided, the scraping glue precision is ensured, and the material utilization rate is improved.

Description

Technical Field

[0001] This invention belongs to the field of adhesive scraping technology for packaging bags, specifically an adjustable adhesive scraping device based on seaweed film packaging bags. Background Technology

[0002] Seaweed film packaging bags are a new type of environmentally friendly packaging material. They are not made of traditional plastics (such as PE and PP), but are made primarily from natural polysaccharides extracted from seaweed such as kelp and brown algae (such as alginate and sodium alginate). The core advantage of these film-forming packaging bags is their environmental friendliness and biodegradability. The coating scraping device on the production line is mainly used to precisely control the thickness and flatness of the coating. In the production of seaweed film, the coating scraping device evenly coats the prepared seaweed glue solution onto the conveyor belt or support roller to ensure that the final film has a uniform thickness and a smooth surface. This is a key step in ensuring the quality of the film (such as strength and transparency).

[0003] A scraping device, disclosed in prior art document CN113279548A, includes a base, a suspension part, a scraping component, and a top pressing part. The suspension part is disposed on the base, and the scraping component is inclined relative to the mounting surface, forming an inclination angle between the scraping component and the mounting surface. The connecting end of the scraping component is rotatably connected to the suspension part. The top pressing part is disposed on the base and is used to provide pressing pressure to the scraping end. The scraping component of the scraping device provided in this application is rotatably connected to the suspension part, and the top pressing part provides pressing pressure to the scraping end. Under the action of the pressing pressure, the scraping end of the scraping component rotates toward the mounting surface, thereby adjusting the inclination angle to change the thickness of the adhesive. Under the action of the pressing pressure, the scraping end can rotate to a position that presses against the mounting surface. Under the force of the top pressing part, the scraping component can press the adhesive onto the surface of the object to be scraped, so that the adhesive layer can firmly adhere to the surface of the object to be scraped and maintain the consistency of the scraping. While the aforementioned patents achieve the goal of adjusting the tilt angle to change the thickness of the adhesive, they cannot effectively solve the problems of adhesive leakage and adaptive adjustment of adhesive output. In existing technologies, adhesive easily overflows from both sides of the conveyor belt during the coating process, which not only wastes materials but also contaminates the equipment and increases cleaning difficulty. At the same time, when adjusting the coating thickness, the opening of the adhesive outlet cannot be adjusted synchronously, resulting in a mismatch between the adhesive supply and the coating thickness. This leads to insufficient adhesive supply during thick coating, which easily causes adhesive gaps and voids, while excessive adhesive supply during thin coating causes adhesive accumulation and overflow, affecting coating uniformity and film forming quality. In addition, traditional coating devices lack adhesive preheating functions. High-viscosity seaweed adhesives have poor fluidity and are difficult to spread evenly, further exacerbating the problem of uneven coating. They often require repeated adjustments based on manual experience, resulting in low production efficiency and making it difficult to meet the continuous production needs of high-quality seaweed film packaging bags. Summary of the Invention

[0004] To address the issues of adhesive leakage and the inability to adaptively adjust the adhesive output mentioned in the background art, this invention provides an adjustable adhesive scraping device based on seaweed film packaging bags.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable adhesive scraping device based on seaweed film packaging bags, comprising a guide plate, wherein a conveyor belt is fixedly connected to the inner cavity of the guide plate via a pair of connecting strips, a driving device is externally connected to the connecting strips, and a mounting frame is fixedly connected to the top of the guide plate, and further comprising: A leak-proof adhesive scraping mechanism, which is located on a mounting frame; A self-adjusting mechanism, which is connected to an anti-leakage adhesive scraping mechanism; The anti-leakage adhesive scraping mechanism includes a scraper that movably abuts against the inner cavity of the mounting frame. A pair of fan-shaped baffles are fixed to the end of the scraper. The inner sides of the fan-shaped baffles slide against the edge of the conveyor belt. The scraper has symmetrical arc grooves on the side near the fan-shaped baffles, and the scraper is rotatably connected to a support block through the arc groove. The outer sides of the support blocks are fixed to the mounting frame. The pair of fan-shaped baffles fixed to the end of the scraper slide against the edge of the conveyor belt, forming a closed limit on both sides during the adhesive scraping process, effectively preventing the adhesive from overflowing to both sides. At the same time, the self-adjusting mechanism is connected to the anti-leakage adhesive scraping mechanism. Through the linkage adjustment of the scraper's position or posture, the adhesive thickness can be adaptively changed, so that when the scraper scrapes the seaweed film surface moving with the conveyor belt, it can ensure that the adhesive layer is uniform and avoid adhesive leakage, thereby achieving coordinated cooperation and stable operation between the various structures.

