Metal product and manufacturing method thereof, forming and cutting die

Abstract

The embodiment of the present invention discloses a metal product and its manufacturing method and a forming and cutting die. The metal product includes: a metal body, the metal body is divided into a plurality of sub-metal blocks, and the plurality of sub-metal blocks are arranged in an array; adjacent sub-metal blocks are connected, and a dividing groove is formed at the connection between adjacent sub-metal blocks, and the dividing groove is provided with a sharp angle and a calibrated shape; the plurality of sub-metal blocks are in at least two preset sizes, and each sub-metal block of a preset size has a preset weight, and the size and weight of the sub-metal blocks of different preset sizes have a preset relationship. The present invention transforms the original fixed single product structure into a structure that can be flexibly customized and combined and can be split into standard small and micro blocks, and realizes low-cost and high-efficiency production of small and micro, customized products that originally had low manufacturing efficiency and high cost through a combined batch production method, solving the market pain points.

Description

Technical Field

[0001] The invention relates to the field of metal products, and in particular to a metal product and a manufacturing method thereof, and a forming and cutting die. Background Art

[0002] As mass consumption / investment tends to be increasingly small-scale, convenient and personalized, physical precious metals have strong investment and value-preserving value. In particular, as a convenient and personalized physical product that combines security investment with cultural consumption, it is becoming increasingly popular among young consumers.

[0003] At present, the main shortcomings of traditional precious metal products are: first, most of them are fixed and standardized bar, coin and stamp products. The purchase threshold of large-weight products is high, and the sales premium of small-weight products is high. The form is single and the after-sales use is very inconvenient, which cannot meet the extensive small and micro needs and scattered and diversified usage needs; second, the production methods of traditional precious metal products are fixed, the customization cost is extremely high and the efficiency is low, especially for customized small and micro products. The customization cost even exceeds the value of the precious metal material itself, which seriously deviates from the guarantee investment attribute of the precious metal itself.

[0004] The above reasons are mainly due to the production technology limitations of the traditional fixed stamping "one mold one product". One style of product needs to match a fixed style stamping mold. The production process and labor costs required for the same product are basically similar. This traditional manufacturing method and mold are obviously not conducive to the production of light weight and personalized products. Summary of the invention

[0005] In response to the above technical problems, the embodiments of the present invention provide a metal product and its manufacturing method, and a forming and cutting mold, which transform the original fixed single product structure into a structure that can be flexibly customized and combined and can be disassembled into standard small and micro blocks. The originally high-cost small and customized products are produced at low cost and high efficiency through a combined batch production method, thus solving the market pain points.

[0006] A first aspect of an embodiment of the present invention provides a metal product, the metal product comprising:

[0007] A metal body, wherein the metal body is divided into a plurality of sub-metal blocks, and the plurality of sub-metal blocks are arranged in an array;

[0008] Adjacent sub-metal blocks are connected, and a dividing groove is formed at the connection between the adjacent sub-metal blocks, wherein the dividing groove has a sharp corner and a calibrated shape;

[0009] The plurality of sub-metal blocks are in at least two preset sizes, each sub-metal block of the preset size has a preset weight, and the size and weight of the sub-metal blocks of different preset sizes have a preset relationship.

[0010] Optionally, the shapes of the plurality of sub-metal blocks are one preset shape, or the shapes of the plurality of sub-metal blocks include at least two preset shapes.

[0011] Optionally, the preset shape includes at least one of a square, a rectangle, a rhombus and a triangle.

[0012] Optionally, the preset shape includes a square and a rectangle.

[0013] Optionally, the sub-metal blocks in each row have the same width, and the width direction is perpendicular to the thickness direction of the metal body; and / or the sub-metal blocks in each column have the same length, and the length direction is perpendicular to the thickness direction of the metal body.

[0014] Optionally, the plurality of sub-metal blocks include basic sub-metal blocks and non-basic sub-metal blocks, the size of the basic sub-metal block is a calibrated size, and the weight of the basic sub-metal block is a calibrated weight;

[0015] The size of the non-basic metal sub-block is a first integer multiple of the rated size, the weight of the non-basic metal sub-block is a second integer multiple of the rated weight, and the first integer multiple is equal to the second integer multiple.

[0016] Optionally, the number of the basic sub-metal blocks is greater than or equal to 2; and / or,

[0017] The non-basic sub-metal blocks include at least two sizes.

[0018] Optionally, the dividing groove is a symmetrical structure.

[0019] Optionally, the shape of the outer edge of each sub-metal block located at the outermost side of the metal body is the same as the shape of a portion of the dividing groove located on one side of the central axis.

[0020] Optionally, the dividing groove is a V-shaped groove.

[0021] Optionally, the top angle of the V-shaped groove is a sharp angle, and the accuracy of the sharp angle of the V-shaped groove is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0022] The bisector of the top angle of the V-shaped groove is perpendicular to the bottom surface of the sub-metal block, and the top angle of the V-shaped groove is greater than 60 degrees and less than or equal to 150 degrees; and / or,

[0023] The opening width of the V-shaped groove is greater than or equal to the depth of the V-shaped groove; and / or,

[0024] A vertical distance from the vertex of the V-shaped groove to the bottom surface of the sub-metal block is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

[0025] Optionally, the dividing groove is a U-shaped groove.

[0026] Optionally, the bottom of the U-shaped groove is a V-shaped sharp corner, and the accuracy of the sharp corner of the U-shaped groove is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0027] The bisector of the sharp angle of the U-shaped groove is perpendicular to the bottom surface of the sub-metal block, and the sharp angle of the U-shaped groove is greater than 60 degrees and less than or equal to 150 degrees; and / or,

[0028] A vertical distance from the vertex of the U-shaped groove to the bottom surface of the sub-metal block is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

[0029] Optionally, by applying force to the sub-metal blocks on both sides of the dividing groove, adjacent sub-metal blocks can be divided along the dividing groove, and the error between the weight of each sub-metal block of preset shape after division and the calibrated weight of the sub-metal block of such preset shape is less than or equal to +0.01g and greater than or equal to -0.01g.

[0030] Optionally, a surface of each of the sub-metal blocks is provided with a pattern.

[0031] Optionally, the patterns of the sub-metal blocks of different preset sizes are different.

[0032] Optionally, the patterns of the sub-metal blocks of different preset sizes are the same.

[0033] Optionally, the pattern includes one or more of text, symbols, graphics, textures, paintings or images.

[0034] Optionally, the metal product is made of precious metal.

[0035] A second aspect of the embodiments of the present invention provides a method for manufacturing the metal product according to the first aspect, the method comprising:

[0036] A plurality of mold cores are placed in a mold bin of a forming and cutting mold, the forming and cutting mold comprises a mold frame, a first pressing mold and a second pressing mold arranged on the mold frame, the first pressing mold is slidably arranged on the mold frame, and the first pressing mold cooperates with the second pressing mold to form the mold bin, the plurality of mold cores are arranged in an array, and the bottoms of the plurality of mold cores abut against a side of the second pressing mold facing the first pressing mold, a cutting edge is provided on the top edge of each mold core, and the integral body formed by adjacent cutting edges of adjacent mold cores is adapted to the dividing groove of the metal product, the tops of the cutting edges are sharp, the heights of the plurality of mold cores are equal, and the sizes of the tops of the plurality of mold cores include at least two types, and the sizes of the tops of the plurality of mold cores correspond to at least two preset sizes of the plurality of sub-metal blocks of the metal product;

[0037] Putting a standard metal sheet with a flat surface into the mold bin and placing it on top of the plurality of mold cores;

[0038] Applying pressure to the first pressing die causes the first pressing die to move toward the second pressing die to obtain the metal product.

