KR20210050097A - Method of cutting glass in laser glass cutting equipment - Google Patents

Abstract

According to the present invention, a method of cutting glass in laser glass cutting equipment includes: a first step of irradiating a laser beam along a single closed curve on an upper surface of a glass base material by using a laser irradiation unit to form a preliminary glass workpiece inside the single closed curve in the glass base material; a second step of separating the glass base material and the preliminary glass workpiece by using a glass impact unit to form the glass workpiece on the inside of a single closed curve in the glass base material; and a third step of separating the glass workpiece from the glass base material using a glass impact unit or a glass press unit. Therefore, it is possible to reduce the weight of the glass base material and make the glass base material thin.

Description

How to cut glass in a laser glass cutting device {METHOD OF CUTTING GLASS IN LASER GLASS CUTTING EQUIPMENT}

Regardless of the thickness of the glass base material and regardless of the size of the glass work piece separated from the glass base material, the present invention generates a crack in the glass base material in the process of forming the glass work piece on the glass base material and the glass in the process of separating the glass work piece from the glass base material. The present invention relates to a method for cutting glass in a laser glass cutting device, which eliminates concerns about the occurrence of a plurality of chips from a base material.

In recent years, since a glass base material is actively used in a display or a motor or solar-related technology field, a contact-type tool has been widely adopted for processing a glass base material. Here, in the display-related technical field, the glass base material is used for a panel protecting a liquid crystal. In the motor-related technical field, the glass base material is used in an encoder that precisely controls the rotation of a motor.

In the solar-related technical field, the glass base material is used for a substrate or a cover of a solar module. To this end, after the contact-type tool makes a weak part on the working surface of the glass base material during the scribe operation on the glass base material, the glass base material is cut along the weak part by applying a physical force from the outside to the operator's design direction. It is processed as it is.

The contact-type tool refers to a diamond wheel or a sandblaster, but during the scribing operation on the glass base material by contacting the glass base material, it requires a lot of work time to make a weak part of the glass base material, and It generates a lot of large and small particles along with unwanted cracks around the vulnerable area.

In addition, the glass base material generates a number of broken chips along the weak part of the glass base material in the thickness direction of the glass base material by unevenly applying a physical force from the outside to make the cut surface of the glass base material coarse, resulting in production yield. Because of the drop, it is providing a reason for increasing the production cost in the technical field related to display or motor or solar power.

In order to compensate for the shortcomings of the scribing operation of the contact-type tool on the glass base material, the glass base material is non-contact processing using a laser beam instead of the contact-type tool during the scribing operation. The laser beam is irradiated along the cutting line of the glass base material in a continuous wave mode or in a pulse width mode of nanoseconds or more to process the glass base material.

However, even if the laser beam is irradiated continuously or pulsed, since it has an irradiation time greater than the heat propagation time of the glass at the cutting line of the glass base material, as the glass base material becomes lighter or thinner, the laser beam is Thermal damage and structural changes occur gradually around the cutting line of the base material, thereby limiting the trend of weight reduction or thinning of the glass base material in the technical field related to display or motor or solar power.

On the other hand, the cutting method of the glass base material is similarly disclosed as a prior art in the name of the invention in Korean Patent Publication No. 10-1498101, "Tempered Glass Cutting Device and Tempered Glass Cutting Method".

Korean Registered Patent Publication No. 10-1498101

The present invention was devised to solve the conventional problem, by appropriately adjusting the pulse width of the laser beam and appropriately adjusting the external physical force applied to the glass base material to pursue the trend of lightening or thinning the glass base material. , Regardless of the thickness of the glass base material and regardless of the size of the glass work piece separated from the glass base material, cracks occur in the glass base material during the formation of the glass work material on the glass base material, and multiples from the glass base material in the separation of the glass work material from the glass base material. It is an object of the present invention to provide a method for cutting glass in a laser glass cutting device, which is suitable for alleviating the concern about the occurrence of chips in

The glass cutting method in the laser glass cutting apparatus according to the present invention comprises forming a preliminary glass workpiece inside the single closed curve in the glass base material by irradiating a laser beam along a single closed curve on the upper surface of the glass base material using a laser irradiation unit. The first step; A second step of separating the glass base material and the preliminary glass work piece using a glass impact unit to form a glass work product in the interior of the single closed curve in the glass base material; And a third step of separating the glass workpiece from the glass base material using the glass impact unit or the glass pressing unit, wherein the preliminary glass workpiece is, as viewed in the first step, after irradiation of the laser beam, The glass base material is partially bonded to the glass base material by being surrounded by the glass base material along the single closed curve in the thickness direction of the glass base material, and the glass workpiece is, as viewed in the second step, the single It is characterized in that it is surrounded by the glass base material along a closed curve and is sandwiched between the glass base material.

Performing the first step may include preparing the glass base material, seating the glass base material on a glass base material including a glass base material base and a glass workpiece base in the laser glass cutting device, and in the laser glass cutting device The shape of the single closed curve stored in the memory is loaded into the laser irradiation unit using the control unit, and before the operation of the laser irradiation unit, based on the control of the control unit, from under the preliminary glass workpiece After separating the glass workpiece pedestal, irradiating the laser beam to the upper surface of the glass base material along the single closed curve using the laser irradiation unit based on the control of the control unit, and irradiating the laser beam to the glass base material It may include positioning the glass workpiece under the preliminary glass workpiece using the glass support unit based on the control of the control unit.

