Plane concave-convex honeycomb fiber mould pressing tray

Abstract

The utility model relates to a plane concave-convex honeycomb fiber mould pressing tray which comprises a mould pressing fiberboard body made of fiber materials through mould pressing, a plurality of forming pits are arranged on one surface of the mould pressing fiberboard body in the board thickness direction of the mould pressing fiberboard body, and the forming pits form a concave honeycomb structure. Forming protrusions protruding out of the other surface of the mold pressing fiberboard body are formed on the other surface of the mold pressing fiberboard body through the forming concave parts, the multiple forming protrusions form a protruding honeycomb structure, and the thickness of the wall formed by the forming protrusions and the forming concave parts is equal to the thickness of the mold pressing fiberboard body. The method has the advantages that the fiber material is pressed into the molded fiberboard body with the molded recesses and the molded protrusions through mold pressing, the problem that the structural strength of the molded fiberboard body is insufficient due to uneven density distribution of the board body is perfectly solved, and the molded fiberboard body is not prone to deformation or breakage in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of bamboo-wood molded pallets, in particular to a plane concave-convex honeycomb fiber molded pallet. Background Art

[0002] Compared with plastic pallets, bamboo-wood molded pallets have the advantages of environmental protection and low cost. Due to the strength requirements of the pallet, the existing bamboo-wood fiber pallets are thicker after molding, requiring more materials, resulting in higher costs. Secondly, in order to meet the strength requirements, the existing pallets are further formed with reinforcing ribs on the upper and / or lower surfaces of the pallets under the premise of being relatively thick. Although there are reinforcing ribs, the load-bearing performance and bending resistance of the pallets are still defective. For example, during demolding, the pallet has a large shrinkage stress, resulting in demolding deformation, which affects the final use of the pallet.

[0003] Patent CN117863654A discloses a planar honeycomb fiber molded support plate, which includes a fiber molded plate body made of fiber material by molding, and a plurality of upwardly recessed honeycomb blind holes are directly molded on the lower surface of the fiber molded plate body, and the honeycomb blind holes form a honeycomb structure.

[0004] In the above patent, the flat honeycomb fiber molded pallet is made by integrally molding a single fiberboard, and the honeycomb blind holes are compressed, so the density distribution of the board surface is uneven, which leads to uneven stress distribution inside the board, which may lead to insufficient structural strength and make the molded pallet easily deformed or broken when subjected to stress. Utility Model Content

[0005] The purpose of the utility model is to provide a flat concave-convex honeycomb fiber molded pallet that can solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A planar concave-convex honeycomb fiber molded pallet comprises a molded fiberboard body obtained by molding a fiber material, a plurality of molded depressions are provided on one surface of the molded fiberboard body in the thickness direction of the molded fiberboard body, and the plurality of molded depressions form a recessed honeycomb structure, and a molded protrusion protruding from the other surface of the molded fiberboard body is formed on the other surface of the molded fiberboard body by the molded depressions, and the plurality of molded protrusions form a raised honeycomb structure, and the wall thickness formed by the molded protrusions and the molded depressions is equal to the thickness of the molded fiberboard body.

[0008] Furthermore, the raised honeycomb structure covers at least 1 / 2 of the surface area of ​​the other surface of the molded fiberboard body.

[0009] Furthermore, there are a plurality of the molding recesses, and the molding protrusions correspond to the molding recesses one by one.

[0010] Furthermore, the molding recess is in any one or more combinations of elliptical, circular and polygonal structures.

[0011] Furthermore, the bottom surface of the molding depression is an arc-shaped concave surface, and the molding protrusion has an arc-shaped convex surface whose center coincides with the center of the arc-shaped concave surface.

[0012] Furthermore, the opening of the molding recess and the other surface of the molded fiberboard body are connected via an arc chamfered surface.

[0013] Furthermore, the arc-shaped concave surface and the circular arc chamfered surface are connected by a draft arc-shaped concave surface.

[0014] Furthermore, at least two adjacent molding depressions are distributed at intervals.

[0015] Furthermore, with any pair of half-bisectors of the molded fiberboard body as boundaries, 1 / 2 of the molding recesses provided on the molded fiberboard body and the remaining 1 / 2 of the molding recesses are symmetrically distributed about the half-bisectors.

[0016] Furthermore, a protrusion height of the molding protrusion protruding from the other surface of the molded fiberboard body is smaller than a board thickness of the molded fiberboard body.

