Mechanical watch case scratch polishing repair device

Abstract

The present application relates to watch polishing technical field, specifically to a kind of mechanical watch shell scratch polishing repair equipment, including polishing barrel and hinge in the top of polishing barrel barrel cover, the middle part of the inner bottom wall of polishing barrel is equipped with mounting seat, watch fixing rod is detachably installed on mounting seat, the inside of polishing barrel is equipped with water polishing mechanism;The water polishing mechanism includes a plurality of evenly distributed in the inside of polishing barrel stirring rod, stirring rod is distributed in the outside of mounting seat and each stirring rod is rotatably installed.The watch of removing internal element is tied on watch fixing rod, then watch fixing rod is placed in the middle part of polishing barrel, after closing barrel cover and starting equipment, stirring rod high-speed rotation drives the rotation of water body in the inside of polishing barrel, in turn, the polishing agent carried in water flow is driven to polish watch shell and watchband, can more comprehensively polish each position and dead angle of watch, and efficiency is higher, and the number of watch that can be handled in single time is more.

Description

Technical Field

[0001] This invention relates to the field of watch polishing technology, specifically to a device for polishing and repairing scratches on mechanical watch cases. Background Technology

[0002] Mechanical watches are known for their exquisite craftsmanship and beautiful appearance. Compared to quartz and electronic watches, mechanical watches are generally considered to be of higher quality. The manufacturing process for mechanical watches is highly demanding because they do not have batteries; instead, they are powered by a mainspring within the movement. The mainspring drives gears, which in turn move the hands. With proper movement maintenance, a mechanical watch can easily last for over a century. The movement is what gives a mechanical watch its quality and showcases its superb craftsmanship. As a precision mechanical timekeeping instrument and a decorative item, a mechanical watch possesses both practicality and aesthetic appeal.

[0003] Based on these characteristics, mechanical watches are highly sought after in the resale market. Many dealers collect secondhand or discarded mechanical watches from well-known brands, restore and refurbish them to function, and then resell them for considerable profit. Currently, mechanical watch repair is typically done by skilled technicians using handheld polishing tools to repair the watch case and strap. This requires considerable expertise, and repairing a single watch is time-consuming. Furthermore, the varying designs and cleaning difficulties, including hard-to-reach areas, make the repair process quite complex, especially when dealing with large volumes of watches. The current lack of equipment and tools for mass repair of mechanical watches hinders efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a mechanical watch case scratch polishing and repair device, which can effectively solve the problem of low efficiency when repairing mechanical watches in batches in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mechanical watch case scratch polishing and repair device includes a polishing barrel and a barrel cover hinged to the top of the polishing barrel. The inner bottom wall of the polishing barrel is provided with a mounting base in the middle. A watch fixing rod is detachably installed on the mounting base. The polishing barrel is provided with a water polishing mechanism inside.

[0007] The water polishing mechanism includes multiple stirring rods evenly distributed inside the polishing barrel. The stirring rods are located on the outside of the mounting base and are rotatably mounted. Each stirring rod has an assembly head at its top. Multiple assembly discs corresponding to the positions of the assembly heads are rotatably mounted on the inner surface of the barrel lid. A drive motor that drives each assembly disc to rotate is mounted on the outer surface of the barrel lid. When the barrel lid is closed, the drive motor is turned on to drive each stirring rod to rotate. The polishing barrel contains polishing agent and water. When the stirring rods rotate, they drive the water flow and polishing agent to polish the watch.

[0008] After the water polishing mechanism is activated (i.e., the device is powered on), each assembly disc begins to rotate, driving each agitator to rotate at high speed. Sufficient water and an appropriate amount of polishing compound are poured into the polishing barrel. The rotation of each agitator causes the water to flow rapidly within the barrel, carrying the polishing compound quickly through the surface of the watch case and strap, as well as into crevices and hard-to-reach areas, effectively polishing the watch case and strap. In particular, each agitator is located outside the watch fixing rod. The high-speed rotation of the agitator causes the water and polishing compound to rotate around it, while the watch case, fixed to the watch fixing rod, is precisely located on the outer edge of the polishing compound's rotation range. This allows the polishing compound to effectively contact the watch, resulting in efficient polishing of the watch case and strap.

