Packaging body suitable for paper film packaging and packaging machine
By shifting the sealing position of the packaging film to the top or bottom surface, the side heat sealing step is eliminated, and the seal is fixed by labeling or pasting, solving the problem that paper film cannot be heat sealed and achieving sealing and efficient packaging of paper film packaging.
Patent Information
- Application Number
- CN202422979529.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing film packaging structures are only suitable for plastic films and cannot be used for paper films because paper films do not have heat shrinkability, leading to heat sealing failure and affecting packaging efficiency and effectiveness.
This method moves the sealing position of the packaging film from the side to the top or bottom, eliminating the need for side heat sealing. The seal is then fixed by labeling or pasting, and is suitable for paper films that do not contain heat-shrinkable materials.
It achieves sealing and fixing of paper film packaging, avoids loose packaging, improves packaging efficiency, and is suitable for paper film and other films that do not contain heat shrinkable materials, without requiring major modifications to existing rotary packaging machines.
Smart Images
Figure CN223495199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, and more specifically to a packaging body and packaging machine suitable for paper film packaging. Background Technology
[0002] Traditional packaging is generally divided into film packaging (see instruction manual attached). Figure 1 As shown in the diagram, taking soft tissue paper as an example, the film packaging generally uses plastic film to wrap the stacked soft tissue paper stacks. The packaging process is as follows: the whole roll of plastic packaging film is cut into individual packaging films and conveyed to the front of the soft tissue paper stack's pushing path. Then, the soft tissue paper stack is pushed to the film wrapping station. During the pushing process, the soft tissue paper stack moves against the packaging film on its conveying path to the film wrapping station. Under the limit of the upper and lower end faces of the film wrapping station, the packaging film wraps around the front end face, upper end face, and lower end face of the soft tissue paper stack. Subsequently, through the film insertion mechanism, the soft tissue paper stack is further packaged. The top edge of the packaging film is folded down, and the bottom edge is folded up, so that the top and bottom edges of a single piece of packaging film overlap. Then, a hot-sealing mechanism is used to hot-seal the overlapping part of the top and bottom edges of the packaging film, so that the top and bottom edges are hot-sealed together, completing the wrapping of the soft tissue stack. This means that a single piece of packaging film is wrapped around the front, rear, top, and bottom surfaces of the soft tissue stack. After that, the wrapped soft tissue stack is conveyed to the end-face forming mechanism, where the two end faces (left and right) of the soft tissue stack are formed and hot-sealed, finally forming the soft tissue packaging body.
[0003] Existing film packaging structures are only suitable for plastic films and not for paper films. This is because during the entire packaging process, the overlapping parts of the top and bottom edges of the plastic packaging film need to be heat-sealed using the heat shrinkage property of the plastic packaging film. If the plastic film is replaced with paper film, the paper film does not have heat shrinkage property, so it is impossible to heat seal the top and bottom edges. If it is not sealed, the packaging will fall apart.
[0004] The existing film packaging structure requires hot-sealing the overlapping parts after folding down and up the top and bottom edges of the packaging film, which affects some packaging efficiency. Utility Model Content
[0005] To overcome the defects and shortcomings of the existing technology, this utility model provides a packaging body and packaging machine suitable for paper film packaging. The purpose of this utility model is to provide a new packaging body structure that eliminates the need for heat sealing the overlapping parts of the packaging film without causing the package to fall apart. It is also applicable to paper films that do not contain heat-shrinkable materials. Compared with existing film packaging structures, the packaging body structure provided by this utility model wraps one edge of the packaging film around the other edge after wrapping the packaged material, and the sealing position is set on the upper or lower end face of the packaging body. This utility model moves the sealing position from the side end face to the upper or lower end face and wraps the other edge, which can eliminate the side sealing step. The sealing can be completed by labeling. On the one hand, it can eliminate the heat sealing step, and on the other hand, it can be used on paper films that do not contain heat-shrinkable materials.
[0006] To address the problems existing in the prior art, the present invention is achieved through the following technical solution.
[0007] The first aspect of this utility model provides a packaging body suitable for paper film packaging. The packaging body is formed by wrapping the packaging film around the packaged object. The packaging film includes a first side, a second side, a first edge, and a second edge. After the packaging film is wrapped around the packaged object, the first side and the second side are respectively located on the two end faces of the packaged object. The first edge is located on the front or rear end face of the packaged object. After the second edge wraps around the first edge, it is located on the upper or lower end face of the packaged object adjacent to the end face where the first edge is located.
