Stretch wrap packaging machine

Abstract

The application discloses a wrapping film packaging machine, which comprises a supporting conveying mechanism, a wrapping packaging mechanism and a film end adhering mechanism.The supporting conveying mechanism is used for supporting and conveying tires.The wrapping packaging mechanism is used for wrapping a wrapping film on the tires.The film end adhering mechanism is used for adhering a tape to the end of the wrapping film on the wrapping packaging mechanism and fixing the tape on the tires.The film end adhering mechanism comprises a wrapping film cutting assembly, a tape feeding assembly and a tape adhering assembly.The tape feeding assembly and the tape adhering assembly are arranged, so that the end of the wrapping film can be adhered to the tires by the tape, and the end of the wrapping film does not need to be fixed manually, so that the tire packaging operation is more convenient and fast.

Description

Technical Field

[0001] This invention relates to the technical field of tire packaging, and more specifically, to a stretch film packaging machine. Background Technology

[0002] Car tires are one of the most important components of a car. They come into direct contact with the road surface and work with the car's suspension to mitigate the impacts that the car experiences while driving. Whether it is a semi-steel tire, an all-steel tire, or a special tire, after the tire is manufactured, it needs to be packaged. During the packaging process, the packaging film is passed through the inner hole of the tire and then wrapped around the tire. The tire is packaged by wrapping it multiple times.

[0003] Tire packaging is mostly done using stretch film packaging machines. The main structure of existing stretch film packaging machines includes a machine base and a C-frame. When the tire is supported on the machine base, one side of the tire will enter the C-frame due to the opening of the C-frame. Then the C-frame rotates around its own axis, and the rotation of the C-frame drives the packaging film to be continuously wrapped around the tire.

[0004] In existing tire packaging machines, the packaging film roll is installed on a C-frame. Each time the wrapping begins, the end of the film needs to be manually fixed to the tire before the film is wrapped and packaged, making tire packaging cumbersome and inconvenient. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a stretch film packaging machine, which, through the setting of a tape supply component and a tape application component, can attach the end of the packaging film to the tire with tape, eliminating the need for manual fixing of the end of the packaging film, making the tire packaging operation more convenient and faster.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stretch film packaging machine, including a support conveying mechanism, wherein the support conveying mechanism is used to support and convey a tire;

[0007] A wrapping mechanism for wrapping a packaging film around a tire;

[0008] And a film end bonding mechanism, which is used to attach tape to the end of the packaging film on the wrapping mechanism and to fix the tape to the tire;

[0009] The film end bonding mechanism includes a packaging film cutting assembly, which is used to cut the packaging film;

[0010] A tape supply assembly for supplying tape;

[0011] And an adhesive applicator, which is used to apply the adhesive tape provided by the tape supply assembly to the end of the packaging film cut by the packaging film cutting assembly, and to fix the end of the packaging film to the tire by applying the tape.

[0012] The present invention is further configured such that: the packaging film cutting assembly includes a fixed roller, the axis of which is horizontal and parallel to the width direction of the packaging film;

[0013] A sliding roller, the axis of which is parallel to the axis of the fixed roller and the fixed roller and the sliding roller are at the same height, the sliding roller and the fixed roller are located on both sides of the packaging film respectively, and the sliding roller achieves clamping and releasing of the packaging film by sliding towards and away from the fixed roller;

[0014] And a film cutter, which is disposed below the fixed roller and slides along the sliding direction of the sliding rod to cut the packaging film clamped between the sliding roller and the fixed roller.

[0015] The present invention is further configured such that: the packaging film cutting assembly further includes a fixing frame, the fixing frame being slidable in a direction approaching and away from the wrapping packaging mechanism, and the fixing roller being disposed at one end of the fixing frame near the packaging film and located on the side of the fixing frame near the wrapping packaging mechanism;

[0016] The sliding frame and the fixed frame are located on both sides of the packaging film, respectively. The sliding roller is set on the sliding frame and is located on the side of the sliding frame closer to the wrapping mechanism. The fixed frame is equipped with a hydraulic cylinder that drives the sliding frame to move closer to and away from the fixed frame.

[0017] The present invention is further configured such that: the adhesive application assembly includes a transfer block, the transfer block is hollow inside, a plurality of through holes penetrating the side wall of the transfer block are provided on one side of the transfer block, and an air tube is connected to the transfer block to provide negative pressure inside the transfer block, and the smooth surface of the adhesive tape is adsorbed on the side of the transfer block where the through holes are provided;

[0018] The transfer block can slide in the vertical direction, in the horizontal direction parallel to the axis of the fixed roller, and in the horizontal direction perpendicular to the axis of the fixed roller.

[0019] The present invention is further configured such that: a baffle located below the sliding roller is fixedly connected to the bottom of the sliding frame, and the film cutter contacts the baffle to cut the packaging film;

[0020] The transfer block presses the adhesive surface of the tape onto the packaging film that is attached to the baffle to achieve adhesion between the tape and the end of the packaging film.

[0021] The present invention is further configured such that when the tape is adsorbed onto the transfer block, the top and bottom of the tape are flush with the top and bottom of the transfer block;

[0022] When the transfer block presses the tape and stretch film onto the baffle, the bottom height of the transfer block is lower than the bottom height of the baffle.

[0023] The present invention is further configured such that: the tape supply assembly includes a support plate, the support plate is horizontally arranged and the length direction of the support plate is parallel to the axis of the fixed roller;

[0024] An unwinding roller, the axis of which is vertical and rotatably connected to the top of a support plate;

[0025] A fixed adsorption block is fixedly connected to the top of the support plate. The fixed adsorption block is in contact with the smooth surface of the unwound tape. The fixed adsorption block adsorbs the tape onto the fixed adsorption block by negative pressure.

[0026] A sliding adsorption block slides on the top of a support plate along the length of the support plate. The sliding adsorption block and the fixed adsorption block are arranged along the length of the support plate. The sliding adsorption block is in contact with the smooth surface of the tape and can adsorb the tape onto the sliding adsorption block through negative pressure. The transfer block can slide between the fixed adsorption block and the sliding adsorption block.

[0027] And a cutter that can cut the tape between the fixed adsorption block and the sliding adsorption block. When the transfer block moves between the fixed adsorption block and the sliding adsorption block, the cutter is located between the transfer block and the fixed adsorption block.

[0028] The invention is further configured to include a limiting block, which contacts the adhesive surface of the tape and is located between the cutter and the fixed adsorption block along the length of the flat plate.

[0029] The present invention is further configured such that: the wrapping mechanism includes a C-frame, the axis of the C-frame is horizontal and arranged along the conveying direction of the tire, and the C-frame rotates around its own axis, and a wrapping roller for mounting the wrapping film is provided on the C-frame.

[0030] The present invention is further configured such that: the supporting conveying mechanism includes a support frame;

[0031] Support rollers, wherein multiple support rollers are arranged along the feeding and discharging direction of the tire, and the support rollers are configured as automatic force rollers;

[0032] A lifting frame, which is capable of moving up and down at the support frame;

[0033] And ball bearings, of which multiple ball bearings are provided and located at the top of the lifting frame, the ball bearings being able to pass upward through two adjacent support rollers under the action of the lifting frame to support the tire.

[0034] In summary, the present invention has the following advantages over the prior art: by setting up the tape supply component and the adhesive application component, the present invention can attach the end of the packaging film to the tire with tape, eliminating the need for manual fixing of the end of the packaging film, making the tire packaging operation more convenient and faster. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0036] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0037] Figure 3 for Figure 1 Enlarged schematic diagram of part B;

[0038] Figure 4 for Figure 1 Enlarged schematic diagram of part C;

[0039] Figure 5 This is a schematic diagram illustrating the film end bonding mechanism in an embodiment.

[0040] In the diagram: 1. Support conveying mechanism; 11. Support frame; 12. Support roller; 13. Lifting frame; 14. Ball bearing; 2. Wrapping and packaging mechanism; 21. C-shaped frame; 22. Wrapping roller; 3. Packaging film cutting assembly; 31. Fixed roller; 32. Sliding roller; 33. Fixed frame; 34. Sliding frame; 35. Film cutter; 4. Adhesive application assembly; 5. Tape supply assembly; 51. Support plate; 52. Fixed suction block; 53. Sliding suction block; 54. Cutter; 55. Unwinding roller; 56. Limiting block; 6. Centering and rotating clamping mechanism; 61. Crossbeam; 62. Moving frame; 63. Positioning roller; 64. Rotating rod; 65. Connecting rod. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0042] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0043] Example: A stretch wrapping machine, see attached document. Figure 1 -Appendix Figure 5The device includes a support conveying mechanism 1, a wrapping and packaging mechanism 2, and a film end bonding mechanism. The support conveying mechanism 1 is used to support and convey the tire; the wrapping and packaging mechanism 2 is used to wrap the packaging film around the tire; and the film end bonding mechanism is used to attach tape to the end of the packaging film on the wrapping and packaging mechanism 2 and fix the tape to the tire.

[0044] During tire packaging, the tire is transported to the wrapping mechanism 2 via a support and transmission mechanism. The wrapping mechanism 2 wraps the tire with a packaging film. After packaging, the support and transmission mechanism transports the tire out. Each time the tire is wrapped, the film end bonding mechanism uses adhesive tape to fix the end of the packaging film to the tire, so that the packaging film can be smoothly wrapped around the tire.

[0045] The film end bonding mechanism includes a packaging film cutting component 3, an adhesive tape supply component 5, and an adhesive application component 4. The packaging film cutting component 3 is used to cut the packaging film; the adhesive tape supply component 5 is used to provide adhesive tape; and the adhesive application component 4 is used to apply the adhesive tape provided by the adhesive tape supply component 5 to the end of the packaging film cut by the packaging film cutting component 3, and to fix the end of the packaging film to the tire by adhesive tape. When the adhesive application component 4 applies the adhesive tape to the end of the packaging film, part of the tape is adhered to the packaging film, and part of the tape extends beyond the end of the packaging film. Then, under the action of the adhesive application component 4, the part of the tape extending beyond the end of the packaging film is driven to adhere to the tire, thereby fixing the end of the packaging film to the tire.

[0046] Specifically, the packaging film cutting assembly 3 includes a fixed roller 31, a sliding roller 32, and a film cutter 35. The axis of the fixed roller 31 is horizontal and parallel to the width direction of the packaging film. The axis of the sliding roller 32 is parallel to the axis of the fixed roller 31, and the fixed roller 31 and the sliding roller 32 are at the same height. The sliding roller 32 and the fixed roller 31 are located on opposite sides of the packaging film. The sliding roller 32 clamps and releases the packaging film by sliding towards and away from the fixed roller 31. Both the sliding roller 32 and the fixed roller 31 are located above the tire being packaged at the winding packaging mechanism 2. The film cutter 35 is located below the fixed roller 31 and slides along the sliding direction of the sliding rod to cut the packaging film clamped by the sliding roller 32 and the fixed roller 31.

[0047] After the tire is packaged, the packaging film is clamped between the sliding roller 32 and the fixed roller 31 by the sliding roller 32. Since the wrapping film is wrapped around the tire, the packaging film between the fixed roller 31 and the tire is in a taut state. The film cutter 35 slides so that the blade contacts the wrapping film and can cut the wrapping film.

[0048] The packaging film cutting assembly 3 also includes a fixed frame 33 and a sliding frame 34. The fixed frame 33 can slide in the direction of approaching and moving away from the wrapping mechanism 2. The fixed roller 31 is disposed on the fixed frame 33 near the end of the packaging film and is located on the side of the fixed frame 33 near the wrapping mechanism 2. The sliding frame 34 and the fixed frame 33 are respectively located on both sides of the packaging film. The sliding roller 32 is disposed on the sliding frame 34 and is located on the side of the sliding frame 34 near the wrapping mechanism 2. The fixed frame 33 is provided with a hydraulic cylinder that drives the sliding frame 34 to approach and move away from the fixed frame 33.

