Glass cup body polishing equipment

Abstract

The utility model discloses glass cup body polishing equipment which comprises an operation table and a supporting frame, a polishing assembly is arranged on the inner side of the supporting frame, a positioning assembly is arranged on the lower side in the supporting frame, and a dust collection assembly is arranged on the rear side of the upper end face of the operation table. A low-speed motor can drive clamping heads on the left side and the right side to synchronously move towards the inner side through a double-threaded rod, a movable plate and a linkage rod so as to clamp and fix a glass cup to be polished, and in the process, a second baffle ring installed on the annular side face of a limiting rod can stop and limit the inwards-moving movable plate; by starting a dust collection fan, most of glass dust in the front can be sucked by the dust collection fan through a through cavity and blown into a dust removal filter bag through a connecting pipe to be filtered, so that the glass to be polished can be cleaned; and therefore, the situation that glass dust generated in the grinding and polishing process cannot be treated in time and hurt the breathing health of surrounding workers is avoided.

Description

Technical Field

[0001] This utility model relates to the field of glass polishing technology, specifically to a glass polishing device. Background Technology

[0002] A glass cup refers to a cup made of glass. During the processing of the glass cup after it has been manufactured, polishing equipment is needed to grind and polish the rim of the glass cup to make the rim smooth and glossy. This prevents the user's mouth from being scratched when it comes into contact with the rim, thus ensuring the safety of the glass cup.

[0003] In the prior art, a glass cup rim clamping and polishing machine with publication number "CN222371296U" first places the glass cup on a lower arc plate, then moves a moving block to the left. The movement of the moving block causes the lower arc plate to move via a movable plate, which in turn moves the glass cup. When the rim of the glass cup contacts the plate, the moving block continues to move, at which point the glass cup moves to the right. The movement of the glass cup to the right causes the movable block to move downward via a moving rod, a horizontal block, and a rope. The movement of the movable block causes the upper arc plate to move, thereby clamping the glass cup and limiting its position from both left and right directions, while simultaneously clamping and fixing the glass cup.

[0004] However, the above technical solutions and existing technologies have the following drawbacks:

[0005] Although this polishing machine can clamp and fix glass cups, in actual use, the clamping structure only moves when the rim of the glass cup contacts the disc, causing the moving block to continue moving and thus moving the upper arc plate to clamp and limit the glass cup. When the glass cup is not in contact with the disc, the upper arc plate does not perform a clamping action. Therefore, during the distance the glass cup moves but is not in contact with the disc, there is a possibility that the glass cup may fall downwards, which does not conform to the actual application scenario. Furthermore, the moving structure in this polishing machine does not have a corresponding limiting structure when moving the glass cup inward, which can easily lead to excessive movement of the glass cup during inward movement, making it easy for the glass cup to be crushed or broken by the disc, causing unnecessary losses to the production enterprise. Secondly, the polishing equipment does not have a corresponding dust suction structure to suck in and filter the glass dust generated during the polishing process. As a result, the glass dust generated during the polishing process is very easy for the surrounding workers to inhale, and this inhaled glass dust can harm the respiratory health of the workers. Utility Model Content

[0006] The purpose of this invention is to provide a glass polishing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A glass polishing device includes an operating table and a support frame. The support frame is fixedly connected to the upper surface of the operating table. A glass to be polished is placed in the middle of the upper surface of the operating table. A polishing component is provided inside the support frame, which is used to polish the upper rim of the glass to be polished. A positioning component is provided inside the lower side of the support frame, which is used to clamp and position the glass to be polished. A dust collection component is provided at the rear side of the upper surface of the operating table, which is used to absorb and filter most of the glass dust generated during the polishing process.

[0009] Preferably, the polishing assembly includes a polishing disc, a drive motor, a connecting plate, an electric push rod, and a transmission shaft. An electric push rod is installed on the upper side of the inner wall of the support frame, a connecting plate is installed at the lower end of the electric push rod, a drive motor is installed at the middle position of the lower end face of the connecting plate, a transmission shaft is installed at the lower end of the drive motor, and a polishing disc is installed at the lower end of the transmission shaft.

