A multifunctional wrapping film packaging machine

Abstract

The present invention discloses a multifunctional wrapping and film-wrapping integrated machine, comprising a container feeding unit, a wrapping machine unit, a carton group and a bottle group transition conveying unit, a film-wrapping machine film-wrapping unit, and a film-wrapping machine heat shrinking unit; the carton group and the bottle group transition conveying unit structure is: a retractable chain plate support bracket is provided in the frame, a first lifting mechanism is provided between the chain plate support bracket and the frame, a conveying chain plate is wound around the chain plate support bracket, a first driving motor is provided on the frame below the conveying chain plate, a first driving gear is sleeved on the output shaft of the first driving motor, two lower box clamping conveyor belts are provided on the frame at the transition conveying station, and the two lower box clamping conveyor belts can move horizontally under the drive of the first width adjustment mechanism; two upper box clamping conveyor belts are provided on the frame above the transition conveying station. The present invention has the advantage of being able to produce products of various specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a multifunctional wrapping film packaging integrated machine. Background Art

[0002] As the beverage and drinking water market is saturated, more and more manufacturers are pursuing differentiation in drinking water and beverage packaging, and considering the need for long-distance transportation, the requirements for container packaging are getting higher and higher. At present, there is no equipment that can cover the mainstream packaging specifications in the market, and can realize the production of single film-wrapped products, the production of single carton-wrapped products, and the production of film-wrapped products after carton-wrapped. Summary of the invention

[0003] The object of the present invention is to provide a multifunctional film wrapping integrated machine which can realize the production of individual film wrapped products, the production of individual carton wrapped products, and the production of film wrapped products after carton wrapping.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multifunctional wrapping and film packaging integrated machine, comprising a container feeding unit, a wrapping machine unit, a carton group and a bottle group transition conveying unit, a film wrapping machine film wrapping unit, and a film wrapping machine heat shrinking unit which are sequentially arranged along the product conveying direction; the structure of the carton group and the bottle group transition conveying unit comprises: a frame arranged between the wrapping machine unit and the film wrapping machine film wrapping unit, a retractable chain plate support bracket is arranged in the frame, a first lifting mechanism which can drive the chain plate support bracket to move upward to a transition conveying station is arranged between the chain plate support bracket and the frame, a conveying chain plate is wound around the chain plate support bracket, a first driving motor is arranged on the frame below the conveying chain plate, a first driving gear meshing with the conveying chain plate is mounted on the output shaft of the first driving motor, and the first driving motor can drive the conveying chain plate supported by the chain plate support bracket which is moved to the transition conveying station and stretched out through the first driving gear. The two lower box-clamping conveyor belts are arranged on the frame at the transition conveying station, and the two lower box-clamping conveyor belts can be moved horizontally toward each other to the transition conveying station under the drive of the first width adjustment mechanism, so that the two lower box-clamping conveyor belts can receive the carton group output by the wrapping machine unit, or move horizontally opposite to each other to the left and right sides of the transition conveying station, so that the two lower box-clamping conveyor belts do not hinder the chain plate supporting bracket from moving up to the transition conveying station; two upper box-clamping conveyor belts are arranged on the frame above the transition conveying station, and the two upper box-clamping conveyor belts just correspond to the two lower box-clamping conveyor belts moved to the transition conveying station one by one. The two upper box-clamping conveyor belts can be moved downward under the drive of the second lifting mechanism to clamp the two lower box-clamping conveyor belts moved to the transition conveying station in an upper and lower relative clamping state, so as to clamp and convey the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine.

[0005] Furthermore, in the aforementioned multifunctional wrapping film packaging integrated machine, the wrapping machine used in the wrapping machine unit is a longitudinal wrapping machine.

[0006] Furthermore, the aforementioned multifunctional wrapping film packaging integrated machine, wherein: the structure of the first lifting mechanism includes: two first lifting screw rods distributed on the left and right are respectively vertically fixedly installed at the front and rear ends of the bottom of the chain plate supporting bracket, and two support seats distributed on the left and right are respectively arranged at the front and rear ends of the frame below the chain plate supporting bracket, and a first worm gear that can rotate freely and cannot move axially is movably supported in each support seat, and each first lifting screw rod corresponds to each first worm gear one by one, and each first lifting screw rod passes downward through the corresponding first worm gear and is threadedly connected to the corresponding first worm gear, and a first worm gear is also movably supported at the front and rear ends of the frame below the chain plate supporting bracket, and each first worm gear is simultaneously connected to the two first worm gears on the same side A worm gear is meshed with each other, and a second worm gear is fixedly mounted on one side end of the two first worm gears, each second worm gear is respectively meshed with a second worm gear movably supported on the frame, and the two second worm gears are coaxially connected to the intermediate drive shaft through a coupling, and a third worm gear is fixedly mounted on the intermediate drive shaft, and the third worm gear is meshed with a third worm gear driven to rotate by a second drive motor. The second drive motor drives the first worm gears to rotate synchronously through the third worm gear, the third worm gear, the intermediate drive shaft, the second worm gears, the second worm gears and the first worm gears, thereby driving the first lifting screws to move upward or downward synchronously, thereby driving the chain plate support bracket to move upward to the transition conveying station or downward to below the transition conveying station.

[0007] Furthermore, the aforementioned multifunctional wrapping film packaging integrated machine, wherein: the structure of the chain plate supporting bracket includes: an intermediate bracket for installing a first lifting screw rod, two first sliding brackets that can slide left and right relative to each other are slidably arranged on the intermediate bracket, a first limiting component for limiting the outward sliding position of the first sliding bracket relative to the intermediate bracket is respectively arranged between the intermediate bracket and each first sliding bracket, and a first fixing component for locking and fixing the first sliding bracket and the intermediate bracket is also respectively arranged between the intermediate bracket and each first sliding bracket; a second sliding bracket is respectively slidably arranged on each first sliding bracket, a second limiting component for limiting the outward sliding position of the second sliding bracket relative to the first sliding bracket is respectively arranged between each second sliding bracket and the corresponding first sliding bracket, and a second fixing component for locking and fixing the second sliding bracket and the corresponding first sliding bracket is also respectively arranged between each second sliding bracket and the corresponding first sliding bracket.

