An automatic film sealer

Abstract

The utility model provides a kind of automatic film sealing machine, including sealing machine body and the conveying assembly located sealing machine body one side, conveying assembly includes rack, driving roller, support plate and conveyer belt, two driving rollers are respectively rotationally connected in the both ends of rack, conveyer belt is supported and tensioned by two driving rollers, support plate is fixed on rack and located the inside of conveyer belt, the inner wall of support plate supports conveyer belt, support platform is fixedly connected with stand along the height direction of itself, connecting groove is set on the side wall of guide sleeve, stand is fixedly connected with the friction strip passing through connecting groove, the height direction of friction strip is parallel with the height direction of stand, the side wall of rack is rotationally connected with locking piece, the first friction block and the second friction block of relatively arranged are slidably connected on the rack, locking piece rotates and makes the first friction block and the second friction block respectively with the two sides of friction strip abutting tightly by conducting component, reach the purpose of improving the sealing quality and appearance of product.

Description

Technical Field

[0001] This utility model relates to sealing machines, and more particularly to an automatic film sealing machine. Background Technology

[0002] In the modern product packaging industry, sealing machines, as key equipment for heat-sealing flexible packaging containers such as plastic bags, are widely used. To meet the demands of industrial production for efficiency and automation, many sealing machines integrate conveying systems to achieve continuous and efficient sealing operations.

[0003] Chinese utility model patent CN212951415U discloses a sealing machine comprising a sealing assembly and a conveying assembly. The key feature of this design is the innovative addition of an air-cooling system to the sealing assembly. Its working principle is as follows: after the plastic bag opening is heat-sealed by the heated sealing tape, it is immediately conveyed to the air outlet of the air-cooling system. Here, cold air forcibly and rapidly cools and shapes the still-hot-melted sealing area. This effectively prevents unnecessary stretching or deformation at the seal due to residual heat and clamping force, thus ensuring a straight and secure seal line and improving sealing quality.

[0004] However, those skilled in the art have found in actual production practice that the aforementioned prior art still has significant design flaws when applied to packaging specific items. In a typical production process, operators need to place plastic bags filled with items onto a conveyor assembly and guide the bag opening into a sealing assembly. The key issue is that the height of the sealing strip on the sealing machine is usually fixed. However, after the plastic bag is filled with items, its height varies significantly depending on the quantity, volume, and stacking method of the items inside.

[0005] Specifically, when the bag contains a large amount of material or has a large volume, the bag will bulge out, causing the actual height of the bag opening to exceed the preset height of the sealing assembly. In this situation, operators have to manually press or tilt the bag to insert the opening between the two sealing strips. This temporary and non-standard operating method can easily cause wrinkles or misalignment of the bag opening when it enters the sealing strip, ultimately resulting in a crooked sealing line, inconsistent width, or even incomplete sealing, seriously affecting the sealing quality and appearance of the final product. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an automatic film sealing machine to improve the sealing quality and appearance of products.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: an automatic film sealing machine, including a sealing machine body and a conveying assembly located on one side of the sealing machine body, and a support platform. The conveying assembly includes a frame, drive rollers, a support plate, and a conveyor belt. Two drive rollers are rotatably connected to both ends of the frame. The conveyor belt is supported and tensioned by the two drive rollers. The support plate is fixed on the frame and located inside the conveyor belt. The support plate supports the inner wall of the conveyor belt. A column is fixedly connected to the support platform along its height direction. A guide sleeve is fixedly connected to the frame and slidably connected to the column. A connecting groove is opened on the side wall of the guide sleeve. A friction strip passing through the connecting groove is fixedly connected to the column. The height direction of the friction strip is parallel to the height direction of the column. A locking member is rotatably connected to the side wall of the frame. A first friction block and a second friction block are slidably connected to the frame. The locking member rotates and, through a transmission assembly, causes the first friction block and the second friction block to abut against the two sides of the friction strip, respectively.

