Full-automatic film winding machine and film winding method thereof

Abstract

The invention discloses a full-automatic film winding machine and a film winding method thereof. The film winding machine comprises a rack, and a material conveying channel is arranged in the rack; the material receiving mechanism is used for conveying an external material to be wrapped with a film to the material conveying channel; the pushing and extruding mechanism is used for pushing and extruding the to-be-wrapped materials in the material conveying channel to a film wrapping area; the rotating disc is arranged in the film winding area and is used for winding a film on the material to be wound with the film; the transition insertion rod mechanism is used for supporting the part, extending out of the material conveying channel, of the to-be-wound material, so that film winding operation is facilitated, and meanwhile it is ensured that the material is stably transited to the connecting and guiding mechanism; the connecting and guiding mechanism is used for clamping the materials transmitted by the transition inserting rod mechanism and synchronously pulling and pushing the materials together with the pushing and extruding mechanism so as to move the materials, so that film winding operation can be carried out on the non-film-wound parts of the materials; and the die cutting mechanism is used for cutting off redundant roll film raw materials on the materials. The technical problems that existing soft and fluffy materials can be automatically scattered in the conveying process and cannot be formed, and films cannot be wound are solved.

Description

Technical Field

[0001] The invention relates to the technical field of material film wrapping, in particular to a full-automatic film wrapping machine and a film wrapping method thereof. Background Art

[0002] The material to be wrapped in the existing horizontal film wrapping machine passes through the middle ring of the annular film wrapping turntable, and then the material passing through the middle of the turntable is wrapped by the rotation of the turntable. The four sides of the material are wrapped by setting the turntable and the passing speed of the material. However, the existing equipment has the following shortcomings:

[0003] (1) When the length of the material needs to be equal to the length of the wrapping film or the length of the wrapping film is greater than 2 / 3 of the length of the material, the existing equipment cannot be used. This is mainly because the turntable on which the film is installed needs to rotate in a circle, so the entire equipment needs to leave corresponding space for the film to prevent interference and collision. When the length of the wrapping film is greater than 2 / 3 of the length of the material, the material will fall or drop when passing through the channel disconnection area and cannot work normally.

[0004] (2) The existing horizontal film wrapping machines are mainly suitable for wrapping long and hard materials, but not for wrapping soft materials. Moreover, the existing horizontal film wrapping machines mainly convey materials through belts. If the materials are soft and fluffy, they will automatically spread out and not form during the belt conveying process without any mechanism to restrain them, and thus cannot be wrapped.

[0005] (3) Most of the existing ones use small or narrow films, which need to be replaced frequently. The durability problem of the stretch film cannot be solved, and the frequency of wrapping is high. Summary of the invention

[0006] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a fully automatic film wrapping machine and a film wrapping method which have a compact structure, are convenient for film wrapping, and have smooth die cutting.

[0007] The technical solution of the present invention is:

[0008] A fully automatic film wrapping machine of the present invention comprises:

[0009] A frame, wherein a material conveying passage is provided in the frame;

[0010] A material receiving mechanism, used for delivering external materials to be wrapped to the material conveying channel;

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

[0012] A turntable, arranged in the film wrapping area, for wrapping 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 to facilitate the wrapping operation and ensure that the material smoothly transitions to the receiving mechanism;

[0014] The receiving mechanism is used to clamp the material transferred by the transition rod mechanism and to pull and push the material synchronously with the pushing mechanism to perform film wrapping operation on the unwrapped part of the material;

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

[0016] Furthermore, it also includes a film pulling mechanism, which is used to hook the film between the turntable and the film-wrapped material and pull it to the film cutting mechanism.

[0017] Furthermore, the material receiving mechanism includes an extrusion plate for extruding the material to be wrapped and a material 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 in 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 an air cylinder, an oil cylinder or an electric cylinder.

[0019] Furthermore, the transitional insertion rod mechanism is arranged in the wrapping area and located at the front end of the material conveying channel, including a plurality of insertion rods and an insertion rod driving mechanism for controlling the movement of the insertion rods; after the plurality of insertion rods are extended, they can cross the turntable and extend to the two sides and the bottom of the part where the material to be wrapped extends out of the material conveying channel to support the material to be wrapped.

