Plastic bag sealing device

Abstract

The utility model provides a plastic bag sealing device which comprises a base, a conveying table is arranged above the base, a first fixing mechanism is arranged at the front end of the base, a second fixing mechanism is arranged at the rear end of the base, a supporting frame is arranged on the side of the base, and a plurality of heat sealing mechanisms are arranged at the front end of the supporting frame. A sliding rail is arranged at the rear end of the supporting frame, a linear motor is arranged on the sliding rail in a sliding mode, a cutting mechanism is arranged on the linear motor, efficient and accurate sealing and cutting of plastic bags are ensured through cooperative work of all the mechanisms, the overall efficiency is improved through cooperation of all the modules, the sealing quality is also ensured, and the production efficiency is improved. Therefore, the plastic bag has good sealing performance after being packaged.

Description

Technical Field

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

[0002] A plastic bag sealing machine is a device that uses heat to melt and solidify the opening of a plastic bag. Its working principle involves placing the plastic bag opening between two pressure plates of the machine. One of the pressure plates has a heating wire attached to its surface. Once the plastic bag is in place, the two pressure plates clamp together, and the heating wire is energized, melting the bag opening. After a certain time, the two pressure plates separate, the heating wire is de-energized, and the melted portion of the plastic bag solidifies, ultimately sealing the bag. In the processing of certain plastic bags, it is necessary to cut off the remaining bag edges after sealing. The traditional method involves first sealing the plastic bag with the sealing machine, then removing the bag and using a cutting device to cut off the remaining bag edges. This method not only increases labor intensity but also has low work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a plastic bag sealing device to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a plastic bag sealing device, including a base, a conveyor platform above the base, a first fixing mechanism at the front end of the base, a second fixing mechanism at the rear end of the base, a support frame on the side of the base, a plurality of heat sealing mechanisms at the front end of the support frame, a slide rail at the rear end of the support frame, a linear motor sliding on the slide rail, and a cutting mechanism on the linear motor.

[0005] The first fixing mechanism includes a fixing frame, a first electric telescopic rod, and a suction cup. The fixing frame is arranged on both sides of the base, and a plurality of first electric telescopic rods are evenly arranged on the fixing frame. Each of the first electric telescopic rods has a suction cup at its output end.

[0006] The heat sealing mechanism includes a support rod, a second electric telescopic rod, and a heating block. The support rod is fixedly connected to the support frame. Both ends of the support rod are provided with a second electric telescopic rod, and the output end of the second electric telescopic rod is fixedly connected to the heating block.

[0007] The second fixing mechanism includes a support column and a third electric telescopic rod. The support column is arranged on both sides of the rear end portion of the base. The third electric telescopic rod is fixedly installed on the support column. The output end of the third electric telescopic rod is fixedly connected to a pressure plate.

[0008] The cutting mechanism includes a fourth electric telescopic rod and a cutting machine. The fourth electric telescopic rod is fixedly mounted on the linear motor, and the output end of the fourth electric telescopic rod is fixedly connected to the cutting machine.

[0009] Specifically, the heating block is equipped with a heating wire inside, and a heat sealing block is also fixedly connected to the heating block.

[0010] Specifically, the front end of the support frame is also evenly equipped with multiple cooling fans.

[0011] Specifically, the linear motor is also equipped with a fifth electric telescopic rod, and a vacuum cleaner is fixedly connected to the output end of the fifth electric telescopic rod.

[0012] Specifically, the pressure plate can cover the heat-sealed area.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0014] This utility model provides a plastic bag sealing device. Through the coordinated work of various mechanisms, the device ensures efficient and accurate sealing and cutting of plastic bags. The cooperation of each module not only improves the overall efficiency but also ensures the sealing quality, so that the plastic bag has good sealing performance after sealing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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 preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A structural diagram of a plastic bag sealing device provided by this utility model.

[0017] Figure 2 This is an enlarged schematic diagram of the structure at point A provided by this utility model.

