CN212686351U - Plastic package unsealing structure - Google Patents

Abstract

The utility model discloses a plastic package unsealing structure, which comprises a package piece, a plastic package film and a traction line which is arranged by being attached to the plastic package film after being sealed outside the package piece in a plastic way; the plastic packaging film is provided with a notch, one end of the traction line is positioned outside the notch, and the other end of the traction line is fixed with the plastic packaging film or the packaging piece. The utility model provides a plastic envelope structure of unsealing sets up the line of drawing in prior art on present plastic envelope membrane, changes into the plastic envelope membrane laminating setting that makes after line of drawing and the plastic envelope packing, and the plastic envelope packing that this mode formed does not have the fold in line of drawing department, and the outward appearance is neat, and the roughness is high, can avoid tearing the plastic envelope membrane or causing the thermal plastic envelope of shrink membrane bad at plastic envelope shrink in-process.

Description

Plastic package unsealing structure

Technical Field

The utility model relates to a product packaging technical field, more specifically say, relate to a plastic envelope structure of unsealing.

Background

At present, more high-grade electronic product packing adopts the plastic envelope mode to prevent damp and tear open the packing more, because the opening of plastic envelope membrane is destructive irreversible process, this makes the consumer after purchasing the product, can confirm that the product is the brand-new product that does not tear open and seal. The plastic packaging film can shrink when being heated or placed in other ray environments, so that the packaging surface of a product can form a very flat state under the action of the tensile force of the film, and a neat visual effect is achieved. Adopt highlight or mute light shrink film plastic envelope retail packing carton, can effectively promote the light contrast of electronic product packing, the constraint effect of shrink film can make product packaging box edges and corners obvious, helps promoting the holistic science and technology style of packing.

Because the plastic packaging film is subjected to the action of material shrinkage force in the shrinkage process to increase the pore structure on the surface of the film, a large-area cavity is formed in a pre-cut before plastic packaging shrinkage due to stretching of the plastic packaging film, or the plastic packaging film is torn in the shrinkage process to cause poor thermal plastic packaging of the shrinkage film.

In the preparation process, the rib structure is added as a unsealing line or an unsealing line stuck with other materials, so that the contraction ratio of the position of the unsealing line is inconsistent with that of the heat shrinkable film, and the problems of wrinkles and the distortion of the unsealing line can be caused in the thermoplastic sealing process, so that the unsealing line cannot be stuck on the shrinkable film before the thermoplastic sealing operation, and the unsealing structure easy to tear is formed.

The conventional unpacking lines are adhered to the inner side of the raw material of the plastic packaging film, and the plastic packaging film is formed in a folding mode.

In summary, how to provide a shrink plastic packaging process suitable for electronic products is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a plastic envelope structure of unsealing, can not form fold and distortion after this structure shaping, the surface is neat pleasing to the eye, and can conveniently realize the operation of unsealing.

In order to achieve the above object, the present invention provides the following technical solutions:

a plastic packaging and unpacking structure comprises a packaging piece, a plastic packaging film and a traction line, wherein the traction line is attached to the plastic packaging film after being packaged outside the packaging piece in a plastic packaging mode;

the plastic packaging film is provided with an incision, one end of the traction line is located outside the incision, and the other end of the traction line is fixed with the plastic packaging film or the plastic packaging film.

Preferably, a handle is arranged at the end part, close to the notch, of the traction line, and the stress concentration point of tearing of the notch coincides with the handle or coincides with the position, close to the handle, of the traction line.

Preferably, the plastic packaging film is provided with an easy-to-tear portion extending outwards or towards the other stress concentration point.

Preferably, the pull handle comprises an adhesive part and a non-adhesive part, the non-adhesive part is connected to the adhesive part, and the adhesive part is connected to the main body of the traction line;

the viscose part bonds and covers in the incision or stress concentration point, and/or, the portion of not gluing be equipped with the plastic envelope surface forms the broken line in advance of predetermineeing the angle.

