Annular film stock bin for strengthening rigidity of section of film

Abstract

The utility model discloses an annular film stock bin capable of strengthening the rigidity of the section of a film, and belongs to the technical field of energy conservation and environmental protection for saving the consumption of packaging films. The tray assembly and the thin film caching assembly are installed on the front face and the side face of the main machine frame, and the crease forming devices and the formed thin film output assembly are installed on the side face and the top face of the thin film caching assembly. The crease forming device comprises a side edge rack, and a film input assembly, a crease generating assembly and a film output roller set are sequentially installed on the side edge rack from bottom to top. 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. According to the utility model, the rigidity of the section of the annular film is improved, and the problems that the annular film is not labeled in place and the label is wasted in the packaging process of the labeling machine are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy conservation and environmental protection for saving the amount of packaging film, and more specifically to an annular film silo for strengthening the rigidity of the film cross-section. Background Art

[0002] Generally, a labeler makes an annular film label into a roll shape and transports it to the central column assembly of the labeler. The central column expands the annular film label into a barrel shape, and performs fixed-length segmentation into individual labels. The individual labels are projected to a set position on the body of the container, covering the outer surface of the container, and an external force is applied to make the label shrink and closely adhere to the outer surface of the container, completing the container labeling function of the labeler.

[0003] In a traditional silo in the annular film label processing equipment on the post-packaging labeling production line, its general functions are storing and replenishing the annular film label, and feeding the annular film label to the labeler. The labeler needs to continuously use the annular film label. Sometimes, due to the thin thickness of this film, the rigidity of the annular cross-section is poor. Sometimes, when encountering containers with large shoulder angles and poor guiding (for example: cylindrical containers, where there is no gradual change but a sudden change between the head and the body of the container, that is, there is no transition inclined plane), the shoulder of the container is prone to jamming the film at this time, and the projection action cannot smoothly make the annular label descend to cover the predetermined position of the container, resulting in the labeling action not being smoothly completed. After analysis, for the existing annular film label material, because the incoming material is in a roll shape, as Figure 14 shown, there are two symmetrical original creases, that is, there are two original creases with pre-creases when the annular material enters the post-packaging equipment; when applied to containers with large shoulder angles and poor guiding, such as cylindrical containers, square bottles, elliptical bottles and other special-shaped bottles, the self-elasticity of the film will cause it to shrink by a certain amount when leaving the central column for a moment, and the annular film cross-section becomes oval. The mismatch margin between the film cross-section and the container cross-section increases, and the sharp corner of the container will block a certain section or point of the film, and the film cannot smoothly reach the predetermined covering position, thus resulting in the labeling action not being smoothly completed; if economic methods such as reducing the equipment speed and increasing the film thickness are used to deal with it, the requirements for special containers, thinner films and higher operating speeds cannot be met, and thus problems such as film waste, incomplete packaging affecting the labeling and packaging quality, and low production efficiency will occur. Content of the Utility Model

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] In response to the above-mentioned problems of annular film labels during the sleeve labeling packaging process of the existing labeling machine, the utility model provides an annular film material silo with enhanced film cross-section rigidity. On the basis of ensuring the two major functions of storing and adding annular film labels, the original two folds of the annular film are preformed into four folds, thereby achieving the purpose of improving the rigidity of the annular film cross-section and facilitating accurate labeling production by the sleeve labeling machine.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0008] A ring-shaped film silo for strengthening the rigidity of the film cross-section comprises a main frame, a material tray assembly and a film buffer assembly respectively mounted on the front and side of the main frame, and a crease forming device and a formed film output assembly respectively mounted on the side and top of the film buffer assembly; the crease forming device comprises a side frame and a film input assembly, a crease generating assembly and a film output roller group sequentially mounted on the side frame from bottom to top; original creases are provided on the symmetrical sides of the ring-shaped film; the crease generating assembly comprises a face-changing and unfolding tripod, a wheel frame and a crease wheel; the face-changing and unfolding tripod comprises outward-opening double triangle plates, the bottom edges of the double triangle plates are fixedly connected to each other, and the top angles are fixedly connected by a transverse plate; two wheel frames are respectively connected to the two side faces of the transverse plate, and the crease wheel is rotatably connected to the wheel frame.

[0009] In specific use, the annular film roll is installed on the material tray mounting seat, and the film is guided out from the material tray mounting seat and buffered in the film buffer assembly. After the film comes out of the film buffer assembly, it continues to be transported to the crease forming device. The face-changing and unfolding tripod in the crease forming device changes the face of the annular film and unfolds it to generate an annular film with new symmetrical sides. The crease wheel rolls the new symmetrical sides to create new creases, and pre-forms the two creases of the original annular film into four creases, thereby improving the cross-sectional rigidity of the annular film. The various components work together to strengthen the cross-sectional rigidity of the annular film during the storage and transportation of the annular film; and then the formed film output assembly transmits it to the labeling process of the labeling machine. During the labeling process, due to its own elasticity, the annular film shrinks in an instant when it leaves the center column of the labeling machine. At this time, due to the greatly increased cross-sectional rigidity of the annular film, when it is stretched by the center column, the pre-formed cross-section is maintained, and then it is projected away from the center column. The state of the pre-formed cross-section is stable until it enters the predetermined labeling covering position of the packaging container.

[0010] The annular film silo further strengthens the rigidity of the film cross section. The tray assembly includes tray mounting seats installed side by side on the front of the main frame. Each tray mounting seat can be equipped with a film roll to store sufficient film material.

[0011] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The film buffer assembly includes a buffer rack fixedly connected to the side of the main frame and a buffer roller group connected to the buffer rack. The film material is wound around each roller in an S shape to temporarily store enough film material.

[0012] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The buffer roller group includes a parallel buffer fixed roller group and a buffer moving roller group; a vertical slide rail is also fixedly connected to the buffer rack, and a slider is slidably connected to the vertical slide rail; the buffer fixed roller group is fixedly connected to the buffer rack, and the buffer moving roller group is fixedly connected to the slider; the buffer moving roller group moves within the area set by the buffer rack under the coordination of the control unit to form a stable tension and appropriate storage capacity for the film.

[0013] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The wheel frame is movably connected to the side of the cross plate; a horizontal blind hole is opened on the side of the cross plate, and a horizontal potential energy spring is installed in the blind hole. The back of the wheel frame presses against the outer end of the potential energy spring; the potential energy spring evenly and flexibly applies an appropriate force to ensure that the ring-shaped film is fully expanded, and cooperates with the crease wheel to achieve the strength of the two new creases required for forming.

[0014] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The bottom width of the double triangular plate is smaller than that of the ring-shaped film, which is convenient for the double triangular plate to expand the ring-shaped film.

[0015] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The crease wheel is a rubber-coated bearing, which can buffer the pressure while ensuring the generation of new creases to avoid damaging the ring-shaped film.

[0016] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. It also includes a power assembly, which is installed on the upper part of the side frame, and its output end is rotationally connected to the film output roller group for convenient traction output.

[0017] A ring-shaped film silo for further strengthening the rigidity of the film cross-section. The film output roller group includes a flattening roller group, a guiding roller group, a power roller group, and a constant-tension output roller group installed on the side frame and sequentially receiving the ring-shaped film. After flattening and guiding the four-crease ring-shaped film, it is output to the next process under a constant tension state.

[0018] 3. Beneficial effects

[0019] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0020] The annular film silo for strengthening the cross-sectional rigidity of the utility model completes the work of strengthening the cross-sectional rigidity of the film during the storage and transportation of the annular film; when applied to a square bottle or other special-shaped containers with a relatively sharp angle at the shoulder transition cross-section, that is, the transition from the head to the body is sudden, the annular film passing through this device has four creases, and its cross-sectional rigidity is greatly increased, making it easier to cover the corresponding cross-sectional angles of the container. On the one hand, it can prevent the film from spreading at the central column, leaving the lowest section of the central column, and deviating from the predetermined center when being projected. On the other hand, it can be more smoothly projected into the container covering position; for thinner films, increasing to four creases can enhance the cross-sectional rigidity when the film spreads, keep the rigid sharp corners open for a longer time, and can complete the label sleeving more smoothly and enter the position to cover the container more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Isometric view of the annular film silo for strengthening the cross-sectional rigidity of the specific embodiment;

[0022] Figure 2 For Figure 1 Front view;

[0023] Figure 3 For Figure 2 Side view;

