Method and apparatus for edge trimming of glass substrates in an in-line process

Abstract

A method for severing an edge portion from a glass substrate includes applying a scoring tool of a scoring device to the glass substrate such that the scoring tool scores a score line in the glass substrate as the glass substrate moves relative to the scoring device, and applying a cutting bar of a cutting device to the glass substrate as the glass substrate moves relative to the cutting bar to sever the edge portion from the glass substrate along the score line.

Description

Priority claims and cross-references

[0001] This application claims the benefit of priority under 35 U.S.C. § 119 of U.S. Provisional Patent Application No. 62 / 966,288, filed January 27, 2020, the entire disclosure of which is incorporated herein by reference. [Technical Field]

[0002] The present disclosure relates to a method and apparatus for edge trimming a glass substrate in an in-line process. The present disclosure also relates to transporting a glass substrate in an in-line edge trimming process. [Background technology]

[0003] Glass substrates are formed from continuous ribbons that are then separated into individual glass panels for subsequent processing. These substrates can be delivered to customers, who can then incorporate them into various end products, such as flat panel displays and photovoltaic devices. However, existing processes require the glass manufacturer to transport the substrates through several separate intermediate processing steps before the glass ribbon is formed and the glass substrates are incorporated into the end product, which can lead to inefficiencies and high costs.

[0004] One example of such an intermediate processing step is an edge trimming step, in which an edge portion of a glass substrate is cut away from the substrate to produce a glass substrate having predetermined final dimensions for incorporation into a final product. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, there is a need for improved edge trimming processes to reduce the time, throughput, and / or cost required to trim glass substrates to substrates having predetermined dimensions for incorporation into final products. [Means for solving the problem]

[0006] The present disclosure provides methods and apparatus for edge trimming of substrates in an in-line configuration that allows for continuous processing of multiple substrates, including a transport apparatus and associated methods that allows for substrate turnaround using minimal floor space and allows for faster cycle times than existing or conventional methods.

[0007] In one aspect, the present disclosure provides a method for severing an edge portion from a glass substrate. According to some embodiments, such a method includes applying a scoring tool of a scoring apparatus to a glass substrate such that the scoring tool scores a score line in the glass substrate as the glass substrate moves relative to the scoring apparatus, and applying a cutting bar of a cutting apparatus to the glass substrate as the glass substrate moves relative to the cutting bar to sever the edge portion from the glass substrate along the score line.

[0008] In another aspect, the present disclosure provides an apparatus for separating an edge portion from a glass substrate. According to some embodiments, the separating apparatus includes a scoring apparatus including a scoring tool configured to score the glass substrate, and a scoring conveyor configured to support the glass substrate and move the glass substrate relative to the scoring apparatus as the scoring tool scores the glass substrate. The separating apparatus also includes a cutting apparatus including a cutting bar configured to separate the edge portion from the glass substrate along the score line, and a cutting conveyor configured to support the glass substrate and move the glass substrate relative to the cutting apparatus as the cutting bar separates the edge portion from the glass substrate.

[0009] In another aspect, the present disclosure provides a method for redirecting a substrate during an edge trimming process. According to some embodiments, the method includes: moving a glass substrate on a first conveyor in a first transport direction into a transfer zone; and transferring the glass substrate from the first transfer position on the first conveyor to a second transfer position on a second conveyor at a different vertical height than the first transfer position. The method also includes moving the glass substrate out of the transfer zone in a second transport direction different from the first transport direction.

[0010] In another aspect, the present disclosure provides a transfer device for changing the direction of a substrate during an edge trimming process. According to some embodiments, the transfer device includes a first conveyor for moving a glass substrate in a first transport direction. The first conveyor may have a first downstream end located in a transfer zone. The transfer device further includes a second conveyor for moving the glass substrate in a second transport direction. The second conveyor may have a second upstream end located in the transfer zone and overlapping with the first downstream end of the first conveyor. The transfer device further includes a lift unit located in the transfer zone and including a lift actuator and a lifter. The lift unit may be connected to the lifter such that the lifter contacts the glass substrate to move the glass substrate from a first transfer position at the first downstream end of the first conveyor to a second transfer position at the second upstream end of the second conveyor. [Brief explanation of the drawings]

[0011] The present disclosure will be best understood from the following detailed description when read in conjunction with the accompanying drawings. It is expressly noted that the various features of the drawings are drawn according to common practice and are not necessarily drawn to scale. Rather, for clarity, various features are drawn at arbitrarily increased or decreased dimensions. Furthermore, like features will be designated by like reference numerals throughout the specification and drawings. [Figure 1]FIG. 1 is a plan view block diagram illustrating an exemplary edge trimming process according to some embodiments. [Figure 2] FIG. 1 is an isometric view illustrating an exemplary transport system that may be used in connection with the edge trimming process of the present disclosure. [Figure 2A] FIG. 3 is an isometric view illustrating an exemplary substrate that can be moved using the exemplary transport system illustrated in FIG. 2 , according to some embodiments. [Figure 3] FIG. 1 is an isometric view of an exemplary conveyor that can be used to move substrates to a transfer zone, in accordance with some embodiments; [Figure 4A] FIG. 10 is an isometric view of an exemplary lift unit that can be used to move substrates within a transfer zone, according to some embodiments. [Figure 4B] 4B is an end view of the lift unit shown in FIG. 4A positioned in a transfer zone to move a substrate from a first conveyor to a second conveyor, according to some embodiments. [Figure 5] FIG. 1 is an isometric view of an exemplary conveyor that can be used to move substrates from a transfer zone, in accordance with some embodiments; [Figure 6] FIG. 10 is an isometric view of an exemplary conveyor that can be used to move a substrate through a centering zone, according to some embodiments; [Figure 7] FIG. 1 is an isometric view illustrating an exemplary centering device that can be used in a centering zone, in accordance with some embodiments; [Figure 8] FIG. 10 is an isometric view of an exemplary conveyor that can be used in a scoring zone, according to some embodiments; [Figure 9] FIG. 10 is an isometric view of an exemplary scoring device that can be used in the scoring zone, according to some embodiments; [Figure 10] FIG. 10 is an isometric view of a portion of the scoring device shown in FIG. 9, according to some embodiments. [Figure 11] FIG. 10 is an isometric view of an exemplary hold-down roll unit that may be part of the scoring device shown in FIG. 9 , according to some embodiments. [Figure 12]FIG. 1 is an isometric view of an exemplary cutting device and an exemplary conveyor that may be used in a cutting zone, according to some embodiments; [Figure 13] FIG. 13 is an isometric view of a portion of the exemplary cutting device shown in FIG. 12, in accordance with some embodiments. [Figure 14] FIG. 13 is an isometric view of an exemplary retention bar of the cutting device shown in FIG. 12, according to some embodiments. [Figure 15] 15 is a side view illustrating the retention bar of FIG. 14 contacting a substrate in the cutting zone, according to some embodiments. [Figure 16] FIG. 10 is an isometric view of another exemplary lift device that can be used in the transfer zone, according to some embodiments; [Figure 17] FIG. 1 is an isometric view of an exemplary conveyor that can be used to move substrates from a transfer zone, in accordance with some embodiments; [Figure 18] 1 is a flowchart illustrating an exemplary method for severing an edge portion from a substrate, according to some embodiments. [Figure 19] 1 is a flowchart illustrating an exemplary method for redirecting a substrate, according to some embodiments; DETAILED DESCRIPTION OF THE INVENTION

[0012] The following description of exemplary embodiments is intended to be read in conjunction with the accompanying drawings, which are considered a part of this entire specification. When relative terms appear in the description, such as "lower," "upper," "horizontal," "vertical," "above," "below," "up," "down," "top," "bottom," and derivatives thereof (e.g., "horizontally," "downwardly," "upwardly," etc.), such terms should be construed as referring to an orientation in the description or as shown in the drawings to which reference is made at the time. These relative terms are used for convenience of description and do not require that the device be constructed or operated in a particular orientation. Terms relating to attachment or coupling, such as "connected" and "interconnected," unless expressly stated otherwise, shall refer to a relationship in which structures are fixed or attached to one another, either directly or indirectly through intermediate structures, and to a movable or rigid attachment or relationship.

[0013] For purposes of the following description, it is to be understood that the following embodiments may contemplate alternative variations and alternative embodiments, and that the specific articles, compositions, and / or processes described herein are illustrative and should not be considered limiting.

[0014] As used herein, unless the context clearly dictates otherwise, the singular forms "a," "an," and "the" include the corresponding plural references, and references to specific numerical values ​​include at least that specific numerical value. When a value is expressed as an approximation using "about," it is understood that other embodiments comprise the specific value itself. As used herein, "about X" (where X is a numerical value) preferably refers to ±10% of the stated value (including the upper and lower limits). For example, the expression "about 8" preferably refers to a value between 7.2 and 8.8. When ranges are present herein, all such ranges are inclusive and combinable. For example, when a range of "1 to 5" is stated, this range should be interpreted as including ranges such as "1 to 4," "1 to 3," "1 to 2," "1 to 2 and 4 to 5," "1 to 3 and 5," and "2 to 5." Furthermore, when alternatives are explicitly recited, such recitation can be interpreted as implying that any of the recited alternatives may be excluded, for example, by a negative limitation in the claim. For example, when a range of "1 to 5" is recited, this range may be interpreted as including situations in which any of 1, 2, 3, 4, and 5 is negatively excluded. Thus, a recitation of "1 to 5" may be interpreted as "1 and 3 to 5, but not including 2" (or, simply stated, "wherein 2 is not included"). It is intended that any component, element, attribute, or step explicitly recited herein may be explicitly excluded from the claim, regardless of whether such component, element, attribute, or step is listed as an alternative or recited alone.

