Thin film conveying device for strengthening rigidity of section of annular thin film

Abstract

The utility model discloses a thin film conveying device for strengthening the rigidity of the section of an annular thin film, and belongs to the technical field of energy conservation and environmental protection for saving packaging thin film consumption. The device comprises a rack assembly, wherein the rack assembly is sequentially provided with a film input assembly, a crease generation assembly and a film output assembly from bottom to top; original creases are formed on the symmetrical side edges of the annular thin film; the crease generation assembly comprises a surface-changing unfolding tripod, a wheel carrier and a crease wheel; the surface-changing unfolding tripod comprises double outwards-opened triangular plates, the bottom edges of the double triangular plates are fixedly connected with each other, and the vertex angles are fixedly connected through a transverse plate; the two wheel carriers are connected to the two side faces of the transverse plate correspondingly, and the creasing wheels are rotationally connected to the wheel carriers. In the specific use process, after the face-changing unfolding triangular frame unfolds the annular film in a face-changing mode, an annular film with new symmetrical side edges is generated, the new symmetrical side edges are rolled through the crease wheel to form new creases, two creases of an original annular film are preformed into four creases, and the rigidity of the section of the annular film is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving and environmental protection technology that saves packaging film usage, and more specifically, to a film transport device that strengthens the rigidity of the annular film cross-section. Background Technology

[0002] In the packaging industry, label processing equipment requires the long-term and large-scale use of ring-shaped film, a material that is consumed in huge quantities. In today's increasingly competitive market, traditional methods demand that the ring-shaped film meet certain thickness requirements, which is less environmentally friendly and economical, resulting in low competitiveness among equipment customers. The market needs to reduce film weight and thickness to cope with fierce competition, but traditional methods offer little room for thinning, as this leads to a decrease in the rigidity of the ring-shaped film's cross-section. Existing ring-shaped film materials, because they are supplied in rolls, such as... Figure 11 As shown, there are two symmetrical original creases, which are the two original creases that were pre-made when the annular material entered the post-packaging equipment. During packaging, the central column of the post-packaging equipment and other cooperating components are used to complete the actions of opening the annular film, cutting the annular film, projecting the film downwards, covering the outer surface of the container with the annular film, and applying external force to shrink the annular film, so that it is tightly adhered to the outer surface of the container.

[0003] Because traditional annular film rolls only have two creases, when beverage containers have relatively sharp edges, such as square or oval bottles, the film's elasticity causes it to shrink slightly as it leaves the central column, turning the annular film cross-section into an ellipse. This increases the mismatch between the film and container cross-sections, leading to sharp corners of the container blocking a section or point of the film. The film cannot reach the intended wrapping position smoothly, especially when the container has a large shoulder angle, poor guidance, or the film itself is thin or has poor rigidity. This can cause the film to jam, preventing it from being properly inserted and affecting equipment performance. Replacing this with uneconomical methods such as slowing down the equipment or increasing the film thickness cannot meet the demands of special containers, thinner films, and higher operating speeds, resulting in film waste, inadequate packaging affecting packaging quality, and low production efficiency. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] To address the aforementioned problems in the existing annular film packaging process, this invention provides a film transport device that enhances the rigidity of the annular film cross-section by pre-forming the original two creases of the annular film into four creases, thereby improving the rigidity of the annular film cross-section.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] A film transfer device for enhancing the rigidity of annular film cross-section includes a frame assembly. The frame assembly, from bottom to top, sequentially houses a film input component, a crease generation component, and a film output component. Initial creases are formed on the symmetrical sides of the annular film. The crease generation component includes a face-changing unfolding triangle, wheel frames, and crease wheels. The face-changing unfolding triangle includes outwardly opening double triangles, with their base edges fixedly connected and their apexes fixedly connected via a horizontal plate. Two wheel frames are respectively connected to the two sides of the horizontal plate, and the crease wheels are rotatably connected to the wheel frames. In practical use, the face-changing unfolding... After the tripod unfolds the annular film, it generates a new annular film with symmetrical sides. The crease wheel rolls to create new creases on the new symmetrical sides, pre-forming the original two creases of the annular film into four creases, which improves the cross-sectional rigidity of the annular film. During the packaging process, the annular film contracts momentarily when it leaves the central column due to its own elasticity. At this moment, because the cross-sectional rigidity of the annular film is greatly increased, the pre-formed cross-section remains stable when it is stretched open by the central column, maintains the pre-formed cross-section, and is then detached from the central column and projected, until it enters the predetermined covering position of the packaging container.