[0039] Optionally, the shapes of the tops of the plurality of mold cores correspond to the shapes of the plurality of sub-metal blocks of the metal product;

[0040] The shapes of the tops of the plurality of mold cores are one shape, or the shapes of the tops of the plurality of mold cores include at least two shapes.

[0041] Optionally, the tops of the plurality of mold cores have a shape of at least one of a square, a rectangle, a diamond and a triangle.

[0042] Optionally, the shapes of the tops of the plurality of mold cores include square and rectangle.

[0043] Optionally, the width of the top of each row of cores is equal, and the width direction is perpendicular to the height direction of the cores; and / or the length of the top of each column of cores is equal, and the length direction is perpendicular to the height direction of the cores.

[0044] Optionally, the plurality of mold cores include a basic mold core and a non-basic mold core, the size of the top of the basic mold core is a calibrated size, and the cavity at the top of the basic mold core is a calibrated capacity;

[0045] The size of the top of the non-basic mold core is the third integer multiple of the calibrated size, the cavity capacity of the top of the non-basic mold core is the fourth integer multiple of the calibrated capacity, and the third integer multiple is equal to the fourth integer multiple.

[0046] Optionally, the number of the basic mold cores is greater than or equal to 2; and / or,

[0047] The top portion of the non-base core includes at least two sizes.

[0048] Optionally, the cutting edges of each mold core are the same, and adjacent cutting edges of adjacent mold cores form an overall V-shaped convex edge.

[0049] Optionally, the top angle of the V-shaped ridge is a sharp angle, and the accuracy of the sharp angle of the V-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0050] The apex angle bisector of the V-shaped ridge is perpendicular to the top of the mold core, and the apex angle of the V-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees; and / or,

[0051] The bottom width of the V-shaped ridge is greater than or equal to the height of the V-shaped ridge.

[0052] Optionally, the cutting edges of each mold core are the same, and adjacent cutting edges of adjacent mold cores form an overall U-shaped convex edge.

[0053] Optionally, the top of the U-shaped ridge is a V-shaped sharp corner, and the precision of the sharp corner of the U-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0054] The bisector of the sharp angle of the U-shaped ridge is perpendicular to the top of the mold core, and the sharp angle of the U-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees.

[0055] Optionally, the opposing surfaces of the two cutting edges of each mold core include inclined surfaces, and the opposing surfaces of the two cutting edges of each mold core are vertical surfaces, and the vertical surfaces are perpendicular to the top of the mold core.

[0056] Optionally, the second pressing mold is slidably disposed on the mold frame.

[0057] A third aspect of the embodiments of the present invention provides a forming and cutting die for a metal product according to the first aspect, wherein the forming and cutting die comprises a die frame, a first pressing die and a second pressing die provided on the die frame, wherein the first pressing die is slidably provided on the die frame, and the first pressing die cooperates with the second pressing die to form a die bin;

[0058] The forming and cutting die further comprises a plurality of movable die cores. After the plurality of die cores are placed in the die bin, the plurality of die cores are arranged in an array, and the bottoms of the plurality of die cores abut against the side of the second pressing die facing the first pressing die. A cutting edge is provided on the top edge of each die core. The integral body formed by adjacent cutting edges of adjacent die cores is adapted to the dividing groove of the metal product. The tops of the cutting edges are sharp. The heights of the plurality of die cores are equal. The sizes of the tops of the plurality of die cores include at least two sizes. The sizes of the tops of the plurality of die cores correspond to at least two preset sizes of the plurality of sub-metal blocks of the metal product.

[0059] A standard metal sheet with a flat surface is placed in the mold bin and on top of the plurality of mold cores, and pressure is applied to the first pressing mold so that the first pressing mold moves toward the second pressing mold to obtain the metal product.

[0060] Optionally, the shapes of the tops of the plurality of mold cores correspond to the shapes of the plurality of sub-metal blocks of the metal product;

[0061] The shapes of the tops of the plurality of mold cores are one shape, or the shapes of the tops of the plurality of mold cores include at least two shapes.

[0062] Optionally, the tops of the plurality of mold cores have a shape of at least one of a square, a rectangle, a diamond and a triangle.

[0063] Optionally, the shapes of the tops of the plurality of mold cores include square and rectangle.

[0064] Optionally, the width of the top of each row of cores is equal, and the width direction is perpendicular to the height direction of the cores; and / or the length of the top of each column of cores is equal, and the length direction is perpendicular to the height direction of the cores.

[0065] Optionally, the plurality of mold cores include a basic mold core and a non-basic mold core, the size of the top of the basic mold core is a calibrated size, and the cavity at the top of the basic mold core is a calibrated capacity;

[0066] The size of the top of the non-basic mold core is the third integer multiple of the calibrated size, the cavity capacity of the top of the non-basic mold core is the fourth integer multiple of the calibrated capacity, and the third integer multiple is equal to the fourth integer multiple.

[0067] Optionally, the number of the basic mold cores is greater than or equal to 2; and / or,

[0068] The top portion of the non-base core includes at least two sizes.

[0069] Optionally, the cutting edges of each mold core are the same, and adjacent cutting edges of adjacent mold cores form an overall V-shaped convex edge.

[0070] Optionally, the top angle of the V-shaped ridge is a sharp angle, and the accuracy of the sharp angle of the V-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0071] The apex angle bisector of the V-shaped ridge is perpendicular to the top of the mold core, and the apex angle of the V-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees; and / or,

[0072] The bottom width of the V-shaped ridge is greater than or equal to the height of the V-shaped ridge.

[0073] Optionally, the cutting edges of each mold core are the same, and adjacent cutting edges of adjacent mold cores form an overall U-shaped convex edge.

[0074] Optionally, the top of the U-shaped ridge is a V-shaped sharp corner, and the precision of the sharp corner of the U-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or,

[0075] The sharp angle bisector of the U-shaped ridge is perpendicular to the top of the mold core, and the sharp angle of the U-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees.

[0076] Optionally, the opposing surfaces of the two cutting edges of each of the mold cores include inclined surfaces, and the opposing surfaces of the two cutting edges of each of the mold cores are vertical surfaces, and the vertical surfaces are perpendicular to the top of the mold core.

[0077] Optionally, the second pressing mold is slidably disposed on the mold frame.

[0078] In the technical solution provided by the embodiment of the present invention, the metal body is divided into multiple sub-metal blocks, and the multiple sub-metal blocks are in at least two preset sizes, and dividing grooves are formed at the connection points of adjacent sub-metal blocks, so that the originally fixed single product structure is transformed into a structure that can be flexibly customized and combined and can be split into standard small and micro blocks. The originally low-efficiency and high-cost small and micro-customized products are achieved through a combined batch production method with low cost and high efficiency, thus solving the market pain points. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 It is a schematic diagram of the overall structure of a metal sheet processed by a forming and cutting die and a metal product obtained after the processing in one embodiment of the present invention;

[0080] Figure 2 for Figure 1 A schematic diagram of the overall structure of the metal product in the illustrated embodiment;

[0081] Figure 3 for Figure 1 The overall structure schematic diagram and the partial structure enlarged schematic diagram of the metal product in the illustrated embodiment;

[0082] Figure 4 It is a schematic diagram of the structure of the metal product after segmentation and a schematic diagram of the structure of the mold core in one embodiment of the present invention;

[0083] Figure 5 The figure is a schematic diagram of a method flow of a method for manufacturing a metal product in one embodiment of the present invention.

