CN116445703A - Processing method of upper dial - Google Patents
Processing method of upper dial Download PDFInfo
- Publication number
- CN116445703A CN116445703A CN202310415067.0A CN202310415067A CN116445703A CN 116445703 A CN116445703 A CN 116445703A CN 202310415067 A CN202310415067 A CN 202310415067A CN 116445703 A CN116445703 A CN 116445703A
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- China
- Prior art keywords
- heat treatment
- machining
- dial
- upper dial
- moving speed
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- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 claims description 29
- 238000003754 machining Methods 0.000 claims description 16
- 238000003801 milling Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 238000009940 knitting Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000861 blow drying Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a processing method of an upper dial, which comprises the steps of deburring after blank processing and molding, installing an inserting sheet, and carrying out heat treatment processing on the upper dial on which the inserting sheet is installed; according to the invention, uniform circumferential heat treatment is carried out on the upper dial by the single-point flame gun, so that the deformation of the heat treatment is effectively reduced, and radial unevenness caused by primary heat treatment is counteracted by utilizing secondary heat treatment, so that the flatness of the upper dial after being processed is improved.
Description
Technical Field
The invention relates to the field of circular knitting machines, in particular to a processing method of an upper dial.
Background
When the large circular knitting machine works, the upper needle dial rotates at a high speed, the upper knitting needles reciprocate in the needle grooves, and the lower knitting needles of the corresponding lower needle cylinder move up and down, so that the knitting of the cloth cover is completed. When rotating at a high speed, the stability of the upper dial influences the quality of the finished fabric, so that the upper dial has higher flatness requirement.
The mouth of the upper needle dial is required to be frequently rubbed with the upper knitting needle and is required to be subjected to heat treatment, so that the structural strength and the wear resistance are improved, the upper needle dial is deformed due to the heat treatment in the traditional process, the radial unevenness of the needle dial is caused, the deformation is about 0.1-0.3mm, the flatness of the upper needle dial is reduced, and the production of high-quality cloth is not facilitated.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the problems in the prior art, the invention provides a processing method of an upper needle dial, which improves the structural strength and the wear resistance of the upper needle dial and greatly reduces the radial unevenness caused by heat treatment in the traditional process through two heat treatments.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
the processing method of the upper dial is characterized in that: deburring after the blank is processed and molded, installing the inserting sheet, and carrying out heat treatment processing on an upper needle dial on which the inserting sheet is installed; the heat treatment process specifically includes: the reverse surface of the upper dial with the inserted sheet is horizontally placed on a single-point heat treatment machine upwards for heat treatment, the roundness of the upper dial is required to be 0.03mm, the plane is required to be 0.03mm, a heating device is used for carrying out first heat treatment on the inclined surface of the top end of the nozzle, the heat treatment temperature is 750-810 ℃, the moving speed of the heating device is 400-450mm/min, cooling water is required to keep up immediately, the hardness of the nozzle is ensured, and the heat treatment is carried out at uniform speed for one turn to ensure that the whole circle is heat treated; then the water stain on the surface of the dry upper needle dial is treated, and then the heating device is aligned to the middle part of the reference surface of the bottom of the upper needle dial for the second heat treatment, the heat treatment temperature is 350-400 ℃, the heat treatment moving speed of the heating device is 600-650mm/min, and the heat treatment is carried out for one circle, so that the planeness deformation caused by the heat treatment of the top end of the mouth opening on the needle dial is reduced.
Further, the blank processing and forming specifically comprises the following steps:
s1: processing a common vertical lathe, fixing a blank on a vertical lathe platform, turning the front surface, turning the back surface, and turning a reference surface on the back surface;
s2: bench drill processing: clamping the semi-finished product processed in the step S1 on a dial on a bench drill platform, and drilling a plurality of process holes;
s3: processing by a computer vertical lathe: clamping screws corresponding to the number of the process holes in the step S2 on a computer vertical lathe for finish turning; the roundness is required to be within 0.03mm, and the plane is required to be within 0.02 mm;
s4: milling groove machining: and (3) carrying out groove milling on the tooling of the upper dial clamping groove milling machine after finish turning in the step (S3) within 0.03mm of roundness required by circle correction and leveling and within 0.02mm of plane required by plane, so as to finish machining and forming.
Further, the number of the process holes in the step S2 is 4-6.
Further, the water stain on the surface of the upper dial is dried by an air gun.
Further, the heating device is a single-point flame gun.
Further, the first heat treatment and the second heat treatment are both positioned on the same side of the upper dial.
Further, the temperature of the first heat treatment is 800 ℃, and the moving speed of the single-point flame gun heat treatment is 450mm/min.
