Elastic grinding block, its preparation method and application

Abstract

The application discloses an elastic grinding block and a preparation method and application thereof. The elastic grinding block comprises a working cutter head, the working cutter head comprises a grinding head array, and the grinding head array is arranged by grinding heads. The grinding heads are made of raw materials including the following components by weight: 3-20 parts of main abrasive, 8-20 parts of auxiliary abrasive, 25-60 parts of resin, 0-20 parts of filler, and 0-30 parts of metal salt. The elastic grinding block prepared in the application does not produce chippings during use, that is, there is no dust pollution. When the elastic grinding block is used to polish ceramic tiles, the glossiness of the ceramic tiles is higher, the glossiness is more uniform, the excellent rate of the polished ceramic tile workpieces is higher, and the working cutter head, the elastic clamping seat and the elastic rubber pad are not easy to separate during use, and the phenomenon of machine explosion and interruption of the polishing workpieces caused by glue falling off and falling into the clamping groove is avoided.

Description

Technical Field

[0001] This invention belongs to the field of abrasives, specifically relating to an elastic abrasive block, its preparation method, and its application. Background Technology

[0002] Currently, the preparation method of elastic grinding blocks on the market is as follows: first, hot-press the working head, then remove the burrs on the working head after hot pressing, and then bond the working head, elastic seat and elastic rubber pad together with adhesive, and press them on the overall pneumatic press to complete the assembly. Therefore, the elastic grinding blocks prepared by the traditional process have the following problems in use: (1) Since the working head, elastic seat and elastic rubber pad are bonded with adhesive, the bonding is not firm, and the bonded parts are easy to crack under stress during use, resulting in a short service life; (2) The traditional process requires hot pressing and other operations, the preparation process is long, the cost is high, the energy consumption is high, and the yield rate is low; (3) The working heads prepared by the existing process are not marked, the working heads are messy, which brings great trouble to their use. Summary of the Invention

[0003] In order to overcome at least one of the problems existing in the prior art, one of the objectives of the present invention is to provide an elastic grinding block.

[0004] The second objective of this invention is to provide a method for preparing an elastic grinding block.

[0005] The third objective of this invention is to provide a ceramic tile grinding device.

[0006] The fourth objective of this invention is to provide an application of an elastic grinding block in a workpiece grinding equipment.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] The first aspect of the present invention provides an elastic grinding block, the elastic grinding block comprising a working head, the working head comprising a grinding head array, the grinding head array being formed by arranging grinding heads; the grinding head being made of raw materials comprising the following parts by weight: 3-20 parts of main abrasive, 8-20 parts of auxiliary abrasive, 25-60 parts of resin liquid, 0-20 parts of filler, and 0-30 parts of metal salt.

[0009] Preferably, the elastic grinding block further includes an elastic retainer and an elastic rubber pad; the elastic retainer is connected to the elastic rubber pad; the working head includes a connecting part and a grinding head array; the connecting part is disposed on the surface of the elastic rubber pad facing away from the elastic retainer, and the grinding head array is disposed on the surface of the connecting part facing away from the elastic rubber pad.

[0010] Preferably, the connecting part is a nylon hook surface.

[0011] Preferably, the free end of the grinding head is arc-shaped, the surface of the elastic rubber pad that contacts the connecting part is arc-shaped, and the connecting part is arc-shaped. More preferably, the grinding head, the elastic rubber pad, and the connecting part have the same curvature.

[0012] Preferably, the elastic holder has a connecting hole and a slot; the connecting hole is located on the side of the elastic holder away from the elastic rubber pad; a portion of the elastic rubber pad is located within the slot. The connecting hole is used to mount the elastic abrasive block onto the grinding equipment. The slot design makes the connection between the elastic holder and the elastic rubber pad more secure, preventing them from separating during use.

[0013] Preferably, the main abrasive is selected from diamond, cubic boron nitride, or a combination thereof.

[0014] Preferably, the auxiliary abrasive is selected from at least one of silicon carbide, white corundum, and garnet.

[0015] Preferably, the resin liquid is selected from phenolic resin liquid, epoxy resin liquid, or a combination thereof.

[0016] Preferably, the filler is selected from at least one of zinc oxide, zirconium oxide, cerium oxide, cryolite, silicon dioxide, nylon powder, tetrafluoroethylene, and nitrile rubber.

