Film ring wrapping forming method and device

Abstract

The invention relates to a film ring wrapping forming method and device. The thin film comprises a bottom face thin film and a side face thin film, and the bottom face thin film and the side face thin film are connected; when the first driving salient point wheel assembly is in a rotating state, the cylindrical surface drags the side surface film to advance, and the end surface outer ring drives the second driving salient point wheel assembly to rotate; when the second driving salient point wheel assembly is in a rotating state, a cylindrical surface pulls a contact part of the side film to be lifted and tightened, and the contact part is a part, connected with the bottom film, of the side film; and the bottom surface film and the side surface film cooperatively and annularly coat the film object to obtain a formed cable. A traction effect is achieved on the side film at the position, connected with the bottom film, of the film, so that the side film at the position is pulled and tightened relative to the bottom film; and for the side film, the traction direction which is the same as the advancing direction of the film-coated object is also realized, so that the side film is matched with the bottom film, and double tightening in the surrounding direction and the traction direction is realized for the film-coated object.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of thin film ring wrapping forming of cable, in particular to a thin film ring wrapping forming method and device. BACKGROUND

[0002] The thin film ring wrapping forming technology is applied to the preparation of cable. As an illustration, a formed cable 400 is shown in FIG. 1, in which a covered object 300 such as a multi-core cable is wrapped by a thin film 200 in a ring shape. Figure 1

[0003] However, due to the small thickness and large width of the thin film, the thickness is usually in nanometer level, and the width is in millimeter level, so the width-to-thickness ratio is more than 100 times or even hundreds of times. Therefore, the traditional U-shaped groove thin film forming device is prone to uneven force during the ring wrapping forming process of the cable, resulting in stacking deformation. On the one hand, it is not conducive to ring wrapping forming and is prone to defects; on the other hand, the deformation will cause the appearance to be not smooth, such as wrinkling, and the like. Especially for the thin film wrapping of signal lines, when the deformation is serious, the thin film wrapping is not flat, which will affect the signal transmission. SUMMARY

[0004] Therefore, it is necessary to provide a thin film ring wrapping forming method and device.

[0005] One embodiment of the present application is a thin film ring wrapping forming method, which comprises the following steps:

[0006] The thin film and the covered object are pulled respectively, wherein the thin film comprises a bottom surface thin film and a side surface thin film connected to each other;

[0007] A first driving convex point wheel assembly drives the side surface thin film to move forward in a cylindrical surface in a rotating state, and drives a second driving convex point wheel assembly to rotate in an end surface outer ring;

[0008] The second driving convex point wheel assembly drives the contact part of the side surface thin film to be pulled and tightened in a cylindrical surface in a rotating state, wherein the contact part is the part of the side surface thin film connected to the bottom surface thin film;

[0009] The bottom surface thin film and the side surface thin film cooperatively wrap the covered object to obtain a formed cable.

[0010] ​The thin film ring forming method, through the design of the first driving protrusion wheel assembly and the second driving protrusion wheel assembly, cooperates with the thin film in the traction state and the coated object, on the one hand, the side film at the position of the connecting bottom surface of the thin film is pulled and tightened relative to the bottom surface of the thin film; on the other hand, the same traction direction as the advancing direction of the side film is realized, so that the side film cooperates with the bottom surface of the thin film to realize the double tightening of the ring wrapping direction and the traction direction of the coated object; on the other hand, due to the tightening of the side film cooperated with the bottom surface of the thin film, the thin film is uniformly stressed in the ring forming process, so that the shape is optimized in the ring wrapping process, thereby avoiding the problem of stacking in the advancing process caused by the incomplete pulling of the thin film; on the other hand, since the problem of thin film ring deformation is overcome, the appearance of the bad phenomenon is greatly reduced, and the yield is improved, thereby ensuring the signal transmission effect of the formed cable.

[0011] In some embodiments, the speed ratio of the first driving protrusion wheel assembly and the second driving protrusion wheel assembly is set according to the moving speed of the bottom surface of the thin film and the side film.

[0012] In some embodiments, the engagement ratio of the first protrusion wheel group of the first driving protrusion wheel assembly and the second protrusion wheel group of the second driving protrusion wheel assembly is set to adjust the speed ratio of the first driving protrusion wheel assembly and the second driving protrusion wheel assembly.

[0013] In some embodiments, the number of protrusions or the arc ratio of the first protrusion wheel group and the second protrusion wheel group is set as the engagement ratio.

[0014] In some embodiments, the first driving protrusion wheel assembly, in the rotating state, pulls the side film to advance with the cylindrical surface of the first protrusion wheel group, and rotates the second driving protrusion wheel assembly with the end surface outer ring of the first protrusion wheel group.

[0015] The second driving protrusion wheel assembly, in the rotating state, pulls and tightens the contact part of the side film with the cylindrical surface of the second protrusion wheel group.

[0016] In some embodiments, a thin film ring forming device includes a first driving protrusion wheel assembly, a second driving protrusion wheel assembly, a former, and a base.

[0017] The first driving protrusion wheel assembly and the second driving protrusion wheel assembly are respectively arranged on the base, the base is arranged on the former, and the former is configured to input the thin film and the coated object.

[0018] The cylindrical surface of the first driving protrusion wheel assembly is configured to contact the side film of the film, and the end surface outer ring is matched with the second driving protrusion wheel assembly;

[0019] The cylindrical surface of the second driving protrusion wheel assembly is configured to contact the contact part of the side film, wherein the contact part is the part of the side film connecting the bottom film of the film (200);

[0020] In the rotating state, the first driving protrusion wheel assembly drags the side film to advance with the cylindrical surface, and drives the second driving protrusion wheel assembly to rotate with the end surface outer ring, and in the rotating state, the second driving protrusion wheel assembly drags the contact part of the side film to pull and tighten, so that the bottom film and the side film cooperatively wrap the object to be coated, and a shaped cable is obtained.

