CN107264925A - A kind of heavily loaded fibre mould pallet - Google Patents
A kind of heavily loaded fibre mould pallet Download PDFInfo
- Publication number
- CN107264925A CN107264925A CN201710523802.4A CN201710523802A CN107264925A CN 107264925 A CN107264925 A CN 107264925A CN 201710523802 A CN201710523802 A CN 201710523802A CN 107264925 A CN107264925 A CN 107264925A
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- CN
- China
- Prior art keywords
- panel
- shrinkage pool
- supporting leg
- heavily loaded
- fibre mould
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
-
- 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
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/38—Details or accessories
- B65D19/40—Elements for spacing platforms from supporting surface
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00034—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00049—Materials for the base surface
- B65D2519/00069—Plastic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pallets (AREA)
Abstract
A kind of heavily loaded fibre mould pallet, belongs to fibre mould product molding arts.The present invention technical characterstic be：Including panel, the upper surface of the panel is plane；The lower surface of panel has a frame, is set in frame and array is gone back in cross-bar, frame has nine supporting legs, is equidistantly placed with panel shrinkage pool in four regions that the lower surface of panel is divided by cross-bar, branch inboard leg is provided with supporting leg shrinkage pool.Using the structure type of 9 supporting legs, two-way beneficial to pallet enters to pitch operation；Panel all employs the downward structure of shrinkage pool with supporting leg, beneficial to the one-shot forming of panel punch-pin and the work compound and integrated pallet of supporting leg punch-pin；The massive plate slab construction of panel upper surface, beneficial to loading and the protection to carrying product.
Description
Technical field
The present invention relates to a kind of moulding trays, and in particular to a kind of heavily loaded fibre mould pallet, belongs to fibre mould product
Molding arts.
Background technology
Heavily loaded fibre mould pallet is a kind of important feature form of moulding trays, its advantage is that raw material is cheap, source is wide,
Renewable, technique is simple, and intensity is high, small volume, and discarded object is recyclable and natural degradation, can be substituted for conventional wood pallets etc.,
Applied to large-scale, heavy loading machinery equipment and assembly package.Because deflection is big in fibre mould forming process, it is difficult to be molded compared with
Highdensity complicated thick-walled structure, causing current fibre mould pallet to present, volume is big, carries low defect.Therefore it is of the invention
A kind of heavily loaded fibre mould pallet is proposed based on this phenomenon.
The content of the invention
The brief overview on the present invention is given below, to provide on the basic of certain aspects of the invention
Understand.It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine the pass of the present invention
Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form,
In this, as the preamble in greater detail discussed later.
In consideration of it, in order to overcome because deflection is big in fibre mould forming process, it is difficult to be molded the complexity of higher density
Thick-walled structure, causes current fibre mould pallet that volume is presented greatly, the problem of carrying low, and then there is provided a kind of heavily loaded fiber
Moulding trays, to reach reduction pallet wall thickness, adapt to large deformation moulding technology, are easy to integrally formed heavy-duty tray requirement.
The invention provides a kind of heavily loaded fibre mould pallet, including panel, the upper surface of the panel is plane；Panel
Lower surface there is frame, set in frame and go back array in cross-bar, frame and have nine supporting legs, the lower surface of panel is by cross
Panel shrinkage pool equidistantly is placed with four regions that ellbeam is divided, branch inboard leg is provided with supporting leg shrinkage pool.
Further：The upper surface of the panel is smooth plane.
Further：The panel shrinkage pool of the panel underside view of part is shaped as single form or mixing spread pattern.
Further：The panel shrinkage pool be shaped as equilateral triangle, parallelogram, rectangle, regular hexagon, it is circular in
One or several kinds.
Further：Each face has each on the inside of certain panel shrinkage pool drafting angle, panel shrinkage pool on the inside of the panel shrinkage pool
Face junction is equipped with panel shrinkage pool chamfering.
Further：Each face of supporting leg shrinkage pool has certain supporting leg shrinkage pool drafting angle, each face junction of supporting leg shrinkage pool
It is equipped with supporting leg shrinkage pool chamfering.
