A fully automatic film wrapping machine and a film wrapping method thereof

Abstract

The application discloses a full-automatic film winding machine and a film winding method thereof, wherein the film winding machine comprises a rack, a material conveying channel arranged in the rack, a material receiving mechanism for conveying external material to be wound into the material conveying channel, a pushing mechanism for pushing the material to be wound in the material conveying channel to a film winding area, a rotating disc arranged in the film winding area and used for winding the material to be wound, a transition inserting rod mechanism used for supporting the part of the material to be wound which is stretched out of the material conveying channel so as to perform the film winding operation and ensure the smooth transition of the material to the leading mechanism, the leading mechanism used for clamping the material transmitted by the transition inserting rod mechanism and moving the material by synchronizing with the pushing mechanism so as to perform the film winding operation on the unwound part of the material, and a cutting mechanism used for cutting the excess film raw material on the material. The application solves the technical problem that the existing soft and fluffy material is automatically scattered and cannot be formed and wound in the conveying process.

Description

Technical Field

[0001] This invention relates to the field of material wrapping technology, and in particular to a fully automatic wrapping machine and its wrapping method. Background Technology

[0002] Existing horizontal wrapping machines use a rotating annular wrapping turntable to wrap the material passing through its center. The turntable's rotation forces the material through, and setting the speed at which the turntable and material pass together completes the wrapping of all four sides of the material. However, existing equipment has the following shortcomings:

[0003] (1) When the required material length is equal to or greater than 2 / 3 of the material length, the existing equipment is not applicable. This is mainly because the turntable for installing the film needs to rotate circumferentially, so the entire equipment needs to leave sufficient space for the film to prevent interference and collisions. When the film length is greater than 2 / 3 of the material length, the material will tip over or fall off when passing through the channel break zone, thus failing to function properly.

[0004] (2) Existing horizontal wrapping machines are mainly suitable for wrapping long and hard materials, but not for wrapping soft materials. Moreover, existing horizontal wrapping machines mainly transport materials by belt. If the material is soft and fluffy, it will automatically spread out and not form during the belt conveying process without the constraint of the mechanism, thus making it impossible to wrap.

[0005] (3) Most of the existing films are small or narrow films, which require frequent replacement of the film, and cannot solve the problem of the durability of the film, and the winding frequency is high. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a fully automatic wrapping machine and wrapping method with a compact structure, convenient wrapping, and smooth die cutting.

[0007] The technical solution of this invention is:

[0008] One of the inventions is a fully automatic wrapping machine, comprising:

[0009] A frame, wherein a material conveying channel is provided within the frame;

[0010] A receiving mechanism is used to deliver external materials to be wrapped to the material conveying channel;

[0011] The pushing mechanism is used to push the material to be wrapped in the material conveying channel to the wrapping area;

[0012] A turntable, located in the wrapping area, is used to wrap the material to be wrapped.

[0013] The transition rod mechanism is used to support the part of the material to be wrapped that extends out of the material conveying channel so as to carry out the wrapping operation, while ensuring that the material is smoothly transferred to the receiving mechanism.

[0014] The receiving mechanism is used to clamp the material transmitted by the transition rod mechanism, and moves the material synchronously with the pushing mechanism by pulling and pushing, so as to perform a wrapping operation on the unwrapped part of the material.

[0015] The die-cutting mechanism is used to cut off excess film material from the material.

[0016] Furthermore, it also includes a film-pulling mechanism for hooking the film between the turntable and the wrapped material and pulling it to the film-cutting mechanism.

[0017] Furthermore, the receiving mechanism includes an extrusion plate for extruding the material to be wrapped and a receiving drive mechanism for controlling the extrusion plate to move laterally along the material conveying channel.

[0018] Furthermore, the pushing mechanism includes a pushing cylinder and a servo transmission assembly for driving the pushing cylinder to move within the material conveying channel; the piston end of the pushing cylinder is connected to a push plate for pushing the material to be wrapped; the pushing cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0019] Furthermore, the transition rod mechanism is located within the wrapping area and at the front end of the material conveying channel. It includes several rods and a rod drive mechanism for controlling the movement of the rods. After the several rods extend, they can pass over the turntable and extend to both sides and the bottom of the part of the material to be wrapped that extends out of the material conveying channel, so as to support the material to be wrapped.

[0020] Furthermore, the turntable is provided with a film winding roller for winding film on its surface; the outer circumference of the turntable is provided with a turntable drive wheel and a plurality of limit wheels that are connected thereto; the turntable drive wheel is controlled to rotate by a motor drive assembly to drive the turntable to rotate; the limit wheels are used to brake the turntable.

