CN108861072A - Integral type packing case and preparation method thereof - Google Patents
Integral type packing case and preparation method thereof Download PDFInfo
- Publication number
- CN108861072A CN108861072A CN201810651459.6A CN201810651459A CN108861072A CN 108861072 A CN108861072 A CN 108861072A CN 201810651459 A CN201810651459 A CN 201810651459A CN 108861072 A CN108861072 A CN 108861072A
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- inner casing
- shell
- mold
- integral type
- packing case
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- 238000012856 packing Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 239000004088 foaming agent Substances 0.000 claims description 47
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 239000004033 plastic Substances 0.000 claims description 27
- 229920003023 plastic Polymers 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 23
- 229920008262 Thermoplastic starch Polymers 0.000 claims description 16
- 239000004628 starch-based polymer Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004156 Azodicarbonamide Substances 0.000 claims description 3
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 3
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 7
- 238000006731 degradation reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 229920002472 Starch Polymers 0.000 abstract description 4
- 235000019698 starch Nutrition 0.000 abstract description 4
- 239000008107 starch Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000010902 straw Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000010816 packaging waste Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- -1 stalk Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
- B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section
-
- 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
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention discloses a kind of integral type packing cases and preparation method thereof, wherein, integral type packing case includes shell and inner casing, shell is equipped with the first outer surface and the first inner surface, inner casing is equipped with the second outer surface, and the first inner surface is connect with the second outer surface, and inner casing is for wrapping up article, the density of shell is greater than the density of inner casing, and shell and inner casing are an integral molding structure.Integral type packing case produced by the present invention, is produced by injection molding, and shell is closely connected as one with inner casing, is made for homogenous material, is facilitated recycling, can carry out secondary operation, is recycled.Raw material main component is starch or plant fiber, under field conditions (factors) can be with fast degradation, and degradation rate is high, environmentally friendly, not will cause environmental pollution.
Description
Technical field
The present invention relates to packing case fields, more particularly to integral type packing case and preparation method thereof.
Background technique
Present online shopping has become a kind of most common consumer behavior, and delivery industry also develops like a raging fire therewith.With
This simultaneously, express delivery packaging usage amount also present blowout growth.Express delivery packaging is much excessive packaging, causes a large amount of waterproof
Packaging bag, Packaging Box, adhesive tape and inside stuffing become packaging waste by discarded, very big pollution are caused to environment, to money
Cause very big waste in source.Some packaging wastes need the century-old time that could degrade in nature, not can be carried out effectively
Recycling, mainly using burn and landfill by the way of handled, the influence to environment is very big.Being badly in need of one kind now can
With reduce inside stuffing use, avoid excessive packaging, facilitate recycling utilize again, in nature can with natural degradation,
Degradation rate is high, environmentally friendly pollution-free, and production cost is low, simple production process packing case.
Summary of the invention
The purpose of the present invention is to provide a kind of integral type packing cases and preparation method thereof, can solve the above problem, full
The requirement that foot reduces inside stuffing, avoids excessive packaging, recycling is facilitated to utilize again.
According to an aspect of the invention, there is provided a kind of integral type packing case, which is characterized in that be equipped with the including shell
One outer surface and the first inner surface, inner casing are equipped with the second outer surface, and the first inner surface is connect with the second outer surface, and inner casing is for wrapping
Article is wrapped up in, the density of shell is greater than the density of inner casing, and shell and inner casing are an integral molding structure.
In some embodiments, the first outer surface of shell includes front, left side and right side, front, left side
Be respectively equipped with groove on right side, intermittent line is equipped in groove, institute is fluted to be connected, and all intermittent lines are connected.Shell
The first outer surface be equipped with groove, intermittent line is equipped in groove, groove is can use and intermittent line opens shell.