Preferably, the number of the pulling lines comprises at least two, the pulling lines respectively extend along different directions, or the pulling lines are located at different positions of the packaging.

Preferably, the traction line is a built-in traction line which is partially clamped between the packaging piece and the plastic packaging film, and one end of the traction line is fixed on the packaging piece;

or the traction line is an external traction line which is partially stuck to the outside of the plastic packaging film after the plastic packaging.

Preferably, the traction line is arranged around the package, or the traction line is arranged around the package in a spiral shape.

Preferably, the plastic package film comprises one of a plastic package film formed by unidirectional stretching, a plastic package film formed by bidirectional stretching or a plastic package film formed by additive compounding.

Preferably, the plastic packaging film is provided with at least two notches on the same side face of the packaging piece, the traction line penetrates through all the notches, and one end of the traction line is fixed with the plastic packaging film; and/or the incision is a negative pressure suction cutting incision.

Preferably, the traction line comprises a straight line, a bending line or a bending line.

The utility model provides a plastic envelope structure of unsealing sets up the traction line before with the plastic envelope among the prior art, changes into the plastic envelope membrane laminating setting after with traction line and the plastic envelope packing into, and the plastic envelope packing that this mode formed does not have the fold in traction line department, and the outward appearance is neat, and the roughness is high, can avoid tearing the plastic envelope membrane or causing the thermal plastic envelope of shrink membrane to seal badly in the plastic envelope shrink in-process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a pulling line in a plastic package unsealing structure provided by the present invention;

fig. 2 is a top view of the utility model with the pull line not torn;

fig. 3 is a schematic view of the plastic sealing/unsealing structure provided by the present invention, which is provided with an adhesive part;

fig. 4 is a schematic structural view of the plastic sealing and unsealing structure provided by the present invention;

FIG. 5 is a schematic view of the first embodiment at A in FIG. 4;

FIG. 6 is a schematic view of the second embodiment at A in FIG. 4;

FIG. 7 is a schematic view of a tear condition with a pull line disposed around the package;

FIG. 8 is a schematic view of a pull line extending a short distance;

FIG. 9 is an enlarged fragmentary view of the tear-open condition at B in FIG. 8;

fig. 10 is a schematic tear-away view of a pull line in the form of a loop.

In FIGS. 1-10:

1 is a packaging piece, 2 is a plastic packaging film, and 3 is a traction line;

21 is a cut, 22 is a stress concentration point, 23 is a tearing opening, 24 is a seal-removing line, and 25 is an easy-tearing part;

31 is a handle, 311 is a non-adhesive part, 312 is an adhesive part, 313 is a mark, and 32 is a fixed end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a plastic envelope structure of unsealing, can not form fold and distortion after this structure shaping, the surface is neat pleasing to the eye, and can conveniently realize the operation of unsealing.

The utility model provides a plastic envelope structure of unsealing, mainly used encapsulation product, wherein, the plastic envelope structure of unsealing include package 1, plastic envelope membrane 2 and with the plastic envelope in the package 1 outside behind the plastic envelope membrane 2 laminating setting draw lines 3.

The plastic packaging film 2 is provided with a notch 21, one end of the traction line 3 is positioned outside the notch 21, and the other end of the traction line is fixed with the plastic packaging film 2 or the packaging piece 1.

The package 1 refers to a structure which requires shrink wrapping of a plastic film 2, and is typically a package of products, or may be products directly. The shape of the package 1 can be varied and, in the case of product packages, is often of a hexahedral or cylindrical configuration.

The plastic packaging film 2 is a film formed by plastic packaging shrinkage to the package 1 and is tightened and coated, and the material and type can be specifically referred to the prior art. The notch 21 is a small opening on the plastic packaging film 2, and the plastic packaging film 2 can be torn in a large area by tearing the notch 21 on the plastic packaging film 2. The notch 21 may be formed by cutting or the like after the plastic package is completed.