[0084] Reference numerals:

[0085] 10: metal body; 11: sub-metal block; 111: basic sub-metal block; 112: non-basic sub-metal block; 12: splitting groove; 121: V-shaped groove; 122: U-shaped groove;

[0086] 20: Metal sheet;

[0087] 110: mold frame; 120: first pressing mold; 130: second pressing mold; 140: mold bin; 150: mold core; 151: basic mold core; 152: non-basic mold core; 153: cutting edge. DETAILED DESCRIPTION

[0088] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0089] It should be noted that the following embodiments can be combined if there is no conflict.

[0090] The embodiment of the present invention provides a metal product, please combine Figure 1 to Figure 2 The metal product may include a metal body 10, which is divided into a plurality of sub-metal blocks 11, and the plurality of sub-metal blocks 11 are arranged in an array. Exemplarily, the plurality of sub-metal blocks 11 are arranged in a row or a column; exemplary, the plurality of sub-metal blocks 11 are arranged in multiple rows and columns, such as two rows and two columns, three rows and two columns, or other numbers of rows and columns.

[0091] Adjacent sub-metal blocks 11 are connected, and a dividing groove 12 is formed at the connection of adjacent sub-metal blocks 11. The dividing groove 12 is provided with a precise sharp corner and a calibrated shape (i.e., a preset shape). By setting the dividing groove 12 with a precise sharp corner and a calibrated shape between adjacent sub-metal blocks 11, precise segmentation is achieved. The divided sub-metal blocks 11 have extremely precise weights, and the weight error meets expectations, overcoming the shortcomings of the high production cost of traditional small-weight metal investment products and the inconvenience of after-sales use of large-weight products, greatly improving the production efficiency of the sub-metal blocks 11 and extremely accurately controlling the tolerance material loss cost. Using the stress concentration principle in material mechanics, extremely precise dividing grooves 12 are provided between each sub-metal block 11 in the metal body 10 as stress concentration positions, so that the large metal body 10 breaks when the stress reaches the maximum value under the action of external force and is divided into small sub-metal blocks 11. Since the dividing groove 12 is a precise sharp corner, the more precise the stress concentration position is, the higher the segmentation accuracy is, the less material loss is, and the lower the cost is.

[0092] The plurality of sub-metal blocks 11 are in at least two preset sizes, and each preset shape is a precise shape. Further, each sub-metal block 11 of a preset size has a preset weight, and the size and weight of the sub-metal blocks 11 of different preset sizes have a preset relationship.

[0093] The embodiment of the present invention divides the metal body 10 into multiple sub-metal blocks 11, and the multiple sub-metal blocks 11 are of at least two preset sizes. The connecting parts of adjacent sub-metal blocks 11 form dividing grooves 12, thereby transforming the original fixed single product structure into a structure that can be flexibly customized and combined and can be split into standard small and micro blocks. The original small and micro-sized and customized products with low manufacturing efficiency and high cost are realized at low cost and high efficiency through combined batch production methods, thus solving the market pain points.

[0094] In the embodiment of the present invention, the material of the metal product is a precious metal, such as gold, silver or other precious metals; it can be understood that the material of the metal product is not limited to precious metals, but may also be other metals.

[0095] The metal body 10 of the embodiment of the present invention may be in a square, rectangular or other shapes.

[0096] Since the plurality of sub-metal blocks 11 are formed on the same metal body 10 and the thickness of the metal body 10 is the same at all locations, the thicknesses of the plurality of sub-metal blocks 11 are completely the same.

[0097] The shapes of the multiple sub-metal blocks 11 can be designed as needed. For example, in some embodiments, the shape of the multiple sub-metal blocks 11 is a preset shape, which can be a square, rectangle, diamond, or triangle, or other shapes.

[0098] In some embodiments, the shapes of the plurality of sub-metal blocks 11 include at least two preset shapes, for example, the preset shapes may include at least two of a square, a rectangle, a diamond and a triangle. Figure 1 and Figure 2 The preset shapes include square (sub-metal blocks 11 labeled 1 and 4 in the figure) and rectangular ( Figure 2 Sub-metal block 11 with reference number 2). For further optional reference, see Figure 1 , the width of each row of sub-metal blocks 11 is equal, and the width direction is perpendicular to the thickness direction of the metal body 10; optional, please refer again Figure 1 The lengths of the sub-metal blocks 11 in each row are equal, and the length direction is perpendicular to the thickness direction of the metal body 10. In the embodiment of the present invention, the length direction and the width direction are perpendicular to each other.

[0099] Optionally, the weights of the sub-metal blocks 11 of different preset sizes are different. For example, see FIGS. 1 and 2 . Figure 2 In the figure, the sizes of the sub-metal block 11 labeled 1, the sub-metal block 11 labeled 2 and the sub-metal block 11 labeled 4 are different, among which the preset size corresponding to the sub-metal block 11 labeled 1 is 9x9mm (length x width), the preset sizes corresponding to the sub-metal block 11 labeled 2 include 18x9mm (the sub-metal block 11 labeled 2 above the sub-metal block 11 labeled 4) and 9x18mm (the sub-metal block 11 labeled 2 on the right side of the sub-metal block 11 labeled 4), the preset size corresponding to the sub-metal block 11 labeled 4 is 18x18mm, the weight of the sub-metal block 11 labeled 1 is 1 gram, the weight of the sub-metal block 11 labeled 2 is 2 grams, and the weight of the sub-metal block 11 labeled 4 is 4 grams. It should be noted that, in the embodiment of the present invention, for the first sub-metal block and the second sub-metal block, if the length of the first sub-metal block = the width of the second sub-metal block, and the width of the first sub-metal block = the length of the second sub-metal block, then the preset size corresponding to the first sub-metal block is the same as the preset size corresponding to the second sub-metal block, that is, the sub-metal blocks 11 of 18x9mm and 9x18mm belong to the same preset size.

[0100] Optionally, among the sub-metal blocks 11 of different preset sizes, some of the sub-metal blocks 11 of different sizes have different weights, and another part of the sub-metal blocks 11 of different sizes have the same weight.

[0101] See also Figure 2, the multiple sub-metal blocks 11 of the embodiment of the present invention may include a basic sub-metal block 111 and a non-basic sub-metal block 112, wherein the size of the basic sub-metal block 111 is a calibrated size, and the size of the non-basic sub-metal block 112 is a first integer multiple of the size of the basic sub-metal block 111 (i.e., the calibrated size). The first integer multiple may be a multiple of the length of a single side of the basic sub-metal block 111 or a multiple of the length of each of the two sides. Furthermore, the weight of the basic sub-metal block 111 is a calibrated weight, and the weight of the non-basic sub-metal block 112 is also a second integer multiple of the weight of the basic sub-metal block 111 (i.e., the calibrated weight), and the first integer multiple is equal to the second integer multiple, that is, the following relationship is satisfied:

[0102]

[0103] In formula (1), Size0 is the size of the basic sub-metal block 111, and the size of the basic sub-metal block 111 is the product of the length of the basic sub-metal block 111 and the width of the basic sub-metal block 111;

[0104] Size1 is the size of the non-basic sub-metal block 112 , and the size of the non-basic sub-metal block 112 is the product of the length of the non-basic sub-metal block 112 and the width of the non-basic sub-metal block 112 ;

[0105] Weight0 is the weight of the basic metal block 111;

[0106] Weight1 is the weight of the non-basic sub-metal block 112 .

