JP2015093827A - Cutting dust collector and cutting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting dust collector capable of cutting a thin glass substrate, and not generating dispersion of glass cullet, and to provide a cutting method.SOLUTION: A glass substrate cutting dust collector includes a cutter 3 and a dust collector 5. The dust collector 5 has a plurality of dust collection pipes 51-54 provided on the periphery of a cutting wheel 33, and each dust collection pipe 51-54 has a dust collection port A on one end and a gas source port 55 on the other end. When cutting a glass substrate 2, cullet generated by cutting is sucked through the collection port A by a negative pressure provided from the gas source port 55.

Description

  The present invention relates to a cutting dust collecting apparatus and a cutting method, and more particularly to a cutting dust collecting apparatus and a cutting method capable of cutting a thin glass substrate and causing no glass cullet scattering.

  The glass substrate is a very important component in the OLED display, and it is necessary to form a TFT control circuit and an organic light emitting layer on the glass substrate.

  1A to 1C are schematic views showing a flow when mechanical cutting is performed on a glass substrate, and FIG. 1D is a schematic cross-sectional view of cutting the glass substrate with a cutting wheel. Here, the glass substrate 100 is an assembled glass substrate, and the glass substrate 100 is provided with a plurality of cutting marks 104 as shown in FIG. 1A.

  As shown in FIG. 1B, the glass substrate 100 is cut to form a plurality of display panels 110. As shown in FIG. 1D, the cutting process is performed by cutting the surface 102 of the glass substrate 100 using a cutting wheel 130. In this case, the cutting wheel 130 follows the cutting mark 104 shown in FIG. 1A. Then, the glass substrate 100 is cut.

  However, according to the conventional cutting machine stand, the cullet is scattered when the glass is cut, and the cullet is attached to the surface of the cut object, which affects the cleanliness of the surface of the cut object. By causing a defect, a fracture surface (burr) is likely to occur at the edge portion of the obtained display panel 110, and further, the processing accuracy and the yield of subsequent processes are affected.

  As a method for solving the above-mentioned problem, a cullet generated when cutting a glass by applying a protective photoresist on the glass in advance and performing a baking treatment before cutting the glass. (Cullet) is prevented from adhering to the glass surface. If the cullet cannot be removed by cleaning, a defect will occur. However, according to the said method, it is necessary to perform the washing process for removing a photoresist with respect to the glass which finished the cutting process, and the time required for manufacture will become long. In addition, the application of the protective photoresist and the improvement of the cutting machine stand result in an increase in manufacturing cost.

  Since the above-mentioned problem exists in mechanical cutting, in the prior art, a cutting method using laser light may be employed to cut a glass substrate (sheet) into small glass panels. Currently, the usual laser beam cutting method includes two cutting methods, a full cut and a scribe and break.

  FIG. 2 is a schematic diagram showing a cutting method using laser light in the prior art. According to the conventional laser cutting method, an initial crack 150 is first formed on the edge of the glass substrate 100, and then the laser beam 162 emitted from the laser beam generator 160 is converted into an initial crack 150. The surface of the glass substrate 100 is heated while moving along the direction of, and the cooling device 170 immediately moves after the laser beam 162.

  When the glass substrate 100 is heated by the laser beam 162, a compressive stress is generated in the glass substrate 100, and when the glass substrate 100 is subsequently cooled by the cooling device 170, the glass substrate 100 is pulled into the glass substrate 100. Since a tensile stress is generated, the initial crack 150 grows along the moving direction of the laser beam 162 and the cooling device 170 under the action of the two stresses, and in the process of scribe and break, scribing is performed. A crack 140 having a scribing depth is formed.

  However, as the thickness of the glass substrate is reduced, an unstable full cut appears at the same time as the scribe break when the laser beam is cut by the scribe break method. When the full-cut phenomenon occurs in the first stage of scribe / break, the crack formed in the subsequent laser beam machining process cannot straddle the full-cut section, resulting in failure of scribe break.

  The present invention has been made to overcome the drawbacks of the prior art as described above, and it is a main object of the present invention to provide a cutting dust collector capable of cutting a thin glass substrate and free from scattering of glass cullet.

