CN1649723A - Three-dimensionally shaped corrugated fiberboard and its producing method - Google Patents
Three-dimensionally shaped corrugated fiberboard and its producing method Download PDFInfo
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- CN1649723A CN1649723A CNA028295161A CN02829516A CN1649723A CN 1649723 A CN1649723 A CN 1649723A CN A028295161 A CNA028295161 A CN A028295161A CN 02829516 A CN02829516 A CN 02829516A CN 1649723 A CN1649723 A CN 1649723A
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- corrugated case
- paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/36—Moistening and heating webs to facilitate mechanical deformation and drying deformed webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
- B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0754—The tools being other than rollers, e.g. belts or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0756—Characteristics of the incoming material, e.g. creped, embossed, corrugated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
A three-dimensionally shaped corrugated fiberboard having a bending part (5) or a curved surface part (16) provided, at least partially, in a paper corrugated fiberboard (1) formed by a core (2) of continuous waveform having a constant height, and a pair of liners (4) bonded to the top part (3) of the waveform through adhesive, wherein the bending part (5) or the curved surface part (16) is deformed plastically while sustaining the waveform of the core (2) substantially uniformly. A method for producing a three-dimensionally shaped corrugated fiberboard comprising a step for humidifying the liners (4) of the paper corrugated fiberboard, a step for imparting a three-dimensional shape to the paper corrugated fiberboard (1) by inserting it between a pair of dies (7) including a cavity side die (8) provided with a three-dimensional impression part (10) having the bending part (5) or the curved surface part (16) and a core side die (9) corresponding to the impression part (10) and then pressing the paper corrugated fiberboard (1), and a step for heating the paper corrugated fiberboard (1) and dehumidifying the liners (4) until the water content drops down to 3% or below.
Description
Technical field
The present invention system is used for field goods such as electrical machinery, automobile and building or is used for bale packing etc. to have the solid forming corrugated case product of three-dimensional shape, and narrates the corrugated case made of paper and the manufacture method thereof of its solid forming in detail.
Prior art
In recent years, the formed products great majority with three-dimensional shape are used for the goods of technical fields such as electrical machinery, automobile and building.This formed products material also uses the synthetic resin of easy formation complicated shape to make.And this synthetic resin singly do not have only goods, and most the use on the material such as semifinished piece bale packings.
But, the use of can regenerating mostly of these a little synthetic resin, but because of regeneration be inconsistent its commercial efficiency so, so handled to bury or to burn.Therefore can produce problems such as offal treatment or resource recovery, be surging gradually so utilize paper for the consumption consciousness of products such as main body.
For this reason, based on the corrugated case made of paper of paper to form the three-dimensional shape person, generally be corrugated case made of paper to be pressed be fixed shape, and this is set and have after three-dimensional shape corrugated case made of paper inserts the shaping mould, behind the press molding corrugated case made of paper broken into again fixed three-dimensional shape.
But, in the utilization shaping mould pressing/molding method, because of corrugated case made of paper itself has the structure of thickness and does not possess retractility, its corrugated case made of paper the straight length of crooked partial sum corrugated case medial surface made of paper and lateral surface different, so can produce fold or breakage.Especially when corrugated case bending made of paper during not along center waveform direction, easier generation fold or breakage.And have the corrugated case made of paper of three-dimensional shape just very not attractive in appearance as if the words that fold or breakage are arranged, commodity price can reduce, so for fold or damaged solution, be with before the shaping mould press molding with corrugated case made of paper, in advance with corrugated case made of paper the position of crooked flexion portion form after the broken line, by shaping mould press molding, along the crooked corrugated case made of paper of the formed broken line of this corrugated case made of paper, to form few, the unabroken solid forming corrugated case of fold.
But with the formed stereo shaping of known method corrugated case made of paper, system is by the formed broken line of corrugated case made of paper, the center of the shredded paper system of signature corrugated case, and be provided with the thickness attenuation of the part of broken line, so thin-walled place of a broken line, the effect of heat insulation of its corrugated case made of paper and buffering effect are not good, and the three-dimensional shape after it is shaped also can't be kept.
Secondly, the formed broken line of corrugated case made of paper partly only can form the polygon three-dimensional shape with bend mode, because the broken line relation is the three-dimensional shape that is difficult to form the three-dimensional shape of slick and sly flexion portion or curved face part and forms curved surface.
