Glass substrate cutting device, cutting equipment and cutting method

Abstract

The invention relates to a glass substrate cutting device, equipment and method.The glass substrate cutting device comprises a cutting board mechanism, the cutting board mechanism comprises an elastic cutting board strip and a first supporting base, and the elastic cutting board strip is provided with stress points for equally dividing the length of the elastic cutting board strip; the scribing mechanism comprises an elastic track strip, a second supporting seat and a cutter assembly, the elastic track strip is provided with stress points for equally dividing the length of the elastic track strip, and the first supporting seat and the second supporting seat are the same in structure, are arranged in a mirror symmetry mode and comprise a supporting cross beam and two movable arms; the curved surface adjusting mechanism comprises a driving assembly fixed to the supporting cross beam and a transmission rod which penetrates through the supporting cross beam and extends to be connected to a stress point, so that the elastic cutting board strip and the elastic track strip have initial positions and deformation positions, the elastic cutting board strip and the elastic track strip are arranged parallel to the supporting cross beam at the initial positions, and the elastic cutting board strip and the elastic track strip are arranged parallel to the supporting cross beam at the deformation positions. The driving assembly drives the transmission rod to move so as to drive the force bearing points to move towards or away from the glass substrate, so that the cutting device is provided with an anvil face and a rail face which are matched with the annealing curvature of the glass substrate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of glass substrate scribing and cutting, and in particular, to a glass substrate cutting device, a cutting equipment and a cutting method. Background Art

[0002] In the production of optoelectronic display glass substrates, such as OLED and LTPS glass substrates, and ultra-thin flexible glass substrates with a thickness of less than 0.1mm, the molten glass material must first be overflowed from top to bottom and pulled down to form a plate. After forming, it is cut into single pieces using cutting equipment, and then the subsequent processes are carried out.

[0003] When cutting a single piece of glass, the anvil needs to be attached to one side of the glass ribbon, so as to provide scribing and breaking support for the scribing wheel and the robot. However, when the glass ribbon is annealed, it will present a certain annealing curvature. In the current existing technology, the anvil surface is in a straight state, which causes the anvil surface to be incompatible with the curved surface of the glass substrate. In this way, when the cutting knife is pressed against the glass substrate to scribble, the glass substrate will deform. After the board is broken, the glass substrate can only rely on inertia to restore the curved surface state, but this recovery process is uncontrollable. Unlike cold cutting, slight changes in the shape of the glass substrate during hot cutting will affect the annealing quality of the glass substrate, resulting in a decrease in the yield rate. In addition, the current market demand for glass substrates of different sizes and thicknesses is increasing, and the glass substrates need to be frequently changed. The annealing curvature corresponding to each glass substrate is different, which undoubtedly increases the difficulty of matching the shape of the cutting equipment and the glass substrate. Summary of the invention

[0004] The purpose of the present disclosure is to provide a glass substrate cutting device that can quickly and accurately match the shapes of different glass substrates.

[0005] In order to achieve the above object, the present disclosure provides a glass substrate cutting device, comprising:

[0006] The chopping board mechanism comprises an elastic chopping board strip and a first support seat, wherein the inner plate surface of the elastic chopping board strip is provided with a plurality of force points, and the plurality of force points divide the length of the elastic chopping board strip into equal parts;

[0007] The marking mechanism comprises an elastic track bar, a second support seat and a cutting knife assembly slidably connected to the elastic track bar, the inner side surface of the elastic track bar is also provided with a plurality of force points corresponding to the elastic anvil strip, and the plurality of force points divide the length of the elastic track bar into equal parts, the first support seat and the second support seat have the same structure and are arranged in a mirror-symmetrical manner, and comprise a supporting crossbeam and two movable arms rotatably connected to the two ends of the supporting crossbeam;

[0008] A plurality of curved surface adjustment mechanisms are divided into two groups and are arranged on the anvil mechanism and the scribing mechanism in mirror symmetry. Each of the curved surface adjustment mechanisms includes a driving assembly and a transmission rod. The driving assembly is fixed to the supporting crossbeam. The transmission rod vertically passes through the supporting crossbeam and extends to the force point, so that the elastic anvil strip and the elastic track strip have an initial position and a deformation position.

[0009] In the initial position, the elastic anvil strip and the elastic track strip are both arranged parallel to the supporting crossbeam, and the movable arm vertically supports the elastic anvil strip and the elastic track strip. In the deformation position, the driving assembly drives the transmission rod to move to drive each of the force points to move toward or away from the glass substrate, and at the same time drives the two movable arms to gather inward respectively, so that the elastic anvil strip and the elastic track strip respectively form an anvil surface and a track surface that are compatible with the annealing curvature of the glass substrate.

[0010] Optionally, one end of the movable arm is connected to the supporting beam via a fixed axis, and the other end is connected to the elastic anvil strip via a rotating axis. In the initial position, the movable arm is vertically connected between the supporting beam and the elastic anvil strip. In the deformation position, the elastic anvil strip drives the movable arm to rotate around the fixed axis via the rotating axis.

