CN103027548A - Paper container and manufacturing method for same - Google Patents
Paper container and manufacturing method for same Download PDFInfo
- Publication number
- CN103027548A CN103027548A CN2011103020022A CN201110302002A CN103027548A CN 103027548 A CN103027548 A CN 103027548A CN 2011103020022 A CN2011103020022 A CN 2011103020022A CN 201110302002 A CN201110302002 A CN 201110302002A CN 103027548 A CN103027548 A CN 103027548A
- Authority
- CN
- China
- Prior art keywords
- paper
- cup section
- section
- foot
- wall portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Package Specialized In Special Use (AREA)
Abstract
The invention provides a paper container and a manufacturing method for the same. The paper container is suitable to be heated by an electronic microwave oven and the like for cooking or suitable for the injection of hot water, is easily operated at high temperature, and can be manufactured to form a simple structure with low cost. According to the paper container, resin foot parts (15) are integrally and fixedly arranged at the outer bottom of a close-ended tubular cup part (2) which is formed by drawing a paper blank in an injection molding way, and are raised from the outer surface of the outer bottom. The paper container can be held by placing fingers at an upper end and the foot parts (15) respectively, so that the influence of heat of a material in the paper container is reduced.
Description
Technical field
The present invention relates to a kind of paper-made vessel and manufacture method thereof, particularly be suitable for heating or injecting by microwave oven, baking box micro-wave oven etc. in use paper-made vessel and the manufacture method thereof of the situation of hot water.
Background technology
As can be by the paper-made vessel of the heating such as microwave oven, for example known paper disc that patent documentation 1 is arranged.This paper disc is assembled into plate-like with carton according to broken line, and is laminated with the thermoplastic plastic sheet at the inner surface of this carton.And the flange portion in the upper end of this paper disc is formed with the section that is involved in that the thermoplastic plastic sheet who is layered on the inner surface is wound up into the back side always, and this is involved in the exposed portions serve that section covers the paper end face.
In addition, constituting of the paper container of patent documentation 2: by the cardboard that is laminated with the thermoplastic plastic sheet is carried out stretch process, formation has the paper disc main body of flange portion, this paper disc main body is configured on the injecting molding die, to cover the one-body molded thermoplastic resin of mode of flange portion.
Have again, patent documentation 3 described containers are in the mode that covers this main part sidewall cylindrical body made of paper to be installed on the trapezoidal plastic containers main body of the inverted cone that is made of main part sidewall and base plate, and the main part sidewall is made dual structure, become thus heat insulation structural.
In addition, patent documentation 4 also discloses the heat insulation clad vessel of the dual structure that the plastic cup of the dixie cup that makes external packing body and inner packing body becomes one.
Patent documentation 4 JP 2007-168819 communiques
In order to be carried out cooking by microwave oven etc. or to inject hot water, this container must operate under the condition of high temperature.This situation is if make dual structure with container in advance, then when controlling container as patent documentation 3 or patent documentation 4 described containers, heat is difficult for passing on hand, so processing ease, but because structure of container is complicated, have the difficulty of making and the high tendency of price.
Summary of the invention
The present invention In view of the foregoing proposes, its purpose is to provide a kind of paper-made vessel and manufacture method thereof, this paper-made vessel is suitable for by the cooking such as microwave oven or injects the situation that hot water uses, and is easy to carry out the operation under the high temperature, and can makes at an easy rate with simple structure.
Paper-made vessel of the present invention is characterised in that: the outer bottom of the cup section that bottom tube-like is arranged that forms in that the blank that is made of paper wood is carried out stretch process, one are fixed with from the outstanding resinous foot of the outer surface of described outer bottom.
In this paper-made vessel, content is filled into from the upper end position a little down, is formed with headroom in the upper end, in contrast to this, surrounding wall portion and bottom are content contact inner surface, therefore, heat is delivered to the outer peripheral face of container, so the temperature of outer peripheral face is high.Paper-made vessel of the present invention is because the outer bottom that is fixed on cup section made of paper is given prominence to by resinous foot, and therefore, the temperature of the front end of this foot is lower than other parts of bottom.In addition, the upper end of container can directly not contact with content owing to the existence of headroom, so temperature is low.Thus, can control container by pointing in the upper end that is placed on respectively this container and the foot, with the impact of the heat that reduces content.
In addition, because foot, the bottom of cup section is placed to the state that is suspended on desk face etc., therefore is difficult for heat radiation, and heat insulating ability is excellent, when carrying out cooking with microwave oven, because microwave also around the following irradiation of bottom, therefore can reduce the heating inequality.