Summary of the invention
Therefore, the present invention is to provide one by preventing that corrugated case made of paper from being produced fold and breakage for solving the problem of above-mentioned known technology, and the solid forming corrugated case and the manufacture method thereof that have effect of heat insulation and buffering effect simultaneously and have a good appearance are problem.
For solving with known problem, the present invention is by the following technical solutions: the corrugated center of sustained height continuously, with the single face of then locating between solid or the formed corrugated case made of paper of straight line on two sides on aforementioned waves shape wave summit, at least a portion has the solid forming corrugated case of flexion portion, and aforementioned flexion portion keeps aforementioned center waveform and other parts plastic deformation under the state of homogeneous shape.
Therefore, corrugated case made of paper is all kept equal equal thickness for making all three-dimensional shapes, so corrugated case made of paper can be kept its heat insulation and buffering effect.
Form a plurality of independently switch-in parts that connect aforementioned corrugated case thickness direction made of paper in the aforementioned flexion of the present invention portion.
Therefore, for strengthening the straight line shaping degree of freedom of corrugated case flexion made of paper portion lateral surface, so can form complicated three-dimensional shape or draw shape (deep drawing).
Structure of the present invention is: the aforementioned straight line of aforementioned flexion portion medial surface has the bending spring of aforementioned corrugated case thickness made of paper more than 1.5 times.
Therefore, relax the stress concentration of corrugated case flexion made of paper portion, so can prevent flexion portion fold or breakage.
The present invention is the corrugated center of continuous sustained height, with the single face of then locating between solid or the formed corrugated case made of paper of straight line on two sides on aforementioned waves shape wave summit, at least a portion has the solid forming corrugated case of curved face part, and aforementioned curved face part has aforementioned center waveform and keeps plastic deformation under the homogeneous shape state.
Therefore, corrugated case made of paper is all kept equal equal thickness for making all three-dimensional shapes, so corrugated case made of paper is kept effect of heat insulation and buffering effect.
Structure of the present invention is: form a plurality of independently switch-in parts that connect aforementioned corrugated case thickness direction made of paper in the aforementioned curved face part.
Therefore, for strengthening the straight line shaping degree of freedom of corrugated case curved face part lateral surface made of paper, so can form complicated three-dimensional shape or draw shape (deep drawing).
The present invention is the corrugated center of continuous sustained height, with the single face of then locating between solid or the formed corrugated case made of paper of straight line on two sides on aforementioned waves shape wave summit, the humidification engineering of the aforementioned straight line of humidification, die cavity (cavity) side form with the portion that is dug into of three-dimensional shape with flexion portion (curved face part), and possessed between a pair of mould of corresponding aforementioned center (core) side form that is dug into portion, insert the corrugated case aforementioned made of paper of humidification by aforementioned humidification engineering, by pressurization with the aforementioned corrugated case made of paper moulding engineering that is three-dimensional shape, behind the aforementioned corrugated case made of paper of heating, with dehumidify heating engineering below 3% of aforementioned straight line water ratio.
Therefore, give linear telescopic by the humidification engineering of humidification straight line and make it flexible, prevent that the border of bending machining corrugated case made of paper from fold or breakage taking place.And by heating, the state that its corrugated case made of paper forms three-dimensional shape produces sclerosis in the dehumidifying back down, so can keep the three-dimensional shape of corrugated case made of paper.Moreover, because of the heating engineering the straight line water ratio than humidification engineering before corrugated case water ratio made of paper also low, so can promote the intensity of corrugated case made of paper.And, need not form the operation of broken line, marked down price is made the solid forming corrugated case.
Structure of the present invention is: aforementioned corrugated case made of paper adds wet treatment, the aforementioned straight line of a humidification aforementioned flexion portion or curved face part lateral surface in the aforementioned humidification engineering.
Therefore, under the situation that the deformation extent of flexion portion or curved face part diminishes, need not to add redundant moisture, the linear extension of giving lateral surface is after the three-dimensional shape of purpose is finished, and in the heating engineering in the case, is to shorten drying time.
And need not the center of humidification corrugated case made of paper,, can stabilize forming processing so the center waveform need not inhomogenous tortuous distortion.