The laser beam may have a green visible light wavelength or an ultraviolet wavelength and may have a pulse width of pico second or femto second.

The glass support unit may have the glass base material stand just below the glass base material, and may have the glass work product stand just below the preliminary glass work product.

Partial bonding of the glass base material and the pre-processed material is a natural cooling process for the glass base material after thermally melting the glass crystals of the glass base material along the single closed curve in the thickness direction of the glass base material using the laser beam In, it may be performed through unstable random bonding of the glass crystal of the glass base material and the glass crystal of the preliminary glass workpiece.

Performing the second step, in a state in which the glass base material pedestal and the glass processed material pedestal of the glass supporting unit are respectively positioned under the glass base material and under the preliminary glass workpiece, based on the control of the control unit, the glass impact unit Using to make a vertical motion relative to at least one of the glass base material and the preliminary glass workpiece outside the single closed curve, on the single closed curve, or inside the single closed curve, and the vertical motion of the glass impact unit During exercise, by using the glass impact unit based on the control of the controller to repeatedly contact the at least one of the glass base material and the preliminary glass workpiece along the single closed curve to periodically apply a physical impact, and the glass base material During the repeated contact of the glass impact unit with the at least one of the preliminary glass workpiece, the glass base material and the preliminary glass workpiece along the single closed curve using the glass impact unit based on the control of the control unit It may involve breaking a natural bond.

Performing the second step, in a state in which the glass base material pedestal and the glass processed material pedestal of the glass supporting unit are respectively positioned under the glass base material and under the preliminary glass workpiece, based on the control of the control unit, the glass impact unit By using a vibration motion relative to at least one of the glass base material and the preliminary glass workpiece outside of the single closed curve, on the single closed curve, or inside the single closed curve, and the vibration of the glass impact unit During exercise, by using the glass impact unit based on the control of the controller to continuously contact the at least one of the glass base material and the preliminary glass workpiece along the single closed curve to periodically apply a physical impact, and the glass base material During the continuous contact of the glass impact unit with respect to the at least one of the preliminary glass workpiece, the glass base material and the preliminary glass workpiece along the single closed curve using the glass impact unit based on the control of the control unit It may involve breaking a natural bond.

Performing the second step, in a state in which the glass base material pedestal and the glass workpiece pedestal of the glass supporting unit are respectively positioned under the glass base material and under the preliminary glass workpiece, based on the control of the control unit, the glass impact unit To give a thermal shock to the glass base material and the preliminary glass work from the outside together with the inside of the single closed curve by using, the glass base material and the preliminary glass work are rapidly cooled, and the glass base material and the preliminary glass work are During rapid cooling of the glass impact unit, using the glass impact unit based on the control of the control unit may include breaking a partial bond between the glass base material and the preliminary glass workpiece along the single closed curve.

The glass impact unit may include rubber, acrylic, silicone, or polyether ketone (PEK) to impart the physical impact to the at least one of the glass base material and the preliminary glass workpiece.

The glass impact unit includes a cooling transfer tool and a pressing tool in contact with the glass base material and the preliminary glass work on the glass base material and the preliminary glass work, and the cooling transfer tool surrounds the pressing tool and the glass It is connected through a cooling unit and a connection member of the Peltier element positioned around the base material, and the connection member, the cooling transfer tool, and the pressing tool may include a metallic material.

Performing the third step, in a state in which the glass base material pedestal and the glass workpiece pedestal of the glass supporting unit are respectively positioned under the glass base material and under the glass workpiece, based on the control of the control unit, the glass impact unit or While pressing the glass workpiece in the inside of the single closed curve using the glass pressing unit, the first vibrational motion of the glass workpiece is made relative to the glass base material, and with the pressing of the glass impact unit or the glass pressing unit During the first vibrational motion, the glass workpiece and the glass workpiece support are relatively lowered with respect to the glass base material and the glass base material support using the glass impact unit or the glass pressure unit based on the control of the control unit, and During the second vibration motion and the downward motion of the glass workpiece and the glass workpiece pedestal and the second vibration motion, the glass impact unit or the glass pressurization unit is used based on the control of the controller. It may include removing the glass workpiece from the glass base material in the thickness direction.

Performing the third step is to position each of the glass base material support and the glass workpiece support of the glass support unit under the glass base material and under the glass product, and based on the control of the control unit, the glass impact unit or the glass The first rotational motion of the glass workpiece is made relative to the glass base material while pressing the glass workpiece in the inside of the single closed curve using a pressing unit, and the first rotational motion of the glass workpiece is made relative to the glass base material, and the first rotational motion of the glass workpiece is pressed together with the glass impact unit or the glass pressing unit. 1 During the rotational motion, the glass workpiece and the glass workpiece support are relatively lowered with respect to the glass base material and the glass base material support using the glass impact unit or the glass pressing unit based on the control of the control unit, and a second movement. The thickness direction of the glass base material by using the glass impact unit or the glass pressing unit based on the control of the control unit during the lowering motion and the second rotational motion of the glass workpiece and the glass workpiece pedestal. It may include removing the glass workpiece from the glass base material.

