An automated porcelain rim polishing mechanism
The design of an automated grinding mechanism for porcelain rims solves the problems of inconvenience and unevenness in the grinding process of ceramic green bodies. It achieves stable and efficient dust cleaning and convenient replacement of grinding sleeves, reducing the difficulty of operation and the cost of consumables.
Patent Information
- Application Number
- CN202522525059.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-27
AI Technical Summary
In the existing technology, the rim polishing process of ceramic green bodies has problems such as inconvenience in holding the hand and "biting" caused by uneven polishing, and the dust cleaning efficiency is low.
An automated grinding mechanism for porcelain rims was designed, employing a detachable chuck component and an annular pipe structure. The chuck component includes a grinding sleeve and a limiting frame. The grinding sleeve deforms to fit the rim when subjected to force. The annular pipe is embedded in the machine body groove and provides uniform airflow to clean dust.
It improves the stability and comfort of grinding, reduces the risk of "grinding", enhances dust cleaning efficiency, and the grinding sleeve is replaceable, reducing consumable costs.
Smart Images

Figure CN224939712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceramic processing technology, and in particular to an automated polishing mechanism for the rim of porcelain. Background Technology
[0002] When ceramics are in the unglazed state, the rim usually needs to be polished. This step, known in ceramics as "rim trimming" or "beveling," is used to improve the final quality of the piece. Newly formed ceramic rims often have sharp, rough edges or tiny particles after drying. If left untreated, these areas will harden and become even sharper after firing, causing discomfort when touched directly with the mouth and even posing a risk of cutting the lips.
[0003] The publication CN222726305U, entitled "A Porcelain Polishing Tool," mentions the use of a cleaning mechanism. Through the cooperation of the air duct, air supply hose, and air pump, dust accumulated at the polishing position can be removed during the polishing process without stopping the machine for cleaning, thus improving the efficiency of porcelain polishing.
[0004] The aforementioned cleaning mechanism is used to remove dust from the grinding area. Since it is manually operated via the electric grinder and externally connected, it can be inconvenient for the operator while holding the grinder. Furthermore, when the ceramic is in its green state, the rigid contact between the grinder and the green ceramic can easily lead to uneven grinding and cause "biting" on the rim. Utility Model Content
[0005] In response to the problems mentioned above, this utility model provides an automated polishing mechanism for the rim of porcelain.
[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automated polishing mechanism for porcelain rims, including a machine body, an installation groove extending along the machine body is provided on the outer side of the machine body, and a ventilation component is installed at the working end of the machine body, the ventilation component including a connecting pipe that is locked in the installation groove of the machine body. A spindle is mounted on the working end of the machine body, and a detachable chuck assembly is mounted on the outer end of the spindle. The chuck assembly includes: The chuck sleeve is detachably fixed to the outside of the spindle; The grinding sleeve is fitted on the outside of the chuck sleeve, and a cavity is formed between the grinding sleeve and the chuck sleeve. The limiting bracket, which is detachably fixed to the chuck sleeve, is used to clamp the grinding sleeve between the limiting bracket and the chuck sleeve.
[0007] A further preferred embodiment of this utility model is: the ventilation component also includes an annular tube fixed to the working end of the machine body, the axis of the annular tube coincides with the axis of the main shaft, and a plurality of uniformly circumferentially distributed ventilation ports are integrally formed on the outward side of the annular tube, the extension line of the ventilation ports passes through the outside of the clamp component, the connecting pipe is connected to the annular tube and communicates with each other, and the outer end of the connecting pipe is used to connect to the air intake device or the air outlet device.
[0008] A further preferred embodiment of this utility model is: the outer wall of the spindle has an outwardly extending through groove, and the inner wall of the chuck sleeve has a corresponding retaining shaft integrally formed, so that when the chuck sleeve is sleeved with the spindle, the retaining shaft cooperates with the corresponding groove.
[0009] A further preferred embodiment of this utility model is: the inside of the chuck sleeve also has a partition for sealing the chuck sleeve, the partition is used to abut against the end of the spindle, and a fastening bolt for fixing the partition and the spindle passes through the outer side of the partition.
[0010] A further preferred embodiment of this utility model is as follows: the two ends of the chuck sleeve are integrally provided with outwardly extending baffle plate one and baffle plate two, and the two ends of the grinding sleeve are integrally provided with a fixing layer. The fixing layer at both ends is respectively attached to baffle plate one and baffle plate two, and the limiting frame is used to press the fixing layer at both ends against baffle plate one and baffle plate two respectively.
