CN110658713B - Method for detecting full strip rate of mechanical meter - Google Patents
Method for detecting full strip rate of mechanical meter Download PDFInfo
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- CN110658713B CN110658713B CN201910873954.6A CN201910873954A CN110658713B CN 110658713 B CN110658713 B CN 110658713B CN 201910873954 A CN201910873954 A CN 201910873954A CN 110658713 B CN110658713 B CN 110658713B
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B5/00—Automatic winding up
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Abstract
The invention relates to a method for detecting the full strip rate of a mechanical watch, which is suitable for the mechanical watch, wherein the mechanical watch comprises a movement and a winding deviceThe detection method comprises the following steps: s1: obtaining the number of turns N of the handle from the zero energy storage state of the spring to the detectionc(ii) a S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f(ii) a S5: calculating the first full rate of the spring
The detection method for the full rate of the mechanical meter is suitable for the mechanical meter with any model and structure, and under the premise that parts of the movement are not required to be disassembled, the calculation formula of the full rate of the mechanical meter can be quickly obtained through a mode of combining detection and calculation, so that the full rate of the movement in different winding states can be evaluated, meanwhile, the detection efficiency can be improved, the research and development cost is reduced, and the product quality is improved.
Description
Technical Field
The invention relates to the technical field of mechanical meter detection, in particular to a method for detecting the full rate of a mechanical meter.
Background
The winding method of the mechanical watch is simple and easy to operate, the common mechanical watch can be wound by only rotating the handle, and the automatic mechanical watch can be wound automatically by the action of arm movement of a user in daily life. For a long time, the research on the winding degree of the mechanical watch in the domestic clock industry depends on experience judgment, and accurate judgment basis cannot be provided to guide the internal research and development of enterprises or the use of clients. Although there is a uniform standard in the industry, the standard does not distinguish between the types of movement based on their size or other characteristic parameters, so that it cannot be guaranteed that a movement will be topped up with bars.
Disclosure of Invention
Therefore, it is necessary to provide a quantifiable method for detecting the full rate of the mechanical watch, aiming at the problem that the full rate of the mechanical watch cannot be accurately judged at present.
A detection method for the full rate of a mechanical watch is suitable for the mechanical watch, the mechanical watch comprises a movement, a winding mechanism and a clockwork spring, the clockwork spring and a handle are respectively arranged on the movement, the handle is in transmission connection with the clockwork spring, the clockwork spring is driven to wind and store energy when the handle rotates, and the detection method for the full rate of the clockwork spring comprises the following steps:
s1: obtaining the number of turns N of the handle from the zero energy storage state of the spring to the detectionc；
S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f；
S5: calculating the first full rate of the spring
In one embodiment, the winding mechanism further includes a winding ratchet and an automatic hammer, the winding ratchet and the automatic hammer are respectively rotatably disposed on the movement, the winding ratchet is driven to store energy by the winding ratchet when the handle rotates or the automatic hammer rotates, and the full-winding rate detection method further includes the following steps:
s2: obtaining the number of rotating turns N of the handle when the winding ratchet wheel rotates one turnc_1；
S4: calculating the number of turns of the winding ratchet wheel from the zero energy storage state to the full state of the spring
S6: obtaining the number of rotation turns N of the automatic hammer from the zero energy storage state of the spring to the detectionr；
S7: obtaining the number of turns N of the automatic hammer when the winding ratchet wheel rotates one turnr_1；
S8: calculating the number of turns of the automatic hammer from the zero energy storage state to the full state of the spring
S9: calculating the second full rate of the spring
In one embodiment, the winding machine drives the automatic hammer to rotate to realize winding energy storage of the spring, the winding speed of the spring is r, and the spring full rate detection method further comprises the following steps:
s10: acquiring winding time t from a zero energy storage state of a clockwork spring to detection;
s11: calculating the total winding time from the zero energy storage state to the full state of the spring
S12: calculating the third full rate of the spring
In one embodiment, the winder maintains a uniform winding speed.
In one embodiment, in the step S1, the step S2, and the step S3, the rotation of the handle is maintained at a low and uniform rotation speed, and the number of rotations of the handle is recorded.
In one embodiment, in the step S6 and the step S7, the automatic hammer is kept rotating at a low and uniform rotation speed, and the number of rotation turns of the automatic hammer is recorded.