Structure of the present invention is: the clearance (clearance) that die cavity side form and the formed compression process of center (core) side form of aforementioned a pair of mould are used is made as the preceding fluting board thickness 70～90% made of paper that is shaped.
Therefore, need not to increase the linearity that exceeds corrugated case made of paper and the stress of center proterties, the center of keeping corrugated homogeneity thickness direction compressive deformation is to form the product of finishing attractive in appearance.
Structure of the present invention is: in the aforementioned heating engineering, use the high frequency that is shone by the high frequency generation device, with all homogeneous heating and dehumidifications of aforementioned corrugated case made of paper.
Therefore, need not to heat a corrugated case part made of paper, so can not burn the straight line of part.And dehumidifying uniformly can be done in the straight line and the center of corrugated case made of paper, so can significantly shorten drying time.
Description of drawings
Fig. 1 represents to implement about solid forming corrugated case of the present invention the oblique drawing of kenel 1.
Fig. 2 is with the front elevation of implementing kenel 1.
Fig. 3 wants portion's section-drawing along Fig. 2 A-A line.
Fig. 4 is for by forming the method for corrugated case made of paper with embodiment 1 heating, pressurization, and wants portion's longitudinal diagram with what corrugated case made of paper was set as the mould state.
Fig. 5 is that the portion that wants that finishes corrugated case shaped state made of paper indulges section figure by form the method for corrugated case made of paper with embodiment 1 heating and pressurizing.
Fig. 6 for expression be shaped with embodiment 2 corrugated cases made of paper before constitution diagram, Fig. 6 a want portion's expansion planar view, Fig. 6 b for it and want portion's expansion section-drawing along Fig. 6 aB-B line.
Fig. 7 is at the front elevation with the 2nd kind of represented embodiment of the corrugated case made of paper of embodiment 1.
Fig. 8 is at the front elevation with the 3rd kind of represented embodiment of the corrugated case made of paper of embodiment 1.
The specific embodiment
Below utilize the embodiments of the invention drawing to be illustrated.
Fig. 1 or Fig. 5 are all the illustration of the expression embodiment of the invention 1.
Structure of the present invention at first is described, below explanation all is illustrated at the solid forming corrugated case with flexion portion and curved face part, but the present invention is not limited to this, as long as it is also applicable to have a solid forming corrugated case person of flexion portion or curved face part.
In Fig. 1, symbol 1 is a corrugated case made of paper, this corrugated case 1 made of paper is then to form at 4 in a pair of straight line (liner) at place, waveform summit 3 by the continuous wave shape wave center 2 of sustained height with solid (no icon), that is, constituted by general well-known two sides made of paper corrugated case.
And corrugated case made of paper 1 of the present invention is by mould 7 described later, corrugated case 1 made of paper all is compressed to 70%～90% of preceding corrugated case 1 thickness made of paper that is shaped, be out of shape afterwards keeping preceding center 2 wave modes that are shaped for slightly being platform shape ripple, corrugated case made of paper 1 itself is the plastic deformation three-dimensional shape that becomes to have flexion portion 5 curved face part 16 then.
And as shown in Figures 2 and 3, the flexion portion 5 of corrugated case 1 made of paper of the present invention and curved face part 16, the waveform direction that need not orientation center 2 can be kept waveform, and corrugated case made of paper 1 is formed with homogeneous thickness by the aspect portion 6 of no bending machining.Moreover the 5 medial surface straight line 4a of flexing portion that the bending machining deformation extent is big are formed by the bending spring of corrugated case 1 thickness made of paper more than 1.5 times, can relax the concentrated stress that when being shaped flexion portion 5 is caused.
Inferior person is illustrated at the manufacture method of the embodiment of the invention 1 solid forming corrugated case.
At first the straight line 4 in the slightly smooth corrugated case made of paper 1 is imposed moisture (humidification engineering).
Impose the water ratio of the straight line 4 of corrugated case 1 made of paper, and different, the water ratio that imposes the preceding corrugated case made of paper 1 of moisture usually is 6～8%, so must be also more than this water ratio according to corrugated case 1 thickness made of paper, material.But water ratio is too much, and water evaporates during heating can produce straight line 4 surface and have problems because of adding het expansion, and opposite, water ratio is very few, and straight line 4 is too stiff and can't be shaped, so be the best with 17～19% water ratio.