The traction line 3 can be linear or strip-shaped and the like, has certain strength or toughness, and the strength of the traction line is obviously higher than that of the plastic packaging film 2 in the tearing process. The pulling string 3 may be of any shape, such as straight, curved or bent segments.

After the plastic package film 2 is wrapped on the package member 1 in a plastic package manner and is subjected to plastic package shrinkage, the traction line 3 is attached to the plastic package film 2 which is subjected to plastic package. One end of the pulling strip 3 is positioned at the notch 21 and extends out of the notch, and the notch 21 can be torn by pulling the end of the pulling strip 3; the other end of the traction line 3 is connected with the plastic packaging film 2 or the packaging piece 1, and when the traction line 3 is pulled, the end can be used as a fixed end 32, so that the plastic packaging film 2 is conveniently separated from the packaging piece 1 by pulling force. In addition, when the pull string 3 is actually provided, the end of the pull string 3 remote from the notch 21 is fixed, and the pull string 3 can be used to the maximum extent, and the fixed end 32 is not limited to the end of the pull string 3, and may be other position on the pull string 3 than the end near the notch 21.

It should be noted that the traction lines 3 are not pre-disposed on the plastic packaging film 2 and then attached by plastic packaging operation, but are attached to the plastic packaging film 2 after the plastic packaging operation, including being disposed inside the plastic packaging film 2 or outside the plastic packaging film 2.

The traction line 3 is placed or fixed on the packaging piece 1 through the traction line arranged inside the plastic packaging film 2, and then plastic packaging operation is carried out outside the packaging piece 1 and the traction line 3, so that the plastic packaging film 2 wraps the traction line 3 on the surface of the packaging piece, and the traction line 3 is attached to the plastic packaging film. Or after the plastic package is finished, the traction line 3 is bonded outside the plastic package film 2 to form an external traction line 3. What this embodiment protected is that form the pulling strip 3 with plastic packaging film 2, the laminating setting of package 1 after the plastic packaging, be different from the mode that will pull strip 3 setting in advance on plastic packaging film 2 and carry out the plastic envelope operation along with plastic packaging film 2, the operation mode that this application provided is not restricted to above-mentioned two kinds of circumstances, and other realizable modes all belong to the protection scope of this application.

The application provides a plastic envelope structure of unsealing will set up the drawing lines 3 and carry out the plastic envelope again on plastic envelope membrane 2 of not plastic envelope in advance, change into the plastic envelope membrane laminating setting behind drawing lines 3 and the plastic envelope packing, and the plastic envelope packing that this mode formed does not have the fold in drawing lines 3 department, and the outward appearance is neat, and the roughness is high, can avoid tearing the plastic envelope membrane or causing the bad scheduling problem of heat plastic envelope of shrink membrane at the plastic envelope shrink in-process.

In addition to the above embodiments, the end of the pull line 3 near the cut 21 is provided with a pull tab 31, and the stress concentration point 22 of the tear of the cut 21 coincides with the pull tab 31 or with the position of the pull line 3 near the pull tab 31.

The slit 21 provided in the plastic film 2 has a stress concentration point 22, and the plastic film 2 can be easily torn by pulling the plastic film 2 at the stress concentration point 22. The pull handle 31 of the pull line 3 is a position convenient for applying a pulling force, and the position coincides with the stress concentration point 22, specifically, the pull handle 31 coincides with the vertex position of the cut 21, and certainly, the pull handle 31 is not limited to only coincide with the stress concentration point 22, and may also be a position on the pull line 3 near one end of the pull handle.

Wherein, stress concentration point 22 can include multiple easily tear the structure, and stress concentration point 22's formation can change the molecule combination structure of the plastic envelope membrane 2 of this position through the mode of chemical corrosion or ray irradiation, realizes the modification to this position, causes stress concentration's characteristics.

