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CN108672939B - Method for marking water level line scales on cooker liner by using laser - Google Patents

Method for marking water level line scales on cooker liner by using laser Download PDF

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Publication number
CN108672939B
CN108672939B CN201810276259.7A CN201810276259A CN108672939B CN 108672939 B CN108672939 B CN 108672939B CN 201810276259 A CN201810276259 A CN 201810276259A CN 108672939 B CN108672939 B CN 108672939B
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China
Prior art keywords
laser
marking
pot
inner container
water level
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CN201810276259.7A
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Chinese (zh)
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CN108672939A (en
Inventor
陈伟雄
范醉风
向军
陈克胜
吴烈
董肓精
王艺
高云峰
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Han s Laser Technology Industry Group Co Ltd
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Han s Laser Technology Industry Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/082Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/361Removing material for deburring or mechanical trimming

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Cookers (AREA)

Abstract

The invention discloses a method for marking water level line scales on a pot inner container by using laser, which comprises the following steps: moving the inner container of the pan to the inner edge of the effective range of the lens marking; after the position of the pot is adjusted, the pot is adjusted to be inclined to a preset angle range, and laser uniformly acts on the inner wall of a processing designated area by scanning an effective laser drawing track; and carrying out laser marking on the water line scale marked on the inner pot liner, so that the material in part of the surface area of the inner pot liner is gasified, and the remained groove forms the water line scale. Compared with the prior art, the method for marking the water level line scale on the cooker liner by using the laser does not need any subsequent process treatment, and the processed effect has smooth and flat bottom lines, clear and clear character boundaries and no burrs on the surface. The method has short time and low cost, and can obviously improve the working efficiency.