[0011] Optionally, the drive assembly includes a drive motor and a transmission gear set, the transmission gear set includes a driving gear connected to the output shaft of the drive motor, a driven gear matched with the driving gear, and a gear rack, the drive motor is fixed to the upper surface of the support beam, the gear rack is fixed to the inner side surface of the support beam, the driven gear is respectively in contact with the support beam and the gear rack and its axial hole is configured as a threaded hole, the support beam and the gear rack are both provided with a through hole for the transmission rod to pass through, the transmission rod is configured as a lead screw matched with the threaded hole, and the lead screw passes through the support beam, the driven gear and the gear rack in sequence to be connected to the force point.

[0012] Optionally, limiting protrusions are respectively provided on both sides of the driven gear along the axial direction, and the limiting protrusions on both sides are respectively in contact with the inner side surface of the supporting beam and the gear frame.

[0013] Optionally, a displacement sensor is provided on a side of the gear rack facing the glass substrate.

[0014] Optionally, several of the force points include edge force points and central force points, and a connecting head is provided at the end of the transmission rod, which includes a first connecting head connected to the central force point and a second connecting head connected to the edge force point, the first connecting head is constructed as a square head, and the second connecting head is constructed as a round head, and each of the force points is provided with a C-shaped square head with an opening facing the transmission rod, and the connecting head is installed to the C-shaped square head through a pin shaft, wherein the pin hole on the first connecting head and the pin shaft are interference fit, and the pin hole on the second connecting head and the pin shaft are clearance fit.

[0015] Optionally, the cutting knife assembly includes a cutting knife, a knife holder and a sliding member that slidably cooperates with the elastic track bar, the knife holder is constructed as a C-shaped plate with an opening toward the elastic track bar, and has an upper support plate, a lower support plate and a side plate, the cutting knife is connected to the side plate via a clamping member, the sliding member is constructed as a tooth column and can be rotatably connected between the upper support plate and the lower support plate, and the outer side surface of the elastic track bar is constructed as a tooth surface that cooperates with the tooth column.

[0016] Optionally, the upper support plate and the lower support plate are also provided with guide wheels respectively, and the upper surface and the lower surface of the elastic track bar are respectively provided with guide wheel grooves matching with the guide wheels.

[0017] Optionally, it also includes a translation unit, which includes a U-shaped mounting frame, a guide rail mechanism and a linear drive mechanism, the U-shaped mounting frame includes a horizontal frame and a vertical frame connected on both sides of the horizontal frame, the guide rail mechanism includes a guide rail installed on the vertical frame and a slider sliding linearly along the guide rail, the slider and the supporting beam are connected by a connecting rod, and the linear drive mechanism is consistent with the structure of the curved surface adjustment mechanism to drive the anvil mechanism to move along the guide rail toward or away from the glass substrate.

[0018] According to another aspect of the present disclosure, a glass substrate cutting device is further provided, comprising the glass substrate cutting device disclosed above, and further comprising:

[0019] A curved surface detection device, located on the side of the glass substrate, for detecting an initial value of the curved surface of the glass substrate at a position to be cut;

[0020] A control device is respectively communicated with the curvature detection device and the curvature adjustment mechanism to receive the initial curvature value detected by the curvature detection device; and is used to control the movement of the transmission rod in the curvature adjustment mechanism according to the initial curvature value to adjust the elastic anvil strip and the elastic track strip from the initial position to the deformed position respectively; and during the process of the force-bearing surface being marked by the cutting knife assembly, when the force-bearing surface produces curved wrinkles, the control device controls the curved adjustment mechanism according to the position of the curved wrinkles before the next marking to selectively drive one or more of the several force points to move and compensate.

[0021] According to another aspect of the present disclosure, a glass substrate cutting method is further provided, using the glass substrate cutting device disclosed above, comprising:

[0022] Detecting an initial value of the curvature of the force-bearing surface when the glass substrate reaches a position to be cut;

[0023] According to the initial value of the curvature, the elastic anvil strip and the elastic track strip are controlled to switch from an initial position to a deformed position;

[0024] Controlling the scribing mechanism to scribble the glass substrate through the cutting knife assembly, and during the scribing process, determining whether curved wrinkles are generated on the force-bearing surface;

[0025] When curved wrinkles are generated on the force-bearing surface, the curved surface adjustment mechanism is selectively controlled to drive one or more of the force-bearing points to perform movement compensation before the next marking according to the position of the curved wrinkles.

[0026] Through the above technical scheme, the anvil mechanism can actively adjust according to the annealing curvature of different glass substrates to form an anvil surface adapted thereto, so that there is no gap or the gap is very small between the elastic anvil strip and the glass substrate, thereby providing good support for subsequent scribing, cutting and breaking; at the same time, the scribing mechanism can also actively adjust the shape of the track surface to limit the movement trajectory of the cutting knife assembly, so as to ensure that the direction in which the force applied by the cutting knife assembly is always perpendicular to the cutting surface during cutting, so as to achieve more stable cutting, reduce or avoid changes in the curvature of the glass substrate, and improve the yield rate of the glass substrate.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0029] Figure 1 is an isometric schematic diagram of a glass substrate cutting device provided according to a specific embodiment of the present disclosure (the translation device is not shown);

[0030] Figure 2 is a structural schematic diagram of a glass substrate cutting device provided according to a specific embodiment of the present disclosure;

[0031] Figure 3 is a structural schematic diagram of a cutting board mechanism provided according to a specific embodiment of the present disclosure;

[0032] Figure 4 is a schematic diagram of a curved surface adjustment mechanism provided according to a specific embodiment of the present disclosure;

[0033] Figure 5 is a structural schematic diagram of a cutting knife assembly provided according to a specific embodiment of the present disclosure;

[0034] Figure 6 It is a schematic diagram of a cutting knife pressing a glass substrate against a cutting board to draw a line in the prior art;

[0035] Figure 7 It is a flow chart of a glass substrate cutting method provided according to a specific embodiment of the present disclosure.