[0008] A further preferred embodiment is that the second edge is flush with the centerline of the end face it is located on.
[0009] More preferably, the second edge is located to the left or right of the centerline of its end face.
[0010] More preferably, the opening formed between the second edge and the film covering the end face of the packaged item where the second edge is located is fixed by a label.
[0011] More preferably, the first and second side edges and their film located on both ends of the packaged item are wrapped around the side ends of the packaged item after being folded and shaped.
[0012] More preferably, the film on the side end of the packaged item is sealed by applying or spraying adhesive on the first and second sides of the film.
[0013] The second aspect of this utility model provides a packaging machine for packaging materials to form the packaging body described in the first aspect. The packaging machine includes a film stretching mechanism, a material pushing mechanism, a film forming turntable, a first folding plate, a second folding plate, and an output mechanism; wherein...
[0014] A film-pulling mechanism is used to convey packaging film onto the push path of the packaged item;
[0015] The pushing mechanism is used to push the packaged item toward the direction of the packaging film, and after the packaged item contacts the packaging film, it continues to push the packaged item and the packaging film into the film forming station of the film forming turntable;
[0016] The film forming turntable has several film forming stations and is driven to rotate by the turntable drive mechanism. The film forming turntable receives the packaged item and packaging film pushed by the pushing mechanism. Under the constraints of the film forming stations, the packaging film covers the front end, upper end and lower end of the packaged item.
[0017] The first folding plate is used to fold the first edge of the packaging film toward the rear end face of the packaged item, so that the film body of the first edge covers the rear end face of the packaged item.
[0018] When the turntable drive mechanism drives the film forming turntable to rotate, the second edge of the packaging film is folded toward the rear end face of the packaged item under the limitation of the second folding plate, and covers the rear end face of the packaged item and the first edge.
[0019] When the packaged item and the packaging film are rotated to the output mechanism, the second edge of the packaging film is folded toward the lower end face of the packaged item and covers the lower end face of the packaged item, thus completing the wrapping of the packaged item and forming the packaging body described in the first aspect above.
[0020] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0021] 1. Compared to existing packaging structures, the packaging body proposed in this utility model places the sealing position of the packaging film, which was originally used for side heat sealing, on the upper or lower surface of the packaged item. This packaging structure prevents the package from falling apart even if side heat sealing is not performed during the wrapping process. On the one hand, it eliminates the need for side heat sealing; on the other hand, it facilitates the use of edge-sealing or adhesive methods to fix the seal formed after wrapping the packaging film. It is applicable to paper films that do not contain heat-shrinkable materials and solves the problem of heat sealing failure caused by the packaging film material.
[0022] 2. The new packaging structure provided by this utility model only requires that the length of each packaging film be controlled to be longer (compared to the existing traditional packaging structure) when cutting the packaging film. When applied to a rotary packaging machine, it does not require major modifications to the existing rotary packaging machine to achieve the formation of the packaging structure of this utility model. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of a traditional packaging structure;
[0024] Figure 2 Schematic diagram of the packaging structure proposed in this utility model Figure 1 ;
[0025] Figure 3 Schematic diagram of the packaging structure proposed in this utility model Figure 2 ;
[0026] Figure 4 Schematic diagram of the packaging structure proposed in this utility model Figure 3 ;
[0027] Figure 5 A schematic diagram of a packaging machine for wrapping and packaging items to form the packaging body proposed in this utility model;
[0028] Reference numerals: 1. First edge, 2. Second edge, 3. Film body, 4. Packaged item, 5. Label, 6. Front end face, 7. Rear end face, 8. Top end face, 9. Bottom end face, 10. Side end face, 11. Film pulling mechanism, 12. Pushing mechanism, 13. Film forming turntable, 14. First folding plate, 15. Second folding plate, 16. Output mechanism, 17. Film forming station. Detailed Implementation
[0029] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] Traditional film packaging, refer to the instruction manual attached. Figure 1 As shown, the wrapping process is as follows: The packaged item 4 moves to the film wrapping station against the packaging film on its conveying path. Under the limitation of the upper and lower end faces of the film wrapping station, the packaging film wraps around the front end face 6, upper end face 8, and lower end face 9 of the packaged item 4. Subsequently, through the film insertion mechanism, the first edge 1 of the packaging film is folded downward and the second edge 2 of the packaging film is folded upward, so that the first edge 1 and the second edge 2 of a single packaging film partially overlap. Then, the hot-sealing mechanism is used to hot-seal the overlapping part of the first edge 1 and the second edge 2 of the packaging film, so that the first edge 1 and the second edge 2 overlap and are hot-sealed together, completing the wrapping of the packaged item 4. After the wrapping is completed, after end face corner forming, it forms as shown in the attached figure. Figure 1 The packaging structure shown.
