Film winding device for logistics carton

Abstract

The invention relates to the field of carton film winding packaging equipment, in particular to a logistics carton film winding device which comprises a bottom plate, a mounting frame, an upper mounting seat and a lower mounting seat, the bottom plate is anchored to the ground, the mounting frame is fixed to the top of the bottom plate in the vertical direction, and the upper mounting seat and the lower mounting seat are fixed to the upper end and the lower end of the mounting frame correspondingly; an upper lifting plate and a lower lifting plate are mounted in the upper mounting base and the lower mounting base in the horizontal direction, an upper limiting piece and a lower limiting piece which are used for limiting a carton are arranged on the sides, close to each other, of the upper lifting plate and the lower lifting plate correspondingly, and the upper lifting plate and the lower lifting plate are arranged in a sliding mode in the vertical direction. And the upper limiting piece and the lower limiting piece alternately limit the carton. The paper box film winding device aims at optimizing the paper box film winding step.

Description

Technical Field

[0001] The present application relates to the field of carton film wrapping packaging equipment, and in particular to a logistics carton film wrapping device. Background Art

[0002] Film wrapping machine is a kind of equipment used to package, protect and transport products, usually used to wrap rolls of film materials, such as plastic film, foam film, paper, etc. Its working principle is to pull the film material from a reel (parent roll) and then wrap it around the product or pallet to create a sealed packaging layer.

[0003] In the related art, when a film wrapping machine wraps a carton-like object, the carton is often placed on a rotating table. As the carton rotates, the film wrapping machine wraps the plastic film around the carton. In order to effectively ensure the stability of the carton during the rotation and winding process, a limiter for limiting the position of the carton is often added to the rotating table. The limiter is usually located near the bottom of the carton. Although the limiter can effectively ensure the stability of the carton during the rotation and winding process, the presence of the limiter will hinder the winding of the bottom of the carton, which means that the bottom of the carton is often not wrapped with film, which results in a winding dead angle in the film winding of the entire carton, and also a sealing dead angle around the carton.

[0004] In summary, film wrapping cannot be performed near the position of the limiter at the bottom of the carton, but removing the limiter cannot effectively guarantee the stability of the carton during the wrapping process. Summary of the invention

[0005] The present application provides a logistics carton film wrapping device, the purpose of which is to optimize the steps of carton film wrapping, so that during the process of plastic film wrapping of the carton, the limiter will not hinder the winding of the carton, and at the same time can effectively ensure the stability of the carton during the rotation and winding process.

[0006] The present application provides a logistics carton film wrapping device, which adopts the following technical solution: A logistics carton film wrapping device comprises a bottom plate, a mounting frame, an upper mounting seat and a lower mounting seat, wherein the bottom plate is anchored to the ground, the mounting frame is fixed to the top of the bottom plate in the vertical direction, the upper mounting seat and the lower mounting seat are respectively fixed to the upper and lower ends of the mounting frame, the upper mounting seat and the lower mounting seat are both hollow inside, a plurality of support rods are arranged in the lower mounting seat at intervals in the horizontal direction, a first motor is installed on the top of the plurality of support rods, the driving end of the first motor is vertically upward, and the driving end of the first motor is at A rotating table is installed in the horizontal direction, and an upper lifting plate and a lower lifting plate are installed in the upper mounting seat and the lower mounting seat in the horizontal direction. The upper lifting plate and the lower lifting plate are respectively provided with an upper limit member and a lower limit member for limiting the carton on one side close to each other. The upper lifting plate and the lower lifting plate are both slidably arranged in the vertical direction, the upper limit member is used to limit the top peripheral side of the carton, and the lower limit member is used to limit the bottom peripheral side of the carton. The upper limit member and the lower limit member limit the carton alternately.

[0007] By adopting the above technical solution, when the plastic film is wrapped around the position of the lower limiter, the lower limiter gradually slides into the lower mounting seat, and as the lower limiter gradually moves downward, the plastic film can be smoothly wrapped around the side of the bottom of the carton. In this process, while the lower limiter gradually moves downward, the upper limiter simultaneously moves downward, and then the top of the carton is limited by the upper limiter, so as to effectively ensure the stability of the carton during the rotation process. When the plastic film is wrapped around the position of the upper limiter, the upper limiter gradually slides into the upper mounting seat, and as the upper limiter gradually moves upward, the plastic film can be smoothly wrapped around the side of the top of the carton. In this process, while the upper limiter gradually moves upward, the lower limiter simultaneously moves upward, and then the bottom of the carton is limited by the lower limiter, so as to effectively ensure the stability of the carton during the rotation process.

