CN1025061C - Method for manufacture of load-carrying elements, including pallets - Google Patents

Abstract

By means of a procedure for the manufacture of load carrying elements, including pallets, a fluidized fibre raw material is deposited on a moulding foundation through suction of a pulp of the fibre raw material on that foundation. For this purpose the foundation is applied with an easily drainable pulp created by the fluidized fibre raw material in such an amount and the suction is carried out controlled in such a way that on the foundation through suction a fibre raw material is deposited having such wall thickness that substantially provides the desired load capacity of the element.

Description

Method for manufacture of load-carrying elements, including pallets

The present invention relates to the method that a kind of manufacturing comprises the bearing carrier of pallet, this method is to utilize the fiber raw material slurries that are pumped in the die holder that the fluidisation fiber raw material is deposited on the die holder.

The fluidisation fiber raw material be meant a kind of may be wet, have fiber properties and be suitable for processing the parent material of desired object.This parent material can for example be for example be used to make the article that are used for packing frangible and easy damaged, such as fruit, fresh flower, egg, and the pallet of article such as glass and the fibre stuff of carton.This slurry contains the fibrous cellulose of suspension usually.

As everyone knows, used a kind of like this production technology for this purpose, in this technology, be attached to the parent material of slurries shape on the profile shaped profile of mould by deposition process, this mould is permeable, it can make gaseous working medium pass mold materials by swabbing action and act on this parent material, thereby by being pumped in the appearance profile that forms material on the mould.

The objective of the invention is to use a kind of slurry that is easy to draining especially to make the bearing carrier that thickness enlarges markedly, the thickness of realizing by the drainage that increases material increasing is to increase the bearing capacity of member.

The purpose that the present invention stated is to realize like this, slurries are from by using a kind of containing at least in part by previous separation, the long stapled parent material that has the control dry grinding to provide to provide than the material improvement of anhydrating the described fluidisation raw material preparing of performance to come out, described slurries are applied on the described die holder with the amount of determining, swabbing action is to carry out in the mode of dosage, thereby by suction the fibrous raw material layer is deposited on the described die holder with the thickness of determining, this thickness guarantees the demands for bearing capacity that member is required basically.

Use above-mentioned production technology, can produce member equally such as the high bearing capacity of pallet and building element; Opposite with above-mentioned packing example, it can demonstrate quite all even smooth outer surface, and itself shows the shape stability of height.Deposition determines that the fiber raw material layer of thickness means that the negative pressure that is used for aspirating may obtain a kind of like this density of material at the fiber raw material layer, directly on the outer surface of the material layer of die surface, density is the highest, and begins the tool humidification from the neutral line that connects the deposition object.

The bed thickness of tool member by utilizing, the bearing capacity of this member can change by the swabbing action of corresponding topical variation in the associating aspiration procedure that the required fiber pulp liquid measure of manufacturing whole member is carried out obtain also to distribute thereon on the fiber raw material layer place or many places bed thickness according to the present invention and improve.So can enough same courses of work, be about to fiber raw material and be deposited upon process on the die holder, can form the desired final profile of this member and in the real material of formed parts, make and have the modeling structure that improves bearing capacity by the thickness of Material Used layer.According to the present invention, this structure can for example be configured as the cross-linked network lattice structure that has thicker thick layer with respect to other parts of member.

According to the present invention, the characteristics of finishing the suitable method of this method are, for the fiber raw material slurries that are easy to draining are drawn into desired thickness, used a kind of mould, it allows gaseous state active operation medium osmosis under negative pressure condition, and the die surface that a permeable working media is arranged, this surperficial permeability can be by regulating by the thickness that slurries is aspirated the fiber raw material layer that is deposited on this die surface.

The reciprocation between the suction capactity of the drainability of slurries and die surface can be realized by this way, thereby the component part that has corresponding to the thicker fiber layer thickness of desired bearing capacity can be reasonably made.

Localized variation for the thickness of the fiber raw material layer that obtains object, according to the present invention, can use the penetrability of its mold surface can be corresponding to the localized variation of the thickness that is deposited on the fiber pulp bed of material that is easy to draining on the mold surface by suction or the mould that the cross-linked network lattice structure changes.

