Plastic packaging device for PE packaging bag

Abstract

According to the technical scheme, the PE packaging bag plastic packaging device comprises a placement frame, a supporting mechanism is arranged at the bottom of the placement frame, a conveying belt body is arranged on the supporting mechanism, a sealing mechanism is installed on the placement frame, and a cutting mechanism is arranged on one side of the sealing mechanism; an adjusting mechanism is arranged at the bottom of the conveying belt body, and a cooling mechanism is arranged on one side of the conveying belt body. By arranging the sealing mechanism and the cutting mechanism, after a PE packaging bag enters the operation frame, the side edge of the packaging bag is softened through the high temperature of an electric heating block body, and then the softened side edge of the PE packaging bag is pressed through a sealing pressing roller; when plastic packaging is conducted on the packaging bag, the packaging bag enters the feeding frame immediately, the feeding frame moves to drive the butt joint block and the cutting pieces on the feeding frame to move together, and therefore when the packaging bag is discharged from the feeding frame, the packaging bag can be automatically cut by the cutting pieces on the two sides, plastic packaged corners can be cut conveniently and immediately, the operation process is simplified, and the working procedure machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging bag production, and in particular to a PE packaging bag plastic sealing device. Background Art

[0002] Packaging bags refer to bags used to pack various items, which make it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production. PE packaging bags are made of degradable materials. PE packaging bags can be quickly degraded in the natural environment, reducing pollution to the surrounding environment. After the PE packaging bags are packed with items, they need to be sealed to ensure the storage of the items. Therefore, a special packaging bag plastic sealing device is required. In the existing patent with patent number CN116002152B, an environmentally friendly PE packaging bag plastic sealing device is disclosed.

[0003] However, in actual operation, the PE packaging bag plastic sealing device in the above patent usually needs to cut the edges and corners of the plastic sealing after the PE packaging bag is plastic sealed to ensure the overall beauty of the packaging bag and reduce the influence of the bag body on the external environment. However, when the production workload of the packaging bag is large, the subsequent cutting operation becomes more cumbersome, affecting the processing efficiency of the entire production process; at the same time, in the actual plastic sealing process, there will be packaging bags of different sizes and weights, and their overall heights also have large differences. In this way, when plastic sealing a packaging bag with a higher height, the packaging bag as a whole is prone to wrinkles due to space limitations, so that the top is prone to certain deviations during plastic sealing, affecting the plastic sealing effect of the packaging bag; in addition, since the sealing part of the packaging bag is melted during plastic sealing, after the plastic sealing is completed, its temperature is still high, and the shape of the sealing part is still unstable, which is prone to heat shrinkage, affecting the sealing quality and the appearance of the product. In response to the above problems, the present invention document proposes a PE packaging bag plastic sealing device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a PE packaging bag plastic sealing device which can immediately cut the plastic-sealed packaging bags during the working process, and at the same time facilitate the height adjustment of the packaging bag receiving components of the device according to actual conditions to adapt to packaging bags of different specifications, and can also quickly cool the sealing part of the packaging bag after plastic sealing to reduce heat shrinkage, thereby ensuring the sealing quality and product appearance.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A PE packaging bag plastic sealing device, comprising a placement frame, a supporting mechanism is provided at the bottom of the placement frame, a conveyor belt body is provided on the supporting mechanism, a sealing mechanism is installed on the placement frame, a cutting mechanism is provided on one side of the sealing mechanism, an adjusting mechanism is provided at the bottom of the conveyor belt body, and a cooling mechanism is provided on one side of the conveyor belt body;

[0007] The sealing mechanism comprises an operating frame, the operating frame is installed at the bottom of the placement frame, a moving block is slidably connected to the inner sides of the operating frame, a sealing roller is rotatably connected to the moving block, a group of first electric push rods are respectively arranged on the inner walls of the operating frame, the output end of the first electric push rod is connected to the moving block, and an electric heating block body is arranged on one side of the moving block;

[0008] The cutting mechanism comprises a feed frame, one side of the moving block is fixedly connected to the feed frame, a plurality of docking blocks are arranged in the feed frame, the plurality of docking blocks are buckled with each other through guide rods, and a cutting piece is fixedly connected to the docking block.

