CN113305523A - Production method of 300 series stainless steel kitchen cutter - Google Patents
Production method of 300 series stainless steel kitchen cutter Download PDFInfo
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- CN113305523A CN113305523A CN202010644928.9A CN202010644928A CN113305523A CN 113305523 A CN113305523 A CN 113305523A CN 202010644928 A CN202010644928 A CN 202010644928A CN 113305523 A CN113305523 A CN 113305523A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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Abstract
The invention provides a production method of a 300 series stainless steel kitchen cutter, which comprises the following steps: providing an initial cutter body and an initial cutter handle; hardening the cutting edge part of the initial cutter body by adopting high-temperature fusion, seamless welding or high-temperature forging; welding the primary shank and the primary cutter body together to form a primary cutter; polishing and finishing the tool shank of the initial tool; grinding the end face of the cutter body of the initial cutter by using water grinding equipment; polishing the tool shank and the tool body of the initial tool; edging the polished initial cutter; and cleaning and oil immersion processing are carried out on the initial cutter after the edging processing to form a final cutter. According to the invention, the cutting edge part of the initial cutter body is hardened by adopting high-temperature fusion, seamless welding or high-temperature forging, so that the hardness and the wear resistance of the cutting edge part of the manufactured cutter are enhanced, and the manufactured cutter can be kept sharp for a long time.
Description
Technical Field
The invention relates to the technical field of cutter production and processing, in particular to a production method of a 300 series stainless steel kitchen cutter.
Background
The knife is an indispensable tool in all walks of life and people's lives, such as a knife for a book trimmer, a knife for cutting leather clothing, a military knife, a kitchen knife, a table knife, a fruit knife and the like. The kitchen knife is necessary for people in daily life, and the knife is required to be used in daily cooking. The cutter that supplies on the existing market ubiquitous blade hardness is not high, not durable scheduling problem, needs often sharpen a knife. The problem of the lasting sharpness of the tool becomes a key technical problem in the field.
Disclosure of Invention
The invention aims to provide a production method of a 300 series stainless steel kitchen cutter, which can solve the problems of low hardness and low durability of a cutting edge of the existing cutter.
In order to solve the technical problem, the invention provides a production method of a 300 series stainless steel kitchen cutter, which comprises the following steps:
providing an initial cutter body and an initial cutter handle, wherein the initial cutter body is made of 300 series stainless steel;
hardening the cutting edge part of the initial cutter body by adopting high-temperature fusion, seamless welding or high-temperature forging;
welding the primary shank and the hardened primary cutter body together to form a primary cutter;
polishing and trimming the tool shank of the initial tool;
grinding the end face of the initial cutter body after the cutter handle is polished and trimmed by using water grinding equipment, wherein the water grinding equipment comprises a water grinding grinder, a vacuum adsorption fixture and an equipment sliding table, and the vacuum adsorption fixture is arranged on the equipment sliding table;
polishing the tool handle and the tool body of the initial tool after the tool body is subjected to end face grinding;
performing edging treatment on the initial cutter with the cutter body and the cutter handle polished; and
and cleaning and oil immersion processing are carried out on the initial cutter after the edging processing to form a final cutter.
The invention has the beneficial effects that: according to the production method of the kitchen cutter, the cutting edge part of the initial cutter body is hardened by adopting high-temperature fusion, seamless welding or high-temperature forging, so that the hardness and the wear resistance of the cutting edge part of the manufactured cutter are enhanced, and the manufactured cutter can be kept sharp for a long time. In addition, the end face grinding is carried out on the cutter body of the initial cutter after the grinding and trimming of the cutter handle by adopting the water grinding equipment with the vacuum adsorption clamp, so that the cutter body of the initial cutter can be firmly fixed on the vacuum adsorption clamp under the action of vacuum adsorption force, the grinding of the initial cutter made of 300 series stainless steel can be conveniently finished, the technical problem of the water grinding of the cutter face of weak magnetic or non-magnetic cutters made of stainless steel and the like is solved, and the batch production of the cutter made of stainless steel is realized.