This means that the deposition of fiber raw material on mold surface will change according to the permeability of mold surface, this will cause the localized variation of swabbing action, place in the mold surface poor permeability, the deposition of fiber raw material will reduce, on the contrary, in the strong place of mold surface permeability, deposition will increase.

According to the present invention, the embodiment of this method is characterised in that, use the easy draining slurries that fiber raw material is made to be drawn into the mould of desired thickness, this mould is permeable gaseous state active operation medium under negative pressure, and its profile shaped portion contains the part composite at least, the particle of this composite is fixed together to form the die surface of stable topography profile, define the path of working media simultaneously, these paths stretch and pass the outer surface that composite leads to mould, and the thickness that forms the composite layer of die surface at least can be regulated according to the thickness that deposits to the fiber raw material on the die surface by the suction slurries.

A kind of like this mould can be by cheap inorganic material, make such as sand, the production technology of its use be simple, the cycle is short thereby also be cheap.Total producing cost of mould maintains low-level, and therefore this embodiment also just is applicable to the production of be pilot.

In order to obtain the thick layer by layer localized variation of fiber raw material on the object, according to the present invention, can use a kind of like this mould, in this mould, the composite that forms die surface has a kind of like this thickness, and this thickness changes according to thick layer by layer localized variation or the cross-linked network lattice structure of the fibre stuff that is easy to draining that is deposited on the die surface by suction.

According to the present invention, can use a kind of like this mould, the permeable surface of this mould is formed by having the particle that changes granularity, and its granularity is smaller at the position, mould surface that forms mould, and wanting of the mould surface support layer under it is big.Just can obtain by this way to help the path that air flows, simultaneously, concerning processed member, can obtain a quite smooth forming mould surface, thereby make member obtain a smooth surface.

The needed mould strength of production process can obtain by plain mode, Here it is mixes the mould pellet with suitable bonding (this adhesive can contain adhesion enhancer) mutually, hardens and makes said mould by this mixture being carried out for example heat treatment.Can also obtain intensity by in pellet, adding wedging agent.

Furthermore, according to the present invention, can use a kind of like this mould, this mould has a substrate in the bottom, compound particle on the substrate can couple together by a kind of real melting compound, and mould has the pellet of remainder to couple together by a kind of curable adhesive.The characteristics of such mould are to have high strength, make it can resist sizable operating pressure.

The present invention also comprises a kind of like this mould of use, and the mould surface of this mould can be shaped as has certain intensity, makes this mould can be used for the final pressure processing of this molded components.Final pressure processing not only can be used for removing fast the moisture content that is deposited in the lip-deep pulp layer of mould, but also can in the quite thick fibrous material layer of deposition, obtain good especially density of material, therefore, it can obtain the shape stability of height for final products.

By suitably selecting the distribution of granularity and pellet, can obtain the porosity of desired mould, the composition on this permeable mould surface not only can obtain the fixed compound between the pellet perfect condition, but also can obtain that suitable porosity is avoided passing the constituent material of unnecessary such densification and the unnecessary pressure that causes falls.

Said process and mould can be used to produce in practicality by various fibrous suspensions and the made member of auxiliary material, and these auxiliary material are for producing by being pumped in the material layer that obtains on the mould that to connect be essential.

Can finish like this by the shifting out on putting into practice of object of using gaseous working medium that the fluidisation fiber raw material is deposited on to form on the shaping outer surface on mould surface, promptly use compressed air to affact on the object, thereby realize the demoulding by the air duct of mould.But this moment, in fact object remained quite soft, therefore, in order to shift out object from mold, preferably used a kind of transfer mould; To shift out object and subsequently object is put into the purpose that conveyer belt is delivered to drying room in order to reach from mold outer surface, this transfer mould is designed to interact with not producing towards the object surface of the outer surface of described finishing die.Scope of the present invention also comprises with a kind of like this transfer mold of above-mentioned particulate composite manufacturing,, described material granule produces a kind of open type, firm structure by being bonded together, have the air duct that is stretched over mold outer surface in this structure, and be connected to produce suction effect with a vacuum source.

