Method for realizing high sealing performance of covering surface of composite material packaging box

Abstract

The invention discloses a method for realizing high sealing performance of a covering surface of a composite material packaging box, which is characterized in that a flying wing seam-attaching type pipe tunnel and a sealing element with a deformation waist are mounted on the covering surface of the packaging box, and the covering surface of the packaging box is used for fixed-distance locking to form constant deformation of the sealing element. The method of fixed-distance locking, constant-deformation compression, seam attaching and deformation waist is adopted, the problem that the sealing performance of the packaging box cannot be stabilized and reliable for a long time at present is thoroughly solved, the method is suitable for guiding the sealing design of the covering face of the large-size large-opening packaging box, the sealing method is applied to batch production practice on multiple products, the sealing performance is stable and reliable, and the sealing effect is good. The method has the advantages of remarkable advanced technology and great economic value.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging box sealing, and relates to a method for achieving high sealing performance of a cover surface of a composite material packaging box. Background Art

[0002] Since the length and width of large and medium-sized packaging boxes are relatively large, the sealing area of ​​the cover surface of the box body is very large; for large and medium-sized packaging boxes, the absolute values ​​of the shape and position tolerances of the cover surface of the composite box body in the three axial directions are relatively large, and the cover surface structure has certain deformation in the tangential and normal directions after the box body is inflated. The existing sealing method of the cover surface of the packaging box is mainly achieved by increasing the cover locking compression force (tight compression method).

[0003] The sealing method of increasing the compression force of the cover locking is common in the sealing of the cover surface of most packaging boxes. It is manifested in that, first, a very large force is required to lock the box cover, and the sealing element is over-compressed. Second, even if the box cover surface can still move in the closing direction, it can no longer be manually locked, and there are often gaps on the box cover surface. Generally speaking, this sealing method is very effective and can solve most of the sealing problems of the cover surface in the short term, but it cannot overcome the sealing failure problem caused by long-term over-compression of the sealing element.

[0004] The existing packaging box cover sealing method has a good short-term effect due to the excessive compression of the sealing element, which creates an illusion of excellent sealing performance. The main source of the problem is:

[0005] 1) The quantitative compression method of the sealing element is not considered, and the method of deformation waist of the sealing element is not involved;

[0006] 2) The sealing method does not take into account the constant compression set.

[0007] After investigating relevant factories and warehouses, it was found that the sealing of the cover surface of most packaging boxes cannot achieve a high sealing performance, and its sealing performance cannot be long-term, stable and lasting. Summary of the invention

[0008] (I) Purpose of the invention

[0009] The purpose of the present invention is to provide a method for achieving high sealing performance of the lid surface of a composite material packaging box, aiming at the key problem of the sealing performance of the lid surface of the packaging box body, and improving the high sealing performance of the packaging box, that is, the sealing performance of the packaging box can be long-term stable and durable, and achieve the sealing performance requirement of maintaining positive pressure in the same place for 24 months after the packaging box is inflated.

[0010] (II) Technical solution

[0011] In order to solve the above technical problems, the present invention provides a method for achieving high sealing performance of the lid surface of a composite material packaging box, a sealing element with a wing-seam type tunnel and a deformation waist is installed on the lid surface of the packaging box, and the lid surface of the packaging box is locked at a fixed distance to form a constant deformation of the sealing element.

[0012] The sealing element comprises a sealing seam, a flying wing, a tube tunnel and a deformation waist.

[0013] The sealing element is bent and slid along the equal-width special-shaped installation grooves provided on the cover surface of the packaging box through the pasting seam.

[0014] The sealing element is stabilized in the equal-width special-shaped installation groove by means of the flying wings.

[0015] Among them, the sealing element realizes moderate deformation through the combination of deformation waist and tube tunnel.

[0016] The sealing element is prepared by extrusion molding and butt-jointing of high-performance rubber.

[0017] Among them, the closing surface used for the top-opening packaging box has a lock buckle for installing the closing and locking on the closing surface flange, a sealing element with a wing-seam-type tunnel and a deformation waist, the sealing element is compressed at a fixed distance in the normal direction of the flange, the sealing element is extruded and butted, and the sealing element is installed along the groove.

[0018] (III) Beneficial effects

[0019] The method for achieving high sealing performance of the cover surface of a composite material packaging box provided by the above technical solution has the following beneficial effects:

[0020] (1) The method of the present invention for achieving high sealing performance of the packaging box lid closing surface comprises installing a wing-seam-type pipe tunnel and a deformable waist sealing element, and forming a constant deformation method of the sealing element by locking and spacing when the packaging box lid is closed.