[0015] The present disclosure provides methods and apparatus for trimming edges from substrates. Such substrates may be transparent substrates, such as glass panels configured for use in device manufacturing, such as displays and photovoltaic devices. The substrates may be trimmed from an intermediate size to a final size, which may be a predetermined size for further manufacturing processes, such as the assembly of displays and photovoltaic devices. The disclosed methods and apparatus enable in-line trimming of substrates. For purposes of this disclosure, "in-line" means that the trimming process and associated transfer processes can be performed in a single continuous process, without the need for buffering substrates or removing substrates from one manufacturing line and feeding them to a separate trimming process. In this manner, the disclosed methods and apparatus enable faster processing of substrates with lower throughput than existing trimming processes. Additionally, as further described herein, the disclosed methods and apparatus have other advantages over existing trimming and transfer processes.

[0016] In some embodiments, the substrate is optically transparent and can be made of glass. Examples of substrates include, but are not limited to, glass panels. As used herein, the terms "glass substrate" or "glass" are understood to encompass any object made entirely or partially of glass, unless expressly stated otherwise. Glass products also include monolithic substrates or laminates of glass and glass, glass and non-glass materials, glass and crystalline materials, and glass and glass-ceramic (including amorphous and crystalline phases).

[0017] Exemplary glasses may include, but are not limited to, suitable glasses such as aluminosilicate, alkali aluminosilicate, borosilicate, alkali borosilicate, aluminoborosilicate, and alkali aluminoborosilicate. Non-limiting examples of glasses also include, for example, IRIS™ glass and GORILLA® glass, manufactured by Corning Incorporated. Optionally, the glass substrate may be subjected to a tempering process. In some embodiments, the glass substrate may be mechanically strengthened by exploiting the mismatch in thermal expansion coefficients within the glass substrate article to create regions of compressive stress and a central region exhibiting tensile stress. In some embodiments, the glass substrate may be thermally strengthened by heating the glass above its glass transition temperature and then rapidly cooling it. In some other embodiments, the glass substrate may be chemically strengthened by ion exchange.

[0018] Referring to FIG. 1 , a plan view of an edge trimming process 100 is shown. The edge trimming process 100 can include a first processing zone 102, a first transfer zone 104, a centering zone 106, a scoring zone 108, a cutting zone 110, a second transfer zone 112, and a second processing zone 114. These zones can be connected using one or more conveyors that can move a substrate from one zone to an adjacent zone. For example, a first conveyor can move a substrate from the first processing zone 102 to the transfer zone 104. When transferring the substrate from the first processing zone 102 to the transfer zone 104, the substrate can move in a first transport direction A as shown. The substrate may move in a second transport direction B when transferring the substrate from the transfer zone to the centering zone 106, when transferring the substrate from the centering zone 106 to the scoring zone 108, when transferring the substrate from the scoring zone to the cutting zone 110, and when transferring the substrate from the cutting zone 110 to the second transfer zone 112. The substrate may move in a third transport direction C when transferring the substrate from the second transfer zone 112 to the second processing zone 114.

[0019] As shown, the edge trimming process 100 of this example can include two transfer zones, which are zones where the substrate changes its transport direction. In this example, transport direction A is perpendicular to transport direction B. In this example, transport direction B is perpendicular to transport direction C. In other examples, the transport directions can be positioned at other relative angles to each other. In other examples, the transport directions can be positioned at acute angles to each other. In yet other examples, the transport directions can be positioned at obtuse angles to each other. In yet other examples, the edge trimming process 100 can include one transfer zone, where the substrate's transport direction can be changed once.

[0020] 1 may be arranged as shown depending on factory floor space constraints or limitations, or according to the requirement to move substrates from a predetermined start position to a predetermined stop position. It will be appreciated that the layout of the edge trimming process 100 may have other layouts that may be necessary or desired to fit within the constraints of other processes or other manufacturing environments.

[0021] The first processing zone 102, the first transfer zone 104, the centering zone 106, the scoring zone 108, the cutting zone 110, the second transfer zone 112, and the second processing zone 114 can be arranged consecutively in the order shown. This relative arrangement allows multiple substrates to move continuously (i.e., without stopping) through the edge trimming process 100. Substrates can be trimmed to their final size in-line without having to move them to a separate trimming process. This allows substrates to be trimmed to their final size more quickly and efficiently than existing or conventional manufacturing processes.

[0022] In existing or conventional manufacturing processes, substrates such as glass substrates can be produced in a glass fabrication process. In the glass fabrication process, glass ribbons and / or sheets can be produced from an appropriate batch of material using known glass fabrication methods, such as fusion draw or float glass. The glass ribbons or sheets can be separated into glass panels or glass substrates for further processing. In addition, in existing and / or conventional glass fabrication processes, glass panels or glass substrates may be shipped in intermediate sizes. Intermediate-size glass substrates are glass substrates that have not yet been trimmed to their final size. Final-size glass substrates are utilized when customers produce end products incorporating the glass substrates (e.g., displays, laptops, tablets, etc.). For example, glass fabrication process constraints or the need for glass manufacturers to produce a wide variety of final-size glass substrates from a single glass sheet may prevent glass manufacturers from efficiently and cost-effectively trimming glass substrates to their final sizes. Due to these limitations, glass manufacturers often deliver intermediate-size glass substrates to their customers. In this case, the customer trims the glass substrate from the intermediate size to the desired final size.

[0023] These existing conventional glass manufacturing processes have several drawbacks. One drawback is that after glass substrates are delivered from the glass manufacturer to the customer, the customer must trim the intermediate-size glass substrates. Trimming the glass substrates from the intermediate size to the final size can increase the cost of the final product. Additionally, the increased processing volume can lead to quality issues, increased breakage, and loss to the customer. Furthermore, when glass substrates are trimmed by the customer, the glass manufacturer cannot reuse or recycle the glass that is removed from the glass substrate during trimming. The waste glass resulting from trimming cannot be quickly and effectively reused within the glass manufacturing process by the glass manufacturer, and is often disposed of through traditional recycling methods.

[0024] The disclosed methods and apparatus, such as the edge trimming process 100, address the above-mentioned shortcomings. For example, the edge trimming process 100 can be incorporated as part of a glass manufacturer's glass fabrication process, allowing the glass substrate to be trimmed to final size before delivery to the customer. This eliminates the need for the customer to perform processing and trimming at their manufacturing facility, as required by existing or conventional methods. Additionally, for example, the glass trimmed from the glass substrate during the edge trimming process 100 can be recovered by the glass manufacturer and reintroduced into the glass forming process. These improvements can improve glass substrate manufacturing efficiency, cost, and speed compared to existing and / or conventional processes.

[0025] 1, the first processing zone 102 may be a location on the edge trimming process 100 where any processing steps that may be necessary or desirable may be performed before the substrate is moved to a subsequent processing zone. The first processing zone 102 may be, for example, a quality control step, a metrology step, or an inspection step. For example, substrates from a glass forming process may be introduced into the edge trimming process 100 and passed through the first processing zone 102.

[0026] The substrate can move from the first processing zone 102 into the first transfer zone 104. In the first transfer zone 104, the substrate can change direction from a first transport direction A to a second transport direction B. As will be described in more detail below, the substrate can change direction in the first transfer zone 104 while passing through the first transfer zone 104 while maintaining a desired transport speed.

[0027] The substrate may continue in a second transport direction B from the first transfer zone 104 to a centering zone 106. The centering zone 106 may include a processing step to move the substrate to a center position. This step is performed to ensure that the substrate has the desired final size after the edge trimming process 100 is completed. The substrate may continue in a second transport direction B from the centering zone 106 to a scoring zone 108. In the scoring zone 108, a scoring device may score the substrate. One or more score lines may be scored in the substrate corresponding to the desired final substrate size.

[0028] The substrate may continue in the second transport direction B from the scoring zone 108 to the cutting zone 110. In the cutting zone 110, a cutting device may separate the substrate edge portion from the substrate. The substrate edge portion may be separated from the substrate along one or more score lines cut into the substrate in the scoring zone 108. The edge portion separated from the substrate may be captured and / or recovered for reintroduction and / or recycling into a glass forming process (not shown).

[0029] The substrate may continue in the second transport direction from the cutting zone 110 into a second transfer zone 112. In the transfer zone 112, the substrate may be redirected from the second transport direction B to a third transport direction C. The substrate may continue in the third transport direction C from the transfer zone 112 to a second processing zone 114. The second processing zone 114 may be any suitable processing step, such as a quality control step, a measurement step, a packaging step, an inspection step, or a cleaning step.

[0030] 1 , the edge trimming process 100 can further include an edge trimming controller 120. The edge trimming controller 120 can be coupled to all of the equipment and / or conveyors in the first processing zone 102, the first transfer zone 104, the centering zone 106, the scoring zone 108, the cutting zone 110, the second transfer zone 112, and the second processing zone 114. In this manner, the edge trimming controller 120 can operate to locally or remotely monitor, control, and / or adjust the processing rate of substrates passing through the edge trimming process 100. That is, the first processing zone 102, the first transfer zone 104, the centering zone 106, the scoring zone 108, the cutting zone 110, the second transfer zone 112, and the second processing zone 114 can be synchronized to provide continuous, uninterrupted movement of multiple substrates through the edge trimming process 100.

[0031] The edge trimming controller 120 may be any suitable controller, such as a computer, server, logic controller, PLC, etc. The edge trimming controller 120 may be coupled to the first processing zone 102, the first transfer zone 104, the centering zone 106, the scoring zone 108, the cutting zone 110, the second transfer zone 112, and the second processing zone 114 using suitable wired or wireless connections. The edge trimming controller 120 may also be used to control and / or regulate other operating parameters of the edge trimming process 100.

[0032] The edge trimming process 100 is an in-line edge trimming process that may be performed on (or in conjunction with) a glass forming and / or glass fabrication process in a glass manufacturing facility. Substrates passing through the edge trimming process 100 may pass sequentially through each of the zones described above, allowing the substrates to be cost-effectively, efficiently, and reliably trimmed to their final size before delivery to a customer.