[0010] Preferably, a follower rod is provided on the left side of the upper end face of the connecting plate, a first retaining ring is fitted on the upper side of the annular side of the follower rod, and a first locking screw is installed on the left side of the annular side of the first retaining ring.

[0011] Preferably, the positioning component includes a limiting base, a linkage rod, a moving plate, a low-speed motor, a clamping head, a double-threaded rod, and a limiting groove. The limiting base is installed in the middle of the upper surface of the operating table, and a low-speed motor is installed on the left end of the operating table. The transmission end of the low-speed motor is connected to a double-threaded rod. Moving plates are threaded to both sides of the annular side of the double-threaded rod. A linkage rod is provided on the upper side of the inner wall of the moving plate, and a clamping head is provided at the right end of the linkage rod. Limiting grooves are symmetrically opened on the left and right sides of the upper surface of the operating table, and the limiting grooves match the moving plates.

[0012] Preferably, the movable plate has a through hole, a limit rod is inserted through the through hole, a second retaining ring is installed on the annular side of the limit rod, a second locking screw is installed on the front side of the annular side of the second retaining ring, and a reinforcing plate is fixedly connected to the right side of the annular side of the limit rod.

[0013] Preferably, the dust collection assembly includes a through cavity, a support plate, a dust collection fan, a dust filter bag, and a connecting pipe. The support plate is fixedly connected to the rear side of the upper surface of the operating table. The through cavity is opened inside the support plate. The dust collection fan is installed on the rear side of the support plate. The connecting pipe is installed at the rear end of the dust collection fan. The dust filter bag is fitted on the annular side of the connecting pipe.

[0014] Preferably, a soft rubber sheet is adhered to the inner wall of the clamping head, and a rubber inner liner ring is fixedly connected to the inner annular side of the limiting base, wherein the inner diameter of the rubber inner liner ring is the same as the outer diameter of the glass cup to be polished.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By controlling the low-speed motor to rotate forward, the low-speed motor can drive the clamping heads on both sides to move inward synchronously through the double threaded rod, the moving plate and the linkage rod to clamp and fix the glass cup to be polished. At the same time, the limiting base will also limit the bottom of the glass cup to be polished to prevent the glass cup to be polished from rotating or shaking during the subsequent polishing process. In addition, during this process, the second retaining ring installed on the annular side of the limiting rod can block and limit the inward movement of the moving plate to prevent the clamping head from moving inward too much and causing the glass cup to be polished to be broken.

[0017] 2. By starting the vacuum cleaner, most of the glass dust in front can be sucked in through the through-cavity and blown into the dust filter bag through the connecting pipe for filtration, thereby avoiding the glass dust generated during the grinding and polishing process from not being treated in time and harming the respiratory health of the surrounding staff.

[0018] 3. By starting the drive motor and controlling the extension of the electric push rod, the drive motor can drive the polishing disc to rotate through the transmission shaft. The electric push rod will drive the polishing disc to move downwards through the connecting plate, drive motor and transmission shaft to polish the upper part of the glass cup to be polished. During this process, the follower rod and the first retaining ring will limit the descent range of the connecting plate to prevent the polishing disc from descending too far and causing the glass cup to be polished to be crushed or cracked, thereby ensuring the yield of finished glass cups. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a structural diagram of the polishing component, dust collection component, and positioning component in this utility model;

[0021] Figure 3 This is a rear view of the polishing component, dust collection component, and positioning component in this utility model;

[0022] Figure 4 This is a structural diagram of the polishing component in this utility model;

[0023] Figure 5 This is a structural diagram of the positioning component in this utility model;

[0024] Figure 6 for Figure 2 A magnified view of A in the middle.

[0025] In the diagram: 1. Operating table; 2. Support frame; 3. Polishing assembly; 31. Polishing disc; 32. Drive motor; 33. Connecting plate; 34. Electric push rod; 35. Follower rod; 36. First retaining ring; 37. First locking screw; 38. Drive shaft; 4. Dust collection assembly; 41. Through cavity; 42. Support plate; 43. Dust collection fan; 44. Dust filter bag; 45. Connecting pipe; 5. Positioning assembly; 51. Limiting base; 52. Rubber inner lining ring; 53. Linkage rod; 54. Moving plate; 541. Through hole; 55. Low-speed motor; 56. Limiting rod; 561. Reinforcing plate; 57. Clamping head; 571. Soft rubber sheet; 58. Double threaded rod; 59. Limiting groove; 511. Second retaining ring; 512. Second locking screw; 6. Glass cup to be polished. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 This utility model provides a technical solution:

