Mechanical clock automatic winding device

Abstract

This utility model relates to the field of mechanical clock technology and discloses an automatic winding device for mechanical clocks. It includes a main frame with an automatic winding mechanism inside. The automatic winding mechanism includes a device cavity, with a control panel fixed to the front end of the cavity. A control module is fixed to the inner wall of the control panel, and a power module is fixed to the bottom of the inner wall of the cavity. This utility model uses a geared motor and control module to automatically wind the mechanical clock at set times, keeping it running continuously. This avoids problems such as lubricating oil solidification and parts rusting that can cause the clock to stop when the user forgets to wind it, thus increasing the clock's lifespan. It can also be used to compensate for timekeeping errors and improve accuracy when the clock slows down due to wear between parts during long-term operation. This is achieved by increasing the number of rotations of the geared motor and increasing the winding torque.

Description

Technical Field

[0001] This utility model relates to the field of mechanical clock technology, specifically to an automatic winding device for mechanical clocks. Background Technology

[0002] A mechanical clock is a timekeeping device that tells time by chiming. It is a product of human ingenuity. The earliest mechanical clocks in the West appeared in European monasteries in the 13th century. Initially, mechanical clocks driven by weights appeared in English monasteries. It is a time measuring device driven by a mechanical structure. Its core principle is to use the elastic potential energy stored in the spring, transmit power through the gear transmission system, and maintain the timing accuracy through the balance wheel and hairspring system. Mechanical clocks are divided into spring-loaded mechanical clocks and electronic mechanical clocks, etc.

[0003] The existing spring-loaded mechanical clock is a timekeeping device that uses a spring to store energy and drive a gear system, and uses an escapement mechanism to control the release of energy. Its working principle is that the high-strength steel spring of the spring stores elastic potential energy when it is wound, and releases kinetic energy gradually when it is released to drive the gear set. It can also be used with an escapement mechanism, such as an escape wheel or escape fork, to control the rhythm of energy release. The balance wheel and hairspring system adjusts the timekeeping speed by oscillating at a fixed frequency.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:

[0005] The aforementioned spring-loaded mechanical clocks require periodic winding during use. If the user forgets to wind the clock for an extended period, the lubricating oil may solidify, parts may rust, and the clock may stop, reducing its lifespan. Furthermore, these spring-loaded mechanical clocks have the highest torque (running faster) when fully wound and the lowest torque (running slower) when the energy is depleted, resulting in timekeeping errors and inaccurate operation. Therefore, an automatic winding device for mechanical clocks is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic winding device for mechanical clocks. By using a power module to drive a geared motor to automatically wind the mechanical clock, this method solves the biggest pain point of traditional mechanical clocks, eliminating the need for users to manually wind the clock periodically and improving ease of use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic winding device for a mechanical clock, comprising a main frame, an automatic winding mechanism inside the main frame, the automatic winding mechanism including a device cavity, a control panel fixed to the front end of the device cavity, a control module fixed to the inner wall of the control panel, a power module fixed to the bottom of the inner wall of the device cavity, a reduction motor aligned with the top of the power module, an output shaft shaft connected to the top surface of the reduction motor, a docking groove formed at the top of the output shaft, anti-slip grooves arranged around the inner wall of the docking groove, a mainspring shaft docked to the top of the docking groove, and a mechanical clock shaft shaft connected to the top of the mainspring shaft.

[0008] Preferably, the control panel and the control module are fixedly connected, and the control module is electrically connected to the power module and the geared motor via wiring.

[0009] Preferably, the control module is used to control the start-up time of the geared motor and monitor the load current of the geared motor.

[0010] Preferably, the bottom end of the mechanical clock engages with the top surface of the main frame, and the mechanical clock is aligned with the center of the output shaft via the bottom spring shaft.

[0011] Preferably, the output shaft is inserted into the spring shaft through a docking groove, and the anti-slip groove is evenly distributed around the inner wall of the docking groove.

[0012] Preferably, the main frame includes an outer box, and the outer walls on both sides of the outer box are provided with gripping grooves, a padding frame is fixed to the bottom of the outer box, and a control panel is fixed to the outer wall of the outer box.

[0013] Preferably, the gripping groove is recessed along both sides of the outer wall of the outer casing, and the padding frame is evenly attached to the bottom surface of the outer casing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model uses a geared motor and a control module to automatically wind a mechanical clock at set times, keeping the clock running continuously. This avoids problems such as lubricating oil solidification and parts rusting that can cause the clock to stop when the user forgets to wind it, thus increasing the clock's lifespan. It can also be used to compensate for timekeeping errors and improve accuracy when the clock slows down due to wear between parts during long-term operation. This is achieved by increasing the number of rotations of the geared motor and increasing the winding torque.

[0016] 2. This automatic winding device monitors the changes in the load current of the geared motor to obtain the data relationship between the load current and the mainspring torque. It can control the rotation of the geared motor to keep the mainspring torque within the range of optimal timekeeping accuracy of the mechanical clock, thereby further improving the timekeeping accuracy of the mechanical clock.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the main frame of this utility model;

[0019] Figure 2 This is a side view of the internal structure of the main frame of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the output shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the automatic loading process of this utility model.

[0022] In the diagram: 1. Main frame; 101. Outer housing; 102. Holding groove; 103. Pad frame; 2. Automatic winding mechanism; 201. Equipment cavity; 202. Control panel; 203. Control module; 204. Power module; 205. Gear motor; 206. Output shaft; 207. Connecting groove; 208. Anti-slip groove; 209. Spring shaft; 210. Mechanical clock. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 An automatic winding device for a mechanical clock according to this embodiment includes a main frame 1, an automatic winding mechanism 2 is provided inside the main frame 1, the main frame 1 includes an outer box 101, and grip grooves 102 are provided on both sides of the outer wall of the outer box 101, a pad frame 103 is fixed at the bottom of the outer box 101, and a control panel 202 is fixed on the outer wall of the outer box 101.

[0025] like Figure 1-4 As shown, the mechanical clock in this utility model is similar in structure to existing mechanical clocks. The main improvement of this utility model is that the mechanical clock 210 is automatically wound by the power module 204 driving the geared motor 205. This solves the biggest pain point of traditional mechanical clocks, eliminating the need for users to manually wind the clock every now and then, thus improving ease of use. In this utility model, both the geared motor 205 and the mechanical clock 210 are existing technologies. When using this automatic winding device, the outer casing 101 of this device can be placed directly in the desired position, and the mechanical clock 210 can be directly fastened to the top surface of the outer casing 101. After placement, the bottom is kept stable by the padding frame 103 attached to the bottom surface of the outer casing 101. At the same time, the outer casing 101 provides mounting for all internal modules, forming an integrated structure and providing external protection. In detail: The function of the pad frame 103 is to fix the automatic winding device on the placement table, similar to how a mobile phone holder is attached to the center console of a car to prevent movement. Because the geared motor has a certain torque when automatically winding the mechanical clock, it is optimal for the base to have a structure that can be fixed on the placement table; otherwise, the base would need to be made very large.

[0026] like Figure 2-4As shown, the automatic winding mechanism 2 includes a device cavity 201, and a control panel 202 is fixed to the front end of the device cavity 201. A control module 203 is fixed to the inner wall of the control panel 202. A power module 204 is fixed to the bottom of the inner wall of the device cavity 201. A reduction motor 205 is aligned with the top of the power module 204, and an output shaft 206 is shaft-connected to the top surface of the reduction motor 205. A docking groove 207 is formed at the top of the output shaft 206. Anti-slip grooves 208 are arranged around the inner wall of the docking groove 207. A spring shaft 209 is docked to the top of the docking groove 207. A mechanical clock 210 is attached to the end shaft. During use, the automatic winding device engages with the top surface of the outer casing 101 via the bottom end of the mechanical clock 210. The mainspring shaft 209 at the bottom of the mechanical clock 210 is inserted into the output shaft 206 of the geared motor 205. A mating groove 207 inside the output shaft 206, along with an anti-slip groove 208, maintains stable friction during the insertion, ensuring stable automatic winding. After assembly, the control module 203 can control the geared motor 205 to rotate the output shaft 206. Once the mainspring shaft 209 of the mechanical clock 210 is fully wound, it will lock. At this point, the geared motor 205 will... The geared motor 205 will stall, and the current will increase significantly after it stalls. By setting a stall threshold current I1, when the detected load current of the geared motor 205 is greater than I1, the control module 203 can be used to control the geared motor 205 to temporarily rotate. After the mechanical clock 210 has been running for a certain period of time, the torque of its mainspring will decrease. When the mainspring torque drops to the set value M1, its running time is T1. At this time, the geared motor 205 can be started to continue winding the mechanical clock 210. The geared motor 205 starts at intervals of T1, and so on, so that the torque of the mechanical clock 210 is always between full winding and M1, which greatly reduces the torque. To reduce the variation in the mainspring torque of the mechanical clock 210 and improve its timekeeping accuracy, the load torque and load current of the geared motor 205 are analyzed, as shown in the table below. The geared motor 205 is set to stop rotating and winding when the load current exceeds I2. After the mechanical clock 210 has run for a certain time T3, the geared motor 205 is controlled to continue winding. When the load current of the geared motor 205 exceeds I2, the geared motor 205 stops rotating. This cycle repeats, keeping the mainspring torque at a certain value instead of the maximum torque at full winding, and also reducing the likelihood of the geared motor 205 stalling.

