CN113001595A - Tool with willow-leaf-shaped blade and preparation method thereof - Google Patents
Tool with willow-leaf-shaped blade and preparation method thereof Download PDFInfo
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- CN113001595A CN113001595A CN202110153589.9A CN202110153589A CN113001595A CN 113001595 A CN113001595 A CN 113001595A CN 202110153589 A CN202110153589 A CN 202110153589A CN 113001595 A CN113001595 A CN 113001595A
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- cutter
- blade
- willow
- leaf
- wheel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B9/00—Blades for hand knives
- B26B9/02—Blades for hand knives characterised by the shape of the cutting edge, e.g. wavy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
- B24B3/54—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a willow leaf type cutter and a preparation method thereof, the willow leaf type cutter comprises a cutter body and a cutter edge, two side surfaces of the cutter body are symmetrically in a Bessel curve shape from the top end of the cutter body to the tail end of the cutter edge along the height direction of the cutter body, and the Bessel curve formula is B (t) -P0(1‑t)3+3P1t(1‑t)2+3P2t2(1‑t)+P3t3，t∈[0，1]. According to the invention, through setting of the willow leaf edging machine and the Bezier curve formula, the formed pure circular arc of the blade part has no obvious blade line, the two side surfaces of the blade body of the manufactured cutter are symmetrically shaped in a Bezier curve shape from the top end of the blade body to the tail end of the blade along the height direction, the whole blade is pure circular arc and has no blade line, the blade body forms smooth transition to the blade part, the cutting resistance of the cutter in the cutting process is reduced, the quality stability is high, and the sharpness and the durability are greatly improved.
Description
Technical Field
The invention relates to the field of kitchen utensils, in particular to a cutter with a willow leaf-shaped cutter edge and a preparation method thereof.
Background
With the improvement of living standard of people, the cutting hand feeling and the good customer experience are pursued in the process of using the kitchen cutter, and the cutter is required to have good initial sharpness and lasting sharpness. The physical definition of knife sharpness is the pressure of the kitchen knife on the substrate, the micro mechanism of cutting food is the destruction of covalent bonds of food organics, and the force required includes two aspects: the force of the first aspect is a resistance against deformation or destruction of the organic matter of the food; the force of the second aspect is a frictional resistance. Initial sharpness may be defined as the ability to overcome the resistance of food organisms to deformation or destruction to invade the food organisms. Sharpness longevity may be defined as the resistance to deformation or destruction against food organisms, as well as the ability of frictional resistance to continue to invade food organisms. The resistance to deformation or destruction is related to the mechanical properties of the food organism, the penetration angle, the area of the active surface (edge thickness) (P ═ F/S), and overcoming the frictional resistance requires a smoother surface of the edge. The existing knife edge in the industrialized production knife uses abrasive belt or edge grinding wheel machine manually to grind and remove material at the edge, the edge is a regular slope, has obvious measurable angle and width and obvious edge line, and the two sides of the edge surface are rough to reduce the initial sharpness and lasting sharpness, if the edge line is eliminated and the roughness of the edge surface is repaired, the later manual grinding treatment is needed, the process is complex, and meanwhile, because the manual operation is easy to fatigue of operators, the sharpness is unstable; the manipulator is adopted to replace manual operation, and is limited by the width, length and thickness of the cutter, and the manipulator cannot be operated when exceeding the specified range, so that the production of products is limited.
In the prior art, a general cutter is structured as shown in fig. 1, the height direction of the cutter is along the top of the cutter to the cutter edge, the upper end part is in a vertical state, the lower end part is in an oblique line to form the cutter edge, the thickness of the cutter edge is large, and although the strength is good, the cutter has the problem that the sharpness of the cutter is not enough due to obvious edge lines.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the cutter with the willow leaf type cutting edge and the preparation method thereof, overcomes the technical defects of obvious edge lines and rough cutting edge surface in the existing cutter preparation method, and improves the sharpness and durability of the cutter product.
The purpose of the invention is realized by the following technical scheme: the utility model provides a cutter of willow leaf type sword, includes blade and cutting edge, blade both sides face is the shape of Bessel curve along its direction of height from the blade top to the cutting edge tip is symmetrical, the Bessel curve formula is B (t) P0(1-t)3+3P1t (1-t)2+3P2t2(1-t) + P3t3, t belongs to [0, 1 ].
The invention provides a cutter with a willow leaf type cutting edge, wherein two side faces of a cutter body are symmetrically in a Bessel curve shape from the top end of the cutter body to the tail end of the cutter body along the height direction of the cutter body, the whole cutter edge is pure in an arc shape and has no edge line, the cutter body forms a smooth transition to the cutter edge part, the cutting resistance of the cutter in the cutting process is reduced, and the quality stability is high.