At this moment, described foot can form along the ring-type of the circumference of described cup section, perhaps also can be by uniformly-spaced being set at least more than two on the circumference of described cup section.
By ring-type or plural foot are set, in the time of on being placed on desk etc., be stable.
In addition, paper-made vessel of the present invention also can be in described cup section one be fixed with from the continuous resinous flange part in upper end of described cup section.
In the upper end that finger is placed on container and foot and when controlling, because finger also contacts with resinous flange part in the upper end of container, so can further reduce the impact of the heat of content.
Have, because resinous flange part is fixed on the upper end of glass section, therefore, the rigidity of container improves, and operability improves again.In addition, if the stretch process by paper wood forms flange, then process relatively difficulty owing to producing fold, but because the flange part of fixing resin system, therefore when the moulding of the cup section of paper wood, need not to form flange portion, handling ease, and can access smooth flange part, the installation of lid material is also easy.
Paper-made vessel of the present invention is coated with resin bed on the surface of described cup section, and described foot can be made of the resin with the same kind of resin bed that covers described cup section.
Similarly, described flange part also can be made of the resin with the same kind of resin bed that covers described cup section.
Owing to be each other set of same material, therefore, can more firmly and effectively form connecting state.
In paper-made vessel of the present invention, described flange part comprises along the cylindrical portion of the surrounding wall portion of described cup section and the ring-shaped flat board that stretches out from this cylindrical portion level, described cylindrical portion is overlapping and fixing with the part of the state of the upper surface of the surrounding wall portion that covers described cup section and described surrounding wall portion, on the surrounding wall portion of described cup section, be formed with the recess that extends to depth direction on its all-round at least a portion, the resin of described flange part enters in the described recess and gets final product.
The part that the upper end of the surrounding wall portion of cup section and the cylindrical portion of flange part are overlapping so long as under the state of the upper surface that covers surrounding wall portion, make surrounding wall portion the surfaces externally and internally side at least one side side and cylindrical portion is overlapping gets final product, both can be the inner surface side configuration cylindrical portion in surrounding wall portion, also can be the outer surface side configuration cylindrical portion in surrounding wall portion.Perhaps, can also be so that the mode that surrounding wall portion buries in cylindrical portion forms cylindrical portion on the inside and outside two sides of surrounding wall portion.In addition, in situation about forming in the overlapping mode of the cylindrical portion of at least one side side of the inner and outer circumferential surfaces side of the surrounding wall portion of cup section and flange part, because flange part is fixed into the state of the upper surface that covers surrounding wall portion, therefore, when the injection moulding of flange part, the part of resin also enters the opposing face side from the upper surface of surrounding wall portion along recess, because this resin, the inside and outside two sides of surrounding wall portion all disposes resin, can firmly fix glass section and flange part.
In addition, the manufacture method of paper-made vessel of the present invention is characterised in that, comprising: cup section forms operation, and the flange that is made of paper wood is carried out stretch process and is formed with the cup section of bottom tube-like; And injection moulding operation, described cup section is configured in the mould and in the outer bottom injection moulding of described cup section from the outstanding foot of the outer surface of described outer bottom, described injection moulding operation is so that under the state that the part of the outer bottom of described cup section is exposed in the die cavity of described mould, this exposed portions serve around by the described cup of described mould holding section, and with resin injection in described die cavity, so that described foot is fixed in the described cup section.
Owing to be by the injection molding one-body molded simple structure that foot is set, therefore compare with the container of the dual structure of prior art etc., can realize cost degradation.
According to this manufacture method, cup section and flange part under the capped state in the upper surface of surrounding wall portion with cylindrical portion overlap surrounding wall portion the upper end mode and form, and make the thin thickness of flange part, can realize miniaturization, light-weighted paper-made vessel thereby can make.In the case, by the blank forming cup section of paper wood the time owing to do not need to arrange the flange position, therefore, when carrying out stretch process, blank is slided in mould in moulding, and can reduce the generation of substandard products, improve fabrication yield.
According to the present invention, because resinous foot is fixed in the cup made of paper section, therefore when being heated by microwave oven etc., when perhaps injecting hot water etc., even if cup section becomes the condition of high temperature, also can be to clamp the upper end of the cup section lower than other portion temperature and the mode between the foot grips with finger, the heat of cup section is difficult for passing on hand, so can operate at an easy rate.In addition, owing to be that foot is fixed on the structure in the cup section of paper wood, simple in structure, so can realize cost degradation.
Description of drawings
Fig. 1 shows the first embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
Fig. 2 is to the amplification view of the part of flange part from the bottom of the paper-made vessel of Fig. 1.