[0036] Description of Reference Numerals

[0037] 1-chopping board mechanism, 11-elastic chopping board strip, 112-pin shaft, 2-marking mechanism, 21-elastic track strip, 211-guide wheel groove, 22-cutting knife assembly, 221-cutting knife, 222-knife holder, 2221-upper support plate, 2222-lower support plate, 2223-side plate, 223-sliding member, 224-pressing member, 225-guide wheel, 226-bracket, 3-curved surface adjustment mechanism, 31-driving assembly, 311-driving motor, 312-driving gear, 313-driven gear, 3 14-gear rack, 32-transmission rod, 321-first connecting head, 322-second connecting head, 33-displacement sensor, 4-translation unit, 41-U-shaped mounting frame, 411-horizontal frame, 412-vertical frame, 42-guide rail mechanism, 421-guide rail, 422-slider, 43-linear drive mechanism, 44-connecting rod, 100-supporting beam, 200-movable arm, 300-glass substrate, 400-C-shaped square head, 500-curved surface detection device, 101-fixed axis, 201-rotating axis. DETAILED DESCRIPTION

[0038] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0039] In this disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to Figure 5 The top and bottom, "inside and outside" shown in the drawings are usually defined according to the rectangular space below, the inside of the space is the inside, and the outside is outside the space. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not represent order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. It can be understood by those skilled in the art that the above definitions are only used to explain and illustrate the present disclosure and are not used to limit it.

[0040] refer to Figure 6 As shown, the anvil surface of the anvil board 10 in the prior art is a plane. Since the glass substrate 30 produced from the glass kiln has an annealing curvature after annealing in the annealing furnace, there is a gap between the glass substrate 30 and the anvil board 10. In this way, when the cutting knife 20 presses on the anvil surface to draw a line, the glass substrate 30 will be wrinkled and deformed, which will affect the performance of the glass substrate 30 and reduce the yield rate. Therefore, the present disclosure provides a glass substrate cutting device that can quickly and accurately adapt to the annealing curvature of the glass substrate and improve the yield rate.

[0041] According to a specific embodiment of the present disclosure, a glass substrate cutting device is provided. Figures 1 to 5 One embodiment is shown. Figures 1 to 5 As shown, the glass substrate cutting device includes an anvil mechanism 1, a scribing mechanism 2 and a plurality of curved surface adjustment mechanisms 3, wherein the anvil mechanism 1 includes an elastic anvil strip 11 and a first support seat, the inner plate surface of the elastic anvil strip 11 is provided with a plurality of force points, and the plurality of force points divide the length of the elastic anvil strip 11 into equal parts; the scribing mechanism 2 includes an elastic track strip 21, a second support seat and a cutting knife assembly 22 slidably connected to the elastic track strip 21, the inner side surface of the elastic track strip 21 corresponds to the elastic anvil strip 11 A plurality of stress points are also provided, and the plurality of stress points divide the length of the elastic track strip 21 into equal parts. The first support seat and the second support seat have the same structure and are arranged in a mirror-symmetrical manner, and include a support beam 100 and two movable arms 200 rotatably connected to both ends of the support beam 100, and the movable arms 200 are used to support the elastic anvil strip 11 and the elastic track strip 21; a plurality of curved surface adjustment mechanisms 3 are divided into two groups and are arranged in a mirror-symmetrical manner on the anvil mechanism 1 and the marking mechanism 2, specifically, with reference to Figure 1As shown, the anvil mechanism 1 and the scribing mechanism 2 are respectively provided with the same number of curved surface adjustment mechanisms 3, and each stress point is independently provided with a corresponding curved surface adjustment mechanism 3. Each curved surface adjustment mechanism 3 includes a driving assembly 31 and a transmission rod 32, wherein the driving assembly 31 is fixed to the supporting crossbeam 100, and the transmission rod 32 vertically passes through the supporting crossbeam 100 and extends to connect to the stress point, so that the elastic anvil strip 11 and the elastic track strip 21 have an initial position and a deformation position.

[0042] In the initial position, the elastic anvil strip 11 and the elastic track strip 21 are both arranged parallel to the supporting beam 100, and the movable arm 200 vertically supports the elastic anvil strip 11 and the elastic track strip 21. In the deformation position, the driving assembly 31 drives the transmission rod 32 to move to drive each of the force points to move toward or away from the glass substrate 300, and at the same time drives the two movable arms 200 to gather inward respectively, so that the elastic anvil strip 11 and the elastic track strip 21 respectively form an anvil surface and a track surface having an annealing curvature that is compatible with the glass substrate 300.