  Moreover, an object of this invention is to provide the cutting method which has the more outstanding use effect.

  The cutting dust collecting apparatus according to the present invention includes a cutting machine and a dust collecting apparatus, the dust collecting apparatus includes a plurality of dust collecting pipes provided on an outer periphery of the cutting machine, and one end of each dust collecting pipe is collected. A dust port, the other end is a gas source port, the dust collection port of the dust collection tube is positioned around the bottom of the cutting machine, and when the glass is cut, the dust collection tube is the dust collection port Thus, the cullet generated with the cutting is sucked.

In one embodiment, each dust collection tube shares one gas source port.
In one embodiment, the dust collection pipe includes a front dust collection pipe, a rear dust collection pipe, a left dust collection pipe, and a right dust collection pipe provided around the cutting wheel.

  In one embodiment, the cutting machine includes a cross beam, a holder and a cutting wheel, the cross beam is movable by an external drive, and the holder is fixedly connected in parallel and spaced below the cross beam. There are two holders, and the cutting wheel is rotatably installed on the lower side of the holder.

  In one embodiment, the dust collection port of the dust collection tube is positioned above the glass substrate to be cut, and the end of the dust collection tube is inclined with respect to the glass substrate.

  In one embodiment, the inclination of the end portions of the front dust collection tube and the rear dust collection tube is 45 degrees.

  In one embodiment, the inclination of the end portions of the left dust collection tube and the right dust collection tube is 35 degrees.

Further, the present invention includes a cutting machine and a dust collecting device, the dust collecting device includes a plurality of dust collecting pipes provided on the outer periphery of the cutting machine, one end of each dust collecting pipe is a dust collecting port, The other end is a gas source port, and the dust collection port of the dust collection pipe is a cutting method performed by a cutting dust collecting device positioned around the bottom of the cutting machine,
The dust collector and the cutting machine are driven synchronously to move away from the fixed stage of the glass substrate;
A step (2) of transporting the glass substrate to a fixed stage and fixing the glass substrate with the fixed stage;
When the cutting dust collector is driven to approach the glass substrate and moved to the cutting start position, the dust collector and the cutting machine are all operated, and the fixed stage or the cutting dust collector is driven to a predetermined level. Performing a cutting operation along a path, and the dust collector synchronously collects dust (3);
When the cutting operation is completed, the dust collector and the cutting machine are driven synchronously to provide a cutting method including the step (4) of moving away from the glass substrate and the fixed stage.

  According to one embodiment, in the cutting operation of the present invention, the fixed stage and the glass substrate are positioned above, and the cutting machine and the dust collector are positioned below. This prevents the granules from adhering to the surface of the glass substrate under the action of gravity. And the dynamic granule produced | generated with the cutting | disconnection operation | work by a cutting wheel will move toward a dust collection opening | mouth under gravity. At the same time, it is possible to reduce the cleaning work of the fixing stage of the glass substrate.

  According to one embodiment, after the step (2) and before the step (3), a dust collection pretreatment step is further included, in which the dust collector and the cutting machine are driven synchronously so that the glass substrate Close to one side but does not reach the distance that can be cut, then start the dust collector and drive the stationary stage or the cutting dust collector and cutting machine once for the surface of the glass substrate Perform full-scan dust collection to remove any foreign matter that may be attached.

  According to one embodiment, during operation, the negative pressure provided from the gas source port of the dust collector is an irregular pulse from high pressure to very high pressure. This not only has an excellent dust collection effect, but also prevents blockage of each dust collection tube. Moreover, the uniformity of the negative pressure state of the dust collection tube can be ensured.

  Compared with the prior art, the present invention has the following beneficial technical effects. That is, the cutting dust collector is suitable for cutting a thinner glass substrate, and when cutting a glass with a mechanical cutting machine, the dust collecting tube can suck the cullet generated along with the cutting by the dust collecting port. it can. By providing one dust collecting tube on each of the front, rear, left and right of the cutting wheel, the cullet and particulate generated when cutting the glass can be completely sucked and removed. It is possible to more effectively prevent the glass substrate pattern from falling and damaging the glass substrate pattern, thereby achieving the purpose of protecting the glass substrate pattern. Furthermore, it avoids contamination of the glass surface leading to product defects.

