TW201345659A - A method of polishing the edges of glass - Google Patents

Abstract

The present invention disclosed a method of polishing the edges of glass. The method comprises the steps of: providing a plurality of spacer to set among a plurality of glass as the interval among the plurality of glass as well as to fix the relative position of among the plurality of glass; providing a first clamping force to make a first clamping unit connect a outermost spacer of the plurality of spacer; providing a second clamping force to make a second clamping unit connect another outermost spacer of the plurality of spacer; and providing a wheel of tool for polishing the plurality of glass. The disclosed method can polish more than one glass at the same time, and has the advantages of reducing the manufacturing cost, improving the quality of product, extending the lifetime of the equipment and improving the working environment by using.

Description

Glass edge polishing method

The present invention relates to a polishing method, and more particularly to a method for polishing a glass edge, by which a plurality of glass sheets can be polished at a time to reduce manufacturing cost, improve product quality, extend equipment life, and improve The effectiveness of the labor environment.

Press, generally used for round or irregularly shaped glass work, in order to prevent the sharp edges of the cut will cause the phenomenon of cuts, usually after the completion of the cutting, it is necessary to use a manual grinding tool to grind the surrounding, It is relatively smooth and flat, so that it can be used without any injury, and it can also achieve the appearance of beauty. However, the conventional method of grinding the periphery of the glass plate by manual operation, but the accuracy of the size is difficult to grasp, and the manual grinding operation speed is slow, the operation is not convenient enough, and the cost of the production is increased invisibly. Therefore, how to provide a glass polishing device to improve the quality of the glass and reduce the total cost of production will be an important factor for the glass to expand its commercial value.

Referring to Taiwan Patent Publication No. 410189, a glass polishing method is disclosed in which a glass plate held by a carrier plate is used to set and pressurize a polishing machine. The machine has two pressure plates in the upper and lower positions, and the surface of the pressure plate is adhered. There are a plurality of shot-type grinding stones, and a water-soluble slurry containing fine particles of cerium oxide and a diamond grinding stone containing fine particles of diamond are supplied. This polishing method achieves a very high polishing rate while maintaining accurate surface roughness. However, the abrasive slurries and grindstones used in this patent are expensive and not cost effective.

Referring to Chinese Patent Publication No. 87101316, it is disclosed that a glass polishing method utilizes titanium dioxide as a polishing powder to polish a glass in a conventional manner, thereby achieving the effect of simple stone grinding technology and low cost. However, this patent uses titanium dioxide prepared by sulfuric acid or chlorination, which is gradually lacking in source, and therefore does not meet the environmental issues advocated today.

Referring to Chinese Patent Publication No. 20820109191.5, it discloses a quartz glass polishing machine which utilizes a spindle on a tool holder, a front end of which is provided with a polishing wheel, and the glass is polished through the mutual movement between the main shaft and the polishing wheel to achieve automation. The effect of polishing glass. Reference is now made to Fig. 1, which is a schematic view of a quartz glass polishing machine disclosed in the prior art Chinese Patent Publication No. 20820109191.5. The polishing machine 10 mainly comprises: a glass 11; a polishing wheel 12; a spindle 13; and a tool holder 14, the device mainly adopting the spindle 13 on the tool holder 14, the front end of the spindle 13 is mounted With the polishing wheel 12, the glass 11 is polished through the mutual movement between the main shaft 13 and the polishing wheel 12 to achieve the effect of automatically polishing the glass. However, the patented quartz glass polishing machine can only polish one piece of glass one by one, which is inconsistent with the needs of mass production in the commercial world.

The job is the reason, the applicant is careful testing and research, and a perseverance spirit, finally developed a method of glass edge polishing, which can solve the above problems.

The main object of the present invention is to provide a method for polishing the edge of the glass, which is to improve the traditional single-glass single-glass missing, so as to reduce the manufacturing cost, improve the product quality, extend the service life of the device, and improve the working environment.

In order to achieve the main object of the present invention, the present invention provides a method for polishing a glass edge, the method comprising: providing a plurality of glass sheets; providing a plurality of spacer sheets disposed between the glass sheets as an interval between the glass sheets And fixing the relative positions of the glass sheets; providing a first clamping force to connect a first clamping spindle to one of the outermost spacers; and providing a second clamping force Two clamping spindles are coupled to the other outermost spacer of the spacers; and a cutter runner is provided for polishing the glass sheets.