[0017] Preferably, the metal salt is selected from at least one of sodium chloride, potassium chloride, and calcium chloride.

[0018] Preferably, the raw materials for preparing the grinding head also include 1 to 10 parts by weight of a diluent.

[0019] Preferably, the diluent is selected from at least one of ethanol, propanol, and butanol.

[0020] The second aspect of the present invention provides a method for preparing the elastic grinding block provided in the first aspect of the present invention, comprising the following steps:

[0021] S1: Mix the various raw materials for preparing the grinding head into a slurry, inject it into the mold, then place the connecting part into the mold, and then connect the connecting part, the elastic rubber pad and the elastic seat with adhesive.

[0022] S2: Apply pressure, and after the grinding head solidifies, demold to obtain the elastic grinding block.

[0023] Preferably, the elastic card holder is first printed with the particle size number of the grinding block using an inkjet printer before use.

[0024] Preferably, the mold core is kept clean before use and a release agent is sprayed onto the mold core.

[0025] Preferably, step S1 is as follows: the raw materials for preparing the grinding head are mixed into a slurry, the slurry is then injected into the mold core, leveled, and a connecting part is placed in the mold. The connecting part, the elastic rubber pad, and the elastic seat are then connected together with an adhesive.

[0026] Preferably, the step of applying pressure is performed using a pneumatic compressor.

[0027] Preferably, the pressure is 4 to 6 MPa.

[0028] Preferably, the pressure application time is 15 to 30 minutes.

[0029] Preferably, the curing temperature in step S2 is 10–40°C.

[0030] Preferably, the curing time is 2 to 6 hours.

[0031] A third aspect of the present invention provides a tile grinding device, including the elastic grinding block provided in the first aspect of the present invention. The elastic grinding block is mounted on the grinding device through a connecting hole on an elastic holder, thereby automating the grinding of the tile surface.

[0032] The fourth aspect of the present invention provides the application of the elastic grinding block provided in the first aspect of the present invention in a workpiece grinding device.

[0033] Preferably, the workpiece comprises a ceramic tile.

[0034] The beneficial effects of this invention are as follows: When the elastic grinding block prepared in this invention is used to grind ceramic tiles, the tiles have a higher and more uniform gloss, resulting in a higher rate of high-quality finished products. Furthermore, during use, the working head, elastic holder, and elastic rubber pad are less prone to separation, reducing the likelihood of machine breakage or interruption of grinding operations due to delamination or falling out of the slot. The preparation method of the elastic grinding block in this invention involves pouring liquid into a mold core for the grinding head, curing it at a low temperature, and simultaneously applying pressure to tightly bond the working head, elastic holder, and elastic rubber pad, completing the assembly in one step. This eliminates raw material dust pollution during the entire production process. Compared to conventional preparation processes, the preparation method in this invention greatly simplifies the preparation steps, improves production efficiency, increases product qualification rate, ensures quality stability, and is suitable for large-scale industrial production. In addition, the synergistic effect of bonding and pressure ensures tighter contact at the bonding points, preventing weak adhesion. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the elastic grinding block in this invention.

[0036] Figure 2This is a top view of the elastic grinding block in this invention.

[0037] Figure 3 This is a bottom view of the elastic grinding block in this invention.

[0038] Figure 4 This is an assembly diagram of the elastic grinding block and the mold in this invention.

[0039] Figure 5 The image shows the gloss test results of the workpieces polished using commercially available elastic abrasive blocks and the elastic abrasive blocks in Example 1. Detailed Implementation

[0040] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and examples, but the implementation and protection of the present invention are not limited thereto. It should be noted that any processes not specifically described in detail below are those that can be implemented or understood by those skilled in the art by referring to the prior art. Reagents or instruments used without specified manufacturers are all conventional products that can be purchased commercially. In the description of the present invention, it should be understood that the terms "thickness," "upper," "middle," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of simplifying the description of the present invention, 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, and therefore should not be construed as a limitation of the present invention.

