A folding film packaging machine compatible with ordinary film and bubble film

Abstract

This invention relates to a folding film packaging machine compatible with both ordinary film and bubble wrap, comprising a feeding mechanism and a sealing and cutting mechanism. The feeding mechanism is equipped with a film forming mechanism at its discharge end, which is connected to a film supply mechanism. The film supply mechanism includes a first film supply component, a second film supply component, and a common roller group. Either the first or second film supply component is connected to the common roller group, which includes an upper roller and a lower roller. The lower roller is located behind the film forming mechanism. The first film supply component is positioned in front of the upper roller, and the second film supply component is positioned behind the common roller group. The second film supply component includes an unwinding shaft, a folding plate, a guide roller, and a second tension roller. The folding plate is inclined in the left-right direction, and the unwinding shaft is located to the right of the guide roller. The first film supply component includes a first tension roller. The first and second tension rollers are sequentially mounted on a swing arm, which is oscillating with its swing center located in front of the upper roller. The second film supply component and the first film supply component share the common roller group and the swing arm.

Description

Technical Field

[0001] This invention relates to packaging equipment, and more particularly to a folding film packaging machine compatible with both ordinary film and bubble wrap. Background Technology

[0002] Chinese invention patent CN106144027A discloses a folded film wrapping machine. The folded film fed from the film feeding device enters the film forming device. The two pieces of the folded film are folded apart by the two forming plates of the film forming device and then guided to the conveying device. The feeding device feeds the material between the two separated film pieces. The clamping conveying component clamps and aligns the edges of the two film pieces and intermittently conveys the folded film containing the material in sync with the conveying device. The edges of the two film pieces are sealed to form a bubble bag containing the material.

[0003] To better protect the materials, bubble wrap is needed for packaging. Because of the bubbles on the surface, bubble wrap cannot be pre-folded and rolled up, and needs to be folded online. It is proposed to set up two different film supply components to be compatible with the packaging needs of ordinary film and bubble wrap, so that one machine can serve two purposes. Summary of the Invention

[0004] In view of the technical problems existing in the background art, the present invention aims to provide a folding film packaging machine compatible with ordinary film and bubble film, by adding a second film supply component, folding bubble film online, the second film supply component and the first film supply component sharing a common roller group, the first tension roller and the second tension roller sharing a swing arm, and being compatible with bubble film and ordinary film.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A folding film packaging machine compatible with ordinary film and bubble wrap includes a feeding mechanism and a sealing and cutting mechanism. The sealing and cutting mechanism is located on the right side of the feeding mechanism. The feeding mechanism's outlet end is equipped with a film forming mechanism, which is connected to a film supply mechanism. The film supply mechanism includes a first film supply assembly, a second film supply assembly, and a common roller group. The first film supply assembly or the second film supply assembly is connected to the common roller group. The common roller group includes an upper roller and a lower roller. The lower roller is located behind the film forming mechanism, and the upper roller is located above the lower roller. The first film supply assembly is equipped with... The first film supply assembly is located in front of the upper roller and behind the common roller group. The second film supply assembly includes an unwinding shaft, a folding plate, a guide roller, and a second tension roller arranged in sequence. The folding plate is inclined in the left-right direction. The unwinding shaft is lower than the feed end of the folding plate, and the guide roller is lower than the discharge end of the folding plate. The unwinding shaft extends in the front-back direction and is located to the right of the guide roller. The guide roller extends in the left-right direction. The first film supply assembly includes a first tension roller. The first tension roller and the second tension roller are arranged in sequence on a swing arm. The swing arm is oscillating and the oscillation center is located in front of the upper roller.

[0006] In this scheme, the double-layer ordinary film released by the first film supply component or the double-layer bubble film released by the second film supply component is connected to the common roller group. The first tension roller and the second tension roller share a swing arm, simplifying the structure. The single-layer bubble film released by the unwinding shaft winds upward around the folding plate, folds in opposite directions along the front and rear sides of the folding plate, and is conveyed forward around the guide roller. The folded edge is located on the left side of the double-layer bubble film. After being folded by the film forming mechanism, the double-layer bubble film is conveyed to the right.

