Ceramic finished product bottom edge grinding method

Abstract

An edge grinding method for the bottom edge of a ceramic finished product is characterized by comprising the following steps that a, the ceramic finished product is obtained from feeding equipment; b, carrying out at least one multi-angle fine grinding processing on the bottom edge of the ceramic finished product; c, the processed ceramic finished product is sent to a sending-out device; according to the multi-angle fine grinding machining in the step b, at least two abrasive belts are adopted to form round-rod-shaped arc-shaped curved surfaces protruding outwards, and meanwhile the round-rod-shaped arc-shaped curved surfaces rub against the bottom edge of the ceramic finished product rotating in the horizontal plane, so that the bottom edge is ground. Compared with the prior art, the grinding device has the beneficial effects that the grinding belt is adopted to form a round-rod-shaped arc-shaped curved surface protruding outwards to be in contact with the bottom edge of a rotating ceramic finished product to achieve grinding, so that the inner side and the outer side of the bottom edge of the ceramic finished product can be ground, the cost can be greatly reduced, and equipment replacement and maintenance are easier; and by adopting a plurality of abrasive belts, the grinding efficiency can be improved, and the stress of the ceramic finished product is more uniform, so that the grinding effect is effectively ensured.

Description

Technical Field

[0001] The invention relates to an edge grinding method for the bottom edge of a finished ceramic product. Background Art

[0002] The bottom of a finished ceramic product usually has a bottom edge, and the bottom edge usually has problems such as a rough surface and easy to cut the user's hands. Therefore, special bottom edge grinding equipment is required to process the bottom edge.

[0003] At present, the bottom edge grinding equipment usually uses a disc-shaped grinding disc to rotate continuously, so as to grind the bottom edge of the finished ceramic product. For example, a Chinese patent document with the announcement number CN202377883U and the name "Automatic bottom grinding machine for ceramic products" discloses an automatic bottom grinding machine for ceramic products, which includes an upper frame and a lower frame, and the lower frame is provided with a circulating transmission belt and a first motor, and the circulating transmission belt is driven by the first motor; the upper frame is equipped with a grinding plate assembly; the grinding plate assembly includes a horizontal grinding plate and a second motor driving the horizontal grinding plate to rotate, the rotating shaft of the horizontal grinding plate is installed in the vertical direction, the rotating shaft of the horizontal grinding plate is connected to the rotating shaft of the second motor, and the horizontal grinding plate is located at the bottom of the grinding plate assembly; the upper frame is also provided with a vertical power mechanism that drives the grinding plate assembly to move up and down; the upper frame is fixedly equipped with a first photoelectric eye device, and the grinding plate assembly is located in front of the first photoelectric eye device; a PLC programming controller is also provided, the first photoelectric eye device is connected to the PLC programming controller through a signal line, and the PLC programming controller is connected to the vertical power mechanism through a signal line.

[0004] However, the applicant found that the disadvantage of this processing method is that the grinding disc, that is, the disc-shaped grinding disc, is used for grinding on its top or bottom surface. Therefore, during grinding, a plane of the grinding disc is actually constantly rubbing against the bottom edge of the finished ceramic product. Although the processing speed is fast, there are many disadvantages: due to the shrinkage of the finished ceramic product, individual differences are large, and the lifting distance of the grinding disc during operation is preset, so it is easy to cause the grinding disc to drop to the lowest point but not touch the finished ceramic product or the grinding disc to crush the finished ceramic product, and the probability is not low; the grinding accuracy is low, and it is difficult to obtain fine grinding on the bottom edge, especially the grinding disc is difficult to grind the inside and outside of the bottom edge, so it is impossible to process a smooth curved surface or multiple curved surfaces, which is difficult to meet people's increasingly high quality requirements for finished ceramic products. In addition, the cost of the grinding disc is high, and the driving requires a lot of electricity, so the manufacturing and use costs are high. Moreover, the area where the grinding disc is used is limited, and the unused part is wasted. Summary of the invention

[0005] The purpose of the present invention is to provide a method for grinding the bottom edge of a ceramic product, which can grind the inner and outer sides of the bottom edge of the ceramic product at a low cost. The technical solution adopted is as follows: A method for grinding the bottom edge of a finished ceramic product, characterized in that it comprises the following steps: a. Obtain finished ceramic products from the feeding equipment; b. Perform multi-angle fine grinding on the bottom edge of the finished ceramic product at least once; c. Send the processed ceramic products to the delivery equipment; The multi-angle fine grinding process in step b is to use at least two sanding belts to form a round rod-shaped arc surface protruding outward and rub against the bottom edge of the ceramic product rotating in a horizontal plane to grind the bottom edge. The purpose of using multiple sanding belts is to improve the grinding efficiency and make the ceramic product more uniformly stressed, thereby effectively ensuring the grinding effect; and the use of sanding belts can greatly reduce the production cost and use cost, and it is easier to replace the sanding belts and maintain the equipment.

