A device for applying adhesive to a bag

Abstract

The utility model provides a kind of packing bag gluing strip pasting device, including edge sealing mechanism and bottom sealing mechanism, the edge sealing mechanism includes first casing, the inside of first casing is provided with first gluing device, the lower end both sides of first gluing device are provided with glue outlet pipe, the end portion of glue outlet pipe is fixedly connected with sector nozzle, the inside of first casing is provided with support roller and mounting roller side by side, the side wall of mounting roller is all fixedly connected with cutter, the bottom sealing mechanism includes second casing, the upper end of second casing is provided with first conveying mechanism and second conveying mechanism, the upper portion side wall of second casing is provided with opening, bag body cut off by cutter falls on first conveying mechanism, and one end slides into opening, the side gap of opening is big, the other side gap is small, and the gap small section is sequentially provided with guide plate, folding guide piece and support plate. The utility model can realize the operation of automatic edge sealing bottom sealing.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to a packaging bag adhesive strip applicator. Background Technology

[0002] Packaging bags are bags used to package various goods, making them convenient to transport and store during production and distribution. They are widely used in daily life and industrial production.

[0003] Since the profit margin of a single packaging bag is relatively low, mass production is generally used to increase production profits. This application provides an apparatus for mass production of adhesive strips to meet the needs of automated mass production. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a packaging bag adhesive strip applicator, comprising an edge sealing mechanism and a bottom sealing mechanism, wherein the bottom sealing mechanism is located on one side of the edge sealing mechanism.

[0005] The edge-sealing mechanism includes a first housing, inside which a first adhesive applicator is disposed. Adhesive outlet pipes are disposed on both sides of the lower end of the first adhesive applicator, and fan-shaped nozzles are fixedly connected to the ends of the outlet pipes. Inside the first housing, a support roller and an installation roller are arranged side-by-side, and cutters are fixedly connected to the side walls of the installation rollers. That is, the adhesive sprayed from the fan-shaped nozzles passes through the support rollers and installation rollers and is then cut off by the cutters.

[0006] The sealing mechanism includes a second housing. A first conveying mechanism and a second conveying mechanism are inclinedly arranged at the upper end of the second housing. An opening is provided on the upper sidewall of the second housing. The bag, cut by the blade, falls onto the first conveying mechanism, with one end sliding into the opening. The length of the first conveying mechanism is greater than the length of the second conveying mechanism. During conveying, the bag is ultimately clamped between the first and second conveying mechanisms.

[0007] The opening has a large gap on one side and a small gap on the other side. The section with the smaller gap is provided with a guide plate, a folding guide, and a support plate in sequence. A first pressure roller is provided above the guide plate. The folding guide is folded in half from the middle and gradually bent at 30° from one end to the other end. An inner tongue plate is provided inside the folding guide. A second pressure roller is provided above the support plate.

[0008] A second adhesive applicator is fixedly connected to one side of the second housing. An adhesive applicator wheel is provided on one side of the lower end of the second adhesive applicator, and a pre-set nozzle inside the second adhesive applicator sprays adhesive onto the surface of the adhesive applicator wheel. The provided guide plate, folding guide, support plate, and second adhesive applicator fold and adhere the seal to the end of the bag body.

[0009] Preferably, the first housing is internally equipped with a guide roller and a pair of pressure rollers, and a first motor and a second motor are disposed on the side wall of the first housing. The output end of the first motor is connected to the mounting roller for transmission, and the output end of the second motor is connected to the pressure roller for conveying. The first motor and the second motor are used to drive the rotation of the internal components of the first housing, while the pressure rollers are used to adhere the two bag bodies together.

[0010] Preferably, the first housing has a collection groove inside, located below the fan-shaped nozzle. Excess glue enters the collection groove.

[0011] Preferably, a second corner bracket is provided below the collection slot, and the second corner bracket is fixedly connected to the first housing. The second corner bracket is provided to fix the collection slot.

[0012] Preferably, a first corner bracket is fixedly connected to the side wall of the first adhesive applicator, and the first corner bracket is fixedly connected to the first housing. The same first corner bracket is used for fixing the first adhesive applicator.

[0013] Preferably, a third motor is fixedly connected to the side wall of the second housing, and the output end of the third motor is connected to the first conveying mechanism. That is, when the third motor is working, it drives the operation of the first conveying mechanism.

