CN117207083A - Elastic rubber grinding tool and preparation method and application thereof - Google Patents
Elastic rubber grinding tool and preparation method and application thereof Download PDFInfo
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- CN117207083A CN117207083A CN202311261719.6A CN202311261719A CN117207083A CN 117207083 A CN117207083 A CN 117207083A CN 202311261719 A CN202311261719 A CN 202311261719A CN 117207083 A CN117207083 A CN 117207083A
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- 238000000465 moulding Methods 0.000 claims description 4
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 2
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Abstract
The invention discloses an elastic rubber grinding tool and a preparation method and application thereof, wherein the elastic rubber grinding tool comprises an installation clamping seat, an elastic rubber pad and a rubber grinding block, and the installation clamping seat is provided with the elastic rubber pad; the elastic rubber pad is provided with an integrally formed rubber grinding block; the rubber grinding block comprises a fixed seat, a grinding column A and a grinding column B; the fixed seat is arranged on the elastic rubber cushion; the grinding columns A and B are alternately arranged on the fixed seat in an array manner; the diameter of the grinding column A is larger than that of the grinding column B. The elastic rubber grinding tool is mainly used for polishing the surface of a matte brick or soft brick, has the function of reducing the glossiness of the brick surface, ensures that the glossiness of the polished brick surface is stable and uniform, and has very fine and smooth surface and very soft luster, thereby forming a natural silk-like luster and a matte effect.
Description
Technical Field
The invention belongs to the field of polishing, and particularly relates to an elastic rubber grinding tool, and a preparation method and application thereof.
Background
Currently, matte or soft tiles are typically surface finished with fiber blocks. The fiber grinding block is formed by rolling integral fiber filaments and resin liquid materials. The fiber grinding block is an integral body, and when in processing, the fiber layer is in contact with the whole workpiece, so that the flexible processing capability is not realized, and as the fiber grinding block is in contact with the surface of the workpiece, the surface luminosity of the processed glazed brick is uneven, shadows are formed, grinding marks and grinding patterns are easily generated on the surface, the processing surface of the obtained workpiece is rough, the processing effect is not ideal, and the use requirement of a matte brick or a soft brick in the future cannot be met.
Disclosure of Invention
In order to overcome the problems of the prior art, an object of the present invention is to provide an elastic rubber grinding tool.
The second object of the present invention is to provide a method for manufacturing an elastic rubber grinding tool.
The invention further aims to provide an application of the elastic rubber grinding tool in the field of workpiece polishing.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the first aspect of the invention provides an elastic rubber grinding tool, which comprises an installation clamping seat, an elastic rubber pad and a rubber grinding block, wherein the installation clamping seat is provided with the elastic rubber pad; the elastic rubber pad is provided with an integrally formed rubber grinding block; the rubber grinding block comprises a fixed seat, a grinding column A and a grinding column B; the fixed seat is arranged on the elastic rubber cushion; the grinding columns A and B are alternately arranged on the fixed seat in an array manner; the diameter of the grinding column A is larger than that of the grinding column B.
In the invention, the installation clamping seat is used for fixing the elastic rubber cushion and the rubber grinding block. When the rubber grinding block is in contact grinding with a workpiece, if the surface of the workpiece is uneven or the shape is changed, the rubber pad can be deformed after the rubber grinding block is stressed, so that the rubber grinding block is in flexible contact with the workpiece, and the phenomenon that the rubber grinding block generates grinding marks and grinding patterns on the surface of the workpiece is avoided. In addition, the grinding columns A and B are arranged on the fixing base in an alternating array mode to form a brush-shaped grinding tool, the brush-shaped grinding tool is more flexible and finer when in contact with a workpiece, the polishing effect is better, and the surface of the polished workpiece is finer and smoother and the glossiness is more uniform.
Preferably, the mounting clamping seat is provided with a mounting groove, and a rubber cushion is arranged in the mounting groove.
Preferably, the depth of the mounting groove is smaller than the height of the rubber pad.
Preferably, the mounting clamping seat is provided with a mounting clamping opening. The mounting bayonet is provided for mounting the elastic rubber grinder of the present invention on polishing equipment.
Preferably, the alternating array arrangement is specifically: the grinding columns A and B are arranged in an ABAB mode, the grinding columns B are arranged at four adjacent positions of the grinding column A, and the grinding columns A are arranged at four adjacent positions of the grinding column B. By adopting the arrangement, the surface of the uneven workpiece can be polished, the elastic rubber grinding tool is in point contact with the workpiece, the concave positions on the workpiece can be polished synchronously, and the grinding columns with different diameters are alternately arranged, so that the concave positions with different sizes in the workpiece can be polished, and the phenomenon that the surface of the workpiece generates dark shadows is avoided. The existing grinding tool is in surface contact with the workpiece, and the concave positions on the workpiece cannot be polished, so that shadows exist on the surface of the workpiece, the glossiness of the surface of the workpiece is large, and the polishing effect is not ideal.