In some embodiments, it is 1.2-1.4g/cm that shell, which is density,3Shell, inner casing be density be 0.5-0.7g/
cm3Inner casing.The content of foaming agent is less in the injection raw material of shell, and the density of shell is greater than the density of inner casing.It had been molded
Cheng Zhong, foaming degree is low, and the shell inner air vent structure obtained after injection molding is less, and the density of shell is greater than the density of inner casing,
With better protective effect.The mechanical strength and structural stability of shell are more preferable, avoid making because of external force during transportation
Outer casing rupture or damage, can protect article and inner casing.The content of foaming agent is higher in the injection raw material of inner casing, is being molded
Cheng Zhong, foaming degree is high, keeps air hole structure in the inner casing obtained after injection molding more, and the density of inner casing is less than the density of shell, tool
There is better buffer function.Inner casing can preferably protect the article wrapped up, fix article, reduce in transportational process to object
The shock of product and the shaking of article are played the role of fixed and are buffered, substitute the inside stuffing of Traditional Packing mode.
In some embodiments, the shape of shell is one of sphere, cylindrical body, polyhedron, cube or prism.
Shell is processed to obtain by the second mold injection, and the shape of shell is the shape of the second mold, so the shape of shell is sphere, circle
Any one of cylinder, polyhedron, cube or prism shape,
In some embodiments, the printing of the first outer surface or stickup bar code, two dimensional code or trade mark.First outer surface
Upper stickup bar code or two dimensional code can understand the traffic condition of article at any time.Printing or affix labels on first outer surface,
It can play the role of publicity to promote.
In some embodiments, the production method of integral type packing case of the invention, wherein include the following steps：
Step a takes one first mold, places items in the first mold；
The first mold in step a is placed on injection molding machine, takes raw material and foaming agent, by raw material and foaming agent by step b
By weight 700:4~500:4 are added in the first barrel of injection molding machine, are stirred, heat to raw material and foaming agent, and will be former
Material and foaming agent are molded into the first mold, and item parcels are demoulded, inner casing is obtained；
Step c takes the second mold, and inner casing is put into the second mold；
The second mold in step c is placed on injection molding machine, takes raw material and foaming agent, by raw material and foaming agent by step d
By weight 700:1~500:1 is added in the second barrel of injection molding machine, is stirred, heats to raw material and foaming agent, and will
Raw material and foaming agent are molded into the second mold, and inner casing is wrapped up, and are demoulded, and shell is obtained；
In some embodiments, the injecting condition in step b and step d：Injection temperature is 180-200 DEG C, mold temperature
Degree is 60-70 DEG C, and injection pressure is 30~45bar, and dwell pressure is 25~35bar, injection speed 50-55g/s, when cooling
Between be 50-70s.Using low-pressure injection molding processing technology, under the conditions of this low pressure injection formaing, raw material can be made to be in molten
State makes foaming agent play one's part to the full, and reaches optimal foaming effect, and under corresponding injection pressure, shooting is rapidly completed, and protects
The die cavity that raw material is full of mold is demonstrate,proved, injection molding production is completed, makes the finished product of production that there is corresponding mechanical strength and complete structure,
Production cost is reduced simultaneously.
In some embodiments, raw material is one of thermoplastic starch plastic or plant fiber plastics.Foaming agent
It is azodicarbonamide, azodiisobutyronitrile, N, N- dinitrosopentamethlyene tetramine or 4, in 4- disulfonyl hydrazide diphenyl ether
One kind.Thermoplastic starch plastic has thermal plastic property, can obtain corresponding injecting products by the injection molding of injection molding machine.
Content of starch can be completely degraded in the natural environment 80% or more, and carbon dioxide and water are generated after degradation, will not be to ring
Cause any pollution in border.Plant fiber plastics are using natural plant materials such as stalk, bamboo fibre, fruit shells as raw material, by adding
What work obtained, have the characteristics that thermoplasticity, can be used for injection molding machine and carry out injection molding, the product of processing can be degradable, right
It is environmentally friendly.Azodicarbonamide, azodiisobutyronitrile, N, N- dinitrosopentamethlyene tetramine and 4,4- disulfonyl hydrazide hexichol
Ether, the above foaming agent can release the gases such as carbon dioxide and nitrogen by heat resolve, in the injection raw material of molten condition
Form pore, thus it is possible to vary the density of injecting products.
In some embodiments, injection molding machine is one of disc type injection molding machine or vertical multi-stage injection molding machine.Circle
Disc type injection molding machine can carry out injection molding simultaneously with multistation, can carry out the injection molding of more specifications, and production and processing is high-efficient,
It saves manually, reduces cost.Vertical multi-stage injection molding machine can carry out multistation processing, save space, and shock resistance is good.