[0021] In some embodiments, the first driving protrusion wheel assembly comprises a first protrusion wheel group, two first driving shafts and two first bearings;

[0022] The first protrusion wheel group comprises a first protrusion wheel and a second protrusion wheel, and the first protrusion wheel and the second protrusion wheel are respectively arranged on a first driving shaft through a first bearing, and two first driving shafts are respectively arranged on two first assembly positions of the base;

[0023] The second driving protrusion wheel assembly comprises a second driving shaft, a second bearing and a second protrusion wheel group;

[0024] The second protrusion wheel group is arranged on the second driving shaft through the second bearing, and the second driving shaft is arranged on the second assembly position of the base;

[0025] The cylindrical surface of the first protrusion wheel and the second protrusion wheel is respectively configured to contact the side film on both sides of the film, and the end surface outer ring of the first protrusion wheel and the second protrusion wheel is respectively matched with the second protrusion wheel group;

[0026] The cylindrical surface of the second protrusion wheel group is configured to contact the contact part of the side film on both sides of the bottom film.

[0027] In some embodiments, the second protrusion wheel group comprises a third protrusion wheel and a fourth protrusion wheel;

[0028] The third protrusion wheel and the fourth protrusion wheel are respectively arranged on a second driving shaft through a second bearing, and two second driving shafts are respectively arranged on two second assembly positions of the base;

[0029] The end face outer ring of the first convex wheel is matched with the third convex wheel, and the end face outer ring of the second convex wheel is matched with the fourth convex wheel.

[0030] The cylindrical surface of the third convex wheel and the cylindrical surface of the fourth convex wheel are respectively configured to contact the contact part of the side surface film on the one side of the bottom surface film.

[0031] In some embodiments, the first convex wheel and the second convex wheel in the first convex wheel set have opposite rotating directions, so that the rotating direction of the first cylindrical surface of the first convex wheel is opposite to the rotating direction of the second cylindrical surface of the second convex wheel.

[0032] In the second convex wheel set, the third convex wheel and the fourth convex wheel have opposite rotating directions, so that the rotating direction of the third cylindrical surface of the third convex wheel is opposite to the rotating direction of the fourth cylindrical surface of the fourth convex wheel.

[0033] In some embodiments, the cylindrical surface of the first driving convex wheel assembly is provided with first convex points or the first driving convex wheel assembly has a cylindrical surface formed by the first convex points, and the cylindrical surface of the second driving convex wheel assembly is provided with second convex points or the second driving convex wheel assembly has a cylindrical surface formed by the second convex points.

[0034] The first driving convex wheel assembly is matched with the second convex points of the second driving convex wheel assembly through the first convex points of the end face outer ring of the first driving convex wheel assembly. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Figure 1 A cross-sectional view of a formed cable obtained by using a film ring forming technology.

[0037] Figure 2 A structure schematic view of a first embodiment of the film ring forming device described in the present application.

[0038] Figure 3 A structure schematic view of a second embodiment of the film ring forming device described in the present application. Figure 2 An application schematic view of the embodiment shown.

[0039] Figure 4 A structure schematic view of a third embodiment of the film ring forming device described in the present application. Figure 3 A partial structure schematic view of the embodiment shown.

[0040] Figure 5 A partial structural schematic view of the embodiment shown in FIG. 1. Figure 4

[0041] Figure 6 A schematic view of another direction of the embodiment shown in FIG. 1. Figure 3

[0042] Figure 7 A partial structural schematic view of another direction of the embodiment shown in FIG. 1. Figure 6

[0043] Figure 8 A schematic view of the film shape of the second embodiment of the film ring forming device of the present application.

[0044] Figure 9 A schematic view of another direction of the embodiment shown in FIG. 1. Figure 8

[0045] Figure 10 A structural schematic view of the first convex wheel of the embodiment shown in FIG. 1. Figure 8

[0046] Reference signs: film ring forming device 100, first driving convex wheel assembly 110, first driving shaft 111, first bearing 112, first convex wheel group 113, first convex wheel 114, second convex wheel 115, first convex 116, first cylindrical surface 117, second cylindrical surface 118, second driving convex wheel assembly 120, second driving shaft 121, second bearing 122, second convex wheel group 123, third convex wheel 124, fourth convex wheel 125, second convex 126, third cylindrical surface 127, fourth cylindrical surface 128, former 130, guide portion 131, base 140, first assembly position 141, second assembly position 142, film 200, bottom film 210, side film 220, first side film 221, second side film 222, first contact portion 223, second contact portion 224, coated film object 300, advancing direction 301, forming cable 400. DETAILED DESCRIPTION

[0047] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0048] ​​​​​It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0050] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0052] The present application discloses a film hoop forming method and device, which includes some or all of the technical features of the following embodiments; as an example. In one embodiment of the present application, a film hoop forming method includes the following steps: pulling a film and a film-coated object separately, wherein the film includes a bottom film and a side film connected to each other; when the first driving convex wheel assembly is in a rotating state, the cylindrical surface is used to pull the side film forward, and the end surface outer ring is used to drive the second driving convex wheel assembly to rotate; when the second driving convex wheel assembly is in a rotating state, the cylindrical surface is used to pull the contact portion of the side film to lift and tighten it, wherein the contact portion is the portion where the side film connects to the bottom film; the bottom film and the side film cooperate to hoop the film-coated object to obtain a formed cable. The above-mentioned film ring wrapping forming method cooperates with the film and the film-coated object in a traction state through the design of the first driving convex wheel assembly and the second driving convex wheel assembly. On the one hand, it has a traction effect on the side film at the position where the film is connected to the bottom film, so that the side film at this position is pulled and tightened relative to the bottom film; on the other hand, it also realizes a traction direction that is the same as the forward direction of the film-coated object, so that the side film cooperates with the bottom film to achieve double tightening of the film-coated object in the ring wrapping direction and the traction direction; on the other hand, due to the tension of the side film and the bottom film, the film is subjected to uniform force during the ring wrapping forming process, thereby obtaining morphological optimization in the ring wrapping process, thereby avoiding the problem of stacking of the film during the forward process due to incomplete pulling up; on the other hand, since the problem of film ring wrapping deformation is overcome, the undesirable phenomenon of rough appearance is greatly reduced, the yield rate is improved, and the signal transmission effect of the formed cable is guaranteed. The following is combined with Figures 1 to 10 , the film ring forming method and device are described in detail.