[0008] Furthermore, the aforementioned multifunctional wrapping film packaging machine, wherein: the structure of the first limiting component includes: a first limiting block is arranged on the side wall of the first sliding bracket opposite to the middle bracket, and a second limiting block that can cooperate with the first limiting block to limit is arranged on the outer end of the middle bracket; the structure of the first fixing component includes: a first locking hole is arranged on the side wall of the first sliding bracket, and a second locking hole is arranged on the side wall of the middle bracket, when the first sliding bracket moves outward relative to the middle bracket until the first limiting block abuts against the second limiting block, the first locking hole and the second locking hole correspond exactly, and a first locking bolt for locking and fixing the first sliding bracket and the middle bracket is detachably installed in the corresponding first locking hole and the second locking hole.

[0009] Furthermore, the aforementioned multifunctional wrapping film packaging integrated machine, wherein: the structure of the second limiting component includes: a third limiting block is arranged on the side wall of the second sliding bracket opposite to the first sliding bracket, and a fourth limiting block that can cooperate with the third limiting block for limiting is arranged on the side wall of the first sliding bracket opposite to the side wall of the second sliding bracket; the structure of the second fixing component includes: a third locking hole is arranged on the side wall of the second sliding bracket, and a fourth locking hole is arranged on the side wall of the first sliding bracket, when the second sliding bracket moves outward relative to the first sliding bracket until the third limiting block abuts against the fourth limiting block, the third locking hole and the fourth locking hole correspond exactly, and a second locking bolt for locking and fixing the first sliding bracket and the second sliding bracket is detachably installed in the corresponding third locking hole and the fourth locking hole.

[0010] Furthermore, the aforementioned multifunctional wrapping film packaging integrated machine, wherein: the structure of the first width adjustment mechanism includes: a first guide rod running left and right is respectively provided at the front and rear ends of the frame at the transition conveying station, the lower box conveying brackets of the two lower box conveyor belts can be slidably arranged on the two first guide rods, and an internal threaded sleeve running left and right is respectively provided at the front and rear ends of the lower box conveying brackets of the two lower box conveyor belts, the two internal threaded sleeves located on the front side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the rear side are coaxially arranged and have opposite thread rotation directions, the thread rotation directions of the two internal threaded sleeves located on the left side are the same, and the thread rotation directions of the two internal threaded sleeves located on the right side are the same, a first positive and negative threaded screw rod movably supported on the frame and threadedly connected to the two corresponding internal threaded sleeves is commonly penetrated in the two internal threaded sleeves located on the front side, and a movable support is commonly penetrated in the two internal threaded sleeves located at the rear The cam is an assembly made of a plurality of gears, each of which is connected to a plurality of gears, each of which is a plurality of gears having a plurality of gears, each of which is a plurality of gears having a plurality of gears, and each of which is a plurality of gears.

[0011] Furthermore, the aforementioned multifunctional wrapping film packaging integrated machine, wherein: the structure of the second lifting mechanism includes: a lifting bracket for installing two upper box clamping conveyor belts, two second lifting screw rods are vertically fixedly installed at the front and rear ends of the lifting bracket, each second lifting screw rod passes upward through the top plate of the frame and is threadedly mounted on a driven sprocket, all driven sprockets are rotatably but not axially movable and are installed on the frame, a driving shaft is vertically movably supported on one side of the top of the frame, a driving sprocket and a lifting worm gear are fixedly mounted on the driving shaft, a driving chain is wound between the driving sprocket and each driven sprocket, and a gear meshing with the lifting worm gear is also horizontally and laterally movably supported on the frame. The lifting worm has a second handle at the outer end of the lifting worm. When the second handle drives the lifting worm to rotate, the lifting worm drives the active sprocket to rotate through the lifting worm wheel and the driving shaft. The active sprocket drives the driven sprockets to rotate synchronously through the driving chain. When the driven sprockets rotate forward or reverse synchronously, they can drive the second lifting screws to rise or fall synchronously, and synchronously drive the lifting bracket to move upward or downward, thereby driving the two upper box-clamping conveyor belts to move downward to the two lower box-clamping conveyor belts moved to the transition conveying station to clamp the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine, or drive the two upper box-clamping conveyor belts to move upward to release the carton group.

[0012] Furthermore, in the aforementioned multifunctional wrapping film packaging machine, the two upper box conveyor belts can move horizontally toward or away from each other in the lifting bracket under the drive of the second width adjustment mechanism, and the structure of the second width adjustment mechanism includes: a second guide rod running left and right is respectively provided at the front and rear ends of the lifting bracket, the upper box conveying brackets of the two upper box conveyor belts can be slidably arranged left and right on the two second guide rods, and an internal threaded sleeve running left and right is respectively provided at the front and rear ends of the upper box conveying brackets of the two upper box conveyor belts, the two internal threaded sleeves located on the front side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the rear side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the left side have the same thread rotation direction, the two internal threaded sleeves located on the right side have the same thread rotation direction, and a movable support is commonly provided in the two internal threaded sleeves located at the front side. The gear train is a gear that can be adjusted according to the situation that the gear train is in the gear of the first and second gears and is used for the gear train of the second transmission gear and the gear train of the second transmission gear.

[0013] Through the implementation of the above technical scheme, the beneficial effects of the present invention are: (1) it can realize the production of individual film-wrapped products, the production of individual carton wrapped products, and the production of film-wrapped products after carton wrapping, and has a wide range of production applications; (2) the carton group or bottle group output by the wrapping machine unit can be smoothly transferred to the film wrapping unit of the film wrapping machine, and the working stability is high; (3) the product integration is high, and the equipment footprint is reduced while achieving the same function; (4) when producing film-wrapped products after carton wrapping, the film of the film wrapping unit of the film wrapping machine will cover the gaps between the side folds of the carton wrapped and output by the wrapping machine unit, thereby preventing dust and mosquitoes from entering the carton through the gaps between the side folds of the carton, thereby improving the moisture-proof and insect-proof effect of the carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a multifunctional wrapping film packaging machine according to the present invention.

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the carton group and bottle group transition conveying unit shown in FIG.

[0016] Figure 3 for Figure 2 Schematic diagram of the structure from the left view direction.

[0017] Figure 4 for Figure 2 AA section view.

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of the H site shown in FIG.

[0019] Figure 6 It is a schematic diagram of the use status of the multifunctional film wrapping integrated machine described in the present invention when being used for transitionally conveying a bottle group.

[0020] Figure 7 It is a schematic diagram of the use status of the multifunctional film wrapping integrated machine described in the present invention when being used for transitional conveying of a carton group.

[0021] Figure 8 for Figure 2 Schematic diagram of the positional relationship between the middle upper box conveyor belt and the lower box conveyor belt.