[0049] By sliding the fixing frame 33, when the wrapping mechanism 2 wraps the tire, the fixing frame 33 can move the fixing roller 31 and the sliding roller 32 away from the wrapping mechanism 2, so that the fixing roller 31 and the sliding roller 32 will not obstruct the wrapping process. After the wrapping mechanism 2 finishes wrapping the tire, the fixing frame 33 can move the fixing roller 31 and the sliding roller 32 closer to the wrapping mechanism 2, so that the fixing roller 31 and the sliding roller 32 move to both sides of the wrapping film, making it easier to cut the wrapping film. The film cutter 35 is connected to the bottom of the fixing frame 33 by a cylinder.

[0050] Specifically, the fixed roller 31 is rotatably connected to the fixed frame 33, the sliding roller 32 is rotatably connected to the sliding frame 34, and the fixed frame 33 is fixedly connected to a motor that is driven by the fixed roller 31. When the fixed roller 31 and the rotating roller clamp the packaging film, the rotation of the fixed roller 31 can drive the wrapping film to move downward, so that the adhesive application component 4 can apply tape to the wrapping film.

[0051] Specifically, the adhesive application assembly 4 includes a transfer block, which is hollow inside. Several through holes are provided on one side of the transfer block, penetrating its sidewall. An air pipe is connected to the transfer block to provide negative pressure inside. The smooth surface of the adhesive tape is adsorbed onto the side of the transfer block with the through holes. The transfer block can slide vertically, horizontally parallel to the axis of the fixed roller 31, and horizontally perpendicular to the axis of the fixed roller 31. The negative pressure formed inside the transfer block adsorbs the adhesive tape onto it. Thus, by moving the transfer block, the adhesive tape is adhered to the end of the stretch film. After the tape is adhered to the end of the stretch film, the movement of the moving block pulls the end of the stretch film towards the tire. Then, by moving the transfer block, the tape is adhered to the tire, thus fixing the end of the stretch film to the tire.

[0052] When the wrapping mechanism 2 is wrapping the tire, the moving block moves away from the wrapping mechanism 2 until it reaches the tape supply component 5. The tape supply component 5 provides tape to the moving block, so that the smooth surface of the tape contacts the side of the moving block with the through hole, thereby adsorbing the tape onto the moving block. After the tire is wrapped and transported away, the new tire moves to the wrapping mechanism 2, and then the moving block moves below the fixed roller 31. At this time, the tape on the moving block is located on the side of the moving block closer to the wrapping film. Then the moving block moves closer to the wrapping film, so that the part of the tape near the top adheres to the end of the wrapping film. Then the moving block moves downward, pulling the wrapping film to unwind, so that the end of the wrapping film and the tape are aligned with the tire. Then the moving block moves toward the tire, so that the tape is adhered to the tire, thus fixing the end of the wrapping film on the tire.

[0053] Specifically, a baffle located below the sliding roller 32 is fixedly connected to the bottom of the sliding frame 34. The cutting blade 54 contacts the baffle to cut the packaging film. The transfer block presses the adhesive surface of the tape onto the packaging film that is attached to the baffle to achieve adhesion between the tape and the end of the packaging film. The baffle allows the tape to adhere more tightly to the end of the wrapping film.

[0054] Specifically, when the tape is adsorbed onto the transfer block, the top and bottom of the tape are flush with the top and bottom of the transfer block; when the transfer block presses the tape and the stretch film onto the baffle, the bottom height of the transfer block is lower than the bottom height of the baffle, so that the transfer block can attach the top part of the tape to the end of the stretch film, so that the moving block can attach the part of the tape extending beyond the end of the stretch film to the tire.

[0055] Specifically, the transfer block achieves sliding in the vertical direction, the horizontal direction parallel to the axis of the fixed roller 31, and the horizontal direction perpendicular to the axis of the fixed roller 31 through the coordinated action of multiple cylinders.

[0056] Specifically, the tape supply assembly 5 includes a support plate 51, an unwinding roller 55, a fixed suction block 52, a sliding suction block 53, and a cutter 54. The support plate 51 is horizontally positioned and its length direction is parallel to the axis of the fixed roller 51. The axis of the unwinding roller 55 is vertical and rotatably connected to the top of the support plate 51. The fixed suction block 52 is fixedly connected to the top of the support plate 51 and is in contact with the smooth surface of the unwound tape. The fixed suction block 52 uses negative pressure to attract the tape onto itself. The sliding suction block 53 is positioned on the support plate 51. The top of the plate 51 slides along the length of the support plate 51. The sliding adsorption block 53 and the fixed adsorption block 52 are arranged along the length of the support plate 51. The sliding adsorption block 53 is in contact with the smooth surface of the tape and can adsorb the tape onto the sliding adsorption block 53 by negative pressure. The transfer block can slide between the fixed adsorption block 52 and the sliding adsorption block 53. The cutter 54 can cut the tape between the fixed adsorption block 52 and the sliding adsorption block 53. When the transfer block moves between the fixed adsorption block 52 and the sliding adsorption block 53, the cutter 54 is located between the transfer block and the fixed adsorption block 52.

[0057] During tape supply, the tape roll is sleeved outside the unwinding roller 55. First, it is attracted to the smooth surface of the tape by the sliding adsorption block 53. Then, by sliding the sliding adsorption block 53 away from the fixed adsorption block 52, the tape roll is unwound. Then, the transfer block moves between the sliding adsorption block 53 and the cutter 54 and contacts the smooth surface of the tape. At this time, the transfer block and the fixed adsorption block 52 simultaneously attract the smooth surface of the tape. Then, the tape is cut by the movement of the cutter 54, so that the cut tape is attracted to the transfer block. Then, the movement of the transfer block drives the tape to perform subsequent actions. Then, the sliding adsorption block 53 slides towards the fixed adsorption block 52 and slides between the cutter 54 and the fixed adsorption block 52. The sliding adsorption block 53 attracts the smooth surface of the tape again. Then, the fixed adsorption block 52 releases its adsorption on the tape, and the sliding adsorption block 53 slides again to unwind the tape.

[0058] The sliding adsorption block 53 and the fixed adsorption block 52 are hollow inside. Multiple through holes are provided on one side of the sliding adsorption block 53 and the fixed adsorption block 52 to adsorb the tape when a negative pressure is formed inside the sliding adsorption block 53 and the fixed adsorption block 52. Air tubes are connected to the sliding adsorption block 53 and the fixed adsorption block 52 to provide negative pressure inside the sliding adsorption block 53 and the fixed adsorption block 52.

[0059] Specifically, the tape supply assembly 5 also includes a limiting block 56, which contacts the adhesive surface of the tape and is located between the cutter 54 and the fixed suction block 52 along the length of the plate. When the cutter 54 cuts the tape, the adhesive surface of the tape located between the cutter 54 and the fixed suction block 52 adheres to the limiting block 56 to prevent the tape from winding up and to facilitate the suction of the tape by the sliding suction block 53.

[0060] Specifically, a groove is provided on the support plate 51 along the sliding direction of the sliding adsorption block 53. A lead screw is provided in the groove, and a slider is fixedly connected to the bottom of the sliding adsorption block 53. The slider slides in the groove along the length of the groove and the slider is threadedly engaged with the lead screw. The rotation of the lead screw drives the sliding adsorption block 53 to slide.

[0061] Specifically, the support conveying mechanism 1 includes a support frame 11, support rollers 12, a lifting frame 13, and ball bearings 14; multiple support rollers 12 are arranged along the tire's feed and discharge direction, and the support rollers 12 are configured as automatic force rollers; the lifting frame 13 can move up and down at the support frame 11; multiple ball bearings 14 are arranged at the top of the lifting frame 13, and the ball bearings 14 can pass upward through two adjacent support rollers 12 under the action of the lifting frame 13 to support the tire.

[0062] The wrapping mechanism 2 includes a C-frame 21, the axis of which is horizontal and arranged along the conveying direction of the tire, and the C-frame 21 rotates around its own axis. A wrapping roller 22 for mounting the wrapping film is provided on the C-frame 21.