Make on the basis of the object that the transfer mould can directly be made in mold, on the one side that deviates from said mold on this object, make the first auxiliary mould (die) with gypsum, upward make the second auxiliary mould (punch) with gypsum at this first auxiliary mould (die), said transfer mould (die) just directly forms on this second auxiliary mould.

Before deposition process begins or before the transfer process, must keep permeable mould surface cleaning, make the mould surface bear the cleaning of air draught of the gas passage of the mould that flows through.

The mould by pellet composites constituted that uses among the present invention can be made in such a way, makes it can regenerate after the use or under abrasion condition, but because the granular constituent material recirculation use of mould.

According to the present invention, easily the manufacturing of draining slurries is carried out like this, be to comprise a considerable amount of long stapled parent materials in the fiber raw material at least, a part is by shaking out in pulper, another part then by previous separation, have control dry grinding to make slurries, parent material after treatment is separated into doses and is separated into filament, thereby makes the slurries of preparing to manufacture object.

In order to make processing object required slurry, in the process of fiber raw material, particularly when fiber raw material with the form (such as waste paper) of the dry of packing when providing, the use of pulper is exactly a basic step.

In pulper, produce powerful eddy flow, make the mutual friction of raw-material single part phase thereby pulverized, make raw material be separated into fiber.

Particularly, must consider to separate successively using under heterogeneous material, the situation such as waste paper and recyclable papers, make the fiber that disengages earlier than after the fiber that the disengages additional treatments of bearing higher degree.In other words, the process in broken machine is uncontrolled, so slurries are not single.Said additional processing cause degree of grinding (° SR-Schopper-Riegler) thus raising and accelerate the formation of mucus in pulper, this draining subsequently to the object made from pulping has negative effect, and has increased the contraction of object in material draining and material dry run.

The method according to this invention makes a kind of fiber raw material be added in the slurries at least in part, fiber in this fiber raw material has been separated into filament to a great extent, and Here it is can be more promptly and be easy in pulper to realize the reason of autogenous grinding effect and mixed effect simultaneously.Because a kind of more uniform raw material of pulper processing, simultaneously in pulper the degree of grinding by the autogenous grinding acquisition also can be adjusted to more even, above-mentioned be combined in the slurries that leave pulper water thereby more can be controlled.

But same process also can be brought other advantage, and these advantages are valuable especially in the waste paper recycling.

Recirculation waste paper has many different qualities and grade, if such material separated, has the dry grinding of control before shaking out from pulper, usually can use a kind of ratio only to lean against and shake out in the pulper to separate to add the more cheap rudimentary material of used material in man-hour.

The present invention includes previous separation, have control dry grinding process to realize, therefore can parent material be separated by dosage a kind of special effective and efficient manner in the mode of the rapid technical process of multistep.

With this specific process, can other pellet that be separated into the fiber of required degree just like the waste paper material of plastics, waterproof paper, the laminated cardboard of plastics and paper will be contained.Isolated is not that the component of paper was sifted out before entering pulper, perhaps can allow these components that exist with powder type enter subsequently production process.

In an embodiment of this method, be added in the slurries that in pulper, formed through the long fiber parent material that separates, has the control dry grinding, and every shaking out of therewith standing to fix a time frame.

Can be made into a kind of like this object in this way, its fibrous material partly is mainly bonding by the hydrogen bond of fiber, and part is then mixed its bonding glue that then uses usually with the air suspension fibrous material.Proved already that in this way whole slurries that just can abandoning tradition were realized bondingly by hydrogen bond, this means the draining and the production time that can significantly reduce object.And owing to can accurately control the strength characteristics of object by adding glue, this method also just can the required object strength characteristics of strict control.

These advantages are crucial for rational, the economic suitability for industrialized production that the described liposuction technique of application carries out object large-scale, dimensionally stable.

For example can be by using a shredder, being also referred to as pulping device and processing, along with processing at beater grinder to carry out the multi-stag dry grinding, described beater grinder is accepted material from pulping device, and if necessary, can be added to by given dose at material and make before shaking out in the pulper it bear further mill processing.

