Device and method for separating band of brittle material

Abstract

A method of separating a belt includes moving the belt in a direction of travel along a path of travel. The method includes supporting the belt using a first support member and a second support member positioned on a first side of the path of travel. The first support member applies a force to the belt in a first position and the second support member applies a force to the belt in a second position. A distance separating the first location from the second location is less than about 100 millimeters. As the belt moves, a crack in the belt is induced at an intermediate position between the first position and the second position. The method includes separating the tape into a first tape portion and a second tape portion by propagating the crack through the tape. A tape separation device is also provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority under patent law to U.S. Provisional Application Serial No. 63 / 568,569, filed on March 22, 2024, the contents of which are relied upon and incorporated herein by reference in their entirety. Technical Field

[0003] The present invention generally relates to apparatus and methods for separating strips of brittle material, and more particularly, to apparatus and methods for separating strips of brittle material using a three-point bending system. Background Art

[0004] The use of ribbon separation equipment to separate ribbons of brittle materials is known. Conventional ribbon separation equipment is known to separate ribbons of brittle materials (hereinafter referred to as "ribbons"), such as glass ribbons, into multiple ribbon portions. However, during the separation process, regions of the ribbon may experience stresses outside a predetermined stress range. Furthermore, ribbon properties, such as edge quality and performance, may be undesirably altered. Summary of the Invention

[0005] The following presents a simplified summary of the disclosure in order to provide a basic understanding of some aspects described in the detailed description.

[0006] A method for separating a belt using a belt separation device is proposed. For example, the belt may travel along a belt travel path in the belt travel direction. As the belt moves, it may be supported by the belt separation device. The belt separation device may engage the belt and form a three-point bend in the belt, which may generate stress distribution in the belt. The belt separation device may induce cracks at the three-point bend in the belt, thereby separating the belt into multiple belt portions.

[0007] In some aspects, a method of separating a belt includes moving the belt along a path of travel in a direction of travel. The method may include supporting the belt using a first support member and a second support member positioned on a first side of the path of travel. The first support member may apply a first force to the belt at a first position on the path of travel. The second support member may apply a second force to the belt at a second position on the path of travel downstream from the first position relative to the direction of travel. The distance separating the first position from the second position may be less than about 100 mm. As the belt moves in the direction of travel, the method may include inducing a crack in the belt at an intermediate position on the path of travel between the first position and the second position. The method may include separating the belt into a first belt portion and a second belt portion by propagating the crack through the belt in a propagation direction transverse to the direction of travel.

[0008] In some aspects, one or more of the first support member or the second support member can include a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in the travel direction.

[0009] In some aspects, one or more of the first support member or the second support member can include an air bearing.

[0010] In some aspects, initiating the rupture can include contacting the tape with a scoring device.

[0011] In some aspects, initiating the rupture may further include applying a third force from a force applicator to the ribbon at the intermediate location to move the ribbon toward the scoring device.

[0012] In some aspects, applying the third force from the force applicator to the strap can include moving the force applicator between a first position in which the force applicator is not in contact with the strap and a second position in which the force applicator is in contact with the strap.

[0013] In some aspects, a method of separating a belt may include moving the belt along a path of travel in a direction of travel. The method may include supporting the belt on a first side of the belt using a first support member and a second support member. The first support member and the second support member may be spaced apart to form a gap therebetween. As the belt moves in the direction of travel, a crack is initiated in the belt by engaging the first side of the belt within the gap with a scoring device and applying a force to the second side of the belt using a force applicator. The scoring device may be aligned with the force applicator so that a crack may be formed in the belt at a location between the scoring device and the force applicator and between the first support member and the second support member. The method may include separating the belt into a first belt portion and a second belt portion by propagating the crack through the belt in a propagation direction transverse to the direction of travel.

[0014] In some aspects, one or more of the first support member or the second support member can include a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in the travel direction.

[0015] In some aspects, engaging the belt can include contacting the belt with a scribing device and moving the scribing device in the propagation direction. The scribing device can move in the propagation direction at an average speed in a range from about 500 mm / s to about 1500 mm / s while the scribing device is in contact with the belt.

[0016] In some aspects, engaging the tape can include moving the scribing device between a non-contact position in which the scribing device is not in contact with the tape and a contact position in which the scribing device is in contact with the tape and moving in the propagation direction.

[0017] In some aspects, applying the force from the force applicator to the strap can include moving the force applicator between a first position in which the force applicator is not in contact with the strap and a second position in which the force applicator is in contact with the strap.

[0018] In some aspects, the scoring device and the force applicator can be in contact with the belt simultaneously.

[0019] In some aspects, the tape can comprise a thickness in a range from about 25 microns to about 250 microns.

[0020] In some aspects, the tape separation device may include a first support member positioned on a first side of a path of travel along which the tape travels. The first support member may apply a first force to the tape at a first location on the path of travel. The tape separation device may include a second support member spaced apart from the first support member to form a gap between the first and second support members. The second support member may apply a second force to the tape at a second location on the path of travel. The distance separating the first and second locations may be less than approximately 100 mm. A force applicator may be positioned on the second side of the path of travel and aligned with the gap. The force applicator may move the tape toward the gap. A scoring device may be positioned within the gap and aligned with the force applicator. The scoring device may engage the tape and induce a crack in the tape as the tape moves toward the gap.

[0021] In some aspects, the force applicator can be attached to a cam assembly that is configured to rotate to move the force applicator between a first position in which the force applicator is spaced a distance from the belt and not in contact with the belt, and a second position in which the force applicator is in contact with the belt and the belt is moved toward the gap.

[0022] In some aspects, one or more of the first support member or the second support member includes a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in a travel direction.

[0023] In some aspects, one or more of the first support member or the second support member can include an air bearing.

[0024] In some aspects, the scribing device can engage the tape by contacting the tape. The scribing device can include one or more of the following: a scribing tool including a tip that contacts the tape and moves relative to the tape in a direction of travel transverse to the direction of travel of the tape along the path of travel; or a wheel including a circumferential edge that contacts the tape and moves relative to the tape in the direction of travel while the wheel rotates.

[0025] In some aspects, the scoring device can engage the tape without contacting the tape. The scoring device can include one or more of: a laser that directs a laser beam toward the tape, the laser beam striking the tape to induce the crack; or a nozzle that directs a fluid toward the tape, the fluid striking the tape to induce the crack.

[0026] In some aspects, the distance separating the first position from the second position can be in a range from about 40 mm to about 60 mm.

[0027] Additional features and advantages of the various aspects disclosed herein will be set forth in the detailed description that follows, and some of these features and advantages will become apparent to those skilled in the art from that description, or will be learned by practicing the various aspects described herein, including the detailed description that follows, the claims, and the accompanying drawings. It should be understood that the aspects presented in the foregoing general description and the following detailed description are intended to provide an overview or framework for understanding the nature and characteristics of the aspects disclosed herein. The accompanying drawings are included to provide a further understanding and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate various aspects of the disclosure and, together with the description, explain the principles and operation thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] These and other features, aspects and advantages will be better understood when the following detailed description is read with reference to the accompanying drawings, in which:

[0029] Figure 1 schematically illustrates exemplary aspects of a glass manufacturing apparatus according to aspects of the present disclosure;

[0030] Figure 2 A perspective view showing a belt separation device according to aspects of the present disclosure;

[0031] Figure 3 shows a side view of a portion of a belt separator according to aspects of the present disclosure;

[0032] Figure 4 shows a side view of a portion of a belt separator according to aspects of the present disclosure;

[0033] Figure 5 A side view of a striping device with a separator device is shown according to aspects of the present disclosure.