[0006] Preferably, the anti-leakage adhesive scraping mechanism further includes two cylinders fixed to the top of the mounting frame, the output ends of the cylinders sliding through the top of the mounting frame, and the ends of the cylinders are fixed with horizontal plates.

[0007] Preferably, both sides of the horizontal plate are provided with horizontal grooves, and both sides of the scraper are slidably connected to the inner wall of the horizontal grooves through first sliding columns. When the cylinder drives the horizontal plate to move downward in the vertical direction, the horizontal plate cooperates with the first sliding column through the horizontal groove, causing the top of the scraper to move downward synchronously. The scraper and the support block are rotatably connected through the arc groove, and the dynamic change of the bottom position of the scraper is realized by using the lever principle: as the top descends, the bottom of the scraper gradually moves away from the surface of the conveyor belt, thereby increasing the thickness of the adhesive layer of the packaging bag. When the cylinder drives the horizontal plate to move upward, the top of the scraper rises accordingly, and the bottom gradually approaches the surface of the conveyor belt, thereby reducing the thickness of the packaging bag. This allows for arbitrary adjustment of the adhesive layer thickness. In this way, the production line can flexibly adjust the thickness of the packaging bag according to different specifications or customer requirements without replacing the scraper or making complex mechanical modifications, thereby improving production efficiency and operational convenience.

[0008] Preferably, the self-adjusting mechanism includes an extension plate fixed to the corner of the scraper, the side wall of the extension plate has a groove, and the inner side wall of the mounting bracket has a vertical sliding groove.

[0009] Preferably, the extension plate is slidably connected to a second sliding post via a groove, and a rack is fixedly connected to the end of the second sliding post, the rack being slidably connected within a vertical sliding groove.

[0010] Preferably, the outer wall of the rack is engaged with a gear, and the center of the gear is rotatably connected to the mounting bracket.

[0011] Preferably, a rotating tube is fixedly connected to the side wall of the gear, and a heating tube is rotatably sleeved on the outer wall of the rotating tube. A heating wire is provided in the inner cavity of the heating tube. When the scraper moves downward to increase the thickness of the adhesive layer, the extension plate is slidably connected to the second sliding column through the groove, which drives the rack to slide downward along the vertical sliding groove on the inner side of the mounting frame. During the vertical movement of the rack, the gear is driven to rotate in the forward direction. At the same time, the gear drives the rotating tube fixed to the side wall to rotate synchronously. The rotating tube is rotatably sleeved inside the heating tube fixed to the mounting frame, thereby realizing the smooth rotation of the rotating tube inside the heating tube.

[0012] Preferably, the heating tube has a first groove at its bottom, and the rotating tube has a second groove at its bottom.

[0013] Preferably, the first slot and the second slot are interconnected, and their lengths are both slightly shorter than the width of the conveyor belt.

[0014] Preferably, the end of the heating tube is fixedly inserted through the side wall of the mounting frame, and a heater is also fixedly connected to the end of the heating tube. The heater is electrically connected to the heating wire in the inner cavity. During the coating process, the heater is energized, which causes the heating wire in the inner cavity of the heating tube to heat up rapidly. The heat generated is transferred to the vicinity of the glue outlet through the rotating tube, preheating the glue to be coated. Preheating can significantly reduce the viscosity of the glue and improve its fluidity, so that the glue can be spread more evenly on the surface of the seaweed film substrate on the conveyor belt during coating. At the same time, during the coating process, excess glue is blocked by the fan-shaped baffle and guided back to the central concentration area of ​​the conveyor belt, which facilitates subsequent cleaning and reuse and reduces glue waste.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting up a combination of structures such as a horizontal plate, scraper, arc groove and support block, the present invention facilitates the quick adjustment of the scraper angle according to the required packaging bag thickness. Using the lever principle, the horizontal plate is driven to rise and fall by a cylinder, so that the bottom end of the scraper is away from or close to the surface of the conveyor belt, thereby achieving arbitrary thickness adjustment. At the same time, the fan-shaped baffle fixed to the end of the scraper is always in close contact with the edge of the conveyor belt, forming a closed scraping area on both sides, which effectively prevents the glue from overflowing from both sides of the conveyor belt and causing waste, thus ensuring the scraping accuracy and improving the material utilization rate.

