CN110745375A - Sealed and anti-theft box body and sealed closing method - Google Patents
Sealed and anti-theft box body and sealed closing method Download PDFInfo
- Publication number
- CN110745375A CN110745375A CN201911232759.1A CN201911232759A CN110745375A CN 110745375 A CN110745375 A CN 110745375A CN 201911232759 A CN201911232759 A CN 201911232759A CN 110745375 A CN110745375 A CN 110745375A
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- composite film
- box body
- sealing
- heat sealing
- top cover
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Classifications
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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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/12—Container closures formed after filling by collapsing and flattening the mouth portion of the container and securing without folding, e.g. by pressure-sensitive adhesive, heat-sealing, welding or applying separate securing members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
- B65B51/227—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/184—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tabs over discharge openings, e.g. over discharge openings defined by tear or score lines
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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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
Abstract
The invention discloses a sealed closed and anti-theft box body and a sealed closing method, wherein the box body comprises a box body, a composite film is arranged between an upper top cover of the box body and an upper inner cover of the box body, the composite film consists of an OPP hard base material and a hot-fusible adhesive layer bonded with the OPP hard base material, the OPP hard base material is bonded and fixed with the edge of the inner side of the upper top cover, the hot-fusible adhesive layer is in point-type, section-type, wave-type and even integral instant high-temperature heat-sealing connection with the surface of the upper inner cover by an instant heat-sealing method, a puncture heat-sealing method or a perforation heat-sealing method, and two point-breaking dotted line cuts are punched at the position, right to the top of the upper top; the invention uses a special composite film, the composite film is arranged between the upper top cover and the upper inner cover of the box body, and various hot melting modes are adopted, so that the heat seal connection between the two cover bodies can be quickly realized, and the aims of high efficiency and quick seal closing of the box body are fulfilled.
Description
Technical Field
The invention relates to the field of packaging, in particular to a sealed and anti-theft box body and a sealed and closed method.
Background
The traditional box body sealing mode basically adopts box sealing glue and adhesive tape for sealing, so that the box is not environment-friendly, the sealing operation is more complicated, the cost of box sealing materials is increased, and the labor cost is also increased; even if a double-faced adhesive tape closed box body is adopted in a single box sealing mode, firstly, the requirement on the quality of the double-faced adhesive tape is very high, the imported adhesive material is more expensive, the cost burden is increased for manufacturers and consumers, particularly, the rapid development of the internet leads to the rapid blowout of the logistics express delivery industry, the white garbage (adhesive tape and double-faced adhesive tape) environment pollution caused by the packaging mode of the box body is a surprise, and then the traditional box body sealing mode can not meet the sealing requirement of the box body gradually.
Disclosure of Invention
The invention aims to provide a sealed and closed anti-theft box body and a sealed and closed method, and aims to solve the problem that the box body in the background technology is sealed by a box sealing adhesive and an adhesive tape, so that the cost of box sealing materials is increased, and the labor cost is also increased.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an environmental protection high efficiency and case box body of theftproof, includes the case box body, be equipped with the complex film between the upper cover of case box body and its upper inner cup, the complex film comprises OPP class stereoplasm substrate and rather than the hot melt adhesive layer that bonds, but OPP class stereoplasm substrate is fixed with the inboard edge bonding of upper cover, but hot melt adhesive layer carries out point type, section formula, wavy, or even integral multiple mode high temperature heat seal in the twinkling of an eye through the hot sealing legal system in the twinkling of an eye, puncture legal system or perforation legal system and the surface of upper inner cup and is connected, just the top of upper cover has two dotted line cuts of point formula of breaking through the punching press of pneumatic point cutting die with the just locating position of complex film.
As a preferred technical solution of the present invention, the heating device used in the instant heat sealing method is a first sealing device, the first sealing device is an electromagnetic induction type sealing machine, an aluminum foil substrate is bonded to a bonding position of the OPP-type hard substrate and the inner side of the upper top cover, and the hot-fusible adhesive layer is bonded and fixed to the surface of the upper inner cover through a plurality of hot-press welding points formed by heating with the electromagnetic induction type sealing machine.