[0022] Fig. 9 for Figure 8 Schematic diagram of the structure of the BB section shown in .

[0023] Fig.10 for Figure 8 Schematic diagram of the structure of the CC section shown in .

[0024] Fig.11 The schematic diagram shows the usage status when the chain support bracket behind the conveyor chain is in a retracted state in order to hide the status.

[0025] Fig.12 The schematic diagram shows the chain support bracket behind the conveyor chain in the unfolded state. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, and thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12As shown, the multifunctional wrapping and film packaging integrated machine comprises a container feeding unit 111, a wrapping machine unit 112, a carton group and bottle group transition conveying unit 113, a film wrapping machine film wrapping unit 114, and a film wrapping machine heat shrinking unit 115 which are sequentially arranged along the product conveying direction; the structure of the carton group and bottle group transition conveying unit 113 comprises: a frame 1 arranged between the wrapping machine unit 112 and the film wrapping machine film wrapping unit 114, a retractable chain plate support bracket 2 is arranged in the frame 1, a first lifting mechanism which can drive the chain plate support bracket 2 to move upward to the transition conveying station is arranged between the chain plate support bracket 2 and the frame 1, a conveying chain plate 3 is wound around the chain plate support bracket 2, a first driving motor 4 is arranged on the frame 1 below the conveying chain plate 3, a first driving gear meshing with the conveying chain plate 3 is mounted on the output shaft of the first driving motor 4, and the first driving motor 4 can drive the chain plate support bracket 2 which is moved to the transition conveying station and stretched and unfolded through the first driving gear. The conveyor chain plate 3 is rotated so that the conveyor chain plate 3 can transitionally convey the bottle group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine. Two lower box clamping conveyor belts 5 distributed on the left and right are arranged on the frame 1 at the transition conveying station. The two lower box clamping conveyor belts 5 can be horizontally moved toward each other to the transition conveying station driven by the first width adjustment mechanism so that the two lower box clamping conveyor belts can receive the carton group output by the wrapping machine unit, or horizontally move back to back to the left and right sides of the transition conveying station so that the two lower box clamping conveyor belts 5 It does not hinder the chain plate support bracket 2 from moving up to the transition conveying station; two upper box clamping conveyor belts 6 distributed on the left and right are arranged on the frame 1 above the transition conveying station, and the two upper box clamping conveyor belts 6 just correspond to the two lower box clamping conveyor belts 5 moved to the transition conveying station one by one. Driven by the second lifting mechanism, the two upper box clamping conveyor belts 6 can move downward to the two lower box clamping conveyor belts 5 moved to the transition conveying station in an upper and lower relative clamping state to clamp and convey the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine;

[0029] In this embodiment, the structure of the first lifting mechanism includes: two first lifting screw rods 7 distributed on the left and right are respectively vertically fixedly installed at the front and rear ends of the bottom of the chain plate support bracket 2, and two support seats 8 distributed on the left and right are respectively arranged at the front and rear ends of the frame below the chain plate support bracket 2. A first worm gear 9 that can rotate freely and cannot move axially is movably supported in each support seat 8. Each first lifting screw rod 7 corresponds to each first worm gear 9 one by one. Each first lifting screw rod 7 passes downward through the corresponding first worm gear 9 and is threadedly connected to the corresponding first worm gear 9. A first worm 10 is also movably supported at the front and rear ends of the frame 1 below the chain plate support bracket 2. Each first worm 10 is simultaneously meshed with the two first worm gears 9 on the same side. A second worm gear is fixedly mounted on one end portion, each second worm gear is meshed with a second worm movably supported on the frame, and the two second worm gears are coaxially connected to the intermediate drive shaft 11 through a coupling. A third worm gear is fixedly mounted on the intermediate drive shaft 11, and the third worm gear is meshed with a third worm driven to rotate by a second drive motor 12. The second drive motor 12 drives each first worm gear 9 to rotate synchronously through the third worm, the third worm gear, the intermediate drive shaft 11, each second worm, each second worm gear and each first worm 10, thereby driving each first lifting screw rod 7 to move upward or downward synchronously, thereby driving the chain plate support bracket 2 to move upward to the transition conveying station or move downward to below the transition conveying station. The above lifting mechanism has a simple structure and is easy to install and maintain;

[0030] In this embodiment, the structure of the chain plate support bracket 2 includes: an intermediate bracket 21 for mounting the first lifting screw rod 7, two first sliding brackets 22 that can slide relative to each other left and right are slidably arranged on the intermediate bracket 21, and a first limiting component for limiting the outward sliding position of the first sliding bracket 22 relative to the intermediate bracket 21 is respectively provided between the intermediate bracket 21 and each first sliding bracket 22, and a first fixing member for locking and fixing the first sliding bracket 22 and the intermediate bracket 21 is also respectively provided between the intermediate bracket 21 and each first sliding bracket 22. Components; a second sliding bracket 23 is slidably arranged on each first sliding bracket 22, and a second limiting component for limiting the outward sliding position of the second sliding bracket 23 relative to the first sliding bracket 22 is respectively arranged between each second sliding bracket 23 and the corresponding first sliding bracket 22, and a second fixing component for locking and fixing the second sliding bracket 23 and the corresponding first sliding bracket 22 is also respectively arranged between each second sliding bracket 23 and the corresponding first sliding bracket 22; the above-mentioned chain plate support bracket has a simple structure and is easy to install and maintain;

[0031] In this embodiment, the structure of the first limiting assembly includes: a first limiting block 24 is arranged on the side wall of the first sliding bracket 22 opposite to the middle bracket 21, and a second limiting block 25 that can cooperate with the first limiting block 24 to abut against the limiting position is arranged on the outer end of the middle bracket 21; the structure of the first fixing assembly includes: a first locking hole is arranged on the side wall of the first sliding bracket 22, and a second locking hole is arranged on the side wall of the middle bracket 21. When the first sliding bracket 22 moves outward relative to the middle bracket 21 until the first limiting block 24 abuts against the second limiting block 25, the first locking hole and the second locking hole just correspond to each other, and a first locking bolt 26 for locking and fixing the first sliding bracket 22 and the middle bracket 21 is detachably installed in the corresponding first locking hole and the second locking hole. The above-mentioned limiting assembly and fixing assembly have simple structures and are easy to install and maintain.

