WO2024103584A1 - 保鲜袋密封结构及其制造方法 - Google Patents

保鲜袋密封结构及其制造方法 Download PDF

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Publication number
WO2024103584A1
WO2024103584A1 PCT/CN2023/082236 CN2023082236W WO2024103584A1 WO 2024103584 A1 WO2024103584 A1 WO 2024103584A1 CN 2023082236 W CN2023082236 W CN 2023082236W WO 2024103584 A1 WO2024103584 A1 WO 2024103584A1
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protrusion
snap
transverse
fresh
opening
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PCT/CN2023/082236
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English (en)
French (fr)
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吴文本
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广东好印象创新科技有限公司
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Publication of WO2024103584A1 publication Critical patent/WO2024103584A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners

Definitions

  • the invention relates to the technical field of packaging bags, in particular to a fresh-keeping bag sealing structure and a manufacturing method thereof.
  • the existing fresh-keeping bag has an opening 13 at the top of the fresh-keeping bag body 10.
  • a first sealing strip 131 and a second sealing strip 132 are provided on both sides of the opening 13.
  • a clamping protrusion 1311 is provided on the first sealing strip 131, and a clamping groove 1321 is provided on the second sealing strip 132 at a position corresponding to the clamping protrusion 1311.
  • the clamping protrusion 1311 can be clamped with the clamping groove 1321, thereby preliminarily sealing the opening 13.
  • second sealing protrusions 1314 are provided at both ends of the inner side of the first sealing strip 131
  • second sealing grooves 1324 are provided at both ends of the inner side of the second sealing strip 132 at positions corresponding to the second sealing protrusions 1314.
  • the second sealing protrusions 1314 can be clamped in the second sealing grooves 1324, thereby further improving the sealing of the opening 13.
  • the above existing fresh-keeping bags; the second sealing protrusion 1314 and the second sealing groove 1324 are extended along the protrusion 1311 and the snap-in groove 1321; there is no substantial difference between the snap-in protrusion 1311 and the snap-in groove 1321; it is difficult to achieve complete sealing.
  • the side of the bag mouth is opened for demolding, and then the side of the bag mouth is formed by secondary artificial glue + mold heating and solidification, and finally secondary vulcanization treatment is performed for forming.
  • the aforementioned existing processing and production requires 4 steps: mold forming-artificial glue-mold heating and solidification-secondary vulcanization.
  • two processes of secondary artificial glue + mold heating and solidification must be adopted.
  • the increase in existing production processes has brought about an increase in cost and a decrease in efficiency; at the same time, it is also easy to lead to a decrease in product quality stability; for example, the bag mouth is prone to tearing.
  • the technical problem solved by the present invention is to provide a fresh-keeping bag sealing structure and a manufacturing method thereof; to solve the problems of poor sealing effect and complicated production process caused by the existing second sealing protrusion and second sealing groove structure extending along the protrusion and the clamping groove.
  • the sealing structure of the silicone fresh-keeping bag is that an opening is opened at the top of the fresh-keeping bag body; a first sealing strip and a second sealing strip are arranged on both sides of the opening; a clamping protrusion is arranged on the first sealing strip, and a clamping groove is arranged at a position corresponding to the clamping protrusion of the second sealing strip, and the opening is initially sealed after the clamping protrusion and the clamping groove cooperate; a transverse protrusion arranged transversely relative to the clamping protrusion is arranged between the two ends of the clamping protrusion and the bottom of the opening; a transverse groove is arranged between the two ends of the clamping groove and the bottom of the opening corresponding to the transverse protrusion; after the clamping protrusion and the clamping groove cooperate, the transverse protrusion cooperates with the transverse groove to completely seal the opening.
  • the transverse groove is of non-through design in the thickness direction of the sealing strip, and groove ends are formed by the sealing strip at both ends of the transverse groove; when the transverse protrusion cooperates with the transverse groove, the groove end and both ends of the transverse protrusion fully cooperate to achieve complete sealing of the opening.
  • the transverse protrusion is semi-cylindrical; one side is gradually raised from the bottom of the opening, and the other side is connected with the clamping protrusion in an arc transition; the top of the transverse protrusion is higher than the top of the clamping protrusion.
  • the length of the transverse protrusion is greater than the thickness of the clamping protrusion, and the two transverse protrusions and the clamping protrusion form a curved "I" shape.