[0034] Figure 6 showing a side view of a force applicator with a separation device according to aspects of the present disclosure;

[0035] Figure 7 showing a side view of a force applicator with a separation device according to aspects of the present disclosure;

[0036] Figure 8 showing a side view of a force applicator with a separation device according to aspects of the present disclosure;

[0037] Figure 9 A side view of a force applicator with a belt separation device is shown according to aspects of the present disclosure.

[0038] Figure 10 A top view showing a portion of a belt separator according to aspects of the present disclosure; and

[0039] Figure 11 A top view of a portion of a belt separator according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0040] Various aspects will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary aspects are shown. Whenever possible, the same reference numerals are used throughout the drawings to refer to the same or similar parts. However, the present disclosure can be embodied in many different forms and should not be construed as limited to the aspects set forth herein.

[0041] As used herein, the term "about" means that quantities, sizes, formulations, parameters, and other quantities and characteristics are not and need not be exact, but may be approximate and / or larger or smaller as desired, reflecting tolerances, conversion factors, rounding, measurement errors, etc., and other factors known to those skilled in the art.

[0042] Ranges may be expressed herein as from "about" one value, and / or to "about" another value. When such ranges are expressed, aspects include from one value to the other value. Similarly, when a value is expressed as an approximation by using the antecedent "about," it will be understood that the value forms another aspect. It will be further understood that the endpoints of each range are significant both relative to the other endpoint and independently of the other endpoint.

[0043] Directional terms used herein, such as up, down, right, left, front, back, top, bottom, upper, lower, etc., are only used with reference to the drawings as drawn and are not intended to imply absolute orientations.

[0044] Unless otherwise expressly stated, it is in no way intended that any method described herein be construed as requiring that its steps be performed in a specific order, or that any apparatus have a specific orientation. Thus, in the absence of a method claim that specifically recites the order in which its steps are to be performed, or a device claim that specifically recites the order or orientation of individual components, or in the absence of other specific statements in the claims or specification that the steps are limited to a specific order, or in the absence of a specific order or orientation of the components of the apparatus, no order or orientation is to be inferred in any respect. This applies to any possible non-express basis for interpretation, including: logical issues regarding the arrangement of steps, operational flow, order of components, or orientation of components; ordinary meaning arising from grammatical organization or punctuation; and the number or type of aspects described in the specification.

[0045] As used herein, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a" component includes aspects having two or more such components unless the context clearly dictates otherwise.

[0046] The words "exemplary," "exemplary," or various forms thereof are used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" or "exemplary" should not be construed as preferred or advantageous over other aspects or designs. Furthermore, the examples are provided for clarity and understanding purposes only and are not intended to limit or restrict the disclosed subject matter or relevant portions of this disclosure in any way. It is understood that numerous additional or alternative examples of varying scope could have been presented, but these have been omitted for the sake of brevity.

[0047] As used herein, the terms "include" and "comprising" and variations thereof should be interpreted as synonymous and open-ended unless otherwise indicated. A list of elements following the transitional phrase "include" or "comprising" is a non-exclusive list such that additional elements may be present in addition to the elements specifically recited in the list.

[0048] As used herein, the terms "substantially," "substantially," and variations thereof are intended to mean that the described feature is equal to or approximately equal to a value or description.

[0049] For example, a "substantially flat" surface is intended to mean a flat or approximately flat surface. Additionally, "substantially" is intended to mean that two values ​​are equal or approximately equal. The term "substantially" can mean that values ​​are within about 10% of each other, such as within about 5% of each other, within about 2% of each other, within about 1% of each other, or within about 0.5% of each other.

[0050] The present disclosure may be modified without departing from the scope or spirit of the claimed subject matter. Unless otherwise indicated, "first," "second," and the like are not intended to connote temporal, spatial, or sequential terms. Rather, such terms are used merely as identifiers, names, and the like of features, elements, items, and the like. For example, a first end and a second end generally correspond to end A and end B or two distinct ends.

[0051] The present disclosure relates to a ribbon separation apparatus for separating a ribbon (e.g., of a brittle material) into a plurality of ribbon portions. For the purposes of this application, a "ribbon" may be considered to be one or more of a glass ribbon in a viscous state, a glass ribbon in an elastic state (e.g., at room temperature), and / or a glass ribbon in a viscoelastic state between the viscous state and the elastic state. The ribbon may comprise a glass ribbon of indeterminate length or one or more separated glass articles (e.g., separated ribbons, separated sheets, separated portions, etc.) comprising a plurality (e.g., four) discrete edges. The method and apparatus for separating a ribbon (e.g., of a brittle material) will now be described by way of exemplary aspects. As Figure 1 As shown schematically, an exemplary glass manufacturing apparatus 100 may include a glass melting and conveying apparatus 102 and a forming device 101, wherein the forming device 101 is configured to produce a glass ribbon 103 from a quantity of molten material 121. The glass ribbon 103 may include a center portion 152 positioned between opposing edge portions (e.g., edge beads) formed along a first edge 153 and a second edge 155 of the glass ribbon 103, wherein the thickness of the edge portion may be greater than the thickness of the center portion. In addition, the separated ribbons (e.g., separated ribbon portions 1001, 1003) may be separated by a ribbon separation device 149 (e.g., as described herein). Figure 2-11 to be described) is separated from the belt 103 along the separation path 151.

[0052] In some aspects, the glass melting and delivery apparatus 102 can include a melting vessel 105 oriented to receive a batch material 107 from a storage bin 109. The batch material 107 can be introduced via a batch delivery device 111 powered by a motor 113. As indicated by arrow 117, an optional controller 115 can be operated to activate the motor 113 to introduce a desired amount of the batch material 107 into the melting vessel 105. The melting vessel 105 can heat the batch material 107 to provide a molten material 121. A melt probe 119 can be used to measure the level of the molten material 121 within a riser 123 and communicate the measured information to the controller 115 via a communication line 125.

[0053] Furthermore, in some aspects, the glass melting and conveying apparatus 102 can include a first conditioning station comprising a fining vessel 127 located downstream from the melting vessel 105 and coupled to the melting vessel 105 via a first connecting conduit 129. For example, the molten material 121 can be gravity-fed from the melting vessel 105 to the fining vessel 127 via an internal path of the first connecting conduit 129. Furthermore, bubbles can be removed from the molten material 121 within the fining vessel 127 by various techniques.

[0054] In some aspects, the glass melting and delivery apparatus 102 can further include a second conditioning station comprising a mixing chamber 131 that can be positioned downstream of the fining vessel 127. The mixing chamber 131 can be used to provide a uniform composition of the molten material 121, thereby reducing or eliminating any non-uniformity that may otherwise exist within the molten material 121 exiting the fining vessel 127. As shown, the fining vessel 127 can be coupled to the mixing chamber 131 via a second connecting conduit 135. For example, the molten material 121 can be gravity-fed from the fining vessel 127 to the mixing chamber 131 via the internal path of the second connecting conduit 135.