Preferably, the elastic rubber pad and the fixing seat are provided with raised arc surfaces.
Preferably, the elastic rubber pad and the fixing seat are provided with arc-shaped surfaces with the radius of 130-160 mm; further preferably, the elastic rubber pad and the fixing seat are provided with arc-shaped surfaces with the radius of 135-160 mm. The radian of the elastic rubber mold and the radian of the workpiece are the same, and the elastic rubber mold and the workpiece can be better attached together, so that the elastic rubber mold and the workpiece can be deformed simultaneously in the polishing process, flexible polishing is realized, the phenomena of grinding marks, grinding patterns and the like on the surface of the workpiece are avoided, fine adjustment of the grinding surface according to the shape of the workpiece and the uneven surface of the workpiece can be realized, the elastic rubber mold and the workpiece are attached more tightly, and the grinding effect is more uniform.
Preferably, the grinding column A is a trapezoid cylinder.
Preferably, the diameter of the grinding column A is 3-6 mm.
Preferably, the grinding column B is a trapezoid cylinder.
Preferably, the diameter of the grinding column B is 6-10 mm.
Preferably, the included angle alpha between the grinding column A and the grinding column B is 2-30 ℃; further preferably, the included angle alpha between the grinding column A and the grinding column B is 3-30 ℃; still further preferably, the included angle α between the grinding column a and the grinding column B is 3 to 10 ℃. The strength of the grinding column A and the grinding column B can be enhanced by adopting the trapezoid cylindrical structure, and deformation during polishing is avoided.
Preferably, the rubber grinding block comprises the following components in parts by weight: 30-70 parts of adhesive, 10-40 parts of abrasive, 5-15 parts of filler, 10-20 parts of curing agent and 0-15 parts of catalyst.
Preferably, the rubber grinding block comprises the following components in parts by weight: 3-20 parts of diamond abrasive, 7-20 parts of auxiliary abrasive, 30-70 parts of adhesive, 5-15 parts of filler, 0-15 parts of catalyst and 10-20 parts of curing agent.
Preferably, the rubber grinding block comprises the following components in parts by weight: 8-15 parts of diamond abrasive, 15-20 parts of auxiliary abrasive, 30-50 parts of adhesive, 10-15 parts of filler, 0-5 parts of catalyst and 10-15 parts of curing agent.
Preferably, the adhesive is at least one selected from the group consisting of polyamide, epoxy resin, polyurethane.
Preferably, the curing agent is at least one selected from the group consisting of poly fatty acids, poly fatty amines, polyols, phthalic anhydride.
Preferably, the polyol comprises a polyether diol.
Preferably, the catalyst is selected from at least one of N, N-dimethylcyclohexylamine, dimethylethyleneglycol amine and triethylenediamine.
Preferably, the abrasive is at least one selected from diamond and cubic boron nitride.
Preferably, the auxiliary abrasive is at least one selected from silicon carbide, white corundum and garnet.
Preferably, the filler is at least one selected from chromium oxide green, polishing powder, calcium carbonate, zinc oxide, cryolite and inorganic metal salts.
The second aspect of the present invention provides a method for producing the elastic rubber grinding tool according to the first aspect of the present invention, comprising the steps of:
s1, mixing materials of a rubber grinding block, then injecting the mixture into a mould for hot press molding, and curing after demoulding to obtain the rubber grinding block;
s2: and assembling the rubber grinding block, the elastic rubber pad and the mounting clamping seat to obtain the elastic rubber grinding tool.
Preferably, the preparation method further includes a step of performing step S3 after step S2, where step S3 is: and spraying the granularity of the diamond on the elastic rubber grinding tool.
Preferably, in the hot pressing step, the hot pressing temperature is 100-135 ℃.
Preferably, in the hot pressing step, the hot pressing time is 10-60 min; further preferably, the hot pressing time is 30 to 60 minutes.
Preferably, in the hot pressing step, the hot pressing pressure is 100 to 500kN.
Preferably, in the curing step, the curing temperature is 100 to 135 ℃.
Preferably, in the curing step, the curing time is 2 to 10 hours.
A third aspect of the present invention provides the use of the elastomeric rubber abrasive article of the first aspect of the present invention in the field of workpiece polishing.