Further：Each face of branch leg outer side has to be connected between certain branch leg outer side drafting angle, each face of branch leg outer side
Place has branch leg outer side chamfering.
Beneficial effect：
1. employ the support holder structure form of nine supporting legs, save supporting construction unit materials, beneficial to pallet it is two-way enter
Pitch operation.
2. panel and supporting leg all employ the downward structure of shrinkage pool, beneficial to intensive utilization of the material under higher density, face
The one-shot forming of the work compound and integrated pallet of plate punch-pin and supporting leg punch-pin.
3. the massive plate slab construction of panel upper surface, beneficial to loading and the protection to carrying product.
4. integrated pallet is simple in construction, it is easy to which moulding technology is realized, beneficial to the high-strength carrying for realizing material and structure.It is overall
The structure design of pallet is beneficial to realize the regulation and control completed by moulding technology to load-carrying properties.
Brief description of the drawings
Fig. 1 is the schematic diagram that overall structure of the present invention forward direction is placed.
Fig. 2 is the integrally-built oppositely positioned schematic diagram of the present invention.
Fig. 3 is the floor map of panel shrinkage pool shape of the present invention.
Fig. 4 is the schematic diagram of panel shrinkage pool structure of the present invention.
Fig. 5 is the schematic diagram of leg structure of the present invention.
Fig. 6 is the stress-strain curve of fibre mould material.
Fig. 7 is the maximum stress and displacement diagram of different shaped jet holes panel.
Fig. 8 is the changing trend diagram of stress and displacement and different factors.
Fig. 9 is integrated pallet Stress Map.
Figure 10 is integrated pallet displacement cloud atlas.
Marked in figure as follows：
1. the panel of plane 2.
3. the panel shrinkage pool of supporting leg 4.
5. the side bar of cross-bar 6.
7. the equilateral triangle of supporting leg shrinkage pool 8.
9. the regular hexagon of parallelogram 10.
11. circular 12. rectangle
13. the panel shrinkage pool withdrawing pattern of panel shrinkage pool chamfering 14.
15. the supporting leg shrinkage pool chamfering of supporting leg shrinkage pool withdrawing pattern 16.
17. 18. leg outer side chamferings of a leg outer side withdrawing pattern.
Embodiment
The one exemplary embodiment of the present invention is described hereinafter in connection with accompanying drawing.For clarity and conciseness,
All features of actual embodiment are not described in the description.It should be understood, however, that developing any this actual implementation
Many decisions specific to embodiment must be made during example, to realize the objectives of developer, for example, symbol
Those restrictive conditions related to system and business are closed, and these restrictive conditions may have with the difference of embodiment
Changed.In addition, it also should be appreciated that, although development is likely to be extremely complex and time-consuming, but to having benefited from the present invention
For those skilled in the art of disclosure, this development is only routine task.
Herein, in addition it is also necessary to which explanation is a bit, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings
It illustrate only and according to the closely related apparatus structure of the solution of the present invention and/or process step, and eliminate and the present invention
The little other details of relation.
Embodiments of the present invention provide a kind of heavily loaded fibre mould pallet, including panel 2, the face as shown in drawings
The upper surface of plate 2 is plane 1；The lower surface of panel 2, which has to set in cross-bar 5, frame 6 in frame 6, frame 6, goes back array
There are nine supporting legs 3, equidistantly panel shrinkage pool 4, supporting leg 3 are placed with four regions that the lower surface of panel 2 is divided by cross-bar 5
Inner side is provided with supporting leg shrinkage pool 7.
More specifically：The upper surface of the panel 2 is smooth plane 1.
More specifically：The panel shrinkage pool 4 of the underside view of part of panel 2 is shaped as single form or mixing spread pattern.
More specifically：The panel shrinkage pool 4 is shaped as equilateral triangle 8, parallelogram 9, rectangle 12, regular hexagon
10th, the one or several kinds in circle 11.
