CN110745375A - Sealed and anti-theft box body and sealed closing method - Google Patents

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

A sealed, closed and anti-theft box body and a sealed and closed method

technical field

The invention relates to the field of packaging, in particular to a box body and a sealing and closing method that are sealed and closed and anti-theft.

Background technique

The traditional box body sealing method basically uses sealing glue and tape to seal, not only is not environmentally friendly, but also the sealing operation is cumbersome, which increases the cost of sealing materials and labor costs; even if individual sealing methods are sealed with double-sided tape The box body, first of all, has high requirements for the quality of double-sided adhesive tape, and imported adhesive materials are even more expensive, which increases the cost burden on both manufacturers and consumers, especially the rapid development of the Internet, which has led to a rapid blowout in the logistics and express delivery industry. The environmental pollution of white garbage (tape, double-sided tape) caused by the packaging method of the box body is even more shocking, and then the traditional sealing method of the box body can gradually fail to meet the sealing requirements of the box body.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a sealed and closed and anti-theft box body and a sealing and closing method, so as to solve the problem that the box body proposed in the above-mentioned background art adopts the sealing method of sealing glue and tape, which increases the cost of sealing materials and also reduces the cost of sealing. Increased labor costs.

In order to achieve the above purpose, the present invention provides the following technical solutions: an environmentally friendly, efficient and anti-theft box body, comprising a box box body, a composite film is provided between the upper top cover and the upper inner cover of the box box body, and the The composite film is composed of an OPP type hard base material and a hot melt adhesive layer bonded thereto. The OPP type rigid base material is bonded and fixed with the inner edge of the upper cover, and the hot melt adhesive layer is heated The surface of the upper inner cover is thermally connected at high temperature in a variety of ways, including point type, segment type, wave type, and even integral type, and the top of the upper cover is directly connected to the surface of the composite film. There are two point-breaking dotted line incisions punched by the pneumatic point-breaking die at the opposite position.

As a preferred technical solution of the present invention, the heating device used in the instant thermal method is a first sealing device, the first sealing device is an electromagnetic induction sealing machine, and the OPP type hard substrate and the upper cover An aluminum foil base material is adhered to the inner side of the adhesive layer, and the hot-melt adhesive layer is adhered and fixed to the surface of the upper inner cover by a plurality of hot-pressure welding points formed by heating by an electromagnetic induction sealing machine.

As a preferred technical solution of the present invention, the heating device used in the puncture heat method is a second sealing device, and the second sealing device is a pneumatic heat sealing machine equipped with a polygonal corner heat sealing knife. The melt adhesive layer passes through the composite film through a polygonal heat sealing knife and heats it to form an interpenetrating welding point which is bonded and fixed with the surface of the upper inner cover.

As a preferred technical solution of the present invention, the heating device used in the perforation heat method is a third sealing device, and the third sealing device is a pneumatic heat sealing machine equipped with a stamping heat sealing knife. The adhesive layer is bonded and fixed to the surface of the upper inner cover by stamping the composite film with a multi-stamping heat-sealing knife and heating it to form the punched welding point, and a decorative sticker is affixed to the position directly opposite the upper top cover and the punched welding point. .

As a preferred technical solution of the present invention, the edge of the upper cover is provided with outwardly extending flaps, and the composite film is bonded to the inner side of the inner flaps, and is instantly heat-sealed with the outside of the box body at high temperature.

A sealing and closing method for the above-mentioned environmentally friendly, efficient and anti-theft box body, comprising the following steps:

S1. Material selection, use a soft composite film that can be melted and bonded at high temperature. The composite film is a composite film substrate formed by bonding hot melt adhesive and PET/OPP film. Electromagnetic heating is used to combine the composite film. When the film and the surface of the upper inner cover are bonded and fixed, it is necessary to add a layer of aluminum foil substrate on the surface of the OPP type hard substrate;

S2. Paste the selected composite film on the inner edge of the upper top cover of the box body through the box body machine packaging equipment, about 1 cm away from the edge;

S3. Use the blade to be embedded in the template to make a pneumatic point-breaking knife die, and use the pneumatic point-breaking knife mold to punch out two point-breaking dashed incisions along the parallel edge of the composite film on the outermost layer of the upper cover;

S4. The composite film makes the hot melt adhesive layer and the surface of the upper inner cover instantly heat-bonded at high temperature through the instant heat method, the puncture heat method or the perforation heat method. After cooling and solidification, the upper top cover and the upper inner cover of the box body are realized. In order to ensure the beauty of the sealing of the upper top cover and the upper inner cover by the perforated heat sealing method, decorative stickers can be attached to the punching holes of the upper top cover.