Performing the third step, in a state in which the glass base material pedestal and the glass workpiece pedestal of the glass supporting unit are respectively positioned under the glass base material and under the glass workpiece, based on the control of the control unit, the glass impact unit or Using the glass pressing unit to make the first vibrational motion and the first rotational motion of the glass workpiece relative to the glass base material while pressing the glass workpiece in the inside of the single closed curve, and pressurizing the glass impact unit or the glass During the first vibration motion and the first rotation motion along with the pressing of the unit, the glass workpiece for the glass base material and the glass base material support using the glass impact unit or the glass pressing unit based on the control of the control unit And the lowering motion, the second vibrational motion, and the second rotational motion of the glass workpiece support, and during the lowering motion, the second vibrational motion, and the second rotary motion of the glass workpiece and the glass workpiece support, the control unit Based on the control of the glass impact unit or the glass pressing unit may include removing the glass workpiece from the glass base material in the thickness direction of the glass base material.

The glass impact unit includes a cooling transfer tool and a pressing tool on the glass base material and the glass workpiece, and the pressing tool is located inside the single closed curve on the glass workpiece, and may be made of a metallic material. .

The glass pressing unit is located inside the single closed curve on the glass workpiece, and may include rubber, acrylic, silicone, or polyether ketone (PEK).

The glass pressing unit may have a flat surface or an uneven surface facing the glass workpiece.

The glass support unit may have a flat surface facing the glass workpiece in the glass workpiece pedestal, or may have a groove for accommodating a lower side of the glass workpiece in the glass workpiece pedestal.

Regardless of the thickness of the glass base material and regardless of the size of the glass work piece separated from the glass base material, cracks occur in the glass base material in the process of forming the glass work material on the glass base material, and a plurality of glass materials are separated from the glass base material in the process of separating the glass work material from the glass base material. To alleviate concerns about chip generation,

The glass cutting method in the laser glass cutting apparatus according to the present invention,

By exposing the glass base material to a laser beam irradiated with a pulse width of pico-seconds or femto-seconds while having a wavelength of green visible light or ultraviolet light, the glass base material is partially exposed to the glass base material by following a single closed curve from the glass base material. To form a preliminary glass workpiece that is joined together,

By giving a physical or thermal shock to at least one of the glass base material and the preliminary glass work piece, a partial bond between the glass base material and the preliminary glass work piece is broken to form a glass work piece sandwiched by the glass base material,

Since the glass workpiece is removed from the glass substrate by relatively moving the glass workpiece in the thickness direction of the glass substrate with respect to the glass substrate, it is possible to pursue the trend of lightening or thinning the glass substrate.

1 is a flow chart illustrating a glass cutting method in a laser glass cutting apparatus according to the present invention.
2A to 2C are schematic views and images illustrating a glass base material prepared to perform the glass cutting method of FIG. 1.
3A to 3C are schematic diagrams and images illustrating step S200 of FIG. 1.
4A to 4D are schematic diagrams and images illustrating step S300 of FIG. 1.
5A to 5H are schematic diagrams and images illustrating step S400 of FIG. 1.
6A and 6B are schematic diagrams and images illustrating a comparative example compared to the glass cutting method of FIGS. 3 to 5.

For a detailed description of the present invention to be described later, reference is made to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. In the drawings, similar reference numerals refer to the same or similar functions over various aspects, and the length, area, thickness, and the like may be exaggerated and expressed for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those of ordinary skill in the art to easily implement the present invention.

1 is a flow chart illustrating a glass cutting method in a laser glass cutting apparatus according to the present invention, and FIGS. 2A to 2C are schematic diagrams and images illustrating a glass base material prepared to perform the glass cutting method of FIG. 1.

In addition, FIGS. 3A to 3C are schematic diagrams and images illustrating step S200 of FIG. 1, and FIGS. 4A to 4D are schematic diagrams and images illustrating step S300 of FIG. 1.

In addition, FIGS. 5A to 5H are schematic diagrams and images for explaining step S400 of FIG. 1, and FIGS. 6A and 6B are schematic diagrams and images for explaining a comparative example compared to the glass cutting method of FIGS. 3 to 5.

1 to 6, firstly, the laser glass cutting apparatus (100 in FIG. 3A) according to the present invention includes a memory (53 in FIG. 3A), a control unit (56 in FIG. 3A) and a laser irradiation unit (Fig. 3A). 59), a glass impact unit (60 in Fig. 4A) and a glass pressing unit (90 in Fig. 5A). The memory 53, the control unit 56, the laser irradiation unit 59, the glass impact unit 60, and the glass pressing unit 90 are electrically connected to each other.

Here, the memory 53, prior to the purchase of the laser glass cutting device 100, has the basic data related to the unique operation function of the laser glass cutting device 100, while the purchase of the laser glass cutting device 100 Thereafter, input data of a worker may be received through an input device ((not shown in the drawing); including a keyboard) and the input data may be stored.

The control unit 56 extracts basic data or input data from the memory 53 and loads the basic data or input data into the laser irradiation unit 59, the glass impact unit 60, or the glass pressurization unit 90 to irradiate the laser. The operation of the unit 59 or the glass impact unit 60 or the glass pressing unit 90 can be electrically controlled.

The laser irradiation unit 59 or the glass impact unit 60 or the glass pressurization unit 90 is based on the control of the control unit 56 in the first step (S200) or The second step S300 or the third step S400 may be performed. Here, the glass impact unit 60 may be replaced with the glass impact unit 80 of FIG. 4C.

