Wrapping machine

Abstract

The wrapping machine comprises a box feeding mesh belt station, a box turning and folding station, a box ejecting station, a box pushing and film folding station, an end face hot melting station, a film pulling and cutting station and a vacuum film conveying station, the box ejecting station comprises a box blocking plate, a box ejecting plate and a box ejecting mechanism, the box ejecting plate can eject a box body of the box turning and folding station, and the box blocking plate can eject the box body of the box turning and folding station. The box ejecting plate is communicated with the box turning and stacking station, a movable swing block is arranged on the box ejecting plate, and guide angles are arranged at the positions, close to the box turning and stacking station, of the box ejecting plate and the movable swing block. The arrangement of the guide angle can prevent the wrapping film from being damaged in the film folding process, the arrangement of the box blocking plate can effectively prevent the box body from collapsing in the film folding process, and the arrangement of the box pushing and film folding station can realize two-section box pushing and wrapping, so that the problems that the wrapping is not tight due to the fact that the film receiving distance of a traditional wrapping machine is long, and the wrapping efficiency is high are solved. The four-edge corner folding of the box body with the high wrapping height is achieved, and the attractiveness of the wrapped box body is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and more specifically, to a wrapping machine. Background Technology

[0002] A wrapping machine is a medium-sized packaging equipment that cuts packaging film to the required length, conveys the boxes via a conveyor, pushes the stacks (in the required form and quantity) with a cylinder, and then wraps and folds the boxes.

[0003] Current wrapping machines have several problems: 1. Because the film-bonding point is located at the edge of the product, it is often difficult to fold the fourth corner when dealing with products with high wrapping heights. This results in wraps that typically only have three corners, with the fourth corner either not folded out or very small, severely affecting the appearance of the wrap. 2. Existing wrapping machines push the wrapping top box into place before attaching the film. This means that when the film-bonding position is moved to a distant location, the wrapping film may unravel due to the long distance the wrapping has traveled, affecting the bonding effect. 3. Poor wrapping quality, with the packaging film and materials being too loose, not only affecting the appearance but also making the packaging film prone to damage. 4. Materials lingering at the heat-sealing station and being heated for a long time will affect product quality and may even cause product spoilage, especially for pharmaceutical and food products.

[0004] Therefore, there is an urgent need for a wrapping machine that can solve the problem of existing wrapping machines making it difficult to fold the four corners and wrap tightly and aesthetically when packaging products with a high degree of wrapping. Utility Model Content

[0005] The purpose of this utility model is to provide a wrapping machine. To achieve the above objective, the technical solution of this utility model is as follows: The wrapping machine includes an infeed conveyor belt station for inputting boxes, a box-flipping and stacking station for stacking boxes, a top-box station for lifting and conveying the boxes stacked at the box-flipping and stacking station, a box-pushing and film-folding station for pushing and folding the boxes to wrap them, an end-face heat-sealing station for heat-sealing the wrapping film on the box, a film-pulling and film-cutting station for dividing the wrapping film into unit lengths, and a vacuum film-feeding station for transporting the wrapping film. The box-making station includes a baffle plate, a top box plate, and a top box mechanism. The top box plate can lift the box body of the box-flipping and stacking station. The first end of the top box plate is connected to the box-flipping and stacking station. The baffle plate is installed on the first end of the top box plate. The baffle plate can prevent the box body from collapsing during the box-folding and film-folding process after the box body is lifted. A movable swing block is provided on the first end of the top box plate. Both the top box plate and the movable swing block are provided with guide angles near the box-flipping and stacking station to avoid damage to the wrapping film.

[0006] The top box mechanism is located at the second end of the top box plate, and an output end of the top box mechanism is connected with the bottom of the second end of the top box plate, and the top box mechanism can push the top box plate to rise and fall.

[0007] Preferably, a material supporting step is arranged on the top box plate, and the material supporting step can contact with the box body to support the box body.

[0008] Preferably, the top box plate comprises an initial state top box plate and a top-up state top box plate, before the top box mechanism works, the top box plate is located on the same horizontal line with the box turning and stacking station, at this time, the top box plate is the initial state top box plate.

[0009] After the top box mechanism works, the top box plate moves to the box pushing and film folding station, at this time, the top box plate is the top-up state top box plate.

[0010] The box entering net belt station, the box turning and stacking station and the initial state top box plate are sequentially connected, the vacuum film feeding station is located between the initial state top box plate and the top-up state top box plate, and the vacuum film feeding station is connected with the film pulling and cutting station.

[0011] Preferably, the box pushing and film folding station comprises a box pushing assembly, a lower film folding mechanism, a side film folding mechanism and a box body passage.

[0012] The top-up state top box plate is located on the box body passage, the box pushing assembly is located at one end of the box body passage to push the box body on the top-up state top box plate to move in the horizontal direction of the box body passage, the lower film folding mechanism is located below the box body passage, the side film folding mechanism is located on both sides of the box body passage, the lower film folding mechanism can wrap and heat seal the bottom of the box body, and the side film folding mechanism can wrap the side of the box body.

[0013] Preferably, the lower film folding mechanism comprises a bottom heat sealing assembly and a horizontally moving lower film folding supporting plate, the lower film folding supporting plate can abut against the wrapping film on the box body to push the wrapping film to wrap the bottom of the box body, and the bottom heat sealing assembly is located below the box body passage to heat seal the wrapping film on the bottom of the box body.

[0014] Preferably, the side film folding mechanism comprises a left film folding assembly and a right film folding assembly, the left film folding assembly and the right film folding assembly are respectively located on both sides of the box body passage, the left film folding assembly and the right film folding assembly each comprise a side film folding supporting plate, and the side film folding supporting plate folds the wrapping film to tightly adhere to the box body with the movement of the box body on the box body passage.

[0015] Preferably, the lower film folding mechanism, the side film folding mechanism and the end face hot melting station are sequentially connected, and the end face hot melting station is communicated with the box body passage to heat seal the wrapping film on the side of the box body.

[0016] Preferably, the end face hot melting station comprises a side hot melting web belt and a position adjusting mechanism and a mounting bracket;

[0017] The side hot melting web belt is mounted on the mounting bracket, and the position adjusting mechanism is connected to the mounting bracket to adjust the position of the side hot melting web belt.

[0018] Preferably, the position adjusting mechanism comprises a front and rear adjusting assembly and a slide rail assembly and an auxiliary jacking cylinder;

[0019] The slide rail assembly is mounted on the mounting bracket, the side hot melting web belt is mounted on the slide rail assembly, and the front and rear adjusting assembly and the auxiliary jacking cylinder are connected to the slide rail assembly.

[0020] The utility model discloses a wrapping machine, which is provided with a blocking plate in the top box station, so that when the box to be wrapped is lifted into position, the box will be placed on the step of the blocking plate, and the wrapping film has a pre-folding angle crease to facilitate film folding.

[0021] In addition, the movable cam on the top box station can limit the box during lifting to the pushing and folding station, avoiding the collapse of the box during lifting.

[0022] Furthermore, the pushing and folding station is provided with a lower film folding mechanism and a side film folding mechanism, so that the box can be completely wrapped by first pushing and heat sealing the bottom wrapping film and second pushing and heat sealing the side wrapping film when the box enters the pushing and folding station. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the overall structure schematic diagram of the wrapping machine of the utility model;

[0024] Figure 2 is the front view schematic diagram of the overall structure of the wrapping machine in the utility model;

[0025] Figure 3 is the overall structure of the wrapping machine in the utility model from the top;

[0026] Figure 4 is the overall structure of the top box station of the wrapping machine in the utility model.