[0011] A further preferred embodiment of this utility model is that the outer diameters of both the first and second baffles are larger than the outer diameter of the chuck sleeve.
[0012] A further preferred embodiment of this utility model is: the inner diameter of the grinding sleeve is the same as that of the first baffle, the fixing layers at both ends of the grinding sleeve are split and can be bent inward, and the fixing layers at both ends are respectively used to abut against the outward side of the first baffle and the second baffle.
[0013] A further preferred embodiment of this utility model is: a sliding opening for a through baffle is provided on the outer side of the chuck sleeve; The limiting frame includes a first layer, a second layer, a connecting shaft for connecting the first layer and the second layer, and an inner ring layer fixed to the inward side of the connecting shaft; The connecting shaft is slidably set inside the sliding opening. Layer 1 is located outside of baffle 1, and layer 2 is sleeved on the outside of the chuck sleeve. Layer 1 and baffle 1 are used to squeeze the fixed layer at one end, and layer 2 and baffle 2 are used to squeeze the fixed layer at the other end. The inner ring layer is sleeved inside the chuck sleeve and is fixed to the partition layer by bolts.
[0014] A further preferred embodiment of this utility model is: the outer diameter of layer one is the same as the outer diameter of baffle one, and the outer diameter of layer two is the same as the outer diameter of baffle two.
[0015] A further preferred embodiment of this utility model is that the grinding sleeve and the fixing layers at both ends are made of sandpaper material.
[0016] Compared with the prior art, the advantages of this utility model are: 1. The grinding sleeve deforms under pressure from the rim of the porcelain, thus better conforming to the rim contour and reducing the risk of "biting" or chipping when grinding fragile workpieces such as green porcelain blanks.
[0017] 2. The connecting pipes for dust handling are embedded in the mounting groove of the machine body, keeping the outer wall of the machine body flat and avoiding interference, pressure or entanglement of the external pipes on the operator's hands. This improves the stability and comfort of the handheld device and facilitates fine operation. The annular pipe and multiple evenly distributed air vents around the main shaft can form a uniform airflow around the grinding point, which can more effectively blow away or suck away the dust generated during grinding from the source.
[0018] 3. The grinding sleeve is held by the limiting frame, the first baffle and the second baffle. The grinding sleeve is fixed by the limiting frame fastened with bolts. Disassembly and replacement are very convenient. When the grinding sleeve is worn or different grit sandpaper is needed to adapt to different grinding stages, only the inexpensive sandpaper needs to be replaced, which reduces the cost of consumables and maintenance time. Attached Figure Description
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another orientation; Figure 3 This is a schematic diagram of the ventilation component and clamp component of this utility model; Figure 4 This is a partially exploded structural diagram of the chuck component of this utility model; Figure 5 This is a schematic diagram of the limiting frame structure of this utility model; Figure 6 This is a partial cross-sectional view of the chuck component of this utility model; Figure 7 This utility model Figure 6 A magnified schematic diagram of the structure of part A in the diagram; Figure 8 This is a schematic diagram of the installation position of the grinding sleeve of this utility model.
[0021] In the diagram: 1. Machine body; 11. Mounting slot; 2. Ventilation component; 21. Annular pipe; 22. Ventilation port; 23. Connecting pipe; 3. Main shaft; 31. Slot; 4. Chuck component; 41. Chuck sleeve; 42. Shaft clamp; 43. Partition; 44. Fastening bolt; 45. Baffle plate one; 46. Baffle plate two; 47. Sliding port; 48. Grinding sleeve; 49. Fixed layer; 40. Limiting frame; 401. Layer one; 402. Layer two; 403. Connecting shaft; 404. Inner ring layer. Detailed Implementation
[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
[0024] This embodiment mainly describes an automated polishing mechanism for the rim of porcelain. Please refer to [link / reference needed]. Figures 1-8 Specifically, the following is a description of the process: The electric grinder is operated manually, and the cleaning mechanism is externally connected. This causes inconvenience for the operator while holding the grinder. Furthermore, when the ceramic is in its green state, the rigid electric grinder's contact with the green ceramic can easily lead to uneven grinding, resulting in "biting" of the rim. Therefore, an automated rim grinding mechanism for porcelain is proposed, comprising a machine body 1. An installation groove 11 extending along the outer side of the machine body 1 is provided. A ventilation component 2 is installed at the working end of the machine body 1, and the ventilation component 2 includes a connecting pipe 23 that is fitted into the installation groove 11 of the machine body 1. The machine body 1 has a spindle 3 installed at the working end, and a detachable chuck component 4 is installed at the outer end of the spindle 3. The chuck component 4 includes: a chuck sleeve 41, a grinding sleeve 48, and a limit frame 40. The chuck sleeve 41 is detachably fixed to the outside of the spindle 3; The grinding sleeve 48 is fitted on the outside of the chuck sleeve 41, and a cavity is formed between the grinding sleeve 48 and the chuck sleeve 41. The limiting frame 40 and the chuck sleeve 41 are detachably fixed to hold the grinding sleeve 48 between the limiting frame 40 and the chuck sleeve 41.
[0025] Specifically, the connecting pipe 23 for connecting the ventilation component 2 to the outside is embedded in the mounting groove 11, so that the shape of the body 1 remains relatively unchanged and the connecting pipe 23 does not protrude. When the operator holds the body 1, the connecting pipe 23 will not be compressed, and the connecting pipe 23 will not affect the operator's operation.
[0026] The output end of the machine body 1 has a spindle 3, which is controlled by an internal motor and is existing technology. The chuck component 4 is detachably fixed to the spindle 3 and is used to grind the rim of porcelain, removing sharp, rough edges or small particles. The chuck sleeve 41 and the limiting frame 40 are sleeved together to hold the grinding sleeve 48. There is a cavity between the grinding sleeve 48 and the chuck sleeve 41. When grinding with the grinding sleeve 48, the rim of the porcelain exerts pressure on the grinding sleeve 48, causing the grinding sleeve 48 to deform and fit relatively against the rim of the porcelain, avoiding the problem of "biting" the rim.
[0027] like Figures 2-3 As shown, the ventilation component 2 also includes an annular tube 21 fixed to the working end of the machine body 1. The axis of the annular tube 21 coincides with the axis of the main shaft 3. The annular tube 21 has a plurality of uniformly distributed ventilation ports 22 on the outward side. The extension line of the ventilation ports 22 passes through the outside of the clamp component 4. The connecting pipe 23 is connected to the annular tube 21 and communicates with each other. The outer end of the connecting pipe 23 is used to connect to the air intake device or the air outlet device.
[0028] Specifically, the function of the annular pipe 21 and the air exchange port 22 on its outer side is to control the movement of gas for inhalation or blowing. It is arranged in a ring and multiple air exchange ports 22 are distributed to blow air around the chuck component 4 as much as possible, so that the dust generated at the chuck component 4 can be sucked in or blown away as much as possible.
[0029] like Figure 4 As shown, the outer wall of the spindle 3 has an outwardly extending through groove 31, and the inner wall of the chuck sleeve 41 has a corresponding retaining shaft 42 integrally formed. When the chuck sleeve 41 is sleeved with the spindle 3, the retaining shaft 42 cooperates with the corresponding groove 31. When the chuck sleeve 41 is sleeved and fixed with the spindle 3, the retaining shaft 42 needs to cooperate with the corresponding groove 31. When the spindle 3 rotates, the chuck sleeve 41 ensures that it rotates with it, and can rotate synchronously even if there is resistance in the chuck sleeve 41.
[0030] like Figure 6 As shown, the inside of the chuck sleeve 41 also has a partition 43 for enclosing the chuck sleeve 41. The partition 43 is used to abut against the end of the spindle 3. A fastening bolt 44 for fixing the partition 43 and the spindle 3 passes through the outer side of the partition 43.
[0031] Specifically, the partition 43 abuts against the end of the spindle 3, restricting the position of the chuck sleeve 41. After the fastening bolt 44 fixes the partition 43 and the spindle 3, it is difficult to make the chuck sleeve 41 move even when pushed inward or outward, thus keeping it fixed. At the same time, the fastening bolt 44 makes it easy to assemble or disassemble the chuck component 4 with the spindle 3, making it easy to operate.
[0032] like Figures 5-8As shown, the chuck sleeve 41 has two outwardly extending baffles 45 and 46 integrally formed at both ends, and the grinding sleeve 48 has a fixing layer 49 integrally formed at both ends. The fixing layer 49 at both ends is in contact with the baffle 45 and 46 respectively. The limiting frame 40 is used to press the fixing layer 49 at both ends against the baffle 45 and 46 respectively.
[0033] Specifically, the grinding sleeve 48 is a sleeve-shaped structure that presses against the rim of the porcelain during rotation and performs grinding. The fixing layers 49 at both ends of the grinding sleeve 48 are pressed and clamped by the limiting frame 40, the first baffle 45, and the second baffle 46 to fix the grinding sleeve 48. After the grinding sleeve 48 is fixed, its outer wall is still in a cylindrical state. When it is pressed by the rim of the porcelain, since there is no internal support, it will indent to a certain extent and fit against the rim of the porcelain, avoiding excessive grinding of the rim of the porcelain. It should be noted that after the grinding sleeve 48 is fixed, its outer wall is not in a taut state and will still indent to a certain extent under force. It should also be noted that the grinding sleeve 48 can increase the contact area with the rim of the porcelain, and can quickly process sharp, rough edges or small particles.
[0034] like Figure 5 As shown, the outer diameters of baffle 45 and baffle 46 are both larger than the outer diameter of chuck sleeve 41, so that chuck sleeve 41, baffle 45 and baffle 46 form a structure with both ends protruding and the middle recessed, so that after the grinding sleeve 48 is installed, there is a cavity between it and chuck sleeve 41.
[0035] like Figures 5-8 As shown, the inner diameter of the grinding sleeve 48 is the same as that of the first baffle 45. The fixing layers 49 at both ends of the grinding sleeve 48 are split and can be bent inward. The fixing layers 49 at both ends are respectively used to abut against the outward side of the first baffle 45 and the second baffle 46.
[0036] Specifically, the fixing layers 49 at both ends of the grinding sleeve 48 are split, meaning they are set up individually, allowing them to bend smoothly inwards when bent, making them easy to clamp.
[0037] like Figures 5-8 As shown, the outer side of the chuck sleeve 41 is provided with a sliding opening 47 that passes through the baffle plate 45; The limiting frame 40 includes a first layer 401, a second layer 402, a connecting shaft 403 for connecting the first layer 401 and the second layer 402, and an inner ring layer 404 fixed to the inward side of the connecting shaft 403. The connecting shaft 403 is slidably disposed in the sliding opening 47. Layer 1 401 is located outside the baffle 1 45. Layer 2 402 is sleeved on the outside of the chuck sleeve 41. Layer 1 401 and baffle 1 45 are used to squeeze the fixing layer 49 at one end. Layer 2 402 and baffle 2 46 are used to squeeze the fixing layer 49 at the other end. The inner ring layer 404 is sleeved inside the chuck sleeve 41 and is fixed to the partition layer 43 by bolts.
[0038] Specifically, the first layer 401 and the second layer 402 in the limiting frame 40 are used to exert a squeezing effect with the first baffle 45 and the second baffle 46 respectively, clamping and fixing the fixing layer 49, so that the grinding sleeve 48 rotates with the spindle 3.
[0039] The outer diameter of layer 401 is the same as that of baffle 45, and the outer diameter of layer 402 is the same as that of baffle 46, so that the edges of layer 401 and baffle 45 and layer 402 and baffle 46 coincide, and the area clamped by the fixed layer 49 is the same.
[0040] The grinding sleeve 48 and the fixing layers 49 at both ends are made of sandpaper. The grinding sleeve 48 can be replaced with sandpaper of different grits to suit different grinding conditions.
[0041] Working principle: Loosen the bolts on the inner ring layer 404 to separate it from the partition layer 43. Similarly, create gaps between layer one 401 and baffle one 45, and between layer two 402 and baffle two 46. After putting the grinding sleeve 48 on the outside of the chuck sleeve 41, bend the fixing layers 49 at both ends so that the fixing layers 49 at both ends are clamped between layer one 401 and baffle one 45, and between layer two 402 and baffle two 46, respectively. Then tighten the bolts on the inner ring layer 404 to clamp and fix the fixing layers 49 at both ends. There is a gap between the grinding sleeve 48 in the middle and the outer wall of the chuck sleeve 41. Therefore, when grinding the edge, the grinding sleeve 48 will be under force and will show a certain degree of indentation, which will fit against the edge of the porcelain and will not cause the problem of "biting" the edge.
[0042] The grinding sleeve 48 can be installed or removed and replaced by loosening and tightening the bolts of the inner ring layer 404. After long-term use, the grinding sleeve 48 will reduce the grinding effect. It is not necessary to replace the entire chuck assembly 4. Only the inexpensive sandpaper needs to be replaced, thus minimizing the use of finished products.
[0043] The fixing layers 49 at both ends of the grinding sleeve 48 are also made of sandpaper material. When the sleeve is clamped by the first layer 401 and the first baffle 45, and the second layer 402 and the second baffle 46, the increased roughness increases the friction, and the grinding sleeve 48 keeps rotating when the spindle 3 rotates.
[0044] When it is necessary to replace the chuck assembly 4, simply loosen the fastening bolt 44 to remove the chuck assembly 4. With the cooperation of the slot 31 and the chuck shaft 42, the chuck assembly 4 is ensured to rotate when the spindle 3 rotates. Replacement is easy and the chuck assembly 4 is kept in sync with the spindle 3 after fixing.
