CN113867118B - Integrally-formed rotor wheel for quartz electronic watch core and preparation process - Google Patents
Integrally-formed rotor wheel for quartz electronic watch core and preparation process Download PDFInfo
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- CN113867118B CN113867118B CN202111480864.4A CN202111480864A CN113867118B CN 113867118 B CN113867118 B CN 113867118B CN 202111480864 A CN202111480864 A CN 202111480864A CN 113867118 B CN113867118 B CN 113867118B
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- rotor wheel
- ring
- magnetic steel
- electronic watch
- positioning walls
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- 239000010453 quartz Substances 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000001746 injection moulding Methods 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
The invention relates to an integrally formed rotor wheel for a quartz electronic watch core and a preparation process, and the integrally formed rotor wheel comprises a rotor wheel and magnetic steel positioned in the rotor wheel, wherein the rotor wheel comprises a rotor wheel upper part and a rotor wheel lower part which are mutually matched and connected and used for containing the magnetic steel, an upper ring is arranged at the upper part of the rotor wheel, and a plurality of arc-shaped first positioning walls are uniformly distributed on the inner wall of the upper ring; the lower portion of the rotor wheel comprises a bottom surface, a lower ring is arranged on the bottom surface, a plurality of arc-shaped second positioning walls are uniformly distributed on the inner side of the lower ring, and the first positioning walls and the second positioning walls are connected in a clamping mode to form a circular ring for containing the magnetic steel. This device can seal the protection to the magnet steel, prevents the magnetic loss.
Description
Technical Field
The invention relates to a rotor wheel, in particular to an integrally formed rotor wheel for a quartz electronic watch core and a preparation process thereof.
Background
The rotor wheel of the quartz watch is a driving mechanism of the whole quartz watch, and the rotor wheel is driven by a pulse signal to rotate.
As shown in fig. 1 and 2, a common rotor wheel in the prior art includes a rotor wheel 1, a magnetic steel 2 located inside the rotor wheel 1, a gear 3 further disposed outside the rotor wheel 1, and rotating shafts disposed at two ends of the rotor wheel 1. In this scheme, because the pivot will pass magnet steel 2, need open a hole 201 on magnet steel 2 and let the pivot install, this kind of way has increased work load, and is with high costs and not environmental protection.
As shown in fig. 3 and 4, for another common rotor wheel in the prior art, when the rotor wheel with this structure is manufactured, the magnetic steel 2 is now placed into a mold, the magnetic steel 2 is positioned by metal posts, and then the exterior of the magnetic steel 2 is injection-molded to form the rotor wheel 1, and after the metal posts are removed, the abdicating groove 202 is formed. The mechanism has the defects that the magnetic steel cannot be made into a consistent shape, if the magnetic steel is too small, the magnetic steel cannot be positioned, and if the magnetic steel is too large, the magnetic steel can be crushed, so that troubles are brought to production, and the requirement on the size of the magnetic steel is too high.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a rotor wheel which is sealed by paired magnetic steels through twice injection molding and a preparation method thereof.
The technical scheme of the invention is as follows:
an integrally formed rotor wheel for a quartz electronic watch core comprises a rotor wheel 1 and magnetic steel 2 positioned in the rotor wheel 1, wherein the rotor wheel 1 comprises a rotor wheel upper part 11 and a rotor wheel lower part 12 which are matched and connected with each other and used for containing the magnetic steel 2, the rotor wheel upper part 11 is provided with an upper ring 113, and a plurality of arc-shaped first positioning walls 114 are uniformly distributed on the inner wall of the upper ring 113; the lower portion 12 of the rotor wheel includes a lower bottom surface 121, a lower ring 120 is disposed on the lower bottom surface 121, a plurality of arc-shaped second positioning walls 122 are uniformly distributed on the inner side of the lower ring 120, and the first positioning wall 114 and the second positioning wall 122 are connected in a snap-fit manner to form a circular ring for accommodating the magnetic steel 2.
Further, the upper part of the upper part 11 of the rotor wheel is also provided with an upper gear 112 for connecting with a transmission gear outside the quartz watch.
Further, the upper gear 112 is provided with an upper rotating shaft 111 for fixing the upper portion of the entire rotor wheel to facilitate the rotation thereof.
Further, a lower rotating shaft 123 is disposed at a lower portion of the lower portion 12 of the rotor wheel, and is used for fixing a lower portion of the entire rotor wheel to facilitate rotation thereof.
Further, the number of the first positioning wall 114 and the second positioning wall 122 is two or three, and when the number is two or three, it is most convenient for the manufacturing process.
