Portable food packaging bag forming and sealing integrated machine

Abstract

The utility model discloses a portable food packaging bag forming and sealing integrated machine relates to domestic food packaging and sealing equipment technical field, including the horizontal setting work table and the support of work table lower surface setting, its characterized in that: the lower surface of work table is provided with moving assembly, be provided with two corresponding cooperation's U type movable frame on moving assembly, two U type movable frame outside all are provided with corresponding cooperation's L type support, and one L type support outside is provided with electric telescopic handle no.

Description

Technical Field

[0001] This utility model relates to the technical field of household food packaging sealing equipment, specifically a portable integrated food packaging bag forming and sealing machine. Background Technology

[0002] With the development of society, in addition to large-scale food packaging forming and sealing equipment used in food factories, more and more families are gradually developing a need for packaging the food they make at home. Packaged food is not only convenient to carry when going out, but also can play a role in keeping it fresh to a certain extent. Therefore, there is an urgent need for a portable food packaging bag forming and sealing machine suitable for home use.

[0003] The prior art patent CN209305974U discloses a sealing machine for food packaging, including uprights, a first sliding sleeve, a first heat sealing plate, a second sliding sleeve, a second heat sealing plate, a first cylinder, a second cylinder, and a first foot control switch. Two uprights are arranged vertically side by side. Two first sliding sleeves are respectively fixed to both sides of the first heat sealing plate. The piston rod of the first cylinder moves up and down and is fixedly connected to one of the first sliding sleeves. Two second sliding sleeves are respectively fixed to both sides of the second heat sealing plate. The piston rod of the second cylinder moves up and down and is fixedly connected to one of the second sliding sleeves. The first foot control switch is electrically connected to the first cylinder and the second cylinder.