According to a feature of the invention, the machining amount of the cutter wheel (i.e., the depth of machining) is at least 0.01 nm and the maximum is adjustable to 10 cm.

The method for polishing a glass edge of the present invention has the following effects:

1. By the method of polishing the edge of the glass of the invention, a large amount of glass polishing processing can be performed at one time, thereby improving the working environment and improving the quality of the product;

2. The method for polishing the edge of the glass of the invention has low cost, and the method can also achieve the effect of prolonging the service life of the device;

3. The method of polishing the edge of the glass of the present invention can be processed into a glass sheet of any shape to exhibit high convenience.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

The present invention may be embodied in various forms, and the embodiments shown in the drawings are intended to be a preferred embodiment of the present invention, and it is understood that the subject matter disclosed herein is an example of the invention. It is not intended to limit the invention to the particular embodiments illustrated and/or described.

Referring now to FIG. 2, there is shown a schematic view of an embodiment of a glass edge polishing apparatus 20 of the present invention, which mainly comprises: a plurality of glass sheets 21; a plurality of spacers 22; a first clamping spindle 23; The spindle 24 and a cutter wheel 25 are clamped. Among them, the glass sheets 21 are not members of the glass edge polishing device 20, and play the role of being polished in the prior art, so glass of different materials must be selected according to different needs. Preferably, since the flat glass is easy to process, the cost is low, and it is easy to obtain, the flat glass is used in the present invention. In addition, the shape of the glass sheets 21 may be any shape, such as one of a triangle, a quadrangle, a pentagon, a hexagon, and an irregular shape. In a preferred embodiment, the shape is selected from a circular shape. The plurality of glass sheets 21 of the invention.

The plurality of spacers 22 serve as a space between each of the plurality of glass sheets 21 and the sheets, and fix the relative positions of the glass sheets 21. The first clamping spindle 23 is coupled to one of the outermost spacers of the spacers 22 by a first clamping force. The second clamping spindle 24 is disposed on a side opposite to the first clamping spindle 23 by a second clamping force and is coupled to the other outermost spacer of the spacers 22. The cutter wheel 25 has a surface that is in contact with the edges of the glass sheets for polishing the glass sheets 21.

Please continue to refer to Figure 2 and refer to Figure 3. 3 is a schematic view of a method 30 for polishing a glass edge according to the present invention, comprising the steps of: step 31: providing a plurality of glass sheets 21; and step 32: providing a plurality of spacers 22 disposed between the glass sheets 21 As the spacing between the glass sheets 21, and fixing the relative positions of the glass sheets 21; Step 33: providing a first clamping force to connect a first clamping spindle 23 to the spacers 22 An outermost spacer; step 34: providing a second clamping force to connect a second clamping spindle 24 to the other outermost spacer of the spacers 22; and step 35: providing a cutter runner 25 The surface of the cutter wheel is in contact with the edges of the glass sheets for polishing the glass sheets 21.

The spacers 22 are disposed between the glass sheets 21 as a space between the glass sheets 21 and fix the relative positions of the glass sheets 21. The shape of the spacers 22 may be any shape, such as one of a triangle, a quadrangle, a pentagon, a hexagon, and an irregular shape, but it should be noted that the spacers 22 have outer contours. It is smaller than the outer contour of the glass sheets 21. The spacers 22 are selected from one of a rubber suction cup, an aluminum alloy suction cup and a silicone suction cup. Preferably, since the aluminum alloy suction cup has the advantages of corrosion resistance, high temperature resistance and good strength, the present invention uses the material as a comparison. A good example. Among them, aluminum alloy is an alloy made of copper, zinc, manganese, bismuth, magnesium, etc., generally divided into: aluminum manganese alloy, aluminum bismuth alloy, aluminum magnesium alloy, aluminum magnesium copper alloy, aluminum magnesium bismuth alloy, aluminum magnesium Zinc alloys, etc., are lighter, more corrosion-resistant, and easier to process than ordinary carbon steels. Therefore, they are also commonly used in industrial products, building doors and windows, and electronic equipment components. It is worth noting that the spacing between the spacers ranges from 0.2 cm to 5 cm. In another embodiment, the spacers 22 are viscous, and the outer contours of the spacers 22 are smaller than the outer contours of the glass sheets. Therefore, the spacers 22 are provided with a vacuum clamp. A soft sucker with the ability to hold.