[0009] A film conveying device that further enhances the rigidity of the annular film cross-section has a wheel frame movably connected to the side of a horizontal plate. A transverse blind hole is opened on the side of the horizontal plate, and a transverse potential energy spring is installed in the blind hole. The back of the wheel frame is pressed against the outer end of the potential energy spring. The potential energy spring applies appropriate force evenly and flexibly to ensure that the annular film is fully expanded, and works with the crease wheel to achieve the force of the two additional creases required for forming.

[0010] A membrane transmission device that further enhances the rigidity of the annular membrane cross-section has a double triangular plate with a base width smaller than the annular membrane, making it easier for the double triangular plate to expand the annular membrane.

[0011] The film transfer device further enhances the rigidity of the annular film cross-section. The crease wheel is a rubber-coated bearing, which ensures the generation of new creases while applying buffer pressure to prevent damage to the annular film.

[0012] The film transmission device, which further enhances the rigidity of the annular film cross section, also includes a power component. The power component is mounted on the upper part of the frame assembly, and its output end is rotatably connected to the film output assembly for convenient traction output.

[0013] A film conveying device that further enhances the rigidity of the annular film cross-section includes a film output assembly mounted on a frame assembly and sequentially receiving a flattening roller group, a guide roller group, a power roller group, and a constant tension output roller group for the annular film. After flattening and guiding the four-fold annular film in sequence, it is output to the next process under constant tension.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0016] This utility model relates to a film transfer device that enhances the rigidity of the annular film cross-section. When the shoulder transition section of a square bottle or other irregularly shaped container has a sharp angle, i.e., the transition from top to bottom is abrupt, the annular film passing through this device has four folds, which greatly increases its cross-sectional rigidity and makes it easier to cover the corresponding cross-sectional angle of the container. On the one hand, it can prevent the film from deviating from the predetermined center when it is opened by the central column, leaves the bottom section of the central column, or is projected. On the other hand, it can be projected into the container covering position more smoothly. For thinner films, increasing to four folds can enhance the cross-sectional rigidity when the film is opened, maintain the rigidity of the sharp corners for a longer time, complete the projection more smoothly, and make it easier to position and cover the container. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a thin-film transport device for enhancing the rigidity of an annular thin-film cross-section, as shown in a specific embodiment.

[0018] Figure 2 for Figure 1 The main view;

[0019] Figure 3 for Figure 2 Side view;

[0020] Figure 4 This is a schematic diagram of the thin film transport device after the frame assembly has been removed, according to a specific embodiment.

[0021] Figure 5 This is a schematic diagram of the face-changing unfolding tripod structure in a specific embodiment.

[0022] Figure 6 for Figure 5 A top-view structural diagram;

[0023] Figure 7 for Figure 5 A schematic diagram of the side view structure;

[0024] Figure 8 for Figure 9 A top-view structural diagram;

[0025] Figure 9 for Figure 6 A schematic diagram of the AA cross-section;

[0026] Figure 10 for Figure 9 A magnified structural diagram of part B;

[0027] Figure 11 This is a schematic diagram of an existing annular thin film cross-section structure;

[0028] Figure 12 This is a top view of a four-fold annular film stretched open by a central column.