[0020] Furthermore, a film winding roller for winding film is provided on the disk surface of the turntable; a turntable driving wheel and a plurality of limiting wheels are provided on the outer peripheral surface of the turntable to cooperate with and connect with the turntable; the turntable driving wheel is controlled to rotate by a motor driving assembly to drive the turntable to rotate; the limiting wheel is used to brake the turntable.

[0021] Furthermore, the clamping mechanism includes a fixed plate, a movable plate, a movable seat, a clamping rod and a clamping drive mechanism; the fixed plate is connected to the receiving mechanism through a connecting assembly, and a plurality of telescopic rods are provided between the fixed plate and the movable plate, and the telescopic rods are fixedly connected to the movable plate and slidably connected to the fixed plate; the movable plate and the pushing plate on the pushing cylinder squeeze the material at the same time and move toward the direction of the fixed plate, so that the material to be wrapped is clamped by the clamping rod; there are a plurality of clamping rods, which can extend to both sides of the material to be wrapped respectively, 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 driving part for driving the film-pulling rod to extend and retract; the film-pulling rod is a bending structure, and the bending part can hook the film between the turntable and the material and pull it to the film cutting mechanism, and the film is cut by the cutting knife 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, and the film wrapping area is provided between the first cabinet and the second cabinet; the material receiving mechanism, the pushing mechanism, the transition rod mechanism and the material conveying channel are arranged in the first cabinet, and the guiding mechanism, the die cutting mechanism and the film pulling mechanism are arranged in the second cabinet, and a material supporting device is also provided under the guiding mechanism.

[0024] A film wrapping method of a fully automatic film wrapping machine of the present invention comprises the following steps:

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

[0026] S2: Push the material to be wrapped in the material conveying channel to the wrapping area through the pushing mechanism, control the insertion rod of the transition insertion rod mechanism to extend when the material to be wrapped is about to leave the material conveying channel, and then push the material to be wrapped out of the turntable to a predetermined size, start the turntable to rotate, and wrap the part of the material extending out of the material conveying channel;

[0027] S3: After wrapping, the receiving mechanism moves to the material receiving position and clamps the position where the material has been wrapped with film; the pushing mechanism and the receiving mechanism synchronously pull and push the material forward to a predetermined size, and wrap the film again until the material is completely wrapped with film, and the wrapping is completed;

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

[0029] Beneficial effects of the present invention:

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

[0031] (2) By setting the insertion rod of the transition insertion rod mechanism and the clamping rod of the guide mechanism, the material can be wrapped together during the film wrapping process and can be smoothly pulled out after the wrapping is completed, thereby ensuring that the material is wrapped tightly and covered completely, thereby solving the problems of incomplete coverage and loose wrapping of traditional film wrapping machines. In addition, the wrapping range is large, the film wrapping speed is fast, and the film will not be damaged, which greatly reduces the frequency of film replacement and also solves the technical problem that the material cannot pass through the film wrapping area;

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

[0033] (4) By placing each device in the first cabinet and the second cabinet of the rack, closed work can be carried out to prevent dust from spilling out and polluting the environment and harming human health; the overall structure is compact, effectively saving equipment space; the equipment cost is low and maintenance is simple. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

[0040] Figure 7 It is a structural schematic diagram of a guiding mechanism according to an embodiment of the present invention;

[0041] Figure 8 yes Figure 1 An enlarged structural schematic diagram of the film pulling mechanism of the illustrated embodiment.

