Prefabricated film rolling structure convenient to use
Through the design of the sealing component on the curl film, the problem of cumbersome implantation of seal components in the production of existing sealing bags is solved, and the batch efficient production and good sealing effects are achieved.
Patent Information
- Application Number
- CN202420831530.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-22
AI Technical Summary
When making existing sealing bags, the implantation process of sealing components is complicated, the production efficiency is low, and it is difficult to achieve mass efficient production.
Design a convenient prefabricated film structure, pre -set seal components on the curl film, including the first seal, the second sealing strip, the hot sealing edge and the opening side, through the hook -shaped card bar self -locking seal and multiple sealing sealing Structure, combined with the design of non -dry glue and tearing stickers to ensure the fixing and sealing effect of seal components.
A sealing bag with repeated sealing functions is achieved in batches, which improves production efficiency, ensured the efficiency of the sealing effect and facilitated the opening of repeated seals.
Smart Images
Figure CN222387742U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of sealed bags for packaging, and relates to a roll film structure that can be used to make sealed bags, and in particular to a convenient prefabricated roll film structure. Background Art
[0002] A sealed bag is a plastic bag with a sealing function, usually made of materials such as polyethylene (PE) or polypropylene (PP). It has a sealable opening that can effectively protect the internal items from the intrusion of moisture, dust, bacteria, oxygen and other external pollutants.
[0003] Existing sealed bags usually have designs that are easy to open and close, such as zipper seals, self-sealing mouths, etc., so that users can easily open and close the bag for repeated sealing and use. When making such sealed bags with repeated sealing functions, it is usually necessary to first unwind the ordinary roll film and heat-seal it to make a sealed bag, and then implant a zipper or sealing strip at the opening of the sealed bag. The implantation process of this sealing component is relatively cumbersome, and each sealed bag needs to be implanted separately, which has low production efficiency. For this reason, our company has designed a convenient prefabricated roll film structure. Utility Model Content
[0004] Based on the content in the background technology, the utility model provides a convenient prefabricated roll film structure, in which a sealing component is pre-arranged on the roll film body. Such a prefabricated roll film with a sealing component can be conveniently used to batch and efficiently produce sealed bags with a repeated sealing function.
[0005] A convenient prefabricated roll film structure, comprising a sealing component, a roll film body and a self-adhesive easy-tear sticker; the sealing component comprises a first sealing strip, a second sealing strip, a first hot-sealed edge, a second hot-sealed edge, a third hot-sealed edge and an opening edge; the first sealing strip and the second sealing strip are self-lockingly sealed by matching hook-shaped clips, and the second sealing strip is located above the first sealing strip;
[0006] The first heat-sealed edge and the second heat-sealed edge are respectively arranged on both sides of the first sealing strip and are respectively connected to the first sealing strip as a whole, and the lower surface of the first heat-sealed edge and the lower surface of the second heat-sealed edge are respectively sealed to the upper surface of the roll film body;
[0007] The third hot-sealed edge and the opening edge are arranged on both sides of the second sealing strip and are respectively connected to the second sealing strip in one piece. The third hot-sealed edge and the first hot-sealed edge are located on the same side. The width of the third hot-sealed edge is greater than that of the first hot-sealed edge. The roll film body is provided with a plurality of easy-to-open dotted lines at intervals along the unwinding direction. The easy-to-open dotted lines are the openings of the sealed bags subsequently made of the prefabricated roll film. The easy-to-open dotted lines facilitate consumers to open the package. The first hot-sealed edge is located beside the easy-to-open dotted lines, and the third hot-sealed edge can completely cover the easy-to-open dotted lines. The lower surface of the outer edge of the third hot-sealed edge is sealed with the upper surface of the roll film body. In this way, the sealing component is arranged on the roll film body so that the inner side of the sealing component is in a sealed and isolated state, thereby ensuring the unopened sealing of the sealed bags subsequently made of the prefabricated roll film structure, and achieving good barrier properties before the sealing component is opened.