[0008] This setting method uses the upper limit member and the lower limit member to limit the carton alternately, so that during the plastic film wrapping process of the carton, the upper limit member and the lower limit member will not hinder the winding of the carton, and at the same time can effectively ensure the stability of the carton during the rotation and winding process.

[0009] Preferably, a first slide rail is provided on the top of the bottom plate in the vertical direction, the first slide rail is fixed to the top of the bottom plate, a first slide seat is slidably installed on the side wall of the first slide rail, a corresponding winding roller and a tensioning roller are installed on the first slide seat in the vertical direction, a second motor is installed on the top of the first slide rail, a driving end of the second motor is vertically downward, and a screw rod is installed at the driving end of the second motor in the vertical direction, the screw rod is inserted into the first slide rail, a lifting seat is installed inside the first slide rail, the screw rod passes through the lifting seat and is threadedly matched with the lifting seat, and the side wall of the first slide seat is connected to the lifting seat; The side wall of the lifting seat is integrally connected with the lower lifting plate via a first linkage rod, and the lower lifting plate is integrally connected with the upper lifting plate via a second linkage rod.

[0010] By adopting the above technical solution, in the initial state, the lower limit piece extends upward from the lower mounting seat to the side around the bottom of the carton, and the upper limit piece is located in the upper mounting seat. At this time, the bottom of the carton is stably limited by the lower limit piece, effectively preventing the carton from falling from the rotating table during the rotation process. When the carton is wrapped with a film, it is wrapped from top to bottom. When the lifting seat drives the first slide seat to move downward, the lower lifting plate is synchronously driven downward by the first linkage rod. When the plastic film is wrapped to the bottom of the carton, the lower limit piece extends into the lower mounting seat, so that the plastic film can be smoothly wrapped around the bottom of the carton. In this process, while the lower lifting plate moves downward, the upper lifting plate is synchronously driven downward by the second linkage rod. During the downward movement of the upper lifting plate, the upper limit piece is moved down to the side around the top of the carton, and then the top of the carton is stably limited by the upper limit piece.

[0011] Similarly, when the first slide moves up to wrap the top of the carton, the lower lifting plate moves up so that the lower limit member can stably limit the bottom of the carton, and the upper lifting plate drives the upper limit member to move up to the upper mounting seat, so that the top of the carton can be wrapped smoothly.

[0012] In summary, when the bottom of the carton is wrapped with a film, the lower limiter extends into the lower mounting seat, and the upper limiter extends into the upper mounting seat, and the upper limiter is used to wrap the top of the carton with a film; when the top of the carton is wrapped with a film, the upper limiter extends into the upper mounting seat, and the lower limiter extends into the lower mounting seat, and the lower limiter is used to wrap the bottom of the carton with a film. The upper limiter and the lower limiter are then used to alternately limit the carton, so that during the process of wrapping the carton with plastic film, the upper limiter and the lower limiter will not hinder the wrapping of the carton, and at the same time, the stability of the carton during the rotation and wrapping process can be effectively guaranteed.

[0013] Preferably, a support plate is installed in the lower mounting seat along the horizontal direction, the support plate is located below the lower lifting plate, and a first auxiliary spring is installed between the support plate and the lower lifting plate along the vertical direction.

[0014] By adopting the above technical solution, the first auxiliary spring can buffer the lower lifting plate when the lower lifting plate descends, and at the same time can assist in resetting the lower lifting plate when the lower lifting plate moves upward, thereby utilizing the first auxiliary spring to help stabilize the lower lifting plate during the lifting process.

[0015] Preferably, an adjustment mechanism is provided in both the upper mounting seat and the lower mounting seat, and the adjustment mechanism is used to adjust the size of the corresponding upper limit member or the lower limit member.

[0016] By adopting the above technical solution, since the plastic film will be continuously wrapped around the side of the carton, the side of the carton will become thicker and thicker. If the sizes of the upper limit member and the lower limit member remain fixed, when the upper limit member or the lower limit member slides up and down, the gradual thickening of the side of the carton will cause a certain interference with the sliding of the upper limit member or the lower limit member, thereby affecting the normal positioning of the carton by the upper limit member or the lower limit member, which is not conducive to the normal wrapping of the plastic film on the carton.

[0017] Preferably, the lower limit member is composed of a plurality of limit rods, the plurality of limit rods are in a "mouth" shape, the adjustment mechanism is composed of a plurality of adjustment components, and the plurality of adjustment components correspond to the plurality of limit rods one by one; The adjusting assembly includes a second slide rail and a second slide seat, the second slide rail is fixed to the top of the lower lifting plate in the horizontal direction, the second slide rail is provided with a slide groove along its length direction, the second slide seat is slidably installed in the slide groove, the second slide seat includes a first block and a second block connected as one body, the first block is horizontally arranged, the second block is vertically arranged, the first block is slidably installed in the slide groove, and a connecting rod is integrally formed between the first block and the corresponding limit rod in the vertical direction.