[0053] In some embodiments, a film ring forming device 100 is as follows: Figure 2 As shown, it includes a first driving convex wheel assembly 110, a second driving convex wheel assembly 120, a former 130 and a base 140; the first driving convex wheel assembly 110 and the second driving convex wheel assembly 120 are respectively arranged on the base 140, and the base 140 is arranged on the former 130, Figure 3 and Figure 4 The former 130 is configured to input the film 200 and the film-coated object 300; Figure 8 and Figure 9, the cylindrical surface of the first driving convex wheel assembly 110 is configured to contact the side film 220 of the film 200, and the end surface outer ring cooperates with the second driving convex wheel assembly 120; the cylindrical surface of the second driving convex wheel assembly 120 is configured to contact the contact part of the side film 220, wherein the contact part is the part of the side film 220 connecting the bottom film 210 of the film 200; in the rotating state, the first driving convex wheel assembly 110 drags the side film 220 to move forward with the cylindrical surface, and drives the second driving convex wheel assembly 120 to rotate with the end surface outer ring, and in the rotating state, the second driving convex wheel assembly 120 drags the contact part of the side film 220 to pull and tighten, so that the bottom film 210 and the side film 220 cooperatively wrap the coated object 300, and the shaped cable 400 as shown in Figure 1 is obtained. Such design, by cooperation of the first driving convex wheel assembly 110 and the second driving convex wheel assembly 120, ingeniously combines the film 200 in the dragging state and the coated object 300, on one hand, plays a dragging role on the side film 220 at the position of the connecting bottom film 210 of the film 200, so that the side film 220 at this position is pulled and tightened relative to the bottom film 210; on the other hand, for the side film 220, realizes the same dragging direction as the advancing direction 301 of the coated object 300, so that the side film 220 cooperates with the bottom film 210 to realize the double tightening of the wrapping direction and the dragging direction for the coated object 300; on the other hand, due to the tightening of the side film 220 cooperating with the bottom film 210, the film 200 is uniformly stressed in the wrapping forming process, so that the shape is optimized in the wrapping process, and the problem of stacking of the film 200 in the advancing process due to incomplete pulling up is avoided; on the other hand, since the problem of film 200 wrapping deformation is overcome, the appearance of the bad phenomenon is greatly reduced, the yield is improved, and the signal transmission effect of the shaped cable 400 is ensured.

[0054] As an example, the film wrapping forming device 100 further comprises a first dragging assembly for dragging the coated object 300 to input the coated object 300 into the former 130; the film wrapping forming device 100 further comprises a second dragging assembly for dragging the film 200 to input the film 200 into the former 130. As an example, the coated object 300 is a cable, such as a data line. In each embodiment, as shown in Figure 4 and Figure 5As shown, the first driving convex wheel assembly 110 and the second driving convex wheel assembly 120 are respectively arranged on the base 140, the base 140 is arranged on the former 130, the former 130 is configured to input the film 200 and the coated object 300; in order to protect the film 200, the former 130 is provided with an arc-shaped surface guide portion 131 at the position of inputting the film 200. As an example, the base 140 is L-shaped or 7-shaped, the base 140 is provided with a first assembly position 141 and a second assembly position 142, the first driving convex wheel assembly 110 or the first driving shaft 111 thereof is mounted on the first assembly position 141, the second driving convex wheel assembly 120 or the second driving shaft 121 thereof is mounted on the second assembly position 142, and the mounting directions of the first assembly position 141 and the second assembly position 142 are perpendicular, that is, the rotation axes of the first driving shaft 111 and the second driving shaft 121 are perpendicular. Through the cooperation of the first driving convex wheel assembly 110 and the second driving convex wheel assembly 120, the film ring forming device 100 can pull the contact part of the side film 220 connected to the bottom film 210 and pull and tighten, and the pulling direction of the side film 220 is consistent with the advancing direction 301 of the coated object 300, realizing double tightening of the ring wrapping direction and the pulling direction, so that the film 200 is uniformly stressed and the shape is optimized during the ring wrapping process, avoiding the stacking problem caused by incomplete pulling, reducing the appearance of roughness, improving the yield, and ensuring the signal transmission effect of the formed cable 400. In addition, the arc-shaped guide portion 131 of the former 130 at the position of inputting the film 200 can protect the film 200 and reduce wear during transportation.

[0055] As shown in each embodiment, Figure 4 or Figure 9 As shown, the cylindrical surface of the first driving convex wheel assembly 110 is configured to contact the side film 220 of the film 200, and the end face outer ring cooperates with the second driving convex wheel assembly 120; that is, the position of the first driving convex wheel assembly 110 contacting the side film 220 is the cylindrical surface, and the end position of the cylindrical surface cooperates with the second driving convex wheel assembly 120, which can also be understood as the end position of the cylindrical surface close to the second driving convex wheel assembly 120 cooperates with the second driving convex wheel assembly 120. As an example, it should be noted that in each embodiment, the cylindrical surface is not a completely smooth cylindrical surface in the mathematical sense, the surface of the cylindrical surface has convex points, the convex points have arc surfaces, and the outer circumferential surface of each convex point forms a cylindrical surface for pulling the side film 220; as an example, Figure 10As shown, the first convex point wheel 114 has a plurality of first convex points 116, and the outer circumferential surface of each first convex point 116 forms a first cylindrical surface 117 for pulling the side film 220. The remaining embodiments are similar and will not be described in detail. In other embodiments, the cylindrical surface of the first driving convex point wheel assembly 110 includes a first portion and a second portion. The first portion is a smooth cylindrical surface in the mathematical sense, which is used to pull the side film 220 forward. The second portion is located at the end position as an end face outer ring, and the second portion has convex points such as the first convex points 116. The first convex points 116 of the second portion cooperate with the second driving convex point wheel assembly 120 to drive the second driving convex point wheel assembly 120 to rotate. With such a design, the cylindrical surface of the first driving convex point wheel assembly 110 can increase the friction with the side film 220 by the arc surface design of the convex points such as the first convex points 116, thereby ensuring stable traction and preventing slipping. The convex points such as the first convex points 116 of the end face outer ring cooperate with the second driving convex point wheel assembly 120 to drive the second assembly to rotate synchronously, so that the two assemblies cooperate to pull the contact portion of the side film 220 connected to the bottom film 210, thereby achieving a double-tightening effect. In addition, the partition design of the cylindrical surface, such as the smooth traction portion and the end face transmission portion, is beneficial to precise division of labor, which not only ensures the traction power of the film 200 in the forward direction 301, but also ensures the synchronous action of the second driving assembly through the transmission of the end face outer ring, thereby further optimizing the stress uniformity of the film 200 during wrapping, avoiding the film stacking or deformation problem caused by asynchronous transmission, and improving the appearance flatness of the formed cable 400 and the signal transmission stability.