[0008] The opening edge and the second hot-sealed edge are located on the same side, the width of the opening edge is greater than the second hot-sealed edge, a portion of the lower surface of the sticky area of the self-adhesive easy-tear sticker is bonded to the upper surface of the opening edge, and another portion is bonded to the upper surface of the roll film body. The design of the self-adhesive easy-tear sticker here can pre-fix the sealing component during the production process of the prefabricated roll film, avoiding displacement of the sealing component when it is subsequently sealed with the roll film body, ensuring accuracy, and after the subsequent bag making using the prefabricated roll film is completed, the self-adhesive easy-tear sticker can also play a sealing role, sealing the opening edge, further ensuring the sealing effect of the sealed bag when it is not opened, and consumers can easily tear off the self-adhesive easy-tear sticker to open the sealed bag.
[0009] Furthermore, the sealing component is provided with a flattening area at the interval between adjacent easy-opening dotted lines, and the flattening area is specifically formed by die pressing and ironing, so that a part of the lower surface of the third hot-sealed edge in the flattening area is sealed with the upper surface of the first hot-sealed edge, and another part is sealed with the upper surface of the roll film body, and a part of the lower surface of the opening edge in the flattening area is sealed with the upper surface of the second hot-sealed edge, and another part is sealed with the upper surface of the roll film body. After the prefabricated roll film structure is used for bag making and cutting, the part between adjacent flattening areas is a sealing component of a sealed bag. The provision of the flattening area can make the two ends of the sealing component of the manufactured sealed bag completely sealed, and prevent the sealed bag from leaking at the sealing component;
[0010] Furthermore, a first sealing rack is provided at the outer edge of the second hot-sealed edge, and a second sealing rack is provided at a corresponding position of the opening edge, and the first sealing rack and the second sealing rack can be mutually engaged and sealed. The first sealing strip and the second sealing strip of the sealing assembly are the main seals, and the first sealing rack and the second sealing rack are the auxiliary seals. The multi-channel sealing structure enables it to have a good sealing effect.
[0011] Preferably, the roll film body is a multi-layer composite structure of PP / PE / MOPP / PE, and the sealing component is a PE profile.
[0012] Preferably, the self-adhesive easy-tear label further includes a non-sticky area, the non-sticky area 302 is located outside the sticky area of the self-adhesive easy-tear label, and a tooth-shaped notch is provided at the outer edge of the non-sticky area; the sealed bag made of the prefabricated roll film structure is convenient for consumers to tear off the self-adhesive easy-tear label along the non-sticky area to open the sealed bag.
[0013] Through the above technical solution, the utility model at least includes the following beneficial effects:
[0014] By pre-setting the sealing component on the roll film body, the prefabricated roll film structure described in the present application can be used to efficiently and in batches produce sealed bags with repeated sealing functions, which is convenient; and the sealing component of the prefabricated roll film structure itself has two sealing structures, plus the sealing effect of the self-adhesive easy-tear sticker on the opening edge, so that the inside of the sealing component is in a sealed and isolated state, ensuring the efficient sealing of the subsequently manufactured sealed bags when they are not opened, and the manufactured sealed bags are easy to open and re-seal, which is convenient for consumers to open the package. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is an overall schematic diagram of the prefabricated roll membrane structure in the implementation manner of the present application;
[0016] Figure 2 This is a schematic diagram of the structure of the film roll body in the embodiment of the present application;
[0017] Figure 3 This is a schematic diagram of the structure of the sealing assembly in the embodiment of the present application;
[0018] Figure 4 for Figure 1 A partial schematic diagram of a certain viewing angle of the cross section at a in the middle;
[0019] Figure 5 This is a schematic diagram of using prefabricated roll film to batch produce sealed bags in an embodiment of the present application;
[0020] Figure 6 It is a front view of a sealing bag with a re-sealing function made by using a prefabricated roll film structure in an embodiment of the present application;
[0021] Figure 7 for Figure 6 Sectional view at dd in the middle;
[0022] Figure 8 for Figure 7 The enlarged view of point D in the middle;
[0023] Explanation of the reference numerals: sealing assembly 1, first sealing strip 101, second sealing strip 102, first hot-sealed edge 103, second hot-sealed edge 104, third hot-sealed edge 105, opening edge 106, first sealing rack 107, second sealing rack 108, flattening area 109, roll film body 2, easy-open dotted line 201, easy-tear self-adhesive label 3, sticky area 301, non-sticky area 302, serrated notch 303, front film of bag body 4, back film of bag body 5. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention.
[0025] In the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship are only used for exemplary description and cannot be understood as limiting this patent; if there are terms such as "first", "second", etc., they are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the said features. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0026] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.