[0032] In this embodiment, the structure of the second limiting assembly includes: a third limiting block 27 is arranged on the side wall of the second sliding bracket 23 opposite to the first sliding bracket 22, and a fourth limiting block 28 that can cooperate with the third limiting block 27 to abut against the limiting position is arranged on the side wall of the first sliding bracket 22 opposite to the side wall of the second sliding bracket 27; the structure of the second fixing assembly includes: a third locking hole is arranged on the side wall of the second sliding bracket 23, and a fourth locking hole is arranged on the side wall of the first sliding bracket 22. When the second sliding bracket 23 moves outward relative to the first sliding bracket 22 until the third limiting block 27 abuts against the fourth limiting block 28, the third locking hole and the fourth locking hole just correspond to each other, and a second locking bolt 29 for locking and fixing the first sliding bracket 22 and the second sliding bracket 23 can be detachably installed in the corresponding third locking hole and fourth locking hole. The above-mentioned limiting assembly and fixing assembly have simple structures and are easy to install and maintain.

[0033] In this embodiment, the structure of the first width adjustment mechanism includes: a left-right first guide rod 30 is respectively arranged at the front and rear ends of the frame 1 at the transition conveying station, the lower box conveying brackets 51 of the two lower box conveying belts 5 can be slidably arranged on the two first guide rods 30, and a left-right first internally threaded sleeve 31 is respectively arranged at the front and rear ends of the lower box conveying brackets 51 of the two lower box conveying belts 5. The two first internally threaded sleeves 31 located at the front side are coaxially arranged and have opposite thread rotation directions, and the two first internally threaded sleeves 31 located at the rear side are coaxially arranged and have opposite thread rotation directions. The first internally threaded sleeves 31 are coaxially arranged and have opposite thread rotation directions. The thread rotation directions of the two first internally threaded sleeves 31 on the left are the same, and the thread rotation directions of the two first internally threaded sleeves 31 on the right are the same. A first positive and negative threaded rod 32 movably supported on the frame 1 and threadedly connected to the two corresponding first internally threaded sleeves 31 is commonly penetrated in the two first internally threaded sleeves 31 on the front side, and a first positive and negative threaded rod 32 movably supported on the frame 1 and threadedly connected to the two corresponding first internally threaded sleeves 31 is commonly penetrated in the two first internally threaded sleeves 31 on the rear side. Corresponding to the second forward and reverse screw rod 33 threadedly connected to the first internal threaded sleeve 31, a first handle 34 is provided at the outer end of the first forward and reverse screw rod 32 or the second forward and reverse screw rod 33, and a first driven gear is fixedly mounted on the first forward and reverse screw rod 32 and the second forward and reverse screw rod 33 respectively, and a first driven chain is wound between the two first driven gears. When the first handle 34 drives the corresponding forward and reverse screw rod to rotate, the corresponding forward and reverse screw rod can drive the other forward and reverse screw rod to rotate synchronously through the first driven gear and the first driven chain, and the first forward and reverse screw rod is rotated synchronously. During the synchronous forward or reverse rotation of the screw rod 32 and the second forward and reverse screw rod 33, the two lower box clamping conveyor belts 5 can move horizontally toward each other along the first guide rod 30 to the transition conveying station through the corresponding first internal threaded sleeve 31 set in the lower box clamping conveying bracket 51, so that the two lower box clamping conveyor belts can receive the carton group output by the wrapping machine unit, or move horizontally away from each other to the left and right sides of the transition conveying station, so that the two lower box clamping conveyor belts do not hinder the chain plate support bracket 2 from moving up to the transition conveying station. The above-mentioned width adjustment mechanism has a simple structure and is easy to install and maintain;

[0034] In this embodiment, the structure of the second lifting mechanism includes: a lifting bracket 35 for installing two upper box-clamping conveyor belts 6, two second lifting screw rods 36 are vertically fixedly installed at the front and rear ends of the lifting bracket 35, each second lifting screw rod 36 passes upward through the top plate of the frame 1 and is threadedly mounted with a driven sprocket 37, all driven sprockets 37 are rotatably installed on the frame 1 but cannot be axially moved, a driving shaft 38 is vertically movably supported on one side of the top of the frame 1, a driving sprocket 38 and a lifting worm wheel are fixedly mounted on the driving shaft 38, a driving chain 40 is wound between the driving sprocket 39 and each driven sprocket 37, and a lifting worm 41 meshing with the lifting worm wheel is also horizontally and laterally supported on the frame 1. At the outer end of the lifting worm 41 A second handle 42 is provided on the part. When the second handle 42 drives the lifting worm 41 to rotate, the lifting worm 41 drives the driving sprocket 39 to rotate through the lifting worm wheel and the driving shaft 38. The driving sprocket 39 drives the driven sprockets 37 to rotate synchronously through the driving chain 40. When the driven sprockets 37 rotate forward or reverse synchronously, they can drive the second lifting screws 36 to rise or fall synchronously, and synchronously drive the lifting bracket 35 to move upward or downward, thereby driving the two upper box clamping conveyor belts 6 to move downward to the two lower box clamping conveyor belts 5 moved to the transition conveying station to clamp the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine, or drive the two upper box clamping conveyor belts 6 to move upward to release the carton group. The above lifting mechanism has a simple structure and is easy to install and maintain.

[0035] In the present embodiment, the two upper box-clamping conveyor belts 6 can move horizontally toward or away from each other in the lifting bracket 35 driven by the second width adjustment mechanism, and the structure of the second width adjustment mechanism includes: a second guide rod 43 running left and right is respectively arranged at the front and rear ends of the lifting bracket 35, the upper box-clamping conveying brackets 61 of the two upper box-clamping conveyor belts 6 can be slidably arranged on the two second guide rods 43 left and right, and a second internally threaded sleeve 44 running left and right is respectively arranged at the front and rear ends of the upper box-clamping conveying brackets 61 of the two upper box-clamping conveyor belts 6, the two second internally threaded sleeves 44 located on the front side are coaxially arranged and have opposite thread rotation directions, the two second internally threaded sleeves 44 located on the rear side are coaxially arranged and have opposite thread rotation directions, the two second internally threaded sleeves 44 located on the left side have the same thread rotation direction, and the two second internally threaded sleeves 44 located on the right side have the same thread rotation direction, and a movably supported sleeve 43 is commonly penetrated in the two second internally threaded sleeves 44 located on the front side and is simultaneously connected to the two corresponding second internally threaded sleeves A third forward and reverse threaded screw rod 45 is threadedly connected to the second inner threaded sleeves 44, and a fourth forward and reverse threaded screw rod 46 is movably supported on the lifting bracket 35 and threadedly connected to the two corresponding second inner threaded sleeves 44. A third handle 47 is provided at the outer end of the third forward and reverse threaded screw rod 45 or the fourth forward and reverse threaded screw rod 46. A second driven gear is fixedly sleeved on the third forward and reverse threaded screw rod 45 and the fourth forward and reverse threaded screw rod 46 respectively, and a second driven gear is wound around the two second driven gears. The second driven chain, when the third handle 47 drives the corresponding forward and reverse screw to rotate, the corresponding forward and reverse screw can drive another forward and reverse screw to rotate synchronously through the second driven gear and the second driven chain. In the process of synchronous forward or reverse rotation of the third forward and reverse screw 45 and the fourth forward and reverse screw 46, the two upper box conveyor belts 6 can move horizontally toward or away from each other along the second guide rod 43 through the corresponding second internal threaded sleeve 44 arranged in the upper box conveying bracket 61. The above-mentioned width adjustment mechanism has a simple structure and is easy to install and maintain.