[0056] In each embodiment, the cylindrical surface of the second driving convex point wheel assembly 120 is configured to contact the contact portion of the side film 220, wherein the contact portion is the portion of the side film 220 connected to the bottom film 210. In some embodiments, as shown in FIG. 2, the cylindrical surface of the second driving convex point wheel assembly 120 is configured to contact the contact portion of the side film 220, and the contact portion is the portion of the side film 220 connected to the bottom film 210. Figure 7As shown, the cylindrical surface of the first driving protrusion wheel assembly 110 is provided with first protrusions 116, or the first driving protrusion wheel assembly 110 has a cylindrical surface formed by the first protrusions 116, or the first protrusion wheel 114 and the second protrusion wheel 115 of the first driving protrusion wheel assembly 110 are respectively provided with first protrusions 116; as an example, the first driving protrusion wheel assembly 110 respectively contacts the side film 220 and the second driving protrusion wheel assembly 120 through the first protrusions 116. The cylindrical surface of the second driving protrusion wheel assembly 120 is provided with second protrusions 126, or the second driving protrusion wheel assembly 120 has a cylindrical surface formed by the second protrusions 126, or the third protrusion wheel 124 and the fourth protrusion wheel 125 of the second driving protrusion wheel assembly 120 are respectively provided with second protrusions 126; as an example, the second driving protrusion wheel assembly 120 respectively contacts the contact part of the side film 220 and the first driving protrusion wheel assembly 110 through the second protrusions 126. With such a design, the first driving protrusion wheel assembly 110 and the second driving protrusion wheel assembly 120 can increase the friction with the side film 220 and the contact part by the arc surface of the protrusions through the design of the first protrusions 116 and the second protrusions 126, so as to ensure that the film 200 is not easy to slip during traction and the transmission is more stable; the cylindrical surface structure formed by the protrusions can precisely fit the surface of the film, so that the contact part of the side film 220 connecting the bottom film 210 is uniformly pulled and tightened, and the first driving protrusion wheel assembly 110 and the second driving protrusion wheel assembly 120 are cooperatively rotated to realize the double tightening effect of the film 200. In addition, the distribution design of the protrusions of the protrusion wheels such as the first protrusion wheel 114 and the second protrusion wheel 115 can enhance the uniformity of film traction through multi-point contact, avoid film deformation or tearing caused by single-point stress, further optimize the stress state during ring wrapping forming, reduce adverse phenomena such as film stacking and rough appearance, and effectively improve the yield rate and signal transmission performance of the formed cable 400.

[0057] In each embodiment, as shown in Figure 4 and Figure 7 The first driving protrusion wheel assembly 110 cooperates with the second protrusion 126 of the second driving protrusion wheel assembly 120 through the first protrusion 116 of the end face outer ring of the first driving protrusion wheel assembly 110. As shown in Figure 3 and Figure 6As shown, when the first driving convex wheel assembly 110 is rotating, it pulls the side film 220 forward with its cylindrical surface, and drives the second driving convex wheel assembly 120 to rotate with its end outer ring. When the second driving convex wheel assembly 120 is rotating, it pulls the contact portion of the side film 220 with its cylindrical surface to lift and tighten it, so that the bottom film 210 and the side film 220 cooperate to wrap the coated object 300, thereby forming a formed cable 400. As an example, the first convex points 116 and the second convex points 126 cooperate with each other in a sliding friction or rolling friction manner; or, the first convex points 116 and the second convex points 126 engage in toothed engagement; as an example, the first convex points 116 engage in toothed engagement with the second convex points 126 on the bottom surface of the second driving convex wheel assembly 120 or its second convex wheel assembly 123. As an example, the second driving convex wheel assembly 120 or its second convex wheel group 123 or the third convex wheel 124 and the fourth convex wheel 125 therein are cylindrical, and the cylindrical surface and the bottom surface of the cylinder are provided with the second convex points 126. The second convex points 126 located on the cylindrical surface are used to pull and tighten the contact part of the side film 220, and the second convex points 126 located on the bottom surface are used to cooperate with the first convex points 116, so that the first driving convex wheel assembly 110 drives the second driving convex wheel assembly 120 to rotate with the outer ring of the end face. This design, on the one hand, achieves a bidirectional tightening effect on the film 200 through the coordinated design of cylindrical traction and end face outer ring transmission of the first and second driving convex wheel assemblies 110 and 120. Furthermore, the first driving convex wheel assembly 110, through the first convex points 116 of the end face outer ring, cooperates with the second convex points 126 of the bottom surface of the second driving convex wheel assembly 120 through sliding / rolling friction or tooth engagement, ensuring synchronous rotation of the two and avoiding uneven tension of the film 200 due to asynchronous transmission. On the other hand, the second convex points 126 of the cylindrical surface of the second driving convex wheel assembly 120 precisely pull the contact area between the side film 220 and the bottom film 210, and cooperate with the forward traction of the first driving assembly, so that when the film 200 wraps around the coated object 300, it forms a dual tension force in the forward direction 301 and the wrapping direction, ensuring that the film is tightly adhered and evenly stressed. Furthermore, the second drive wheel assembly 120 is provided with bumps 126 on both its cylindrical surface and bottom surface. These bumps not only function as a contact point for the film, but also facilitate power transmission via the bottom bumps to the first drive assembly. This simplifies the structure while improving integration and reducing device size and cost. Furthermore, this bidirectional tensioning mechanism effectively prevents film 200 from stacking due to incomplete tensioning. Furthermore, the precision of the bumps reduces film deformation, lowering the rate of defective cables 400 due to uneven appearance and ensuring stable signal transmission performance.