Description

Method for marking water level line scales on cooker liner by using laser
Technical Field
The invention belongs to the technical field of laser processing, and particularly relates to a method for marking water level line scales on a cooker liner by using laser.
Background
The existing process for marking the water level line scales on the pot inner container is to utilize a stamping device to perform punch forming on the pot inner container, the scales and patterns punched out have certain depth, when a stamping die performs stamping, the overall definition of the scales and the edges of the patterns is not enough, certain burr hand feeling is generated by touch, and the die is damaged by stamping at each time. The stamping equipment is expensive, the cost of the machine is high, the volume of the stamping equipment occupies a large area, the comprehensive cost is high, and the reduction of stock and product stagnation is not facilitated.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a method for marking water level line scales on a pot inner container by using laser, so that the problems that the integral definition of the scales and the edges of a graph is not enough, edge burrs exist, a stamping device is large in size and high in cost, inventory reduction is not facilitated, products are sluggish and the like when the water level scales are marked on the pot inner container by using the existing ordinary stamping process are solved.
The technical scheme of the invention is as follows:
the invention provides a method for marking water level line scales on a cooker liner by using laser, which comprises the following steps:
step A, moving the pot liner to the edge of the effective range of the lens marking, and adjusting the focus of the lens on the inner wall of the pot liner;
b, adjusting the inner wall of the inner container of the pot to incline to a preset angle;
and C, scanning a preset drawing track of the laser, and controlling the laser to uniformly act on the inner wall of the designated area to be processed according to the preset drawing track to mark, so as to finish the water level line scale marking of the pot inner container.
The method for marking the water level line scale on the inner pot liner by using the laser comprises the following steps that in the step A, the focal point of a lens is positioned on the inner pot by adjusting the height of the lens.
The method for marking the water level line scale on the inner container of the pot by using the laser comprises the step of adding a height increasing block on a lifting body of a laser marking machine and adjusting the height of a lens.
The method for marking the water level line scale on the cooker inner container by using the laser comprises the following steps before the step B:
the depth of focus is adjusted to a predetermined range.
The method for marking the water level line scale on the cooker inner container by using the laser comprises the following steps before the step A:
the inner container of the pot is fixed by a clamp.
The method for marking the water level line scale on the inner pot liner by using the laser comprises the following steps that in the step A, the inner pot liner is placed at the vertical position of the center of a lens and then horizontally moved leftwards or rightwards to the inner edge of the effective marking range of the lens.
The method for marking the water level line scale on the inner container of the pot by using the laser comprises the step B, wherein the preset angle is 30-75 degrees.
The method for marking the water level line scale on the cooker inner container by using the laser comprises the following steps before the step C: and debugging the laser marking machine and setting marking parameters. .
The method for marking the water level line scale on the inner pot container by using the laser comprises the following steps: the pulse wavelength is 1055nm-1075nm, and the pulse width is 100-140 ns.
The method for marking the water level line scale on the inner container of the pot by using the laser comprises the step of marking the water level line scale on the inner container of the pot by using the laser, wherein the preset range of the depth of the coke is 8-10 mm.
The invention has the beneficial effects that: compared with the prior art, the method does not need any subsequent process treatment, and has the advantages of smooth and flat ground texture, clear and clear character boundary and no burr on the surface. The method has short time and low cost, and can obviously improve the working efficiency.
Drawings
FIG. 1 is a structural diagram of the device for marking water level line scales on the inner container of a pot by using laser according to the invention.
FIG. 2 is a flow chart of the method for marking water level line scales on the inner container of the pot by using laser according to the invention.
FIG. 3 is an effect diagram of the water level line scale processed by the method of the present invention.
Detailed Description
The invention provides a method for marking water level line scales on a cooker inner container by utilizing laser, and in order to make the purpose, the technical scheme and the effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The device for marking the water level line scale on the inner container of the pot in the embodiment of the invention, as shown in figure 1, comprises: the laser system comprises an electric control part 1, a laser 2, a beam expander 3, a galvanometer system 4, an optical focusing lens 5 and a working platform 6. The electrical control unit 1 is used for supplying power to the laser and controlling the output mode of the laser beam. The laser 2 is used for providing a light source for the surface of the laser processing material; preferably a standard machine optical fiber marking machine, the pulse wavelength is 1055nm-1075nm, the pulse width is 100-140ns, and the average power is 20W. The beam expander 3 is used for expanding the light emitted by the laser source and improving the transmission characteristic of the laser so as to better converge the laser on the surface of the material. The galvanometer system 4 comprises an X galvanometer and a Y galvanometer, is formed by combining a scanning motor and an optical reflecting lens and is used for positioning and marking laser according to an appointed position given by control software by driving the optical reflecting lens to perform deflection type movement by using the scanning motor. The optical focusing mirror 5 is used for making the laser spot characteristics of the laser beam focused to a point on a certain plane consistent, and is preferably an optical focusing mirror of F525. The working platform 6 is used for placing the pot inner container during laser processing and marking.
Based on the above devices, the method for marking water level line scales on a cooker inner container by using laser provided by the embodiment of the invention, as shown in fig. 2, comprises the following steps:
step A, moving the pot liner to the edge of the effective range of the lens marking, and adjusting the focus of the lens on the inner wall of the pot liner;
b, adjusting the inner wall of the inner container of the pot to incline to a preset angle;
and C, scanning a preset drawing track of the laser, and controlling the laser to uniformly act on the inner wall of the designated area to be processed according to the preset drawing track to mark, so as to finish the water level line scale marking of the pot inner container.
Further, in this embodiment, in the step a, the focal point of the lens is located on the inner pot by adjusting the height of the lens.
Further, in this embodiment, in the step a, a height of the lens is adjusted by adding a height increasing block to a lifting body of the laser marking machine.
Further, in this embodiment, in the step a, after the inner pot is placed at the vertical position of the center of the lens, the inner pot is horizontally moved to the left or right to the inner edge of the effective range of the lens marking.
Further, in this embodiment, in the step B, the predetermined angle is 30 to 75 °.
The traditional common laser marking scales and patterns are all vertically acted on the surface of a workpiece at a laser incidence angle of 90 degrees, and the laser absorption rate is highest. However, due to the characteristics of the structure of the inner pot container, the height and the incident angle are certain, so that the marking of the scale cannot be realized completely by the laser at the incident angle with the highest absorptivity, and the inner pot container needs to be placed obliquely to mark the inner pot container because the vertical angle of the pot can block the laser processing track. If the inclination angle of the inner pot liner is too large or too small, the inner pot liner cannot be positioned in the effective range of laser marking, and the scales cannot be completely marked on the inner pot liner. Therefore, the range of the inclination angle of the inner container of the cooker needs to be between 30 degrees and 75 degrees. When the method is implemented specifically, firstly, the inner pot liner is placed at the vertical position of the center of the lens, and then horizontally moved leftwards or rightwards to the inner edge of the effective marking range of the lens; then, a height increasing block is added on a lifting body of the laser marking machine, and the height of a lens is adjusted, so that the focal point of the lens falls on the inner wall of the pot; then the pot placing angle is adjusted to be 30-75 degrees, and laser is enabled to uniformly act on the inner wall of the designated area to be machined through scanning the preset drawing track of the laser, so that the marking is completed. When the position is adjusted, attention is paid to avoid the upper edge of the pot wall of the inner pot from blocking a laser processing track running route, the highest laser absorption rate is ensured, and the phenomenon that energy is not caused due to the problem of a coke body is compensated.
Further, in this embodiment, before the step a, the method further includes:
step A1, debugging the laser marking machine and setting parameters. When the method is specifically implemented, the parameter adjusting range of the machine-light marking machine is as follows: the pulse wavelength is 1055nm-1075nm, and the pulse width is 100-.
Further, in this embodiment, before the step B, the method further includes:
and step B1, adjusting the focal depth to a preset range. When the lowest part and the highest part of the water level line scale are not positioned on the same horizontal line, laser is irradiated on the stainless steel pot, and a horizontal height difference exists between the lowest part and the highest part of the water level line scale. In specific implementation, the preset range of the coke depth and the coke length is 8 mm-10 mm. Preferably, the depth of focus is 9 mm.
Further, in this embodiment, before the step a1, the method further includes:
and step A2, fixing the inner container of the pot through a clamp. The cooker inner container is fixed and adjusted through the clamp, so that processing errors caused by looseness of the cooker inner container can be prevented, and the yield is improved.
Compared with the prior art, the method for marking the water level line scale on the inner container of the pot by using the laser does not need any subsequent process treatment, and the processed effect has smooth and flat bottom pattern, clear and clear character boundary and no burr on the surface (as shown in figure 3). The method has short time and low cost, and can obviously improve the working efficiency.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (8)

