Bent jigsaw for three-dimensional jigsaw

Abstract

A bent jigsaw for a three-dimensional jigsaw comprises a jigsaw main body, the jigsaw main body is made of wood materials, at least one cutting groove formed by laser cutting is formed in the jigsaw main body, the thickness of the jigsaw main body is d, the depth of the cutting groove is h, and the proportion of d to h is 0.2-0.8. Under the normal condition, the jointed board main body is in the shape of a plane plate, so that the jointed board main body is convenient to stack, box and transport, and the jointed board main body in the shape of the plane plate is not easy to break even if being collided in the transportation process; when the three-dimensional jigsaw is spliced, the two sides of the jigsaw main body are pulled by taking the cutting groove as a central axis, so that the jigsaw main body can be bent, and the proportion of d to h is 0.2-0.8, so that the tensile strength of the jigsaw main body at the cutting groove can be reduced, the toughness of the part can be ensured, and the jigsaw main body can be easily pulled to be bent but is not easy to break; therefore, according to the scheme, by changing the structure of the wood jointed board, the problems that an existing wood jointed board is prone to breakage in the bending process and the shape is fixed before splicing are solved, and the transportation convenience and the use experience are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of jigsaw puzzle, especially relates to a curved splicing plate for three-dimensional jigsaw puzzle. BACKGROUND

[0002] Three-dimensional jigsaw puzzle refers to a three-dimensional model formed by assembling and fitting various scattered splicing plate components in a specific combination mode, and is a DIY toy integrating entertainment, knowledge and appreciation. Most existing high-end three-dimensional jigsaw puzzles are assembled by using wooden splicing plates, which have good hand feeling and corrosion resistance, can improve overall texture and prolong the service life of the model.

[0003] Curved splicing plates are often used in three-dimensional jigsaw puzzles. However, since the tensile strength of wood is high and the splicing plate itself is thin, if the traditional steam bending method is used to heat wood to make a curved wooden splicing plate, it is very easy to break, and the shape of the prepared wooden splicing plate is fixed before assembly, which is not convenient for transportation and makes it impossible for users to manually bend the splicing plate, resulting in poor user experience. SUMMARY

[0004] Technical problem solved

[0005] The utility model provides a curved splicing plate for three-dimensional jigsaw puzzle, which solves the problems of easy breakage of wooden splicing plates during bending and shape fixation before assembly by changing the structure of the wooden splicing plate.

[0006] Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A curved splicing plate for three-dimensional jigsaw puzzle includes a splicing plate body made of wood material, and at least one cutting groove formed by laser cutting is provided on the splicing plate body. The thickness of the splicing plate body is d, the depth of the cutting groove is h, and the ratio of d to h is 0.2-0.8.

[0009] Preferably, the splicing plate body is made of plywood, which includes a first wood veneer layer, a second wood veneer layer and a wood core layer. The first wood veneer layer and the second wood veneer layer sandwich the wood core layer. The cutting groove cuts at least the first wood veneer layer or the second wood veneer layer.

[0010] Preferably, the ratio of the first wood veneer layer, the second wood veneer layer and the wood core layer is 1:2:1, and the ratio of d to h is 0.25-0.75.

[0011] Preferably, the cutting groove has a V-shaped cross section with an included angle α, and the included angle α is equal to the maximum angle of the splicing plate body bending towards the cutting groove.

[0012] Preferably, the included angle a is complementary to the maximum angle of the bending of the panel body towards the outside of the cutting groove.

[0013] Preferably, 0°≤a≤10°.

[0014] Preferably, a seam glue can be arranged in the cutting groove, which can bond the inner walls on both sides of the cutting groove or fill the cutting groove.

[0015] Preferably, a plurality of cutting grooves are arranged on the panel body and are cut by laser.

[0016] Preferably, the plurality of cutting grooves are arranged along the length direction of the panel body, and the spacing between every two cutting grooves is equal or unequal.

[0017] Preferably, the plurality of cutting grooves are equidistantly distributed on the panel body in a fan shape.