[0058] As an example, Figure 8As shown, the side film 220 includes a first side film 221 and a second side film 222 connected to the bottom film 210 respectively. Figure 9 The portion of the first side film 221 connected to the bottom film 210 is the first contact portion 223, and the portion of the second side film 222 connected to the bottom film 210 is the second contact portion 224; it can also be understood that the portion of the first side film 221 adjacent to the bottom film 210 is the first contact portion 223, and the portion of the second side film 222 adjacent to the bottom film 210 is the second contact portion 224; when the first driving convex wheel assembly 110 is in a rotating state, the first convex wheel 114 of the first driving convex wheel assembly 110 pulls the first side film 221 forward with the first cylindrical surface 117 The outer ring of the end face drives the third convex wheel 124 of the second driving convex wheel assembly 120 to rotate. When the third convex wheel 124 is in a rotating state, the third convex wheel 124 uses the third cylindrical surface 127 to pull and tighten the first contact portion 223 of the first side film 221; the second convex wheel 115 of the first driving convex wheel assembly 110 uses the second cylindrical surface 118 to pull the second side film 222 forward, and the outer ring of the end face drives the fourth convex wheel 125 of the second driving convex wheel assembly 120 to rotate. When the fourth convex wheel 125 is in a rotating state, the second contact portion 224 of the second side film 222 is pulled and tightened by the fourth cylindrical surface 128. This design, on the one hand, forms a double action of independent traction and forward movement on the left and right sides, coordinated with pulling and tightening, through the cooperation of the first convex wheel 114 and the third convex wheel 124 to pull the first side film 221 and its first contact portion 223, and the cooperation of the second convex wheel 115 and the fourth convex wheel 125 to pull the second side film 222 and its second contact portion 224, ensuring that the force on both sides of the film 200 is uniform and symmetrical, avoiding the deviation of the coated object 300 or the wrinkling of the film due to the uneven tension on one side. On the other hand, the coordinated transmission of the cylindrical surface of each convex wheel and the convex points of the outer ring of the end face enables the side films on both sides to obtain tension in the forward direction 301 and the wrapping direction at the same time, especially for the precise pulling of the connection between the bottom film 210 and the side film 220, that is, the contact portion, to ensure that the film 200 is completely fitted to the coated object 300, eliminating the risk of edge stacking. Furthermore, the dual-sided independent drive structure adapts to various sizes of film-coated objects 300. Flexible production is achieved by adjusting the transmission parameters of the two convex wheel elements, such as rotational speed and friction force. Furthermore, the zoned transmission design reduces the load on individual components, lowering the risk of transmission failure due to localized wear and improving the long-term operational stability of the device. Furthermore, the dual-sided synchronous tensioning mechanism fundamentally prevents deformation and misalignment of the film 200 during the wrapping process, significantly improving the surface smoothness of the formed cable 400 and reducing the defect rate, effectively ensuring the stability and reliability of signal transmission.

[0059] In some embodiments, as shown in Figure 4 and Figure 6 The first driving convex wheel assembly 110 includes a first convex wheel group 113, two first driving shafts 111 and two first bearings 112. The first convex wheel group 113 includes a first convex wheel 114 and a second convex wheel 115, which are respectively arranged on the first driving shaft 111 through the first bearing 112. The two first driving shafts 111 are respectively arranged on the first assembly position 141 of the base 140. The second driving convex wheel assembly 120 includes a second driving shaft 121, a second bearing 122 and a second convex wheel group 123. The second convex wheel group 123 is arranged on the second driving shaft 121 through the second bearing 122. The second driving shaft 121 is arranged on the second assembly position 142 of the base 140. The cylindrical surface of the first convex wheel 114 and the second convex wheel 115 is configured to contact the side surface film 220 on both sides of the film 200. The end surface outer ring of the first convex wheel 114 and the second convex wheel 115 is matched with the second convex wheel group 123. The cylindrical surface of the second convex wheel group 123 is configured to contact the contact part of the side surface film 220 on both sides of the bottom surface film 210. In combination with Figure 8 and Figure 9, the first cylindrical surface 117 of the first convex point wheel 114 is configured to contact the first side surface film 221 of the film 200, and the second cylindrical surface 118 of the second convex point wheel 115 is configured to contact the second side surface film 222 of the film 200. Such a design, on the one hand, the first convex point wheel 114 and the second convex point wheel 115 are installed on the first driving shaft 111 through the first bearing 112, and the second convex point wheel set 123 is installed on the second driving shaft 121 through the second bearing 122, the bearing support reduces the rotating friction, ensures the uniform contact pressure of the convex point wheel and the film 200, and avoids the film 200 tearing or tension mutation caused by jamming. On the other hand, the two first driving shafts 111 correspond to the first side surface film 221 and the second side surface film 222 respectively, cooperate with the second convex point wheel set 123 to pull the two side contact parts, form a left-right symmetrical bidirectional tightening force, make the film 200 uniformly wrap the coated object 300, and prevent the cable 400 from being eccentric or the film from being wrinkled caused by uneven unilateral stress. On the other hand, the first assembly position 141 and the second assembly position 142 of the base 140 are perpendicular to the driving shaft, so that the first driving convex point wheel assembly 110 and the second driving convex point wheel assembly 120 form a three-dimensional transmission structure, which can adapt to coated objects 300 with different diameters by adjusting the distance between the assembly positions, and is convenient for disassembly and maintenance, and reduces the equipment debugging cost. On the other hand, the two cylindrical surfaces of the first convex point wheel 114 and the second convex point wheel 115 are responsible for pulling the side surface film 220 forward respectively, and the end face outer ring cooperates with the second convex point wheel set 123 to drive the pulling contact part, which ensures that the film 200 is accurately matched in force in the ring wrapping process, and inhibits the stacking problem at the connection between the bottom surface film 210 and the side surface film 220, and improves the appearance flatness and signal transmission reliability of the formed cable 400.

