Winding film winding device capable of improving flatness

Abstract

The winding film winding device comprises a base, one side of the base is connected with a gear shaft through a driving shaft at the output end of a servo motor, the upper portion of the gear shaft is meshed with a driven wheel, a hollow shaft is installed on the inner side of the driven wheel, the outer side of the hollow shaft is connected with a winding roller, and the winding roller is connected with a winding roller. A support, a first supporting plate and a second supporting plate are installed on the upper portion of the base, a limiting plate is connected to one side of the support, a fourth telescopic sleeve rod is installed on one side of the upper portion of the support, a fourth spring is arranged on the inner side of the fourth telescopic sleeve rod, and a fifth telescopic sleeve rod is connected to the end of the fourth telescopic sleeve rod. Through the detection mechanism and the adjusting mechanism, the problems of wrinkles and unevenness in the film winding process are effectively solved, the flatness of the film is remarkably improved, the product quality and appearance are improved, the production efficiency is improved, and the rejection rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of film winding, and in particular to a winding device for a wrapping film with improved flatness. Background Art

[0002] In the film production process, winding is a crucial link, which directly affects the quality and appearance of the final product. As a thinner product, Jianji 8F film is prone to wrinkles and uneven ends during the winding process. This is mainly attributed to the following aspects: During the film winding process, under the action of tension, it is easy to wrinkle during the pulling process. If it is directly wound, the wrinkled parts are easy to produce unevenness during the multi-layer winding process. The present invention improves the pressure roller and cooperates with the wind knife to flatten the film before compacting it. After multiple studies and actual operations, the wrinkled film is flattened, and then compacted after flattening, which will greatly improve the hidden dangers of unevenness and wrinkles during the film winding process. Therefore, it is necessary to provide a winding film winding device with improved flatness to solve the above technical problems. Summary of the invention

[0003] The object of the present invention is to provide a winding device for wrapping film with improved flatness, so as to solve the problem raised in the above background technology that in the process of conventional film winding, under the action of tension, wrinkles are easily generated during the pulling process. If the film is directly wound, the wrinkled parts are prone to unevenness during the multi-layer winding process. The technical solution of the present invention is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a winding device for improving flatness of a winding film, comprising a base, one side of the base is connected to a gear shaft through a driving shaft at the output end of a servo motor, and a driven wheel is meshed above the gear shaft, and a hollow shaft is installed inside the driven wheel, and a winding roller is connected to the outside of the hollow shaft, a bracket, a first support plate and a second support plate are respectively installed above the base, and a limiting plate is connected to one side of the bracket, a fourth telescopic sleeve is installed on one side above the bracket, and a fourth spring is arranged inside the fourth telescopic sleeve, and a fifth telescopic sleeve is connected to the end of the fourth telescopic sleeve, characterized in that it also includes: An adjusting mechanism, wherein the adjusting mechanism is installed between the fifth telescopic sleeve rod and the winding roller; A detection mechanism is detachably connected to both sides of the radius of the winding roller.

[0005] In a further embodiment, a sliding groove is provided on the inner side of the limiting plate, and is in a one-to-one correspondence with the limiting plates on both sides.

[0006] In a further embodiment, the adjustment mechanism includes a sliding rod slidably connected to the inner side of the sliding groove, and the two ends of the sliding rod are respectively rotatably connected to sliders, a first sleeve is sleeved on the outer side of the slider, and an air outlet is installed on one side of the first sleeve, an air inlet pipe is connected above the air outlet, and the width of the air inlet pipe is equal to the width of the air outlet, and the wind blown out of the air outlet is designed to be tangent to the film pulled by the winding roller.

[0007] In a further embodiment, the detection mechanism includes a roller clamped on the inner side of the hollow shaft, and the two ends of the roller are movably connected with a piston rod, a first spring is provided on one side of the piston rod, and a second sleeve is provided on the outer side of the piston rod and the first spring, one end of the second sleeve is connected to the first oil pipe, and the other end of the second sleeve is provided with a connecting block, and a pressure roller is movably connected to the connecting block on the opposite side, and the upper end of the connecting block is movably hinged to one side of the air outlet.