Compared with the prior art, the beneficial effects of the present invention are as follows: a sealed and anti-theft box body and a sealed and closed method of the present invention have the following beneficial effects:

1) Use a special composite film, place the composite film between the upper top cover and the upper inner cover of the box body, and adopt a variety of hot-melting methods to quickly realize the heat-sealing connection between the two covers, and achieve The purpose of efficient and fast sealing and closing of the box body;

2) No tools are required to open the box body. The tearing opening formed by the two dotted dotted line incisions on the surface of the top cover is enough to open the box body quickly and conveniently.

3) The sealing and closing of the box body does not require the use of sealing glue and double-sided tape. The sealing and closing of the box body can be mechanized, environmentally friendly, efficient, and economical and anti-theft.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the composite membrane structure schematic diagram of the present invention;

Fig. 3 is the point-break type dashed line incision structure schematic diagram of the invention;

4 is one of the schematic structural diagrams of Embodiment 1 of the present invention;

FIG. 5 is the second schematic structural diagram of Embodiment 1 of the present invention;

6 is one of the schematic structural diagrams of Embodiment 2 of the present invention;

FIG. 7 is the second schematic structural diagram of Embodiment 2 of the present invention;

FIG. 8 is one of the schematic structural diagrams of Embodiment 3 of the present invention;

Fig. 9 is the second structural schematic diagram of Embodiment 3 of the present invention;

10 is a schematic structural diagram of Embodiment 4 of the present invention;

FIG. 11 is a schematic structural diagram of Embodiment 5 of the present invention.

In the figure: 1. Box body; 2. Top cover; 3. Upper inner cover; 4. Composite film; 41. OPP type hard base material; 42. Hot melt adhesive layer; ; 6. The first sealing equipment; 7. The second sealing equipment; 8. The third sealing equipment; 9. The hot-press welding point; 10. The punching welding point; Decorative stickers.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

1-5, the present invention provides an environmentally friendly, efficient and anti-theft box body, including a box box body 1, a composite film 4 is provided between the upper top cover 2 and the upper inner cover 3 of the box box body 1, The composite film 4 is composed of an OPP-type hard substrate 41 and a hot-melt adhesive layer 42 bonded thereto. The OPP-type hard substrate 41 is bonded and fixed to the inner edge of the upper top cover 2, and the hot-melt adhesive layer 42 passes through Instantaneous thermal bonding, puncturing thermal bonding or perforating thermal bonding is performed on the surface of the upper inner cover 3 by means of point, segment, wave, or even integral thermal bonding at high temperature instantaneously, and the top of the upper top cover 2 is connected to the composite film. 4 is punched by a pneumatic point-breaking knife die with two point-breaking dashed incisions 5. The heating device used in the instant thermal method is the first sealing device 6, and the first sealing device 6 is an electromagnetic induction type sealing machine. And the OPP type hard base material 41 and the inner side of the upper cover 2 are bonded with the aluminum foil base material 12, and the hot melt adhesive layer 42 is heated by an electromagnetic induction sealing machine to form a plurality of hot pressing welding points 9 and the upper cover. The surface of the inner cover 3 is bonded and fixed.

Specifically, the specific steps are as follows:

Specific steps are as follows:

①Composite film 4 to choose:

Use a soft composite film 4 that can be melted and bonded at high temperature. The composite film 4 is a composite film substrate formed by bonding hot melt adhesive and PET/OPP type film. Electromagnetic heating is used to connect the composite film 4 to the composite film. When the surface of the upper inner cover 3 is bonded and fixed, it is also necessary to add a layer of aluminum foil substrate 12 on the surface of the OPP type hard substrate 41;

②The composite film 4 is bonded to the box body 1:

The selected composite film 4 is pasted on the bottom of the upper top cover 2 of the box body 1 through the box body machine packaging equipment, and the composite film 4 is preferably about 1 cm away from the edge of the upper top cover 2;

③ Machining point break type dotted line notch 5

Use the blade to be embedded in the template to make a pneumatic point-breaking knife die, use the pneumatic point-breaking knife mold to punch out two point-breaking dotted line incisions 5 on the outermost layer of the upper top cover 2 and along the parallel edges of the composite film 4, or make The pneumatic point-breaking knife die together with the box-box body forming knife mold integrally punches the upper top cover 2 of the box body 1, and simultaneously processes the upper top cover 2 and the point-breaking dotted line incision 5, without affecting the appearance of the box body 1. At the same time, it is also ensured that the upper top cover 2 will not be broken, and at the same time, it is convenient for the upper top cover 2 between the two point-breaking dashed incisions 5 to be torn;