[0060] In some embodiments, the second convex point wheel set 123 includes a third convex point wheel 124 and a fourth convex point wheel 125; the third convex point wheel 124 and the fourth convex point wheel 125 are respectively arranged on the second driving shaft 121 through the second bearing 122, and the two second driving shafts 121 are respectively arranged on the two second assembly positions 142 of the base 140; the end face outer ring of the first convex point wheel 114 cooperates with the third convex point wheel 124, and the end face outer ring of the second convex point wheel 115 cooperates with the fourth convex point wheel 125; the cylindrical surfaces of the third convex point wheel 124 and the fourth convex point wheel 125 are respectively configured to contact the contact part of the side surface film 220 on one side of the bottom surface film 210. Figure 8 and Figure 9, the third cylindrical surface 127 of the third convex wheel 124 is configured to contact the first contact part 223 of the first side film 221 of the film 200, and the fourth cylindrical surface 128 of the fourth convex wheel 125 is configured to contact the second contact part 224 of the second side film 222 of the film 200. In this way, on the one hand, the third convex wheel 124 and the fourth convex wheel 125 respectively contact the first contact part 223 of the first side film 221 and the second contact part 224 of the second side film 222 through the third cylindrical surface 127 and the fourth cylindrical surface 128, and cooperate with the traction of the first convex wheel 114 and the second convex wheel 115 to form bidirectional pulling in left-right symmetry, so as to ensure that the connection parts of the film 200 on both sides and the bottom film 210 are synchronously tightened, and avoid wrinkles or stacking caused by uneven stress. On the other hand, the end face outer ring of the first convex wheel 114 and the end face outer ring of the third convex wheel 124 and the end face outer ring of the second convex wheel 115 and the fourth convex wheel 125 are toothed or frictionally driven by the first convex 116 and the second convex 126, so as to ensure that the two convex wheel groups are synchronously rotated with the first driving convex wheel assembly 110, and avoid sudden change of tension of the film 200 due to transmission lag, and improve the stability of the wrapping process. On the other hand, the two second driving shafts 121 are independently installed in the second assembly position 142 of the base 140, and can be adjusted in shaft spacing to adapt to objects 300 with different diameters; the third convex wheel 124 and the fourth convex wheel 125 are independently assembled through the second bearing 122, so that the single convex wheel can be easily disassembled and replaced, and the maintenance cost is reduced. On the other hand, the second convex 126 of the cylindrical surface of the second convex wheel group 123 precisely acts on the transition area of the side film 220 and the bottom film 210, i.e. the contact part, to generate uniform pulling force through rolling friction, sliding friction or engagement, and form a composite tightening force with the forward traction of the first driving assembly, so as to ensure that the film is completely wrapped around the object 300, suppress the unevenness of the edge, and improve the appearance quality of the formed cable 400 and the signal transmission reliability.

[0061] In some embodiments, as Figure 7As shown, in the first convex wheel group 113, the first convex wheel 114 and the second convex wheel 115 have opposite rotation directions, so that the first cylindrical surface 117 of the first convex wheel 114 and the second cylindrical surface 118 of the second convex wheel 115 have opposite rotation directions; similarly, in the second convex wheel group 123, the third convex wheel 124 and the fourth convex wheel 125 have opposite rotation directions, so that the third cylindrical surface 127 of the third convex wheel 124 and the fourth cylindrical surface 128 of the fourth convex wheel 125 have opposite rotation directions. Such design, on the one hand, when the first convex wheel 114 and the second convex wheel 115 rotate in opposite directions, the first cylindrical surface 117 and the second cylindrical surface 118 of the two sides of the film produce symmetrical traction tension, cooperating with the third convex wheel 124 and the fourth convex wheel 125 rotating in opposite directions to the symmetrical lifting of the two sides of the contact part, ensuring that the film 200 is evenly stressed on both sides, avoiding the offset of the coated object 300 or the film wrinkles caused by the unbalanced tension on one side. On the other hand, the convex wheel group rotating in opposite directions can offset the lateral moment generated during rotation, reduce the vibration and noise of the device during operation, improve the stability of the transmission system, reduce the risk of bearing wear or driving shaft deformation caused by unbalanced moment, and prolong the service life of the device. On the other hand, the bidirectional traction formed by the opposite rotation cooperates with the bidirectional lifting to form a composite force field, so that the film 200 obtains symmetrical tension in the forward direction 301 and the wrapping direction at the same time, especially for the connection between the bottom film 210 and the side film 220 to achieve precise stretching, ensure that the film is completely attached to the coated object 300, eliminate the edge stacking risk, and improve the flatness of the formed cable 400. On the other hand, by adjusting the speed difference of the opposite rotation, different diameters of the coated object 300 can be flexibly adapted, for example, for thicker cables, the opposite rotation speed difference is increased to enhance the tension, and for thinner cables, the difference is reduced to avoid excessive stretching of the film, improve the process adaptability of the device to different products, and reduce the debugging cost.

[0062] In some embodiments, as Figure 6 and Figure 7As shown, the cylindrical surface of the first driving convex wheel assembly 110 is provided with a first convex point 116, or the first driving convex wheel assembly 110 has a cylindrical surface formed by the first convex point 116. The cylindrical surface of the second driving convex wheel assembly 120 is provided with a second convex point 126, or the second driving convex wheel assembly 120 has a cylindrical surface formed by the second convex point 126. The first driving convex wheel assembly 110 mates with the second convex point 126 of the second driving convex wheel assembly 120 through the first convex point 116 on its outer end surface. This design, on the one hand, increases friction with the side film 220 and the contact portion, preventing slippage during traction, ensuring stable transmission of the film 200, and evenly pulling and tightening the contact portion between the side film 220 and the bottom film 210. On the other hand, the first protrusion 116 on the outer ring of the end face of the first driving protrusion wheel assembly 110 and the second protrusion 126 of the second driving protrusion wheel assembly 120 cooperate through sliding / rolling friction or tooth engagement, driving the two to rotate synchronously, achieving the coordinated action of pulling forward and pulling and tightening, thereby preventing uneven tension or stacking of the film 200 due to asynchronous transmission. On the other hand, the cylindrical surface structure formed by the protrusions precisely fits the surface of the film 200, so that the side film 220 is subjected to tension in both the forward direction 301 and the wrapping direction, ensuring that the film 200 evenly wraps the coated object 300, reducing deformation, and improving the smoothness of the formed cable 400 and the stability of signal transmission.