[0016] (2) By setting up an extension plate, a rotating tube and a heating tube, the present invention achieves synchronous adaptive adjustment of the coating thickness and the amount of adhesive dispensed. When the scraper is raised and lowered to adjust the thickness, the extension plate drives the rack to slide, which in turn drives the gear and the rotating tube to rotate. This causes the overlapping area of ​​the second groove at the bottom of the rotating tube and the first groove at the bottom of the heating tube to change accordingly. This achieves the effect of automatically expanding the adhesive outlet when the thickness increases and automatically narrowing the adhesive outlet when the thickness decreases, ensuring that the amount of adhesive supplied is precisely matched with the coating thickness, avoiding excessive accumulation or insufficient adhesive leading to uneven coating, and significantly improving the coating quality.

[0017] (3) By setting up a heating tube, a heater, a rotating tube, and the cooperation of the first slot and the second slot, the present invention facilitates the preheating of the adhesive and uniform dispensing. When the heater is powered on, the heating wire in the inner cavity of the heating tube is heated. The heat is transferred to the vicinity of the dispensing port through the rotating tube to preheat the adhesive to be coated, reduce the viscosity of the adhesive, improve the fluidity, and make the adhesive more uniformly coated on the surface of the seaweed film substrate on the conveyor belt. At the same time, the excess adhesive after scraping is blocked by the fan-shaped baffle and flows back to the middle of the conveyor belt for concentration, which is convenient for later cleaning and reuse, further reducing adhesive waste and improving production economy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the structural fit between the horizontal blade and the scraper of the present invention; Figure 3 This is a schematic diagram showing the structural fit between the rack and the mounting bracket of the present invention; Figure 4 This is a schematic diagram showing the structural fit between the rack and scraper of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at point A in the middle; Figure 6 This is a schematic diagram showing the structural fit between the rotating tube and the gear in this invention; Figure 7 This is a schematic diagram showing the structural fit between the heating tube and the guide plate of the present invention; Figure 8This is a schematic diagram showing the structural fit between the arc groove and the sector-shaped baffle of the present invention; Figure 9 This is a schematic diagram showing the structural fit between the arc groove and the support block of the present invention; Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the picture: 100. Guide plate; 200. Conveyor belt; 300. Connecting strip; 400. Mounting frame; 500. Anti-leakage adhesive scraping mechanism; 510. Cylinder; 520. Horizontal plate; 530. Scraper; 540. Arc groove; 550. Support block; 560. Fan-shaped baffle; 570. Horizontal groove; 580. First sliding column; 600. Self-adjusting mechanism; 610. Rack; 620. Gear; 630. Extension plate; 640. Groove; 650. Heating tube; 660. Rotating tube; 670. First slot; 680. Second slot; 690. Heater; 6100. Second sliding column. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, the present invention provides an adjustable adhesive scraping device for seaweed film packaging bags, including a guide plate 100, a conveyor belt 200 fixedly connected to the inner cavity of the guide plate 100 by a pair of connecting strips 300, a driving device externally connected to the connecting strips 300, and a mounting bracket 400 fixedly connected to the top of the guide plate 100, and further including: The anti-leakage adhesive scraping mechanism 500 is located on the mounting bracket 400; The self-adjusting mechanism 600 is connected to the anti-leakage adhesive scraping mechanism 500; The anti-leakage adhesive scraping mechanism 500 includes a scraper 530 that movably abuts against the inner cavity of the mounting frame 400. A pair of fan-shaped baffles 560 are fixedly connected to the end of the scraper 530. The inner sides of the fan-shaped baffles 560 slide against the edge of the conveyor belt 200. The scraper 530 is symmetrically provided with arc grooves 540 on the side near the fan-shaped baffles 560. The scraper 530 is rotatably connected to a support block 550 through the arc grooves 540. The outer sides of the support blocks 550 are fixedly connected to the mounting frame 400.