As a preferred technical scheme of the invention, the heating device adopted in the piercing heat sealing method is a second sealing device, the second sealing device is a pneumatic heat sealing machine provided with a multi-corner heat sealing knife, and the hot-melt adhesive layer penetrates through the composite film through the multi-corner heat sealing knife and is bonded and fixed with the surface of the upper inner cover through an interpenetration welding point formed by heating the composite film.
As a preferred technical scheme of the present invention, the heating device adopted in the perforation heat sealing method is a third sealing device, the third sealing device is a pneumatic heat sealing machine equipped with a stamping heat sealing knife, the hot-melt adhesive layer is bonded and fixed with the surface of the upper inner cover through a punching welding point formed by stamping the composite film by a plurality of stamping heat sealing knives and heating the composite film, and a decorative sticker is attached to a position opposite to the punching welding point of the upper top cover.
As a preferred technical scheme of the invention, the edge of the upper top cover is provided with a folding piece extending outwards, and the composite film is adhered to the inner side of the inner folding piece and is instantaneously heat-sealed with the outer side of the box body at high temperature.
A sealing and closing method for the environmentally friendly, efficient and theft-proof box body comprises the following steps:
s1, selecting a material, namely using a soft composite film which can be melted and bonded at high temperature, wherein the composite film is a composite film base material formed by bonding a hot melt adhesive and a PET/OPP film, and adding an aluminum foil base material layer on the surface of an OPP hard base material when the composite film and the surface of an upper inner cover are bonded and fixed in an electromagnetic heating mode;
s2, sticking the selected composite film on the edge of the inner side of the upper top cover of the box body through box body machine packaging equipment, wherein the distance between the composite film and the edge is preferably 1 cm;
s3, embedding a blade in the template to manufacture a pneumatic point breaking cutting die, and punching two point breaking type dotted line notches on the outermost layer of the upper top cover and along the parallel edges of the composite film by using the pneumatic point breaking cutting die;
s4, the composite film is subjected to instant high-temperature heat sealing with the surface of the upper inner cover through an instant heat sealing method, a puncture heat sealing method or a perforation heat sealing method, after cooling and solidification, the upper top cover and the upper inner cover of the box body are sealed, and in order to ensure the attractiveness of the sealing of the upper top cover and the upper inner cover in the perforation heat sealing mode, decorative stickers can be attached to the punched holes of the upper top cover.
Compared with the prior art, the invention has the beneficial effects that: the box body which is sealed and closed and is anti-theft and the sealing and closing method have the following beneficial effects:
1) the composite film is arranged between the upper top cover and the upper inner cover of the box body by using a special composite film, and the heat sealing connection between the two cover bodies can be quickly realized by adopting a plurality of hot melting modes, so that the aims of high efficiency and quick sealing closure of the box body are fulfilled;
2) need not any instrument when the case box body is opened, tear the mouth through two dotted line incisions of point-break type on last top cap surface formation, fast enough convenient opening case box body.
3) The box body is sealed and closed without using a box sealing adhesive and a double-sided adhesive tape, and the box body can be sealed and closed mechanically, so that the box is environment-friendly, efficient, economic and antitheft.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a composite membrane structure according to the present invention;
FIG. 3 is a schematic view of a dotted line cut of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 5 is a second schematic structural diagram of embodiment 1 of the present invention;
FIG. 6 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 7 is a second schematic structural diagram of embodiment 2 of the present invention;
FIG. 8 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 9 is a second schematic structural diagram of embodiment 3 of the present invention;
FIG. 10 is a schematic structural view of example 4 of the present invention;
fig. 11 is a schematic structural diagram of embodiment 5 of the present invention.