Optionally, the method for hardening the cutting edge portion of the primary cutter body by high-temperature fusion includes: and cladding a cladding layer formed by wear-resistant hard alloy mixed powder at the cutting edge of the initial cutter body by a high-temperature fusion process, wherein the hard alloy mixed powder is formed by mixing nickel-based alloy powder and tungsten carbide powder in proportion, the mass percent of the nickel-based alloy powder is 25-85%, and the mass percent of the tungsten carbide powder is 15-75%. According to the invention, a cladding layer is cladded on the cutting edge part of the initial cutter body by adopting a high-temperature fusion technology, so that the cladding layer and the initial cutter body can achieve good metallurgical bonding, the cladding layer is fine and uniform in structure, and the dilution rate is low. In addition, the hard alloy mixed powder used by the invention is prepared by mixing the nickel-based alloy powder and the tungsten carbide powder in proportion, so that the cost is lower, and the toughness of the hard alloy mixed powder can not be reduced while the hardness of the cutting edge part is improved.
Optionally, a protruding block is arranged at the cutting edge of the primary cutter body, and a plurality of first pin holes are formed in the protruding block;
the production method further comprises: providing a cutting edge and a plurality of pins matched with the first pin holes, wherein the cutting edge is made of alloy steel, one end of the cutting edge, close to the initial cutter body, is provided with a groove matched with the bump, and the outside of the groove is provided with a plurality of second pin holes corresponding to the first pin holes;
the method for hardening the cutting edge part of the primary cutter body by adopting high-temperature forging comprises the following steps:
heating the lug and the pin to a first temperature and the blade to a second temperature;
inserting the heated protrusion into the heated groove of the blade, and inserting the heated pin into the first pin hole and the second pin hole to assemble the primary cutter body and the blade; and
and forging the assembled initial cutter body and the assembled cutting edge.
Therefore, the convex block, the cutting edge and the pin of the cutting edge part of the initial cutter body are heated, then the convex block is inserted into the groove and is assembled and connected through the pin, and finally the assembled initial cutter body and the cutting edge are placed into a forging machine for high-temperature forging, so that the cutting edge is firmly fixed on the cutting edge part of the initial cutter body, the hardening treatment of the cutting edge part of the initial cutter body is completed, and the hardness of the cutting edge part of the finally manufactured cutter is improved.
Optionally, the thickness of the initial cutter body is 3mm, the thickness of the bump is 1mm, the width of the bump is 5mm, and the width of the cutting edge is 10 mm. Thus, the hardness of the edge portion of the finally manufactured tool can be further enhanced.
Optionally, the first temperature is 1000 ℃, and the second temperature is 1000 ℃ to 1300 ℃. Specifically, the bump and the pin can be heated to 1000 ℃ by laser, the blade can be heated to 1000-1300 ℃, and the specific value of the second temperature can be set according to the specific material of the blade.
Optionally, two sides of the cutting edge portion of the primary cutter body are both provided with first inclined surfaces, the bottom of the cutting edge portion of the primary cutter body is provided with a first plane, and the first plane is arranged between the two first inclined surfaces;
the production method further comprises: providing a cutting edge, wherein the cutting edge is made of alloy steel, one end of the cutting edge, close to the initial cutter body, is provided with a second inclined surface corresponding to the first inclined surface and a second plane corresponding to the first plane, and the second plane is arranged between the two second inclined surfaces;
the method for hardening the cutting edge part of the primary cutter body by adopting seamless welding comprises the following steps:
aligning and splicing the initial cutter body and the cutting edge;
fixing the splicing part by adopting spot welding; and
and carrying out seamless welding on the joint of the fixed initial cutter body and the cutting edge.
Specifically, a special fixture may be used to align and splice the primary cutter body and the cutting edge, and after the spliced portion of the primary cutter body and the cutting edge is fixed by spot welding, the primary cutter body and the cutting edge are placed in a seam-less welding machine to perform double-sided seamless welding, so that the cutting edge can be firmly fixed to the cutting edge portion of the primary cutter body to complete hardening of the cutting edge portion of the primary cutter body, thereby enhancing the hardness of the cutting edge portion of the finally manufactured cutter. In addition, the first plane is reserved at the bottom of the cutting edge part of the initial cutter body, and the second plane is reserved at one end, close to the initial cutter body, of the cutting edge, so that the first plane and the second plane can be used as allowance of a welding pool, and defective products caused by the welding penetration phenomenon can be effectively prevented.