The first clamping spindle 23 is connected to one of the outermost spacers of the spacers 22; the second clamping spindle 24 is disposed on the opposite side of the first clamping spindle 23 and is connected to the spacers The other outermost spacer of 22; the clamping force of the first clamping spindle 23 and the second clamping spindle 24 is mainly adjusted according to the number of the glass sheets 21 clamped to maintain the glass from cracking. In the processed state, the clamping force is about 20 to 500 Newtons. Therefore, the first clamping spindle 23 and the second clamping spindle 24 must be a material of high strength and wear resistance. Preferably, the present invention utilizes this material as a preferred embodiment because of its high strength and corrosion resistance. Stainless steels commonly used in engineering vehicles or fixtures are classified into: 304 stainless steel, 310 stainless steel, 316 stainless steel, and 317 stainless steel. In a preferred embodiment of the present invention, 304 stainless steel has better high temperature oxidation resistance. The advantages of acid corrosion resistance and high strength are 304 stainless steel as the material of the first clamping spindle 23 and the second clamping spindle 24 of the present invention.

In the present invention, the cutter wheel 25 serves as a tool for abrading the glass for polishing the glass sheets. Therefore, a material that is harder than glass is required. Generally, a tungsten steel knife, a diamond knife, and an acrylic knife are generally used as the polishing tool material. Preferably, the tungsten steel knife has good hardness, wear resistance and high temperature corrosion resistance. As an advantage, a tungsten steel knife is selected as the tool runner 25 of the present invention. Further, in another embodiment, the cutter wheel 25 is selected from a repetitive polishing material that is rotated at a high speed by a fixed number of grinding wheels or a resorbable abrasive, and is shaped like a cylinder.

In another embodiment, the cutter wheel 25 is selected from one of a high speed rotating grinding wheel and a polishing material that can absorb abrasive. Preferably, the cutter wheel 25 is selected from a fixed number of high speed rotating grinding wheels. Among them, the grinding wheel is a cutting tool which is formed by pressing, forming and sintering a plurality of polygonal abrasive grains and a binder, and using the fine brittle abrasive grains as cutting edges. Grinding wheels commonly used in industry can be divided into two categories: conventional types such as alumina or tantalum carbide; and non-traditional types such as diamond or cubic boron nitride. The former applies to general metal materials or tool materials; the latter is dedicated to difficult-to-cut materials such as ceramic metals, knives or glass. Since the grinding wheel is one of the tools of the sharpening tool, each abrasive grain on the wheel surface is a very hard, brittle and temperature-resistant small ore. When grinding, each sharp and small ore particle will The cutting speed of nearly 10 kilometers per hour passes through the surface of the workpiece, and wear debris occurs during processing. The grinding debris includes fine chips of the workpiece and abrasives that fall off due to passivation. It should be noted that the diameter of the grinding wheel is generally 6", 8", 10", 12" and 14", and the size of the grinding wheel needs to match the size of the glass pieces 21. In addition, the rotation speed of the tool wheel 25 It is approximately 100 to 3500 rpm, and the amount of machining (i.e., the depth of machining) is adjusted via the cutter wheel 25, with a minimum of 0.01 nm and a maximum adjustable range of 10 cm.

The cutter wheel 25 is a soft or flexible machining wheel and uses a wet process with polishing droplets to simultaneously polish the edges of the glass sheets. The cutter wheel 25 can also perform dry processing of deep feed retardation polishing or wet processing including electrolytic polishing, chemical mechanical polishing and hydraulic dynamic polishing. among them

Deep-feeding and polishing:

Deep-feeding is not the same as general surface grinding. The Depth of cut is increased several times to tens of times, and the feed rate is slowed down by the same multiple. Grinding technology for cutting rate and increasing the thickness of the working surface.

Electrolytic polishing:

Electropolishing, that is, placing the workpiece on the anode, energizing the electrolyte, and causing the workpiece to undergo an electrolytic reaction (also known as reverse plating) under appropriate operating parameters, and the surface of the workpiece is dissolved by the electric field concentration effect, thereby achieving the workpiece. Processing technology for flat surface and gloss.

