Hot melting combined type sealing device of full-automatic bag making machine

Abstract

The utility model discloses a hot melting composite type sealing device of a full-automatic bag making machine, which comprises an L-shaped connecting plate, the left side of the top of the L-shaped connecting plate is fixedly connected with a hot pressing sealing frame, the right side of the top of the L-shaped connecting plate is fixedly connected with a folding guide plate, and the right side of the rear part of the folding guide plate is fixedly connected with an adhesive tape box. Threaded holes are formed in the rear side of the inner wall of the L-shaped connecting plate at equal intervals in a penetrating mode, hot-melt kraft paper adhesive tape which is vertically conveyed can be folded on the outer side of the sealing position of a paper bag, the sealing position of the paper bag can be automatically folded and covered with the hot-melt kraft paper adhesive tape in the paper bag conveying process, manual attaching operation of workers is not needed, and the labor intensity of workers is relieved. The processing efficiency and the practicability are greatly improved, after the hot-melt kraft paper adhesive tape at the sealing position of the paper bag is heated, an adhesive layer is molten, an adhesive solution permeates the surface of a material through pressure, physical bonding is formed after cooling, the paper bag can be automatically sealed, and the processing efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine sealing technology, specifically to a hot melt composite sealing device for a fully automatic bag making machine. Background Technology

[0002] Paper bags are a common container used for packaging goods. They are usually made of paper or similar materials and form a bag-like structure. They are lightweight, environmentally friendly, and easily biodegradable. With the growing awareness of environmental protection, many cities have started to ban plastic bags and encourage people to bring their own reusable bags when shopping. Some merchants, such as dessert and bread, express food, beverages, and clothing, provide paper bags instead of plastic bags, making paper bags widely used in many industries and applications. In order to prevent external factors such as air, moisture, and dust from entering the bag and to ensure that the products inside the bag will not be accidentally leaked or damaged during transportation or storage, and to ensure the integrity and safety of the products, paper bags generally need to be sealed.

[0003] In existing technologies, traditional sealing methods mostly involve manual sealing or the use of automatic sealing machines. Manual sealing is labor-intensive and has low production efficiency. When workers work for long periods of time, there may be problems such as some paper bags not being sealed properly or not being sealed tightly, which reduces the sealing quality of the paper bags. Although sealing machines improve efficiency, they mostly use heat sealing technology, which requires manual application of glue to the sealing area of ​​the paper bags beforehand, greatly reducing processing efficiency.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In response to the problems in related technologies, this utility model proposes a hot melt composite sealing device for a fully automatic bag making machine to overcome the aforementioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] The hot melt composite sealing device of the fully automatic bag making machine includes an L-shaped connecting plate. A hot press sealing frame is fixedly connected to the top left side of the L-shaped connecting plate. A folding guide plate is fixedly connected to the top right side of the L-shaped connecting plate. A tape box is fixedly connected to the rear right side of the folding guide plate. Threaded holes are provided at equal intervals on the rear side of the inner wall of the L-shaped connecting plate. A V-shaped folding groove is carved on the left side of the inner wall of the folding guide plate.

[0008] Preferably, the tape box has a tape outlet on the right side, the folding guide plate is a trapezoidal groove plate structure, and a connecting shaft is provided between the inner walls of the tape box through a bearing.

[0009] Preferably, a rotating disk is fitted and fixed on the outer wall of the connecting shaft, and hot melt kraft paper tape is wound on the outer wall of the rotating disk. A guide roller is connected to the corner of the inner wall of the tape box through a bearing.

[0010] Preferably, the hot-press sealing frame includes a grooved plate and a telescopic cylinder. The top center of the grooved plate is fixedly connected to the telescopic cylinder. The fixed end of the telescopic cylinder extends into the grooved plate, and the movable end is connected to an L-shaped lifting plate.

[0011] Preferably, the inner wall of the L-shaped lifting plate is connected to a rotating shaft at equal intervals via bearings, a rubber sleeve is fixedly fitted on the outer wall of the rotating shaft, and a hot melt pipe is connected at equal intervals to the left side of the rotating shaft.