[0008] To achieve the above technical solution, the operator loosens the locking mechanism, separating the first and second friction blocks from the friction strip. This allows the frame to slide along the guide sleeve on the column to adjust its height. After adjusting to the desired height, the operator rotates the locking mechanism, using the transmission component to drive the first and second friction blocks to clamp the two sides of the friction strip, thus securing the frame in place. This solves the problem of traditional sealing machines having difficulty aligning the bag opening with the sealing tape due to bag bulging when handling packaging bags of different heights. Through the height-adjustable conveyor assembly, the operator can precisely adjust the relative height between the conveyor belt and the sealing tape according to the actual height of the contents inside the bag. This ensures that the bag opening remains straight and wrinkle-free when entering the sealing area, significantly improving sealing quality and avoiding skewed, inconsistent, or incomplete seals. This, in turn, improves the overall appearance and sealing reliability of the product and optimizes production efficiency.

[0009] In a preferred embodiment of this utility model, the conductive assembly includes a first threaded segment, a second threaded segment, a slide rod, a first slider, and a second slider. The first threaded segment and the second threaded segment are both fixed to the locking member and are coaxially arranged. The threads of the first threaded segment and the threads of the second threaded segment rotate in opposite directions. The slide rod is fixed to the frame, and the axis of the slide rod is parallel to the axis of the locking member. The first slider is slidably connected to the slide rod and threadedly connected to the first threaded segment. The second slider is slidably connected to the slide rod and threadedly connected to the second threaded segment. The first friction block is fixed to the first slider, and the second friction block is fixed to the second slider. The first slider and the second slider are located on both sides of the friction strip, respectively.

[0010] To achieve the above technical solution, when the operator rotates the locking component, the first and second threaded sections, which are coaxial and have opposite thread directions, will rotate synchronously. Since the first and second sliders are threaded onto their respective threaded sections and slidably connected to the slide rod, they move synchronously towards or away from each other on the slide rod. Because the first and second friction blocks are fixed to their respective sliders, they will move towards or away from the friction strip at the same speed. When the locking component is tightened, the first and second friction blocks will firmly press against both sides of the friction strip, thus stably locking the conveying assembly at the required height. A simple rotational operation achieves bidirectional synchronous clamping force, ensuring the stability and reliability of the locking process. This symmetrical and uniform clamping force effectively prevents the conveying assembly from shaking or shifting position during operation, thus ensuring the continuity and accuracy of the sealing process.

[0011] As a preferred embodiment of this utility model, there are two columns, which are respectively close to the two ends of the support platform, and each column is connected to a friction strip.

[0012] The above technical solution significantly improves the stability of the conveyor assembly after height adjustment. While single-point or single-strip friction locking may cause slight wobbling or misalignment during equipment operation, the symmetrical clamping mechanism of double columns and double friction strips provides uniform and powerful support and locking force simultaneously at two points. This eliminates potential wobbling and deformation, ensuring that the conveyor assembly maintains stable and precise alignment at any adjusted height.

[0013] As a preferred embodiment of this utility model, a placement plate is provided on the upper surface of the frame. The placement plate is located above the conveyor belt and at one end of the frame. The side wall of the placement plate is bent to form a connecting piece, which is fixed to the side wall of the frame.

[0014] The placement board, designed to achieve the above technical solution, provides operators with a convenient and stable pre-placement area. Before sealing the plastic bag, operators can place it stably on the placement board.

[0015] As a preferred embodiment of this utility model, the sealing machine body includes a main unit, a sealing component, and a cooling component. The sealing component and the cooling component are both disposed on the main unit. A crossbar is fixedly connected to the side wall of the main unit, and a slide tube is fixedly connected to the side wall of the support platform. The crossbar is slidably connected in the slide tube, and a fixing bolt is threadedly connected to the side wall of the slide tube. The fixing bolt is used to abut against the outer wall of the crossbar.

[0016] To achieve the above technical solution, a crossbar is fixedly connected to the side wall of the main unit, while a sliding tube is fixedly connected to the side wall of the support platform. This crossbar is slidably connected inside the sliding tube. When fixation is required, a threaded fixing bolt on the side wall of the sliding tube screws in, pressing against the outer wall of the crossbar, thereby fixing the entire support platform. The sliding connection of the crossbar in the sliding tube allows the conveying component to be finely adjusted horizontally relative to the sealing component. This is crucial for adapting to film bags of different sizes and ensuring precise alignment of the sealing position. The simple operation of the fixing bolt enables reliable locking, ensuring the stability and positioning accuracy of the conveying component during operation. This not only improves the versatility and flexibility of the equipment but also simplifies adjustments and switching in the production process, thereby improving overall operational efficiency and convenience, and ensuring a more precise sealing effect.