In one embodiment, in the step S2 and the step S7, the winding ratchet is marked, and the winding ratchet rotates one turn when the marking of the winding ratchet is returned to the initial position.
In one embodiment, the mechanical watch further includes a rear cover, and the rear cover is transparent to allow direct viewing of the rotation state of the corresponding structure on the movement or is removed to directly view the rotation state of the corresponding structure on the movement in the steps S2, S4, S6, and S7.
In one embodiment, in step S3, the winding manner of the power spring includes manual winding, and the power spring is in a full state when the handle is rotated until a significant rotational resistance is provided.
In one embodiment, in step S3, the winding manner of the power spring includes automatic winding, and the power spring is in a full state when the fine click sound of the rotating handle is generated.
The detection method for the full rate of the mechanical meter is suitable for the mechanical meter with any model and structure, and under the premise that parts of the movement are not required to be disassembled, the calculation formula of the full rate of the mechanical meter can be quickly obtained through a mode of combining detection and calculation, so that the full rate of the movement in different winding states can be evaluated, meanwhile, the detection efficiency can be improved, the research and development cost is reduced, and the product quality is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a method for detecting a full rate of a mechanical meter according to an embodiment of the present invention;
fig. 2 is a method for detecting a full rate of a mechanical meter according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.
The method for detecting the full rate of the mechanical watch is suitable for detecting the full rate of various types of mechanical watches, and for convenience of description, the mechanical watch is taken as an example for description. The mechanical watch uses gear transmission as a main transmission form and a prime system as a power source, and is used for maintaining the basic travel time and the travel time precision of the watch. The winding drum box is a prime power system of the watch, the elastic winding drum is coiled inside the winding drum box, and when the outside applies work to the watch, the winding drum is stored in an elastic potential energy mode and is converted into mechanical energy to provide power for the watch. This process is known as "winding". The winding method of the mechanical watch is simple and easy to operate, and the winding can be realized only by rotating the handle of the common mechanical watch; the automatic mechanical watch can automatically wind through the action of arm movement of a person wearing the watch in daily life.
Generally, in the state that the mechanical core is completely stopped, 40-60 turns of the handle are rotated to fully wind up the spring. People with large activities wear the clockwork spring full (only for self-winding watches) for about 8 hours a day. And the industrial standard QB/T1249-2013 mechanical watch stipulates that: the automatic winding watch winds by a winding machine in a completely relaxed state, the watch with a bidirectional winding mechanism winds for (40 +/-1) min, and the watch with a unidirectional winding mechanism winds for (80 +/-1) min. "
The basic movement of mechanical watch is composed of prime power system (spring barrel), drive system (drive gear), escapement speed-regulating system (escapement and balance spring system), pointer system (hour hand, minute hand, second hand, etc.) and winding and setting system (hand or automatic hammer). The barrel is a mechanism for storing energy, when the prime train obtains energy, the energy is transmitted to the escapement mechanism through the transmission system, the escapement mechanism supplies the energy to the balance spring system periodically, so that the balance spring forms a stable vibration period and the rhythmical control pointer system rotates. Therefore, whether the hands of the watch rotate or not is a direct reflection of the power storage of the spring barrel, and the larger the watch continues to travel, the larger the power storage capacity of the watch.
The mechanical watches (movement) produced by different manufacturers have different parameters such as size, structure, material and the like, and the power storage capacity of the spring barrel is different. For a common mechanical watch, the power storage of the watch can generally be kept for a continuous travel time of 36 to 45 hours; and some mechanical watches with ultra-long endurance can be stored for 72 hours or more. The standards of superior products are stipulated in the trade standard QB/T1249-2013 mechanical watch: the I type (the assembly diameter of the watch movement is more than 20mm) is not less than 45h (hand winding) and not less than 42h (automatic winding) when the watch movement continues; the continuous travel time of type II (the assembly diameter of the watch movement is 16mm-20mm) is more than or equal to 40h (hand winding) and more than or equal to 38h (automatic winding). Even the best watch with the best travel time performance and the most stable travel time effect has the duration from 38 hours to 45 hours. For some watches with a short duration, the power storage capacity is also small, and the number of turns (of the handle) or the (automatic) winding time required for winding is also reduced accordingly.