[0021] Furthermore, the clamping mechanism includes a fixed plate, a movable plate, a movable seat, clamping rods, and a clamping drive mechanism; the fixed plate is connected to the receiving mechanism through a connecting assembly, and multiple telescopic rods are provided between the fixed plate and the movable plate, the telescopic rods being fixedly connected to the movable plate and slidably connected to the fixed plate; the movable plate and the push plate on the pusher cylinder simultaneously squeeze the material and move towards the fixed plate, so that the material to be wrapped is clamped by the clamping rods; there are several clamping rods, which can extend to both sides of the material to be wrapped, and the clamping drive mechanism drives the clamping rods to clamp the material.

[0022] Furthermore, the film-pulling mechanism includes a film-pulling rod and a film-pulling drive unit for driving the film-pulling rod to extend and retract; the film-pulling rod has a bent structure, and the bent part can hook the film between the turntable and the material and pull it to the film-cutting mechanism, where the film is cut by the cutter of the film-cutting mechanism.

[0023] Furthermore, the frame is a horizontal structure, including a first cabinet and a second cabinet arranged on the left and right sides, with the film-wrapping area provided between the first cabinet and the second cabinet; the receiving mechanism, the pushing mechanism, the transition rod mechanism and the material conveying channel are located in the first cabinet, and the guiding mechanism, the die-cutting mechanism and the film-pulling mechanism are located in the second cabinet, with a material support device provided below the guiding mechanism.

[0024] The present invention discloses a wrapping method for a fully automatic wrapping machine, comprising the following steps:

[0025] S1: Send the external material to be wrapped to the material conveying channel, and keep the material in a compressed state during the conveying process;

[0026] S2: The material to be wrapped in the material conveying channel is pushed to the wrapping area by the pushing mechanism. When the material to be wrapped is about to exit the material conveying channel, the rod of the transition rod mechanism is extended. After the material to be wrapped is pushed out of the turntable by a predetermined size, the turntable is started to rotate and the wrapping operation is performed on the part of the material that extends out of the material conveying channel.

[0027] S3: After the film is wrapped, the receiving mechanism moves to the receiving position and clamps the material at the position where the film has been wrapped; the pushing mechanism and the receiving mechanism pull and push in sync to move the material forward to the predetermined size, and the film is wrapped again until the material is completely wrapped by the film, and the film wrapping is completed.

[0028] S4: Cut off the excess film material on the material and output the wrapped material.

[0029] The beneficial effects of this invention are:

[0030] (1) Through the coordinated action of the receiving mechanism, the pushing mechanism, the transition insertion mechanism and the guiding mechanism, on the one hand, it can prevent soft materials from becoming loose during transportation and wrapping, and solve the problem that existing soft and fluffy materials will automatically disperse and not form during transportation, thus making it impossible to wrap; on the other hand, it solves the technical problem that when the length of the wrapping film is close to or equal to the length of the material, the material cannot pass through the wrapping area.

[0031] (2) By setting the insertion rod of the transition insertion rod mechanism and the clamping rod of the receiving mechanism, the material can be wrapped together during the wrapping process and smoothly pulled out after wrapping is completed, thereby ensuring that the material is wrapped tightly and the coverage is complete. This solves the problems of incomplete wrapping and loose wrapping of traditional wrapping machines. The wrapping range is large and the wrapping speed is fast. It will not damage the film, greatly reducing the frequency of film replacement. It also solves the technical problem that the material cannot pass through the wrapping area.

[0032] (3) By setting up a film pulling mechanism, the die cutting process can be ensured to proceed smoothly and the pulling phenomenon can be avoided;

[0033] (4) By placing each device in the first and second cabinets of the rack, it can be enclosed to prevent dust from spilling out and polluting the environment and harming human health; the overall structure is compact and effectively saves equipment space; the equipment cost is low and maintenance is simple. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the internal structure of the frame according to an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the external structure of the frame according to an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the rear structure of the first cabinet of the rack in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the transition rod mechanism according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of the turntable according to an embodiment of the present invention;

[0039] Figure 6 This is a three-dimensional structural diagram of the turntable according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the receiving mechanism according to an embodiment of the present invention;

[0041] Figure 8 yes Figure 1 An enlarged schematic diagram of the film-stretching mechanism in the embodiment shown.