[0063] This embodiment also includes a centering and rotating clamping mechanism 6, which includes a crossbeam 61 disposed above the support frame 11. Both ends of the crossbeam 61 are fixedly connected to the support frame 11 via vertical rods. The crossbeam 61 is horizontal in its length direction and perpendicular to the tire's feeding / discharging direction. Two movable frames 62 are disposed on the crossbeam 61, sliding along the length direction of the crossbeam 61. Two positioning rollers 63 are rotatably connected to each movable frame 62, and the two positioning rollers 63 on the same movable frame 62 are arranged along the tire's feeding / discharging direction. The support frame 11 is arranged along the tire's feeding / discharging direction in its length direction. To enable the positioning rollers 63 on the two movable frames 62 to simultaneously position the tire, the positioning rollers 63 on the two movable frames 62 are symmetrically arranged relative to the midpoint of the support frame 11's width direction.

[0064] When wrapping the tire with packaging film, the tire needs to be positioned before the packaging film is wrapped around it by the wrapping mechanism 2. When the tire needs to be positioned, the two movable frames 62 slide towards each other, thereby moving the positioning rollers 63 on the two movable frames 62. When all four positioning rollers 63 are pressed against the outside of the tire at the same time, the tire's position is clamped and fixed.

[0065] When wrapping the tire, it needs to be wrapped at multiple locations, so the tire needs to be rotated to adjust the position of the wrapping and packaging mechanism 2 on the tire. Specifically, at least one positioning roller 63 is provided and rotated by a motor.

[0066] Specifically, a rotating rod 64 is rotatably connected to the top of the crossbeam 61. The length of the rotating rod 64 is horizontal, and its midpoint is rotatably connected to the crossbeam 61. The axis of rotation of the rotating rod 64 is vertical. Two connecting rods 65 are hinged to both ends of the rotating rod 64, and the other ends of the two connecting rods 65 are respectively hinged to two movable frames 62. A motor connected to the rotating rod 64 is installed on the crossbeam 61. The motor drives the rotating rod 64 to rotate. When the rotating rod 64 rotates, it can drive the two movable frames 62 to slide towards each other or away from each other through the two connecting rods 65. Through the arrangement of the rotating rod 64 and the connecting rods 65, the two movable frames 62 can be driven to slide equidistantly towards or away from each other simultaneously.

[0067] Specifically, a fixed frame 33 is provided on the support conveying mechanism 1, and the fixed frame 33 is C-shaped. Multiple support rollers 12 pass through the opening of the C-shaped fixed frame 33 along the arrangement direction, and the lifting frame 13 also passes through the C-shaped opening of the fixed frame 33. The wrapping packaging mechanism 2 includes a C-shaped frame 21 that rotates on the fixed frame 33, multiple drive rollers rotatably connected to the fixed frame 33, and a packaging film quick-change assembly detachably connected to the C-shaped frame 21. The packaging film roll is installed on the packaging film quick-change assembly. The multiple drive rollers are arranged around the C-shaped frame 21 and clamp the C-shaped frame 21. By rotating the drive rollers, the C-shaped frame 21 can be driven to rotate around its own axis. During the rotation of the C-shaped frame 21, the packaging film on the packaging film roll is continuously wrapped around the tire to achieve tire packaging.