[0043] Through the above technical scheme, the anvil mechanism 1 can actively adjust according to the annealing curvature of the glass substrate 300 to form an anvil surface adapted thereto, so that there is no gap or a very small gap between the elastic anvil strip 11 and the glass substrate 300, which provides good support for subsequent scribing, cutting and breaking; at the same time, the scribing mechanism 2 can actively adjust the shape of the track surface according to the curvature of the anvil surface adjusted by the anvil mechanism 1 or also according to the annealing curvature of the glass substrate, to limit the movement trajectory of the cutting knife assembly 22, so as to ensure that the direction in which the force applied by the cutting knife assembly 22 is always perpendicular to the cutting surface during cutting, so as to achieve more stable cutting, reduce or avoid changes in the curvature of the glass substrate, and improve the yield rate of the glass substrate.

[0044] In addition, the glass substrate cutting device provided by the present disclosure can adapt to the shapes of different types of glass substrates, quickly and stably adjust the curvature of the elastic track strip 21 and the elastic anvil strip 11, and has strong versatility. Specifically, when the annealing curvature of the best glass substrate is obtained by the glass substrate cutting device disclosed in the present disclosure, the data can be recorded, so that each time according to different glass substrate production types, the corresponding cutting device data is imported, that is, the curvature of the glass substrate cutting device and the glass substrate can be matched instantly, and the change can be achieved in seconds and accurately, which greatly improves production efficiency and reduces trial and error time.

[0045] The glass substrate 300 may have a concave surface and a convex surface after annealing and bending. For the convenience of scribing and cutting, in the specific embodiment of the present disclosure, reference is made to Figure 1As shown, the anvil surface can be located on the concave side, and the cutting knife assembly 22 can be located on the convex side. The overall structures of the anvil mechanism 1 and the marking mechanism 2 are roughly the same, and the stress points of the two correspond one to one, and a separate curved surface adjustment mechanism 3 is independently set at each stress point. The driving mode and connection mode of the curved surface adjustment mechanism 3 in the anvil mechanism 1 and the marking mechanism 2 are consistent, which will not be described in detail.

[0046] The supporting crossbeam 100 is the main supporting component, and can be made of a profile with strong anti-deformation ability, such as an aluminum profile, a stainless steel square tube, etc. The movable arm 200 is responsible for further supporting the elastic anvil strip 11 and the elastic track strip 21 to adapt to the change of shape; and the elastic anvil strip 11 and the elastic track strip 21 can be made of elastic metal strips to adapt to the change of shape according to the annealing curvature. Among them, the width range of the elastic anvil strip 11 (the width direction at this time is defined relative to the horizontal length of the elastic anvil strip perpendicular to the elastic anvil strip) can also be understood as the upper and lower height can be 10-30mm, and the outer plate surface facing the glass substrate 300 can be provided with a high-temperature resistant rubber strip to directly contact the glass substrate 300. The width of the high-temperature resistant rubber strip is narrower than the elastic anvil strip 11, which can be 10-20mm. In the specific embodiment of the present disclosure, the outer plate surface of the elastic anvil strip 11 can be slotted and inlaid, and the present disclosure does not limit this.

[0047] refer to Figure 3 As shown, in a specific embodiment of the present disclosure, one end of the movable arm 200 is connected to the supporting beam 100 via a fixed axis 101, and the other end is connected to the elastic anvil strip 11 via a rotating axis 201. In the initial position, the movable arm 200 is vertically connected between the supporting beam 100 and the elastic anvil strip 11. In the deformation position, the elastic anvil strip 11 drives the movable arm 200 to rotate around the fixed axis 101 via the rotating axis 201.

[0048] Taking the anvil mechanism 1 as an example, in the initial position, the elastic anvil strip 11 is in the form of a straight strip, and together with the two movable arms 200 and the supporting crossbeam 100, it forms a rectangle; when the elastic anvil strip 11 undergoes curved surface deformation, the two movable arms 200 will gather toward the middle to adapt to the shape change of the elastic anvil strip 11. Similarly, in the scribing mechanism 2, when the elastic track strip 21 switches between the initial position and the deformed position, the movement of the movable arm 200 is consistent with the above, and no further description is given.

[0049] The driving assembly 31 and the transmission rod 32 can be constructed in any suitable manner. Since the curved surface of the glass substrate 300 is relatively small, the moving range of the transmission rod 32 is also relatively small. Figure 4As shown, in a specific embodiment of the present disclosure, the driving assembly 31 includes a driving motor 311 and a transmission gear set, the transmission gear set includes a driving gear 312 connected to the output shaft of the driving motor 311, a driven gear 313 matched with the driving gear 312, and a gear rack 314, the driving motor 311 is fixed to the upper surface of the supporting beam 100, the gear rack 314 is fixed to the inner side of the supporting beam 100, the driven gear 313 is respectively in contact with the supporting beam 100 and the gear rack 314 and its axial hole is configured as a threaded hole, the supporting beam 100 and the gear rack 314 are both provided with a through hole for the transmission rod 32 to pass through, the transmission rod 32 is configured as a lead screw connected to the threaded hole, and the lead screw passes through the supporting beam 100, the driven gear 313 and the gear rack 314 in sequence to connect to the force point.

[0050] Optionally, refer to Figure 4 As shown, the driving gear 312 and the driven gear 313 are connected up and down, the driven gear 313 is slightly larger than the driving gear 312, and the gear frame 314 can be constructed as a U-shaped frame, which has a support plate parallel to the supporting beam 100 and two connecting side plates for connecting to the supporting beam 100, wherein the support plate is used to limit the driven gear 313 from displacement.