[0041] In some embodiments of the present invention, the present invention provides an elastic grinding block, the elastic grinding block including a working cutter head, the working cutter head including a grinding head array, the grinding head array being formed by arranging grinding heads; the grinding head is made of raw materials comprising the following parts by weight: 3-20 parts of main abrasive, 8-20 parts of auxiliary abrasive, 25-60 parts of resin liquid, 0-20 parts of filler, and 0-30 parts of metal salt.

[0042] In some embodiments of the present invention, the grinding head is made of raw materials comprising the following parts by weight: 5-15 parts of main abrasive, 15-20 parts of auxiliary abrasive, 25-40 parts of resin liquid, 10-20 parts of filler, and 15-30 parts of metal salt.

[0043] In some embodiments of the present invention, the elastic grinding block further includes an elastic retainer and an elastic rubber pad; the elastic retainer is connected to the elastic rubber pad; the working head includes a connecting part and a grinding head array; the connecting part is disposed on the surface of the elastic rubber pad facing away from the elastic retainer, and the grinding head array is disposed on the surface of the connecting part facing away from the elastic rubber pad.

[0044] In some embodiments of the present invention, the connecting part is a nylon hook surface.

[0045] In some embodiments of the present invention, the free end of the grinding head is arc-shaped, the surface of the elastic rubber pad in contact with the connecting portion is arc-shaped, and the connecting portion is arc-shaped. In some embodiments of the present invention, the grinding head, the elastic rubber pad, and the connecting portion have the same curvature. In some embodiments of the present invention, the elastic rubber pad and the connecting portion have the same curvature, but the curvature of the grinding head is different from that of the connecting portion.

[0046] In some embodiments of the present invention, the elastic holder is provided with a connecting hole and a slot; the connecting hole is located on the side of the elastic holder away from the elastic rubber pad; a portion of the elastic rubber pad is located within the slot. The connecting hole is used to mount the elastic abrasive block onto the grinding equipment. The slot design makes the connection between the elastic holder and the elastic rubber pad more secure, preventing the elastic holder and the elastic rubber pad from separating during use.

[0047] In some embodiments of the present invention, the main abrasive is selected from diamond, cubic boron nitride, or a combination thereof. In some embodiments of the present invention, the main abrasive is diamond.

[0048] In some embodiments of the present invention, the auxiliary abrasive is selected from at least one of silicon carbide, white fused alumina, and garnet. In some embodiments of the present invention, the auxiliary abrasive is white fused alumina.

[0049] In some embodiments of the present invention, the resin liquid is selected from phenolic resin liquid, epoxy resin liquid, or a combination thereof. In some embodiments of the present invention, the resin liquid is epoxy resin.

[0050] In some embodiments of the present invention, the filler is selected from at least one of zinc oxide, zirconium oxide, cerium oxide, cryolite, silica, nylon powder, tetrafluoroethylene, and nitrile rubber. In some embodiments of the present invention, the filler is selected from zinc oxide, silica, or a combination thereof.

[0051] In some embodiments of the present invention, the metal salt is selected from at least one of sodium chloride, potassium chloride, and calcium chloride.

[0052] In some embodiments of the present invention, the raw materials for preparing the grinding head also include a diluent in the form of 1 to 10 parts by weight.

[0053] In some embodiments of the present invention, the diluent is selected from at least one of ethanol, propanol, and butanol. In some embodiments of the present invention, the diluent is selected from ethanol.

[0054] In some embodiments of the present invention, a method for preparing an elastic grinding block is provided, comprising the following steps:

[0055] S1: Mix the various raw materials for preparing the grinding head into a slurry, inject it into the mold, then place the connecting part into the mold, and then connect the connecting part, the elastic rubber pad and the elastic seat with adhesive.

[0056] S2: Apply pressure, and after the grinding head solidifies, demold to obtain the elastic grinding block.

[0057] In some embodiments of the present invention, the elastic card holder is first marked with a diamond particle size number using an inkjet printer before use.

[0058] In some embodiments of the present invention, the mold core is kept clean before use and a release agent is sprayed onto the mold core.

[0059] In some embodiments of the present invention, step S1 is as follows: the raw materials for preparing the grinding head are mixed into a slurry, the slurry is then injected into the mold core of the mold, leveled, and a connecting part is placed in the mold. The connecting part, the elastic rubber pad, and the elastic seat are then connected together by an adhesive.