[0007] Preferably, the film forming mechanism includes forming plates, two forming plates are respectively disposed on the upper and lower sides of the feeding mechanism, the forming plates have a reference edge and a folding inclined edge, a folding wheel is provided at the intersection of the reference edge and the folding inclined edge, the upper forming plate is adjustable in height, the feeding mechanism is adjustable in front and behind, and the film forming mechanism is connected to the feeding mechanism.

[0008] In this design, the bubble wrap will not be hooked when folded. The folded edge is folded to the right at the folding wheel and aligned with the reference edge. The folded edge serves as the rear side of the bubble bag and does not require sealing or cutting. The upper forming plate can be raised and lowered to adapt to the height of the packaged object, and the feeding mechanism can be moved back and forth to adapt to changes in film width.

[0009] Preferably, the forming plate is provided with a vertically extending mounting shaft, the folding wheel is sleeved on the mounting shaft, and the reference edge and the folding inclined edge are both tangent to the folding wheel.

[0010] In this scheme, the reference edge and the folding bevel are tangent to the folding wheel. The bubble film is folded along the folding bevel, and the folded edge is aligned with the reference edge to reduce bubble film deflection.

[0011] Preferably, a support plate is connected to the upper surface of the upper forming plate, the support plate is threadedly engaged with an adjusting screw, the adjusting screw extends vertically, the adjusting screw is rotatably mounted on a fixed seat, and the adjusting screw is connected to a handwheel.

[0012] In this solution, the adjustment screw is turned by handwheel, which drives the support plate and the upper forming plate to rise and fall to adapt to the height of the packaged object.

[0013] Preferably, the feeding mechanism includes a feeding conveyor table, on which a guide rod extending in the front-to-back direction is provided. The feeding conveyor table is connected to a guide block that slides with the guide rod. The feeding conveyor table and the machine table are respectively provided with a locking rack and a fixing rack in the front-to-back direction. The fixing rack is longer than the locking rack. The front side of the feeding conveyor table is provided with a through hole and a handle. The through hole allows a pull rod to pass through. The pull rod is L-shaped and located behind the handle. A first elastic element is provided between the pull rod and the feeding conveyor table. The pull rod is hinged to a hook. The hook is rotatably disposed on the lower side of the feeding conveyor table with its rotation axis extending in the left-to-right direction. The locking rack is raised and lowered on the lower side of the feeding conveyor table. The locking rack is connected to a vertical bar. A top rod extending in the front direction is provided on the front side of the vertical bar. The top rod cooperates with the hook. A second elastic element is provided between the locking rack and the feeding conveyor table.

[0014] In this solution, by holding the handle and lever with one hand and bringing them close together, the lever drives the locking rack to rise through the hook transmission, allowing the feeding conveyor table to be pulled freely. Unlocking and adjustment can be achieved with one hand.

[0015] Preferably, the lower side of the feeding conveyor is provided with a lifting seat, the lifting seat is provided with a slide groove for the vertical bar to be raised and lowered, and the front side of the lifting seat is provided with an opening for the top rod to be exposed.

[0016] In this design, the lifting platform limits and guides the vertical bars.

[0017] Preferably, the sealing and cutting mechanism further includes a discharge conveyor, a film stretching assembly, and a sealing and cutting assembly. The sealing and cutting assembly includes a cooperating upper blade holder and a lower blade holder. The upper blade holder is equipped with a sealing and cutting blade, which is L-shaped. The sealing and cutting assembly is disposed at the feeding end of the discharge conveyor. The film stretching assembly is disposed on the front side of the discharge conveyor. The film stretching assembly includes a set of synchronous belts. The inner side of the synchronous belts is provided with transmission teeth for meshing with synchronous pulleys. The synchronous pulleys are connected to the film stretching power source. The outer side of the synchronous belts is provided with conveying teeth. The film stretching assembly is connected to a take-up shaft, which is located below the discharge conveyor.

[0018] In this scheme, a set of synchronous belts engages with the bubbles on the surface of the bubble film through conveyor teeth, reliably conveying the bubble film. Ordinary film can also be conveyed by clamping the conveyor teeth.

