Sealing device for packaging bag

By incorporating an adjustable baffle and suction cup air tube design into the sealing device, the problem of uneven sealing of packaging bags is solved, improving the sealing effect and the stability of the device, and facilitating the sealing operation of packaging bags.

CN224117672UActive Publication Date: 2026-04-14GUANGXI XINHAO PACKAGING PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI XINHAO PACKAGING PRODUCTS CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing packaging bag sealing devices have difficulty accurately leveling the sealing position when dealing with packaging bags of different sizes, resulting in tilted seals and affecting the sealing effect.

Method used

Two sets of adjustable baffles are installed on the side of the heat sealing component of the sealing device. The heat sealing area is divided by adjusting the baffle spacing. Combined with the design of suction cups and air tubes, the device is placed stably and moved easily. At the same time, flexible elastic bands are used to organize the connecting lines.

Benefits of technology

It achieves automatic adjustment of the heat-sealing area according to the size of the packaging bag, ensuring a flat seal and improving the sealing effect. The design of suction cups and air tubes enhances the stability and portability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging bags, in particular to a sealing device for packaging bags, which comprises a support base, a sealing machine body and a regulation and control box, the sealing machine body is fixedly mounted at the top end of the support base, and the regulation and control box is fixedly mounted on the outer wall of the side edge of the sealing machine body at the position of a shell. According to the sealing device for the packaging bag, the two sets of baffles with the adjustable distance are arranged on the side edge of the heat sealing assembly of the device through the mechanism assembly, and the two sets of baffles can be correspondingly adjusted to the proper distance according to the width distance of the packaging bag in the actual equipment operation process; in this way, the area division effect on the heat sealing assembly in the device is achieved in a baffle physical isolation mode, the positions of the two sets of baffles can serve as horizontal reference points in the actual packaging bag sealing process, and then the phenomenon that the packaging bag is difficult to level due to the too large heat sealing area is not likely to happen; and the final sealing effect of the packaging bag is further ensured on the basis of ensuring the pushing level of the packaging bag.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and in particular to a sealing device for packaging bags. Background Technology

[0002] Packaging bags are flexible containers made of plastic, paper, aluminum foil, or composite materials, used for storing, transporting, and protecting goods. A packaging bag sealing device is a device that seals the opening of the packaging bag by means of heating or pressurization, so that the contents stored inside will not fall out.

[0003] The heat sealing components of existing packaging bag sealing devices are generally designed in a fixed position. However, the size of packaging bags varies depending on the model. Using a fixed heat sealing area to seal the packaging bag makes it difficult to level the sealing position of the packaging bag, which can easily lead to the seal being tilted, resulting in a less than ideal overall practical effect.

[0004] Therefore, to address the problem that the sealing device for the aforementioned packaging bags is not easy to level the sealing position of the packaging bag, this utility model sets two sets of adjustable baffles on the side of the heat sealing component of the device through a mechanism component. In actual operation of the equipment, the two sets of baffles can be adjusted to a suitable distance according to the width of the packaging bag. In this way, the heat sealing component inside the device is divided into areas through physical isolation by the baffles. When sealing the actual packaging bag, the positions of the two sets of baffles can be used as horizontal reference points, thus preventing the phenomenon that the packaging bag is difficult to level due to the heat sealing area being too large. Utility Model Content

[0005] To overcome the problem that common packaging bag sealing devices are not easy to level the sealing position of the packaging bag.

[0006] The technical solution of this utility model is: a sealing device for packaging bags, including a support base, a sealing machine body and a control box. The sealing machine body is fixedly installed on the top of the support base, and the control box is fixedly installed on the outer side wall of the sealing machine body located in the shell position.

[0007] The control box is equipped with a spacing adjustment component, the support base is equipped with a fastening and positioning component below it, and the support base is equipped with a wire straightening component above it.

[0008] Preferably, the spacing adjustment assembly includes a button block, a reciprocating lead screw, a limiting strip, and an auxiliary support base. The button block is rotatably mounted on the outer side wall of the control box. The button block is connected to one end of the reciprocating lead screw, and the other end of the reciprocating lead screw is rotatably mounted to the inner side wall of the control box. The limiting strip is installed parallel to the side of the reciprocating lead screw, and both ends of the limiting strip are connected to the inner side walls of the control box. The auxiliary support base is symmetrically installed through the reciprocating lead screw and the limiting strip.

[0009] Preferably, the auxiliary support is slidably installed on the inner side wall of the control box, the protruding end of the auxiliary support is located on the outside of the control box, and a baffle is fixedly installed on the top outer wall of the auxiliary support at the protruding end.

[0010] Preferably, the baffle is composed of a lower positioning part and an upper enclosure part. The positioning part of the baffle is slidably installed on the outside of the control box, and the enclosure part of the baffle is located on the horizontal side of the heat sealing component inside the sealing machine body, and the enclosure part is set in an inclined shape.

[0011] Preferably, the fastening and positioning assembly includes a suction cup and an air tube. Two sets of suction cups are symmetrically fixedly installed on the bottom outer wall of the support base. The suction cup is composed of an upper fixing part and a lower adsorption part. An air tube is fixedly installed on the side of the suction cup located at the fixing part position. The air tube communicates with the internal space of the suction cup.

[0012] Preferably, the outer wall of the annular side of the air tube away from the suction cup is provided with a mating mounting groove, and a nut is installed on the external thread of the mating thread groove.

[0013] Preferably, the wire straightening assembly includes a limiting support seat and a flexible elastic band. The limiting support seats are symmetrically fixedly installed on the top outer wall of the support base, and the flexible elastic bands are connected and installed on the inner side walls of the two sets of limiting support seats near the lower half.

[0014] The beneficial effects of this utility model are:

[0015] 1. When using this sealing device for packaging bags, two sets of adjustable baffles are set on the side of the heat sealing component through a mechanism. During actual operation, the two sets of baffles can be adjusted to a suitable distance according to the width of the packaging bag. In this way, the heat sealing component inside the device is divided into areas through physical isolation of the baffles. When sealing the packaging bag, the positions of the two sets of baffles can be used as horizontal reference points, so that the packaging bag is less likely to be difficult to level due to the heat sealing area being too large. This further ensures the final sealing effect of the packaging bag while ensuring the horizontal advancement of the packaging bag.

[0016] 2. When using this sealing device for packaging bags, four sets of suction cups are set at the bottom of the device. When the device is placed, the suction cups can quickly and stably position the entire device through adsorption. Furthermore, air pipes are set on the side of the suction cups, and the on / off state of the air pipes is controlled by the mechanism components. When positioning the device, the air pipes serve as the gas discharge path, which accelerates the gas discharge rate in the suction cups. When removing the device, the air pipes serve as the air inlet, which facilitates the movement and placement of the entire device. The overall structural design is flexible and has good practical effect. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural diagram of the baffle installation of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural diagram of the support base and suction cup installation of this utility model.

[0020] Figure 4 This utility model is shown. Figure 3 Enlarged 3D structural diagram at point A;

[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the limiting support base and flexible elastic band of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Sealing machine body; 3. Control box; 4. Spacing adjustment assembly; 401. Button; 402. Reciprocating screw; 403. Limiting strip; 404. Auxiliary support seat; 405. Baffle; 5. Tightening and positioning assembly; 501. Suction cup; 502. Air pipe; 503. Nut; 6. Wire bundling assembly; 601. Limiting support seat; 602. Flexible elastic band. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a sealing device for packaging bags, including a support base 1, a sealing machine body 2 and a control box 3. The sealing machine body 2 is fixedly installed on the top of the support base 1, and the control box 3 is fixedly installed on the outer side wall of the sealing machine body 2 located in the shell position.

[0025] The control box 3 is equipped with a spacing adjustment component 4, a fastening and positioning component 5 is installed below the support base 1, and a wire straightening component 6 is installed above the support base 1.

[0026] The spacing adjustment assembly 4 includes a button block 401, a reciprocating screw 402, a limiting strip 403, and an auxiliary support base 404. The button block 401 is rotatably mounted on the outer side wall of the control box 3. The button block 401 is connected to one end of the reciprocating screw 402, and the other end of the reciprocating screw 402 is rotatably mounted on the inner side wall of the control box 3. The limiting strip 403 is installed parallel to the side of the reciprocating screw 402, and both ends of the limiting strip 403 are connected to the inner side walls of the control box 3. The reciprocating screw 402 and the limiting strip 403 are symmetrically connected externally. An auxiliary support base 404 is installed, which is slidably installed on the inner side wall of the control box 3. The protruding end of the auxiliary support base 404 is located on the outside of the control box 3, and a baffle 405 is fixedly installed on the top outer wall of the auxiliary support base 404 at the protruding end. The baffle 405 is composed of a lower positioning part and an upper enclosure part. The positioning part of the baffle 405 is slidably installed on the outside of the control box 3, and the enclosure part of the baffle 405 is located on the horizontal side of the heat sealing component inside the sealing machine body 2, and the enclosure part is set to be inclined.

[0027] The two sets of baffles 405 here physically isolate the area so that the whole device can adjust the heat sealing area according to the size of the packaging bag to be sealed. On the basis of limiting the heat sealing area, it plays an auxiliary role in limiting and leveling the packaging bag. By setting the enclosure part of the baffle 405 to be inclined, it can be as close as possible to the heat sealing component of the sealing machine body 2, ensuring the area leveling effect.

[0028] The fastening and positioning assembly 5 includes a suction cup 501 and an air tube 502. Two sets of suction cups 501 are symmetrically fixedly installed on the bottom outer wall of the support base 1. The suction cup 501 is composed of an upper fixing part and a lower suction part. An air tube 502 is fixedly installed on the side of the suction cup 501 located at the fixing part. The air tube 502 communicates with the internal space of the suction cup 501. A docking groove is opened on the annular side outer wall of the air tube 502 away from the suction cup 501. A nut 503 is installed on the external thread of the docking groove.

[0029] The suction cup 501 is designed to securely place the device in the designated position so that it is less likely to shift during the subsequent heat sealing process. The air tube 502 is designed to control the on / off state of the area inside the suction cup 501, making it easy to pick up and put down.

[0030] The wire harness straightening assembly 6 includes a limiting support seat 601 and a flexible elastic band 602. The limiting support seat 601 is symmetrically fixedly installed on the top outer wall of the support base 1, and the flexible elastic band 602 is connected and installed on the inner side wall of the two sets of limiting support seats 601 near the lower half.

[0031] The flexible elastic band 602 here is used to bundle and organize the connecting lines on the side of the sealing machine body 2.

[0032] Working principle: See Figures 3-4 As shown, when the device needs to be positioned in a designated location, first unscrew the nut 503 from the outside of the air tube 502. Then, press the entire device, along with the four suction cups 501, onto the designated placement surface. This allows excess gas in the suction cups 501 to be expelled through the air tube 502, ensuring the suction stability of the suction cups 501. After the device is securely placed, screw the nut 503 back onto the outside of the air tube 502 to restore its closed state. When removing the device, the principle is the same. First, unscrew the nut 503 from the outside of the air tube 502 to convert the closed space inside the suction cups 501 into an open space. Then, the entire device can be lifted upwards.

[0033] See Figures 1-2 As shown, when it is necessary to physically enclose the heat-sealing operation area of ​​the device according to the width of the packaging bag, simply rotate the button 401. The rotation of the button 401 will automatically drive the reciprocating screw 402 to rotate, which in turn drives the auxiliary support seat 404 to move. Due to the setting of the limit strip 403, when the reciprocating screw 402 rotates, it will only drive the two sets of auxiliary support seats 404 to move in opposite directions in the horizontal direction. The opposite movement of the two sets of auxiliary support seats 404 will synchronously drive the two sets of baffles 405 to move in opposite directions. When the two sets of baffles 405 move to the appropriate support distance, the rotation of the button 401 can be stopped. It should be noted that the reciprocating screw 402 has a self-locking function, so the two sets of baffles 405 will not move without manual intervention.

[0034] See Figure 5 As shown, when it is necessary to straighten the power supply harness on the side of the sealing machine body 2, the power supply harness should first be wound up and straightened accordingly. Then, the flexible elastic band 602 should be pulled upward to place the power supply harness below the flexible elastic band 602. After adjusting it to a suitable position, the flexible elastic band 602 should be released. Then, the power supply harness can be stably positioned on the side of the device by the elastic deformation and resistance of the flexible elastic band 602.

[0035] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing device for packaging bags, comprising a support base (1), a sealing machine body (2), and a control box (3), characterized in that: The sealing machine body (2) is fixedly installed on the top of the support base (1), and the control box (3) is fixedly installed on the outer side wall of the sealing machine body (2) located in the shell position; The control box (3) is equipped with a spacing adjustment component (4), a fastening positioning component (5) is provided below the support base (1), and a wire straightening component (6) is provided above the support base (1).

2. A sealing device for packaging bags according to claim 1, characterized in that: The spacing adjustment assembly (4) includes a button block (401), a reciprocating screw (402), a limiting strip (403), and an auxiliary support base (404). The button block (401) is rotatably installed on the outer side wall of the control box (3). The button block (401) is connected to one end of the reciprocating screw (402). The other end of the reciprocating screw (402) is rotatably installed on the inner side wall of the control box (3). The limiting strip (403) is installed parallel to the side of the reciprocating screw (402), and both ends of the limiting strip (403) are connected to the inner side walls of the control box (3) on both sides respectively. The auxiliary support base (404) is symmetrically installed through the outside of the reciprocating screw (402) and the limiting strip (403).

3. A sealing device for packaging bags according to claim 2, characterized in that: The auxiliary support base (404) is slidably installed on the inner side wall of the control box (3). The protruding end of the auxiliary support base (404) is located on the outside of the control box (3), and a baffle (405) is fixedly installed on the top outer wall of the auxiliary support base (404) at the protruding end.

4. A sealing device for packaging bags according to claim 3, characterized in that: The baffle (405) is composed of a lower positioning part and an upper enclosure part. The positioning part of the baffle (405) is slidably installed on the outside of the control box (3). The enclosure part of the baffle (405) is located on the horizontal side of the heat sealing component inside the sealing machine body (2), and the enclosure part is set in an inclined shape.

5. A sealing device for packaging bags according to claim 1, characterized in that: The fastening and positioning assembly (5) includes a suction cup (501) and an air tube (502). Two sets of suction cups (501) are symmetrically fixed on the outer wall of the bottom end of the support base (1). The suction cup (501) is composed of an upper fixing part and a lower suction part. An air tube (502) is fixedly installed on the side of the suction cup (501) located at the fixing part position. The air tube (502) communicates with the internal space of the suction cup (501).

6. A sealing device for packaging bags according to claim 5, characterized in that: The air tube (502) has a mating groove on the outer wall of its annular side away from the suction cup (501), and a nut (503) is installed on the external thread of the mating groove.

7. A sealing device for packaging bags according to claim 1, characterized in that: The wire straightening assembly (6) includes a limiting support seat (601) and a flexible elastic band (602). The limiting support seat (601) is symmetrically fixedly installed on the outer wall of the top of the support base (1). The flexible elastic band (602) is connected and installed on the inner wall of the side near the lower half of the two sets of limiting support seats (601).