[0051] Thus, in the anvil mechanism 1, the lead screw undergoes axial displacement through the transmission of the transmission gear set to push the force point on the elastic anvil strip 11 to move and adjust the curvature of the anvil surface. Similarly, in the scribing mechanism, the lead screw pulls the force point on the elastic track strip 21 to produce a track surface adapted to the glass substrate 300. The drive motor may be a small servo motor or other commonly used motor in the mechanical field, and the transmission structure may also be a worm gear, which is not limited in the present disclosure.

[0052] Furthermore, in order to reduce the influence on the rotation of the driven gear 313, in the specific embodiment of the present disclosure, limiting protrusions are respectively protruded axially on both sides of the driven gear 313, and the limiting protrusions on both sides are respectively abutted against the inner side surface of the support beam 100 and the gear frame 314, and the contact area is reduced by contacting the support beam 100 and the gear frame 314 through the limiting protrusions, thereby reducing the friction with the two when the driven gear 313 rotates; in other embodiments, a concave hole can also be set on the contact surface of the driven gear 313 and the gear frame 314, and lubricating oil can be applied in the concave hole to further reduce the friction.

[0053] In addition, in a specific embodiment of the present disclosure, a displacement sensor 33 is disposed on a side of the gear rack 314 facing the glass substrate 300. Figure 3 and Figure 4As shown, taking the anvil mechanism 1 as an example, two displacement sensors 33 are set on the support plate of the gear frame 314, and the two displacement sensors 33 are symmetrically arranged on both sides of the screw, and are used to measure the distance between the gear frame 314 and the elastic anvil strip 11, so as to correct the curvature matching problem of the anvil mechanism 1 and the marking mechanism 2, that is, when the sum of the distance between the gear frame 314 and the elastic track strip 21 and the distance between the gear frame 314 and the elastic anvil strip 11 is a fixed value, the adjustment of the curved surface is completed.

[0054] Since the elastic anvil strip 11 and the elastic track strip 21 are subjected to curved surface deformation, the stress points in the middle area are the points where the curved surface deformation changes greatly. Therefore, in the specific embodiment of the present disclosure, the stress points include edge stress points and central stress points. Figure 3 and Figure 4 As shown, a connecting head is provided at the end of the transmission rod 32, and the connecting head includes a first connecting head 321 connected to the central force point and a second connecting head 322 connected to the side force point, the first connecting head 321 is constructed as a square head, and the second connecting head 322 is constructed as a round head, and each of the force points is provided with a C-shaped square head 400 with an opening toward the transmission rod 32.

[0055] Taking the anvil mechanism 1 as an example, when the transmission rod 32 undergoes axial displacement, the center force point serves as the main driving force for changing the curvature of the elastic anvil strip, while the side force points further assist in pushing the elastic anvil strip according to the shape of the glass substrate; optionally, several drive components 31 can move synchronously, with the middle transmission rod 32 moving slightly faster and the two sides slightly slower. Therefore, the first connector 321 serves as the main thrust point for driving the elastic anvil strip 11, and the use of a square head can maximize the contact surface with the center force point, resulting in a better force effect. Similarly, the adjustment method of the marking mechanism 2 is consistent with that of the anvil mechanism 1, which will not be elaborated in this disclosure.

[0056] Among them, the connecting head can be connected to the force point in any suitable manner. In the specific embodiment of the present disclosure, the connecting head is installed to the C-shaped square head 400 through the pin shaft 112, that is, the connecting head is accommodated in the C-shaped square head for hinge connection. Considering that when the elastic anvil strip 11 is transformed from a straight strip surface to a curved surface, the central force point is always roughly maintained on the axis of the transmission rod 32, and the force points on the edge will have a slight displacement. Therefore, the pin hole on the first connecting head 321 and the pin shaft 112 have an interference fit, that is, the pin hole and the pin shaft are tightly matched, and the pin shaft will not be displaced relative to the pin hole, and the pin hole on the second connecting head 322 and the pin shaft 112 can be clearance fit, that is, the pin hole is slightly larger than the pin shaft, so that the circular second connecting head 322 can slide in the C-shaped square head 400 at the edge, leaving room for movement at the hinge, and the edge force point and the second connecting head 322 will not interfere with each other.

[0057] It should be noted that the setting of the force bearing point can be determined according to the size of the glass substrate 300. Figure 3 As shown, as an embodiment, three stress points are respectively arranged on the inner sides of the elastic chopping board strip 11 and the elastic track strip 21. It can be understood that the one located in the middle position is a central stress point, and the two located on both sides are edge stress points. As the name implies, the elastic chopping board strip and the elastic track strip can be divided into a middle area and an edge area according to their length, so that several stress points can be divided according to different areas. The specific setting can be based on actual needs, and the present disclosure does not limit this.

[0058] refer to Figure 5 As shown, in a specific embodiment of the present disclosure, the cutting knife assembly 22 includes a cutting knife 221, a knife holder 222 and a sliding member 223 that slidably cooperates with the elastic track bar 21, the knife holder 222 is constructed as a C-shaped plate with an opening toward the elastic track bar 21, and has an upper support plate 2221, a lower support plate 2222 and a side plate 2223, the cutting knife 221 is connected to the side plate 2223 by a clamping member 224, the sliding member 223 is constructed as a tooth column, and can be rotatably connected between the upper support plate 2221 and the lower support plate 2222, and the outer side surface of the elastic track bar 21 is constructed as a tooth surface that cooperates with the tooth column.