Mechanical watches are divided into manual winding watches and automatic winding watches. The winding mode of the manual winding watch is that the handle is rotated, the judgment mode of the full bar is that the handle is continuously rotated, and the full bar is filled when resistance is felt. The manual winding watch has no automatic mechanism, and winding is realized in a rotating handle mode. When the handle is rotated to wind, the handle drives the bar shaft to rotate, and the clockwork spring is wound tightly. Due to the elastic action, when the clockwork spring is wound up, the clockwork spring naturally springs open to force the barrel wheel to rotate. The teeth of the drum drive the toothed shaft engaged with the drum to rotate, so as to drive other transmission gear trains and an escapement speed regulation system, and the whole mechanism works. When the handle is rotated continuously and resistance is sensed, the handle is full, and winding is stopped at the moment, so that parts in the movement are prevented from being damaged due to overload. The winding mode of the automatic winding watch comprises a rotating handle mode and an automatic hammer swinging mode. The judgment method of the automatic winding watch for full winding is to continue winding, and the spring box makes a fine 'click' sound.
The automatic winding watch retains a manual winding mechanism and is additionally provided with a part of mechanical devices, namely an automatic mechanism. The automatic winding is realized by the action of arm movement of a wearer in daily life. As long as the wrist swings, the automatic hammer can flexibly rotate, and further the automatic mechanism is driven to be meshed with each other to continuously wind. In the case of insufficient activity, manual winding may be performed. Because the automatic winding watch is additionally provided with a friction device to prevent overload from forming and damaging parts, after the watch is full, obvious resistance is not felt when the watch is continuously wound. The spring is continuously wound, the clockwork spring slips, and the movement makes a fine 'click' sound. Because the automatic winding watch is provided with the automatic device, after the clockwork spring reaches a full-string state, in order to ensure that the clockwork spring can normally work, the auxiliary clockwork spring can be utilized to realize slipping, so that the watch can not feel obvious resistance when the clockwork spring is full. On one hand, the winding machine can be ensured to be in a full-string state, and on the other hand, the winding machine cannot be damaged or the moment of the winding machine is not too large due to the continuous work of the automatic device.
Due to different designs of various watches, the power storage capacity is correspondingly different. Some II type mechanical watches have full strips after 20 turns of the rotating handle (weak power storage capacity and short continuous time), but some I type mechanical watches need 40 turns of the rotating handle to reach the full strip state (weak power storage capacity and long continuous time). If a winding machine is used, the time required to push out a type II mechanical watch to be full is correspondingly less than that of a type I mechanical watch.
The invention provides a method for detecting the full rate of a mechanical watch, which can intuitively reflect the winding degree of a mechanical movement and is suitable for the mechanical watch with manual winding and automatic winding. The detection method can analyze different mechanical watches, detect and calculate the full rate of the watch in different winding states, is flexible and has high accuracy, and saves the research and development cost.
In an embodiment of the present invention, a method for detecting a full rate of a mechanical watch is applicable to a mechanical watch, where the mechanical watch includes a movement, a winding mechanism and a spiral spring, the spiral spring and the bar are respectively disposed on the movement, the bar is in transmission connection with the spiral spring, and the rotation of the bar drives the spiral spring to wind and store energy, as shown in fig. 1, the method for detecting a full rate of a spiral spring includes the following steps: s1: obtaining the number of turns N of the handle from the zero energy storage state of the spring to the detectionc(ii) a S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f(ii) a S5: calculating the first full rate of the spring
The detection method for the full rate of the mechanical meter is suitable for the mechanical meter with any model and structure, and under the premise that parts of the movement are not required to be disassembled, the calculation formula of the full rate of the mechanical meter can be quickly obtained through a mode of combining detection and calculation, so that the full rate of the movement in different winding states can be evaluated, meanwhile, the detection efficiency can be improved, the research and development cost is reduced, and the product quality is improved.
