CN1216196C - Copper-net knitting method for microwave shielding cushion ring - Google Patents
Copper-net knitting method for microwave shielding cushion ring Download PDFInfo
- Publication number
- CN1216196C CN1216196C CN 02112954 CN02112954A CN1216196C CN 1216196 C CN1216196 C CN 1216196C CN 02112954 CN02112954 CN 02112954 CN 02112954 A CN02112954 A CN 02112954A CN 1216196 C CN1216196 C CN 1216196C
- Authority
- CN
- China
- Prior art keywords
- copper
- knitting
- diameter
- needle
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Wire Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to a copper screen knitting method for microwave shielding gaskets. A cylindrical machine needle cylinder and knitting needles are used to knit copper wires into a cylindrical pipe screen in a flat knitting manner. The present invention is characterized in that the technical parameters comprises: three copper wires are combined into one strand for knitting; secondly, the number of the combined copper wires for knitting is between 37 and 40; thirdly, the diameter of the bottom of the needle groove of the machine needle cylinder is between 47mm and 49mm; fourthly, when the diameter of the copper wires is 0.1mm, the fed wire length of each needle is between 0.8500mm and 0.9079mm; and when the diameter of the copper wire is 0.12mm, the fed wire length of each needle is between 0.9210mm and 0.9600mm. The present invention relates to a microwave directional shielding copper screen gasket for magnetrons in microwave ovens, more specifically to a knitting method for a gasket copper screen, and provides the copper screen knitting method and the relevant technical parameters according to the copper wire with different diameters. According to the method, the copper screen can not be pulled to be damaged and broken, and high density and uniform density distribution are kept. The shielding copper screen gasket made through the post processing of cutting, flanging, punching, etc. for the copper screen by the method can obtain the optimum service performance and effects. Through the detection of Panasonic electronic companies in Japan, the performance of the shielding copper screen gasket is better than that of similar products in Japan.
Description
Technical field
The present invention relates to be used on the magnetron shielding copper mesh packing ring of microwave orientation, be specifically related to a kind of knitting method of this shielding copper mesh packing ring.Described magnetron is a kind of microwave generator, is mainly used in the device such as micro-wave oven.
Background technology
Micro-wave oven with its save time, distinct advantages such as convenient, fast, health, brought facility to people's life, existing a considerable amount of at present families use micro-wave oven.The core component of micro-wave oven is a magnetron, it is a kind of high-frequency microwave generator, has directionality preferably in order to make magnetron send high-frequency microwave, general output antenna periphery on magnetron puts a slice shielding gasket, the similar packing ring of this shielding gasket profile, but this packing ring is not a plain washer, but a kind of by the repressed packing ring that forms of braiding copper mesh, and its body is repeatedly pressed by copper mesh and constituted.According to the directed requirement of the microwave of magnetron, shielding copper mesh packing ring manufacturing process flow is: coiling → knitting → shearing → flange → punching press → finished product, and wherein, winding process mainly is three copper wires to be merged into one copper cash be used for knitting; Knitting process is with cartridge type eedle tube and knitting needle, and copper cash is become the cartridge type pipe network by plain stitch; Cutting operation is that the cartridge type copper mesh that braiding is good is divided into plurality of sections, copper mesh packing ring of every section correspondence, and with every section Weight control in certain limit; Overturning process be by hand or machinery every section copper mesh is carried out turnup, turnup is respectively from two ends, from inside to outside towards middle turnup, with two ends turnup circle synthesis type shape, the circle type is made up of the inner ring of some and the outer ring of some then; Stamping procedure is that the copper mesh with the flange lopping is placed on and is pressed into washer-shaped in the die cavity and gets final product.Shielding copper mesh packing ring quality quality not only directly influences the microwave directional effect of magnetron, and is related to the leakage rate size of microwave.A good shielding copper mesh packing ring is not only having strict demand aspect size, weight, the material, and the more important thing is: 1, packing ring will reach certain density requirements; 2, the copper mesh Density Distribution in the packing ring is even; 3, packing ring integral body is stereotyped; 4, the copper wire in the packing ring is not pulled and tensile phenomenon.More or less there are some quality problems in shielding copper mesh packing ring in the past, and it mainly shows following several respects: 1, packing ring copper mesh Density Distribution is inhomogeneous, causes the microwave leakage amount to increase; 2, whole typing is bad, is easy to generate distortion; 3, pull easily in the manufacture process, even break copper wire, directly influence shield effectiveness.Find that through putting into practice us its basic reason is the weaving of copper mesh, the braiding situation that is to say copper mesh has determined the quality of copper mesh packing ring on the whole, and other manufacturing technique is such as coiling, shearing, flange, punching press, much smaller to the influence of copper mesh packing ring quality by contrast.For this reason, the present invention has proposed a kind of copper-net knitting method that is exclusively used in shielding copper mesh packing ring on the basis of a large amount of tests, analysis, summary, to overcome above-mentioned deficiency, guarantee the workmanship of shielding copper mesh packing ring.