It is a schematic diagram of the glass substrate before the cutting | disconnection in the 1st cutting method of a prior art. It is a schematic diagram of the glass substrate after the cutting | disconnection in the 1st cutting method of a prior art. It is an operation schematic diagram after cut | disconnecting the glass substrate in the 1st cutting method of a prior art. It is a side surface schematic diagram which shows the cutting | disconnection operation | work of the glass substrate in the 1st cutting method of a prior art. It is a structure schematic diagram of the cutting operation apparatus in the 2nd cutting method of a prior art. It is a side view showing a schematic structure of a cutting dust collecting device in an embodiment of the present invention. It is an exploded view which shows schematic structure of the cutting dust collector in the Example of this invention. It is a schematic diagram which shows the attachment or detachment operation | movement of the cutting wheel of the cutting machine which concerns on this invention.

  Hereinafter, embodiments in which the features and advantages of the present invention can be realized will be described in detail. However, it is obvious that various modifications can be made to different embodiments of the present invention without departing from the gist of the present invention. In addition, the description and drawings described herein are merely for the purpose of illustrating the present invention and are not intended to limit the present invention.

  As shown in FIGS. 3 and 4, the present invention provides a cutting dust collecting device including a cutting machine 3 and a dust collecting device 5 attached to the cutting machine 3. The cutting machine 3 includes a cross beam 31, a holder 32, and a cutting wheel 33. The cross beam 31 is a main fixed frame of the cutting machine 3, and a power device may be attached to the cross beam 31 or may be moved by an external drive. The holder 32 may be two rectangular plates, or may be another shape holder. In this embodiment, an inverted triangular holder is employed to provide an optimal stress effect under the precondition of saving material and space. The two holders 32 are fixedly connected below the cross beam 31 in a state of being separated in parallel. The cutting wheel 33 is rotatably provided on the lower side of the center between the two holders 32 by one shaft. The cutting wheel 33 is rotated by the driving of the power unit fixed to the cross beam 31 or the holder 32, thereby completing the cutting operation. The power part is not the main point of the present invention and will not be described in detail here. The cutting machine 3 cuts the glass substrate 2 at the bottom of the cutting wheel 33.

  As shown in FIGS. 3 and 4, the dust collector 5 of the present invention includes a plurality of dust collection tubes (a front dust collection tube 51, a rear dust collection tube 52, a left dust collection tube 53, and a right dust collection tube 54. ). The dust collection tube is located on the outer periphery of the cutting wheel 33 of the cutting machine 3. Specifically, the number of dust collecting tubes may be four or more. In the present embodiment, the dust collection pipe includes a front dust collection pipe 51, a rear dust collection pipe 52, a left dust collection pipe 53, and a right dust collection pipe 54 that are positioned around the cutting wheel. More dust collection tubes can be provided as needed.

  As shown in FIGS. 3 and 4, one end of each dust collection tube is a dust collection port A, and the other end is a gas source port 55. Each dust collection pipe is connected to one gas source port 55 in common, which is convenient for synchronous control, reduces the cost of split control, and ensures uniform negative pressure in each dust collection pipe Can do.

  As shown in FIG. 4, a plurality of connection ports 57 are provided around the gas source port 55, and at the same time, the front dust collection pipe 51, the rear dust collection pipe 52, the left dust collection pipe 53, and the right dust collection pipe. The pipe 54 is also provided with a corresponding joint 56, and can be inserted into the connection port 57 and fixed by the joint 56. Further, the gas source port 55 is provided with a top connection port connected to an external gas source. The dust collection tube can be connected to an evacuation system installed outside, and its air suction amount can be -500 to -600 mmHg.

  The dust collection port A of the dust collection tube is installed around the lowermost part of the cutting wheel 33. The dust collection port A of the dust collection tube is located above the glass substrate 2 to be cut, and the distance from the bottom of the dust collection port A to the top surface of the glass substrate 2 is 0.3 mm to 1 mm. And the distance between the dust collection port A and the cutting wheel 33 is 5 to 10 mm to ensure relative movement and reduce the exposure of the granules.