[0042] Explanation of reference numerals in the attached diagram:

[0043] 1. Frame; 2. Receiving mechanism; 3. Pushing mechanism; 4. Transition rod mechanism; 5. Material conveying channel; 6. Turntable; 7. Guiding mechanism; 8. Material support device; 9. Film pulling mechanism; 10. Film cutting mechanism;

[0044] 11. First cabinet; 12. Second cabinet; 31. Pushing cylinder; 32. Servo transmission assembly; 41. Inserting rod; 42. Inserting rod drive cylinder; 43. L-shaped plate; 44. Mounting plate; 45. Connecting rod; 51. Feed port; 61. Turntable mounting plate; 62. Turntable drive motor; 63. Drive wheel; 64. Turntable drive wheel; 65. Groove; 66. Limiting wheel; 67. Film winding roller; 71. Guiding drive mechanism; 72. Clamping mechanism; 91. Film pulling rod; 92. Film pulling drive unit;

[0045] 111. Long strip hole; 711. Chain; 712. Linear guide rail; 713. Guide slider; 721. Fixed plate; 722. Moving plate; 723. Moving seat; 724. Clamping rod; 725. Telescopic rod; 726. Clamping cylinder. Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] like Figure 1 The diagram shows a fully automatic wrapping machine, comprising a frame 1 with a material conveying channel 5 inside; a receiving mechanism 2 for conveying external material to be wrapped to the material conveying channel 5; a pushing mechanism 3 for pushing the material to be wrapped in the material conveying channel 5 to the wrapping area; a turntable 6 located in the wrapping area for wrapping the material; a transition rod mechanism 4 for supporting the portion of the material to be wrapped extending out of the material conveying channel 5 for wrapping operations, while ensuring a smooth transition of the material to the receiving mechanism 7; the receiving mechanism 7 for clamping the material conveyed by the transition rod mechanism 4, and moving the material synchronously with the pushing mechanism 3 by pulling and pushing, so as to wrap the unwrapped portion of the material; a material support device 8 is provided below the receiving mechanism 7; a film pulling mechanism 9 for hooking the film between the turntable 6 and the wrapped material and pulling it to the film cutting mechanism 10; and a die cutting mechanism for cutting off excess film material on the material.

[0048] In this embodiment, the material to be wrapped is a soft material, such as the extruded waste bags output by the ton bag unpacking machine. Usually, 6 to 10 waste bags are extruded in the unpacking machine to form compressed waste bags, which are then sent to the feed inlet 51 of the material conveying channel 5. The receiving mechanism 2 then sends the bags from the feed inlet 51 into the material conveying channel 5, where they are pushed by the pushing mechanism 3.

[0049] In this embodiment, the receiving mechanism 2 includes a pressing plate and a receiving drive mechanism that controls the pressing plate to move laterally along the material conveying channel 5. By setting the pressing plate, the compressed waste bag can be kept from loosening. For example, after the unpacking machine compresses the waste bag into shape, it will be pushed to the feed inlet 51 of the wrapping machine by the cylinder of the unpacking machine. At this time, the pressing plate supports the incoming compressed waste bag at the feed inlet 51. The cylinder of the unpacking machine pushes the waste bag forward, while the pressing plate moves backward under the reverse action. The two work together to ensure that the waste bag does not loosen. The lateral movement of the receiving mechanism 2 along the material conveying channel 5 means moving along the width direction of the material conveying channel 5, while the pushing mechanism 3 moves along the length direction of the material conveying channel 5.

[0050] Preferably, the material receiving drive mechanism can be driven by a cylinder or a motor. For example, when using a cylinder, the extrusion plate can be connected to the piston end of the cylinder via a connector, allowing the extrusion plate to move along the extension and retraction direction of the piston. Alternatively, a motor-driven screw transmission can be used, where the motor drives the screw to rotate, the screw rotation causes the slider to move along the screw axis, and the slider in turn moves the extrusion plate. Since the transmission method is already a conventional technology in this field, it will not be described in detail in this embodiment.

[0051] In this embodiment, the pushing mechanism 3 includes a pushing cylinder 31 and a servo transmission assembly 32 for driving the pushing cylinder 31 to move within the material conveying channel 5. The piston end of the pushing cylinder 31 is connected to a pusher plate for pushing material. The servo transmission assembly 32 includes a servo motor and a transmission component, which converts the rotational motion of the servo motor into linear motion, thereby driving the pushing cylinder 31 to reciprocate within the material conveying channel 5. The transmission component in this embodiment can be a screw drive, chain drive, or gear drive, etc. For example, when a screw drive is used in this embodiment, the servo motor is connected to the screw shaft, and a slider that can be threadedly connected to the screw is provided on the screw. The slider is bolted to the pushing cylinder 31 through a connecting assembly. The screw's rotational motion drives the slider to move along the screw axis, thereby driving the pushing cylinder 31 to reciprocate linearly. By setting the pushing mechanism 3, the material to be wrapped can be pushed towards the turntable 6 by the pushing cylinder 31. Since the material conveying channel 5 is a long tunnel cavity, the servo transmission component 32 can drive the pushing cylinder 31 to move towards the turntable 6, so that the pushing cylinder 31 can always push the bag forward.