The beneficial effects of the invention are as follows: the elastic rubber grinding tool is mainly used for polishing the surface of a matte brick or soft brick, has the function of reducing the glossiness of the brick surface, ensures that the glossiness of the polished brick surface is stable and uniform, and has very fine and smooth surface and very soft luster, thereby forming a natural silk-like luster and a matte effect. In addition, the elastic rubber grinding tool has good profiling performance, is divided into a plurality of grinding surfaces, is matched with an elastic rubber pad, can correspondingly change along with the fluctuation of the surface of the glazed ceramic tile, can uniformly process a workpiece with an uneven surface, and can not generate phenomena such as shadow, grinding marks, grinding flowers and the like in the processing process due to the soft material of the grinding surface.
Drawings
Fig. 1 is a cross-sectional view of the elastic rubber grinder in example 1.
Fig. 2 is a top view of the elastic rubber abrasive in example 1.
Fig. 3 is a physical view of the elastic rubber abrasive in example 1.
FIG. 4 is a physical view showing a glazed tile polished by the fiber-grinding block and the elastic rubber grinder of example 1, respectively.
Reference numerals:
grinding the column A1; a fixing seat 2; an elastic rubber pad 3; installing a clamping seat 4; grinding the post B5 and installing the bayonet 6.
Detailed Description
Specific embodiments of the present invention will be described in further detail below with reference to the drawings and examples, but the practice and protection of the present invention are not limited thereto. It should be noted that the following processes, if not specifically described in detail, can be realized or understood by those skilled in the art with reference to the prior art. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The grinding tool used in the prior art is a fiber grinding block formed by rolling integral fiber yarns and resin feed liquid, and the fiber grinding block is adopted for polishing, so that grinding marks and grinding patterns are easily generated on the surface of a workpiece. Accordingly, the present inventors have tried to prepare an elastic rubber mold, but encountered problems such as: when the mixed slurry of the rubber grinding block is injected into the grinding tool, the complete injection is difficult to be carried out in the die cavity for preparing the grinding column A1 and the grinding column B5, so that partial grinding column A1 and grinding column B5 in the prepared elastic rubber die are incomplete, and in addition, even if the grinding column A1 and the grinding column B5 are injected into the die cavity, cavity defects exist on the surfaces or in the inner parts of the grinding column A1 and the grinding column B5 when the curing molding is carried out, and the performance of the grinding column A1 and the grinding column B5 is influenced. To solve this problem, the present inventors have tried many approaches, such as: vibration, degassing and the like, but the results are not ideal, the inventor selects a hot press curing method after multiple attempts to solve the problems, adopts the conditions of hot press temperature of 100-135 ℃, hot press time of 10-60 min and hot press pressure of 100-500 kN to perform preliminary hot press curing, slowly escapes the gas in the die cavity for preparing the grinding column A1 and the grinding column B5 under the hot press in the slow hot press process, and completely fills the die cavity under the hot press. In addition, in the research and development process, the problem of difficult demolding is also encountered, in the demolding process, the grinding column A1 and the grinding column B5 are easy to break, the inventor adopts an optimized formula and a manufacturing process to solve the problem through multiple attempts, namely, the curing of the rubber grinding block is realized through a hot-pressing step, and the strength after hot-pressing curing can meet the requirement of complete demolding by matching with the formula of the rubber grinding block. In addition, the problems of insufficient hardness of the rubber grinding block and insufficient abrasive cutting edge and grinding sharpness are also encountered in the research and development process, and the inventor optimizes and tries the formula for a plurality of times, finally adopts the formula of the rubber grinding block to prepare the rubber grinding block with higher hardness, no cutting edge of the abrasive and proper grinding sharpness, and compared with the conventional fiber grinding block, the polishing effect and the service life of the fiber grinding block are obviously improved.