[0042] Description of the accompanying drawings:

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

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

[0045] 111, long strip hole; 711, chain; 712, linear guide rail; 713, guide slider; 721, fixed plate; 722, movable plate; 723, movable seat; 724, clamping rod; 725, telescopic rod; 726, clamping cylinder. DETAILED DESCRIPTION

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

[0047] like Figure 1 As shown: a fully automatic film wrapping machine, comprising a frame 1, in which a material conveying channel 5 is provided; a material receiving mechanism 2, used for delivering external materials to be wrapped to the material conveying channel 5; a pushing mechanism 3, used for pushing the materials to be wrapped in the material conveying channel 5 to the film wrapping area; a turntable 6, provided in the film wrapping area, used for wrapping the materials to be wrapped; a transition rod mechanism 4, used for supporting the part of the materials to be wrapped extending out of the material conveying channel 5 so as to carry out the film wrapping operation, while ensuring that the materials smoothly transition to the receiving mechanism 7; the receiving mechanism 7, used for clamping the materials transferred by the transition rod mechanism 4, and synchronously pulling and pushing the materials with the pushing mechanism 3, so as to carry out the film wrapping operation on the unwrapped part of the materials, and a supporting device 8 is provided below the receiving mechanism 7; a film pulling mechanism 9, used for hooking the film between the turntable 6 and the wrapped material and pulling it to the film cutting mechanism 10; a die cutting mechanism, used for cutting off the excess roll film raw material on the material.

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

[0049] In this embodiment, the material receiving mechanism 2 includes an extrusion plate and a material receiving driving mechanism that controls the extrusion plate to move laterally along the material conveying channel 5. By providing the extrusion plate, the compressed waste bag can be kept from loosening. For example: after the unpacking machine extrude the waste bag into shape, it will be pushed out to the feed port 51 of the film wrapping machine through the cylinder of the unpacking machine. At this time, the extrusion plate supports the incoming compressed waste bag at the feed port 51, and the cylinder of the unpacking machine pushes the waste bag forward, while the extrusion plate moves backward under the reverse action, and the two work together to ensure that the waste bag will not loosen. Among them, the lateral movement of the material receiving mechanism 2 along the material conveying channel 5 refers to moving along the width direction of the material conveying channel 5, and 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 a cylinder is used, the extrusion plate can be connected to the piston end of the cylinder through a connecting piece, so that the extrusion plate moves along the extension direction of the piston. Alternatively, a motor plus a screw drive method is adopted, in which the motor drives the screw to rotate, and the rotation of the screw drives the slider to move along the axial direction of the screw, and the slider drives the extrusion plate to move. Since the transmission method is already a conventional technology in this field, this embodiment will not be described in detail.

[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 in the material conveying channel 5. Among them, the piston end of the pushing cylinder 31 is connected to a push plate for pushing the material; the servo transmission assembly 32 includes a servo motor and a transmission assembly, and the transmission assembly is used to convert the rotational motion of the servo motor into linear motion, thereby driving the pushing cylinder 31 to reciprocate in the material conveying channel 5. The transmission assembly of this embodiment can be a screw drive, a chain belt drive or a gear drive. For example, when the screw drive is adopted 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, and the slider is bolted to the pushing cylinder 31 through the connecting assembly; the screw drives the slider to move along the axial direction of the screw through its rotational motion, thereby driving the pushing cylinder 31 to reciprocate linearly. By setting up the pushing mechanism 3, the pushing cylinder 31 can be used to push the material to be wrapped toward the turntable 6. Since the material conveying channel 5 is a long tunnel-type cavity, the servo transmission component 32 can drive the pushing cylinder 31 to move toward the turntable 6, so that the pushing cylinder 31 can always squeeze 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, and legs are provided at the bottom of the first cabinet 11 and the second cabinet 12. Among them, the width of the first cabinet 11 is smaller than the width of the second cabinet 12, and the first cabinet 11 is open on the side connected to the second cabinet 12, so as to communicate with the inner cavity of the second cabinet 12.