More specifically：Each face in the inner side of panel shrinkage pool 4 has in certain angle of panel shrinkage pool withdrawing pattern 14, panel shrinkage pool 4
Side Ge Mian junctions are equipped with panel shrinkage pool chamfering 13.
More specifically：Each face of the supporting leg shrinkage pool 7 has certain angle of supporting leg shrinkage pool withdrawing pattern 15, and each face of supporting leg shrinkage pool 7 connects
The place of connecing is equipped with supporting leg shrinkage pool chamfering 16.
More specifically：Each face in the outside of supporting leg 3 has between certain angle of branch leg outer side withdrawing pattern 17, each face in the outside of supporting leg 3
Junction has branch leg outer side chamfering 18.
The measure of material property of the present invention：The heavily loaded fibre mould material prepared using experiment, according to《Film and thin slice are drawn
Stretch the measure of performance》(GB/T 1040.3-200) with《The determination method of corrugated board side pressure strength》(GBT 6546-1998) is carried out
Experiment, obtains the stress-strain curves and modulus of elasticity of material.It is modeled and performance simulation by software Pro/E and ANSYS
Analysis, is designed using orthogonal test method and optimizes support holder structure.
Embodiment 1：The selection of the pass of panel shrinkage pool 4
Panel lower surface takes equilateral triangle, parallelogram, rectangle, regular hexagon and circular 5 kinds of panel shrinkage pools 4 respectively
Form, to make the pallet of 5 kinds of structures of different panels shrinkage pool 4 of panel lower surface have comparativity, quantity of being arranged on panel is
24 × 20 panel shrinkage pool 4, and control panel volume is identical.The width of beam is equal everywhere (in addition to circular hole) between face, to protect
Demonstrate,proving panel beams being capable of uniform stressed.
Geometrical model is set up in ProE, then imported into progress static structure sunykatuib analysis in ANSYS softwares.With waste paperboard
The heavily loaded fibre mould material made from raw material, modulus of elasticity is 3 415.3MPa, and Poisson's ratio takes 0.1.Using many in ANSYS
The multistage linear line segment combination of the linear plasticity model of section, approximate representation fibre mould material elastic viscoplastiy model is equidistant to Fig. 6
6 data are taken, 1 is shown in Table.
The fibre mould material stress of table 1-strain data
In ANSYS, solid185 cell types are selected, are divided using smart grid.According in pallet load bearing process
Constraint (constraint 6 is fixed in actual conditions, counter plate upper surface imposed load 0.001MPa surface pressures, pallet supporting leg bottom surface
The free degree in direction), the maximum stress and displacement diagram of variously-shaped face pallet are obtained, Fig. 7 is seen.
The bending strength and bending rigidity of pallet are all to determine the main table whether pallet carrying fails, when support holder structure
Maximum stress is smaller with maximum displacement, illustrates that its bending strength and bending rigidity are higher.As shown in Figure 7, panel pass is positive six
The pallet maximum stress of side shape is minimum, and maximum displacement is smaller, i.e., bearing capacity is most strong.
Embodiment 2：The optimization of panel shrinkage pool construction unit size
The panel of different shaped jet holes, when bearing equal load, maximum stress point is both present in the top of panel shrinkage pool 4, according to material
Expect theory of mechanics, mainly Moment causes the top of panel shrinkage pool 4 maximum stress occur, and then causes panel damage.Therefore,
By taking the panel shrinkage pool unit of Fig. 4 regular hexagons as an example, 6 faces on the outside of counter plate shrinkage pool unit apply reverse surface pressure, bottom surface
It is fixed, the moment of flexure for forming linear distribution on each face is carried out sunykatuib analysis.It is deep that panel shrinkage pool unit size mainly includes face
Degree, wall thickness, drafting angle and rounding radii.According to preliminary experiment, each factor takes 3 levels, carries out orthogonal test and is shown in Table 2.