In the figure: 1. a box body; 2. a top cover is arranged; 3. an upper inner cover; 4. compounding film; 41. an OPP-based hard base material; 42. a hot-fusible adhesive layer; 5. a dotted line cut; 6. a first sealing device; 7. a second sealing device; 8. a third sealing device; 9. hot pressing the welding point; 10. punching a welding point; 11. inserting welding points; 12. an aluminum foil substrate; 13. the ornament mark.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides an environment-friendly, efficient and anti-theft box body, comprising a box body 1, a composite film 4 is arranged between an upper top cover 2 of the box body 1 and an upper inner cover 3 thereof, the composite film 4 is composed of an OPP type hard substrate 41 and a hot-melt adhesive layer 42 bonded with the OPP type hard substrate, the OPP type hard substrate 41 is bonded and fixed with the inner side edge of the upper top cover 2, the hot-melt adhesive layer 42 is in point type, segment type, wave type or even integral type instant high-temperature heat sealing connection with the surface of the upper inner cover 3 by instant heat sealing method, puncture heat sealing method or perforation heat sealing method, two dotted line cuts 5 are punched at the position of the top of the upper top cover 2 opposite to the composite film 4 by a pneumatic dot-breaking cutter die, a heating device adopted in the instant heat sealing method is a first sealing device 6, the first sealing device 6 is an electromagnetic induction type sealing machine, and the bonding position of the OPP type hard substrate 41 and the inner side of the upper top cover 2 is provided with a substrate 12, the hot melt adhesive layer 42 is adhered and fixed with the surface of the upper inner cover 3 through a plurality of hot-pressing welding points 9 formed by heating through an electromagnetic induction type sealing machine.
Specifically, the method comprises the following steps:
the method comprises the following specific steps:
① composite film 4 selection:
a soft composite film 4 which can be melted and bonded at high temperature is used, the composite film 4 is a composite film base material formed by bonding a hot melt adhesive and a PET/OPP film, and when the composite film 4 and the surface of the upper inner cover 3 need to be bonded and fixed in an electromagnetic heating mode, a layer of aluminum foil base material 12 needs to be added on the surface of the OPP hard base material 41;
② the composite film 4 is bonded with the box body 1:
pasting the selected composite film 4 at the bottom of the upper top cover 2 of the box body 1 through box body machine packaging equipment, wherein the distance between the composite film 4 and the edge of the upper top cover 2 is preferably about 1 cm;
③ processing dotted line cut 5
The method is characterized in that a blade is inlaid in a template to manufacture a pneumatic point breaking cutting die, the pneumatic point breaking cutting die is utilized to punch two point breaking type dotted line notches 5 on the outermost layer of an upper top cover 2 and along the parallel edges of a composite film 4, or the pneumatic point breaking cutting die and a box body forming cutting die are used to integrally punch the upper top cover 2 of a box body 1, the upper top cover 2 and the point breaking type dotted line notches 5 are synchronously processed, the upper top cover 2 is ensured not to be broken while the attractiveness of the box body 1 is not influenced, and the upper top cover 2 between the two point breaking type dotted line notches 5 is convenient to tear;
④ high temperature heat sealing by instant heat sealing method
The instant high-temperature heat sealing is carried out on the surface of the composite film 4 and the surface of the upper inner cover 3 by using an instant heat sealing method, and the operation is as follows: the first sealing device 6 of the electromagnetic induction type sealing machine is adopted, meanwhile, a layer of aluminum foil base material 12 needs to be adhered to the bonding position of the OPP hard base material 41 and the inner side of the upper top cover 2, the upper top cover 2 and the upper inner cover 3 are closed, the principle that eddy current magnetic field is generated when electromagnetism is close to aluminum foil material is utilized, so that the aluminum foil material is heated instantly to achieve the magnetic-thermal conversion, the generated heat melts the hot-melt adhesive layer 42 of the composite film 4 to form a plurality of hot-press welding points 9, and is connected with the surface of the upper inner cover 3 in a heat seal way to complete the upper top cover 2 and the upper inner cover 3, thus achieving the purpose of sealing and closing the box body 1, not only not damaging the appearance of the box body, but also realizing the effective fusion of the hot-melt adhesive layer 42 and the upper inner cover 3, alternatively, the heat sealing may be performed by an ultrasonic machine or a high frequency machine, and the box body 1 may be sealed without damaging the box body 1.
Example 2
Referring to fig. 6-7, the present invention provides an environment-friendly, efficient and anti-theft box body, which comprises a box body 1, a composite film 4 is arranged between an upper top cover 2 and an upper inner cover 3 of the box body 1, the composite film 4 is composed of an OPP type hard base material 41 and a hot-melt adhesive layer 42 bonded with the OPP type hard base material, the OPP type hard base material 41 is bonded and fixed with the inner side edge of the upper top cover 2, the hot-melt adhesive layer 42 is in point type, segment type, wave type or even integral type instant high-temperature heat sealing connection with the surface of the upper inner cover 3 by an instant heat sealing method, a puncture heat sealing method or a perforation heat sealing method, two point-break type dotted line cuts 5 are punched at the position of the top of the upper top cover 2 opposite to the composite film 4 by a pneumatic point-break cutter die, a heating device adopted in the puncture heat sealing method is a second sealing device 7, the second sealing device 7 is a pneumatic heat sealing machine provided with a polygonal corner, the hot-melt adhesive layer 42 is adhered and fixed with the surface of the upper inner cover 3 through the penetration welding point 11 formed by the heat sealing knife at the polygon corner through the composite film 4 and heating the composite film.