[0027] Figure 5 is the side view structure schematic diagram of the top box station of the wrapping machine in the utility model;

[0028] Figure 6 is the enlarged structure schematic diagram of the guide angle of the top box plate of the wrapping machine in the utility model;

[0029] Figure 7 is the structure schematic diagram of the box feeding net belt station and the box turning and stacking station of the wrapping machine in the utility model;

[0030] Figure 8 is the structure schematic diagram of the box pushing and film folding station of the wrapping machine in the utility model;

[0031] Figure 9 is the structure schematic diagram of the vacuum film feeding station of the wrapping machine in the utility model;

[0032] Figure 10 is the structure schematic diagram of the film pulling and cutting station of the wrapping machine in the utility model;

[0033] Figure 11 is the structure schematic diagram of the end face hot melting station of the wrapping machine in the utility model.

[0034] Explanation of reference signs:

[0035] 1, box feeding net belt station; 11, conveying belt; 12, baffle;

[0036] 2, box turning and stacking station; 21, vertical box assembly; 22, box pressing assembly; 23, left feeding servo net belt; 24, right feeding servo net belt;

[0037] 3, top box station; 31, box blocking plate; 32, top box plate; 321, movable swing block; 33, top box mechanism; 34, guide angle;

[0038] 4, box pushing and film folding station; 41, box pushing assembly; 42, lower film folding mechanism; 43, left film folding assembly; 44, right film folding assembly; 45, bottom hot sealing assembly; 46, box body passage;

[0039] 5, end face hot melting station; 51, side face hot melting net belt; 511, right hot melting net belt; 512, left hot melting net belt; 521, front and rear adjusting assembly; 522, slide rail assembly; 523, auxiliary jacking air cylinder; 53, mounting bracket;

[0040] 6, film cutting station; 61, film feeding roller assembly; 62, swing rod assembly; 63, gas expansion shaft assembly; 64, active film feeding wheel assembly; 65, film pressing wheel assembly; 66, fixed knife assembly; 67, rotating knife assembly; 68, static electricity elimination assembly;

[0041] 7, vacuum film feeding station; 71, film pressing assembly; 72, left film feeding servo assembly; 73, right film feeding servo assembly; DETAILED DESCRIPTION

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details and that numerous implementation maybe made. Thus, the present application is not intended to be limited to the particular implementations described.

[0043] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0045] As Figures 1-3As shown, this utility model provides a wrapping machine, which includes an infeed conveyor belt station 1 for inputting boxes, a box-flipping and stacking station 2 for stacking boxes, a top box station 3 for lifting and conveying the boxes stacked at the box-flipping and stacking station 2, a box-pushing and film-folding station 4 for pushing and folding the boxes to wrap them, a heat-sealing station 5 for heat-sealing the end face of the wrapping film on the box, a film-pulling and film-cutting station 6 for dividing the wrapping film into unit lengths, and a vacuum film feeding station 7 for transporting the wrapping film. The top box station 3 includes a baffle plate 31, a top box plate 32, and a top box mechanism 33. The top box plate 32 can lift and convey the boxes stacked at the box-flipping and stacking station 2. The box body at position 2 is lifted up, and the first end of the top box plate 32 is connected to the box-flipping and stacking station 2. The baffle plate 31 is installed at the first end of the top box plate 32. The baffle plate 31 can prevent the box body from collapsing during the box-folding and film-folding process after the box body is lifted up. A movable swing block 321 is provided on the first end of the top box plate 32. Both the top box plate 32 and the movable swing block 321 are provided with guide angles 34 near the box-flipping and stacking station 2 to avoid damage to the wrapping film. The top box mechanism 33 is located at the second end of the top box plate 32, and the output end of the top box mechanism 33 is connected to the bottom of the second end of the top box plate 32. The top box mechanism 33 can push the top box plate 32 up and down.