The beneficial effect of this integral type packing case and preparation method thereof：The package of integral type packing case of the invention to article
Closer, inner casing replaces existing inside stuffing, protection article that can be comprehensive, while can transported with buffer articles
The physical shock being subject in journey, protection article will not be deformed, be crushed.Shell is an integral structure with high mechanical strength and knot
Structure stability, can protect inner casing and article, avoids outer casing rupture during transportation or damage and article is caused to damage.This
The integral type packing case of invention expands the circulation of article, and article is allow to get rid of the limitation of packing material.Method of the invention can
To determine the size of packing case according to the size of enveloped product, the waste of packing case not will cause, do not need specified too many
The packing case of specification.Raw material used in method of the invention is simple, it is possible to reduce article is excessively wrapped during online shopping express delivery
The phenomenon that dress, reduces packaging bag, the use of packing case, adhesive tape and inside stuffing, saves resource consumption, is the future of Internet of Things
A kind of faster implementation is provided.The present invention is raw material, nuisanceless, nothing in process of manufacture using starch or plant fiber
It pollutes, is nontoxic.Packing case is produced using method of the invention, to traditional using finished product sheet official form for filing a lawsuit as the entire packaging of Industry Foundation
Case production industrial chain has made subversive change, can greatly reduce production cost, mitigates environmental protection of the paper product production to environment
Pressure improves production efficiency.Compared with the corrugated case of equivalent specifications, dropped using the packing case cost that method of the invention produces
Low 60%.The integral type packing case made using the method for the present invention, is produced, shell is closely connect with inner casing by injection molding
It is integrated, can be damaged to avoid article.For homogenous material production, facilitate recycling, secondary operation can be carried out, is recycled.It is former
Expect that main component, under field conditions (factors) can be with fast degradation for starch or plant fiber, degradation rate is high, and it is environmentally friendly, it will not
Cause environmental pollution.
Detailed description of the invention
Fig. 1 is that the shell of the integral type packing case of one embodiment of the present invention is the sectional view of cuboid.
Fig. 2 is the structural schematic diagram of the shell of the integral type packing case of one embodiment of the present invention.
Fig. 3 is that the shell of the integral type packing case of one embodiment of the present invention is the sectional view of sphere.
Specific embodiment
The BS-SZEB2-24 type disc type injection molding machine that injection molding machine selects Wenzhou hundred to supply along Science and Technology Ltd. in the present invention
With the ZY-850-SS vertical multi-stage injection molding machine of Zhong Yang injection machine Manufacturing Co., Ltd of Zhongshan city supply, the first mold and the
The mold that two molds select Yang Fan precision die Co., Ltd of Shenzhen to supply, raw material selection are had by the magnificent environmentally friendly science and technology in Wuhan
801-1X days of HL-303 thermoplastic starch plastic and Jiangsu Jinhe High-technology Co., Ltd.'s supply that limit company supplies
Right straw plastic, foaming agent select the ADC-DN3 foaming agent of Guangzhou river salt chemical engineering Co., Ltd supply.
The invention will now be described in further detail with reference to the accompanying drawings.
Embodiment 1
With reference to FIG. 1 to FIG. 2, the production method of integral type packing case of the invention includes the following steps：
Step a takes one first mold, places items in the first mold；
The first mold in step a is placed on injection molding machine, takes HL-303 thermoplastic starch plastic and ADC- by step b
DN3 foaming agent, by HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent by weight 500:4 are added BS-SZEB2-24 type
In first barrels of disc type injection molding machine, HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent are stirred, heated,
And raw material and foaming agent are molded into the first mold, by item parcels, injection temperature is 200 DEG C, and mold temperature is 70 DEG C, note
Blow pressure is 45bar, and dwell pressure 35bar, injection speed 55g/s, cooling time, 70s, was demoulded, and obtains inner casing
2；
Step c takes the second mold, and inner casing 2 is put into the second mold；
The second mold in step c is placed on injection molding machine, takes HL-303 thermoplastic starch plastic and ADC- by step d
DN3 foaming agent, by HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent by weight 500:1 is added to BS-SZEB2-24
In second barrel of type disc type injection molding machine, HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent are stirred, added
Heat, and raw material and foaming agent are molded into the second mold, inner casing is wrapped up, injection temperature is 200 DEG C, mold temperature 70
DEG C, injection pressure 45bar, dwell pressure 35bar, injection speed 55g/s, cooling time, 70s, was demoulded, and was obtained
To shell 1；
Two dimensional code can be pasted on the first outer surface 11 of shell 1.