A preparation process of an integrally formed rotor wheel for a quartz electronic watch core is characterized by comprising the following steps:
s1, forming a rotor wheel upper part 11 by injection molding through a first upper mold 300 and a lower mold 200, wherein the rotor wheel upper part 11 includes an upper ring 113, a plurality of arc-shaped first positioning walls 114 are uniformly distributed on an inner wall of the upper ring 113, an upper gear 112 is further disposed on the upper part of the rotor wheel upper part 11, and an upper rotating shaft 111 is disposed on the upper gear 112;
s2, placing the magnetic steel 2 into the first positioning wall 114 of the upper part 11 of the rotor wheel;
s3, injection molding the rotor wheel lower part 12 matched with the upper part 11 of the rotor wheel through the second upper die 400 and the lower die 200; the lower portion 12 of the rotor wheel includes a lower bottom surface 121, a lower ring 120 is disposed on the lower bottom surface 121, a plurality of arc-shaped second positioning walls 122 are uniformly distributed on the inner side of the lower ring 120, and the second positioning walls 122 are molded into the grooves between the first positioning walls 114 and are connected in a snap fit manner to form a circular ring for accommodating the magnetic steel 2.
Further, the lower ring 120 is thermally fused to the upper ring 113.
By the scheme, the invention at least has the following advantages:
(1) the formed magnetic steel is wrapped in the rotor wheel, is separated from the outside and is not contacted with air, so that the performance of the magnetic steel can be effectively protected;
(2) the magnetic steel is placed in the rotor wheel, the close fit is realized through the first injection molding, the magnetic steel can be well positioned, no metal part is contacted with the magnetic steel, no metal is contacted with the magnetic steel during the second injection molding, and the magnetic steel cannot be damaged in the production process.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a first schematic structural diagram of the background art of the present invention;
FIG. 2 is a second schematic structural diagram of the background art of the present invention;
FIG. 3 is a third schematic structural diagram of the background art of the present invention;
FIG. 4 is a fourth schematic structural diagram of the background art of the present invention;
FIG. 5 is a schematic structural view of the present invention;
FIG. 6 is an exploded view of the structure of the present invention;
FIG. 7 is a schematic view of the upper structure of the rotor wheel of the present invention;
FIG. 8 is a schematic view of the lower structure of the rotor wheel of the present invention;
FIG. 9 is a first schematic illustration of the present invention;
FIG. 10 is a second schematic illustration of the preparation of the present invention;
in the figure:
1-a rotor wheel; 11-rotor wheel upper part; 111-an upper rotating shaft; 112-upper gear; 113-upper loop; 114-a first positioning wall; 12-rotor wheel lower part; 120-lower loop; 121-lower bottom surface; 122-a second locating wall; 123-lower rotating shaft;
2-magnetic steel;
200-lower mould;
300-a first upper mold;
400-second upper mold.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 5 and 10, an integrally formed rotor wheel for a quartz electronic watch core according to a preferred embodiment of the present invention includes a rotor wheel 1 and a magnetic steel 2 located inside the rotor wheel 1, wherein the magnetic steel 2 is directly located inside the rotor wheel 1 and does not contact with the outside.
The rotor wheel 1 comprises a rotor wheel upper part 11 and a rotor wheel lower part 12 which are connected in a matched mode and used for containing the magnetic steel 2, the rotor wheel upper part 11 and the rotor wheel lower part 12 are two parts formed by independent injection molding, and finally the rotor wheel lower part 12 is connected to the rotor wheel upper part 11 in an injection molding mode, so that the rotor wheel upper part 11 and the rotor wheel lower part 12 are connected into a whole in a hot melting mode, the magnetic steel 2 is contained between the rotor wheel upper part 11 and the rotor wheel lower part, the magnetic steel 2 is sealed, and meanwhile the magnetic steel 2 does not need to be punched.
The upper portion 11 of the rotor wheel is sequentially provided with an upper rotating shaft 111, an upper gear 112 and an upper ring 113 from top to bottom, wherein the upper rotating shaft 111, the upper gear 112 and the upper ring 113 are all formed by injection molding, specifically, the upper rotating shaft 111 is cylindrical, the bottom of the upper rotating shaft is connected to the upper portion of the upper gear 112, the lower portion of the upper gear 112 is connected with the upper ring 113, the upper ring 113 comprises a circular upper bottom surface connected with the upper gear 112 and a circular ring connected to the circular upper bottom surface, and a plurality of arc-shaped first positioning walls 114 are uniformly distributed on the inner wall of the circular ring of the upper ring 113. The first positioning wall 114 is also formed by injection molding, the first positioning wall 114 is located on the inner wall of the upper ring 113, and the first positioning wall 114 is partially annular and is closely attached to the upper ring 113. The first positioning wall 114 is used for installing the magnetic steel 2, and the magnetic steel 2 is installed in the upper ring 113.