[0068] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A stretch wrapping machine, characterized in that: Includes a support conveying mechanism (1) for supporting and conveying the tire; A wrapping mechanism (2) for wrapping a packaging film around a tire; And a film end bonding mechanism, which is used to attach tape to the end of the packaging film on the wrapping packaging mechanism (2) and to attach and fix the tape to the tire; The film end bonding mechanism includes a packaging film cutting assembly (3), which is used to cut the packaging film; A tape supply assembly (5) for supplying tape; And the adhesive application assembly (4), which is used to apply the adhesive tape provided by the tape supply assembly (5) to the end of the packaging film cut by the packaging film cutting assembly (3), and to fix the end of the packaging film to the tire by applying the adhesive tape; The packaging film cutting assembly (3) includes a fixed roller (31) whose axis is horizontal and parallel to the width direction of the packaging film; The sliding roller (32) has its axis parallel to the axis of the fixed roller (31) and the fixed roller (31) and the sliding roller (32) have the same height. The sliding roller (32) and the fixed roller (31) are located on both sides of the packaging film. The sliding roller (32) clamps and releases the packaging film by sliding towards and away from the fixed roller (31). And a film cutter (35), which is disposed below the fixed roller (31) and slides along the sliding direction of the sliding rod to cut the packaging film clamped between the sliding roller (32) and the fixed roller (31); The adhesive application assembly (4) includes a transfer block, which is hollow inside. Several through holes penetrating the side wall of the transfer block are provided on one side of the transfer block. An air pipe is connected to the transfer block to provide negative pressure inside the transfer block. The smooth surface of the adhesive tape is adsorbed on the side of the transfer block where the through holes are provided. The transfer block can slide in the vertical direction, in the horizontal direction parallel to the axis of the fixed roller (31), and in the horizontal direction perpendicular to the axis of the fixed roller (31); The tape supply assembly (5) includes a support plate (51), which is horizontally arranged and the length direction of the support plate (51) is parallel to the axis of the fixed roller (31). An unwinding roller (55) has its axis vertical and is rotatably connected to the top of a support plate (51); A fixed adsorption block (52) is fixedly connected to the top of the support plate (51). The fixed adsorption block (52) is in contact with the smooth surface of the unwound tape. The fixed adsorption block (52) adsorbs the tape onto the fixed adsorption block (52) by negative pressure. A sliding adsorption block (53) slides on the top of the support plate (51) along the length of the support plate (51). The sliding adsorption block (53) and the fixed adsorption block (52) are arranged along the length of the support plate (51). The sliding adsorption block (53) is in contact with the smooth surface of the tape and can adsorb the tape onto the sliding adsorption block (53) by negative pressure. The transfer block can slide between the fixed adsorption block (52) and the sliding adsorption block (53). And a cutter (54) that can cut the tape between the fixed adsorption block (52) and the sliding adsorption block (53), with the cutter (54) positioned between the transfer block and the fixed adsorption block (52) when the transfer block moves between the fixed adsorption block (52) and the sliding adsorption block (53).

2. The stretch wrapping machine according to claim 1, characterized in that: The packaging film cutting assembly (3) also includes a fixing frame (33) which is slidable in the direction of approaching and away from the wrapping mechanism (2), and the fixing roller (31) is disposed at one end of the fixing frame (33) near the packaging film and on the side of the fixing frame (33) near the wrapping mechanism (2); And a sliding frame (34), the sliding frame (34) and the fixed frame (33) are respectively located on both sides of the packaging film, the sliding roller (32) is set on the sliding frame (34) and located on the side of the sliding frame (34) closer to the wrapping packaging mechanism (2), and the fixed frame (33) is provided with a hydraulic cylinder that drives the sliding frame (34) to move closer to and away from the fixed frame (33).

3. The stretch wrapping machine according to claim 2, characterized in that: The bottom of the sliding frame (34) is fixedly connected to a baffle located below the sliding roller (32), and the film cutter (35) contacts the baffle to cut the packaging film; The transfer block presses the adhesive surface of the tape onto the packaging film that is attached to the baffle to achieve adhesion between the tape and the end of the packaging film.

4. The stretch wrapping machine according to claim 3, characterized in that: When the tape is adsorbed onto the transfer block, the top and bottom of the tape are flush with the top and bottom of the transfer block; When the transfer block presses the tape and stretch film onto the baffle, the bottom height of the transfer block is lower than the bottom height of the baffle.

5. The stretch wrapping machine according to claim 4, characterized in that: It also includes a limiting block (56), which contacts the adhesive surface of the tape and is located between the cutter (54) and the fixed adsorption block (52) along the length of the plate.

6. The stretch wrapping machine according to claim 1, characterized in that: The wrapping mechanism (2) includes a C-frame (21) with its axis horizontal and arranged along the conveying direction of the tire, and the C-frame (21) rotates around its own axis. A wrapping roller (22) for mounting the wrapping film is provided on the C-frame (21).

7. The stretch wrapping machine according to claim 1, characterized in that: The support conveying mechanism (1) includes a support frame (11); Support roller (12), wherein multiple support rollers (12) are provided and arranged along the feeding and discharging direction of the tire, and the support rollers (12) are configured as automatic force rollers; A lifting frame (13) is capable of moving up and down at the support frame (11); And ball bearings (14), a plurality of which are provided and located on the top of the lifting frame (13), wherein the ball bearings (14) are able to pass upward through two adjacent support rollers (12) under the action of the lifting frame (13) to support the tire.

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