And, center 2 and straight line 4 have the words of same water ratio, its center 2 also can followed softening, when in aftermentioned moulding engineering, pressurizeing, can make center 2 waveforms to keep, also can reduce the adhesion of following center 2 and a pair of straight line 4 solids, then can cause center 2 and a pair of straight line 4 to come off, so do not adopted.
Yet, under the situation that flexion portion 5 or curved face part 16 deformation extents diminish, only need flexion portion 5 or curved face part 16 lateral surface straight lines 4 are imposed moisture, can prevent that fold or damaged situation from taking place, flexion portion 5 or curved face part 16 deformation extents become under the big situation, then flexion portion 5 or curved face part 16 medial surface straight line 4a and lateral surface straight line 4b two sides are imposed moisture.
Under the situation as the embodiment among Fig. 1 or Fig. 31, flexion portion 5 is connected the back and forms continuously recess and protuberance with curved face part 16, so above the center 2 or 4 straight line 4a and lateral surface 4b that form medial surface of following straight line, straight line 4 humidification all up and down.
Inferior person, by the humidification engineering form corrugated case 1 made of paper fixed three-dimensional shape implement the moulding engineering and the heating engineering.
So-called moulding engineering and heating engineering, as shown in Figure 4, the method that system's a pair of mould 7 of utilization is shaped, form three-dimensional shape by these a pair of mould 7 pressurizations corrugated case made of paper 1 back with curved surface, heat the moisture of removing behind the corrugated case 1 made of paper in the corrugated case 1 made of paper simultaneously, and the original state of three-dimensional shape is kept in sclerosis.
Die cavity side form 8 is provided with portion that is dug into 10 and corresponding set center (core) side form 9 of three-dimensional shape that originally is dug into portion 10 that forms the three-dimensional shape with curved surface, and 2 moulds constitute a pair of mould 7 about this.
And, be dug in this die cavity side form 8 portion 10 crooked flexion portion 11, formed by the bending spring of thickness more than 1.5 times of corrugated case 1 made of paper.
Inferior person, its center (core) side form 9 can constitute by the above-below direction move mode at least, can form ordered three-dimensional shape behind the corrugated case 1 made of paper that therefore pressurizes.Wherein, the mould face of center (core) side form 9 12 forms juts 13, and when die cavity side form 8 and center (core) side form 9 were overlapping, the bottom surface of lug boss 13 touched after the mould face 14 in die cavity side form 8, forms the clearance of decision amount of compression.Be the height H of the clearance of compression process, take the size of the thickness 70～90% before corrugated case 1 made of paper is shaped.
Moreover a pair of mould 7 is heated to ordered temperature for the moisture of evaporation humidification corrugated case made of paper 1 later.The material and the thickness of the corresponding corrugated case 1 made of paper of this heating-up temperature are set, heating-up temperature is during less than 100 ℃, corrugated case made of paper does not reach boiling and then can't dehumidify, and temperature reaches the words more than 170 ℃, the surface of considering corrugated case 1 made of paper can be burnt, thus generally with 100～170 ℃, be preferably in the temperature of setting a pair of mould 7 in 140～160 ℃ the scope.Be not particularly limited the method for this a pair of mould 7 of heating, can electric heating heating arrangement (no icon) be set at a pair of mould 7 and heat.
And, with a pair of mould 7 after the heating and with after, the high frequency generation device (no icon) of corrugated case 1 heating and dehumidification made of paper can be continued in a pair of mould 7.
Moreover, and the mould face 14 of die cavity side form 8 and the back apertures (no icon) that can flow out aqueous vapor by corrugated case 1 made of paper of a plurality of heating of 12 formation of the sub-face of center (core) side form submodule.
Yet the clearance for compression process die cavity side form 8 and center (core) side form 9 formed corrugated cases 1 made of paper are provided with is not limited to center (core) side form 9 and is provided with jut 13, can jut 13 be set at die cavity side form 8 yet.
And the aforementioned corrugated case made of paper 1 that imposes behind the humidification is inserted between die cavity side form and center (core) side form 9, as shown in Figure 5, center (core) side form 9 is movable to die cavity side form 8, and will be inserted into corrugated case made of paper 1 between a pair of mould 7, with center (core) side form 9 press moldings.