[0052] like Figure 2 and Figure 3 As shown: In this embodiment, the frame 1 is a horizontal structure, mainly including a first cabinet 11 and a second cabinet 12 arranged on the left and right sides. Both the first cabinet 11 and the second cabinet 12 are provided with support legs at their bottoms. The width of the first cabinet 11 is smaller than the width of the second cabinet 12. The first cabinet 11 is open on the side connected to the second cabinet 12, thereby communicating with the inner cavity of the second cabinet 12.

[0053] The first cabinet 11 includes an upper section, a middle section, and a lower section. The upper and middle sections house the pushing mechanism 3, and the servo transmission component 32 of the pushing mechanism 3 is installed in the upper section cavity of the first cabinet 11. The pushing cylinder 31 and the extrusion plate of the receiving mechanism 2 are located in the middle section cavity of the first cabinet 11, forming the material conveying channel 5. The inlet 51 is located on the back of the material conveying channel 5, near the pushing cylinder 31. It is understood that the middle section cavity can directly form the material conveying channel 5, or a smaller material conveying channel 5 can be formed by setting a partition. In this embodiment, a partition is preferred to form a smaller material conveying channel 5. This facilitates the placement of corresponding components between the middle section cavity and the material conveying channel 5; furthermore, the width and height of the material conveying channel 5 ensure that the material to be wrapped is compressed and will not become loose during transportation. The lower section of the first cabinet 11 houses the receiving drive mechanism of the receiving mechanism 2, the main control system, and the turntable 6 drive mechanism for controlling the rotation of the turntable 6. The bottom plate of the middle section of the first cabinet 11 has two elongated holes 111 for communicating with the lower section, so that the material receiving drive mechanism located in the lower section can be connected to the extrusion plate located in the inner cavity of the middle section through the elongated holes 111, thereby driving the extrusion plate to move laterally.

[0054] The upper top surface, middle side and / or end surface, and lower side and / or end surface of the first cabinet 11 are all equipped with multiple access doors to facilitate the maintenance of various equipment and improve convenience.

[0055] The turntable 6 is located between the first cabinet 11 and the second cabinet 12. The transition rod mechanism 4 is located on the front side of the turntable 6, specifically in the middle section of the first cabinet 11 near the turntable 6. The second cabinet 12 houses the receiving mechanism 7, the film cutting mechanism 10, and the film pulling mechanism 9. A material support device 8 is located below the receiving mechanism 7 to output the wrapped material. Inspection doors are also provided on the end face and / or side of the second cabinet 12.

[0056] like Figure 4As shown: In this embodiment, the transition rod mechanism 4 includes six rods 41 and a rod drive mechanism for controlling the movement of the rods 41. Each pair of rods 41 forms a group, resulting in three groups in total. Each group is connected to a rod drive mechanism, meaning a total of three rod drive mechanisms are provided. The first group has two rods 41 embedded in the inner wall of one end of the material conveying channel 5, spaced vertically. The second group has two rods 41 embedded in the inner wall of the other end of the material conveying channel 5, also spaced vertically. The third group has two rods 41 embedded in the bottom plate of the material conveying channel 5, spaced horizontally. The two side plates and the bottom plate at the end of the material conveying channel 5 are provided with long strip-shaped slots that allow the insertion rod 41 to extend and retract. The insertion rod 41 extends along the long strip-shaped slots toward the turntable 6 and passes over the turntable 6 to support the front part of the material to be wrapped. Under the rotation of the turntable 6, the front part of the material to be wrapped is wrapped for the first time, and the insertion rod 41 is also wrapped inside. After wrapping for several turns, the insertion rod 41 is removed from the wrapping.