[0006] In a preferred solution, during grinding, the abrasive belt is stationary, and the finished ceramic product rotates in a horizontal plane so that the bottom edge of the finished ceramic product rubs against the abrasive belt to complete the grinding of the bottom edge.

[0007] In a more optimal solution, the central axis of the round rod-shaped arc surface has an angle with the horizontal plane, and the angle is 1-10 degrees. This design is to better process the bottom edge, and the manufacturer can set the size of the angle according to the bottom edge profile required. In a preferred solution, the two sanding belts are symmetrically arranged relative to the bottom edge of the finished ceramic product, and the round rod-shaped arc surfaces of the two sanding belts have the same angle with the horizontal plane. This design can make the finished ceramic product more evenly stressed.

[0008] A better solution is to change the position of the grinding area of ​​each abrasive belt after completing at least one grinding process, so that each abrasive belt uses a different position to grind the bottom edge of the finished ceramic product in the subsequent grinding process. The grinding area refers to the area where the abrasive belt contacts the bottom edge of the finished ceramic product during grinding. This can make full use of the abrasive belt, reduce the consumption of the abrasive belt, effectively reduce costs, and ensure the quality of processing.

[0009] A better solution is to use two abrasive belts, which grind the two sides of the bottom edge of the finished ceramic product respectively. The two abrasive belts are respectively arranged on both sides of the bottom edge of the finished ceramic product, so that the finished ceramic product can be subjected to more uniform force and the quality of the grinding process can be better guaranteed.

[0010] In a preferred solution, the position of the finished ceramic product is calibrated before taking it away in step a. The purpose of this is to put the finished ceramic product in the correct position so that the finished ceramic product can be accurately operated at each workstation (including but not limited to grinding, grabbing, putting down, etc.), improve work efficiency, and improve processing results. Since the size of different finished ceramic products may vary greatly, if the position of the finished ceramic product is not accurate when it is taken away by the pick-and-place equipment (especially when the pick-and-place equipment uses a commonly used vacuum suction cup to pick up the finished ceramic product), it may affect the processing quality of subsequent processing steps.

[0011] A better solution is that in step c, the finished ceramic product that has completed all processing is sent to a delivery device, and the delivery device sends the finished ceramic product away.

[0012] In a preferred solution, a step d is provided between the steps b and c, for cleaning and / or wiping the bottom edge.

[0013] A more optimal solution is that a step e is provided between the steps d and c, and a bottom label is printed on the bottom surface of the finished ceramic product.

[0014] Compared with the prior art, the beneficial effects of the present invention are that a sanding belt is used to form a round rod-shaped arc surface protruding outward to contact the bottom edge of the rotating ceramic product to achieve grinding, so that the inner and outer sides of the bottom edge of the ceramic product can be ground, and the cost can be greatly reduced, and the replacement and maintenance of equipment are easier; and the use of multiple sanding belts can improve the grinding efficiency and make the ceramic product more evenly stressed, thereby effectively ensuring the grinding effect; the central axis of the round rod-shaped arc surface has an angle with the horizontal surface, so that the producer can set the size of the angle according to the bottom edge contour required to obtain, thereby achieving grinding of the inner and outer sides of the bottom edge of the ceramic product; and after the grinding process is completed, the position of each sanding belt is changed, so that the sanding belt can use different positions to grind the bottom edge of the ceramic product, fully utilize the sanding belt, reduce the consumption of the sanding belt, effectively reduce the cost, and ensure the quality of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2 yes Figure 1 A schematic structural diagram of a grinding device according to the embodiment shown; Figure 3 yes Figure 2 Schematic diagram after removing the mounting frame and positioning slots; Figure 4 yes Figure 1 A schematic structural diagram of a finished ceramic product processed by the illustrated embodiment. DETAILED DESCRIPTION

[0016] like Figure 4 As shown, a ceramic product 7 processed by an embodiment of the present application has a bottom edge 701 at the bottom.

[0017] In one embodiment of the present application, a method for grinding the bottom edge of a finished ceramic product comprises the following steps: a. Obtaining finished ceramic products 7 from the feeding device; b. Performing at least one multi-angle fine grinding process on the bottom edge 701 of the finished ceramic product 7; c. Send the processed ceramic product 7 to the delivery device; The multi-angle fine grinding process in step b is to use at least two sanding belts to form a round rod-shaped arc surface protruding outward and rub against the bottom edge 701 of the ceramic finished product 7 rotating in the horizontal plane to grind the bottom edge 701. The purpose of using multiple sanding belts is to improve the efficiency of grinding and make the ceramic finished product 7 more uniformly stressed, thereby effectively ensuring the grinding effect; and the use of sanding belts can greatly reduce the production cost and the cost of use, and it is easier to replace and maintain the equipment. According to the needs of processing accuracy, sanding belts with different parameters can be used. For example, 60 mesh or 120 mesh is used for rough grinding, and 300 mesh is used for fine grinding.

[0018] like Figure 2 , 3 As shown, an optional embodiment, the rod-shaped arc surface is obtained by an annular abrasive belt wrapped around two horizontally extending and parallel guide rollers, the two guide rollers are one above and one below, and the annular abrasive belt area around the upper guide roller forms the rod-shaped arc surface. The device is a grinding unit 3021.

[0019] In an optional embodiment, during grinding, the abrasive belt is stationary, and the finished ceramic product 7 rotates in a horizontal plane so that the bottom edge 701 of the finished ceramic product 7 rubs against the abrasive belt to complete the grinding of the bottom edge 701 .

[0020] like Figure 2 , 3 As shown in an optional embodiment, the central axis of the round rod-shaped arc surface has an angle with the horizontal surface, and the angle is 1-10 degrees. This design is to better process the bottom edge 701, and the manufacturer can set the size of the angle according to the bottom edge 701 profile to be obtained.

[0021] like Figure 2 , 3 As shown, in an optional embodiment, two abrasive belts are symmetrically arranged relative to the bottom edge 701 of the ceramic product 7, and the round rod-shaped arc surfaces of the two abrasive belts have the same angle with the horizontal plane. Such a design can make the ceramic product 7 more evenly stressed.

[0022] like Figure 2, 3 As shown, in an optional embodiment, the angle between the central axis of the circular rod-shaped arc surface and the horizontal plane is 4 degrees.

[0023] In an optional embodiment, the angle between the central axis of the circular rod-shaped arcuate surface and the horizontal plane is 1 degree.

[0024] In an optional embodiment, the angle between the central axis of the round rod-shaped arc surface and the horizontal plane is 10 degrees.

[0025] like Figure 2 , 3 As shown, in an optional embodiment, after completing at least one grinding process, the position of the grinding area of ​​each abrasive belt is changed, so that each abrasive belt grinds the bottom edge 701 of the ceramic finished product 7 at a different position during the subsequent grinding process of the bottom edge 701 of the ceramic finished product 7. The grinding area refers to the area where the abrasive belt contacts the bottom edge of the ceramic finished product during grinding. In this way, the abrasive belt can be fully utilized, the consumption of the abrasive belt can be reduced, the cost can be effectively reduced, and the processing quality can be guaranteed.

[0026] like Figure 2 , 3 As shown, an optional embodiment uses the extension and contraction of the cylinder 3022 to change the position of the abrasive belt, that is, to move the grinding unit 3021 a certain distance in the horizontal plane. This actually changes the position of the grinding zone along the lateral direction of the abrasive belt.

[0027] like Figure 2 , 3 As shown, in an optional embodiment, the abrasive belt moves a certain distance in the longitudinal direction. This is to change the position of the grinding zone in the longitudinal direction of the abrasive belt (the direction in which the abrasive belt extends). The grinding unit 3021 can use a guide roller to rotate manually or by a motor, so that the guide roller drives the abrasive belt to move a certain distance in the longitudinal direction. The distance of each movement is greater than the diameter of the grinding zone. The specific value can be obtained by the manufacturer through a small number of experiments.

[0028] like Figure 2 , 3 As shown in the figure, an optional embodiment changes the position of the grinding zone, first moves the grinding zone along the lateral direction of the abrasive belt, and when the grinding zone moves to the edge of the abrasive belt, moves the grinding zone along the longitudinal direction of the abrasive belt once, and then moves the grinding zone in the lateral direction of the abrasive belt in the opposite direction. In other words, the moving track of the grinding zone on the abrasive belt is a continuously winding S-shaped curve, so that the abrasive belt can be used to the maximum extent.

[0029] In an optional embodiment, the number of the abrasive belts is three, and the three abrasive belts are evenly distributed along the circumference of the bottom edge 701 of the finished ceramic product 7 and grind the bottom edge 701 synchronously.