The method comprises the following specific steps:
④ high-temperature heat sealing by puncture sealing method
By utilizing a puncture heat sealing method, the composite film 4 and the surface of the upper inner cover 3 are subjected to instant high-temperature heat sealing, and the method has the following specific operations: the second sealing device 7 of the pneumatic heat sealing machine provided with the polygonal heat sealing knife is adopted to close the upper top cover 2 and the upper inner cover 3, the polygonal heat sealing knife of the pneumatic heat sealing machine penetrates through the upper top cover 2 to punch the composite film 4 to break polygonal hole positions, the hot-melt adhesive layer 42 of the composite film 4 is melted at the high temperature of the polygonal heat sealing knife, and the formed interpenetration welding point 11 is bonded with the surface of the upper inner cover 3 in a heat sealing way, so that the purpose of sealing and closing the box body 1 is achieved, and the description is as follows: the more the cutting edges of the multi-corner heat sealing knife are, the better heat sealing effect of the hot melt adhesive layer 42 and the upper inner cover 3 can be ensured, meanwhile, the heat sealing method has no obvious influence on the appearance of the box body 1, and the formed puncture holes can be basically ignored.
Example 3
Referring to fig. 8-9, the present invention provides an environment-friendly, efficient and anti-theft box body, comprising a box body 1, a composite film 4 is arranged between an upper top cover 2 and an upper inner cover 3 of the box body 1, the composite film 4 is composed of an OPP type hard base material 41 and a hot-melt adhesive layer 42 bonded with the OPP type hard base material, the OPP type hard base material 41 is bonded and fixed with the inner side edge of the upper top cover 2, the hot-melt adhesive layer 42 is in point type, section type, wave type or even integral type instant high-temperature heat sealing connection with the surface of the upper inner cover 3 by an instant heat sealing method, a puncture heat sealing method or a perforation heat sealing method, two dotted line cuts 5 of point cutting type are punched at the position of the top of the upper top cover 2 opposite to the composite film 4 by a pneumatic point cutting die, a heating device adopted in the perforation heat sealing method is a third sealing device 8, the third sealing device 8 is a pneumatic heat sealing machine provided with a punching knife, the hot-melt adhesive layer 42 is formed by punching the composite film 4 by a plurality of punching hot-seal knives and heating the composite film to form a punching welding point 10 which is fixedly bonded with the surface of the upper inner cover 3, and the decorative paster 13 is pasted at the position right opposite to the punching welding point 10 of the upper top cover 2.
Specifically, steps ①, ②, and ③ described in example 1 also correspond to steps ①, ②, and ③ of the present example;
④ high temperature heat sealing by perforation heat sealing method
By using a perforation heat sealing method, the composite film 4 and the surface of the upper inner cover 3 are subjected to instant high-temperature heat sealing, and the operation is as follows: the third seal equipment 8 of pneumatic heat-sealing machine of adoption for installing punching press sealing knife closes top cap 2 and last inner cup 3, and the punching press sealing knife that utilizes pneumatic heat-sealing machine passes top cap 2 and the 4 punching press of complex film and is interrupted the hole site, but lets the heat formation welding point 10 that punches a hole of hot melt adhesive layer 42 of complex film 4 produced through punching press sealing knife to bond with the surface heat seal of last inner cup 3, thereby reach the sealed closed purpose of 1 box body, should supply the explanation to be: after the pneumatic heat sealing machine punches a hole on the surface of the upper top cover 2 by using the punching heat sealing knife, a high-frequency machine or an ultrasonic machine can be used for contacting the hot-melt adhesive layer 42 through the hole and punching downwards, so that the hot-melt adhesive layer 42 and the upper inner cover 3 are thermally sealed, and in order to ensure the attractiveness of sealing the upper top cover 2 and the upper inner cover 3 in a punching heat sealing mode, the decorative sticker 13 can be attached to the punching position of the upper top cover 2 to shield the punching hole.