Example 1
Referring to fig. 1 and 2, the elastic rubber grinding tool in this example comprises a mounting clamping seat 4, an elastic rubber mat 3 and a rubber grinding block, wherein one surface of the mounting clamping seat 4 is provided with a mounting bayonet 6, one surface of the mounting clamping seat 4 opposite to the mounting bayonet 6 is provided with a mounting groove, the mounting groove is internally provided with the elastic rubber mat 3, the thickness of the elastic rubber mat 3 is greater than the depth of the mounting groove, and the elastic rubber mat 3 is provided with an integrally formed rubber grinding block; the rubber grinding block comprises a fixed seat 2, a grinding column A1 and a grinding column B5; the fixing seat 2 is arranged on the elastic rubber cushion 3, the grinding columns A1 and the grinding columns B5 are alternately arranged on the fixing seat 2 in an array mode, the grinding columns A1 and the grinding columns B5 are alternately arranged on the fixing seat 2 in an ABAB … … mode, the grinding columns B5 can be arranged at four positions close to the upper, lower, left and right of the grinding column A1 in the array mode, the grinding columns A1 and the grinding columns B5 can be trapezoid cylinders, an included angle between the grinding columns A1 and the grinding columns B5 is alpha, alpha is 5.5 degrees, the diameter of the grinding column A1 is larger than that of the grinding column B5, the minimum diameter of the grinding column A1 is 7mm, the minimum diameter of the grinding column B5 is 5mm, and the area of a part, which is in contact with a workpiece, on the grinding column A1 is smaller than the area of a part, which is in contact with the fixing seat 2, on the grinding column A1; the area of the part of the grinding column B5 contacted with the workpiece is smaller than the area of the part of the grinding column B5 contacted with the fixed seat 2; the fixing seat 2 and the elastic rubber cushion 3 are provided with arc surfaces, the radians of the arc surfaces of the fixing seat 2 and the elastic rubber cushion are the same, and the radius of the arc surface is 156mm. A physical diagram of the elastic rubber abrasive is shown in fig. 3.
The raw materials for preparing the rubber grinding block in the example comprise the following components in parts by weight: 10 parts of diamond (JR 1 170/20), 20 parts of 320# silicon carbide, 44 parts of polyurethane, 5 parts of chromium oxide green, 10 parts of polyether glycol, 1 part of dimethyl glycol amine and 10 parts of cryolite.
The elastic rubber grinding tool in the example is prepared by adopting the following preparation method, and specifically comprises the following steps:
(1) Weighing and uniformly mixing the component materials of the rubber grinding block with the formula amount to prepare mixed slurry;
(2) Injecting the mixed slurry into a mold core, filling each cavity for manufacturing a grinding column A1 and a grinding column B5 in the mold core with the slurry, scraping the slurry uniformly, then placing the mold core into a resin grinding wheel hot press for hot press solidification, wherein the hot press temperature is 125 ℃, the hot press time is 30min, the hot press pressure is 250kN, and placing the mold core into a 120 ℃ oven for solidification for 8h after solidification and molding, so as to obtain the rubber grinding block in the example;
(3) The rubber grinding block is bonded with the elastic rubber pad 3 and the mounting clamping seat 4, and then the granularity of diamond is sprayed, so that the elastic rubber grinding tool in the example is obtained.
Performance test:
the glazed tile was polished by using the elastic rubber grinder of example 1 and a commercially available fiber grinder block (formed by rolling an integral fiber yarn and a resin liquid material), the polishing time was the same, a physical image of the glazed tile polished by using the elastic rubber grinder of example 1 is shown in fig. 4 (a), a physical image of the glazed tile polished by using the commercially available fiber grinder block is shown in fig. 4 (b), and then the gloss of different portions on the glazed tile was tested, and the gloss test method was as follows: the polished work piece was air dried, the tile surface was wiped clean with alcohol and a towel, 5×5=25 spots were tested on the wiped clean tile surface using a WGG60 gloss meter, standard version calibration photometer, and recorded, and the test results are shown in fig. 4 and table 1, respectively.
The number of superior workpieces (i.e., workpieces satisfying the qualification of glossiness, no shadow, no grinding mark, no grinding flower) after polishing 1000 glazed tiles using the elastic rubber grinder of example 1 and a commercially available fiber grinding block were separately tested, and the superior rates of the workpieces were calculated, and the specific calculation results are shown in table 1.
The elastomeric abrasive article of example 1 and a commercially available fiber abrasive block were each tested for service life and the test results are shown in table 1.
TABLE 1 results of Performance test of elastomeric rubber abrasive articles and fiber abrasive blocks
As can be seen from FIG. 4 and Table 1, the glazed tile polished by the elastic rubber grinding tool of the invention has good polishing effect, the tile surface is fine and soft, the glossiness is uniform, the specific glossiness value is 21-26 degrees, the glossiness difference value is 5 degrees, the glazed tile polished by the fiber grinding block has general polishing effect, the tile surface is fine and soft, the glossiness is uneven, the glossiness fluctuation is large, the specific glossiness value is 19-33 degrees, the glossiness difference value is 14 degrees, and the surface glossiness difference value is obviously higher than that of the glazed tile polished by the elastic rubber grinding tool of the invention, further indicates that the polished workpiece surface has more uniform glossiness and no defects such as shadows, grinding marks and the like. In addition, the elastic rubber grinding tool can be used for polishing, so that the excellent rate of a workpiece and the service life of the workpiece can be remarkably improved, wherein the service life is improved by 5-8.3 times.