On the basis of the above-described embodiment, the mold film 2 is provided with the tear facilitating portion 25 extending outward from the stress concentration point 22 or toward another stress concentration point 22.

The form of the tear portion 25 is various, and may be a line, a break line, or the like cut by laser, and the position thereof extends from the center of the stress concentration point 22 to the outside, and when two stress concentration points 22 are included, the tear portion 25 may extend from one stress concentration point 22 to the other stress concentration point 22. When more than two stress concentrators 22 are included, a tear portion 25 may be formed between any of the stress concentrators 22.

The tear-off portion 25 may be disposed along the handle 31, and the tear-off portion 25 may be specifically an opening formed by chemical etching or radiation irradiation. The opening has a portion that is closer to the pull tab than the stress concentration point 22 so that when the pull line 3 is pulled, that portion of the opening fits over and is pulled along the pull line 3.

On the basis of the above embodiment, the handle 31 includes the adhesive part 312 and the non-adhesive part 311, the non-adhesive part 311 is connected to the adhesive part 312, and the adhesive part 312 is connected to the main body of the pull line 3;

the adhesive part 312 is adhered to and covers the notch 21 or the stress concentration point 22, and/or the non-adhesive part 311 is provided with a pre-folding line forming a predetermined angle with the surface of the plastic packaging film 2.

Specifically, the pull tab 31 may be a portion of the pull cord 3 that extends out of the cutout 21, or a separate structure that is attached to a portion of the pull cord 3 that extends out of the cutout 21.

Taking the latter as an example, the adhesive portion 312 is connected to the end of the pull strip 3, the adhesive portion 312 covers the cut 21 by its own adhesiveness, or only the stress concentration point 22, thereby protecting the integrity of the stress concentration point 22 when not unsealed; for facilitating the hand operation, the non-adhesive part 311 is connected to the adhesive part 312, and the non-adhesive part 311 and the surface of the plastic packaging film 2 have a preset angle, and can be formed by setting a pre-folding line at the non-adhesive part 311.

Optionally, referring to fig. 6, in order to further facilitate the user to identify the position of the handle 31, a mark 313 such as a special pattern or a character is disposed on the non-adhesive portion 311, or a striking color may be disposed.

Alternatively, the location of the pull handle 31 may be arranged at the position of the ridge formed by the package 1.

Optionally, the glue applying position of the handle 31, i.e. the glue applying part 312, extends in a strip shape to form a closed loop or a half loop structure, so as to assist the plastic packaging film 2 to be peeled off along the handle pulling direction;

on the basis of the above-described embodiment, the number of the pulling strips 3 includes at least two, and the pulling strips 3 respectively extend in different directions, or the pulling strips 3 are located at different positions of the package 1.

The tearing of the plastic packaging film 2 can be realized by arranging one traction line 3 outside the packaging part 1, and of course, a plurality of traction lines 3 can also be arranged, and the extending angle can be towards different directions, for example, the extending angle of two traction lines 3 can be 180 degrees. Or several pull strings 3 are arranged in parallel but at different positions on the package 1, for example one pull string 3 on the top side of the package 1 and another pull string 3 on the bottom side of the package 1.

On the basis of the above embodiment, the pulling strip 3 is a built-in pulling strip which is partially clamped between the packaging member 1 and the plastic sealing film 2, and one end of the pulling strip 3 is fixed on the packaging member 1.

The manufacturing method is that one or more traction lines 3 are placed on the package piece 1, one end of each traction line is fixed on the package piece 1, the whole package is subjected to plastic package, and the traction lines 3 are located between the plastic package film 2 and the package piece 1 wrapped by the plastic package film 2 after the plastic package. At this time, the notch 21 may be provided in the mold film 2 at the position of the non-fixed end of the draw bar 3, and the end of the draw bar 3 may be led out of the notch 21 so as to be positioned outside the notch 21. Alternatively, the end portion may be used as a pull tab 31, or may be coupled to the pull tab 31.