The rotor wheel lower portion 12 includes a lower bottom surface 121, and the lower bottom surface 121 has a circular shape, which is identical in size to the circular upper bottom surface of the upper ring 113. A circle of lower ring 120 is arranged on the edge of the lower bottom surface 121, the outer diameter of the lower ring 120 is consistent with the outer diameter of the upper ring 113, a plurality of arc-shaped second positioning walls 122 are uniformly distributed on the inner side of the lower ring 120, the second positioning walls 122 are also part of arcs, the second positioning walls 122 are positioned on the upper portion of the inner side of the lower ring 120, and a lower rotating shaft 123 is arranged at the bottom of the lower bottom surface 121. The rotor wheel lower portion 12 is also formed by injection molding. Meanwhile, after injection molding, the second positioning wall 122 is located on the inner wall of the upper ring 113 and is clamped between two adjacent first positioning walls 114.
The lower ring 120 and the upper ring 113 are thermally fused together.
In a specific arrangement, the number of the first positioning wall 114 and the second positioning wall 122 is two or three, two or three are preferred technical solutions, and actually, four or more are also possible.
The upper and lower spindles 111, 123 are coaxial when specifically manufactured.
A preparation process of an integrally formed rotor wheel for a quartz electronic watch core comprises the following steps:
s1, rotor wheel upper part 11 is injection molded by first upper mold 300 and lower mold 200, where first upper mold 300 corresponds to the shape of magnetic steel 2 and lower mold 200 corresponds to the shape of rotor wheel upper part 11. After the first upper mold 300 and the lower mold 200 are clamped, the rotor wheel upper portion 11 is injection molded into the molds. The upper part 11 of the rotor wheel comprises an upper ring 113, a plurality of arc-shaped first positioning walls 114 are uniformly distributed on the inner wall of the upper ring 113, an upper gear 112 is further arranged on the upper part 11 of the rotor wheel, and an upper rotating shaft 111 is arranged on the upper gear 112. During the specific injection molding, the injection molding temperature is 150-230 ℃, the injection molding time is 5-10 seconds, the heat preservation time is 10-30 seconds, and the specific injection molding plastic can be PP, ABS, PE and PVC.
S2, the first upper mold 300 moves upward to release the magnetic steel, and then the magnetic steel 2 is placed into the first positioning wall 114 of the rotor wheel upper portion 11 by a mechanical device, so that the magnetic steel 2 is fixed in the first positioning wall 114 of the rotor wheel upper portion 11.
S3, injection molding the rotor wheel lower part 12 matched with the upper part 11 of the rotor wheel through the second upper die 400 and the lower die 200; the second upper mold 400 is shaped to correspond to the shape of the lower rotor wheel portion 12. After the second upper mold 400 and the lower mold 200 are closed, the rotor wheel lower portion 12 is injection molded into the mold. The lower portion 12 of the rotor wheel includes a lower bottom surface 121, a lower ring 120 is disposed on the lower bottom surface 121, a plurality of arc-shaped second positioning walls 122 are uniformly distributed on the inner side of the lower ring 120, and the second positioning walls 122 are molded into the grooves between the first positioning walls 114 and are connected in a clamping manner to form a circular ring for accommodating the magnetic steel 2. During the specific injection molding, the injection molding temperature is 150-230 ℃, the injection molding time is 5-10 seconds, the heat preservation time is 10-30 seconds, and the specific injection molding plastic can be PP, ABS, PE and PVC.
The second upper mold 400 and the lower mold 200 are matched to form the shape of the lower part 12 of the rotor wheel after injection molding, and simultaneously, the magnetic steel 2 is wrapped, and in the injection molding process, as a certain gap possibly exists between the magnetic steel 2 and the first positioning wall 114, the gap can be filled in the secondary injection molding process. Can realize the more stable parcel to magnet steel 2.
The magnetic steel in the invention does not need to be provided with a hole in the center, and meanwhile, the magnetic steel 2 can be better wrapped.
By the scheme, the invention at least has the following advantages:
(1) the formed magnetic steel is wrapped in the rotor wheel, is separated from the outside and is not contacted with air, so that the performance of the magnetic steel can be effectively protected;
(2) the magnetic steel is placed in the rotor wheel, the close fit is realized through the first injection molding, the magnetic steel can be well positioned, no metal part is contacted with the magnetic steel, no metal is contacted with the magnetic steel during the second injection molding, and the magnetic steel cannot be damaged in the production process.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides an integrated into one piece's rotor wheel for quartz electronic watch core, includes rotor wheel (1), and is located inside magnet steel (2) of rotor wheel (1), its characterized in that:
the rotor wheel (1) comprises a rotor wheel upper part (11) and a rotor wheel lower part (12) which are matched and connected with each other and used for containing the magnetic steel (2), the rotor wheel upper part (11) is provided with an upper ring (113), and a plurality of convex arc-shaped first positioning walls (114) are uniformly distributed on the inner wall of the upper ring (113); the rotor wheel lower part (12) comprises a lower bottom surface (121), a lower annular ring (120) is arranged on the lower bottom surface (121), a plurality of arc-shaped second positioning walls (122) are uniformly distributed on the inner side of the lower annular ring (120), and the first positioning walls (114) and the second positioning walls (122) are clamped and connected to form a circular ring for accommodating the magnetic steel (2).