[0027] refer to Figures 1 to 4 A convenient prefabricated roll film structure, comprising a sealing component 1, a roll film body 2 and a self-adhesive easy-to-tear sticker 3; the roll film body 2 is a multi-layer composite structure of PP / PE / MOPP / PE, and the sealing component 1 is a PE profile;
[0028] The sealing assembly 1 comprises a first sealing strip 101, a second sealing strip 102, a first heat-sealed edge 103, a second heat-sealed edge 104, a third heat-sealed edge 105 and an opening edge 106; the first sealing strip 101 and the second sealing strip 102 are self-lockingly sealed by matching hook-shaped clips, and the second sealing strip 102 is located above the first sealing strip 101;
[0029] The first heat-sealed edge 103 and the second heat-sealed edge 104 are respectively arranged on both sides of the first sealing strip 101 and are respectively connected to the first sealing strip 101 in one piece. The lower surface of the first heat-sealed edge 103 and the lower surface of the second heat-sealed edge 104 are respectively sealed to the upper surface of the roll film body 2.
[0030] The third hot-sealed edge 105 and the opening edge 106 are arranged on both sides of the second sealing strip 102 and are respectively connected to the second sealing strip 102 as a whole. The third hot-sealed edge 105 and the first hot-sealed edge 103 are located on the same side. The width of the third hot-sealed edge 105 is greater than that of the first hot-sealed edge 103. The roll film body 2 is provided with a plurality of easy-to-open dotted lines 201 at intervals along the unwinding direction. The easy-to-open dotted lines 201 are the openings of the sealed bags made of the prefabricated roll film in the future. The easy-to-open dotted lines 201 are convenient for consumers. When the package is opened, the first hot-sealed edge 103 is located beside the easy-open dotted line 201, and the third hot-sealed edge 105 can completely cover the easy-open dotted line 201, and the lower surface of the outer edge of the third hot-sealed edge 105 is sealed with the upper surface of the roll film body 2; in this way, the sealing component 1 is arranged on the roll film body 2, so that the inner side of the sealing component 1 is in a sealed and isolated state, thereby ensuring the unopened sealing of the sealed bag made using the prefabricated roll film structure later, and achieving good barrier performance before the sealing component 1 is opened.
[0031] The opening edge 106 and the second heat-sealed edge 104 are located on the same side, the width of the opening edge 106 is greater than the second heat-sealed edge 104, a part of the lower surface of the adhesive area 301 of the self-adhesive easy-tear label 3 is bonded to the upper surface of the opening edge 106, and the other part is bonded to the upper surface of the roll film body 2. The design of the self-adhesive easy-tear label 3 here can play a role in pre-fixing the sealing component 1 during the production process of the prefabricated roll film, avoiding displacement of the sealing component 1 when it is subsequently sealed with the roll film body 2, ensuring accuracy, and after the subsequent bag making using the prefabricated roll film is completed, the self-adhesive easy-tear label 3 can also play a role in sealing, and play a role in sealing the opening edge 106, further ensuring the sealing effect of the sealed bag when it is not opened, and consumers can also easily tear off the self-adhesive easy-tear label 3 to open the sealed bag.
[0032] refer to Figure 1The sealing component 1 is provided with a flattening area 109 at the interval between adjacent easy-opening dotted lines 201. The flattening area 109 is specifically formed by die pressing and ironing, so that a part of the lower surface of the third hot-sealed edge 105 in the flattening area 109 is sealed with the upper surface of the first hot-sealed edge 103, and another part is sealed with the upper surface of the roll film body 2. A part of the lower surface of the opening edge 106 in the flattening area 109 is sealed with the upper surface of the second hot-sealed edge 104, and another part is sealed with the upper surface of the roll film body 2. After the prefabricated roll film structure is used for bag making and cutting, the part between adjacent flattening areas 109 is the sealing component 1 of a sealed bag. The provision of the flattening area 109 can make the two ends of the sealing component 1 of the manufactured sealed bag completely sealed, and prevent the sealed bag from leaking at the sealing component 1;
[0033] refer to Figure 3 or Figure 4 The first sealing rack 107 is arranged at the outer edge of the second hot-sealed edge 104, and the second sealing rack 108 is arranged at the corresponding position of the opening edge 106. The first sealing rack 107 and the second sealing rack 108 can be mutually engaged and sealed. The first sealing strip 101 and the second sealing strip 102 of the sealing assembly 1 are the main seals, and the first sealing rack 107 and the second sealing rack 108 are the auxiliary seals. The multi-channel sealing structure enables it to have a good sealing effect.