[0019] Preferably, the swing arm includes a main body and an attachment part, the main body is swing-mounted, the attachment part is detachably connected to the main body, the first tension roller is disposed in the main body, and the second tension roller is disposed in the attachment part.

[0020] In this solution, reducing the additional components and the second film supply assembly creates a standard model, while installing the additional components and adding the second film supply assembly creates a dual-purpose model, which can be adapted to changes in customer needs.

[0021] Preferably, the second film supply assembly further includes a traction roller group, which includes a cooperating active roller and a driven roller. The active roller is connected to the traction power source, and the driven roller is connected to the frame through a third elastic element.

[0022] In this design, the third elastic element deforms, and the gap between the driven roller and the driving roller becomes variable, allowing the bubbles in the bubble film to pass through.

[0023] The beneficial effects of this invention are as follows: A second film supply assembly is added, allowing for online folding of the bubble wrap. The second film supply assembly shares a common roller group with the first film supply assembly, and the first and second tension rollers share a swing arm, making it compatible with both bubble wrap and ordinary film. The bubble wrap will not be hooked during folding; the folded edge is folded to the right at the folding wheel and aligned with the reference edge. The folded edge serves as the rear edge of the bubble bag and does not require sealing or cutting. The upper forming plate can be raised and lowered to adapt to the height of the packaged object, and the feeding mechanism can be moved back and forth to adapt to changes in film width. Therefore, this invention has substantial features and advancements compared to existing technologies. Attached Figure Description

[0024] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of the present invention.

[0025] Figure 1 This is a schematic diagram of the bubble membrane being inserted into the membrane in this invention.

[0026] Figure 2 This is a schematic diagram of the membrane penetration process of a conventional membrane in this invention.

[0027] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism and sealing mechanism in this invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the feeding mechanism and the film forming mechanism in this invention.

[0029] Figure 5 This is a three-dimensional structural diagram of the fixing rack and locking rack in this invention.

[0030] Figure 6 This is a three-dimensional structural diagram of the membrane stretching assembly in this invention.

[0031] Figure 7 This is a three-dimensional structural diagram of the upper tool holder in this invention.

[0032] Figure 8 This is a three-dimensional structural diagram of the lower tool holder in this invention.

[0033] Figure 9This is a schematic diagram showing the double-layer membrane folding at the membrane forming mechanism in this invention.

[0034] In the diagram: 1. Feeding mechanism; 2. Film forming mechanism; 3. Film supply mechanism; 4. Sealing and cutting mechanism; 5. First film supply assembly; 6. Second film supply assembly; 7. Common roller group; 8. Upper roller; 9. Lower roller; 10. Traction roller group; 11. Folding plate; 12. Guide roller; 13. Second tension roller; 14. First tension roller; 15. Swing arm; 16. Forming plate; 17. Reference edge; 18. Folding bevel edge; 19. Folding wheel; 20. Support plate; 21. Adjusting screw; 22. Fixed seat; 23. Handwheel; 24. Feed conveyor 25. Feeding table; 26. Machine base; 27. Locking rack; 28. Fixing rack; 29. ​​Through hole; 30. Handle; 31. Pull rod; 32. First elastic element; 33. Pull hook; 34. Vertical bar; 35. Top rod; 36. Second elastic element; 37. Lifting seat; 38. Addition part; 39. Film stretching assembly; 40. Sealing and cutting assembly; 41. Upper knife holder; 42. Lower knife holder; 43. Sealing and cutting knife; 44. Synchronous belt; 45. Synchronous pulley; 46. Transmission gear; 47. Film stretching power source; 48. Conveying gear; 49. Main body. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the implementation of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0038] See appendix Figure 1-39. In an embodiment of this invention, a folding film packaging machine compatible with ordinary film and bubble film is provided, including a feeding mechanism 1 and a sealing and cutting mechanism 4. The sealing and cutting mechanism 4 is disposed on the right side of the feeding mechanism 1. The feeding mechanism 1 is equipped with a film forming mechanism 2 at its discharge end. The film forming mechanism 2 includes forming plates 16. Two forming plates 16 are respectively disposed on the upper and lower sides of the feeding mechanism 1. The film forming mechanism 2 is connected to the film supply mechanism 3.