[0004] However, existing technologies still have shortcomings in use: when using packaging film to package food, since the packaging film is a single layer, it needs to be folded in half before use. After folding, three sides of the packaging film need to be sealed. However, the existing technology can only seal one side at a time and cannot seal all three sides simultaneously, which is very inconvenient to use. When there are many foods waiting to be packaged, a lot of time will be wasted, reducing packaging efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a portable food packaging bag forming and sealing machine that can seal three sides of the packaging film at the same time when sealing the folded packaging film, thereby improving packaging efficiency and effectively solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable food packaging bag forming and sealing integrated machine, comprising a horizontally arranged workbench and support legs arranged on the lower surface of the workbench, characterized in that: a movable component is provided on the lower surface of the workbench, and two corresponding U-shaped movable frames are provided on the movable component. Each of the two U-shaped movable frames has a corresponding L-shaped bracket on its outer side. An electric telescopic rod is horizontally arranged on the outer side of one of the L-shaped brackets via a connecting plate. The telescopic end of the electric telescopic rod passes through a through hole in the L-shaped bracket, and a movable plate is vertically arranged at the inner end of the electric telescopic rod. A through groove is provided on the movable plate, and two corresponding sliding blocks are slidably arranged in the through groove. Fixed blocks corresponding to the two sliding blocks are respectively provided at both ends of the outer side of the movable plate. A sliding post and a bidirectional screw rod are horizontally arranged between the two fixed blocks, passing through the sliding blocks. The two ends of the bidirectional screw rod are connected by two sections with opposite directions. The spiral threads are respectively connected to the two sliders by threads, and the two ends of the bidirectional screw pass through the fixed block. The inner sides of the two sliders are vertically provided with movable heat insulation boxes. The upper inner side of the movable plate is horizontally provided with a fixed heat insulation box that rubs against the top of the two movable heat insulation boxes. The openings of the fixed heat insulation box and the movable heat insulation box facing inward are provided with sealing heat-conducting sheets. The fixed heat insulation box and the movable heat insulation box are both provided with resistance heating sheets that contact the sealing heat-conducting sheets. The top of the movable plate is provided with a temperature control switch. The output end of the temperature control switch is electrically connected to the input end of the resistance heating sheet. Two limit blocks are provided on the outer side of another L-shaped bracket. The inner sides of the two limit blocks are horizontally provided with movable columns that pass through the L-shaped bracket. The inner ends of the two movable columns are vertically provided with movable pressure plates. Springs are movably sleeved on the movable columns, and the springs are located between the movable pressure plates and the L-shaped bracket. The side of the U-shaped movable frame facing the worktable is provided with a packaging film pressing assembly.The output of the PLC controller is electrically connected to the input of the second electric telescopic rod, and the output of the PLC controller is electrically connected to the input of the first electric telescopic rod. When sealing flat foods, since different foods have different widths and the width of the packaging film also varies, to avoid wasting packaging film by using a wider film to package a narrower food, the distance between the two movable heat-insulating boxes needs to be adjusted to accommodate the width of the packaging film. At this time, turning the handwheel clockwise drives the second bidirectional screw to rotate. Since the second bidirectional screw has two sections of spiral threads in opposite directions, the second bidirectional screw drives the two sliders to move in opposite directions along the first sliding column. Conversely, if the handwheel is turned counterclockwise, the double-acting screw two drives the two sliders to move away from each other along the sliding column one. After adjustment, place both ends of the packaging film under the pressure plate, and position the packaging film in the middle position under the pressure plate. At this time, the packaging film is between the pressure plate and the U-shaped movable frame. Turn on the PLC controller, and the PLC controller controls the extension end of the electric telescopic rod two to shorten downwards. The extension end of the electric telescopic rod two drives the pressure plate to move downwards until the pressure plate presses and fixes the packaging film. At this time, the PLC controller controls the motor to work, and the output shaft of the motor drives the double-acting screw one to rotate clockwise. The double-acting screw one drives the U-shaped movable frame to rotate clockwise. The film moves, gradually shaping the packaging film into a V-shape. The food is placed in the center of the V-shaped film until the two U-shaped movable frames are pressed tightly together, at which point the packaging film is fully formed, and the motor stops. At this point, the PLC controller controls the extension end of the electric telescopic rod to extend, which in turn moves the movable plate towards the movable pressure plate. The movable plate then moves the fixed and movable heat insulation boxes, which in turn move the sealing heat-conducting sheet until it presses three sides of the packaging film firmly against the movable pressure plate. The temperature control switch is then turned on, and the switch controls the resistance heating element to gradually heat up to a suitable temperature for sealing the packaging film. Meanwhile, the telescopic end of the electric telescopic rod gradually extends, causing the pressure plate to move upward until the pressure plate is no longer in contact with the packaging film. The resistance heating element transfers heat to the sealing heat-conducting sheet. After the sealing heat-conducting sheet heats and seals the three sides of the packaging film simultaneously, the temperature control switch automatically turns off, and the packaging film is formed into a packaging bag and completely sealed. At this time, the PLC controller controls the motor to work, and the output shaft of the motor drives the bidirectional screw one to rotate counterclockwise. The bidirectional screw one drives the U-shaped movable frame to move in a direction away from each other until the sealing heat-conducting sheet and the movable pressure plate are completely separated from the formed packaging film. The forming and sealing of the packaging film is then completed, making it easy to carry and suitable for home use.

[0007] Furthermore, two horizontal sliding pillars are installed on the inner side of one of the L-shaped brackets, penetrating both ends of the movable plate. These sliding pillars improve the stability of the movable plate during movement.

[0008] Furthermore, the moving component comprises mounting blocks at both ends of the lower surface of the worktable, with two U-shaped movable frames positioned between the two mounting blocks. A guide post and a bidirectional screw are horizontally arranged between the two mounting blocks, penetrating the lower part of the U-shaped movable frames. The two ends of the bidirectional screw are threaded to the two U-shaped movable frames via two sections of oppositely oriented helical threads. A drive component is mounted on one of the mounting blocks. The moving component can drive the two U-shaped movable frames to move towards each other or away from each other, and the drive component provides power for the rotation of the bidirectional screw.