[0036] It can realize the production of single film-wrapped products, single carton-wrapped products, and film-wrapped products after carton-wrapped.

[0037] Container feeding unit 111, wrapping machine unit 112, carton group and bottle group transition conveying unit 113, film wrapping machine film wrapping unit 114, and film wrapping machine heat shrinking unit 115;

[0038] When producing individual film-wrapped products: first adjust the carton group and bottle group transition conveying unit 113 to a working state suitable for conveying the bottle group. The specific adjustment process of the carton group and bottle group transition conveying unit 113 is as follows: first raise the height of the two upper box clamping conveyor belts 6 through the second lifting mechanism, and then widen the width of the two lower box clamping conveyor belts 5 through the first width adjustment mechanism, so that the two upper box clamping conveyor belts 6 and the two lower box clamping conveyor belts 5 do not hinder the conveying of the bottle group by the conveying chain plate, and then use the first lifting mechanism to move the chain plate support bracket in a retracted state upward from between the two lower box clamping conveyor belts 5 to the transition conveying station, and after the chain plate support bracket 2 is in the transition conveying station, unfold the chain plate support bracket 2 to support the conveying chain plate 3, and then start the first drive motor 4. The first drive motor 4 drives the conveying chain plate 3 to rotate through the first driving gear, so that the conveying chain plate 3 can smoothly transition and convey the bottle group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine;

[0039] The specific operation of the second lifting mechanism raising the two upper box-clamping conveyor belts 6 is as follows: the second handle 42 is rotated to make the second handle 42 drive the lifting worm 41 to rotate, the lifting worm 41 drives the driving sprocket 39 to rotate through the lifting worm gear and the driving shaft 38, the driving sprocket 39 drives the driven sprockets 37 to rotate synchronously through the driving chain 40, the driven sprockets 37 synchronously rotate forward to drive the second lifting screws 36 to rise synchronously, and synchronously drive the lifting bracket 35 to move upward, thereby driving the two upper box-clamping conveyor belts 6 to move upward to the point where they do not hinder the conveying chain plate from conveying the bottle group;

[0040] The specific operation of the first width adjustment mechanism to adjust the width of the two lower clamping box conveyor belts 5 is as follows: rotate the first handle 34 to make the first handle 34 drive the corresponding positive and negative threaded rod to rotate, and the corresponding positive and negative threaded rod drives another positive and negative threaded rod to rotate synchronously through the first driven gear and the first driven chain. During the synchronous forward rotation of the first positive and negative threaded rod 32 and the second positive and negative threaded rod 33, the two lower clamping box conveyor belts 5 are horizontally moved back and forth to the left and right sides of the transition conveying station along the first guide rod 30 through the corresponding first internal threaded sleeve 31 set in the lower clamping box conveying bracket 51, so that the two lower clamping box conveyor belts 5 do not hinder the chain plate support bracket 2 from moving up to the transition conveying station;

[0041] The specific operation of the first lifting mechanism raising the chain support bracket and the conveying chain is as follows: start the second drive motor 12, so that the second drive motor 12 drives the first worm wheels 9 to rotate forward synchronously through the third worm, the third worm wheel, the intermediate drive shaft 11, the second worms, the second worm wheels and the first worms 10, thereby driving the first lifting screws 7 to move upward synchronously, thereby driving the chain support bracket 2 to move upward to the transition conveying station;

[0042] After the carton group and bottle group transition conveying unit 113 is adjusted to a working state suitable for conveying the bottle group, the bottle is conveyed to the wrapping machine unit 112 through the container feeding unit 111. The wrapping machine unit 112 does not wrap the bottle group with cartons but only conveys the bottle group. After the wrapping machine unit 112 conveys the bottle group to the conveying chain plate 3, the conveying chain plate 3 will smoothly transition and convey the bottle group output by the wrapping machine unit to the film wrapping unit 114 of the film wrapping machine for film wrapping. After the film wrapping unit 114 wraps the bottle group, it is conveyed to the film wrapping machine heat shrink unit 115. The film wrapping machine heat shrink unit 115 shrinks the film wrapped outside the bottle group and wraps it on the bottle group, thereby completing the individual film wrapping of the bottle.

[0043] When producing individual carton wrapped products: first adjust the carton group and bottle group transition conveying unit 113 to a working state suitable for conveying the carton group. The specific adjustment process of the carton group and bottle group transition conveying unit 113 is as follows: first stop the action of the first drive motor 4, then retract the chain support bracket 2, and then move the chain support bracket 2 and the conveying chain plate 3 downward to below the transition conveying station through the first lifting mechanism, so that the chain support bracket 2 and the conveying chain plate 3 do not hinder the two lower box clamping conveyor belts 5 from moving to the transition conveying station; then narrow the width of the two lower box clamping conveyor belts 5 through the first width adjustment mechanism, and then lower the height of the two upper box clamping conveyor belts 6 through the second lifting mechanism, so that the two upper box clamping conveyor belts 6 can be in a relative clamping state with the two lower box clamping conveyor belts 5 moved to the transition conveying station to clamp and convey the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine;

[0044] The specific operation of the first lifting mechanism lowering the chain support bracket and the conveying chain is as follows: start the second drive motor 12, so that the second drive motor 12 drives the first worm wheels 9 to reverse synchronously through the third worm, the third worm wheel, the intermediate drive shaft 11, the second worms, the second worm wheels and the first worms 10, thereby driving the first lifting screws 7 to move downward synchronously, thereby driving the chain support bracket 2 and the conveying chain 3 to move downward to the bottom of the transition conveying station;