[0017] In a preferred embodiment of this utility model, the sealing component includes a heating wire, a first rotating wheel, a second rotating wheel, a heating block, a first anti-adhesion strip, and a second anti-adhesion strip. The two first rotating wheels are rotatably connected to the main unit and rotate in the same direction. The two second rotating wheels are rotatably connected to the main unit and rotate in the same direction. The first rotating wheels and the second rotating wheels rotate in opposite directions. The first anti-adhesion strip is tensioned by the two first rotating wheels, and the second anti-adhesion strip is tensioned by the two second rotating wheels. The heating block is fixed to the main unit. The heating wire is used to heat the heating block. A heating groove is formed on the side wall of the heating block. The first anti-adhesion strip and the second anti-adhesion strip are used to contact the inner wall of the heating groove. The first anti-adhesion strip and the second anti-adhesion strip are arranged opposite to each other and form a sealing area between the first anti-adhesion strip and the second anti-adhesion strip.

[0018] To achieve the above technical solution, the combination of heating block and heating wire ensures the required sealing temperature. The first and second anti-stick tapes move in opposite directions to form a sealing area, allowing the plastic bag to pass smoothly through while being clamped and subjected to continuous and uniform heat, achieving a rapid and secure heat-sealing. The first and second anti-stick tapes also prevent molten plastic from adhering to the heating block.

[0019] In a preferred embodiment of this utility model, the cooling component includes a heat sink, heat dissipation holes, a fan, and a heat sink fin. The heat sink is fixed to the host unit and has a heat dissipation groove. The length direction of the heat dissipation groove is collinear with the length direction of the heating groove. The first anti-adhesion tape and the second anti-adhesion tape pass through the heating groove and contact the inner wall of the heat dissipation groove. The heat sink has multiple heat dissipation holes. The heat sink fin is fixed to the side of the heat sink that is away from the heat dissipation groove. The fan is fixed to the host unit and is arranged opposite to the heat sink fin.

[0020] To achieve the above technical solution, when the first and second anti-stick tapes, still warm from the heat-sealed bag opening, enter the heat dissipation tank, the heat dissipation block immediately absorbs the heat and performs initial heat dissipation through its heat dissipation holes and fins. More importantly, the strong airflow generated by the fan blows directly onto the heat dissipation fins, creating forced convection cooling and rapidly removing heat. This efficient cooling mechanism effectively prevents unnecessary stretching or deformation at the seal due to residual heat and clamping force, ensuring the seal line is straight and firmly set in the shortest possible time. This greatly improves sealing quality and appearance, accelerates the packaging process, and increases production efficiency.

[0021] In a preferred embodiment of this utility model, a guide plate is fixedly connected to the main unit, the guide plate is located between the first anti-adhesion strip and the second anti-adhesion strip, and the guide plate is close to the second rotating wheel.

[0022] By implementing the above technical solution, the guide plate, located between the first and second anti-stick tapes and close to the second roller, effectively guides the bag opening smoothly into or out of the sealing area. This not only improves the smoothness and stability of the sealing process but also reduces sealing defects caused by unstable bag openings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0024] Figure 2 To illustrate the position of the crossbar;

[0025] Figure 3 A schematic diagram illustrating the positions of the two drive rollers;

[0026] Figure 4 To illustrate the structural diagram of the column;

[0027] Figure 5 for Figure 4 Enlarged view of point A;

[0028] Figure 6 To illustrate the structural diagram of the conductive component;

[0029] Figure 7 To illustrate the structural diagram of the heating block;

[0030] Figure 8 This is a schematic diagram illustrating the structure of the fan.