[0008] In a further embodiment, the pressure roller contacts the outer side of the winding roller under the elastic expansion and contraction action of the first spring.

[0009] In a further embodiment, it also includes a first telescopic sleeve rod, which is arranged directly below the winding roller, and the upper end of the first telescopic sleeve rod contacts the outer side of the winding roller, a second spring is also installed on the inner side of the first telescopic sleeve rod, and a second oil pipe is connected to the lower side of the first telescopic sleeve rod.

[0010] In a further embodiment, a second telescopic sleeve rod is further included, wherein the second telescopic sleeve rod is symmetrically installed between the two unwinding rollers, and the bottom of the second telescopic sleeve rod is installed and connected to the top of the inner side of the base.

[0011] In a further embodiment, a third telescopic sleeve is installed on the upper inner side of the second support plate, and a tension roller is movably connected to the end of the third telescopic sleeve, and a third spring is arranged inside the third telescopic sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a detection mechanism and an adjustment mechanism. The film is released from the unwinding roller, blown flat by a wind knife, and enters the pressure roller. The pressure roller compacts the film and winds it around the winding roller. As the radius of the winding roller increases, the position of the wind knife is automatically adjusted under the action of the detection mechanism and the adjustment mechanism, and it always keeps tangent to the film. The pressure roller uses adaptive expansion and contraction to compact the flattened film. Compared with the existing technology, the wrinkle and unevenness problems occurring during the film winding process are effectively solved, the flatness of the film is significantly improved, the product quality and appearance are improved, the production efficiency is improved, and the scrap rate is reduced. The present invention is provided with a third telescopic sleeve, a tension roller and a third spring. The tension roller contacts the film wound on the winding roller and can sense the tension change of the film. The tension roller is connected to the spring. The expansion and contraction of the spring will change according to the tension change of the film. The tension adjustment is mainly based on the expansion and contraction degree of the spring, and the upper and lower positions of the tension roller are automatically adjusted to change the tension of the film. Compared with the existing technology, the film is ensured to be in an appropriate tension state at all times during the winding process through adaptive adjustment to avoid excessive stretching or relaxation. Appropriate tension helps to maintain the flatness of the film and avoid wrinkles and unevenness. At the same time, tension control helps to ensure the thickness uniformity and surface quality of the film, thereby improving product quality. The tension adjustment process is automated and does not require manual intervention. Automatic adjustment can improve production efficiency and reduce labor costs. The present invention utilizes the effect of the air outlet of the wind knife being tangent to the film. The air outlet of the wind knife remains tangent to the film on the winding roller, and can blow the wrinkled film flat. As the radius of the winding roller increases, the position of the air outlet is automatically adjusted to always remain tangent to the film. The automatic adjustment of the air outlet position is achieved through a detection mechanism and an adjustment mechanism to ensure its accuracy and stability. Compared with the existing technology, the best blowing effect is ensured, and the flatness of the film is effectively improved by flattening the wrinkles, thereby improving the product quality. The present invention is provided with a first telescopic sleeve rod, a second spring, a second oil pipe and a second telescopic sleeve rod. As the radius of the winding roller increases, the position of the unwinding roller will be automatically adjusted by the first telescopic sleeve rod, the second spring, the second oil pipe and the second telescopic sleeve rod, and always keep it level with the winding roller. Compared with the existing technology, the problem of skewing and twisting of the film during the tension adjustment process, which leads to the generation of wrinkles, is avoided, the flatness of the film is ensured, the product quality is improved, the change of the radius of the winding roller is adapted, and the film winding quality is ensured to be always stable without manual intervention, thereby improving production efficiency, ensuring the film winding quality and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of a winding device for wrapping film with improved flatness provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the TT cross-section structure is shown; Figure 3 for Figure 1 The enlarged structural diagram of point A shown; Figure 4 for Figure 1 The schematic diagram of the installation structure of the drive shaft and the roller is shown; Figure 5 for Figure 2 The enlarged structural diagram of point B shown; Figure 6 for Figure 4 The enlarged structural schematic diagram of point C is shown.