[0053] The first cabinet 11 further includes an upper section, a middle section and a lower section, wherein the upper section and the middle section are used to accommodate the pushing mechanism 3, and the servo drive assembly 32 of the pushing mechanism 3 is installed in the upper section inner cavity of the first cabinet 11, the pushing cylinder 31 and the extrusion plate of the receiving mechanism 2 are arranged in the middle section inner cavity of the first cabinet 11, and the middle section inner cavity forms the material conveying channel 5, and the feed port 51 is arranged on the back of the material conveying channel 5 and close to the side of the pushing cylinder 31. It can be understood that the middle section inner 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 preferably set to form a smaller material conveying channel 5, which is convenient for setting corresponding components between the middle section inner cavity and the material conveying channel 5 on the one hand; on the other hand, the width and height of the material conveying channel 5 can ensure that the material to be wrapped is in a compressed state and will not be loose during transportation. The lower section of the first cabinet 11 is used to place 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. Among them, the bottom plate of the middle section of the first cabinet 11 is provided with two long strip 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 long strip holes 111, thereby driving the extrusion plate to move horizontally.

[0054] The upper top surface, the middle side surface and / or the end surface, and the lower side surface and / or the end surface of the first cabinet 11 are all provided with a plurality of inspection doors to facilitate the inspection of various equipment and improve convenience.

[0055] The turntable 6 is provided between the first cabinet 11 and the second cabinet 12, and the transition rod mechanism 4 is provided on the front side of the turntable 6, that is, at the middle section of the first cabinet 11 near the turntable 6. The second cabinet 12 is used to place the receiving mechanism 7, the film cutting mechanism 10 and the film pulling mechanism 9. A material support device 8 is also provided below the receiving mechanism 7 to output the film-wrapped material. The end face and / or side face of the second cabinet 12 are also provided with an inspection door.

[0056] like Figure 4As shown: In this embodiment, the transition plug bar mechanism 4 includes six plug bars 41 and a plug bar driving mechanism for controlling the movement of the plug bars 41. Among them, every two plug bars 41 form a group, and there are a total of three groups. The three groups are respectively connected to the plug bar driving mechanism, that is, a total of three plug bar driving mechanisms are provided. Among them, the two plug bars 41 of the first group are embedded in the inner wall of one side of the end of the material conveying channel 5 and arranged at intervals up and down. The two plug bars 41 of the second group are embedded in the inner wall of the other side of the end of the material conveying channel 5 and arranged at intervals up and down. The two plug bars 41 of the third group are embedded in the bottom plate of the material conveying channel 5 and arranged at intervals left and right. Long strip-shaped slot holes capable of enabling the plug bars 41 to stretch are provided on both side plates and the bottom plate at the end position of the material conveying channel 5. The plug bars 41 extend along the long strip-shaped slot holes in the direction towards the turntable 6 and cross over the turntable 6, so as to hold the front part of the material to be film-wound. Under the rotation of the turntable 6, the front part of the material to be film-wound is subjected to the first film-winding, and the connecting plug bars 41 are also wound inside. After winding several turns, control the plug bars 41 to move out of the film-winding.

[0057] The plug bar driving mechanism includes a plug bar driving cylinder 42. The piston end of the plug bar driving cylinder 42 is connected with an L-shaped plate 43. The horizontal plane of the L-shaped plate 43 is connected to the piston end, and both sides of the bottom of the vertical plane perpendicular to the horizontal plane are connected with two plug bars 41. In addition, the plug bar driving cylinder 42 is also connected with a mounting plate 44 with a U-shaped cross-section. The cylinder body of the plug bar driving cylinder 42 passes through the two vertical planes of the mounting plate 44 and is fixed. Connecting rods 45 are also provided on both sides of the plug bar driving cylinder 42. The connecting rods 45 also pass through the two vertical planes of the mounting plate 44 and can move along the two vertical planes. The front ends of the connecting rods 45 extend into the horizontal plane of the L-shaped plate 43 and are fixed on the L-shaped plate 43. When the piston of the plug bar driving cylinder 42 expands and contracts, it can drive the L-shaped plate 43 to move, and then drive the plug bars 41 and the connecting rods 45 to move. Among them, the connecting rods 45 serve as support and guiding elements, which can help realize the coordinated movement between the plug bars 41 and the L-shaped plate 43, ensure the relative position relationship among the L-shaped plate 43, the plug bars 41 and the connecting rods 45 is maintained, so as to stably and accurately transmit the movement, and also avoid excessive shaking or instability of the device during the expansion and contraction of the piston, increasing the stability of the system.