[0012] Preferably, the hot melt tube includes a fixed shaft and a limiting ring. The limiting ring is respectively sleeved and fixed to the outer walls of both ends of the fixed shaft, and the rear end of the fixed shaft is fixedly connected to the rear side of the inner wall of the L-shaped lifting plate.

[0013] Preferably, an electric heating tube is equidistantly connected to the front side of the rear limiting ring, the front end of the electric heating tube is fixedly connected to the rear side of the front limiting ring, and a high-temperature cloth is fixedly wrapped around the outside of the limiting ring, with the inner side of the high-temperature cloth being attached and fixed to the outer side of the electric heating tube.

[0014] The beneficial effects of this utility model are as follows: it allows the vertically conveyed hot-melt kraft paper tape to be folded on the outside of the paper bag seal, automatically covering the paper bag seal during the paper bag conveying process, eliminating the need for manual application by workers, thus greatly improving processing efficiency and practicality. By controlling the downward pressure of the rubber sleeve through a telescopic cylinder, the folded hot-melt kraft paper tape at the paper bag seal can be pressed firmly. After heating, the adhesive layer of the hot-melt kraft paper tape at the paper bag seal melts, and the pressure allows the adhesive to penetrate the material surface, forming a physical bond after cooling. This enables automated sealing of the paper bag, further improving processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the hot melt composite sealing device of the fully automatic bag making machine according to an embodiment of the present utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the feeding hopper and crushing box of the hot melt composite sealing device of the fully automatic bag making machine according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the screening mesh tube of the hot melt composite sealing device of the fully automatic bag making machine according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the feeding cylinder of the hot melt composite sealing device of the fully automatic bag making machine according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. L-shaped connecting plate; 2. Hot-press sealing frame; 3. Folding guide plate; 4. Tape box; 5. Threaded hole; 6. V-shaped folding groove; 7. Tape outlet; 8. Connecting shaft; 9. Rotating disc; 10. Hot melt kraft paper tape; 11. Guide roller; 12. Groove plate; 13. Telescopic cylinder; 14. L-shaped lifting plate; 15. Rotating shaft; 16. Rubber sleeve; 17. Hot melt tube; 18. Fixed shaft; 19. Limiting ring; 20. Electric heating tube; 21. High-temperature cloth. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a hot melt composite sealing device for a fully automatic bag making machine is provided.

[0024] Example 1

[0025] like Figure 1-4As shown, the hot-melt composite sealing device of the fully automatic bag making machine according to an embodiment of this utility model includes an L-shaped connecting plate 1. A hot-press sealing frame 2 is fixedly connected to the top left side of the L-shaped connecting plate 1. A folding guide plate 3 is fixedly connected to the top right side of the L-shaped connecting plate 1. A tape box 4 is fixedly connected to the rear right side of the folding guide plate 3. Threaded holes 5 are provided at equal intervals through the rear side of the inner wall of the L-shaped connecting plate 1. A V-shaped folding groove 6 is carved into the left side of the inner wall of the folding guide plate 3. A tape outlet 7 is opened on the right side of the tape box 4. The folding guide plate 3 is specifically a trapezoidal groove plate structure. A connecting shaft 8 is provided through the inner walls of the tape box 4 via bearings. A rotating disk 9 is sleeved and fixed on the outer wall of the connecting shaft 8. Hot-melt kraft paper tape 10 is wound on the outer wall of the rotating disk 9. A bearing connects the corner of the inner wall of the tape box 4 to... The guide roller 11 and L-shaped connecting plate 1 are connected and fixed to the rear side of the conveyor belt frame of the bag making machine. By rotating the rotating disk 9, the hot melt kraft paper tape 10 on the outer wall of the rotating disk 9 is fed out. Under the action of the guide roller 11, the hot melt kraft paper tape 10 can be guided into the folding guide plate 3 for conveying. The sealing end of the paper bag on the bag making machine also enters the folding guide plate 3. As the internal space of the folding guide plate 3 gradually decreases, under the action of the V-shaped folding groove 6, the vertically conveyed hot melt kraft paper tape 10 can be folded on the outside of the paper bag sealing end. During the paper bag conveying process, the hot melt kraft paper tape 10 can be automatically folded and covered to cover the paper bag sealing end, eliminating the need for manual application by the operator. This greatly improves processing efficiency and practicality.