[0018] Preferably, the plurality of cutting grooves are arranged horizontally and vertically on the panel body and intersect with each other.

[0019] (Three) beneficial effects

[0020] The curved panel for three-dimensional jigsaw puzzle provided by the utility model has the advantages that the cutting groove is designed on the wooden panel body, the panel body can be bent in positive and negative directions with the cutting groove as the center, the ratio of the thickness of the panel body and the depth of the cutting groove is limited within 0.2-0.8, the tensile strength of the panel body at the cutting groove part can be effectively reduced, the toughness of the part is ensured, the panel body can be easily bent but not easily broken, on the other hand, the panel body is in the form of a flat panel when it is delivered, the panel body is convenient to stack and transport, and the panel body is not easily broken even if it is bumped during transportation, therefore, the structure of the wooden panel is changed, the problem that the existing wooden panel is easily broken during bending and the shape of the panel is fixed before assembly is solved, the transportation convenience and use experience are improved, the cutting groove does not penetrate the panel body, the formed wooden panel has a seamless smooth surface which can be used as the surface of a three-dimensional jigsaw puzzle model, and the overall appearance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model, and in the drawings:

[0022] Figure 1 The overall structure schematic view of the utility model is shown;

[0023] Figure 2 The enlarged view of A in the figure is shown; Figure 1

[0024] ​Figure 3 The use state of the utility model is shown Figure 1

[0025] Figure 4 The use state of the utility model is shown Figure 2

[0026] Figure 5 The use state of the utility model is shown Figure 3

[0027] Figure 6 The use state of the utility model is shown Figure 4

[0028] Figure 7 The use state of the utility model is shown Figure 5

[0029] In the figure: 1 spliced board main body, 10 cutting groove, 11 first veneer layer, 12 second veneer layer, 13 wood core layer. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Referring to the drawings Figure 1 - the drawings Figure 7 A curved spliced board for a three-dimensional jigsaw puzzle includes a spliced board main body 1, which is made of wood material, and at least one cutting groove 10 formed by laser cutting on the spliced board main body 1. The thickness of the spliced board main body 1 is d, the depth of the cutting groove 10 is h, and the ratio of d to h is 0.2-0.8.

[0032] Specifically, the spliced board main body 1 is in the form of a flat plate when it is produced and processed; when the three-dimensional jigsaw puzzle is assembled, the spliced board main body 1 is bent around the cutting groove 10 as the center axis and the two sides of the spliced board main body 1 are moved, so that the spliced board main body 1 is bent into a shape, and the formed wood spliced board can be assembled onto the three-dimensional jigsaw puzzle model.

[0033] ​​​​​In the process of bending the panel body 1, the user can choose to bend the panel body 1 towards the inside or outside of the cutting groove 10. If the panel body 1 is bent towards the inside of the cutting groove 10, the formed wooden panel is more stable under the limiting action of the mutual abutment of the two inner walls of the cutting groove 10. If the panel body 1 is bent towards the outside of the cutting groove 10, the formed wooden panel has a greater bending angle, so it can adapt to a stronger ability. Regardless of which bending method is used, since the cutting groove 10 does not completely penetrate the panel body 1, the formed wooden panel has a seamless smooth surface. The user uses the seamless smooth surface of the wooden panel as the outer surface of the three-dimensional jigsaw puzzle model, so that the overall appearance of the model is better.

[0034] In summary, the utility model discloses a cutting groove 10 is designed on the wooden panel body 1, so that the panel body 1 can be bent forward and backward with the cutting groove 10 as the center. If the ratio of the thickness of the panel body 1 and the depth of the cutting groove 10 is limited to 0.2-0.8, the tensile strength of the part of the panel body 1 at the cutting groove 10 can be effectively reduced, and the toughness of the part is ensured, so that the panel body 1 can be easily bent but not easily broken. On the other hand, the panel body 1 is in the form of a flat panel when it is shipped, which is convenient for stacking, packing and transporting. Even if it is bumped during transportation, it is not easy to break. Therefore, by changing the structure of the wooden panel, the utility model solves the problems of easy breaking during bending and fixed shape before assembly of the existing wooden panel, and improves the transportation convenience and user experience. Because the cutting groove 10 does not penetrate the panel body 1, the formed wooden panel has a seamless smooth surface that can be used as the surface of a three-dimensional jigsaw puzzle model, improving the overall appearance.