[0018] By adopting the above technical solution, the first block is used to drive the corresponding limit rod to slide, so that the size of the lower limit member can be adjusted to effectively ensure that the lower limit member can stably limit cartons of different sizes and thicknesses.

[0019] Preferably, a driving member is installed in the lower mounting seat, and the driving member is cone-shaped as a whole. Through holes are opened on the support plate and the lower lifting plate. The top of the driving member passes through the through hole on the support plate upward and extends into the through hole of the lower lifting plate. The second block extends into the through hole of the lower lifting plate in a vertical direction. The side of the second block close to the driving member is in an arc-shaped wedge shape, and the driving member is used to drive the second block to slide.

[0020] By adopting the above technical solution, as the lower lifting plate moves downward, when one side of the wedge-shaped second block abuts against the driving member, these second blocks slide in the direction away from each other, and then drive the corresponding first blocks to slide in the direction away from each other through these second blocks, so that the size of the lower limit member can be adjusted to effectively ensure that the lower limit member can stably limit cartons of different sizes and thicknesses.

[0021] By means of the adjustment mechanism, the upper limit member and the lower limit member can adjust their own sizes accordingly while sliding up and down, so that the upper limit member and the lower limit member will not hinder the winding of the cartons, and can also stably limit the cartons of different sizes and thicknesses.

[0022] Preferably, a second auxiliary spring is installed in the slide groove along the horizontal direction, one end of the second auxiliary spring is integrally connected to the inner wall of the second slide rail, and the other end of the second auxiliary spring is integrally connected to the side wall of the first block.

[0023] By adopting the above technical solution, when the first block slides in the corresponding sliding groove, the second auxiliary spring is used to buffer the sliding of the first block, which is beneficial to ensure the stability of the limit rod during the sliding process.

[0024] Preferably, a limiting assembly is provided between the second slide rail and the first block, and the limiting assembly is used to lock the limiting rod after the position is adjusted.

[0025] By adopting the above technical solution, the limiting assembly can effectively prevent the limiting rod with a properly adjusted position from being displaced when limiting the carton, thereby affecting the normal wrapping of the plastic film on the carton.

[0026] Preferably, the limit assembly includes a limit block and a limit hole, the limit block is integrally formed at the bottom of the first block, the limit hole is through-opened at the bottom of the second slide rail, and the limit holes are multiple along the length direction of the second slide rail, and the limit block and the limit hole are plug-fitted.

[0027] By adopting the above technical solution, after the limit block is inserted into the limit hole, the position of the limit rod is adjusted, and the lower limit member can rise again to limit the thickened carton. In this state, when the first block is not subjected to external force, the limit block can be stably inserted into the limit hole. Only when the driving member applies a driving force to the first block, the limit block slides out of the corresponding limit hole and slides into another limit hole, thereby completing the re-adjustment of the position of the limit rod.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the plastic film is wrapped around the lower limiter, the lower limiter gradually slides into the lower mounting seat, and as the lower limiter gradually moves downward, the plastic film can be smoothly wrapped around the bottom of the carton. In this process, while the lower limiter gradually moves downward, the upper limiter simultaneously moves downward, and then the top of the carton is limited by the upper limiter, so as to effectively ensure the stability of the carton during the rotation process. When the plastic film is wrapped around the upper limiter, the upper limiter gradually slides into the upper mounting seat, and as the upper limiter gradually moves upward, the plastic film can be smoothly wrapped around the top of the carton. In this process, while the upper limiter gradually moves upward, the lower limiter simultaneously moves upward, and then the bottom of the carton is limited by the lower limiter, so as to effectively ensure the stability of the carton during the rotation process.

[0029] This setting method uses the upper limiter and the lower limiter to limit the carton alternately, so that during the plastic film wrapping process of the carton, the upper limiter and the lower limiter will not hinder the wrapping of the carton, and at the same time can effectively ensure the stability of the carton during the rotation and wrapping process; 2. As the lower lifting plate moves downward, when one side of the wedge-shaped second block abuts against the driving member, the second blocks slide away from each other, and then the corresponding first blocks are driven by the second blocks to slide away from each other, so that the size of the lower limit member can be adjusted to effectively ensure that the lower limit member can stably limit cartons of different sizes and thicknesses.