[0057] The insertion rod driving mechanism includes an insertion rod driving cylinder 42. An L-shaped plate 43 is connected to the piston end of the insertion rod driving cylinder 42. The horizontal surface of the L-shaped plate 43 is connected to the piston end, and two insertion rods 41 are connected to the bottom sides of the vertical surface perpendicular to the horizontal surface. Additionally, the insertion rod driving cylinder 42 is connected to a mounting plate 44 with a U-shaped cross-section. The cylinder body of the insertion rod driving cylinder 42 passes through and is fixed to the two vertical surfaces of the mounting plate 44. Connecting rods 45 are also provided on both sides of the insertion rod driving cylinder 42. The connecting rods 45 also pass through the two vertical surfaces of the mounting plate 44 and can move along the two vertical surfaces. Their front ends extend into the horizontal surface of the L-shaped plate 43 and are fixed to the L-shaped plate 43. When the piston of the insertion rod driving cylinder 42 extends or retracts, it can drive the L-shaped plate 43 to move, thereby driving the insertion rods 41 and connecting rods 45 to move. The connecting rod 45 serves as a support and guide element, which helps to achieve coordinated movement between the insertion rod 41 and the L-shaped plate 43, ensuring that the relative positional relationship between the L-shaped plate 43, the insertion rod 41 and the connecting rod 45 is maintained, thereby transmitting movement stably and accurately, and avoiding excessive shaking or instability of the device during piston extension and retraction, thus increasing the stability of the system.

[0058] It is understood that in this embodiment, the insertion rod 41 can be placed directly on the side plate and bottom plate of the material conveying channel 5, or two additional side plates and one bottom plate can be set at the front end of the material conveying channel 5 to place the insertion rod 41. In order to limit the extension length of the insertion rod 41, this embodiment can set a stop on the side plate and bottom plate. When the L-shaped plate 43 touches the stop, it stops moving. The mounting plate 44 of the insertion rod drive mechanism can be fixed to the back of the side plate and the bottom surface of the bottom plate of the material conveying channel 5 by bolts.

[0059] like Figure 5 and Figure 6As shown: In this embodiment, a turntable mounting plate 61 is connected to the film-wrapping area between the first cabinet and the second cabinet. The turntable mounting plate 61 has a large central hole for embedding the turntable 6. The turntable 6 is connected to the central hole of the turntable mounting plate 61 via a bearing. The turntable 6 is driven to rotate by a turntable drive mechanism, which includes a turntable drive motor 62, a drive wheel 63, and a turntable drive wheel 64. The turntable drive motor 62 is shaft-connected to the drive wheel 63, and the drive wheel 63 and the turntable drive wheel 64 are driven by a belt. The turntable drive motor 62 drives the drive wheel 63 to rotate, and then transmits the power to the turntable drive wheel 64 via the belt, which in turn drives the turntable 6 to rotate. The turntable 6 extends a portion along the turntable mounting plate 61, and a groove 65 is provided on the outer circumference of the extended portion, allowing the turntable drive wheel 64 to be embedded in the groove 65 and drive the turntable to rotate.

[0060] Since the turntable 6 will continue to rotate due to inertia after it stops rotating, a turntable limiting mechanism is also provided in this embodiment to stop the turntable 6 immediately and prevent excessive film wrapping. The turntable limiting mechanism includes multiple limiting wheels 66 disposed around the turntable 6. The limiting wheels 66 slide and rub against the grooves 65 that are engaged with the turntable. The limiting wheels 66 are preferably made of flexible and wear-resistant materials such as rubber. This material can provide sufficient friction during the friction process, while reducing damage and wear to the turntable. It is also necessary to ensure that no excessive resistance is generated when the turntable drive wheel 64 drives the turntable 6 to rotate, thereby preventing the turntable from having difficulty rotating. When the turntable drive wheel 64 stops rotating, the multiple limiting wheels 66 act as brakes through friction with the turntable 6, preventing the turntable from exceeding the predetermined rotation angle or over-rotating.

[0061] In this embodiment, a preferred arrangement of the limiting wheels 66 and the drive wheels is as follows: both the turntable drive wheel 64 and the limiting wheels 66 are mounted on the turntable mounting plate 61. There are five limiting wheels 66, which, when combined with the turntable drive wheel 64, divide the turntable into six equal parts. The adjacent limiting wheels 66 and the limiting wheels 66 form a 60° angle with the turntable drive wheel 64. The turntable drive wheel 64 is located below the turntable, while the other five limiting wheels 66 are distributed above and on both sides of the turntable.

[0062] It is understandable that, in order to reduce the weight of the turntable, weight-reducing holes may also be provided on the surface of the turntable in this embodiment.

[0063] In this embodiment, a film winding roller 67 for wrapping film is provided on the surface of the turntable, so that the material is wrapped with film on the outer periphery under the rotation of the turntable.