[0045] The connecting pipe 23, embedded in the mounting groove 11, does not interfere with the operator's hand position during operation due to its embedded design, thus avoiding any impact on operation. The outer end of the connecting pipe 23 connects to existing suction or blowing equipment, allowing air to enter or exit through the air exchange port 22 of the annular pipe 21. When air enters, the generated dust is sucked in; when air is blown out, the dust is blown away. The shape and position of the annular pipe 21 and the air exchange port 22 can generate airflow around the clamp component 4, resulting in more efficient processing.
[0046] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] The above provides a detailed description of an automated porcelain rim polishing mechanism provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. An automated polishing mechanism for the rim of porcelain, comprising a machine body, characterized in that, An installation groove extending along the fuselage is provided on the outer side of the fuselage, and a ventilation component is installed at the working end of the fuselage. The ventilation component includes a connecting pipe that is fitted into the installation groove of the fuselage. A spindle is mounted on the working end of the machine body, and a detachable chuck assembly is mounted on the outer end of the spindle. The chuck assembly includes: The chuck sleeve is detachably fixed to the outside of the spindle; The grinding sleeve is fitted on the outside of the chuck sleeve, and a cavity is formed between the grinding sleeve and the chuck sleeve. The limiting bracket, which is detachably fixed to the chuck sleeve, is used to clamp the grinding sleeve between the limiting bracket and the chuck sleeve.
2. The automated porcelain rim polishing mechanism according to claim 1, characterized in that, The ventilation component also includes an annular tube fixed to the working end of the machine body. The axis of the annular tube coincides with the axis of the main shaft. On the outward side of the annular tube, there are multiple evenly distributed ventilation ports. The extension line of the ventilation ports passes through the outside of the clamp component. The connecting pipe is connected to the annular tube and communicates with it. The outer end of the connecting pipe is used to connect to the air intake device or the air outlet device.
3. The automated porcelain rim polishing mechanism according to claim 1, characterized in that, The outer wall of the spindle has an outwardly extending through groove, and the inner wall of the chuck sleeve has a corresponding retaining shaft. When the chuck sleeve is sleeved with the spindle, the retaining shaft engages with the corresponding groove.
4. The automated porcelain rim polishing mechanism according to claim 1, characterized in that, The inside of the chuck sleeve also has a partition for sealing the chuck sleeve. The partition is used to abut against the end of the spindle, and a fastening bolt for fixing the partition and the spindle passes through the outer side of the partition.
5. The automated porcelain rim polishing mechanism according to claim 4, characterized in that, The chuck sleeve has two outwardly extending baffles at its two ends, and the grinding sleeve has a fixing layer at both ends. The fixing layer at both ends is in contact with the baffles at both ends, and the limiting frame is used to press the fixing layer at both ends against the baffles at both ends, respectively.
6. The automated porcelain rim polishing mechanism according to claim 5, characterized in that, The outer diameters of baffle one and baffle two are both larger than the outer diameter of the chuck sleeve.
7. The automated porcelain rim polishing mechanism according to claim 5, characterized in that, The inner diameter of the grinding sleeve is the same as that of the first baffle. The fixing layers at both ends of the grinding sleeve are split and can be bent inward. The fixing layers at both ends are used to abut against the outward side of the first baffle and the second baffle, respectively.
8. The automated porcelain rim polishing mechanism according to claim 7, characterized in that, The outer side of the chuck sleeve has a sliding opening for a through baffle plate; The limiting frame includes a first layer, a second layer, a connecting shaft for connecting the first layer and the second layer, and an inner ring layer fixed to the inward side of the connecting shaft; The connecting shaft is slidably set inside the sliding opening. Layer 1 is located outside of baffle 1, and layer 2 is sleeved on the outside of the chuck sleeve. Layer 1 and baffle 1 are used to squeeze the fixed layer at one end, and layer 2 and baffle 2 are used to squeeze the fixed layer at the other end. The inner ring layer is sleeved inside the chuck sleeve and is fixed to the partition layer by bolts.
9. The automated porcelain rim polishing mechanism according to claim 8, characterized in that, The outer diameter of layer one is the same as the outer diameter of baffle one, and the outer diameter of layer two is the same as the outer diameter of baffle two.
10. The automated porcelain rim polishing mechanism according to claim 5, characterized in that, The grinding sleeve and the fixing layers at both ends are made of sandpaper.
Citation Information
Patent Citations
A porcelain polishing tool
CN222726305U