Optionally, the inclination angles of the first inclined plane and the second inclined plane are both 45 °, the thicknesses of the first plane and the second plane are both 1mm, the thickness of the initial cutter body is 3mm, and the width of the cutting edge is 5 mm. Therefore, the initial cutter body and the cutting edge can be aligned and spliced more conveniently by setting the inclination angles of the first inclined surface and the second inclined surface to be 45 degrees. By setting the width of the blade to 5mm, the hardness of the blade portion of the finally manufactured cutter can be further enhanced.
Optionally, the initial blade body is obtained by the following steps:
punching to obtain a cutter blank; and
and calibrating and straightening the cutter blank to obtain an initial cutter body.
Therefore, the initial cutter body can keep good straightness and flatness by stamping a sheet metal material made of 300 series stainless steel to form a cutter blank with a required shape and then calibrating and straightening the cutter blank.
Optionally, before polishing the tool shank and the tool body of the initial tool after the tool body is subjected to end face grinding, the production method further includes mounting a handle sleeve on the tool shank of the initial tool after the tool body is subjected to end face grinding, and polishing and trimming the tool shank provided with the handle sleeve. Therefore, the handle sleeve is arranged on the handle of the initial cutter with the cutter body subjected to end face grinding, and the handle with the handle sleeve is polished and repaired, so that the finally formed cutter is more convenient to use.
Optionally, before polishing and trimming the tool shank with the handle sleeve, the production method further includes filling glue in a gap between the handle sleeve and the tool shank. Therefore, glue is filled in the gap between the handle sleeve and the handle, so that the handle sleeve and the handle are connected more stably.
Drawings
FIG. 1 is a flow chart of a method of manufacturing a 300 series stainless steel kitchen knife in accordance with one embodiment of the present invention;
FIG. 2 is a partial schematic view of the primary blade body and blade according to one embodiment of the present invention; '
Fig. 3 is a partial structural view of an initial cutter body and a cutter blade according to another embodiment of the present invention;
FIG. 4 is a schematic overall structure diagram of a water mill device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a partial structure of a water mill apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a vacuum suction jig according to an embodiment of the present invention.
Wherein the reference numbers are as follows:
an initial cutter body-1; a bump-11; a first pin hole-12; a blade-2; a groove-21; a second pin hole-22; a first bevel-13; a first plane-14; a second bevel-23; a second plane-24; a water grinding grinder-100; vacuum adsorption clamp-200; an equipment sliding table-300; adsorption hole-210; an air outlet-220; vacuum generating means-400; vacuum storage tank-410; -420 a vacuum compressor; a gas transmission pipeline-500; a cooling water storage tank-430; water conveying pipeline-600; waste water outlet-411; vacuum gauge-412; a positioning block-230; a fixed block-240; positioning columns-241; initial tool-700; cooling water spray head-110; a grinding wheel head-120.
Detailed Description
The method for producing the 300 series stainless steel kitchen knife according to the present invention will be described in further detail with reference to fig. 1 to 6 and the detailed description thereof. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The core idea of the invention is to provide a production method of a 300 series stainless steel kitchen cutter, which aims to solve the problems of low hardness and low durability of the cutting edge of the existing cutter.
In order to realize the idea, the invention provides a production method of a 300 series stainless steel kitchen cutter, which comprises the following steps:
step S1: the method comprises the steps of providing an initial cutter body and an initial cutter handle, wherein the initial cutter body is made of 300 series stainless steel.
Since the 300 series stainless steel has good corrosion resistance, the initial cutter body is made of the 300 series stainless steel, so that the finally processed cutter does not rust and grow bacteria in a damp environment of a kitchen.
Preferably, the initial blade body is obtained by:
punching to obtain a cutter blank; and
and calibrating and straightening the cutter blank to obtain an initial cutter body.
Therefore, the initial cutter body can keep good straightness and flatness by stamping a sheet metal material made of 300 series stainless steel to form a cutter blank with a required shape and then calibrating and straightening the cutter blank.
Step S2: and hardening the cutting edge part of the initial cutter body by adopting high-temperature fusion, seamless welding or high-temperature forging.