The separation of before in pulper, the shaking out of suggestion fiber raw material being carried out according to the present invention, have control dry grinding operation also to provide to be shrinkproof and to be the possibility of the object of constant dimension with the manufacturing of recirculation waste paper.Shrinkage ratio cellulose fibre little with parent material of high-load wood fibre.Through proving, by using method of the present invention, even can in lignocellulose raw material, add cheap recyclable papers suitable component, that comprise not necessarily wooden waste paperboard.Because before separated, had control dry grinding just can make the slurries that a kind of object that can not make manufacturing has undesirable contraction to raw material.

In the process of manufacturing by the object of fluidisation fiber raw material system, utilizing auxiliary material such as filler, chemical substance and adhesive is well-known principle.Auxiliary material have determined intensity, hardness, transparency, pliability and the absorbability of the object of manufacturing.Advantage of the present invention is also relevant with these auxiliary material.

Manufacture process is divided into multistep has in fact increased the possibility of adding auxiliary material in the different step in whole manufacturing process suddenly.The open architecture of the final slurries that obtained as the result of this special invention, even helps auxiliary material and obtains good path, adhesives can be applied to make it to be combined in more or less object surface to increase wall intensity.The adding auxiliary material were particularly conducive to and promoted that auxiliary material were evenly distributed in the fibrous matter of making when before separating, having the control dry grinding.Certainly also auxiliary material can be added in the pulper.

And scope of the present invention is also included within shakes out in the pulper as a process, depends on previous separation, the control dry grinding is arranged.In other words, in pulper, need the degree of the autogenous grinding that obtains to regulate according to situation about realizing in the step of formerly dry grinding.For example, a kind of to be separated into a kind of mill degree normal, that obtain in autogenous grinding in pulper be 60 ° of SR(Schopper-Riegler) paper pulp, in this paper pulp, add fibrous material through dry grinding, mixture was reprocessed in pulper 5 minutes then.The object that makes with this mixed serum can have king-sized thickness, porosity and permeability.Therefore this means that product can have good drainage performance, can be made into and have bigger wall thickness.

Easy draining slurries constructed in accordance are even under the situation of making big wall thickness article, also be to help without a doubt fibre suspension is applied on the mould equably.

Waste paper also claims to reclaim paper, and its composition may be very complicated, can contain the fiber of multiple different length.But, prove in fact, when this paper wood during,, thereby can obtain above-mentioned especially in regard to drainage and structural advantage because its average fiber length is enough big as the material of manufacture process of the present invention a part of.

Method of the present invention equally also is suitable for the processing of virgin material.

The present invention is described in detail below in conjunction with the accompanying drawings, in the accompanying drawings,

Fig. 1 illustrates the summary in each process segment in the technical process with the form of chart, and these process segments will appear in the technical process of Production Example as a pallet;

Fig. 2 is the example of various stage combinations in the technical process;

Fig. 3 is the isometric drawing of first embodiment of the bearing carrier of the tray form that adopts technology of the present invention and make, and shows an angle part on this pallet, and angle part and pallet that this is actual are separated;

Fig. 4 is the diagrammatic side view of another embodiment of pallet;

(Fig. 5 a) for the cutaway view that Fig. 5 cuts for the side view (Fig. 5 b) of the 3rd embodiment of pallet with along the V-V line of Fig. 5 b;

Fig. 6 is the diagrammatic side view of the 4th embodiment of pallet;

Fig. 7 is the isometric drawing of the 5th embodiment of pallet;

Fig. 8 is the schematic sectional view of the 6th embodiment of pallet;

Fig. 9 is the schematic diagram of the pallet of belt tension rope;

Figure 10 is the schematic diagram with the pallet of wooden support rail;

Figure 11 is the schematic diagram of the pallet of the supporting rail made of band fiber raw material;

Figure 12 serves as reasons and has the schematic sectional view of the pallet that the member that changes bed thickness constitutes;

Figure 13 is another embodiment of above-mentioned pallet;

Figure 14 is the 3rd embodiment of pallet that contains the member of single variation bed thickness;

Figure 15 is the cutaway view of an embodiment of tray supporting pin;

Figure 16 is the schematic diagram that has the mould of the member that is formed by the fibrous material deposition, and the member both of die surface and deposition has the bed thickness of variation.

Technical process illustrated in figures 1 and 2 comprises 14 process segments altogether, according to this production technology, production technology can be by adopting all or only adopt the above-mentioned stage of part realize, but adopt the part stage, its product is incorporated in the relevant production technology as a supplement can brings some problems then.

Example 1

Adopt 14 all stages.

Example 2

In employing stage 1 to the stage 5, the back connects stage 8 and 9 again, adopts the stage 11 to 14 at last.

Example 3

Article one, production line is used for implementation phase 1 to the stage 5, and another production line is used for implementation phase 4 and may also can comprises the stage 5,6 and 7.Producing thread wet fiber slurry from second is added to from the 1st product that production line comes out and goes.This operation is normally gone down continuously by several stages in succession.

By this method, making a kind of product, therein, mainly is to be bonded together by hydrogen bonded from the 2nd fibrous material that production line makes, article 1, production line is then produced and is suspended in airborne fibrous material, and it is bonding normally realizes by glue.Like this, just, can realize the interpolation of the glue of best reduction ratio and the best simultaneously.This means that this process implementing example allows the raw-material quality that obtains is taken all factors into consideration.

Below will narrate some embodiment that produce pallet.These pallets create by technology of the present invention.

Shown in the process chart of Fig. 1 and Fig. 2, these pallets are to be made by a kind of suspended matter of fluidisation fiber raw material, and this moment, suspended matter was in liquid phase, was deposited on the outline shaping die holder by swabbing action.As mentioned above, a kind of easy draining slurries are produced by this fluidisation fiber raw material, these slurries are deposited on the described outline shaping die holder with certain deal, be used for the negative swabbing pressure that these slurries are deposited on this die holder is controlled in some way, the fiber raw material layer is deposited on this die holder with certain thickness, obtains the required bearing capacity of made member (is pallet at this) with these fundamentals.

The moisture of used slurries can be up to 70%, and this moisture is extruded and/or dry the removal subsequently.Because these final products just bearing capacity of pallet depend on the thickness that is deposited on the fiber raw material layer on the outline shaping die holder basically, thus carry out the main prerequisite of economical rationality production be exactly used slurries are easy drainings.The present invention includes the production process of the slurries that have this characteristic.

These final products can be used as it is at this moment, maybe can be used for constituting another kind of final products together with product roughly the same, for example a kind of laminate structures part.

Experience show can produce in this way 5 to 8Kg low net weight, be of a size of the pallet that 800 * 1200mm, load capacity are about 500Kg.Bearing capacity depends on the quality of used fibre suspension and actual carrier structure design, provides some examples below.

Fig. 3 schematically illustrates the part of pallet 10, and this tray design becomes the leg and the ribs of band one.

Example a: make in single process, three-dimensional dimension is 800 * 1200 * 120, and " wetting " heavily is 18Kg, and dry back weight is 6Kg.

Example b: three-dimensional dimension is 800 * 1200 * 120, and " wetting " is 18Kg heavily, and weight is 12Kg after the hot pressing, and dry back weight is 6Kg.

Fig. 4 schematically illustrates the pallet of a laminate structures form, and this pallet has a bottom 16, and it is equivalent to the part 10 among Fig. 3 basically, also has the flat cover plate 18 on a upper strata, and it is also according to process design of the present invention.

Example c: three-dimensional dimension is 800 * 1200 * 123, and " wetting " of the part 16 on the pallet heavily is 12Kg, and dry back weight is 4Kg.Cover plate 18 is made on a flat die surface, and it " wets " is 6Kg heavily, and weight is 4Kg after the hot pressing, and dry back weight is 2Kg, and these cover plate 18 quilts are glued on bottom 16.

Cover plate 18 can have the hole, is used for accepting to stack the leg of a pallet at an upper portion thereof.

Fig. 5 illustrates and identic pallet shown in Figure 4, and still, its difference is that top 20 solid formings of this pallet become band ribs 22, and these ribs 22 are corresponding to the shaping flank 24 that is formed on the bottom 16.Be of a size of 600 * 800 * 140.