  • the manufacturing method of the fresh-keeping bag sealing structure is that the fresh-keeping bag body, the sealing strip forming the opening, and the protrusions and grooves arranged on the sealing strip are formed by one-time in-mold molding of a mold.
  • the fresh-keeping bag is made of silica gel material.
  • the present invention has the following beneficial effects:
  • the fresh-keeping bag and its opening structure are formed in the mold at one time, avoiding the two processes of secondary artificial gluing and mold heating and solidification.
  • By simplifying the process on the one hand, it can reduce costs; on the other hand, it can also improve production efficiency and enhance quality stability; at the same time, it can also avoid the problem of "tearing open” in conventional bag designs.
  • the invention provides a transverse protrusion between the two ends of the clamping protrusion and the bottom of the opening relative to the clamping protrusion; a transverse groove is provided between the two ends of the clamping groove and the bottom of the opening corresponding to the transverse protrusion; the fresh-keeping bag can be completely sealed by the transverse protrusion and the transverse groove.
  • the vertical and horizontal combined layout can also ensure the stability of the seal.
  • FIG1 is a side view of the structure of an existing fresh-keeping bag
  • FIG2 is a partial enlarged side view of an existing fresh-keeping bag
  • Fig. 3 is a left view of the utility model fresh-keeping bag
  • Fig. 4 is a front view of the utility model fresh-keeping bag
  • Fig. 5 is a right side view of the utility model fresh-keeping bag
  • Fig. 6 is a perspective view of the utility model fresh-keeping bag
  • FIG8 is an enlarged view of part A of FIG7;
  • FIG9 is an enlarged view of part B of FIG7;
  • FIG10 is a perspective view of the utility model fresh-keeping bag from another perspective
  • FIG11 is an enlarged view of portion C of FIG10;
  • FIG12 is a partial cross-sectional view of the state of FIG10;
  • FIG13 is an enlarged view of portion D of FIG12;
  • FIG14 is a cross-sectional view of the state of FIG3;
  • FIG. 15 is an enlarged view of part E of FIG. 14 .
  • the fresh-keeping bag of the present invention is provided with an opening 13 at the top of the fresh-keeping bag body 10, and a first sealing strip 131 and a second sealing strip 132 are provided on both sides of the opening 13.
  • a snap-fitting protrusion 1311 is provided on the first sealing strip 131, and a snap-fitting groove 1321 is provided on the second sealing strip 132 at a position corresponding to the snap-fitting protrusion 1311.
  • the snap-fitting protrusion 1311 can snap-fit the snap-fitting groove 1321, thereby making the opening 13 preliminarily sealed.
  • the engaging protrusion 1311 can be pressed into the engaging groove 1321 to achieve a convenient initial sealing effect.
  • a transverse protrusion 1315 arranged transversely relative to the snap-fit protrusion 1311 is provided between the two ends of the snap-fit protrusion 1311 and the bottom of the opening 13;
  • a transverse groove 1325 is provided between the two ends of the snap-fit groove 1321 and the bottom of the opening corresponding to the transverse protrusion 1315; after the snap-fit protrusion 1311 and the snap-fit groove 1321 are matched, the transverse protrusion 1315 and the transverse groove 1325 are matched to completely seal the opening 13.
  • the transverse groove 1325 is of non-through design in the thickness direction of the second sealing strip 132, and groove ends are formed at both ends of the transverse groove 1325 by the second sealing strip 132; when the transverse protrusion 1315 is matched with the transverse groove 1325, the groove end is fully matched with both ends of the transverse protrusion 1315, thereby ensuring complete sealing of the opening 13.
  • the transverse protrusion 1315 is semi-cylindrical, gradually rising from the bottom of the opening 13, and the other side is connected with the clamping protrusion 1311 in an arc transition, and the top of the transverse protrusion 1315 is higher than the top of the clamping protrusion 1311.
  • This structure of the transverse protrusion 1315 combined with the corresponding structure of the transverse groove 1325, can achieve smooth cooperation between the transverse protrusion 1315 and the transverse groove 1325.
  • the length of the transverse protrusion 1315 is greater than the thickness of the clamping protrusion 1311, and the two transverse protrusions 1315 and the clamping protrusion 1311 form a curved "I" shape.
  • the present invention adopts a one-time in-mold molding method to manufacture the fresh-keeping bag body 10 and the sealing strips 131, 132 forming the opening 13 and the protrusions 1311, 11315, grooves 1321, 1325 provided on the sealing strips 131, 132; effectively avoiding the defects caused by the secondary artificial glue and the mold heating and solidification process.
  • the fresh-keeping bag described in the above structure and method of the present invention is made of silicone material; while meeting the environmental protection requirements of the fresh-keeping bag, it fully utilizes the characteristics of the silicone material to achieve the one-time in-mold molding and the sealing structure of the sealing structure, and meets the requirements of repeated use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)