[0009] Preferably, two material baffle plates are provided on the side of the operation frame facing away from the feed frame, and the two material baffle plates are arranged opposite to each other.

[0010] Preferably, a plurality of the sealing rollers are provided on the moving block, and the plurality of sealing rollers are linearly distributed at equal intervals.

[0011] Preferably, a limiting rod is fixedly connected inside the feed frame, the limiting rod is slidably connected to the corresponding plurality of docking blocks, and a sealing plug is provided at the opening of the feed frame.

[0012] Preferably, the supporting mechanism comprises supporting rods, a group of supporting rods are respectively provided on both sides of the bottom of the placement frame, each group of supporting rods is provided with two supporting rods, and the bottom of the supporting rods is fixedly connected to a base.

[0013] Preferably, a bottom plate is fixedly connected between the two groups of support rods, and triangular reinforcement plates are provided on both sides of the bottom plate.

[0014] Preferably, the adjustment mechanism includes a second electric push rod, the second electric push rod is installed on the base plate, a pad is provided at the bottom of the conveyor belt body, and the output end of the second electric push rod is connected to the pad.

[0015] Preferably, a protective frame is fixedly connected to the base plate, and the second electric push rod is arranged inside the protective frame. A telescopic sleeve is respectively provided on both sides of the base plate, and the top of the telescopic sleeve is fixedly connected to the pad.

[0016] Preferably, the cooling mechanism comprises a fixed block, and a fixed block is fixedly connected to both sides of one end of the conveyor belt body respectively, and the interior of the fixed block is rotatably connected to a mounting frame via a coupling, and a plurality of fan bodies are installed inside the mounting frame.

[0017] Preferably, a third electric push rod is provided on the top of the fixed block, and a tooth plate is connected to the output end of the third electric push rod. The tooth plate is slidably connected to the inside of the fixed block, and one end of the connecting shaft is fixedly connected to a gear, and the tooth plate is meshed with the gear.

[0018] Compared with the prior art, the present invention provides a PE packaging bag plastic sealing device, which has the following beneficial effects:

[0019] 1. The PE packaging bag plastic sealing device is provided with an operation frame, a moving block, a sealing roller, a first electric push rod, an electric heating block body, a feeding frame, a docking block and a cutting piece. When the PE packaging bag enters the operating frame, it will first pass through two electric heating block bodies. Under the high temperature of the electric heating block bodies, the side of the packaging bag will soften immediately. Then, the moving block is pushed by the first electric push rod until the sealing roller on the moving block can resist and press the side of the softened PE packaging bag. When the PE packaging bag is completed with plastic sealing, it will immediately enter the feeding frame. Previously, as the moving block moves, the feeding frame will be driven to move together. The movement of the feeding frame drives the docking block and the cutting piece thereon to move together. In this way, when the packaging bag comes out of the feeding frame, it will be automatically cut by the cutting pieces on both sides, so that it is convenient to immediately cut the edges and corners after plastic sealing, simplifying the subsequent operation process and improving the processing efficiency of the entire production process.

[0020] 2. The PE packaging bag plastic sealing device is provided with a second electric push rod, a protective frame, a telescopic sleeve and a pad. When in use, for PE packaging bags of different heights, the user can connect the second electric push rod to the power supply, and the second electric push rod will start to continue to lift and lower the pad, thereby driving the conveyor belt body to lift and lower together. Furthermore, the telescopic sleeve is used to improve the stability of the entire lifting process, so that when in use, it is convenient to adjust the height of the conveyor belt body according to actual conditions to adapt to packaging bags of different specifications, avoid wrinkles when the packaging bags are plastic sealed, reduce deviations during plastic sealing, and ensure the plastic sealing effect of the packaging bags.

[0021] 3. For this PE packaging bag heat-sealing device, by setting the mounting frame, the main body of the fan, the third electric push rod, the toothed plate, the coupling shaft and the gear, after the heat-sealing of the PE packaging bag is completed, the third electric push rod and the main body of the fan can be powered on simultaneously. Then, during the discharging process of the PE packaging bag, through the main body of the fan, the heat-sealed part of the packaging bag can be quickly cooled down. Moreover, the third electric push rod drives the toothed plate to move up and down, then drives the gear to deflect back and forth, and further drives the entire mounting frame and the main body of the fan to deflect back and forth through the coupling shaft, further improving the cooling effect of the main body of the fan, so that the seal can be quickly cooled after heat-sealing, reducing the heat shrinkage phenomenon, ensuring the sealing quality and the product appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional view of a PE packaging bag heat-sealing device proposed by the present invention;

[0023] Figure 2 It is a view of the connection structure of the mounting frame, the support mechanism, the main body of the conveyor belt, the sealing mechanism adjustment mechanism and the cooling mechanism of the present invention;

[0024] Figure 3 It is a view of the connection structure of the mounting frame, the operation frame and the cutting mechanism of the present invention;

[0025] Figure 4 It is a view of the connection structure of the sealing mechanism and the cutting mechanism of the present invention;

[0026] Figure 5 It is a view of the connection structure of the operation frame and the cutting mechanism of the present invention;

[0027] Figure 6 It is a view of the connection structure of the feeding frame, the limiting rod, the docking block, the cut piece and the guiding rod of the present invention;

[0028] Figure 7 It is a view of the connection structure of the support mechanism, the main body of the conveyor belt, the adjustment mechanism and the cooling mechanism of the present invention;

[0029] Figure 8 It is a view of the connection structure of the fixed block, the mounting frame, the main body of the fan and the third electric push rod of the present invention;

[0030] Figure 9 It is a view of the connection structure of the mounting frame, the main body of the fan, the third electric push rod, the toothed plate, the coupling shaft and the gear of the present invention.

[0031] In the figure: 1. Placement frame; 2. Support mechanism; 201. Support rod; 202. Base; 203. Bottom plate; 204. Reinforcement plate; 3. Conveyor belt main body; 4. Sealing mechanism; 401. Operation frame; 402. Material baffle; 403. Moving block; 404. Sealing pressure roller; 405. First electric push rod; 406. Electric heating block main body; 5. Cutting mechanism; 501. Feeding frame; 502. Plug; 503. Limit rod; 504. Docking block; 505. Cut piece; 506. Guide rod; 6. Adjusting mechanism; 601. Second electric push rod; 602. Protection frame; 603. Telescopic sleeve; 604. Base plate; 7. Cooling mechanism; 701. Fixed block; 702. Installation frame; 703. Fan main body; 704. Third electric push rod; 705. Rack; 706. Coupling shaft; 707. Gear. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0034] Embodiment 1:

[0035] Referring to Figures 1-7 , a plastic sealing device for PE packaging bags, including a placement frame 1, a support mechanism 2 is provided at the bottom of the placement frame 1, a conveyor belt main body 3 is provided on the support mechanism 2, a sealing mechanism 4 is installed on the placement frame 1, a cutting mechanism 5 is provided on one side of the sealing mechanism 4, an adjusting mechanism 6 is provided at the bottom of the conveyor belt main body 3, and a cooling mechanism 7 is provided on one side of the conveyor belt main body 3;

[0036] The sealing mechanism 4 includes an operating frame 401, the operating frame 401 is installed at the bottom of the placement frame 1, and a moving block 403 is slidably connected to the inner sides of the operating frame 401, and a sealing roller 404 is rotatably connected to the moving block 403. A group of first electric push rods 405 are respectively provided on both sides of the inner wall of the operating frame 401, and the output end of the first electric push rod 405 is connected to the moving block 403. An electric heating block body 406 is provided on one side of the moving block 403. Two baffle plates 402 are provided on the side of the operating frame 401 away from the feed frame 501, and the two baffle plates 402 are arranged opposite to each other. A plurality of sealing rollers 404 are provided on the moving block 403, and the plurality of sealing rollers 404 are linearly distributed at equal intervals. By setting the operation frame 401 and the baffle plate 402, in actual operation, the electric heating block body 406 is connected to the power supply, and then the end of the PE packaging bag that needs to be sealed is put into the operation frame 401 through the baffle plate 402. When the PE packaging bag enters the operation frame 401, it will first pass through the two electric heating block bodies 406. Under the high temperature of the electric heating block bodies 406, the side of the packaging bag will soften immediately. Then, under the action of the first electric push rod 405, the moving block 403 is pushed until the sealing roller 404 on the moving block 403 can resist and press the side of the softened PE packaging bag. Through multiple sets of sealing rollers 404, the plastic sealing work on one side of the PE packaging bag is conveniently completed.

[0037] The cutting mechanism 5 includes a feed frame 501, one side of the moving block 403 is fixedly connected to the feed frame 501, a plurality of docking blocks 504 are arranged in the feed frame 501, the plurality of docking blocks 504 are mutually buckled through a guide rod 506, and a cutting piece 505 is fixedly connected to the docking block 504, a limiting rod 503 is fixedly connected inside the feed frame 501, the limiting rod 503 is slidably connected to the corresponding plurality of docking blocks 504, and a sealing plug 502 is arranged at the opening of the feed frame 501, by setting the feed frame 50 1. After the PE packaging bag is sealed, it immediately enters the feeding frame 501. Previously, as the moving block 403 moves, the feeding frame 501 will be driven to move together. The movement of the feeding frame 501 drives the docking block 504 and the cutting piece 505 thereon to move together. In this way, when the packaging bag comes out of the feeding frame 501, it will be automatically cut by the cutting pieces 505 on both sides, so that it is convenient to immediately cut the edges and corners after plastic sealing, simplifying the subsequent operation process and improving the processing efficiency of the entire production process.

[0038] By setting the operation frame 401, the material blocking plate 402, the moving block 403, the sealing roller 404, the first electric push rod 405, the electric heating block body 406, the feeding frame 501, the sealing plug 502, the docking block 504 and the cutting piece 505, in actual operation, the electric heating block body 406 is connected to the power supply, and then the end of the PE packaging bag to be sealed is put into the operation frame 401 through the material blocking plate 402. When the PE packaging bag enters the operation frame 401, it will first pass through the two electric heating block bodies 406. Under the high temperature of the electric heating block bodies 406, the side of the packaging bag will soften immediately. Then, under the action of the first electric push rod 405, the moving block 403 is pushed until the sealing roller 404 on the moving block 403 can resist and press the side of the softened PE packaging bag. Through multiple groups of sealing rollers 404, the plastic sealing work on one side of the PE packaging bag is conveniently completed.

[0039] Next, when the PE packaging bag is sealed, it immediately enters the feed frame 501. Previously, as the moving block 403 moves, the feed frame 501 will be driven to move at the same time. The movement of the feed frame 501 drives the docking block 504 and the cutting piece 505 thereon to move together. In this way, when the packaging bag comes out of the feed frame 501, it will be automatically cut by the cutting pieces 505 on both sides, so that it is convenient to immediately cut the edges and corners after plastic sealing, simplifying the subsequent operation process and improving the processing efficiency of the entire production process. By opening the sealing plug 502, it is convenient to disassemble and replace the docking block 504 and the cutting piece 505.

[0040] In the present invention, the support mechanism 2 includes a support rod 201, and a group of support rods 201 are respectively provided on both sides of the bottom of the placement frame 1, and each group of support rods 201 is provided with two, and the bottom of the support rod 201 is fixedly connected with a base 202, and a bottom plate 203 is fixedly connected between the two groups of support rods 201. Triangular reinforcement plates 204 are provided on both sides of the bottom plate 203. By arranging the support rod 201 and the base 202, it is convenient to fix the entire device, and through the bottom plate 203 and the reinforcement plate 204, it is convenient to place the adjustment mechanism 6.

[0041] In the present invention, the adjusting mechanism 6 includes a second electric push rod 601. The second electric push rod 601 is installed on the bottom plate 203. A cushion plate 604 is provided at the bottom of the conveyor belt main body 3. The output end of the second electric push rod 601 is connected to the cushion plate 604. A protective frame 602 is fixedly connected to the bottom plate 203, and the second electric push rod 601 is arranged inside the protective frame 602. A telescopic sleeve 603 is provided on each side of the bottom plate 203. The top of the telescopic sleeve 603 is fixedly connected to the cushion plate 604. By providing the second electric push rod 601, the protective frame 602, the telescopic sleeve 603 and the cushion plate 604, during use, according to the actual situation, for PE packaging bags of different heights, the user can connect the second electric push rod 601 to the power supply, then the second electric push rod 601 starts to adjust the lifting of the cushion plate 604, thereby driving the conveyor belt main body 3 to lift together. Further, through the telescopic sleeve 603, the stability of the entire lifting process is improved, so that it is convenient to adjust the height of the conveyor belt main body 3 according to the actual situation during use to adapt to packaging bags of different specifications, avoid wrinkles in the packaging bags during plastic sealing, reduce the deviation generated during plastic sealing, and ensure the plastic sealing effect of the packaging bags.

[0042] Embodiment 2:

[0043] Refer to Figures 1-9 , a PE packaging bag plastic sealing device, includes a placement frame 1. A support mechanism 2 is provided at the bottom of the placement frame 1. A conveyor belt main body 3 is provided on the support mechanism 2. A sealing mechanism 4 is installed on the placement frame 1. A cutting mechanism 5 is provided on one side of the sealing mechanism 4. An adjusting mechanism 6 is provided at the bottom of the conveyor belt main body 3. A cooling mechanism 7 is provided on one side of the conveyor belt main body 3;

[0044] The sealing mechanism 4 includes an operating frame 401, the operating frame 401 is installed at the bottom of the placement frame 1, and a moving block 403 is slidably connected to the inner sides of the operating frame 401, and a sealing roller 404 is rotatably connected to the moving block 403. A group of first electric push rods 405 are respectively provided on both sides of the inner wall of the operating frame 401, and the output end of the first electric push rod 405 is connected to the moving block 403. An electric heating block body 406 is provided on one side of the moving block 403. Two baffle plates 402 are provided on the side of the operating frame 401 away from the feed frame 501, and the two baffle plates 402 are arranged opposite to each other. A plurality of sealing rollers 404 are provided on the moving block 403, and the plurality of sealing rollers 404 are linearly distributed at equal intervals. By setting the operation frame 401 and the baffle plate 402, in actual operation, the electric heating block body 406 is connected to the power supply, and then the end of the PE packaging bag that needs to be sealed is put into the operation frame 401 through the baffle plate 402. When the PE packaging bag enters the operation frame 401, it will first pass through the two electric heating block bodies 406. Under the high temperature of the electric heating block bodies 406, the side of the packaging bag will soften immediately. Then, under the action of the first electric push rod 405, the moving block 403 is pushed until the sealing roller 404 on the moving block 403 can resist and press the side of the softened PE packaging bag. Through multiple sets of sealing rollers 404, the plastic sealing work on one side of the PE packaging bag is conveniently completed.

[0045] The cutting mechanism 5 includes a feed frame 501, one side of the moving block 403 is fixedly connected to the feed frame 501, a plurality of docking blocks 504 are arranged in the feed frame 501, the plurality of docking blocks 504 are mutually buckled through a guide rod 506, and a cutting piece 505 is fixedly connected to the docking block 504, a limiting rod 503 is fixedly connected inside the feed frame 501, the limiting rod 503 is slidably connected to the corresponding plurality of docking blocks 504, and a sealing plug 502 is arranged at the opening of the feed frame 501, by setting the feed frame 50 1. After the PE packaging bag is sealed, it immediately enters the feeding frame 501. Previously, as the moving block 403 moves, the feeding frame 501 will be driven to move together. The movement of the feeding frame 501 drives the docking block 504 and the cutting piece 505 thereon to move together. In this way, when the packaging bag comes out of the feeding frame 501, it will be automatically cut by the cutting pieces 505 on both sides, so that it is convenient to immediately cut the edges and corners after plastic sealing, simplifying the subsequent operation process and improving the processing efficiency of the entire production process.