[0029] In the diagram: 1-Frame assembly; 2-Film output assembly; 3-Crease generation assembly; 4-Film input assembly; 5-Power assembly; 10-Annular film; 20-Original crease; 30-New crease; 21-Flattening roller assembly; 22-Guide roller assembly; 23-Power roller assembly; 24-Constant tension output roller assembly; 31-Face-changing unfolding triangle; 32-Wheel frame; 33-Crease wheel; 34-Potential energy spring; 35-Horizontal plate; 311-Double triangle plate. Detailed Implementation

[0030] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0031] Example 1

[0032] The film transport device for strengthening the rigidity of the annular film cross-section in this embodiment, such as Figure 1 , 2 As shown in Figure 3, the device includes a frame assembly 1, which, from bottom to top, houses a film input assembly 4, a crease generation assembly 3, and a film output assembly 2, and also includes a power assembly 5; the annular film 10 has symmetrically formed initial creases 20 on its sides; as shown in Figure 3. Figure 5 , 6 As shown in Figure 7, the crease generation component 3 includes a face-changing unfolding triangle 31, a wheel frame 32, and a crease wheel 33. The face-changing unfolding triangle 31 includes outwardly opening double triangle plates 311, with the base edges of the double triangle plates 311 fixedly connected to each other, and the apex fixedly connected by a horizontal plate 35. Two wheel frames 32 are respectively connected to the two sides of the horizontal plate 35, and the crease wheel 33 is rotatably connected to the wheel frame 32. The power component 5 is installed on the upper part of the frame component 1, and its output end is rotatably connected to the film output component 2 for convenient traction-type output.

[0033] In this embodiment, the film transport device for strengthening the rigidity of the annular film cross-section, in specific use, after the face-changing unfolding tripod 31 unfolds the annular film 10, a new symmetrical side of the annular film 10 is generated. The crease wheel 33 rolls to open new creases 30 on the new symmetrical side, such as... Figure 11 , 12As shown, the original two creases 20 of the annular film 10 are pre-formed into two symmetrical original creases 20 and two newly added creases 30, for a total of four creases, which improves the cross-sectional rigidity of the annular film 10. During the packaging process, due to its own elasticity, the annular film 10 contracts momentarily upon leaving the central post. At this moment, due to the greatly increased cross-sectional rigidity of the annular film 10 with four creases, it remains stable in the subsequent process when it is opened by the central post, maintains the pre-formed cross-section, and is then detached from the central post and projected, until it enters the predetermined covering position of the packaging container.

[0034] Example 2

[0035] The film transport device for strengthening the rigidity of the annular film cross-section in this embodiment has the same basic structure as in Embodiment 1, with the following differences or improvements: Figure 8 , 9 As shown in Figure 10, the wheel frame 32 is movably connected to the side of the horizontal plate 35. A transverse blind hole is formed on the side of the horizontal plate 35, and a transverse potential energy spring 34 is installed inside the blind hole. The back of the wheel frame 32 is pressed against the outer end of the potential energy spring 34. The potential energy spring 34 applies a suitable force evenly and flexibly to ensure that the annular film 10 is fully expanded, working in conjunction with the crease wheel 33 to achieve the required force for the two newly added creases 30. The base width of the double triangular plate 311 is smaller than that of the annular film 10, facilitating the expansion of the annular film 10 by the double triangular plate 311. The crease wheel 33 is a rubber-coated bearing, such as a polyurethane-coated bearing, which, while ensuring the generation of the new creases 30, applies pressure in a buffering manner to prevent damage to the annular film 10. Figure 1 , 2 As shown in Figures 3 and 4, the film output assembly 2 includes a flattening roller group 21, a guide roller group 22, a power roller group 23, and a constant tension output roller group 24 that are mounted on the frame assembly 1 and sequentially receive the annular film 10. After flattening and guiding the four-fold annular film 10, it is output to the next process under constant tension.

[0036] In this embodiment of the thin film transport device, the annular thin film 10 to be processed is, as follows: Figure 2 As shown, the film is fed in from the bottom direction and flows upward along the crease generating component 3. The double triangular plates 311 expand the original crease 20 into a flat state. The annular film 10 continues to flow upward, and after passing through the rubber-coated bearings on both sides, it applies force outward from the inside of the film, such as... Figure 8 As shown, the annular film 10 transforms into a barrel shape and continues to flow upwards. The symmetrical potential energy springs 34 continuously and flexibly apply appropriate force to ensure the film fully expands, achieving the required force for the two newly added folds 30. The film continues to flow, along... Figure 2 The material is fed out in the top direction as shown, flowing along the film output group 2, and the new crease 30 is completed.

[0037] The film with the newly added crease 30 is then fed into the power roller assembly 23, which consists of the motor, reducer, and other transmission components of the power assembly 5. The power roller assembly 23 continues to pull the film, while the flattening roller assembly 21 presses down on the newly added crease 30, which has been rotated 90 degrees, and continues to convey it. It then passes through the guide roller assembly 22 and the power roller assembly 23 into the constant tension output roller assembly 24. The constant tension assembly, in conjunction with the control system components and the frame assembly 1, outputs the annular film 10 from the top of the device. The annular film 10, after passing through this device, as... Figure 12 As shown, the film roll has four creases. When it is fed into the central column of the conventional labeling process, the central column expands the film roll into a barrel shape. The film is then divided at the central column and projected downwards to cover the outer surface of the container at the tail of the central column. At this time, the four creases of the annular film 10 enhance the rigidity of the film section, greatly improving the stability and centering accuracy of the projection, making the covering action more perfect and allowing for thinner film thicknesses. Compared with the mechanism without the added creases 30, the film covering effect on the container is smoother, the equipment efficiency is higher, and the economy is greatly improved.

[0038] The film transfer device of this embodiment can be added to process equipment that uses rolls of annular film 10 on the post-packaging production line, such as the equipment for wrapping labels on beverage containers. It can effectively reduce the amount of annular film 10 used. Since the film is used continuously in large quantities, reducing the thickness of the film can save at least 20% of the amount of film under the same production conditions.

[0039] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A film conveying device for enhancing the rigidity of annular film cross-sections, comprising a frame assembly, characterized in that, The frame assembly consists of a film input component, a crease generation component, and a film output component, which are installed sequentially from bottom to top. Original creases are made on the symmetrical sides of the annular film; The crease generation component includes a face-changing unfolding triangle, a wheel frame, and a crease wheel; the face-changing unfolding triangle includes two outward-opening triangles, the base edges of which are fixedly connected to each other, and the apex angles are fixedly connected by a horizontal plate; two wheel frames are respectively connected to the two sides of the horizontal plate, and the crease wheel is rotatably connected to the wheel frame.

2. The thin-film transmission device for enhancing the rigidity of the annular thin-film cross-section according to claim 1, characterized in that: The wheel frame is movably connected to the side of the horizontal plate; a transverse blind hole is opened on the side of the horizontal plate, and a transverse potential energy spring is installed in the blind hole, with the back of the wheel frame pressed against the outer end of the potential energy spring.

3. The film transmission device for enhancing the rigidity of the annular film cross-section according to claim 2, characterized in that: The width of the base of the double triangular plate is smaller than that of the annular film.

4. The film transmission device for enhancing the rigidity of the annular film cross-section according to claim 2, characterized in that: The crease wheel is a rubber-coated bearing.

5. The film conveying device for enhancing the rigidity of the annular film cross-section according to any one of claims 1 to 4, characterized in that: It also includes a power unit, which is mounted on the upper part of the frame assembly and whose output end is rotatably connected to the film output assembly.

6. The film conveying device for enhancing the rigidity of the annular film cross-section according to claim 5, characterized in that: The film output assembly includes a flattening roller group, a guide roller group, a power roller group, and a constant tension output roller group, which are mounted on the frame assembly and sequentially receive the annular film.

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