In summary, the elastic rubber grinding tool is mainly used for polishing the surface of a matte brick or soft brick, has the function of reducing the glossiness of the brick surface, ensures that the glossiness of the polished brick surface is stable and uniform, and has very fine and smooth surface and very soft luster, thereby forming a natural silk-like luster and a matte effect. In addition, the elastic rubber grinding tool has good profiling performance, is divided into a plurality of grinding surfaces, is matched with an elastic rubber pad, can correspondingly change along with the fluctuation of the surface of the glazed ceramic tile, can uniformly process a workpiece with an uneven surface, and can not generate phenomena such as shadow, grinding marks, grinding flowers and the like in the processing process due to the soft material of the grinding surface.
While the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. An elastic rubber grinding tool is characterized in that: the device comprises an installation clamping seat, an elastic rubber cushion and a rubber grinding block, wherein the elastic rubber cushion is arranged on the installation clamping seat; the elastic rubber pad is provided with an integrally formed rubber grinding block; the rubber grinding block comprises a fixed seat, a grinding column A and a grinding column B; the fixed seat is arranged on the elastic rubber cushion; the grinding columns A and B are alternately arranged on the fixed seat in an array manner;
the diameter of the grinding column A is larger than that of the grinding column B.
2. The elastomeric rubber abrasive article of claim 1, wherein: the elastic rubber pad and the fixing seat are provided with arc-shaped surfaces with the radius of 130-160 mm.
3. The elastomeric rubber abrasive article of claim 1, wherein: the grinding column A and/or the grinding column B are/is in a trapezoid cylinder shape; the included angle alpha between the grinding column A and the grinding column B is 2-30 ℃.
4. The elastomeric rubber abrasive article of claim 1, wherein: the rubber grinding block comprises the following components in parts by weight: 30-70 parts of adhesive, 10-40 parts of abrasive, 5-15 parts of filler, 10-20 parts of curing agent and 0-15 parts of catalyst.
5. The elastomeric rubber abrasive article of claim 4, wherein: the rubber grinding block comprises the following components in parts by weight: 3-20 parts of diamond abrasive, 7-20 parts of auxiliary abrasive, 30-70 parts of adhesive, 5-15 parts of filler, 0-15 parts of catalyst and 10-20 parts of curing agent.
6. The elastomeric rubber abrasive according to claim 4 or 5, wherein: the adhesive is at least one selected from polyamide, epoxy resin and polyurethane;
and/or the curing agent is at least one selected from the group consisting of poly fatty acid, poly fatty amine, polyol, phthalic anhydride;
and/or the catalyst is selected from at least one of N, N-dimethylcyclohexylamine, dimethylethyleneglycol amine and triethylenediamine;
and/or the abrasive is selected from at least one of diamond and cubic boron nitride;
and/or the auxiliary abrasive is at least one of silicon carbide, white corundum and garnet;
and/or the filler is at least one selected from chromium oxide green, polishing powder, calcium carbonate, zinc oxide, cryolite and inorganic metal salt.
7. The method for producing an elastic rubber abrasive according to any one of claims 4 to 6, characterized in that: the method comprises the following steps:
s1, mixing materials of a rubber grinding block, then injecting the mixture into a mould for hot press molding, and curing after demoulding to obtain the rubber grinding block;
s2: and assembling the rubber grinding block, the elastic rubber pad and the mounting clamping seat to obtain the elastic rubber grinding tool.
8. The method of making an elastomeric rubber abrasive article according to claim 7, wherein: in the hot pressing step, the hot pressing temperature is 100-135 ℃ and the hot pressing time is 10-60 min; the hot pressing pressure is 100-500 kN.
9. The method of making an elastomeric rubber abrasive article according to claim 7, wherein: in the curing step, the curing temperature is 100-135 ℃ and the curing time is 2-10 h.
10. Use of the elastic rubber abrasive according to any one of claims 1 to 6 in the field of workpiece polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261719.6A CN117207083A (en) | 2023-09-26 | 2023-09-26 | Elastic rubber grinding tool and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261719.6A CN117207083A (en) | 2023-09-26 | 2023-09-26 | Elastic rubber grinding tool and preparation method and application thereof |
Publications (1)
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|---|---|
| CN117207083A true CN117207083A (en) | 2023-12-12 |
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| CN202311261719.6A Pending CN117207083A (en) | 2023-09-26 | 2023-09-26 | Elastic rubber grinding tool and preparation method and application thereof |
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