[0035] It should be noted that laser is used to process the cutting groove 10, which has the characteristics of high efficiency, high precision and high smoothness, and can effectively improve the processing precision of the plywood. If a small blade is used to process the cutting groove 10, or a chemical agent is used to etch the cutting groove 10, it is difficult to meet the actual processing requirements, and the finished product is difficult to meet the use standard.

[0036] Referring to the accompanying drawings Figure 1 - the accompanying drawings Figure 2 Wooden materials are diverse, and the utility model does not limit the comparison. In order to make the panel body 1 have better toughness and deformation ability, in this embodiment, the panel body 1 uses plywood, which includes a first wood skin layer 11, a second wood skin layer 12 and a wood core layer 13. The first wood skin layer 11 and the second wood skin layer 12 sandwich the wood core layer 13, and the cutting groove 10 at least cuts open the first wood skin layer 11 or the second wood skin layer 12.

[0037] Specifically, when the first veneer layer 11 is cut by the slot 10, the wood core layer 13 and the second veneer layer 12 are retained, at this time, the tensile strength and toughness of the panel body 1 are at the maximum value; similarly, when the first veneer layer 11 and the wood core layer 13 are cut by the slot 10, the second veneer layer 12 is retained, at this time, the tensile strength and toughness of the panel body 1 are at the minimum value; when the tensile strength and toughness of the panel body 1 are between the maximum value and the minimum value, the panel body 1 can be bent smoothly, and the possibility of fracture during bending is extremely small.

[0038] It should be noted that before the material and thickness of the panel body 1 are limited, the ratio of the thickness d of the panel body 1 to the depth h of the slot 10 is maintained within 0.2-0.8 to meet the bending requirement; if the panel body 1 is limited to use plywood, the manufacturer needs to select a plywood with a suitable ratio of the first veneer layer 11, the second veneer layer 12 and the wood core layer 13, and then adjust the depth h of the slot 10 according to the needs, to ensure that the slot 10 can still cut the first veneer layer 11 or the second veneer layer 12 to meet the use requirements on the premise that the ratio of the thickness d of the panel body 1 to the depth h of the slot 10 is maintained between 0.2-0.8.

[0039] Further, regarding the thickness ratio between the first veneer layer 11, the second veneer layer 12 and the wood core layer 13 of the plywood, the utility model does not limit this, for the convenience of understanding, the utility model takes a conventional plywood used for making wooden panels as an example, that is, the ratio of the first veneer layer 11, the second veneer layer 12 and the wood core layer 13 is 1:2:1, and the ratio of d to h is 0.25-0.75.

[0040] In this embodiment, for the convenience of understanding, the thickness of the preset veneer layer is 0.5mm, the thickness of the wood core layer 13 is 1mm, and according to the ratio of the thickness of the panel body 1 to the depth of the slot 10, it can be known that the depth of the slot 10 should be 0.5-1.5mm; when the depth of the slot 10 is 0.5mm, the first veneer layer 11 is cut, and the wood core layer 13 and the second veneer layer 12 are retained, at this time, the tensile strength and toughness of the panel body 1 are at the maximum value; similarly, when the depth of the slot 10 is 1.5mm, the first veneer layer 11 and the wood core layer 13 are cut, and the second veneer layer 12 is retained, at this time, the tensile strength and toughness of the panel body 1 are at the minimum value.

[0041] It should be noted that before the material and thickness of the panel body 1 are not limited, the ratio of the thickness d of the panel body 1 to the depth h of the groove 10 is maintained within 0.2-0.8 to meet the bending requirements, and the ratio of the panel body 1 to the first wood skin layer 11, the second wood skin layer 12 and the wood core layer 13 is limited to 1:2:1. The thickness d of the panel body 1 and the depth h of the groove 10 are kept within 0.25-0.75, which is most appropriate. However, considering that there is a certain error in the actual processing process, the ratio of the thickness d of the panel body 1 to the depth h of the groove 10 is maintained within 0.2-0.8, which also meets the processing requirements.