Abstract

一种保鲜袋密封结构及其制造方法，涉及包装袋技术领域，保鲜袋在卡接凸起（1311）两端与开口（13）底部之间设置有相对于卡接凸起（1311）横向设置的横向凸起（1315）；在卡接槽（1321）两端与开口（13）底部之间对应横向凸起（1315）设置有横向槽（1325）；在卡接凸起（1311）与卡接槽（1321）配合后横向凸起（1315）与横向槽（1325）配合将开口（13）完全密封；保鲜袋本体（10）及形成开口（13）的密封条和密封条上设置的凸起、槽由模具一次性模内成型而成。该保鲜袋密封结构解决了现有硅胶保鲜袋二次人工粘胶和模具加热凝固工艺导致的成本增加、效率降低和产品品质下降的问题。

Description

保鲜袋密封结构及其制造方法 技术领域
本发明涉及包装袋技术领域，特指一种保鲜袋密封结构及其制造方法。
 背景技术
在现代家庭生活中，蔬菜、水果等食物通常放置在冰箱等可以保持较低温度的环境中进行贮藏保鲜。为了减少蔬菜、水果等新鲜食物的脱水；常通过保鲜袋的方式进行密封。当然，也有利用保鲜袋密封避免串味者。
见图1、2所示，现有的保鲜袋是在保鲜袋本体10的顶部设有开口13，为了将所述开口13密封，在所述开口13的两侧设有第一密封条131和第二密封条132，在所述第一密封条131上设有卡接凸起1311，所述第二密封条132在对应所述卡接凸起1311的位置设有卡接槽1321，所述卡接凸起1311能够卡接所述卡接槽1321，进而使得所述开口13初步密封。在使用中，使用者用手沿着所述第一密封条131和所述第二密封条132的延伸方向捏合所述第一密封条131和所述第二密封条132，即可将所述卡接凸起1311压入所述卡接槽1321内，使得在密封效果好的基础上，操作方便快捷。为了加强所述开口13处位于所述第一密封条131和所述第二密封条132两端的密封性，在所述第一密封条131内侧两端设有第二密封凸起1314，所述第二密封条132内侧两端在对应所述第二密封凸起1314的位置设有第二密封槽1324，所述第二密封凸起1314能够卡接所述第二密封槽1324，进而使得所述开口13的密封性得到进一步提升。
以上现有的保鲜袋；第二密封凸起1314和第二密封槽1324是顺着凸起1311和卡接槽1321延伸设置；与卡接凸起1311、卡接槽1321没有实质上的区别；难以实现完全的密封。此外，在现有的生产过程中，是在袋口侧边开口出模，然后袋口侧边经过二次人工粘胶+模具加热凝固成型，最后再二次硫化处理成型。前述现有的加工生产需经过4道工序：模具成型-人工粘胶-模具加热凝固-二次硫化。产品成型工艺上，必须采用二次人工粘胶+模具加热凝固的两道工艺。现有生产工艺增加带来了成本增加和效率的降低；同时，也容易导致产品品质稳定性的下降；如在袋口容易出现拉破口等。
发明内容
本发明解决的技术问题在于提供一种保鲜袋密封结构及其制造方法；解决现有通过顺着凸起和卡接槽延伸设置第二密封凸起和第二密封槽结构带来的密封效果差、生产工艺复杂等问题。
本发明解决上述技术问题的技术方案是：
所述硅胶保鲜袋密封结构是保鲜袋本体顶部开设开口；开口两侧设有第一密封条和第二密封条；所述第一密封条上设有卡接凸起，所述第二密封条对应所述卡接凸起的位置设有卡接槽，所述卡接凸起与卡接槽配合后将开口初步密封；在所述卡接凸起两端与开口底部之间设置有相对于卡接凸起横向设置的横向凸起；在卡接槽两端与开口底部之间对应横向凸起设置有横向槽；在卡接凸起与卡接槽配合后横向凸起与横向槽配合将开口完全密封。
所述的横向槽在密封条的厚度方向上为非贯通式设计，在横向槽两端由密封条形成有槽端；当横向凸起与横向槽配合后，槽端与横向凸起两端完全配合实现对开口的完全密封。
所述的横向凸起为半圆柱状；一边由开口的底部逐渐抬升，另一边与卡接凸起弧形过渡连接；横向凸起顶部高于卡接凸起的顶部。
所述的横向凸起的长度大于卡接凸起的厚度，两横向凸起与卡接凸起形成弯曲的“工”字状。