[0059] Optionally, a small drive motor (not shown in the figure) can be connected above the tooth column to provide the cutting knife with power for scribing; the pressing mechanism can adopt a telescopic cylinder, the cylinder body is connected to the side plate 2223, the free end of the piston rod is connected to the cutting knife 221 through the bracket 226, and the cutting knife 221 is controlled to move away from or contact the glass substrate 300 by controlling the reciprocating motion of the piston rod. Specifically, when scribing is not required, the pressing member 224 drives the cutting knife 221 away from the glass substrate 300, and when scribing is required, the pressing member 224 drives the cutting knife 221 to be pressed against the glass substrate 300, and the sliding member 223 limits the cutting knife 221 to move along an arc curve adapted to the annealing curvature, thereby achieving scribing of the glass substrate 300 under the premise of reducing the influence on the curvature of the glass substrate 300. At the same time, when the cutting knife extends out to abut against the glass substrate 300, it draws along the curved track, and the cutting knife is subjected to force and transmitted to the tooth column, and the tooth column further transmits the force to the curved surface adjustment mechanism, so that the control of force in the scribing and cutting operation is more reasonable, and the entire cutting knife assembly 22 is not easy to be damaged. In addition, the arc track control ability of the scribing mechanism 2 makes the landing point of the cutting knife 221 consistent during the cutting process, and the axis of the knife holder 222 is always kept perpendicular to the elastic anvil strip 11, so that the cutting marks on the glass substrate are consistent, and the broken edges of the glass substrate after scribing will be more neatly processed without edge collapse.

[0060] There may be a variety of suitable ways to specifically construct the sliding member 223 and the tool holder 222. For example, the sliding member 223 may be constructed as a gear, and the meshing stability of the gear and the rack surface may be utilized to facilitate the cutting knife 221 to stably move along a curved trajectory and draw lines. This is not limited in the present disclosure.

[0061] In order to ensure that the cutting blade slides normally when the track is bent, in the specific embodiment of the present disclosure, the upper support plate 2221 and the lower support plate 2222 are respectively provided with guide wheels 225, and the upper surface and the lower surface of the elastic track bar 21 are respectively provided with guide wheel grooves 211 that cooperate with the guide wheels 225. Figure 5 As shown, the guide wheel 225 can be set to four solid cylinders, which are symmetrically arranged in pairs on the upper support plate 2221 and the lower support plate 2222. The guide wheel diameter can match the width of the guide wheel groove, and a small bearing is installed at one end of the guide wheel 225 connected to the tool holder.

[0062] In addition, the glass substrate 300 is continuously moved backward after being produced from the glass furnace, and is cut into substrate blocks of a certain size after advancing to a suitable size. After the glass substrate 300 is annealed and reaches the cutting size, the anvil mechanism 1 is pushed close to the glass substrate 300 and keeps moving downward synchronously with the glass substrate 300. Therefore, referring to Figure 2 As shown, in a specific embodiment of the present disclosure, a translation unit 4 is also included, and the translation unit 4 includes a U-shaped mounting frame 41, a guide rail mechanism 42 and a linear drive mechanism 43. The U-shaped mounting frame 41 includes a horizontal frame 411 and a vertical frame 412 connected to both sides of the horizontal frame 411. The guide rail mechanism 42 includes a guide rail 421 installed on the vertical frame 412 and a slider 422 sliding linearly along the guide rail 421. The slider 422 and the supporting beam 100 are connected by a connecting rod 44. The linear drive mechanism 43 is consistent with the structure of the curved surface adjustment mechanism 3 to drive the anvil mechanism 1 to move along the guide rail 421 toward or away from the glass substrate 300.

[0063] In this way, the linear drive mechanism 43 drives the entire anvil mechanism to move along the guide rail 421 with the slider 422, so as to control the forward and backward position of the anvil mechanism 1 (the front and back here refer to the longitudinal reciprocating movement), so that the anvil mechanism 1 can smoothly reach the cutting position. The cutting position of different glass substrates varies slightly, so the driving position data can also be used as one of the curved surface adjustment data. Among them, the driving method of the linear drive mechanism 43 is the same as that of the curved surface adjustment mechanism 3, which will not be described in detail.

[0064] Compared with the anvil mechanism 1, the scribing mechanism 2 does not need to translate as a whole when scribing. The cutting knife can slide and scribing by extending it against the glass ribbon, but it will also move downward synchronously with the glass substrate 300. After scribing, the robot breaks off and takes away the glass substrate, and the anvil mechanism 1 and the scribing mechanism 2 rise and reset. There are many methods in the prior art to keep the anvil mechanism 1 and the scribing mechanism 2 moving synchronously with the glass substrate 300, which will not be described in detail.