[0017] Compared with the existing technology, the advantage of the present application is that the fiber material is simultaneously pressed through molding to form a molded fiberboard body having both molded depressions and molded protrusions, which perfectly solves the problem of insufficient structural strength of the molded fiberboard body caused by uneven density distribution of the board body, making the molded fiberboard body less likely to deform or break during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the main structure of the molded fiberboard body of the utility model;

[0019] Figure 2 for Figure 1 A detailed enlarged view of the structure of the A area;

[0020] Figure 3 This is a front view of the main structure of the molded fiberboard body of the utility model;

[0021] Figure 4 for Figure 3 The CC section line side view in;

[0022] Figure 5 for Figure 4 A magnified detail view of the structure of the B area;

[0023] Figure 6 This is a bottom view of the main structure of the molded fiberboard body of the utility model;

[0024] In the figure, the molded fiberboard body 1, the board thickness 1S, the molded depression 10, the arc-shaped concave surface 100, the arc chamfered surface 101, the draft arc-shaped concave surface 102, the molded protrusion 11, the wall thickness 11S, the arc-shaped convex surface 110, the bisector 12, and the reserved portion 13. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1

[0027] like Figure 1-2 As shown, the planar concave-convex honeycomb fiber molded pallet includes a molded fiberboard body 1 obtained by molding a fiber material, and in the board thickness direction of the molded fiberboard body 1, a plurality of molded depressions 10 are provided on one surface of the molded fiberboard body 1, and the plurality of molded depressions 10 form a recessed honeycomb structure, and on the other surface of the molded fiberboard body 1, molded protrusions 11 protruding from the other surface of the molded fiberboard body 1 are molded through the molded depressions 10, and the plurality of molded protrusions 11 form a raised honeycomb structure, and the wall thickness 11S formed by the molded protrusions 11 and the molded depressions 10 is equal to the board thickness 1S of the molded fiberboard body 1.

[0028] By providing a molded depression 10 on one surface of the molded fiberboard body 1 to form a concave-convex honeycomb structure, and a molded protrusion 11 on the other surface to form a convex honeycomb structure, the overall strength and stability of the molded fiberboard body can be increased. The molded concave-convex honeycomb structure effectively disperses the external force and improves the load capacity and pressure resistance of the pallet. The use of fiber materials through molding can achieve precise structural design, so that the pallet has the characteristics of light weight and high strength, while providing sufficient bearing capacity; the honeycomb structure design of the molded depression 10 and the molded protrusion 11 improves the stability and rigidity of the pallet, and the concave part and the convex part form a mutually supporting structure, which enhances the pressure resistance and vibration resistance, while ensuring the density uniformity of each part of the molded fiberboard body.

[0029] The wall thickness 11S formed by the molding protrusions 11 and the molding depressions 10 is equal to the board thickness 1S of the molded fiberboard body 1 , so that the density distribution of each part of the molded fiberboard body 1 is uniform, thereby improving the structural strength of the molded fiberboard body 1 .

[0030] The raised honeycomb structure covers at least 1 / 2 of the surface area of ​​the other surface of the molded fiberboard body 1 .

[0031] The large area coverage of the raised honeycomb structure can increase the rigidity and strength of the molded fiberboard body 1, making the pallet more durable and reliable.

[0032] like Figure 4-Figure 5 As shown, the wall thickness 11S of the entire fiberboard body during the molding process is consistent with the board thickness 1S, thereby improving the overall quality and stability of the product. In addition, maintaining consistent wall thickness can also ensure the structural strength and stability of the product, making the product more durable and more resistant to compression and bending.

[0033] There are a plurality of molding recesses 10 , and the molding protrusions 11 correspond to the molding recesses 10 one by one.

[0034] The molding depression 10 and the molding protrusion 11 are integrally formed, which can ensure the consistency of the strength (in the thickness direction) of the planar concave-convex honeycomb fiber molded tray.

[0035] The molding depression 10 is in any one or more combinations of oval, circular and polygonal structures.

[0036] In this embodiment, the molded depression 10 is a combination of a honeycomb hexagon and a special shape. The advantage of the honeycomb shape is that it has a higher structural strength and rigidity, can withstand a larger external load, and improves the impact resistance and load-bearing capacity of the product.

[0037] The bottom surface of the molding depression 10 is an arc-shaped concave surface 100 , and the molding protrusion 11 has an arc-shaped convex surface 110 whose center coincides with the center of the arc-shaped concave surface 100 .

[0038] The arcuate concave surface 100 is formed by the spherical convex surface, so that the honeycomb wall strength of two adjacent molded depressions 10 is further enhanced, and the thickness of the molded tray can be greatly reduced while maintaining the uniform density of the molded tray under the premise of using the same material as the conventional molded pallet and meeting the use strength. The simultaneous molding of a plurality of molded depressions 10 and molded protrusions 11 can ensure the consistency of the strength (thickness direction) of the planar concave-convex honeycomb fiber molded tray.

[0039] The opening of the molding recess 10 and the other surface of the molded fiberboard body 1 are connected via an arc chamfered surface 101 .

[0040] The design of the arc chamfered surface 101 can reduce stress concentration, alleviate the possibility of crack initiation, and improve the tensile shear resistance of the connection part.