[0046] In this embodiment, the box to be wrapped enters the wrapping machine through the box feeding conveyor belt station 1. The continuously input boxes to be wrapped are continuously stacked through the box flipping and stacking station 2. The stacked boxes to be wrapped are lifted to the box pushing and film folding station 4 through the top box station 3 in the wrapping machine. The bottom of the box is heat-sealed and film-wrapped through the secondary push of the box pushing and film folding station 4. After the wrapping is completed, the box enters the end face heat fusion station 5 for heat fusion sealing.

[0047] The baffle plate 31 in the top box station 3 ensures that when the box to be wrapped is lifted into position, it rests on the step of the baffle plate 31. This creates a pre-folded corner crease in the wrapping film for easy folding. It also supports the first box after lifting, preventing it from collapsing during the box-pushing and film-folding process in the box-pushing and film-folding station 4. This prevents loose boxes from collapsing and affecting the subsequent box-pushing and wrapping effect, ensuring the concentration of the boxes to be wrapped, effectively ensuring tight wrapping, and improving the aesthetics of the wrapped boxes. The baffle plate 31 is equipped with a material-supporting step that contacts the box to support it.

[0048] Furthermore, the movable swing block 321 in the top box station 3 allows the box to be wrapped to be limited by the movable swing block 321 during the process of being lifted to the box-pushing and film-folding station 4, preventing the box from collapsing and scattering during the lifting process. The guide angle 34 on the top box plate 32 and the movable swing block 321 further ensures that the wrapping film is not damaged during the film-folding process, ensuring the wrapping quality, avoiding damage to the wrapping film, and improving the aesthetics of the wrapped box.

[0049] As shown in Figures 4-6 , the top box plate 32 includes an initial state top box plate 32 and a top-up state top box plate 32, before the top box mechanism 33 works, the top box plate 32 is located on the same horizontal line with the box turning and stacking station 2, at this time the top box plate 32 is the initial state top box plate 32; after the top box mechanism 33 works, the top box plate 32 moves to the box pushing and film folding station 4, at this time the top box plate 32 is the top-up state top box plate 32; the box entering net belt station 1, the box turning and stacking station 2 and the initial state top box plate 32 are connected in turn, the vacuum film feeding station 7 is located between the initial state top box plate 32 and the top-up state top box plate 32, and the vacuum film feeding station 7 is connected with the film pulling and cutting station 6.

[0050] In this embodiment, the top box plate 32 is located on the same horizontal line with the box turning and stacking station 2 in the initial state, so that the to-be-wrapped box body can be stacked on the top box plate 32 after passing through the box entering net belt station 1 and the box turning and stacking station 2; during the movement of the top box plate 32 to the box pushing and film folding station 4, the vacuum film feeding station 7 located between the initial state top box plate 32 and the top-up state top box plate 32 feeds out the wrapping film, the top box plate 32 contacts the extended wrapping film during the movement and carries the wrapping film to the box pushing and film folding station 4, the setting position of the vacuum film feeding station 7 greatly shortens the film feeding and contacting distance of the wrapping machine, avoids the long-distance pushing and wrapping for film contacting of the traditional wrapping machine, avoids the scattering of the wrapping film during the pushing process after the film contacting, further improves the wrapping effect of the wrapping film and improves the wrapping quality.