Preferably, the method for hardening the cutting edge portion of the primary cutter body by high temperature fusion comprises: and cladding a cladding layer formed by wear-resistant hard alloy mixed powder at the cutting edge of the initial cutter body by a high-temperature fusion process, wherein the hard alloy mixed powder is formed by mixing nickel-based alloy powder and tungsten carbide powder in proportion, the mass percent of the nickel-based alloy powder is 25-85%, and the mass percent of the tungsten carbide powder is 15-75%. According to the invention, a cladding layer is cladded on the cutting edge part of the initial cutter body by adopting a high-temperature fusion technology, so that the cladding layer and the initial cutter body can achieve good metallurgical bonding, the cladding layer is fine and uniform in structure, and the dilution rate is low. In addition, the hard alloy mixed powder used by the invention is prepared by mixing the nickel-based alloy powder and the tungsten carbide powder in proportion, so that the cost is lower, and the toughness of the hard alloy mixed powder can not be reduced while the hardness of the cutting edge part is improved.
Preferably, referring to fig. 2, which schematically shows a partial structural view of the primary cutter body and the cutting edge in an embodiment of the present invention, as shown in fig. 2, a protrusion 11 is disposed on the cutting edge portion of the primary cutter body 1, the thickness of the protrusion 11 is smaller than that of the primary cutter body 1, and a plurality of first pin holes 12 are disposed on the protrusion 11.
The production method further comprises: providing a cutting edge 2 and a plurality of pins matched with the first pin holes 12, wherein the cutting edge 2 is made of alloy steel, one end, close to the primary cutter body 1, of the cutting edge 2 is provided with a groove 21 matched with the bump 11, and a plurality of second pin holes 22 corresponding to the first pin holes 12 are formed in the outer portion of the groove 21.
The method for hardening the cutting edge part of the primary cutter body 1 by high-temperature forging comprises the following steps:
heating the lug 11 and the pin to a first temperature and the blade 2 to a second temperature;
inserting the projection 11 after the heat treatment into the groove 21 of the blade 2 after the heat treatment, and inserting the pin after the heat treatment into the first pin hole 12 and the second pin hole 22 to assemble the primary cutter body 1 and the blade 2 together; and
the assembled primary cutter body 1 and blade 2 are forged.
Therefore, the projection 11, the blade 2 and the pin of the cutting edge portion of the primary cutter body 1 are heated, the projection 11 is inserted into the groove 21 and assembled and connected by the pin, and finally the assembled primary cutter body 1 and the blade 2 are put into a forging machine for high-temperature forging, so that the blade 2 is firmly fixed to the cutting edge portion of the primary cutter body 1, the hardening treatment of the cutting edge portion of the primary cutter body 1 is completed, and the hardness of the cutting edge portion of the finally manufactured cutter is improved.
Preferably, the thickness of the primary cutter body 1 is 3mm, the thickness of the protrusion 11 is 1mm, the width of the protrusion 11 is 5mm, and the width of the cutting edge 2 is 10 mm. Thus, the hardness of the edge portion of the finally manufactured tool can be further enhanced.
Preferably, the first temperature is 1000 ℃, and the second temperature is 1000 ℃ to 1300 ℃. Specifically, the bump 11 and the pin may be heated to 1000 ℃ by laser, the blade 2 may be heated to 1000-1300 ℃, and the specific value of the second temperature may be set according to the specific material of the blade 2.
Preferably, referring to fig. 3, which schematically shows a partial structural view of the primary cutter body and the cutting edge in another embodiment of the present invention, as shown in fig. 3, first inclined surfaces 13 are disposed on both sides of the cutting edge portion of the primary cutter body 1, a first plane 14 is disposed at the bottom of the cutting edge portion of the primary cutter body 1, and the first plane 14 is disposed between the first inclined surfaces 13.
The production method further comprises: providing a cutting edge 2, wherein the cutting edge 2 is made of alloy steel, one end of the cutting edge 2, which is close to the primary cutter body 1, is provided with a second inclined surface 23 which corresponds to the first inclined surface 13 and a second plane 24 which corresponds to the first plane 14, and the second plane 24 is arranged between the two second inclined surfaces 23.
The method for hardening the cutting edge part of the primary cutter body 1 by seamless welding comprises the following steps:
aligning and splicing the primary cutter body 1 and the cutting edge 2;
fixing the splicing part by adopting spot welding; and
and carrying out seamless welding on the joint of the fixed initial cutter body 1 and the fixed cutting edge 2.
