Express bag hot melt edge sealing processing device

Abstract

The application discloses an express bag hot-melt edge sealing processing device, and relates to the technical field of express bag edge sealing. The utility model discloses a support, the top of support is provided with the conveyer belt, one side of conveyer belt is provided with the edge sealing mechanism and cooling device body, the side that support is far away from edge sealing mechanism is fixedly installed with positioning mechanism, positioning mechanism is removed through spring, can carry out self -adaptation type positioning to different size express bag, simultaneously, through using the threaded rod to adjust fixed link, can adjust the strength of spring, thereby can adapt to greater express bag, improve the practicality of this device, through the heat sealing head of edge sealing mechanism can seal the mouth to express, simultaneously, through using the tension spring and support rod, can make heat sealing head when meeting the express bag of different size and sealing, can adjust, thereby prevent appearing virtual seal, over melt or scald wear condition, improve sealing effect.

Description

Technical Field

[0001] This application relates to the field of courier bag sealing technology, and in particular to a courier bag hot melt sealing processing device. Background Technology

[0002] Heat sealing technology for express delivery bags is a widely used sealing method in the packaging industry. Its technical background is mainly based on the principle that thermoplastic materials melt upon heating, adhere under pressure, and then cool and solidify to form a strong seal. This technology not only effectively prevents the contents of the package from being affected by the external environment but also ensures the integrity and safety of the packaging, making it particularly suitable for product packaging requiring high sealing performance.

[0003] Regarding the aforementioned technologies, the inventors believe the following problems still exist: Firstly, existing heat-sealing devices for express bags require manual adjustment of the position of the fixed baffle to limit the movement of express bags when heat-sealing them of different sizes. This method is not only cumbersome, but also inconvenient for adjusting express bags with some size differences.

[0004] Secondly, when heat-sealing express bags, traditional heat sealers usually use constant pressure and parallel pressing. However, if the plastic film thickness of the express bag is uneven or there are small wrinkles, and the heat sealer does not heat-seal it, there will be insufficient or excessive pressure in some areas, resulting in incomplete sealing, over-melting or even burn-through. The sealing edge strength is inconsistent and it is easy to crack, resulting in poor heat sealing effect.

[0005] To address the aforementioned problems, the inventors have proposed a hot-melt sealing device for express delivery bags, which solves these issues. Summary of the Invention

[0006] In order to improve the problem that some existing devices are inconvenient to use, the purpose of this utility model is to provide a hot melt sealing device for express bags.

[0007] To solve the above problems, this utility model provides the following solution: a hot-melt sealing device for express bags, including a support frame, a conveyor belt on the top surface of the support frame, a sealing mechanism and a cooling device body on one side of the conveyor belt, a positioning mechanism fixedly installed on the side of the support frame away from the sealing mechanism, the positioning mechanism including a support plate, the support plate fixedly installed on one side of the top surface of the support frame, two fixing rods inserted into one side of the support plate, both fixing rods slidingly passing through both sides of the support plate, slide rods slidably inserted into the ends of the two fixing rods near the conveyor belt, springs movably sleeved on the outer surfaces of the two slide rods, one end of each spring fixedly connected to the two fixing rods, a positioning plate fixedly installed on the ends of the two springs and the two slide rods opposite to the fixing rods, an arc-shaped plate fixedly installed on one end of the positioning plate, two threaded rods threadedly inserted into the top surface of the support plate, the bottom ends of the two threaded rods respectively inserted into the two fixing rods.