Example 4
Referring to fig. 10, the present invention provides an environment-friendly, efficient and anti-theft box, which includes a box body 1, wherein the edge of the upper top cover 2 is provided with a folded piece extending outwards, a composite film 4 is adhered to the inner side of the folded piece and is instantly heat-sealed with the outer side of the box body 1 at high temperature, two dotted line cut-outs 5 in a point-broken manner are processed on the folded piece, the composite film 4 is adhered to the inner side of the folded piece, and the hot-fusible adhesive layer 42 and the box body 1 can be instantly heat-sealed in various heat-sealing manners.
Example 5
Referring to fig. 11, the case body 1 of the present invention can adopt a top-bottom case form, the composite film 4 is attached to the inner side of the upper case body, when the case body 1 needs to be sealed, the upper case body and the lower case body are sleeved and closed, the composite film 4 also adopts an instant heat sealing method, a piercing heat sealing method or a piercing heat sealing method to make the hot melt adhesive layer 42 and the surface of the lower case body perform point type, segment type, wave type or even integral type instant high temperature heat sealing, so as to realize the sealing and closing of the top-bottom case body 1.
A sealing and closing method for the environmentally friendly, efficient and theft-proof box body comprises the following steps:
s1, selecting materials, namely, using a soft composite film 4 which can be melted and bonded at high temperature, wherein the composite film 4 is a composite film base material formed by bonding a hot melt adhesive and a PET/OPP film, and when the composite film 4 and the surface of the upper inner cover 3 need to be bonded and fixed in an electromagnetic heating mode, adding an aluminum foil base material 12 on the surface of an OPP hard base material 41;
s2, sticking the selected composite film 4 to the edge of the inner side of the upper top cover 2 of the box body 1 by box body machine packaging equipment, wherein the distance between the composite film and the edge is about 1 cm;
s3, embedding a blade in a template to manufacture a pneumatic point breaking cutting die, and punching two point breaking type dotted line notches 5 on the outermost layer of the upper top cover 2 and along the parallel edges of the composite film 4 by using the pneumatic point breaking cutting die;
s4, the composite film 4 is subjected to instant high-temperature heat sealing between the hot-melt adhesive layer 42 and the surface of the upper inner cover 3 through an instant heat sealing method, a puncture heat sealing method or a perforation heat sealing method, after cooling and solidification, the upper top cover 2 of the box body 1 and the upper inner cover 3 are sealed, and in order to guarantee the attractiveness of sealing the upper top cover 2 and the upper inner cover 3 in a perforation heat sealing mode, the decorative sticker 13 can be attached to the punched hole of the upper top cover 2.
It should also be noted that: foretell 1 heat seal closed mode of many case box bodies can machine automated processing, also can manual formula machinery punching press, automatic punching press of electrodynamic type, semi-automatic formula automatic punching press and processing mechanisms such as full-automatic punching press seal closed, and the closed mode of 1 heat seal closed of multiple case box body can be chooseed for use in a flexible way in actual production, reduces packaging cost.
The box body 1 can be opened quickly, and as mentioned above, the upper top cover 2 at the position of the two point-breaking type dotted line notches 5 is torn to break the upper top cover 2, so that the box body 1 can be opened easily without using any foreign objects. This mode of sealed closed type not only saves joint sealing sticky tape cost, more can reject the double faced adhesive tape, and the sealed effect of complex film 4 is durable more reliable, and the use amount is few moreover, and low cost is high-efficient promptly, environmental protection again, and is more economical, satisfies the production demand of multiple packaging mode, and of course, this sealed closed method of case and box body 1 also not only restricts to paper packing carton sealed.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The box body comprises a box body (1) and is characterized in that a composite film (4) is arranged between an upper top cover (2) of the box body (1) and an upper inner cover (3) of the box body, the composite film (4) is composed of an OPP type hard base material (41) and a hot-melt adhesive layer (42) bonded with the OPP type hard base material, the OPP type hard base material (41) is bonded and fixed with the inner side edge of the upper top cover (2), the hot-melt adhesive layer (42) is in point-type, section-type, wave-type and even integral-type instant heat-sealing high-temperature connection with the surface of the upper inner cover (3) through an instant heat-sealing method, a puncture heat-sealing method or a perforation heat-sealing method, and two dotted line cuts (5) are punched at the position, right opposite to the top of the upper top cover (2) and the composite film (4), through a pneumatic point-cut cutting die.