[0064] In this embodiment, the receiving mechanism 7 is used to move toward the transition rod mechanism 4 and connect with the transition rod mechanism 4. It gradually transfers the material that has been partially wrapped on the transition rod mechanism 4 to the receiving mechanism 7 and clamps it. The front and middle parts of the material are wrapped a second time. After the wrapping is completed, the pushing cylinder 31 continues to push the material under the drive of the servo transmission component 32. It works together with the receiving mechanism 7 to make the material detach from the transition rod mechanism 4 and be clamped only by the receiving mechanism 7. Then, the middle and rear parts of the material are wrapped a third time until the material is completely wrapped with film, and the wrapping is completed.

[0065] like Figure 7 As shown: In this embodiment, the guiding mechanism 7 includes a guiding drive mechanism 71 and a clamping mechanism 72. The guiding drive mechanism 71 includes a guiding motor and a guiding transmission assembly. The guiding transmission assembly is used to convert the rotational motion of the guiding motor into linear motion, thereby driving the clamping mechanism 72 to move horizontally. The guiding transmission assembly in this embodiment can be a screw drive, chain drive, belt drive, or gear drive, etc. This embodiment preferably uses a horizontal chain drive mechanism, which can stably transmit power even under heavy loads. A preferred structure of the horizontal chain drive mechanism is as follows: it includes at least one sprocket, a horizontally arranged chain 711, a linear guide rail 712, and a guiding slider 713 that can move on the linear guide rail 712. The guiding motor is connected to the sprocket via a gearbox, driving the sprocket to rotate. The sprocket meshes with the chain 711, and the chain 711 connects to the guiding slider 713. During the movement, the chain 711 drives the guiding slider 713 to move horizontally on the linear guide rail 712. The guide slider 713 is connected to the clamping mechanism 72 through a connecting component, thereby driving the clamping mechanism 72 to reciprocate.

[0066] In this embodiment, the clamping mechanism 72 includes a fixed plate 721, a movable plate 722, a movable seat 723, clamping rods 724, and a clamping drive mechanism. The fixed plate 721 is fixedly connected to the guide slider 713 via a connecting assembly; multiple telescopic rods 725 are provided between the fixed plate 721 and the movable plate 722. The telescopic rods 725 are fixedly connected to the movable plate 722 and also slidably connected to the fixed plate 721. Preferably, there are four telescopic rods 725, connected at the four corners of the movable plate 722. When the material pushes the movable plate 722, the telescopic rods 725 retract and extend towards the back of the fixed plate 721. Once the movable plate 722 is pressed against the fixed plate 721, the movable plate 722 stops moving. The telescopic rods 725 are threaded to the fixed plate 721 via a sliding sleeve, allowing the telescopic rods 725 to move along the sliding sleeve; the front end of the telescopic rod 725 may be threaded and fixed to the movable plate 722 with a nut.

[0067] There are two movable seats 723, each connected to the rear side of the fixed plate 721. Each movable seat 723 has a clamping rod 724 connected to its outer side, extending towards the turntable 6. Preferably, this embodiment provides two clamping rods 724 on the outer side of each movable seat 723, for a total of four. When the movable plate 722 is pressed against the fixed plate 721, it will not obstruct the clamping rods 724, allowing the clamping rods 724 to hold the material. The clamping rods 724 are controlled to clamp the material by a clamping drive mechanism, which includes two clamping cylinders 726, each fixed to the rear side of the movable seat 723, used to drive the movable seat 723 to move horizontally to achieve the clamping function of the clamping rods 724. For example, in this embodiment, the two movable seats 723 are a left movable seat and a right movable seat. The clamping cylinder 726 fixed to the left movable seat has its piston end connected to the right movable seat and is used to control the left and right movement of the right movable seat. The clamping cylinder 726 fixed to the right movable seat has its piston end connected to the left movable seat and is used to control the left and right movement of the left movable seat. The two clamping cylinders 726 control the clamping rod 724 on the movable seat 723 to clamp the material by retracting.