Although the glass impact unit 60 gives a physical impact to the glass base material 10, the glass impact unit 80 gives a thermal impact to the glass base material 10. In addition, the glass impact unit 80 may take the role of the glass pressing unit 90. Hereinafter, a method of cutting glass in the laser glass cutting apparatus 100 will be described.

The glass cutting method includes a first step (S200), a second step (S300) and a third step (S400) performed on the glass base material 10 of FIG. 2. Before explaining the glass cutting method, the glass base material 10, as shown in FIG. 2A, in the first step (S200) of the glass cutting method, a laser beam (Fig. It is used to scribe the preliminary glass workpiece 8 in a single closed curve CL using 45 of 3a.

The glass base material 10 externally forms a plate shape, as shown in FIG. 2B when viewed in one direction (V). The glass base material 10 is internally made of an amorphous solid, but is exposed to a laser beam, physical or thermal shock, or is exposed to a pressurized state to easily explain the deformation of the glass material in the glass base material 10 It can be schematically explained by adopting the lattice structure of a crystalline solid (1 in Fig. 2C).

Next, the first step (S200) of the glass cutting method, as shown in Figs. 3a to 3c, a single closed curve (CL1) on the upper surface of the glass base material 10 using the laser irradiation unit 59 It includes forming a preliminary glass workpiece 8 inside a single closed curve CL1 in the glass base material 10 by irradiating the laser beam 45 accordingly. Here, the single closed curve CL1 of FIG. 3A has the same shape as the single closed curve CL of FIG. 2A. 3B is a side view of the glass base material 10 and the laser cutting device 100 when viewed from one direction V of FIG. 3A.

In more detail, performing the first step (S200) of the glass cutting method is to prepare a glass base material 10, and a glass base material support (24 in FIG. 3B) and glass in the laser glass cutting device 100 A glass base material 10 is mounted on a glass base unit 30 including a workpiece base (28 in FIG. 3B), and a single layer stored in the memory 53 using the control unit 56 in the laser glass cutting device 100 It includes loading the shape of the closed curve CL1 into the laser irradiation unit 59.

In addition, performing the first step (S200), before the operation of the laser irradiation unit 59, using the glass receiving unit 30 based on the control of the control unit 59, from below the preliminary glass workpiece (8). Separating the glass workpiece base 28 along the moving line P, and using the laser irradiation unit 59 based on the control of the control unit 56, the glass base material in the first direction (R1) along a single closed curve (CL1). After irradiating the laser beam 45 on the upper surface of (10), and irradiating the laser beam 45 to the glass base material 10, based on the control of the control unit 56, a moving line ( It further comprises positioning the glass workpiece pedestal 28 under the preliminary glass workpiece 28 in the opposite direction of P).

The preliminary glass workpiece 8 is applied to the glass base material 10 along a single closed curve CL1 in the thickness direction of the glass base material 10 after irradiation of the laser beam 45 as viewed in the first step S200. It is surrounded by and partially bonded to the glass base material 10. The reason for separating the glass workpiece pedestal 28 from under the preliminary glass workpiece 8 is to avoid thermal damage to the glass workpiece pedestal 28 during irradiation of the laser beam 45 to the glass substrate 10.

The laser beam 45 forms a pulse width of pico second or femto second while having a green visible or ultraviolet wavelength. Here, the pulse width refers to a single irradiation time of the laser beam 45 during irradiation of the number of repetitions of the laser beam 45. The glass base unit 30 has a glass base material base 24 immediately below the glass base material 10, and a glass work material base 28 immediately below the preliminary glass work 8.

The glass base material support 24 surrounds the glass workpiece support 28. Partial bonding of the glass base material 10 and the preliminary glass workpiece 8 is performed by using a laser beam 45 along a single closed curve CL1 in the thickness direction of the glass base material 10. In the natural cooling process for the glass base material 10 after thermally melting the crystal (= amorphous), it is performed through unstable random bonding of the glass crystals of the glass base material 10 and the glass crystals of the preliminary glass workpiece 8.

Therefore, the partial coupling of the glass base material 10 and the preliminary glass workpiece 8 is, as shown in FIG. 3C, a weak coupling along a single closed curve CL1 when viewed along a single closed speed line CL1. 3). Subsequently, the second step (S300) of the glass cutting method is to separate the glass base material 10 and the preliminary glass workpiece 8 using the glass impact unit 60, as shown in FIGS. 4A to 4D. Thus, it includes forming the glass workpiece 9 in the inside of the single closed curve CL1 in the glass base material 10. Here, FIGS. 4B and 4C are side views of the glass base material 10 and the laser cutting device 100 when viewed from one side direction V of FIG. 4A.

In more detail, performing the second step (S300) of the glass cutting method is the glass base material support 24 of the glass support unit 30 under the glass base material 10 and under the preliminary glass workpiece 8 ) And the glass workpiece pedestal 28 respectively (see Fig. 4b), using the glass impact unit 60 based on the control of the control unit 56, outside of a single closed curve CL1, or a single closed curve It includes performing a vertical motion (M1; see FIGS. 4A or 4B) relative to at least one of the glass base material 10 and the preliminary glass workpiece 8 on (CL1) or within a single closed curve CL1. .