[0031] Reference numerals: 1. Frame; 2. Drive roller; 3. Support plate; 4. Conveyor belt; 5. Support platform; 6. Column; 7. Guide sleeve; 8. Connecting groove; 9. Placement groove; 10. Friction strip; 11. Locking component; 12. First friction block; 13. Second friction block; 14. Conducting assembly; 15. First threaded section; 16. Second threaded section; 17. Slide bar; 18. First slider; 19. Second slider; 20. Placement plate; 21. Connecting piece; 22. Crossbar; 23. Slide tube; 24. Fixing bolt; 25. Sealing component; 26. Heating wire; 27. First rotating wheel; 28. Second rotating wheel; 29. ​​Heating block; 30. First anti-stick tape; 31. Second anti-stick tape; 32. Cooling component; 33. Heat sink; 34. Heat dissipation hole; 35. Fan; 36. Heat sink; 37. Guide plate; 38. Main unit; 39. Heating groove; 40. Heat dissipation groove. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0033] An automatic film sealing machine includes a sealing machine body and a conveying assembly located on one side of the sealing machine body. The conveying assembly includes a frame 1, a drive roller 2, a support plate 3, and a conveyor belt 4.

[0034] Two drive rollers 2 are rotatably connected to both ends of the frame 1. The drive rollers 2 are driven by servo motors (not shown in the figure) which are fixed to the frame 1. The conveyor belt 4 is supported and tensioned by the two drive rollers 2. When the drive rollers 2 rotate, the conveyor belt 4 can rotate due to friction.

[0035] The support plate 3 is fixed to the frame 1 and located inside the conveyor belt 4, so that the support plate 3 provides good support for the inner wall of the conveyor belt 4. The support platform 5 is located inside the frame 1, and the support platform 5 is fixedly connected to the column 6 along its own height direction. There are two columns 6, which are respectively close to the two ends of the support platform 5.

[0036] A guide sleeve 7 is fixedly connected to the frame 1 and slidably connected to the column 6. Both the guide sleeve 7 and the column 6 are vertically arranged. A connecting groove 8 is formed on the side wall of the guide sleeve 7, and a placement groove 9 is formed in the middle of the column 6. A friction strip 10 passing through the connecting groove 8 is fixedly connected in the placement groove 9. The height direction of the friction strip 10 is parallel to the height direction of the column 6. Each column 6 has one friction strip 10.

[0037] A locking member 11 is rotatably connected to the side wall of the frame 1. A first friction block 12 and a second friction block 13 are slidably connected to the frame 1. The locking member 11 rotates and, through the transmission component 14, causes the first friction block 12 and the second friction block 13 to abut against the two sides of the friction strip 10 respectively. Both the first friction block 12 and the second friction block 13 are disc-shaped.

[0038] The transmission assembly 14 includes a first threaded section 15, a second threaded section 16, a slide rod 17, a first slider 18, and a second slider 19. The first threaded section 15 and the second threaded section 16 are both fixed to the locking member 11 and are coaxially arranged. The outer diameters of the first threaded section 15, the second threaded section 16, and the locking member 11 are equal. The threads of the first threaded section 15 and the second threaded section 16 rotate in opposite directions.

[0039] The slide bar 17 is fixed to the frame 1, and its axis is parallel to the axis of the locking member 11. The first slider 18 is slidably connected to the slide bar 17 and threadedly connected to the first threaded section 15; the second slider 19 is slidably connected to the slide bar 17 and threadedly connected to the second threaded section 16. The first friction block 12 is fixed to the first slider 18, and the second friction block 13 is fixed to the second slider 19. The first slider 18 and the second slider 19 are located on both sides of the friction strip 10.

[0040] When the locking member 11 rotates in the forward direction, the first slider 18 and the second slider 19 move synchronously towards the friction strip 10 through the transmission action of the first threaded section 15 and the second threaded section 16, so that the first friction block 12 and the second friction block 13 abut against both sides of the friction strip 10 respectively. Through the self-locking property of the threads, the first slider 18 and the second slider 19 are self-positioned. Similarly, when the locking member 11 rotates in the reverse direction, the first friction block 12 and the second friction block 13 can be separated from the friction strip 10.

[0041] The friction strip 10 is made of 304 stainless steel, and the first friction block 12 and the second friction block 13 are both made of nylon.