[0009] Furthermore, the drive assembly is a motor horizontally mounted on the outside of one of the mounting blocks via a motor mounting plate. The output shaft of the motor is fixedly connected to the center position of the outer end of a bidirectional screw. A PLC controller is mounted on the mounting block, with its output terminal electrically connected to the input terminal of the motor and its input terminal electrically connected to the output terminal of an external power supply. The PLC controller can control the operation of the motor, and the motor's output shaft can drive the bidirectional screw to rotate.

[0010] Furthermore, the packaging film pressing assembly is a mounting plate disposed on the side of the U-shaped movable frame facing the worktable. A second electrically operated telescopic rod is vertically mounted on the mounting plate. The telescopic end of the second electric telescopic rod passes through a through hole in the upper part of the U-shaped movable frame, and a pressing plate corresponding to the upper surface of the U-shaped movable frame is horizontally disposed at the end of the telescopic end of the second electric telescopic rod. The PLC controller can control the extension and retraction of the second electric telescopic rod, and the telescopic end of the second electric telescopic rod can drive the pressing plate to move up and down. The mounting plate can support the second electric telescopic rod.

[0011] Furthermore, a handwheel is provided at the outer end of the second bidirectional screw, and the center of the handwheel coincides with the center of the second bidirectional screw. The handwheel increases the rotation radius of the second bidirectional screw, making it easier to rotate.

[0012] Based on the above technical solution, the beneficial effects achieved by this portable food packaging bag forming and sealing integrated machine through practical application are as follows: 1. This utility model utilizes the cooperation between a fixed heat insulation box and two movable heat insulation boxes, which can perfectly correspond to three sides of the packaging film to be sealed. During sealing, the sealing heat-conducting plates on the fixed heat insulation box and the two movable heat insulation boxes press the packaging film tightly onto the movable pressure plate. The heat is transferred to the sealing heat-conducting plates by the resistance heating plate, so that the three sides of the packaging film can be heated and sealed simultaneously, saving a lot of time and improving packaging efficiency.

[0013] 2. This utility model utilizes the cooperation between the bidirectional screw two, the slider, the sliding column one, and the two movable heat insulation boxes. By rotating the bidirectional screw two clockwise or counterclockwise, the two sliders can be driven to move towards or away from each other along the sliding column one. The two sliders can then drive the two movable heat insulation boxes to move towards or away from each other. This allows for the selection of packaging films of appropriate width according to different food widths, avoiding the waste of packaging film caused by using a wider packaging film to package a narrower food. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a left-view stereoscopic structural diagram of the present invention.

[0016] Figure 3 This is a right-view stereoscopic structural diagram of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 5 This is a side view of the three-dimensional structure of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the present invention in use.

