WO2003099527A1

WO2003099527A1 - The slicing blade of three dimensional helical cutting edge

Info

Publication number: WO2003099527A1
Application number: PCT/CN2003/000380
Authority: WO
Inventors: Yindi Yang
Original assignee: Yindi Yang
Priority date: 2002-05-29
Filing date: 2003-05-22
Publication date: 2003-12-04
Also published as: AU2003242149A1; CN1462674A

Abstract

The present invention discloses a food-slicing blade in the field of tools for food processing. The slicing blade aims at cutting the food quickly, which possesses various size, shape and hardness, into uniform slices. The solution of the invention is characterized in that the slicing blade is provided with a cutting edge in the shape of specific three-dimensional helix. During the slicing process, the cutting edge can not only move in the direction of the cross section the food, but also be spirally feed in the longitudinal direction of it. As the result, the food slices of uniform thickness are obtained. The slicing machine including the blade according to the invention can be applied to process fruit and other agriculture products both for home and restaurant.

Description

Technical field The present invention belongs to the field of food processing tools. BACKGROUND ART Traditional foods have been used to slice food into thin slices for thousands of years. Although there are a variety of changes in the material of the knife, the shape of the knife face and the style of the handle, it can be used freely to quickly cut raw and cooked food of varying sizes, shapes, and hardness into 1-2 mm slices Yes, only senior knife chefs in the catering industry. Some food slicing tools and slicers have appeared on the market in recent decades. There are three representative types: One is a flat positioning skateboard and a beveled knife that is higher than the skateboard (according to the slice thickness). Push the cut object towards the blade on the slide by hand to cut the crispy food into thin slices. The second type is a flat disk rotating around the central axis with a radial direction that rises above the disk and is parallel to the disk Blade. Each time the blade rotates, it cuts a piece of the object that is pressed above the cutter head and does not rotate with the cutter head. The third is a slicer that is widely used in China to cut frozen mutton and in Europe and the United States. The slicing knife is a flat disc with a cutting edge on the circumference. The object to be cut is repeatedly pushed toward the blade on a sliding plate parallel to the blade surface, and the frozen food can be sliced into thin slices. Not suitable for cutting soft food with irregular shapes. Due to its large size, it is not expensive to promote to families.

One concept is: "The sliced slice is flat, so the blade surface must be flat." Therefore, the cutting edges are all limited to two-dimensional planes. The direction of the idea is limited to some actions of manual slicing with mechanical devices. So far, no slicing tool capable of cutting soft foods of various sizes and shapes into uniform thin slices has appeared. In fact, the cut slice is flat, but the blade is not necessarily two-dimensional. The inventor produced a slicer with a three-dimensional spiral curved blade having both a thickness positioning function and a cutting function, and applied to the China Intellectual Property Office on May 11, 2001. Patented. Authorized on February 6, 2002, patent number ZL01223361. 7. However, what ZL01223361.7 proposed in the patent document is only an individual scheme for slicing the three-dimensional spiral curve blade, limiting the characteristics of the three-dimensional slicing blade to the "slicing of a concentric metal disc from the edge according to the spiral curve converging to the center of the circle." A strip-shaped spiral made by cutting inward, with the inner edge being the inscribed arc and the outer edge being the circumscribed arc. This strip-shaped spiral rotates up or down around its longitudinal axis to maintain adjacent There is a constant vertical distance between the edges of the blade surface. "With this definition, only flat blades with a busbar parallel to the horizontal plane can be designed and manufactured. Summary of the Invention

The content of this application is to propose a slicing knife with a three-dimensional spiral curve blade having different characteristics from the patent of ZL01223361. 7, that is, a slicing knife with a tapered and cylindrical three-dimensional spiral curve blade.

The three-dimensional spiral curve cutting blade has the following characteristics: 1. The blade surface is formed by two moving points connected to the longitudinal axis at an arbitrary angle between 0-90 degrees. The segment is the generatrix and continuously rotates around the longitudinal axis. The three-dimensional band-shaped spiral formed; 2. The edge of the blade surface made according to the trajectory of the first one of the two moving points in the three-dimensional space contains two vector components; one vector component is the cut vector. It has a fixed starting point selected according to design specifications on the (virtual) carrier plane formed by the generatrix and the longitudinal axis, and its direction is consistent with the generatrix, and its length is a monotonic function of the rotation angle of the carrier plane about the longitudinal axis. The other vector component is the thickness vector. The starting point is the end point of the drawn vector. Its direction is perpendicular to the drawn vector (up or down). Its length is proportional to the rotation angle of the carrier plane about the vertical axis. 3. The direction of the second edge of the blade surface made according to the trajectory of the second moving point in the three-dimensional space also contains two vector components, but the length of the cut vector is longer than that of the first edge. Except for one cycle of lag, everything else is exactly the same as the first edge. BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1, A (Ψ) is A. The lapping vector is the starting point. Β (ψ) is the thickness vector perpendicular to Α (Ψ). The angle between Α (Ψ) and the vertical axis is (1. The rotation angle of the carrier plane is Ψ. Example 1