[0065] According to another aspect of the present disclosure, referring to Figure 2 As shown, a glass substrate cutting device is also provided, comprising the glass substrate cutting device disclosed above, and further comprising:

[0066] A curved surface detection device 500, located on the side of the glass substrate 300, for detecting an initial value of the curved surface of the glass substrate 300 at a position to be cut;

[0067] The control device is respectively connected to the curvature detection device 500 and the curvature adjustment mechanism 3 for receiving the initial curvature value detected by the curvature detection device 500; and is used to control the movement of the transmission rod 32 in the curvature adjustment mechanism 3 according to the initial curvature value to adjust the elastic anvil strip 11 and the elastic track strip 21 from the initial position to the deformation position respectively, and when the force-bearing surface is marked by the cutting knife assembly 22, when the force-bearing surface produces curved wrinkles, the control device controls the curved adjustment mechanism 3 according to the position of the curved wrinkles before the next marking to selectively drive one or more of the several force points to move and compensate.

[0068] Among them, the position to be cut of the glass substrate 300 refers to the position of the glass substrate 300 relative to the anvil mechanism 1 and the scribing mechanism 2 after the cutting size is met. The curved surface detection device 500 can be a camera, which uses the camera to capture the initial value of the curvature of the current glass substrate in real time and transmit it to the control device. The control device generates basic curvature data through image recognition of the shape of the glass substrate, and obtains the moving distance of several force points to control the curved surface adjustment mechanism 3 of the anvil mechanism 1 and the scribing mechanism 2 to operate, so as to realize the deformation of the elastic anvil strip 11 and the elastic track strip 21, and finally form a shape adapted to the annealing curvature of the glass substrate.

[0069] In addition, in order to further achieve accurate curvature matching, after the initial adjustment, during the normal scribing process, the scribing can be observed in real time by human vision or by setting a camera above the glass substrate. When the glass substrate has large fluctuations during the cutting process, it means that the surface wrinkles are generated. At this time, the surface matching needs further compensation adjustment. If wrinkles are observed on both sides of the glass substrate, the curvature of the corresponding multiple edge stress points is fine-tuned before the next scribing; if wrinkles are generated in the middle of the glass substrate, the curvature of the corresponding central stress point is fine-tuned until the camera or human vision observes that the cutting knife is smooth when it passes over the glass substrate, that is, the compensation adjustment is completed, and at this time the control device can record the curvature adjustment data of the relevant glass substrate product, import the data when the product is put into use next time, and realize the change in seconds; the entire cutting equipment is automated, which can achieve the effect of rapid adjustment, and at the same time, the shape matching accuracy of the glass substrate is higher.

[0070] It should be noted that sometimes the curvature adjusted by the elastic anvil strip 11 is slightly larger than the curvature of the glass substrate itself, so that the curvature of the glass substrate will be increased during scribing and cutting, which is more conducive to stress release during annealing of the glass ribbon. Therefore, the glass substrate cutting device provided by the present disclosure can perform mechanical interference on the basis of the molding process, and correct the shape of the glass substrate during cutting, so that the micro-curvature becomes larger, which is conducive to stress release and improves warping.

[0071] According to another aspect of the present disclosure, referring to Figure 7 As shown, a glass substrate cutting method is also provided, which adopts the glass substrate cutting device disclosed above, comprising:

[0072] Detecting an initial value of the curvature of the force-bearing surface when the glass substrate 300 reaches a position to be cut;

[0073] According to the initial value of the curvature, the elastic anvil strip 11 and the elastic track strip 21 are controlled to switch from the initial position to the deformation position;

[0074] Controlling the scribing mechanism 2 to scribble the glass substrate 300 through the cutting knife assembly 22, and determining whether curved wrinkles are generated on the force-bearing surface during the scribing process;

[0075] When curved wrinkles are generated on the stressed surface, the curved surface adjustment mechanism 3 is selectively controlled to drive one or more of the several stress points to perform movement compensation before the next scribing according to the position of the curved surface wrinkles. After the compensation adjustment is completed, normal cutting and scribing are performed. When no curved wrinkles are generated on the stressed surface, it means that the shape of the glass substrate is successfully matched, and normal scribing and cutting can be performed.

[0076] Through the above method, shape matching of different glass substrates can be achieved quickly and accurately, greatly improving efficiency and production efficiency, and reducing the downtime of cutting equipment.

[0077] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0079] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A glass substrate cutting device, characterized in that: include: The chopping board mechanism comprises an elastic chopping board strip and a first support seat, wherein the inner plate surface of the elastic chopping board strip is provided with a plurality of force points, and the plurality of force points divide the length of the elastic chopping board strip into equal parts; The marking mechanism comprises an elastic track bar, a second support seat and a cutting knife assembly slidably connected to the elastic track bar, the inner side surface of the elastic track bar is also provided with a plurality of force points corresponding to the elastic anvil strip, and the plurality of force points divide the length of the elastic track bar into equal parts, the first support seat and the second support seat have the same structure and are arranged in a mirror-symmetrical manner, and comprise a supporting crossbeam and two movable arms rotatably connected to the two ends of the supporting crossbeam; A plurality of curved surface adjustment mechanisms are divided into two groups and are arranged on the anvil mechanism and the scribing mechanism in mirror symmetry. Each of the curved surface adjustment mechanisms includes a driving assembly and a transmission rod. The driving assembly is fixed to the supporting crossbeam. The transmission rod vertically passes through the supporting crossbeam and extends to the force point, so that the elastic anvil strip and the elastic track strip have an initial position and a deformation position. In the initial position, the elastic anvil strip and the elastic track strip are both arranged parallel to the supporting crossbeam, and the movable arm vertically supports the elastic anvil strip and the elastic track strip. In the deformation position, the driving assembly drives the transmission rod to move to drive each of the force points to move toward or away from the glass substrate, and at the same time drives the two movable arms to gather inward respectively, so that the elastic anvil strip and the elastic track strip respectively form an anvil surface and a track surface that are compatible with the annealing curvature of the glass substrate.