Fig. 3 is the top view that is presented at the blank before the cup section of paper-made vessel of moulding pie graph 1.
Fig. 4 is that half of cup section that the blank to Fig. 3 carries out after the stretch process is the front view of section.
Fig. 5 shows the cutaway view that the cup section of Fig. 4 is configured in the main position of the state in the injecting molding die.
Fig. 6 is that the X-X of Fig. 2 is to amplification view.
Fig. 7 shows the second embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
Fig. 8 shows the 3rd embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
Fig. 9 shows the 4th embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
Figure 10 shows the 5th embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
Figure 11 shows the 6th embodiment of paper-made vessel of the present invention, (a) is that half is the front view of section, (b) is upward view.
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 to Fig. 6 shows the first embodiment of the present invention.
This paper-made vessel 1 has: the cup section 2 that bottom tube-like is arranged; Be fixed on the flange part 5 on the upper end 3a of surrounding wall portion 3 of this glass section 2; And one is fixed on the foot 15 of the outer bottom of glass section 2.
Wherein, cup section 2 forms by the blank 6 that is made of paper wood shown in Figure 3 is carried out stretch process.This blank 6 forms discoideus, is formed with many line (marking groove) 7,8 in the zone of the surrounding wall portion 3 that forms cup section 2.These line 7,8 form radially around described central part on the whole except the central part of blank 6, and form the long and short two kind, and dash line 7 and dash line 8 are interconnected on circumferentially.For example, be formed with 200 line 7,8 by 1.8 ° intervals, long respectively forms 100 with short.In addition, line 7,8 is not set in the scope of the neighboring of distance blank 6 predetermined distance (for example, about 1mm), disposes par 9 at this position.The paper wood that consists of blank 6 for example its thickness is about 0.2～0.5mm, and is formed with the resin bed (omitting diagram) that the synthetic resin by polypropylene (PP) etc. consists of in the positive and negative side of this paper wood.In addition, also can the lamination aluminium foil or by the film that the low material of oxygen penetrance of EVOH (ethylene-vinyl alcohol copolymer) resin etc. consists of, by with laminations such as these aluminium foils or EVOH resins, have the oxidation that prevents content and the effect that prolongs the pot-life.
And, by the mould (omitting diagram) with heated condition this circular blank 6 is carried out stretch process, form the cup section 2 that bottom tube-like is arranged shown in Figure 4.This glass section 2 is with the bottom 11 of circle and the integrally formed shape of surrounding wall portion 3 of surrounding this bottom periphery.At this moment, owing to by stretch process described line 7,8 width and interval are upwards narrowed down in week, therefore on surrounding wall portion 3, as amplifying local describing among Fig. 6, line 7,8 becomes recess 16A, and the part between the line becomes protuberance 16B, and on its border, the part of surrounding wall portion 3 overlaps, and forms a plurality of crease section 17.In addition, surrounding wall portion 3 forms more the taper of hole enlargement more gradually to its upper end 3a.
In this glass section 2, as mentioned above, flange part 5 one that formed by resin are fixed on the upper end 3a of surrounding wall portion 3.This flange part 5 is fixed in glass section 2 by injection moulding, the resin that consists of this flange part 5 can be the polypropylene with the same material of the resin of the resin bed that consists of paper wood, but in the situation of accommodating the content that is carried out cooking by baking box micro-wave oven etc., PBT (polybutyleneterephthalate) resin, PET (polyethylene terephthalate) resin etc. that preferably uses excellent heat resistance is for well.The thickness of resin for example is about 0.5～1mm.
This flange part 5 has: as with the fixing part of cup section 2 and be the cylindrical portion 12 along the shape of surrounding wall portion 3; And the ring-shaped flat board 13 that stretches out from the upper end level of this cylindrical portion 12.Cylindrical portion 12 forms longer than the par 9 of cup section 2, and this length is the length (for example, about 10mm) of difference of height of the top edge of the upper end 3a that produces of the distortion when being enough to bury because of stretch process.And this flange part 5 covers under the state of upper surface 3b of surrounding wall portion 3 of cup sections 2 to fix with the overlapping mode of the outer peripheral face of the upper end 3a of surrounding wall portion 3 and forms integrated in Fig. 1 and Fig. 2 in cylindrical portion 12.In the case, cylindrical portion 12 is except for being fixed on the shape on the outer peripheral face of upper end 3a, also can be the shape that is fixed on the inner peripheral surface of upper end 3a, perhaps, thereby can also be to clamp the state fixing shape of upper end 3a to bury upper end 3a from interior periphery both sides.
On the other hand, the bottom 11 of cup section 2 is on its periphery, with below become projection the mode ring-type be formed with outstanding rib section 21, and the base plate 22 of the shape of the outstanding end that upwards suspends in the lower surface of locating in the inner part than this rib section 21 to be formed with than rib section 21.And the lower surface in rib section 21 is provided with foot 15 with outstanding state downwards.By uniformly-spaced being provided with three, any one is all (for example, 2mm) outstanding and form, and form respectively circular-arc along the neighboring of rib section 21 with a little height on circumference in this foot 15.These foots 15 also with flange part 5 similarly, except with the polypropylene of the congener material of resin-phase of the resin bed that forms paper wood, in the situation of accommodating the content that is carried out cooking by baking box micro-wave oven etc., use PBT (polybutyleneterephthalate) resin, PET (polyethylene terephthalate) resin of excellent heat resistance etc., and be fixed in glass section 2 by injection moulding.
Next, the manufacture method of the paper-made vessel 1 of formation like this described.
This manufacture method is divided into: the cup section that is formed cup section 2 by the blank 6 of paper wood forms operation; And by form the injection moulding operation of flange part 5 and foot 15 in this glass section 2 based on injection molding insert-molding.
That is, if will be formed to flange part by the moulding of paper wood since when stretch process the periphery tube reducing, paper wood is upwards overlapped in week, particularly on flange part, because this overlapping portion and produce very large concavo-convex at thickness direction.This concavo-convex more periphery near flange part is just larger.In addition, the stretching, extension of the material when resulting from stretch process is inhomogeneous etc., the periphery of flange part do not form equably and become wavy, easily inhomogeneous at the width of circumferential upper flange part.
Therefore, patent documentation 1 is described as the aforementioned, the thermoplastic plastic sheet is involved in flange part, or as described in the patent documentation 2, by with thermoplastic injection moulding etc., covered by resin in the situation of flange part, whole in order to cover flange by resin, need the width of thickening resin and increasing flange to form.Therefore, the heavy problem of weight change that use amount increases, the whole change of flange is large and whole that has the resin of covering usefulness.
In addition, if deepen the stretching of paper wood, can produce also that paper wood is elongated, the bad problem of moulding of the bottom fracture of surrounding wall portion etc.
The paper-made vessel of present embodiment is when the stretch process of paper wood, forms the cup section 2 that does not have flange part, can successfully process thus.
Next, in the injection moulding operation, use injecting molding die shown in Figure 5.This injecting molding die 25 is made of one group of template 26,27, after these templates 26,27 of assembling, forms foot's usefulness die cavity 29 that the flange of the ring-type that the flange part moulding uses is used with die cavity 28 and foot's moulding in the part of being clamped by two templates 26,27.In illustrated example, cup section 2 is the state configuration of turning around.
In addition, be formed with the upper end 3a that makes surrounding wall portion 3 between with die cavity 29 with die cavity 28 and foot at flange to face contact section 30A, the 30B of flange with the inner and outer circumferential surfaces of clamping surrounding wall portion 3 under the inner outstanding states of die cavity 28, and also be formed with so that the 31A of face contact section, the 31B of the part of the outer surface of rib section 21 surfaces externally and internally of clamping base plate 22 under the state that foot exposes with die cavity 29 inside with the inner rim section of die cavity 29 in foot.The 31A of this face contact section, 31B are set as and separate when matched moulds less than the interval of the thickness of the surrounding wall portion 3 of cup section 2 and relative size, so that surrounding wall portion 3 clampings are become pressed state.And then, more locating the radial direction inboard than the 31A of this face contact section, 31B, be formed with the release blank part 32 that separates a little gap and dispose the base plate 22 of glass section 2.
In addition, for example from hot cross gate 33 by cast gate 34 and injecting resin to each die cavity 28,29.
And, by cup section 2 being configured between two templates 26,27 and carrying out matched moulds, the inner and outer circumferential surfaces of surrounding wall portion 3 be pressed contact site 30A, 30B clamping, and its upper end 3a exposes with die cavity 28 inside at flange, in addition, between the 31A of face contact section, the 31B of the 30A of this face contact section, 30B and clamping base plate 22, the part of the outer peripheral face of rib section 21 becomes the state that exposes with die cavity 29 inside in foot.In Fig. 5, the outer peripheral face from the upper surface 3b of the surrounding wall portion 3 of cup section 2 to upper end 3a is adjacent to flange with die cavity 28.Under this state, by with in each die cavity 28 of resin injection of melting, 29 and cylindrical portion 12 is fixed on the upper end 3a of surrounding wall portion 3 of glass section 2, so that flange part 5 becoming one, and foot's 15 one are fixed on the outer peripheral face of rib section 21 of glass section 2.At this moment, the resin bed on the surface of cup section 2 and injected resin are deposited, and cup section 2 and flange part 5 and foot 15 firmly fix.In addition, the upper surface 3b of surrounding wall portion 3 becomes the state that is covered by the cylindrical portion 12 of flange part 5.