[0030] By means of the adjustment mechanism, the upper limiter and the lower limiter can adjust their own sizes accordingly while sliding up and down, so that the upper limiter and the lower limiter will not hinder the winding of the cartons, and can also stably limit the cartons of different sizes and thicknesses; 3. When the limit block is inserted into the limit hole, the position of the limit rod is adjusted. At this time, the lower limit piece can rise again to limit the thickened carton. In this state, when the first block is not subject to external force, the limit block can be stably inserted into the limit hole. Only when the driving member applies a driving force to the first block, the limit block slides out of the corresponding limit hole and slides into another limit hole, thereby completing the re-adjustment of the limit rod position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the lower lifting plate, the upper limit member, the second linkage rod, the support plate, the first auxiliary spring, the second slide rail, the second slide seat, the slide groove, the connecting rod and the second auxiliary spring; Figure 3 It is a structural schematic diagram of an embodiment of the present application that specifically shows the positional relationship between the first block, the second block, the driving member, the limit block and the limit hole.

[0032] 1. Bottom plate; 2. Mounting frame; 3. Upper mounting seat; 4. Lower mounting seat; 5. Support rod; 6. First motor; 7. Turntable; 8. Upper lifting plate; 9. Lower lifting plate; 10. Upper limit member; 11. Lower limit member; 12. First slide rail; 13. First slide seat; 14. Second motor; 15. Screw rod; 16. Lifting seat; 17. First linkage rod; 18. Second linkage rod; 19. Support plate; 20. First auxiliary spring; 21. Second slide rail; 22. Second slide seat; 221. First block; 222. Second block; 23. Slide groove; 24. Connecting rod; 25. Driving member; 26. Second auxiliary spring; 27. Limit block; 28. Limit hole. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0034] Example: The present application embodiment discloses a logistics carton film wrapping device, referring to Figure 1 and Figure 2 , including a bottom plate 1, a mounting frame 2, an upper mounting seat 3 and a lower mounting seat 4. The bottom plate 1 is anchored to the ground by fastening bolts, the mounting frame 2 is welded to the top of the bottom plate 1 in the vertical direction, the upper mounting seat 3 and the lower mounting seat 4 are respectively fixed to the upper and lower ends of the mounting frame 2, and the upper mounting seat 3 and the lower mounting seat 4 are both hollow inside. A plurality of support rods 5 are welded at intervals in the horizontal direction inside the lower mounting seat 4, and a first motor 6 is installed on the top of these support rods 5, the driving end of the first motor 6 is vertically upward, and a rotating table 7 is installed at the driving end of the first motor 6 in the horizontal direction. When the carton is wrapped with a film, the carton is placed on the rotating table 7 for rotation.

[0035] Reference Figure 1 and Figure 2At the same time, an upper lifting plate 8 and a lower lifting plate 9 are installed in the upper mounting seat 3 and the lower mounting seat 4 in the horizontal direction. The upper lifting plate 8 and the lower lifting plate 9 are respectively provided with an upper limit member 10 and a lower limit member 11 for limiting the carton on the side close to each other. The upper lifting plate 8 and the lower lifting plate 9 are both slidably arranged in the vertical direction. The upper limit member 10 is used to limit the top peripheral side of the carton, and the lower limit member 11 is used to limit the bottom peripheral side of the carton. The upper limit member 10 and the lower limit member 11 limit the carton alternately.

[0036] Specifically, when in use, a carton is placed on the rotating table 7, and the carton starts to rotate along with the rotating table 7, and at the same time, the first slide 13 starts to rise and fall on the first slide rail 12. As the carton rotates and the first slide 13 rises and falls, the tensioning roller tensions the plastic film, and the plastic film on the winding roller is gradually wound around the carton.

[0037] When the plastic film is wrapped around the position of the lower limiter 11, the lower limiter 11 gradually slides into the lower mounting seat 4, and as the lower limiter 11 gradually moves down, the plastic film can be smoothly wrapped around the side of the bottom of the carton. In this process, while the lower limiter 11 gradually moves down, the upper limiter 10 moves down synchronously, and then the top of the carton is limited by the upper limiter 10, so as to effectively ensure the stability of the carton during the rotation process. When the plastic film is wrapped around the position of the upper limiter 10, the upper limiter 10 gradually slides into the upper mounting seat 3, and as the upper limiter 10 gradually moves up, the plastic film can be smoothly wrapped around the side of the top of the carton. In this process, while the upper limiter 10 gradually moves up, the lower limiter 11 moves up synchronously, and then the bottom of the carton is limited by the lower limiter 11, so as to effectively ensure the stability of the carton during the rotation process.