[0022] The above scheme is adopted: In this device, the guide plate 100 serves as the overall support base, and the conveyor belt 200 is fixedly installed in its inner cavity through a pair of connecting strips 300. The drive device connected to the connecting strips 300 drives the conveyor belt 200 to run continuously, thereby realizing the stable conveying of seaweed film packaging bags; the mounting frame 400 is fixed to the top of the guide plate 100 and is used to support the anti-leakage adhesive scraping mechanism 500 and the self-adjusting mechanism 600. In the anti-leakage adhesive scraping mechanism 500, the scraper 530 is movably mounted inside the mounting frame 400 and is rotatably connected to the support block 550 through symmetrically arranged arc grooves 540 on both sides, allowing the scraper 530 to adjust its angle with the support block 550 as the fulcrum, thereby changing the distance between it and the conveyor belt 200. A pair of fan-shaped baffles 560 fixed to the end of the scraper 530 slide against the edge of the conveyor belt 200, forming a closed limit on both sides during the adhesive scraping process, effectively preventing the adhesive from overflowing to both sides. At the same time, the self-adjusting mechanism 600 is connected to the anti-leakage adhesive scraping mechanism 500. Through the linkage adjustment of the position or posture of the scraper 530, the adhesive thickness can be adaptively changed, so that when the scraper 530 scrapes the seaweed film surface running with the conveyor belt 200, it can ensure that the adhesive layer is uniform and avoid adhesive leakage, thereby achieving coordinated cooperation and stable operation between the various structures.

[0023] like Figures 2 to 5 , Figures 7 to 9 As shown, the anti-leakage adhesive scraping mechanism 500 also includes two cylinders 510 fixed to the top of the mounting bracket 400. The output ends of the cylinders 510 slide through the top of the mounting bracket 400, and the ends of the cylinders 510 are fixed to a horizontal plate 520. Horizontal grooves 570 are provided on both sides of the horizontal plate 520, and both sides of the scraper 530 are slidably connected to the inner wall of the horizontal groove 570 through a first sliding column 580.

[0024] The above scheme employs the following method: Based on the required adhesive thickness for the seaweed film packaging bag, cylinder 510 drives horizontal plate 520 to move vertically downwards. Horizontal plate 520 engages with first sliding column 580 via horizontal groove 570, causing the top of scraper 530 to move downwards synchronously. Scraper 530 and support block 550 are rotatably connected via arc groove 540, utilizing lever principle to dynamically change the position of the bottom of scraper 530: as the top descends, the bottom of scraper 530 gradually moves away from the surface of conveyor belt 200, thereby increasing the adhesive layer thickness of the packaging bag. During this process, the fan-shaped baffle 560 fixed to the end of scraper 530 always slides tightly against both sides of the conveyor belt 200, forming a closed scraping area. This design effectively prevents adhesive from overflowing from both sides of conveyor belt 200, reducing adhesive waste and ensuring the cleanliness of the coating area and stable product quality. Conversely, when cylinder 510 drives the horizontal plate 520 to move upward, the top of scraper 530 rises accordingly, and the bottom gradually approaches the surface of conveyor belt 200, thereby reducing the thickness of the packaging bag and achieving arbitrary adjustment of the adhesive layer thickness. In this way, the production line can flexibly adjust the thickness of the packaging bag according to different specifications or customer requirements without replacing scraper 530 or making complex mechanical modifications, improving production efficiency and ease of operation.

[0025] like Figures 3 to 6 , Figure 9 and Figure 10 As shown, the self-adjusting mechanism 600 includes an extension plate 630 fixedly attached to the corner of the scraper 530. A groove 640 is formed on the side wall of the extension plate 630, and a vertical sliding groove is formed on the inner side wall of the mounting bracket 400. A second sliding post 6100 is slidably connected to the extension plate 630 via the groove 640. A rack 610 is fixedly connected to the end of the second sliding post 6100, and the rack 610 is slidably connected within the vertical sliding groove. A gear 620 meshes with the outer wall of the rack 610, and the center of the gear 620 is rotatably connected to the mounting bracket 400. A rotating gear is fixedly connected to the side wall of the gear 620. The rotating tube 660 has a heating tube 650 rotatably sleeved on its outer wall. The heating tube 650 has a heating wire inside its cavity. The bottom of the heating tube 650 has a first slot 670, and the bottom of the rotating tube 660 has a second slot 680. The first slot 670 and the second slot 680 are interconnected and their lengths are both slightly shorter than the width of the conveyor belt 200. The end of the heating tube 650 is fixedly inserted through the side wall of the mounting frame 400. The end of the heating tube 650 is also fixedly connected to a heater 690, which is electrically connected to the heating wire inside the cavity.