2. The glass substrate cutting device according to claim 1, characterized in that: One end of the movable arm is connected to the supporting beam via a fixed axis, and the other end is connected to the elastic anvil strip via a rotating axis. In the initial position, the movable arm is vertically connected between the supporting beam and the elastic anvil strip. In the deformation position, the elastic anvil strip drives the movable arm to rotate around the fixed axis via the rotating axis.

3. The glass substrate cutting device according to claim 1, characterized in that: The drive assembly includes a drive motor and a transmission gear set, the transmission gear set includes a driving gear connected to the output shaft of the drive motor, a driven gear matched with the driving gear, and a gear rack, the drive motor is fixed to the upper surface of the support beam, the gear rack is fixed to the inner side of the support beam, the driven gear is respectively in contact with the support beam and the gear rack and its axial hole is configured as a threaded hole, the support beam and the gear rack are both provided with a through hole for the transmission rod to pass through, the transmission rod is configured as a lead screw matched with the threaded hole, the lead screw passes through the support beam, the driven gear and the gear rack in sequence to be connected to the force point.

4. The glass substrate cutting device according to claim 3, characterized in that: Limiting protrusions are respectively provided on both sides of the driven gear along the axial direction, and the limiting protrusions on both sides are respectively in contact with the inner side surface of the supporting beam and the gear frame.

5. The glass substrate cutting device according to claim 3, characterized in that: A displacement sensor is disposed on a side of the gear rack facing the glass substrate.

6. The glass substrate cutting device according to claim 1, characterized in that: Several of the force points include edge force points and central force points. A connecting head is provided at the end of the transmission rod, and the connecting head includes a first connecting head connected to the central force point and a second connecting head connected to the edge force point. The first connecting head is constructed as a square head, and the second connecting head is constructed as a round head. Each of the force points is provided with a C-shaped square head with an opening facing the transmission rod. The connecting head is installed to the C-shaped square head through a pin shaft, wherein the pin hole on the first connecting head and the pin shaft are interference fit, and the pin hole on the second connecting head and the pin shaft are clearance fit.

7. The glass substrate cutting device according to claim 1, characterized in that: The cutting knife assembly includes a cutting knife, a knife holder and a sliding member that slidably cooperates with the elastic track bar. The knife holder is constructed as a C-shaped plate with an opening toward the elastic track bar and has an upper support plate, a lower support plate and a side plate. The cutting knife is connected to the side plate through a clamping member. The sliding member is constructed as a tooth column and can be rotatably connected between the upper support plate and the lower support plate. The outer side surface of the elastic track bar is constructed as a tooth surface that cooperates with the tooth column.

8. The glass substrate cutting device according to claim 7, characterized in that: The upper support plate and the lower support plate are also respectively provided with guide wheels, and the upper surface and the lower surface of the elastic track bar are respectively provided with guide wheel grooves matching with the guide wheels.

9. The glass substrate cutting device according to claim 1, characterized in that: It also includes a translation unit, which includes a U-shaped mounting frame, a guide rail mechanism and a linear drive mechanism. The U-shaped mounting frame includes a horizontal frame and a vertical frame connected to both sides of the horizontal frame. The guide rail mechanism includes a guide rail installed on the vertical frame and a slider sliding linearly along the guide rail. The slider and the supporting beam are connected by a connecting rod. The linear drive mechanism has the same structure as the curved surface adjustment mechanism to drive the anvil mechanism to move toward or away from the glass substrate along the guide rail.

10. A glass substrate cutting device, characterized in that: The glass substrate cutting device according to any one of claims 1 to 9 further comprises: A curved surface detection device, located on the side of the glass substrate, for detecting an initial value of the curved surface of the glass substrate at a position to be cut; A control device is respectively communicated with the curvature detection device and the curvature adjustment mechanism to receive the initial curvature value detected by the curvature detection device; and is used to control the movement of the transmission rod in the curvature adjustment mechanism according to the initial curvature value to adjust the elastic anvil strip and the elastic track strip from the initial position to the deformed position respectively; and during the process of the force-bearing surface being marked by the cutting knife assembly, when the force-bearing surface produces curved wrinkles, the control device controls the curved adjustment mechanism according to the position of the curved wrinkles before the next marking to selectively drive one or more of the several force points to move and compensate.

11. A glass substrate cutting method, characterized in that: The glass substrate cutting device according to claim 10 comprises: Detecting an initial value of the curvature of the force-bearing surface when the glass substrate reaches a position to be cut; According to the initial value of the curvature, the elastic anvil strip and the elastic track strip are controlled to switch from an initial position to a deformed position; Controlling the scribing mechanism to scribble the glass substrate through the cutting knife assembly, and during the scribing process, determining whether curved wrinkles are generated on the force-bearing surface; When curved wrinkles are generated on the force-bearing surface, the curved surface adjustment mechanism is selectively controlled to drive one or more of the force-bearing points to perform movement compensation before the next marking according to the position of the curved wrinkles.

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