Food mold and method for manufacturing the same

Abstract

To provide a mold for food which is preferable in the management of food sanitation.SOLUTION: A food mold according to the present embodiment includes a mold body made of metal and a through hole formed in the mold body, and the through hole has an inner surface roughness of Ra0. 8 μm or less. Preferably, the mold body is made of copper alloys, the through-holes are holes through which foods pass, and the roughness of the outer peripheral face of the mold body is Ra0. 8 μm or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a food mold and a method for manufacturing the same. [Background technology]

[0002] For example, Patent Document 1 discloses a tablet molding die for molding tablets containing at least a base powder and a water-soluble organic polymeric substance, with the content of the water-soluble organic polymeric substance being 10% by weight or more, in which a protective film made of diamond-like carbon is formed on at least a portion of the surface facing the cavity.

[0003] Furthermore, Patent Document 2 discloses a machine component for a food handling machine in which opposing components are in sliding contact with each other, wherein one of the components is made from compressed and sintered powder stainless steel, the density of which is lower than the theoretical density of solid metal to leave porous portions, and these pores are substantially connected, and further the porous portion extending from the outer surface to the inside of the component is impregnated with a metal made of bismuth or a low-friction bismuth-tin alloy with a high bismuth content. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-094197 [Patent Document 2] Special Publication No. 57-52401 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a mold for food products that is preferable in terms of food hygiene management. [Means for solving the problem]

[0006] The food mold according to the present invention has a metal mold body and a through-hole formed in the mold body, and the surface roughness of the inner wall surface of the through-hole is Ra 1.0 μm or less.

[0007] Preferably, the mold body is made of a copper alloy, the through hole is a hole through which food passes, the surface roughness of the inner wall surface of the through hole is Ra 0.4 μm to 0.8 μm, and the surface roughness of the outer peripheral surface of the mold body is Ra 0.8 μm or less.

[0008] In addition, the manufacturing method of the present invention is a method for manufacturing a food mold, and includes the steps of forming a through hole in a metal block and finishing the inner wall surface of the through hole so that the surface roughness of the inner wall surface is Ra 1.0 μm or less. [Effects of the Invention]

[0009] According to the present invention, a mold for food products that is preferable in terms of food hygiene management can be provided. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a plan view of a food mold 1 as seen from the food passing direction. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to the illustrated examples. FIG. 1 is a diagram illustrating the overall configuration of a food mold 1. As shown in Figure 1, food mold 1 has a metal mold body 2 and a through-hole 10 formed in mold body 2, and is used as a mold for molding food products. In this example, food mold 1 is a female mold, but is not limited to this and may be a male mold.

[0012] The mold body 2 is a metal block formed for a mold, for example, a copper alloy block. The through-hole 10 is a hole provided in the mold body 2, and is, for example, a hole through which the food to be molded passes, and has a cross-sectional shape corresponding to the shape of the food after molding. In this example, the through-hole 10 has a circular cross-sectional shape, but is not limited to this and may be elliptical, triangular, rectangular, polygonal, etc. Also, for the sake of convenience of explanation, only the through-hole 10 for molding the food is shown in Figure 1, but in addition to this, a screw hole or the like may be provided.

[0013] The surface roughness of the inner wall surface of the through hole 10 is Ra (arithmetic mean roughness) 1.0 μm or less. More specifically, the surface roughness of the inner wall surface of the through hole 10 is Ra 0.4 μm to 0.8 μm, and the surface roughness of the outer peripheral surface of the mold body 2 is Ra 0.8 μm or less. Since it is more difficult to perform surface processing such as polishing on the inner wall surface of the through hole 10 than on the outer peripheral surface of the mold body 2, a Ra of 0.4 μm to 0.8 μm is appropriate.

[0014] Next, a method for manufacturing the food mold 1 will be described. First, a metal block is formed to fit the size and shape of the mold body 2. For example, a CAC703C copper alloy may be cast or cut out to form the block. The outer peripheral surface of the mold body 2 is finished to Ra 0.8 μm or less. Next, through holes 10 are formed in the cut-out metal block (mold body 2). For example, the through holes 10 are formed using a tin-coated drill, a powder high-speed steel drill, or a carbide drill. Finally, the inner wall surface of through hole 10 is finished so that the surface roughness of the inner wall surface of through hole 10 is Ra 1.0 μm or less. For example, using a carbide end mill, the inner wall surface of through hole 10 is finished to Ra 0.4 μm to 0.8 μm.

[0015] As described above, the manufacturing method of this embodiment makes it possible to manufacture a food mold 1 in which the inner wall surfaces of the through holes 10 are finished to Ra 0.4 μm to 0.8 μm. This food mold 1 is preferable in terms of food hygiene control, since the inner wall surfaces of the through holes 10 are finished to Ra 0.4 μm to 0.8 μm. [Explanation of symbols]

[0016] 1… Food-grade metal mold 2…gold body 10...through hole 100…Inner wall surface

Claims

1. a metal mold body; a through hole formed in the mold body; and The surface roughness of the inner wall surface of the through hole is Ra 1.0 μm or less. Food mold.

2. the mold body is made of a copper alloy, The through-hole is a hole through which food passes, The surface roughness of the inner wall surface of the through hole is Ra 0.4 μm to 0.8 μm, Furthermore, the surface roughness of the outer peripheral surface of the mold body is Ra 0.8 μm or less. The food mold according to claim 1.

3. A method for manufacturing a food mold, comprising: forming a through hole in a metal block; a step of finishing the inner wall surface of the through hole so that the surface roughness of the inner wall surface is Ra 1.0 μm or less; A method for manufacturing a food mold having the above-mentioned components.

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