[0107] Exemplarily, the basic sub-metal block 111 is a square prism of 9x9 mm, and the mass of the basic sub-metal block 111 is 1 gram. The non-basic sub-metal block 112 includes a first sub-metal block and a second sub-metal block. The first sub-metal block is a rectangular prism of 9x18 mm, and the mass of the first sub-metal block is 2 grams. The second sub-metal block is a square prism of 18x18 mm, and the mass of the second sub-metal block is 4 grams.

[0108] Exemplarily, the basic sub-metal block 111 is a square prism of 9x9 mm, and the mass of the basic sub-metal block 111 is 1 gram. The non-basic sub-metal block 112 includes a third sub-metal block and a fourth sub-metal block. The third sub-metal block is a rectangular prism of 9x18 mm, and the mass of the third sub-metal block is 2 grams. The fourth sub-metal block is a rectangular prism of 9x27 mm, and the mass of the fourth sub-metal block is 3 grams.

[0109] It can be understood that the first integer multiple and the second integer multiple are not limited to an equal relationship, but can also be other relationships, such as the first integer multiple is greater than the second integer multiple, and the first integer multiple / the second integer multiple is a positive integer, or the second integer multiple is greater than the first integer multiple, and the second integer multiple / the first integer multiple is a positive integer.

[0110] Optionally, the number of basic sub-metal blocks 111 is greater than or equal to 2. The number of basic sub-metal blocks 111 can be designed according to specific requirements. Exemplarily, the number of basic sub-metal blocks 111 is 6.

[0111] Optionally, the non-basic sub-metal block 112 includes one or more sizes. Exemplarily, the non-basic sub-metal block 112 includes at least two sizes.

[0112] Exemplarily, the metal body 10 has a rectangular / square shape of an integer mass, which is obtained by combining and customizing different numbers of basic sub-metal blocks 111 and other sub-metal blocks 11. For example, the metal body 10 has a rectangular shape of 10 grams, which can be composed of 6 basic sub-metal blocks 111 of 1 gram and 1 sub-metal block 11 of 4 grams.

[0113] The dividing groove 12 may be a symmetrical structure or an asymmetrical structure.

[0114] Exemplarily, the dividing groove 12 is a symmetrical structure. Further, the shape of the outer edge of each sub-metal block 11 located on the outermost side of the metal body 10 is the same as the shape of the portion of the dividing groove 12 located on one side of the central axis, thereby improving the aesthetics of the metal product.

[0115] Optionally, in some embodiments, a dividing groove 12 is formed on one side of the connection between adjacent sub-metal blocks 11; in some embodiments, dividing grooves 12 are formed on both sides of the connection between adjacent sub-metal blocks 11, and the dividing grooves 12 on both sides are directly opposite along the thickness direction of the metal body 10, wherein the dividing groove 12 on one side is a main dividing groove 12, and the dividing groove 12 on the other side is used as an auxiliary dividing groove 12 of the main dividing groove 12, and the size (including depth and opening width) of the main dividing groove 12 is greater than the size of the auxiliary dividing groove 12. Optionally, the structure of the main dividing groove 12 is similar to that of the auxiliary dividing groove 12.

[0116] Optionally, force is applied to the sub-metal blocks 11 on both sides of the dividing groove 12, so that the adjacent sub-metal blocks 11 can be divided along the dividing groove 12. The error between the weight of each sub-metal block 11 of a preset shape after division and the calibrated weight of the sub-metal block 11 of the preset shape (the size of which can be preset as needed) is less than or equal to +0.01g and greater than or equal to -0.01g. In this way, precise division of the sub-metal blocks 11 is achieved.

[0117] Exemplarily, the segmentation process of the metal product may include: segmenting a 4*4 (i.e., 4 rows and 4 columns) metal product along the segmentation grooves 12 of each column to obtain a larger metal module; and then segmenting along the segmentation grooves 12 of adjacent sub-metal blocks 11 in each metal module to obtain 16 segmented sub-metal blocks 11.

[0118] In the following embodiments, the example of forming the dividing groove 12 on one side of the connection between adjacent sub-metal blocks 11 is used for description.

[0119] The dividing groove 12 may be a V-shaped groove 121 , a U-shaped groove 122 , or a groove of other shapes.

[0120] For example, in some embodiments, see Figure 3 In the first partial cross-sectional view, the dividing groove 12 is a V-shaped groove 121.

[0121] Optionally, the top angle of the V-groove 121 is a sharp angle, and the accuracy of the sharp angle of the V-groove 121 is greater than or equal to 0.005 mm and less than or equal to 0.02 mm, ensuring that the sharp angle of each V-groove 121 is a precise sharp angle and that the accuracy of the sharp angles of multiple V-grooves 121 is roughly the same.

[0122] Optionally, the apex angle bisector of the V-shaped groove 121 is perpendicular to the bottom surface of the sub-metal block 11, and the apex angle of the V-shaped groove 121 is greater than 60 degrees and less than or equal to 150 degrees. Exemplarily, the apex angle of the V-shaped groove 121 is 65 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees or other angles greater than 60 degrees and less than 150 degrees.

[0123] Optionally, the opening width of the V-groove 121 is greater than or equal to the depth of the V-groove 121 . It should be noted that, in the embodiment of the present invention, the opening of the V-groove 121 is the outermost opening of the V-groove 121 , and the width of the opening of the V-groove 121 is also the maximum width of the V-groove 121 .

[0124] Optionally, the vertical distance from the vertex of the V-groove 121 to the bottom surface of the sub-metal block 11 is greater than or equal to 0.1 mm and less than or equal to 0.3 mm, so that each sub-metal block 11 can be connected together to form a whole, and at the same time, each sub-metal block 11 can be easily separated from the large block along the V-groove 121. For example, a simple tool or manual force can be applied to the sub-metal blocks 11 on both sides of the V-groove 121, so that multiple sub-metal blocks 11 with precise weight and size can be easily separated. Exemplarily, the vertical distance from the vertex of the V-groove 121 to the bottom surface of the sub-metal block 11 is 0.1 mm, 0.12 mm, 0.14 mm, 0.16 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.24 mm, 0.26 mm, 0.28 mm, 0.3 mm or other values ​​greater than 0.1 mm and less than 0.3 mm.

[0125] In some embodiments, see Figure 3 In the second partial cross-sectional view, the dividing groove 12 is a U-shaped groove 122.

[0126] Optionally, the bottom of the U-shaped groove 122 is a V-shaped sharp corner, and the accuracy of the sharp corner of the U-shaped groove 122 is greater than or equal to 0.005mm and less than or equal to 0.02mm, ensuring that the sharp corner of each U-shaped groove 122 is a precise sharp corner, and ensuring that the accuracy of the sharp corners of multiple U-shaped grooves 122 is roughly the same.

[0127] Optionally, the apex bisector of the U-shaped groove 122 is perpendicular to the bottom surface of the sub-metal block 11, and the apex angle of the U-shaped groove 122 is greater than 60 degrees and less than or equal to 150 degrees. Exemplarily, the top angle of the U-shaped groove 122 is 65 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees or other angles greater than 60 degrees and less than 150 degrees.

[0128] Optionally, the vertical distance from the vertex of the U-shaped groove 122 to the bottom surface of the sub-metal block 11 is greater than or equal to 0.1 mm and less than or equal to 0.3 mm, so that each sub-metal block 11 can be connected together to form a whole, and at the same time, each sub-metal block 11 can be easily separated from the large block along the U-shaped groove 122. For example, a simple tool or manual force can be used to apply force to the sub-metal blocks 11 on both sides of the U-shaped groove 122, so that multiple sub-metal blocks 11 with precise weight and size can be easily separated. Exemplarily, the vertical distance from the vertex of the U-shaped groove 122 to the bottom surface of the sub-metal block 11 is 0.1 mm, 0.12 mm, 0.14 mm, 0.16 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.24 mm, 0.26 mm, 0.28 mm, 0.3 mm or other values ​​greater than 0.1 mm and less than 0.3 mm.