Embodiment 2
With reference to FIG. 1 to FIG. 2, the production method of integral type packing case of the invention includes the following steps：
Step a takes one first mold, places items in the first mold；
The first mold in step a is placed on injection molding machine, takes 801-1X natural straw plastics and ADC-DN3 by step b
Foaming agent, by 801-1X natural straw plastics and ADC-DN3 foaming agent by weight 700:4 are added the vertical multiplexing of ZY-850-SS
In first barrel of position injection molding machine, 801-1X natural straw plastics and ADC-DN3 foaming agent are stirred, are heated, and will be former
Material and foaming agent are molded into the first mold, and by item parcels, injection temperature is 180 DEG C, and mold temperature is 60 DEG C, injection pressure
For 30bar, dwell pressure 25bar, injection speed 50g/s, cooling time, 50s, was demoulded, and obtained inner casing 2；
Step c takes the second mold, and inner casing 2 is put into the second mold；
The second mold in step c is placed on injection molding machine, takes 801-1X natural straw plastics and ADC-DN3 by step d
Foaming agent, by 801-1X natural straw plastics and ADC-DN3 foaming agent by weight 700:1 to be added to ZY-850-SS vertical more
In second barrel of station injection molding machine, 801-1X natural straw plastics and ADC-DN3 foaming agent are stirred, are heated, and will
Raw material and foaming agent are molded into the second mold, and inner casing is wrapped up, and injection temperature is 180 DEG C, and mold temperature is 60 DEG C, injection molding pressure
Power is 30bar, and dwell pressure 25bar, injection speed 50g/s, cooling time, 50s, was demoulded, and obtains shell 1；
Trade mark can be printed on the first outer surface 11 of shell 1.
Embodiment 3
With reference to Fig. 3, the production method of integral type packing case of the invention includes the following steps：
Step a takes one first mold, places items in the first mold；
The first mold in step a is placed on injection molding machine, takes HL-303 thermoplastic starch plastic and ADC- by step b
DN3 foaming agent, by HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent by weight 500:4 addition ZY-850-SS are vertical
In first barrels of Multi-station injection molder, HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent are stirred, heated,
And raw material and foaming agent are molded into the first mold, by item parcels, injection temperature is 190 DEG C, and mold temperature is 65 DEG C, note
Blow pressure is 37.5bar, and dwell pressure 30bar, injection speed 52.5g/s, cooling time, 60s, was demoulded, and is obtained
Inner casing 2；
Step c takes the second mold, and inner casing 2 is put into the second mold；
The second mold in step c is placed on injection molding machine, takes HL-303 thermoplastic starch plastic and ADC- by step d
DN3 foaming agent, by HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent by weight 700:1, which is added to ZY-850-SS, stands
In second barrel of formula Multi-station injection molder, HL-303 thermoplastic starch plastic and ADC-DN3 foaming agent are stirred, added
Heat, and raw material and foaming agent are molded into the second mold, inner casing is wrapped up, injection temperature is 190 DEG C, mold temperature 65
DEG C, injection pressure 37.5bar, dwell pressure 30bar, injection speed 52.5g/s, cooling time, 60s, was taken off
Mould obtains shell 1；
Two dimensional code and trade mark can be printed on the first outer surface 11 of shell 1.
Embodiment 4
Integral type packing box structure made from above embodiments is identical.