Choose a monotonic function between the length of A (Ψ) and Ψ as a logarithmic function. At this time, the mathematical expressions of the two edges of the blade surface are:

po + pa (ς ^ψ2π -1) sina (+) k / 27icosa

Person) 1ίψ / 2π3ίηα

ρ ₂ = ρ. + ρ ₈ ^ψ2π-1 -1) sina-k / 2 cosa

Z ₂ = Z ₀ + p _a (q ^ -'- l) cosa-k / 2 sina

In the formula:

pi, Zi-the polar coordinate radius and height of the first edge.

p ₂ , Z ₂ -the polar coordinate radius and height of the second edge.

p. , Z. The starting coordinates of the lachance vector.

_P a-the initial radius of the logarithmic spiral.

q——the growth coefficient of the logarithmic spiral.

K——Slice thickness.

(+), (Soil)-use +,-for downward direction of thickness vector.

Figure 2 is the blade surface pattern when 3, α = 45 degrees and the thickness vector is upward. Embodiment 2

Select the length of Α (ψ) as the logarithmic function of Ψ, and take c = 0. At this time, the mathematical expression of the blade surface is:

Z: = Z „+ p _a (ς ^{ψ / 2π} -1)

Z ₂ = Zo + pJqHl)

Figure 3 is the blade surface pattern when oc = 0, q = 1.3, (soil) +.

Figure 4 is the blade surface pattern when α is close to 90 °, q = 1.3, (soil) takes +. Cone and cylindrical 3D helical curved blades can be used on any of the two cutting edge edges. On the outwardly protruding edge, a single edge on the inner surface; on the outwardly protruding edge, a single edge on the outer surface. The cut is placed on the side that protrudes and sharpens. The three-dimensional spiral curve cutting blade, whether it is conical, cylindrical or flat, The common advantages conferred by its shared cutting principle are:

1. The step and continuity of the blade surface and the blade edge make the cutting object be rotated by multiple blades at the same time as soon as it touches the blade surface (for example, by the gravity of the cutting object itself). The cut is consistent with the cross-section of the object Full flakes. It overcomes the problem of pressing the soft cut object both on the slide and on the slide. It is only necessary to limit the conveyance of the cut object with the knife. Although the blade body is more complex than a conventional circular disc knife, the whole microtome is simplified and small.

2. The helicality of the cutting edge makes it possible to greatly lengthen the cutting edge in a limited space, and to cut at a large (up to 30 times) cutting ratio. Especially when the length of A (Ψ) changes according to the law of logarithmic spiral, the draw ratio of each point on the blade is equal. This makes cutting soft food a reality. A slicer with a tapered three-dimensional spiral curve blade can make a smaller machine (than a flat slicer). The outstanding advantage of the cylindrical 3D helical curved blade is that when using a logarithmic spiral edge, both edges of the flat plan view of the blade surface are straight. Save material, easy to cut, simple cutting and convenient grinding. The overall size is the smallest.

Claims

The claim, a sliced knife with a tapered three-dimensional spiral curve blade, characterized in that: 1 The cutting surface is a line segment which is connected by two moving points and maintains an arbitrary angle with the vertical axis as the busbar continuously rotates around the vertical axis. A three-dimensional ribbon spiral; 2 The edge of the blade surface made according to the trajectory of one of the moving points in the three-dimensional space contains two vector components: A vector component is a cut vector, which is formed on the generatrix and the vertical axis. The carrier (virtual) plane has a fixed starting point selected according to design specifications, whose direction is consistent with the generatrix, and its length is a monotonic function of the rotation angle of the carrier plane about the longitudinal axis; the other vector component is the thickness vector, and its starting point is The end point of the cut vector, its direction is perpendicular to the cut vector, and its length is proportional to the rotation angle of the carrier plane about the longitudinal axis; 3 The second edge of the blade surface made according to the trajectory of the second moving point is in three-dimensional space , Except that the length of the lapping vector is one cycle behind the lapping vector contained in the first edge, it is exactly the same as the first edge; The slicing knife of the tapered three-dimensional spiral curve blade according to claim 1, characterized in that: the monotonic function between the length of the cut vector and the rotation angle of the carrier plane about the longitudinal axis is a logarithmic spiral function; The above-mentioned tapered three-dimensional spiral curve slicing knife is characterized in that the angle between the generatrix and the axis is zero degrees, that is, the generatrix is parallel to the longitudinal axis, and the blade surface is cylindrical.