Pressure so that center (core) side form 9 is pressurizeed can cooperate the thickness of corrugated case 1 made of paper and formability to adjust, but use 0.1～0.3kg/cm mostly
2Pressure.
The corrugated case made of paper 1 that is pressurizeed with center (core) side form 9, the thickness of the height H of the clearance of using with compression process is formed, have retractility behind corrugated case 1 humidification made of paper simultaneously,, breakage can not take place so the straight line 4b of flexion portion 5 and curved face part 16 lateral surfaces can stretch; Flexion portion 5 and curved face part 16 medial surface straight line 4a then dwindle, and can not produce fold, form the corrugated case made of paper 1 of the three-dimensional shape with flexion portion 5 and curved face part 16 along the shape of a pair of mould 7.And, the center 2 of corresponding flexion portion 5 and curved face part 16, solid can not come off, and is deformed into platform shape ripple after doing one's utmost to keep the waveform before being shaped.
Moreover, when pressurizeing by the action of center (core) side form 9, touch the corrugated case made of paper 1 of a pair of mould 7 after the heating, moisture becomes aqueous vapor above boiling point by heating then, the center 2 of corrugated case 1 made of paper is by the some humidifications of this aqueous vapor, when giving the retractility of a certain degree, after aqueous vapor was discharged from the aperture that is formed at a pair of mould 7, moisture was discharged from corrugated case 1 made of paper.
And and with continuing at the high frequency generation device of a pair of mould 7, the high frequency that is irradiated by the high frequency generation device is with corrugated case 1 all homogeneous heating and dehumidifications made of paper, the water ratio of corrugated case made of paper center 2 and straight line 4 then is identical.
And the straight line 4 of corrugated case 1 made of paper flexible after, form under the state of three-dimensional shape with flexion portion 5 and curved face part 16, discharge the moisture after cure by corrugated case 1 made of paper, then finish the solid forming corrugated case after corrugated case 1 plastic deformation made of paper.
A pair of mould 7 after the heating and high frequency generation device are discharged the amount of moisture in the corrugated case 1 made of paper, than the water ratio 6～8% in the corrugated case 1 made of paper before being shaped, under dry status more, corrugated case 1 made of paper loses retractility more can strengthen intensity, so the water ratio of the straight line 4 of corrugated case 1 made of paper below 3%, is best near 0%.
And in present embodiment 1, not single some that limits corrugated case 1 made of paper forms the three-dimensional shape with flexion portion 5 and curved face part 16, anyly can be used as shaping mould person, for example external form is that the three-dimensional shape of the utensil of multiangular or the hemisphere face body that has only curved face part also can.
And utilization high frequency generation device, it is single that to limit heating and dehumidification corrugated case made of paper 1 all, also can be only by dehumidify corrugated case made of paper 1 behind the humidification of a pair of mould 7 after the heating
Moreover, also can print to the preceding corrugated case made of paper 1 that is shaped, be good with the ink and the pigment that also can not dissolve after the heating engineering.And print to 1 bent position person of corrugated case made of paper, can be because of telescopic relation, its printing generation distortion is so preferably be imprinted on part outside the flexion portion.
Thus formed solid forming corrugated case, be to have the corrugated center 2 of continuous sustained height, with then flexion portion 5 and curved face part 16 are arranged between solid in the some of a pair of straight line 4 formed corrugated cases 1 made of paper at place, waveform summit 3, and the waveform of center 2 waveforms of corresponding flexion portion 5 and curved face part 16 and other parts is kept under the state of homogeneous shape plastic deformation in addition.
And this solid forming corrugated case, humidification engineering by humidification straight line 4, moulding engineering with the forming stereo shape, form with the following manufacturing of water ratio heating and dehumidification to 3% straight line 4 of corrugated case made of paper, so flexion portion 5 and curved face part 16 are in the humidification engineering, give corrugated case 1 retractility made of paper, by moulding engineering and heating engineering, the straight line 4b of lateral surface then extends, the straight line 4a of medial surface then dwindles, therefore can prevent that situations such as fold or breakage from taking place, can form the good finished product of external form.And, as the formation broken line of known technology, because of the thickness of its corrugated case 1 made of paper does not have attenuation, so can not reduce the heat insulation of corrugated case 1 made of paper and buffering effect.Moreover, by heating corrugated case made of paper in that form under the state of three-dimensional shape can sclerosis, so corrugated case made of paper 1 can be kept the state that forms behind the three-dimensional shape.And before water ratio is reduced to shaping, then can strengthen the intensity of corrugated case made of paper.And need not form the job engineering of broken line, so can make the solid forming corrugated case more cheaply.