[0014] In the figure: 1, base; 101, first support plate; 2, gear shaft; 3, driven wheel; 4, hollow shaft; 5, winding roller; 6, bracket; 7, limit plate; 8, slide groove; 9, adjustment mechanism; 901, slide bar; 902, slider; 903, first sleeve; 904, air outlet; 905, air inlet pipe; 10, detection mechanism; 1001, roller; 1002, piston rod; 1002a, first spring; 1003, The second sleeve; 1003a, the first oil pipe; 1004, the connecting block; 1005, the pressure roller; 11, the first telescopic sleeve; 1101, the second spring; 1102, the second oil pipe; 12, the second telescopic sleeve; 13, the unwinding roller; 14, the second support plate; 15, the third telescopic sleeve; 1501, the tension roller; 16, the third spring; 17, the fourth telescopic sleeve; 1701, the fourth spring; 18, the fifth telescopic sleeve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-6 An embodiment of the present invention is as follows: a winding device for improving flatness of a winding film comprises a base 1, one side of the base 1 is connected with a gear shaft 2 through a driving shaft at the output end of a servo motor, and a driven wheel 3 is meshed above the gear shaft 2, and a hollow shaft 4 is installed on the inner side of the driven wheel 3, and a winding roller 5 is connected to the outer side of the hollow shaft 4, a bracket 6, a first support plate 101 and a second support plate 14 are installed above the base 1 respectively, and a limiting plate 7 is connected to one side of the bracket 6, a fourth telescopic sleeve rod 17 is installed on one side above the bracket 6, and a fourth spring 1701 is arranged on the inner side of the fourth telescopic sleeve rod 17, and a fifth telescopic sleeve rod 18 is connected to the end of the fourth telescopic sleeve rod 17, and also comprises: an adjusting mechanism 9, the adjusting mechanism 9 is installed between the fifth telescopic sleeve rod 18 and the winding roller 5; a detecting mechanism 10, and the detecting mechanism 10 is detachably connected to both sides of the radius of the winding roller 5.

[0017] Example 1 Please refer to Figure 1 A third telescopic sleeve rod 15 is installed on the upper inner side of the second support plate 14, and a tension roller 1501 is movably connected to the end of the third telescopic sleeve rod 15, and a third spring 16 is arranged inside the third telescopic sleeve rod 15; When in use, the servo motors on the back of the unwinding roller 13 and the winding roller 5 are started to drive the unwinding roller 13 to rotate, and the winding roller 5 rotates by driving the gear shaft 2 and the driven wheel 3 to rotate through the servo motor, thereby driving the hollow shaft 4 and the winding roller 5 to rotate at the same time, and the film released by the unwinding roller 13 is wound by the winding roller 5. A second support plate 14, a third telescopic sleeve rod 15, a tension roller 1501 and a third spring 16 are provided, and the tension roller 1501 is pressed against the film during the winding process, thereby playing a role in adaptively adjusting the tension of the film during the winding process.

[0018] Example 2 Please refer to Figure 1-2 and Figure 5 , which is different from the embodiment 1 in that: a slide groove 8 is provided on the inner side of the limit plate 7, and is in a one-to-one correspondence with the limit plates 7 on both sides, the adjustment mechanism 9 includes a slide rod 901 slidably connected to the inner side of the slide groove 8, and the two ends of the slide rod 901 are rotatably connected to sliders 902, a first sleeve 903 is sleeved on the outer side of the slider 902, and an air outlet 904 is installed on one side of the first sleeve 903, an air inlet pipe 905 is connected above the air outlet 904, and the width of the air inlet pipe 905 is equal to the width of the air outlet 904, and the wind blown out of the air outlet 904 is designed to be tangent to the film pulled by the winding roller 5; When the film is being wound by the winding roller 5, under the action of tension and pulling, the film is very likely to be pulled and wrinkled in the longitudinal direction under the action of its own elastic force, which causes the film wound by the winding roller 5 to become uneven. To solve this problem, when the winding roller 5 is winding the film, the blower is started, and the wind is introduced into the air outlet 904 through the air inlet pipe 905, so that the wind is blown out from the air outlet 904. The air outlet 904 blows tangentially to the film pulled on the winding roller 5, and the air outlet 904 is in the shape of a wind knife, so that the pulled and wrinkled film can be flattened, and then the flattened film is compacted by the pressure roller 1005 and wound around the outside of the winding roller 5. As the radius of the winding roller 5 gradually increases, at this time, in order to make the air outlet 904 and the outside of the winding roller 5 continue to remain tangential, ensure that the wind blown out of the air outlet 904 can flatten the traction mold on one side of the winding roller 5, the solution is as follows.