[0045] The specific operation of the first width adjustment mechanism to narrow the two lower box-clamping conveyor belts 5 is as follows: the first handle 34 is rotated in the opposite direction, so that the first handle 34 drives the corresponding positive and negative threaded rod to rotate, and the corresponding positive and negative threaded rod drives another positive and negative threaded rod to rotate synchronously through the first driven gear and the first driven chain. During the synchronous reversal of the first positive and negative threaded rod 32 and the second positive and negative threaded rod 33, the two lower box-clamping conveyor belts 5 move horizontally toward each other along the first guide rod 30 to the transition conveying station through the corresponding first internally threaded sleeve 31 arranged in the lower box-clamping conveying bracket 51 thereof, so that the two lower box-clamping conveyor belts 5 can receive the carton group output by the wrapping machine unit;

[0046] The specific operation of the second lifting mechanism lowering the two upper box clamping conveyor belts 6 is as follows: the second handle 42 is rotated in the opposite direction, so that the second handle 42 drives the lifting worm 41 to rotate, and the lifting worm 41 drives the driving sprocket 39 to rotate through the lifting worm gear and the driving shaft 38, and the driving sprocket 39 drives the driven sprockets 37 to rotate synchronously through the driving chain 40, and the driven sprockets 37 synchronously rotate forward to drive the second lifting screw rods 36 to descend synchronously, and synchronously drive the lifting bracket 35 to move downward, thereby driving the two upper box clamping conveyor belts 6 to move downward to the two lower box clamping conveyor belts 5 moved to the transition conveying station to clamp the carton group output by the wrapping machine unit and convey it to the film wrapping unit of the film wrapping machine;

[0047] After the carton group and bottle group transition conveying unit 113 is adjusted to a working state suitable for conveying the carton group, the bottle is conveyed to the wrapping machine unit 112 through the container feeding unit 111. The wrapping machine unit 112 wraps the bottle group in cartons and then conveys it to the carton group and bottle group transition conveying unit 113. The two upper carton clamping conveyor belts 6 and the two lower carton clamping conveyor belts 5 in the carton group and bottle group transition conveying unit 113 will clamp the carton group in an upper and lower relative clamping state to convey it to the film wrapping machine film wrapping unit 114. At this time, the film wrapping machine film wrapping unit 114 does not wrap the carton but only conveys the carton group. After the film wrapping machine film wrapping unit 114 conveys the carton group to the film wrapping machine heat shrinking unit 115, the film wrapping machine heat shrinking unit 115 does not shrink the carton but only conveys the carton group, thereby completing the individual carton wrapping of the bottle.

[0048] When producing carton wrapped and film wrapped products, first adjust the carton group and bottle group transition conveying unit 113 to a working state suitable for conveying the carton group. The specific adjustment process of the carton group and bottle group transition conveying unit 113 is as follows: first stop the action of the first drive motor 4, then retract the chain plate support bracket 2, and then move the chain plate support bracket 2 and the conveying chain plate 3 downward to below the transition conveying station through the first lifting mechanism, so that the chain plate support bracket 2 and the conveying chain plate 3 do not hinder the two lower box clamping conveyor belts 5 from moving to the transition conveying station; then narrow the width of the two lower box clamping conveyor belts 5 through the first width adjustment mechanism, and then lower the height of the two upper box clamping conveyor belts 6 through the second lifting mechanism, so that the two upper box clamping conveyor belts 6 can be in a relative clamping state with the two lower box clamping conveyor belts 5 moved to the transition conveying station to clamp and convey the carton group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine;

[0049] The specific operation of the first lifting mechanism lowering the chain support bracket and the conveying chain is as follows: start the second drive motor 12, so that the second drive motor 12 drives the first worm wheels 9 to reverse synchronously through the third worm, the third worm wheel, the intermediate drive shaft 11, the second worms, the second worm wheels and the first worms 10, thereby driving the first lifting screws 7 to move downward synchronously, thereby driving the chain support bracket 2 and the conveying chain 3 to move downward to the bottom of the transition conveying station;

[0050] The specific operation of the first width adjustment mechanism to narrow the two lower box-clamping conveyor belts 5 is as follows: the first handle 34 is rotated in the opposite direction, so that the first handle 34 drives the corresponding positive and negative threaded rod to rotate, and the corresponding positive and negative threaded rod drives another positive and negative threaded rod to rotate synchronously through the first driven gear and the first driven chain. During the synchronous reversal of the first positive and negative threaded rod 32 and the second positive and negative threaded rod 33, the two lower box-clamping conveyor belts 5 move horizontally toward each other along the first guide rod 30 to the transition conveying station through the corresponding first internally threaded sleeve 31 arranged in the lower box-clamping conveying bracket 51 thereof, so that the two lower box-clamping conveyor belts 5 can receive the carton group output by the wrapping machine unit;

[0051] The specific operation of the second lifting mechanism lowering the two upper box clamping conveyor belts 6 is as follows: the second handle 42 is rotated in the opposite direction, so that the second handle 42 drives the lifting worm 41 to rotate, and the lifting worm 41 drives the driving sprocket 39 to rotate through the lifting worm gear and the driving shaft 38, and the driving sprocket 39 drives the driven sprockets 37 to rotate synchronously through the driving chain 40, and the driven sprockets 37 synchronously rotate forward to drive the second lifting screw rods 36 to descend synchronously, and synchronously drive the lifting bracket 35 to move downward, thereby driving the two upper box clamping conveyor belts 6 to move downward to the two lower box clamping conveyor belts 5 moved to the transition conveying station to clamp the carton group output by the wrapping machine unit and convey it to the film wrapping unit of the film wrapping machine;

[0052] After the carton group and bottle group transition conveying unit 113 is adjusted to a working state suitable for conveying the carton group, the bottles are conveyed to the wrapping machine unit 112 through the container feeding unit 111. The wrapping machine unit 112 wraps the bottle group in cartons and conveys it to the carton group and bottle group transition conveying unit 113. The two upper clamping conveyor belts 6 and the two lower clamping conveyor belts 5 in the carton group and bottle group transition conveying unit 113 clamp the carton group in a relative clamping state and convey it to the film wrapping machine. The film wrapping unit 114 then wraps the film around the outside of the carton, at which point the film will cover the gaps between the side folds of the carton, and then the film wrapping unit 114 transports the film-wrapped carton to the heat shrinking unit 115, which shrinks the film wrapped around the outside of the carton group onto the carton group, at which point the film will shrink and cover the gaps between the side folds of the carton, thereby completing the film wrapping of the bottles after carton wrapping.