[0042] A stainless steel placement plate 20 is provided on the upper surface of the frame 1. The placement plate 20 is located above the conveyor belt 4 and at one end of the frame 1. The side wall of the placement plate 20 is bent downward to form a connecting piece 21. The connecting piece 21 is fixed to the side wall of the frame 1 by screws to fix the placement plate 20.

[0043] The sealing machine body includes a main unit 38, a sealing component 25, and a cooling component 32. Both the sealing component 25 and the cooling component 32 are mounted on the main unit 38. A horizontal crossbar 22 is fixedly connected to the side wall of the main unit 38. A sliding tube 23 is fixedly connected to the side wall of the support platform 5, and the crossbar 22 is slidably connected within the sliding tube 23. A fixing bolt 24 is threaded onto the side wall of the sliding tube 23, and the fixing bolt 24 is used to abut against the outer wall of the crossbar 22. Two crossbars 22 are provided, one near each end of the main unit 38.

[0044] The sealing component 25 includes a heating wire 26, a first rotating wheel 27, a second rotating wheel 28, a heating block 29, a first anti-stick tape 30, and a second anti-stick tape 31. The two first rotating wheels 27 are rotatably connected to the main unit 38 and rotate in the same direction. The two second rotating wheels 28 are rotatably connected to the main unit 38 and rotate in the same direction. The two first rotating wheels 27 and the two second rotating wheels 28 are at the same horizontal level. The second rotating wheels 28 are located below the first rotating wheels 27. The first rotating wheels 27 and the second rotating wheels 28 rotate in opposite directions.

[0045] The first anti-adhesion tape 30 is tensioned by two first rotating rollers 27, and the second anti-adhesion tape 31 is tensioned by two second rotating rollers 28. The first rotating rollers 27 and 28 are each driven by a servo motor. When the first rotating rollers 27 and 28 rotate, the first anti-adhesion tape 30 and the second anti-adhesion tape 31 can rotate synchronously and in opposite directions. Both the first anti-adhesion tape 30 and the second anti-adhesion tape 31 are made of Teflon-coated fiberglass tape. The first rotating rollers 27 and 28 have the same outer diameter and rotate at the same speed.

[0046] Heating block 29 is fixed to main unit 38, heating wire 26 is fixed to heating block 29 and used to heat heating block 29, heating groove 39 is formed on the side wall of heating block 29, heating groove 39 is set horizontally. First anti-adhesion tape 30 and second anti-adhesion tape 31 are used to contact the inner wall of heating groove 39, the first anti-adhesion tape 30 and the second anti-adhesion tape 31 are arranged opposite to each other and form a sealing area between the first anti-adhesion tape 30 and the second anti-adhesion tape 31.

[0047] The cooling component 32 includes a heat sink 33, heat dissipation holes 34, a fan 35, and heat sink 36. The heat sink 33 is fixed to the main unit 38, and a heat dissipation groove 40 is formed on the side wall of the heat sink 33. The length direction of the heat dissipation groove 40 is collinear with the length direction of the heating groove 39.

[0048] The first anti-adhesion tape 30 and the second anti-adhesion tape 31 pass through the heating groove 39 and contact the inner wall of the heat dissipation groove 40. Multiple heat dissipation holes 34 are provided on the heat dissipation block 33, and heat dissipation fins 36 are fixed to the side of the heat dissipation block 33 facing away from the heat dissipation groove 40. The multiple heat dissipation fins 36 are arranged along the length of the heat dissipation block 33. The fan 35 is fixed to the main unit 38 and is positioned opposite to the heat dissipation fins 36.

[0049] A guide plate 37 is fixedly connected to the side wall of the main unit 38, and the guide plate 37 is located on the side of the main unit 38 facing the frame 1. The guide plate 37 is located between the first anti-adhesion strip 30 and the second anti-adhesion strip 31, and the guide plate 37 is close to the second roller 28.