And the medial surface straight line 4a of the flexion portion 5 that the bending machining degree of deformation is big has the bending spring of corrugated case 1 thickness made of paper more than 1.5 times, takes place so more can prevent fold or damaged situation, forms three-dimensional shape.
Moreover, in the humidification engineering only with flexion portion 5 in the corrugated case 1 made of paper and curved face part 16 lateral surface straight line 4b humidifications, so the deformation extent of flexion portion 5 and curved face part 16 diminishes under the situation, need not redundant moisture just can give lateral surface straight line 4b extensibility and finish three-dimensional shape, in its heating engineering, drying time can be shortened.And, need not the center 2 of humidification corrugated case 1 made of paper, so need not inhomogenous folding, the waveform at center 2 bends the shaping processing that distortion can be stabilized.
Moreover, die cavity side form 8 and the used clearance of center (core) mould 9 formed corrugated case 1 compression process made of paper are set as 70～90% of corrugated case 1 thickness made of paper, so need not the additional stress that surpasses straight line and center 2 proterties, can keep center 2 corrugated homogeneity, the compressive deformation thickness direction, so straight line 4 can not produce fold or breakage, finish the good finished product of outward appearance.
Moreover, with a pair of mould 7 heating corrugated case made of paper, it is all to come homogeneous to heat corrugated case made of paper by the emitted high frequency of high frequency generation device simultaneously, so the corrugated case made of paper that can dehumidify, be to need not to heat corrugated case made of paper, straight line 4 parts can not burnt again.And the straight line 4 and the center 2 of the corrugated case 1 made of paper that can homogeneous dehumidifies are so can significantly shorten drying time.
Fig. 6 is the constitution diagram before the expression embodiment of the invention 2 corrugated cases made of paper are shaped.
The embodiment of the invention 2 is as shown in Figure 6, the continuous corrugated center 2 of sustained height, form with a pair of straight line 4 of then locating 3 between solid on the waveform summit, that is to say general well known plural number independently switch-in part 15 the two sides corrugated case crooked part penetrate into corrugated case 1 thickness direction made of paper, and mutual in length and breadth a plurality of formation.
Switch-in part 15 is cut into rectangular-shaped person, and corrugated case made of paper by the front end of switch-in part 15 damaged situation can take place when it was crooked, for anti-situation here takes place, is that toroidal 15a is cut at the rectangle two ends.
Use the corrugated case made of paper 1 that forms this plural switch-in part 15 thereafter, straight line 4 with embodiment 1 same configuration humidification corrugated case 1 made of paper, and insert between a pair of mould 7 by the corrugated case made of paper 1 of humidification engineering after with humidification, by the moulding engineering of pressurization with corrugated case forming stereo shape made of paper, behind heating corrugated case 1 made of paper, to below 3%, keep its waveform and other position and produce the solid forming corrugated case after being homogeneous state plastic deformation by the center 2 of corresponding flexion portion 5 and curved face part 16 with the water ratio dehumidifying of the straight line 4 of corrugated case 1 made of paper for utilization heating engineering.
Yet, in present embodiment 2, corrugated case 1 formed flexion portion 5 made of paper and curved face part 16 and switch-in part 15 are crisscross, but singly do not only limit to this, also can pass through corrugated case solid forming made of paper, longitudinal direction or transverse direction or be the radiation wire and form switch-in part 15 solid formings.
And switch-in part 15 links incision with two terminal circle shape 15a with rectangular mode, but does not singly only limit to this, also two terminal circle shape 15a can be linked in the mode of tearing.
