Bag bottom forming and heating device for a bag making machine

Abstract

The utility model discloses a bag bottom forming heating device of bag making machine relates to bag making machine technical field, including bag making machine and the transmission connection of its conveyer belt, the surface of conveyer belt is provided with packing bag, the surface of bag making machine is provided with brake mechanism, the brake mechanism includes elevating support and heating plate, the surface fixedly connected with monitoring probe of elevating support, the inside of heating plate is provided with the heat sealing mechanism of heat sealing packing bag, the heat sealing mechanism includes first heating strip and second heating strip, the inside slidingly connected with adjusting lever of heating plate, and this bag bottom forming heating device of bag making machine is detected and tracking to the identification of packing bag through monitoring probe, avoids the deviation when sealing, drives heating plate through elevating support, makes first heating strip and second heating strip and packing bag mutually close, and simultaneously completes the bag bottom sealing operation of multiple packing bags, improves packing bag bag bottom sealing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, specifically a bag bottom forming heating device for a bag making machine. Background Technology

[0002] A bag-making machine is a machine that produces various plastic or other material packaging bags. Its processing range includes packaging bags of various sizes, thicknesses, and specifications made of plastic or other materials, with plastic packaging bags being the main product.

[0003] Utility model patent CN216761004U discloses a sealing mechanism for a high-speed bag-making machine used in packaging bag processing, relating to the field of packaging bag sealing technology. It includes a frame with a groove on its inner wall, support legs fixedly connected to the bottom of the frame, and a conveying mechanism located below the support legs. This sealing mechanism can seal the bag, while the transmission mechanism can be adjusted according to the bag size. This solves the problem that current packaging bag sealing machines cannot adjust the length of the heating plate according to the size of the packaging bag, which causes difficulties for operators during use.

[0004] During the production of packaging bags, the sides and bottom of the bags need to be sealed. Although the sealing mechanism in the aforementioned patent is convenient for adjusting the length of the transmission mechanism, there will be some excess heating plate during use. Prolonged heating of the excess heating plate can easily accelerate the damage of the heating plate and affect the sealing effect of the packaging bag. To address this issue, we provide a bag bottom forming heating device for a bag making machine. Utility Model Content

[0005] The purpose of this invention is to provide a bag bottom forming heating device for a bag making machine to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bag bottom forming heating device for a bag making machine, comprising a bag making machine and a conveyor belt connected to it for transmission, wherein a packaging bag is disposed on the surface of the conveyor belt, and a braking mechanism is disposed on the surface of the bag making machine, wherein the braking mechanism comprises a lifting frame and a heating plate, and a monitoring probe is fixedly connected to the surface of the lifting frame;

[0007] The heating plate is equipped with a heat-sealing mechanism for the packaging bag. The heat-sealing mechanism includes a first heating strip and a second heating strip. An adjusting rod is slidably connected inside the heating plate, and the second heating strip is fixed to the bottom of the adjusting rod.

[0008] Preferably, a support frame is fixedly connected to the surface of the bag making machine, and a lifting device is fixedly connected to the middle of the support frame. The output end of the lifting device is fixedly connected to the lifting frame. The lifting frame is controlled to move up and down through the support frame and the lifting device. When sealing is required, the lifting frame drives the heating plate to move down to seal the packaging bag.

[0009] Preferably, the surface of the heating plate is provided with a limiting groove, and the inside of the lifting frame is fixedly connected to a limiting slide rod, and the limiting groove and the limiting slide rod are slidably connected. The heating plate is positioned by the limiting groove and the limiting slide rod, thereby improving the stability of the heating plate running inside the lifting frame.

[0010] Preferably, a signal connector is fixedly connected inside the lifting frame, the signal connector is electrically connected to the heating plate, and a fixing rod for limiting the heating plate is rotatably connected to the middle of the lifting frame. The heating plate is fixed inside the lifting frame by engaging the movable end of the fixing rod with the lifting frame.