[0009] In the aforementioned mechanical watch case scratch polishing and repair equipment, the assembly head is a hexagonal prism, and the assembly plate has an assembly hole in the middle that matches the assembly head. The edges of the hexagonal prism and the assembly hole are rounded.

[0010] In the aforementioned mechanical watch case scratch polishing and repair equipment, the watch fixing rod includes a rod body, a plug at the bottom end of the rod body, a socket adapted to the plug on the mounting base, multiple fixing grooves evenly spaced on the rod body, an anti-slip pad on the outer wall of each fixing groove, and a handle at the top end of the rod body.

[0011] In the aforementioned mechanical watch case scratch polishing and repair equipment, the plug is provided with an elastic protrusion, and the inner wall of the socket is provided with a locking hole that matches the elastic protrusion.

[0012] In the aforementioned mechanical watch case scratch polishing and repair equipment, the inner wall of the polishing barrel is provided with partition plates equal in number to the number of stirring rods, and the partition plates separate each stirring rod from one side of the barrel wall.

[0013] In the aforementioned mechanical watch case scratch polishing and repair equipment, each of the partition plates is fitted with a sliding sleeve at its bottom. The bottom end of the sliding sleeve is equipped with a water-lifting plate. The water-lifting plate is elastically installed by a spring. When the spring is not subjected to external force, the water-lifting plate is higher than the bottom wall of the polishing barrel. A top rod connected to the side of the sliding sleeve is vertically inserted into the partition plate. A wedge-shaped pressure plate is rotatably installed on the inner surface of the barrel cover. When the drive motor rotates, it drives the wedge-shaped pressure plate to rotate. When the wedge-shaped pressure plate rotates, it squeezes each top rod downward in sequence. After the wedge-shaped pressure plate disengages from the top rod, the water-lifting plate rises instantly.

[0014] In the aforementioned mechanical watch case scratch polishing and repair equipment, a limiting groove is provided on the side wall of the partition plate, and a limiting piece adapted to the limiting groove is provided on the side wall of the sliding sleeve. The limiting piece is fixedly connected to the bottom of the top rod.

[0015] In the aforementioned mechanical watch case scratch polishing and repair equipment, a fixing plate is provided on the side wall of the partition plate, and the spring is connected between the fixing plate and the water lifting plate.

[0016] In the aforementioned mechanical watch case scratch polishing and repair equipment, the inside of the barrel cover is provided with a gear cavity, the drive shaft of the drive motor extends into the gear cavity and is equipped with a main gear, each of the assembly discs extends into the gear cavity and is equipped with a secondary gear that meshes with the main gear, an inner ring gear that meshes with each secondary gear is rotatably installed on the inner surface of the barrel cover, and the wedge-shaped pressure plate is fixedly connected to the lower surface of the inner ring gear.

[0017] In the aforementioned mechanical watch case scratch polishing and repair equipment, the length of the horizontal plane of the wedge-shaped pressure plate is not less than 20 centimeters.

[0018] Compared with existing technologies, this invention attaches a watch with its internal components removed to a watch fixing rod, then places the watch fixing rod in the middle of the polishing barrel. After closing the barrel lid and turning on the device, the stirring rod rotates at high speed, causing the water inside the polishing barrel to rotate. This, in turn, causes the polishing agent carried in the water flow to polish the watch case and strap. This allows for more comprehensive polishing of all parts and dead corners of the watch, and is more efficient, allowing for the processing of a larger number of watches in a single operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention when it is opened;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention when it is closed;

[0022] Figure 3 This is a side view of the invention when it is opened;

[0023] Figure 4 This is a front view of the invention when it is opened;

[0024] Figure 5 This is a top view of the invention when it is opened;

[0025] Figure 6 The watch fixing rod of the present invention;

[0026] Figure 7 This is a partial structural diagram of the interior of the polishing barrel of the present invention;

[0027] Figure 8 This is a front view of the invention when it is closed;

[0028] Figure 9 for Figure 8 A sectional view of AA.

[0029] The labels in the diagram represent: 1. Polishing barrel; 2. Barrel lid; 201. Gear cavity; 3. Drive motor; 301. Main gear; 4. Mounting base; 5. Watch fixing rod; 501. Rod body; 502. Plug; 503. Fixing groove; 504. Anti-slip pad; 505. Handle; 6. Stirring rod; 7. Assembly head; 8. Assembly plate; 801. Secondary gear; 9. Divider plate; 10. Top rod; 11. Inner ring gear; 12. Wedge-shaped pressure plate; 13. Sliding sleeve; 14. Water lifting plate; 15. Spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The present invention will be further described below with reference to embodiments.

[0032] Example: A polishing and repair device for scratches on mechanical watch cases includes a polishing barrel 1 and a barrel cover 2 hinged to the top of the polishing barrel 1. When the barrel cover 2 is closed, a sealed space is formed inside the polishing barrel 1. A mounting base 4 is provided in the middle of the inner bottom wall of the polishing barrel 1. A watch fixing rod 5 is detachably mounted on the mounting base 4. A water polishing mechanism is provided inside the polishing barrel 1. After removing the internal components of the old watch, the outer shell and the watch strap are tied to the watch fixing rod 5. Then, the watch fixing rod 5 is placed on the mounting base 4, and the water polishing mechanism is turned on to polish each old watch.

[0033] The water polishing mechanism includes multiple stirring rods 6 evenly distributed inside the polishing barrel 1. The stirring rods 6 are distributed on the outside of the mounting base 4 and each stirring rod 6 is rotatably mounted. Each stirring rod 6 has an assembly head 7 at its top. Multiple assembly discs 8 corresponding to the positions of the assembly heads 7 are rotatably mounted on the inner surface of the barrel lid 2. A drive motor 3 that drives each assembly disc 8 to rotate is mounted on the outer surface of the barrel lid 2. When the barrel lid 2 is closed, the drive motor 3 is turned on to drive each stirring rod 6 to rotate. The polishing barrel 1 contains polishing agent and water. When the stirring rods 6 rotate, they drive the water flow and polishing agent to polish the watch.

[0034] After the water polishing mechanism is activated (i.e., the power to the device is turned on), each assembly disc 8 begins to rotate, driving each stirring rod 6 to rotate at high speed. Sufficient water and an appropriate amount of polishing agent are poured into the polishing barrel 1. The rotation of each stirring rod 6 causes the water to flow rapidly within the polishing barrel 1. The water flow carries the polishing agent quickly through the surface of the watch case and strap, as well as through various gaps and hard-to-reach areas, effectively polishing the watch case and strap. In particular, each stirring rod 6 is located outside the watch fixing rod 5. The high-speed rotation of the stirring rod 6 causes the water and polishing agent to rotate around it. The watch case, fixed to the watch fixing rod 5, is precisely located outside the rotation range of the polishing agent, allowing the polishing agent to effectively contact the watch, thus enabling the watch case and strap to be efficiently polished. The polishing agent in this invention is a physical polishing agent, which can be selected according to actual needs, including but not limited to common varieties such as quartz sand, diamond micron powder, and alumina abrasive.

[0035] Reference Figure 1The assembly head 7 is a hexagonal prism, and the assembly plate 8 has an assembly hole in the center that fits the assembly head 7. Both the hexagonal prism and the assembly hole have rounded corners. Furthermore, the top of the assembly head 7 is chamfered to allow the assembly hole to fit more smoothly onto the assembly head 7. When the lid 2 is closed, each assembly plate 8 corresponds to each assembly head 7, and the assembly hole fits onto the assembly head 7 to connect with it. When the assembly plate 8 rotates, it drives the assembly head 7 to rotate synchronously. The rounded and chamfered corners on the assembly head 7 and the assembly hole allow for a smoother fit when the assembly hole fits onto the assembly head 7. Additionally, because the assembly plate 8 can rotate freely when the equipment is not powered, even if the assembly hole and the assembly head 7 are not perfectly aligned, both the assembly plate 8 and the assembly head 7 can still rotate slightly when the assembly hole fits onto the assembly head 7, allowing the assembly plate 8 to smoothly assemble with the assembly head 7. The hexagonal prism structure of the assembly head 7 also makes this assembly process smoother.

[0036] Reference Figure 6 The watch fixing rod 5 includes a rod body 501, with a plug 502 at the bottom end of the rod body 501. The mounting base 4 has a socket adapted to the plug 502. Multiple fixing slots 503 are evenly spaced on the rod body 501, and each fixing slot 503 has an anti-slip pad 504 on its outer wall. A handle 505 is located at the top of the rod body 501. To place the watch fixing rod 5, simply insert the plug 502 into the socket on the mounting base 4. The watch case is then secured to the fixing slot 503 via its strap. The anti-slip pads 504 enhance the watch's stability. Ideally, each watch should be positioned a certain distance from the upper and lower surfaces of the fixing slot 503 so that the polishing compound can reach this position during water polishing, ensuring a thorough and comprehensive polishing of the watch case.

[0037] Furthermore, the plug 502 is provided with a flexible protrusion, and the inner wall of the socket is provided with a locking hole that matches the flexible protrusion. After the watch fixing rod 5 is inserted into the mounting base 4, the flexible protrusion on the plug 502 is locked in the locking hole, preventing the watch fixing rod 5 from moving upward and falling off, thus improving the stability during operation. After the operation is completed, the operating handle 505 can be used to forcefully lift the watch fixing rod 5 upward, which will deform the flexible protrusion and remove it from the mounting base 4. The operation is simple and convenient.

[0038] Reference Figure 1 The inner wall of the polishing barrel 1 is provided with partition plates 9, which are the same number as the stirring rods 6. The partition plates 9 separate each stirring rod 6 from one side of the barrel wall of the polishing barrel 1.

[0039] The partition plate 9 forms a relatively enclosed space around each stirring rod 6, which reduces mutual interference of the vortex formed by the high-speed rotation of the stirring rod 6, thereby forming a more stable vortex to carry the polishing agent to polish the watch case and strap, improving the polishing effect and efficiency.

[0040] Reference Figure 7 Each partition plate 9 has a sliding sleeve 13 fitted at its bottom. The bottom end of the sliding sleeve 13 is equipped with a water lifting plate 14. The water lifting plate 14 is elastically installed by a spring 15. When the spring 15 is not subjected to external force, the water lifting plate 14 is higher than the bottom wall of the polishing barrel 1. A top rod 10 connected to the side of the sliding sleeve 13 is vertically inserted on the partition plate 9. A wedge-shaped pressure plate 12 is rotatably installed on the inner surface of the barrel cover 2. When the drive motor 3 rotates, it drives the wedge-shaped pressure plate 12 to rotate. When the wedge-shaped pressure plate 12 rotates, it squeezes each top rod 10 downward in sequence. After the wedge-shaped pressure plate 12 is separated from the top rod 10, the water lifting plate 14 rises instantly.

[0041] When the equipment is working, the wedge-shaped pressure plate 12 is driven by the drive motor 3 to rotate. When the spring 15 is not under external force, the water lifting plate 14 leaves the inner bottom wall of the polishing tank 1. When the wedge-shaped pressure plate 12 reaches the position of the top rod 10 and gradually presses down on the top rod 10, the water lifting plate 14 will gradually move down until it contacts the inner bottom wall of the polishing tank 1. As the wedge-shaped pressure plate 12 continues to rotate, the wedge-shaped pressure plate 12 will suddenly detach from the top rod 10. At this time, the top rod 10 is no longer pressed and is instantly lifted under the restoring force of the spring 15. The water lifting plate 14 is also instantly lifted, bringing up the polishing agent that may have settled at the bottom of the polishing tank 1 and remixing it into the vortex formed by the stirring rod 6, increasing the content of polishing agent in the water flow and ensuring the polishing effect.

[0042] Reference Figure 7 A limiting groove is provided on the side wall of the partition plate 9, and a limiting piece adapted to the limiting groove is provided on the side wall of the sliding sleeve 13. The limiting piece is fixedly connected to the bottom of the top rod 10. The position and angle of the sliding sleeve 13 are limited by the cooperation of the limiting piece and the limiting groove, so that it can move vertically up and down stably without detachment or tilting. Connecting the limiting piece to the top rod 10 can make the top rod 10 drive the water lifting plate 14 to rise and fall synchronously, and it is relatively stable during operation.

[0043] Reference Figure 7 A fixing plate is provided on the side wall of the partition plate 9, and a spring 15 is connected between the fixing plate and the water lifting plate 14. The water lifting plate 14 is elastically installed by the fixing plate on the partition plate 9, so that it has an upward restoring force.

[0044] Reference Figure 9 The barrel lid 2 has a gear cavity 201 inside. The drive shaft of the drive motor 3 extends into the gear cavity 201 and is equipped with a main gear 301. Each assembly plate 8 extends into the gear cavity 201 and is equipped with a secondary gear 801 that meshes with the main gear 301. An inner ring gear 11 that meshes with each secondary gear 801 is rotatably mounted on the inner surface of the barrel lid 2. A wedge-shaped pressure plate 12 is fixedly connected to the lower surface of the inner ring gear 11.

[0045] After the drive motor 3 is turned on, it drives the main gear 301 to rotate. The main gear 301 drives each auxiliary gear 801 to rotate, so each assembly plate 8 rotates in the same direction. Since each auxiliary gear 801 meshes with the outermost inner ring gear 11, the inner ring gear 11 rotates as well. The wedge-shaped pressure plate 12 rotates while the equipment is working. The rotation of the wedge-shaped pressure plate 12 will contact each push rod 10 in turn, so that the water lifting plate 14 at that position will first descend and then rise instantly, so that the polishing agent settled at the bottom of the polishing barrel 1 will be carried up, improving the utilization rate of the polishing agent and also improving the polishing efficiency.

[0046] Reference Figure 1 The length of the horizontal plane of the wedge-shaped pressure plate 12 is not less than 20 cm. The wedge-shaped pressure plate 12 has an inclined surface, and behind the inclined surface is a horizontal surface (in the state when the lid 2 is closed). This inclined surface allows the wedge-shaped pressure plate 12 to gradually press down the top rod 10 when it contacts the top of the top rod 10, thereby driving the sliding sleeve 13 and the water lifting plate 14 to move down. When its horizontal surface part contacts the top rod 10, the top rod 10 and the water lifting plate 14 remain stationary. Therefore, setting this horizontal surface part to be longer can increase the time that the water lifting plate 14 stays at the bottom, and more polishing agent will settle on the water lifting plate 14. When the water lifting plate 14 is lifted up instantly, it can carry more polishing agent, thus improving the use effect.

[0047] When using this invention, firstly, the internal components of the watches that need to be polished in batches are removed (generally, the internal components need to be repaired and maintained). Then, each watch is fixed in the fixing groove 503, and its height is fixed by the anti-slip rubber pad 504, so that the top and bottom of the watch are left with a certain amount of space to ensure that the polishing agent can reach the side of the watch for thorough polishing. Then, the watch fixing rod 5 is inserted into the mounting base 4, and the water level and polishing agent level in the polishing barrel 1 are checked, and the water level and polishing agent are adjusted accordingly. Then, the barrel lid 2 is closed and sealed (the specific sealing and locking methods are not described in detail in this invention, but are quite common). The assembly head 7 at the top of the stirring rod 6 is combined with the assembly plate 8 to complete the assembly. After the drive motor 3 is turned on, the stirring rod 6 rotates at high speed, driving the water to flow at high speed inside the polishing barrel 1, carrying the polishing agent to polish the watch case and strap. This can quickly complete the polishing of the exterior of multiple old watches, significantly improving the polishing efficiency.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for polishing and repairing scratches on a mechanical watch case, characterized in that, It includes a polishing barrel (1) and a barrel cover (2) hinged to the top of the polishing barrel (1). The inner bottom wall of the polishing barrel (1) is provided with a mounting base (4). A watch fixing rod (5) is detachably installed on the mounting base (4). The polishing barrel (1) is provided with a water polishing mechanism inside. The water polishing mechanism includes multiple stirring rods (6) evenly distributed inside the polishing barrel (1). The stirring rods (6) are distributed on the outside of the mounting base (4) and each stirring rod (6) is rotatably mounted. Each stirring rod (6) has an assembly head (7) at its top. Multiple assembly discs (8) corresponding to the positions of the assembly heads (7) are rotatably mounted on the inner surface of the barrel cover (2). A drive motor (3) that drives each assembly disc (8) to rotate is mounted on the outer surface of the barrel cover (2). When the barrel cover (2) is closed, the drive motor (3) can be turned on to drive each stirring rod (6) to rotate. The polishing barrel (1) contains polishing agent and water. When the stirring rods (6) rotate, they drive the water flow and polishing agent to polish the watch. The inner wall of the polishing barrel (1) is provided with partition plates (9) in the same number as the stirring rods (6), and the partition plates (9) separate each stirring rod (6) from one side of the barrel wall of the polishing barrel (1). Each of the partition plates (9) is fitted with a sliding sleeve (13) at its bottom. The bottom end of the sliding sleeve (13) is provided with a water lifting plate (14). The water lifting plate (14) is elastically installed by a spring (15). When the spring (15) is not subjected to external force, the water lifting plate (14) is higher than the bottom wall of the polishing barrel (1). A top rod (10) connected to the side of the sliding sleeve (13) is vertically inserted on the partition plate (9). A wedge-shaped pressure plate (12) is rotatably installed on the inner surface of the barrel cover (2). When the drive motor (3) rotates, it drives the wedge-shaped pressure plate (12) to rotate. When the wedge-shaped pressure plate (12) rotates, it squeezes each top rod (10) downward in sequence. After the wedge-shaped pressure plate (12) is separated from the top rod (10), the water lifting plate (14) rises instantly.

2. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The assembly head (7) is a hexagonal prism, and the assembly plate (8) has an assembly hole in the middle that is adapted to the assembly head (7). The edges of the hexagonal prism and the assembly hole are rounded.

3. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The watch fixing rod (5) includes a rod body (501), a plug (502) is provided at the bottom end of the rod body (501), a socket adapted to the plug (502) is provided on the mounting base (4), a plurality of fixing grooves (503) are provided at equal intervals on the rod body (501), an anti-slip rubber pad (504) is provided on the outer wall of each fixing groove (503), and a handle (505) is provided at the top end of the rod body (501).

4. The mechanical watch case scratch polishing and repair equipment according to claim 3, characterized in that, The plug (502) is provided with an elastic protrusion, and the inner wall of the socket is provided with a locking hole that matches the elastic protrusion.

5. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The partition plate (9) has a limiting groove on its side wall, and the sliding sleeve (13) has a limiting piece on its side wall that is adapted to the limiting groove. The limiting piece is fixedly connected to the bottom of the top rod (10).

6. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The partition plate (9) has a fixing plate on its side wall, and the spring (15) is connected between the fixing plate and the water lifting plate (14).

7. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The barrel cover (2) has a gear cavity (201) inside. The drive shaft of the drive motor (3) extends into the gear cavity (201) and is equipped with a main gear (301). Each assembly plate (8) extends into the gear cavity (201) and is equipped with a secondary gear (801) that meshes with the main gear (301). An inner ring gear (11) that meshes with each secondary gear (801) is rotatably mounted on the inner surface of the barrel cover (2). The wedge-shaped pressure plate (12) is fixedly connected to the lower surface of the inner ring gear (11).

8. The mechanical watch case scratch polishing and repair equipment according to claim 1, characterized in that, The length of the horizontal plane of the wedge-shaped pressure plate (12) is not less than 20 cm.

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