阅读说明：本技术 一种弯曲硬质板材及弯曲加工方法 (Bent hard plate and bending processing method ) 是由 郝鑫 刘建伟 于 2021-07-07 设计创作，主要内容包括：本发明涉及一种弯曲硬质板材及其弯曲加工方法,弯曲硬质板材,包括一板材,板材具有第一端、第二端、以及连接于第一端与第二端之间的弯曲部；弯曲部围绕一轴或一顶点弯曲为弧形,弯曲部上设置有多个细条缝,多个细条缝以顶点为中心延伸并排列为辐射状,或多个细条缝与轴平行延伸并排列为阵列状。加工方法包括步骤S1：提供一平直的板材,在板材上确定需弯曲的平直过渡区域；S2：根据需弯曲要求确定弯曲轴点或弯曲轴线,以弯曲轴点在平直过渡区域内加工辐射状细条缝,或以弯曲轴线在平直过渡区域内加工阵列状细条缝；S3：将加工后的平直过渡区域弯曲至目标弯曲弧度。本发明能够实现弯曲并且弯曲的方式多样化。(The invention relates to a bending hard plate and a bending processing method thereof, wherein the bending hard plate comprises a plate, a first end, a second end and a bending part connected between the first end and the second end; the bending part is bent into an arc shape around an axis or a vertex, a plurality of thin slits are arranged on the bending part, extend by taking the vertex as a center and are arranged in a radial shape, or a plurality of thin slits extend parallel to the axis and are arranged in an array shape. The processing method comprises the step S1: providing a straight plate, and determining a straight transition area needing to be bent on the plate; s2: determining a bending shaft point or a bending axis according to the bending requirement, processing radial strip slits in a straight transition region by using the bending shaft point, or processing array-shaped strip slits in the straight transition region by using the bending axis; s3: and bending the machined straight transition area to a target bending radian. The invention can realize bending and diversified bending modes.)

1. A bent hard plate, characterized by comprising a plate having a first end (1), a second end (2), and a bend (3) connected between the first end (1) and the second end (2);

the bending part (3) is bent into an arc shape around an axis or a vertex, a plurality of thin slits (4) are arranged on the bending part (3), the thin slits (4) extend by taking the vertex as a center and are arranged in a radial shape, or the thin slits (4) extend in parallel with the axis and are arranged in an array shape.

2. A bent hard plate according to claim 1, wherein the bent portion (3) is one of a square, a parallelogram, a trapezoid or a sector.

3. A bent hard board according to claim 1, characterized in that the width of the strip slit (4) is not less than half the thickness of the board.

4. A bent hard plate according to claim 3, characterized in that said slits (4) are straight slits extending in parallel with said axis or intersecting at said apex along a line of extension of said slits.

5. A bent hard board according to claim 3, wherein said strip seams (4) are corrugated seams, each of said corrugated seams being provided with at least one peak (5) and at least one valley (6) along its length, said peaks (5) of adjacent corrugated seams being oriented in the same direction and said valleys (6) of adjacent corrugated seams being oriented in the same direction.

6. A bending processing method of a hard plate is characterized by comprising the following steps:

s1: providing a straight plate, and determining a straight transition area needing to be bent on the plate;

s2: determining a bending shaft point or a bending axis according to the requirement of bending, processing radial slender slits in the straight transition region by using the bending shaft point, or processing array-shaped slender slits in the straight transition region by using the bending axis;

s3: and bending the machined straight transition section to a target bending radian.

7. The method according to claim 1, wherein the material of the plate is wood.

8. The method for bending a hard plate according to claim 1, wherein the thin slits are cut by a laser cutter in step S2.

Technical Field

The invention relates to the technical field of plate bending, in particular to a bent hard plate and a bending processing method.

Background

The bending of the plate refers to bending the straight plate to form a certain included angle after a series of processing. However, when a hard plate is bent, the hard plate is easily broken due to the rigidity of the material, and particularly when a wooden plate is directly bent, cracks are easily generated at the bent position, and the hard plate cannot be bent to a target angle.

At present, the bending modes of the wood plate are mainly as follows: 1. splicing one by one: the curved surface is divided into milling sections, and a curved surface model is formed by adopting an adhesion or riveting mode, so that the processing technology is complex, and the assembly difficulty is high; 2. splicing the tenon and mortise; 3. integrally cutting into a bent shape; 4. and (4) thermally bending. Therefore, the integral difficulty is high when the hard wood board is bent, the bending angle needs to be determined before the hard wood board is machined, and the difference of target bending after actual machining is large.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a bent hard sheet having a simple structure and a bending method for processing the bent hard sheet.

The technical scheme for solving the technical problems is as follows:

the present invention provides a bent hard plate material, which comprises a plate material having a first end, a second end, and a bent portion connected between the first end and the second end;

the bending part is bent into an arc shape around an axis or a vertex, a plurality of thin slits are arranged on the bending part, extend by taking the vertex as a center and are arranged in a radial shape, or extend in parallel with the axis and are arranged in an array shape.

The invention has the beneficial effects that: the invention is provided with the strip slits on the bending part, the strip slits are in a radial shape or an array shape, the bending and the bending modes can be diversified, and the existence of the strip slits can reduce the whole weight of the bent plate.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the curved portion is one of a square, a parallelogram, a trapezoid, or a fan.

The beneficial effect of adopting the further scheme is that: the bending portion has various structures and can be bent according to different bending forms.

Further, the slit width of the thin slit is not less than one half of the thickness of the plate.