[0021] (2) The method of the present invention for achieving high sealing performance of the cover surface of the packaging box adopts a process method for a sealing element having a unique combination of wings, seams, deformation waists and tunnels.

[0022] (3) The method of the present invention for achieving high sealing performance of the lid surface of the packaging box, the unique feature of the sealing element has a flying wing that can achieve reliable and stable installation and a seam that can bend, slide and fit along the equal-width special-shaped installation groove, and a method for combining a deformation waist and a tube tunnel to achieve a moderate deformation of the element. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram showing the situation in which the sealing element does not deform after the packaging box cover is closed.

[0024] Figure 2This is a schematic diagram of the actual situation in which the sealing component deforms after the packaging box is covered. DETAILED DESCRIPTION

[0025] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0026] In view of the problem that the sealing of the lid surface of the packaging box affects the sealing performance of the packaging box, a method for achieving high sealing performance of the lid surface of a composite material packaging box is proposed. The method is applicable to the box body structure design of the lid surface of the packaging box, the lid surface sealing structure design, the box body lid surface locking method design, and the lid surface locking device design. It can significantly improve the sealing performance of the lid surface of the packaging box, and is particularly suitable for the high sealing performance design of the lid surface of large and medium-sized packaging boxes.

[0027] The technical solution of the method of the present invention is: a sealing element with a wing-seam-type tunnel and a deformation waist is installed on the cover surface of the packaging box, and a compression method is adopted to form a constant deformation of the sealing element by locking the cover surface of the packaging box at a fixed distance.

[0028] Among them, the sealing element has a seam, a wing, a tunnel and a deformation waist; the seam allows the element to bend and slide along the equal-width special-shaped installation groove, and the wing can achieve reliable and stable installation of the element; the combination of the deformation waist and the tunnel allows the element to deform moderately, achieving constant deformation compression and slight permanent deformation; the locking structure arranged according to the fixed-distance locking method of the packaging box cover surface achieves constant deformation compression of the sealing element after the cover is closed. Finally, the sealing element is generally prepared by high-performance rubber extrusion molding and docking.

[0029] Figure 1 and Figure 2 Two situations of the solutions of the present invention are shown respectively.

[0030] Example 1

[0031] The method of achieving high sealing performance of the cover surface of the packaging box of this embodiment is tested on a large-sized composite material open-lid packaging box. The cover surface size of the embodiment packaging box is (length) 6010mm×(width) 1100mm×(height) 900mm, and the corner radius R of the sealing element installation groove is 80mm.

[0032] The specific implementation method is: adopt the method of achieving high sealing performance of the lid surface of the packaging box of the present invention, implement it on the lid surface of a top-opening packaging box for implementation verification, the lid surface flange of the composite material packaging box of the embodiment has a lock buckle characterized by installing the lid and locking it, a sealing element with a wing-seam type tunnel and a deformation waist, the sealing element is compressed at a fixed distance in the normal direction of the flange, the sealing element is extruded and butted, and the sealing element is installed along the groove.

[0033] The box is filled with a certain proportion of helium mixed gas, and the helium mass spectrometer leakage rate alarm value is 1.2×10 -9 Pa*m 3 / S setting, and use helium mass spectrometer to identify the sealing performance.

[0034] Example 2

[0035] The method of achieving high sealing performance of the lid surface of the packaging box in this embodiment is tested on a larger size composite material lid-type packaging box. The lid surface size of the packaging box in the embodiment is (length) 2010mm×(width) 450mm×(height) 560mm, and the corner radius R of the sealing element installation groove is 20mm.

[0036] The specific implementation method is: adopt the method of achieving high sealing performance of the lid surface of the packaging box of the present invention, implement it on the lid surface of a top-opening packaging box for implementation verification, the lid surface flange of the composite material packaging box of the embodiment has a lock buckle characterized by installing the lid and locking it, a sealing element with a wing-seam type tunnel and a deformation waist, the sealing element is compressed at a fixed distance in the normal direction of the flange, the sealing element is extruded and butted, and the sealing element is installed along the groove.

[0037] The box is filled with a certain proportion of helium mixed gas, and the helium mass spectrometer leakage rate alarm value is 1.2×10 -9 Pa*m 3 / S setting, and use helium mass spectrometer to identify the sealing performance.

[0038] Comparative Example 3

[0039] The method for achieving high sealing performance of the cover joint surface of the packaging box in this comparative example is used to compare the sealing performance of the packaging box with that of installing a traditional common O-type sealing element on the cover joint surface of the packaging box.