[0038] This arrangement utilizes the upper limit member 10 and the lower limit member 11 to alternately limit the position of the carton, so that during the plastic film wrapping process of the carton, the upper limit member 10 and the lower limit member 11 will not hinder the wrapping of the carton, and at the same time can effectively ensure the stability of the carton during the rotation and wrapping process.

[0039] Specifically, refer to Figure 1 and Figure 2A first slide rail 12 is provided at the top of the bottom plate 1 in the vertical direction. The first slide rail 12 is anchored to the top of the bottom plate 1 by fastening bolts. A first slide seat 13 is slidably installed on the side wall of the first slide rail 12. Corresponding rollers and tensioning rollers are installed on the first slide seat 13 in the vertical direction. A plastic film is sleeved on the roller. A second motor 14 is installed at the top of the first slide rail 12. The driving end of the second motor 14 is vertically downward, and a screw rod 15 is installed at the driving end of the second motor 14 in the vertical direction. The screw rod 15 is inserted into the inside of the first slide rail 12. A lifting seat 16 is installed inside the first slide rail 12. The screw rod 15 passes through the lifting seat 16 and is threaded with the lifting seat 16. The side wall of the first slide seat 13 is connected to the lifting seat 16 through a corresponding connecting rod.

[0040] The side wall of the lifting seat 16 is connected to the lower lifting plate 9 through a first linkage rod 17. The first linkage rod 17 is in a "Z"-shaped structure. When the lifting seat 16 is lifted and lowered in the first slide rail 12, it simultaneously drives the lower lifting plate 9 to lift and lower in the vertical direction. At the same time, the lower lifting plate 9 and the upper lifting plate 8 are connected to each other through a second linkage rod 18. The second linkage rod 18 is in a "Z"-shaped structure. When the lifting seat 16 drives the lower lifting plate 9 to lift and lower, it also drives the upper lifting plate 8 to lift and lower. The side walls of the upper mounting seat 3 and the lower mounting seat 4 are provided with grooves for the second linkage rod 18 to slide. When the upper lifting plate 8 and the lower lifting plate 9 slide up and down, the upper and lower ends of the second linkage rod 18 are displaced in the corresponding grooves.

[0041] In the initial state, the lower limit member 11 extends upward from the lower mounting seat 4 to the side of the bottom of the carton, and the upper limit member 10 is located in the upper mounting seat 3. At this time, the bottom of the carton is stably limited by the lower limit member 11, effectively preventing the carton from falling from the rotating table 7 during the rotation process. When the carton is wrapped with a film, it is wrapped from top to bottom. When the lifting seat 16 drives the first slide 13 to move downward, the lower lifting plate 9 is synchronously driven downward by the first linkage rod 17. When the plastic film is wrapped to the bottom of the carton, the lower limit member 11 extends into the lower mounting seat 4, so that the plastic film can be smoothly wrapped around the bottom of the carton. In this process, when the lower lifting plate 9 moves downward, the upper lifting plate 8 is synchronously driven downward by the second linkage rod 18. During the downward movement of the upper lifting plate 8, the upper limit member 10 is moved down to the side of the top of the carton, and then the top of the carton is stably limited by the upper limit member 10.

[0042] Similarly, when the first slide 13 moves up to wrap around the top of the carton, the lower lifting plate 9 moves up so that the lower limit member 11 can stably limit the bottom of the carton, and the upper lifting plate 8 drives the upper limit member 10 to move up to the upper mounting seat 3, thereby allowing the top of the carton to be wrapped smoothly.

[0043] In summary, when the bottom of the carton is wrapped with a film, the lower limiter 11 extends into the lower mounting seat 4, and the upper limiter 10 extends out of the upper mounting seat 3. At this time, the upper limiter 10 is used to wrap the top of the carton with a film; when the top of the carton is wrapped with a film, the upper limiter 10 extends into the upper mounting seat 3, and the lower limiter 11 extends out of the lower mounting seat 4. At this time, the lower limiter 11 is used to wrap the bottom of the carton with a film. The upper limiter 10 and the lower limiter 11 are then used to alternately limit the carton, so that during the process of wrapping the carton with plastic film, the upper limiter 10 and the lower limiter 11 will not hinder the wrapping of the carton, and at the same time, the stability of the carton during the rotation and wrapping process can be effectively guaranteed.

[0044] Further, refer to Figure 1 and Figure 2 A support plate 19 is installed in the lower mounting seat 4 along the horizontal direction. The support plate 19 is located below the lower lifting plate 9. A first auxiliary spring 20 is installed between the support plate 19 and the lower lifting plate 9 along the vertical direction. The first auxiliary spring 20 can buffer the lower lifting plate 9 when the lower lifting plate 9 descends, and can assist in resetting the lower lifting plate 9 during the upward movement of the lower lifting plate 9. The first auxiliary spring 20 helps stabilize the lower lifting plate 9 during the lifting process. In this embodiment, a plurality of first auxiliary springs 20 are provided, and the plurality of first auxiliary springs 20 are evenly distributed between the support plate 19 and the lower lifting plate 9.