[0051] Referring to Figure 8, the push box folding film station 4 comprises a push box assembly 41, a lower film folding mechanism 42 and a side film folding mechanism, and a box body channel 46; the jacking state top box plate 32 is located on the box body channel 46, the push box assembly 41 is located at one end of the box body channel 46 to push the box body on the jacking state top box plate 32 to move in the horizontal direction of the box body channel 46, the lower film folding mechanism 42 is located below the box body channel 46, and the side film folding mechanism is located on both sides of the box body channel 46; the lower film folding mechanism 42 can wrap and seal the bottom of the box body, and the side film folding mechanism can wrap the side of the box body. The lower film folding mechanism 42 comprises a bottom heat sealing assembly 45 and a horizontally movable lower film folding supporting plate, the lower film folding supporting plate can abut against the wrapping film on the box body to push the wrapping film to wrap the bottom of the box body, and the bottom heat sealing assembly 45 is located below the box body channel 46 to heat seal the wrapping film on the bottom of the box body. The side film folding mechanism comprises a left film folding assembly 43 and a right film folding assembly 44, the left film folding assembly 43 and the right film folding assembly 44 are respectively located on both sides of the box body channel 46, and the left film folding assembly 43 and the right film folding assembly 44 each comprise a side film folding supporting plate, the side film folding supporting plate folds the wrapping film to tightly adhere to the box body as the box body moves on the box body channel 46. The lower film folding mechanism 42, the side film folding mechanism and the end face hot melting station 5 are sequentially connected, and the end face hot melting station 5 communicates with the box body channel 46 to heat seal the wrapping film on the side of the box body.

[0052] In this embodiment, the arrangement of the bottom heat sealing assembly 45 and the lower film folding supporting plate enables the wrapping film to be first pushed into the bottom of the box body by the movable lower film folding supporting plate after the box body to be wrapped enters the push box folding film station 4, and then the wrapping film on the bottom of the box body is heat sealed by the push box assembly 41 pushing the box body into the bottom heat sealing assembly 45 after the wrapping film completely contacts the bottom of the box body. After the wrapping film on the bottom of the box body is heat sealed, the box body is pushed into the side film folding mechanism by the push box assembly 41, the wrapping film is folded and tightly adhered to the box body by the left film folding assembly 43 and the right film folding assembly 44 arranged on both sides of the box body channel 46 as the box body moves on the box body channel 46, and then the completely wrapped box body is pushed to the end face hot melting station 5 for heat sealing of the wrapping film on the side. The arrangement of the lower film folding mechanism 42 and the side film folding mechanism in the push box folding film station 4 enables the completely wrapped box body to be obtained by the first push box heat sealing of the bottom wrapping film and the second push box heat sealing of the side wrapping film after the box body to be wrapped enters the push box folding film station 4, so that the wrapping machine can adjust the film feeding distance according to different box heights when wrapping different specifications of box bodies, the front end of the wrapping film is flush with the corner, the installation position of the bottom heat sealing assembly 45 does not need to be changed to adapt to different widths of the box body, the application range and practicability of the wrapping machine are improved. Moreover, the two-stage push box wrapping of the wrapping machine avoids the tight wrapping caused by the long film receiving distance of the traditional wrapping machine, realizes the four-corner folding of the box body with a high wrapping height, and improves the appearance of the wrapped box body.

[0053] As Figure 11 shown, the end face hot melting station 5 includes a side hot melting mesh belt 51 and a position adjusting mechanism and a mounting bracket 53; the side hot melting mesh belt 51 is mounted on the mounting bracket 53, and the position adjusting mechanism is connected with the mounting bracket 53 to adjust the position of the side hot melting mesh belt 51. The position adjusting mechanism includes a front and rear adjusting assembly 521 and a slide rail assembly 522 and an auxiliary jacking cylinder 523; the slide rail assembly 522 is mounted on the mounting bracket 53, the side hot melting mesh belt 51 is mounted on the slide rail assembly 522, and the front and rear adjusting assembly 521 and the auxiliary jacking cylinder 523 are connected with the slide rail assembly 522. Among them, the side hot melting mesh belt 51 includes a left hot melting mesh belt 512 and a right hot melting mesh belt 511.