[0055] In addition, in some aspects, the glass melting and delivery apparatus 102 can include a third conditioning station including a delivery chamber 133 that can be positioned downstream of the mixing chamber 131. The delivery chamber 133 can condition the molten material 121 to be fed into the inlet conduit. For example, the delivery chamber 133 can be used as a hopper and / or flow controller to adjust the molten material 121 and provide a consistent flow to the inlet conduit. As shown, the mixing chamber 131 can be coupled to the delivery chamber 133 by means of a third connecting conduit 137. For example, the molten material 121 can be gravity fed from the mixing chamber 131 to the delivery chamber 133 by means of an internal path of the third connecting conduit 137. As further shown, the delivery tube 139 can be positioned to deliver the molten material 121 to the forming apparatus 101. The forming apparatus 101 is Figure 1143 , as the forming apparatus 101 may include several different structures. In one possible aspect, the forming apparatus 101 may include structure for melt-drawing molten material 121 from a bottom edge (e.g., root) of a forming wedge to produce the ribbon 103. In such an example, the forming apparatus 101 may include a trough extending along a trough axis between an inlet end and an opposite end. The inlet end is the end of the trough proximate to the delivery tube 139 from which the molten material 121 is received. The molten material 121 may be drawn from the bottom edge (e.g., root) of the forming apparatus 101 along a draw path extending in the ribbon travel direction 154 of the glassmaking apparatus 100. Additional structure, such as edge directors, may guide the molten material 121 away from the forming apparatus 101 and partially define the width 108 of the ribbon 103. However, in other aspects, other forming apparatuses can be used, such as a slot-draw apparatus, in which the molten material 121 is drawn (eg, pulled) through a slot in the bottom of a container (eg, container 143) containing the molten material.

[0056] In some aspects, the width 108 of the ribbon 103 extending between the first edge 153 of the ribbon 103 and the second edge 155 of the ribbon 103 can be selected based on the forming method (e.g., fusion drawing, slot drawing, etc.) In some aspects, the width 108 can be greater than or equal to about 20 millimeters (mm), e.g., greater than or equal to about 50 mm, e.g., greater than or equal to about 100 mm, e.g., greater than or equal to about 500 mm, e.g., greater than or equal to about 1000 mm, e.g., greater than or equal to about 2000 mm, e.g., greater than or equal to about 3000 mm, e.g., greater than or equal to about 4000 mm, although other widths less than or greater than the aforementioned widths can be provided in some aspects. For example, the width 108 can be in the range of from about 20 mm to about 4000 mm, for example, in the range of from about 50 mm to about 4000 mm, for example, in the range of from about 100 mm to about 4000 mm, for example, in the range of from about 500 mm to about 4000 mm, for example, in the range of about 1000 mm to about 4000 mm, for example, in the range of about 2000 mm to about 4000 mm, for example, in the range of about 3000 mm to about 4000 mm, for example. For example, within a range of about 20 mm to about 3000 mm, for example, within a range of about 50 mm to about 3000 mm, for example, within a range of about 100 mm to about 3000 mm, for example, within a range of about 500 mm to about 3000 mm, for example, within a range of about 1000 mm to about 3000 mm, for example, within a range of about 2000 mm to about 3000 mm, for example, within a range of about 2000 mm to about 3000 mm, for example, within a range of about 2000 mm to about 2500 mm, and all ranges and sub-ranges therebetween. In some aspects, the ribbon 103 comprises one or more material states based on the vertical position of the ribbon 103, i.e., the distance from the vessel 143 of the forming apparatus 101. For example, in a first position, the ribbon 103 may comprise a viscous molten material 121, and in a second position, the ribbon 103 may comprise a glassy amorphous solid (e.g., a glass ribbon).

[0057] The ribbon 103 can include a first major surface and a second major surface facing in opposite directions and defining therebetween a thickness (e.g., an average thickness) of the ribbon 103. In some aspects, the thickness of the ribbon 103 can be less than or equal to about 2 millimeters (mm), less than or equal to about 1 mm, less than or equal to about 0.5 mm, e.g., less than or equal to about 300 micrometers (μm), less than or equal to about 200 μm, or less than or equal to about 100 μm, although other thicknesses can be provided in other aspects. For example, the thickness of the ribbon 103 can be in the range of from about 20 microns to about 200 microns, in the range of from about 25 microns to about 250 microns, in the range of from about 50 microns to about 750 microns, in the range of from about 100 microns to about 700 microns, in the range of from about 200 microns to about 600 microns, in the range of from about 300 microns to about 500 microns, in the range of from about 50 microns to about 500 microns, in the range of from 50 microns to about 700 microns, in the range of from about 50 microns to about 600 microns, in the range of from about 50 microns to about 500 microns, in the range of from about 50 microns to about 400 microns, in the range of from about 50 microns to about 300 microns, in the range of from about 40 microns to about 200 microns, in the range of from about 50 microns to about 100 microns, in the range of from about 25 microns to about 125 microns, and all ranges and sub-ranges therebetween. Additionally, ribbon 103 can include a variety of compositions, such as one or more of soda-lime glass, borosilicate glass, aluminoborosilicate glass, alkali-containing glass, alkali-free glass, aluminosilicate, borosilicate, boroaluminosilicate, silicate, glass-ceramic, or other materials including glass. In some aspects, ribbon 103 can include one or more of lithium fluoride (LiF), magnesium fluoride (MgF2), calcium fluoride (CaF2), barium fluoride (BaF2), sapphire (Al2O3), zinc selenide (ZnSe), germanium (Ge), or other materials.

[0058] With separation device 149 (see Figure 1 ) The ribbon 103 can be separated along a separation path 151 to provide a plurality of separated ribbon portions 1001, 1003 (i.e., a plurality of glass sheets). In some aspects, the longer portion of the ribbon 103 can be wound onto a storage roll. The separated ribbons can then be processed into a desired application, such as a display application. For example, the separated ribbons can be used in a wide range of display and non-display applications, including but not limited to liquid crystal displays (LCDs), electrophoretic displays (EPDs), organic light emitting diode displays (OLEDs), plasma display panels (PDPs), micro-LED displays, mini-LED displays, organic light emitting diode lighting, light emitting diode lighting, augmented reality (AR), virtual reality (VR), touch sensors, photovoltaics, foldable phones, or other applications.

[0059] Figure 2 is a perspective view of an exemplary aspect of the tape separator 149. For illustrative purposes, the tape separator 149 is shown without the tape 103 so as not to obscure the structural features of the tape separator 149. However, in operation, and as described with respect to Figure 3-11 As shown in at least some of the drawings, the belt separation device 149 receives and supports the belt 103 so that the belt 103 can be separated into individual and discrete belt portions by the belt separation device 149. The belt separation device 149 can include a first support member 301 and a second support member 303 that can support the belt 103. By supporting the belt 103, the first support member 301 and the second support member 303 can guide the belt 103 and allow the belt 103 to move relative to the first support member 301 and the second support member 303. The first support member 301 and the second support member 303 are arranged along the x-axis (e.g., Figure 2 1 (reference axis shown) so that the belt 103 can travel along the x-axis. In some aspects, the first support member 301 and the second support member 303 can be positioned below the belt 103 relative to the z-axis, where the z-axis is parallel to the direction of gravity. However, other possible orientations are contemplated, such as, for example, where the z-axis is at an angle to the direction of gravity (e.g., not parallel to the direction of gravity).