[0053] The beneficial effects of the present invention are as follows: (1) it can realize the production of individual film-wrapped products, the production of individual carton wrapped products, and the production of film-wrapped products after carton wrapping, and has a wide range of application; (2) it can smoothly transfer the carton group or bottle group output by the wrapping machine unit to the film wrapping unit of the film wrapping machine, and has high working stability; (3) the product has a high degree of integration, and the equipment footprint is reduced while achieving the same function; (4) when producing film-wrapped products after carton wrapping, the film of the film wrapping unit of the film wrapping machine will cover the gaps between the side folds of the carton wrapped and output by the wrapping machine unit, thereby preventing dust and mosquitoes from entering the carton through the gaps between the side folds of the carton, thereby improving the moisture-proof and insect-proof effect of the carton.

[0054] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A multifunctional film wrapping machine, characterized in that: It comprises a container feeding unit, a wrapping machine unit, a carton group and bottle group transition conveying unit, a film wrapping machine film wrapping unit, and a film wrapping machine heat shrinking unit, which are sequentially arranged along the product conveying direction; the structure of the carton group and bottle group transition conveying unit comprises: a frame arranged between the wrapping machine unit and the film wrapping machine film wrapping unit, a retractable chain plate support bracket is arranged in the frame, a first lifting mechanism which can drive the chain plate support bracket to move upward to a transition conveying station is arranged between the chain plate support bracket and the frame, a conveying chain plate is wound around the chain plate support bracket, a first driving motor is arranged on the frame below the conveying chain plate, a first driving gear meshing with the conveying chain plate is mounted on the output shaft of the first driving motor, the first driving motor can drive the conveying chain plate supported by the chain plate support bracket which is moved to the transition conveying station and stretched out to rotate through the first driving gear, so that the conveying chain plate can output the wrapping machine unit The bottle group is transitionally conveyed to the film wrapping unit of the film wrapping machine, and two lower box clamping conveyor belts distributed on the left and right are arranged on the frame at the transition conveying station. The two lower box clamping conveyor belts can be horizontally moved toward each other to the transition conveying station under the drive of the first width adjusting mechanism, so that the two lower box clamping conveyor belts can undertake the carton group output by the wrapping machine unit, or move horizontally away from each other to the left and right sides of the transition conveying station, so that the two lower box clamping conveyor belts do not hinder the chain plate supporting bracket from moving up to the transition conveying station; two upper box clamping conveyor belts distributed on the left and right are arranged on the frame above the transition conveying station, and the two upper box clamping conveyor belts just correspond to the two lower box clamping conveyor belts moved to the transition conveying station one by one. The two upper box clamping conveyor belts can be driven by the second lifting mechanism to move downward to the two lower box clamping conveyor belts moved to the transition conveying station to clamp the carton group output by the wrapping machine unit and convey it to the film wrapping unit of the film wrapping machine.

2. The multifunctional film wrapping machine according to claim 1, characterized in that: The wrapper used in the wrapper unit is a longitudinal wrapper.

3. A multifunctional film wrapping machine according to claim 1 or 2, characterized in that: The structure of the first lifting mechanism includes: two first lifting screw rods distributed on the left and right are respectively vertically fixedly installed at the front and rear ends of the bottom of the chain plate support bracket, and two support seats distributed on the left and right are respectively arranged at the front and rear ends of the frame below the chain plate support bracket, and a first worm gear that can rotate freely and cannot move axially is movably supported in each support seat, and each first lifting screw rod corresponds to each first worm gear one by one, and each first lifting screw rod passes downward through the corresponding first worm gear and is threadedly connected to the corresponding first worm gear. A first worm gear is also movably supported at the front and rear ends of the frame below the chain plate support bracket, and each first worm gear is meshed with the two first worm gears on the same side at the same time. A second worm wheel is fixedly mounted on one side end of the worm gear, each second worm wheel is respectively meshed with a second worm gear movably supported on the frame, the two second worm gears are coaxially connected to the intermediate drive shaft through a coupling, a third worm wheel is fixedly mounted on the intermediate drive shaft, the third worm wheel is meshed with a third worm gear driven to rotate by a second drive motor, and the second drive motor drives the first worm wheels to rotate synchronously through the third worm gear, the third worm wheel, the intermediate drive shaft, the second worm gears, the second worm gears and the first worm gears, thereby driving the first lifting screws to move upward or downward synchronously, thereby driving the chain plate support bracket to move upward to the transition conveying station or downward to below the transition conveying station.

4. The multifunctional film wrapping machine according to claim 3, characterized in that: The structure of the chain plate supporting bracket includes: an intermediate bracket for installing a first lifting screw rod, two first sliding brackets that can slide left and right relative to each other are slidably arranged on the intermediate bracket, a first limiting component for limiting the outward sliding position of the first sliding bracket relative to the intermediate bracket is respectively arranged between the intermediate bracket and each first sliding bracket, and a first fixing component for locking and fixing the first sliding bracket and the intermediate bracket is also respectively arranged between the intermediate bracket and each first sliding bracket; a second sliding bracket is slidably arranged on each first sliding bracket, a second limiting component for limiting the outward sliding position of the second sliding bracket relative to the first sliding bracket is respectively arranged between each second sliding bracket and the corresponding first sliding bracket, and a second fixing component for locking and fixing the second sliding bracket and the corresponding first sliding bracket is also respectively arranged between each second sliding bracket and the corresponding first sliding bracket.

5. The multifunctional film wrapping machine according to claim 4, characterized in that: The structure of the first limiting component includes: a first limiting block is arranged on the side wall of the first sliding bracket opposite to the middle bracket, and a second limiting block that can cooperate with the first limiting block to limit is arranged on the outer end of the middle bracket; the structure of the first fixing component includes: a first locking hole is arranged on the side wall of the first sliding bracket, and a second locking hole is arranged on the side wall of the middle bracket. When the first sliding bracket moves outward relative to the middle bracket until the first limiting block abuts against the second limiting block, the first locking hole and the second locking hole correspond exactly to each other, and a first locking bolt for locking and fixing the first sliding bracket and the middle bracket is detachably installed in the corresponding first locking hole and the second locking hole.

