Automatic bagging equipment
By using a sealing method that combines a heat-sealing cutter with a blade strip, along with negative pressure adsorption and a cylinder-driven gripper structure, the problem of complex structure and low sealing quality in traditional bagging equipment is solved, achieving efficient and reliable sealing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU GAOXIANG MASCH CO LTD
- Filing Date
- 2026-03-09
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional bagging equipment has a complex structure, low sealing efficiency, and packaging bags made of non-adhesive materials are prone to detachment, resulting in poor sealing quality.
The bag opening is cut and heat-sealed using a heat-sealing cutter and blade strips. Combined with a gripper structure driven by negative pressure adsorption and cylinder, it achieves stable conveying and efficient sealing of packaging bags.
It simplifies the sealing process, improves sealing efficiency, is suitable for packaging bags made of non-adhesive materials, and ensures reliable bag sealing.
Smart Images

Figure CN224131492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to bagging equipment, specifically to an automatic bagging device. Background Technology
[0002] A bagging machine is a device used for automated bagging of materials. Its working principle involves individual bags being conveyed on a bag conveyor belt. The bag opening component then opens the bag's opening, followed by a bag-spreading component that further expands the opening. Next, a filling component feeds material into the opened bag. Finally, the bag conveyor belt carries the bag to a sealing component, which closes the bag. Traditional sealing components typically use adhesive sealing, requiring gluing and folding of the bag opening to complete the seal. This method is complex and inefficient. Furthermore, some non-adhesive materials are prone to detachment after sealing using adhesive methods, resulting in poor sealing quality. Utility Model Content
[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide an automatic bagging device for solving the above-mentioned problems.
[0004] Therefore, this utility model is implemented using the following solution:
[0005] An automatic bagging device includes a bag conveyor belt, an opening component and a sealing component are arranged on the conveying path of the bag conveyor belt, and a bag supporting component and a filling component are arranged corresponding to the opening component. The sealing component includes a heat sealing cutter, which is connected to a first lifting drive component. A blade strip is arranged corresponding to the heat sealing cutter. The heat sealing cutter and the blade strip cooperate to cut and heat seal the bag opening of the packaging bag.
[0006] The bag conveyor belt is provided with adsorption holes, and a negative pressure seat is provided corresponding to the bag conveyor belt. The negative pressure seat is provided with a negative pressure cavity, which is connected to a negative pressure machine. The negative pressure seat is provided with a negative pressure groove that communicates with the negative pressure cavity, and the adsorption holes can be aligned with the negative pressure groove.
[0007] The first lifting drive assembly includes a first cylinder, the piston rod of the first cylinder is connected to the lifting frame, and the heat-sealing cutter is disposed on the lifting frame.
[0008] The lifting frame is also equipped with a first bag-pressing plate, and an elastic element is provided between the first bag-pressing plate and the lifting frame.
[0009] A first gripper and a second gripper are provided on the left and right sides of the heat-sealing cutter. The first gripper is movably mounted on a first movable seat, which is connected to a first moving drive assembly. The second gripper is movably mounted on a second movable seat, which is connected to a second moving drive assembly. The first and second movable seats are movably mounted on a third movable seat, which is connected to a third moving drive assembly.
[0010] On both sides of the bag opening component, there are also gluing components and folding plates. The gluing components are used to apply glue to the outer extension of the bag opening. The folding plates can squeeze and drive the glued outer extension to fold upward. A pusher is provided on one side of the folding plates. The pusher can push the folded outer extension to fold downward and stick it to the outer wall of the bag to seal the bag.
[0011] At the corresponding pusher, a second bag pressing plate is provided above the bag conveyor belt, and the second bag pressing plate is connected to the second lifting drive assembly.
[0012] The above-mentioned automatic bagging equipment, through an innovative design of the sealing structure, can achieve one-time cutting and heat sealing at the bag opening simply by using a heat-sealing cutter and a blade strip. The sealing operation is very simple and can effectively improve the efficiency of the sealing operation. Moreover, this sealing method is particularly suitable for packaging bags made of non-adhesive materials, ensuring that the bag opening remains closed after heat sealing and improving the reliability of the sealing. Attached Figure Description
[0013] The present invention includes the following figures:
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 for Figure 1 A magnified view of the area pointed to by A in the middle;
[0016] Figure 3 This is a structural diagram of the sealing assembly of this utility model. Detailed Implementation
[0017] As shown in the figure, this utility model discloses an automatic bagging device, including a bag conveyor belt 6. A bag opening component 5 and a bag sealing component are arranged on the conveying path of the bag conveyor belt 6. A bag supporting component 7 and a filling component 8 are arranged corresponding to the bag opening component 5. The bag opening component 5, bag supporting component 7, and filling component 8 are common structures on the market and belong to existing technology; therefore, their specific structures will not be described in detail. The packaging bag is unwound by the packaging bag unwinding component 1, then pulled by the traction component 2, and cut into individual pieces by the cutting component 3, which then falls onto the bag conveyor belt 6. The bag sealing component includes a heat-sealing cutter 16, which is connected to a first lifting drive component. A blade strip 15 is provided corresponding to the heat-sealing cutter 16. The heat-sealing cutter 16 and the blade strip 15 cooperate to cut and heat-seal the bag opening.
[0018] Furthermore, the bag conveyor belt 6 is provided with adsorption holes 13, and a negative pressure seat 19 is provided corresponding to the bag conveyor belt 6. The negative pressure seat 19 is provided with a negative pressure chamber, which is connected to a negative pressure machine. The negative pressure seat is provided with a negative pressure groove 20 that communicates with the negative pressure chamber, and the adsorption holes 13 can be aligned with the negative pressure groove 20. With the above structure, by controlling the operation of the negative pressure machine, a negative pressure is generated in the negative pressure chamber and the negative pressure groove 20, which generates an adsorption force at the adsorption holes 13 on the bag conveyor belt 6, adsorbing the packaging bag onto the bag conveyor belt 6 and ensuring the stability of the packaging bag's position during the conveying process.
[0019] Furthermore, the first lifting drive assembly includes a first cylinder 18, the piston rod of which is connected to the lifting frame 17, and the heat-sealing cutter 16 is mounted on the lifting frame 17. By controlling the movement of the first cylinder 18, the lifting frame 17 and the heat-sealing cutter 16 can be lifted and lowered.
[0020] Furthermore, the lifting frame 17 is also equipped with a first bag-pressing plate 14, and an elastic element is provided between the first bag-pressing plate 14 and the lifting frame 17. With the above structure, when the lifting frame 17 descends, the first bag-pressing plate 14 will first squeeze the packaging bag to expel excess air from the packaging bag and squeeze the elastic element. Then, as the lifting frame 17 continues to descend, the heat-sealing cutter 16 and the blade strip 15 cooperate to cut and heat-seal the bag opening.
[0021] Furthermore, a first gripper 21 and a second gripper are provided on one side of the heat-sealing cutter 16. The first and second grippers adopt a pneumatic gripper structure. The first gripper 21 is movably mounted on the first movable seat 22, which is connected to the first moving drive assembly. The second gripper is movably mounted on the second movable seat 26, which is connected to the second moving drive assembly. The first and second movable seats are movably mounted on the third movable seat 23, which is connected to the third moving drive assembly. The first moving drive assembly is a second cylinder 25, whose piston rod is connected to the first movable seat 22. The second moving drive assembly is a third cylinder 27, whose piston rod is connected to the second movable seat 26. The third moving drive assembly is a fourth cylinder 24, whose piston rod is connected to the third movable seat 23. With the above structure, when the packaging bag is delivered to the sealing assembly, the third moving seat 23 can drive the first and second grippers to move closer to the opening of the packaging bag, so that the first and second grippers clamp the opening of the packaging bag. Then, the first and second moving seats are controlled to move away from each other, so that the opening of the packaging bag is opened to a straight state before heat sealing. This makes the packaging bag look more beautiful and the heat sealing quality better after heat sealing.
[0022] Furthermore, an adhesive application component 4 and a folding plate 9 are respectively provided on both sides of the bag opening component. The adhesive application component 4 can be a spray adhesive structure, used to apply adhesive to the outer extension of the bag opening. The adhesive application component 4 is a common double-sided adhesive structure on the market, which is existing technology, so its specific structure will not be described in detail. The folding plate 9 can squeeze and drive the already adhesive outer extension to fold upwards. A pusher 11 is provided on one side of the folding plate 9, which can push the folded outer extension downwards to adhere to the outer wall of the packaging bag, thereby sealing the packaging bag. Corresponding to the pusher 11, a second pressing plate 10 is provided above the bag conveyor belt 6, and the second pressing plate 10 is connected to the second lifting drive component. With the above structure, the equipment can also perform adhesive sealing operations.
[0023] The working principle of this utility model is as follows: After unwinding, traction, and cutting, the packaging bag falls onto the bag conveyor belt 6 in a single state. If a heat-sealing structure is used for sealing, the packaging bag is opened by the bag opening component 5, and then opened by the bag supporting component 7. The material is then fed into the opened packaging bag by the filling component 8. Afterward, the packaging bag is conveyed to the heat-sealing cutter 16 by the bag conveyor belt 6. The third moving seat 23 first drives the first and second grippers to move to the bag opening. The first and second grippers clamp the bag opening. Then, the first and second moving seats are controlled to move away from each other, opening the bag opening to a straight state. Then, the heat-sealing cutter 16 is controlled to descend and cooperate with the blade strip 15 to achieve heat-sealing and cutting of the bag opening, completing the bag sealing operation. Afterward, the third moving seat 23... The first and second grippers reset, sending the cut waste edge of the packaging bag to the waste collection area and releasing it to collect the waste edge. If the bag is sealed by adhesive, when the packaging bag passes through the adhesive application component 4, the adhesive application component 4 applies adhesive to the outer extension of the bag opening. Then the packaging bag passes through the bag opening component 5 to open, and the bag opening component 7 opens the packaging bag. The material is then fed into the opened packaging bag by the material filling component 8. After that, the packaging bag passes through the folding plate 9, which can squeeze and drive the already glued outer extension to fold upward. Then the packaging bag is sent to the pusher 11 by the bag body conveyor belt 6. The second pressing plate 10 descends and squeezes the packaging bag to expel the excess air inside the packaging bag. Then the pusher 11 is controlled to move, pushing the folded outer extension downward and adhering it to the outer wall of the packaging bag to seal the packaging bag.
Claims
1. An automatic bagging device, comprising a bag conveyor belt (6), wherein a bag opening component (5) and a bag sealing component are arranged on the conveying path of the bag conveyor belt (6), and a bag supporting component (7) and a filling component (8) are arranged corresponding to the bag opening component (5), characterized in that: The sealing assembly includes a heat-sealing cutter (16), which is connected to a first lifting drive assembly. A blade strip (15) is provided corresponding to the heat-sealing cutter (16). The heat-sealing cutter (16) and the blade strip (15) cooperate to cut and heat-seal the opening of the packaging bag.
2. An automatic bagging apparatus according to claim 1, wherein: The bag conveyor belt (6) is provided with an adsorption hole (13), and a negative pressure seat (19) is provided corresponding to the bag conveyor belt (6). A negative pressure cavity is provided inside the negative pressure seat (19), and the negative pressure cavity is connected to a negative pressure machine. A negative pressure groove (20) communicating with the negative pressure cavity is provided on the negative pressure seat, and the adsorption hole (13) can be aligned with the negative pressure groove (20).
3. An automatic bagging apparatus according to claim 1, wherein: The first lifting drive assembly includes a first cylinder (18), the piston rod of the first cylinder (18) is connected to the lifting frame (17), and the heat-sealing cutter (16) is disposed on the lifting frame (17).
4. An automatic bagging apparatus according to claim 3, wherein: The lifting frame (17) is also provided with a first bag pressing plate (14), and an elastic element is provided between the first bag pressing plate (14) and the lifting frame (17).
5. An automatic bagging apparatus according to claim 1, wherein: A first gripper (21) and a second gripper are provided on one side of the heat-sealing cutter (16). The first gripper (21) is movably mounted on the first movable seat (22), which is connected to the first moving drive assembly. The second gripper is movably mounted on the second movable seat (26), which is connected to the second moving drive assembly. The first and second movable seats are movably mounted on the third movable seat (23), which is connected to the third moving drive assembly.
6. An automatic bagging apparatus according to claim 1, wherein: On both sides of the bag opening component, there are also glue application components (4) and folding plates (9). The glue application components (4) are used to apply glue to the outer extension of the bag opening of the packaging bag. The folding plates (9) can squeeze and drive the glued outer extension to fold upward. A pusher (11) is provided on one side of the folding plates (9). The pusher (11) can push the folded outer extension to fold downward and stick it to the outer wall of the packaging bag to seal the packaging bag.
7. An automatic bagging apparatus according to claim 6, wherein: At the corresponding pusher (11), a second bag pressing plate (10) is provided above the bag conveyor belt (6), and the second bag pressing plate (10) is connected to the second lifting drive assembly.