[0045] Furthermore, an adjustment mechanism is added in the upper mounting seat 3 and the lower mounting seat 4, and the adjustment mechanism is used to adjust the size of the corresponding upper limit member 10 or lower limit member 11. Since the plastic film will be continuously wrapped around the carton, the carton will become thicker and thicker. If the size of the upper limit member 10 and the lower limit member 11 remains fixed, when the upper limit member 10 or the lower limit member 11 is lifted and slid up and down, the gradual thickening of the carton will interfere with the sliding of the upper limit member 10 or the lower limit member 11, thereby affecting the normal positioning of the carton by the upper limit member 10 or the lower limit member 11, which is not conducive to the normal plastic film wrapping of the carton.

[0046] In this embodiment, the adjustment mechanism adjusts the corresponding upper limit member 10 or lower limit member 11 in the same manner, and the adjustment process of the limit member 11 is described below for ease of understanding.

[0047] Specifically, refer to Figure 1 and Figure 2 The lower limit member 11 is composed of four limit rods, which form a "mouth"-shaped structure as a whole. These limit rods are used to limit the peripheral sides of the carton, thereby effectively preventing the carton from falling off the rotating table 7 due to centrifugal force during rotation.

[0048] Reference Figure 1 and Figure 2 Specifically, the adjustment mechanism is composed of four groups of adjustment components, which correspond to the limit rods one by one. The adjustment components include a second slide rail 21 and a second slide seat 22. The second slide rail 21 is fixed to the top of the lower lifting plate 9 in the horizontal direction. The second slide rail 21 is provided with a long strip of slide groove 23 along its length direction. The second slide seat 22 is slidably installed in the slide groove 23. The second slide seat 22 includes a first block 221 and a second block 222 that are connected in one piece. The first block 221 is arranged horizontally, and the second block 222 is arranged vertically. The first block 221 is slidably installed in the slide groove 23. A connecting rod 24 is integrally formed between the first block 221 and the corresponding limit rod in the vertical direction. During the sliding process of the first block 221 in the slide groove 23, the corresponding limit rod is driven to slide by the connecting rod 24. The four first blocks 221 are in a "cross" shape as a whole, so that the four limit rods can be driven by the four first blocks 221 to slide towards or away from each other, and the size of the lower limit member 11 can be adjusted to effectively ensure that the lower limit member 11 can stably limit cartons of different sizes and thicknesses.

[0049] Specifically, refer to Figure 1 , Figure 2 as well as Figure 3 A driving member 25 is installed in the lower mounting seat 4. The driving member 25 is cone-shaped as a whole. Through holes are formed on the support plate 19 and the lower lifting plate 9. The top of the driving member 25 passes through the through hole on the support plate 19 upward and extends into the through hole of the lower lifting plate 9. The second block 222 extends into the through hole of the lower lifting plate 9 in the vertical direction. The side of the second block 222 close to the driving member 25 is in an arc-shaped wedge shape.

[0050] As the lower lifting plate 9 moves downward, when one side of the wedge-shaped second block 222 abuts against the driving member 25, these second blocks 222 slide in the directions away from each other, and then these second blocks 222 drive the corresponding first blocks 221 to slide in the directions away from each other, so that the size of the lower limit member 11 can be adjusted to effectively ensure that the lower limit member 11 can stably limit cartons of different sizes and thicknesses.

[0051] By means of the adjustment mechanism, the upper limit member 10 and the lower limit member 11 can adjust their own sizes accordingly while sliding up and down, so that the upper limit member 10 and the lower limit member 11 will not hinder the winding of the cartons, and can also stably limit the cartons of different sizes and thicknesses.

[0052] Furthermore, a cylinder is installed at the bottom of the driving member 25, the cylinder body of the cylinder is fixed on the corresponding fixing plate, and the piston rod of the cylinder is vertically connected to the bottom of the driving member 25. The cylinder is used to further increase the range of motion of the driving member 25, which is conducive to increasing the range of the driving member 25 to adjust the size of the lower limit member 11, and thus is conducive to improving the adaptability of the lower limit member 11.

[0053] Further, refer to Figure 1 and Figure 2 A second auxiliary spring 26 is installed in the slide groove 23 along the horizontal direction, one end of the second auxiliary spring 26 is integrally connected to the inner wall of the second slide rail 21, and the other end of the second auxiliary spring 26 is integrally connected to the side wall of the first block 221. When the first block 221 slides in the corresponding slide groove 23, the second auxiliary spring 26 is used to buffer the sliding of the first block 221, which is beneficial to ensure the stability of the limit rod during the sliding process.