6. The multifunctional film wrapping machine according to claim 4, characterized in that: The structure of the second limiting component includes: a third limiting block is arranged on the side wall of the second sliding bracket opposite to the first sliding bracket, and a fourth limiting block that can cooperate with the third limiting block to limit is arranged on the side wall of the first sliding bracket opposite to the side wall of the second sliding bracket; the structure of the second fixing component includes: a third locking hole is arranged on the side wall of the second sliding bracket, and a fourth locking hole is arranged on the side wall of the first sliding bracket. When the second sliding bracket moves outward relative to the first sliding bracket until the third limiting block abuts against the fourth limiting block, the third locking hole and the fourth locking hole correspond exactly to each other, and a second locking bolt for locking and fixing the first sliding bracket and the second sliding bracket is detachably installed in the corresponding third locking hole and the fourth locking hole.

7. The multifunctional film wrapping machine according to claim 1 or 2, characterized in that: The structure of the first width adjustment mechanism includes: a first guide rod running left and right is respectively provided at the front and rear ends of the frame at the transition conveying station, the lower box conveying brackets of the two lower box conveyor belts can be slidably arranged on the two first guide rods, and an internal threaded sleeve running left and right is respectively provided at the front and rear ends of the lower box conveying brackets of the two lower box conveyor belts, the two internal threaded sleeves located on the front side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the rear side are coaxially arranged and have opposite thread rotation directions, the thread rotation directions of the two internal threaded sleeves located on the left side are the same, and the thread rotation directions of the two internal threaded sleeves located on the right side are the same, a first positive and negative threaded screw rod movably supported on the frame and threadedly connected to the two corresponding internal threaded sleeves is commonly penetrated in the two internal threaded sleeves located on the front side, and a first positive and negative threaded screw rod movably supported on the frame and threadedly connected to the two corresponding internal threaded sleeves is commonly penetrated in the two internal threaded sleeves located on the rear side The second forward and reverse screw rods should be threadedly connected with the internal threaded sleeve, and a first handle is provided at the outer end of the first forward and reverse screw rods or the second forward and reverse screw rods, and a first driven gear is fixedly mounted on the first forward and reverse screw rods and the second forward and reverse screw rods respectively, and a first driven chain is wound around the two first driven gears. When the first handle drives the corresponding forward and reverse screw rods to rotate, the corresponding forward and reverse screw rods can drive the other forward and reverse screw rods to rotate synchronously through the first driven gear and the first driven chain. During the process of the first forward and reverse screw rods and the second forward and reverse screw rods rotating synchronously forward or reverse, the two lower box conveyor belts can move horizontally toward each other along the first guide rod to the transition conveying station through the corresponding internal threaded sleeves arranged in the lower box conveying brackets, so that the two lower box conveyor belts can receive the carton group output by the wrapping machine unit, or move horizontally away from each other to the left and right sides of the transition conveying station, so that the two lower box conveyor belts do not hinder the chain plate support bracket from moving up to the transition conveying station.

8. The multifunctional film wrapping machine according to claim 1 or 2, characterized in that: The structure of the second lifting mechanism includes: a lifting bracket for installing two upper box-clamping conveyor belts, two second lifting screw rods are vertically fixedly installed at the front and rear ends of the lifting bracket, each second lifting screw rod passes through the frame top plate upward and is threadedly mounted on a driven sprocket, all driven sprockets are rotatable but cannot be axially moved and are installed on the frame, a driving shaft is vertically movably supported on one side of the top of the frame, a driving sprocket and a lifting worm wheel are fixedly mounted on the driving shaft, a driving chain is wound between the driving sprocket and each driven sprocket, and a lifting worm screw meshing with the lifting worm wheel is also horizontally and laterally supported on the frame. A second handle is provided on the outer end portion. When the second handle drives the lifting worm to rotate, the lifting worm drives the driving sprocket to rotate through the lifting worm wheel and the driving shaft. The driving sprocket drives the driven sprockets to rotate synchronously through the driving chain. When the driven sprockets rotate forward or reverse synchronously, they can drive the second lifting screws to rise or fall synchronously, and synchronously drive the lifting bracket to move upward or downward, thereby driving the two upper box-clamping conveyor belts to move downward to form a relative clamping state with the two lower box-clamping conveyor belts moved to the transition conveying station, so as to clamp the carton group output by the wrapping machine unit and convey it to the film wrapping unit of the film wrapping machine, or drive the two upper box-clamping conveyor belts to move upward to release the carton group.

9. The multifunctional film wrapping machine according to claim 8, characterized in that: The two upper box conveyor belts can move horizontally toward or away from each other in the lifting bracket driven by the second width adjustment mechanism, and the structure of the second width adjustment mechanism includes: a second guide rod running left and right is respectively arranged at the front and rear ends of the lifting bracket, and the upper box conveying brackets of the two upper box conveyor belts can be slidably arranged left and right on the two second guide rods, and an internal threaded sleeve running left and right is respectively arranged at the front and rear ends of the upper box conveying brackets of the two upper box conveyor belts, the two internal threaded sleeves located on the front side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the rear side are coaxially arranged and have opposite thread rotation directions, the two internal threaded sleeves located on the left side have the same thread rotation direction, and the two internal threaded sleeves located on the right side have the same thread rotation direction, and a movable support on the lifting bracket is commonly passed through the two internal threaded sleeves located on the front side and is simultaneously connected to the two opposite sides. The third forward and reverse screw rod threadedly connected to the internal threaded sleeve, and a fourth forward and reverse screw rod movably supported on the lifting bracket and threadedly connected to the two corresponding internal threaded sleeves are commonly passed through the two internal threaded sleeves located at the rear side, a third handle is arranged on the outer end of the third forward and reverse screw rod or the fourth forward and reverse screw rod, and a second driven gear is fixedly mounted on the third forward and reverse screw rod and the fourth forward and reverse screw rod respectively, and a second driven chain is wound around the two second driven gears. When the third handle drives the corresponding forward and reverse screw rod to rotate, the corresponding forward and reverse screw rod can drive the other forward and reverse screw rod to rotate synchronously through the second driven gear and the second driven chain. In the process of synchronous forward or reverse rotation of the third forward and reverse screw rod and the fourth forward and reverse screw rod, the two upper box conveyor belts can move toward or away from each other horizontally along the second guide rod through the corresponding internal threaded sleeves arranged in the upper box conveying bracket.

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