[0020] In the diagram: 1-Workbench, 2-Support leg, 3-Mounting block, 4-PLC controller, 5-Bidirectional screw one, 6-Motor, 7-Electric telescopic rod one, 8-Bidirectional screw two, 9-Slider, 10-Fixing block, 11-Sliding column one, 12-Temperature control switch, 13-Fixed heat insulation box, 14-Handwheel, 15-Movable heat insulation box, 16-Sealing heat-conducting sheet, 17-Movable plate, 18-Sliding column two, 19-Movable pressure plate, 20-Spring, 21-L-shaped bracket, 22-Limit block, 23-Movable column, 24-Pressure plate, 25-Electric telescopic rod two, 26-Mounting plate, 27-U-shaped movable frame, 28-Through groove, 29-Guide column. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6This embodiment provides a technical solution: a portable food packaging bag forming and sealing integrated machine, including a horizontally arranged workbench 1 and support legs 2 arranged on the lower surface of the workbench 1. The workbench 1 has a movable component on its lower surface, with two corresponding U-shaped movable frames 27 on the movable component. Each of the two U-shaped movable frames 27 has a corresponding L-shaped bracket 21 on its outer side. One of the L-shaped brackets 21 has a horizontally arranged electric telescopic rod 7 on its outer side via a connecting plate. The telescopic end of the electric telescopic rod 7 passes through a through hole in the L-shaped bracket 21, and a movable plate 17 is vertically arranged at the inner end of the electric telescopic rod 7. The movable plate 17 has a through groove 28, within which two corresponding sliding blocks 9 are slidably arranged. The two outer ends of the movable plate 17 are respectively provided with fixing blocks 10 corresponding to the two sliding blocks 9. A sliding post 11 penetrating the sliding blocks 9 and a bidirectional screw 8 are horizontally arranged between the two fixing blocks 10. The two ends of the bidirectional screw 8 are threaded to the two sliding blocks 9 through two sections of opposite spiral threads. Connecting the two ends of the bidirectional screw 8 through the fixed block 10, the inner sides of the two sliders 9 are vertically provided with movable heat insulation boxes 15, and the upper inner side of the movable plate 17 is horizontally provided with a fixed heat insulation box 13 that rubs against the top of the two movable heat insulation boxes 15. A sealing heat-conducting plate 16 is provided at the inward opening of the fixed heat insulation box 13 and the movable heat insulation box 15, and both the fixed heat insulation box 13 and the movable heat insulation box 15 have resistance heating elements that contact the sealing heat-conducting plate 16 inside. A temperature control is provided on the top of the movable plate 17. The output terminal of the temperature control switch 12 is electrically connected to the input terminal of the resistance heating element. Two limit blocks 22 are provided on the outer side of another L-shaped bracket 21. Movable columns 23 that penetrate the L-shaped bracket 21 are horizontally provided on the inner side of the two limit blocks 22. Movable pressure plates 19 are vertically provided on the inner ends of the two movable columns 23. Springs 20 are movably sleeved on the movable columns 23, and the springs 20 are located between the movable pressure plates 19 and the L-shaped bracket 21. A packaging film pressing assembly is provided on the side of the U-shaped movable frame 27 facing the workbench 1.The output of PLC controller 4 is electrically connected to the input of electric telescopic rod 25, and the output of PLC controller 4 is electrically connected to the input of electric telescopic rod 7. When sealing flat food, since different foods have different widths and the width of the packaging film also varies, to avoid wasting packaging film by using a wider packaging film to package a narrower food, the distance between the two movable heat-insulating boxes 15 needs to be adjusted to accommodate the width of the packaging film. At this time, turning the handwheel 14 clockwise drives the bidirectional screw 8 to rotate. Since the bidirectional screw 8 has two sections of spiral threads in opposite directions, the bidirectional screw 8 drives the two sliders 9 to move towards each other along the sliding column 11. Conversely, if the rotation is counterclockwise... Turning the handwheel 14 causes the double-screw 8 to drive the two sliders 9 to move away from each other along the sliding column 11. After adjustment, place both ends of the packaging film under the pressure plate 24 and position the packaging film in the middle below the pressure plate 24. At this time, the packaging film is between the pressure plate 24 and the U-shaped movable frame 27. Turn on the PLC controller 4, which controls the telescopic end of the electric telescopic rod 25 to shorten downward. The telescopic end of the electric telescopic rod 25 drives the pressure plate 24 to move downward until the pressure plate 24 presses and fixes the packaging film. At this time, the PLC controller 4 controls the motor 6 to work. The output shaft of the motor 6 drives the double-screw 5 to rotate clockwise, and the double-screw 5 drives the U-shaped movable frame 27 to move towards each other. The movement causes the packaging film to gradually become V-shaped. The food is placed in the center of the V-shaped packaging film until the two U-shaped movable frames 27 are pressed tightly together, at which point the packaging film is formed and the motor 6 stops working. At this time, the PLC controller 4 controls the extension end of the electric telescopic rod 7 to extend. The extension end of the electric telescopic rod 7 drives the movable plate 17 to move towards the movable pressure plate 19. The movable plate 17 drives the fixed heat insulation box 13 and the movable heat insulation box 15 to move. The fixed heat insulation box 13 and the movable heat insulation box 15 drive the sealing heat-conducting sheet 16 to move until the sealing heat-conducting sheet 16 presses three sides of the packaging film tightly onto the movable pressure plate 19. The temperature control switch 12 is turned on, and the temperature control switch 12 controls the resistance heating element to gradually heat up to a suitable temperature to heat and seal the packaging film. At the same time, the telescopic end of the electric telescopic rod 25 gradually extends, driving the pressing plate 24 to move upward until the pressing plate 24 is no longer in contact with the packaging film. The resistance heating element transfers heat to the sealing heat-conducting sheet 16. After the sealing heat-conducting sheet 16 heats and seals the three sides of the packaging film simultaneously, the temperature control switch 12 automatically closes, and the packaging film is formed into a packaging bag and completely sealed. At this time, the PLC controller 4 controls the motor 6 to work. The output shaft of the motor 6 drives the bidirectional screw 5 to rotate counterclockwise. The bidirectional screw 5 drives the U-shaped movable frame 27 to move away from each other until the sealing heat-conducting sheet 16 and the movable pressing plate 19 are completely separated from the formed packaging film. The forming and sealing of the packaging film is then completed, making it easy to carry and suitable for home use.