[0039] The film supply mechanism 3 includes a first film supply component 5, a second film supply component 6, and a common roller group 7. The first film supply component 5 or the second film supply component 6 is connected to the common roller group 7. The common roller group 7 includes an upper roller 8 and a lower roller 9. The lower roller 9 is located behind the film forming mechanism 2, and the upper roller 8 is located above the lower roller 9. The first film supply component 5 is disposed in front of the upper roller 8, and the second film supply component 6 is disposed behind the common roller group 7.

[0040] The second film supply assembly 6 includes an unwinding shaft, a folding plate 11, a guide roller 12, a traction roller group 10, and a second tension roller 13 arranged sequentially. The folding plate 11 is inclined in the left-right direction. The unwinding shaft is lower than the feed end of the folding plate 11, and the guide roller 12 is lower than the discharge end of the folding plate 11. The unwinding shaft extends in the front-back direction and is located to the right of the guide roller 12. The guide roller 12 extends in the left-right direction. The traction roller group 10 includes a cooperating drive roller and a driven roller. The drive roller is connected to the traction power source, and the driven roller is connected to the frame through a third elastic element.

[0041] The first film supply assembly 5 includes a first tension roller 14. The first tension roller 14 and the second tension roller 13 are sequentially arranged on a swing arm 15. The swing arm 15 is oscillating and the oscillation center is located in front of the upper roller 8. The swing arm 15 includes a main body part 48 and an attachment part 37. The main body part 48 is oscillating, and the attachment part 37 is detachably connected to the main body part 48. The first tension roller 14 is arranged on the main body part 48, and the second tension roller 13 is arranged on the attachment part 37.

[0042] In this embodiment, by installing the addition part 37 and adding the second film supply component 6, the customer's existing ordinary model can be upgraded into a dual-purpose model. The folding film packaging machine has ordinary film mode and bubble film mode. In the ordinary film mode, the double-layer ordinary film released by the first film supply component 5 is fed into the upper roller 8 from the front. In the bubble film mode, the double-layer bubble film released by the second film supply component 6 is fed into the upper roller 8 from the rear. After passing around the upper roller 8, it passes around the lower roller 9 from the top. The wrapping angle is large enough and the film is fully stretched.

[0043] The unwinding, traction, and tension control of the first film supply assembly 5 are mature technologies. For the second film supply assembly 6, the unwinding shaft is equipped with a cylindrical film clamp. The bubble film roll is threaded on the unwinding shaft and aligned with the bottom end of the folding plate 11. The active roller and the driven roller work together to pull the bubble film for film supply. The driven roller adapts to the protruding bubble of the bubble film as the third elastic element extends and retracts. The bubble film released from the unwinding shaft winds upward around the folding plate 11. The front and rear sides of the bubble film are folded against the front and rear sides of the folding plate 11 to form a double-layer bubble film and then winds downward around the guide roller 12 and is conveyed forward. The folded edge is formed on the left side of the double-layer bubble film. The swing arm 15 swings to make the second tension roller 13 work with the traction roller group 10 to supply film.

[0044] The upper and lower layers of the double-layer film are folded at the upper and lower forming plates 16 respectively, and conveyed to the right. The folded edge is folded to the back of the double-layer film. The feeding mechanism 1 conveys the object to be packaged into the space between the double-layer film and reaches the sealing and cutting mechanism 4 along with the double-layer film. The sealing and cutting mechanism 4 seals and cuts the double-layer film to form the front, left and right sides of the packaging bag, completing the packaging of the object, and then conveys the packaging bag with the object to the right.

[0045] Both the feeding mechanism 1 and the sealing and cutting mechanism 4 include conveyor belts for conveying the packaging object and packaging bag. The sealing and cutting will form the left and right sides of adjacent bubble bags. The cutter is L-shaped in a single station, and sealing and cutting can also be performed in two stations.