The invention also provides a preparation method of the willow leaf edging cutter, which comprises the following steps:
s1, determining the shape of the cutter according to a Bezier curve formula;
s2, processing and forming through a willow leaf edging machine;
s3, performing surface polishing treatment on the edged cutter;
and S4, performing slope peak removing treatment on the polished cutter.
Further, the willow leaf edging machine in step S2 includes a machine body, a workpiece clamping mechanism for fixing the cutting tool, an edging wheel, a first driving mechanism for driving the edging wheel to rotate, and a numerical control mechanism, wherein the machine body is provided with a cooling mechanism corresponding to the edging wheel, the workpiece clamping mechanism is connected to a second driving mechanism for driving the cutting tool to move toward or away from the edging wheel, the cooling mechanism is disposed above a position corresponding to the edging wheel for cooling the cutting tool and the edging wheel, the cooling mechanism includes a pipeline and a spray header, and the numerical control mechanism is connected to the edging wheel.
Further, the first driving mechanism comprises a driving motor and a rotating shaft connected with the driving motor, and the rotating shaft is connected with the sharpening wheel; the second driving mechanism comprises a base and a guide rail arranged on the machine body, the tool clamping mechanism is fixed on the machine body through the base, and the base is connected with the guide rail in a sliding mode.
Furthermore, the machine body is also provided with a protective cover covering the sharpening wheel, and one side of the protective cover is provided with a polishing opening for the cutter to enter the sharpening wheel.
Further, cooling body holds the chamber including seting up the coolant liquid in the protection casing, the protection casing towards the edging wheel direction be equipped with a plurality of with the coolant liquid holds the delivery port that the chamber communicates, the protection casing other end is equipped with the water inlet, water inlet and coolant liquid hold the chamber intercommunication.
Further, the step S2 is specifically: and fixing a cutter on a workpiece clamping mechanism, wherein the workpiece clamping mechanism drives the cutter to approach the sharpening wheel under the action of a second driving mechanism, and then the sharpening wheel with the Shore hardness A of 75-85 degrees and the granularity of 300-.
Further, before the processing and forming of the willow leaf edging machine, the cutter blank is pretreated, wherein the pretreatment comprises the steps of putting the cutter into a special water mill for inclined grinding, removing a surface oxidation layer and then carrying out flat grinding.
Further, in step S3, the blade is polished by a water mill.
Further, in the step S4, the blade is subjected to a peak removal process by using a thousand-blade wheel.
According to the scheme, the invention has the following beneficial effects: according to the preparation method of the willow leaf edging cutter, the blade part formed by the willow leaf edging machine is pure circular arc without obvious blade lines through setting of a Bessel curve formula, and the sharpness and the durability of the prepared cutter are greatly improved through the preparation method.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a cross-sectional view of a prior art tool.
FIG. 2 is a schematic view of a structure of a lancet of a willow-leaf-type blade according to the present invention.
FIG. 3 is a flow chart of a method for manufacturing a blade of a willow leaf type blade according to the present invention.
FIG. 4 is a schematic view of the structure of the willow leaf edging machine provided by the present invention.
Fig. 5 is a schematic structural diagram of the protective cover provided by the invention.
Fig. 6 is a cross-sectional view of a shield provided by the present invention.
Wherein the reference numbers are as follows:
1. a body; 2. a cutter; 3. a workpiece clamping mechanism; 4. a sharpening wheel; 5. a drive motor; 6. a rotating shaft; 7. a base; 8. a protective cover; 9. a cooling mechanism; 80. grinding a port; 90. a coolant containment chamber; 91. a water outlet; 92. a water inlet.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 2, the lancet of the present embodiment includes a blade and a blade, wherein two side surfaces of the blade are symmetrically shaped like a bezier curve from a top end of the blade to a tip end of the blade along a height direction of the blade, and the bezier curve has a formula of b (t) ═ P0(1-t)3+3P1t(1-t)2+3P2t2(1-t)+P3t3，t∈[0，1]。
Example 2
As shown in fig. 3, a method for manufacturing a blade of a willow leaf blade includes the following steps:
s1, determining the shape of the cutter according to a Bezier curve formula;
the Bezier curve formula is B (t) ═ P0(1-t)3+3P1t(1-t)2+3P2t2(1-t)+P3t3，t∈[0，1]。
S2, processing and forming through a willow leaf edging machine;
s3, performing surface polishing treatment on the edged cutter;
and polishing the blade by a water mill.
S4, carrying out slope peak removing treatment on the polished cutter;
and (5) removing the slope peak of the blade by adopting a thousand-blade wheel.