[0028] Example 1:

[0029] A glass polishing device includes an operating table 1 and a support frame 2. The support frame 2 is fixedly connected to the upper surface of the operating table 1, and the support frame 2 can support the polishing component 3 and the positioning component 5 respectively. The glass cup 6 to be polished is placed in the middle of the upper surface of the operating table 1. A control panel is installed on the right side of the upper surface of the operating table 1. The input end of the control panel is connected to an external fixed power supply through wires. The output end of the control panel is connected to an electric push rod 34, a drive motor 32, a vacuum fan 43, and a low-speed motor 55 through wires respectively. The control panel allows the operator to control the electric push rod 34, the drive motor 32, the vacuum fan 43, and the low-speed motor 55 according to their needs. Since the internal detailed structure and working principle of the control panel are relatively mature technologies in the prior art, they will not be described in detail here.

[0030] A polishing component 3 is provided inside the support frame 2. The polishing component 3 is used to polish the upper rim of the glass cup 6 to be polished, thereby removing burrs from the surface of the rim and making the rim smoother. A positioning component 5 is provided inside the lower side of the support frame 2. The positioning component 5 is used to clamp and position the glass cup 6 to be polished, preventing the glass cup 6 to be polished from shaking or shifting during the polishing process. A dust collection component 4 is provided on the rear side of the upper surface of the operating table 1. The dust collection component 4 is used to absorb and filter most of the glass dust generated during the polishing process, preventing most of the glass dust generated during the polishing process from not being treated in time and harming the respiratory health of the surrounding staff.

[0031] The polishing assembly 3 includes a polishing disc 31, a drive motor 32, a connecting plate 33, an electric push rod 34, and a transmission shaft 38. An electric push rod 34 is installed on the upper inner wall of the support frame 2. During operation, the electric push rod 34 can drive the connecting plate 33 to rise and fall. The connecting plate 33 is installed at the lower end of the electric push rod 34, supporting the drive motor 32. The drive motor 32 is installed in the middle of the lower end face of the connecting plate 33. The transmission shaft 38 is installed at the lower end of the drive motor 32, and the polishing disc 31 is installed at the lower end of the transmission shaft 38. The polishing disc 31 is made of polishing cloth wheel, and its diameter is larger than the outer diameter of the upper opening of the glass cup 6 to be polished. When the drive motor 32 rotates, it drives the polishing disc 31 to rotate via the transmission shaft 38, so that the rotating polishing disc 31 polishes the upper opening of the glass cup 6 below. The polishing disc 31 is a detachable structure, allowing for easy replacement by staff later.

[0032] A follower rod 35 is provided on the left side of the upper end face of the connecting plate 33. The follower rod 35 is connected to the connecting plate 33 by welding. The follower rod 35 can limit the connection plate 33 to prevent it from shaking or shifting during lifting and lowering. A first retaining ring 36 is fitted on the upper side of the annular side of the follower rod 35. The first retaining ring 36 can limit the downward movement range of the follower rod 35, thereby preventing the polishing disc 31 from moving too far downward and causing the glass cup 6 to be polished to be crushed or cracked. A first locking screw 37 is installed on the left side of the annular side of the first retaining ring 36. A first internal threaded through hole is opened on the left side of the annular side of the first retaining ring 36, and the first internal threaded through hole engages with the first locking screw 37. The engaging first internal threaded through hole and the first locking screw 37 can fix the first retaining ring 36 in the required position on the annular side of the follower rod 35. A height scale line is provided on the annular side of the follower rod 35. The height scale line makes it convenient for the staff to observe the height of the first retaining ring 36, so as to accurately adjust the height of the first retaining ring 36 later.