[0019] Example 3 Please refer to Figure 4-6, which is different from Example 2 in that: the detection mechanism 10 includes a roller 1001 clamped on the inner side of the hollow shaft 4, and the two ends of the roller 1001 are movably connected with a piston rod 1002, a first spring 1002a is provided on one side of the piston rod 1002, and a second sleeve 1003 is sleeved on the outer side of the piston rod 1002 and the first spring 1002a, one end of the second sleeve 1003 is connected with a first oil pipe 1003a, and a connecting block 1004 is provided on the other end of the second sleeve 1003, and a pressure roller 1005 is movably connected to the connecting block 1004 on the opposite side, the upper end of the connecting block 1004 is movably hinged with one side of the air outlet 904, and the pressure roller 1005 is in contact with the outer side of the winding roller 5 under the elastic expansion and contraction action of the first spring 1002a; Since the edge of the pressure roller 1005 is in close contact with the outer side of the winding roller 5, and the outer side of the pressure roller 1005 is in close contact with the inner side of the hollow shaft 4, in the initial stage, the radius of the roller 1001 and the pressure roller 1005 is equal to the radius of the connecting block 1004 and the sliding bar 901. Therefore, when the radius of the winding roller 5 gradually increases, its outer side will push the pressure roller 1005, so that the pressure roller 1005 drives the second sleeve 1003 to stretch under the elasticity of the first spring 1002a, so that the piston rod 1002 can squeeze the oil inside the second sleeve 1003 through the first oil pipe 1003a to the inner side of the first sleeve 903, and then push the sliding block 902 to move to one side, so as to ensure that when the winding roller 5 is winding the film, the radius of the roller 1001 and the pressure roller 1005 is equal to the radius of the connecting block 1004 and the sliding bar 901. When the radius of the connecting block 1004 and the sliding rod 901 continues to increase, the sliding rod 901 drives the slider 902 to slide to the right under the limiting action of the sliding groove 8. In this state, the first sleeve 903 will also tilt to the right and surround the upper end of the connecting block 1004. Under the cooperation of the fifth telescopic sleeve 18, the fourth telescopic sleeve 17 and the fourth spring 1701, it gradually turns downward, thereby driving the air outlet 904 to turn in the same direction, thereby achieving that when the radius of the winding roller 5 gradually increases, the air outlet 904 can be effectively and adaptively adjusted to always maintain a tangent state with the film pulled by the winding roller 5, thereby ensuring that the wind knife blown out of the air outlet 904 can blow the wrinkled film flat.

[0020] Example 4 Please refer to Figure 1 , which is different from Example 3 in that: it also includes a first telescopic sleeve rod 11, which is arranged directly below the winding roller 5, and the upper end of the first telescopic sleeve rod 11 contacts the outer side of the winding roller 5, and a second spring 1101 is also installed on the inner side of the first telescopic sleeve rod 11, and a second oil pipe 1102 is connected to one side below the first telescopic sleeve rod 11, and also includes a second telescopic sleeve rod 12, which is symmetrically installed between the two unwinding rollers 13, and the bottom of the second telescopic sleeve rod 12 is installed and connected to the inner top of the base 1; As the radius of the unwinding roller 13 becomes smaller and smaller during the unwinding process, in order to ensure that the unwinding roller 13 and the top of the winding roller 5 are always kept horizontal, when the radius of the winding roller 5 gradually increases, the first telescopic sleeve 11 will be squeezed downward in cooperation with the second spring 1101, and the oil inside the first telescopic sleeve 11 will be squeezed to the inside of the second telescopic sleeve 12 in cooperation with the second oil pipe 1102, so that the second telescopic sleeve 12 rises according to the distance that the winding roller 5 squeezes the first telescopic sleeve 11, thereby ensuring that the top of the unwinding roller 13 and the top of the winding roller 5 are always kept horizontal.