1. A method for marking water level line scales on a cooker inner container by using laser is characterized by comprising the following steps:
step A, moving the pot liner to the edge of the effective range of the lens marking, and adjusting the focus of the lens on the inner wall of the pot liner;
b, adjusting the inner wall of the inner container of the pot to incline to a preset angle;
step C, scanning a preset drawing track of laser, and controlling the laser to uniformly act on the inner wall of a processing designated area to mark according to the preset drawing track so as to finish the water level line scale marking of the pot inner container;
wherein, the step B also comprises the following steps before: adjusting the coke depth to a preset range; the preset range of the coke depth and the coke length is 8 mm-10 mm.
2. The method for marking the water level line scales on the inner container of the pot by using the laser as claimed in claim 1, wherein in the step A, the focal point of the lens is positioned on the inner pot by adjusting the height of the lens.
3. The method for marking the water level line scale on the pot inner container by using the laser as claimed in claim 2, wherein the height of the lens is adjusted by adding a height increasing block on a lifting body of the laser marking machine.
4. The method for marking the water level line scale on the pot inner container by using the laser as claimed in claim 1, wherein the step A is preceded by the step of:
the inner container of the pot is fixed by a clamp.
5. The method for marking the water level line scale on the pot inner container by using the laser as claimed in claim 1, wherein in the step A, after the pot inner container is placed at a vertical position of the center of the lens, the pot inner container is horizontally moved leftwards or rightwards to the inner edge of the effective marking range of the lens.
6. The method for marking the water level line scale on the pot inner container by using the laser as claimed in claim 1, wherein in the step B, the predetermined angle is 30-75 °.
7. The method for marking water level line scales on a pot inner container by using laser as claimed in claim 2, wherein the step C comprises the following steps before: and debugging the laser marking machine and setting marking parameters.
8. The method for marking the water level line scale on the pot inner container by using the laser as claimed in claim 7, wherein the marking parameters are as follows: the pulse wavelength is 1055nm-1075nm, and the pulse width is 100-140 ns.
CN201810276259.7A 2018-03-30 2018-03-30 Method for marking water level line scales on cooker liner by using laser Active CN108672939B (en)

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Application Number Priority Date Filing Date Title
CN201810276259.7A CN108672939B (en) 2018-03-30 2018-03-30 Method for marking water level line scales on cooker liner by using laser

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CN108672939B true CN108672939B (en) 2020-06-12

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Publication number Priority date Publication date Assignee Title
CN110744205B (en) * 2019-10-22 2022-06-14 大族激光科技产业集团股份有限公司 Laser depth marking method for titanium-based multilayer composite material
CN116202890A (en) * 2023-05-05 2023-06-02 山东路达试验仪器有限公司 Intelligent measuring system and method for elongation of steel bar based on machine vision

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH048316A (en) * 1990-04-27 1992-01-13 Mitsubishi Electric Home Appliance Co Ltd Cooking vessel
JPH1199061A (en) * 1997-09-29 1999-04-13 Matsushita Electric Ind Co Ltd Pot for rice cooker
KR200461686Y1 (en) * 2007-06-15 2012-07-30 쿠쿠전자주식회사 Water scale display apparatus of inner pot for electric rice cooker
KR20120091538A (en) * 2011-02-09 2012-08-20 (주)화인아트 Method of cooking container
CN103418911A (en) * 2012-05-21 2013-12-04 武汉金至园科技有限公司 Narrow-space laser marking method and marking machine thereof
CN206605918U (en) * 2017-03-18 2017-11-03 合肥市建元机械有限责任公司 A kind of adjustable axle tube coder of stamp depth
CN107717232B (en) * 2017-09-18 2019-04-19 杭州利富豪机电设备有限公司 Inner pot cover marking device and marking method

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