④Using instant heat method for high temperature heat sealing

Using the instantaneous heat method, the composite film 4 and the surface of the upper inner cover 3 are heat-sealed at high temperature instantaneously. A layer of aluminum foil base material 12 needs to be adhered to the inner side of the cover 2, and the upper top cover 2 and the upper inner cover 3 are closed. Using the principle of eddy current magnetic field generated when the electromagnetic and aluminum foil material are close, the aluminum foil material is instantly heated up to the magnetic heat. After conversion, the heat generated heat-melts the hot-melt adhesive layer 42 of the composite film 4 to form a plurality of hot-press welding points 9, which are thermally connected with the surface of the upper inner cover 3 to complete the upper top cover 2 and the upper inner cover 3. , to achieve the purpose of sealing and closing the box body 1, without destroying the appearance of the box body, and can instantly realize the effective fusion of the hot-melt adhesive layer 42 and the upper inner cover 3. In addition, an ultrasonic machine or a high-frequency machine heat can also be used. On the premise of not destroying the box body 1, the sealing and closing of the box body 1 can also be achieved.

Example 2

Please refer to FIGS. 6-7 , the present invention provides an environmentally friendly, efficient and anti-theft box body, including a box box body 1, a composite film 4 is provided between the upper top cover 2 and the upper inner cover 3 of the box box body 1, The composite film 4 is composed of an OPP-type hard substrate 41 and a hot-melt adhesive layer 42 bonded thereto. The OPP-type hard substrate 41 is bonded and fixed to the inner edge of the upper top cover 2, and the hot-melt adhesive layer 42 passes through Instantaneous thermal bonding, puncturing thermal bonding or perforating thermal bonding is performed on the surface of the upper inner cover 3 by means of point, segment, wave, or even integral thermal bonding at high temperature instantaneously, and the top of the upper top cover 2 is connected to the composite film. The position opposite to 4 is punched by a pneumatic point-breaking knife die with two point-breaking dashed incisions 5. The heating device used in the puncture heat method is the second sealing device 7, and the second sealing device 7 is installed with a multi-sided corner heat seal. Knife pneumatic heat sealing machine, the hot melt adhesive layer 42 passes through the composite film 4 and heats it through a polygonal corner heat sealing knife to form the interpenetration welding point 11 and the surface of the upper inner cover 3 to be bonded and fixed.

Specific steps are as follows:

The steps ①, ② and ③ recorded in Example 1 are consistent with the steps ①, ② and ③ of this example;

④High temperature heat sealing by puncture heat method

Using the puncture heat method, the composite film 4 and the surface of the upper inner cover 3 are thermally sealed at a high temperature for an instant. 2 and the upper inner cover 3, use the polygonal corner heat-sealing knife of the pneumatic heat sealer to punch through the upper top cover 2 to punch the intermittent polygonal holes to the composite film 4, and the hot-melt adhesive layer 42 of the composite film 4 is in the polygonal corner heat-sealing knife. It melts at a high temperature, and the formed interpenetrating welding point 11 is heat-bonded with the surface of the upper inner cover 3, so as to achieve the purpose of sealing and closing the box body 1. It should be noted that: the more edges of the polygonal heat sealing knife, the more The heat-sealing effect of the hot-melt adhesive layer 42 and the upper inner cover 3 is well ensured. Meanwhile, the heat-sealing method has little effect on the appearance of the box body 1, and the formed puncture holes can be basically ignored.

Example 3

Please refer to FIGS. 8-9 , the present invention provides an environmentally friendly, efficient and anti-theft box body, comprising a box box body 1, a composite film 4 is provided between the upper top cover 2 and the upper inner cover 3 of the box box body 1, The composite film 4 is composed of an OPP-type hard substrate 41 and a hot-melt adhesive layer 42 bonded thereto. The OPP-type hard substrate 41 is bonded and fixed to the inner edge of the upper top cover 2, and the hot-melt adhesive layer 42 passes through Instantaneous thermal bonding, puncturing thermal bonding or perforating thermal bonding is performed on the surface of the upper inner cover 3 by means of point, segment, wave, or even integral thermal bonding at high temperature instantaneously, and the top of the upper top cover 2 is connected to the composite film. The position directly opposite to 4 is punched by a pneumatic point-breaking knife die with two point-breaking dashed incisions 5. The heating device used in the perforation heat method is the third sealing device 8, and the third sealing device 8 is installed with a stamping heat sealing knife. The hot-melt adhesive layer 42 punches the composite film 4 and heats it to form the punched welding point 10 and the surface of the upper inner cover 3, and the upper top cover 2 is bonded to the surface of the upper inner cover 3. A decorative sticker 13 is affixed to the position directly opposite the punching welding point 10 .