[0033] Example 2:

[0034] Based on Embodiment 1, in this embodiment, by controlling the low-speed motor 55 to rotate forward, the low-speed motor 55 can drive the clamping heads 57 on both sides to move inward synchronously through the double threaded rod 58, the moving plate 54, and the linkage rod 53 to clamp and fix the glass cup 6 to be polished. At the same time, the limiting base 51 will also limit the bottom of the glass cup 6 to be polished, so as to prevent the glass cup 6 to be polished from rotating or wobbling during the subsequent polishing process. During this process, the second retaining ring 511 installed on the annular side of the limiting rod 56 can block and limit the inward movement of the moving plate 54, so as to prevent the clamping head 57 from moving inward too much and causing the glass cup 6 to be polished to be crushed.

[0035] Positioning component 5 includes a limiting base 51, a linkage rod 53, a moving plate 54, a low-speed motor 55, a clamping head 57, a double-threaded rod 58, and a limiting groove 59. The limiting base 51 is installed in the middle of the upper surface of the operating table 1. The limiting base 51 can limit the bottom of the glass cup 6 to be polished. The low-speed motor 55 is installed on the left side of the operating table 1. When working, the low-speed motor 55 can drive the double-threaded rod 58 to rotate at a low speed. The transmission end of the low-speed motor 55 is connected to the double-threaded rod 58. The external threads on the left side of the annular side of the double-threaded rod 58 rotate in opposite directions to the external threads on the right side of the annular side. The moving plate 54 is threaded to both the left and right sides of the annular side of the double-threaded rod 58. The lower side of the moving plate 54 has an opening. The moving plate 54 has an internal threaded cavity that meshes with the double threaded rod 58. A linkage rod 53 is provided on the upper side of the inner wall of the moving plate 54. The linkage rod 53 is connected to the moving plate 54 and the clamping head 57 by welding. The clamping head 57 is provided on the right end of the linkage rod 53. The double threaded rod 58, whose external threads on the left and right sides of the annular side rotate in opposite directions, can drive the moving plates 54 on both sides to move synchronously and in opposite directions through the internal threaded cavity when rotating. This allows the moving plates 54 to drive the clamping heads 57 on both sides to move synchronously and in opposite directions through the linkage rod 53 to clamp and position the glass cup 6 to be polished, thus preventing the glass cup 6 to be polished from rotating or wobbling during the polishing process.

[0036] The upper surface of the operating table 1 has symmetrically arranged limiting grooves 59 on the left and right sides, and the limiting grooves 59 match the moving plate 54. The limiting grooves 59 can limit the moving plate 54 to prevent it from shaking or shifting during use. The moving plate 54 has a through hole 541 inside, which matches the limiting rod 56. The through hole 541 facilitates the use of the limiting rod 56 inside the moving plate 54. The limiting rod 56 is inserted inside the through hole 541 and is connected to the support frame 2 by welding. The limiting rod 56 can support the second retaining ring 511. The second retaining ring 511 is installed on the annular side of the limiting rod 56. The second retaining ring 511 can limit the range of the moving plate 54 moving inward, preventing the moving plate 54 from moving the clamping head 57 too far inward through the linkage rod 53, which would cause the glass cup 6 to be polished to be crushed.

[0037] A second locking screw 512 is installed on the front side of the annular side of the second retaining ring 511. A second internal threaded through hole is opened on the front side of the annular side of the second retaining ring 511, and the second internal threaded through hole engages with the second locking screw 512. The engaging second internal threaded through hole and the second locking screw 512 can fix the second retaining ring 511 at the required position on the annular side of the limiting rod 56. A reinforcing plate 561 is fixedly connected to the right side of the annular side of the limiting rod 56. The reinforcing plate 561 makes the connection between the limiting rod 56 and the support frame 2 stable and replaceable. A soft rubber sheet 571 is adhered to the inner wall of the head 57. The soft rubber sheet 571 prevents hard contact between the clamping head 57 and the glass cup 6 to be polished. A rubber inner lining ring 52 is fixedly connected to the inner annular side of the limiting base 51. The inner diameter of the rubber inner lining ring 52 is the same as the outer diameter of the glass cup 6 to be polished. The rubber inner lining ring 52 prevents hard contact between the limiting base 51 and the glass cup 6 to be polished. A digital scale line is provided on the front side of the annular side of the limiting rod 56. The digital scale line makes it convenient for the staff to accurately adjust the position of the second stop ring 511.