[0033] Referring now to Figure 2, a transport system 200 is shown. The transport system 200 may be used in connection with the edge trimming process 100 described above. The transport system 200 illustrates one example of various sets of conveyors that may be used to move the substrate 230 through the edge trimming process 100. In the illustrated example, the transport system 200 may move the substrate 230 in a first transport direction A, a second transport direction B, and a third transport direction C, in that order.

[0034] FIG. 2A shows an example of a substrate 230. The substrate 230 can have any suitable shape and can be a glass substrate as described above. In the illustrated example, the substrate 230 is rectangular and can have a thickness T, a width W, and a length L. In a preferred example, the substrate 230 is a glass substrate having a thickness T in the range of about 0.9 mm to about 2.3 mm. In other examples, the thickness T can be other dimensions, such as in the range of about 0.5 mm to about 6.0 mm. In still other examples, other thicknesses T are also possible.

[0035] In a preferred example, the substrate 230 can have a width W in the range of about 200 mm to about 350 mm. In another example, the width W can be in the range of about 220 mm to about 280 mm. In still other examples, other widths W are possible.

[0036] In a preferred example, the substrate 230 can have a length L in the range of about 500 mm to about 700 mm. In another example, the length L can be in the range of about 560 mm to about 750 mm. In still other examples, other lengths L are possible.

[0037] Substrate 230 may also be characterized by the ratio of length L to width W. In some examples, the ratio of length L to width W is about 2. In other examples, the ratio of length L to width W is about 2 or greater. In still other examples, the ratio of length L to width W is about 3 or greater. In other examples, the length L and width W of substrate 230 may have other dimensional ratios.

[0038] The edge trimming process 100 may be operable to trim one or more edge portions 236, 238 from a substrate 230. In the example shown in FIG. 2A , the substrate 230 has a first secant line 232 spaced a distance E1 from a first edge 246. On the opposite side, the substrate 230 has a second secant line 234 spaced a distance E2 from a second edge 248. The edge trimming process 100 may be operable to sever the first edge portion 236 from the substrate 230 along the first secant line 232 and the second edge portion 238 from the substrate 230 along the second secant line 234. Once the first edge portion 236 and the second edge portion 238 are severed from the substrate 230, a main body portion 240 of the substrate 230 remains. The secants 232, 234 can be positioned at desired locations relative to the first edge 246 and the second edge 248 so that the body portion 240 has a desired final size.

[0039] The first secant 232 can be positioned any suitable distance E1 from the first edge 246, and the second secant 234 can be positioned any suitable distance E2 from the second edge 248. In one example, the distances E1 and E2 can be in the range of about 10 mm to about 30 mm. In another example, the distances E1 and E2 can be at least 10 mm. In yet another example, the distances E1 and E2 can be about 30 mm or less. In other examples, the edges 236 and 238 can have other suitable dimensions.

[0040] The substrate 230 can be moved through the edge trimming process 100 in a transport direction A, B, or C. As shown, when the substrate 230 moves in transport direction B, the substrate 230 is considered to have a leading edge 242 and a trailing edge 244. As described above, the edge trimming process 100 can be operated to move the substrate 230 at an efficient and cost-effective speed. One measure of the speed at which the substrate 230 moves through the edge trimming process 100 is the cycle time. The cycle time of the edge trimming process 100 refers to the time it takes for each substrate 230 to pass through any one zone of the edge trimming process 100. In some examples, the edge trimming process 100 can have a cycle time of about 1.8 seconds to about 8.2 seconds. In other examples, the cycle time of the edge trimming process 100 is less than about 2 seconds. In other examples, the cycle time of the edge trimming process 100 is less than about 3 seconds. In still other examples, the cycle time of the edge trimming process 100 is less than about 4 seconds. These cycle times are significantly improved over existing and / or conventional methods.

[0041] Referring again to FIG. 2 , the transport system 200 may include a first transfer conveyor 202. The first transfer conveyor 202 may move the substrate 230 from a first processing zone 204 (e.g., a weighing station) toward a first transfer zone 208. As can be seen, when on the first conveyor 202, the substrate 230 may move in a first transport direction A. In the first transport direction A, the substrate 230 may be moving such that the substrate 230 is in a transverse orientation on the first conveyor 202. When in the transverse orientation, the substrate 230 moves with its long side (i.e., the side with length L) oriented perpendicular to the first transport direction A.

[0042] In the transfer zone 208, the substrate 230 can be redirected from the first transport direction A to the second transport direction B. The second conveyor 206 can support (hold) the substrate 230 as it exits (leaves) the transfer zone 208 in the second transport direction B. In the second transport direction B, the substrate 230 can be oriented longitudinally on the second conveyor 206. When oriented longitudinally, the substrate 230 moves with its long side (i.e., the side with length L) oriented parallel to the second transport direction B.

[0043] The substrate 230 can continue moving in the second conveying direction B and transfer from the second conveyor 206 to the centering conveyor 210 in the centering zone 212. The substrate 230 can continue moving in the second conveying direction B and transfer from the centering conveyor 210 to the scoring conveyor 216 in the scoring zone 214. The substrate 230 can continue moving from the scoring zone 214 to the cutting zone 220 and transfer from the scoring conveyor 216 to the cutting conveyor 218. The cutting conveyor 218 can move the substrate 230 from the cutting zone 220 into the second transfer zone 224. In the second transfer zone 224, the substrate 230 is transferred from the cutting conveyor to the third conveyor 222 and the conveying direction can be changed from direction B to third conveying direction C. In the third transport direction C, the substrate 230 may be in a transverse orientation as described above with respect to the first transport direction A. The third conveyor 222 may move the substrate 230 from the transfer zone 224 to a fourth conveyor 228. The fourth conveyor 228 may move the substrate to the second processing zone 226.

[0044] Referring now to Figure 3, there is shown an example of a first conveyor 202. The first conveyor 202 may be disposed in the transport system 200 to move the substrate 230 from the first processing zone 204 to the first transfer zone 208. The first conveyor 202 may move the substrate 230 in a first transport direction A.

[0045] In the illustrated example, the first conveyor 202 is a dual belt conveyor. The first conveyor may include a first belt 306 and a second belt 308. The first belt 306 and the second belt 308 may be connected to a support structure 304 to support the first belt 306 and the second belt 308 at a desired height. In the illustrated example, the support structure 304 includes four legs and multiple cross beams that can securely support the first belt 306 and the second belt 308. In other examples, the support structure 304 may have other configurations.

[0046] The first conveyor 202 may include a motor 310. The motor 310 is coupled to the first belt 306 and the second belt 308 to move the first belt 306 and the second belt 308 at a desired speed, thereby moving the substrate 230 as desired. The motor 310 may be any suitable motor, and in one example, is an electric motor that can be electrically controlled by the edge trimming controller 120. The first conveyor 202 may also include an encoder 312. The encoder 312 may be any suitable encoder or other sensor that can be used to measure and / or monitor the speed of the first belt 306 and / or the second belt 308. The encoder 312 may be coupled to the edge trimming controller 120 to, for example, monitor operating parameters of the first conveyor 202.

[0047] The first conveyor 202 can have a downstream end 316 and an upstream end 318. The downstream end 316 can be located in the first loading zone 208. The upstream end 318 can be located at the opposite end from the downstream end 316 and can be located at or near the first processing zone 204. The first conveyor 202 can also include a sensor 314. The sensor 314 can be any suitable sensor, such as a proximity sensor, that can be used to detect when the substrate 230 moves into the first loading zone 208 near the downstream end 316 of the first conveyor 202.

[0048] 4A, which shows a first lift unit 400. The first lift unit 400 can be disposed in the first transfer zone 208 and can be installed between the first belt 306 and the second belt 308 of the first conveyor 202. The first lift unit 400 is a device that moves the substrate 230 from a first position where the substrate 230 is supported by the first conveyor 202 to a second position where the substrate 230 is supported (or held) by the second conveyor 206.

[0049] The first lift unit 400 may include a mounting structure 402, a lifter 406, and a lift actuator 404. The mounting structure 402 may be a support element, such as an L-bracket, that may be used to mount the first lift unit 400 to the first conveyor 202. The mounting structure 402 may be connected, for example, to a cross beam of the support structure 304 of the first conveyor 202. In other examples, the mounting structure 402 may have other configurations for supporting the first lift unit 400 in the first transfer zone 208.

[0050] The lifter 406 can be connected to an actuator 404. The actuator 404 can be a linear actuator, such as a suitable pneumatic or electric cylinder, operable to move the lifter 406 vertically. The lifter 406 can be a flat plate supporting one or more spacers 408 and bumpers 410. In the illustrated example, four spacers 408 are disposed at each corner of the lifter 406. The bumpers 410 can be connected to the distal end of each spacer 408. The spacers 408 can be elongated cylindrical members that can position the bumpers 410 at a vertical height higher than the top of the deflector 414. This allows the bumpers 410 to contact the substrate 230 before the deflector 414 contacts the substrate 230. The bumpers 410 can be made of any suitable material that prevents damage to the substrate 230. In some examples, the bumpers 410 can be made of a suitable plastic, polymer, natural rubber, or synthetic rubber. In other examples, other suitable materials can be used.

[0051] As further shown, the first lift unit 400 can include a deflector 414. The deflector 414 can be operable to redirect the trajectory of the substrate 230 if the substrate 230 breaks, shatters, or otherwise breaks into multiple pieces while in the first transfer zone 208. While the actuator 404's movement of the lifter 406 and the bumper 410 can be intended to prevent such breakage from occurring, a defect or unintended movement can cause the substrate 230 to break prematurely while in the first transfer zone 208. The deflector 414 can be angled to redirect the trajectory of the substrate 230 so that it is not captured by the first lift unit 400. The deflector 414 can direct the substrate 230 fragments toward a receiving area, such as a floor, so that the substrate 230 fragments can be recycled or otherwise reused.