[0063] In one embodiment, a film ring forming device such as Figure 2 As shown, it includes a first driving convex wheel assembly 110, a second driving convex wheel assembly 120, a former 130 and a base 140; Figure 3 In the overall system, the first driving convex wheel assembly 110 drives both sides of the film 200 forward, and the second driving convex wheel assembly 120 drives both sides of the film 200 to rise. The lifting drive of the second driving convex wheel assembly 120 and the forward drive of the first driving convex wheel assembly 110 are driven by convex meshing. The first driving convex wheel assembly 110 pulls the side films 220 of the film 200, carrying the side films 220 forward. The second driving convex wheel assembly 120 pulls both sides of the side films 220 at the bottom film 210 of the film 200 to prevent the film 200 from stacking up during the forward process due to incomplete pulling.

[0064] As an example, the convex point shape of the convex point wheel is arc-shaped, that is, the shape of the first convex point 116 and the second convex point 126 is arc-shaped, so as not to damage the film 200 during the movement of driving the film 200; as an example, the first driving convex point wheel assembly 110 is actively driven for forward driving, and the second driving convex point wheel assembly 120 is passively driven for lifting driving; the first driving convex point wheel assembly 110 actively driven rotates the second driving convex point wheel assembly 120 passively driven through the meshing action between the convex points, and the friction between the convex point wheel and the film 200 keeps the film 200 from sliding and stacking during forward movement.

[0065] As an example, the meshing ratio between the first driving convex point wheel assembly 110 for forward driving and the second driving convex point wheel assembly 120 for lifting driving is 1:1, and in other embodiments, the meshing ratio between the first driving convex point wheel assembly 110 for forward driving and the second driving convex point wheel assembly 120 for lifting driving is N:1, and N is not 1; N can be fine-tuned according to the size of the deformation of the film 200 when it is lifted during coating. If the film 200 deforms significantly when it is lifted, it means that the lifting wheel rotates too fast, causing the friction between the lifting wheel and the film 200 to be large, at which time the meshing ratio between the two wheels can be reduced, for example, by adjusting the number of convex points or the arc ratio between the two wheels to reduce the meshing ratio between the two wheels, thereby reducing the speed ratio between the lifting wheel and the forward wheel, and vice versa. In this way, by using a film ring wrapping forming device with convex point wheels, the first convex point 116 cooperates with the second convex point 126 to lift the film 200 on both sides while the film 200 is moving forward during film ring wrapping forming, avoiding deformation and stacking of the film 200.

[0066] As an example, the first driving convex point wheel assembly 110 for forward driving drives the film 200 to move forward, which is the cylindrical surface of the wheel, and the position meshing with the second driving convex point wheel assembly 120 for lifting driving is the end face outer ring of the wheel, which usually cannot exceed the radius of the circle, otherwise it cannot rotate; and the second driving convex point wheel assembly 120 for lifting driving drives the film 200 to lift and mesh with the first driving convex point wheel assembly 110, which are both cylindrical surfaces. Such a design provides a double-wheel meshing design that lifts the film 200 on both sides while moving forward to avoid stacking and deformation of the film 200 during ring wrapping.

[0067] In some embodiments, a film ring wrapping forming method includes the following steps: respectively pulling a film 200 and a film-coated object 300, wherein the film 200 includes a bottom film 210 and a side film 220 connected together; a first driving convex point wheel assembly 110 drives the side film 220 to move forward in a cylindrical surface in a rotating state, and drives a second driving convex point wheel assembly 120 to rotate in an end surface outer ring; the second driving convex point wheel assembly 120 pulls and tightens a contact part of the side film 220 in a rotating state in a cylindrical surface, wherein the contact part is a part of the side film 220 connected to the bottom film 210; the bottom film 210 and the side film 220 cooperatively wrap the film-coated object 300 to obtain a formed cable 400. The film ring wrapping forming method, through the design of the first driving convex point wheel assembly 110 and the second driving convex point wheel assembly 120, cooperates with the film 200 and the film-coated object 300 in a pulling state, on the one hand, the side film 220 at the position of the connected bottom film 210 of the film 200 is pulled and tightened relative to the bottom film 210; on the other hand, the side film 220 also realizes the same pulling direction as the advancing direction 301 of the film-coated object 300, so that the side film 220 cooperates with the bottom film 210 to realize the double tightening of the wrapping direction and the pulling direction of the film-coated object 300; on the other hand, due to the tightening of the side film 220 cooperating with the bottom film 210, the film 200 is uniformly stressed in the wrapping forming process, so that the shape is optimized in the wrapping process, thereby avoiding the problem of stacking in the advancing process due to the film 200 not being completely pulled up; on the other hand, since the film 200 wrapping deformation problem is overcome, the appearance of the film 200 is greatly improved, the yield is improved, and the signal transmission effect of the formed cable 400 is ensured.

[0068] In some embodiments, the film ring wrapping forming method is based on the film ring wrapping forming device of any one of the embodiments, that is, the film ring wrapping forming method adopts the film ring wrapping forming device of any one of the embodiments. Since the film ring wrapping forming device of any one of the embodiments is adopted, the film ring wrapping forming method also has the beneficial technical effects of the film ring wrapping forming device, which are not repeated here.

[0069] To control the tension of the film 200 at different positions, in some embodiments, the speed ratio of the first driving pin wheel assembly 110 and the second driving pin wheel assembly 120 is set according to the moving speed of the bottom film 210 and the side film 220. In some embodiments, the engagement ratio of the first pin wheel set 113 of the first driving pin wheel assembly 110 and the second pin wheel set 123 of the second driving pin wheel assembly 120 is set to adjust the speed ratio of the first driving pin wheel assembly 110 and the second driving pin wheel assembly 120. In some embodiments, the number of pins or the arc ratio of the first pin wheel set 113 and the second pin wheel set 123 is set as the engagement ratio.

[0070] In some embodiments, the first driving pin wheel assembly 110 is in a rotating state, and the cylindrical surface of the first pin wheel set 113 pulls the side film 220 forward, and the end surface of the first pin wheel set 113 drives the second driving pin wheel assembly 120 to rotate; the second driving pin wheel assembly 120 is in a rotating state, and the cylindrical surface of the second pin wheel set 123 pulls and tightens the contact part of the side film 220.

[0071] It should be noted that other embodiments of the present application also include the film ring forming method and device formed by combining the technical features of the above embodiments.

[0072] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present application.