Specifically, steps ①, ② and ③ recorded in Embodiment 1 are also consistent with steps ①, ② and ③ in this example;

④High temperature heat sealing by perforation heat method

Using the perforation heat method, the composite film 4 and the surface of the upper inner cover 3 are thermally sealed at high temperature for an instant. And the upper inner cover 3, the punching heat sealing knife of the pneumatic heat sealing machine is used to punch the discontinuous hole position through the upper top cover 2 and the composite film 4, so that the hot melt adhesive layer 42 of the composite film 4 passes through the heat generated by the punching heat sealing knife. The punching welding point 10 is formed, and it is thermally bonded to the surface of the upper inner cover 3, so as to achieve the purpose of sealing and closing the box body 1. It should be added that: in the pneumatic heat sealing machine, a stamping heat sealing knife is used to seal the upper cover After the surface of 2 is punched, a high-frequency machine or an ultrasonic machine can also be used to contact the hot-melt adhesive layer 42 through the hole and punch down, and also achieve the heat-sealing of the hot-melt adhesive layer 42 and the upper inner cover 3. In order to ensure the perforation For the beauty of sealing the upper top cover 2 and the upper inner cover 3 by the heat sealing method, a decorative sticker 13 can be attached to the punched hole of the upper top cover 2 to block the punched hole.

Example 4

Please refer to FIG. 10 , the present invention provides an environment-friendly, efficient and anti-theft box body, including a box body 1, the edge of the upper top cover 2 is provided with outwardly extending flaps, and the composite film 4 is bonded to the inner flaps The inner side of the box body 1 is instantly heat-sealed with the outside of the box body 1 at high temperature, and two dot-breaking dashed incisions 5 are processed on the folded sheet, and the composite film 4 is bonded to the inner side of the inner folded sheet. The hot-melt adhesive layer 42 is thermally sealed with the box body 1 at high temperature in an instant.

Example 5

Please refer to FIG. 11 , the box body 1 in the present invention can be in the form of a heaven and earth box, and the composite film 4 is attached to the inner side of the upper box body. When the box body 1 needs to be sealed and closed, the upper box body It is sleeved and closed with the lower box body, and the composite film 4 also adopts the instantaneous heating method, the puncture heating method or the perforation heating method, so that the hot melt adhesive layer 42 and the surface of the lower box body are spot-type, segment-type, wave-type, or even integral. A variety of methods can be used for instant high-temperature heat sealing to realize the sealing and closure of the box body 1 in the form of a heaven and earth box.

A sealing and closing method for the above-mentioned environmentally friendly, efficient and anti-theft box body, comprising the following steps:

S1. Material selection, use a soft composite film 4 that can be melted and bonded at high temperature. The composite film 4 is a composite film substrate formed by bonding hot melt adhesive and PET/OPP type film. Electromagnetic heating method is used when necessary. When the composite film 4 and the surface of the upper inner cover 3 are bonded and fixed, a layer of aluminum foil base material 12 needs to be added on the surface of the OPP type hard base material 41;

S2. Paste the selected composite film 4 on the inner edge of the upper top cover 2 of the box body 1 through the box body machine packaging equipment, about 1 cm from the edge;

S3. Use the blade to be embedded in the template to make a pneumatic point-breaking knife die, and use the pneumatic point-breaking knife mold to punch out two point-breaking dotted line incisions 5 on the outermost layer of the upper top cover 2 and along the parallel edges of the composite film 4;

S4. The composite film 4 can be heat-sealed at a high temperature in an instant by the instant heat method, the puncture heat method or the perforation method, so that the hot melt adhesive layer 42 and the surface of the upper inner cover 3 are instantly heat-sealed. After cooling and solidification, the upper top cover of the box body 1 is realized. 2. Sealing with the upper inner cover 3, in order to ensure the aesthetics of the sealing of the upper top cover 2 and the upper inner cover 3 by the perforation heat sealing method, a decorative sticker 13 can be attached to the punched hole of the upper top cover 2.

It should also be noted that: the above-mentioned various box body 1 heat sealing and sealing methods can be processed automatically by machine, and can also be sealed by processing mechanisms such as manual mechanical stamping, electric automatic stamping, semi-automatic automatic stamping and fully automatic automatic stamping. Closing, a variety of heat sealing and sealing methods of the box body 1 can be flexibly selected in actual production, reducing packaging costs.

The box body 1 can be opened quickly. As mentioned above, by tearing the upper top cover 2 at the two point-breaking dashed incisions 5, the upper top cover 2 can be disconnected without borrowing any foreign objects. Open the box body 1. The sealing and closed method not only saves the cost of sealing tape, but also eliminates the double-sided tape. The sealing effect of the composite film 4 is more robust and reliable, and the usage amount is small and the cost is low. It is efficient, environmentally friendly, and more economical. To meet the production requirements of various packaging methods, of course, the sealing and closing method of the box body 1 is not limited to the sealing of the paper packaging box.

In the present invention, unless otherwise expressly specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or a The indirect connection through an intermediate medium may be the internal communication of two elements or the interaction relationship between the two elements. Unless otherwise clearly defined, those of ordinary skill in the art can understand the above terms in the present invention according to specific circumstances. specific meaning in .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by 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).

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