[0046] By setting the operation box 401, the baffle 402, the moving block 403, the sealing press roller 404, the first electric push rod 405, the main body of the electric heating block 406, the feeding frame 501, the plug 502, the docking block 504 and the cutting piece 505, in actual operation, the main body of the electric heating block 406 is powered on, and one end of the PE packaging bag to be heat-sealed is put into the operation box 401 through the baffle 402. When the PE packaging bag enters the operation box 401, it will first pass through two main bodies of the electric heating block 406. Under the high temperature of the main body of the electric heating block 406, the side of the packaging bag is softened immediately. Then, under the action of the first electric push rod 405, the moving block 403 is pushed until the sealing press roller 404 on the moving block 403 can contact and press the softened side of the PE packaging bag. Through multiple groups of sealing press rollers 404, it is convenient to complete the heat-sealing work on one side of the PE packaging bag.

[0047] Next, when the PE packaging bag is heat-sealed, it then enters the feeding frame 501. And with the movement of the moving block 403 before, the feeding frame 501 will be driven to move at the same time. The movement of the feeding frame 501 drives the docking block 504 and the cutting piece 505 on it to move together. In this way, when the packaging bag comes out of the feeding frame 501, it will be automatically cut by the cutting pieces 505 on both sides, thus facilitating the immediate cutting of the corners after heat-sealing, simplifying the subsequent operation process, improving the processing efficiency of the entire production process, and by opening the plug 502, it is convenient to disassemble, install and replace the docking block 504 and the cutting piece 505.

[0048] In the present invention, the support mechanism 2 includes support rods 201. A set of support rods 201 are respectively provided on both sides of the bottom of the placement frame 1. Each set of support rods 201 has two support rods. The bottom of the support rods 201 is fixedly connected with a base 202. A bottom plate 203 is fixedly connected between the two sets of support rods 201. Triangular reinforcement plates 204 are provided on both sides of the bottom plate 203. By setting the support rods 201 and the base 202, it is convenient to fixedly place the entire device. By the bottom plate 203 and the reinforcement plates 204, it is convenient to place the adjustment mechanism 6.

[0049] In the present invention, the adjusting mechanism 6 includes a second electric push rod 601. The second electric push rod 601 is installed on the bottom plate 203. A cushion plate 604 is provided at the bottom of the conveyor belt main body 3. The output end of the second electric push rod 601 is connected to the cushion plate 604. A protective frame 602 is fixedly connected to the bottom plate 203, and the second electric push rod 601 is arranged inside the protective frame 602. A telescopic sleeve 603 is provided on each side of the bottom plate 203. The top of the telescopic sleeve 603 is fixedly connected to the cushion plate 604. By providing the second electric push rod 601, the protective frame 602, the telescopic sleeve 603 and the cushion plate 604, during use, according to the actual situation, for PE packaging bags of different heights, the user can connect the second electric push rod 601 to the power supply, then the second electric push rod 601 starts to adjust the lifting of the cushion plate 604, thereby driving the conveyor belt main body 3 to lift together. Further, through the telescopic sleeve 603, the stability of the entire lifting process is improved, so that it is convenient to adjust the height of the conveyor belt main body 3 according to the actual situation during use to adapt to packaging bags of different specifications, avoid wrinkles in the packaging bags during plastic sealing, reduce the deviation generated during plastic sealing, and ensure the plastic sealing effect of the packaging bags.