The orthogonal test scheme of table 2 and interpretation of result
Each factor and stress and the variation relation trend of displacement, referring to Fig. 8.As shown in Figure 8, maximum stress and displacement with
Face depth, drafting angle increase and increased, and increase with wall thickness and reduce, the first increases and then decreases with chamfer radius increase.Root
According to extreme difference size in table 2, determine that each factor is to stress and the influence primary and secondary of displacement order：Wall thickness>Drafting angle>Chamfer radius
>Face depth.Consider that the face optimized dimensions of selection are combined as H from influence primary and secondary order and saving raw material angle1T3α1R3, this
The cellular construction of assembled dimension is not included in orthogonal test, additional this element structural test, and it is 0.141724 to obtain maximum stress,
Maximum strain is 0.000691, respectively less than stress and strain in orthogonal test.So, regular hexagon face unit size it is final
Optimum organization is H1T3α1R3, i.e. face depth 22mm, wall thickness 6mm, 2 ° of drafting angle, chamfer radius 6mm.
Embodiment 3：The optimization of leg structure unit size
In ANSYS softwares, 0.0001MPa surface pressures are applied to Fig. 5 leg structure unit upper surface, supporting leg bottom is consolidated
It is fixed, carry out sunykatuib analysis.Leg structure unit size mainly includes thickness, drafting angle, rounding radii.According to preliminary experiment,
Each factor takes 3 levels, carries out orthogonal test, is shown in Table 3.
The orthogonal test scheme of table 3 and interpretation of result
Table 4 is the variance analysis of leg structure unit orthogonal experiments.
The analysis of variance table of table 4
From the results of analysis of variance of table 4, drafting angle influences highly significant on maximum stress, and thickness and rounding are partly
Footpath influence is not notable.Influence maximum stress primary and secondary order be：Drafting angle>Thickness>Rounding radii.Similarly obtain each factor
Influence to maximum displacement is also consistent with stress.Maximum stress is the smaller the better with displacement, therefore selection t3β1r2Combination, due to this group
Conjunction is not included in above-mentioned experiment, additional its test maximum stress is 0.000173MPa, maximum strain is 0.357E-5.Hair
Existing, its maximum stress is more than t with strain3β1r3Combination.So, the final optimization pass of leg structure unit size is combined as t3β1r3,
That is 2 ° of drafting angle, thickness 25mm, chamfer radius 15mm.
Embodiment 4：The overall construction design of pallet and sunykatuib analysis
According to the optimization to pallet pass, size and supporting leg unit, the hexagonal surfaces plate hole type and unit of optimization are selected
Dimension combination, carries out overall construction design, and set up pallet model.According to the definition of heavily loaded fibre mould pallet, its volume is determined
Dead load is determined for 6t.In use, because each component strength exceedes material limits intensity, product is caused to destroy.Therefore, originally
Text is using heavily loaded fibre mould material limits intensity as finite element analysis boundary condition, when material reaches capacity intensity, it is believed that
Structural failure.Apply 0.049MPa (i.e. 6t) uniform surface load lotus to tray surface, constraint (constraint 6 is fixed in tray bottom surface
The free degree in individual direction), carry out static load simulated test.
According to Fig. 9, Figure 10 static stress analysis result, the maximum suffered by heavily loaded fibre mould pallet reality can be obtained
Stress is 41.86MPa, and its value is less than the ultimate strength 48.64MPa of heavily loaded fibre mould material, but more than yield strength
38.63MPa, thus its structural strength is also plastically deformed while reaching that heavy duty is required.Heavily loaded fibre mould pallet
Stress and displacement cloud atlas, see Fig. 6 and Fig. 7.4 partial dislocation deflections that panel does not have supporting leg to support are larger, maximum displacement
For 1.39mm.Face beam and the raw stress concentration of leg connection distribution, belong to damageable zone.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention
Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not
On the premise of departing from disclosed core technology scheme, any modification can be made in the form and details of implementation with becoming
Change, but the protection domain that the present invention is limited, the scope that must be still limited by appended claims are defined.