[0042] Referring to the accompanying drawings Figure 1 -attached Figure 2 When the laser processes the groove 10, the cross section of the groove 10 can be U-shaped, U-shaped, V-shaped, etc., or even irregular on the inner side wall. The utility model does not limit this; but in order to accurately control the bending angle of the panel body 1, the cross section of the groove 10 should be processed into a V-shaped groove 10 with an included angle α.

[0043] Specifically, when the panel body 1 located on both sides of the groove 10 is moved towards the inside of the groove 10, the included angle α gradually decreases, until the inner walls of the groove 10 on both sides abut against each other, and the panel body 1 is completely bent. Therefore, the included angle α is equal to the maximum angle of the panel body 1 bending towards the inside of the groove 10. Therefore, by cooperating with the inner walls on both sides of the groove 10, the bending angle of the panel body 1 can be accurately limited, and the bending precision of the formed wooden panel can be improved.

[0044] Referring to the accompanying drawings Figure 1 -attached Figure 2 The included angle α and the maximum angle of the panel body 1 bending towards the outside of the groove 10 are complementary. This design can not only expand the bending range of the panel body 1, but also avoid the panel body 1 from being bent too much and broken.

[0045] Referring to the accompanying drawings Figure 1 -attached Figure 2 0°≤α≤10°, this angle range is the conventional range that can be obtained by laser processing the groove 10, and it is difficult to process a similar angle groove 10 by other methods. In addition, when the ratio of the thickness d of the panel body 1 to the depth h of the groove 10 is 0.2-0.8, the angle α is kept within this range, and the possibility of breaking when bending the panel body 1 is minimized.

[0046] Referring to the accompanying drawings Figure 1 -attached Figure 2 A glue joint (not shown in the figure) can be provided in the groove 10, which can bond the inner walls on both sides of the groove 10 or fill the groove 10.

[0047] Specifically, when the parts of the panel body 1 located on both sides of the groove 10 are bent inwards towards the groove 10, the adhesive makes the inner walls of the two sides of the groove 10 bond together to strengthen the bent panel body 1 and prevent the panel body 1 from returning to its original position; when the parts of the panel body 1 located on both sides of the groove 10 are bent outwards towards the groove 10, the adhesive fills the enlarged groove 10, which firstly supports the groove 10 and bonds the inner walls of the two sides of the groove 10, so that the bent panel body 1 can stably maintain its current bending angle position, and secondly, it can prevent the inner surface of the panel body 1 from being pitted and uneven, thus increasing its aesthetics.

[0048] See appendix Figure 1 - Appendix Figure 7 Considering that assembling three-dimensional puzzles sometimes requires the use of wooden panels with a large bending angle, and due to the limitation of the included angle α of the groove 10, the actual bending angle of the panel body 1 is small and generally cannot exceed 90°, otherwise the panel body 1 will break directly at the part of the groove 10; in order to solve this problem, in this utility model, the panel body 1 is provided with multiple grooves 10 cut by laser cutting.

[0049] Specifically, by accumulating bending angles through closely arranged grooves 10, it is possible to obtain panel bodies 1 with larger bending angles and more diverse shapes without breaking the panel body 1. At the same time, the included angle α of each groove 10 can be adjusted to flexibly control the bending angle of the panel body 1 at different positions, which makes the curved surface transition smoothly and improves the bending accuracy.

[0050] The multiple grooves 10 can be arranged in various ways, and this utility model does not limit them. For ease of understanding, the following examples are given:

[0051] Firstly, multiple grooves 10 are arranged in an array along the length of the panel body 1, and the spacing between any two grooves 10 is equal. This design allows for the creation of semi-circular curved wooden panels with multiple bending angles, as detailed in the attached diagram. Figure 3 As shown.

