Air column bag sealing device

Abstract

The utility model relates to the technical field of sealing equipment, in particular to an air column bag sealing device, which comprises a mounting frame serving as a main body supporting structure for sealing an air column bag. The air suction fixing mechanism is mounted on the surface of the bottom of the mounting frame and adsorbs the air column bag through negative pressure; the pressing and fixing mechanism is arranged on the mounting frame and used for assisting in fixing the air column bag, and the pressing and fixing mechanism is located above the air suction fixing mechanism; the lower sealing mechanism is fixed to the side, close to the air suction fixing mechanism, of the bottom surface of the mounting frame; the flat air column bag is flatly attached to the surface of the air suction plate, compared with mechanical clamping of a traditional electric clamp, damage or deformation of a thin film caused by too large clamping force is avoided, flexible pressure is provided through a soft cushion, and the air column bag sealing device is simple in structure, convenient to operate and high in practicability. The auxiliary air suction fixing mechanism further stabilizes the edge of the air column bag, and warping or deviation in the adsorption process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of sealing equipment technology, and in particular to an air column bag sealing device. Background Technology

[0002] Air column bags are a new type of cushioning packaging material that plays an important role in logistics and transportation. They are mainly composed of 99% air and 1% film, and achieve the protection of goods through a special structural design.

[0003] Air column bags are sealed before inflation. Therefore, the air column bags are flat before the sealing process. When the flat air column bags are clamped by electric clamps, they are easy to loosen, which will affect the subsequent sealing process. In addition, the electric clamps apply relatively large forces to ensure stable clamping, which can easily damage the air column bags, resulting in the air column bags becoming unusable due to air leakage when they are subsequently inflated.

[0004] To address these issues, those skilled in the art have proposed an air column bag sealing device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problem that the air column bag is easily loosened when clamped in the above or existing technology, which affects the sealing work, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an air column bag sealing device.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an air column bag sealing device, including a mounting frame, which serves as the main support structure for sealing the air column bag;

[0009] An air suction fixing mechanism is installed on the bottom surface of the mounting frame, which uses negative pressure to adsorb the air column bag;

[0010] A pressing and fixing mechanism is provided on the mounting frame to assist in fixing the air column bag. The pressing and fixing mechanism is located above the air suction fixing mechanism.

[0011] A lower sealing mechanism is fixed to the bottom surface of the mounting bracket near the air suction fixing mechanism; and,

[0012] The upper sealing mechanism is movably connected to the top of the mounting bracket and can move downwards to cooperate with the lower sealing mechanism to complete the heat sealing.

[0013] As a preferred embodiment of the air column bag sealing device of this utility model, the air suction fixing mechanism includes a pump body and an air suction plate. The suction end of the pump body is installed on the outer wall of the air suction plate, and an electromagnetic valve is provided on the suction end of the pump body. The air suction plate is horizontally arranged on the surface of the bottom of the mounting frame.

[0014] As a preferred embodiment of the air column bag sealing device of this utility model, the surface of the air suction plate is provided with a plurality of air holes arranged in an array, a metal air nozzle is provided on the inner wall of the air hole, an air pipe is provided at the bottom of the metal air nozzle, and one end of the air pipe is connected to the air suction end of the pump body.

[0015] As a preferred embodiment of the air column bag sealing device of this utility model, the pressing and fixing mechanism includes an electric cylinder, which is fixed on the top inner wall of the mounting frame. A connecting frame is installed at the bottom end of the extension rod of the electric cylinder. Pressure plates are fixedly installed on both sides of the bottom outer wall of the connecting frame. A soft pad is adhered to the bottom of the pressure plate. The two pressure plates are located on the surface of the air suction plate near both ends.

[0016] As a preferred embodiment of the air column bag sealing device of this utility model, the lower sealing mechanism includes a base, the base is fixed to the bottom surface of the mounting frame near the front end of the air suction plate, a lower clamp is installed on the surface of the base, a slot is opened on the surface of the lower clamp, a heating component is arranged inside the slot, and baffles are vertically fixed on the front and rear sides of the lower clamp near the slot.

[0017] As a preferred embodiment of the air column bag sealing device of this utility model, the heating component includes a heat-conducting plate and a plurality of electric heating rods. The electric heating rods are horizontally installed inside the slot. The heat-conducting plate is fixedly installed on the inner wall of the slot above the electric heating rods. The heat-conducting plate is flush with the surface of the lower clamp.