Example d: the bottom 16 of this pallet is designed to " wetting " and heavily is 7.5Kg, and dry back weight is 2.5Kg, and it heavily is 4.5Kg that the upper design of this pallet becomes " wetting ", and dry back weight is 1.5Kg.

Fig. 6 illustrates a pallet, is of a size of 800 * 1200 * 150.

Example e: this pallet has the core 26 of a solid, and it " wets " heavily is 6Kg, and dry back weight is 2Kg; Pallet also has two cover plates that are shaped 28 on flat die surface, it " wets " is 6Kg heavily, and weight is 4Kg after the hot pressing, and dry back weight is 2Kg.In addition, this pallet also has the leg 30 of 9 solids, and " the wetting " of each heavily is 0.3Kg, and dry back weight is 0.1Kg.The consumption that is used to assemble the glue of cover plate and leg is 0.05Kg.Final products weight is 6.95Kg.

Fig. 7 illustrates a pallet, is of a size of 800 * 1200 * 150.

Example f: this pallet is made up of two uniform three-dimensional plates 32, has on each plate 32 to cross out this plate shape projection 34 part, hollow.This two plate reclines in opposite directions and mutually with the projection on it 34 and is fitted together.

" wetting " of each plate 32 heavily is 9Kg, and dry back weight is 3Kg, and each plate 32 has 9 legs that 100mm is high, and " wetting " of each leg heavily is 0.3Kg, and dry back weight is 0.1Kg.The assembling glue consumption is 0.05Kg, and final products weight is 6.95Kg.

Fig. 8 illustrates a pallet that the central plate 36 of two trapezoid cross sections is arranged, and the rib 38 on the central plate intersects to be placed, and this pallet also comprises two outside flat decks 40.The leg that is not illustrated is adhesive on the face of these plates.

The plate 36 and 40 of trapezoidal peaceful shape all can be interrupted moulding by single-piece respectively, or makes by protruding and recessed pressure shape roller flat or that have the trapezoid cross section on the circulation conveyer belt continuously.Can make pallet production have flexibility highly like this, because can select the some more or less pallet number of plies, and, because employing is pressure processing, therefore, only can cause lower drying process expense.

Example g: the backing plate 36 of two trapezoid cross sections " wetting " after molded is 4.5Kg heavily, and " the wetting " after the pressure processing heavily is 3.0Kg, and dried weight is 1.5Kg.The molded back " wetting " of two flat decks 40 is 4.5Kg heavily, and " the wetting " after the pressure processing heavily is 3.0Kg, and dry back weight is 1.5Kg.In 9 leg (not shown)s each " wetting " after molded heavily is 3.0Kg, and dried weight is 0.1Kg.The assembling glue consumption is 0.05Kg.

In the above-described embodiments, the plate of pallet and leg can be shaped in an associating suction operation together, and perhaps they can be formed separately in the suction operation of separating.These legs, if necessary, can also adopt fiber raw material other materials in addition to make, but experience shows, adopt technical process of the present invention, can be so that the leg of producing have enough bearing capacitys and robustness, and have lighter weight simultaneously, as in above embodiment, being mentioned.

And, using technology of the present invention, when requiring extra high intensity, can without a doubt special fortifying fibre be added in the fiber slurry.

In component design process, also can consider to place additional external bearer part.Fig. 9 illustrates to Figure 11 common several examples of for example using load bearing component wooden supporting rail 44, tray form is housed, as shown in Figure 9, supporting rail 44 is contained in below the pallet leg, perhaps as shown in figure 11, used one to constitute and use the special tray framework made from the same material of the board 52 of pallet 50 by leg 46 and common supporting rail 48.

As already mentioned, feature of the present invention, be that the fibrous raw material layer deposits with such thickness and makes it produce required bearing capacity in fact, this just provides the possibility of utilizing bed thickness to improve its bearing capacity, the variation of fiber raw material layer is embodied in the variation of bed thickness, for example, can form a kind of network that is cross-linked with each other.This means the variation by bed thickness, for example make rib-like structure, bed thickness that should the place on the member is just greater than other zones of parts.If the shaping and the layout of this or similar configuration suit, just can make this member obtain the rigidity that improves, thus its bearing capacity improved.