Specifically, a special jig may be used to align and splice the primary cutter body 1 and the blade 2, and after the spliced portion of the primary cutter body 1 and the blade 2 is fixed by spot welding, the primary cutter body 1 and the blade 2 are placed in a seamless welding machine to perform double-sided seamless welding, so that the blade 2 may be firmly fixed to the cutting edge portion of the primary cutter body 1 to complete the hardening process of the cutting edge portion of the primary cutter body 1, thereby enhancing the hardness of the cutting edge portion of the finally manufactured cutter. In addition, the first plane 14 is reserved at the bottom of the cutting edge part of the initial cutter body 1, and the second plane 24 is reserved at one end, close to the initial cutter body 1, of the cutting edge 2, so that the first plane 14 and the second plane 24 can be used as the allowance of a welding pool, and defective products caused by the welding penetration phenomenon can be effectively prevented.
Preferably, the inclination angles of the first inclined surface 13 and the second inclined surface 23 are both 45 °, the thicknesses of the first plane 14 and the second plane 24 are both 1mm, the thickness of the primary cutter body 1 is 3mm, and the width of the cutting edge 2 is 5 mm. Therefore, the initial blade body 1 and the cutting edge 2 can be aligned and spliced more conveniently by setting the inclination angles of the first inclined surface 13 and the second inclined surface 23 to 45 degrees. By setting the width of the blade 2 to 5mm, the hardness of the blade portion of the finally manufactured cutter can be further enhanced.
Step S3: welding the primary shank and the hardened primary cutter body together to form a primary cutter.
Specifically, the primary tool shank and the hardened primary tool body may be welded together by a welding machine.
Step S4: and grinding and finishing the tool shank of the initial tool.
Therefore, the tool shank of the initial tool has good straightness by grinding and finishing the tool shank of the initial tool.
Step S5: adopt the terrazzo equipment to the handle through polish after the repairment the cutter body of initial cutter carries out the end grinding, terrazzo equipment includes terrazzo grinding machine, vacuum adsorption anchor clamps and equipment slip table, vacuum adsorption anchor clamps install in on the equipment slip table.
In the step, the water milling equipment with the vacuum adsorption clamp is adopted to carry out end face grinding on the cutter body of the initial cutter after the cutter handle is polished and trimmed, so that the cutter body of the initial cutter can be firmly fixed on the vacuum adsorption clamp under the action of the vacuum adsorption force, further the polishing of the initial cutter made of 300 series stainless steel can be conveniently finished, and a good foundation is laid for the production and processing of the cutter made of the material.
Referring to fig. 4 and 5, fig. 4 schematically shows an overall structural schematic diagram of a water mill apparatus provided in an embodiment of the present invention, and fig. 5 schematically shows a partial structural schematic diagram of the water mill apparatus provided in an embodiment of the present invention. As shown in fig. 4 and 5, the equipment slide table 300 is located on one side of the water mill grinding machine 100, the vacuum adsorption jig 200 is installed on the equipment slide table 300, the vacuum adsorption jig 200 is close to the position of the water mill grinding machine 100, and the equipment slide table 300 can be close to and away from the water mill grinding machine 100. As shown in fig. 1, D1 indicates the moving direction of the watermill grinder 100, and D2 indicates the moving direction of the apparatus slide table 300.
The face grinding process of the body of the primary cutter 700 in the present invention includes: placing the initial tool 700 on a vacuum adsorption fixture 200, firmly fixing the initial tool 700 on the vacuum adsorption fixture 200 under the action of vacuum adsorption force, then starting the water mill grinding machine 100 and the equipment sliding table 300, starting the grinding wheel head 120 mounted on the water mill grinding machine 100 to rotate, moving the equipment sliding table 300 towards the direction close to the position of the grinding wheel head 120, and stopping moving after reaching the corresponding position (the position opposite to the grinding wheel head 120); the grinding wheel head 120 on the water mill grinding machine 100 moves towards the direction close to the position of the initial tool 700, stops moving after reaching the corresponding position (the position in contact with the initial tool 700), starts end face grinding, after the end face grinding is completed, the equipment sliding table 300 moves towards the direction far away from the position of the grinding wheel head 120, stops moving after reaching the corresponding position (the position staggered with the grinding wheel head 120), and moves towards the direction far away from the position of the initial tool 700, so that the end face grinding of the single side of the initial tool 700 is completed.