[0014] Preferably, a baffle is fixedly connected to the side wall of the second housing, and the baffle is located on the side with the larger opening gap. A side plate is provided on the side of the second housing, and a guide wheel is provided between the second housing and the side plate. The baffle limits the length of the bag that extends into the opening.

[0015] A method for applying adhesive to packaging bags includes the following: Step 1, edge sealing: Two bags enter the interior of the first shell from the top and bottom respectively. Then, a fan-shaped nozzle sprays glue onto the upper edge of the lower bag, and the edges of the two bags are bonded together to form a sealed edge. Finally, the bag is cut off by a knife. Step 2, bottom sealing: The cut bag falls to the first conveying mechanism, with one end entering the opening. Under the conveying of the first conveying mechanism, it passes through the guide plate, the folding guide, and the support plate in sequence. During the process, the seal passes through the glue-applying wheel. Under the guidance of the guide plate and the pressing of the first pressure roller, one side of the seal is adhered to the end of the bag. Then, the seal passes through the folding guide and is folded over. Under the pressing of the second pressure roller, the other side of the seal is adhered to the end of the bag.

[0016] The beneficial effects of this utility model are as follows: It is equipped with an edge sealing mechanism and a bottom sealing mechanism. The edge sealing mechanism can apply glue to the edges of two bag bodies and bond them together. In addition, the bonded bag bodies are cut off and then enter the bottom sealing mechanism. With the help of components such as guide plate, folding guide, support plate, and second glue application device, the seal can be folded and bonded to the end of the bag body, realizing automated mass production. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the edge-sealing mechanism of this utility model; Figure 3 This is a three-dimensional schematic diagram of the bottom sealing mechanism of this utility model; Figure 4 This is a schematic diagram of the internal structure of the edge-sealing mechanism of this utility model; Figure 5 This is a partial side view of the sealing mechanism of this utility model; Figure 6 This is a partial three-dimensional schematic diagram of the bottom sealing mechanism of this utility model; Figure 7 This is a schematic diagram of the structure of the packaging bag produced by this utility model.

[0018] List of reference numerals in the attached diagram: 1. Sealing mechanism; 2. Bottom sealing mechanism; 1'. Seal; 2'. Sealing edge; 3'. Bag body; 11. First housing; 12. First motor; 13. Second motor; 14. First glue applicator; 15. First corner bracket; 16. Guide roller; 17. Second corner bracket; 18. Glue outlet pipe; 19. Fan-shaped nozzle; 110. Collection trough; 111. Pressure roller; 112. Support roller; 113. Cutting tool; 114. Mounting roller; 21. Side plate; 22. Second housing; 23. First conveying mechanism; 24. Second conveying mechanism; 25. Third motor; 26. Guide wheel; 27. Second glue applicator; 28. Opening; 29. ​​Glue applicator wheel; 210. Guide plate; 211. First pressure roller; 212. Folding guide; 213. Support plate; 214. Second pressure roller; 215. Inner tongue plate. Detailed Implementation

[0019] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0020] like Figures 1 to 7 As shown, a packaging bag adhesive stripping device includes an edge sealing mechanism 1 and a bottom sealing mechanism 2, with the bottom sealing mechanism 2 located on one side of the edge sealing mechanism 1.

[0021] The sealing mechanism 1 includes a first housing 11, which is composed of several sheet metal parts. The first housing 11 is equipped with a first glue applicator 14, which has a structure for melting hot melt adhesive. The lower ends of the first glue applicator 14 are equipped with glue outlet pipes 18 on both sides. The ends of the glue outlet pipes 18 are fixedly connected to fan-shaped nozzles 19. The molten adhesive is sent out through the glue pipes 18 and the fan-shaped nozzles 19 and sprayed onto the edge of the bag body 3'. The first housing 11 is equipped with a support roller 112 and an installation roller 114 arranged side by side. The side walls of the installation roller 114 are fixedly connected with cutters 113. After the two bags 3' are glued, the cutters 113 cut them off during rotation.