[0060] In some aspects, one or more of the first support member 301 or the second support member 303 can include rollers, wherein the rollers extend parallel to each other along the y-axis. As explained below, support members 301, 303 can include structures other than rollers, such as air bearings. In some aspects, first support member 301 can include rollers (e.g., or multiple rollers spaced apart along the y-axis), and / or second support member 303 can include rollers (e.g., or multiple rollers spaced apart along the y-axis). When first support member 301 and / or second support member 303 include rollers, the rollers can rotate at a rotational speed that is within approximately 10% of the travel speed of belt 103, within approximately 5% of the travel speed, or substantially equal to the travel speed. In this manner, the rotational speed can be slightly greater (e.g., greater than approximately 10% but less than approximately 5%) than the travel speed, or slightly less than (e.g., less than approximately 10% or less than approximately 5%) than the travel speed. Therefore, when the belt 103 is supported and separated by the belt separation device 149 , the first support member 301 or the second support member 303 does not hinder or inhibit the movement of the belt 103 .

[0061] In some aspects, when the rollers rotate, the support members can be actively driven (e.g., caused to rotate at a predetermined rotational speed), or can be passively rotated without being driven (e.g., such that the rollers rotate in response to the belt 103 contacting and moving relative to the rollers). In some aspects, the rollers can move at the same rotational speed as one another, or at different rotational speeds. For example, in some aspects, the second support member 303 (e.g., comprising rollers) can be downstream of the first support member 301 (e.g., comprising rollers) relative to the direction of travel of the belt 103 along the x-axis. In such examples, the second support member 303 can rotate at a different rotational speed than the first support member 301, where the rotational speed of the second support member 303 is faster than the rotational speed of the first support member 301 and faster than the travel speed of the belt 103. In this way, the rotational speed of the second support member 303 can be selected to increase the speed of the portion of the belt 103 in contact with the second support member 303 after the belt 103 is separated.

[0062] The belt separation device 149 may include a force applicator 307 spaced apart from the first support member 301 and the second support member 303 along the z-axis. In this manner, the belt 103 may pass between the force applicator 307 and the support members 301, 303, with the force applicator 307 on one side of the belt 103 and the support members 301, 303 on opposite sides of the belt 103. The force applicator 307 may selectively apply a force to the belt 103 to move or bias the belt 103 toward the support members 301, 303. In some aspects, the belt separation device 149 may include a control device 309 that is attached to the force applicator 307 and can control the movement of the force applicator 307. For example, the control device 309 may include a cam assembly 311 attached to the force applicator 307. The cam assembly 311 is positioned relative to the belt 103. Figure 6-9 Although not fully shown and described, in general, the cam assembly 311 can include, for example, a shaft 313 that is rotatable and can be driven by one or more of a gear, a motor, a chain, a belt, and the like. In some aspects, the shaft 313 can extend along the y-axis. The cam assembly 311 can include a moving member 315 attached to the shaft 313. Rotation of the shaft 313 can cause the moving member 315 to rotate. The cam assembly 311 can include a link member 317 attached to the moving member 315, wherein the link member 317 is configured to move as the moving member 315 rotates. The cam assembly 311 can include a translating member 319 attached to the link member 317, wherein the translating member 319 is configured to move as the link member 317 moves. The translating member 319 can be attached to the force applicator 307 such that movement of the translating member 319 can cause the force applicator 307 to move along the z-axis in a direction toward and away from the belt 103.

[0063] Figure 3 Shown along Figure 2 A side view of a portion of the tape separation device 149 is shown along line 3-3 in FIG. For illustrative purposes, Figure 3 Less than the entirety of the tape separator 149 is shown so as not to obscure the position of the tape 103 relative to the support members 301, 303 and the force applicator 307. However, in operation, the tape separator 149 may include additional features and structures, such as in Figure 2 The features and structures shown in Figure 3 As shown in FIG, the belt 103 can move along a travel path 401 in a travel direction 403, where the travel direction 403 is along the x-axis. The travel path 401, and therefore the belt 103, can extend between the support members 301, 303 and the force applicator 307, such that the first support member 301 and the second support member 303 are positioned on a first side 405 of the travel path 401 (e.g., as the belt 103 travels along the travel path), and the force applicator 307 is positioned on an opposing second side 407 of the travel path 401. In some aspects, the first side 405 is below the second side 407 (e.g., relative to gravity along the z-axis). In some aspects, the belt 103 can be supported by an air bearing at a location upstream of the first support member 301 (e.g., relative to the travel direction 403), and can be supported by an air bearing at a location downstream of the second support member 303 (e.g., relative to the travel direction 403). As used herein, an air bearing can include at least one wall surrounding a pressurized chamber, wherein a plurality of apertures extend through the at least one wall, wherein pressurized gas (e.g., air) from the pressurized chamber passes through the plurality of apertures. The gas can impinge on the belt 103 to apply a force to the belt 103.

[0064] The second support member 303 can be spaced apart from the first support member 301 to form a gap 411 (e.g., a space, an opening, a separation) between the first support member 301 and the second support member 303. In some aspects, the center (e.g., the midpoint of the diameter) of the first support member 301 is separated from the center (e.g., the midpoint of the diameter) of the second support member 303 by a distance 413, wherein the distance 413 can be less than about 100 mm, or within a range from about 40 mm to about 60 mm. The force applicator 307 can be aligned with the gap 411 so that the force applicator 307 can selectively contact the belt 103 and move the belt 103 toward the gap 411. By being aligned with the gap 411, the longitudinal axis 415 can extend along and parallel to the z-axis, wherein the longitudinal axis 415 intersects the central axis 416 (e.g., the center or midpoint of the diameter) of the force applicator 307 and passes through the gap 411. In some aspects, when the force applicator 307 includes a roller, the force applicator 307 extends along a central axis 416 about which the force applicator 307 rotates. The first support member 301 can apply a force to the belt 103 at a first position 421 along the travel path 401, and the second support member 303 can apply a force to the belt 103 at a second position 423 along the travel path 401. The first position 421 can represent a position along the travel path 401 where the first support member 301 contacts the belt 103 (e.g., when the first support member 301 includes a roller). Similarly, the second position 423 can represent a position along the travel path 401 where the second support member 303 contacts the belt 103 (e.g., when the second support member 303 includes a roller). Thus, the distance 413 separates the first position 421 from the second position 423.