[0040] The specific implementation method is: adopt the method of achieving high sealing performance of the lid surface of the packaging box of the present invention, implement it on the lid surface of a top-opening packaging box for implementation verification, the lid surface flange of the composite material packaging box of the embodiment has a lock buckle characterized by installing lid locking, a sealing element with a wing-seam-type tunnel and a deformation waist, the sealing element is compressed at a fixed distance in the normal direction of the flange, the sealing element is extruded and butted, and the sealing element is fitted along the groove with the lid surface of the packaging box. After installing a common O-type sealing element, the sealing performance of the packaging box is compared. The two packaging boxes for comparison are different only in the sealing element.

[0041] The box is filled with a certain proportion of helium mixed gas, and the helium mass spectrometer leakage rate alarm value is 1.2×10 -9 Pa*m 3 / S setting, and the sealing performance was identified by using a helium mass spectrometer. The dimensions of the cover surface of the packaging box of the embodiment are (length) 6010mm×(width) 1100mm×(height) 900mm, and the corner radius R of the sealing element installation groove is 80mm.

[0042] Comparative Example 4

[0043] The method for achieving high sealing performance of the cover surface of the packaging box in this comparative example is generally consistent with the similar method of the present invention, but the sealing element installed on the cover surface has no middle seam and no deformation waist, so as to compare the sealing performance of the packaging box.

[0044] The box is filled with a certain proportion of helium mixed gas, and the helium mass spectrometer leakage rate alarm value is 1.2×10 -9 Pa*m 3 / S setting, and the sealing performance was identified by using a helium mass spectrometer. The dimensions of the cover surface of the packaging box of the embodiment are (length) 6010mm×(width) 1100mm×(height) 900mm, and the corner radius R of the sealing element installation groove is 80mm.

[0045] The method of achieving high sealing performance of the lid surface of the packaging box according to the present invention is implemented on the lid surface of the open-lid packaging box of two large sizes, and the sealing performance is compared with that of the ordinary O-type sealing element and the sealing element without the seam wings and the deformation waist installed on the lid surface of the same packaging box. The sealing methods of the lid surface of the packaging box using different practices and comparison examples have significant differences in their relevant sealing performance, as shown in Table 1.

[0046] Table 1 Comparison of implementation of high performance sealing method examples 1 to 2 and comparative examples 3 to 4.

[0047]

[0048]

[0049] The method for achieving high sealing performance of the lid surface of a packaging box of the present invention is suitable for guiding the lid surface sealing design of a packaging box with a large size and a large opening. The sealing method has been put into mass production practice on a variety of products, has stable and reliable sealing performance, has significant technological advantages and has exerted great economic value.

[0050] It can be seen from the above technical solutions that the present invention adopts the methods of fixed-distance locking, constant deformation compression, seam pasting and deformation waist to completely solve the current problem that the sealing performance of the packaging box cannot be long-term stable and reliable.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for achieving high sealing performance of the cover surface of a composite material packaging box, characterized in that: A sealing element with a flying wing seam-type tunnel and a deformation waist is installed on the cover surface of the packaging box, and the cover surface of the packaging box is locked at a fixed distance to form a constant deformation of the sealing element.

2. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 1, characterized in that: The sealing element comprises a seam, a flying wing, a tube tunnel and a deformation waist.

3. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 2, characterized in that: The sealing element is bent and slid along the equal-width special-shaped installation grooves opened on the cover surface of the packaging box through the pasting seam.

4. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 3, characterized in that: The sealing element is stabilized in the equal-width special-shaped installation groove by the flying wings.

5. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 4, characterized in that: The sealing element achieves moderate deformation through the combination of a deformation waist and a tube tunnel.

6. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 5, characterized in that: The sealing element is made of high-performance rubber extrusion molding and butt-jointed preparation.

7. The method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 6, characterized in that: The sealing surface is used for the top-opening packaging box. The sealing surface flange is provided with a lock for installing the cover and locking it, a sealing element with a wing-seam-type pipe tunnel and a deformation waist, the sealing element is compressed at a fixed distance in the normal direction of the flange, the sealing element is formed by extrusion and butted, and the sealing element is installed along the groove.

8. An application of the method for achieving high sealing performance of a composite material packaging box lid joint surface according to claim 6 in the box structure design of the packaging box lid joint surface.

9. An application of the method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 6 in the design of a cover surface sealing structure.

10. An application of the method for achieving high sealing performance of the cover surface of a composite material packaging box according to claim 6 in the design of a cover surface locking device.

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