[0026] The above scheme is adopted as follows: when the scraper 530 moves downward to increase the thickness of the adhesive layer, the extension plate 630 at the corner of the scraper 530 also moves downward simultaneously. The extension plate 630 is slidably connected to the second sliding column 6100 through the groove 640, driving the rack 610 to slide downward along the vertical sliding groove on the inner side of the mounting bracket 400. During the vertical movement, the rack 610 drives the gear 620 to rotate forward, and at the same time, the gear 620 drives the rotating tube 660 fixed to the side wall to rotate synchronously. The rotating tube 660 is rotatably sleeved inside the heating tube 650 fixed to the mounting bracket 400, thereby realizing the smooth rotation of the rotating tube 660 inside the heating tube 650. The bottom of the rotating tube 660 is provided with a second groove 680, and the bottom of the heating tube 650 is provided with a first groove 670. When the rotating tube 660 rotates, the overlapping area between the two grooves changes dynamically. This structure allows the opening of the glue outlet to automatically adjust with the position of the scraper 530, achieving synchronous linkage between the glue dispensing volume and the glue thickness, ensuring the accuracy of the glue supply. As the top of the scraper 530 descends, the required glue layer gradually thickens, the downward stroke of the rack 610 increases, and the rotation angle of the gear 620 increases, gradually expanding the overlap area between the second groove 680 and the first groove 670, thereby automatically increasing the width of the glue outlet to match the increased glue layer thickness. Conversely, when the top of the scraper 530 rises, the glue layer thickness decreases, the rack 610 moves upward, the rotation angle of the gear 620 decreases, and the width of the glue outlet automatically shrinks. This adaptive adjustment function ensures that the glue supply volume is precisely matched with the actual coating thickness, avoiding glue accumulation due to excessive glue supply or uneven coating due to insufficient supply. It achieves intelligent matching between coating thickness and glue flow rate, further improving the stability of the production process and the consistency of the finished product. In summary, this system achieves comprehensive intelligent control of coating thickness, adhesive output, and adhesive temperature through the coordinated operation of multiple components, including cylinder 510, horizontal plate 520, scraper 530, extension plate 630, rack 610, gear 620, rotating tube 660, and heating tube 650. By synchronously and adaptively adjusting the height of the scraper 530 and the opening of the adhesive outlet, operators can ensure the uniformity and stability of adhesive coating without frequent manual intervention, while avoiding adhesive overflow and waste. This improves the production efficiency, material utilization, and product quality of seaweed film packaging bags.

[0027] Working principle and usage process of this invention: First, based on the required adhesive thickness for the seaweed film packaging bag, cylinder 510 is activated to drive the horizontal plate 520 downwards. The horizontal plate 520, through the engagement of the horizontal groove 570 and the first sliding column 580, drives the top of the scraper 530 downwards. The scraper 530 is rotatably connected to the support block 550 via the arc groove 540. Based on the lever principle, the bottom of the scraper 530 gradually moves away from the surface of the conveyor belt 200, increasing the thickness of the packaging bag. At this time, the fan-shaped baffle 560 fixed to the end of the scraper 530 always slides tightly against the edge of the conveyor belt 200, forming a closed scraping area on both sides, effectively preventing adhesive from overflowing from both sides of the conveyor belt 200 and causing waste. Conversely, when cylinder 510 drives the horizontal plate 520 upwards, the bottom of the scraper 530 gradually approaches the surface of the conveyor belt 200, reducing the thickness of the packaging bag, thus achieving the purpose of arbitrarily adjusting the thickness of the manufactured packaging bag. Secondly, as the scraper 530 moves downward to adjust the thickness, the extension plate 630 at the corner of the scraper 530 moves downward simultaneously. The extension plate 630 is slidably connected to the second sliding column 6100 through the groove 640, driving the rack 610 to slide downward along the vertical sliding groove inside the mounting bracket 400. When the rack 610 moves downward, it drives the gear 620 to rotate in the forward direction, and the gear 620 drives the rotating tube 660 fixed to the side wall to rotate synchronously. Since the rotating tube 660 is rotatably sleeved inside the heating tube 650, and the heating tube 650 is fixed on the mounting bracket 400, the rotating tube 660 rotates inside the heating tube 650, causing the overlap area between the second groove 680 at the bottom of the rotating tube 660 and the first groove 670 at the bottom of the heating tube 650 to change. Furthermore, as the top of the scraper 530 descends, meaning the required adhesive layer thickens, the downward stroke of the rack 610 increases, and the rotation angle of the gear 620 increases. This gradually increases the overlap area between the second groove 680 and the first groove 670, automatically widening the adhesive outlet width. Conversely, when the top of the scraper 530 rises, meaning the required adhesive layer thins, the adhesive outlet width automatically narrows. This achieves synchronous adaptive adjustment of the scraper 530 height (i.e., adhesive layer thickness) and the adhesive outlet opening, ensuring that the adhesive supply matches the coating thickness and preventing excessive adhesive accumulation or insufficient adhesive leading to uneven coating. Finally, during the coating process, the heater 690 is energized, raising the temperature of the heating wire inside the heating tube 650. The heat is transferred through the rotating tube 660 to the vicinity of the glue outlet, preheating the glue to be coated, reducing its viscosity, and improving its fluidity, allowing for a more uniform coating of the seaweed film substrate on the conveyor belt 200. After coating by the scraper 530, excess glue is blocked by the fan-shaped baffle 560 and flows back to the center of the conveyor belt 200 for easy cleaning and reuse, reducing glue waste. The overall structure automatically matches the coating thickness and glue output through mechanical linkage, ensuring coating uniformity while preventing glue leakage and waste, significantly improving the production quality and material utilization rate of seaweed film packaging bags.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A adjustable glue scraping device based on seaweed film packaging bag, comprising a guide plate (100), the inner cavity of the guide plate (100) is fixed with a conveying belt (200) through a pair of connecting strips (300), the connecting strips (300) are connected with driving equipment, and the top of the guide plate (100) is fixedly connected with a mounting rack (400), characterized in that: Also includes: ​ A leak-proof adhesive scraping mechanism (500) is located on a mounting bracket (400); A self-adjusting mechanism (600) is connected to an anti-leakage adhesive scraping mechanism (500); The anti-leakage adhesive scraping mechanism (500) includes a scraper (530) that movably abuts against the inner cavity of the mounting frame (400). A pair of fan-shaped baffles (560) are fixedly connected to the end of the scraper (530). The inner sides of the fan-shaped baffles (560) slide against the edge of the conveyor belt (200). The scraper (530) has symmetrical arc grooves (540) on the side near the fan-shaped baffles (560). The scraper (530) is rotatably connected to a support block (550) through the arc grooves (540). The outer sides of the support blocks (550) are fixedly connected to the mounting frame (400).