[0050] The usage process of this utility model is as follows:

[0051] First, the operator places the filled plastic bag onto the placement plate 20 located above the conveyor belt 4. The placement plate 20 is made of stainless steel and is securely fixed to the frame 1. Then, the bag opening is guided onto the conveyor belt 4. The conveyor belt 4 is supported and tensioned by two drive rollers 2 fixed to both ends of the frame 1 and driven by a servo motor. Friction forces cause the conveyor belt 4 to rotate, thereby conveying the plastic bag to the sealing machine body.

[0052] To accommodate plastic bags of varying heights, the height of the conveying assembly can be precisely adjusted. The entire conveying assembly is slidably connected to a guide sleeve 7 on the frame 1 via two columns 6 on its internal support platform 5. Both the guide sleeve 7 and the columns 6 are vertically positioned, allowing the frame 1 to move freely up and down in the vertical direction. When height adjustment is needed, the operator rotates the locking member 11 on the side wall of the frame 1. The first threaded section 15 and the second threaded section 16 on the locking member 11 rotate synchronously, driving the first slider 18 and the second slider 19 to move synchronously in opposite directions via the slide rod 17. The first slider 18 and the second slider 19 are respectively fixed with a first friction block 12 and a second friction block 13. When the locking member 11 rotates forward, the first friction block 12 and the second friction block 13 move inward synchronously, tightly abutting against the friction strip 10 fixed in the groove 9 in the middle of the two columns 6. Through the self-locking property of the threads, the first friction block 12 and the second friction block 13 can stably lock the conveying assembly at the required height, ensuring that the bag opening always enters the sealing component 25 straight.

[0053] The opening of the plastic bag is precisely fed into the sealing component 25 of the sealing machine body by the conveyor belt 4. Before entering the sealing area, the guide plate 37 located on the side wall of the main unit 38 guides the bag opening to ensure its smooth entry into the sealing component 25. In the sealing component 25, the heating wire 26 heats the heating block 29 fixed on the main unit 38. As the plastic bag opening passes through the sealing area, it is clamped by the first anti-stick tape 30 and the second anti-stick tape 31 and melted by heat, completing the heat seal.

[0054] After heat sealing, the bag opening immediately enters the heat dissipation groove 40 of the cooling component 32 along with the first anti-adhesion tape 30 and the second anti-adhesion tape 31. The length direction of the heat dissipation groove 40 is collinear with the heating groove 39, and the first anti-adhesion tape 30 and the second anti-adhesion tape 31 contact the inner wall of the heat dissipation groove 40. Part of the heat from the plastic bag opening is transferred to the heat dissipation block 33 through the first anti-adhesion tape 30 and the second anti-adhesion tape 31, thereby dissipating heat. At the same time, the fan 35, fixed on the frame 1 and positioned opposite the heat sink 36, generates a strong airflow to force-cool the heat sink 36 and the heat dissipation block 33. This rapid cooling effect immediately forces the sealed area in the heat-melted state to be shaped, preventing stretching or deformation caused by residual heat and clamping force, and ensuring that the sealing line is straight and firm. The entire sealing process is completed continuously and efficiently.

[0055] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. An automatic film sealing machine, comprising a sealing machine body and a conveying assembly located on one side of the sealing machine body, characterized in that: It also includes a support platform (5). The conveying assembly includes a frame (1), drive rollers (2), a support plate (3), and a conveyor belt (4). The two drive rollers (2) are rotatably connected to both ends of the frame (1). The conveyor belt (4) is supported and tensioned by the two drive rollers (2). The support plate (3) is fixed to the frame (1) and located inside the conveyor belt (4). The support plate (3) supports the inner wall of the conveyor belt (4). The support platform (5) is fixedly connected to a column (6) along its height direction. A guide sleeve (6) is fixedly connected to the frame (1) and slidably connected to the column (6). 7) A connecting groove (8) is provided on the side wall of the guide sleeve (7). A friction strip (10) passing through the connecting groove (8) is fixedly connected to the column (6). The height direction of the friction strip (10) is parallel to the height direction of the column (6). A locking member (11) is rotatably connected to the side wall of the frame (1). A first friction block (12) and a second friction block (13) are slidably connected to the frame (1). The locking member (11) rotates and, through the transmission component (14), makes the first friction block (12) and the second friction block (13) abut against the two sides of the friction strip (10) respectively.