[0060] In some embodiments of the present invention, the step of applying pressure is performed using a pneumatic compressor.

[0061] In some embodiments of the present invention, the pressure is 4 to 6 MPa.

[0062] In some embodiments of the present invention, the pressure application time is 15 to 30 minutes.

[0063] In some embodiments of the present invention, the curing temperature in step S2 is 10 to 40°C.

[0064] In some embodiments of the present invention, the curing time is 2 to 6 hours.

[0065] In some embodiments of the present invention, a tile grinding device is provided, including the aforementioned elastic grinding block. The elastic grinding block is mounted on the grinding device through a connecting hole on an elastic holder, thereby automating the grinding of the tile surface.

[0066] In some embodiments of the present invention, the present invention provides the application of the above-mentioned elastic grinding block in workpiece grinding equipment.

[0067] In some embodiments of the present invention, the workpiece includes ceramic tiles.

[0068] The development of this invention presented the following challenges: to ensure the grinding head slurry could cure at room temperature, and that the cured grinding head simultaneously met the requirements of sharpness and wear resistance, thus preventing chipping and workpiece damage during grinding, numerous formulations were tested, ultimately resulting in the grinding head formulation described herein. Using the resin liquid of this invention allows the grinding head slurry to cure at room temperature. Furthermore, only by employing the formulation ratios and material types of the main abrasive, auxiliary abrasive, and filler described in this invention can the grinding head slurry possess sufficient fluidity, viscosity, and castability, enabling the grinding head to be cast and molded, resulting in a grinding head with suitable sharpness and wear resistance.

[0069] Example 1

[0070] like Figures 1-3 As shown, this example provides an elastic grinding block, which includes an elastic holder 1, an elastic rubber pad 2, and a working head 3. One end of the elastic holder 1 is provided with a threaded hole, and the other end of the elastic holder 1 is provided with a mounting groove. The elastic rubber pad 2 is placed in the mounting groove, and one end of the elastic rubber pad 2 extends out of the mounting groove and connects to the working head 3. The elastic rubber pad 2 and the working head 3 are integrally formed. The working head 3 includes a connecting part and a grinding head. The connecting part and the grinding head are integrally formed. The material of the connecting part is nylon hook surface. One side of the connecting part is connected to the elastic rubber pad, and the other side of the connecting part is distributed with an array of grinding heads. The grinding head array is formed by arranging no less than two grinding heads on the connecting part, and the grinding heads are distributed on the entire surface of the connecting part. There is a gap between two adjacent grinding heads. The shape of the grinding head is cylindrical, and the surface of the grinding head that contacts the workpiece to be ground is arc-shaped. The connecting part is arc-shaped, and the surface of the elastic rubber pad that contacts the connecting part is arc-shaped. The arc of the connecting part and the elastic rubber pad is the same.

[0071] The grinding head in this example is made from the following raw materials in parts by weight: 10 parts diamond (3000#), 20 parts white corundum, 35 parts epoxy resin liquid, 10 parts zinc oxide, 4 parts silicon dioxide, 20 parts sodium chloride, and 1 part alcohol.

[0072] Reference Figure 4 The assembly diagram of the mold and the elastic grinding block during the preparation of the elastic grinding block in this invention shows that the elastic grinding block in this invention requires the use of mold 4 during preparation. Mold 4 is provided with a mold core, and the mold core has a cavity that accommodates the grinding head, the connecting part and a portion of the elastic rubber pad.

[0073] The elastic grinding block in this example is prepared using the following method, specifically including the following steps:

[0074] (1) Weigh the components of the grinding head according to the formula and mix them evenly to prepare a mixed slurry;

[0075] (2) Clean the mold core in mold 4, then spray it with release agent, inject the mixed slurry into the mold core of mold 4, fill each cutter head in the mold core with slurry, and scrape the material evenly. Then place a nylon hook surface (as a connecting part) on the upper surface of the mixed slurry, with the hook wire side of the nylon hook surface facing down and the hook wire penetrating into the slurry. Then apply glue to the smooth surface of the nylon hook surface, place an elastic rubber pad, brush glue on the other side of the elastic rubber pad, and place an elastic card seat on the glued surface of the elastic rubber pad (spray the diamond grit number on the elastic card seat with an inkjet printer to avoid confusion due to unclear diamond grit number when the elastic grinding block is used later). Place the mold and the elastic grinding block together on a pneumatic press and press with a pressure of 5MPa for 20 minutes to make the connecting part, grinding head and elastic rubber pad fully contact and bond firmly, thereby avoiding the problem of the working cutter head separating from the elastic rubber pad when the elastic grinding block is used. Then remove it and allow it to cure naturally for 3 hours. After curing and shaping, demold it to obtain the elastic grinding block in this example.