2. A rotor wheel for an integrally formed quartz electronic watch core according to claim 1, characterized in that: the upper part of the upper part (11) of the rotor wheel is also provided with an upper gear (112).
3. A rotor wheel for an integrally formed quartz electronic watch core according to claim 2, characterized in that: an upper rotating shaft (111) is arranged on the upper gear (112).
4. A rotor wheel for an integrally formed quartz electronic watch core according to claim 1, characterized in that: and a lower rotating shaft (123) is arranged at the lower part of the lower part (12) of the rotor wheel.
5. A rotor wheel for an integrally formed quartz electronic watch core according to claim 1, characterized in that: the number of the first positioning wall (114) and the second positioning wall (122) is two or three.
6. A preparation process of an integrally formed rotor wheel for a quartz electronic watch core is characterized by comprising the following steps:
s1, forming a rotor wheel upper part (11) through injection molding of a first upper die (300) and a lower die (200), wherein the rotor wheel upper part (11) comprises an upper ring (113), a plurality of arc-shaped first positioning walls (114) are uniformly distributed on the inner wall of the upper ring (113), an upper gear (112) is further arranged on the upper part of the rotor wheel upper part (11), and an upper rotating shaft (111) is arranged on the upper gear (112);
s2, placing the magnetic steel (2) into a first positioning wall (114) of the upper part (11) of the rotor wheel;
s3, injection molding a matched rotor wheel lower part (12) on the rotor wheel upper part (11) through a second upper die (400) and a lower die (200); the rotor wheel lower part (12) comprises a lower bottom surface (121), a lower ring (120) is arranged on the lower bottom surface (121), a plurality of arc-shaped second positioning walls (122) are uniformly distributed on the inner side of the lower ring (120), and the second positioning walls (122) are molded into grooves between the first positioning walls (114) in a clamping mode and form a circular ring for accommodating the magnetic steel (2).
7. The process for preparing an integrally formed rotor wheel for a quartz electronic watch core according to claim 6, wherein: the lower ring (120) is connected with the upper ring (113) in a hot melting way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480864.4A CN113867118B (en) | 2021-12-07 | 2021-12-07 | Integrally-formed rotor wheel for quartz electronic watch core and preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480864.4A CN113867118B (en) | 2021-12-07 | 2021-12-07 | Integrally-formed rotor wheel for quartz electronic watch core and preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113867118A CN113867118A (en) | 2021-12-31 |
| CN113867118B true CN113867118B (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111480864.4A Active CN113867118B (en) | 2021-12-07 | 2021-12-07 | Integrally-formed rotor wheel for quartz electronic watch core and preparation process |
Country Status (1)
| Country | Link |
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| CN (1) | CN113867118B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54136610A (en) * | 1978-04-14 | 1979-10-23 | Citizen Watch Co Ltd | Manufacture of rotor for converter |
| JPS5895967A (en) * | 1981-12-03 | 1983-06-07 | Seikosha Co Ltd | 2-color forming rotor for miniature motor |
| FR2811820B1 (en) * | 2000-07-13 | 2003-02-28 | Isa France Sa | ROTOR FOR MICRO-MOTOR |
| CN200990556Y (en) * | 2006-11-24 | 2007-12-12 | 番禺明珠星钟厂 | Movement rotor wheel for watch |
| CN103138443A (en) * | 2011-11-27 | 2013-06-05 | 陈朝辉 | Micromotor rotor |
| CN103840587B (en) * | 2014-03-07 | 2016-09-28 | 吴中一 | Crystal clock, table rotor wheel |
| CN109245358A (en) * | 2018-09-28 | 2019-01-18 | 福州小神龙表业技术研发有限公司 | A kind of timepiece movement rotor and its manufacturing method |
-
2021
- 2021-12-07 CN CN202111480864.4A patent/CN113867118B/en active Active
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| CN113867118A (en) | 2021-12-31 |
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Inventor after: Xue Jiapeng Inventor after: Pan Huifang Inventor after: Yang Dan Inventor before: Xue Fei |
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