[0129] Optionally, a pattern is provided on the surface of each sub-metal block 11 to improve the aesthetics of the product. Exemplarily, each sub-metal block 11 is provided with a pattern on its front and back, respectively, and the patterns on the front and back of each sub-metal block 11 may be the same or different; Exemplarily, each sub-metal block 11 is provided with a pattern on its front and not on its back, and the patterns on the front of each sub-metal block 11 may be the same or different; Exemplarily, each sub-metal block 11 is provided with a pattern on its back and not on its front, and the patterns on the back of each sub-metal block 11 may be the same or different; Exemplarily, some sub-metal blocks 11 are provided with a pattern on their front and not on their back, and another part of the sub-metal blocks 11 are provided with a pattern on their back and not on their front.

[0130] Optionally, in some embodiments, the patterns of sub-metal blocks 11 of different preset sizes are different to distinguish sub-metal blocks 11 of different preset sizes; in some embodiments, the patterns of sub-metal blocks 11 of different preset sizes are the same; of course, the pattern of each sub-metal block 11 can also be designed in other forms, and it may be necessary to design the pattern of each sub-metal block 11.

[0131] In the embodiment of the present invention, the pattern may include one or more of text (such as Chinese characters, English, etc.), symbols, graphics, textures, paintings or images, and may also include others.

[0132] The pattern may be provided on the surface of the sub-metal block 11 by embossing, engraving or printing. Of course, the pattern may also be provided on the surface of the sub-metal block 11 by other methods.

[0133] Furthermore, the present invention also provides a method for manufacturing the metal product of the above embodiment, see Figure 5 , the method may include the following steps:

[0134] S501: placing a plurality of mold cores 150 into a mold bin 140 of a forming and cutting mold;

[0135] Among them, see Figure 1 and Figure 4 The forming and cutting die includes a die frame 110, a first pressing die 120 and a second pressing die 130 disposed on the die frame 110, the first pressing die 120 is slidably disposed on the die frame 110, and the first pressing die 120 and the second pressing die 130 cooperate to form a die bin 140. In this embodiment, the first pressing die 120 and the second pressing die 130 can move relative to each other, thereby changing the size of the die bin 140. In the embodiment of the present invention, the die bin 140 is a closed bin.

[0136] The first pressing mold 120 and the second pressing mold 130 are matched in an up-down manner, and the first pressing mold 120 can slide up and down relative to the second pressing mold 130. For example, the first pressing mold 120 is an upper mold and the second pressing mold 130 is a lower mold; for example, the first pressing mold 120 is a lower mold and the second pressing mold 130 is an upper mold. Of course, the first pressing mold 120 and the second pressing mold 130 can also be matched in other directions, such as a left-right matching manner, and the first pressing mold 120 can slide left-right relative to the second pressing mold 130. For example, the first pressing mold 120 is a left mold and the second pressing mold 130 is a right mold.

[0137] When the first pressing mold 120 and the second pressing mold 130 are in an up-and-down matching manner, when the metal sheet 20 is placed in the mold bin 140, the thickness direction of the metal sheet 20 is parallel to the up-and-down direction; when the first pressing mold 120 and the second pressing mold 130 are in a left-and-right matching manner, when the metal sheet 20 is placed in the mold bin 140, the thickness direction of the metal sheet 20 is parallel to the left-and-right direction.

[0138] Each mold core 150 of the embodiment of the present invention is a movable mold core, and the multiple mold cores 150 are arranged in an array, and the bottoms of the multiple mold cores 150 abut against the side of the second pressing mold 130 facing the first pressing mold 120, and the top edge of each mold core 150 is provided with a cutting edge 153, and the adjacent cutting edges 153 of adjacent mold cores 150 form a whole that is adapted to the dividing groove 12 of the metal product, and the top of the cutting edge 153 is a sharp angle, and the heights of the multiple mold cores 150 are equal, and the sizes of the tops of the multiple mold cores 150 include at least two types, and the sizes of the tops of the multiple mold cores 150 correspond to at least two preset sizes of the multiple sub-metal blocks 11 of the metal product.

[0139] In the embodiment of the present invention, one mold core 150 corresponds to one sub-metal block 11, and the top edge of each mold core 150 is provided with the same cutting edge 153, and the top of the cutting edge 153 is a sharp corner to increase the service life of the mold. The mold core 150 is provided with precise dimensions and is obtained by a precise wire cutting processing method to ensure that the mold cores 150 can accurately match each other when combined.

[0140] The closed mold bin 140 is obtained by a precise wire cutting method to ensure that it can accurately match each mold core 150 when combined. The size of the inner bin of the mold bin 140 matches the size of the mold core 150 in terms of data, and the inner bin can be combined to accommodate multiple mold cores 150. Multiple mold cores 150 of the same or different contents are assembled into the closed mold bin 140 so that the number of mold cores 150 matches the number that the mold bin 140 can accommodate.

[0141] S502: Put the standard metal sheet 20 with a flat surface into the mold bin 140 and place it on top of the multiple mold cores 150;

[0142] The metal sheet 20 may be made of precious metals, such as gold, silver or other precious metals. It is understandable that the metal sheet 20 is not limited to precious metals, but may also be other metals.

[0143] S503: applying pressure to the first pressing die 120 so that the first pressing die 120 moves toward the second pressing die 130 to obtain a metal product.

[0144] Exemplarily, a large-tonnage four-column hydraulic press is used to uniformly extrude the first pressing die 120 until the metal sheet 20 is completely formed, thereby obtaining a metal product.

[0145] Optionally, the second pressing die 130 is slidably disposed on the mold frame 110 to facilitate ejecting the pressed metal sheet after the pressing is completed. Of course, in some embodiments, the second pressing die 130 is fixedly disposed on the mold frame 110 .

[0146] In the embodiment of the present invention, the shape of the top of the multiple mold cores 150 corresponds to the shape of the multiple sub-metal blocks 11 of the metal product. For example, if the shape of the sub-metal block 11 is a square, then the shape of the top of the corresponding mold core 150 is also a square; if the shape of the sub-metal block 11 is a rectangle, then the shape of the top of the corresponding mold core 150 is also a rectangle.

[0147] The shapes of the tops of the multiple mold cores 150 can be designed as needed. For example, in some embodiments, the shapes of the tops of the multiple mold cores 150 are one shape, such as a square, a rectangle, a diamond, or a triangle, or other shapes.

[0148] In some embodiments, the shapes of the tops of the plurality of mold cores 150 include at least two shapes. Exemplarily, the shapes of the tops of the plurality of mold cores 150 include at least two of a square, a rectangle, a diamond, and a triangle.

[0149] For example, in some embodiments, the shapes of the tops of the plurality of mold cores 150 include squares and rectangles. Further, optionally, the widths of the tops of the mold cores 150 in each row are equal, and the width direction is perpendicular to the height direction of the mold cores 150; optionally, the lengths of the tops of the mold cores 150 in each column are equal, and the length direction is perpendicular to the height direction of the mold cores 150.

[0150] Exemplarily, if the shape of the top of the mold core 150 is a square, a rectangle, or a rhombus, then the edges of the four sides of the top of the mold core 150 are all provided with cut edges 153; if the shape of the top of the mold core 150 is a triangle, then the edges of the three sides of the top of the mold core 150 are all provided with cut edges 153. In the embodiment of the present invention, the top edge of the mold core 150 is provided with a cut edge 153, which means that each edge of the top of the mold core 150 is provided with a cut edge 153.