In addition, performing the second step (S300), during the vertical movement (M1) of the glass impact unit 60, based on the control of the control unit 56, a single closed curve (CL1) using the glass impact unit 60 ) Along at least one of the glass base material 10 and the preliminary glass workpiece 8 in the second rotational direction R2 to periodically apply a physical impact, and the glass base material 10 and the preliminary glass workpiece 8 ) During the repeated contact of the glass impact unit 60 for at least one of, the glass base material 10 and the reserve along a single closed curve CL1 using the glass impact unit 60 based on the control of the control unit 56 It further comprises breaking the partial bond of the glass workpiece 8.

Similarly, performing the second step (S300) of the glass cutting method is under the glass base material 10 and under the preliminary glass workpiece 8 and the glass base material base 24 of the glass base unit 30 In the state in which the glass workpiece pedestal 28 is respectively positioned (see FIG. 4B), the glass impact unit 60 is used to control the control unit 56 from the outside of the single closed curve CL1, or the single closed curve CL1. ), or in the interior of a single closed curve CL1, relative to at least one of the glass base material 10 and the preliminary glass workpiece 8 (M2; see FIG. 4B).

In addition, performing the second step (S300) is a single closed curve (CL1) using the glass shock unit 60 based on the control of the control unit 56 during the vibration movement (M2) of the glass shock unit 60. ) In a second direction (R2) along at least one of the glass base material 10 and the preliminary glass workpiece 8 to continuously contact and periodically apply a physical impact, and the glass base material 10 and the preliminary glass workpiece 8 During the continuous contact of the glass impact unit 60 for at least one of, the glass base material 10 and the spare glass along a single closed curve CL1 using the glass impact unit 60 based on the control of the control unit 56 It may further include breaking the partial bond of the workpiece 8.

That is, the glass base material 10 and the preliminary glass workpiece 8, as shown in FIG. 4D, are not bonded to each other but are in close contact with each other after receiving a physical impact, as seen along a single closed curve CL1. It is in state (5). Accordingly, the glass workpiece 9 is surrounded by the glass base material 10 along a single closed curve CL1 in the thickness direction of the glass base material 10 and is surrounded by the glass base material 10 as viewed in the second step (S300). It's stuck. The glass impact unit 60 includes metal or rubber or acrylic or silicone or polyether ether ketone (PEK) to give a physical impact to at least one of the glass base material 10 and the preliminary glass workpiece 8. Includes.

On the other hand, differently, the glass impact unit 60 may be replaced with the glass impact unit 80 of FIG. 4C. Accordingly, performing the second step (S300) of the glass cutting method is the glass base material support 24 and glass of the glass support unit 30 under the glass base material 10 and under the preliminary glass workpiece 8 In the state where the workpiece pedestal 28 is respectively positioned (refer to FIG. 4C), the glass impact unit 80 is used under the control of the control unit 56 in the second direction (from the outside together with the inside of the single closed curve CL1). It may include rapid cooling of the glass base material 10 and the preliminary glass work 8 in order to give a thermal shock to the glass base material 10 and the preliminary glass work 8 with R2 of FIG. 4A.

In addition, performing the second step (S300), during rapid cooling of the glass impact unit 80 on the glass base material 10 and the preliminary glass workpiece 8, based on the control of the control unit 56, the glass impact unit It may further include breaking the partial bonding of the glass base material 10 and the preliminary glass workpiece 8 along a single closed curve CL1 by using 80. Here, the glass base material 10 and the preliminary glass workpiece 8 are thermally contracted with respect to each other during rapid cooling of the glass impact unit 80 to break partial bonds, and after the rapid cooling of the glass impact unit 80 , They are in close contact with each other (5 in FIG. 4D).

The glass impact unit 80 includes a cooling transmission tool 76 and a pressing tool 78 in contact with the glass base material 10 and the preliminary glass work 8 on the glass base material 10 and the preliminary glass work 8. Includes. The cooling transfer tool 76 is connected through a cooling portion of a peltier element 72 and a connection member 74 positioned around the glass base 10 while surrounding the pressing tool 78. The connecting member 74, the cooling transfer tool 76, and the pressing tool 78 comprise a metallic material. Subsequently, the third step (S400) of the glass cutting method is a glass from the glass base material 10 using the glass impact unit 80 or the glass pressing unit 90, as shown in FIGS. 5A to 5H. It involves separating the workpiece 9.

Here, FIGS. 5B to 5D are side views of the glass base material 10 and the laser cutting device 100 when viewed from one side direction V of FIG. 5A. In more detail, performing the third step (S400) of the glass cutting method is the glass base material support 24 of the glass support unit 30 under the glass base material 10 and under the glass workpiece 9 In the state in which the and the glass workpiece base 28 are respectively positioned (see Fig. 5B or 5C), based on the control of the control unit 56, the glass impact unit (80 in Fig. 5C) or the glass pressing unit (90 in Fig. 5B) While pressing the glass workpiece 9 from the inside of the single closed curve CL1 (=force applied from the outside (F); see FIGS. 5A to 5C), the glass workpiece 9 is formed with respect to the glass base material 10. 1 It includes making the oscillating motion (M3) relatively.