[0024] Figure 4 Isometric view of the crease forming device of the specific embodiment;

[0025] Figure 5 For Figure 4 Front view;

[0026] Figure 6 For Figure 5 Side view;

[0027] Figure 7 Isometric view of the crease forming device of the specific embodiment after removing the side frame;

[0028] Figure 8 Schematic diagram of the surface-changing unfolding tripod structure of the specific embodiment;

[0029] Figure 9 For Figure 8 Top view structure diagram;

[0030] Figure 10 For Figure 8 Side view structure diagram;

[0031] Figure 11 For Figure 12 Top view structure diagram;

[0032] Figure 12 For Figure 9 A-A sectional view schematic diagram;

[0033] Figure 13 for Figure 12 Schematic diagram of the structure after the B part is enlarged;

[0034] Figure 14 It is a schematic diagram of the cross-sectional structure of an existing annular membrane;

[0035] Figure 15 This is a top view of a four-fold annular film stretched open by a central column.

[0036] In the figure: 1-main frame; 4-film input assembly; 5-power assembly; 8-formed film output assembly; 9-crease forming device; 10-annular film; 11-side frame; 20-original crease; 30-new crease;

[0037] 2-film output roller group; 21-flattening roller group; 22-guide roller group; 23-power roller group; 24-constant tension output roller group;

[0038] 3-crease generating assembly; 31-face changing and unfolding tripod; 32-wheel frame; 33-crease wheel; 34-potential energy spring; 35-cross plate; 311-double triangular plate;

[0039] 6- tray assembly; 61- tray mounting base;

[0040] 7-film cache assembly; 70-cache rack; 71-cache fixed roller group; 72-cache movable roller group; 73-vertical slide rail; 74-slider. DETAILED DESCRIPTION

[0041] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0042] Example 1

[0043] The annular film silo of the embodiment of the invention strengthens the rigidity of the film cross section, such as Figure 1 、 2 As shown in Figure 3, it includes a main frame 1, a material tray assembly 6 and a film buffer assembly 7 respectively mounted on the front and side of the main frame 1, and a crease forming device 9 and a formed film output assembly 8 respectively mounted on the side and top of the film buffer assembly 7; the material tray assembly 6 includes material tray mounting seats 61 mounted side by side on the front of the main frame, and each material tray mounting seat 61 can be fitted with a film roll to store enough film material. The film buffer assembly 7 includes a buffer rack 70 fixedly connected to the side of the main frame 1, and a buffer roller group connected to the buffer rack 70. The film material is wound in an S shape on each roller of the buffer roller group to temporarily store enough film material. As shown in Figure 3, it includes a material tray assembly 6 and a film buffer assembly 7 respectively mounted on the front and side of the main frame 1, and a film buffer assembly 70. Figure 4 、 5As shown in FIG6 , the crease forming device 9 includes a power assembly 5 and a side frame 11, and the side frame 11 is sequentially installed with a film input assembly 4, a crease generating assembly 3 and a film output roller assembly 2 from bottom to top; Figure 14 As shown, the annular film 10 has original folds 20 on its symmetrical sides; Figure 8 、 9 As shown in Figures 10 and 11, the crease generating assembly 3 includes a face-changing unfolding tripod 31, a wheel frame 32, and a crease wheel 33; the face-changing unfolding tripod 31 includes an outward-opening double triangular plate 311, the bottom edges of the double triangular plates 311 are fixedly connected to each other, and the top angles are fixedly connected via a transverse plate 35; the two wheel frames 32 are respectively connected to the two side surfaces of the transverse plate 35, and the crease wheel 33 is rotatably connected to the wheel frame 32. The power assembly 5 is mounted on the upper part of the side frame 11, and its output end is rotatably connected to the film output roller group 2 to facilitate traction-type output. The crease forming device 9 has a dual function: one is to prevent the ring-shaped label 10 from deviating from the center position when the label is applied; the other is that for thinner films, the addition of two creases significantly enhances the rigidity of the film, making it easier to complete the label application.

[0044] In the annular film silo of this embodiment, in specific use, the annular film roll is mounted on the tray mounting seat 61, and the annular film 10 is guided out from the tray mounting seat 61, and a portion of the film material is cached in the film buffer assembly 7. After the film comes out of the film buffer assembly 7, it is continuously transported to the crease forming device 9. The face-changing unfolding tripod 31 in the crease forming device 9 changes the face of the annular film 10 and unfolds it to generate an annular film 10 with a new symmetrical side. The crease wheel 33 rolls the new symmetrical side to open a new crease 30, such as Figure 14 、 15 As shown, the two original creases 20 of the original annular film 10 are preformed into two symmetrical original creases 20 and two newly added creases 30, totaling four creases, thereby improving the cross-sectional rigidity of the annular film 10; the various components cooperate to strengthen the cross-sectional rigidity of the annular film during the storage and transportation of the annular film; and the formed film output assembly then transmits the film to the sleeve labeling process of the sleeve labeling machine. During the sleeve labeling process, the annular film 10 shrinks at the moment of leaving the central column of the sleeve labeling machine due to its own elasticity. At this time, due to the greatly increased cross-sectional rigidity of the annular film 10 with four creases, the preformed cross-sectional state of the annular film 10 is stabilized when it is stretched open by the sleeve labeling central column in the subsequent process, and then when it is projected away from the sleeve labeling central column until it enters the predetermined covering position of the packaging container.

[0045] Example 2

[0046] The annular film silo with enhanced film cross-section rigidity in this embodiment has the same basic structure as that in embodiment 1, except that: Figure 1 、 2As shown in FIGS. 3, the buffer roller group includes a side-by-side buffer fixed roller group 71 and a buffer movable roller group 72; a vertical slide rail 73 is also fixedly connected to the buffer rack 70, and a slider 74 is slidably connected to the vertical slide rail; the buffer fixed roller group 71 is fixedly connected to the buffer rack 70, and the buffer movable roller group 72 is fixedly connected to the slider; the buffer movable roller group 72 moves within the area set by the buffer rack 70 under the coordination of the control unit, and the control unit uses existing electric control and power mechanisms; the distance between the buffer fixed roller group 71 and the buffer movable roller group 72 is adjusted by the slider 74. The larger the distance, the greater the temporary storage amount of the film, and the film tension can be controlled by adjusting the distance, forming a stable tension and a suitable storage amount for the film.

[0047] As Figure 11 、 12 、13, the wheel frame 32 is movably connected to the side of the cross plate 35; a horizontal blind hole is provided on the side of the cross plate 35, and a horizontal potential energy spring 34 is installed in the blind hole. The back of the wheel frame 32 presses against the outer end of the potential energy spring 34; the potential energy spring 34 uniformly and flexibly applies an appropriate force to ensure that the annular film 10 is fully expanded, and cooperates with the crease wheel 33 to achieve the force of the two new creases 30 required for forming. The bottom width of the double triangular plate 311 is smaller than that of the annular film 10, which facilitates the double triangular plate 311 to expand the annular film 10. The crease wheel 33 is a rubber-coated bearing, such as a polyurethane rubber-coated bearing, which applies a buffered pressure while ensuring the generation of the new crease 30 to avoid damaging the annular film 10. As Figure 4 、 5 、6, 7, the film output roller group 2 includes a flattening roller group 21, a guiding roller group 22, a power roller group 23, and a constant-tension output roller group 24 installed on the side frame 11 and sequentially receiving the annular film 10. After flattening and guiding the four-crease annular film 10 in sequence, it is output to the next process under a constant tension state.

[0048] For the annular film silo of this embodiment, the annular film 10 to be processed is fed in from the bottom direction of the side frame 11 as shown in Figure 5 , flows upward along the crease generation assembly 3, and the double triangular plate 311 expands the original crease 20 into a flat state. The annular film 10 continues to flow upward. After the two rubber-coated bearings on both sides apply force outward inside the film, as shown in Figure 10 , the annular film 10 becomes barrel-shaped, as shown in Figure 11 , continues to flow upward. The symmetric potential energy springs 34 always uniformly and flexibly apply an appropriate force to ensure that the film is fully expanded and reach the force of the two new creases 30 required for forming. The film continues to flow and is sent out in the top direction as shown in Figure 5 , flows along the film output group 2, and the new crease 30 is completed.