[0023] Furthermore, two horizontal sliding columns 18 are horizontally arranged on the inner side of one of the L-shaped brackets 21, penetrating both ends of the movable plate 17. The sliding columns 18 can improve the stability of the movable plate 17 when it moves.

[0024] Furthermore, the moving component consists of mounting blocks 3 located at both ends of the lower surface of the worktable 1, with two U-shaped movable frames 27 positioned between the two mounting blocks 3. A guide post 29 and a bidirectional screw 5 are horizontally arranged between the two mounting blocks 3, penetrating the lower part of the U-shaped movable frames 27. The two ends of the bidirectional screw 5 are threaded to the two U-shaped movable frames 27 via two sections of oppositely oriented helical threads. A drive component is mounted on one of the mounting blocks 3. The moving component can drive the two U-shaped movable frames 27 to move towards each other or away from each other, and the drive component provides power for the rotation of the bidirectional screw 5.

[0025] Furthermore, the drive assembly consists of a motor 6 horizontally mounted on the outside of one of the mounting blocks 3 via a motor mounting plate. The output shaft of the motor 6 is fixedly connected to the center position of the outer end of the bidirectional screw 5. A PLC controller 4 is mounted on the mounting block 3. The output terminal of the PLC controller 4 is electrically connected to the input terminal of the motor 6, and the input terminal of the PLC controller 4 is electrically connected to the output terminal of an external power supply. The PLC controller 4 can control the operation of the motor 6, and the output shaft of the motor 6 can drive the bidirectional screw 5 to rotate.

[0026] Furthermore, the packaging film pressing assembly is a mounting plate 26 located on the side of the U-shaped movable frame 27 facing the worktable 1. A second electric telescopic rod 25 is vertically mounted on the mounting plate 26. The telescopic end of the second electric telescopic rod 25 passes through a through hole in the upper part of the U-shaped movable frame 27, and a pressing plate 24 corresponding to and cooperating with the upper surface of the U-shaped movable frame 27 is horizontally mounted at the telescopic end of the second electric telescopic rod 25. The PLC controller 4 can control the telescopic extension and retraction of the second electric telescopic rod 25. The telescopic end of the second electric telescopic rod 25 can drive the pressing plate 24 to move up and down, and the mounting plate 26 can support the second electric telescopic rod 25.

[0027] Furthermore, a handwheel 14 is provided at the outer end of the second bidirectional screw 8, and the center of the handwheel 14 coincides with the center of the second bidirectional screw 8. The handwheel 14 increases the rotation radius of the second bidirectional screw 8, making it easier to rotate.