[0018] In the diagram, 1 is the base, 2 is the conveyor, 3 is the support frame, 4 is the slide rail, 5 is the linear motor, 6 is the fixed frame, 7 is the first electric telescopic rod, 8 is the suction cup, 9 is the support rod, 10 is the second electric telescopic rod, 11 is the heating block, 12 is the support column, 13 is the third electric telescopic rod, 14 is the pressure plate, 15 is the fourth electric telescopic rod, 16 is the cutting machine, 17 is the heating wire, 18 is the heat sealing block, 19 is the cooling fan, 20 is the fifth electric telescopic rod, and 21 is the vacuum cleaner. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of the present invention.

[0020] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0021] It should be understood that the invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0023] To fully understand this invention, a detailed structure will be presented in the following description to illustrate the technical solution proposed by this invention. Optional embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0024] In the diagram, 1 is the base, 2 is the conveyor table, 3 is the support frame, 4 is the slide rail, 5 is the linear motor, 6 is the fixing frame, 7 is the first electric telescopic rod, 8 is the suction cup, 9 is the support rod, 10 is the second electric telescopic rod, 11 is the heating block, 12 is the support column, 13 is the third electric telescopic rod, 14 is the pressure plate, 15 is the fourth electric telescopic rod, 16 is the cutting machine, 17 is the heating wire, 18 is the heat sealing block, 19 is the cooling fan, 20 is the fifth electric telescopic rod, and 21 is the vacuum cleaner.

[0025] See Figure 1 and Figure 2 A plastic bag sealing device includes a base 1, a conveyor 2 above the base 1, a first fixing mechanism at the front end of the base 1, a second fixing mechanism at the rear end of the base 1, a support frame 3 on the side of the base 1, a plurality of heat sealing mechanisms at the front end of the support frame 3, a slide rail 4 at the rear end of the support frame 3, a linear motor 5 sliding on the slide rail 4, and a cutting mechanism on the linear motor 5.

[0026] The first fixing mechanism includes a fixing frame 6, a first electric telescopic rod 7, and a suction cup 8. The fixing frame 6 is arranged on both sides of the base 1. A plurality of first electric telescopic rods 7 are evenly arranged on the fixing frame 6. Each of the first electric telescopic rods 7 has a suction cup 8 at its output end.

[0027] The heat sealing mechanism includes a support rod 9, a second electric telescopic rod 10, and a heating block 11. The support rod 9 is fixedly connected to the support frame 3. The two ends of the support rod 9 are provided with the second electric telescopic rod 10, and the output end of the second electric telescopic rod is fixedly connected to the heating block 11.

[0028] The second fixing mechanism includes a support column 12 and a third electric telescopic rod 13. The support column 12 is arranged on both sides of the rear end portion of the base 1. The third electric telescopic rod 13 is fixedly installed on each support column 12. The output end of the third electric telescopic rod 13 is fixedly connected to a pressure plate 14.

[0029] The cutting mechanism includes a fourth electric telescopic rod 15 and a cutting machine 16. The fourth electric telescopic rod 15 is fixedly mounted on the linear motor 5, and the output end of the fourth electric telescopic rod 15 is fixedly connected to the cutting machine 16.

[0030] For example, the plastic bag sealing device provided by this utility model works as follows: Multiple plastic bags to be sealed are placed on a conveyor table 2. When the plastic bags reach the front end of the conveyor table 2, the first electric telescopic rod 7 retracts, and the suction cup 8 picks up the bags and fixes them on the conveyor table 2. This fixing step ensures that the bags will not move during the heat sealing operation. The second electric telescopic rod 10 extends, and the heating block 11 contacts the sealing part of the plastic bag. The heating block 11 heats the sealing part of the plastic bag to its melting temperature, thereby achieving a seal. After heat sealing, the heat is dissipated by a cool air blower, allowing the heat-sealed area to quickly solidify and solidify. The bag is then transferred to the rear end of the support frame 3. At this point, the third electric telescopic rod 13 extends, causing the pressure plate 14 to secure the bag and cover the heat-sealed area, leaving only the portion to be cut exposed. The linear motor 5 drives the fourth electric telescopic rod 15 to move, extending the cutting machine 16 downwards. The cutting machine 16 cuts the heat-sealed bag, removing excess material to form an independent, fully sealed plastic bag. After cutting, the cutting machine 16 retracts upwards, the fourth electric telescopic rod 15 is activated, and the vacuum cleaner 21 moves downwards. Then, the linear motor 5 moves left and right on the slide rail 4 to clean up any debris that falls onto the pressure plate 14.