The method for detecting the full rate of the mechanical watch provided by the embodiment can be used for simultaneously detecting the full rates of the manual winding watch and the automatic winding watch. In the wearing process of the mechanical watch, the automatic winding watch is deeply favored by consumers, particularly sports enthusiasts, by virtue of the advantage of automatic winding. In an embodiment of the invention, the method for detecting the full rate of the mechanical watch is applied to the automatic winding process of the automatic winding watch. The winding mechanism further comprises a winding ratchet wheel and an automatic hammer, the winding ratchet wheel and the automatic hammer are respectively rotatably arranged on the movement, the winding ratchet wheel is used for driving the winding spring to store energy when the handle rotates or the automatic hammer rotates, and as shown in fig. 2, the winding-up rate detection method comprises the following steps: s1: get the slave of the handleNumber of rotation turns N from zero energy storage state of spring to detectionc(ii) a S2: obtaining the number of rotating turns N of the handle when the winding ratchet wheel rotates one turnc_1(ii) a S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f(ii) a S4: calculating the number of turns of the winding ratchet wheel from the zero energy storage state to the full state of the spring
S6: obtaining the number of rotation turns N of the automatic hammer from the zero energy storage state of the spring to the detectionr(ii) a S7: obtaining the number of turns N of the automatic hammer when the winding ratchet wheel rotates one turnr_1(ii) a S8: calculating the number of turns of the automatic hammer from the zero energy storage state to the full state of the spring
S9: calculating the second full rate of the spring
The detection method for the mechanical watch full rate is suitable for mechanical watches of any models and structures, under the premise that a movement part does not need to be detached (when necessary, a watch rear cover needs to be detached for observation), the calculation formula of the mechanical watch full rate can be quickly obtained through a mode of combining detection and calculation, the full rate of the movement in different winding states can be evaluated, meanwhile, the detection efficiency can be improved, the research and development cost is reduced, and the product quality is improved.
In the actual production and detection process, the automatic winding watch realizes the automatic winding through a winding machine, which is a necessary detection mode. In an embodiment of the present invention, as shown in fig. 2, the winding machine drives the automatic hammer to rotate to realize energy storage of winding energy of the clockwork spring, the winding speed of the clockwork spring is r, and the method for detecting the full rate of the clockwork spring comprises the following steps: s1: obtaining the number of turns N of the handle from the zero energy storage state of the spring to the detectionc(ii) a S2: obtaining the number of rotating turns N of the handle when the winding ratchet wheel rotates one turnc_1(ii) a S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f(ii) a S4: calculating the number of turns of the winding ratchet wheel from the zero energy storage state to the full state of the spring
S6: obtaining the number of rotation turns N of the automatic hammer from the zero energy storage state of the spring to the detectionr(ii) a S7: obtaining the number of turns N of the automatic hammer when the winding ratchet wheel rotates one turnr_1(ii) a S8: calculating the number of turns of the automatic hammer from the zero energy storage state to the full state of the spring
S10: acquiring winding time t from a zero energy storage state of a clockwork spring to detection; s11: calculating the total winding time from the zero energy storage state to the full state of the spring
S12: calculating the third full rate of the spring
The detection method for the mechanical watch full rate is suitable for mechanical watches of any models and structures, under the premise that a movement part does not need to be detached (when necessary, a watch rear cover needs to be detached for observation), the calculation formula of the mechanical watch full rate can be quickly obtained through a mode of combining detection and calculation, the full rate of the movement in different winding states can be evaluated, meanwhile, the detection efficiency can be improved, the research and development cost is reduced, and the product quality is improved.
The three embodiments respectively provide an effective and rapid detection method for the full rate of the mechanical watch. In order to further ensure that the method for detecting the full rate of the mechanical watch in the above embodiment can more accurately determine the full rate of the mechanical watch, as a practical way, in the step S1, the step S2 and the step S3, the rotation of the handle is kept at a low and uniform rotation speed, and the number of turns of the handle is recorded. The rotation of the handle at a lower and uniform rotating speed is kept, so that the stable operation of the detection process can be ensured, the accuracy of data recording can also be ensured, and the detection accuracy of the detection method for the full rate of the mechanical meter provided by the embodiment is further improved. Further, in step S3, the winding manner of the power spring includes manual winding, and the power spring is in a full state when the handle is rotated until a significant rotational resistance is generated. Alternatively, in step S3, the winding method of the power spring includes automatic winding, and the power spring is in a full state when the minute click sound generated by the rotation knob is generated.