[0028] The working principle of the portable food packaging bag forming and sealing machine provided by this utility model is as follows: When sealing flat foods, since different foods have different widths and packaging films also vary, to avoid wasting packaging film by using a wider film to package a narrower food, the distance between the two movable heat-insulating boxes 15 needs to be adjusted to accommodate the width of the packaging film. At this time, turning the handwheel 14 clockwise rotates the double-ended screw 8. Because the double-ended screw 8 has two sections of opposite spiral threads, it drives the two sliders 9 to move towards each other along the sliding post 11. Conversely, turning the handwheel 14 counterclockwise moves the two sliders 9 away from each other along the sliding post 11. After adjustment, place both ends of the packaging film under the pressure plate 24, positioning the film in the middle of the area below the pressure plate 24. At this point, the packaging film is positioned between the pressure plate 24 and the U-shaped movable frame 27. Turn on the PLC controller 4. The PLC controller 4 controls the telescopic end of the electric telescopic rod 25 to shorten downwards. The telescopic end of the electric telescopic rod 25 drives the pressure plate 24 downwards until the pressure plate 24 presses and fixes the packaging film. At this time, the PLC controller 4 controls the motor 6 to work. The output shaft of the motor 6 drives the bidirectional screw 5 to rotate clockwise. The bidirectional screw 5 drives the U-shaped movable frame 27 to move in opposite directions, thus gradually changing the packaging film into a V-shape. Place the food in the V-shape. The packaging film is positioned in the middle until the two U-shaped movable frames 27 are tightly pressed together, at which point the packaging film is formed and the motor 6 stops working. At this time, the PLC controller 4 controls the extension end of the electric telescopic rod 7 to extend. The extension end of the electric telescopic rod 7 drives the movable plate 17 to move towards the movable pressure plate 19. The movable plate 17 drives the fixed heat insulation box 13 and the movable heat insulation box 15 to move. The fixed heat insulation box 13 and the movable heat insulation box 15 drive the sealing heat-conducting sheet 16 to move until the sealing heat-conducting sheet 16 presses three sides of the packaging film tightly onto the movable pressure plate 19. The temperature control switch 12 is turned on, and the temperature control switch 12 controls the resistance heating element to gradually heat up to a suitable temperature for heating and sealing the packaging film. At the same time, the telescopic end of the electric telescopic rod 25 gradually extends, driving the pressing plate 24 to move upward until the pressing plate 24 is no longer in contact with the packaging film. The resistance heating element transfers heat to the sealing heat-conducting sheet 16. After the sealing heat-conducting sheet 16 heats and seals the three sides of the packaging film at the same time, the temperature control switch 12 automatically closes. The packaging film is formed into a packaging bag and completely sealed. At this time, the PLC controller 4 controls the motor 6 to work. The output shaft of the motor 6 drives the bidirectional screw 5 to rotate counterclockwise. The bidirectional screw 5 drives the U-shaped movable frame 27 to move away from each other until the sealing heat-conducting sheet 16 and the movable pressing plate 19 are completely separated from the formed packaging film, thus completing the forming and sealing of the packaging film.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A portable food packaging bag forming and sealing integrated machine, comprising a horizontally arranged worktable (1) and support legs (2) arranged on the lower surface of the worktable (1), characterized in that: The lower surface of the workbench (1) is provided with a moving component, on which two corresponding U-shaped movable frames (27) are provided. Each of the two U-shaped movable frames (27) is provided with a corresponding L-shaped bracket (21) on its outer side. An electric telescopic rod (7) is horizontally provided on the outer side of one of the L-shaped brackets (21) through a connecting plate. The telescopic end of the electric telescopic rod (7) passes through a through hole opened on the L-shaped bracket (21), and a movable plate (17) is vertically provided on the inner end of the electric telescopic rod (7). A through groove is provided on the movable plate (17). (28) Two corresponding sliding blocks (9) are slidably arranged in the through groove (28). Fixed blocks (10) corresponding to the two sliding blocks (9) are respectively arranged at both ends of the outer side of the movable plate (17). A sliding post (11) penetrating the sliding block (9) and a double-ended screw (8) are horizontally arranged between the two fixed blocks (10). The two ends of the double-ended screw (8) are threaded to the two sliding blocks (9) respectively through two sections of spiral threads in opposite directions. The two ends of the double-ended screw (8) penetrate the fixed blocks (10). The inner sides of the two sliding blocks (9) are vertically connected to the two sliding blocks (9). A movable heat insulation box (15) is provided. A fixed heat insulation box (13) is horizontally provided on the upper inner side of the movable plate (17) and rubs against the top of the two movable heat insulation boxes (15). A sealing heat-conducting plate (16) is provided at the opening on the inner side of the fixed heat insulation box (13) and the movable heat insulation box (15). A resistance heating plate that contacts the sealing heat-conducting plate (16) is provided inside both the fixed heat insulation box (13) and the movable heat insulation box (15). A temperature control switch (12) is provided on the top of the movable plate (17). The output terminal of the temperature control switch (12) Electrically connected to the input end of the resistance heating element, another L-shaped bracket (21) is provided with two limiting blocks (22) on the outside, and the inner side of the two limiting blocks (22) is provided with a movable column (23) that passes through the L-shaped bracket (21). The inner end of the two movable columns (23) is provided with a movable pressure plate (19). A spring (20) is movably sleeved on the movable column (23), and the spring (20) is located between the movable pressure plate (19) and the L-shaped bracket (21). The U-shaped movable frame (27) is provided with a packaging film pressing assembly on the side facing the workbench (1).