[0058] It can be understood that in this embodiment, the plug bars 41 can be directly placed on the side plates and the bottom plate of the material conveying channel 5, or two additional side plates and one bottom plate can be provided at the front end of the material conveying channel 5 to place the plug bars 41. In order to limit the extension length of the plug bars 41, this embodiment can set stop edges on the side plates and the bottom plate. When the L-shaped plate 43 touches the stop edges, it stops moving. Among them, the mounting plate 44 of the plug bar driving mechanism can be fixed to the back of the side plate of the material conveying channel 5 and the bottom surface of the bottom plate through bolts.

[0059] Such as Figure 5 and Figure 6As shown: In this embodiment, the film wrapping area between the first cabinet and the second cabinet is connected with a turntable mounting plate 61, and a relatively large center hole is provided on the turntable mounting plate 61, and the center hole is used to embed the turntable 6, and the turntable 6 is connected to the center hole of the turntable mounting plate 61 through a bearing. The turntable 6 is driven to rotate by a turntable driving mechanism, and the turntable driving mechanism includes a turntable driving motor 62, a driving wheel 63 and a turntable driving wheel 64. The turntable driving motor 62 is connected to the driving wheel 63, and the driving wheel 63 and the turntable driving wheel 64 are driven by a belt. The turntable driving motor 62 drives the driving wheel 63 to rotate, and then transmits the power to the turntable driving wheel 64 through the belt, and then the turntable driving wheel 64 drives the turntable 6 to rotate. Among them, the turntable 6 extends a part along the turntable mounting plate 61, and a groove 65 is provided on the extended outer ring surface, so that the turntable driving wheel 64 can be embedded in the groove 65 to drive the turntable to rotate.

[0060] Since the turntable 6 will continue to rotate due to inertia after it stops rotating, in order to stop the turntable 6 immediately to prevent excessive film wrapping, a turntable limiting mechanism is also provided in this embodiment. The turntable limiting mechanism includes a plurality of limiting wheels 66 arranged around the turntable 6, and the limiting wheels 66 generate sliding friction with the groove 65 that is inserted into the turntable. The limiting wheels 66 are preferably made of flexible and wear-resistant materials such as rubber. Such materials can provide sufficient friction during the friction process, while reducing damage and wear to the turntable, and ensure that no excessive resistance is generated during the process of the turntable driving wheel 64 driving the turntable 6 to rotate, thereby preventing the turntable from having difficulty in rotating. When the turntable driving wheel 64 stops rotating, the plurality of limiting wheels 66 act as brakes through friction with the turntable 6 to prevent the turntable from exceeding a predetermined rotation angle or excessive rotation.

[0061] A preferred arrangement structure of the limiting wheels 66 and the driving wheels in this embodiment is: the turntable driving wheel 64 and the limiting wheels 66 are both installed on the turntable mounting plate 61, wherein the number of limiting wheels 66 is 5, and after being combined with the turntable driving wheel 64, the turntable can be divided into six equal parts, and the angle between adjacent limiting wheels 66 and between the limiting wheels 66 and the turntable driving wheel 64 is 60°. The turntable driving wheel 64 is arranged below the turntable, and 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, in this embodiment, weight-reducing holes may be provided on the surface of the turntable.

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

[0064] In this embodiment, the guiding mechanism 7 is used to move toward the transition rod mechanism 4, connect with the transition rod mechanism 4, gradually transfer a part of the material that has been rolled on the transition rod mechanism 4 to the guiding mechanism 7 and be clamped, and then the front and middle parts of the material are wrapped for the second time. When the wrapping is completed, the pushing cylinder 31 continues to push the material under the drive of the servo transmission assembly 32, and cooperates with the guiding mechanism 7 to make the material separate from the transition rod mechanism 4, and only clamped by the guiding mechanism 7, and then the middle and rear parts of the material are wrapped for the third time until the material is completely wrapped by the film, and the wrapping is completed.