[0050] In the present invention, the cooling mechanism 7 includes a fixed block 701. A fixed block 701 is fixedly connected to each side of one end of the conveyor belt main body 3. An installation frame 702 is rotatably connected inside the fixed block 701 through a connecting shaft 706. A plurality of fan bodies 703 are installed inside the installation frame 702. A third electric push rod 704 is provided on the top of the fixed block 701. A toothed plate 705 is connected to the output end of the third electric push rod 704. The toothed plate 705 is slidably connected inside the fixed block 701, and one end of the connecting shaft 706 is fixedly connected to a gear 707. The toothed plate 705 meshes with the gear 707. By providing the fixed block 701, the installation frame 702, the fan bodies 703, the third electric push rod 704, the toothed plate 705, the connecting shaft 706 and the gear 707, during actual operation, when the plastic sealing of the PE packaging bag is completed, the third electric push rod 704 and the fan bodies 703 on the fixed block 701 can be connected to the power supply at the same time. Then, during the discharging process of the PE packaging bag, through the fan bodies 703, the plastic sealing part of the packaging bag can be quickly cooled down. Further, the third electric push rod 704 drives the toothed plate 705 to move up and down, then drives the gear 707 to deflect back and forth, and further drives the entire installation frame 702 and the fan bodies 703 to deflect back and forth through the connecting shaft 706, further improving the cooling effect of the fan bodies 703, so that the sealing can be quickly cooled after plastic sealing is completed, reducing the heat shrinkage phenomenon, and ensuring the sealing quality and product appearance.

[0051] Working principle: During actual work, by providing the support rod 201 and the base 202, it is convenient to fixedly install the entire device. By means of the bottom plate 203 and the reinforcement plate 204, it is convenient to install the adjusting mechanism 6.

[0052] When heat-sealing a PE packaging bag, first connect the power supply to the main body 406 of the heating block, and then put one end of the PE packaging bag to be heat-sealed into the interior of the operation frame 401 through the baffle 402. When the PE packaging bag enters the interior of the operation frame 401, it will first pass through the two main bodies 406 of the heating blocks. Under the high temperature of the main bodies 406 of the heating blocks, the side edges of the packaging bag will immediately soften. Then, under the action of the first electric push rod 405, the moving block 403 is pushed until the sealing pressure roller 404 on the moving block 403 can press against the softened side edge of the PE packaging bag. Through multiple groups of sealing pressure rollers 404, it is convenient to complete the heat-sealing work on one side of the PE packaging bag.

[0053] Next, when the heat-sealing of the PE packaging bag is completed, it will immediately enter the interior of the feeding frame 501. And before that, as the moving block 403 moves, it will drive the feeding frame 501 to move together. The movement of the feeding frame 501 drives the docking block 504 and the cutting piece 505 on it to move together. In this way, when the packaging bag comes out of the feeding frame 501, it will be automatically cut by the cutting pieces 505 on both sides, thus facilitating the immediate cutting of the corners after heat-sealing, simplifying the subsequent operation process, improving the processing efficiency of the entire production process, and by opening the plug 502, it is convenient to disassemble, install and replace the docking block 504 and the cutting piece 505.

[0054] Next, when the heat-sealing of the PE packaging bag is completed, the power supplies of the third electric push rod 704 and the blower main body 703 on the fixed block 701 can be connected at the same time. Then, during the discharging process of the PE packaging bag, through the blower main body 703, the heat-sealed part of the packaging bag can be quickly cooled down. Moreover, the third electric push rod 704 drives the toothed plate 705 to move up and down, and then drives the gear 707 to deflect back and forth, and further drives the entire installation frame 702 and the blower main body 703 to deflect back and forth through the coupling shaft 706, further improving the cooling effect of the blower main body 703, so that the seal can be quickly cooled after heat-sealing, reducing the heat shrinkage phenomenon, ensuring the sealing quality and the product appearance.