[0022] The sealing mechanism 2 includes a second housing 22, which is also composed of sheet metal parts. The upper end of the second housing 22 is inclinedly provided with a first conveying mechanism 23 and a second conveying mechanism 24. The length of the first conveying mechanism 23 is greater than the length of the second conveying mechanism 24. The upper side wall of the second housing 22 is provided with an opening 28. The bag body 3' cut by the cutter 113 falls on the first conveying mechanism 23 and one end slides into the opening 28. During the conveying process, the bag body 3' is clamped and conveyed by the first conveying mechanism 23 and the second conveying mechanism 24.

[0023] One side of the opening 28 has a larger gap, which facilitates the insertion of the end of the bag body 3' into the opening 28. The other side has a smaller gap, and the section with the smaller gap is successively equipped with a guide plate 210, a folding guide 212, and a support plate 213. A first pressure roller 211 is located above the guide plate 210. When the seal 1' passes through the upper end of the guide plate 210, one side of the seal 1' wraps around the end of the bag body 3', and under the rolling pressure of the first pressure roller 211, the two... For bonding, the folding guide 212 is folded in half from the middle, and gradually bent at 30° from one end to the other end. As the seal 1' passes through the folding guide 212, it gradually folds in half. The folding guide 212 has an inner tongue plate 215 inside, which facilitates the bending of the seal 1'. A second pressure roller 214 is provided above the support plate 213 for rolling and pressing the other side of the folded seal 1', that is, folding and attaching the other side of the seal 1' to the end of the bag body 3'.

[0024] A second adhesive applicator 27 is fixedly connected to one side of the second housing 22. An adhesive applicator 29 is provided on the lower side of the second adhesive applicator 27. The nozzle inside the second adhesive applicator 27 sprays adhesive onto the surface of the adhesive applicator 29. That is, the second adhesive applicator 27 applies adhesive to the surface of the seal 1' by the transfer of the adhesive applicator 29, and then the seal 1' is attached to the end of the bag body 3'. Furthermore, the seal 1' has a metal wire or other high-strength thread inside for tearing open the bag body 3'.

[0025] The first housing 11 is internally equipped with a guide roller 16 and a pair of pressure rollers 111. The pressure rollers 111 roll the two bag bodies 3' so that the bag bodies 3' are fully in contact with the glue and bonded together. The side wall of the first housing 11 is equipped with a first motor 12 and a second motor 13. The output end of the first motor 12 is connected to the mounting roller 114, that is, the first motor 12 drives the mounting roller 114 to rotate. Furthermore, the ends between the mounting roller 114 and the support roller 112 are provided with meshing gears. The output end of the second motor 13 is connected to the pressure roller 111. Similarly, the second motor 13 drives the pressure roller 111 to rotate. Furthermore, the two pressure rollers 111 are also provided with meshing gears.

[0026] The first housing 11 has a collection tank 110 inside, which is located below the fan-shaped nozzle 19 and collects excess glue.

[0027] A second bracket 17 is provided below the collection tank 110, and the second bracket 17 is fixedly connected to the first housing 11. The collection tank 110 is fixedly connected to the inner wall of the first housing 11 by the second bracket 17.

[0028] A first angle bracket 15 is fixedly connected to the side wall of the first adhesive applicator 14, and the first angle bracket 15 is fixedly connected to the first housing 11. Similarly, the first adhesive applicator 14 is fixed to the first housing 11 by the first angle bracket 15.

[0029] A third motor 25 is fixedly connected to the side wall of the second housing 22. The output end of the third motor 25 is connected to the first transmission mechanism 23. When the third motor 25 is started, the first transmission mechanism 23 is activated. In addition, a gear is provided on one end of the shaft of the second transmission mechanism 24 and a gear is provided on one end of the shaft of the first transmission mechanism 23. The two gears mesh with each other.

[0030] A baffle is fixedly connected to the side wall of the second housing 22, and the baffle is located on the side with the larger gap of the opening 28. The baffle restricts the distance of the bag body 3' into the opening 28. A side plate 21 is provided on the side of the second housing 22, and a guide wheel 26 is provided between the second housing 22 and the side plate 21. The seal 1' contacts the glue-applying wheel 29 under the guidance of the guide wheel 26.