[0027] Table of Relationship between Load Current and Shaft Torque of Gear Motor

[0028] Load current of geared motor Torque of the bar shaft I1 M1 I2 M2 I3 M3 I4 M4 I5 M5 In Mn

[0029] Within the effective load range of the geared motor 205, the load current of the geared motor 205, the torque of the mainspring shaft 209, and the output torque of the mainspring are positively correlated. The greater the torque of the mainspring shaft 209, the greater the load current of the geared motor 205. As shown in the table above regarding the relationship between the load current of the geared motor and the torque of the mainspring shaft, the load current of the geared motor 205 can be monitored by the control module 203 to maintain the torque of the mainspring shaft 209 within a suitable range, thereby improving the timekeeping accuracy of the mechanical clock 210 and reducing the phenomenon of the mechanical clock running slow due to long-term operation. This automatic winding device can automatically wind the mechanical clock 210 at regular intervals, keeping the mechanical clock 210 in a continuously running state. This avoids problems such as lubricating oil solidification and parts rusting that cause the mechanical clock to stop when the user forgets to wind it for a long time, thus increasing the service life of the mechanical clock. It can also be used when the mechanical clock runs slow due to wear between parts during long-term operation. By increasing the number of rotations of the geared motor 205, the winding torque is increased to compensate for the timekeeping error of the mechanical clock and improve its accuracy.

[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mechanical clock automatic winding device comprising a main frame (1), characterized in that, An automatic winding mechanism (2) is provided inside the main frame (1). The automatic winding mechanism (2) includes a device cavity (201), and a control panel (202) is fixed at the front end of the device cavity (201). A control module (203) is fixed on the inner wall of the control panel (202). A power module (204) is fixed at the bottom of the inner wall of the device cavity (201). A geared motor (205) is provided on one side of the power module (204), and an output shaft (206) is axially connected to the top surface of the geared motor (205). A docking groove (207) is provided at the top of the output shaft (206). Anti-slip grooves (208) are arranged around the inner wall of the docking groove (207). A spring shaft (209) is docked at the top of the docking groove (207).

2. A mechanical clock automatic winding device according to claim 1, characterized in that The top end of the spring shaft (209) is connected to a mechanical clock (210). The control panel (202) and the control module (203) are fixedly connected, and the control module (203) is electrically connected to the power module (204) and the geared motor (205) through wiring.

3. A mechanical clock automatic winding device according to claim 1, characterized in that The control module (203) is used to control the start-up time of the geared motor (205) and monitor the load current of the geared motor (205).

4. A mechanical clock automatic winding device according to claim 1, characterized in that The bottom end of the mechanical clock (210) engages with the top surface of the main frame (1), and the mechanical clock (210) is aligned with the center of the output shaft (206) through the bottom spring shaft (209).

5. A mechanical clock automatic winding device according to claim 1, characterized in that, The output shaft (206) is inserted into the spring shaft (209) through the docking groove (207), and the anti-slip groove (208) is equidistantly arranged around the inner wall of the docking groove (207).

6. A mechanical clock automatic winding device according to claim 1, characterized in that The main frame (1) includes an outer box (101), and the outer walls on both sides of the outer box (101) are provided with grip grooves (102). A pad frame (103) is fixed at the bottom of the outer box (101), and a control panel (202) is fixed on the outer wall of the outer box (101).

7. A mechanical clock automatic winding device according to claim 6, characterised in that, The grip groove (102) is recessed along both sides of the outer wall of the outer box (101), and the pad frame (103) is evenly attached to the bottom of the outer box (101).

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