2. The environmentally friendly, efficient and theft resistant case of claim 1, wherein: the heating device who adopts in the hot-melt method in the twinkling of an eye is first sealing equipment (6), first sealing equipment (6) are electromagnetic induction formula capper, and OPP type stereoplasm substrate (41) and the inboard bonding department of last top cap (2) bond and have aluminium foil substrate (12), but hot melt adhesive layer (42) are fixed with the surface bonding of last inner cup (3) through a plurality of hot pressing welding point (9) of electromagnetic induction formula capper heating formation.
3. The environmentally friendly, efficient and theft resistant case of claim 1, wherein: the heating device adopted in the puncture heat sealing method is a second sealing device (7), the second sealing device (7) is a pneumatic heat sealing machine provided with a multi-corner heat sealing knife, and the hot-melt adhesive layer (42) penetrates through the composite film (4) through the multi-corner heat sealing knife and is bonded and fixed with the surface of the upper inner cover (3) through an interpenetration welding point (11) formed by heating the composite film.
4. The environmentally friendly, efficient and theft resistant case of claim 1, wherein: the heating device adopted in the perforation heat sealing method is a third sealing device (8), the third sealing device (8) is a pneumatic heat sealing machine provided with a stamping heat sealing knife, the hot-melt adhesive layer (42) is fixedly bonded with the surface of the upper inner cover (3) through a punching welding point (10) formed by stamping the composite film (4) by multiple stamping heat sealing knives and heating the composite film, and the decorative sticker (13) is pasted at the position, right opposite to the punching welding point (10), of the upper top cover (2).
5. The environmentally friendly, efficient and theft resistant case of claim 1, wherein: the edge of the upper top cover (2) is provided with a folded piece extending outwards, and the composite film (4) is adhered to the inner side of the inner folded piece and is instantaneously thermally sealed with the outer side of the box body (1) at high temperature.
6. A method of sealing closure for the environmentally friendly, efficient and theft resistant enclosure of claims 1-5, comprising the steps of:
s1, selecting a material, namely using a soft composite film (4) which can be melted and bonded at high temperature, wherein the composite film (4) is a composite film base material formed by bonding a hot melt adhesive and a PET/OPP film, and when the composite film (4) and the surface of the upper inner cover (3) need to be bonded and fixed in an electromagnetic heating mode, a layer of aluminum foil base material (12) needs to be added on the surface of the OPP hard base material (41);
s2, pasting the selected composite film (4) on the edge of the inner side of the upper top cover (2) of the box body (1) through box body machine packaging equipment, wherein the distance between the composite film and the edge is preferably 1 cm;
s3, embedding a blade in a template to manufacture a pneumatic point breaking cutting die, and punching two point breaking type dotted line notches (5) on the outermost layer of the upper top cover (2) and along the parallel edges of the composite film (4) by using the pneumatic point breaking cutting die;
s4, the composite film (4) is subjected to instant high-temperature heat sealing on the surface of the hot-fusible adhesive layer (42) and the surface of the upper inner cover (3) through an instant heat sealing method, a puncture heat sealing method or a perforation heat sealing method, after cooling and solidification, sealing of the upper top cover (2) and the upper inner cover (3) of the box body (1) is achieved, and in order to guarantee the attractiveness of sealing the upper top cover (2) and the upper inner cover (3) in a perforation heat sealing mode, the decorative sticker (13) can be attached to the punching position of the upper top cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232759.1A CN110745375A (en) | 2019-12-05 | 2019-12-05 | Sealed and anti-theft box body and sealed closing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232759.1A CN110745375A (en) | 2019-12-05 | 2019-12-05 | Sealed and anti-theft box body and sealed closing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110745375A true CN110745375A (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911232759.1A Pending CN110745375A (en) | 2019-12-05 | 2019-12-05 | Sealed and anti-theft box body and sealed closing method |
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| Country | Link |
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| CN (1) | CN110745375A (en) |
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