2. The portable food packaging bag forming and sealing machine according to claim 1, characterized in that: Two sliding columns (18) are horizontally arranged on the inner side of one of the L-shaped brackets (21) through both ends of the movable plate (17).

3. The portable food packaging bag forming and sealing integrated machine according to claim 1, characterized in that: The moving component is a mounting block (3) set at both ends of the lower surface of the workbench (1), and two U-shaped movable frames (27) are located between the two mounting blocks (3). A guide post (29) and a bidirectional screw (5) are horizontally arranged between the two mounting blocks (3) and penetrating the lower part of the U-shaped movable frame (27). The two ends of the bidirectional screw (5) are threaded to the two U-shaped movable frames (27) through two sections of spiral threads in opposite directions. A drive component is set on one of the mounting blocks (3).

4. The portable food packaging bag forming and sealing integrated machine according to claim 3, characterized in that: The drive assembly is a motor (6) that is horizontally mounted on the outside of one of the mounting blocks (3) via a motor mounting plate. The output shaft of the motor (6) is fixedly connected to the center of the outer end of the bidirectional screw (5). A PLC controller (4) is provided on the mounting block (3). The output end of the PLC controller (4) is electrically connected to the input end of the motor (6). The input end of the PLC controller (4) is electrically connected to the output end of the external power supply.

5. The portable food packaging bag forming and sealing integrated machine according to claim 1, characterized in that: The packaging film pressing assembly is a mounting plate (26) set on the side of the U-shaped movable frame (27) facing the workbench (1). An electric telescopic rod (25) is vertically set on the mounting plate (26). The telescopic end of the electric telescopic rod (25) passes through the through hole at the top of the U-shaped movable frame (27), and a pressing plate (24) corresponding to the upper surface of the U-shaped movable frame (27) is horizontally set at the end of the telescopic end of the electric telescopic rod (25).

6. The portable food packaging bag forming and sealing integrated machine according to claim 1, characterized in that: The outer end of the bidirectional screw 2 (8) is provided with a handwheel (14), and the center of the handwheel (14) coincides with the center of the bidirectional screw 2 (8).

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