[0065] refer to Figure 3-4 , the tape separation device 149 may include a scoring device 427 positioned within the gap 411 and aligned with the force applicator 307. By being positioned within the gap 411, the scoring device 427 may be positioned between the first support member 301 and the second support member 303 on the first side 405 of the travel path 401. Figure 3 As shown in , the marking device 427 may initially be spaced a distance from the belt 103 so that the marking device 427 may not contact the belt 103. Figure 4As shown, the scoring device 427 can be moved into contact with the strip 103 so that the scoring device 427 can engage the strip 103 and initiate a crack in the strip 103. The crack can include, for example, a scratch, a notch, a crack, or other deformation formed in the strip 103. In some aspects, the scoring device 427 can include a scriber with a tip (e.g., a diamond-tipped scriber, a carbide-tipped scriber, a scoring wheel, a crack-generating device with mechanical contact or a laser, etc.) that is attached to an automated scoring device so that the scoring device 427 can selectively engage and contact the strip 103. In some aspects, when the force applicator 307 includes a roller, the longitudinal axis 415 can pass through the central axis 416 and through the scoring device 427 so that the force applicator 307 and the scoring device 427 are aligned, wherein the scoring device 427 is configured to move along the y-axis in a direction parallel to the central axis 416 when the scoring device 427 is in contact with the strip 103.

[0066] In operation, and refer to Figure 3-4 , a method of dividing the belt 103 into discrete belt portions may include moving the belt 103 along a travel path 401 in a travel direction 403. As the belt 103 moves, the method may include supporting the belt 103 with a first support member 301 and a second support member 303 positioned on a first side 405 of the travel path 401, wherein the first support member 301 applies a force to the belt 103 at a first location 421 and the second support member 303 applies a force to the belt 103 at a second location 423 downstream from the first location 421 relative to the travel direction 403. As the belt 103 moves in the travel direction 403, the method may include initiating a crack in the belt 103 at an intermediate location 501 of the travel path 401 between the first location 421 and the second location 423 (e.g., as shown in FIG. 5 ). Figure 10 Initiating a crack can include contacting the belt 103 with a scoring device 427. For example, as the belt 103 moves in the direction of travel 403, initiating a crack can include engaging the first side 405 of the belt 103 within the gap 411 with the scoring device 427 while simultaneously applying a force to the second side 407 of the belt 103 with the force applicator 307. The scoring device 427 is aligned with the force applicator 307 so that a crack is formed at a location on the belt 103 between the scoring device 427 and the force applicator 307 and between the first support member 301 and the second support member 303. Figure 4 As shown, the force applicator 307 may apply a force on the strip 103 causing the strip 103 to deflect and move into the gap 411 and toward the scoring device 427 , thereby increasing stress within the strip 103 .

[0067] refer to Figure 4, the first support member 301, the second support member 303 and the force applicator 307 can form a three-point bend in the belt 103. That is, by applying a force to the belt 103 at the first side 405, the first support member 301 and the second support member 303 can each serve as a support roller. The force applicator 307 can serve as a loading roller by applying a force (or load) to the belt 103 at the second side 407 at an intermediate position 501 between the first support member 301 and the second support member 303. The force applicator 307 can selectively engage with the belt 103 to form a three-point bend (e.g., Figure 4 ) and disengagement from the belt 103 (e.g., as Figure 3 As used herein, the term "engagement" (e.g., engagement, engagement, etc.) may include contact between the force applicator 307 and the belt 103, such as when the force applicator 307 comprises a roller, such that the force applicator 307 applies force to the belt 103 by contacting the belt 103. Alternatively, the term "engagement" may include the force applicator 307 applying force to the belt 103 without contacting the belt 103, such as when the force applicator 307 comprises an air bearing, a fluid jet nozzle, etc., such that they apply force without contacting the belt 103. When the force applicator 307 engages the belt 103 (e.g., forming a three-point bend), the force applicator 307 may generate a stress distribution on the belt 103, such as creating a localized area of ​​increased stress on the belt 103 in a direction orthogonal to the direction of travel 403. This stress distribution may be used to propagate a crack created by the scribing device 427. That is, when the ribbon 103 is bent (eg, three-point bent) and a stress distribution is generated, the scoring device 427 can engage the first side 405 of the ribbon 103 to initiate a crack, so that the crack can propagate through the ribbon 103 to separate the ribbon 103 into separate ribbon portions.

[0068] When the first support member 301, the second support member 303, and / or the force applicator 307 comprise rollers, the rollers can comprise, for example, a diameter in the range of about 5 mm to about 30 mm, or about 20 mm. In some aspects, the distance 413 between the first support member 301 and the second support member 303 can be in the range of about 30 mm to about 50 mm, or about 42 mm. In some aspects, the distance separating the central axis 416 of the force applicator 307 from the central axis of the first support member 301 and / or the central axis of the second support member 303 along the x-axis can be in the range of about 15 mm to about 25 mm, or about 21 mm. In this manner, in some aspects, the force applicator 307 can be located midway between the first support member 301 and the second support member 303 (e.g., a first distance separating the force applicator 307 from the first support member 301 is substantially equal to a second distance separating the force applicator 307 from the second support member 303). In some aspects, when support members 301, 303 and / or force applicator 307 comprise rollers, the rollers can include a non-tapered shape along the length of the rollers. Alternatively, the rollers can include a tapered shape to adjust the stress distribution during three-point bending, wherein the opposite ends of the rollers include tapered shapes whose diameters gradually decrease relative to the center of the rollers. Tapering the ends of the rollers can reduce deflection at the edges of the belt 103 and provide more uniform stress across the belt 103, which can reduce the likelihood of defects forming due to greater-than-desired stress. In some aspects, when support members 301, 303 and / or force applicator 307 comprise tapered rollers (e.g., rollers with tapered ends), the rollers can include a central non-tapered section having a central diameter of approximately 10 mm, wherein the ends gradually taper to a minimum diameter of approximately 7.5 mm to approximately 9.5 mm, or approximately 8 mm or approximately 9 mm. In this example, the length of the central non-tapered section can range, for example, from approximately 250 mm to approximately 450 mm, or approximately 300 mm or approximately 400 mm.

[0069] Figure 5 Shown along Figure 3 5 (e.g., along the x-axis) shows the position of the scribing device 427 relative to the ribbon 103. In some aspects, the scribing device 427 can be moved between a plurality of positions, such as a first position 601, a second position 603, a third position 605, and a fourth position 607, as part of the crack initiation process. The three positions (e.g., the first position 601, the third position 605, and the fourth position 607) are shown in dashed lines because the scribing device 427 can only occupy one position at a time. Thus, Figure 5 The marking device 427 is shown in the second position 603 , while the other positions 601 , 605 , 607 are shown in dashed lines to indicate positions where the marking device 427 may be located when not in the second position 603 .

[0070] Initially, the scoring device 427 can be in a first position 601, wherein the scoring device 427 is spaced a distance from the belt 103. That is, when the belt 103 moves along a direction of travel (e.g., along the x-axis), and when the scoring device 427 does not initiate a crack, a distance along the z-axis can separate the scoring device 427 from the belt 103. In some aspects, in the first position 601, the scoring device 427 can be located within the footprint of the belt 103 such that an axis 609 extending along and parallel to the z-axis can intersect the belt 103 and the scoring device 427 at the first position 601. In some aspects, the axis 609 is located a separation distance 611 from an edge 613 of the belt 103.

[0071] To induce a flaw in the strip 103, the scoring device 427 can be moved from the first position 601 to the second position 603 in a first movement direction 615. The scoring device 427 can move along both the z-axis and the y-axis while moving in the first movement direction 615. For example, while moving along the z-axis in the first movement direction 615, the distance between the scoring device 427 and the strip 103 can decrease until the scoring device 427 reaches the second position 603, at which point the scoring device 427 can engage the strip 103.

[0072] In this manner, when the scoring device 427 is in the first position 601, the distance separating the scoring device 427 from the tape 103 is greater than the distance when the scoring device 427 is in the second position 603. In some aspects, when the scoring device 427 includes a device that contacts the tape 103 to initiate the flaw (e.g., a scriber 617 including a tip 619, a wheel, etc.), then when the scoring device 427 is in the second position 603, the distance separating the scoring device 427 from the tape 103 can be zero because the scoring device 427 contacts the tape 103. However, in some aspects, the scoring device 427 can initiate the flaw without contacting the tape 103, such as when the scoring device 427 includes a laser that directs a laser beam toward the tape, or when the scoring device 427 includes a nozzle that directs a fluid toward the tape. In these examples, the scoring device 427 may still be spaced a distance from the belt 103 when the scoring device 427 is in the second position 603 , however, in some aspects, the distance may be smaller than when the scoring device 427 is in the first position 601 .

[0073] In some aspects, when moving in the first movement direction 615 along the y-axis, the separation distance 611 can decrease as the scoring device 427 moves closer to the edge 613 of the belt 103. In this manner, when the scoring device 427 is in the first position 601, the separation distance 611 separating the scoring device 427 from the edge 613 is greater than when the scoring device 427 is in the second position 603.

[0074] In some aspects, once the scribing device 427 engages or contacts the tape 103 in the second position 603, the separation distance 611 (e.g., between the scribing device 427 and the edge 613) can be in a range from about 2 mm to about 14 mm, or about 10 mm. In this manner, as the scribing device 427 moves along the y-axis, the distance the scribing device 427 contacts the tape 103 can be between about 2 mm and about 14 mm, or about 10 mm. When in the second position 603, the scribing device 427 can engage the tape 103 by either contacting the tape 103 or not. For example, when contacting the tape 103, the scribing device 427 can include a scriber 617 including a tip 619 that contacts the tape 103. When in contact with the belt 103, the scribing device 427 can be moved relative to the belt 103 in a second direction of movement 623 (e.g., a propagation direction) that is transverse to the direction of travel 403 of the belt 103 along the travel path 401 (e.g., in and out). Figure 5 ). The second direction of movement can be along the y-axis toward the edge 613. In this manner, the tip 619 can maintain contact with the belt 103 as the scribing device 427 moves toward the edge 613 in the second direction of movement 623. The contact between the tip 619 and the belt 103 can create a flaw in the first side 405 of the belt 103. Alternatively, contact between the scribing device 427 and the belt 103 can occur when the scribing device 427 includes a wheel including a circumferential edge that contacts the belt 103 and moves relative to the belt 103 in the second direction of movement 623 (e.g., the propagation direction) as the wheel rotates.

[0075] Thus, the method may include engaging the tape 103 by moving the scoring device 427 between a first position 601, where the scoring device 427 is not in contact with the tape 103, and a second position 603, where the scoring device 427 is in contact with the tape 103 and moving in a propagation direction or second direction of movement 623. In this manner, engaging the tape 103 may include contacting the tape 103 with the scoring device 427 and moving the scoring device 427 in the second direction of movement 623, wherein the scoring device 427 moves in the second direction of movement 623 (e.g., the propagation direction) at an average speed in a range from about 500 mm / s to about 1500 mm / s or about 1090 mm / s while the scoring device 427 is in contact with the tape 103. However, this range (e.g., from about 500 mm / s to about 1500 mm / s) is not intended to be limiting, and other ranges are contemplated, for example, if the tape 103 is thicker and moves more slowly. Alternatively, in the second position 603, the scoring device 427 can engage the ribbon 103 without contacting it. For example, the scoring device 427 can include a laser that directs a laser beam toward the ribbon 103, where the laser beam strikes the ribbon 103 to initiate the crack. In this example, the laser beam can be moved relative to the ribbon 103 in a second direction of movement 623 (e.g., a propagation direction). In other aspects, the scoring device 427 can include a nozzle that directs a fluid toward the ribbon, where the fluid strikes the ribbon 103 to initiate the crack. In this example, the fluid can be moved relative to the ribbon 103 in a second direction of movement 623 (e.g., a propagation direction). Because the edge bead has an increased thickness compared to the center of the ribbon 103, the edge bead includes an area of ​​maximum stress, and therefore, the crack may be generated in the edge bead or edge portion of the ribbon 103.

[0076] The marking device 427 can continue to move from the second position 603 to the third position 605 in the second movement direction 623. In some aspects, when the marking device 427 is in the third position 605, the marking device 427 can no longer engage or contact the belt 103. For example, in the third position 605, the marking device 427 can be located outside the footprint of the belt 103 such that an axis 629 extending along and parallel to the z-axis (e.g., parallel to the axis 609) intersects the marking device 427 and does not intersect the belt 103. To return from the third position 605 to the first position 601, the marking device 427 can first move from the third position 605 to the fourth position 607 in the third movement direction 631 (e.g., parallel to the z-axis and along the axis 629). The marking device 427 can then move from the fourth position 607 to the first position 601 in the fourth movement direction 633 (e.g., parallel to the y-axis). After reaching the first position 601, the scoring device 427 may then selectively repeat the process of engaging the strip 103 and initiating a rupture.

[0077] Marking device 427 Figure 5 The movement between the illustrated positions 601, 603, 605, and 607 can yield several benefits. For example, initially, the marking device 427 is in the first position 601, spaced a distance from the belt 103. This prevents the marking device 427 from inadvertently contacting the belt 103. While moving from the first position 601 to the second position 603 in the first movement direction 615, the marking device 427 can continue to move along the y-axis for a period of time. This movement along the y-axis allows the marking device 427 time to move from a stationary position to a desired speed upon reaching the second position 603. In some aspects, the marking device 427 may not stop upon reaching the second position 603, but may continue to move in the second movement direction 623 upon reaching the second position 603. Thus, upon reaching the second position 603, the marking device 427 can be at a desired speed, with the marking device 427 continuing to move at an average speed ranging from approximately 500 mm / s to approximately 1500 mm / s while engaging the belt 103. Furthermore, because the marking device 427 continues to move in the second direction of movement 623 toward the third position 605 even after the marking device 427 no longer engages the belt 103 (e.g., when the marking device 427 is outside the footprint of the belt 103), the speed of the marking device 427 can be decelerated to zero or near zero upon reaching the third position 605. In this manner, movement of the marking device 427 between the illustrated positions 601, 603, 605, 607 provides time for the marking device 427 to increase and decrease in speed.

[0078] The marking device 427 is not limited to Figure 5 605, 607. Conversely, in some aspects, the scoring device 427 can be moved between none, some, or all of those positions 601, 603, 605, 607. For example, in some aspects, when the scoring device 427 comprises a laser or a nozzle, such that the scoring device 427 does not contact the tape 103, the scoring device 427 can remain in a single position, such as the second position 603, in which the scoring device 427 can be rotated to direct the laser beam or fluid toward the tape 103. In this way, the scoring device 427 can engage the tape 103 while remaining in a single position and without contacting the tape 103.