Further, the temperature of the second heat treatment is 400 ℃, and the moving speed of the single-point flame gun heat treatment is 600mm/min.
(III) beneficial effects
The beneficial effects of the invention are as follows: the uniform circumferential heat treatment is carried out on the upper needle dial through the single-point flame gun, so that the deformation of the heat treatment is effectively reduced, the radial unevenness caused by primary heat treatment is counteracted by utilizing secondary heat treatment, and the flatness of the upper needle dial after being processed is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In a first embodiment, please refer to fig. 1-2:
the processing method of the upper dial comprises the following steps: deburring after the blank is processed and molded, installing the inserting sheet, and carrying out heat treatment processing on an upper needle dial on which the inserting sheet is installed;
the blank processing and forming specifically comprises the following steps:
s1: processing a common vertical lathe, fixing a blank on a vertical lathe platform, turning the front surface, turning the back surface, and turning a reference surface on the back surface;
s2: bench drill processing: clamping the semi-finished product processed in the step S1 on a dial on a bench drill platform, and drilling 4 process holes 110;
s3: processing by a computer vertical lathe: clamping screws corresponding to the number of the process holes in the step S2 on a computer vertical lathe for finish turning; the roundness is required to be within 0.03mm, and the plane is required to be within 0.02 mm;
s4: milling groove machining: and (3) carrying out groove milling on the tooling of the upper dial clamping groove milling machine after finish turning in the step (S3) within 0.03mm of roundness required by circle correction and leveling and within 0.02mm of plane required by plane, so as to finish machining and forming. The processed upper dial structure is shown in figure 2, the upper part is the front surface, the lower part is the back surface, and the lower plane is the reference plane;
the heat treatment process specifically includes: the reverse surface of the upper dial 100 on which the insert 200 is mounted is horizontally placed upwards on a single-point heat treatment machine for heat treatment, the roundness of the upper dial is required to be 0.03mm, the plane is required to be 0.03mm, a single-point flame gun is used for aligning the inclined surface 130 at the top end of the nozzle 120 for the first heat treatment, the heat treatment temperature is 800 ℃, the moving speed of the single-point flame gun is 450mm/min, cooling water is kept up immediately, so that the hardness of a nozzle opening is ensured, and the heat treatment is completed at a uniform speed for one circle, so that the heat treatment is ensured to be completed in the whole circle; then blow-drying the water stain on the surface of the upper needle dial by using an air gun, and then carrying out a second heat treatment by aiming a single-point flame gun at a second heat treatment part 140 in the middle of a reference surface of the bottom of the upper needle dial, wherein the heat treatment temperature is 400 ℃, and the moving speed of the heat treatment of the single-point flame gun is 600mm/min and is one circle of heat treatment of the whole circle, so that the planeness deformation caused by the heat treatment of the top end of a mouth opening on the needle dial is reduced; the first heat treatment and the second heat treatment are both positioned on the same side of the upper dial;
in the heat treatment process, a single-point heat treatment machine is adopted to perform circumferential movement around the upper needle disc, and the heat treatment mode of single-point heating is adopted, so that the surrounding has stronger influence on the heat treatment part during single-point heating, the deformation in the heat treatment process can be reduced, the moving process of a single-point flame gun is uniform, the deformation caused by heat expansion and cold contraction is also performed in a mode that the points gradually become circles, the radial deformation of the outer ring of the upper needle disc is influenced, the first heat treatment is the heat treatment on the inclined surface 130 at the top end of the mouth 120 of the outer ring of the upper needle disc 100, and the deformation process can improve the structural strength due to the existence of a large-area non-heated area, so that the deformation in the process is ensured to be as small as possible; the second heat treatment is performed in the middle of the reference surface, and the principle is the same as that of the first heat treatment, and although the two heat treatments are performed on the same side of the upper dial, the structural strength and the shape of the corresponding parts of the two parts are different, and the upper dial can be effectively deformed in the radial direction by performing the heat treatment at the middle of the reference surface, so that the radial deformation formed by the first heat treatment is counteracted, the upper dial tends to be flat, the deformation of the upper dial 100 after the two heat treatments is 0.02mm, which is far smaller than that of the traditional heat treatment process, and the deformation is effectively reduced. The deformation of the upper dial 100 after the final heat treatment by the process of the present invention is 0.02-0.04mm.