[0026] Example 2

[0027] like Figure 1-4As shown, the hot-melt composite sealing device of the fully automatic bag making machine according to an embodiment of this utility model includes an L-shaped connecting plate 1. A hot-press sealing frame 2 is fixedly connected to the top left side of the L-shaped connecting plate 1, and a folding guide plate 3 is fixedly connected to the top right side of the L-shaped connecting plate 1. A tape box 4 is fixedly connected to the rear right side of the folding guide plate 3. Threaded holes 5 are provided at equal intervals through the rear side of the inner wall of the L-shaped connecting plate 1. A V-shaped folding groove 6 is carved into the left side of the inner wall of the folding guide plate 3. The hot-press sealing frame 2 includes a grooved plate 12 and a telescopic cylinder 13. The top center of the grooved plate 12 is fixedly connected to the telescopic cylinder 13. The fixed end of the telescopic cylinder 13 extends into the grooved plate 12, and the movable end is connected to an L-shaped lifting plate 14. A rotating shaft 15 is equidistantly connected to the rear side of the inner wall of the L-shaped lifting plate 14 via bearings. A rubber sleeve 16 is fixedly fitted onto the outer wall of the rotating shaft 15. A hot melt tube 17 is equidistantly connected to the left side of the rotating shaft 15. The hot melt kraft paper tape 10 is folded on the outside of the paper bag seal and enters the groove plate 12, where it is conveyed on the bottom side of its inner wall. When the telescopic cylinder 13 is activated, the movable end of the telescopic cylinder 13 drives the L-shaped lifting plate 14 to descend, causing the rubber sleeve 16 on the outer wall of the rotating shaft 15 to press the hot melt kraft paper tape 10 folded at the seal. By controlling the downward pressure of the rubber sleeve 16 through the telescopic cylinder 13, the folded hot melt kraft paper tape 10 at the paper bag seal can be pressed firmly.

[0028] Example 3

[0029] like Figure 1-4 As shown, the hot-melt composite sealing device of the fully automatic bag making machine according to an embodiment of the present invention includes an L-shaped connecting plate 1. A hot-press sealing frame 2 is fixedly connected to the top left side of the L-shaped connecting plate 1. A folding guide plate 3 is fixedly connected to the top right side of the L-shaped connecting plate 1. A tape box 4 is fixedly connected to the rear right side of the folding guide plate 3. Threaded holes 5 are provided at equal intervals on the rear side of the inner wall of the L-shaped connecting plate 1. A V-shaped folding groove 6 is carved into the left side of the inner wall of the folding guide plate 3. The hot-melt tube 17 includes a fixed shaft 18 and a limiting ring 19. The limiting ring 19 is respectively sleeved and fixed to the outer walls of both ends of the fixed shaft 18. The rear end of the fixed shaft 18 is fixedly connected to the rear side of the inner wall of the L-shaped lifting plate 14. The front side of the rear limiting ring 19 is connected to the front side of the ring at equal intervals. An electric heating tube 20 is connected, with its front end fixedly connected to the rear side of the front limiting ring 19. A high-temperature cloth 21 is wrapped and fixed on the outside of the limiting ring 19, and the inside of the high-temperature cloth 21 is attached and fixed to the outside of the electric heating tube 20. When the hot melt kraft paper tape 10 folded at the sealing point of the paper bag is pressed tightly by the rubber sleeve 16, it passes through the bottom side of the hot melt tube 17. The electric heating tube 20 is then activated, and the heat generated by the electric heating tube 20 is absorbed and conducted by the high-temperature cloth 21. Then, the hot melt kraft paper tape 10 at the sealing point of the paper bag is heated and the adhesive layer melts. The adhesive penetrates the material surface through pressure, and after cooling, a physical bond is formed. This allows for automated sealing of the paper bag, further improving processing efficiency.