[0054] Furthermore, a limit assembly is provided between the second slide rail 21 and the first block 221, and the limit assembly is used to lock the limit rod after adjusting the position, so as to effectively prevent the limit rod after adjusting the position from being displaced when limiting the carton and affecting the normal wrapping of the plastic film on the carton.

[0055] Specifically, refer to Figure 3 The limiting assembly includes a limiting block 27 and a limiting hole 28. The limiting block 27 is integrally formed at the bottom of the first block 221. The limiting hole 28 is formed through the bottom of the second slide rail 21. A plurality of limiting holes 28 are formed along the length direction of the second slide rail 21. The first block 221 slides in the slide groove 23, and the limiting block 27 is inserted into the corresponding limiting hole 28 to lock the position of the first block 221, thereby locking the limiting rod whose position adjustment is completed.

[0056] In this embodiment, the limit block 27 is made of elastic material, and the depth of the limit block 27 inserted into the limit hole 28 is relatively shallow, and it is only necessary to ensure that when the first block 221 is not subjected to external force, the limit block 27 can be stably inserted into the limit hole 28. The purpose of this is that when the size of the lower limit member 11 needs to be further adjusted, when the driving member 25 drives the first block 221 to slide in the slide groove 23 through the second block 222, the limit block 27 can smoothly slide out of the corresponding limit hole 28 and slide into another limit hole 28, thereby completing the re-adjustment of the position of the limit rod.

[0057] That is, when the limit block 27 is inserted into the limit hole 28, the position of the limit rod is adjusted, and the lower limit member 11 can rise again to limit the thickened carton. In this state, when the first block 221 is not subjected to external force, the limit block 27 can be stably inserted into the limit hole 28. Only when the driving member 25 applies a driving force to the first block 221, the limit block 27 slides out of the corresponding limit hole 28 and slides into another limit hole 28, thereby completing the re-adjustment of the position of the limit rod.

[0058] The implementation principle of a logistics carton film wrapping device in the embodiment of the present application is: The carton is placed on the rotating table 7, and the carton starts to rotate with the rotating table 7, and the first slide 13 starts to rise and fall on the first slide rail 12. As the carton rotates and the first slide 13 rises and falls, the tensioning roller tensions the plastic film, and the plastic film on the winding roller is gradually wound around the carton.

[0059] When the plastic film is wrapped around the position of the lower limiter 11, the lower limiter 11 gradually slides into the lower mounting seat 4, and as the lower limiter 11 gradually moves down, the plastic film can be smoothly wrapped around the side of the bottom of the carton. In this process, while the lower limiter 11 gradually moves down, the upper limiter 10 moves down synchronously, and then the top of the carton is limited by the upper limiter 10, so as to effectively ensure the stability of the carton during the rotation process. When the plastic film is wrapped around the position of the upper limiter 10, the upper limiter 10 gradually slides into the upper mounting seat 3, and as the upper limiter 10 gradually moves up, the plastic film can be smoothly wrapped around the side of the top of the carton. In this process, while the upper limiter 10 gradually moves up, the lower limiter 11 moves up synchronously, and then the bottom of the carton is limited by the lower limiter 11, so as to effectively ensure the stability of the carton during the rotation process.

[0060] This arrangement utilizes the upper limit member 10 and the lower limit member 11 to alternately limit the position of the carton, so that during the plastic film wrapping process of the carton, the upper limit member 10 and the lower limit member 11 will not hinder the wrapping of the carton, and at the same time can effectively ensure the stability of the carton during the rotation and wrapping process.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A logistics carton film wrapping device, characterized in that: The invention comprises a base plate (1), a mounting frame (2), an upper mounting seat (3) and a lower mounting seat (4), wherein the base plate (1) is anchored to the ground, the mounting frame (2) is fixed to the top of the base plate (1) in the vertical direction, the upper mounting seat (3) and the lower mounting seat (4) are respectively fixed to the upper and lower ends of the mounting frame (2), the upper mounting seat (3) and the lower mounting seat (4) are both hollow inside, a plurality of support rods (5) are arranged in the lower mounting seat (4) at intervals in the horizontal direction, a first motor (6) is installed on the top of the plurality of support rods (5), the driving end of the first motor (6) is vertically upward, and the driving end of the first motor (6) is horizontally A rotating table (7) is installed, and an upper lifting plate (8) and a lower lifting plate (9) are installed in the upper mounting seat (3) and the lower mounting seat (4) in the horizontal direction. The upper lifting plate (8) and the lower lifting plate (9) are respectively provided with an upper limit member (10) and a lower limit member (11) for limiting the position of the carton on the side close to each other. The upper lifting plate (8) and the lower lifting plate (9) are both slidably arranged in the vertical direction. The upper limit member (10) is used to limit the top peripheral side of the carton, and the lower limit member (11) is used to limit the bottom peripheral side of the carton. The upper limit member (10) and the lower limit member (11) are alternately used to limit the position of the carton.