[0151] In addition, it should be noted that in the embodiment of the present invention, the cutting edge 153 on the top of the mold core 150 surrounds a cavity. During pressing, one sub-metal block 11 is accommodated in one cavity, and the volume of the sub-metal block 11 is equal to the capacity of the corresponding cavity.

[0152] The plurality of mold cores 150 of the embodiment of the present invention may include a basic mold core 151 and a non-basic mold core 152, the size of the top of the basic mold core 151 is a nominal size (corresponding to the size of the basic sub-metal block 111), and the size of the top of the non-basic mold core 152 is a third integer multiple (equal to the first integer multiple) of the size (i.e., nominal size) of the basic mold core 151. The third integer multiple may be a multiple of the length of a single side of the top of the basic mold core 151 or a multiple of the length of both sides of the top of the basic mold core 151.

[0153] Furthermore, the cavity at the top of the basic mold core 151 has a rated capacity (corresponding to the volume of the basic sub-metal block 111 ), and the cavity at the top of the non-basic mold core 152 has a capacity that is a fourth integer multiple of the rated capacity, and the third integer multiple is equal to the fourth integer multiple.

[0154] It can be understood that the third integer multiple and the fourth integer multiple are not limited to an equal relationship, but can also be other relationships, such as the third integer multiple is greater than the fourth integer multiple, and the third integer multiple / fourth integer multiple is a positive integer, or the fourth integer multiple is greater than the third integer multiple, and the fourth integer multiple / third integer multiple is a positive integer.

[0155] Optionally, the number of basic mold cores 151 is greater than or equal to 2. The number of basic mold cores 151 can be designed according to specific requirements. Exemplarily, the number of basic mold cores 151 is 6.

[0156] Optionally, the top of the non-basic mold core 152 includes one or more sizes. Exemplarily, the top of the non-basic mold core 152 includes at least two sizes.

[0157] Optionally, the opposing surfaces of the two cutting edges 153 of each mold core 150 include inclined surfaces, and the opposing surfaces of the two cutting edges 153 of each mold core 150 are vertical surfaces, which are perpendicular to the top of the mold core 150. Adjacent cutting edges 153 of adjacent mold cores 150 form an overall V-shaped convex edge or a U-shaped convex edge.

[0158] Exemplarily, in some embodiments, the cutting edges 153 of each mold core 150 are the same, and the adjacent cutting edges 153 of adjacent mold cores 150 form an overall V-shaped convex ridge. When pressure is applied to the first pressing die 120 so that the first pressing die 120 moves toward the second pressing die 130, the first pressing die 120 extrude the metal sheet 20 so that the metal sheet 20 extrude multiple mold cores 150, and the V-shaped convex ridge can process a V-shaped groove 121 on the metal sheet 20.

[0159] Optionally, the top angle of the V-shaped ridge is a sharp angle, and the accuracy of the sharp angle of the V-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm, so that the top angle of the V-shaped groove 121 processed by the V-shaped ridge on the metal sheet 20 is a precise V-shaped sharp angle.

[0160] Optionally, the apex angle bisector of the V-shaped ridge is perpendicular to the top of the mold core 150, and the apex angle of the V-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees. For example, the cone angle of the V-shaped ridge is 65 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees or other angles greater than 60 degrees and less than 150 degrees, so as to ensure that the V-shaped ridge will not break, be damaged, or deform during high-gravity and high-efficiency extrusion operations, thereby affecting the processing accuracy and efficiency, so as to improve the service life and accuracy of the initial rapid prototyping cutting mold, greatly improve production efficiency, and reduce production costs. Optionally, the inner angle of each cutting edge 153 is a sharp angle greater than 31 degrees and less than 75 degrees, so as to improve the service life of the mold.

[0161] The bottom width of the V-shaped ridge is greater than or equal to the height of the V-shaped ridge. It should be noted that the bottom of the V-shaped ridge refers to the side of the V-shaped ridge close to the top of the mold core 150, the width direction of the V-shaped ridge refers to the splicing direction along two adjacent cutting edges 153, the height direction of the V-shaped ridge is perpendicular to the width direction of the V-shaped ridge, and the height direction of the V-shaped ridge is parallel to the relative movement direction of the first pressing mold 120 and the second pressing mold 130.

[0162] In some embodiments, the cutting edges 153 of each mold core 150 are the same, and the adjacent cutting edges 153 of adjacent mold cores 150 form an overall U-shaped convex ridge. When pressure is applied to the first pressing die 120 so that the first pressing die 120 moves toward the second pressing die 130, the first pressing die 120 extrude the metal sheet 20 so that the metal sheet 20 extrude multiple mold cores 150, and the U-shaped convex ridge can process a U-shaped groove 122 on the metal sheet 20.

[0163] Optionally, the top of the U-shaped ridge is a V-shaped sharp corner, and the accuracy of the sharp corner of the U-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm, so that the bottom of the U-shaped groove 122 processed by the U-shaped ridge on the metal sheet 20 is a precise V-shaped sharp corner.

[0164] Optionally, the bisector of the sharp angle of the U-shaped ridge is perpendicular to the top of the mold core 150, and the sharp angle of the U-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees. For example, the cone angle of the U-shaped ridge is 65 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees or other angles greater than 60 degrees and less than 150 degrees, so as to ensure that the U-shaped ridge will not break, be damaged, or deform during high-gravity and high-efficiency extrusion operations, thereby affecting the processing accuracy and efficiency, so as to improve the service life and accuracy of the initial rapid prototyping cutting mold, greatly improve production efficiency, and reduce production costs. Optionally, the inner angle of each cutting edge 153 is a sharp angle greater than 31 degrees and less than 75 degrees, so as to improve the service life of the mold.

[0165] The top of the mold core 150 may be provided with a first pattern forming portion, and when the metal sheet 20 is processed, the first pattern forming portion can press the bottom of the metal sheet 20, so that the bottom of the metal sheet 20 (i.e., the side of the metal sheet 20 facing the mold core 150) forms a pattern of a metal product. Optionally, the top of each mold core 150 is respectively provided with a first pattern forming portion, so that the bottom of each metal sheet 20 forms a pattern of a metal product; optionally, the top of some mold cores 150 is provided with a first pattern forming portion.

[0166] Optionally, a plurality of second pattern forming parts arranged at intervals are provided on the side of the first pressing die 120 facing the second pressing die 130. When the metal sheet 20 is processed, the second pattern forming parts can squeeze the top of the metal sheet 20 so that the top of the metal sheet 20 (i.e., the side of the metal sheet 20 facing the first pressing die 120) forms a pattern of the metal product.

[0167] Optionally, a pattern forming part is provided on the top of each mold core 150 and on the side of the first pressing mold 120 facing the second pressing mold 130, and the number of the second pattern forming parts is equal to that of the first pattern forming parts, and they are aligned up and down. Optionally, the structure of the first pattern forming part is the same as that of the second pattern forming part, so that the patterns on the front and back sides of each sub-metal block 11 are the same; Optionally, the structure of the first pattern forming part is different from that of the second pattern forming part, so that the patterns on the front and back sides of each sub-metal block 11 are different.

[0168] The present invention also provides a forming and cutting die for the metal product of the above embodiment, see Figure 1 and Figure 4The molding and cutting mold includes a mold frame 110, a first pressing mold 120 and a second pressing mold 130 arranged on the mold frame 110, the first pressing mold 120 is slidably arranged on the mold frame 110, and the first pressing mold 120 and the second pressing mold 130 cooperate to form a mold bin 140.