[0073] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method of forming a thin film ring package, the method comprising: The method comprises the following steps: respectively pulling the film (200) and the coated object (300), wherein the film (200) comprises a bottom film (210) and a side film (220) connected to each other; the first driving convex wheel assembly (110) pulls the side film (220) forward in a cylindrical surface in a rotating state, and drives the second driving convex wheel assembly (120) to rotate in an end surface outer ring; the second driving convex wheel assembly (120) pulls and tightens the contact part of the side film (220) in a cylindrical surface in a rotating state, wherein the contact part is the part of the side film (220) connected to the bottom film (210); the bottom film (210) and the side film (220) cooperatively wrap the coated object (300) to obtain a shaped cable (400).

2. The method of claim 1, wherein The rotating speed ratio of the first driving convex wheel assembly (110) and the second driving convex wheel assembly (120) is set according to the moving speed of the bottom film (210) and the side film (220).

3. The method of claim 2, wherein the film is formed into a ring shape. The meshing ratio of the first convex wheel group (113) of the first driving convex wheel assembly (110) and the second convex wheel group (123) of the second driving convex wheel assembly (120) is set to adjust the rotating speed ratio of the first driving convex wheel assembly (110) and the second driving convex wheel assembly (120).

4. The method of claim 3, wherein the film is formed into a ring shape. The number of convex points or the arc ratio of the first convex wheel group (113) and the second convex wheel group (123) is set as the meshing ratio.

5. The method of claim 3, wherein the film is formed into a ring shape. The first driving convex wheel assembly (110) pulls the side film (220) forward in a cylindrical surface of the first convex wheel group (113) in a rotating state, and drives the second driving convex wheel assembly (120) to rotate in an end surface outer ring of the first convex wheel group (113); The second driving convex wheel assembly (120) pulls and tightens the contact part of the side film (220) in a cylindrical surface of the second convex wheel group (123) in a rotating state.

6. A thin film ring pack forming device (100) characterized by, The method comprises a first driving convex wheel assembly (110), a second driving convex wheel assembly (120), a shaper (130) and a base (140); The first driving convex wheel assembly (110) and the second driving convex wheel assembly (120) are respectively arranged on the base (140), the base (140) is arranged on the shaper (130), and the shaper (130) is configured to input a film (200) and a coated object (300); The cylindrical surface of the first driving convex wheel assembly (110) is configured to contact the side film (220) of the film (200), and the end surface outer ring is matched with the second driving convex wheel assembly (120); The cylindrical surface of the second driving convex wheel assembly (120) is configured to contact the contact part of the side film (220), wherein the contact part is the part of the side film (220) connected to the bottom film (210) of the film (200); The first driving convex wheel assembly (110) drives the side film (220) to advance in a cylindrical surface in a rotating state, and drives the second driving convex wheel assembly (120) to rotate in an end surface outer ring, the second driving convex wheel assembly (120) pulls and tightens the contact part of the side film (220) in a cylindrical surface in a rotating state, so that the bottom film (210) and the side film (220) cooperatively wrap the film object (300), and a shaped cable (400) is obtained.

7. The film ring pack forming apparatus (100) according to claim 6, characterized by The first driving convex wheel assembly (110) comprises a first convex wheel group (113), two first driving shafts (111) and two first bearings (112); The first convex wheel group (113) comprises a first convex wheel (114) and a second convex wheel (115), the first convex wheel (114) and the second convex wheel (115) are respectively arranged on a first driving shaft (111) through a first bearing (112), and two first driving shafts (111) are respectively arranged on two first assembly positions (141) of the base (140); The second driving convex wheel assembly (120) comprises a second driving shaft (121), a second bearing (122) and a second convex wheel group (123); The second convex wheel group (123) is arranged on the second driving shaft (121) through the second bearing (122), and the second driving shaft (121) is arranged on the second assembly position (142) of the base (140); The cylindrical surface of the first convex wheel (114) and the second convex wheel (115) is respectively configured to contact the side film (220) on both sides of the film (200), and the end surface outer ring of the first convex wheel (114) and the second convex wheel (115) is respectively matched with the second convex wheel group (123); The cylindrical surface of the second convex wheel group (123) is configured to contact the contact part of the side film (220) on both sides of the bottom film (210).

8. The film ring pack forming apparatus (100) according to claim 7, characterized by The second convex wheel group (123) comprises a third convex wheel (124) and a fourth convex wheel (125); The third convex wheel (124) and the fourth convex wheel (125) are respectively arranged on a second driving shaft (121) through a second bearing (122), and two second driving shafts (121) are respectively arranged on two second assembly positions (142) of the base (140); The end surface outer ring of the first convex wheel (114) is matched with the third convex wheel (124), and the end surface outer ring of the second convex wheel (115) is matched with the fourth convex wheel (125); The cylindrical surface of the third convex wheel (124) and the fourth convex wheel (125) is respectively configured to contact the contact part of the side film (220) on one side of the bottom film (210).

9. The film ring pack forming apparatus (100) according to claim 8, characterized by In the first convex point wheel set (113), the first convex point wheel (114) and the second convex point wheel (115) have opposite rotating directions, so that the first cylindrical surface (117) of the first convex point wheel (114) and the second cylindrical surface (118) of the second convex point wheel (115) have opposite rotating directions. In the second convex point wheel set (123), the third convex point wheel (124) and the fourth convex point wheel (125) have opposite rotating directions, so that the third cylindrical surface (127) of the third convex point wheel (124) and the fourth cylindrical surface (128) of the fourth convex point wheel (125) have opposite rotating directions.

10. The film ring pack forming apparatus (100) according to any one of claims 6 to 9, characterized in that, The cylindrical surface of the first driving convex point wheel assembly (110) is provided with the first convex point (116) or the first driving convex point wheel assembly (110) has a cylindrical surface formed by the first convex point (116), and the cylindrical surface of the second driving convex point wheel assembly (120) is provided with the second convex point (126) or the second driving convex point wheel assembly (120) has a cylindrical surface formed by the second convex point (126); The first driving convex point wheel assembly (110) is matched with the second convex point (126) of the second driving convex point wheel assembly (120) through the first convex point (116) on the end face outer ring of the first driving convex point wheel assembly (110).

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