In some practical applications, the mechanical watch further includes a rear cover, and in the steps S2, S4, S6 and S7, the rear cover is transparent to allow direct viewing of the rotation state of the corresponding structure on the movement, or the rear cover is removed to directly view the rotation state of the corresponding structure on the movement. The method for detecting the full strip rate of the mechanical watch does not need to disassemble the movement in a shape-advancing mode, and only needs to observe the movement. Further, in the step S2 and the step S7, the winding ratchet is marked, and the winding ratchet rotates one turn when the marking of the winding ratchet is returned to the initial position, so as to accurately record the number of turns N of the winding ratchet when the winding ratchet rotates one turnc_1。
In one embodiment of the present invention, in the step S6 and the step S7, the automatic hammer is kept rotating at a low and uniform rotation speed, and the number of rotation turns of the automatic hammer is recorded. The automatic hammer is kept to rotate at a lower and uniform rotating speed, so that the stable operation of the detection process can be ensured, the accuracy of data recording can also be ensured, and the detection accuracy of the detection method for the full rate of the mechanical meter provided by the embodiment is improved. Further, in step S10, the winding machine maintains a uniform winding speed, so as to ensure that the mechanical watch is driven by the winding machine to uniformly wind.
The following are four specific embodiments of detecting the mechanical watch by using the method for detecting the full rate of the mechanical watch provided by the invention.
In a first specific example, the test subjects: a domestic manual winding mechanical watch A; preparation conditions are as follows: standing watch A at room temperature until the clockwork spring is completely relaxed; according to the inventionMethod for detecting full rate of mechanical meter, slowly rotating handle, recording number of rotation turns N of handlec(ii) a The winding is stopped when the handle is continuously rotated and resistance is sensed; recording the turn of the handle at this time by 60 turns, i.e. Nc_f60; from this, the mechanical watch has a full rate of
Wherein N iscThe number of turns of the handle at any time.
In a second specific example, the test subjects: a certain domestic automatic winding mechanical watch B is transparent in a rear cover, and a winding ratchet wheel and an automatic mechanism can be observed; preparation conditions are as follows: standing watch B at room temperature until the clockwork spring is completely relaxed; according to the detection method of the mechanical watch full rate, provided by the invention, the watch rear cover is disassembled, and the winding ratchet wheel is marked; slowly rotating the handle and recording the number of turns N of the handlec(ii) a Rotating the winding ratchet wheel and observing the mark of the winding ratchet wheel; when the mark is turned to the initial position, the winding ratchet turns 1 turn, and then the winding ratchet turns 7 turns, namely Nc_17; the handle continues to rotate until the clockwork spring slips, and a 'click' sound is given out. Record the turn of the handle at this time by 56 turns, Nc_f56; when full, the number of turns of the winding ratchet wheel
When the movement is full, the handle needs to be rotated for 56 circles. Thus, the full rate of the mechanical watch can be obtained
Wherein N iscThe number of turns of the handle at any time.
In a third specific example, the test subjects: as in the second embodiment, namely an automatic winding mechanical watch B; preparation conditions are as follows: after completing example two, watch B was left at room temperature until the balance spring was completely relaxed; according to the detection method of the full strip rate of the mechanical watch, the initial position of a winding ratchet wheel is confirmed, the initial position of a mark is confirmed, and a glove or a worker is used without directly contacting a movement with a handThe automatic hammer is slowly shifted to observe a winding ratchet wheel; when the mark is turned to the initial position again, the winding ratchet turns 1 turn, at which time the automatic hammer turns 150 turns, i.e. Nr_1150; in a second embodiment, it is calculated that when the movement is full, the spring must rotate 8 times, i.e. it is
When the machine core is full of strips, the automatic hammer needs to rotate
Thus, the full rate of the mechanical watch can be obtained
Wherein N isrThe number of turns of winding rotation of the automatic hammer at any time is shown.