[0021] Working principle: Figure 1-2 and Figure 5 As shown, when in use, the servo motors on the back of the unwinding roller 13 and the winding roller 5 are started to drive the unwinding roller 13 to rotate, and the winding roller 5 rotates when the servo motor drives the gear shaft 2 and the driven wheel 3 to rotate, and at the same time drives the hollow shaft 4 and the winding roller 5 to rotate, and the film released by the unwinding roller 13 is wound by the winding roller 5; A second support plate 14, a third telescopic sleeve rod 15, a tension roller 1501 and a third spring 16 are provided, and the tension roller 1501 is pressed against the film during the winding process, thereby playing a role in adaptively adjusting the tension of the film during the winding process; like Figure 1-4 and Figure 6 As shown, during the process of winding the film by the winding roller 5, under the action of tension pulling, the film is very likely to be pulled and wrinkled in the longitudinal direction under the action of its own elastic force, that is, the film wound by the winding roller 5 becomes uneven. To solve this problem, when the winding roller 5 is winding the film, the blower is started, and the wind is introduced into the air outlet 904 through the air inlet pipe 905, so that the wind is blown out from the air outlet 904. The air outlet 904 blows tangentially to the film pulled on the winding roller 5, and the air outlet 904 is in the shape of a wind knife, so the pulled and wrinkled film can be flattened, and then the flattened film is compacted by the pressure roller 1005 and wound around the outside of the winding roller 5. As the radius of the winding roller 5 gradually increases, at this time, in order to make the air outlet 904 and the outside of the winding roller 5 continuously tangential, it is ensured that the wind blown out of the air outlet 904 can flatten the traction mold on one side of the winding roller 5. The solution is as follows: like Figure 4-6As shown, since the edge of the pressure roller 1005 is closely attached to the outer side of the winding roller 5, and the outer side of the pressure roller 1005 is in contact with the inner side of the hollow shaft 4, in the initial stage, the radius of the roller 1001 and the pressure roller 1005 is equal to the radius of the connecting block 1004 and the slide bar 901. Therefore, when the radius of the winding roller 5 gradually increases, its outer side will push the pressure roller 1005, so that the pressure roller 1005 drives the second sleeve 1003 to stretch under the elasticity of the first spring 1002a, so that the piston rod 1002 can squeeze the oil inside the second sleeve 1003 to the inner side of the first sleeve 903 through the first oil pipe 1003a, and then push the slide bar 902 to move to one side, so as to ensure that when the winding roller 5 is winding the film, the radius of the roller 1001 and the pressure roller 1005 is equal to the radius of the connecting block 1004 and the slide bar 901. When the radius of the connecting block 1004 and the sliding rod 901 continues to increase, the sliding rod 901 drives the sliding block 902 to slide to the right under the limiting action of the sliding groove 8. In this state, the first sleeve 903 will also tilt to the right and gradually turn downward around the upper end of the connecting block 1004 under the cooperation of the fifth telescopic sleeve rod 18, the fourth telescopic sleeve rod 17 and the fourth spring 1701, thereby driving the air outlet 904 to turn in the same direction, thereby achieving that when the radius of the winding roller 5 gradually increases, the air outlet 904 can be effectively and adaptively adjusted to always keep in a tangent state with the film pulled by the winding roller 5, thereby ensuring that the wind knife blown out of the air outlet 904 can blow the wrinkled film flat; like Figure 1 As shown, since the radius of the unwinding roller 13 becomes smaller and smaller during the unwinding process, in order to ensure that the unwinding roller 13 and the top of the winding roller 5 are always kept horizontal, when the radius of the winding roller 5 gradually increases, the first telescopic sleeve 11 will be squeezed downward in cooperation with the second spring 1101, and the oil inside the first telescopic sleeve 11 will be squeezed to the inside of the second telescopic sleeve 12 in cooperation with the second oil pipe 1102, so that the second telescopic sleeve 12 rises according to the distance that the winding roller 5 squeezes the first telescopic sleeve 11, thereby ensuring that the top of the unwinding roller 13 and the top of the winding roller 5 are always kept horizontal, thereby completing a series of tasks.