[0065] like Figure 7 As shown: In this embodiment, the guide mechanism 7 includes a guide drive mechanism 71 and a clamping mechanism 72; the guide drive mechanism 71 includes a guide motor and a guide transmission assembly, and the guide transmission assembly is used to convert the rotational motion of the guide motor into linear motion, thereby driving the clamping mechanism 72 to move horizontally. The guide transmission assembly of this embodiment can be a screw drive, a chain drive, a belt drive or a gear drive. This embodiment is preferably a horizontal chain transmission mechanism, which can stably transmit even under a large load. A preferred structure of the horizontal chain transmission mechanism is: it includes at least one sprocket, a horizontally arranged chain 711, a linear guide rail 712 and a guide slider 713 that can move on the linear guide rail 712; the guide motor is axially connected to the sprocket through a gear box, driving the sprocket to rotate, the sprocket is meshed with the chain 711, the chain 711 is connected to the guide slider 713, and the chain 711 drives the guide slider 713 to move horizontally on the linear guide rail 712 during the movement. The guiding slider 713 is connected to the clamping mechanism 72 via a connecting assembly, 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, a clamping rod 724 and a clamping drive mechanism. The fixed plate 721 is fixedly connected to the guide slider 713 through a connecting assembly; a plurality of telescopic rods 725 are provided between the fixed plate 721 and the movable plate 722, and the telescopic rods 725 are fixedly connected to the movable plate 722 and are also slidably connected to the fixed plate 721. Preferably, the number of telescopic rods 725 is 4, which are connected to the four corners of the movable plate 722. The material pushes the movable plate 722 to make the telescopic rods 725 retreat and extend toward the back of the fixed plate 721. After the movable plate 722 is close to the fixed plate 721, the movable plate 722 stops moving. Among them, the telescopic rod 725 is connected to the fixed plate 721 through a sleeve threaded connection, and the telescopic rod 725 can move along the sleeve; the front end of the telescopic rod 725 can be provided with a thread, and it is fixed to the movable plate 722 through a nut.

[0067] There are two movable seats 723, which are respectively connected to the rear side of the fixed plate 721. The outer side of each movable seat 723 is connected to the clamping rod 724, and the clamping rod 724 extends toward the direction of the turntable 6. In this embodiment, two upper and lower clamping rods 724 are preferably provided on the outer side of each movable seat 723, for a total of four. When the movable plate 722 is close to the fixed plate 721, it will not block the clamping rod 724, and the clamping rod 724 can clamp the material. Among them, the clamping rod 724 is controlled to clamp the material through a clamping drive mechanism, and the clamping drive mechanism includes two clamping cylinders 726, which are respectively fixed to the rear side of the movable seat 723, and are used to drive the movable seat 723 to move horizontally to realize the clamping function of the clamping rod 724. For example, the two moving seats 723 of the present embodiment are respectively a left moving seat and a right moving seat, wherein the clamping cylinder 726 fixed to the left moving seat has its piston end connected to the right moving seat, and is used to control the right moving seat to move left and right; and the clamping cylinder 726 fixed to the right moving seat has its piston end connected to the left moving seat, and is used to control the left moving seat to move left and right. The two clamping cylinders 726 control the clamping rod 724 on the moving seat 723 to clamp the material by contraction.

[0068] The guide drive mechanism 71 drives the clamping mechanism 72 to move toward the material direction, so that the movable plate 722 presses the front of the material, and the rear of the material is pressed by the push plate of the pushing cylinder 31, thereby preventing the material from loosening; the pushing cylinder 31 pushes the material to move in the direction of the clamping mechanism 72, and the movable plate 722 retreats under the push of the material and fits tightly with the fixed plate 721, and 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 rod 724, and the rear is located in the material conveying channel 5 and between the insertion rods of the transition insertion rod mechanism 4, the turntable 6 rotates again, and the front and middle parts of the material are wrapped with film for the second time, and the insertion rod 41 of the transition insertion rod mechanism 4 and the clamping rod 724 of the clamping mechanism 72 are also partially wrapped by the film. When the winding is completed, the receiving drive mechanism 71 drives the clamping mechanism 72 to retreat, and at the same time, the push plate of the pushing cylinder 31 presses the rear part of the material and pushes it forward, so that the material completely leaves the material conveying channel 5, and the insertion rod of the transition insertion rod mechanism 4 is separated from the film, and is only clamped by the clamping rod 724 of the clamping mechanism 72; wherein when the clamping mechanism 72 retreats to the target position, a supporting device 8 is provided below it, and the supporting device 8 is provided with a roller to facilitate the receiving mechanism 7 to move the material. The material is clamped by the clamping rod 724 and the front part is placed on the supporting device 8; then the turntable 6 is started again, and the middle and rear parts of the material are wrapped for the third time, until the material is completely wrapped by the film, and the wrapping is completed. When the material wrapping is completed, the material is clamped by the clamping rod 724 of the clamping mechanism 72 and continues to move forward, away from the turntable 6, and at the same time the film pulling mechanism 9 extends to pull the film on the turntable 6 and cut 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 driving part 92 for driving the film-pulling rod to extend and retract, and the film-pulling mechanism 9 is arranged below the supporting device 8. Among them, the film-pulling rod 91 is an L-shaped structure, including a horizontal rod and a vertical rod bent downward along the end of the horizontal rod, and the film-pulling driving part 92 is preferably a cylinder. When the film-pulling rod 9 is extended, the turntable 6 is started again. At this time, the film is still connected to the material. Under the rotation of the turntable 6, the film is wound from the bottom of the film-pulling rod 91 to the top of the film-pulling rod. Then, the film-pulling rod 91 is controlled to be retracted. 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 clamps the material and continues to move on the supporting device 8. During the movement, the cutter of the film cutting mechanism 10 cuts the film. The film-wrapped material after cutting is 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 electronic control devices of each mechanism to achieve automatic film wrapping of the film wrapping machine.

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

[0072] S101: After the unpacking machine extrude and mold the waste bag, the waste bag outlet of the unpacking machine is connected with the feed port 51 of the material conveying channel 5, and the receiving mechanism 2 moves to the feed port 51 of the material conveying channel 5 to receive the material, and delivers 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 being scattered;

[0073] S102: The pushing mechanism 3 pushes the received waste bags horizontally from the material conveying channel 5 to a certain size, and during the pushing process, the size of the material conveying channel 5 can ensure that the waste bags will not be scattered;

[0074] S103: When the waste bag is about to leave the material conveying channel 5, the transition rod mechanism 4 is controlled to extend, and after the waste bag is pushed out of the turntable 6 to a certain size, the turntable 6 is started to drive the film roll to rotate, and the portion of the waste bag extending out of the material conveying channel 5 is wrapped with film for the first time;

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

[0076] S105: After wrapping, the whole bundle of waste bags is sent to the top of the supporting device 8 by the pushing mechanism 3 and the guiding mechanism 7, and then the film-drawing mechanism 9 is extended, and the turntable 6 is started to drive the film roll to rotate, and the film is wound onto the film-drawing rod 91 of the film-drawing mechanism 9, and then the film-drawing mechanism 9 is retracted, and the film cutting mechanism 10 cuts the pulled back film.

[0077] S106: Finally, the waste bags wrapped with film are dragged from above the supporting device 8 to the conveying device below the guiding mechanism 7 by the guiding mechanism 7, and the waste bags wrapped with film are output.

[0078] In addition, the term "connection" should be understood in a broad sense, for example, it can include fixed connection, detachable connection or integral connection; it can include direct connection, indirect connection through an intermediate medium, and can also include internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fully automatic film wrapping machine, characterized in that: include: A frame, wherein a material conveying passage is provided in the frame; A material receiving mechanism, used for delivering external materials to be wrapped to the material conveying channel; A pushing mechanism is used to push the material to be wrapped in the material conveying channel to the wrapping area; A turntable, arranged in the film wrapping area, for wrapping the material to be wrapped; The transition rod mechanism is used to support the part of the material to be wrapped that extends out of the material conveying channel to facilitate the wrapping operation and ensure that the material smoothly transitions to the receiving mechanism; The receiving mechanism is used to clamp the material transferred by the transition rod mechanism and to pull and push the material synchronously with the pushing mechanism to perform film wrapping operation on the unwrapped part of the material; The die cutting mechanism is used to cut off the excess roll film material on the material.