As shown in fig. 4 to 6, the willow leaf edging machine in the step S2 includes a machine body 1, a workpiece clamping mechanism 3 for fixing a cutter 2, an edging wheel 4, a first driving mechanism for driving the edging wheel 4 to rotate, and a numerical control mechanism, wherein the first driving mechanism includes a driving motor 5 and a rotating shaft 6 connected to the driving motor 5, the rotating shaft 6 is connected to the edging wheel 4, a cooling mechanism 9 corresponding to the edging wheel 4 is provided on the machine body 1, a second driving mechanism is connected to the workpiece clamping mechanism 3 for driving the cutter to move toward or away from the edging wheel, the second driving mechanism includes a base 7 and a guide rail, the workpiece clamping mechanism 3 is fixed to the machine body 1 through the base 7, and the base 7 is slidably connected to the guide rail; the cooling mechanism is arranged above the corresponding position of the sharpening wheel and is used for cooling the cutter 2 and the sharpening wheel 4; the numerical control mechanism is connected with the sharpening wheel 4, and in the process of carrying out cutting edge treatment on the cutter 2, the numerical control mechanism is used for controlling parameters such as the angle, the rotating speed and the feeding amount of the sharpening wheel 4, for example, the numerical control mechanism adopts a Siemens system, and the moving speed of the sharpening wheel 4 and the rotating speed of the sharpening wheel 4 are controlled through a synchronous servo motor.
Further, as shown in fig. 5, a protective cover 8 covering the sharpening wheel 4 is further disposed on the machine body, and a polishing opening 80 for the cutter 2 to enter the sharpening wheel 4 is disposed on one side of the protective cover 8.
Furthermore, as shown in fig. 6, the cooling mechanism 9 includes a cooling liquid containing cavity 90 disposed in the protecting cover 8, the protecting cover 8 is provided with a plurality of water outlets 91 communicating with the cooling liquid containing cavity 90 toward the sharpening wheel 4, and the other end of the protecting cover 8 is provided with a water inlet 92 communicating with the cooling liquid containing cavity 90.
As a preferred embodiment, the step S2 is specifically: fixing the cutter 2 on the workpiece clamping mechanism 3, driving the cutter 2 to be close to the sharpening wheel 4 by the workpiece clamping mechanism 3 under the action of the second driving mechanism, then adopting the sharpening wheel 4 with Shore hardness A of 75-85 degrees and granularity of 300-340#, and controlling the sharpening wheel 4 through a numerical control mechanism, so that the sharpening wheel 4 is mutually matched under the conditions that the angle is 8-11 degrees, the rotating speed is 2600-3000 r/min and the feeding amount is 0.04-0.06mm/r, and sharpening the cutter to form the cutter 2 with a Bessel curve shape. Preferably, the sharpening wheel 4 has a shore a hardness of 80 degrees, a grain size of 320#, an angle of 10 degrees of the sharpening wheel 4, a rotation speed of 2800 revolutions per minute and a feed of 0.5 mm/r.
As a preferred embodiment, before the processing and forming through the willow leaf edging machine, the cutter blank is pretreated, wherein the pretreatment comprises the steps of obliquely grinding the cutter, removing a surface oxide layer, and then flatly grinding the cutter, and specifically, the pretreatment comprises the steps of obliquely grinding the cutter in a special water mill, removing the surface oxide layer, and then flatly grinding the cutter.
Test results and analysis
The tool obtained in example 2 was subjected to a performance test to examine the initial sharpness, the lasting sharpness, and the edge thickness of the tool, and the results are shown in table 1:
testing the sharpness of the cutting edge: adopting British cata test special paper and a CATRA sharpness tester to test the environmental temperature: 18-26 ℃, ambient humidity: 50% -80%;
the detection process is as follows:
1) the cutter is fixed on the device straightly;
2) adjusting the safety test height;
3) selecting corresponding cycle times for testing;
4) and (5) recording the test data of each time after each test is finished.
Testing the thickness of the cutting edge: adopting a micrometer and a caliper with a meter to test the environmental temperature: 18-26 ℃, ambient humidity: 50% -80%; the position of the sample cutting edge thickness measurement is as follows: respectively measuring the positions 1mm, 3mm, 5mm and 10mm away from the cutting edge;
the detection process is as follows:
1) measuring the thickness of the cutting edge at the cutting edge position by using a special micrometer, wherein the measuring distance is that the length of the cutter is divided into 4 parts, and the distance is one fourth (1 point), one half (2 points) and three quarters (3 points) from the cutter shoe;
2) the position of the sample cutting edge thickness measurement is as follows: measured at positions 1mm, 3mm, 5mm, 10mm from the cutting edge.
Table 2 shows the sharpness test criteria
As can be seen from tables 1 and 2, the cutter prepared by the method is subjected to eight cycle tests, and the eight test results all show that the sharpness grade of the cutter is excellent.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a cutter of willow leaf type sword, includes blade and cutting edge, its characterized in that: the two side surfaces of the knife body are symmetrically shaped like a Bezier curve from the top end of the knife body to the tail end of the knife edge along the height direction of the knife body, and the formula of the Bezier curve is B (t) -P0(1-t)3+3P1t(1-t)2+3P2t2(1-t)+P3t3，t∈[0，1]。
2. A method of making the lancet of claim 1, comprising: the method comprises the following steps:
s1, determining the shape of the cutter according to a Bezier curve formula;
s2, processing and forming through a willow leaf edging machine;
s3, performing surface polishing treatment on the edged cutter;
and S4, performing slope peak removing treatment on the polished cutter.
3. The method of manufacturing a lancet of a willow-leaf-type blade according to claim 2, wherein: the willow leaf edging machine in the step S2 comprises a machine body, a workpiece clamping mechanism for fixing a cutter, an edging wheel, a first driving mechanism for driving the edging wheel to rotate and a numerical control mechanism, wherein the machine body is provided with a cooling mechanism corresponding to the edging wheel, the workpiece clamping mechanism is connected with a second driving mechanism for driving the cutter to move towards or away from the edging wheel, the cooling mechanism is arranged above the corresponding position of the edging wheel and used for cooling the cutter and the edging wheel, and the numerical control mechanism is connected with the edging wheel.
4. The method for preparing a lancet blade for a willow-leaf type blade according to claim 3, wherein: the first driving mechanism comprises a driving motor and a rotating shaft connected with the driving motor, and the rotating shaft is connected with the sharpening wheel; the second driving mechanism comprises a base and a guide rail arranged on the machine body, the tool clamping mechanism is fixed on the machine body through the base, and the base is connected with the guide rail in a sliding mode.
5. The method for preparing a lancet blade for a willow-leaf type blade according to claim 4, wherein: the machine body is also provided with a protective cover covering the sharpening wheel, and one side of the protective cover is provided with a polishing opening for the cutter to enter the sharpening wheel.
6. The method for preparing a lancet blade for a willow-leaf type blade according to claim 5, wherein: the cooling mechanism comprises a cooling liquid containing cavity arranged in the protective cover, the protective cover is provided with a plurality of water outlets communicated with the cooling liquid containing cavity towards the direction of the sharpening wheel, the other end of the protective cover is provided with a water inlet, and the water inlet is communicated with the cooling liquid containing cavity.
7. The method for manufacturing a lancet of a willow-leaf blade according to claim 3, characterized in that: the step S2 specifically includes: and fixing a cutter on a workpiece clamping mechanism, wherein the workpiece clamping mechanism drives the cutter to approach the sharpening wheel under the action of a second driving mechanism, and then the sharpening wheel with the Shore hardness A of 75-85 degrees and the granularity of 300-.
8. The method of manufacturing a lancet of a willow-leaf-type blade according to claim 2, wherein: the method comprises the steps of preprocessing a cutter blank before processing and forming through a willow leaf edging machine, wherein the preprocessing comprises the steps of putting a cutter into a special water mill for inclined grinding, removing a surface oxidation layer and then carrying out flat grinding.
9. The method of manufacturing a lancet of a willow-leaf-type blade according to claim 2, wherein: and step S3, polishing the blade by a water mill.
10. The method of manufacturing a lancet of a willow-leaf-type blade according to claim 2, wherein: and step S4, the blade is subjected to peak slope removal by using a thousand-blade wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153589.9A CN113001595B (en) | 2021-02-04 | 2021-02-04 | Method for manufacturing willow leaf type blade cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153589.9A CN113001595B (en) | 2021-02-04 | 2021-02-04 | Method for manufacturing willow leaf type blade cutter |
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| CN113001595A true CN113001595A (en) | 2021-06-22 |
| CN113001595B CN113001595B (en) | 2022-10-11 |
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| CN208584050U (en) * | 2018-07-12 | 2019-03-08 | 江苏哈德机电科技有限公司 | A kind of diamond saw blade processing saw blade blade grinding machine |
| CN110238715A (en) * | 2019-04-30 | 2019-09-17 | 镇江市永益工具有限公司 | A kind of dedicated milling drum of ultrahigh hardness drill bit processing |
| CN211916369U (en) * | 2020-04-22 | 2020-11-13 | 江西超联光电科技有限公司 | Vertical grinder for grinding water-soluble crystal lens |
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| US2674068A (en) * | 1949-08-20 | 1954-04-06 | American Optical Corp | Bevel edging machine |
| US2708331A (en) * | 1953-04-06 | 1955-05-17 | Harry W Mitchler | Device for cooling spectacle lenses subjected to the action of a bevel edging machine |
| CN201592375U (en) * | 2009-11-24 | 2010-09-29 | 陈小凡 | Novel clamping mechanism and intelligent copying four-axis numerical control edging machine |
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| Publication number | Publication date |
|---|---|
| CN113001595B (en) | 2022-10-11 |
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