[0076] Comparative Example 1

[0077] This example provides a method for preparing an elastic grinding block, the specific preparation steps of which are as follows:

[0078] (1) The resin powder, abrasive, filler and other materials are mixed in proportion and mixed for 3 hours to obtain the formula powder. Dust pollution is generated during the proportioning and mixing process.

[0079] (2) The formula powder is put into a mold with nylon hook surface according to a certain weight, and hot-pressed at 160°C on a resin grinding wheel hot press. After holding at the temperature for 30 minutes, a grinding head is formed on the nylon hook surface to obtain a working cutter head; dust pollution is generated during the powder loading process.

[0080] (3) Place the above-mentioned working blade in an oven and cure at 140°C for 4 hours.

[0081] (4) Apply glue to one side of the elastic rubber pad and then bond it to the elastic card seat; apply glue to the other side of the elastic rubber pad and then bond it to one side of the nylon hook surface; then put the whole thing into the air press and press it with a pressure of 4-6 MPa for 5-10 minutes. After removing it and letting the glue cure completely for 0.5-1 hours, the elastic grinding block in this example is obtained.

[0082] Elastic grinding blocks were produced using the preparation methods in Example 1 and Comparative Example 1 of this invention, respectively. The results were evaluated based on the number of process steps in the preparation of the elastic grinding blocks, the average time to complete the process, the pass rate of the elastic grinding block products, and whether there was dust pollution during the use of the elastic grinding blocks. The specific test results are shown in Table 1 below.

[0083] Table 1 Comparison results of the elastic grinding block preparation processes in Example 1 and Comparative Example 1

[0084]

[0085]

[0086] As shown in Table 1, compared with Comparative Example 1, the preparation method in Example 1 shortens the process steps by 50%, reduces the production time by 50%, and increases the pass rate by 3%. Moreover, it is environmentally friendly, produces no dust pollution, and is environmentally friendly and energy-saving during the preparation process.

[0087] Performance testing:

[0088] Glazed tiles were polished using the elastic abrasive blocks described in Example 1 and commercially available elastic abrasive blocks, respectively, for the same polishing time. A photograph of the glazed tile polished using the commercially available elastic abrasive blocks is shown below. Figure 5 As shown in (a), a physical image of the glazed tile polished using the elastic abrasive block in Example 1 is shown. Figure 5 (b) shows the gloss of different parts of the polished glazed tile. The gloss test method is as follows: After polishing, the workpiece is dried, and then the tile surface is wiped clean with alcohol and a towel. Using an WGG60 gloss meter and a standard calibrated photometer, several points are tested on the cleaned tile surface and the results are recorded. The number of test samples is 1000 pieces. The test items include the gloss of the workpiece after polishing, the workpiece quality rate, and the workpiece service life. The quality rate is the number of quality workpieces / the total number of workpieces. Workpieces with no shadows, qualified gloss, no scratches, and no abrasions after polishing are considered quality products. The results obtained according to the above test method are recorded in Table 2 below.

[0089] The service life of the elastic rubber abrasive in Example 1 and the commercially available fiber abrasive block were tested respectively, and the test results are shown in Table 2.

[0090] Table 2 shows the performance test results of the workpieces polished using the elastic abrasive blocks in Example 1 and commercially available elastic abrasive blocks.

[0091] Test group gloss level of workpiece after polishing Workpiece quality rate Workpiece lifespan / hour The elastic grinding block in Example 1 101-102.5° 95％ 9-10 The elastic grinding block in Comparative Example 1 92.5-96° 90％ 9-10

[0092] Depend on Figure 5 As shown in Table 2, the glazed tiles polished with the elastic abrasive blocks of this invention have a better polishing effect and more uniform gloss, with a gloss value of 101-102.5° and a gloss difference of 1.5°. In contrast, the gloss of the glazed tiles polished with commercially available elastic abrasive blocks is uneven, with a gloss value of 92.5-96° and a gloss difference of 3.5°. In terms of gloss level and gloss difference, the glazed tiles polished with the elastic abrasive blocks of this invention are superior to those polished with commercially available elastic abrasive blocks. Furthermore, polishing with the elastic abrasive blocks of this invention can significantly improve the yield rate of the workpiece.