Claims (7)
1. a kind of heavily loaded fibre mould pallet, it is characterised in that：Including panel (2), the upper surface of the panel (2) is plane
(1)；The lower surface of panel (2) has a frame (6), is set in frame (6) and goes back array in cross-bar (5), frame (6) and have nine
Panel shrinkage pool (4) equidistantly is placed with supporting leg (3), four regions that the lower surface of panel (2) is divided by cross-bar (5), is propped up
Supporting leg shrinkage pool (7) is provided with the inside of leg (3).
2. a kind of heavily loaded fibre mould pallet according to claim 1, it is characterised in that：The upper surface of the panel (2)
For smooth plane (1).
3. a kind of heavily loaded fibre mould pallet according to claim 1 or 2, it is characterised in that：Panel (2) lower surface
The panel shrinkage pool (4) of arrangement is shaped as single form or mixing spread pattern.
4. a kind of heavily loaded fibre mould pallet according to claim 3, it is characterised in that：The shape of the panel shrinkage pool (4)
Shape is the one or several kinds in equilateral triangle (8), parallelogram (9), rectangle (12), regular hexagon (10), circular (11).
5. a kind of heavily loaded fibre mould pallet according to claim 4, it is characterised in that：On the inside of the panel shrinkage pool (4)
There is each face junction on the inside of certain panel shrinkage pool withdrawing pattern (14) angle, panel shrinkage pool (4) to be equipped with panel shrinkage pool chamfering in each face
(13)。
6. a kind of heavily loaded fibre mould pallet according to claim 5, it is characterised in that：Each face of the supporting leg shrinkage pool (7)
With certain supporting leg shrinkage pool withdrawing pattern (15) angle, each face junction of supporting leg shrinkage pool (7) is equipped with supporting leg shrinkage pool chamfering (16).
7. a kind of heavily loaded fibre mould pallet according to claim 6, it is characterised in that：Each face on the outside of the supporting leg (3)
With certain branch leg outer side withdrawing pattern (17) angle, junction has branch leg outer side chamfering (18) between each face on the outside of supporting leg (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523802.4A CN107264925B (en) | 2017-06-30 | 2017-06-30 | A kind of heavy duty fibre mould pallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523802.4A CN107264925B (en) | 2017-06-30 | 2017-06-30 | A kind of heavy duty fibre mould pallet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107264925A true CN107264925A (en) | 2017-10-20 |
| CN107264925B CN107264925B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710523802.4A Expired - Fee Related CN107264925B (en) | 2017-06-30 | 2017-06-30 | A kind of heavy duty fibre mould pallet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893520A (en) * | 2021-01-12 | 2021-06-04 | 燕山大学 | Wood platform structure optimization method based on tinned plate package |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170940A (en) * | 2001-12-07 | 2003-06-17 | Gifu Plast Ind Co Ltd | Synthetic resin pallet |
| CN202574800U (en) * | 2012-05-07 | 2012-12-05 | 山东力扬塑业有限公司 | Nine-foot grid pallet with water leakage holes |
| CN105197346A (en) * | 2015-09-23 | 2015-12-30 | 山东力扬塑业有限公司 | Flue-cured tobacco lamina tray and process method thereof |
-
2017
- 2017-06-30 CN CN201710523802.4A patent/CN107264925B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170940A (en) * | 2001-12-07 | 2003-06-17 | Gifu Plast Ind Co Ltd | Synthetic resin pallet |
| CN202574800U (en) * | 2012-05-07 | 2012-12-05 | 山东力扬塑业有限公司 | Nine-foot grid pallet with water leakage holes |
| CN105197346A (en) * | 2015-09-23 | 2015-12-30 | 山东力扬塑业有限公司 | Flue-cured tobacco lamina tray and process method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893520A (en) * | 2021-01-12 | 2021-06-04 | 燕山大学 | Wood platform structure optimization method based on tinned plate package |
| CN112893520B (en) * | 2021-01-12 | 2022-03-11 | 燕山大学 | Wood platform structure optimization method based on tinned plate package |
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| Publication number | Publication date |
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| CN107264925B (en) | 2019-06-04 |
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