[0046] See appendix Figure 4-5 9. The forming plate 16 has a reference edge 17 and a folding inclined edge 18. A folding wheel 19 is provided at the intersection of the reference edge 17 and the folding inclined edge 18. The forming plate 16 is provided with a mounting shaft extending vertically. The folding wheel 19 is sleeved on the mounting shaft. The reference edge 17 and the folding inclined edge 18 are both tangent to the folding wheel 19.

[0047] A support plate 20 is connected to the upper surface of the upper forming plate 16. The support plate 20 is threadedly engaged with the adjusting screw 21. The adjusting screw 21 extends vertically and is rotatably mounted on the fixed seat 22. The adjusting screw 21 is connected to a handwheel 23.

[0048] The film forming mechanism 2 is connected to the feeding mechanism 1. The feeding mechanism 1 includes a feeding conveyor 24. A guide rod extending in the front-rear direction is provided on the machine base 25. The feeding conveyor 24 is connected to a guide block that slides with the guide rod. The feeding conveyor 24 and the machine base 25 are respectively provided with a locking rack 26 and a fixing rack 27 in the front-rear direction. The fixing rack 27 is longer than the locking rack 26. The front side of the feeding conveyor 24 is provided with a through hole 28 and a handle 29. The through hole 28 allows a pull rod 30 to pass through. The pull rod 30 is L-shaped and located behind the handle 29. A first... The elastic element 31, the pull rod 30 is hinged to the hook 32, the hook 32 is rotatably disposed on the lower side of the feeding conveyor table 24 and the axis of rotation extends in the left and right direction, the locking rack 26 is raised and lowered on the lower side of the feeding conveyor table 24, the locking rack 26 is connected to the vertical bar 33, the front side of the vertical bar 33 is provided with the top rod 34 extending in the front and back direction, the top rod 34 cooperates with the hook 32, a second elastic element 35 is provided between the locking rack 26 and the feeding conveyor table 24, the lower side of the feeding conveyor table 24 is provided with the lifting seat 36, the lifting seat 36 is provided with the sliding groove for the vertical bar 33 to rise and fall, the front side of the lifting seat 36 is provided with the opening for the top rod 34 to be exposed.

[0049] In this embodiment, when the height of the packaged object changes, the handwheel 23 is used to rotate the adjusting screw 21, which drives the support plate 20 and the upper forming plate 16 to rise and fall. When the width of the packaging film changes, the pull rod 30 and the handle 29 are held together, and the pull rod 30 and the handle 29 are brought together. The pull rod 30 rotates the hook 32, and the hook 32 pushes the vertical bar 33 and the locking rack 26 upward through the top rod 34. The locking rack 26 is separated from the fixed rack 27. At this time, pulling the handle 29 can drive the feeding conveyor 24 to move back and forth, and drive the film forming mechanism 2 to move synchronously, so that the reference edge 17 is close to or away from the sealing and cutting part of the corresponding front side in the sealing and cutting mechanism 4. The fixed seat 22 is connected to the lower fixed seat 22 through the guide post. The lower fixed seat 22 is connected to the lower forming plate 16. The support plate 20 is provided with a through hole for the guide post to pass through. The lower fixed seat 22 is connected to the feeding conveyor 24.

[0050] When the pull rod 30 is released, the first elastic element 31 drives the pull rod 30 to reset, and the hook 32 resets accordingly. The hook 32 separates from the top rod 34. The vertical bar 33 and the locking rack 26 descend under the action of gravity and the elastic force of the second elastic element 35 and re-engage with the fixed rack 27. The elastic force of the second elastic element 35 makes the locking rack 26 reliably engage with the fixed rack 27.

[0051] The first elastic element 31 is sleeved on the pull rod 30. The frame is connected to a connecting plate. The first elastic element 31 is connected to the connecting plate and the pull rod 30 respectively. The connecting plate is provided with a pull hole for the pull rod 30 to pass through. The second elastic element 35 is set at an angle. Both ends are connected to screws. One end screw is connected to the frame, and the other end screw is connected to the vertical bar 33. This avoids the vertical bar 33 from being too long when it is set vertically between the lifting seat 36 and the vertical bar 33, thus preventing it from hooking the lower layer of bubble wrap.