[0093] In summary, the elastic mold produced in this invention does not produce debris during manufacturing, thus eliminating dust pollution. Furthermore, when using the elastic grinding blocks of this invention to grind ceramic tiles, the tiles exhibit higher and more uniform gloss, resulting in a higher rate of high-quality finished products. During use, the working blade, elastic holder, and elastic rubber pad are less prone to separation, reducing the likelihood of machine breakage or workpiece interruption due to delamination or falling out of the slot. The elastic grinding blocks of this invention are prepared by pouring liquid into the mold core and curing it at low temperature. Simultaneously, pressure is applied to tightly bond the working blade, elastic holder, and elastic rubber pad, completing the assembly in one step. Compared to conventional manufacturing processes, this significantly simplifies the preparation steps, improves production efficiency, increases product qualification rate, and ensures quality stability, making it suitable for large-scale industrial production. Moreover, the synergistic effect of bonding and pressure ensures tighter contact at the bonding points, preventing weak adhesion.

[0094] The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An elastic grinding block, characterized in that: The elastic grinding block includes a working cutter head, the working cutter head includes a grinding head array, the grinding head array is formed by arranging grinding heads; the grinding head is made of raw materials comprising the following parts by weight: 5-15 parts of main abrasive, 15-20 parts of auxiliary abrasive, 25-40 parts of resin liquid, 10-20 parts of filler, and 15-30 parts of metal salt. The main abrasive is selected from diamond, cubic boron nitride, or a combination thereof; The auxiliary abrasive is selected from at least one of silicon carbide, white corundum, and garnet. The resin solution is selected from phenolic resin solution, epoxy resin solution, or a combination thereof; The filler is selected from at least one of zinc oxide, zirconium oxide, cerium oxide, cryolite, silica, nylon powder, tetrafluoroethylene, and nitrile rubber; The metal salt is selected from at least one of sodium chloride, potassium chloride, and calcium chloride; The raw materials for preparing the grinding head also include a diluent in the form of 1 to 10 parts by weight, wherein the diluent is selected from at least one of ethanol, propanol, and butanol.

2. The elastic grinding block according to claim 1, characterized in that: The elastic grinding block also includes an elastic retainer and an elastic rubber pad; the elastic retainer is connected to the elastic rubber pad; the working head includes a connecting part and a grinding head array; the connecting part is located on the surface of the elastic rubber pad facing away from the elastic retainer, and the grinding head array is located on the surface of the connecting part facing away from the elastic rubber pad.

3. The elastic grinding block according to claim 2, characterized in that: The free end of the grinding head is arc-shaped, the surface of the elastic rubber pad that contacts the connecting part is arc-shaped, and the connecting part is arc-shaped.

4. The elastic grinding block according to claim 2, characterized in that: The elastic card holder is provided with a connection hole and a card slot; the connection hole is located on the side of the elastic card holder away from the elastic rubber pad; a portion of the elastic rubber pad is located within the card slot.

5. The method for preparing the elastic grinding block according to any one of claims 2 to 4, characterized in that: Includes the following steps: S1: Mix the various raw materials for preparing the grinding head into a slurry, inject it into the mold, then place the connecting part into the mold, and then connect the connecting part, the elastic rubber pad and the elastic seat with adhesive. S2: Apply pressure, and after the grinding head solidifies, demold to obtain the elastic grinding block.

6. The method for preparing the elastic grinding block according to claim 5, characterized in that: The pressure is 4~6MPa; the pressure application time is 15~30min; And / or, the curing temperature in step S2 is 10~40℃; the curing time is 2~6h.

7. A tile grinding device, characterized in that: Includes the elastic grinding block as described in any one of claims 1 to 4.

8. The application of the elastic grinding block according to any one of claims 1 to 4 in a workpiece grinding equipment.

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