[0038] Example 3:

[0039] Based on Embodiment 1, in this embodiment, by activating the dust extraction fan 43, most of the glass dust in front can be sucked in through the through cavity 41 and blown to the dust filter bag 44 through the connecting pipe 45 for filtration, thereby preventing the glass dust generated during the grinding and polishing process from being not treated in time and harming the respiratory health of the surrounding staff.

[0040] The dust collection assembly 4 includes a through cavity 41, a support plate 42, a dust collection fan 43, a dust filter bag 44, and a connecting pipe 45. The support plate 42 is fixedly connected to the rear side of the upper surface of the operating table 1, supporting the dust collection fan 43. The through cavity 41 is provided inside the support plate 42, facilitating the suction of most of the glass dust from the front by the working dust collection fan 43. The dust collection fan 43, an axial flow fan, is installed at the rear end of the support plate 42. Equipped with a connecting pipe 45, and a dust collection filter bag 44 fitted on the annular side of the connecting pipe 45, the dust collection fan 43, which is an axial flow fan, can generate suction force to draw in the glass dust in front and blow it through the connecting pipe 45 to the dust collection filter bag 44 for filtration. This prevents the glass dust generated during the grinding process from being not treated in time and harming the respiratory health of the surrounding staff. The dust collection filter bag 44 is a detachable structure, which makes it convenient for staff to replace and clean it later.

[0041] Working principle: During the polishing process of the glass cup, the operator first loosens the first locking screw 37 with an external wrench. At this time, the height of the first retaining ring 36 can be adjusted to the required position. After adjustment, the first locking screw 37 is tightened to fix the first retaining ring 36. Then, the second locking screw 512 is loosened with an external wrench. At this time, the second retaining ring 511 can be adjusted laterally. After adjustment, the second locking screw 512 is tightened to fix the second retaining ring 511. Then, the glass cup 6 to be polished can be placed vertically in the limiting base 51. During this process, the mouth of the glass cup 6 to be polished needs to face upward. After placement, the low-speed motor 55 is controlled to rotate forward, so that the low-speed motor 55 drives the left and right sides through the double threaded rod 58. The movable plate 54 on the side moves inward synchronously, and the movable plate 54 will drive the clamping heads 57 on both sides to move inward synchronously through the linkage rod 53 to clamp and fix the glass cup 6 to be polished. At the same time, the limiting base 51 will also limit the bottom of the glass cup 6 to be polished to prevent the glass cup 6 to be polished from rotating or wobbling during the subsequent polishing process, thereby ensuring the stability of the glass cup 6 to be polished during the polishing process. During this process, the second retaining ring 511 installed on the annular side of the limiting rod 56 can block and limit the inward movement of the movable plate 54, so that the soft rubber sheet 571 cannot continue to move inward after it is tightly attached to the glass cup 6 to be polished, thus preventing the movable plate 54 from driving the clamping heads 57 to move inward excessively through the linkage rod 53, which would cause the glass cup 6 to be polished to be crushed.

[0042] Once the glass cup 6 to be polished is positioned, the drive motor 32 is started first, causing the drive motor 32 to drive the polishing disc 31 to rotate via the transmission shaft 38. Then, the electric push rod 34 is controlled to extend, causing the electric push rod 34 to drive the polishing disc 31 to move downward via the connecting plate 33, the drive motor 32, and the transmission shaft 38. This allows the rotating polishing disc 31 to descend and contact the upper rim of the glass cup 6 to be polished for polishing. During this process, the follower rod 35 will drive the first retaining ring 36 to descend synchronously with the connecting plate 33, so that the first retaining ring 36 limits the descent range of the connecting plate 33. When the lower end face of the first retaining ring 36 is in contact with the upper end of the support frame 2, the lower end face of the polishing disc 31 is in contact with the upper rim of the glass cup 6 to be polished, thus preventing the polishing disc 31 from descending excessively and causing the glass cup 6 to be polished to be crushed or cracked.