[0030] In summary, with the help of the above-mentioned technical solution of this utility model, when this device is in use, the L-shaped connecting plate 1 is connected and fixed to the rear side of the conveyor belt frame of the bag making machine. By rotating the rotating disk 9, the hot melt kraft paper tape 10 on the outer wall of the rotating disk 9 is fed out. Under the action of the guide roller 11, the hot melt kraft paper tape 10 can be guided into the folding guide plate 3 for conveying. At the same time, the sealing end of the paper bag on the bag making machine also enters the interior of the folding guide plate 3. As the internal space of the folding guide plate 3 gradually decreases, under the action of the V-shaped folding groove 6, the vertically conveyed hot melt kraft paper tape 10 can be folded on the outside of the sealing end of the paper bag. During the paper bag conveying process, the hot melt kraft paper tape 10 can be automatically folded to cover the sealing end of the paper bag, and the hot melt kraft paper tape 10 is folded on the outside of the sealing end of the paper bag. It enters the groove plate 12 and is conveyed on the bottom side of its inner wall. The telescopic cylinder 13 is activated, and the movable end of the telescopic cylinder 13 drives the L-shaped lifting plate 14 to descend, so that the rubber sleeve 16 on the outer wall of the rotating shaft 15 presses the hot melt kraft paper tape 10 folded at the sealing point. The telescopic cylinder 13 controls the downward pressure of the rubber sleeve 16, which can press the hot melt kraft paper tape 10 folded at the sealing point of the paper bag tightly. While the rubber sleeve 16 is pressing the hot melt kraft paper tape 10 folded at the sealing point of the paper bag tightly, it passes through the bottom side of the hot melt tube 17 and activates the electric heating tube 20. The heat generated by the electric heating tube 20 is absorbed and conducted by the high temperature cloth 21, and then the hot melt kraft paper tape 10 at the sealing point of the paper bag is heated and the adhesive layer melts. The pressure makes the adhesive penetrate the material surface and form a physical bond after cooling.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hot-melt composite sealing device for a fully automatic bag making machine, comprising an L-shaped connecting plate (1), characterized in that, A heat-sealing frame (2) is fixedly connected to the top left side of the L-shaped connecting plate (1), a folding guide plate (3) is fixedly connected to the top right side of the L-shaped connecting plate (1), a tape box (4) is fixedly connected to the rear right side of the folding guide plate (3), threaded holes (5) are provided at equal intervals on the rear side of the inner wall of the L-shaped connecting plate (1), and a V-shaped groove (6) is dug on the left side of the inner wall of the folding guide plate (3).

2. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 1, characterized in that, The tape box (4) has a tape outlet (7) on the right side. The folding guide plate (3) is specifically a trapezoidal groove plate structure. The inner walls of the tape box (4) are connected by a bearing and a connecting shaft (8).

3. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 2, characterized in that, A rotating disk (9) is fixedly fitted on the outer wall of the connecting shaft (8), and hot melt kraft paper tape (10) is wound on the outer wall of the rotating disk (9). A guide roller (11) is connected to the corner of the inner wall of the tape box (4) through a bearing.

4. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 3, characterized in that, The hot-press sealing frame (2) includes a grooved plate (12) and a telescopic cylinder (13). The top side of the grooved plate (12) is fixedly connected to the telescopic cylinder (13). The fixed end of the telescopic cylinder (13) extends into the grooved plate (12), and the movable end is connected to an L-shaped lifting plate (14).

5. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 4, characterized in that, The inner wall of the L-shaped lifting plate (14) is connected to a rotating shaft (15) at equal intervals via bearings. A rubber sleeve (16) is fixed on the outer wall of the rotating shaft (15). A hot melt pipe (17) is connected at equal intervals to the left side of the rotating shaft (15).

6. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 5, characterized in that, The hot melt tube (17) includes a fixed shaft (18) and a limiting ring (19). The limiting ring (19) is respectively sleeved and fixed on the outer walls of both ends of the fixed shaft (18). The rear end of the fixed shaft (18) is fixedly connected to the rear side of the inner wall of the L-shaped lifting plate (14).

7. The hot-melt composite sealing device for a fully automatic bag-making machine according to claim 6, characterized in that, The front side of the limiting ring (19) on the rear side is connected with an electric heating tube (20) at equal intervals. The front end of the electric heating tube (20) is fixedly connected to the rear side of the limiting ring (19) on the front side. The outer side of the limiting ring (19) is covered and fixed with a high temperature cloth (21). The inner side of the high temperature cloth (21) is attached and fixed to the outer side of the electric heating tube (20).

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