[0052] See appendix Figure 6-8 The sealing and cutting mechanism 4 further includes a discharge conveyor, a film stretching assembly 38, and a sealing and cutting assembly 39. The sealing and cutting assembly 39 includes a cooperating upper blade holder 40 and a lower blade holder 41. The upper blade holder 40 is provided with a sealing and cutting blade 42, which is L-shaped. The sealing and cutting assembly 39 is disposed at the feeding end of the discharge conveyor. The film stretching assembly 38 is disposed on the front side of the discharge conveyor. The film stretching assembly 38 includes a set of synchronous belts 43. The inner side of the synchronous belts 43 is provided with transmission teeth 45 for meshing with synchronous pulleys 44. The synchronous pulleys 44 are connected to the film stretching power source 46. The outer side of the synchronous belts 43 is provided with conveying teeth 47. The film stretching assembly 38 is connected to a take-up shaft, which is located below the discharge conveyor.

[0053] In this embodiment, the discharge conveyor is equipped with a discharge conveyor belt. After the double-layer film containing the packaged object is conveyed onto the discharge conveyor belt, the upper knife holder 40 and the lower knife holder 41 close together. The sealing and cutting knife 42 seals and cuts the double-layer bubble film to form a packaging bag. The film pulling assembly 38 participates in the conveying of the double-layer film and conveys the waste film formed by sealing and cutting to the right. It is then wound up by the take-up shaft. The synchronous belt 43 engages with the bubbles on the surface of the bubble film through the conveying teeth 47 to reliably convey the bubble film. Ordinary film can also be clamped through the conveying teeth 47. The film pulling assembly 38 can also be used as a reference to adjust the reference edge 17.

[0054] The above description represents the preferred embodiments of the present invention. It should be noted that the scope of protection of the present invention is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in the present invention, and these modifications and substitutions are also considered to be within the scope of protection of the present invention.

Claims

1. A folding film packaging machine compatible with ordinary film and bubble wrap, comprising a feeding mechanism (1) and a sealing and cutting mechanism (4), wherein the sealing and cutting mechanism (4) is disposed on the right side of the feeding mechanism (1), and the feeding mechanism (1) is equipped with a film forming mechanism (2) at its discharge end, wherein the film forming mechanism (2) is connected to a film supply mechanism (3), characterized in that: The film supply mechanism (3) includes a first film supply assembly (5), a second film supply assembly (6), and a common roller group (7). The first film supply assembly (5) or the second film supply assembly (6) is connected to the common roller group (7). The common roller group (7) includes an upper roller (8) and a lower roller (9). The lower roller (9) is located behind the film forming mechanism (2), and the upper roller (8) is located above the lower roller (9). The first film supply assembly (5) is arranged in front of the upper roller (8), and the second film supply assembly (6) is arranged behind the common roller group (7). The second film supply assembly (6) includes an unwinding shaft and a folding plate (11) arranged in sequence. The guide roller (12) and the second tension roller (13) are arranged with the folded plate (11) inclined in the left and right direction. The unwinding shaft is lower than the feed end of the folded plate (11). The guide roller (12) is lower than the discharge end of the folded plate (11). The unwinding shaft extends in the front and back direction. The unwinding shaft is located to the right of the guide roller (12). The guide roller (12) extends in the left and right direction. The first film supply assembly (5) includes a first tension roller (14). The first tension roller (14) and the second tension roller (13) are arranged sequentially on the swing arm (15). The swing arm (15) is oscillating and the oscillation center is located in front of the upper roller (8).

2. The folding film packaging machine compatible with ordinary film and bubble film as described in claim 1, characterized in that: The membrane forming mechanism (2) includes forming plates (16), and two forming plates (16) are respectively arranged on the upper and lower sides of the feeding mechanism (1). The forming plate (16) has a reference edge (17) and a folding inclined edge (18). A folding wheel (19) is provided at the intersection of the reference edge (17) and the folding inclined edge (18). The upper forming plate (16) is adjustable in height, and the feeding mechanism (1) is adjustable in front and back movement. The membrane forming mechanism (2) is connected to the feeding mechanism (1).