  Hereinafter, based on the said embodiment, more preferable embodiment of this invention is described. In the preferred embodiment, the end of the dust collection tube is inclined with respect to the glass substrate 2. More specifically, as shown in FIGS. 3 and 4, in order to correspond to the cutting lines at the cutting points before and after the cutting wheel 33, the dust collection ports A of the front dust collection pipe 51 and the rear dust collection pipe 52 are: The inclination of the end of the dust collection tube is preferably 45 degrees so as to be relatively far from the cutting work point and to accommodate the main movement path of the granules. On the other hand, the dust collection ports A of the left dust collection tube 53 and the right dust collection tube 54 are relatively close to the cutting work point, and therefore the inclination angle can be set to 35 degrees.

  In fact, when the cutting dust collector of the present invention is used, the glass substrate 2 may be cut using a method in which the glass substrate 2 is positioned upward and the cutting dust collector is positioned downward. It does not adhere to the surface of the glass substrate 2. Moreover, the dynamic granules generated by the cutting operation of the cutting wheel 33 are moved toward the dust collection port A under the influence of gravity. At the same time, it is possible to reduce the cleaning work for the fixing stage of the glass substrate 2.

  In another embodiment, the cutting machine 3 may be a laser beam cutting machine, and the dust collecting device 5 may be provided around the cutting machine 3 as described above. Accordingly, the cullet and particles generated when the glass is cut can be completely sucked and removed. In addition, it is possible to prevent the granules from falling on the glass substrate and damaging the pattern, thereby achieving the purpose of protecting the pattern of the glass substrate. Furthermore, it avoids contamination of the glass surface leading to product defects.

  As shown in FIGS. 3 and 4, the method for using the cutting dust collector according to the present invention includes the following steps.

  Step (1): The dust collector 5 and the cutting machine 3 are synchronously driven to fix the glass substrate 2 (not shown, any conventional stage that can fix the glass substrate 2 from the bottom or top surface). Keep away from.

  Step (2): The glass substrate 2 is transported to the fixed stage 4 and fixed by the fixed stage 4.

  Step (3): The dust collector 5 and the cutting machine 3 are driven synchronously and approach one side of the glass substrate 2, but do not reach a distance that allows a cutting operation.

  Step (4): By starting the dust collector 5 and driving the stationary stage 4 or the cutting dust collector with the drive device, the entire surface of the glass substrate 2 is scanned and collected by dust once. , To remove foreign substances that can be attached. The said step (4) is a step performed as needed, and when it is confirmed that there is no adhesion of a foreign material to the glass substrate 2 which passed through the previous step, it is not necessary to perform this step.

  Step (5): After the dust collector 5 and the cutter 3 are moved to the cutting start position, the dust collector 5 and the cutter 3 are all operated, and the fixed stage 4 or the dust collector 5 and the cutter 3 are driven by the driving device. Is driven to move along a predetermined path. The granules moving forward or backward generated when the cutting wheel 33 of the cutting machine 3 performs the cutting operation move directly toward the dust collection port A of the front dust collection pipe 51 and the rear dust collection pipe 52. Granules generated on the side surface when the cutting wheel 33 of the cutting machine 3 performs the cutting operation are sucked by the dust collecting port A of the left dust collecting pipe 53 and the right dust collecting pipe 54.

  Further, during the operation, the negative pressure provided from the gas source port 55 of the dust collector 5 is an irregular pulse from a high pressure to a very high pressure. This not only has an excellent dust collection effect, but also prevents blockage of each dust collection tube. In addition, a uniform negative pressure of the dust collection tube can be secured.

  Step (6): When the cutting operation is completed, the dust collector 5 and the cutting machine 3 are driven synchronously and moved away from the fixed stage 4 of the glass substrate 2.

  Compared with the prior art, the present invention has the following beneficial effects. That is, the cutting dust collecting apparatus is suitable for cutting a thinner glass substrate, and when the glass is cut by a mechanical cutting machine, the dust collecting pipe sucks the cullet generated along with the cutting through the dust collecting port A. By providing one dust collecting tube at each of the front, rear, left, and right of the cutting wheel, the cullet and particles generated when cutting the glass are completely sucked into the glass substrate. The glass substrate pattern can be more effectively prevented from falling and damaging the glass substrate pattern, and the purpose of protecting the glass substrate pattern can be achieved. Furthermore, it avoids contamination of the glass surface leading to product defects.