[0052] Secondly, multiple grooves 10 are arranged in an array along the length of the panel body 1, and the spacing between any two grooves 10 is unequal. This design allows for the creation of irregularly curved wooden panels with multiple bending angles, as detailed in the attached diagram. Figure 4 As shown.

[0053] Thirdly, multiple grooves 10 are distributed equidistantly in a fan shape on the main body of the panel 1. With this design, a semi-conical wooden panel with multiple bending angles can be obtained, as shown in the attached figure. Figure 5 As shown.

[0054] Fourthly, the plurality of cutting grooves 10 are designed to be arranged horizontally and vertically on the panel body 1 and intersect with each other, so that the wood panel with the ends being raised and the middle being depressed can be obtained, as shown in the following figure. Figure 6

[0055] Fifthly, the plurality of cutting grooves 10 can also be arranged on the panel body 1 as shown in the following figure, so that the wood panel with the corresponding shape can be obtained. Figure 7

[0056] The solid line represents the panel body 1 and its edges, and the dotted line represents the cutting groove 10. Figures 3-7

[0057] Based on the above examples, it can be seen that the plurality of cutting grooves 10 can be arranged in different ways to obtain different shapes of the panel body 1, so as to meet the needs of various curved parts of the three-dimensional jigsaw puzzle. Compared with the traditional steam bending method, this structural design not only saves cost, but also has high bending precision.

[0058] It should be noted that the assembling structure between the two wood panels of the three-dimensional jigsaw puzzle can adopt a conventional clamping structure, an adhesive structure, a magnetic attraction structure, etc. Since the related assembling structure belongs to the prior art, it is relatively common in the field, and therefore will not be limited or described in detail here.

[0059] It should be further pointed out that although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application.​​​

Claims

1. A curved puzzle panel for a three-dimensional puzzle, comprising a panel body (1), characterized in that, The panel body (1) is made of wood material, and at least one cutting groove (10) is provided on the panel body (1) by laser cutting, the thickness of the panel body (1) is d, the depth of the cutting groove (10) is h, and the ratio of d to h is 0.2-0.

8.

2. A curved puzzle board for a three-dimensional puzzle according to claim 1, characterized in that The panel body (1) is made of plywood, the plywood includes a first veneer layer (11), a second veneer layer (12) and a wood core layer (13), the first veneer layer (11) and the second veneer layer (12) sandwich the wood core layer (13), and the cutting groove (10) cuts at least the first veneer layer (11) or the second veneer layer (12).

3. A curved puzzle board for a three-dimensional puzzle according to claim 2, wherein The ratio of the first veneer layer (11), the second veneer layer (12) and the wood core layer (13) is 1:2:1, and the ratio of d to h is 0.25-0.

75.

4. The curved puzzle board of claim 1, wherein, The cutting groove (10) has a V-shaped cross section and an included angle α, and the included angle α is equal to the maximum bending angle of the panel body (1) towards the cutting groove (10).

5. A curved puzzle board for a three-dimensional puzzle according to claim 4, wherein The included angle α is complementary to the maximum bending angle of the panel body (1) away from the cutting groove (10).

6. A curved puzzle board for a three-dimensional puzzle according to claim 5, wherein The cutting groove (10) can be provided with glue joints, which can bond the inner walls of the cutting groove (10) or fill the cutting groove (10).

7. The curved puzzle board of claim 1, wherein, The panel body (1) is provided with a plurality of cutting grooves (10) cut by laser.

8. A curved puzzle board for a three-dimensional puzzle according to claim 7, wherein The plurality of cutting grooves (10) are arrayed along the length direction of the panel body (1), and the spacing between every two cutting grooves (10) is equal or unequal.

9. The curved puzzle board of claim 7, wherein, The plurality of cutting grooves (10) are equally distributed on the panel body (1) in a fan shape.

10. The curved puzzle board of claim 7, wherein, The plurality of cutting grooves (10) are designed to be horizontally and vertically laid on the panel body (1) and intersect with each other.

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