Referring to fig. 6, a schematic structural diagram of a vacuum adsorption jig 200 in a water mill apparatus according to an embodiment of the present invention is shown. Preferably, as shown in fig. 6, at least one adsorption hole 210 and at least one air outlet hole 220 are formed in the vacuum adsorption jig 200, the adsorption hole 210 is communicated with the air outlet hole 220 correspondingly formed in the adsorption hole 210, the adsorption hole 210 is located on one side of the vacuum adsorption jig 200 close to the water mill grinding machine 100, and the air outlet hole 220 is connected to the vacuum generating device 400 through an air transmission pipeline 500. The adsorption holes 210 are communicated with the air outlet holes 220 correspondingly arranged with the adsorption holes, and the air outlet holes 220 are connected with the vacuum generating device 400 through the air transmission pipeline 500, so that the whole structure of the vacuum adsorption fixture 200 can be simplified, and the initial cutter 700 made of 300 series stainless steel can be more conveniently and firmly fixed on the vacuum adsorption fixture 200 under the action of vacuum adsorption force.
Preferably, as shown in fig. 6, the air outlet 220 is disposed at the bottom of the vacuum suction jig 200. Therefore, the air outlet holes 220 are arranged at the bottom of the vacuum adsorption clamp 200, so that the arrangement of the air outlet holes 220 is more convenient, and the connection between the air outlet holes 220 and the vacuum generating device 400 is also more convenient.
Preferably, as shown in fig. 6, the air outlet 220 is disposed at the bottom of the vacuum suction jig 200. Therefore, the air outlet holes 220 are arranged at the bottom of the vacuum adsorption clamp 200, so that the arrangement of the air outlet holes 220 is more convenient, and the connection between the air outlet holes 220 and the vacuum generating device 400 is also more convenient.
Preferably, as shown in fig. 6, at least one positioning block 230 for fixing the body of the primary cutter 700 is disposed on a side of the vacuum suction jig 200 adjacent to the water mill grinding machine 100. Since the positioning block 230 is disposed on the vacuum adsorption jig 200, the preliminary cutter 700 can be fixed by the positioning block 230, thereby further improving the polishing effect of the preliminary cutter 700.
Preferably, as shown in fig. 6, a fixing block 240 corresponding to the shank of the preliminary cutter 700 is provided on one side of the vacuum suction jig 200 in the longitudinal direction thereof. Since the fixing block 240 is disposed on the vacuum adsorption jig 200, the shank of the initial tool 700 may be fixed to the fixing block 240, so that the polishing effect of the initial tool 700 may be further improved.
Preferably, as shown in fig. 6, at least one positioning column 241 for fixing the tool shank of the primary tool 700 is disposed on the fixing block 240. Therefore, by arranging at least one positioning column 241 on the fixing block 240, the tool shank of the initial tool 700 can be fixed on the positioning column 241, so that the initial tool 700 can be further stably fixed on the fixing block 240, and the polishing effect of the initial tool 700 is further improved.
Preferably, as shown in fig. 4, the vacuum generating device 400 includes a vacuum storage tank 410 and a vacuum compressor 420, wherein an air inlet of the vacuum storage tank 410 is connected to the air outlet 220 through an air pipeline 500, and an air outlet of the vacuum storage tank 410 is connected to the vacuum compressor 420. Because the vacuum generating device 400 includes the vacuum storage tank 410 and the vacuum compressor 420, the vacuum storage tank 410 has a certain vacuum degree, so that it can be ensured that the initial tool 700 is placed on the vacuum adsorption jig 200, the vacuum adsorption jig 200 can generate a vacuum adsorption force, so that the initial tool 700 can be firmly adsorbed on the vacuum adsorption jig 200 under the action of the vacuum adsorption force, and further, the polishing effect of the initial tool 700 is improved.
Preferably, as shown in fig. 4, the vacuum generating device 400 further includes a cooling water storage tank 430, and the cooling water storage tank 430 is connected to the vacuum compressor 420 through a water pipe 600. Since the vacuum generating apparatus 400 further includes a cooling water storage tank 430, cooling water can be supplied to the vacuum compressor 420 through the cooling water storage tank 430, so that heat generated during the operation of the vacuum compressor 420 can be cooled, and the service life of the vacuum compressor 420 can be prolonged.
Preferably, as shown in fig. 4, the bottom of the vacuum storage tank 410 may be provided with a waste water discharge port 411. Since the cooling water spray 110 mounted on the water grinding machine 100 sprays cooling water to the grinding wheel head 120 of the water grinding machine 100 during the water grinding process of the tool, part of the cooling water enters the vacuum storage tank 410 along with the gas transmission pipeline 500. Since the bottom of the vacuum storage tank 410 is provided with the waste water discharge port 411, the cooling water entering the vacuum storage tank 410 can be discharged through the waste water discharge port 411, thereby improving the stability of the water mill apparatus in the use process.
Preferably, as shown in fig. 4, the vacuum storage tank 410 may be provided with a vacuum gauge 412 at the top thereof. Since the vacuum gauge 412 is disposed on the top of the vacuum storage tank 410, the vacuum level inside the vacuum storage tank 410 can be monitored in real time by the vacuum gauge 412. In order to ensure that the preliminary cutter 700 can be firmly fixed to the vacuum chuck 200 by the vacuum suction force, the relative degree of vacuum in the vacuum storage tank 410 is 0.06MPa to 0.08 MPa.
Step S6: and polishing the tool handle and the tool body of the initial tool with the tool body subjected to end face grinding.
Specifically, in this step, the polishing machine may be used to polish the shank and the body of the primary tool after the tool body has been end-ground, and by polishing, the surface of the primary tool may be made smoother, effectively improving the surface quality thereof.
Preferably, before the step is performed, the production method further includes mounting a handle sleeve on the shank of the primary cutter after the cutter body is subjected to end face grinding, and polishing and trimming the shank with the handle sleeve. Therefore, the handle sleeve is arranged on the handle of the initial cutter with the cutter body subjected to end face grinding, and the handle with the handle sleeve is polished and repaired, so that the finally formed cutter is more convenient to use.
Preferably, before the grinding and trimming are performed on the tool shank provided with the handle sleeve, the production method further comprises the step of filling glue in a gap between the handle sleeve and the tool shank. Therefore, glue is filled in the gap between the handle sleeve and the handle, so that the handle sleeve and the handle are connected more stably.
Step S7: and performing edging treatment on the initial cutter with the polished cutter body and the polished cutter handle.
Specifically, in this step, the edge of the initial tool after polishing the tool body and the tool holder may be sharpened using a water mill sharpening machine, and the edge of the tool finally manufactured may be sharpened to a certain degree.
Step S8: and cleaning and oil immersion processing are carried out on the initial cutter after the edging processing to form a final cutter.
Therefore, the finally manufactured cutter is not easy to oxidize and rust in the storage process through the oil immersion treatment.
In summary, the kitchen knife production method provided by the invention is characterized in that the cutting edge of the initial knife body is hardened by high-temperature fusion, seamless welding or high-temperature forging, which is beneficial to enhancing the hardness and wear resistance of the cutting edge of the manufactured knife, so that the manufactured knife can be kept sharp for a long time. In addition, the end face grinding is carried out on the cutter body of the initial cutter after the grinding and trimming of the cutter handle by adopting the water grinding equipment with the vacuum adsorption clamp, so that the cutter body of the initial cutter can be firmly fixed on the vacuum adsorption clamp under the action of vacuum adsorption force, the grinding of the initial cutter made of 300 series stainless steel can be conveniently finished, the technical problem of the water grinding of the cutter face of weak magnetic or non-magnetic cutters made of stainless steel and the like is solved, and the batch production of the cutter made of stainless steel is realized.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims. It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method of producing a 300 series stainless steel kitchen knife, the method comprising:
providing an initial cutter body and an initial cutter handle, wherein the initial cutter body is made of 300 series stainless steel;
hardening the cutting edge part of the initial cutter body by adopting high-temperature fusion, seamless welding or high-temperature forging;
welding the primary shank and the hardened primary cutter body together to form a primary cutter;
polishing and trimming the tool shank of the initial tool;
grinding the end face of the initial cutter body after the cutter handle is polished and trimmed by using water grinding equipment, wherein the water grinding equipment comprises a water grinding grinder, a vacuum adsorption fixture and an equipment sliding table, and the vacuum adsorption fixture is arranged on the equipment sliding table;
polishing the tool handle and the tool body of the initial tool after the tool body is subjected to end face grinding;
performing edging treatment on the initial cutter with the cutter body and the cutter handle polished; and
and cleaning and oil immersion processing are carried out on the initial cutter after the edging processing to form a final cutter.
2. The method for producing kitchen knives according to claim 1, characterized in that the hardening of the cutting edge portion of the primary knife body by high temperature fusion comprises: and cladding a cladding layer formed by wear-resistant hard alloy mixed powder at the cutting edge of the initial cutter body by a high-temperature fusion process, wherein the hard alloy mixed powder is formed by mixing nickel-based alloy powder and tungsten carbide powder in proportion, the mass percent of the nickel-based alloy powder is 25-85%, and the mass percent of the tungsten carbide powder is 15-75%.
3. The method for producing kitchen knives according to claim 1, characterized in that the cutting edge of the primary knife body is provided with a projection, which is provided with a plurality of first pin holes;
the production method further comprises: providing a cutting edge and a plurality of pins matched with the first pin holes, wherein the cutting edge is made of alloy steel, one end of the cutting edge, close to the initial cutter body, is provided with a groove matched with the bump, and the outside of the groove is provided with a plurality of second pin holes corresponding to the first pin holes;
the method for hardening the cutting edge part of the primary cutter body by adopting high-temperature forging comprises the following steps:
heating the lug and the pin to a first temperature and the blade to a second temperature;
inserting the heated protrusion into the heated groove of the blade, and inserting the heated pin into the first pin hole and the second pin hole to assemble the primary cutter body and the blade; and
and forging the assembled initial cutter body and the assembled cutting edge.
4. A method of producing kitchen knives according to claim 3, characterized in that the thickness of the primary knife body is 3mm, the thickness of the projection is 1mm, the width of the projection is 5mm and the width of the blade is 10 mm.
5. A method of producing kitchen knives according to claim 3, characterized in that the first temperature is 1000 ℃ and the second temperature is 1000-1300 ℃.
6. The method for producing kitchen knives according to claim 1, characterized in that the initial knife body is provided with first inclined planes on both sides of the cutting edge portion, the bottom of the cutting edge portion is provided with a first plane, and the first plane is arranged between the first inclined planes;
the production method further comprises: providing a cutting edge, wherein the cutting edge is made of alloy steel, one end of the cutting edge, close to the initial cutter body, is provided with a second inclined surface corresponding to the first inclined surface and a second plane corresponding to the first plane, and the second plane is arranged between the two second inclined surfaces;
the method for hardening the cutting edge part of the primary cutter body by adopting seamless welding comprises the following steps:
aligning and splicing the initial cutter body and the cutting edge;
fixing the splicing part by adopting spot welding; and
and carrying out seamless welding on the joint of the fixed initial cutter body and the cutting edge.
7. The method for producing kitchen knives according to claim 6, characterized in that the first and second bevels are inclined at an angle of 45 °, the first and second planes are each 1mm thick, the initial knife body is 3mm thick and the cutting edge is 5mm wide.
8. Method for producing kitchen knives according to claim 1, characterized in that the primary knife body is obtained by the following steps:
punching to obtain a cutter blank; and
and calibrating and straightening the cutter blank to obtain an initial cutter body.
9. The method of claim 1, wherein the step of finishing the shank and body of the primary tool after the face grinding further comprises mounting a sleeve on the shank of the primary tool after the face grinding and dressing the shank with the sleeve.
10. The method of claim 9, further comprising filling a gap between the sleeve and the shank with glue prior to finishing the shank with the sleeve.
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| CN202010644928.9A CN113305523A (en) | 2020-07-07 | 2020-07-07 | Production method of 300 series stainless steel kitchen cutter |
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| CN202010644928.9A CN113305523A (en) | 2020-07-07 | 2020-07-07 | Production method of 300 series stainless steel kitchen cutter |
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Application publication date: 20210827 |