[0068] The receiving drive mechanism 71 drives the clamping mechanism 72 to move towards the material direction, so that the moving plate 722 presses down on the front of the material, while the rear of the material is pressed down by the push plate of the pushing cylinder 31, thereby preventing the material from loosening. The pushing cylinder 31 pushes the material towards the clamping mechanism 72, and the moving plate 722 moves backward under the push of the material, sticking tightly to the fixed plate 721. The material is located between the clamping rods 724 on both sides. At this time, the material has not completely left the material conveying channel 5. The front of the material is clamped by the clamping rods 724, and the rear is located in the material conveying channel 5 and between the rods of the transition rod mechanism 4. The turntable 6 rotates again to perform a second wrapping of the front and middle of the material, and the rods 41 of the transition rod mechanism 4 and the clamping rods 724 of the clamping mechanism 72 are also partially wrapped by the film. After winding is complete, the receiving drive mechanism 71 drives the clamping mechanism 72 to retract, while the push plate of the pushing cylinder 31 presses down on the rear of the material and pushes it forward. The material completely detaches from the material conveying channel 5, and the insert rod of the transition insert mechanism 4 disengages from the film, only being held by the clamping rod 724 of the clamping mechanism 72. When the clamping mechanism 72 retracts to the target position, a material support device 8 is provided below it, which has rollers to facilitate the movement of the material by the receiving mechanism 7. The material is held by the clamping rod 724 with its front part placed on the material support device 8. Then, the turntable 6 is started again to perform a third winding of the middle and rear parts of the material until the material is completely wrapped by the film, and the winding is completed. After the material is wound, the material continues to move forward, held by the clamping rod 724 of the clamping mechanism 72, away from the turntable 6. At the same time, the film pulling mechanism 9 extends to pull the film on the turntable 6 and cuts it through the film cutting mechanism 10.

[0069] like Figure 8As shown: In this embodiment, the film-pulling mechanism 9 includes a film-pulling rod 91 and a film-pulling drive unit 92 for driving the film-pulling rod to extend and retract. The film-pulling mechanism 9 is located below the material support device 8. The film-pulling rod 91 has an L-shaped structure, including a horizontal rod and a vertical rod bent downwards along the end of the horizontal rod. The film-pulling drive unit 92 is preferably a cylinder. When the film-pulling rod 9 extends, the turntable 6 is restarted. At this time, the film is still connected to the material. Under the rotation of the turntable 6, the film moves from below the film-pulling rod 91 to above it. Then, the film-pulling rod 91 is controlled to retract. During the retraction process, the vertical rod of the film-pulling rod 91 hooks the film and pulls it to the film-cutting mechanism 10. The clamping rod 724 of the clamping mechanism holds the material and continues to move on the material support device 8. During the movement, the cutter of the film-cutting mechanism 10 cuts the film. The cut film-wrapped material is then sent to the conveying device by the receiving mechanism 7 and output by the conveying device.

[0070] In this embodiment, the control system is electrically connected to the electrical control devices of each mechanism to achieve automated film wrapping of the wrapping machine.

[0071] The specific structure of the wrapping machine and the working principle of each mechanism have been described above. This embodiment uses waste bags as an example to illustrate its wrapping method in detail:

[0072] S101: After the unpacking machine compresses the waste bag into shape, the waste bag outlet of the unpacking machine is connected to the inlet 51 of the material conveying channel 5. The receiving mechanism 2 moves to the inlet 51 of the material conveying channel 5 to receive the material and send the material to be wrapped to the material conveying channel 5. During the conveying process, the waste bag is compressed by the extrusion plate to prevent it from falling apart.

[0073] S102: The pushing mechanism 3 pushes the waste bag that has been received horizontally from the material conveying channel 5 by a certain size, and during the pushing process, the size of the material conveying channel 5 can ensure that the waste bag will not fall apart.

[0074] S103: When the waste bag is about to exit the material conveying channel 5, control the transition rod mechanism 4 to extend, and then push the waste bag out of the turntable 6 by a certain size. Then start the turntable 6 to drive the film roll to rotate, and perform the first wrapping of the part of the waste bag that extends out of the material conveying channel 5.

[0075] S104: After the first wrapping is completed, the turntable 6 stops rotating, the receiving mechanism 7 moves to the receiving position and clamps the wrapped waste bag; then the pushing mechanism 3 and the receiving mechanism 7 pull and push synchronously to move the waste bag forward a certain size, and the turntable 6 is started again to wrap the waste bag (the wrapping mode can be selected to wrap the waste bag after it moves or wrap the waste bag while it moves) until the material is completely wrapped by the film, and the wrapping is completed;

[0076] S105: After the entire bundle of waste bags is wrapped, it is pushed by the pushing mechanism 3 and the receiving mechanism 7 to the top of the material support device 8. Then the film pulling mechanism 9 extends, and the turntable 6 is started to drive the film roll to rotate, wrapping the film onto the film pulling rod 91 of the film pulling mechanism 9. Then the film pulling mechanism 9 is retracted, and the film cutting mechanism 10 cuts the pulled film.

[0077] S106: Finally, the wrapped waste bag is pulled from above the material support device 8 to the conveyor below the receiving mechanism 7 by the receiving mechanism 7, and the wrapped waste bag is output.