Figure 12 to Figure 15 shows several examples of such varied in thickness.As top also mentioned, this variation realizes by using a mould that can see through gas working dielectric under negative pressure, this mould has a mould surface, and it can allow this working media see through, and its permeability changes according to the required variation of member bed thickness.

Figure 12 illustrates a cutaway view that the pallet of two rib shape internals 54 is arranged, and two flat decks 56 are stamped in the outside of these members 54.Each internals 54 creates from the fiber raw material on the die surface that is deposited on the suction mould by a single production process, and wall thickness changes to from the rib top at the bottom of the rib, and thickest is at 54a place, rib top, and minimum wall thickness (MINI W.) is the 54b place at the bottom of rib.The cross-sectional profiles of rib is triangular in shape, and internals 54 reclines mutually at 54a place, its top.

Figure 13 illustrates the cross section of same-type pallet, but its difference is that its internals 54 reclines mutually at its 54b place, bottom, thereby makes rib top 54a support cover plate 56.

Figure 14 only illustrates the pallet with a single internals 58, and its top 58a and bottom 58b head on outside flat deck 60 respectively.As mentioned above, this internals 58 also is produced by a single production process, the variation of its bed thickness be at rib top 58a place maximum and at the bottom of rib 58b place minimum.

Figure 15 illustrates an example of the leg 62 of a pallet.This leg 62 is a jar shape, and makes by the single production process that fiber raw material is aspirated as mentioned above.This member also has different bed thickness, and is thicker at bottom 62b place.

How this variation that Figure 16 shows bed thickness realizes according to the present invention.What illustrate to meaning as shown is such, the easy draining slurries that the mould 64 that can allow gas the Worker's Stadium medium see through under negative pressure is used for being made by the fluidisation fiber raw material are drawn on the die surface, and a die surface 66 that can allow described working media see through is arranged on this mould.In order to form material layer at the thicker rib shape tray component 68 that the 68b place then approaches at the bottom of rib in 68a place, rib top, employing has the mould of the diactinic rib shape die surface 66 of variation, this die surface 66 is thicker at 64b place, die surface top, and thinner at 64a place, die surface bottom.The result is, swabbing action that the die surface that is made of die surface top 64b is partly located a little less than, the swabbing action of partly locating at the die surface that is made of die surface bottom 64a is then stronger, therefore, when the fiber slurry that the fibrous material on die surface is made aspirates, deposition on the 64b of die surface top is just few, and the deposition on the 64a of die surface bottom is just many, and the appearance of bed thickness of Xing Chenging and rib has realized the intensity of bigger thickness and Geng Gao like this.This production technology can be used for many and different bed thickness in principle and changes relevant aspect, and above-mentioned is a kind of typical example.

Practicality of the present invention is described by some examples of above-mentioned pallet.The present invention also can equally advantageously be used for making the bearing carrier of many other kinds, comprises the wall member, construction member and the insulating component that are used for various objectives.In addition, the above has shown that technical process of the present invention opened up the field of the suitable applications of many kinds of parent materials and additive.The present invention has also opened up without a doubt paper tinsel shape or WEB has been combined in the possibility of making the object outside.

Claims (21)

1, a kind of manufacturing comprises the method for the load bearing component of pallet, by the fluidisation fiber raw material slurries on the shaping die holder are aspirated, this fluidisation fiber raw material is deposited on this shaping die holder, it is characterized in that, slurries are from by using a kind of containing at least in part by previous to separate, the long stapled parent material that has the control dry grinding to provide provides than the material improvement of anhydrating the described fluidisation fiber raw material of performance to prepare, described slurries are applied on the described die holder with the amount of determining, swabbing action is to control in the mode of dosage to carry out, by suction the fiber raw material layer is deposited on this die holder with the wall thickness of determining, this wall thickness satisfies the required demands for bearing capacity of member in fact.