In the second embodiment, the previous processing step is the same as that in the first embodiment, the heat treatment specifically includes that the back surface of the upper dial 100 with the insert 200 installed thereon is placed on a single-point heat treatment machine to perform heat treatment, the roundness of the upper dial is 0.03mm, the flatness of the upper dial is 0.03mm, the first heat treatment is performed by using a single-point flame gun to align to the inclined plane 130 at the top end of the nozzle 120, the heat treatment temperature is 750 ℃, the moving speed of the single-point flame gun is 400mm/min, cooling water is kept up immediately, so as to ensure the hardness of the nozzle, and the heat treatment is performed at uniform speed and complete one turn to ensure that the whole circle of heat treatment is performed; then blow-drying the water stain on the surface of the upper needle dial by using an air gun, and then carrying out a second heat treatment by aiming a single-point flame gun at a second heat treatment part 140 in the middle of a reference surface of the bottom of the upper needle dial, wherein the heat treatment temperature is 350 ℃, and the moving speed of the heat treatment of the single-point flame gun is 650mm/min and is one circle of heat treatment of the whole circle, so that the planeness deformation caused by the heat treatment of the top end of a mouth opening on the needle dial is reduced;
the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (10)
1. The processing method of the upper dial is characterized in that: deburring after the blank is processed and molded, installing the inserting sheet, and carrying out heat treatment processing on an upper needle dial on which the inserting sheet is installed; the heat treatment process specifically includes: the reverse surface of the upper dial with the inserted sheet is horizontally placed on a single-point heat treatment machine upwards for heat treatment, the roundness of the upper dial is required to be 0.03mm, the plane is required to be 0.03mm, a heating device is used for carrying out first heat treatment on the inclined surface of the top end of the nozzle, the heat treatment temperature is 750-810 ℃, the moving speed of the heating device is 400-450mm/min, cooling water is required to keep up immediately, the hardness of the nozzle is ensured, and the heat treatment is carried out at uniform speed for one turn to ensure that the whole circle is heat treated; then the water stain on the surface of the dry upper needle dial is treated, and then the heating device is aligned to the middle part of the reference surface of the bottom of the upper needle dial for the second heat treatment, the heat treatment temperature is 350-400 ℃, the heat treatment moving speed of the heating device is 600-650mm/min, and the heat treatment is carried out for one circle, so that the planeness deformation caused by the heat treatment of the top end of the mouth opening on the needle dial is reduced.
2. The method of machining an upper dial according to claim 1, wherein the machining the blank comprises the steps of:
s1: processing a common vertical lathe, fixing a blank on a vertical lathe platform, turning the front surface, turning the back surface, and turning a reference surface on the back surface;
s2: bench drill processing: clamping the semi-finished product processed in the step S1 on a dial on a bench drill platform, and drilling a plurality of process holes;
s3: processing by a computer vertical lathe: clamping screws corresponding to the number of the process holes in the step S2 on a computer vertical lathe for finish turning; the roundness is required to be within 0.03mm, and the plane is required to be within 0.02 mm;
s4: milling groove machining: and (3) carrying out groove milling on the tooling of the upper dial clamping groove milling machine after finish turning in the step (S3) within 0.03mm of roundness required by circle correction and leveling and within 0.02mm of plane required by plane, so as to finish machining and forming.
3. The method of machining an upper dial according to claim 2, wherein: the number of the process holes in the step S2 is 4-6.
4. The method of machining an upper dial according to claim 1, wherein: the water stain on the surface of the upper dial is dried by an air gun.
5. The method of machining an upper dial according to claim 1, wherein: the heating device is a single-point flame gun.
6. The method of machining an upper dial according to claim 1, wherein: the first heat treatment and the second heat treatment are both positioned on the same side of the upper dial.
7. The method of machining an upper dial according to claim 1, wherein: the temperature of the first heat treatment is 800 ℃, and the moving speed of the single-point flame gun heat treatment is 450mm/min.
8. The method of machining an upper dial according to claim 1, wherein: the temperature of the second heat treatment is 400 ℃, and the moving speed of the single-point flame gun heat treatment is 600mm/min.
9. The method of machining an upper dial according to claim 1, wherein: the temperature of the first heat treatment is 750 ℃, and the moving speed of the single-point flame gun heat treatment is 400mm/min.
10. The method of machining an upper dial according to claim 1, wherein: the temperature of the second heat treatment is 350 ℃, and the moving speed of the single-point flame gun heat treatment is 650mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310415067.0A CN116445703A (en) | 2023-04-18 | 2023-04-18 | Processing method of upper dial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310415067.0A CN116445703A (en) | 2023-04-18 | 2023-04-18 | Processing method of upper dial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116445703A true CN116445703A (en) | 2023-07-18 |
Family
ID=87135280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310415067.0A Pending CN116445703A (en) | 2023-04-18 | 2023-04-18 | Processing method of upper dial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116445703A (en) |
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2023
- 2023-04-18 CN CN202310415067.0A patent/CN116445703A/en active Pending
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