The formed solid forming corrugated case of sample attitude like this, its a plurality of independently switch-in parts 15 connect corrugated case 1 thickness direction made of paper and are formed in flexion portion 5 and the curved face part 16, so than the solid forming corrugated case intensity that do not have to form switch-in part 15 slightly a little less than, but the flexion portion 5 and the curved face part 16 lateral surface straight line 4a that form switch-in part 15 more improve the shaping degree of freedom, so prevent damaged the generation, can form more complicated three-dimensional shape and draw shape (deep drawing).
Other structure and effect are identical with inventive embodiments 1, and same structure is enclosed prosign, are to omit repeat specification at this.
So, embodiment 1 discussed above and 2, system uses as the two sides corrugated case with corrugated case 1 made of paper, but the present invention does not singly only limit to this, other the 1st sample attitude among the expression embodiment 1, be as shown in Figure 7, only side is provided with other the 2nd sample attitude among straight line 4 and the expression embodiment 1 below center 2, as shown in Figure 8, only in 2 upsides be provided with straight line 4, also can use unilateral corrugated case.
Moreover, in the solid forming corrugated case with unilateral corrugated case formed thereby, the downside or the upside that do not have the center 2 of straight line 4, the ground paper flat board that posts corresponding its external form shape closes paper, the solid forming that is shaped with raw material closes paper 17, and the solid forming product made of paper with more tough effect of heat insulation and buffering effect are just originally finished.Herein, for the manufacture method that solid forming closes paper 17, the present invention only need adopt as being recorded in day technology of disclosure special permission 2000-177033 communique to get final product.
By the present invention, can prevent fold or damaged generation, need not simultaneously to reduce effect of heat insulation and buffering effect, is to produce the corrugated case made of paper with excellent three-dimensional shape, and the corrugated case of its solid forming is that the goods or the bale packing that can be used as fields such as electrical machinery, automobile and building use.
Claims (9)
1. solid forming corrugated case, it is characterized in that: the waveform center of continuous sustained height, with with solid then at the formed corrugated case made of paper of waveform summit place's straight line unilateral or two sides, at least one part has the solid forming corrugated case of flexion portion, and aforementioned flexion portion keeps aforementioned center waveform and other position plastic deformation under the state of homogeneous shape.
2. solid forming corrugated case as claimed in claim 1 is characterized in that: form the plural number switch-in part independently that connects aforementioned corrugated case thickness direction made of paper in the aforementioned flexion portion.
3. solid forming corrugated case as claimed in claim 1 or 2 is characterized in that: the aforementioned straight line of aforementioned flexion portion's medial surface has the bending spring of aforementioned corrugated case thickness made of paper more than 1.5 times.
4. solid forming corrugated case, it is characterized in that: the waveform center of continuous sustained height, then locate the formed corrugated case made of paper of the straight line unilateral or two sides with aforementioned between solid on the waveform summit, aforementioned curved face part is kept the homogeneous shape, plastic deformation under this state with aforementioned center waveform and other position.
5. solid forming corrugated case as claimed in claim 4 is characterized in that: the plural number that form to connect aforementioned corrugated case thickness direction made of paper in the aforementioned curved face part is switch-in part independently.
6. the manufacture method of a solid forming corrugated case, it is characterized in that: the waveform center of the continuous sustained height of humidification, with the aforementioned humidification engineering of then locating aforementioned straight line in the formed corrugated case made of paper of the straight line unilateral or two sides between solid on the waveform summit, with die cavity side form that is provided with the portion that is dug into that possesses flexion portion or curved face part, and possess between a pair of mould of the corresponding aforementioned central side mould that is dug into portion, by aforementioned humidification engineering, corrugated case aforementioned made of paper behind the insertion humidification, give the moulding engineering of aforementioned corrugated case three-dimensional shape made of paper by pressuring method, behind the aforementioned corrugated case made of paper of heating, with dehumidify heating engineering below 3% of the water ratio of aforementioned straight line.
7. the manufacture method of solid forming corrugated case as claimed in claim 6 is characterized in that: aforementioned corrugated case made of paper adds wet treatment, the only aforementioned straight line portion of humidification aforementioned flexion portion or curved face part lateral surface in the aforementioned humidification engineering.
8. as the manufacture method of claim 6 or 7 described solid forming corrugated cases, it is characterized in that: the clearance that aforementioned a pair of mould die cavity side form and central side compression process that mould forms are used is with the preceding corrugated case thickness 70～90% made of paper that is shaped.