[0018] In a preferred embodiment of the air column bag sealing device of this utility model, the upper sealing mechanism is located directly above the lower sealing mechanism. The upper sealing mechanism includes a hydraulic cylinder, which is fixed on the top inner wall of the mounting frame. An upper clamp is horizontally installed at the bottom end of the hydraulic cylinder extension rod. A card seat is provided at the bottom of the upper clamp, and the card seat is adapted to the size and specifications of the card slot. An installation groove is provided at the bottom of the card seat, and a heating component 2 is provided inside the installation groove.

[0019] As a preferred embodiment of the air column bag sealing device of this utility model, the heating component two includes a heat-conducting plate two and a plurality of electric heating rods two. The electric heating rods two are horizontally installed inside the mounting groove. The heat-conducting plate two is fixedly installed on the inner wall of the mounting groove near the lower part of the electric heating rods two. The heat-conducting plate two is flush with the bottom of the upper clamp.

[0020] The beneficial effects of this utility model's air column bag sealing device:

[0021] The pump body of the air suction fixing mechanism controls the negative pressure airflow through the solenoid valve. The airflow is generated through the air holes of the air suction plate and the metal suction nozzle to generate a uniform suction force, which flattens the air column bag and makes it fit flat against the surface of the air suction plate. Compared with the mechanical clamping of traditional electric clamps, it avoids the film damage or deformation caused by excessive clamping force. It is especially suitable for thin and sensitive air column bags (such as PE and PA composite films) to ensure no air leakage risk during subsequent inflation. The electric cylinder of the pressing fixing mechanism drives the pressure plate to press down, and the soft pad provides flexible pressure to help the air suction fixing mechanism further stabilize the edge of the air column bag and prevent warping or displacement during the suction process. It is especially suitable for positioning large-sized air column bags.

[0022] The dual-sided heating of the lower and upper sealing mechanisms melts the two layers of film on the air column bag simultaneously. Combined with the downward pressure of the hydraulic cylinder, this achieves full diffusion and entanglement of the polymer chain segments, forming a high-strength sealing edge. The heat sealing strength is greatly improved compared to the traditional single-sided heating effect, effectively preventing the seal from cracking during transportation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of the air column bag sealing device.

[0025] Figure 2 for Figure 1 Another structural diagram from another angle.

[0026] Figure 3 This is an exploded view of the upper and lower sealing mechanisms of the air column bag sealing device.

[0027] Figure 4 This is a schematic diagram of the air suction fixing mechanism of the air column bag sealing device.

[0028] In the diagram: 100, mounting bracket; 200, pressing and fixing mechanism; 201, electric cylinder; 202, connecting bracket; 203, pressure plate; 204, soft pad; 300, air suction fixing mechanism; 301, pump body; 302, solenoid valve; 303, air suction plate; 304, air hole; 305, metal suction nozzle; 400, lower sealing mechanism; 401, base; 402, lower clamp; 403, slot; 404, baffle; 405, electric heating rod one; 406, heat-conducting plate one; 500, upper sealing mechanism; 501, hydraulic cylinder; 502, upper clamp; 503, slot; 504, electric heating rod two; 505, heat-conducting plate two. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0032] Reference Figure 1 , Figure 2 and Figure 4 This is the first embodiment of the present utility model. This embodiment provides an air column bag sealing device, which can avoid damage or deformation of the air column bag and form a high-strength sealing edge. It includes a mounting frame 100, which serves as the main support structure for sealing the air column bag.

[0033] The air suction fixing mechanism 300 is installed on the bottom surface of the mounting frame 100 and uses negative pressure to adsorb the air column bag.

[0034] The pressing and fixing mechanism 200 is mounted on the mounting bracket 100 and is used to assist in fixing the air column bag. The pressing and fixing mechanism 200 is located above the air suction fixing mechanism 300.

[0035] The lower sealing mechanism 400 is fixed to the bottom surface of the mounting bracket 100 near the air suction fixing mechanism 300; and,

[0036] The upper sealing mechanism 500 is movably connected to the top of the mounting bracket 100 and can move downwards to cooperate with the lower sealing mechanism 400 to complete heat sealing.

[0037] Specifically, the air suction fixing mechanism 300 includes a pump body 301 and an air suction plate 303. The suction end of the pump body 301 is installed on the outer wall of the air suction plate 303. A solenoid valve 302 is provided on the suction end of the pump body 301. The air suction plate 303 is horizontally arranged on the surface of the bottom of the mounting bracket 100.

[0038] Furthermore, the surface of the air suction plate 303 is arrayed with multiple air holes 304, and a metal air nozzle 305 is provided on the inner wall of the air hole 304. An air pipe is provided at the bottom of the metal air nozzle 305, and one end of the air pipe is connected to the suction end of the pump body 301.

[0039] The pressing and fixing mechanism 200 includes an electric cylinder 201, which is fixed on the top inner wall of the mounting bracket 100. A connecting bracket 202 is installed at the bottom end of the extension rod of the electric cylinder 201. Pressure plates 203 are fixedly installed on both sides of the bottom outer wall of the connecting bracket 202. A soft pad 204 is adhered to the bottom of the pressure plate 203. The two pressure plates 203 are located on the surface of the air suction plate 303 near both ends.

[0040] During use, the operator lays the flat air column bag flat on the surface of the air suction plate 303, ensuring that the sealing area is aligned with the upper sealing mechanism 400. The electric cylinder 201 drives the connecting frame 202 to descend, causing the pressure plate 203 to gently press the two ends of the air column bag through the soft pad 204. The elastic cushioning of the soft pad 204 prevents damage to the film and also helps to fix the edge of the air column bag to prevent warping during adsorption. The pump body 301 is turned on, and the airflow is controlled by the solenoid valve 302. Negative pressure is generated through the metal suction nozzle 305 and the air hole 304. Under the action of adsorption force, the air column bag flattens and adheres to the air suction plate 303. The metal suction nozzle 305 enhances the local adsorption force and prevents the film from clogging the air hole. After the air column bag is fixed, the upper sealing mechanism 500 can be started. Its downward movement cooperates with the lower sealing mechanism 400 to seal one side of the air column bag. Example

[0041] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the lower sealing mechanism 400 includes a base 401. The base 401 is fixed to the bottom surface of the mounting bracket 100 near the front end of the air suction plate 303. A lower clamp 402 is installed on the surface of the base 401. A slot 403 is opened on the surface of the lower clamp 402. A heating component is provided inside the slot 403. Baffles 404 are vertically fixed on both the front and rear sides of the lower clamp 402 near the slot 403.

[0042] Specifically, the heating assembly includes a heat-conducting plate 406 and multiple electric heating rods 405. The electric heating rods 405 are horizontally installed inside the slot 403. The heat-conducting plate 406 is fixedly installed on the inner wall of the slot 403 above the electric heating rods 405. The heat-conducting plate 406 is flush with the surface of the lower clamp 402.

[0043] Furthermore, the upper sealing mechanism 500 is located directly above the lower sealing mechanism 400. The upper sealing mechanism 500 includes a hydraulic cylinder 501, which is fixed to the top inner wall of the mounting bracket 100. An upper clamp 502 is horizontally mounted at the bottom end of the extension rod of the hydraulic cylinder 501. A card seat 503 is provided at the bottom of the upper clamp 502. The size and specifications of the card seat 503 are compatible with the card slot 403. An installation groove is provided at the bottom of the card seat 503, and a heating component 2 is provided inside the installation groove.

[0044] The second heating component includes a second heat-conducting plate 505 and multiple second electric heating rods 504. The second electric heating rods 504 are horizontally installed inside the mounting groove. The second heat-conducting plate 505 is fixedly installed on the inner wall of the mounting groove near the lower part of the second electric heating rods 504. The second heat-conducting plate 505 is flush with the bottom of the upper clamp 502.

[0045] During use, the electric heating rod 405 is preheated to a certain temperature to facilitate subsequent heating and sealing of the air column bag. Heat is evenly conducted to the surface of the slot 403 through the heat-conducting plate 406. The sealing area of ​​the air column bag is located on the surface of the slot 403. The hydraulic cylinder 501 drives the upper clamp 502 to descend vertically, and the clamp 503 is embedded in the slot 403 of the lower clamp 402 to form a clamping of the sealing area of ​​the air column bag.