所述保鲜袋密封结构的制造方法是保鲜袋本体及形成开口的密封条和密封条上设置的凸起、槽由模具一次性模内成型而成。
所述的保鲜袋由硅胶材料制成。
采用前述的技术方案，本发明具有以下的有益效果：
保鲜袋及其开口结构通过模具一次性模内成型，避免了二次人工粘胶和模具加热凝固两道工艺。通过工艺的简化，一方面可以降低成本；另一方面也可以提高生产效率，提升品质的稳定性；同时，还可以避免袋口出现常规设计的“拉破开”问题。
本发明相对于卡接凸起，在卡接凸起两端与开口底部之间设置横向凸起；在卡接槽两端与开口底部之间对应横向凸起设置横向槽；通过横向凸起和横向槽可以实现保鲜袋的完全密封。纵横的结合布局，也可以确保密封的稳定性。
 附图说明
下面结合附图对本发明进一步说明：
图1是现有保鲜袋侧视结构图；
图2是现有保鲜袋侧视局部放大图；
图3是本实用新型保鲜袋左视图；
图4是本实用新型保鲜袋主视图；
图5是本实用新型保鲜袋右视图；
图6是本实用新型保鲜袋立体图；
图7是本实用新型保鲜袋剖开状态图；
图8是图7A部放大图；
图9是图7B部放大图；
图10是本实用新型保鲜袋另一视角立体图；
图11是图10C部放大图；
图12是图10状态局部剖视图；
图13是图12D部放大图；
图14是图3状态剖视图；
[根据细则91更正 03.04.2023]
图15是图14E部放大图。
 具体实施方式
以下实施例是对本发明具体实施方式的描述，该描述是便于本领域技术人员对本申请技术方案的理解，并非对本发明技术方案保护范围的限制；凡依本发明实施例的描述可得之等效变换皆应在本发明的保护范围之内。
见图3-15所示，本发明的保鲜袋在保鲜袋本体10的顶部设有开口13，在开口13的两侧设有第一密封条131和第二密封条132。在第一密封条131上设有卡接凸起1311，第二密封条132在对应卡接凸起1311的位置设有卡接槽1321。卡接凸起1311能够卡接卡接槽1321，进而使得所述开口13初步密封。
当使用者用手沿着第一密封条131和第二密封条132的延伸方向捏合第一密封条131和第二密封条132，即可将卡接凸起1311压入所述卡接槽1321内，实现便捷的初步密封效果。
由于卡接凸起1311两端和卡接槽1321难以实现完全的密封；为此，在卡接凸起1311两端与开口13底部之间设置有相对于卡接凸起1311横向设置的横向凸起1315；在卡接槽1321两端与开口底部之间对应横向凸起1315设置有横向槽1325；在卡接凸起1311与卡接槽1321配合后横向凸起1315与横向槽1325配合将开口13完全密封。
横向槽1325在第二密封条132的厚度方向上为非贯通式设计，在横向槽1325两端由第二密封条132形成有槽端；当横向凸起1315与横向槽1325配合后，槽端与横向凸起1315两端完全配合；可以确保实现对开口13的完全密封。
横向凸起1315为半圆柱状；由开口13的底部逐渐抬升，另一边与卡接凸起1311弧形过渡连接；横向凸起1315顶部高于卡接凸起1311的顶部。横向凸起1315的此种结构，再配合上横向槽1325的对应结构；可以实现横向凸起1315与横向槽1325配合过程的顺畅性。
横向凸起1315的长度大于卡接凸起1311的厚度，两横向凸起1315与卡接凸起1311形成弯曲的“工”字状。此种布局的设置，当横向凸起1315与横向槽1325、卡接凸起1311与卡接槽1321配合后产生一个拉扯力，使结合力更大；将第一密封条131和第二密封条132的底部(开口13的开始处)紧贴，不容易脱离开；真正达到密封效果。
基于前述的密封结构；本发明采用保鲜袋本体10及形成开口13的密封条131、132和密封条131、132上设置的凸起1311、11315、槽1321、1325由模具一次性模内成型的方法进行制造；有效避免二次人工粘胶和模具加热凝固工艺所导致的缺陷。本发明以上的结构和方法中所述的保鲜袋由硅胶材料制成；在满足保鲜袋环保需求的同时，充分利用了硅胶材料的特性，实现一次性膜内成型及密封结构的密封性，并满足重复使用需求。