[0030] like Figure 2 ,3 As shown, an optional embodiment, the number of the abrasive belts is two, and the two abrasive belts grind the two sides of the bottom edge 701 of the finished ceramic product 7 respectively. The two abrasive belts are respectively arranged on both sides of the bottom edge 701 of the finished ceramic product 7, so that the finished ceramic product 7 can be subjected to force more evenly and the quality of the grinding process can be better guaranteed. In this embodiment, two grinding units 3021, one of which is arranged on the cylinder 3022, can change the relative positions of the two grinding units 3021. The cylinder 3022 and the two grinding units 3021 constitute a grinding mechanism 302. In this embodiment, the mounting frame 301, the positioning groove 303, and the two grinding mechanisms 302 constitute a grinding device 3.

[0031] In one embodiment, the two grinding units 3021 are respectively disposed on two cylinders 3022. The two cylinders 3022 respectively drive the two grinding units 3021 to move, thereby changing the relative positions of the two grinding units 3021.

[0032] like Figure 1 As shown, in an optional embodiment, the multi-angle fine grinding process is performed twice.

[0033] In an optional embodiment, the multi-angle fine grinding process is performed once.

[0034] In an optional embodiment, before the ceramic finished product 7 is taken away in step a, the position of the ceramic finished product 7 is first calibrated. The purpose of this is to put the ceramic finished product 7 in the correct position so that the ceramic finished product 7 can be accurately operated in each station (including but not limited to grinding, grabbing, putting down, etc.), improve work efficiency, and improve processing results. Since the size of different ceramic finished products 7 may vary greatly, if the position of the ceramic finished product 7 is not accurate when it is taken away by the pick-and-place device (especially when the pick-and-place device uses a commonly used vacuum suction cup to pick up the ceramic finished product 7), it may affect the processing quality of subsequent processing steps.

[0035] like Figure 1 As shown, the step a uses a conveyor belt 4 with a calibration mechanism to complete the conveying and calibration of the finished ceramic product 7. In this embodiment, the conveyor belt 4 uses a general belt conveyor belt, and a calibration mechanism consisting of a plurality of calibration units consisting of a cylinder and a positioning rod is arranged at the outlet of the conveyor belt 4. Specifically, a calibration station is arranged at the outlet of the conveyor belt 4, and each calibration unit is evenly arranged along the circumference of the calibration station. The piston shaft of the cylinder of each calibration unit extends toward the calibration station respectively, and the positioning rod of each calibration unit is respectively installed on the piston shaft of the corresponding cylinder. When the finished ceramic product 7 moves to the calibration station and stops, the positioning rods of each calibration unit move toward the calibration station respectively, pushing the finished ceramic product 7 to move to the accurate position, thereby realizing the calibration of the finished ceramic product 7.

[0036] In an optional embodiment, the step c sends the finished ceramic product 7 that has completed all the processing to a delivery device, and the delivery device 5 sends away the finished ceramic product 7. The delivery device 5 adopts a belt conveyor.

[0037] In an optional embodiment, a step d is further provided between the steps b and c, for cleaning and / or wiping the bottom edge 701 .

[0038] In an optional embodiment, the cleaning process in step d is to spray water to clean the bottom edge 701 of the ceramic product 7, and the wiping bottom edge process is to wipe clean the bottom edge 701 of the ceramic product 7. After the ground ceramic product 7 passes through step d, the bottom of the ceramic product 7 is cleaned and wiped dry.

[0039] In step d, a cleaning and / or wiping device is used to clean and / or wipe the bottom edge 701, which is not shown in the figure. In this embodiment, the cleaning and / or wiping device is a general cleaning and / or wiping device.

[0040] In an optional embodiment, a step e is provided between the steps d and c, and a bottom label is printed on the bottom surface of the ceramic product 7 .

[0041] like Figure 1 As shown, in step e, a bottom label printing device 6 is used to complete the work of printing a bottom label on the bottom surface of the ceramic finished product 7. In this embodiment, the bottom label printing device 6 adopts a general printing device.

[0042] like Figure 1 As shown, an optional embodiment uses a turntable synchronous lifting transfer device 1 and a plurality of rotary vacuum suction cup pick-and-place devices 2 installed on the turntable synchronous lifting transfer device 1 to complete the transfer of the finished ceramic product 7 between various processing devices. In this embodiment, the turntable synchronous lifting transfer device 1 and the rotary vacuum suction cup pick-and-place device 2 are both universal devices.