Integral type packing case, including shell 1 and inner casing 2, shell 1 are equipped with the first outer surface 11 and the first inner surface, inner casing 2
Equipped with the second outer surface, the first inner surface is connect with the second outer surface, and inner casing 2 is greater than interior for wrapping up article, the density of shell 1
The density of shell 2, shell 1 and inner casing 2 are an integral molding structure.First outer surface 11 of shell 1 includes positive 12, left side 13
With right side 14, groove 4 is respectively equipped on front 12, left side 13 and right side 14, intermittent line 5 is equipped in groove 4, it is all recessed
Slot 4 is connected, and all intermittent lines 5 are connected.Shell is that density is 1.4g/cm3Shell, inner casing be density be 0.7g/cm3's
Inner casing.
In above embodiments, the shape of shell 1 is one of sphere, cylindrical body, polyhedron, cube or prism.
Specifically used mode of the invention：Integral type packing case of the invention, can be in article in production process
Surface sprays release agent, and the outer surface that can protect article will not be destroyed when removing packing case, facilitates article and inner casing point
From.The groove 4 and intermittent line 5 that can use the first outer surface 11, the shell 1 of integral type packing case of the invention is opened, can
It is opened in such a way that use is torn to inner casing 2, the article that inner casing 2 is wrapped up takes out.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. integral type packing case, which is characterized in that including shell (1) and inner casing (2), the shell (1) is equipped with the first outer surface
(11) and the first inner surface, the inner casing (2) are equipped with the second outer surface, and first inner surface is connect with the second outer surface, institute
It states inner casing (2) and is greater than the density of inner casing (2), the shell (1) and inner casing (2) for wrapping up article, the density of the shell (1)
It is an integral molding structure.
2. integral type packing case according to claim 1, which is characterized in that the first outer surface (11) of the shell (1)
Including positive (12), left side (13) and right side (14), on the front (12), left side (13) and right side (14) respectively
Equipped with groove (4), intermittent line (5) are equipped in the groove (4), all grooves (4) are connected, all intermittent lines
(5) it is connected.
3. the production method of integral type packing case according to claim 1, wherein the shell (1) is that density is 1.2-
1.4g/cm3Shell, the inner casing (2) be density be 0.5-0.7g/cm3Inner casing.
4. integral type packing case according to claim 1, which is characterized in that the shape of the shell (1) is sphere, cylinder
One of body, polyhedron, cube or prism.
5. integral type packing case according to claim 1, which is characterized in that the first outer surface (11) printing or viscous
Joint strip code, two dimensional code or trade mark.
6. the production method of integral type packing case according to claim 1, wherein include the following steps：
Step a takes one first mold, places items in the first mold；
The first mold in step a is placed on injection molding machine, takes raw material and foaming agent by step b, by raw material and foaming agent by weight
Measure ratio 700:4~500:4 are added in the first barrel of injection molding machines, are stirred, heat to raw material and foaming agent, and by raw material and
Foaming agent is molded into the first mold, and item parcels are demoulded, and obtains inner casing (2)；
Step c takes the second mold, and the inner casing (2) is put into the second mold；
The second mold in step c is placed on injection molding machine by step d, by the raw material and foaming agent by weight 700:1~
500:1 is added in the second barrel of injection molding machine, is stirred, heats to raw material and foaming agent, and raw material and foaming agent are infused
It moulds into the second mold, inner casing is wrapped up, demoulded, obtain shell (1).
7. the production method of integral type packing case according to claim 6, wherein protrusion is equipped in second mold,
The protrusion is equipped with the first groove of multiple interruption arrangements, and the protrusion is used to form corresponding groove (4), and described first is recessed
Slot is used to form corresponding intermittent line (5).
8. the production method of integral type packing case according to claim 6, wherein the injection molding in the step b and step d
Processing conditions：Injection temperature is 180-200 DEG C, and mold temperature is 60-70 DEG C, and injection pressure is 30~45bar, and dwell pressure is
25~35bar, injection speed 50-55g/s, cooling time 50-70s.
9. the production method of integral type packing case according to claim 6, wherein the raw material is thermoplastic starch plastic
Or one of plant fiber plastics, the foaming agent are azodicarbonamide, azodiisobutyronitrile, N, N- dinitroso five
Methine tetramine or 4, one of 4- disulfonyl hydrazide diphenyl ether.
10. the production method of integral type packing case according to claim 6, wherein the injection molding machine is disc type injection molding
One of machine or vertical multi-stage injection molding machine.
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