[0031] The traditional packaging structure described above requires side heat sealing, where the overlapping parts of the first edge 1 and the second edge 2 are heat sealed together to complete the wrapping of the packaged item 4. If heat sealing is not performed, the package will come apart, which will affect the subsequent end-face corner forming process and prevent it from proceeding smoothly.
[0032] This embodiment provides a packaging body suitable for paper film packaging, as shown in the attached instruction manual. Figure 2 and attached Figure 3 As shown, the packaging body is formed by wrapping the packaged item 4 with a packaging film. The packaging film includes a first side, a second side, a first edge 1, and a second edge 2. After the packaging film is wrapped around the packaged item 4, the first side and the second side are located on the two end faces 10 of the packaged item 4, respectively. The first edge 1 is located on the front end face 6 or the rear end face 7 of the packaged item 4. After the second edge 2 wraps around the first edge 1, it is located on the upper end face 8 or the lower end face 9 of the packaged item 4 adjacent to the end face where the first edge 1 is located.
[0033] Compared to traditional packaging structures, the sealing position of the packaging film, which was originally used for side heat sealing, is now located on the upper surface 8 or lower surface 9 of the packaged item 4. This packaging structure prevents the package from falling apart even if side heat sealing is not performed during the wrapping process. On the one hand, the side heat sealing step can be omitted; on the other hand, it facilitates securing the seal formed after wrapping the packaging film using edge-sealing or adhesive methods. It is suitable for paper films that do not contain heat-shrinkable materials and solves the problem of heat sealing failure caused by the packaging film material.
[0034] As an example of this embodiment, when plastic film packaging is still used, the first edge 1 of the packaging structure provided in this embodiment and the film 3 covering the first edge 1 can be side-sealed. This can be set according to packaging requirements. However, when side-sealing, even if the first edge 1 and the film 3 covering the first edge 1 are not sealed together, it will not affect the subsequent end face forming.
[0035] As another example of this embodiment, the packaging body provided in this embodiment is particularly suitable for paper film packaging. The paper film does not contain heat-shrinkable material and the two layers of film cannot be heat-sealed together. The packaging body provided in this embodiment does not need to be heat-sealed, so it is more suitable for paper film or other films that do not contain heat-shrinkable material.
[0036] Refer to the instruction manual appendix Figure 2 and attached Figure 3 As shown, the second edge 2 of the packaging body can be set on the upper end face 8 or the lower end face 9. It can be adjusted according to the position of the packaging film, and this position change is relatively easy.
[0037] To further increase the tightness of the packaging, a preferred embodiment is that the second edge 2 is flush with the center line of its end face. This method not only increases the tightness of the packaging, but also makes it easier to apply the label 5 when sealing and fixing the second edge 2.
[0038] As another example of this embodiment, the second edge 2 is located to the left or right of the centerline of its end face. The position of the second edge after wrapping can be adjusted according to the labeling position of the labeling mechanism, and the adjustment is achieved by controlling the length of the packaging film.
[0039] Refer to the instruction manual appendix Figure 4 As shown, a labeling operation is performed during end-face forming. Labels 5 are affixed to the second edge 2 and the film 3 covering it to fix the second edge 2. The first and second side edges and their film 3 located on both sides of the end face 10 of the packaged item 4 are wrapped around the side end face of the packaged item 4 after being folded and formed.
[0040] As an example, the film 3 on the side end face of the packaged item 4 is sealed by applying or spraying adhesive on the first and second sides of the film 3.
[0041] As a preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 5As shown, this embodiment provides a packaging machine for packaging materials to form the packaging body described in the first aspect. This packaging machine can employ an existing rotary film packaging machine. Specifically, the packaging machine includes a film pulling mechanism 11, a pushing mechanism 12, a film forming turntable 13, a first folding plate 14, a second folding plate 15, and an output mechanism 16. The film pulling mechanism 11 is used to convey the packaging film onto the pushing path of the packaged item 4. The pushing mechanism 12 is used to push the packaged item 4 towards the direction of the packaging film, and after the packaged item 4 contacts the packaging film, it continues to push the packaged item 4 and the packaging film into the film forming station 17 of the film forming turntable 13. The film forming turntable 13 has several film forming stations 17 and is driven to rotate by a turntable drive mechanism. The film forming turntable 13 receives the packaged item 4 and the packaging film pushed by the pushing mechanism 12, and under the constraint of the film forming stations 17, the packaging film covers the packaged item 4. On the front end face 6, upper end face 8, and lower end face 9 of the packaged item 4, a first folding plate 14 is used to fold the first edge 1 of the packaging film toward the rear end face 7 of the packaged item 4, so that the film body 3 of the first edge 1 covers the rear end face of the packaged item 4; when the turntable drive mechanism drives the film forming turntable 13 to rotate, the second edge 2 of the packaging film is folded toward the rear end face 7 of the packaged item 4 under the limitation of the second folding plate 15, and covers the rear end face 7 and the first edge 1 of the packaged item 4; when the packaged item 4 and the packaging film are output by the film forming turntable 13 to the output mechanism 16, the second edge 2 of the packaging film is folded toward the lower end face 9 of the packaged item 4, and covers the lower end face 9 of the packaged item 4, thus completing the wrapping of the packaged item 4 and forming the packaging body described in the first aspect above.
[0042] As an example of this embodiment, the film pulling mechanism 11, the material pushing mechanism 12, the film forming turntable 13, the first folding plate 14, the second folding plate 15, and the output mechanism 16 described above are all existing packaging machine structures. That is, the packaging body structure newly provided by this utility model only needs to control the length of each packaging film to be longer (compared to the existing traditional packaging body structure) when cutting the packaging film. When applied to a turntable packaging machine, it does not require major modifications to the existing turntable packaging machine to achieve the formation of the packaging body of this utility model.
Claims
1. A packaging body suitable for paper film packaging, said packaging body being formed by wrapping a packaging film around a packaged item (4), said packaging film comprising a first side, a second side, a first edge (1), and a second edge (2), characterized in that: After the packaging film is wrapped around the packaged item (4), the first side and the second side are located on the two end faces (10) of the packaged item (4) respectively. The first edge (1) is located on the front end face (6) or the rear end face (7) of the packaged item (4). The second edge (2) wraps around the first edge (1) and is located on the upper end face (8) or the lower end face (9) of the packaged item (4) adjacent to the end face of the first edge (1). The opening formed between the second edge (2) and the film (3) wrapped on the end face of the packaged item (4) where the second edge (2) is located is fixed by a label (5). The first side and the second side and their film (3) located on the two end faces (10) of the packaged item (4) are wrapped around the side end face of the packaged item (4) after being folded. The film (3) on the side end face of the packaged item (4) after being folded is sealed by applying or spraying adhesive on the film (3) of the first side and the second side.
2. The packaging body suitable for paper film packaging as described in claim 1, characterized in that: The second edge (2) is flush with the center line of the end face it is located on.
3. The packaging body suitable for paper film packaging as described in claim 1, characterized in that: The second edge (2) is located to the left or right of the centerline of its end face.
4. A packaging machine for packaging materials to form a packaging body suitable for paper film packaging as described in any one of claims 1-3, characterized in that: It includes a film stretching mechanism (11), a material pushing mechanism (12), a film forming turntable (13), a first folding plate (14), a second folding plate (15), and an output mechanism (16). A film-pulling mechanism (11) is used to convey the packaging film onto the push path of the packaged item (4); The pushing mechanism (12) is used to push the packaged item (4) in the direction of the packaging film, and after the packaged item (4) contacts the packaging film, it continues to push the packaged item (4) and the packaging film into the film forming station (17) of the film forming turntable (13); The film forming turntable (13) has several film forming stations (17) and is driven to rotate by the turntable drive mechanism. The film forming turntable (13) receives the packaged item (4) and packaging film pushed by the pushing mechanism (12). Under the restriction of the film forming station (17), the packaging film covers the front end face (6), upper end face (8) and lower end face (9) of the packaged item (4). The first folding plate (14) is used to fold the first edge (1) of the packaging film toward the rear end face (7) of the packaged item (4), so that the film body (3) of the first edge (1) covers the rear end face of the packaged item (4). When the turntable drive mechanism drives the film forming turntable (13) to rotate, the second edge (2) of the packaging film is folded toward the rear end face (7) of the packaged item (4) under the limitation of the second folding plate (15), and covers the rear end face (7) and the first edge (1) of the packaged item (4). When the packaged item (4) and the packaging film are rotated to the output mechanism (16) for output, the second edge (2) of the packaging film is folded toward the lower end face (9) of the packaged item (4) and covers the lower end face (9) of the packaged item (4), thus completing the wrapping of the packaged item (4) and forming the packaging body suitable for paper film as described in any one of claims 1-3.