[0054] Referring to Figures 7-10 , the wrapping machine includes a conveying belt 11 and a baffle 12; the box turning and stacking station 2 includes a box standing assembly 21, a box pressing assembly 22, a left feeding servo mesh belt 23 and a right feeding servo mesh belt 24; the film pulling and cutting station 6 includes a film feeding roller assembly 61, a swing rod assembly 62, an air expansion shaft assembly 63, a driving film feeding wheel assembly 64, a film pressing wheel assembly 65, a fixed knife assembly 66, a rotating knife assembly 67 and an electrostatic elimination assembly 68, the wrapping film enters through the film feeding roller assembly 61, passes through the swing rod assembly 62, the air expansion shaft assembly 63, the driving film feeding wheel assembly 64 and the film pressing wheel assembly 65 to enter the fixed knife assembly 66 and the rotating knife assembly 67, cuts the wrapping film, divides the wrapping film into a specified length and then enters the vacuum film feeding station, and the electrostatic elimination assembly 68 is arranged on one side of the film pressing wheel assembly 65 to effectively eliminate static electricity generated in the cutting process of the wrapping film; the vacuum film feeding station 7 includes a film pressing assembly 71, a left film feeding servo assembly 72 and a right film feeding servo assembly 73, and the film pressing assembly 71 is arranged on each of the left film feeding servo assembly 72 and the right film feeding servo assembly 73 to avoid the movement of the wrapping film; wherein the baffle 12 is arranged on both sides of the conveying belt 11, the conveying belt 11 is connected with the left feeding servo mesh belt 23 and the right feeding servo mesh belt 24 of the box turning and stacking station 2, and the box standing assembly 21 and the box pressing assembly 22 are arranged on the left feeding servo mesh belt 23 and the right feeding servo mesh belt 24 to realize the standing and stacking of the box body. Further, the wrapping film is cut into a wrapping film of a specified length by the film pulling and cutting station 6 arranged in the wrapping machine, and then the wrapping film is conveyed to a wrapping position by the vacuum film feeding belt.

[0055] Based on the above-mentioned wrapping machine structure, the utility model also provides a use method of the wrapping machine, which includes the following steps:

[0056] A, film pulling and cutting: the film pulling and cutting station 6 divides the wrapping film into a plurality of wrapping films of a unit length according to the box body and transfers the divided wrapping film to the vacuum film feeding station 7;

[0057] B, film feeding: after the unit length of the divided wrapping film is fed to the vacuum film feeding station 7 beyond the end face of the box to be wrapped, the box station 3 lifts the box to the box pushing and film folding station 4, the box contacts the wrapping film when passing through the vacuum film feeding station 7, and the wrapping film is lifted together with the box to the box pushing and film folding station 4;

[0058] C, first box pushing: the box is located at the lower film folding mechanism 42 in the box pushing and film folding station 4, the lower film folding mechanism 42 pushes the wrapping film into the bottom of the box, and after the wrapping film is tightly attached to the bottom of the box, the box pushing assembly 41 pushes the box horizontally to the bottom heat sealing assembly 45 to heat seal the wrapping film at the bottom of the box;

[0059] D, second box pushing: after the bottom wrapping film of the box is heat sealed, the box pushing assembly 41 pushes the box again to move to the side film folding mechanism, and the side film folding mechanism makes the wrapping film tightly attached to the side and top of the box;

[0060] E, side heat sealing and forming: after the above steps A-D, the box waits for the next box to be pushed into the end face hot melting station 5, and the box is subjected to side and top wrapping film heat sealing and forming at the section hot melting station; the next box repeats the above steps A-D, and the next box is pushed after wrapping after the second box pushing to wait for the box to enter the end face hot melting station 5. In step B, the length of the wrapping film fed by the vacuum film feeding station 7 is not less than the sum of the height and the corner length of the carton.