[0169] The forming and cutting die also includes a plurality of movable die cores 150. After the plurality of die cores 150 are placed into the die bin 140, the plurality of die cores 150 are arranged in an array, and the bottoms of the plurality of die cores 150 abut against the side of the second pressing die 130 facing the first pressing die 120. A cutting edge 153 is provided on the top edge of each die core 150. The integral body formed by the adjacent cutting edges 153 of adjacent die cores 150 is adapted to the dividing groove 12 of the metal product. The tops of the cutting edges 153 are sharp. The heights of the plurality of die cores 150 are equal, and the sizes of the tops of the plurality of die cores 150 include at least two sizes, which correspond to at least two preset sizes of the plurality of sub-metal blocks 11 of the metal product.

[0170] A standard metal sheet 20 with a flat surface is placed in the mold bin 140 and on top of a plurality of mold cores 150 , and pressure is applied to the first pressing mold 120 so that the first pressing mold 120 moves toward the second pressing mold 130 to obtain a metal product.

[0171] Optionally, the second pressing die 130 is slidably disposed on the mold frame 110 to facilitate ejecting the pressed metal sheet after the pressing is completed. Of course, in some embodiments, the second pressing die 130 is fixedly disposed on the mold frame 110 .

[0172] In the embodiment of the present invention, the shape of the top of the multiple mold cores 150 corresponds to the shape of the multiple sub-metal blocks 11 of the metal product. For example, if the shape of the sub-metal block 11 is a square, then the shape of the top of the corresponding mold core 150 is also a square; if the shape of the sub-metal block 11 is a rectangle, then the shape of the top of the corresponding mold core 150 is also a rectangle.

[0173] The shapes of the tops of the multiple mold cores 150 can be designed as needed. For example, in some embodiments, the shapes of the tops of the multiple mold cores 150 are one shape, such as a square, a rectangle, a diamond, or a triangle, or other shapes.

[0174] In some embodiments, the shapes of the tops of the plurality of mold cores 150 include at least two shapes. Exemplarily, the shapes of the tops of the plurality of mold cores 150 include at least two of a square, a rectangle, a diamond, and a triangle.

[0175] For example, in some embodiments, the shapes of the tops of the plurality of mold cores 150 include squares and rectangles. Further, optionally, the widths of the tops of the mold cores 150 in each row are equal, and the width direction is perpendicular to the height direction of the mold cores 150; optionally, the lengths of the tops of the mold cores 150 in each column are equal, and the length direction is perpendicular to the height direction of the mold cores 150.

[0176] Exemplarily, if the shape of the top of the mold core 150 is a square, a rectangle, or a rhombus, then the edges of the four sides of the top of the mold core 150 are all provided with cut edges 153; if the shape of the top of the mold core 150 is a triangle, then the edges of the three sides of the top of the mold core 150 are all provided with cut edges 153. In the embodiment of the present invention, the top edge of the mold core 150 is provided with a cut edge 153, which means that each edge of the top of the mold core 150 is provided with a cut edge 153.

[0177] In addition, it should be noted that, in the embodiment of the present invention, the cutting edge 153 at the top of the core 150 surrounds and forms a cavity. During pressing, a sub-metal block 11 is contained in a cavity, and the volume of the sub-metal block 11 is equal to the capacity of the corresponding cavity. The multiple cores 150 of the embodiment of the present invention may include a basic core 151 and a non-basic core 152. The size of the top of the basic core 151 is a calibrated size (corresponding to the size of the basic sub-metal block 111), and the size of the top of the non-basic core 152 is the third integer multiple of the size (i.e., the calibrated size) of the basic core 151 (equal to the first integer multiple). The third integer multiple may be a multiple of the single-side length of the top of the basic core 151 or a multiple of the double-side lengths of the top of the basic core 151.

[0178] Furthermore, the cavity at the top of the basic mold core 151 has a rated capacity (corresponding to the volume of the basic sub-metal block 111 ), and the cavity at the top of the non-basic mold core 152 has a capacity that is a fourth integer multiple of the rated capacity, and the third integer multiple is equal to the fourth integer multiple.

[0179] Optionally, the number of basic mold cores 151 is greater than or equal to 2. The number of basic mold cores 151 can be designed according to specific requirements. Exemplarily, the number of basic mold cores 151 is 6.

[0180] Optionally, the top of the non-basic mold core 152 includes at least two sizes. Of course, the non-basic mold core 152 may also include one size.

[0181] Optionally, the opposing surfaces of the two cutting edges 153 of each mold core 150 include inclined surfaces, and the opposing surfaces of the two cutting edges 153 of each mold core 150 are vertical surfaces, which are perpendicular to the top of the mold core 150. Adjacent cutting edges 153 of adjacent mold cores 150 form an overall V-shaped convex edge or a U-shaped convex edge.

[0182] Optionally, the cutting edges 153 of each mold core 150 are the same, and the adjacent cutting edges 153 of adjacent mold cores 150 form an overall V-shaped convex edge.

[0183] Optionally, the top angle of the V-shaped ridge is a sharp angle, and the precision of the sharp angle of the V-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm.

[0184] Optionally, the apex angle bisector of the V-shaped ridge is perpendicular to the top of the mold core 150, and the apex angle of the V-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees.

[0185] Optionally, the bottom width of the V-shaped ridge is greater than or equal to the height of the V-shaped ridge.

[0186] Optionally, the cutting edges 153 of each mold core 150 are the same, and the adjacent cutting edges 153 of adjacent mold cores 150 form an overall U-shaped convex edge.

[0187] Optionally, the top of the U-shaped ridge is a V-shaped sharp corner, and the precision of the sharp corner of the U-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm.

[0188] Optionally, the bisector of the sharp angle of the U-shaped ridge is perpendicular to the top of the mold core 150, and the sharp angle of the U-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees.

[0189] The structure of the forming and cutting die according to the embodiment of the present invention can be explained and illustrated with reference to the corresponding parts in the above embodiments, which will not be described in detail here.

[0190] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal product, characterized in that: include: A metal body (10), the metal body (10) being divided into a plurality of sub-metal blocks (11), a surface of each of the sub-metal blocks (11) being provided with a pattern, and the plurality of sub-metal blocks (11) being arranged in an array; Adjacent sub-metal blocks (11) are connected, and a dividing groove (12) is formed at the connection between the adjacent sub-metal blocks (11), wherein the dividing groove (12) is a symmetrical structure, and the dividing groove (12) is provided with a sharp corner and a calibrated shape; The plurality of sub-metal blocks (11) are in at least two preset sizes, each sub-metal block (11) of the preset size has a preset weight, and the size and weight of the sub-metal blocks (11) of different preset sizes have a preset relationship; The manufacturing method of the metal product comprises placing a plurality of mold cores (150) in a mold bin (140) of a forming and cutting mold, wherein the forming and cutting mold comprises a mold frame (110), a first pressing mold (120) and a second pressing mold (130) arranged on the mold frame (110), wherein the first pressing mold (120) is slidably arranged on the mold frame (110), and the first pressing mold (120) cooperates with the second pressing mold (130) to form the mold bin (140), and the plurality of mold cores (150) are arranged in an array, and the bottoms of the plurality of mold cores (150) abut against the second pressing mold. The mold (130) faces one side of the first pressing mold (120), and the top edge of each mold core (150) is provided with a cutting edge (153), and the adjacent cutting edges (153) of the adjacent mold cores (150) form a whole that is adapted to the dividing groove (12) of the metal product, and the top of the cutting edge (153) is a sharp angle, and the heights of the plurality of mold cores (150) are equal, and the sizes of the tops of the plurality of mold cores (150) include at least two types, and the sizes of the tops of the plurality of mold cores (150) correspond to at least two preset sizes of the plurality of sub-metal blocks (11) of the metal product; Putting a standard metal sheet (20) with a flat surface into the mold bin (140) and placing it on top of the plurality of mold cores (150); Pressure is applied to the first pressing die (120) so that the first pressing die (120) moves toward the second pressing die (130), thereby obtaining the metal product.