[0008] Preferably, the sealing mechanism includes a support shell, which is fixedly installed on one side of the top surface of the bracket. A drive cylinder is fixedly installed on the top surface of the support shell. A slider is fixedly installed through the telescopic end of the drive cylinder, and the slider is slidably installed between the inner walls of both sides of the support shell. An mounting shell is fixedly installed on one side of the slider. A support rod is fixedly installed between the inner walls of both sides of the mounting shell. A mounting seat is movably fitted on the outer surface of the support rod. A circular groove for cooperating with the support rod is opened in the middle of one side of the mounting seat. Tension springs are fixedly installed on the upper inner walls of both sides of the mounting shell. The bottom ends of the two tension springs are fixedly connected to the top sides of the two mounting seats respectively. A heat sealing head is fixedly installed on the bottom surface of the mounting seat.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a positioning mechanism and using a spring to drive the positioning mechanism to move, can adaptively position express bags of different sizes. At the same time, by using a threaded rod to adjust the fixing rod, the strength of the spring can be adjusted, thereby accommodating larger express bags and improving the practicality of this device.

[0010] 2. This utility model, by setting up an edge sealing mechanism, can seal express packages through the heat sealing head of the edge sealing mechanism. At the same time, by using tension springs and support rods, the heat sealing head can be adjusted when sealing express packages of different sizes, thereby preventing incomplete sealing, over-melting, or burn-through, and improving the sealing effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model.

[0014] Figure 3 This is a schematic diagram of the edge-sealing mechanism of this utility model.

[0015] In the diagram: 1. Support; 11. Conveyor belt; 2. Positioning mechanism; 21. Arc plate; 22. Positioning plate; 23. Spring; 24. Slide rod; 25. Threaded rod; 26. Threaded groove; 27. Fixed rod; 28. Support plate; 3. Edge sealing mechanism; 31. Support shell; 32. Drive cylinder; 33. Slider; 34. Support rod; 35. Mounting shell; 36. Heat sealing head; 37. Mounting seat; 38. Circular groove; 39. Tension spring; 4. Cooling device body. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-3 As shown, this utility model provides a hot melt sealing processing device for express bags, including a bracket 1. The bracket 1 is used as prior art and can support the device to prevent it from falling off.

[0018] A conveyor belt 11 is provided on the top surface of the support 1. The conveyor belt 11 is used as existing technology and can transport express bags.

[0019] A sealing mechanism 3 and a cooling device body 4 are provided on one side of the conveyor belt 11. The sealing mechanism 3 can seal the express bag. By setting the sealing mechanism 3, the hot sealing head 36 of the sealing mechanism 3 can seal the express bag. At the same time, by using the tension spring 39 and the support rod 34, the hot sealing head 36 can be adjusted when sealing express bags of different sizes, thereby preventing incomplete sealing, over-melting or burn-through, and improving the sealing effect.

[0020] A positioning mechanism 2 is fixedly installed on the side of the bracket 1 away from the sealing mechanism 3. The positioning mechanism 2 can position the courier bag so that it is close to the side of the sealing mechanism 3. By setting the positioning mechanism 2, the positioning plate 22 is moved by the spring 23, which can adaptively position courier bags of different sizes. At the same time, by adjusting the fixing rod 27 by using the threaded rod 25, the strength of the spring 23 can be adjusted, thereby accommodating larger courier bags and improving the practicality of the device.

[0021] The positioning mechanism 2 includes a support plate 28, which is used in the prior art and can support the structure.

[0022] The support plate 28 is fixedly installed on one side of the top surface of the bracket 1 to prevent it from falling off.

[0023] Two fixing rods 27 are inserted into one side of the support plate 28. Both fixing rods 27 slide through both sides of the support plate 28 and can slide inside the support plate 28 to adjust the positioning plate 22.

[0024] Each of the two fixed rods 27 has a sliding rod 24 inserted into one end near the conveyor belt 11, so that the two sliding rods 24 slide and extend inside the ends of the two fixed rods 27.

[0025] Springs 23 are movably sleeved on the outer surfaces of the two sliding rods 24. One end of each spring 23 is fixedly connected to a fixed rod 27, which fixes the springs and prevents them from falling off.

[0026] The positioning plate 22 is fixedly installed on one end of the two springs 23 and the two slide rods 24 facing away from the fixed rod 27. The springs 23 are a mature existing technology, which can drive the two slide rods 24 to slide and extend inside the end of the fixed rod 27, thereby driving the positioning plate 22 to move. It can be adaptively adjusted according to the size of the express bag.

[0027] The positioning plate 22 is attached to the top surface of the conveyor belt 11 to position the express bag on the conveyor belt 11.

[0028] An arc-shaped plate 21 is fixedly installed at one end of the positioning plate 22. The arc-shaped plate 21 serves as a guide structure, which can guide the express bag to move to the appropriate position.

[0029] The top surface of the support plate 28 is threaded with two threaded rods 25, which are used in the prior art.

[0030] Handwheels are fixedly installed at the top of both threaded rods 25, which make it easier to rotate the threaded rods 25.

[0031] The top surface of the support plate 28 has two threaded grooves 26, and the threaded rods 25 are threadedly inserted into the threaded grooves 26, so that the two threaded rods 25 can rotate and move downward inside the threaded grooves 26.

[0032] The bottom ends of the two threaded rods 25 are respectively inserted into the two fixed rods 27, thereby fixing the fixed rods 27.

[0033] The edge sealing mechanism 3 includes a support shell 31, which serves as a support component to support the structure.

[0034] The support shell 31 is fixedly installed on one side of the top surface of the bracket 1 to prevent it from falling off.

[0035] The interior of the support shell 31 is hollowed out, allowing the slider 33 to slide inside the support shell 31.

[0036] A drive cylinder 32 is fixedly installed on the top surface of the support shell 31. The drive cylinder 32 is used as prior art. The telescopic end of the drive cylinder 32 moves through the support shell 31 and is fixedly installed on a slider 33. When the drive cylinder 32 is in use, it can drive the slider 33 to move, so that it can be raised or lowered.

[0037] The slider 33 is slidably installed between the inner walls of both sides of the support shell 31. The slider 33 is used as prior art, allowing it to slide inside the support shell 31, thereby enabling lifting and lowering.

[0038] A mounting shell 35 is fixedly installed on one side of the slider 33. The cross-sectional shape of the mounting shell 35 is inverted U-shaped. The mounting shell 35 can support the mounting base 37 and at the same time, allow the mounting base 37 to move.

[0039] A support rod 34 is fixedly installed between the inner walls of both sides of the mounting shell 35. A mounting seat 37 is movably fitted on the outer surface of the support rod 34. A circular groove 38 is opened in the middle of one side of the mounting seat 37 to cooperate with the support rod 34, so that the mounting seat 37 can rotate inside the mounting shell 35 through the support rod 34, thereby adapting to express bags of different thicknesses.

[0040] Tension springs 39 are fixedly installed on the inner walls of both sides of the mounting shell 35 of the support rod 34. The two tension springs 39 are distributed in a mirror image. The bottom ends of the two tension springs 39 are fixedly connected to the top sides of the two mounting bases 37 respectively. The support rod 34 can be adjusted according to the thickness of the express bag through the two tension springs 39.

[0041] A heat sealing head 36 is fixedly installed on the bottom surface of the mounting base 37. As a prior art technology, the heat sealing head 36 can heat the express bag to seal its edges.

[0042] Working principle: First, the express bag is placed on the top surface of the conveyor belt 11 on the top surface of the support 1. The conveyor belt 11 will drive the express bag to move. At the same time, when the express bag moves, it will be guided by the arc plate 21 and squeeze the positioning plate 22 according to its size. The positioning plate 22 cooperates with the slide rod 24 through the spring 23 to keep the express bag in position, but does not fix it. It always moves along the side of the support 1 to the edge sealing mechanism 3, which facilitates the edge sealing mechanism 3 to seal the edge.

[0043] Meanwhile, when it is necessary to locate an excessively large package, first rotate the threaded rod 25 in the opposite direction so that the threaded rod 25 rotates inside the threaded groove 26 and is released from the fixation of the fixed rod 27. Then slide the fixed rod 27 so that it drives the slide rod 24, the spring 23 and the positioning plate 22 to move together for adjustment.

[0044] Start the drive cylinder 32, which drives the slider 33 to move. The slider 33 slides inside the support shell 31 and drives the mounting shell 35 to move. The mounting shell 35 drives the heat sealing head 36 to descend through the mounting base 37 to seal the edges of the express bag.

[0045] When the express bag is bulging and uneven, the heat sealing head 36 descends to seal its edges. Through contact with the bag, the heat sealing head 36 rotates via the support rod 34, thus improving the sealing effect. After heat sealing, the heat sealing head 36 and the mounting base 37 are reset via the tension spring 39, and the express bag passes through the cooling device body 4, which cools it.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A heat-sealing device for express delivery bags, comprising a support frame (1), characterized in that: The top surface of the support (1) is provided with a conveyor belt (11), and a sealing mechanism (3) and a cooling device body (4) are provided on one side of the conveyor belt (11). A positioning mechanism (2) is fixedly installed on the side of the support (1) away from the sealing mechanism (3). The positioning mechanism (2) includes a support plate (28), which is fixedly installed on one side of the top surface of the bracket (1). Two fixing rods (27) are inserted into one side of the support plate (28). The two fixing rods (27) slide through both sides of the support plate (28). The ends of the two fixing rods (27) near the conveyor belt (11) are slidably inserted with slide rods (24). The outer surfaces of the two slide rods (24) are movably fitted with springs (23). One end of the two springs (23) is fixedly connected to the two fixing rods (27). The ends of the two springs (23) and the two slide rods (24) facing away from the fixing rods (27) are fixedly installed with a positioning plate (22). One end of the positioning plate (22) is fixedly installed with an arc plate (21). The top surface of the support plate (28) is threaded with two threaded rods (25). The bottom ends of the two threaded rods (25) are respectively inserted into the two fixing rods (27).

2. The express bag hot-melt sealing device according to claim 1, characterized in that: The edge sealing mechanism (3) includes a support shell (31), which is fixedly installed on one side of the top surface of the bracket (1). A drive cylinder (32) is fixedly installed on the top surface of the support shell (31). The telescopic end of the drive cylinder (32) moves through the support shell (31) and a slider (33) is fixedly installed thereon. The slider (33) is slidably installed between the inner walls of both sides of the support shell (31). A mounting shell (35) is fixedly installed on one side of the slider (33). A support rod (34) is fixedly installed between the inner walls of the two sides. A mounting seat (37) is movably sleeved on the outer surface of the support rod (34). A circular groove (38) is opened in the middle of one side of the mounting seat (37) to cooperate with the support rod (34). Tension springs (39) are fixedly installed on the inner walls of both sides of the mounting shell (35). The bottom ends of the two tension springs (39) are fixedly connected to the top sides of the two mounting seats (37) respectively. A heat sealing head (36) is fixedly installed on the bottom surface of the mounting seat (37).

3. The express bag hot-melt sealing device according to claim 1, characterized in that: Handwheels are fixedly installed at the top of both threaded rods (25).

4. The express bag hot-melt sealing device according to claim 1, characterized in that: The top surface of each support plate (28) has two threaded grooves (26), and the threaded rod (25) is threaded into the threaded groove (26).

5. The express bag hot-melt sealing device according to claim 1, characterized in that: The positioning plate (22) is attached to the top surface of the conveyor belt (11).

6. The hot-melt sealing device for express delivery bags according to claim 2, characterized in that: The interior of the support shell (31) is hollowed out.

7. The express bag hot-melt sealing device according to claim 2, characterized in that: The two tension springs (39) are mirror images of each other.

8. The express bag hot-melt sealing device according to claim 2, characterized in that: The cross-sectional shape of the mounting shell (35) is an inverted U-shape.

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