[0031] A method for applying adhesive to packaging bags includes the following: Step 1, sealing treatment: Two bag bodies 3' enter the interior of the first shell 11 from the top and bottom respectively. Then, the fan-shaped nozzle 19 sprays glue on the upper edge of the bag body 3' located at the bottom. The edges of the two bag bodies 3' are bonded together to form a sealing edge 2', which is finally cut off by the cutter 113. Step 2, bottom sealing: The cut bag body 3' falls to the first conveying mechanism 23, and one end enters the opening 28. Under the conveying of the first conveying mechanism 23, it passes through the guide plate 210, the folding guide 212 and the support plate 213 in sequence. During the process, after the seal 1' passes through the glue-applying wheel 29, under the guidance of the guide plate 210 and the pressing of the first pressure wheel 211, one side of the seal 1' is adhered to the end of the bag body 3'. Then, after the seal 1' passes through the folding guide 212, it is folded over, and under the pressing of the second pressure wheel 214, the other side of the seal 1' is adhered to the end of the bag body 3'.

[0032] It should be noted that the above solution also includes relevant sensors, such as photoelectric sensors and position sensors, to calculate and detect information such as the position of the bag 3', in order to meet the needs of automated production.

[0033] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A packaging bag adhesive strip applicator, characterized in that, It includes an edge sealing mechanism (1) and a bottom sealing mechanism (2), with the bottom sealing mechanism (2) located on one side of the edge sealing mechanism (1); The sealing mechanism (1) includes a first housing (11), inside which a first glue applicator (14) is provided. On both sides of the lower end of the first glue applicator (14) are glue outlet pipes (18). At the end of the glue outlet pipes (18), a fan-shaped nozzle (19) is fixedly connected. Inside the first housing (11), a support roller (112) and an installation roller (114) are arranged side by side. The side walls of the installation roller (114) are fixedly connected with a cutter (113). The sealing mechanism (2) includes a second housing (22), and the upper end of the second housing (22) is provided with a first conveying mechanism (23) and a second conveying mechanism (24). The upper side wall of the second housing (22) is provided with an opening (28). The bag body (3') cut by the knife (113) falls on the first conveying mechanism (23) and one end slides into the opening (28). The opening (28) has a large gap on one side and a small gap on the other side. The section with the small gap is provided with a guide plate (210), a folding guide (212), and a support plate (213) in sequence. A first pressure roller (211) is provided above the guide plate (210). The folding guide (212) is folded in half from the middle and gradually bent from 180° at one end to 30° at the other end. An inner tongue plate (215) is provided inside the folding guide (212). A second pressure roller (214) is provided above the support plate (213). A second adhesive applicator (27) is fixedly connected to one side of the second housing (22). An adhesive applicator (29) is provided on one side of the lower end of the second adhesive applicator (27), and a nozzle preset inside the second adhesive applicator (27) sprays adhesive onto the surface of the adhesive applicator (29).

2. The packaging bag adhesive strip applicator according to claim 1, characterized in that: The first housing (11) is provided with a guide roller (16) and a pair of pressure rollers (111) inside. The first housing (11) is provided with a first motor (12) and a second motor (13) on its side wall. The output end of the first motor (12) is connected to the mounting roller (114) for transmission, and the output end of the second motor (13) is connected to the pressure roller (111) for transmission.

3. The packaging bag adhesive strip applicator according to claim 1, characterized in that: The first housing (11) has a collection groove (110) inside, which is located below the fan-shaped nozzle (19).

4. The packaging bag adhesive strip applicator according to claim 3, characterized in that: A second corner bracket (17) is provided below the collection groove (110), and the second corner bracket (17) is fixedly connected to the first housing (11).

5. The packaging bag adhesive strip applicator according to claim 1, characterized in that: The first adhesive applicator (14) has a first corner bracket (15) fixedly connected to its side wall, and the first corner bracket (15) is fixedly connected to the first housing (11).

6. The packaging bag adhesive strip applicator according to claim 1, characterized in that: A third motor (25) is fixedly connected to the side wall of the second housing (22), and the output end of the third motor (25) is connected to the first transmission mechanism (23).

7. The packaging bag adhesive strip applicator according to claim 1, characterized in that: A baffle is fixedly connected to the side wall of the second housing (22), and the baffle is located on the side with a large gap in the opening (28). A side plate (21) is provided on the side of the second housing (22), and a guide wheel (26) is provided between the second housing (22) and the side plate (21).

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