Summary of the invention
For achieving the above object, the copper wire that the present invention is directed to different-diameter has proposed the corresponding techniques scheme:
One, the technical scheme that adopts during for 0.1mm when the diameter of copper wire is: a kind of copper-net knitting method of microwave shielding cushion ring, adopt cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, its technological parameter is as follows:
(1), the copper wire that is 0.1mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 37～40;
(3), diameter is 47～49mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.8500～0.9079mm to every pin.
Related content and change interpretation in the technique scheme are as follows:
1, described " copper-net knitting method " is meant the method that is knitted into the tubular pipe network by copper wire.The tubular pipe network is meant similar columnar pipe network, sees shown in the accompanying drawing 5.Described " eedle tube " is meant the simplified member that knitting needle is installed, referring to accompanying drawing 3 and Fig. 4, eedle tube 4 is provided with vertical needle tray 5, be placed with a knitting needle in each needle tray 5, be placed with annular extension spring in the extension spring groove 6 of eedle tube 4 outer rims, this extension spring will be positioned in the needle tray 5 around all knitting needle compressings that eedle tube 4 is arranged, knitting needle relative needle tray 5 upper and lower slips in the braiding process weave.The quantity of needle tray 5 is identical with knitting needle, and on eedle tube circumference five equilibrium, diameter 7 is important parameters on the eedle tube 4 at the bottom of the needle tray, it with diameter, the density of tube net 8, that every pin is eaten line length is closely related.Every pin is eaten line length and is meant that every braiding one pin spent copper cash length, and the pass that it and every circle are eaten line is: every circle is eaten line length=every pin and eaten line length * knitting needle number.
2, the preferred plan technological parameter in the technical program is:
(1), the copper wire that is 0.1mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 38;
(3), diameter is 48mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.8550～0.8948mm to every pin.
Two, the technical scheme that adopts during for 0.12mm when the diameter of copper wire is: a kind of copper-net knitting method of microwave shielding cushion ring, adopt cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, its technological parameter is as follows:
(1), the copper wire that is 0.12mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 37～40;
(3), diameter is 47～49mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.9210～0.9600mm to every pin.
Related content and change interpretation in the technique scheme are as follows:
1, identical with the aforementioned techniques scheme about noun with notion, no longer be repeated in this description here.
2, the preferred plan technological parameter in the technical program is:
(1), the copper wire that is 0.12mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 38;
(3), diameter is 48mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.9342～0.9600mm to every pin.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, the copper wire that the present invention is directed to different-diameter provides the knitting method of copper mesh and relevant technological parameter, and the copper mesh manufacturing that is woven according to the method shielding copper mesh packing ring can obtain best result of use.The shielding copper mesh packing ring of being made by technical solution of the present invention detects better than Japanese like product performance through Matsushita company, 350 ℃ the insulation 1 hour after, do not see that to tangible oxidation stain when the magnetron full load was adjusted to peak power, the microwave leakage index was 0.1.
2, technological parameter of the present invention under flat pin knitting method in the copper mesh copper wire neither can be pulled and be broken, kept higher density again, and the copper mesh Density Distribution is even, for postorder processing technologys such as the shearing of copper mesh, flange, punching press have been established important foundation.