9. as the manufacture method of each described solid forming corrugated case of claim 6 to 8, it is characterized in that: in the aforementioned heating engineering, use high frequency generation device irradiation high frequency, aforementioned corrugated case made of paper is made full homogeneous heating and dehumidification.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP254728/2002 | 2002-08-30 | ||
| JP2002254728 | 2002-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1649723A true CN1649723A (en) | 2005-08-03 |
Family
ID=31972850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028295161A Pending CN1649723A (en) | 2002-08-30 | 2002-12-05 | Three-dimensionally shaped corrugated fiberboard and its producing method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPWO2004022327A1 (en) |
| CN (1) | CN1649723A (en) |
| AU (1) | AU2002357587A1 (en) |
| WO (1) | WO2004022327A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582129A (en) * | 2012-02-29 | 2012-07-18 | 夏科 | Manufacturing system for paper packages and manufacturing method |
| CN103818775A (en) * | 2012-11-15 | 2014-05-28 | 住友电气工业株式会社 | Optical fiber winding method, reeled optical fiber, and optical fiber transport method |
| CN108215340A (en) * | 2018-01-26 | 2018-06-29 | 苏州工业园区明扬彩色包装印刷有限公司 | A kind of curved surface high frequency molding die and curved surface forming method |
| CN111546691A (en) * | 2020-05-14 | 2020-08-18 | 重庆凯成科技有限公司 | Manufacturing process of back-loading anti-theft arc-shaped paper product packaging box |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3460771A4 (en) * | 2016-06-14 | 2019-05-15 | Keiwa Inc. | Warning flare holding tool |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5310182A (en) * | 1976-07-15 | 1978-01-30 | Nissan Motor Co Ltd | Process for forming corrugated cardboard |
| JPS5418976Y2 (en) * | 1976-07-21 | 1979-07-14 | ||
| JPS54142288A (en) * | 1978-04-27 | 1979-11-06 | Nissan Motor Co Ltd | Molding of corrugated board |
| JPS6054867B2 (en) * | 1981-02-25 | 1985-12-02 | 日産自動車株式会社 | Cardboard forming method |
| JPH02235623A (en) * | 1989-03-09 | 1990-09-18 | Risaburo Yada | Double faced corrugated cardboard and preparation thereof |
| JPH08504705A (en) * | 1992-05-08 | 1996-05-21 | ビジー ボード プロパティーズ プロプライエタリー リミテッド | Molded container |
| JPH09272162A (en) * | 1996-02-09 | 1997-10-21 | Okabe Eng Kk | Preparation of paper molded article in dry process by using wastepaper |
| JP2001252994A (en) * | 2000-03-13 | 2001-09-18 | Kondo Machinery Co | Corrugated board molded form and its manufacturing method |
| JP4023124B2 (en) * | 2000-10-03 | 2007-12-19 | 王子製紙株式会社 | Paper molded container and method for manufacturing the same |
-
2002
- 2002-12-05 CN CNA028295161A patent/CN1649723A/en active Pending
- 2002-12-05 JP JP2004534080A patent/JPWO2004022327A1/en active Pending
- 2002-12-05 WO PCT/JP2002/012800 patent/WO2004022327A1/en active Application Filing
- 2002-12-05 AU AU2002357587A patent/AU2002357587A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582129A (en) * | 2012-02-29 | 2012-07-18 | 夏科 | Manufacturing system for paper packages and manufacturing method |
| CN103818775A (en) * | 2012-11-15 | 2014-05-28 | 住友电气工业株式会社 | Optical fiber winding method, reeled optical fiber, and optical fiber transport method |
| CN108215340A (en) * | 2018-01-26 | 2018-06-29 | 苏州工业园区明扬彩色包装印刷有限公司 | A kind of curved surface high frequency molding die and curved surface forming method |
| CN111546691A (en) * | 2020-05-14 | 2020-08-18 | 重庆凯成科技有限公司 | Manufacturing process of back-loading anti-theft arc-shaped paper product packaging box |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004022327A1 (en) | 2004-03-18 |
| JPWO2004022327A1 (en) | 2005-12-22 |
| AU2002357587A1 (en) | 2004-03-29 |
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