[0055] In addition, according to the actual situation, for PE packaging bags of different heights, the user can connect the power supply to the second electric push rod 601. Then the second electric push rod 601 starts to adjust the lifting of the backing plate 604, and further drives the conveyor belt main body 3 to lift. Moreover, through the telescopic sleeve 603, the stability of the entire lifting process is improved. Thus, when in use, it is convenient to adjust the height of the conveyor belt main body 3 according to the actual situation to adapt to packaging bags of different specifications, avoid wrinkles during heat-sealing of the packaging bag, reduce the deviation generated during heat-sealing, and ensure the heat-sealing effect of the packaging bag.

[0056] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention by making equivalent substitutions or changes according to the technical solution and inventive concept of the present invention.

Claims

1. A PE packaging bag plastic sealing device, comprising a placement frame, characterized in that: A supporting mechanism is provided at the bottom of the placement frame, a conveyor belt body is provided on the supporting mechanism, a sealing mechanism is installed on the placement frame, a cutting mechanism is provided on one side of the sealing mechanism, an adjusting mechanism is provided at the bottom of the conveyor belt body, and a cooling mechanism is provided on one side of the conveyor belt body; The sealing mechanism comprises an operating frame, the operating frame is installed at the bottom of the placement frame, a moving block is slidably connected to the inner sides of the operating frame, a sealing roller is rotatably connected to the moving block, a group of first electric push rods are respectively arranged on the inner walls of the operating frame, the output end of the first electric push rod is connected to the moving block, and an electric heating block body is arranged on one side of the moving block; The cutting mechanism comprises a feed frame, one side of the moving block is fixedly connected to the feed frame, a plurality of docking blocks are arranged in the feed frame, the plurality of docking blocks are buckled with each other through guide rods, and a cutting piece is fixedly connected to the docking block.

2. A PE packaging bag plastic sealing device according to claim 1, characterized in that: Two material baffle plates are arranged on one side of the operation frame away from the feed frame, and the two material baffle plates are arranged opposite to each other.

3. A PE packaging bag plastic sealing device according to claim 2, characterized in that: A plurality of sealing rollers are provided on the moving block, and the plurality of sealing rollers are linearly distributed at equal intervals.

4. A PE packaging bag plastic sealing device according to claim 1, characterized in that: A limiting rod is fixedly connected inside the feed frame, the limiting rod is slidably connected to a plurality of corresponding docking blocks, and a sealing plug is provided at the opening of the feed frame.

5. A PE packaging bag plastic sealing device according to claim 1, characterized in that: The supporting mechanism comprises supporting rods. A group of supporting rods are respectively arranged on both sides of the bottom of the placement frame, and each group of supporting rods is provided with two supporting rods. The bottom of the supporting rods is fixedly connected with a base.

6. A PE packaging bag plastic sealing device according to claim 5, characterized in that: A bottom plate is fixedly connected between the two groups of support rods, and triangular reinforcement plates are provided on both sides of the bottom plate.

7. A PE packaging bag plastic sealing device according to claim 6, characterized in that: The adjusting mechanism comprises a second electric push rod, which is mounted on the bottom plate, a pad is provided at the bottom of the conveyor belt body, and an output end of the second electric push rod is connected to the pad.

8. A PE packaging bag plastic sealing device according to claim 7, characterized in that: A protection frame is fixedly connected to the bottom plate, and the second electric push rod is arranged inside the protection frame. A telescopic sleeve is respectively provided on both sides of the bottom plate, and the top of the telescopic sleeve is fixedly connected to the pad.

9. A PE packaging bag plastic sealing device according to claim 1, characterized in that: The cooling mechanism comprises a fixed block, and two sides of one end of the conveyor belt body are respectively fixedly connected with a fixed block, the interior of the fixed block is rotatably connected with an installation frame through a coupling, and a plurality of fan bodies are installed inside the installation frame.

10. A PE packaging bag plastic sealing device according to claim 9, characterized in that: A third electric push rod is provided on the top of the fixed block, and a toothed plate is connected to the output end of the third electric push rod. The toothed plate is slidably connected to the inside of the fixed block, and one end of the connecting shaft is fixedly connected to a gear, and the toothed plate is meshed with the gear.

Images