Chemical mechanical polishing:

Chemical mechanical polishing is a polishing technique that uses a relative motion to press a workpiece onto a rotating elastic pad (polishing pad). The corrosive working fluid is supplied to the workpiece, and when the workpiece is subjected to corrosion processing (chemical), the ultra-abrasive particles (10 nm or less in diameter) are supplied to the polishing (mechanical) material to select the convex portion of the workpiece. Sexual polishing operation, so called mechanical (mechanical) chemical polishing or chemical mechanical polishing.

In a preferred embodiment, the cutter wheel 25 is a dry process. It not only removes the surface deterioration layer and residual stress generated by the polishing process, but also prevents grain fragments and warpage, reduces grain warpage, increases the flexural strength of the grain, improves the yield, and at the same time reduces the environment. Pollution.

In addition, the cutter wheel 25 can also select a repetitive polishing material that can absorb the abrasive, such as rubber. If rubber is used as the cutter roller 25, it can be polished by hydrodynamic polishing. This processing method has the characteristics of micro processing, predictable processing rate and high reproducibility. The hydrodynamic polishing method is a method in which the material to be polished is placed in a refining slurry to control a stable load between the high-speed rotating hemispherical rubber cutter and the surface of the workpiece. When the tool is processed close to the workpiece, a hydrodynamic lubrication effect is generated between the two due to the wedge effect, so that a refining film is formed between the tool and the workpiece. Since the abrasive grains can stably flow through the surface of the workpiece when the refining is driven into the processing zone by the high-speed rotation of the cutter, the film is a laminar flow structure. In this processing zone, the abrasive grains are subjected to the shear stress of the refining to produce sliding and rolling, and the machining behavior is generated on the surface of the workpiece. Since the driving force of the dominant abrasive movement pattern is the flow field shear stress, the processing ability of the abrasive grains can be controlled by grasping the action of the flow field shear stress. Therefore, when discussing the hydrodynamic polishing rate, it should be noted that the processing capacity of the abrasive grains is positively related to the flow field shear stress, which is related to the lubrication conditions of the processing zone. Moreover, in order to effectively remove the surface material of the workpiece when the tool is not directly pressed against the abrasive grain, the abrasive particles must withstand sufficient stress. And the hydraulic dynamic polishing method is based on the theory of elastic fluid lubrication, and establishes a set of processing theory to explain and predict the processing ability. Through this processing theory, the processing parameters of the hydrodynamic polishing method are controlled, the abrasive grain density per unit area and the processing rate of the abrasive grains are grasped, and the removal amount of the material is accurately estimated to achieve the purpose of high reproducibility processing. It is worth noting that the speed of the cutter wheel 25 using rubber is about 100 to 3500 rpm, and the machining amount (that is, the depth of machining) is adjusted by the cutter wheel 25, and the minimum is 0.01 nm. Adjust to a range of 10 cm.

The method for polishing the edge of the glass of the present invention is applied to the glass sheets 21 and the spacers 22 by a clamping force by a clamping force, thereby driving the glass sheets 21 in a slow rotation manner. The cutter wheel 25 is in surface contact and is further polished.

Referring now to Figure 4, there is shown the movement of a glazed edge polishing apparatus of the present invention. The movement of the first clamping spindle 23 and the second clamping spindle 24 (shown by the first clamping spindle) is a slow rotation around a center point, and the rotation can be counterclockwise or clockwise, and the rotation speed can be Adopt constant speed or variable speed. It should be noted that, if the glass piece is non-circular, the first clamping spindle 23 and the second clamping spindle 24 can be rotated by a cam mechanism or other digital actuators to keep the contact point in contact with the surface of the tool runner 25. Rotational motion. In a preferred embodiment, the clamping spindle employs a cam mechanism (not shown). Wherein, the cam mechanism is a conjugate cam mechanism composed of two plate cams and a driven plate with a uniform layer of rollers. The main technical feature is the use of cam continuous grinding technology, that is, two cams are made into one whole, and the cam is continuously ground by a program during numerical control grinding, which avoids secondary positioning error and improves the positioning accuracy of the cam.