Or the traction line 3 is an external traction line 3 which is partially stuck to the outside of the plastic package film 2 after plastic package. The traction line 3 can be adhered or fixed on the plastic packaging film 2 in other modes, so that the plastic packaging film 2 can be driven to tear in the tearing process. Optionally, the adhesive is adhered to the outer surface of the plastic packaging film 2 by using a high-strength adhesive, so that when the handle 31 is peeled off, the tear notch 23 extends from the stress concentration point 22 of the plastic packaging film 2 along the length direction of the attached traction line 3. Compared with the method that the traction line 3 is arranged on the package 1 before plastic packaging, the method that the traction line is pasted after plastic packaging has higher flexibility.

Optionally, the line 3 that pulls that provides in this application specifically can be for high strength line, high strength lines etc. high strength indicates that self fracture can not take place at tearing the in-process usually, and intensity is greater than the intensity of plastic envelope membrane 2, can drive through tearing and tear rather than the plastic envelope membrane 2 of laminating.

When the plastic package structure is disassembled, the tearing opening 23 of the plastic package film can be extended to the fixed end 32 of the linear or strip-shaped structure along the high-strength linear or strip-shaped structure by slightly tearing the handle 31, so that the plastic package film 2 is torn.

On the basis of the above-described embodiment, the pulling strip 3 is arranged around the package 1, or the pulling strip 3 is arranged around the package 1 in a spiral.

Referring to fig. 10, the pulling string 3 is disposed around the tub-shaped package 1, and referring to fig. 7, the pulling string 3 is disposed around the hexahedral package 1. Of course, it is also possible to provide the package 1 with a helical winding, which allows more plastic film 2 to be removed when removing the pull strip 3.

On the basis of the above embodiment, the plastic film 2 includes one of a plastic film formed by unidirectional stretching, a plastic film formed by bidirectional stretching, or a plastic film formed by additive composite molding.

Specifically, when the plastic packaging film is made of PVC, PET, or PE having a specific stress direction, a strip-shaped tear 23 may be generated. Optionally, after the strip-shaped tearing opening 23 forms a closed ring on the surface of the packaging member 1, the plastic sealing films on two sides of the annular tearing opening can be peeled off by touching or naturally fall off.

Correspondingly, a biaxially oriented plastic film 2 may be used, in which case the direction of the tearing operation may extend to the side in the tearing direction, or may extend only a short distance to the outside at the position of the cut, and in which case the plastic film on the surface of the package may be further peeled off manually through the created tear 23.

Be provided with the tear-off line 24 on plastic envelope membrane 2, the tear-off line 24 can be for having fretwork or laser cutting's line isotructure, can set up two tear-off lines 24 along 3 length direction of line of drawing, and be located the both sides of drawing line 3 respectively, makes tear-off line 24 and the line of drawing 3 non-overlapping settings to enlarge the range of tearing that draws line 3.

The prior art provides for the cut 21 to be generally selected by direct cutting, but to some extent to cause damage to the package 1.

Optionally, incision 21 absorbs the cutting incision for the negative pressure, and incision 21 that provides in this application can adopt the operation of carrying out the negative pressure pull-up to the plastic envelope membrane after the plastic envelope, cuts the membrane of pulling up again to form the cutting incision, in order to avoid directly cutting the incision, lead to fish tail package surface.

On the basis of any one of the above embodiments, the plastic packaging film 2 is provided with at least two notches 21 on the same side surface of the packaging member 1, the pulling lines 3 penetrate through all the notches 21, one end of each pulling line 3 is fixed on the surface of the plastic packaging film 2, and the other end of each pulling line 3 is connected with the handle 31.