[0043] Six workstations A, B, B, D, E, and C are arranged around the turntable-type synchronous lifting and transferring equipment 1. The number of rotary vacuum suction cup pick-and-place devices 2 is 12, with 2 arranged at each workstation. Among them, a conveyor belt 4 is arranged at the A workstation to simultaneously deliver two finished ceramic products; two B workstations are respectively provided with grinding devices 3, and each grinding device 3 grinds two finished ceramic products at the same time; a cleaning and / or wiping device (not shown) is arranged at the D workstation to simultaneously clean and / or wipe the two finished ceramic products; a bottom label printing device 6 is arranged at the E workstation to simultaneously print bottom labels on the bottom surfaces of the two finished ceramic products; a delivery device 5 is arranged at the C workstation to simultaneously deliver two processed finished ceramic products.

[0044] Since the round rod-shaped arc surface formed by the sanding belt is used to grind the bottom edge of the ceramic product, the inner side, the edge of the bottom end, and the outer side of the bottom edge can be well ground to obtain one or more curved surfaces to meet the needs of high-quality ceramic products; and the central axis of the round rod-shaped arc surface has an angle with the horizontal surface, which is convenient for the round rod-shaped arc surface to extend into the inner side of the bottom edge or extend to the outer side of the bottom edge, so that the bottom edge can be better ground. When multiple sanding belts are symmetrically arranged, the horizontal force components of the forces they exert on the ceramic product can offset each other (partially offset or completely offset), so that the ceramic product is more evenly stressed; after the grinding process, changing the position (horizontally or vertically) of the grinding area of ​​each sanding belt can make full use of the sanding belt, reduce the consumption of the sanding belt, effectively reduce the cost, and ensure the quality of the processing; before taking away the ceramic product 7, calibrate the position of the ceramic product 7 first, which can further ensure the quality of subsequent processing, especially for the embodiment of using a vacuum suction cup to pick up and place the ceramic product (such as Figure 1 as shown).

[0045] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. The technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A method for grinding the bottom edge of a finished ceramic product, characterized in that: The following steps are involved: a. Obtain finished ceramic products from the feeding equipment; b. Perform multi-angle fine grinding on the bottom edge of the finished ceramic product at least once; c. Send the processed ceramic products to the delivery equipment; The multi-angle fine grinding process in step b is to use at least two abrasive belts to form round rod-shaped arc surfaces protruding outward and rub against the bottom edge of the ceramic product rotating in a horizontal plane to grind the bottom edge.

2. The method for grinding the bottom edge of a finished ceramic product according to claim 1, characterized in that: During grinding, the abrasive belt is stationary, and the finished ceramic product rotates in a horizontal plane so that the bottom edge of the finished ceramic product rubs against the abrasive belt to complete the grinding of the bottom edge.

3. The method for grinding the bottom edge of a finished ceramic product according to claim 2, characterized in that: The central axis of the circular rod-shaped arc surface forms an angle with the horizontal surface, and the angle is 1-10 degrees.

4. The method for grinding the bottom edge of a finished ceramic product according to claim 3, characterized in that: After completing at least one grinding process, the position of the grinding area of ​​each abrasive belt is changed, so that each abrasive belt grinds the bottom edge of the ceramic product in a different position during the subsequent grinding process of the bottom edge of the ceramic product.

5. The method for grinding the bottom edge of a finished ceramic product according to any one of claims 1 to 4, characterized in that: There are two abrasive belts, and the two abrasive belts grind the two sides of the bottom edge of the finished ceramic product respectively.

6. The method for grinding the bottom edge of a finished ceramic product according to any one of claims 1 to 4, characterized in that: The multi-angle fine grinding process is performed twice.

7. The method for grinding the bottom edge of a finished ceramic product according to any one of claims 1 to 4, characterized in that: Before taking away the finished ceramic product in step a, the position of the finished ceramic product is first calibrated.

8. The method for grinding the bottom edge of a finished ceramic product according to any one of claims 1 to 4, characterized in that: In step c, the finished ceramic product that has completed all processing is sent to a delivery device, and the delivery device sends the finished ceramic product away.

9. The method for grinding the bottom edge of a finished ceramic product according to any one of claims 1 to 4, characterized in that: A step d is further provided between the steps b and c, for cleaning and / or wiping the bottom edge.

10. The method for grinding the bottom edge of a finished ceramic product according to claim 9, characterized in that: A step e is further provided between the step d and the step c, in which a bottom label is printed on the bottom surface of the ceramic finished product.

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