[0061] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0062] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wrapping machine comprising a box feeding net belt station (1) for feeding a box, a box turning and stacking station (2) for stacking the boxes, a box lifting conveyor for lifting the boxes stacked in the box turning and stacking station (3), a box pushing and film folding station (4) for pushing the boxes and folding the film around the boxes, an end face hot melting station (5) for hot melting the film on the end faces of the boxes, a film pulling and cutting station (6) for cutting the film into a unit length, and a vacuum film feeding station (7) for feeding the film, characterized in that, The top box station (3) comprises a box blocking plate (31), a top box plate (32) and a top box mechanism (33), the top box plate (32) can lift the box body of the box turning and stacking station (2), the first end of the top box plate (32) is connected with the box turning and stacking station (2), the box blocking plate (31) is installed on the first end of the top box plate (32), the box blocking plate (31) can prevent the box body from collapsing during the process of pushing and folding the film after the box body is lifted, the first end of the top box plate (32) is provided with a movable swing block (321), and the top box plate (32) and the movable swing block (321) are both provided with a guide angle (34) near the box turning and stacking station (2) to avoid damage to the wrapping film; The top box mechanism (33) is located at the second end of the top box plate (32), and the output end of the top box mechanism (33) is connected with the bottom of the second end of the top box plate (32), and the top box mechanism (33) can push the top box plate (32) to rise and fall.

2. The wrapping machine according to claim 1, characterized in that The box blocking plate (31) is provided with a material supporting step, which can contact the box body to support the box body.

3. The wrapping machine according to claim 1, characterized in that, The top box plate (32) comprises an initial state and a lifting state, before the top box mechanism (33) works, the top box plate (32) is connected with the box turning and stacking station (2), at this time, the top box plate (32) is in the initial state; After the top box mechanism (33) works, the top box plate (32) moves to the box pushing and film folding station (4), at this time, the top box plate (32) is in the lifting state; The box pushing and film folding station (4) comprises a box pushing assembly (41), a lower film folding mechanism (42) and a side film folding mechanism, and a box body channel (46); 4. The wrapping machine of claim 1, wherein The top box plate (32) in the lifting state is located on the box body channel (46), the box pushing assembly (41) is located at one end of the box body channel (46) to push the box body on the top box plate (32) in the lifting state to move in the horizontal direction of the box body channel (46), the lower film folding mechanism (42) is located below the box body channel (46), the side film folding mechanism is located on both sides of the box body channel (46), the lower film folding mechanism (42) can wrap and heat seal the bottom of the box body, and the side film folding mechanism can wrap the side of the box body. The lower film folding mechanism (42) comprises a bottom heat sealing assembly (45) and a horizontally movable lower film supporting plate, the lower film supporting plate can abut against the wrapping film on the box body to push the wrapping film to wrap the bottom of the box body, and the bottom heat sealing assembly (45) is located below the box body channel (46) to heat seal the wrapping film on the bottom of the box body.

5. The wrapping machine according to claim 4, characterized in that, ​ 6. The wrapping machine according to claim 4, characterized in that, The side film folding mechanism comprises a left film folding assembly (43) and a right film folding assembly (44), which are respectively arranged on the two sides of the box passage (46), and each of the left film folding assembly and the right film folding assembly comprises a side film folding supporting plate, which folds and clamps the wrapping film to the box with the movement of the box on the box passage.

7. The wrapping machine of claim 4, wherein The lower film folding mechanism (42), the side film folding mechanism and the end face hot melting station (5) are sequentially connected, the end face hot melting station (5) is communicated with the box passage (46) to heat seal the wrapping film on the side of the box.

8. The wrapping machine of claim 7, wherein The end face hot melting station (5) comprises a side hot melting net belt (51), a position adjusting mechanism and a mounting bracket (53). The side hot melting net belt (51) is mounted on the mounting bracket (53), and the position adjusting mechanism (52) is connected with the mounting bracket (53) to adjust the position of the side hot melting net belt (51).

9. The wrapping machine according to claim 8, characterized in that, The position adjusting mechanism comprises a front and rear adjusting assembly (521), a slide rail assembly (522) and an auxiliary jacking cylinder (523). The slide rail assembly (522) is mounted on the mounting bracket (53), the side hot melting net belt (51) is mounted on the slide rail assembly (522), the front and rear adjusting assembly (521) is connected with the slide rail assembly (522), and the output end of the auxiliary jacking cylinder (523) is connected with the mounting bracket (53).

Images