The above case is applied to a form in which the traction lines 3 are provided on the outer surface of the plastic film 2 after the plastic molding is completed. Specifically, a plastic package film 2 is arranged outside the package member 1 and plastic package is completed, then two or more than two notches 21 are arranged on the surface of the plastic package film 2 through negative pressure cutting and other forms, then the traction line 3 penetrates through one notch 21, moves to the other notch 21 inside the plastic package film 2 and penetrates out, one of the traction lines 3 at the two notches 21 is fixed with the plastic package film 2, and the other one is used as a handle 31 or is connected with a handle 31 structure.

The mode that this embodiment provided has richened the arrangement mode of pulling the lines 3 to for the flexibility sets up the position of pulling the lines 3 and provide the possibility.

On the basis of any of the above-described embodiments, the pulling strand 3 comprises a straight strand, a bent strand or a bent strand. Meanwhile, the traction line 3 further comprises a spiral line, an opposite line and the like.

Except for the main structure and connection relationship of the plastic package unsealing structure in each of the above embodiments, please refer to the prior art for the structure of other parts of the plastic package unsealing structure, and details are not repeated herein.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a plastic envelope structure of unsealing introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The plastic packaging and unpacking structure is characterized by comprising a packaging piece (1), a plastic packaging film (2) and a traction line (3) which is attached to the plastic packaging film (2) after being packaged outside the packaging piece (1) in a plastic packaging way;

the plastic packaging film (2) is provided with a notch (21), one end of the traction line (3) is located outside the notch (21), and the other end of the traction line is fixed with the plastic packaging film (2) or the packaging piece (1).

2. A plastic package unsealing structure according to claim 1, characterized in that a pull handle (31) is provided at an end of the pull line (3) near the cut (21), and a stress concentration point (22) of the tear of the cut (21) coincides with the pull handle (31), or coincides with a position of the pull line (3) near the pull handle (31).

3. A plastic envelope unpacking structure according to claim 2, characterized in that the plastic envelope film (2) is provided with a tear-off portion (25) extending outwardly from the stress concentration point (22) or towards another stress concentration point (22).

4. A plastic package de-encapsulation structure according to claim 2, wherein the handle (31) comprises an adhesive part (312) and a non-adhesive part (311), the non-adhesive part (311) is connected to the adhesive part (312), and the adhesive part (312) is connected to the main body of the pulling strip (3);

viscose portion (312) bond and cover in incision (21) or stress concentration point (22), and/or, do not viscose portion (311) be equipped with plastic packaging film (2) surface forms the broken line in advance of predetermineeing the angle.

5. A plastic envelope release structure according to claim 2, characterized in that the number of the pulling strips (3) comprises at least two, the pulling strips (3) extend in different directions respectively, or the pulling strips (3) are located at different positions of the package (1).

6. A plastic envelope release structure according to any one of claims 1 to 5, characterized in that the pulling strip (3) is a built-in pulling strip which is partially clamped between the package member (1) and the plastic envelope film (2), one end of the pulling strip (3) being fixed to the package member (1);

or the traction line (3) is an external traction line (3) which is partially stuck to the outside of the plastic packaging film (2) after plastic packaging.

7. A plastic envelope release structure according to claim 6, characterized in that the pulling strips (3) are arranged around the package (1) or that the pulling strips (3) are arranged in a spiral around the package (1).

8. A plastic package de-sealing structure according to any one of claims 1 to 5, wherein the plastic package film (2) comprises one of a plastic package film formed by unidirectional stretching, a plastic package film formed by bidirectional stretching, or a plastic package film formed by additive compounding.

9. A plastic envelope structure according to any one of claims 2 to 5, characterized in that the plastic envelope film (2) is provided with at least two said cuts (21) on the same side of the package (1), the pulling strip (3) passes through all the cuts (21), and one end of the pulling strip (3) is fixed with the plastic envelope film (2); and/or the incision (21) is a negative pressure suction cutting incision.

10. A plastic envelope release structure according to any one of claims 1 to 5, characterized in that the pulling strips (3) comprise straight, bent or bent strips.

Images