  Although the technical solution of the present invention has been described with the preferred embodiments of the present invention, various changes and modifications made by those skilled in the art without departing from the scope and spirit of the claims of the present invention are all within the scope of the present invention. It should be understood that it falls within the scope of protection.

100, 2 Glass substrate 110 Multiple display panels 104 Cutting mark 130 Cutting wheel 140 Crack 150 Initial crack 160 Laser beam generator 162 Laser beam 170 Cooling device 3 Cutting machine 31 Cross beam 32 Holder 33 Cutting wheel 4 Fixed stage 51 Previous Dust collection pipe 52 Rear dust collection pipe 53 Left dust collection pipe 54 Right dust collection pipe 55 Gas source port A Dust collection port

Claims (11)

Including cutting machine and dust collector,
The dust collector includes a plurality of dust collecting tubes provided on the outer periphery of the cutting machine,
One end of each dust collection tube is a dust collection port, the other end is a gas source port,
The dust collection port of the dust collection pipe is located around the bottom of the cutting machine,
When cutting, the dust collecting pipe sucks cullet generated by cutting through the dust collecting port.   2. The cutting dust collecting apparatus according to claim 1, wherein each dust collecting pipe shares one gas source port.   The cutting according to claim 2, wherein the dust collecting pipe has a front dust collecting pipe, a rear dust collecting pipe, a left dust collecting pipe, and a right dust collecting pipe provided around the cutting wheel. Dust collector. The cutting machine includes a cross beam, a holder and a cutting wheel,
The cross beam is movable by an external drive,
The holder is two holders fixedly connected in parallel and spaced below the cross beam,
The cutting dust collecting apparatus according to claim 3, wherein the cutting wheel is rotatably provided below the holder.   5. The dust collection port according to claim 4, wherein each dust collection port of the dust collection tube is located above a glass substrate to be cut, and an end portion of the dust collection tube is inclined with respect to the glass substrate. Cutting dust collector.   6. The cutting dust collector according to claim 5, wherein the inclination of the end portions of the front dust collection tube and the rear dust collection tube with respect to the glass substrate is 45 degrees.   6. The cutting dust collector according to claim 5, wherein an inclination of the end portions of the left dust collecting tube and the right dust collecting tube with respect to the glass substrate is 35 degrees. Including a cutter and a dust collector, wherein the dust collector includes a plurality of dust collecting tubes provided on an outer periphery of the cutter, wherein one end of each dust collecting tube is a dust collecting port, and the other end is a gas source port. A dust collection port of the dust collection pipe is a cutting method performed by a cutting dust collecting device located around the bottom of the cutting machine,
A step (1) in which the dust collector and the cutter are driven synchronously to move away from the fixed stage of the glass substrate;
Transporting the glass substrate to a fixed stage and fixing the glass substrate with a fixed stage (2);
After the cutting dust collector is driven to approach the glass substrate and moved to the cutting start position, the dust collector and the cutting machine are all operated, and the fixed stage or the cutting dust collector is driven to be predetermined. Cutting operation along the path of (3), the dust collector synchronously collects dust (3),
And (4) a step of moving the dust collecting device and the cutting machine synchronously to move away from the glass substrate and the fixed stage when the cutting operation is completed.   9. The cutting method according to claim 8, wherein, in the cutting operation, the fixed stage and the glass substrate are positioned above, and the cutting machine dust collecting device is positioned below.   Further, after the step (2) and after the step (3), a dust collection pretreatment step is provided, and in the dust collection pretreatment step, the cutting dust collecting device is driven to one side of the glass substrate. Approaches, but does not reach the cutting workable distance, and then activates the dust collector and drives the fixed stage or the cutting dust collector to make a one-time full operation on the surface of the glass substrate. The cutting method according to claim 9, wherein the dust that can be attached is removed by performing a simple dust collection.   The cutting according to any one of claims 8 to 10, wherein, in the work, the negative pressure provided from the gas source port of the dust collector is an irregular pulse from a high pressure to an ultra-high pressure. Method.