[0034] refer to Figure 4 The self-adhesive easy-to-tear sticker 3 also includes a non-sticky area 302, which is located outside the sticky area 301 of the self-adhesive easy-to-tear sticker 3, and a tooth-shaped notch 303 is provided at the outer edge of the non-sticky area 302 (the tooth-shaped notch 303 is shown in FIG. Figure 6 ); The sealed bag made of the prefabricated roll film structure is convenient for consumers to tear off the self-adhesive easy-tear sticker 3 along the non-stick area 302 to open the sealed bag.
[0035] The method for making the above-mentioned convenient prefabricated roll film structure is as follows, comprising the following steps:
[0036] S1. References Figure 2 , unwind the film body 2, and mark a plurality of easy-opening dotted lines 201 at intervals on the film body 2 along the unwinding direction of the film by laser scribing;
[0037] S2. References Figure 1 and Figure 4, unwind the sealing component 1 on the surface of the roll film body 2, adjust the position of the sealing component 1 so that the first hot-sealed edge 103 of the sealing component 1 is located beside the easy-opening imaginary line 201, and the third hot-sealed edge 105 can completely cover the easy-opening imaginary line 201, and simultaneously unwind the self-adhesive easy-tear sticker 3, a part of the sticky area 301 of the self-adhesive easy-tear sticker 3 is bonded to the opening edge 106 of the sealing component 1, and the other part is bonded to the surface of the roll film body 2, so that the sealing component 1 is pre-fixed on the surface of the roll film body 2 through the self-adhesive easy-tear sticker 3;
[0038] S3. For reference Figure 4 , use an annular hot knife to seal the first hot sealing edge 103 and the second hot sealing edge 104 with the roll film body 2, and then use a strip hot knife to seal the outer edge of the third hot sealing edge 105 with the roll film body 2. The sealing temperature of the annular hot knife and the strip hot knife can be controlled at 170-190°C. After the hot sealing is completed, the sealing component 1 can be fixed on the roll film body 2;
[0039] S4. References Figure 1 The sealing component 1 is molded at the intervals between the adjacent easy-open dotted lines 201 to form a plurality of flattened areas 109 on the sealing component 1. The molding adopts a high-frequency flattening device. The flattening mold of the high-frequency flattening device is provided with corresponding arc-shaped grooves according to the height and width of the first sealing strip 101 and the second sealing strip 102 of the sealing component 1. The setting of the arc-shaped grooves prevents the molding pressure at the sealing strip from being too large, which may cause pressure damage to the sealing component 1. Then, the flattened area 109 of the sealing component 1 is ironed and heat-sealed with the roll film body 2, so that a part of the third hot-sealed edge 105 in the flattened area 109 is aligned with the first hot-sealed edge 106. A hot-sealed edge 103 is sealed, and the other part is sealed with the roll film body 2. A part of the opening edge 106 in the flattening area 109 is sealed with the second hot-sealed edge 104, and the other part is sealed with the roll film body 2. The hot-sealing adopts a high-frequency heat sealer. The hot-sealing mold of the high-frequency heat sealer is a flat-pressing type. An appropriate setting parameter is: the high frequency is set to 1500HZ, the hot-sealing temperature is set to 115℃, and the speed is set to 50pcs / min; another appropriate setting parameter is: the high frequency is set to 2500HZ, the hot-sealing temperature is set to 130℃, and the speed is set to 70pcs / min.
[0040] After the sealing component 1 and the roll film body 2 are cooled, they are rolled up to obtain the prefabricated roll film structure described in the present application. The prefabricated roll film can be conveniently used to efficiently produce sealed bags with repeated sealing functions in batches. The specific production method is as follows:
[0041] Reference Figures 5 to 8The above-mentioned prefabricated roll film structure is unrolled as the front film 4 of the bag body, and the back film 5 of the bag body of the same size is unrolled and laminated therewith. Of course, the back film 5 of the bag body is laminated to the side of the front film 4 of the bag body without the sealing component 1. The edges of the laminated edges of the front film 4 and the back film 5 of the bag body and the interval between the adjacent easy-opening dotted lines 201 are heat-sealed to make bags. Finally, the bags are cut at the heat-sealed areas between the adjacent easy-opening dotted lines 201 to obtain sealed bags with repeated sealing functions. Figure 5 After the front film 4 of the bag body and the rear film 5 of the bag body are unrolled and attached, point A is the required heat sealing point, and point B is the required cutting point. This process can be carried out in a four-side sealing packaging machine and a slitting machine. If the contents need to be filled, the inner packaging containing the contents can be placed at a fixed point on the rear film 5 of the bag body and directly sealed on four sides to make bags, or three sides can be sealed and made into bags first, and then sealed by a sealing machine after filling the contents.
[0042] The method of using the prepared sealed bag is as follows: Figure 8 The consumer tears off the self-adhesive easy-tear sticker 3 along the non-stick area 302, opens the sealing assembly 1 along the opening edge 106, and then tears the easy-opening dotted line 201 to completely open the sealed bag. When it needs to be sealed again, the first sealing strip 101 and the second sealing strip 102 of the sealing assembly 1 are pressed together, and the first sealing rack 107 and the second sealing rack 108 are pressed together. The sealed bag has a good sealing effect when it is not opened, is easy to open and re-seal, and has a good re-sealing effect.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Based on the present invention and the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A convenient prefabricated roll film structure, characterized in that: The invention comprises a sealing component (1), a roll film body (2) and a self-adhesive easy-tear label (3); the sealing component (1) comprises a first sealing strip (101), a second sealing strip (102), a first hot-sealed edge (103), a second hot-sealed edge (104), a third hot-sealed edge (105) and an opening edge (106); the first sealing strip (101) and the second sealing strip (102) are self-lockingly sealed by matching hook-shaped clips, and the second sealing strip (102) is located above the first sealing strip (101); The first heat-sealed edge (103) and the second heat-sealed edge (104) are respectively arranged on both sides of the first sealing strip (101) and are respectively connected to the first sealing strip (101) as a whole, and the first heat-sealed edge (103) and the second heat-sealed edge (104) are respectively sealed with the roll film body (2); the third heat-sealed edge (105) and the opening edge (106) are respectively arranged on both sides of the second sealing strip (102) and are respectively connected to the second sealing strip (102) as a whole, the third heat-sealed edge (105) and the first heat-sealed edge (103) are located on the same side, the width of the third heat-sealed edge (105) is greater than that of the first heat-sealed edge (103), and the roll film body (2) A plurality of easy-to-open dotted lines (201) are arranged at intervals along the unwinding direction, the first heat-sealed edge (103) is located next to the easy-to-open dotted line (201), and the third heat-sealed edge (105) can completely cover the easy-to-open dotted line (201), and the outer edge of the third heat-sealed edge (105) is sealed with the roll film body (2); the opening edge (106) and the second heat-sealed edge (104) are located on the same side, the width of the opening edge (106) is greater than that of the second heat-sealed edge (104), and a part of the sticky area (301) of the self-adhesive easy-to-tear sticker (3) is bonded to the opening edge (106), and another part is bonded to the roll film body (2).
2. A convenient prefabricated roll film structure according to claim 1, characterized in that: The sealing component (1) is provided with a flattening area (109) at the interval between adjacent easy-opening dotted lines (201); a portion of the third hot-sealed edge (105) in the flattening area (109) is sealed with the first hot-sealed edge (103), and another portion is sealed with the roll film body (2); a portion of the opening edge (106) in the flattening area (109) is sealed with the second hot-sealed edge (104), and another portion is sealed with the roll film body (2).
3. A convenient prefabricated roll film structure according to claim 1 or 2, characterized in that: A first sealing rack (107) is arranged at the outer edge of the second heat-sealed edge (104), and a second sealing rack (108) is arranged at a corresponding position of the opening edge (106); the first sealing rack (107) and the second sealing rack (108) can be mutually engaged and sealed.
4. A convenient prefabricated roll film structure according to claim 1 or 2, characterized in that: The roll film body (2) is a multi-layer composite structure of PP / PE / MOPP / PE, and the sealing component (1) is a PE profile.
5. The convenient prefabricated roll film structure according to claim 1 or 2, characterized in that: The self-adhesive easy-to-tear sticker (3) further comprises a non-sticky area (302), which is located outside the sticky area (301) of the self-adhesive easy-to-tear sticker (3), and a tooth-shaped notch (303) is provided at the outer edge of the non-sticky area (302).