In addition, in order to facilitate assembly and clearance adjustment, a box biasing structure and a camshaft eccentric support structure are employed. The conjugate cam has an indexing accuracy of up to 15", a maximum input speed of 1000 rpm, a service life of about 3,500 hours, a thermal effect of 30 ° C, and an operating torque of 1500 Nm. Among them, the first clamping spindle 23 and the first described in the present invention The manner of the rotation of the two clamping spindles 24 may be selected from a counterclockwise direction or a clockwise direction, and the rotation speed may also be constant speed or variable speed.

Moreover, the rotary shaft 26 of the cutter wheel can be driven by a fixed, cam mechanism or other digital actuator for simultaneous rotation and swing to ensure contact with the glass processing edge. The rotation mode may be selected from a counterclockwise direction or a clockwise direction, and the rotation speed thereof may be constant speed or variable speed. In addition, the rate of movement of all of the rotating and oscillating mechanisms can be adjusted to achieve simultaneous polishing of the edges of the plurality of glass sheets 21.

A glass edge polishing device as described above is required to cooperate with the cutter wheel 25. However, in yet another embodiment, the tool runner 25 is omitted and an abrasive jet machining process is employed. The principle of this method is that the hard and sharp-angled abrasive generates the kinetic energy of the abrasive by the force of the high-pressure gas, and the abrasive particles are subjected to strong pressure to accelerate the impact on the surface of the workpiece, and the surface of the workpiece is subjected to high-pressure stress at the impact point. A plastic strain zone is formed around the plastic zone, and the material of the plastic zone is pressed by the abrasive particles to form a tension zone around the plastic zone. The brittle material of the tension zone can not be squeezed from the plastic zone to cause cracks, and the crack is generated. It can be divided into two types: lateral crack and radial/median crack. The transverse crack under the plastic zone extends to the surface of the workpiece until the debris falls off. The radial cracks continue to extend downward into the interior of the workpiece, weakening the strength of the workpiece material. Since the processing method of the abrasive jet processing method is not in direct contact with the workpiece, there is no problem of chattering and vibration in the process, and the high pressure gas has a cooling effect in addition to the kinetic energy of the fine abrasive, which can change the surface smoothness and stress state of the workpiece. It can be applied to the processing of multiple workpieces.

<Example 1>

First, six circular-shaped flat glass sheets having a thickness of 3 cm and a diameter of 50 cm were prepared. Then, a plurality of aluminum alloy spacers having a thickness of 2 cm and a diameter of 30 cm were prepared by stamping, and the spacers were spaced apart by about 5 cm, and then the circular flat glass and the aluminum alloy spacer were interlaced and vacuum-bonded. In addition, two 304 stainless steel clamping spindles having a thickness of about 5 cm and a diameter of about 10 cm were prepared by the above method, and the bonded flat glass was joined to both ends of the aluminum alloy adhesive spacer; A tungsten steel polishing tool having a length of about 400 cm and a thickness of about 10 cm is placed under the above apparatus. Finally, a clamping force of 260 Newton is applied to the plurality of glass and spacers by the clamping spindle to rotate the counterclockwise needle in a slow speed, and the plurality of glass sheets are brought into contact with the surface of the polishing tool to be polished. Effect. Among them, the polished glass has a reflectance of about 8%, a transmittance of about 85%, and an efficiency improvement of about 75% compared with the polishing of a single-piece circular flat plate glass.

<Example 2>

Embodiment 2 is substantially the same as the step of Embodiment 1, please refer to FIG. 3, the main difference is: a plurality of pieces of glass are changed to a rectangular plate glass having a thickness of 3 cm, a length of 70 cm and a width of 50 cm; the spacing of the spacers is changed to 3 Dimensions; polishing tools are changed to diamond knives. Finally, a clamping force of 250 Newtons is applied to the plurality of glass and spacers by the clamping spindle to rotate the counterclockwise needle in a slow speed, and the plurality of glass sheets are brought into contact with the surface of the polishing tool to be polished. Effect. Among them, the prepared glass polishing equipment can process 10 sheets of flat glass at a time, and the polished glass has a reflectance of about 10%, a transmittance of about 86%, and an improved efficiency of 10 times of single-piece rectangular flat glass. About 80%.