Claims (10)

  1. 一种保鲜袋密封结构，所述保鲜袋的本体顶部开设开口；开口两侧设有第一密封条和第二密封条；所述第一密封条上设有卡接凸起，所述第二密封条对应所述卡接凸起的位置设有卡接槽，所述卡接凸起与卡接槽配合后将开口初步密封；其特征在于：在所述卡接凸起两端与开口底部之间设置有相对于卡接凸起横向设置的横向凸起；在卡接槽两端与开口底部之间对应横向凸起设置有横向槽；在卡接凸起与卡接槽配合后横向凸起与横向槽配合将开口完全密封。
  2. 根据权利要求1所述的保鲜袋密封结构，其特征在于：所述横向槽在密封条的厚度方向上为非贯通式设计，在横向槽两端由密封条形成有槽端；当横向凸起与横向槽配合后，槽端与横向凸起两端完全配合实现对开口的完全密封。
  3. 根据权利要求1所述的保鲜袋密封结构，其特征在于：所述横向凸起为半圆柱状；其一边由开口的底部逐渐抬升，另一边与卡接凸起弧形过渡连接；横向凸起顶部高于卡接凸起的顶部。
  4. 根据权利要求2所述的保鲜袋密封结构，其特征在于：所述横向凸起为半圆柱状；其一边由开口的底部逐渐抬升，另一边与卡接凸起弧形过渡连接；横向凸起顶部高于卡接凸起的顶部。
  5. 根据权利要求1所述的保鲜袋密封结构，其特征在于：所述横向凸起的长度大于卡接凸起的厚度，两横向凸起与卡接凸起形成弯曲的“工”字状。
  6. 根据权利要求2所述的保鲜袋密封结构，其特征在于：所述横向凸起的长度大于卡接凸起的厚度，两横向凸起与卡接凸起形成弯曲的“工”字状。
  7. 根据权利要求3所述的保鲜袋密封结构，其特征在于：所述横向凸起的 长度大于卡接凸起的厚度，两横向凸起与卡接凸起形成弯曲的“工”字状。
  8. 根据权利要求4所述的保鲜袋密封结构，其特征在于：所述横向凸起的长度大于卡接凸起的厚度，两横向凸起与卡接凸起形成弯曲的“工”字状。
  9. 一种保鲜袋密封结构的制造方法，其特征在于：所述保鲜袋的本体及形成开口的密封条和密封条上设置的凸起、槽由模具一次性模内成型而成。
  10. 根据权利要求9所述的制造方法，其特征在于：所述保鲜袋由硅胶材料制成。
PCT/CN2023/082236 2022-11-18 2023-03-17 保鲜袋密封结构及其制造方法 WO2024103584A1 (zh)

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