[0078] Furthermore, the term "connection" should be interpreted broadly, for example, it can include fixed connections, detachable connections, or integral connections; it can include direct connections or indirect connections through an intermediate medium, and it can also include internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A fully automatic wrapping machine, characterized in that, include: A frame, wherein a material conveying channel is provided within the frame; A receiving mechanism is used to deliver external materials to be wrapped to the material conveying channel; The pushing mechanism is used to push the material to be wrapped in the material conveying channel to the wrapping area; A turntable, located in the film-wrapping area, is used to wrap the material to be wrapped; the turntable surface is provided with a film-winding roller for wrapping the film; the outer circumference of the turntable is provided with a turntable drive wheel and a plurality of limit wheels that are connected thereto; the turntable drive wheel is controlled to rotate by a motor drive assembly to drive the turntable to rotate; the limit wheels are used to brake the turntable; The transition rod mechanism is used to support the part of the material to be wrapped that extends out of the material conveying channel, so as to carry out the wrapping operation and ensure that the material smoothly transitions to the receiving mechanism. The transition rod mechanism is located in the wrapping area and at the front end of the material conveying channel. It includes several rods and a rod drive mechanism for controlling the movement of the rods. After the several rods extend out, they can pass over the turntable and extend to both sides and the bottom of the part of the material to be wrapped that extends out of the material conveying channel, so as to support the material to be wrapped. A receiving mechanism is used to clamp the material transferred by the transition rod mechanism and moves the material synchronously with the pushing mechanism by pulling and pushing to perform a wrapping operation on the unwrapped portion of the material. The receiving mechanism includes a receiving drive mechanism and a clamping mechanism. The clamping mechanism includes a fixed plate, a moving plate, a moving seat, clamping rods, and a clamping drive mechanism. The fixed plate is connected to the receiving drive mechanism through a connecting assembly. Multiple telescopic rods are provided between the fixed plate and the moving plate. The telescopic rods are fixedly connected to the moving plate and slidably connected to the fixed plate. The moving plate and the push plate on the pusher cylinder simultaneously squeeze the material and move it towards the fixed plate, so that the material to be wrapped is clamped by the clamping rods. There are several clamping rods, which can extend to both sides of the material to be wrapped. The clamping drive mechanism drives the clamping rods to clamp the material. The die-cutting mechanism is used to cut off excess film material from the material.

2. The fully automatic wrapping machine according to claim 1, characterized in that, It also includes a film-pulling mechanism, which hooks the film between the turntable and the wrapped material and pulls it to the film-cutting mechanism.

3. The fully automatic wrapping machine according to claim 1, characterized in that, The receiving mechanism includes an extrusion plate for extruding the material to be wrapped and a receiving drive mechanism for controlling the extrusion plate to move laterally along the material conveying channel.

4. The fully automatic wrapping machine according to claim 1, characterized in that, The pushing mechanism includes a pushing cylinder and a servo transmission component for driving the pushing cylinder to move within the material conveying channel; the piston end of the pushing cylinder is connected to a pushing plate for pushing the material to be wrapped; the pushing cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

5. The fully automatic wrapping machine according to claim 2, characterized in that, The film pulling mechanism includes a film pulling rod and a film pulling drive unit for driving the film pulling rod to extend and retract; the film pulling rod has a bent structure, and the bent part can hook the film between the turntable and the material and pull it to the film cutting mechanism, where the film is cut by the cutter of the film cutting mechanism.

6. The fully automatic wrapping machine according to claim 2, characterized in that, The frame is a horizontal structure, including a first cabinet and a second cabinet arranged on the left and right sides, with the film wrapping area between the first cabinet and the second cabinet; the receiving mechanism, the pushing mechanism, the transition rod mechanism and the material conveying channel are located in the first cabinet, and the guiding mechanism, the die cutting mechanism and the film pulling mechanism are located in the second cabinet, with a material support device located below the guiding mechanism.

7. A wrapping method for a fully automatic wrapping machine according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1: Send the external material to be wrapped to the material conveying channel, and keep the material in a compressed state during the conveying process; S2: The material to be wrapped in the material conveying channel is pushed to the wrapping area by the pushing mechanism. When the material to be wrapped is about to exit the material conveying channel, the rod of the transition rod mechanism is extended. After the material to be wrapped is pushed out of the turntable by a predetermined size, the turntable is started to rotate and the wrapping operation is performed on the part of the material that extends out of the material conveying channel. S3: After the film is wrapped, the receiving mechanism moves to the receiving position and clamps the material at the position where the film has been wrapped; the pushing mechanism and the receiving mechanism pull and push in sync to move the material forward to the predetermined size, and the film is wrapped again until the material is completely wrapped by the film, and the film wrapping is completed. S4: Cut off the excess film material on the material and output the wrapped material.

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