The beneficial effect of adopting the further scheme is that: by adopting the strip seam, the phenomenon that the sheet materials at two ends of the strip seam have stretching effect and generate cracks due to the deformation of the strip seam in the bending process can be avoided.

Further, the thin slit is a straight slit extending in parallel with the axis, or an extension line of the straight slit intersects the vertex.

The beneficial effect of adopting the further scheme is that: the straight seam has good deformation resistance and stability, can release the stress action of the inner side during the bending process, and can effectively reduce the generation of cracks on the surface of the bending part on the side deviating from the bending direction during the bending process.

Further, the thin strip seam is a corrugated seam, each corrugated seam is provided with at least one peak and at least one valley along the length direction, the direction of the peaks of the adjacent corrugated seams is the same, and the direction of the valleys of the adjacent corrugated seams is the same.

The beneficial effect of adopting the further scheme is that: the anti-deformation stability effect after the wave-shaped seam is adopted for bending is better.

The present invention provides a method for bending a hard plate, which comprises the following steps:

s1: providing a straight plate, and determining a straight transition area needing to be bent on the plate;

s2: determining a bending shaft point or a bending axis according to the requirement of bending, processing radial slender slits in the straight transition region by using the bending shaft point, or processing array-shaped slender slits in the straight transition region by using the bending axis;

s3: and bending the machined straight transition region to a target bending radian.

The invention has the beneficial effects that: the method can realize the bending of the hard plate, has simple processing and wide application range, can adjust the processing area in real time according to the bending requirement, and is flexible and convenient.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the material of the board is wood.

The beneficial effect of adopting the further scheme is that: the wood is lighter and can be bent after processing.

Further, the thin slit is cut by a laser cutting machine in step S2.

The beneficial effect of adopting the further scheme is that: adopt laser cutting machine to cut convenient and fast.

Drawings

FIG. 1 is a schematic structural view of a curved rigid panel according to a preferred embodiment of the present invention;

fig. 2 is a block diagram showing a flow of a method for bending a hard sheet according to a preferred embodiment of the present invention.

In fig. 1, the list of components represented by the various reference numbers is as follows:

1. a first end; 2. a second end; 3. a bending section; 4. fine strip seams; 5. wave crest; 6. a wave trough.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1, the present embodiment provides a bent hard plate, which includes a plate having a first end 1, a second end 2, and a bent portion 3 connected between the first end 1 and the second end 2;

the bending part 3 is bent into an arc shape around an axis or a vertex, a plurality of thin slits 4 are arranged on the bending part 3, the thin slits 4 extend by taking the vertex as a center and are arranged in a radial shape, or the thin slits 4 extend parallel to the axis and are arranged in an array shape.

It should be noted that the bending portion 3 is curved around the apex into an arc shape as a truncated cone apex of the truncated cone arc-shaped side wall of the bending portion 3, and the bending portion 3 is curved around the axis into an arc shape as a central axis of the cylindrical arc-shaped side wall of the bending portion 3.

Preferably, the bending portion 3 is one of a square shape, a parallelogram shape, a trapezoid shape or a fan shape, in this embodiment, the bending portion 3 is a square shape, it should be noted that, when the bending portion 3 is bent in an arc shape, the first end 1 and the second end 2 are relatively bent, and the radian of the bending portion 3 is the same along the central axis, one side of the square bending portion 3 is integrally connected with the first end 1, and the other side is integrally connected with the second end 2.

Preferably, the width of the strip 4 is not less than one half of the thickness of the plate, and it should be noted that the width of the strip, the number of the strip and the gap distance can be adaptively adjusted according to the bending angle, such as 30 °, 60 °, 90 °, 120 °, 150 ° and 180 °.

Preferably, the slit 4 is a straight slit extending parallel to the axis or intersecting at an apex along a line extending from the straight slit.

Preferably, the slit 4 is a corrugated slit, each of the corrugated slits has at least one peak 5 and at least one valley 6 along the length direction, the peaks 5 of adjacent corrugated slits are in the same orientation, the valleys 6 of adjacent corrugated slits are in the same orientation, it should be noted that the corrugated slits extend in a radial line corrugation at the vertex or in a parallel corrugation along the axis, the peaks 5 and the valleys 6 are in opposite orientations, it is understood that the peaks 5 are disposed at one side of the extending axis of the whole of the corrugated slits, the valleys 6 are disposed at the other side of the extending axis of the corrugated slits, and the peaks 5 and the valleys 6 of the plurality of slit 4 are respectively configured to be connected between the first end 1 and the second end 2.

Example 2

As shown in fig. 2, the present embodiment provides a bending method for a hard plate, including the following steps:

s1: providing a straight plate, and determining a straight transition area needing to be bent on the plate;

s2: determining a bending shaft point or a bending axis according to the bending requirement, processing radial strip slits in a straight transition area by using the bending shaft point, or processing array-shaped strip slits in the straight transition area by using the bending axis;

s3: and bending the machined straight transition section to a target bending radian.

It should be noted that, in order to maintain the bending state after processing, fillers can be injected into the thin strip seams, and the surfaces of the curved arc inner side surface and the curved arc outer side surface are polished to be flat, so that the stable state of the hard plate after bending can be ensured, and the bending deformation caused by the fact that the first end or the second end of the plate is not fixed under the bending recovery effect can be avoided; of course, when the curved plate is used for a wooden toy or the like requiring weight reduction, the thin slits may be filled with filler, and only the first end and the second end need to be fixed after bending, so that the curved state can be maintained.

Preferably, the material of the plate is wood.

Preferably, the slits are cut by a laser cutter in step S2, and the laser cutter cuts the slits in a radial path of a bending axis point or in an array path of a bending axis.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.