3, the copper wire that the present invention is directed to different-diameter with knitting needle number, needle tray at the bottom of diameter and every pin eat line length and be controlled in the preferred range, thereby copper mesh has been possessed be processed into the condition of good shielding copper mesh packing ring.Length is too short pulls and breaks copper wire easily if opposite every pin is eaten, and oversizely causes density to descend and inhomogeneous.To eat line length relevant for diameter and knitting needle quantity and every pin at the bottom of the needle tray, and too big density is not enough, and Density Distribution is inhomogeneous after the punching press, and copper wire is pulled and broken to too little knitting relatively difficulty easily.
Description of drawings
Accompanying drawing 1 is a shielding copper mesh packing ring front view of the present invention;
Accompanying drawing 2 is the vertical view of Fig. 1;
Accompanying drawing 3 is an eedle barrel structure schematic diagram of the present invention;
Accompanying drawing 4 is the vertical view of Fig. 3;
Accompanying drawing 5 is for of the present invention by the knitting tubular pipe network schematic diagram that forms of copper wire.
In the above accompanying drawing: 1, shielding copper mesh packing ring; 2, centre bore; 3, flanging; 4, eedle tube; 5, needle tray; 6, extension spring groove; 7, diameter at the bottom of the needle tray; 8, tubular pipe network (abbreviation copper mesh).
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: the technical scheme that adopts during for 0.1mm when the diameter of copper wire is: a kind of copper-net knitting method of microwave shielding cushion ring, adopt cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, its technological parameter is as follows:
(1), the copper wire that is 0.1mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 38;
(3), diameter is 48mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.8550～0.8948mm to every pin.
Copper wire adopts φ 0.1mm, the H68 brass wire, knitting needle adopts 38 on 785/96 flat pin, and it is installed in the needle tray 5 of eedle tube 4, be placed with annular extension spring in the extension spring groove 6 of eedle tube 4 outer rims, this extension spring will be positioned in the needle tray 5 around all knitting needle compressings that eedle tube 4 is arranged, knitting needle relative needle tray 5 upper and lower slips in the braiding process weave, before knitting every pin is eaten line length and adjust to above-mentioned scope, generally every pin is eaten line length during adjustment and be converted into every circle and eat line length adjustment, because like this than being easier to.The speed of a motor vehicle can not be too fast in knitting, otherwise easy fracture of wire.Copper mesh moves downwards continuously along the centre bore 2 of eedle tube 4 in the braiding process.
Embodiment two: the technical scheme that adopts during for 0.12mm when the diameter of copper wire is: a kind of copper-net knitting method of microwave shielding cushion ring, adopt cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, its technological parameter is as follows:
(1), the copper wire that is 0.12mm with three diameters is merged into one and carries out knitting;
(2), knitting needle quantity is 38;
(3), diameter is 48mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.9342～0.9600mm to every pin.
Other content is identical with embodiment one, no longer is repeated in this description here.
Claims (4)
1, a kind of copper-net knitting method of microwave shielding cushion ring adopts cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, it is characterized in that:
(1), the diameter of copper wire is 0.1mm, adopt three copper wires to be merged into one and carry out knitting;
(2), knitting needle quantity is 37～40;
(3), diameter is 47～49mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.8500～0.9079mm to every pin.
2, copper-net knitting method according to claim 1 is characterized in that:
In above-mentioned second, knitting needle quantity is 38;
In above-mentioned the 3rd, diameter is 48mm at the bottom of the needle tray of eedle tube;
In above-mentioned the 4th, it is 0.8550～0.8948mm that every pin is eaten line length.
3, a kind of copper-net knitting method of microwave shielding cushion ring adopts cartridge type eedle tube and knitting needle, and copper wire is become the cartridge type pipe network by plain stitch, it is characterized in that:
(1), the diameter of copper wire is 0.12mm, adopt three copper wires to be merged into one and carry out knitting;
(2), knitting needle quantity is 37～40;
(3), diameter is 47～49mm at the bottom of the needle tray of eedle tube;
(4), to eat line length be 0.9210～0.9600mm to every pin.