[0011] Preferably, a positioning plate is fixedly connected to the surface of the adjusting rod, and the positioning plate is movably connected to the heating plate. A fixing block is slidably connected inside the heating plate, and the fixing block abuts against the positioning plate. By moving the fixing block upward, it dampens and abuts against the positioning plate, thus fixing the position of the positioning plate.

[0012] Preferably, the heating plate has an internal threaded connection with an adjusting bolt, and the top of the adjusting bolt is rotatably connected to the fixing block. The adjusting bolt adjusts the force of the fixing block and the positioning plate against each other.

[0013] Preferably, the heating plate has a sliding groove inside, and a sliding block is slidably connected inside the sliding groove. The sliding block is fixedly connected to the adjusting rod. The sliding groove and the sliding block are used to position and support the adjusting rod, thereby improving the stability of the lateral adjustment of the adjusting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application uses a monitoring probe to detect and track the markings on the packaging bags, preventing deviations during sealing and improving the accuracy of bottom sealing. The lifting frame moves the heating plate up and down, allowing the first and second heating strips to heat the packaging bags. This enables the simultaneous sealing of the bottoms of multiple packaging bags, improving the efficiency of bottom sealing.

[0016] 2. This application controls the up-and-down movement of the lifting frame through a support frame and lifting equipment. When sealing is required, the lifting frame moves the heating plate downward to seal the packaging bag. The heating plate is positioned by the limiting groove and the limiting slide rod, which improves the stability of the heating plate running inside the lifting frame and prevents the heating plate from sliding randomly when moving up and down. It also allows for quick replacement of heating plates when different width heating strips are needed, avoiding the generation of heating blank areas, improving the stability of heat sealing of packaging bags, and extending the service life of the heating plate.

[0017] 3. This application uses a signal connector to electrically connect the heating plate and the lifting frame, improving the stability of the heating plate's operation. The movable end of the fixing rod is engaged with the lifting frame, fixing the heating plate inside the lifting frame. The fixing block moves upward and engages with the positioning plate, thus fixing the position of the positioning plate and consequently fixing the position of the adjusting rod. The adjusting bolt adjusts the force of the engagement between the fixing block and the positioning plate. When the positioning plate needs to be fixed, the adjusting bolt is tightened; when the positioning plate needs to be moved, the adjusting bolt is loosened. The sliding groove and sliding block position and support the adjusting rod, improving the stability of the lateral adjustment of the adjusting rod. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a bag bottom forming heating device for a bag making machine according to the present invention;

[0019] Figure 2 This is a schematic diagram of the heating plate connection structure of a bag bottom forming heating device for a bag making machine according to the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the heating plate of the bag bottom forming heating device of the bag making machine according to the present invention;

[0021] Figure 4 This is a cross-sectional view of the heating plate of the bag bottom forming heating device of a bag making machine according to the present invention.

[0022] Labels in the diagram: 1. Bag making machine; 2. Conveyor belt; 3. Packaging bag;

[0023] 4. Braking mechanism; 401. Lifting frame; 402. Support frame; 403. Lifting equipment; 404. Heating plate; 405. Limiting groove; 406. Limiting slide bar; 407. Signal connector; 408. Fixing rod; 409. Monitoring probe;

[0024] 5. Heat sealing mechanism; 501. First heating bar; 502. Adjusting rod; 503. Second heating bar; 504. Positioning plate; 505. Fixing block; 506. Adjusting bolt; 507. Sliding groove; 508. Sliding block. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution for a bag bottom forming heating device for a bag making machine.

[0027] Please see Figure 1 The system includes a bag making machine 1 and a conveyor belt 2 connected to it. The surface of the conveyor belt 2 is provided with a packaging bag 3, and the surface of the bag making machine 1 is provided with a braking mechanism 4. The packaging bag 3 is transported through the conveyor belt 2 and supported. The conveyor belt 2 is made of high temperature resistant material and can withstand the heat generated by the heating plate 404. The braking mechanism 4 is located after the side sealing station and before the cutting station. After the side sealing and bottom sealing, the packaging bag 3 is cut to produce a single bag that can be used to package products.

[0028] "Bag" is a shorthand term for the packaging bag used to package a single product.

[0029] Please see Figure 1 , Figure 2 and Figure 3 The braking mechanism 4 includes a lifting frame 401 and a heating plate 404. A monitoring probe 409 is fixedly connected to the surface of the lifting frame 401. The lifting frame 401 drives the heating plate 404 to move up and down. The heating plate 404 heat-seals the bag, improving the stability and convenience of the bag bottom heat sealing. The monitoring probe 409 detects and tracks the markings on the packaging bag 3 to avoid deviation during sealing and improve the accuracy of the bag bottom sealing.

[0030] A support frame 402 is fixedly connected to the surface of the bag making machine 1. A lifting device 403 is fixedly connected to the middle of the support frame 402, and the output end of the lifting device 403 is fixedly connected to the lifting frame 401. The lifting frame 401 is controlled to move up and down through the support frame 402 and the lifting device 403. When sealing is required, the lifting frame 401 drives the heating plate 404 to move down to seal the packaging bag 3.

[0031] A limiting groove 405 is formed on the surface of the heating plate 404, and a limiting slide rod 406 is fixedly connected inside the lifting frame 401. The limiting groove 405 and the limiting slide rod 406 are slidably connected. The heating plate 404 is positioned by the limiting groove 405 and the limiting slide rod 406, which improves the stability of the heating plate 404 in the lifting frame 401 and prevents the heating plate 404 from sliding randomly when moving up and down. It also allows for quick replacement of the heating plate 404 when heating strips of different widths are needed, avoiding the generation of heating blank areas, improving the heat sealing stability of the packaging bag 3, and extending the service life of the heating plate 404.

[0032] The lifting frame 401 is internally fixedly connected to a signal connector 407, which is electrically connected to the heating plate 404. The middle part of the lifting frame 401 is rotatably connected to a fixing rod 408 that limits the heating plate 404. The heating plate 404 is electrically connected to the lifting frame 401 through the signal connector 407, which improves the stability of the operation of the heating plate 404. The moving end of the fixing rod 408 is snapped into the lifting frame 401, thus fixing the heating plate 404 inside the lifting frame 401.

[0033] Please see Figure 3 and Figure 4 The heating plate 404 is equipped with a heat sealing mechanism 5 for heat sealing packaging bag 3. The heat sealing mechanism 5 includes a first heating strip 501 and a second heating strip 503. Two sets of the second heating strip 503 are provided and distributed on both sides of the first heating strip 501. An adjusting rod 502 is slidably connected inside the heating plate 404, and the second heating strip 503 is fixed to the bottom of the adjusting rod 502. Both the first heating strip 501 and the second heating strip 503 are electrically connected to the heating plate 404. The heating plate 404 controls whether the first heating strip 501 and the second heating strip 503 are energized and heated.

[0034] The second heating strip 503 is positioned by adjusting rod 502. By moving the position of adjusting rod 502, the distance between the first heating strip 501 and the second heating strip 503 is adjusted. Through the first heating strip 501 and the second heating strip 503, the bottom sealing operation of multiple packaging bags 3 can be completed simultaneously, thereby improving the bottom sealing efficiency of packaging bags 3.

[0035] A positioning plate 504 is fixedly connected to the surface of the adjusting rod 502, and the positioning plate 504 is movably connected to the heating plate 404. A fixing block 505 is slidably connected inside the heating plate 404, and the fixing block 505 abuts against the positioning plate 504. By moving the fixing block 505 upward, it abuts against the positioning plate 504 with damping, thereby fixing the position of the positioning plate 504 and thus fixing the position of the adjusting rod 502.