[0052] The first lift unit 400 may also include a sensor 418. The sensor 418 may be any suitable sensor, such as a proximity sensor, capable of sensing the position of the substrate 230 and / or the position of the lifter 406. The sensor 418 may be used, for example, to determine when the substrate 230 is in the first transfer zone 208 and ready to move from a first position in contact with the first conveyor 202 to a second position in contact with the second conveyor 206.

[0053] As shown in FIG. 4B , the first lift unit 400 can be positioned to be located below the substrate 230B that has moved into the first transfer zone 208. In the first transfer zone 208, the substrate 230B can be supported by the first belt 306 and the second belt 308 of the first conveyor 202. In this first position, the substrate 230B is also located below the belt 502 of the second conveyor 206. The upper surface of the first conveyor 202 can be vertically spaced a height H from the lower surface of the belt 502 of the second conveyor 206. When the substrate 230B is in the first position in the first transfer zone 208, the first lift unit 400 can move the substrate 230B up to a second position where the substrate 230B contacts the belt 502 of the second conveyor 206.

[0054] When the substrate 230B contacts the belt 502 of the second conveyor, the substrate 230B can be held by the belt 502 of the second conveyor. The belt 502 of the second conveyor 206 can be, for example, a vacuum belt with a series of holes. The holes in the belt 502 can apply negative pressure to hold the substrate 230B against the backside of the belt 502 of the second conveyor 206. As shown in FIG. 4B , the belt 502 of the second conveyor 206 can be moving in a second conveying direction B. This allows the substrate 230 to change direction from the first conveying direction A to the second conveying direction B in the transfer zone 208. The substrate 230 can move on the first conveyor 202 in a first transport direction A (out of the plane of the paper in Figure 4B) to enter the first transfer zone 208, and move on the second conveyor 206 in a second transport direction B (towards the right side of the plane of the paper in Figure 4B) to exit the transfer zone 208.

[0055] This method of redirecting the substrate 230 represents an improvement over existing and / or conventional transfer processes. The arrangement of the first conveyor 202 and the second conveyor 206 described above allows multiple substrates to be routed through the transfer zone 208 more quickly than conventional methods. Conventional methods can only process two consecutive substrates one at a time through the transfer zone 208. In contrast, the configuration described and illustrated herein allows two consecutive substrates to be positioned at different vertical positions in the transfer zone 208, allowing the two consecutive substrates to overlap without interfering with each other. The figure shows a first substrate 230A being held by belt 502 and moved out of the transfer zone 208 by the second conveyor 206. At this time, a second substrate 230B is also present within the first transfer zone 208. A portion of the first substrate 230A and a portion of the second substrate 230B overlap each other. However, since the first substrate 230A is spaced apart from the second substrate 230B in the vertical direction, the first substrate 230A and the second substrate 230B do not interfere with each other.

[0056] This arrangement is also made possible by the arrangement of the first conveyor 202 and the second conveyor 206 in the first transfer zone 208. Referring again to FIG. 2, in the first transfer zone 208, the upstream end of the second conveyor 206 can overlap with the downstream end of the first conveyor 202. In this example, the upstream end of the second conveyor 206 is positioned vertically above the downstream end of the first conveyor 202. Thus, as the substrate 230 moves into the first transfer zone 208, it is lifted from the first conveyor 202 to the second conveyor 206 by the first lift unit 400, allowing the next substrate 230 to begin entering the transfer zone 208 while the previously lifted substrate 230 is still remaining in the first transfer zone 208. In this manner, the cycle time for transferring substrates within the first transfer zone 208 can be increased compared to existing and / or conventional transfer methods.

[0057] Referring now to FIG. 5, an example of the second conveyor 206 is shown. The second conveyor 206 can include a belt 502 that can be driven by a motor 520 at a desired conveying speed. The second conveyor 206 can be secured to a desired position on the conveying system 200 by a first bracket 538 and a second bracket 540. The second conveyor 206 can be a vacuum belt conveyor, and the belt 502 can have a series of openings 526. The second conveyor 206 can further include a series of air attachments 530A-530F. The air attachments can attach air conduits to the second conveyor 206, which can apply negative or positive pressure to the substrates through the multiple openings 526 in the belt 502. In this manner, the substrates 230 can be attracted to and held on the belt 502. The substrates 230 can also be removed from the belt 502 by air. Belt 502 is movable in a second conveying direction B as shown.

[0058] The belt 502 may be moved at any suitable speed by a motor 520 to move the substrate 230 at a desired speed. The second conveyor 206 may further include an encoder 532 disposed on or near the top surface 522 of the belt 502. The encoder 532 may measure and / or monitor the speed of the belt 502. Elements of the second conveyor 206, such as the motor 520, the encoder 532, etc., may be coupled to the edge trimming controller 120, which may synchronize and / or control the operation of the second conveyor 206.

[0059] As described above with respect to the movement of substrates through the first transfer zone 208, the substrate 230 may be held on the underside 524 of the belt 502. The substrate 230 may be lifted into contact with the underside 524 of the belt 502 at or near the upstream end 542 of the second conveyor 206. The substrate 230 may then be moved in the second transport direction B toward the downstream end 544 of the second conveyor 206. At or near the downstream end 544 of the second conveyor, the substrate may be removed from the underside 524 of the belt 502 and dropped onto the centering conveyor 210 (FIG. 6).

[0060] An example of a centering conveyor 210 is shown in FIG. 6. As shown, the centering conveyor 210 may be a two-belt conveyor. The centering conveyor 210 may include a first belt 604 and a second belt 606. The centering conveyor 210 may further include a motor 602 and an encoder 608. The centering conveyor 210 may be similar in many respects to the first conveyor 202 described above. The motor 602 and the encoder 608 may be coupled to the edge trimming controller 120 ( FIG. 1 ), which may enable the conveying speeds of the first belt 604 and the second belt 606 to be monitored, controlled, and / or synchronized with the other conveyors of the conveying system 200. The centering conveyor 210 may be supported on a support structure 610.

[0061] The centering conveyor 210 can move the substrate through a centering device 700 (FIG. 7). The centering device 700 can center the substrate on the centering conveyor 210. As can be appreciated, the substrate 230 may not be in a desired position or orientation after being lifted by the first lift unit 400, transported by the second conveyor 206, and released onto the centering conveyor 210. The centering device 700 can move the substrate 230 on the centering conveyor 210 to a desired position and orientation.

[0062] In the illustrated example, the centering device 700 may have a main body 702, a first side 704, and a second side 708. The main body 702 may be positioned below the first belt 604 and the second belt 606 of the centering conveyor 210 so that the substrate 230 passes between the first side 704 and the second side 708. The first side 704 may include a first centering rod 730, a first centering bar 732, and a pair of centering wheels 734. The first side adjustment device 706 may be used to move the first centering bar 732 in a direction substantially perpendicular to the second conveying direction B. Similarly, the second side 708 may include a second centering rod 720, a second centering bar 722, and a pair of centering wheels 724. The second side adjustment device 710 can be used to move the second centering bar 722 in a direction substantially perpendicular to the second conveying direction B. Thus, the first centering bar 732 and the second centering bar 722 can move inward toward the centering conveyor 210 (not shown in FIG. 7) disposed therebetween.

[0063] The first centering bar 732 and the second centering bar 722 can be aligned with the centering conveyor 210 so that the substrate 230 passing between them is centered on the centering conveyor 210. That is, if the substrate 230 is positioned off-center on the centering conveyor 210, such as skewed on the centering conveyor 210, the edges of the substrate 230 contact the first pair of wheels 734 and / or the second pair of wheels 724, and the first pair of wheels 734 and / or the second pair of wheels 724 can push the substrate 230 into a centered position. In other examples, the centering device 700 can have other configurations different from or modified from the illustrated configuration, such as including more wheels 724, 734 or multiple sets of centering bars 722, 732.

[0064] After being centered on the centering conveyor 210, the substrate 230 can move from the centering conveyor 210 to the scoring conveyor 216. FIG. 8 shows an example of the scoring conveyor 216. In this example, the scoring conveyor 216 is a vacuum conveyor including a belt 802 with a series of openings 808. The scoring conveyor 216 can also include one or more air attachments 816A-816D that can apply negative pressure to the substrate 230 through the openings 808 when the substrate 230 is placed on the upper surface 812 of the belt 802. In this manner, the substrate 230 can be held on the belt 802 of the scoring conveyor 216 during passage through the scoring zone 214. The scoring conveyor 216 can include a motor 806, such as a servo motor. The motor 806 may be coupled to the edge trimming controller 120 so that the conveying speed of the scoring conveyor 216 may be monitored, controlled, and synchronized with the other conveyors of the conveying system 200 .

[0065] The scoring conveyor 216 can move the substrate 230 through a scoring zone 214, which can include a scoring device 900. The scoring device 900 can be used to score the substrate 230 while the substrate 230 moves on the scoring conveyor 216 relative to the scoring device 900. The scoring device 900 can include a first side 902 and a second side 904. The first side 902 can score the first score line 232, and the second side 904 can score the second score line 234 on the substrate 230 (FIG. 2A). The first side 902 and the second side 904 of the scoring device 900 can be fixed on a scoring frame 908 relative to the scoring conveyor 216. The scoring frame 908 may be a rigid structure and may be bolted or otherwise secured to a support structure that is capable of supporting the scoring conveyor 216 in place.

[0066] The first side 902 and second side 904 of the scoring apparatus 900 are substantially similar to one another, with each side disposed on a longitudinal side of the substrate 230. The first side 902 of the scoring apparatus 900 can include a first side actuator 910, a first side scoring tool 912, a first side support roller unit 914, a first side vacuum attachment 920, a first side sensor 922, and a first side adjustment device 924. Similarly, the second side 904 of the scoring apparatus 900 can include a second side actuator 946, a second side scoring tool 932, a second side support roller unit 934, a second side vacuum attachment 940, a second side sensor 942, and a second side adjustment device 944.