In addition, performing the third step (S400), during the first vibration movement (M3) with the pressing (F) of the glass impact unit 80 or the glass pressing unit 90, the control of the controller 56 As a basis, the glass workpiece 9 and the glass workpiece pedestal 28 are relatively lowered with respect to the glass base material 10 and the glass base material support 24 using the glass impact unit 80 or the glass pressing unit 90, and During the second vibrating motion (M4 in FIG. 5B or 5C) and the downward motion of the glass workpiece 9 and the glass workpiece pedestal 28 and the second vibrating motion M4, based on the control of the controller 56, the glass It further includes removing the glass workpiece 9 from the glass base material 10 in the thickness direction of the glass base material 10 using the impact unit 80 or the glass pressing unit 90.

Similarly, performing the third step (S400) of the glass cutting method is the glass base material base 24 and glass of the glass base unit 30 under the glass base material 10 and under the glass workpiece 9 In the state in which the workpiece pedestal 28 is respectively positioned (see Fig. 5B or 5C), a glass impact unit (80 in Fig. 5C) or a glass pressing unit (90 in Fig. 5B) is used based on the control of the control unit 56. Thus, while pressing the glass workpiece 9 inside the single closed curve CL1 (=force applied from the outside (F); see FIGS. 5A to 5C), the first rotation of the glass workpiece 9 with respect to the glass base material 10 It may include making the motion R3 relative.

Performing the third step (S400) is based on the control of the control unit 56 during the first rotational motion (R3) together with the pressing (F) of the glass impact unit 80 or the glass pressing unit 90 Using the glass impact unit 80 or the glass pressing unit 90, relative to the glass base material 10 and the glass base material support 24, the glass workpiece 9 and the glass workpiece support 28 are relatively lowered and the second During the rotational motion (M5 in FIG. 5B or 5C), and the downward motion of the glass workpiece 9 and the glass workpiece base 28 and the second rotary motion M5, the glass impact unit based on the control of the controller 56 It may further include removing the glass workpiece 9 from the glass base material 10 in the thickness direction of the glass base material 10 using 80 or the glass pressing unit 90.

On the other hand, differently, performing the third step (S400) of the glass cutting method is under the glass base material 10 and the glass base material support 24 of the glass support unit 30 under the glass workpiece 9 In the state in which the glass workpiece pedestal 28 is respectively positioned (refer to Fig. 5B or 5C), the glass impact unit (80 in Fig. 5C) or the glass pressing unit (90 in Fig. 5B) is set based on the control of the controller 56. While pressing the glass workpiece 9 inside the single closed curve CL1 (=force applied from the outside (F); see FIGS. 5A to 5C), the first of the glass workpiece 9 against the glass base material 10 It may also include making the vibration movement M3 and the first rotational movement R3 relatively.

Performing the third step (S400), together with the pressing of the glass impact unit 80 or the glass pressing unit 90, during the first vibration movement (M3) and the first rotation movement (R3), the control unit 56 ), the glass workpiece 9 and the glass workpiece pedestal 28 are relative to the glass base material 10 and the glass base material pedestal 24 using the glass impact unit 80 or the glass pressing unit 90. As a descending motion and a second vibrating motion and a second rotational motion (M6 in FIG. 5B or 5C), a descending motion of the glass workpiece 9 and the glass workpiece support 28, and a second vibrating motion and a second rotary motion During (M6), based on the control of the control unit 56, the glass workpiece 9 from the glass base material 10 in the thickness direction of the glass base material 10 using the glass impact unit 80 or the glass pressing unit 90 It may further include subtracting.

Here, the glass impact unit 80 includes a cooling transmission tool 76 and a pressing tool 78 on the glass base material 10 and the glass workpiece 9, as shown in FIG. 4C. The pressing tool 78 is positioned inside a single closed curve CL1 on the glass workpiece 9, and is made of a metallic material, similar to the glass pressing unit 90 of FIG. 5A. The glass pressing unit 90 is located inside a single closed curve (chi) on the glass workpiece 9, and includes metal or rubber or acrylic or silicone or polyether ether ketone (PEEK).

The glass pressing unit 90 has a flat surface or an uneven surface facing the glass workpiece 9. In this case, the glass pressurizing unit 90 may contact the glass workpiece 9 with a large area using the uneven surface while pressing the glass workpiece 9. The glass support unit 30 has a flat surface facing the glass workpiece 9 in the glass workpiece pedestal 9, or a groove for accommodating the lower side of the glass workpiece 9 in the glass workpiece pedestal 9 It may have 22) of FIG. 5D.

That is, the glass support unit 30, as shown in FIGS. 2A to 5C, starts a flat surface facing the glass workpiece 9 in the glass workpiece pedestal 9, but on the glass workpiece pedestal 9 It may have a groove 22 for accommodating the lower side of the glass workpiece 9. In addition, the glass base material 10, while separating the glass workpiece 9, when viewed along a single closed curve CL1, forms a gap with the glass workpiece 8 (G in FIG. 5E), and the glass workpiece 9 ) Is separated (7), an empty space (H in Fig. 5F) is formed in the occupied area of the glass workpiece 8.

In addition, the glass base material 10, when viewed from one side direction (V), under the condition of pressing and vibrating in Fig. 5b or 5c, the processed side wall (S1) surrounding the empty space (H) of the glass base material 10 ), as shown in FIG. 5G, when measured by an electron microscope (not shown in the drawing), worn on the processed sidewall (S1) as a frictional trace, so that the portion looks bright.