[0049] The film with the newly added fold 30 is now fed into the power roller group 23 composed of the motor, reducer and other related transmission parts of the power assembly 5. The power roller group 23 continues to pull the film, and the flattening roller group 21 continues to press the newly added fold 30 that has been turned 90 degrees and continues to transport it. It passes through the guide roller group 22 and the power roller group 23 and enters the constant tension output roller group 24; the constant tension assembly cooperates with the relevant components of the control unit and the side frame 11, and the annular film 10 is output from the top of the device. The annular film 10 passing through this device, such as Figure 15 As shown, the film 10 has four folds. When it is transported to the center column of the conventional sleeve labeling process, the center column stretches the annular film 10 into a barrel shape, completes the conventional segmentation at the center column position, and then is projected downward to the tail of the center column to cover the outer surface of the container. At this time, the four folds of the annular film 10 enhance the rigidity of the film cross section, greatly improving the stability and centering accuracy of the projection, making the covering action more perfect and allowing for thinner film thickness. Compared with the sleeve labeling machine without the newly added fold 30, the film covers the container more smoothly, the equipment efficiency is higher, and the economy is greatly improved.

[0050] The annular film silo of this embodiment can be added to the labeling process of a labeling machine using an annular film 10 roll, such as equipment for the sleeve wrapping of beverage container labels. This effectively reduces the amount of annular film 10 used. Since film is used continuously and in large quantities, reducing its thickness can, according to calculations, save at least 20% of film volume under the same production conditions. Furthermore, the entire silo device is compact and easy to install, and can be integrated into the main frame 1 according to customer needs. Each mechanism can be independently driven by a servo motor, and film feeding can be coordinated according to the specific labeling effect of the labeling machine.

[0051] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. An annular film silo for enhancing the cross-sectional rigidity of a film, characterized in that, It includes a main frame, a tray assembly and a film buffer assembly installed on the main frame, and a crease forming device and a formed film output assembly installed on the film buffer assembly; the crease forming device includes a side frame and a film input assembly, a crease generation assembly and a film output roller group sequentially installed on the side frame from bottom to top; Original creases are formed on the symmetric sides of the annular film; The crease generation assembly includes a face-changing unfolding tripod, a wheel frame and a crease wheel; the face-changing unfolding tripod includes outward-opening double triangular plates, the bottom edges of the double triangular plates are fixedly connected to each other, and the top angles are fixedly connected through a cross plate; two wheel frames are respectively connected to the two side faces of the cross plate, and the crease wheel is rotatably connected to the wheel frame.

2. The annular thin-film silo for strengthening the cross-sectional rigidity of a thin film according to claim 1, wherein: The tray assembly includes tray mounting seats arranged side by side on the front of the main frame.

3. The annular thin-film silo for enhancing the cross-sectional rigidity of the thin film according to claim 1, characterized in that: The film buffer assembly includes a buffer frame fixedly connected to the side of the main frame and a buffer roller group connected to the buffer frame.

4. The annular thin-film silo for strengthening the cross-sectional rigidity of the thin film according to claim 3, wherein: The buffer roller group includes a buffer fixed roller group and a buffer moving roller group; a vertical slide rail is also fixedly connected to the buffer frame, and a slider is slidably connected to the vertical slide rail; the buffer fixed roller group is fixedly connected to the buffer frame, and the buffer moving roller group is fixedly connected to the slider.

5. The annular thin-film silo for strengthening the cross-sectional rigidity of the thin film according to claim 3, wherein: The wheel frame is movably connected to the side face of the cross plate; a horizontal blind hole is formed in the side face of the cross plate, a horizontal potential energy spring is installed in the blind hole, and the back of the wheel frame is pressed against the outer end of the potential energy spring.

6. The annular thin-film silo for strengthening the cross-sectional rigidity of the thin film according to claim 4, wherein: The crease wheel is a rubber-coated bearing.

7. The annular thin-film silo for strengthening the cross-sectional rigidity of the thin film according to claim 4, characterized in that: It also includes a power assembly, which is installed on the upper part of the side frame, and its output end is rotatably connected to the film output roller group.

8. The annular thin-film silo for strengthening the cross-sectional rigidity of a thin film according to any one of claims 1-7, characterized in that: The film output roller group includes a flattening roller group, a guiding roller group, a power roller group and a constant tension output roller group installed on the side frame and sequentially receiving the annular film.

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