[0067] The first side adjustment device 924 and the second side adjustment device 944 can move the first side 902 and the second side 904 of the scoring device 900 toward or away from the longitudinal sides of the substrate 230 (i.e., toward or away from the center of the scoring conveyor 216). In this manner, the positions of the scoring lines 232, 234 can be moved relative to the first edge 246 and the second edge 248 (FIG. 2A). Such adjustments can change the size of the edges 236, 238 (which will be cut from the substrate 230) depending on the desired final size of the substrate 230. The first side adjuster 924 and the second side adjuster 944 may be coupled to a suitable structure, such as a worm screw, worm drive, threaded rod, link, or the like, such that rotation of the first side adjuster 924 and / or the second side adjuster 944 causes the first side 902 and / or the second side 904 to move laterally relative to the scoring conveyor 216. In other examples, other suitable adjustment mechanisms may be used.

[0068] The first side sensor 922 and the second side sensor 942 can be any suitable sensors, such as proximity sensors. The first side sensor 922 and the second side sensor 942 can operate to detect the leading edge 242 ( FIG. 2A ) of the substrate 230 as the substrate 230 approaches the scoring apparatus 900 on the scoring conveyor 216. When the first side sensor 922 and the second side sensor 942 detect and / or determine that the leading edge 242 of the substrate 230 has passed the first side scoring tool 912 and the second side scoring tool 932, the first side actuator 910 and the second side actuator 946 can lower the first side scoring tool 912 and the second side scoring tool 932 toward the substrate 230. The first side scoring tool 912 and the second side scoring tool 932 can then contact the substrate 230 and draw scores 232, 234 in the substrate 230. In the illustrated example, the substrate 230 moves relative to the first side scoring tool 912 and the second side scoring tool 932. The first side scoring tool 912 and the second side scoring tool 932 remain stationary, while the substrate 230 moves. This movement, in cooperation with the other zones of the transport system 200, allows multiple substrates 230 to pass through the scoring zone 214 continuously and synchronously in-line.

[0069] It is preferable to maintain the first-side scoring tool 912 and the second-side scoring tool 932 elevated above the substrate 230 until the leading edge 242 has passed the first-side scoring tool 912 and the second-side scoring tool 932. This prevents the first-side scoring tool 912 and the second-side scoring tool 932 from contacting the leading edge 242 of the substrate 230. If the first-side scoring tool 912 and / or the second-side scoring tool 932 contact the leading edge 242 of the substrate 230, undesirable defects such as chips, defects, cracks, and breakages may be induced in the substrate 230. However, it is preferable that the first-side scoring tool 912 and the second-side scoring tool 932 contact the substrate 230 at a position on the surface of the substrate 230 as close to the leading edge 242 as possible. In some examples, the first side scoring tool 912 and the second side scoring tool 932 contact the substrate 230 at a longitudinal distance of about 1 mm or less from the leading edge 242. In other examples, the first side scoring tool 912 and the second side scoring tool 932 contact the substrate 230 at a longitudinal distance of about 2 mm or less from the leading edge 242. In still other examples, the first side scoring tool 912 and the second side scoring tool 932 can contact the substrate 230 at other longitudinal distances from the leading edge 242 that are suitable for preventing chips or other defects when a cutting device (e.g., FIG. 13 ) separates the edge portion from the substrate 230 along the scores 232, 234.

[0070] 9 , the first side 902 of the scoring apparatus 900 can include a first side support roller unit 914, and the second side 904 of the scoring apparatus 900 can include a second side support roller unit 934. The first side support roller unit 914 can be substantially similar to the second side support roller unit 934, except that the first side support roller unit 914 is symmetrically positioned relative to the second side support roller unit 934, which is located on the opposite side of the substrate 230. For brevity, the following will describe the first side support roller unit 914, but it should be understood that the second side support roller unit 934, having a second side support wheel 936, can have a similar structure and function.

[0071] The first side support roller unit 914 can be disposed below the first side scoring tool 912. The first side support roller unit 914 can include a first side support wheel 916. The first side support wheel 916 can be located below the first side scoring tool 912. As the substrate 230 moves through the scoring apparatus 900, the first side support wheel 916 can contact the downward-facing side of the substrate 230. As the first side scoring tool 912 lowers to contact the upward-facing side of the substrate 230, the first side support wheel 916 can support the downward-facing side of the substrate 230 below the first side scoring tool 912. Thus, the substrate 230 can pass between the first side scoring tool 912 and the first side support wheel 916. This support prevents the substrate 230 from being subjected to undesirable bending forces or other stresses when the substrate 230 is scored with the first side scoring tool 912 .

[0072] Referring now to FIG. 10 , a portion of the second side 904 of the scoring apparatus 900 is shown. As can be seen, the second side 904 can include an actuator 946, a scoring tool 932, a second-side vacuum attachment 940, and a second-side lubrication unit 938. The actuator 946 can be connected to the body of the second side by a first connection 960 and a second connection 962. The first connection 960 and the second connection 962 enable the actuator 946 to move the scoring tool 932 toward the substrate 230 (i.e., downward in FIG. 10 ). The actuator 946 can be any suitable actuator, such as a linear actuator, a cylinder, a solenoid, or the like. The second-side scoring tool 932 can be any suitable scoring tool, such as a scoring wheel.

[0073] A second side oiling unit 938 can be connected to the second side scoring tool 932. The second side oiling unit 938 can be in communication with or contain a sufficient amount of a lubricant, such as oil, that is compatible with the materials of the second side scoring tool 932 and the substrate 230. The second side oiling unit 938 can deliver the lubricant, such as oil, to the second side scoring tool 932 at or near where the second side scoring tool 932 contacts the substrate 230 during scoring. In this manner, the second side oiling unit 938 can minimize and / or prevent undesirable properties, such as unnecessary friction and heat, that may be generated when the second side scoring tool 932 contacts and scores the substrate 230.

[0074] The second side vacuum attachment 940 can be positioned above the second side scoring tool 932. In other examples, the second side vacuum attachment 940 can be positioned elsewhere. The second side vacuum attachment 940 allows a vacuum source to be fluidly connected to the second side 904 of the scoring apparatus 900. For example, the vacuum source can be connected to the upper cylindrical portion of the second side vacuum attachment 940. An appropriate extension, such as an extension hose, can be connected to the opposite side of the second side vacuum attachment 940. The appropriate extension, such as an extension hose, can extend toward or near the location of the second side scoring tool 932. When the second side scoring tool 932 contacts the substrate 230, debris, such as dust and swarf, can be generated. An extension hose (not shown) may extend from the second side vacuum attachment 940 to collect debris such as dust and swarf from the surface of the substrate 230. In other examples, other suitable vacuum sources, blowers, or other devices may be used to collect, clean, or remove debris from the substrate 230.

[0075] 9 and 11 , the scoring apparatus 900 can further include a pressure roll unit 950. The pressure roll unit 950 can be attached to a central region of the scoring apparatus 900. The pressure roll unit 950 can be attached to the scoring frame 908, for example, by a pressure roll arm 952. In other examples, other suitable support structures can be used to position the pressure roll arm 952 on the scoring apparatus 900. The pressure roll unit 950 applies a stabilizing force to the substrate 230 to prevent and / or minimize undesirable movement, such as vibration, of the substrate 230 as it passes through the scoring apparatus 900. As shown, the pressure roll unit 950 includes a pressure roll bar 954. The hold-down roll bar 954 is positioned at or near the surface of the scoring conveyor 216 so that the hold-down roll bar (or an element thereof) can contact and apply a stabilizing force to the substrate 230 as it moves through the scoring apparatus 900. In other examples, the hold-down roll unit 950 can include two or more hold-down roll bars 954 or other suitable structure for applying a stabilizing force to the substrate 230.

[0076] In the illustrated example, the pressure roll bar 954 can include a series of pressure roll wheels 970. Each pressure roll wheel 970 can be connected to the pressure roll bar 954 by a finger extension 972. Each finger extension 972 can have a pivot point that allows the finger extension 972 to rotate the attached pressure roll wheel 970 toward or away from the substrate 230 (i.e., up and down in FIG. 11 ). A biasing member (not shown), such as a coil spring, leaf spring, or compressible bumper, can be used to bias each finger extension 972 toward the substrate 230 (i.e., downward in FIG. 11 ). The material, spring constant, and other properties of the biasing member can be selected to enable the pressure roll wheel 970 to exert a desired stabilizing force on the substrate 230 as the substrate 230 moves through the scoring apparatus 900. In the illustrated example, the pressure roll unit 950 includes six pressure roll wheels 970. In other examples, other numbers of pressure roll wheels 970 or other pressure members such as pressure feet, curved leaf springs, etc. may be used to apply a stabilizing force to the substrate 230.

[0077] After passing through the scoring device 900, the scoring conveyor 216 may move the substrate 230 in a second conveying direction B, exiting the scoring zone 214 and toward the cutting zone 220. In the cutting zone 220, the substrate 230 may be transferred from the scoring conveyor 216 to a cutting conveyor 218. As shown in FIG. 12 , the cutting device 1200 may be mounted at a desired location relative to the cutting conveyor 218. The cutting device 1200 may include a first cutting assembly 1220 and a second cutting assembly 1230. The first cutting assembly 1220 may be positioned on one side of the substrate 230 and on one side of the cutting conveyor 218. The second cutting assembly 1230 may be positioned on the opposite side of the cutting conveyor 218.

[0078] The cutting conveyor 218 can be any suitable conveyor, and in the illustrated example, is a two-belt conveyor. In this example, the cutting conveyor 218 can include a first belt 1208 and a second belt 1210. The first belt 1208 and the second belt 1210 can be coupled to a motor 1206. The cutting conveyor 218 can also include an encoder (not shown) that can monitor and / or measure the conveying speed of the first belt 1208 and / or the second belt 1210. The motor 1206 and / or the encoder (and other elements of the cutting device and / or cutting conveyor 218) can be coupled to the edge trimming controller 120, which can measure, monitor, and / or control the operation of the cutting conveyor 218 and / or the cutting device 1200 and synchronize it with other elements of the conveying system 200.

[0079] Additionally, the cutting conveyor 218 in the illustrated example may further include a first conveyor adjustment device 1202 and a second conveyor adjustment device 1204. The first conveyor adjustment device 1202 may move the first belt 1208, and the second conveyor adjustment device 1204 may move the second belt 1210. The first conveyor adjustment device 1202 and the second conveyor adjustment device 1204 may be coupled to the first belt 1208 and the second belt 1210, respectively, using any suitable coupling or adjustment mechanism. In some examples, the first conveyor adjustment device 1202 and the second conveyor adjustment device 1204 can be coupled to a suitable device, such as a worm gear, a threaded rod, or a rack and pinion mechanism, that can move the first belt 1208 and the second belt 1210 toward or away from each other as the first conveyor adjustment device 1202 and / or the second conveyor adjustment device 1204 rotate. In other examples, the spacing between the first belt 1208 and the second belt 1210 can be electronically controlled and adjusted using a servo, electric motor, actuator, or the like.

[0080] As the substrate 230 moves through the cutting apparatus 1200, it may be desirable to adjust the spacing between the first belt 1208 and the second belt 1210 so that the first belt 1208 and the second belt 1210 are positioned at or near the score lines 232, 234 (FIG. 2A) of the substrate 230. The first belt 1208 and the second belt 1210 can support the substrate 230 at or near the score lines 232, 234 as the edges of the substrate 230 are cut away.

[0081] 13, an example of a first cutting assembly 1220 is shown. As can be appreciated, the second cutting assembly 1230 can be substantially similar to the first cutting assembly 1220. The second cutting assembly 1230 can be symmetrically arranged and configured relative to the first cutting assembly 1220. For brevity, the following will describe the first cutting assembly 1220, but it should be understood that the second cutting assembly 1230 can include similar elements and a similar configuration.

[0082] As shown in this example, the first cutting assembly 1220 can include a cutter adjustment device 1304, a first holder actuator 1306, a first holder bar 1308, a second holder actuator 1310, a second holder bar 1312, a cutter actuator 1314, and a cutting bar 1316. The cutter adjustment device 1304 can be any suitable adjustment mechanism that can be used to adjust the position of the holding bars 1308, 1312 and / or the cutting bar 1316 in the transverse direction (i.e., the direction perpendicular to the second conveying direction B). The cutter adjustment device 1304 can be used, for example, to position the holding bars 1308, 1312 on the substrate inside of the score line 232 and the cutting bar 1316 on the substrate outside of the score line 232. As further shown, the first holding bar 1308 can be further adjusted using a first holder attachment 1330 that allows the holding bar 1308 to move relative to the cutting machine frame 1302, and the second holding bar 1312 can be further adjusted using a second holder attachment 1332 that allows the holding bar 1312 to move relative to the cutting machine frame 1302.

[0083] Once the first cutting assembly 1220 is adjusted to a predetermined position as described above, the first holding bar 1308 and the second holding bar 1312 can be moved toward or away from the substrate 230 (i.e., up and down in FIG. 13 ) using the first holding fixture actuator 1306 to move the first holding bar 1308 and the second holding fixture actuator 1310 to move the second holding bar 1312. The first holding fixture actuator 1306 and the second holding fixture actuator 1310 can be any suitable actuator, such as a linear actuator, a cylinder, a solenoid, or the like.

[0084] Both the first holding bar 1308 and the second holding bar 1312 can contact the substrate 230 as it moves through the cutting apparatus 1200 in the second transport direction B. The first holding bar 1308 and / or the second holding bar 1312 can contact the substrate and apply a stabilizing force to the substrate 230. The stabilizing force is applied to reduce or minimize undesired vibrations or other movement of the substrate 230 in the cutting apparatus 1200.

[0085] In the illustrated example, the first cutting assembly 1220 contacts the substrate 230 with two hold down bars (i.e., a first hold down bar 1308 and a second hold down bar 1312) in the cutting zone 220. In other examples, the first cutting assembly 1220 may use more or fewer hold down bars than two; however, it may be desirable to have at least two hold down bars. This allows for easier and / or more accurate adjustment of the individual hold down bars, thereby ensuring that a uniform stabilizing force is applied to the substrate 230 along the entire length of each hold down bar.

[0086] After or simultaneously with the application of the stabilizing force, the cutting bar 1316 can be moved by a cutter actuator 1314. The cutter actuator 1314 can be an actuator similar to the holder actuators 1306, 1310 described above. In other examples, the cutter actuator 1314 can be an actuator different from the holder actuators 1306, 1310, such as a cylinder, linear actuator, or solenoid. The cutter actuator 1314 can move the cutting bar 1316 toward the substrate 230 (i.e., downward in FIG. 13 ) as the substrate 230 passes through the cutting apparatus 1200. The cutter actuator 1314 can press the cutting bar 1316 against the top surface of the substrate at or near the score line 232 to separate (i.e., cut) the edge portion 236 from the body portion 240 ( FIG. 2A ) of the substrate. At this time, since the dividing line 232 has been drawn on the substrate 230 by the dividing device 900, the substrate 230 is cut repeatedly and efficiently along the dividing line 232.

[0087] The length of the cutting bar 1316 can be at least as long as the length L of the substrate 230. With this relative dimension, the cutting bar 1316 can apply a cutting force along the entire length L of the substrate 230. The cutting bar 1316 can also include one or more cutting wheels 1322 disposed along the lower edge of the cutting bar 1316. The cutting wheels 1322 can contact the surface of the substrate 230 when applying a cutting force to the substrate 230. The cutting action of the saw can be performed at high speeds, and the cutting wheels 1322 can limit or minimize friction that may occur between the cutting bar 1316 and the substrate 230. This results in improved cut quality and an improved edge condition of the substrate 230 after the edge is severed.

[0088] 14 illustrates an example of a holding bar 1312. The holding bar 1312 may be similar to the hold-down roll bar 954 described above. The holding bar 1312 may include a series of holding wheels 1402. Each holding wheel 1402 may be connected to a holding frame 1406 by a holding finger 1404. The holding finger 1404 may rotate relative to the holding frame 1406, biasing the holding finger 1404 toward the substrate 230. Thus, when the cutting bar 1316 is applied to the substrate 230, the holding wheel 1402 may be biased toward the substrate 230 to apply a stabilizing force to the substrate.

[0089] In some examples, the holding bar 1312 and / or cutting bar 1316 can be angled relative to the top surface of the substrate 230. As shown in FIG. 15 , the downstream end of the holding bar 1312 (or cutting bar 1316) can be at a higher vertical position than the upstream end of the holding bar 1312 (or cutting bar 1316). The holding bar 1312 (or cutting bar 1316) can be positioned at an angle θ relative to the top surface of the substrate 230. The lead-in angle θ can be less than 5 degrees. The lead-in angle θ can reduce vibration and movement of the substrate 230 within the cutting apparatus 1200, thereby reducing or limiting undesirable effects such as defects, chipping, dust formation, and breakage.

[0090] As the substrate 230 passes through the cutting apparatus 1200, each cutting bar 1316 can be moved to contact the edge portions 236, 238 of the substrate 230 as the substrate 230 moves in the second transport direction B. Thus, multiple substrates can be moved continuously throughout the transport system 200. As described above, in many existing conventional edge trimming processes, the edge portions 236, 238 are separated in a facility separate from the facility where the substrate 230 is formed. In contrast, the edge trimming process 100 allows the edge portions 236, 238 to be separated in the same facility where the substrate is formed. This leaves the edge portions 236, 238 substantially free of contamination and readily recyclable and / or reusable for further substrate fabrication. Therefore, the edge portions 236, 238 can be recovered in the cutting zone 220. Although not shown, the cutting zone 220 may include a collection portion, such as a receiver, into which the edges 236, 238 may fall after being cut from the substrate 230. These collected edges 236, 238 may be recycled and / or reused to fuse and form new substrates 230.

[0091] After the edges 236, 238 are severed from the substrate 230, the substrate 230 may be moved in a second conveying direction out of the cutting apparatus 1200 toward the downstream end 1212 of the cutting conveyor 218. The downstream end 1212 of the cutting conveyor 218 may be located within the second transfer zone 224. The substrate 230 may be moved in the second transfer zone 224 to change direction from the second conveying direction B to a third conveying direction C. This change in the conveying direction of the substrate 230 in the second transfer zone 224 may be achieved using similar structures and processes as those described with respect to the first transfer zone 208.

[0092] For example, the second lift unit 1600 can be disposed between the first belt 1208 and the second belt 1210 of the cutting conveyor 218. The second lift unit 1600 can be similar in many respects to the first lift unit 400, except that the second lift unit 1600 has a slimmer shape. The slimmer shape of the second lift unit 1600 allows the second lift unit 1600 to lift the substrate 230 from between the first belt 1208 and the second belt 1210 while the substrate 230 is oriented longitudinally on the cutting conveyor 218 (i.e., with the long side of the substrate 230 oriented parallel to the conveying direction B).

[0093] The second lift unit 1600 can include a lift mounting plate 1606, which can be used to connect the second lift unit 1600 to the cutting conveyor 218. The second lift unit 1600 can also include a second lift actuator 1604 that can move the second lift elevator 1602 toward the substrate 230. A plurality of bumpers 1616 can be connected to distal ends of the plurality of spacers 1614. The bumpers 1616 can contact the substrate 230 to move the substrate 230 from a first position where the substrate 230 contacts the cutting conveyor 218 to a second position where the substrate 230 is held by the third conveyor 222 ( FIG. 17 ).

[0094] As shown in FIG. 17 , the third conveyor 222 can be a vacuum belt conveyor similar to the second conveyor 206. The third conveyor 222 can include, for example, a belt 1702 having a series of openings 1712. The third conveyor 222 can further include a series of air attachments 1714A-1714D. An air source can be attached via the air attachments 1714A-1714D, which can apply negative pressure through the multiple openings 1712 in the belt 1702 to hold the substrate 230 to the belt 1702. In this manner, the substrate 230 can be held on the lower surface of the belt 1702. That is, the second lift unit 1600 can lift the substrate 230 from the cutting conveyor 218 to the lower surface of the belt 1702. The substrate 230 can be moved in the third conveying direction C while being held on the lower surface of the belt 1702 and exit the second transfer zone 224.

[0095] To enable this transfer, the upstream end 1720 of the third conveyor 222 can be positioned using a first bracket 1706 and a second bracket 1708 so that the upstream end 1720 of the third conveyor 222 overlaps the downstream end 1212 of the cutting conveyor 218 in the second transfer zone 224. The third conveyor 222 can include a motor 1704 and an encoder 1718. The motor 1704 and the encoder 1718 can be coupled to the edge trimming controller 120 so that operation of the third conveyor 222 and / or the second lift unit 1600 can be measured, monitored, and / or controlled and synchronized with other elements of the transport system 200.

[0096] The substrate 230 may move in a third transport direction C out of the second transfer zone 224 and drop onto a fourth conveyor 228. The fourth conveyor 228 may be any suitable conveyor, such as a twin-belt conveyor, that may further move the substrate 230 into and / or through the second processing zone 226.

[0097] It should be noted that the details and processes of the edge trimming process 100 and / or transport system 200 described above can be implemented as one or more methods. The exemplary method shown in FIG. 18 illustrates a method for separating an edge portion from a substrate. The exemplary method 1800 begins with step 1802, in which a scoring apparatus can determine when a leading edge of the substrate passes a scoring tool. In one example, the scoring apparatus 900 can use the first side sensor 922 or the second side sensor 942 to determine when the leading edge 242 of the substrate 230 passes the scoring tool 912 or 932. In other examples, other suitable sensors or other optical devices can be used.

[0098] In step 1804, the scoring tool can be applied to the substrate as the substrate moves relative to the scoring tool. In the example described above, the scoring apparatus 900 can use the first side actuator 910 and / or the second side actuator 946 to move the first side scoring tool 912 and / or the second side scoring tool 932 into contact with the substrate 230 to score the substrate 230 and draw the score lines 232, 234 in the substrate 230. The scoring conveyor 216 can move the substrate 230 relative to the scoring apparatus 900 while the scoring tools 912, 932 score the substrate 230.

[0099] In step 1806, a pressure roll unit can be applied to the substrate while the scoring tool is applied to the substrate. In the example described above, the scoring apparatus 900 can hold the pressure roll unit 950 in place to bring the pressure roll wheel 970 into contact with the substrate 230 and apply a stabilizing force to the substrate 230 as the substrate 230 moves relative to the scoring apparatus 900 on the scoring conveyor 216.

[0100] In step 1808, as the substrate moves relative to the cutting bar, the cutting bar can be brought into contact with the substrate and the edge portions can be cut from the substrate along the score lines. In the example described above, the cutting device 1200 can move the cutting bar 1316 so that it contacts the substrate 230 at or near the score lines 232, 234, thereby cutting the edge portions 236, 238 from the substrate at the positions of the score lines 232, 234. At this time, the substrate 230 is moving relative to the cutting device 1200 on the cutting conveyor 218.

[0101] In step 1810, the holding units can be brought into contact with the substrate to apply a stabilizing force to the substrate as it moves relative to the cutting bar. In the example described above, the cutting apparatus 1200 can move the first holding bar 1308 and / or the second holding bar 1312 into contact with the substrate 230 to apply a stabilizing force to the substrate 230 as it moves on the cutting conveyor 218 relative to the cutting apparatus 1200.

[0102] It will be appreciated that each step of method 1800 may include other steps and may be performed simultaneously on multiple sides of substrate 230. Additionally, as multiple substrates 230 are continuously moved in-line within transport system 200, each step of method 1800 may be repeated for subsequent substrates 230.

[0103] Another exemplary method is shown as method 1900 for redirecting a substrate. Method 1900 begins with step 1902, in which a first conveyor moves a substrate in a first transport direction into a transfer zone. In the example above, method 1900 may be applied to, for example, first transfer zone 208. Method 1900 may also be applied to second transfer zone 224. However, for simplicity, method 1900 will be described in conjunction with first transfer zone 208. In step 1902, for example, first conveyor 202 may move substrate 230 in a first transport direction A into transfer zone 208.

[0104] In step 1904, the substrate can be transferred from a first transfer position on the first conveyor to a second transfer position on the second conveyor. The first transfer position and the second transfer position can be at different vertical heights. In the example of the first transfer zone 208 described above, the first lift unit 400 can move the substrate 230 from a first position on the first conveyor 202 to a second position on the underside of the second conveyor 206. The position of the substrate 230 on the first conveyor 202 is at a different vertical height than the position of the substrate 230 on the second conveyor 206. In this example, the substrate is lifted from the first position to a second position that is higher than the first position. In other examples, the reverse configuration can be used, i.e., the substrate 230 can be moved from the first position to the second position, and the second position can be lower than the first position. In such an alternative example, the substrate can be dropped from the first position to the second position. In such an alternative configuration, for example, the first conveyor 202 and the second conveyor 206 may be swapped.

[0105] In step 1906, the substrate is moved in a second transport direction out of the transfer zone. The second transport direction can be different from the first transport direction. In the example of the first transfer zone 208 described above, the second conveyor 206 can move the substrate 230 in a second transport direction B out of the first transfer zone 208. In the illustrated example, the first transport direction A and the second transport direction B are arranged perpendicular to each other. In other examples, these transport directions can be arranged in other relative orientations.

[0106] As described above, the disclosed apparatus and method represent a significant improvement over existing and / or conventional edge trimming and transport processes. The disclosed method and apparatus allows multiple substrates to be efficiently and continuously moved through the edge trimming process in cycle times not possible with conventional methods.

[0107] At least some of the methods and steps described herein may be implemented in the form of computer-implemented processes and apparatuses for performing those processes. At least some of the methods of the present disclosure may be implemented in the form of a tangible, non-transitory, machine-readable storage medium having computer program code written thereon. Such a medium may include, for example, a RAM, a ROM, a CD-ROM, a DVD-ROM, a BD-ROM, a hard disk drive, a flash memory, or any combination of these media. When the computer program code is loaded and executed by a computer, the computer becomes an apparatus for performing the method. At least some of the methods may also be implemented in the form of a computer into which the computer program code is loaded and / or executed, in which case the computer becomes an apparatus for performing the method. When implemented on a general-purpose processor, the computer program code segments configure the processor to form specific logic circuits. Alternatively, at least some of the methods may be implemented in a digital signal processor formed with an application-specific integrated circuit for performing the method.

[0108] While the subject matter has been described in connection with exemplary embodiments, the subject matter of this disclosure is not limited thereto. Rather, the appended claims should be construed broadly to include other variations and embodiments that may be implemented by those skilled in the art.

[0109] Preferred embodiments of the present invention will be described below in detail.

[0110] Embodiment 1 applying a scoring tool of the scoring device to the glass substrate such that the scoring tool scores the glass substrate as the glass substrate moves relative to the scoring device; abutting a cutting bar of a cutting device against the glass substrate while the glass substrate moves relative to the cutting bar so as to separate the edge portion from the glass substrate along the score line; A method for separating an edge portion from a glass substrate, comprising:

[0111] Embodiment 2 10. The method of claim 1, further comprising contacting the glass substrate with the scoring tool after an edge sensor detects that a leading edge of the glass substrate has passed the scoring tool.

[0112] Embodiment 3 10. The method of claim 1, further comprising applying a secant stabilizing force to the glass substrate with a hold-down roll unit.

[0113] Embodiment 4 10. The method of claim 1, further comprising moving the glass substrate relative to the scoring device by a scoring conveyor.

[0114] Embodiment 5 the step of applying the scoring tool to the glass substrate includes, after an edge sensor detects that a leading edge of the glass substrate has passed through a first scoring tool and a second scoring tool, applying the first scribing tool to a first edge portion of the glass substrate; applying the second scribing tool to a second edge portion of the glass substrate; 2. The method of claim 1, wherein the first edge portion is disposed on the glass substrate opposite the second edge portion.

[0115] Embodiment 6 2. The method of claim 1, wherein the cutting bar comprises a plurality of cutting wheels contacting the edge of the glass substrate.

[0116] Embodiment 7 10. The method of claim 1, further comprising applying a cutting stabilizing force to the glass substrate with a plurality of holding wheels.

[0117] Embodiment 8 2. The method of claim 1, wherein applying the cutting bar to the glass substrate comprises moving the cutting bar toward the edge of the glass substrate as the glass substrate moves relative to the cutting bar.

[0118] Embodiment 9 9. The method of claim 8, wherein the cutting bar moves in a cutting direction that is different from the relative movement of the glass substrate with respect to the cutting bar.

[0119] Embodiment 10 10. The method of claim 1, further comprising moving the glass substrate relative to the cutting bar by a cutting conveyor.

[0120] Embodiment 11 11. The method of claim 10, wherein the cutting conveyor supports the glass substrate adjacent the score line and is operable to adjust toward or away from the score line.

[0121] Embodiment 12 the method further includes a step of converting a transport direction of the glass substrate from a first transport direction to a second transport direction in a transfer zone; the glass substrate is supported by a first conveyor when moving in the first transport direction, and is supported by a second conveyor when moving in the second transport direction; 2. The method of claim 1, wherein the glass substrate is positioned at a different vertical position in the transfer zone when supported by the first conveyor than when supported by the second conveyor.

[0122] Embodiment 13 a scoring device including a scoring tool configured to score a glass substrate; a scoring conveyor configured to move the glass substrate relative to the scoring device when the scoring tool scores the glass substrate; a cutting device including a cutting bar configured to cut the edge portion from the glass substrate along the score line; a cutting conveyor configured to move the glass substrate relative to the cutting device when the cutting bar cuts the edge portion from the glass substrate; An edge separation device comprising:

[0123] Embodiment 14 The scoring device is an edge sensor configured to detect a leading edge of the glass substrate as the glass substrate approaches the scorching device; 14. The edge separation apparatus of claim 13, further comprising a scoring actuator connected to the scoring tool, the scoring actuator operable to move the scoring tool into contact with the glass substrate after the edge sensor detects that the leading edge of the glass substrate has passed the scoring tool.

[0124] Embodiment 15 The scoring device further includes a pressure roll unit, 14. The edge separation apparatus of embodiment 13, wherein the hold-down roll unit comprises a plurality of hold-down rollers configured to apply a scoring stabilizing force to the glass substrate.

[0125] Embodiment 16 14. The edge separation apparatus of embodiment 13, wherein the cutting bar comprises a plurality of cutting wheels configured to contact the edge portion of the glass substrate.

[0126] Embodiment 17 the cutting device further comprises a holding unit; 14. The edge separation apparatus of embodiment 13, wherein the holding unit comprises a plurality of holding wheels configured to apply a cutting stabilizing force to the glass substrate.

[0127] Embodiment 18 the cutting device further comprising a cutter actuator connected to the cutting bar; 14. The edge separation device of embodiment 13, wherein the cutter actuator is configured to move the cutting bar in a cutting direction that is different from a conveying direction of the cutting conveyor.

[0128] Embodiment 19 The edge separation device further includes a transfer conveyor disposed downstream of the cutting conveyor and overlapping a portion of the cutting conveyor in a transfer zone; the transfer conveyor is configured to move the glass substrate in a second conveying direction different from the first conveying direction of the cutting conveyor; 14. The edge cut-off apparatus of embodiment 13, wherein the transfer conveyor supports the glass substrate at a different vertical position in the transfer zone than the cutting conveyor.

[0129] Embodiment 20 A method for transferring a glass substrate from a first transport direction to a second transport direction, the method comprising: a step of moving the glass substrate in the first conveying direction by a first conveyor and placing it in a transfer zone; transferring the glass substrate from a first transfer position on the first conveyor to a second transfer position on a second conveyor at a different vertical height from the first transfer position; moving the glass substrate in a second transport direction different from the first transport direction to remove it from the transfer zone; A method comprising:

[0130] Embodiment 21 21. The method of embodiment 20, wherein the second transfer position is above the first transfer position.

[0131] Embodiment 22 21. The method of claim 20, wherein transferring the glass substrate from a first transfer position to a second transfer position comprises lifting the glass substrate from the first conveyor to the second conveyor.

[0132] Embodiment 23 21. The method of claim 20, wherein moving the glass substrate in the second transport direction comprises holding the glass substrate on a lower surface of the second conveyor.

[0133] Embodiment 24 the glass substrate has a first surface and a second surface opposite to the first surface; the first conveyor supports the glass substrate on the first surface; 21. The method of claim 20, wherein the second conveyor supports the glass substrate on the second surface.

[0134] Embodiment 25 21. The method of claim 20, further comprising moving the second glass substrate into the transfer zone while moving the first glass substrate out of the transfer zone such that at least a portion of the first glass substrate vertically overlaps at least a portion of the second glass substrate.

[0135] Embodiment 26 A conveying device that transfers a glass substrate from a first conveying direction to a second conveying direction, the device comprising: a first conveyor configured to move the glass substrate in the first transport direction, the first conveyor having a first downstream end located in a transfer zone; a second conveyor configured to move the glass substrate in the second transport direction, the second conveyor having a second upstream end disposed at a position overlapping the first downstream end of the first conveyor in the transfer zone; A lift unit disposed in the transfer zone, Lifter and a lift unit including a lift actuator connected to the lifter so as to bring the lifter into contact with the glass substrate and move the glass substrate from a first transfer position at the first downstream end of the first conveyor to a second transfer position at the second upstream end of the second conveyor; An apparatus comprising:

[0136] Embodiment 27 27. The apparatus of embodiment 26, wherein the first conveying direction is different from the second conveying direction.

[0137] Embodiment 28 27. The apparatus of embodiment 26, wherein the second upstream end of the second conveyor is positioned above the first downstream end of the first conveyor.

[0138] Embodiment 29 27. The apparatus of embodiment 26, wherein the first conveyor comprises a belt supporting a downward-facing surface of the glass substrate.

[0139] Embodiment 30 27. The apparatus of embodiment 26, wherein the second conveyor comprises a vacuum belt that supports an upward-facing surface of the glass substrate. [Explanation of symbols]

[0140] 100 Edge trimming process 102, 204 First treatment zone 104, 208 First Transfer Zone 106, 212 Centered Zone 108, 214 Secant line drawing zone 110, 220 cutting zone 112, 224 Second Transfer Zone 114, 226 Second treatment zone 120 Edge Trimming Controller 200 Transport System 202 First conveyor (first transfer conveyor) 206 Second Conveyor 210 Centering conveyor 216 Cutting Conveyor 218 Cutting Conveyor 222 Third Conveyor 228 Fourth Conveyor 230, 230A, 230B board 232 First secant line 234 Second secant line 236 First Edge 238 Second Edge 240 Main body of the board 242 Front Edge 244 rear edge 246 First Edge 248 Second Edge 304 First conveyor support structure 306 First conveyor, first belt 308 Second belt of first conveyor 314, 418 sensors 400 First Lift Unit 402 Mounting structure 404 Lift Actuator 406 Lifter 408, 1614 spacer 410, 1616 Bumper 414 Deflector 502 Second conveyor belt 604 First belt of centering conveyor 606 Second belt of centering conveyor 610 Support structure for centering conveyor 700 Centering device 702 Main body of centering device 704 First Side of Centering Device 706 Adjustment device for first side of centering device 708 Second Side of Centering Device 710 Second Side Adjustment Device of Centering Device 720 Second centering rod 722 Second Centering Bar 724 Second centering wheel 730 First centering rod 732 First centering bar 734 First centering wheel 802 Cutting conveyor belt 900 Slitting Wire Drawing Device 902 First Side of Scoring Device 904 second side of scoring device 908 Cutting Frame 910 Actuator on the first side of the scoring device 912 First Side Scoring Tool 914 first side support roller unit 916 First side support wheel 920 First Side Vacuum Attachment 922 Sensor on the first side of the scoring device 924 Adjustment device for first side of scoring device 932 Second Side Scoring Tool 934 second side support roller unit 936 Second side support wheel 938 Second side oil difference unit 940 Second Side Vacuum Attachment 942 Sensor on second side of scoring device 944 Second side adjustment device for scoring device 946 Actuator on second side of scoring device 950 Presser Roll Unit 952 Presser roll arm 954 Presser roll bar 960 First Connection 962 Second Connection 970 Presser Roll Wheel 972 Finger-like extension 1200 cutting equipment 1202 First conveyor adjustment device for cutting conveyor 1204 Second conveyor adjustment device for cutting conveyor 1208 First belt of cutting conveyor 1210 Second belt of cutting conveyor 1220 First Cutting Assembly 1230 Second Cutting Assembly 1302 Cutting machine frame 1304 Cutting machine adjustment device 1306 First holder actuator 1308 First Retaining Bar 1310 Second holder actuator 1312 Second Retaining Bar 1314 Cutting machine actuator 1316 Cutting Bar 1322 cut-off wheel 1330 First holder attachment 1332 Second holder attachment 1402 Retaining Wheel 1404 Retention fingers 1406 Retaining Frame 1600 Second Lift Unit 1602 Second lift elevator 1604 Second lift actuator 1606 Lift mounting plate 1702 Third conveyor belt

Claims

1. a scoring device including a scoring tool configured to score a glass substrate; a scoring conveyor configured to move the glass substrate relative to the scoring device when the scoring tool scores the glass substrate; a cutting device including a cutting bar configured to cut the edge portion from the glass substrate along the score line; a cutting conveyor configured to move the glass substrate relative to the cutting device when the cutting bar cuts the edge portion from the glass substrate; An edge separation device comprising: The edge separation apparatus, wherein the cutting bar is positioned at an angle relative to the upper surface of the glass substrate such that a downstream end of the cutting bar is at a higher vertical position than an upstream end of the cutting bar.

2. The scoring device is an edge sensor configured to detect a leading edge of the glass substrate as the glass substrate approaches the scorching device; 10. The edge separation apparatus of claim 1, further comprising: a scoring actuator connected to the scoring tool, the scoring actuator operable to move the scoring tool into contact with the glass substrate after the edge sensor detects that the leading edge of the glass substrate has passed the scoring tool.

3. The scoring device further includes a pressure roll unit, The edge separation apparatus of claim 1 , wherein the hold-down roll unit comprises a plurality of hold-down rollers configured to apply a scoring stabilizing force to the glass substrate.

4. The edge separation device of claim 1 , wherein the cutting bar comprises a plurality of cutting wheels configured to contact the edge portion of the glass substrate.

5. the cutting device further comprises a holding unit; The edge separation apparatus of claim 1 , wherein the holding unit comprises a plurality of holding wheels configured to apply a cut stabilizing force to the glass substrate.

6. the cutting device further comprising a cutter actuator connected to the cutting bar; The edge separation device of claim 1 , wherein the cutter actuator is configured to move the cutting bar in a cutting direction that is different from a conveying direction of the cutting conveyor.

7. The edge separation device further includes a transfer conveyor disposed downstream of the cutting conveyor and overlapping a portion of the cutting conveyor in a transfer zone; the transfer conveyor is configured to move the glass substrate in a second transport direction different from the first transport direction of the cutting conveyor; 2. The edge separation apparatus of claim 1, wherein the transfer conveyor supports the glass substrate at a different vertical position in the transfer zone than the cutting conveyor.

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