2. The adjustable adhesive scraping device based on seaweed film packaging bags according to claim 1, characterized in that: The anti-leakage adhesive scraping mechanism (500) also includes two cylinders (510) fixed to the top of the mounting frame (400). The output ends of the cylinders (510) slide through the top of the mounting frame (400), and the ends of the cylinders (510) are fixed with a horizontal plate (520).

3. The adjustable adhesive scraping device based on seaweed film packaging bags according to claim 2, characterized in that: The horizontal plate (520) has horizontal grooves (570) on both sides, and the scraper (530) is slidably connected to the inner wall of the horizontal groove (570) on both sides through the first sliding column (580).

4. The adjustable adhesive scraping device based on seaweed film packaging bags according to claim 1, characterized in that: The self-adjusting mechanism (600) includes an extension plate (630) fixed to the corner of the scraper (530), the side wall of the extension plate (630) is provided with a groove (640), and the inner side wall of the mounting bracket (400) is provided with a vertical sliding groove.

5. The adjustable adhesive scraping device based on seaweed film packaging bags according to claim 4, characterized in that: The extension plate (630) is slidably connected to a second sliding post (6100) via a groove (640). A rack (610) is fixed to the end of the second sliding post (6100), and the rack (610) is slidably connected in a vertical groove.

6. The adjustable adhesive scraping device for seaweed film packaging bags according to claim 5, characterized in that: The outer wall of the rack (610) is engaged with a gear (620), and the center of the gear (620) is rotatably connected to the mounting bracket (400).

7. The adjustable adhesive scraping device for seaweed film packaging bags according to claim 6, characterized in that: A rotating tube (660) is fixedly connected to the side wall of the gear (620), and a heating tube (650) is rotatably sleeved on the outer wall of the rotating tube (660). A heating wire is provided in the inner cavity of the heating tube (650).

8. The adjustable adhesive scraping device for seaweed film packaging bags according to claim 7, characterized in that: The heating tube (650) has a first slot (670) at its bottom, and the rotating tube (660) has a second slot (680) at its bottom.

9. The adjustable adhesive scraping device for seaweed film packaging bags according to claim 8, characterized in that: The first slot (670) and the second slot (680) are connected to each other, and their lengths are both shorter than the width of the conveyor belt (200).

10. The adjustable adhesive scraping device for seaweed film packaging bags according to claim 9, characterized in that: The end of the heating tube (650) is fixedly inserted through the side wall of the mounting bracket (400), and the end of the heating tube (650) is also fixedly connected to a heater (690), which is electrically connected to the heating wire in the inner cavity.

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