2. A logistics carton film wrapping device according to claim 1, characterized in that: A first slide rail (12) is provided at the top of the base plate (1) in the vertical direction. The first slide rail (12) is fixed to the top of the base plate (1). A first slide seat (13) is slidably installed on the side wall of the first slide rail (12). Corresponding winding rollers and tensioning rollers are installed on the first slide seat (13) in the vertical direction. A second motor (14) is installed at the top of the first slide rail (12). The driving end of the second motor (14) faces vertically downward, and a screw rod (15) is installed at the driving end of the second motor (14) in the vertical direction. The screw rod (15) is inserted into the inside of the first slide rail (12). A lifting seat (16) is installed inside the first slide rail (12). The screw rod (15) passes through the lifting seat (16) and is threadedly matched with the lifting seat (16), and the side wall of the first slide seat (13) is connected to the lifting seat (16). The side wall of the lifting seat (16) is integrally connected to the lower lifting plate (9) via a first linkage rod (17), and the lower lifting plate (9) and the upper lifting plate (8) are integrally connected via a second linkage rod (18).

3. A logistics carton film wrapping device according to claim 2, characterized in that: A support plate (19) is installed in the lower mounting seat (4) along the horizontal direction, the support plate (19) is located below the lower lifting plate (9), and a first auxiliary spring (20) is installed between the support plate (19) and the lower lifting plate (9) along the vertical direction.

4. A logistics carton film wrapping device according to claim 3, characterized in that: The upper mounting seat (3) and the lower mounting seat (4) are both provided with adjustment mechanisms, and the adjustment mechanisms are used to adjust the size of the corresponding upper limit member (10) or the lower limit member (11).

5. A logistics carton film wrapping device according to claim 4, characterized in that: The lower limit member (11) is composed of a plurality of limit rods, the plurality of limit rods are in a "mouth" shape, the adjustment mechanism is composed of a plurality of adjustment components, and the plurality of adjustment components correspond to the plurality of limit rods one by one; The adjustment assembly comprises a second slide rail (21) and a second slide seat (22); the second slide rail (21) is fixed to the top of the lower lifting plate (9) in the horizontal direction; a slide groove (23) is provided along the length direction of the second slide rail (21); the second slide seat (22) is slidably installed in the slide groove (23); the second slide seat (22) comprises a first block (221) and a second block (222) which are connected in one piece; the first block (221) is arranged horizontally, and the second block (222) is arranged vertically; the first block (221) is slidably installed in the slide groove (23); a connecting rod (24) is integrally formed between the first block (221) and the corresponding limiting rod in the vertical direction.

6. A logistics carton film wrapping device according to claim 5, characterized in that: A driving member (25) is installed in the lower mounting seat (4), and the driving member (25) is cone-shaped as a whole. Through holes are opened on the support plate (19) and the lower lifting plate (9). The top of the driving member (25) passes through the through hole on the support plate (19) upward and extends into the through hole of the lower lifting plate (9). The second block (222) extends into the through hole of the lower lifting plate (9) in a vertical direction. The side of the second block (222) close to the driving member (25) is in an arc-shaped wedge shape. The driving member (25) is used to drive the second block (222) to slide.

7. A logistics carton film wrapping device according to claim 6, characterized in that: A second auxiliary spring (26) is installed in the slide groove (23) along the horizontal direction, one end of the second auxiliary spring (26) is integrally connected to the inner wall of the second slide rail (21), and the other end of the second auxiliary spring (26) is integrally connected to the side wall of the first block (221).

8. A logistics carton film wrapping device according to claim 7, characterized in that: A limiting assembly is provided between the second slide rail (21) and the first block (221), and the limiting assembly is used to lock the limiting rod after the position is adjusted.

9. A logistics carton film wrapping device according to claim 8, characterized in that: The limiting assembly comprises a limiting block (27) and a limiting hole (28); the limiting block (27) is integrally formed at the bottom of the first block (221); the limiting hole (28) is penetrated and opened at the bottom of the second slide rail (21); a plurality of limiting holes (28) are opened along the length direction of the second slide rail (21); the limiting block (27) and the limiting hole (28) are plug-fitted.

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