3. A folding film packaging machine compatible with both ordinary film and bubble wrap as described in claim 2, characterized in that: The forming plate (16) is provided with a mounting shaft extending vertically, and the folding wheel (19) is sleeved on the mounting shaft. The reference edge (17) and the folding oblique edge (18) are both tangent to the folding wheel (19).

4. A folding film packaging machine compatible with ordinary film and bubble film as described in claim 2, characterized in that: A support plate (20) is connected to the upper surface of the upper forming plate (16). The support plate (20) is threadedly engaged with the adjusting screw (21). The adjusting screw (21) extends vertically and is rotatably mounted on the fixed seat (22). The adjusting screw (21) is connected to a handwheel (23).

5. A folding film packaging machine compatible with both ordinary film and bubble wrap as described in claim 2, characterized in that: The feeding mechanism (1) includes a feeding conveyor table (24), and a guide rod extending in the front-to-back direction is provided on the machine base (25). The feeding conveyor table (24) is connected to a guide block that slides with the guide rod. The feeding conveyor table (24) and the machine base (25) are respectively provided with a locking rack (26) and a fixing rack (27) in the front-to-back direction. The fixing rack (27) is longer than the locking rack (26). The front side of the feeding conveyor table (24) is provided with a through hole (28) and a handle (29). The through hole (28) allows the pull rod (30) to pass through. The pull rod (30) is L-shaped and located behind the handle (29). A first elastic element (31) is provided between the pull rod (30) and the feeding conveyor (24). The pull rod (30) is hinged with a hook (32). The hook (32) is rotatably disposed on the lower side of the feeding conveyor (24) and the rotation axis extends in the left and right direction. The locking rack (26) is raised and lowered on the lower side of the feeding conveyor (24). The locking rack (26) is connected to a vertical bar (33). A top rod (34) extending in the front direction is provided on the front side of the vertical bar (33). The top rod (34) cooperates with the hook (32). A second elastic element (35) is provided between the locking rack (26) and the feeding conveyor (24).

6. A folding film packaging machine compatible with ordinary film and bubble film as described in claim 5, characterized in that: The feeding conveyor (24) is provided with a lifting seat (36) on the lower side. The lifting seat (36) is provided with a sliding groove for the vertical bar (33) to be raised and lowered. The front side of the lifting seat (36) is provided with an opening for the top rod (34) to be exposed.

7. A folding film packaging machine compatible with ordinary film and bubble film as described in claim 1, characterized in that: The sealing and cutting mechanism (4) further includes a discharge conveyor, a film pulling assembly (38), and a sealing and cutting assembly (39). The sealing and cutting assembly (39) includes a cooperating upper blade holder (40) and a lower blade holder (41). The upper blade holder (40) is provided with a sealing and cutting blade (42). The sealing and cutting blade (42) is L-shaped. The sealing and cutting assembly (39) is arranged at the feeding end of the discharge conveyor. The film pulling assembly (38) is arranged on the front side of the discharge conveyor. The film pulling assembly (38) includes a set of synchronous belts (43). The inner side of the synchronous belts (43) is provided with transmission teeth (45) for meshing with synchronous pulleys (44). The synchronous pulleys (44) are connected to the film pulling power source (46). The outer side of the synchronous belts (43) is provided with conveying teeth (47). The film pulling assembly (38) is connected with a take-up shaft. The take-up shaft is located below the discharge conveyor.

8. A folding film packaging machine compatible with ordinary film and bubble film as described in claim 1, characterized in that: The swing arm (15) includes a main body (48) and an attachment part (37). The main body (48) is swing-mounted. The attachment part (37) is detachably connected to the main body (48). The first tension roller (14) is disposed on the main body (48), and the second tension roller (13) is disposed on the attachment part (37).

9. A folding film packaging machine compatible with ordinary film and bubble film as described in claim 1, characterized in that: The second film supply assembly (6) also includes a traction roller group (10), which includes a cooperating active roller and a driven roller. The active roller is connected to the traction power source, and the driven roller is connected to the frame through a third elastic element.

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