In addition, the glass base material 10, when viewed in one direction (V), under the condition of pressing and vibrating and rotating of Fig. 5b or 5c, the processed side wall surrounding the empty space (H) of the glass base material 10 When measuring (S1) with an electron microscope magnification, as shown in FIG. 5H, the machined sidewall S1 may have a portion worn out by friction marks to appear bright and swept with rotation marks to show a screw line.

However, in the laser glass cutting apparatus 100, the laser beam 45 is irradiated to the glass base material 20 in a linear direction D along a straight line SL as shown in FIG. 6A, and the glass base material 20 is exposed to the outside. After cutting the glass base material 20 along a straight line (SL) by applying a force of, when viewed from one direction (V), when measuring the magnification of the electron microscope with respect to the cut surface (S2) of the glass base material 20, As shown in FIG. 6B, no specific trace can be seen on the cut surface S2.

9; Glass workpiece, 10; Glass base material
90; Glass pressing unit, 100; Laser glass cutting device
F; Force, M3; Vibration movement
R3; Rotational motion, V; One side direction
CL1; Single closed curve,

Claims (17)

A first step of forming a preliminary glass workpiece inside the single closed curve in the glass base material by irradiating a laser beam along a single closed curve on the upper surface of the glass base material using a laser irradiation unit;
A second step of separating the glass base material and the preliminary glass work product using a glass impact unit to form a glass work product in the interior of the single closed curve in the glass base material; And
A third step of separating the glass workpiece from the glass base material using the glass impact unit or the glass pressing unit,
The preliminary glass workpiece, as seen in the first step, is partially bonded to the glass base material by being surrounded by the glass base material along the single closed curve in the thickness direction of the glass base material after irradiation of the laser beam,
The glass workpiece, as viewed in the second step, is surrounded by the glass base material along the single closed curve in the thickness direction of the glass base material and is sandwiched between the glass base material.
The method of claim 1,
Performing the first step,
Prepare the glass base material,
In the laser glass cutting device, the glass base material is seated on a glass base material including a glass base material base and a glass workpiece base,
In the laser glass cutting device, the shape of the single closed curve stored in the memory is loaded into the laser irradiation unit by using the control unit,
Before the operation of the laser irradiation unit, based on the control of the control unit, the glass support unit is used to separate the glass workpiece support from under the preliminary glass workpiece,
Based on the control of the controller, the laser beam is irradiated on the upper surface of the glass base material along the single closed curve using the laser irradiation unit,
After irradiation of the laser beam to the glass base material, the glass cutting method in a laser glass cutting device comprising positioning the glass workpiece under the preliminary glass workpiece using the glass support unit based on the control of the control unit .
The method of claim 1,
The laser beam,
A method of cutting a glass in a laser glass cutting device, which has a green visible light wavelength or an ultraviolet wavelength while forming a pulse width of pico second or femto second.
The method of claim 1,
The glass support unit,
Having the glass base material stand directly under the glass base material,
A method for cutting glass in a laser glass cutting device, having the glass workpiece stand just below the preliminary glass workpiece.
The method of claim 1,
Partial bonding of the glass base material and the pre-processed material is a natural cooling process for the glass base material after thermally melting the glass crystals of the glass base material along the single closed curve in the thickness direction of the glass base material using the laser beam In, The glass cutting method in a laser glass cutting device is performed through unstable random bonding of the glass crystal of the glass base material and the glass crystal of the preliminary glass workpiece.
The method of claim 1,
Performing the second step,
Under the glass base material and under the preliminary glass work piece, in a state in which the glass base material base and the glass work material base of the glass base unit are respectively positioned,
Based on the control of the control unit, the glass impact unit is used to perform vertical motion for at least one of the glass base material and the preliminary glass workpiece outside the single closed curve, on the single closed curve, or inside the single closed curve. Relatively,
During the vertical movement of the glass impact unit, the glass impact unit is repeatedly contacted with the at least one of the glass base material and the preliminary glass workpiece along the single closed curve using the glass impact unit based on the control of the control unit to periodically give a physical impact. And
During repeated contact of the glass impact unit with respect to the at least one of the glass base material and the preliminary glass workpiece, the glass base material and the preliminary glass along the single closed curve using the glass impact unit based on the control of the control unit A method of cutting glass in a laser glass cutting apparatus comprising breaking a partial bond of a workpiece.
The method of claim 1,
Performing the second step,
Under the glass base material and under the preliminary glass work piece, in a state in which the glass base material base and the glass work material base of the glass base unit are respectively positioned,
Based on the control of the control unit, a vibration motion is performed for at least one of the glass base material and the preliminary glass workpiece outside the single closed curve, on the single closed curve, or inside the single closed curve using the glass impact unit. Relatively,
During the vibration movement of the glass impact unit, based on the control of the control unit, the glass impact unit is used to continuously contact the at least one of the glass base material and the preliminary glass workpiece along the single closed curve to periodically give a physical impact. And
During the continuous contact of the glass impact unit with the at least one of the glass base material and the preliminary glass workpiece, the glass base material and the preliminary glass along the single closed curve using the glass impact unit based on the control of the control unit. A method of cutting glass in a laser glass cutting apparatus comprising breaking a partial bond of a workpiece.
The method of claim 1,
Performing the second step,