[0036] The heating plate 404 has an internal threaded connection with an adjusting bolt 506, and the top of the adjusting bolt 506 is rotatably connected to the fixing block 505. The adjusting bolt 506 adjusts the force of the fixing block 505 and the positioning plate 504 against each other. When it is necessary to fix the positioning plate 504, the adjusting bolt 506 is tightened, and when it is necessary to move the positioning plate 504, the adjusting bolt 506 is loosened.

[0037] The heating plate 404 has a sliding groove 507 inside, and a sliding block 508 is slidably connected inside the sliding groove 507. The sliding block 508 is fixedly connected to the adjusting rod 502. The sliding groove 507 and the sliding block 508 are used to position and support the adjusting rod 502, thereby improving the stability of the lateral adjustment of the adjusting rod 502.

[0038] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0039] In use, this invention involves: first, selecting heat-sealing strips of different widths according to production needs; then, choosing a suitable heating plate 404; adjusting the second heating strip 503 to a suitable position according to the length of a single bag; tightening the adjusting bolts 506 to make the fixing block 505 and the positioning plate 504 abut against each other, fixing the position of the adjusting rod 502; pushing the heating plate 404 into the lifting frame 401; and connecting the heating plate 404 and the lifting frame 401 via the signal connector 407. The sealing process is then performed on the side of the packaging bag 3 at the sealing station. While being heat-sealed, the bag passes through conveyor belt 2 and conveying device. The markings on the packaging bag 3 are detected and tracked by monitoring probe 409. After the packaging bag 3 to be heat-sealed moves to below the heating plate 404, the lifting frame 401 is moved downward by lifting device 403, so that the first heating strip 501 and the second heating strip 503 come into contact with the surface of the packaging bag 3, and the bottom of the packaging bag 3 is heat-sealed. Through the above device, the appropriate heat-sealing strip can be selected according to the heat-sealing width of the bag, avoiding the residue of heat-sealing blank positions and improving the stability of the heat-sealing of the bottom of the bag.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bag bottom forming heating device for a bag making machine, comprising a bag making machine (1) and a conveyor belt (2) connected thereto, characterized in that: The surface of the conveyor belt (2) is provided with packaging bags (3), and the surface of the bag making machine (1) is provided with a braking mechanism (4). The braking mechanism (4) includes a lifting frame (401) and a heating plate (404). A monitoring probe (409) is fixedly connected to the surface of the lifting frame (401). The heating plate (404) is provided with a heat sealing mechanism (5) for heat sealing packaging bag (3). The heat sealing mechanism (5) includes a first heating strip (501) and a second heating strip (503). An adjusting rod (502) is slidably connected inside the heating plate (404), and the second heating strip (503) is fixed to the bottom of the adjusting rod (502).

2. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: A support frame (402) is fixedly connected to the surface of the bag making machine (1), and a lifting device (403) is fixedly connected to the middle of the support frame (402), and the output end of the lifting device (403) is fixedly connected to the lifting frame (401).

3. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: The surface of the heating plate (404) is provided with a limiting groove (405), and the inside of the lifting frame (401) is fixedly connected with a limiting slide rod (406), and the limiting groove (405) and the limiting slide rod (406) are slidably connected.

4. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: The lifting frame (401) is internally fixedly connected to a signal connector (407), which is electrically connected to a heating plate (404). The middle part of the lifting frame (401) is rotatably connected to a fixing rod (408) of a limiting heating plate (404).

5. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: The surface of the adjusting rod (502) is fixedly connected to a positioning plate (504), and the positioning plate (504) is movably connected to the heating plate (404). The heating plate (404) is slidably connected to a fixing block (505), and the fixing block (505) abuts against the positioning plate (504).

6. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: The heating plate (404) is internally threaded with an adjusting bolt (506), and the top of the adjusting bolt (506) is rotatably connected to the fixing block (505).

7. The bag bottom forming heating device for a bag making machine according to claim 1, characterized in that: The heating plate (404) has a sliding groove (507) inside, and a sliding block (508) is slidably connected inside the sliding groove (507), and the sliding block (508) is fixedly connected to the adjusting rod (502).

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