2. The metal product according to claim 1, characterized in that: The shapes of the plurality of sub-metal blocks (11) are one preset shape, or the shapes of the plurality of sub-metal blocks (11) include at least two preset shapes.

3. The metal product according to claim 2, characterized in that: The preset shape includes at least one of a square, a rectangle, a rhombus and a triangle.

4. The metal product according to claim 3, characterized in that: The preset shapes include square and rectangle.

5. The metal product according to claim 4, characterized in that: The sub-metal blocks (11) in each row have an equal width, with the width direction being perpendicular to the thickness direction of the metal body (10); and / or the sub-metal blocks (11) in each column have an equal length, with the length direction being perpendicular to the thickness direction of the metal body (10).

6. The metal product according to claim 1, characterized in that: The plurality of sub-metal blocks (11) include a basic sub-metal block (111) and a non-basic sub-metal block (112); the size of the basic sub-metal block (111) is a calibrated size; and the weight of the basic sub-metal block (111) is a calibrated weight; The size of the non-basic metal sub-block (112) is a first integer multiple of the calibrated size, the weight of the non-basic metal sub-block (112) is a second integer multiple of the calibrated weight, and the first integer multiple is equal to the second integer multiple.

7. The metal product according to claim 6, characterized in that The number of the basic sub-metal blocks (111) is greater than or equal to 2; and / or, The non-basic sub-metal block (112) includes one or more sizes.

8. The metal product according to claim 1, characterized in that: The shape of the outer edge of each sub-metal block (11) located on the outermost side of the metal body (10) is the same as the shape of a portion of the dividing groove (12) located on one side of the central axis.

9. The metal product according to claim 1, characterized in that: The dividing groove (12) is a V-shaped groove (121).

10. The metal product according to claim 9, characterized in that The top angle of the V-shaped groove (121) is a sharp angle, and the accuracy of the sharp angle of the V-shaped groove (121) is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or, The apex angle bisector of the V-shaped groove (121) is perpendicular to the bottom surface of the sub-metal block (11), and the apex angle of the V-shaped groove (121) is greater than 60 degrees and less than or equal to 150 degrees; and / or, The opening width of the V-shaped groove (121) is greater than or equal to the depth of the V-shaped groove (121); and / or, The vertical distance from the vertex of the V-shaped groove (121) to the bottom surface of the sub-metal block (11) is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

11. The metal product according to claim 1, characterized in that The dividing groove (12) is a U-shaped groove (122).

12. The metal product according to claim 11, characterized in that The bottom of the U-shaped groove (122) is a V-shaped sharp corner, and the precision of the sharp corner of the U-shaped groove (122) is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or, The bisector of the sharp angle of the U-shaped groove (122) is perpendicular to the bottom surface of the sub-metal block (11), and the sharp angle of the U-shaped groove (122) is greater than 60 degrees and less than or equal to 150 degrees; and / or, The vertical distance from the vertex of the U-shaped groove (122) to the bottom surface of the sub-metal block (11) is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

13. The metal product according to claim 1, characterized in that By applying force to the sub-metal blocks (11) on both sides of the dividing groove (12), adjacent sub-metal blocks (11) can be divided along the dividing groove (12), and the error between the weight of each sub-metal block (11) of a preset shape after division and the calibrated weight of the sub-metal block (11) of the preset shape is less than or equal to +0.01g and greater than or equal to -0.01g.

14. The metal product according to claim 1, characterized in that The patterns of the sub-metal blocks (11) of different preset sizes are different.

15. The metal product according to claim 1, characterized in that The patterns of the sub-metal blocks (11) of different preset sizes are the same.

16. The metal product according to claim 1, characterized in that The pattern includes one or more of text, symbols, graphics, textures, paintings or images.

17. The metal product according to claim 1, characterized in that The material of the metal product is precious metal.

18. The metal product according to claim 1, characterized in that The shapes of the tops of the plurality of mold cores (150) correspond to the shapes of the plurality of sub-metal blocks (11) of the metal product; The shapes of the tops of the plurality of mold cores (150) are one shape, or the shapes of the tops of the plurality of mold cores (150) include at least two shapes.

19. The metal product according to claim 18, characterized in that The tops of the plurality of mold cores (150) have a shape including at least one of a square, a rectangle, a diamond, and a triangle.

20. The metal product according to claim 19, characterized in that The shapes of the tops of the plurality of mold cores (150) include square and rectangle.

21. The metal product according to claim 20, characterized in that The width of the top of each row of the mold core (150) is equal, and the width direction is perpendicular to the height direction of the mold core (150); and / or the length of the top of each column of the mold core (150) is equal, and the length direction is perpendicular to the height direction of the mold core (150).

22. The metal product according to claim 1, characterized in that The plurality of mold cores (150) include a basic mold core (151) and a non-basic mold core (152), the size of the top of the basic mold core (151) being a calibrated size, and the cavity at the top of the basic mold core (151) being a calibrated capacity; The size of the top of the non-basic mold core (152) is a third integer multiple of the calibrated size, the cavity capacity of the top of the non-basic mold core (152) is a fourth integer multiple of the calibrated capacity, and the third integer multiple is equal to the fourth integer multiple.

23. The metal product according to claim 22, characterized in that The number of the basic mold cores (151) is greater than or equal to 2; and / or, The top of the non-base mold core (152) includes one or more dimensions.

24. The metal product according to claim 1, characterized in that The cutting edges (153) of each mold core (150) are identical, and adjacent cutting edges (153) of adjacent mold cores (150) form an overall V-shaped convex edge.

25. The metal product according to claim 24, characterized in that The top angle of the V-shaped convex ridge is a sharp angle, and the accuracy of the sharp angle of the V-shaped convex ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or, The apex angle bisector of the V-shaped ridge is perpendicular to the top of the mold core (150), and the apex angle of the V-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees; and / or, The bottom width of the V-shaped ridge is greater than or equal to the height of the V-shaped ridge.

26. The metal product according to claim 1, characterized in that The cutting edges (153) of each mold core (150) are identical, and adjacent cutting edges (153) of adjacent mold cores (150) form an overall U-shaped convex edge.

27. The metal product according to claim 26, characterized in that The top of the U-shaped ridge is a V-shaped sharp corner, and the precision of the sharp corner of the U-shaped ridge is greater than or equal to 0.005 mm and less than or equal to 0.02 mm; and / or, The bisector of the sharp angle of the U-shaped ridge is perpendicular to the top of the mold core (150), and the sharp angle of the U-shaped ridge is greater than 60 degrees and less than or equal to 150 degrees.

28. The metal product according to any one of claims 24 to 27, characterized in that The opposing surfaces of the two cutting edges (153) of each mold core (150) include inclined surfaces, and the opposing surfaces of the two cutting edges (153) of each mold core (150) are vertical surfaces, and the vertical surfaces are perpendicular to the top of the mold core (150).

29. The metal product according to claim 1, characterized in that The second pressing mold (130) is slidably disposed on the mold frame (110).

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