In summary, the method of polishing a glass edge of the present invention has the following effects:

1. By the method of polishing the edge of the glass of the invention, a large amount of glass polishing processing can be performed at one time, thereby improving the working environment and improving the quality of the product;

2. The method for polishing the edge of the glass of the invention has low cost, and the method can also achieve the effect of prolonging the service life of the device;

3. The method of polishing the edge of the glass of the present invention can be processed into a glass sheet of any shape to exhibit high convenience.

While the present invention has been described in its preferred embodiments, it is not intended to limit the scope of the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. As explained above, various modifications and variations can be made without departing from the spirit of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10. . . Schematic of prior art

11. . . glass

12. . . Polishing wheel

13. . . Spindle

14. . . Walking holder

20. . . Schematic diagram of glass edge polishing device

twenty one. . . Multiple pieces of glass

twenty two. . . Multiple spacers

twenty three. . . First clamping spindle

twenty four. . . Second clamping spindle

25. . . Tool runner

26. . . Rotary shaft of the tool runner

30. . . Flow chart of preparation method of glass edge polishing

Figure 1 is a schematic view showing the prior art of the present invention;

2 is a schematic structural view of a glass edge polishing apparatus of the present invention;

Figure 3 is a flow chart showing a method of polishing the edge of the glass of the present invention;

Figure 4 is a schematic view showing the movement mode of the method for polishing the edge of the glass of the present invention.

30. . . Flow chart of glass edge polishing method

Claims (12)

A method for polishing a glass edge, the method comprising the steps of: (a) providing a plurality of glass sheets; (b) providing a plurality of spacer sheets disposed between the glass sheets as a space between the glass sheets and fixing the portions a relative position of the glass piece; (c) providing a first clamping force to connect a first clamping spindle to one of the outermost spacers of the spacer; (d) providing a second clamping force a second clamping spindle coupled to the other outermost spacer of the spacers; and (e) a tool runner having a surface in contact with the edges of the glass sheets for The glass sheets are polished; wherein the tool wheel has a processing volume of at least 0.01 nm and a maximum of 10 cm. The method of polishing a glass edge according to claim 1, wherein the shape of the plurality of glass sheets of the step (a) is selected from one of a trigonometry, a quadrangle, a pentagon, a hexagon, and an irregular shape. The method of polishing a glass edge according to claim 1, wherein the spacers of the step (b) are selected from one of a trigonometry, a quadrangle, a pentagon, a hexagon, and an irregular shape. The method for polishing a glass edge according to claim 1, wherein the spacers of the step (b) are viscous, and the outer contours of the spacers are smaller than the outer contours of the glass sheets. The method of polishing a glass edge according to claim 1, wherein the rotation of the first clamping main axis and the second clamping main axis of the steps (c) and (d) may be selected from a counterclockwise direction or a clockwise direction. One of them, and its rotational speed can be selected from one of constant speed or variable speed. The method for polishing a glass edge according to claim 1, wherein the tool runner of the step (e) is a high-speed rotating grinding wheel, and the material thereof is selected from the group consisting of alumina, tantalum carbide, diamond and cubic boron nitride. one. The method of polishing a glass edge according to claim 1, wherein the tool wheel of the step (e) is a cylinder, and the rotation speed of the tool wheel is between 100 and 3500 rpm. The method for polishing a glass edge according to claim 1, wherein the rotating shaft of the cutter wheel of the step (e) can be driven by a fixed, cam mechanism or a digital driver to perform simultaneous rotation and swing to ensure the glass and the glass. The machined edges maintain contact. The method of polishing a glass edge according to claim 1, wherein the rotation of the cutter wheel of the step (e) is selected from one of a counterclockwise direction and a clockwise direction, and the rotation speed is selected from a constant speed or a variable speed. one. The method of polishing a glass edge according to claim 8, wherein the speed of the rotation and the swing of the cutter wheel of the step (e) can be adjusted to achieve simultaneous polishing of the edges of the glass sheets. The method of polishing a glass edge according to claim 1, wherein the cutter wheel of the step (e) uses a deep processing of deep-feeding polishing to simultaneously polish the edges of the glass sheets. The method of polishing a glass edge according to claim 1, wherein the cutter wheel of the step (e) is a soft or flexible processing wheel, and a wet processing including polishing droplets is used to the glass sheets. The edges are polished simultaneously.