4, copper-net knitting method according to claim 3 is characterized in that:
In above-mentioned second, knitting needle quantity is 38;
In above-mentioned the 3rd, diameter is 48mm at the bottom of the needle tray of eedle tube;
In above-mentioned the 4th, it is 0.9342～0.9600mm that every pin is eaten line length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112954 CN1216196C (en) | 2002-04-26 | 2002-04-26 | Copper-net knitting method for microwave shielding cushion ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112954 CN1216196C (en) | 2002-04-26 | 2002-04-26 | Copper-net knitting method for microwave shielding cushion ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1376818A CN1376818A (en) | 2002-10-30 |
| CN1216196C true CN1216196C (en) | 2005-08-24 |
Family
ID=4742355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112954 Expired - Fee Related CN1216196C (en) | 2002-04-26 | 2002-04-26 | Copper-net knitting method for microwave shielding cushion ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1216196C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281850B (en) * | 2007-04-03 | 2010-11-03 | 三星电子株式会社 | Magnetron and electromagnetic wave shielding gasket |
| US7949231B2 (en) | 2002-06-24 | 2011-05-24 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses |
| US8831406B2 (en) | 2002-11-20 | 2014-09-09 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of at least video data recorded thereon and recording and reproducing methods and apparatuses |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7425432B2 (en) * | 2019-01-28 | 2024-01-31 | 国立研究開発法人宇宙航空研究開発機構 | Mesh structure and its manufacturing method, antenna reflector, electromagnetic shielding material, waveguide |
-
2002
- 2002-04-26 CN CN 02112954 patent/CN1216196C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7949231B2 (en) | 2002-06-24 | 2011-05-24 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses |
| US8831406B2 (en) | 2002-11-20 | 2014-09-09 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of at least video data recorded thereon and recording and reproducing methods and apparatuses |
| US8886021B2 (en) | 2002-11-20 | 2014-11-11 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of at least video data recorded thereon and recording and reproducing methods and apparatuses |
| CN101281850B (en) * | 2007-04-03 | 2010-11-03 | 三星电子株式会社 | Magnetron and electromagnetic wave shielding gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1376818A (en) | 2002-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1216196C (en) | Copper-net knitting method for microwave shielding cushion ring | |
| US4781039A (en) | Circular knit with warp knit structure and method of making same | |
| CN106128545A (en) | Graphene core electric conductor and preparation method thereof | |
| CN105355288A (en) | Flexible cable for tow chain | |
| CN110042684B (en) | Steel wire rope, production method thereof and straightener | |
| CN108550423A (en) | A kind of anti-interference buggy ladle cable of high strength flexible and preparation method thereof | |
| CN101556844A (en) | High-frequency signal transmission wire and preparation method thereof | |
| CN105280313B (en) | A kind of production method of big specification abnormity aluminium conductor wire core cable | |
| CN219040126U (en) | Anti-interference data cable with high flame-retardant sheath covered outside | |
| WO2020174457A1 (en) | Electrically conductive yarns and electrically conductive fabrics made therefrom | |
| CN2864922Y (en) | Control line in cable and cable within same | |
| CN203573673U (en) | Irradiation crosslinked rubber insulation special reel cable | |
| CN105463694B (en) | Non-ignition loss graphite braided wire and production method thereof | |
| CN105088431A (en) | Double-twisting processing method for conductive low-shrinkage polyester industrial yarn on ALLMA double-twisting machine | |
| CN1687568A (en) | Technique for manufacturing heat insulated muffler | |
| CN214336360U (en) | Novel insulating twisted-pair cable | |
| CN212750486U (en) | Flame-retardant shielded cable | |
| CN208208367U (en) | One kind being used for robot device's movable signal transmission cable | |
| CN1094992C (en) | Stainless steel fiber material and its processing technology and stainless steel fiber muffler element | |
| CN102248020B (en) | Universal regulator for metal fiber drawing die | |
| CN206819769U (en) | Flat type cable | |
| CN207425406U (en) | Lightweight high flexibility removal cable | |
| CN201765869U (en) | Flat cable | |
| CN100361233C (en) | Improved design of external shield layer of video transmission line | |
| CN201532811U (en) | High-speed signal transmission connecting wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |