Polishing equipment for wine jar

Abstract

The present invention relates to the technical field of wine jar polishing, and specifically discloses a wine jar polishing device, comprising a shell, a driving component arranged inside the shell, a driving disk arranged outside the shell and driven by the driving component, and a fixed contact component arranged on the driving disk for inverted fixing of the wine jar; a circular groove body is arranged on the outer periphery of the shell, and a plurality of sliding blocks are slidably connected in the circular groove body, and an imitator for determining the direction of the outer surface of the wine jar and a polishing brush for achieving the same shape as the imitator are respectively installed on the sliding blocks. When the polishing brush acts on the outer surface of the wine jar, the imitator is manually removed. The device solves the problem that due to the presence of irregular areas in the wine jar, traditional polishing equipment cannot polish the above-mentioned irregular areas, thereby resulting in the wine jar being unable to be fully polished.

Description

Technical Field

[0001] The present application relates to the technical field of wine jar polishing, and specifically discloses a polishing device for wine jars. Background Art

[0002] The whole process of wine jar production usually includes the following key steps:

[0003] Preparation: Choose appropriate clay or sand as raw materials. The clay must be fine in texture, with high plasticity and glaze properties. Process the clay, pound it into powder, and add appropriate amount of water to stir;

[0004] Forming: Pour the stirred mud into the wine jar model, and shape the mud into the shape of the wine jar by shaping, carving and other techniques to ensure that the shape, size, thickness and other indicators of the wine jar meet the requirements;

[0005] Drying and firing: After the pottery is formed, the jar needs to be dried to allow the water in the mud to evaporate. During the drying process, it is necessary to avoid direct sunlight to prevent the surface of the jar from cracking or discoloration. After drying, the jar is placed in a kiln and fired at high temperature to allow the minerals in the clay to precipitate and evenly distribute, thereby improving the hardness, durability and thermal insulation of the pottery.

[0006] Then comes the glazing and high-temperature firing. After the jar is fired, a very core operation is polishing. First, during the polishing process, the tiny flaws and holes on the surface of the jar can be repaired and sealed, thereby enhancing the sealing of the jar, reducing the risk of wine leakage, and ensuring that the wine will not be lost due to leakage during storage.

[0007] Secondly, the surface of the polished wine jar is smooth and not easy to retain stains and impurities. It can be kept clean by just rinsing with clean water or wiping gently during daily cleaning, which reduces the difficulty and workload of cleaning, and is more conducive to maintaining the sanitary condition of the wine jar and preventing bacteria from breeding and affecting the quality of the wine.

[0008] After polishing, the surface of the wine jar is smoother and flatter, with better gloss and reflective effect, which can bring visual enjoyment to people, make the wine jar more ornamental, and meet people's aesthetic needs for high-quality wine vessels;

[0009] China Publication No. CN215659666U discloses a polishing device for making wine jars, including a roller. A connecting rod is provided on the top of the U-shaped frame, and a roller is sleeved on the outer side of the connecting rod. A handle is provided at the middle position below the U-shaped frame, and a rubber sleeve is sleeved on the outer side of the handle. A hanging ring is provided at the bottom end of the handle. The polishing device for making wine jars has a simple structure and is easy to use. It is convenient for local trimming and polishing of the outside of the wine jar, which is beneficial to improving the polishing efficiency of the wine jar and the quality of the finished wine jar. The hanging ring facilitates the hanging and storage of the device, and a rubber sleeve is provided on the outside of the handle to prevent slipping.

[0010] The above scheme is a manual polishing operation equipment, which is inefficient. In addition, the roller as a polishing piece is insufficient for the wine jar, because the wine jar does not have irregular areas. Such irregular areas will make the roller polishing ineffective, that is, the irregular areas cannot be polished, and ultimately the wine jar cannot be fully polished, resulting in defects in the product appearance.

[0011] In view of this, the inventor proposes a polishing device for wine jars. Summary of the invention

[0012] The purpose of the present invention is to solve the problem that due to the presence of irregular areas in the wine jar, traditional polishing equipment is unable to polish the above-mentioned irregular areas, thereby resulting in the wine jar being unable to be fully polished.

[0013] In order to achieve the above object, the present invention provides the following basic scheme:

[0014] A polishing device for a wine jar, comprising a housing, a driving assembly arranged inside the housing, a driving disc arranged outside the housing and driven by the driving assembly, and a fixed contact assembly arranged on the driving disc and used for inverted fixing of the wine jar;

[0015] A circular groove is provided on the outer periphery of the shell, and a plurality of sliding blocks are slidably connected in the circular groove. The sliding blocks are respectively equipped with an imitator for determining the direction of the outer surface of the wine jar and a polishing brush for achieving a shape identical to that of the imitator. When the polishing brush acts on the outer surface of the wine jar, the imitator is manually removed.

[0016] The principles and effects of this basic solution are:

[0017] 1. Compared with the prior art, the device has a simple structure and an ingenious design. The device is a comprehensive polishing device for the outer surface of the wine jar, which can solve the problem that the wine jar cannot be fully polished because traditional polishing equipment cannot polish the irregular areas of the wine jar.

[0018] 2. Compared with the prior art, the present device adopts an inverted wine jar to obtain an opening at the top of the wine jar, and uses the opening to fix the wine jar. When the wine jar is fixed, the wine jar can be rotated. The advantage of the rotation of the wine jar compared to the stationary wine jar is that the rotation of the wine jar can make the polishing brush stationary. When the polishing brush is stationary, the polishing brush can better adapt to the irregularities on the outer surface of the wine jar, thereby solving the problem that the traditional polishing equipment cannot polish the irregular areas in the wine jar, resulting in the wine jar being unable to be fully polished.

[0019] 3. Compared with the prior art, the device is provided with a simulator, which preferentially determines the contour of the outer surface of the wine jar through the simulator, and can compare the simulator with the polishing brush, thereby completing the consistency of the polishing brush with the simulator, and finally allowing the polishing brush to act on the entire outer surface of the wine jar.

[0020] 4. Compared with the prior art, a rotating assembly is provided in the present device, and the simulator and the polishing brush can be moved closer to or farther away from each other in the rotating assembly, thereby quickly realizing the comparison between the simulator and the polishing brush. When the comparison between the polishing brush and the simulator is completed, the simulator can be quickly removed, thereby not affecting the rotation of the wine jar. The rotation of the wine jar contacts the polishing brush, thereby realizing the polishing treatment of the outer surface of the wine jar. Since the polishing brush is set in advance, the polishing brush can act on various parts of the wine jar, thereby completing the comprehensive polishing treatment of the wine jar.

[0021] Furthermore, mounting blocks are evenly arranged around the shell, the mounting blocks are integrally formed with the bottom of the shell, the free ends of the mounting blocks are fixedly connected to support columns, the support columns are provided with mounting grooves, the circular groove body is fixedly connected to the mounting grooves, the circular groove body is provided with circular grooves, the inner wall of the circular groove is symmetrically provided with clamping grooves, and clamping blocks are provided at both ends of the sliding block, and the clamping blocks slide in the clamping grooves. Stable installation of the shell and the circular groove body is achieved, and the sliding block slides in the circular groove body by sliding the clamping block in the clamping groove, thereby changing the position of the subsequent imitator and polishing brush.

[0022] Furthermore, the driving assembly includes a motor bracket arranged at the bottom of the housing, a motor mounted on the motor bracket, a coupling arranged on the motor output shaft, and a connecting plate coaxially connected to the free end of the coupling, wherein the connecting plate is detachably connected to the driving plate, so that the driving plate can rotate by itself, and since the connecting plate is detachably connected to the driving plate, the driving plate can be easily disassembled.

[0023] Furthermore, the size of the connecting disk is smaller than that of the driving disk, a groove is formed at the bottom of the driving disk, and a plurality of mounting grooves are formed at the bottom of the groove, the depth of the groove is equal to the depth of the connecting disk, and one end of the connecting disk close to the groove is fixedly connected with a card block whose number and position correspond one-to-one to the mounting groove, and the card block is engaged with the mounting groove.

[0024] Further, the fixed contact assembly is arranged on the end surface of the driving disk away from the groove, and the fixed contact assembly includes a cylinder group, an inner contact group of a wine jar and an outer contact group of a wine jar, the outer contact group of the wine jar is a flexible ring body and is arranged on the inner disk wall of the driving disk, the cylinder group includes a first cylinder fixedly connected to the driving disk and a contact pad arranged at the protruding end of the first cylinder, the outer contact group of the wine jar includes a accommodating disk fixedly connected to the driving disk and a plurality of second cylinders evenly arranged inside the accommodating disk, the protruding end of the second cylinder is provided with an extrusion rod, the extrusion rod and the flexible ring body are in the same plane and both act on the jar mouth of the wine jar, so as to fix the inverted wine jar, avoid the shaking of the wine jar after inversion, and facilitate the rotation of the wine jar.

[0025] Furthermore, a limiting assembly for limiting the position of the simulator and the polishing brush is provided in the circular groove body, and the limiting assembly is composed of a plurality of limiting blocks, and the limiting blocks are placed in the circular groove to limit the movement of the simulator and the polishing brush.

[0026] Furthermore, the simulator includes a first rod coaxially connected to the sliding block, a plurality of threaded holes uniformly opened on the first rod, and a contact rod threadedly connected to the threaded holes, and one end of the contact rod is in contact with the outer surface of the wine jar through the threaded connection to ensure the outer surface of the wine jar is in a straight line.

[0027] Furthermore, after one end of the contact rod contacts the outer surface of the wine jar, the simulator is moved close to the polishing brush and the limiting assembly is used to limit the simulator and the polishing brush, the polishing brush includes a second rod coaxially connected to the sliding block, a through groove extending through the second rod, a connecting frame detachably connected to the through groove, and a plurality of polishing brush bodies detachably connected to the connecting frame, wherein the plurality of polishing brush bodies form a polishing brush having the same shape as the simulator.

[0028] Furthermore, the polishing brush body includes a frame, connecting screws, and a plurality of mounting points arranged inside the frame and a polishing bristle group connected to the mounting points. The position of the frame is fixed by connecting screws, and a polishing bristle group of appropriate length is selected and installed on the mounting points, so that the polishing brush body composed of the polishing brush has the same shape as the imitator.

[0029] Furthermore, the polishing bristle brush filament group is a mixed bristle brush filament group of a nylon filament group and an abrasive filament group. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic structural diagram of a polishing device for a wine jar proposed in an embodiment of the present application is shown;

[0032] Figure 2 A schematic diagram showing the connection of a sliding block of a wine jar polishing device according to an embodiment of the present application is shown;

[0033] Figure 3 A schematic diagram showing the internal structure of a housing in a polishing device for a wine jar proposed in an embodiment of the present application is shown;

[0034] Figure 4 A schematic diagram of an inverted wine jar of a wine jar polishing device proposed in an embodiment of the present application is shown;

[0035] Figure 5 A schematic diagram showing the use of a threaded rod in a polishing device for a wine jar proposed in an embodiment of the present application is shown;

[0036] Figure 6 A schematic diagram of the installation of a polishing brush in a polishing device for a wine jar proposed in an embodiment of the present application is shown;

[0037] Figure 7 A schematic structural diagram of a polishing brush in a polishing device for a wine jar proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0038] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0039] The figure marks in the drawings of the specification include: shell 1, mounting block 2, support column 3, mounting groove 4, circular groove body 5, circular groove 6, second rod 7, through groove 8, sliding block 9, limit block 10, threaded hole 11, first rod 12, contact rod 13, clamping groove 14, clamping block 15, inner disk wall 16, flexible ring body 17, first cylinder 18, contact pad 19, accommodating disk 20, extrusion rod 21, connecting disk 22, motor bracket 23, motor 24, coupling 25, clamping block 26, wine jar 27, second cylinder 28, connecting frame 29, fixing screw 30, polishing brush wire group 31, polishing brush body 32, connecting screw 33, mixed brush wire group 34, frame 35, mounting point 36.

[0040] Implementation example Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown:

[0041] A polishing device for a wine jar, comprising a housing 1, a driving assembly arranged inside the housing 1, a driving disc arranged outside the housing 1 and driven by the driving assembly, and a fixed contact assembly arranged on the driving disc for inverted fixing of a wine jar 27;

[0042] A circular groove 5 is provided on the outer periphery of the housing 1, and a plurality of sliding blocks 9 are slidably connected in the circular groove 5. The sliding blocks 9 are respectively mounted with an imitator for determining the direction of the outer surface of the wine jar 27 and a polishing brush for achieving a shape identical to that of the imitator.

[0043] Regarding the overall structure, since the wine jar 27 rotates on its own in this device, it is necessary to ensure the connection stability of the wine jar 27 before it rotates on its own. Therefore, the stability of the housing 1 is determined first:

[0044] Specifically: the housing 1 is evenly arranged with mounting blocks 2, the mounting blocks 2 are integrally formed with the bottom of the housing 1, and the free ends of the mounting blocks 2 are fixedly connected with support columns 3. The stability of the housing 1 is ensured by the integral formation of the mounting blocks 2 and the bottom of the housing 1 and the provision of the support columns 3;

[0045] In order to realize the movement of the simulator and the polishing brush, a mounting groove 4 is provided on the support column 3, a circular groove body 5 is fixedly connected to the mounting groove 4, a circular groove 6 is provided on the circular groove body 5, and a clamping groove 14 is symmetrically provided on the inner wall of the circular groove 6. Clamping blocks 15 are provided at both ends of the sliding block 9, and the clamping blocks 15 slide in the clamping groove 14. The housing 1 and the circular groove body 5 are stably installed, and the sliding block 9 slides in the circular groove body 5 by sliding the clamping blocks 15 in the clamping groove 14, thereby changing the positions of the subsequent simulator and the polishing brush.

[0046] like Figure 3 As shown, since the driving disc needs to rotate, a driving assembly is provided. Regarding the driving assembly:

[0047] The driving assembly includes a motor bracket 23 disposed at the bottom of the housing 1, a motor 24 mounted on the motor bracket 23, a coupling 25 disposed on the output shaft of the motor 24, and a connecting disk 22 coaxially connected to the free end of the coupling 25, wherein the connecting disk 22 is detachably connected to the driving disk. The self-rotation of the driving disk is realized, and since the connecting disk 22 is detachably connected to the driving disk, the removal of the driving disk is also convenient.

[0048] Regarding the detachable connection between the connecting disk 22 and the driving disk:

[0049] like Figure 1 and Figure 3 As shown:

[0050] The size of the connecting disk 22 is smaller than that of the driving disk. A groove is formed at the bottom of the driving disk. A plurality of mounting grooves 4 are formed at the bottom of the groove. The depth of the groove is equal to the depth of the connecting disk 22. A clamping block 26 whose number and position correspond to the mounting grooves 4 is fixedly connected to one end of the connecting disk 22 close to the groove. The clamping block 26 is clamped with the mounting groove 4. The depth of the groove is equal to the depth of the connecting disk 22. This is so that after the connecting disk 22 and the driving disk are installed, the connecting disk 22 and the driving disk become a whole, and the appearance is more beautiful.

[0051] At this time, when the motor 24 is driven, the driving disc completes its rotation under the action of the motor 24;

[0052] In order to fix the wine jar 27 using the driving disk, a fixed contact assembly is provided;

[0053] The fixed contact assembly is arranged on the end surface of the driving disk away from the groove, and the fixed contact assembly includes a cylinder group, an inner contact group of the wine jar 27 and an outer contact group of the wine jar 27. The outer contact group of the wine jar 27 is a flexible ring body 17 and is arranged on the inner disk wall 16 of the driving disk. The cylinder group includes a first cylinder 18 fixedly connected to the driving disk and a contact pad 19 arranged at the protruding end of the first cylinder 18. The outer contact group of the wine jar 27 includes a accommodating disk 20 fixedly connected to the driving disk and a plurality of second cylinders 28 evenly arranged inside the accommodating disk 20. The protruding end of the second cylinder 28 is provided with an extrusion rod 21. The extrusion rod 21 and the flexible ring body 17 are in the same plane and both act on the jar mouth of the wine jar 27, so as to fix the inverted wine jar 27, avoid the shaking of the wine jar 27 after inversion, and facilitate the rotation of the wine jar 27.

[0054] Specifically: using the first cylinder 18 and the contact pad 19, since the wine jar 27 is inverted, the contact pad 19 is pressed against the inner bottom of the wine jar 27, and then the first cylinder 18 is started, so that the mouth of the wine jar 27 does not contact the driving plate, and then the extension amount of the first cylinder 18 is manually determined, so that the position of the mouth of the wine jar 27 is in the same plane as the extrusion rod 21 and the flexible ring body 17;

[0055] At this time, start the second cylinder 28 so that the end of the extrusion rod 21 acts on the inside of the wine jar 27 to fix the wine jar 27. At this time, the flexible ring body 17 cannot contact the outer wall of the wine jar 27. The first cylinder 18 and the second cylinder 28 need to determine their positions, and then manually select a flexible ring body 17 of appropriate size. One side of the flexible ring body 17 is glue, which is fixed to the inner disk wall 16 of the driving disk by the glue, and the other side of the flexible ring body 17 is in contact with the outer wall of the wine jar 27.

[0056] Since the position limiting simulator and the polishing brush will slide in the circular groove 6, when the shape of the polishing brush is determined by the shape of the position limiting simulator, the position limiting simulator and the polishing brush need to be fixed, thereby setting a position limiting component:

[0057] Specifically: a limiting assembly for limiting the position of the simulator and the polishing brush is arranged in the circular groove body 5, and the limiting assembly is composed of a plurality of limiting blocks 10, and the limiting blocks 10 are placed in the circular groove 6 to limit the movement of the simulator and the polishing brush.

[0058] About the simulator: The simulator includes a first rod 12 coaxially connected to a sliding block 9, a plurality of threaded holes 11 uniformly opened on the first rod 12, and a contact rod 13 threadedly connected to the threaded holes 11, and one end of the contact rod 13 is threadedly connected to the outer surface of the wine jar 27 to ensure the outer surface of the wine jar 27 is in a straight line.

[0059] Specifically: the arrangement of the threaded holes 11 needs to be uniform and sufficient in number, and the contact rods 13 are rotated to form different trends to contact the outer surface of the wine jar 27, and the end surface of the contact rod 13 that contacts the outer surface of the wine jar 27 is made of soft material;

[0060] After one end of the contact rod 13 contacts the outer surface of the wine jar 27, the simulator is moved close to the polishing brush and the limiting assembly is used to limit the simulator and the polishing brush. Then the limiting block 10 is removed and the simulator is moved through the circular groove 6 to bring the simulator close to the polishing brush. At this time, the simulator is flush with the polishing brush. The polishing brush includes a second rod 7 coaxially connected to the sliding block 9, a through groove 8 extending through the second rod 7, a connecting frame 29 detachably connected to the through groove 8, and a plurality of polishing brush bodies 32 detachably connected to the connecting frame 29. The plurality of polishing brush bodies 32 form a polishing brush with the same shape as the simulator.

[0061] Specifically: the connection frame 29 is provided with fixing screws 30 for connecting the connection frame 29 and the through slot 8 to fix the connection frame 29;

[0062] About the polishing brush body 32: the polishing brush body 32 includes a frame 35, connecting screws 33, and a plurality of mounting points 36 arranged inside the frame 35 and a polishing brush filament group 31 connected to the mounting points 36. The position of the frame 35 is fixed by the connecting screws 33, and a polishing brush filament group 31 of a suitable length is selected and installed on the mounting points 36, so that the polishing brush body 32 constitutes a polishing brush with the same shape as the imitator, and the polishing brush filament group 31 is a mixed brush filament group 34 composed of a plurality of nylon filament groups and abrasive filament groups.

[0063] Specifically: the external contour trend of the simulator has been obtained, and then the connecting frame 29 is installed. After the connecting frame 29 is installed, the polishing brush body 32 is installed. The point that needs to be noted about the polishing brush body 32 is that the frame 35 is installed first. After the frame 35 is installed, the polishing brush wire group 31 needs to be installed in accordance with the external contour trend of the simulator, that is, polishing brush wire groups 31 of different lengths are selected for installation, so as to better simulate the external contour trend of the simulator;

[0064] After the polishing brush is installed, the wine jar 27 is manually rotated to determine whether the outer surface of the wine jar 27 can be acted upon by the polishing brush. If not, the simulator and the polishing brush are readjusted. If yes, the simulator is manually removed and a polishing agent or polishing paste is applied to the polishing brush filament group 31.

[0065] Then start the motor 24. Under the action of the motor 24, the outer surface of the wine jar 27 is constantly in contact with the polishing brush, so that the outer surface of the wine jar 27 is polished. After polishing for a period of time, stop the motor 24, take down the polished wine jar 27, and replace it with a new wine jar 27 that needs to be polished. If they are the same wine jar 27, the simulator and the polishing brush no longer need to be adjusted. If they are different wine jars 27, the simulator and the polishing brush need to be installed and readjusted according to the above steps.

[0066] The device solves the problem that the wine jar 27 cannot be fully polished because the conventional polishing equipment cannot polish the irregular areas of the wine jar 27.

[0067] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A polishing device for wine jars, characterized in that: It comprises a housing, a driving assembly arranged inside the housing, a driving disc arranged outside the housing and driven by the driving assembly, and a fixed contact assembly arranged on the driving disc and used for inverted fixing of the wine jar; A circular groove is provided on the outer periphery of the shell, and a plurality of sliding blocks are slidably connected in the circular groove. The sliding blocks are respectively equipped with an imitator for determining the direction of the outer surface of the wine jar and a polishing brush for achieving a shape identical to that of the imitator. When the polishing brush acts on the outer surface of the wine jar, the imitator is manually removed.

2. A wine jar polishing device according to claim 1, characterized in that: The shell is evenly arranged with mounting blocks around it, the mounting blocks are integrally formed with the bottom of the shell, the free ends of the mounting blocks are fixedly connected with support columns, the support columns are provided with mounting grooves, the circular groove body is fixedly connected to the mounting grooves, the circular groove body is provided with a circular groove, the inner wall of the circular groove is symmetrically provided with clamping grooves, and clamping blocks are provided at both ends of the sliding block, and the clamping blocks slide in the clamping grooves.

3. The polishing device for a wine jar according to claim 1, characterized in that: The driving assembly includes a motor bracket arranged at the bottom of the shell, a motor installed on the motor bracket, a coupling arranged on the motor output shaft and a connecting disk coaxially connected to the free end of the coupling, and the connecting disk is detachably connected to the driving disk.

4. The polishing device for a wine jar according to claim 3, characterized in that: The size of the connecting disk is smaller than that of the driving disk. A groove is formed at the bottom of the driving disk. A plurality of mounting grooves are formed at the bottom of the groove. The depth of the groove is equal to the depth of the connecting disk. One end of the connecting disk close to the groove is fixedly connected with blocks whose number and position correspond to the mounting grooves one by one. The blocks are engaged with the mounting grooves.

5. The polishing device for a wine jar according to claim 4, characterized in that: The fixed contact assembly is arranged on the end surface of the driving disk away from the groove, and the fixed contact assembly includes a cylinder group, an inner contact group of a wine jar and an outer contact group of a wine jar. The outer contact group of the wine jar is a flexible ring body and is arranged on the inner disk wall of the driving disk. The cylinder group includes a first cylinder fixedly connected to the driving disk and a contact pad arranged at the protruding end of the first cylinder. The outer contact group of the wine jar includes a accommodating disk fixedly connected to the driving disk and a plurality of second cylinders evenly arranged inside the accommodating disk. The protruding end of the second cylinder is provided with an extrusion rod. The extrusion rod and the flexible ring body are in the same plane and both act on the jar mouth of the wine jar.

6. The polishing device for a wine jar according to claim 5, characterized in that: The circular groove body is provided with a limiting assembly for limiting the position of the simulator and the polishing brush. The limiting assembly is composed of a plurality of limiting blocks. The limiting blocks are placed in the circular groove to limit the movement of the simulator and the polishing brush.

7. The polishing device for a wine jar according to claim 6, characterized in that: The simulator comprises a first rod coaxially connected to the sliding block, a plurality of threaded holes uniformly opened on the first rod and a contact rod threadedly connected to the threaded holes, wherein one end of the contact rod is in contact with the outer surface of the wine jar through the threaded connection.

8. The polishing device for a wine jar according to claim 7, characterized in that: After one end of the contact rod contacts the outer surface of the wine jar, the simulator is moved close to the polishing brush and the limiting assembly is used to limit the simulator and the polishing brush. The polishing brush includes a second rod coaxially connected to the sliding block, a through groove extending through the second rod, a connecting frame detachably connected to the through groove, and a plurality of polishing brush bodies detachably connected to the connecting frame. The plurality of polishing brush bodies form a polishing brush with the same shape as the simulator.

9. The polishing device for a wine jar according to claim 8, characterized in that: The polishing brush body includes a frame, connecting screws, and a plurality of mounting points arranged inside the frame and a polishing brush filament group connected to the mounting points. The position of the frame is fixed by the connecting screws, and a polishing brush filament group of appropriate length is selected and installed on the mounting points, so that the polishing brush body composed of the polishing brush has the same shape as the imitator.

10. The polishing device for a wine jar according to claim 1, characterized in that: The polishing bristle brush filament group is a mixed bristle brush filament group of a nylon filament group and an abrasive filament group.

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