2, method according to claim 1, it is characterized in that, place on this whole fiber raw material layer or the varied in thickness of many places are to be produced by the corresponding localized variation of swabbing action in the technical process of the integral suction that the fiber slurry required to the whole member that will make carries out.

3, method according to claim 2 is characterized in that, the wall thickness of fiber raw material layer deposits corresponding to required bearing capacity, and this process is to compare the cross-linked network lattice structure with relatively thick by formation with other positions to realize.

4, according to any described method among the claim 1-3, it is characterized in that, for the easy draining slurries that this fiber raw material is made are pumped to required wall thickness, use the mould that under negative pressure, can allow gas working dielectric see through, this mould has a die surface that can allow working media see through, and the thickness of mould is regulated according to the deposit thickness of the fiber raw material layer of determining that obtains after these lip-deep slurries are aspirated.

5, method according to claim 4, it is characterized in that, the die surface of mould therefor has permeability, and this permeability changes in corresponding topical varied in thickness or the required cross-linked network lattice structure different wall that caused of swabbing action deposit on this profiled surface with easy draining fiber pulp liquid layer.

6, method according to claim 4, it is characterized in that, for being drawn into required wall thickness by the easy draining slurries that fiber raw material is made, use the mould that under negative pressure, can allow gas working dielectric see through, at least the outline shaped portion of this mould is made by the particulate composite that exists with the fluidised form form, these particles are bonded together partially basically by adhesive and provide interconnective crosslinked support frame to form a rock-steady structure, the appearance profile of dimensionally stable, and form between particle from mould inside and stretch the open channel of establishing for working media that material by mould arrives the outer surface of mould, the thickness that therefore forms the composite layer of this die surface is at least regulated to this lip-deep thickness in the swabbing action deposit according to the fiber raw material layer.

7, method according to claim 4 is characterized in that, used mould, and its infiltration die surface is made up of particles with different sizes, and the particle size on the profiled surface of mould is less, and the particle size in the supporting course under it is bigger.

According to claim 5 or 6 described methods, it is characterized in that 8, the infiltration die surface of used mould is made up of particles with different sizes, the particle size on the profiled surface of mould is less, and the particle size in the supporting course under it is bigger.

9, method according to claim 6 is characterized in that, the adhesive of used mould is a heat curing-type.

10, method according to claim 6 is characterized in that, the adhesive of used mould contains adhesion promotor.

11, method according to claim 7 is characterized in that, the profile of the particle of used mould is circular.

12, method according to claim 6 is characterized in that, the particle of used mould is bonded to one another by wedging agent.

13, according to claim 5 or 6 described methods, it is characterized in that, composite particles in the sub-fraction in the used mould interconnects by the efficient melting compound, and the particle of these mould other parts then is cross-linked with each other together by curing adhesive.

14, method according to claim 4 is characterized in that, the Intensity Design of the die surface of used mould becomes to make this mould to can be used for the final pressure processing of object.

15, method according to claim 4, it is characterized in that, as fiber raw material, at least use part long fiber parent material, be processed into slurries, part is shaken out in pulper, part by previous separation, control dry grinding is arranged, make this parent material be divided into doses and be separated into fiber, described object is promptly created by the slurries of so making.

16, method according to claim 15 is characterized in that, described previous separation, has control dry grinding machining process to realize in the mode of the rapid technical process of multistep.

According to claim 15 or 16 described methods, it is characterized in that 17, the described machining process that shakes out as control is decided on separating the dry grinding effect.

18, according to claim 15 or 16 described methods, it is characterized in that, add in the slurries of in pulper, having made already by proportional quantity, and carry out the common processing of shaking out together in limited time through the long fiber parent material that separates, has the control dry grinding.

19, according to claim 15 or 16 described methods, it is characterized in that, the interpolation of auxiliary material with before separated dry grinding and getting in touch and carry out.

20, according to claim 15 or 16 described methods, it is characterized in that, carry out in the further process that is added on the slurries of making of auxiliary material.

According to claim 15 or 16 described methods, it is characterized in that 21, slurries are made by the described method of claim 15, and these slurries add in another Manufactured slurries by proportional quantity to, described object is promptly created by the mixture of so making.

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