[0031] Specifically, the heating block 11 is provided with an electric heating wire 17 inside, and a heat sealing block 18 is also fixedly connected to the heating block 11.

[0032] For example, see Figure 2 The heating element 11 is heated by energizing the heating wire 17. To prevent the heating element 11 from overheating, a heat sealing block 18 is fixedly connected to the heating element 11 to conduct heat to the surface of the heat sealing block 18. This ensures the required temperature and prevents the heating element 11 from directly contacting the plastic bag, which could cause the plastic bag to melt due to excessive temperature.

[0033] Specifically, the front end of the support frame 3 is also evenly provided with multiple cooling fans 19.

[0034] For example, the cooling fan 19 can quickly dissipate heat and solidify the plastic bag after heat sealing, preventing the parts of the plastic bag that have been heat-pressed from sticking to other plastic bags or deforming.

[0035] Specifically, the linear motor 5 is also equipped with a fifth electric telescopic rod 20, and the output end of the fifth electric telescopic rod 20 is fixedly connected to a vacuum cleaner 21.

[0036] For example, after the cutting mechanism completes the cutting operation, the controller activates the fifth electric telescopic rod 20 to move the vacuum cleaner 21 downward, and then activates the linear motor 5 to move left and right on the slide rail 4 so that the debris falling on the pressure plate 14 is sucked up.

[0037] Specifically, the pressure plate 14 can cover the heat-sealed area.

[0038] For example, the pressure plate 14 can cover the heat seal area to prevent the heat seal from being cut off during the cutting process, thus protecting the heat seal.

[0039] It should be noted that the controller, electric telescopic rod and linear motor 5 used in the above embodiments are all conventional electronic components that are known to those skilled in the art. Their specific connection circuits and how to select specific models are common knowledge that is known to those skilled in the art. The above embodiments will not be described in detail.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A plastic bag sealing device, comprising a base, characterized in that, A conveyor is provided above the base. A first fixing mechanism is provided at the front end of the base. A second fixing mechanism is provided at the rear end of the base. A support frame is provided on the side of the base. A plurality of heat sealing mechanisms are provided at the front end of the support frame. A slide rail is provided at the rear end of the support frame. A linear motor is slidably mounted on the slide rail. A cutting mechanism is mounted on the linear motor. The first fixing mechanism includes a fixing frame, a first electric telescopic rod, and a suction cup. The fixing frame is arranged on both sides of the base, and a plurality of first electric telescopic rods are evenly arranged on the fixing frame. Each of the first electric telescopic rods has a suction cup at its output end. The heat sealing mechanism includes a support rod, a second electric telescopic rod, and a heating block. The support rod is fixedly connected to the support frame. Both ends of the support rod are provided with a second electric telescopic rod, and the output end of the second electric telescopic rod is fixedly connected to the heating block. The second fixing mechanism includes a support column and a third electric telescopic rod. The support column is arranged on both sides of the rear end portion of the base. The third electric telescopic rod is fixedly installed on the support column. The output end of the third electric telescopic rod is fixedly connected to a pressure plate. The cutting mechanism includes a fourth electric telescopic rod and a cutting machine. The fourth electric telescopic rod is fixedly mounted on the linear motor, and the output end of the fourth electric telescopic rod is fixedly connected to the cutting machine.

2. The plastic bag sealing device according to claim 1, characterized in that, The heating block is equipped with an electric heating wire inside, and a heat sealing block is also fixedly connected to the heating block.

3. A plastic bag sealing device according to claim 2, characterized in that, The front end of the support frame is also equipped with multiple cooling fans.

4. A plastic bag sealing device according to claim 3, characterized in that, The linear motor is also equipped with a fifth electric telescopic rod, and a vacuum cleaner is fixedly connected to the output end of the fifth electric telescopic rod.

5. A plastic bag sealing device according to claim 4, characterized in that, The pressure plate can cover the heat-sealed area.

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