In a state in which the glass base material base and the glass work base of the glass base unit are respectively positioned under the glass base material and under the preliminary glass work,
Based on the control of the controller, the glass impact unit is used to rapidly cool the glass base material and the preliminary glass workpiece to give a thermal shock to the glass base material and the preliminary glass workpiece from the outside as well as the inside of the single closed curve. ,
During rapid cooling of the glass impact unit to the glass base material and the preliminary glass workpiece, partial bonding of the glass base material and the preliminary glass workpiece along the single closed curve using the glass impact unit based on the control of the control unit A method of cutting glass in a laser glass cutting apparatus comprising breaking.
The method according to any one of claims 6 and 7,
The glass impact unit,
Glass cutting method in a laser glass cutting device, including metal or rubber or acrylic or silicone or polyether ether ketone (PEEK) to impart the physical impact to the at least one of the glass base material and the preliminary glass workpiece .
The method of claim 8,
The glass impact unit,
A cooling transfer tool and a pressing tool in contact with the glass base material and the preliminary glass work on the glass base material and the preliminary glass work,
The cooling delivery tool,
It is connected through a cooling part and a connection member of the Peltier element located around the glass base material while surrounding the pressing tool,
The connecting member, the cooling transmission tool and the pressing tool,
A method of cutting glass in a laser glass cutting apparatus comprising a metallic material.
The method of claim 1,
Performing the third step,
In a state in which the glass base material base and the glass work material base of the glass base unit are respectively positioned under the glass base material and under the glass work material,
Based on the control of the control unit, the glass impact unit or the glass pressing unit is used to make the first vibrational motion of the glass workpiece relative to the glass base material while pressing the glass workpiece in the interior of the single closed curve,
During the first vibration motion with the pressing of the glass impact unit or the glass pressing unit, the glass base material and the glass base material support using the glass impact unit or the glass pressing unit based on the control of the control unit The glass workpiece and the glass workpiece base are relatively lowered and subjected to a second vibrational motion,
The glass base material in the thickness direction of the glass base material by using the glass impact unit or the glass pressing unit based on the control of the control unit during the downward movement and the second vibration movement of the glass work and the glass work support A method of cutting glass in a laser glass cutting apparatus comprising removing the glass workpiece from the glass workpiece.
The method of claim 1,
Performing the third step,
Each of the glass base material pedestal and the glass processed material pedestal of the glass supporting unit are positioned under the glass base material and under the glass processed material,
Based on the control of the control unit, by using the glass impact unit or the glass pressing unit to make the first rotational motion of the glass workpiece relative to the glass base material while pressing the glass workpiece in the interior of the single closed curve,
During the first rotational motion with the pressing of the glass impact unit or the glass pressing unit, based on the control of the control unit, the glass base material and the glass base material support using the glass impact unit or the glass pressing unit The glass workpiece and the glass workpiece base are relatively lowered and a second rotational motion,
The glass base material in the thickness direction of the glass base material by using the glass impact unit or the glass pressing unit based on the control of the control unit during the downward movement and the second rotational movement of the glass work and the glass work support A method of cutting glass in a laser glass cutting apparatus comprising removing the glass workpiece from the glass workpiece.
The method of claim 1,
Performing the third step,
In a state in which the glass base material base and the glass work material base of the glass base unit are respectively positioned under the glass base material and under the glass work material,
Based on the control of the control unit, the glass impact unit or the glass pressurization unit is used to perform a first vibrational motion and a first rotational motion of the glass workpiece with respect to the glass base material while pressing the glass workpiece in the interior of the single closed curve. Let it be relatively,
During the first vibration motion and the first rotation motion together with the pressing of the glass impact unit or the glass pressure unit, the glass base material and the glass base material and the glass using the glass impact unit or the glass pressure unit based on the control of the control unit Relatively lowering the glass workpiece and the glass workpiece support with respect to the glass base material support, a second vibrational motion, and a second rotational motion,
During the down motion of the glass workpiece and the glass workpiece pedestal, the second vibration motion, and the second rotation motion, the glass impact unit or the glass pressurization unit is used based on the control of the control unit. A method for cutting glass in a laser glass cutting device, comprising removing the glass workpiece from the glass base material in the thickness direction.
The method according to any one of claims 11 to 13,
The glass impact unit,
Including a cooling transmission tool and a pressing tool on the glass base material and the glass workpiece,
The pressing tool,
Is located inside the single closed curve on the glass workpiece,
A method for cutting glass in a laser glass cutting device, which is made of a metallic material.
The method according to any one of claims 11 to 13,
The glass pressing unit,
Is located inside the single closed curve on the glass workpiece,
A method for cutting glass in a laser glass cutting device, comprising metal or rubber or acrylic or silicone or polyether ether ketone (PEEK).
The method of claim 15,
The glass pressing unit,
Glass cutting method in a laser glass cutting apparatus having a flat surface or an uneven surface facing the glass workpiece.
The method according to any one of claims 11 to 13,
The glass support unit,
The glass workpiece has a flat surface facing the glass workpiece on the pedestal, or
The glass cutting method in a laser glass cutting apparatus having a groove for accommodating the lower side of the glass workpiece in the glass workpiece pedestal.

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