[0079] Figure 6-9 Shown in a first position (e.g., Figure 6 ) and the second position (e.g., Figure 8 ) between the cam assembly 311 of the force applicator 307. For example, referring to Figure 6, shaft 313 (e.g., shown in dashed lines) can be attached to mobile member 315. In some aspects, shaft 313 and mobile member 315 can include circular cross-sectional shapes, although other shapes are also contemplated (e.g., square, oval, etc.). The attachment of shaft 313 to mobile member 315 allows shaft 313 to transmit rotation to mobile member 315. For example, shaft 313 can rotate in rotational direction 701, which can cause mobile member 315 to likewise rotate in rotational direction 701.

[0080] The link member 317 can be attached to the mobile member 315, for example, at a first attachment location 703. In some aspects, the first attachment location 703 can be located toward the periphery of the mobile member 315 or toward its radially outward side. The link member 317 can be pivotally attached to the mobile member 315 such that the link member 317 can pivot relative to the mobile member 315 at the first attachment location 703. The link member 317 can be attached to the mobile member 315 in a variety of ways, for example, using mechanical fasteners (such as screws, bolts), or other structures that allow the link member 317 to pivot and move relative to the mobile member 315. In some aspects, the link member 317 can include an elongated rectangular structure extending between a first end (e.g., which is attached to the mobile member 315) and an opposite second end (e.g., which can be attached to the translating member 319). In some aspects, the link member 317 can be pivotally attached to the translating member 319, for example, at the second attachment location 705. The link member 317 can pivot relative to the translating member 319 at the second attachment location 705. The link member 317 can be attached to the translating member 319 in a variety of ways, for example, using mechanical fasteners such as screws, bolts, or other structures that allow the link member 317 and the translating member 319 to pivot and rotate relative to each other.

[0081] In some aspects, the translating member 319 can include an elongated rectangular structure extending between a first end (e.g., which is attached to the link member 317) and an opposite second end (e.g., which can be attached to the force applicator 307). Movement of the translating member 319 can cause the force applicator 307 to move in a first position (e.g., Figure 6 ) and the second position (e.g., Figure 8 103). For example, in the first position, the force applicator 307 can be spaced a distance from the belt 103 so that the force applicator 307 does not contact the belt 103 and does not apply force to the belt 103. In some aspects, the force applicator 307 can remain in the first position during the period when the belt 103 is not separated. When the belt 103 is to be separated, the force applicator 307 can be moved from the first position to the second position.

[0082] refer to Figure 6-7To begin the process of separating the belt 103, the cam assembly 311 may rotate and cause the force applicator 307 to move from the first position to the intermediate position (eg, Figure 7 For example, refer to Figure 7 , the shaft 313 can rotate in the rotational direction 701, which can cause the moving member 315 to rotate in the rotational direction 701. The rotation of the moving member 315 can cause the link member 317 to pivot relative to the moving member 315 and move downward (e.g., in the z-direction) and toward the belt 103. This downward movement of the link member 317 can cause the translating member 319 and the force applicator 307 to move downward (e.g., in the z-direction) and toward the belt 103.

[0083] refer to Figure 7-8 , the shaft 313 can continue to rotate at least until the force applicator 307 has been Figure 7 Move down to the middle position of Figure 8 For example, in the second position, the force applicator 307 can contact the belt 103 and apply a force to the belt in the z direction. Figure 8 As shown in FIG, the force applied to the belt 103 by the force applicator 307 can cause the belt 103 to move toward the gap 411. When the force applicator 307 contacts the second side 407 of the belt 103, the scoring device 427 can engage and contact the first side 405 of the belt 103 in the same manner as described with respect to FIG. Figure 3-5 411. The force applicator 307 is similar to that described above. In this manner, the force applicator 307 is attached to the cam assembly 311, and the cam assembly 311 can be rotated to move the force applicator 307 between a first position in which the force applicator 307 is spaced apart from and not in contact with the belt 103, and a second position in which the force applicator 307 is in contact with the belt 103 and the belt 103 is moved toward the gap 411. Thus, the method can include applying a force from the force applicator 307 to the belt 103 by moving the force applicator 307 between the first position and the second position. In some aspects, initiating a crack can include applying a force from the force applicator 307 to the belt 103 at an intermediate position while the scoring device 427 engages the belt 103 to form the crack, so as to move the belt 103 toward the scoring device 427. In some aspects, the total time that the force applicator 307 and the scoring device 427 are simultaneously engaged with the belt 103 (e.g., in contact with the belt 103) ranges from about 50 milliseconds to about 150 milliseconds or about 100 milliseconds. In some aspects, the force applicator 307 can be in the fully extended second position for less than about 0.3 seconds, such as in a range from about 0.2 seconds to about 0.3 seconds.

[0084] like Figure 9As shown in FIG, after the belt 103 is engaged with the force applicator 307 and the marking device 427, the belt 103 can be separated into the first belt portion 1001 and the second belt portion 1003. The shaft 313 can continue to rotate to return the force applicator 307 from the second position to the first position. For example, Figure 9 The force applicator 307 is shown in an intermediate position between the first position and the second position. As the shaft 313 rotates in the rotational direction 701, the moving member 315 may also rotate in the rotational direction 701, which may cause the link member 317, the translating member 319, and the force applicator 307 to move upward (e.g., in the z-direction) away from the belt 103. The shaft 313 may continue to rotate at least until the force applicator 307 has returned to the first position (e.g., Figure 6 ). In some aspects, the cam assembly 311 can be used to move the force applicator 307 between the first position and the second position while minimizing machine vibration, which improves accuracy and quality during the separation process.

[0085] Figure 10 Shown when the force applicator 307 is in the second position (e.g., also Figure 8 ) and the marking device 427 is in the second position (e.g., also in Figure 5 and Figure 8 603) shown in the second position, along Figure 4 10-10. As shown, as the force applicator 307 and the scoring device 427 engage the tape 103, the scoring device 427 can initiate a crack 1101 in the tape 103. The crack 1101 can be formed in the first side 405 of the tape 103. Figure 10-11 The method may include separating the tape 103 into a first tape portion 1001 and a second tape portion 1003 by propagating a crack 1101 through the tape 103 in a propagation direction 1201 transverse to the direction of travel 403. For example, Figure 10 , the scoring device 427 can be moved from the second position 603 to the third position 605 in the second movement direction 623. The movement of the scoring device 427 relative to the strip 103 can initiate and form the crack 1101. In some aspects, the central axis 416 along which the force applicator 307 extends is substantially parallel to the second movement direction 623, and the scoring device 427 moves in the direction when engaging the strip 103. In this way, a stress distribution in the strip 103 is generated parallel to the central axis 416 and the second movement direction 623, so that when the crack 1101 is formed, the crack 1101 has a propagation direction 1201 that is substantially parallel to the central axis 416 and the second movement direction 623 (e.g., as shown in FIG. 1 ). Figure 11 shown) on the spread.

[0086] Figure 11The result of the crack 1101 propagation is shown, with the force applicator 307 omitted from view so as not to obscure the illustration of the gap 1200 between the belt portions 1001, 1003. Figure 11 , a crack 1101 can propagate through the tape 103 along a separation path 151 in a propagation direction 1201, which can cause the tape 103 to separate into a first tape portion 1001 and a second tape portion 1003. Due to the alignment of the force applicator 307 and the scoring device 427 (e.g., the central axis 416, the second movement direction 623, the separation path 151, and the propagation direction 1201 are parallel to one another), the tape portions 1001, 1003 can separate along a separation path 151 that is substantially orthogonal to the direction of travel 403 of the tape 103.

[0087] The web separation device 149 provides several benefits related to separating the web 103 into the web portions 1001, 1003. For example, as the web 103 moves in the direction of travel 403, the web separation device 149 can create a three-point bend in the web 103, wherein the three-point bend creates a stress distribution on the web 103. While the three-point bend is being formed to create the stress distribution, the scoring device 427 can initiate a crack 1101, which can then propagate through the web 103 to separate the web 103 into the web portions 1001, 1003. In this way, because separation can occur while the web 103 is moving, an offline sheeting process may not be required, which can reduce the sheet separation cycle time by up to 70% (e.g., 3.5 seconds per sheet versus 12 seconds per sheet). Furthermore, when support members 301, 303 and force applicator 307 comprise rollers, support members 301, 303 and force applicator 307 can rotate at a speed that substantially matches, or is within approximately 10% of, the speed at which tape 103 moves along the travel path in travel direction 403. In this manner, support members 301, 303 and force applicator 307 can function to not impede the conveyance of tape 103 when forming a three-point bend. In some aspects, to further improve the conveyance of tape 103, second support member 303 can rotate at a faster speed than first support member 301, so that after separating tape 103 into tape portions 1001, 1003, the ends of tape portions 1001, 1003 may not inadvertently contact each other and pull the recently separated tape portion away from tape 103. Furthermore, separation of tape portions 1001, 1003 can occur with minimal particle generation while producing tape portions with high-quality edges.

[0088] It will be appreciated that although various aspects have been described in detail with respect to certain illustrative and specific examples of the disclosure, the disclosure should not be considered limited thereto since many modifications and combinations of the disclosed features are possible without departing from the scope of the appended claims.

Claims

1. A method for separating a tape, the method comprising: moving the belt along a travel path in a direction of travel; supporting the belt using a first support member and a second support member positioned on a first side of the path of travel, the first support member applying a first force to the belt at a first location of the path of travel, and the second support member applying a second force to the belt at a second location of the path of travel downstream from the first location relative to the direction of travel, wherein the first location is separated from the second location by a distance of less than about 100 millimeters; inducing a crack in the belt at an intermediate position of the path of travel between the first position and the second position as the belt moves in the direction of travel; as well as The tape is separated into a first tape portion and a second tape portion by propagating the crack through the tape in a propagation direction transverse to the direction of travel.

2. The method of claim 1 , wherein one or more of the first support member or the second support member comprises a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in the travel direction.

3. The method of claim 1, wherein one or more of the first support member or the second support member comprises an air bearing that supports the belt.

4. The method of any one of claims 1-3, wherein said initiating said rupture comprises contacting said tape with a scoring device.

5. The method of claim 4, wherein said initiating said rupture further comprises applying a third force from a force applicator to said tape at said intermediate location to move said tape toward said scoring device.

6. The method of claim 5, wherein applying the third force from the force applicator to the belt comprises moving the force applicator between a first position in which the force applicator is not in contact with the belt and a second position in which the force applicator is in contact with the belt.

7. A method for separating a tape, the method comprising: moving the belt along a travel path in a direction of travel; supporting the belt on a first side of the belt using first and second support members, the first and second support members being spaced apart to form a gap therebetween; While the belt is moving in the direction of travel, a crack is induced in the belt by: engaging the first side of the tape within the gap using a scoring device; as well as applying a force to the second side of the belt using a force applicator, the scoring device being aligned with the force applicator such that the rip is formed in the belt between the scoring device and the force applicator and between the first support member and the second support member; The tape is separated into a first tape portion and a second tape portion by propagating the crack through the tape in a propagation direction transverse to the direction of travel.

8. The method of claim 7, wherein one or more of the first support member or the second support member comprises a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in the travel direction.

9. The method of any one of claims 7-8, wherein engaging the belt comprises contacting the belt with the scoring device and moving the scoring device in the propagation direction at an average speed in the propagation direction in the range from about 500 mm / s to about 1500 mm / s while the scoring device is in contact with the belt.

10. The method of claim 9, wherein said engaging said belt comprises moving said scoring device between a non-contact position in which said scoring device is not in contact with said belt and a contact position in which said scoring device is in contact with said belt and moving in said direction of propagation.

11. The method of claim 10, wherein applying the force from the force applicator to the belt comprises moving the force applicator between a first position in which the force applicator is not in contact with the belt and a second position in which the force applicator is in contact with the belt.

12. The method of claim 11, wherein the scoring device and the force applicator are in contact with the belt simultaneously.

13. The method of claim 7, wherein the tape comprises a thickness in a range from about 25 microns to about 250 microns.

14. A belt separation device, comprising: a first support member positioned on a first side of a travel path along which the belt travels, the first support member configured to apply a first force to the belt at a first location on the travel path; a second support member spaced from the first support member to form a gap therebetween, the second support member configured to apply a second force to the belt at a second location in the path of travel, wherein the distance separating the first location from the second location is less than about 100 millimeters; a force applicator positioned on a second side of the path of travel and aligned with the gap, the force applicator configured to move the belt toward the gap; as well as A scoring device is positioned within the gap and aligned with the force applicator, the scoring device being configured to engage the tape and induce a flaw in the tape while the tape is moved toward the gap.

15. The belt separation device of claim 14 , wherein the force applicator is attached to a cam assembly, the cam assembly being configured to rotate to move the force applicator between a first position in which the force applicator is not in contact with the belt and a second position in which the force applicator is in contact with the belt and the belt moves toward the gap.

16. The belt separator of claim 14, wherein one or more of the first support member or the second support member comprises a roller that rotates at a rotational speed within about 10% of a travel speed of the belt moving along the travel path in a travel direction.

17. The tape separation device of claim 14, wherein one or more of the first support member or the second support member comprises an air bearing.

18. The tape separation device of any one of claims 14 to 17, wherein the scoring device engages the tape by contacting the tape, and the scoring device comprises one or more of the following: a scriber comprising a tip that contacts the tape and moves relative to the tape in a direction of propagation transverse to the direction of travel of the tape along the path of travel; or A wheel includes a circumferential edge that contacts the belt and moves relative to the belt in the direction of travel while the wheel rotates.

19. The tape separation device of any one of claims 14 to 17, wherein the scoring device engages the tape without contacting the tape, and the scoring device comprises one or more of the following: a laser that directs a laser beam toward the ribbon, the laser beam striking the ribbon to initiate the crack; or A nozzle directs a fluid toward the strip, the fluid impinging on the strip to initiate the rupture.

20. The tape separator of any one of claims 14-17, wherein the distance separating the first position from the second position is in the range of from about 40 mm to about 60 mm.

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