[0046] At this point, the air column bag is clamped between heat-conducting plate 406 and heat-conducting plate 505. The electric heating rod 504 is activated simultaneously, heating from above through heat-conducting plate 505, forming a double-sided heat source with the heat-conducting plate 406 below. The film of the air column bag melts under the set temperature (e.g., 120-150℃) and pressure (provided by the hydraulic cylinder, usually 0.2-0.5MPa). The polymer chain segments diffuse and entangle with each other to form a sealing layer. The pressure is maintained for 1-3 seconds (adjusted according to the film thickness) to ensure sufficient fusion. Then, the hydraulic cylinder 501 rises, releasing the air column bag, which cools and solidifies naturally, thus completing the sealing of the air column bag.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealing device for an air column bag, characterized in that: include, Mounting bracket (100) serves as the main support structure for sealing the air column bag; An air suction fixing mechanism (300) is installed on the bottom surface of the mounting frame (100) and uses negative pressure to adsorb the air column bag; The pressing and fixing mechanism (200) is disposed on the mounting frame (100) and is used to assist in fixing the air column bag. The pressing and fixing mechanism (200) is located above the air suction fixing mechanism (300). The lower sealing mechanism (400) is fixed to the bottom surface of the mounting bracket (100) on the side near the air suction fixing mechanism (300); and, The upper sealing mechanism (500) is movably connected to the top of the mounting bracket (100) and can move downward to cooperate with the lower sealing mechanism (400) to complete heat sealing.

2. The air column bag sealing device as described in claim 1, characterized in that: The air suction fixing mechanism (300) includes a pump body (301) and an air suction plate (303). The suction end of the pump body (301) is installed on the outer wall of the air suction plate (303). A solenoid valve (302) is provided on the suction end of the pump body (301). The air suction plate (303) is horizontally arranged on the surface of the bottom of the mounting bracket (100).

3. The air column bag sealing device as described in claim 2, characterized in that: The surface of the air suction plate (303) is arrayed with multiple air holes (304), and a metal nozzle (305) is provided on the inner wall of the air hole (304). An air pipe is provided at the bottom of the metal nozzle (305), and one end of the air pipe is connected to the suction end of the pump body (301).

4. The air column bag sealing device as described in claim 3, characterized in that: The pressing and fixing mechanism (200) includes an electric cylinder (201), which is fixed on the top inner wall of the mounting bracket (100). A connecting bracket (202) is installed at the bottom end of the extension rod of the electric cylinder (201). Pressure plates (203) are fixedly installed on both sides of the bottom outer wall of the connecting bracket (202). A soft pad (204) is glued to the bottom of the pressure plate (203). The two pressure plates (203) are located on the surface of the air suction plate (303) near both ends.

5. The air column bag sealing device as described in claim 4, characterized in that: The lower sealing mechanism (400) includes a base (401), which is fixed to the bottom surface of the mounting bracket (100) near the front end of the air suction plate (303). A lower clamp (402) is installed on the surface of the base (401), and a slot (403) is opened on the surface of the lower clamp (402). A heating component is provided inside the slot (403). Baffles (404) are vertically fixed on the front and rear sides of the lower clamp (402) near the slot (403).

6. The air column bag sealing device as described in claim 5, characterized in that: The heating assembly includes a heat-conducting plate (406) and a plurality of electric heating rods (405). The electric heating rods (405) are horizontally installed inside the slot (403). The heat-conducting plate (406) is fixedly installed on the inner wall of the slot (403) above the electric heating rods (405). The heat-conducting plate (406) is flush with the surface of the lower clamp (402).

7. The air column bag sealing device as described in claim 6, characterized in that: The upper sealing mechanism (500) is located directly above the lower sealing mechanism (400). The upper sealing mechanism (500) includes a hydraulic cylinder (501). The hydraulic cylinder (501) is fixed on the top inner wall of the mounting bracket (100). An upper clamp (502) is horizontally installed at the bottom end of the extension rod of the hydraulic cylinder (501). A card seat (503) is provided at the bottom of the upper clamp (502). The card seat (503) is adapted to the size and specifications of the card slot (403). An installation groove is provided at the bottom of the card seat (503). A heating component II is provided inside the installation groove.

8. The air column bag sealing device as described in claim 7, characterized in that: The second heating component includes a second heat-conducting plate (505) and a plurality of second electric heating rods (504). The second electric heating rods (504) are horizontally installed inside the mounting groove. The second heat-conducting plate (505) is fixedly installed on the inner wall of the mounting groove near the lower part of the second electric heating rods (504). The second heat-conducting plate (505) is flush with the bottom of the upper clamp (502).

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