[0043] During the polishing process of the glass cup 6 to be polished, the staff only needs to start the vacuum fan 43, which will suck in most of the glass dust in front through the through cavity 41 and blow it to the dust filter bag 44 through the connecting pipe 45 for filtration. This will prevent the glass dust generated during the polishing process from being damaged by the lack of timely treatment and harming the respiratory health of the surrounding staff. After the upper part of the glass cup 6 to be polished is polished, the staff first controls the electric push rod 34 to retract, so that the polishing disc 31 moves upward. Then, the staff turns off the drive motor 32 and then controls the low-speed motor 55 to reverse. This will cause the double threaded rod 58 to move outward synchronously through the moving plate 54 and the linkage rod 53, releasing the fixation of the glass cup 6 to be polished, so that the staff can take away the polished glass cup.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass polishing device, comprising an operating table (1) and a support frame (2), characterized in that: A support frame (2) is fixedly connected to the upper end of the operating table (1). A glass cup (6) to be polished is placed in the middle of the upper end of the operating table (1). A polishing component (3) is provided inside the support frame (2). The polishing component (3) is used to polish the upper rim of the glass cup (6). A positioning component (5) is provided inside the lower side of the support frame (2). The positioning component (5) is used to clamp and position the glass cup (6) to be polished. A dust collection component (4) is provided on the rear side of the upper end of the operating table (1). The dust collection component (4) is used to absorb and filter most of the glass dust generated during the polishing process.

2. The glass polishing equipment according to claim 1, characterized in that: The polishing assembly (3) includes a polishing disc (31), a drive motor (32), a connecting plate (33), an electric push rod (34), and a transmission shaft (38). An electric push rod (34) is installed on the upper side of the inner wall of the support frame (2). A connecting plate (33) is installed at the lower end of the electric push rod (34). A drive motor (32) is installed at the middle position of the lower end face of the connecting plate (33). A transmission shaft (38) is installed at the lower end of the drive motor (32). A polishing disc (31) is installed at the lower end of the transmission shaft (38).

3. The glass polishing equipment according to claim 2, characterized in that: A follower rod (35) is provided on the left side of the upper end face of the connecting plate (33). A first retaining ring (36) is fitted on the upper side of the annular side of the follower rod (35). A first locking screw (37) is installed on the left side of the annular side of the first retaining ring (36).

4. The glass polishing equipment according to claim 1, characterized in that: The positioning component (5) includes a limiting base (51), a linkage rod (53), a moving plate (54), a low-speed motor (55), a clamping head (57), a double-threaded rod (58), and a limiting groove (59). The limiting base (51) is installed in the middle of the upper surface of the operating table (1). The low-speed motor (55) is installed on the left side of the operating table (1). The transmission end of the low-speed motor (55) is connected to the double-threaded rod (58). The moving plate (54) is threadedly connected to the left and right sides of the annular side of the double-threaded rod (58). The linkage rod (53) is provided on the upper side of the inner wall of the moving plate (54). The clamping head (57) is provided on the right end of the linkage rod (53). The limiting groove (59) is symmetrically opened on the left and right sides of the upper surface of the operating table (1), and the limiting groove (59) matches the moving plate (54).

5. A glass polishing device according to claim 4, characterized in that: The movable plate (54) has a through hole (541) inside, and a limit rod (56) is inserted inside the through hole (541). A second retaining ring (511) is installed on the annular side of the limit rod (56). A second locking screw (512) is installed on the front side of the annular side of the second retaining ring (511). A reinforcing plate (561) is fixedly connected to the right side of the annular side of the limit rod (56).

6. The glass polishing equipment according to claim 1, characterized in that: The dust collection assembly (4) includes a through cavity (41), a support plate (42), a dust collection fan (43), a dust filter bag (44), and a connecting pipe (45). The support plate (42) is fixedly connected to the rear side of the upper end face of the operating table (1). The through cavity (41) is opened inside the support plate (42). The dust collection fan (43) is installed on the rear end face of the support plate (42). The connecting pipe (45) is installed on the rear end of the dust collection fan (43). The dust filter bag (44) is fitted on the annular side of the connecting pipe (45).

7. A glass polishing device according to claim 4, characterized in that: The inner wall of the clamping head (57) is bonded with a soft rubber sheet (571), and the inner annular side of the limiting base (51) is fixedly connected with a rubber inner lining ring (52). The inner diameter of the rubber inner lining ring (52) is the same as the outer diameter of the glass cup (6) to be polished.

Images