In a fourth specific example, the test subjects: as in the second and third embodiments, the automatic winding mechanical watch B; preparation conditions are as follows: after completion of the third specific example, watch B was left standing at room temperature until the balance spring was completely relaxed; winding the movement watch by using a winding machine (the swing frequency is about 18 times per minute, namely r is 18), and recording the winding time t from the zero energy storage state of the clockwork spring to the detection; in a third specific embodiment, N is calculatedr_fWhen the movement is full, the automatic winding time is 1200
Thus, the full rate of the mechanical watch can be obtained
Wherein t is the winding time of the winding machine at any time, and is taken in minutes.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The detection method for the full strip rate of the mechanical watch is characterized by being applicable to the mechanical watch, the mechanical watch comprises a movement, a winding mechanism and a clockwork spring, the winding mechanism comprises a handle, the clockwork spring and the handle are respectively arranged on the movement, the handle is in transmission connection with the clockwork spring, the clockwork spring is driven to wind and store energy when the handle rotates, and the detection method for the full strip rate of the clockwork spring comprises the following steps:
s1: obtaining the number of turns N of the handle from the zero energy storage state of the spring to the detectionc；
S3: obtaining the number of turns N of the spring from a zero energy storage state to a full statec_f；
S5: calculating the first full rate of the spring
2. The method for detecting the full rate of a mechanical watch according to claim 1, wherein said winding mechanism further comprises a winding ratchet and an automatic hammer, said winding ratchet and said automatic hammer are respectively rotatably disposed on said movement, said winding ratchet is used for driving said winding spring to store energy when said handle rotates or said automatic hammer rotates, and said method further comprises the steps of:
s2: obtaining the number of rotating turns N of the handle when the winding ratchet wheel rotates one turnc_1；
S4: calculating winding ratchet slave springNumber of turns from zero stored energy state to full state
S6: obtaining the number of rotation turns N of the automatic hammer from the zero energy storage state of the spring to the detectionr；
S7: obtaining the number of turns N of the automatic hammer when the winding ratchet wheel rotates one turnr_1；
S8: calculating the number of turns of the automatic hammer from the zero energy storage state to the full state of the spring
S9: calculating the second full rate of the spring
3. The method for detecting the full rate of a mechanical watch according to claim 2, wherein the winding energy storage of the winding spring is realized by driving the automatic hammer to rotate through a winding machine, the winding speed of the winding machine is r, and the method for detecting the full rate of the winding spring further comprises the following steps:
s10: acquiring winding time t from a zero energy storage state of a clockwork spring to detection;
s11: calculating the total winding time from the zero energy storage state to the full state of the spring
S12: calculating the third full rate of the spring
4. A method for detecting the full rate of mechanical watches according to claim 3, characterized in that the winding speed of the winder is maintained uniform.
5. A method for detecting the full rate of mechanical watches according to any of claims 2-3, wherein in step S1, step S2 and step S3, the rotation of the handle is maintained at a low and uniform rotation speed, and the number of rotations of the handle is recorded.
6. The method for detecting the full rate of a mechanical watch according to any one of claims 2-3, wherein in said step S6 and said step S7, the automatic hammer is kept rotating at a low and uniform rotation speed, and the number of rotations of the automatic hammer is recorded.
7. The method for detecting the full rate of a mechanical watch according to any one of claims 2-3, wherein in said steps S2 and S7, the winding ratchet is marked, and when the marking of the winding ratchet is returned to the initial position, the winding ratchet rotates one turn.
8. The method for detecting the full rate of a mechanical watch according to any one of claims 2-3, wherein said mechanical watch further comprises a back cover, and in said steps S2, S4, S6 and S7, said back cover is transparent to allow direct observation of the rotation state of the corresponding structure on the movement, or said back cover is removed to directly observe the rotation state of the corresponding structure on the movement.
9. A method for detecting the full rate of a mechanical watch according to any one of claims 1 to 3, wherein in said step S3, said winding means of said balance spring comprises manual winding, the balance spring being in a full state when the handle is rotated until a significant rotational resistance is obtained.
10. The method for detecting the full rate of a mechanical watch according to any one of claims 1 to 3, wherein in step S3, the winding manner of the power spring includes automatic winding, and the power spring is in a full state when the fine click sound of the rotating handle is generated.
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| EP3376308A1 (en) * | 2017-03-17 | 2018-09-19 | Montres Jaquet Droz SA | Winding mechanism of a timepiece |
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| CN104390870A (en) * | 2013-08-19 | 2015-03-04 | 珠海罗西尼表业有限公司 | Method for rapidly detecting fatigue resistance of mechanical watch spring |
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