2. The fully automatic film wrapping machine according to claim 1, characterized in that: It also includes a film pulling mechanism, which is used for hooking the film between the rotating disk and the film-wrapped material and pulling the film to the film cutting mechanism.

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

4. The fully automatic film 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 in 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 an air cylinder, an oil cylinder or an electric cylinder.

5. The fully automatic film wrapping machine according to claim 1, characterized in that: The transitional insertion rod mechanism is arranged in the film wrapping area and at the front end of the material conveying channel, and includes a plurality of insertion rods and an insertion rod driving mechanism for controlling the movement of the insertion rods; after the plurality of insertion rods are extended, they can pass over the turntable and extend to the two sides and the bottom of the part where the material to be wrapped extends out of the material conveying channel, so as to support the material to be wrapped.

6. The fully automatic film wrapping machine according to claim 1, characterized in that: A film winding roller for winding film is provided on the disk surface of the turntable; a turntable driving wheel and a plurality of limiting wheels are provided on the outer peripheral surface of the turntable to cooperate with and connect with the turntable; the turntable driving wheel is controlled to rotate by a motor driving assembly to drive the turntable to rotate; the limiting wheel is used to brake the turntable.

7. The fully automatic film wrapping machine according to claim 4, characterized in that: The clamping mechanism includes a fixed plate, a movable plate, a movable seat, a clamping rod and a clamping drive mechanism; the fixed plate is connected to the receiving mechanism through a connecting assembly, and a plurality of telescopic rods are provided between the fixed plate and the movable plate, and the telescopic rods are fixedly connected to the movable plate and slidably connected to the fixed plate; the movable plate and the push plate on the push cylinder squeeze the material at the same time and move toward the fixed plate, so that the material to be wrapped is clamped by the clamping rod; there are a plurality of clamping rods, which can extend to both sides of the material to be wrapped respectively, and the clamping drive mechanism drives the clamping rods to clamp the material.

8. The fully automatic film wrapping machine according to claim 2, characterized in that: The film-pulling mechanism includes a film-pulling rod and a film-pulling driving part for driving the film-pulling rod to extend and retract; the film-pulling rod is a bending structure, and the bending part can hook the film between the turntable and the material and pull it to the film-cutting mechanism, and the film is cut by the cutting knife of the film-cutting mechanism.

9. The fully automatic film 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, and the film wrapping area is arranged between the first cabinet and the second cabinet; the material receiving mechanism, the pushing mechanism, the transition rod mechanism and the material conveying channel are arranged in the first cabinet, and the guiding mechanism, the die cutting mechanism and the film pulling mechanism are arranged in the second cabinet, and a material supporting device is also arranged under the guiding mechanism.

10. A film wrapping method for a fully automatic film wrapping machine, characterized in that: The following steps are involved: S1: Send the external material to be wrapped to the material conveying channel, and keep the material in an extruded state during the conveying process; S2: Push the material to be wrapped in the material conveying channel to the wrapping area through the pushing mechanism, control the insertion rod of the transition insertion rod mechanism to extend when the material to be wrapped is about to leave the material conveying channel, and then push the material to be wrapped out of the turntable to a predetermined size, start the turntable to rotate, and wrap the part of the material extending out of the material conveying channel; S3: After wrapping, the receiving mechanism moves to the material receiving position and clamps the position where the material has been wrapped with film; the pushing mechanism and the receiving mechanism synchronously pull and push the material forward to a predetermined size, and wrap the film again until the material is completely wrapped with film, and the wrapping is completed; S4: Cut off the excess film roll material on the material and output the wrapped material.

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