2. An automatic film sealing machine according to claim 1, characterized in that: The transmission component (14) includes a first threaded section (15), a second threaded section (16), a slide rod (17), a first slider (18), and a second slider (19). The first threaded section (15) and the second threaded section (16) are both fixed on the locking member (11) and are coaxially arranged. The threads of the first threaded section (15) and the threads of the second threaded section (16) rotate in opposite directions. The slide rod (17) is fixed on the frame (1), and the axis of the slide rod (17) is parallel to the axis of the locking member (11). The first slider (18) is slidably connected to the slide rod (17) and threadedly connected to the first threaded section (15). The second slider (19) is slidably connected to the slide rod (17) and threadedly connected to the second threaded section (16). The first friction block (12) is fixed on the first slider (18), and the second friction block (13) is fixed on the second slider (19). The first slider (18) and the second slider (19) are located on both sides of the friction strip (10).

3. An automatic film sealing machine according to claim 2, characterized in that: The column (6) is provided in two parts and is located near the two ends of the support platform (5), and each column (6) is connected to a friction strip (10).

4. An automatic film sealing machine according to claim 1, characterized in that: The upper surface of the frame (1) is provided with a placement plate (20), which is located above the conveyor belt (4) and at one end of the frame (1). The side wall of the placement plate (20) is bent to form a connecting piece (21), which is fixed to the side wall of the frame (1).

5. An automatic film sealing machine according to claim 1, characterized in that: The sealing machine body includes a main unit (38), a sealing component (25), and a cooling component (32). The sealing component (25) and the cooling component (32) are both mounted on the main unit (38). A crossbar (22) is fixedly connected to the side wall of the main unit (38). A slide tube (23) is fixedly connected to the side wall of the support platform (5). The crossbar (22) is slidably connected in the slide tube (23). A fixing bolt (24) is threadedly connected to the side wall of the slide tube (23). The fixing bolt (24) is used to abut against the outer wall of the crossbar (22).

6. An automatic film sealing machine according to claim 5, characterized in that: The sealing component (25) includes a heating wire (26), a first rotating wheel (27), a second rotating wheel (28), a heating block (29), a first anti-stick tape (30), and a second anti-stick tape (31). The two first rotating wheels (27) are rotatably connected to the main unit (38) and rotate in the same direction. The two second rotating wheels (28) are rotatably connected to the main unit (38) and rotate in the same direction. The first rotating wheels (27) and the second rotating wheels (28) rotate in opposite directions. The first anti-stick tape (30) is tensioned by the two first rotating wheels (27). The second anti-stick tape (31) is... The adhesive tape (31) is tensioned by two second rotating wheels (28), the heating block (29) is fixed on the host (38), the heating wire (26) is used to heat the heating block (29), the heating block (29) has a heating groove (39) on its side wall, the first anti-adhesive tape (30) and the second anti-adhesive tape (31) are used to contact the inner wall of the heating groove (39), the first anti-adhesive tape (30) and the second anti-adhesive tape (31) are arranged opposite to each other and form a sealing area between the first anti-adhesive tape (30) and the second anti-adhesive tape (31).

7. An automatic film sealing machine according to claim 6, characterized in that: The cooling component (32) includes a heat sink (33), heat dissipation holes (34), a fan (35), and a heat sink (36). The heat sink (33) is fixed on the host (38). A heat dissipation groove (40) is provided on the heat sink (33). The length direction of the heat dissipation groove (40) is collinear with the length direction of the heating groove (39). The first anti-adhesion tape (30) and the second anti-adhesion tape (31) pass through the heating groove (39) and contact the inner wall of the heat dissipation groove (40). A plurality of heat dissipation holes (34) are provided on the heat sink (33). The heat sink (36) is fixed on the side of the heat sink (33) facing away from the heat dissipation groove (40). The fan (35) is fixed on the host (38) and is arranged opposite to the heat sink (36).

8. An automatic film sealing machine according to claim 6, characterized in that: A guide plate (37) is fixedly connected to the host (38). The guide plate (37) is located between the first anti-adhesion strip (30) and the second anti-adhesion strip (31). The guide plate (37) is close to the second rotating wheel (28).

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