[0022] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A winding device for improving flatness of a wrapping film, comprising a base (1), one side of the base (1) being connected to a gear shaft (2) via a drive shaft at the output end of a servo motor, a driven wheel (3) being meshed above the gear shaft (2), a hollow shaft (4) being installed inside the driven wheel (3), a winding roller (5) being connected outside the hollow shaft (4), a bracket (6), a first support plate (101) and a second support plate (14) being installed above the base (1), a limiting plate (7) being connected to one side of the bracket (6), a fourth telescopic sleeve (17) being installed above one side of the bracket (6), a fourth spring (1701) being provided inside the fourth telescopic sleeve (17), a fifth telescopic sleeve (18) being connected to the end of the fourth telescopic sleeve (17), and characterized in that: include: An adjusting mechanism (9), wherein the adjusting mechanism (9) is installed between the fifth telescopic sleeve rod (18) and the winding roller (5); A detection mechanism (10), wherein the detection mechanism (10) is detachably connected to both sides of the radius of the winding roller (5).

2. A wrapping film winding device for improving flatness according to claim 1, characterized in that: A sliding groove (8) is provided on the inner side of the limiting plate (7) and is in a one-to-one correspondence with the limiting plates (7) on both sides.

3. A wrapping film winding device for improving flatness according to claim 2, characterized in that: The adjustment mechanism (9) comprises a sliding rod (901) slidably connected to the inner side of the sliding groove (8), and the two ends of the sliding rod (901) are rotatably connected to sliders (902), the outer side of the slider (902) is sleeved with a first sleeve (903), and one side of the first sleeve (903) is equipped with an air outlet (904), the upper side of the air outlet (904) is connected to an air inlet pipe (905), and the width of the air inlet pipe (905) is equal to the width of the air outlet (904), and the air blown out of the air outlet (904) is designed to be tangent to the film pulled by the winding roller (5).

4. A winding device for improving flatness of a wrapping film according to claim 3, characterized in that: The detection mechanism (10) comprises a roller (1001) clamped on the inner side of the hollow shaft (4), and piston rods (1002) are movably connected to both ends of the roller (1001), a first spring (1002a) is provided on one side of the piston rod (1002), and a second sleeve (1003) is sleeved on the outer sides of the piston rod (1002) and the first spring (1002a), one end of the second sleeve (1003) is connected to a first oil pipe (1003a), and a connecting block (1004) is provided on the other end of the second sleeve (1003), and a pressure roller (1005) is movably connected to the connecting block (1004) on the opposite side, and the upper end of the connecting block (1004) is movably hinged to one side of the air outlet (904).

5. A wrapping film winding device for improving flatness according to claim 4, characterized in that: The pressing roller (1005) contacts the outside of the winding roller (5) under the elastic expansion and contraction action of the first spring (1002a).

6. The winding device for improving flatness of a wrapping film according to claim 1, characterized in that: It also comprises a first telescopic sleeve rod (11), the first telescopic sleeve rod (11) being arranged directly below the winding roller (5), and the upper end of the first telescopic sleeve rod (11) being in contact with the outer side of the winding roller (5), a second spring (1101) being installed on the inner side of the first telescopic sleeve rod (11), and a second oil pipe (1102) being connected to the lower side of the first telescopic sleeve rod (11).

7. The winding device for improving flatness of a wrapping film according to claim 1, characterized in that: It also comprises a second telescopic sleeve rod (12), wherein the second telescopic sleeve rod (12) is symmetrically mounted between the two unwinding rollers (13), and the bottom of the second telescopic sleeve rod (12) is mounted and connected to the top of the inner side of the base (1).

8. The winding device for improving flatness of a wrapping film according to claim 1, characterized in that: A third telescopic sleeve rod (15) is installed on the upper inner side of the second support plate (14), and a tension roller (1501) is movably connected to the end of the third telescopic sleeve rod (15), and a third spring (16) is arranged on the inner side of the third telescopic sleeve rod (15).

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