[0041] The arc-shaped concave surface 100 and the circular arc chamfered surface 101 are connected by a draft arc-shaped concave surface 102 .

[0042] The draft arc concave surface 102 connection design can reduce stress concentration, disperse the applied force, reduce wear and damage of the stress-bearing parts, and extend the service life of the product; in addition, the design of the draft arc concave surface 102 can reduce sharp edges and corners, reduce the risk of injury, and improve the safety of the product.

[0043] At least two adjacent molding recesses 10 are spaced apart from each other.

[0044] When the forming depressions 10 are distributed at intervals, the load and stress applied to the pallet from the outside can be effectively dispersed, local stress concentration can be avoided, and the possibility of deformation and damage of the product can be reduced. This design can improve the overall force balance of the pallet, increase the bearing capacity and durability of the product, and extend the service life of the product.

[0045] Taking any pair of half-bisector lines 12 of the molded fiberboard body 1 as the boundary, the 1 / 2 molding recess 10 provided on the molded fiberboard body 1 and the remaining 1 / 2 molding recess 10 are symmetrically distributed about the half-bisector line 12 .

[0046] like Figure 3 As shown, in this embodiment, the molding recess 10 covers at least 1 / 2 of the surface area of ​​the molded fiberboard body 1, and the four corners of the molded fiberboard body 1 are also respectively provided with reserved portions 13.

[0047] The symmetrically distributed forming recesses 10 can make the force on the tray more balanced during use, and will not cause excessive force on some areas, thereby affecting the use effect.

[0048] The protrusion height of the molding protrusion 11 protruding from the other surface of the molded fiberboard body 1 is less than the board thickness of the molded fiberboard body 1.

[0049] The design of the forming protrusion 11 with a height less than the plate thickness 1S can ensure the overall flatness of the product, avoid uneven pressure distribution and deformation caused by the protrusion being too high, and reduce the possibility of deformation and breakage of the pallet during manufacturing or use. A forming protrusion 11 that is too high can easily cause stress concentration and structural instability, resulting in reduced product strength and increased fragility.

[0050] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A planar concave-convex honeycomb fiber molded pallet, comprising a molded fiberboard body (1) obtained by molding a fiber material, wherein a plurality of molded depressions (10) are provided on one surface of the molded fiberboard body (1) in the thickness direction of the molded fiberboard body (1), wherein the plurality of molded depressions (10) form a concave honeycomb structure, characterized in that: A molding protrusion (11) protruding from the other surface of the molded fiberboard body (1) is molded on the other surface of the molded fiberboard body (1) through the molding depression (10), and a plurality of the molding protrusions (11) form a protruding honeycomb structure. The wall thickness (11S) formed by the molding protrusions (11) and the molding depressions (10) is equal to the board thickness (1S) of the molded fiberboard body (1).

2. The flat concave-convex honeycomb fiber molded pallet according to claim 1, characterized in that: The raised honeycomb structure covers at least 1 / 2 of the surface area of ​​the other surface of the molded fiberboard body (1).

3. The flat concave-convex honeycomb fiber molded pallet according to claim 1 or 2, characterized in that: There are a plurality of the molding recesses (10), and the molding protrusions (11) correspond one to one with the molding recesses (10).

4. The flat concave-convex honeycomb fiber molded pallet according to claim 1 or 2, characterized in that: The molding recess (10) is in the form of any one or more combinations of elliptical, circular and polygonal structures.

5. The flat concave-convex honeycomb fiber molded pallet according to claim 1, characterized in that: The bottom surface of the molding depression (10) is an arc-shaped concave surface (100), and the molding protrusion (11) has an arc-shaped convex surface (110) whose center coincides with the center of the arc-shaped concave surface (100).

6. The flat concave-convex honeycomb fiber molded pallet according to claim 5, characterized in that: The opening of the molding recess (10) and the other surface of the molded fiberboard body (1) are connected via a circular arc chamfered surface (101).

7. The flat concave-convex honeycomb fiber molded pallet according to claim 6, characterized in that: The arc-shaped concave surface (100) and the circular arc chamfered surface (101) are connected via a draft arc-shaped concave surface (102).

8. The flat concave-convex honeycomb fiber molded pallet according to claim 1, characterized in that: At least two adjacent molding recesses (10) are distributed at intervals.

9. The flat concave-convex honeycomb fiber molded pallet according to claim 1, characterized in that: Taking any pair of half-bisectors (12) of the molded fiberboard body (1) as the boundary, 1 / 2 of the molding depression (10) provided on the molded fiberboard body (1) and the remaining 1 / 2 of the molding depression (10) are symmetrically distributed along the half-bisectors (12).

10. The flat concave-convex honeycomb fiber molded pallet according to claim 1, characterized in that: The protrusion height of the molding protrusion (11) protruding from the other surface of the molded fiberboard body (1) is less than the board thickness of the molded fiberboard body (1).

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