Heat sealing assembly and aluminum plastic packaging bag processing device

Abstract

The utility model discloses a heat sealing assembly and an aluminum plastic packaging bag processing device, and relates to the technical field of packaging bag processing. The device comprises a shell, one side of the shell is open, a sliding plate is connected to the inner wall of the bottom of the shell in a sliding mode, a sealing plate is fixedly connected to the side, away from the shell, of the sliding plate, and a sealing gasket is bonded to the open side of the shell and used in cooperation with the sealing plate; and the vacuumizing mechanism is arranged at the bottom of the shell and used for reducing the pressure in the shell. According to the packaging bag heat sealing device, when heat sealing is conducted on a packaging bag, air in the shell can be extracted, negative pressure is formed in the shell, air in the packaging bag is reduced, the problem that the packaging bag expands due to heat change after hot pressing is avoided, meanwhile, the end of the packaging bag can be limited, the heat sealing quality is improved, the sliding frame can move, and the sliding frame is convenient to use. And packaging bags with different widths can be subjected to heat sealing, and the use flexibility is improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging bag processing technology, and in particular relates to a heat-sealing component and an aluminum-plastic packaging bag processing device. Background Technology

[0002] Heat sealing of aluminum-plastic composite bags is a specialized sealing process for aluminum foil and plastic composite materials. By precisely controlling temperature (typically 150-220℃), pressure, and time, the inner polyethylene (PE) or polypropylene (PP) layer melts and bonds together, while simultaneously preventing high-temperature damage to the aluminum foil layer. This process utilizes the barrier properties of aluminum foil and the thermoplasticity of plastics to create a highly airtight, moisture-proof, and light-protected sealing structure, widely used in packaging products with high protection requirements such as pharmaceuticals, coffee, and milk powder.

[0003] A search revealed a heat-sealing device for aluminum-plastic packaging bag production equipment disclosed in announcement number CN222201896U. The device includes a base, and a driving device is fixedly connected to the upper right end of the support plate. Although the device can be adjusted according to the thermoforming position of the aluminum-plastic packaging bag and is easy to operate, the packaging bag may contain too much gas inside during the heat sealing process due to factors such as heat sensitivity or its own characteristics. This gas is prone to expansion when heated later. Therefore, a heat-sealing component and an aluminum-plastic packaging bag processing device are proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-sealing component and an aluminum-plastic packaging bag processing device. When heat-sealing the packaging bag, it can extract the air from the shell to create a negative pressure inside, reducing the air inside the packaging bag and avoiding the problem of the packaging bag expanding due to heat changes after heat pressing. At the same time, it can restrict the ends of the packaging bag, improving the quality of heat sealing. Furthermore, the sliding frame can move to heat-seal packaging bags of different widths, improving the flexibility of use and solving the existing technical problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A heat-sealing assembly includes: a housing, one side of which is open; a sliding plate is slidably connected to the bottom inner wall of the housing; a sealing plate is fixedly connected to the side of the sliding plate away from the housing; and a sealing gasket is adhered to the open side of the housing to cooperate with the sealing plate. When heat-sealing a packaging bag, the air in the housing can be extracted to create a negative pressure inside, reducing the air inside the packaging bag and preventing the packaging bag from expanding due to heat changes after heat sealing.

[0007] A vacuuming mechanism is provided at the bottom of the housing to reduce the pressure inside the housing;

[0008] A heat-sealing mechanism is disposed between the housing and the slide plate for heat-sealing the packaging bag.

[0009] As a further embodiment of this utility model, the vacuuming mechanism includes a vacuum pump and a gas storage tank fixed to the bottom of the housing. The pumping end of the vacuum pump is fixedly connected to the gas storage tank through a pipe. A suction pipe is fixedly connected between one side of the gas storage tank and one side of the housing. The mechanism also includes an exhaust pipe fixedly connected to one side of the housing. Solenoid valves are installed on the exhaust pipe, the suction pipe, and the pumping end of the vacuum pump.

[0010] As a further embodiment of this utility model, the heat sealing mechanism includes a lower heating plate and a cylinder. The lower heating plate is fixed on the surface of the slide plate, and the cylinder is fixed on the top inner wall of the housing. One end of the cylinder piston rod is fixedly connected to the upper heating plate.

[0011] As a further embodiment of this utility model, the bottom of the skateboard is fixedly connected to two L-shaped support frames, and the surfaces of the support frames are fixedly connected to vertically arranged limiting plates. The bottom of the shell is fixedly connected to two horizontal plates, and the two limiting plates are located between the two horizontal plates.

[0012] This utility model also proposes an aluminum-plastic packaging bag processing device, including a heat sealing component and two guide boxes. Both guide boxes are fixed on the surface of the slide plate. A continuously bent positioning frame is slidably connected inside each of the two guide boxes for pressing the packaging bag. A spring is sleeved on the circumference of each positioning frame. The two ends of the spring are connected to the slide plate and the guide box through spring seats. A connecting rod is fixedly connected between the two positioning frames.

[0013] As a further embodiment of this utility model, an L-shaped hand lever is rotatably connected to the top of the connecting rod, and a positioning plate is fixedly connected to one side of the sealing plate to cooperate with the hand lever.

[0014] As a further improvement of this utility model, an L-shaped sliding frame is slidably connected to one side of the positioning frame, and a through-hole top screw is threaded to the top of the sliding frame. The positioning frame can restrict the end of the packaging bag, improve the quality of heat sealing, and the sliding frame can move to heat seal packaging bags of different widths, improving the flexibility of use.

[0015] In this application, during use, the slide plate is pulled out, the packaging bag to be heat-sealed is placed on the slide plate, the positioning frame is pulled up by the lever, and then the lever is rotated to hang on the positioning plate, thus keeping the positioning frame from falling. Then, the end of the packaging bag to be heat-sealed is straightened and placed on the lower heating plate. The positioning frame is released, and the spring is used to press the positioning frame against the end of the packaging bag to facilitate heat sealing. Then, the slide plate and sealing plate are reset, the vacuum pump is started, and the vacuum pump extracts air from the air tank. After the solenoid valve on the air extraction pipe is opened, the air in the shell is extracted, creating a negative pressure inside, reducing the air in the packaging bag, and avoiding the problem of the packaging bag expanding due to heat changes after heat sealing. During heat sealing, the cylinder is started, and the cylinder drives the upper heating plate to descend, thus cooperating with the lower heating plate to complete the sealing of the packaging bag.

[0016] The embodiments of this utility model have the following beneficial effects:

[0017] In this invention, by installing a vacuum mechanism at the bottom of the housing, the air in the housing can be extracted during heat sealing of the packaging bag, creating a negative pressure inside the packaging bag, reducing the amount of air inside the packaging bag, and preventing the packaging bag from expanding due to heat changes after heat sealing.

[0018] In this invention, the positioning frame and the sliding frame work together to restrict the end of the packaging bag, thereby improving the heat sealing quality. The sliding frame is movable and can heat seal packaging bags of different widths, thus increasing the flexibility of use.

[0019] In this invention, when heat-sealing the packaging bag, air can be extracted from the shell to create a negative pressure inside, reducing the amount of air inside the packaging bag and preventing the packaging bag from expanding due to heat changes after heat sealing. At the same time, the ends of the packaging bag can be restricted to improve the quality of heat sealing. Furthermore, the sliding frame can move to heat-seal packaging bags of different widths, increasing the flexibility of use.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.

[0022] Figure 1 This is a schematic diagram of the slide plate in the withdrawn state according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of a skateboard structure according to an embodiment of the present invention;

[0024] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram of point A in the middle;

[0025] Figure 4 This is a cross-sectional view of the shell structure according to an embodiment of the present invention.

[0026] In the diagram: 1. Housing; 2. Slide plate; 3. Sealing plate; 4. Support frame; 5. Guide box; 6. Positioning frame; 7. Sliding frame; 8. Top screw; 9. Lower heating plate; 10. Limiting plate; 11. Connecting rod; 12. Hand lever; 13. Spring; 14. Positioning plate; 15. Cylinder; 16. Upper heating plate; 17. Horizontal plate; 18. Exhaust pipe; 19. Air tank; 20. Vacuum pump; 21. Suction pipe. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0029] Example 1

[0030] Please see Figures 1-4 As shown, this embodiment provides a heat-sealing assembly, including: a housing 1, one side of which is open, a sliding plate 2 slidably connected to the bottom inner wall of the housing 1, a sealing plate 3 fixedly connected to the side of the sliding plate 2 away from the housing 1, and a sealing gasket adhered to the open side of the housing 1 to cooperate with the sealing plate 3. After the sealing plate 3 and the sliding plate 2 are attached, a sealed space is formed in the housing 1, and a negative pressure is formed inside it after depressurization, reducing the air in the packaging bag and avoiding the problem of the packaging bag expanding due to heat changes after heat pressing;

[0031] A vacuuming mechanism is located at the bottom of housing 1 to reduce the pressure inside housing 1;

[0032] A heat sealing mechanism is installed between the housing 1 and the slide plate 2 for heat sealing the packaging bag.

[0033] The vacuuming mechanism includes a vacuum pump 20 and a gas storage tank 19 fixed to the bottom of the housing 1. The suction end of the vacuum pump 20 is fixedly connected to the gas storage tank 19 through a pipe. A suction pipe 21 is fixedly connected between one side of the gas storage tank 19 and one side of the housing 1. It also includes an exhaust pipe 18 fixedly connected to one side of the housing 1. Solenoid valves are installed on the exhaust pipe 18, the suction pipe 21 and the suction end of the vacuum pump 20. A control panel (with an internal controller) is installed on the top of the housing 1 to control the vacuum pump 20 and the solenoid valves. When the vacuum pump 20 is started, it draws air from the gas storage tank 19. After the solenoid valve on the suction pipe 21 is opened, it draws air from the housing 1, creating a negative pressure inside and reducing the air in the packaging bag.

[0034] Example 2

[0035] Improvements based on Example 1: See Appendix Figures 1-4 .

[0036] In this utility model, the heat sealing mechanism includes a lower heating plate 9 and a cylinder 15. The lower heating plate 9 is fixed on the surface of the slide plate 2, and the cylinder 15 is fixed on the top inner wall of the housing 1. One end of the piston rod of the cylinder 15 is fixedly connected to the upper heating plate 16. When the cylinder 15 is started, the cylinder 15 drives the upper heating plate 16 to descend, thereby cooperating with the lower heating plate 9 to complete the sealing of the packaging bag.

[0037] In particular, the bottom of the skateboard 2 is fixedly connected to two L-shaped support frames 4, and the surfaces of the support frames 4 are fixedly connected to vertically arranged limiting plates 10. The bottom of the shell 1 is fixedly connected to two horizontal plates 17, and the two limiting plates 10 are located between the two horizontal plates 17. The limiting plates 10 can move between the two horizontal plates 17 to prevent the skateboard 2 from being pulled out.

[0038] This utility model also proposes an aluminum-plastic packaging bag processing device, including a heat sealing assembly and two guide boxes 5. Both guide boxes 5 are fixed on the surface of the slide plate 2. Each of the two guide boxes 5 has a continuously bent (as shown in the attached figure) positioning frame 6 slidably connected inside for pressing the end of the packaging bag. Each positioning frame 6 is fitted with a spring 13 around its circumference. The two ends of the spring 13 are connected to the slide plate 2 and the guide box 5 through spring seats. A connecting rod 11 is fixedly connected between the two positioning frames 6. The end of the packaging bag to be heat sealed is placed flat on the lower heating plate 9. The positioning frame 6 is released, and the spring 13 is used to press the end of the packaging bag with the positioning frame 6, which facilitates heat sealing.

[0039] In this utility model, an L-shaped hand lever 12 is rotatably connected to the top of the connecting rod 11, and a positioning plate 14 is fixedly connected to one side of the sealing plate 3 to cooperate with the hand lever 12. Rotating the hand lever 12 will hang the hand lever 12 on the positioning plate 14, thereby keeping the positioning frame 6 from falling down, which is convenient for placing packaging bags.

[0040] In particular, an L-shaped sliding frame 7 is slidably connected to one side of the positioning frame 6, and a through-hole set screw 8 is threaded to the top of the sliding frame 7. The position of the sliding frame 7 can be adjusted, which can heat seal packaging bags of different widths and improve the flexibility of use.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat-sealing assembly, characterized in that, include: The shell (1) has an open side. A sliding plate (2) is slidably connected to the bottom inner wall of the shell (1). A sealing plate (3) is fixedly connected to the side of the sliding plate (2) away from the shell (1). A sealing gasket is glued to the open side of the shell (1) to cooperate with the sealing plate (3). A vacuuming mechanism is provided at the bottom of the housing (1) to reduce the pressure inside the housing (1); A heat sealing mechanism is disposed between the housing (1) and the slide plate (2) for heat sealing the packaging bag.

2. The heat-sealing assembly as described in claim 1, characterized in that, The vacuum mechanism includes a vacuum pump (20) and a gas storage tank (19) fixed at the bottom of the housing (1). The suction end of the vacuum pump (20) is fixedly connected to the gas storage tank (19) through a pipe. A suction pipe (21) is fixedly connected between one side of the gas storage tank (19) and one side of the housing (1). It also includes an exhaust pipe (18) fixedly connected to one side of the housing (1). Solenoid valves are installed on the exhaust pipe (18), the suction pipe (21), and the suction end of the vacuum pump (20).

3. A heat-sealing assembly as described in claim 2, characterized in that, The heat sealing mechanism includes a lower heating plate (9) and a cylinder (15). The lower heating plate (9) is fixed on the surface of the slide plate (2), and the cylinder (15) is fixed on the top inner wall of the housing (1). One end of the piston rod of the cylinder (15) is fixedly connected to the upper heating plate (16).

4. A heat-sealing assembly as described in claim 3, characterized in that, The bottom of the skateboard (2) is fixedly connected to two L-shaped support frames (4), and the surfaces of the support frames (4) are fixedly connected to vertically arranged limiting plates (10). The bottom of the shell (1) is fixedly connected to two horizontal plates (17), and the two limiting plates (10) are located between the two horizontal plates (17).

5. An aluminum-plastic packaging bag processing device, comprising a heat-sealing assembly as described in any one of claims 1-4, characterized in that, It also includes two guide boxes (5), both of which are fixed on the surface of the slide plate (2). Both guide boxes (5) are slidably connected with continuously bent positioning frames (6) for pressing the packaging bag. The circumference of each positioning frame (6) is fitted with a spring (13). The two ends of the spring (13) are connected to the slide plate (2) and the guide box (5) through spring seats. A connecting rod (11) is fixedly connected between the two positioning frames (6).

6. The aluminum-plastic packaging bag processing apparatus as described in claim 5, characterized in that, The top of the connecting rod (11) is rotatably connected to an L-shaped hand lever (12), and a positioning plate (14) is fixedly connected to one side of the sealing plate (3) to cooperate with the hand lever (12).

7. The aluminum-plastic packaging bag processing device as described in claim 5, characterized in that, One side of the positioning frame (6) is slidably connected to an L-shaped sliding frame (7), and the top of the sliding frame (7) is threaded with a through set screw (8).

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