In the case, as mentioned above, although be formed with recess 16A and protuberance 16B on the two sides of surrounding wall portion 3, but because the 31A of face contact section, 31B are with the interval clamping surrounding wall portion 3 less than the thickness of surrounding wall portion 3, therefore the concavo-convex of surrounding wall portion 3 damaged by pressure, prevents that effectively injected resin from crossing the 31A of face contact section, 31B and overflowing downwards.About this surrounding wall portion 3, after injection moulding, will be compared when measuring by the thickness of the part of the 31A of face contact section, 31B clamping and the thickness when zero load, be 333 μ m～465 μ m (average 374 μ m) when zero load, but after injection moulding, owing to face contact section 20,21 becomes 320 μ m～353 μ m (average 337 μ m).Mensuration is the dial thickness gauge of using Co., Ltd. must happy (TECLOCK) to produce, and each container is measured four places by 90 ° of intervals, and measures a plurality of containers.
Therefore the paper-made vessel 1 that so obtains can guarantee rigidity owing to have resinous flange part 5, can prevent the distortion that causes owing to the heating of distilling sterilization or microwave oven etc.
In addition, need not to be pre-formed the flange position in cup section 2, can improve the flatness of ring-shaped flat board 13, and can reduce thickness and the width of this flange part 5 by formed the distortion that flange part 5 prevents flange part 5 by resin monomer, make integral miniaturization.Therefore, during such as display in shop etc., can realize saving the space, and can be formed for compactly covering the lid of flange part 5.
And, owing to the cylindrical portion 12 of resinous flange part 5 is to fix with the overlapping mode of the part of surrounding wall portion 3 under the state of the upper surface 3b of the surrounding wall portion 3 that covers this glass section 2, therefore, even if it is uneven to produce a little height at the upper surface 3b of the surrounding wall portion 3 of cup section 2, the lap of cylindrical portion 12 that also can be by flange part 5 forms the state of practical binding, prevents glass section 2 and peeling off of flange part 5 etc.
In addition, because flange part 5 is to be made of resin, and does not comprise the moulding section of paper wood on its ring-shaped flat board 13, therefore can reduce the thickness of ring-shaped flat board, and can be formed flatly the surface of ring-shaped flat board, the fine finishining that its edge also can not be well on undulation.Therefore, also can reduce the width of ring-shaped flat board 13.
In addition, the lap of the upper end 3a of the surrounding wall portion 3 of cup section 2 and the cylindrical portion 12 of flange part 5 is so long as under the state of the upper surface 3b that covers surrounding wall portion 3, cylindrical portion 12 stresses folded getting final product with at least one side of the inner and outer circumferential surfaces of surrounding wall portion 3, can in the inner face side configuration cylindrical portion of surrounding wall portion 3, also can dispose cylindrical portion in the outer surface side of surrounding wall portion 3.Perhaps can also form cylindrical portion in the inside and outside two sides of surrounding wall portion 3 side, so that surrounding wall portion 3 buries in cylindrical portion.
In the case, if the end face of paper wood exposes, may produce the paper powder at this end face, but because the upper surface 3b of the surrounding wall portion 3 in the cup section 2 is in the state that is covered by the cylindrical portion 12 of resinous flange part 5, therefore can not produce the paper powder, relatively health.
In addition, as shown in Figure 6, although be the mould-matching structure that forms cylindrical portion 12 in the outer peripheral face side of surrounding wall portion 3, but as mentioned above, owing on the two sides of surrounding wall portion 3, be formed with recess 16A and protuberance 16B along depth direction, therefore, even if surrounding wall portion 3 is remained on the state that inner circumferential surface contacts template 27, also can between the inner peripheral surface of template 27 and surrounding wall portion 3, form the gap by recess 16A.Therefore, if in resin injection die cavity 28, part resin also can enter from the upper surface 3b of surrounding wall portion 3 the recess 16A of inner peripheral surface side of surrounding wall portion 3, the result is, shown in the P among Fig. 6, also can be partly or thinly at the all-round resin bed that forms in the inner peripheral surface side of surrounding wall portion 3, and become one with the resin of outer circumferential side, to form cylindrical portion 12.
In addition, the digit microscope VHX-200/100F that produces with Co., Ltd.'s Keyemce (KEYENCE) takes the cross-sectional picture of surrounding wall portion 3, and with the depth D of the interior functional examination recess 16A of this analyzer, the result is 50 μ m～250 μ m.
In addition, on the bottom 11 of cup section 2, because in the outstanding foot 15 that is fixed with of Qi Sanchu, therefore, make in the situation of content heating by carried out cooking or injection hot water etc. by microwave oven, control paper-made vessel 1 as long as finger is placed on this foot 15 and the flange part 5, heat just is difficult for passing on hand, can carry out at an easy rate this operation.
In addition, the rib section 21 of cup section 2 that is fixed with this foot 15 is different from aforesaid surrounding wall portion 3, does not almost have concavo-convex or concavo-convex minimumly, and therefore, foot 15 is fixed on roughly the outer surface of level and smooth rib section 21.
Fig. 7 shows the second embodiment of paper-made vessel of the present invention.In the paper-made vessel of the first embodiment, by uniformly-spaced being provided with three foots 15, but in the paper-made vessel 41 of this second embodiment, foot 42 forms along the ring-type of the circumference of cup section 2 along circumference, and is arranged on bottom surface all-round of glass section 2.Other structures are identical with the paper-made vessel of the first embodiment, adopt same Reference numeral for common part, and description thereof is omitted.
Since foot 42 be arranged on all-round on, therefore can not select to control the position, further improve operability.
Fig. 8 shows the 3rd embodiment of paper-made vessel of the present invention.The paper-made vessel 45 of this embodiment is to form square bowl-shape cup section 46 by drawing and forming, and by injection moulding, one is fixed with flange part 48 on the upper end 47a of the surrounding wall portion 47 of this glass section 46, and the outer surface in the rib section 50 of the periphery that is formed at base plate 49, the mode one with the configuration of L font on Qi Sijiao is fixed with four foots 51.Owing in moulding paper cup section, do not form flange part, therefore, the burden when the stretch process of cup section is less, except as the circle of the first embodiment, the various shapes such as square, bowl-type such as present embodiment can also be easy to form, widely purposes can be applicable to.
In the case, flange part 48 is also included within the state of upper surface 47b of the cup section 47 that covers cup section 46 with fixing square cylindrical portion 52 and the ring-shaped flat board 53 that stretches out from the upper end level of this cylindrical portion 52 with the overlapping mode of upper end 47a.
Even if so square bowl-shape paper-made vessel 45 owing to do not form flange part when the stretch process of the cup section 46 that is made of paper wood, therefore, can be easy to carry out stretch process from blank, thereby reduce the generation of substandard products.And, can pass through resinous flange part 48, with smooth and minimal thickness, and form square ring-shaped flat board 53 in the mode of little width, and can realize miniaturization, lightweight.
In addition, be fixed with foot 51 because four places of the bottom of cup section 46 are outstanding, therefore, control paper-made vessel 45 by finger being placed on this foot 51 and the flange part 48, even if in the hotter situation of content, heat can not be easy to pass on hand yet, can be easy to carry out this operation.
The situation of the cup section 46 that this is square is: in its blank material, only be formed with line in the part corresponding with four square bights, and when stretch process, can produce in four square bights and result from recess 16A and the protuberance 16B of line.Therefore, when the injection moulding of flange part 48, remain in the one side with surrounding wall portion 47 in the situation of the state that contacts with template, resin mainly enters between template and the surrounding wall portion 47 in four bights, and the moulding of inside and outside integrative ground.
Fig. 9 shows the 4th embodiment of paper-made vessel of the present invention, the paper-made vessel 55 of the 4th embodiment is different from the paper-made vessel of the 3rd embodiment, outstanding foot 56 forms along the rectangle ring-type of the circumference of cup section 46 from its bottom surface, and is arranged on bottom surface all-round of glass section 46.Other structures are identical with the paper-made vessel of the 3rd embodiment, in the all-round foot 56 that is provided with, therefore, can not select to control the position, further improve operability.
Figure 10 shows the 5th embodiment of paper-made vessel of the present invention.The paper-made vessel 61 of this embodiment is the superficial cup section 62 of the moulding substantially elliptical by drawing and forming, and by injection moulding flange part 65 one is fixed on the upper end 63a of surrounding wall portion 63 of this glass section 62.In the case, under the state of the upper surface 63b that also includes in the surrounding wall portion 63 that covers cup section 62 of flange part 65 with fixing cylindrical portion 66 and the ring-shaped flat board 67 that stretches out from the upper end level of this cylindrical portion 55 with the overlapping mode of upper end 63a.In addition, on oval-shaped base plate 68, outstanding and integrally formed downwards along the foot 69 of the ring-type of its periphery.
The situation of this paper-made vessel 61 also with the respective embodiments described above similarly, when being carried out stretch process, the cup section 62 that is made of paper wood do not form flange part, therefore can be easy to carry out the stretch process from blank, and can reduce the generation of substandard products, can be by resinous flange part 65 with smooth and minimal thickness, and the mode with little width forms ring-shaped flat board 67, and realizes miniaturization, lightweight.
In addition, the bottom that protrudes from glass section 62 owing to foot 69 is fixed, therefore, control paper-made vessel 61 by finger being placed on this foot 69 and the flange part 65, even if in the situation of content heat, heat can not be easy to pass on hand yet, can be easy to carry out this operation.
This oval-shaped cup section 62 although have density contrast in the large part of the little part of radius of curvature and radius of curvature, is formed with recess 16A and protuberance 16B, and is formed with the resin of flange part 65 inside and outside surrounding wall portion 63 also on its surrounding wall portion 63.
Figure 11 shows the 6th embodiment of paper-made vessel of the present invention.The paper-made vessel 71 of this embodiment is identical with the situation of the embodiment of Figure 10, and by injection moulding, flange part 75 one are fixed on the upper end 73a of surrounding wall portion 73 of superficial cup section 72 of substantially elliptical.In the case, flange part 75 also comprises: under the state of the upper surface 73b of the surrounding wall portion 73 that covers cup section 72 with the cylindrical portion 76 fixing with the overlapping mode of upper end 73a; And the ring-shaped flat board 77 that stretches out from the upper end level of this cylindrical portion 76, in addition, on oval-shaped base plate 78, two places than the planar section of its periphery position a little in the inner part are formed with outstanding foot 79 downwards.
So, because the position of foot 79 can freely change, therefore, even if in the bottom of cup section 72 difference of height (rib section) is arranged, also can avoid this part in base plate 78, the free degree of cup-shaped enlarges.
In addition, the present invention is not subject to above-mentioned embodiment, can carry out various changes in the scope that does not break away from aim of the present invention.
For example, cup section also can be the shape beyond the respective embodiments described above, can be arranged to the various shapes of shallow collar plate shape etc.In addition, thereby in the cup section that each embodiment all is fixed on its one flange part and these two part injection mouldings of foot to be made of paper wood, but in the present invention, as long as formed by resin to major general foot, be also included within the cup section of paper wood and be formed with flange part, perhaps in the situation that the upper end of cup section is fixed with resin foot as the paper-made vessel of curled portion etc.In this case, as mentioned above, the upper end of container does not directly contact content owing to be formed with headroom yet, and therefore, temperature is lower, and by finger being placed in its upper end and the resinous foot, heat is difficult for passing on hand.
In addition, can foot be set at least two places, also can be in the place more than three foot to be set.
Have again, also can form groove etc. at the ground plane of foot, thereby make it have skidproof effect.
And then in the embodiment of manufacture method, the structure of the cross gate during injection moulding, cast gate etc. also can be used known injection molding technology.
In addition, formed by resin in the situation of flange part, for ultrasonic wave coating of covering effectively material etc., also can be along the raised line crimping (bead) that the cross section is triangle circumferentially is set on the ring-shaped flat board of flange part.In the case, because very unfertile land forms ring-shaped flat board main body, even if therefore be provided with crimping, also can reduce whole thickness.
Symbol description
The 1-paper-made vessel
2-cup section
The 3-surrounding wall portion
The 3a-upper end
The 3b-upper surface
The 5-flange part
The 6-blank
The 11-bottom
The 12-cylindrical portion
13-ring-shaped flat board
15-foot
The 16A-recess
The 16B-protuberance
17-crease section
The 22-base plate
The 25-mould
26,27-template
28-flange die cavity
29-foot die cavity
30A, 30B-face contact section
31A, 31B-face contact section
41,45,55,61,71-paper-made vessel
42,51,56,69,79-foot
46,62,72-cup section
47,63,73-surrounding wall portion
47a, 63a, 73a-upper end
47b, 63b, 73b-upper surface
48,65,75-flange part
49,68,78-base plate
52,66,76-cylindrical portion
53,67,77-ring-shaped flat board
Claims (7)
1. paper-made vessel is characterized in that: on the outer bottom of the cup section that bottom tube-like is arranged that forms in that the blank that is made of paper wood is carried out stretch process, one is fixed with from the outstanding resinous foot of the outer surface of described outer bottom.
2. paper-made vessel as claimed in claim 1 is characterized in that: described foot on the circumference of described cup section by uniformly-spaced forming at least more than two.
3. paper-made vessel as claimed in claim 1 is characterized in that: described foot forms along the ring-type of the circumference of described cup section.
4. such as each the described paper-made vessel in the claims 1 to 3, it is characterized in that: be fixed with from the continuous resinous flange part in upper end of described cup section in described cup section one.
5. such as each the described paper-made vessel in the claims 1 to 3, it is characterized in that: the surface coverage in described cup section has resin bed, and described foot is made of the resin with the resin bed identical type that covers described cup section.
6. paper-made vessel as claimed in claim 4 is characterized in that: the surface coverage in described cup section has resin bed, and described foot is made of the resin with the resin bed identical type that covers described cup section.
7. the manufacture method of a paper-made vessel is characterized in that, comprising: cup section forms operation, and the blank that is made of paper wood is carried out stretch process and is formed with the cup section of bottom tube-like; And injection moulding operation, described cup section is configured in the mould and in the outer bottom injection moulding of described cup section from the outstanding foot of the outer surface of described outer bottom, described injection moulding operation is so that under the state that the part of the outer bottom of described cup section is exposed in the die cavity of described mould, this exposed portions serve around by the described cup of described mould holding section, and with resin injection in described die cavity, described foot is fixed on described cup section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103020022A CN103027548A (en) | 2011-09-28 | 2011-09-28 | Paper container and manufacturing method for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103020022A CN103027548A (en) | 2011-09-28 | 2011-09-28 | Paper container and manufacturing method for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103027548A true CN103027548A (en) | 2013-04-10 |
Family
ID=48015354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103020022A Pending CN103027548A (en) | 2011-09-28 | 2011-09-28 | Paper container and manufacturing method for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103027548A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068713A (en) * | 2013-08-13 | 2014-10-01 | 苏州天趣信息科技有限公司 | Anti-mosquito disposable paper cup |
| CN111850352A (en) * | 2020-07-14 | 2020-10-30 | 深圳市优点智慧科技有限公司 | Metal layer, paper pot and manufacturing method thereof |
| CN112123865A (en) * | 2020-09-24 | 2020-12-25 | 泉州市大宇纸塑制品有限公司 | Green and environment-friendly paper bowl with roll forming process and manufacturing method |
-
2011
- 2011-09-28 CN CN2011103020022A patent/CN103027548A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068713A (en) * | 2013-08-13 | 2014-10-01 | 苏州天趣信息科技有限公司 | Anti-mosquito disposable paper cup |
| CN111850352A (en) * | 2020-07-14 | 2020-10-30 | 深圳市优点智慧科技有限公司 | Metal layer, paper pot and manufacturing method thereof |
| CN112123865A (en) * | 2020-09-24 | 2020-12-25 | 泉州市大宇纸塑制品有限公司 | Green and environment-friendly paper bowl with roll forming process and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1714912B1 (en) | Heat insulating container | |
| CN105209345A (en) | Resealable leak-resistant containers having a molded pulp tray with a plastic lid | |
| CN103027548A (en) | Paper container and manufacturing method for same | |
| JP2013082484A (en) | Tube container | |
| KR20140065372A (en) | Improved paper cup | |
| EP3241658A1 (en) | Thin-wall injection moulded objects | |
| WO2016144809A1 (en) | Container closure | |
| US9573317B2 (en) | Thermoforming device | |
| JP2013542138A (en) | Folding paper cup side paper molding method and folding paper cup | |
| JP2014181043A (en) | Metal foil container | |
| JP2017148963A (en) | Manufacturing method of blow molding plastic bottle, blow molding plastic bottle, blow molding plastic bottle die and surface member | |
| CN102991797A (en) | Paper container and manufacturing method thereof | |
| KR101367018B1 (en) | Collapsible paper cup | |
| JPH06255643A (en) | Resin bottle container and manufacture thereof | |
| JP5666339B2 (en) | Paper container and manufacturing method thereof | |
| JP5587699B2 (en) | Manufacturing method of molded products for packaging | |
| JP5725880B2 (en) | Paper container and manufacturing method thereof | |
| CN102556770B (en) | Method for manufacturing tape-shaped body winding reel | |
| JP2006182411A (en) | In-mold container and its manufacture method | |
| JP2003170920A (en) | In-mold vessel | |
| JP6443712B2 (en) | Blow molded plastic bottle | |
| JP2011178400A (en) | Packaging container | |
| JP2017114526A (en) | Cup container with label | |
| JP3177267U (en) | Simple container | |
| CN216301794U (en) | Novel ice cream packaging paper bucket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |