A cutting mechanism for liquid crystal glass and its application

Abstract

The present invention provides a liquid crystal glass cutting mechanism, comprising a first transfer structure, a second transfer structure, and a cutting structure located between the first and second transfer structures. The first transfer structure comprises a mounting frame, a first roller line, a first transfer platform, and a first air-floating platform located on the mounting frame near the cutting structure. The first transfer platform is slidably mounted on the mounting frame via a first drive assembly. The second transfer structure comprises a mounting base, a second transfer platform, and a second air-floating platform. The second transfer platform comprises a second roller line and a second lifter. The second transfer platform is slidably mounted on the mounting base via a second drive assembly. The cutting structure comprises a cutting frame, a line-finding vision assembly, an upper movable cutting assembly, and a lower movable cutting assembly. This liquid crystal glass cutting mechanism can simultaneously and precisely cut both the upper and lower surfaces of the glass, achieving a high yield rate, reducing cutting process time, and improving production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical cutting, and in particular relates to a cutting mechanism for liquid crystal glass and application thereof. Background Art

[0002] In the manufacturing of LCDs and touch screens, in order to improve production efficiency, reduce manufacturing costs, and form large-scale batch production, multiple LCDs or touch screens are often produced on a larger glass substrate. After silk-screen printing into boxes, there are multiple groups of LCD or touch screen units on the glass. These small units must be separated before liquid crystal infusion can be carried out. The cutting process is to split the entire box of glass substrate into the individual units of the LCD or touch screen.

[0003] The prior art discloses a fully automatic liquid crystal glass cutting machine comprising a cutting mechanism, including a carrying platform and a cutting head, the carrying platform is used to support a glass substrate, and the cutting head is used to cut the glass substrate; a loading mechanism is used to move the glass substrate from a loading area to the carrying platform; a flipping mechanism is used to flip the glass substrate from the cutting mechanism; a unloading mechanism is used to move the glass substrate from the carrying platform to the flipping mechanism, and to move the glass substrate from the carrying platform to the unloading area; the unloading mechanism comprises a transverse module, a lifting module, a support plate and a vacuum adsorption platform, the lifting module is installed on the transverse module, the support plate is connected to the bottom of the lifting module, the vacuum adsorption platform is located below the support plate, and a buffer gap is formed between the vacuum adsorption platform and the support plate; the support plate and the vacuum adsorption platform are connected by an elastic component; the lower surface of the vacuum adsorption platform is paved with a flexible buffer layer, and the hardness of the flexible buffer layer is less than the hardness of the vacuum adsorption platform.

[0004] The current process involves physically cutting the LCD glass using a glass cutting blade. Because the LCD glass (referred to as LCD glass) consists of two layers, such as the TFT layer and the CF layer, one side is typically cut and then the glass is flipped over to cut the other side. However, this method is inefficient, and even with vacuum suction as in existing techniques, friction damage to the glass surface can still occur during flipping, leading to high defective rates. Summary of the Invention

[0005] In response to the above problems, the purpose of the present invention is to provide a cutting mechanism for liquid crystal glass, which can achieve precise cutting of the upper and lower surfaces of the liquid crystal glass at the same time, has a high cutting yield, and has the advantages of reducing the cutting process time and improving production efficiency.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A cutting mechanism for liquid crystal glass comprises a first transport structure, a second transport structure and a cutting structure located therebetween;

[0008] The first transfer structure is used to deliver the glass to be cut to the cutting mechanism. It includes a mounting frame, a first roller line, a first transfer platform, and a first air-floating platform located on the mounting frame near the cutting mechanism. The first transfer platform is slidably mounted on the mounting frame via a first drive assembly. The first transfer platform is provided with a traction suction cup. When negative pressure is applied to the traction suction cup, the glass to be cut above it can be adsorbed. Then, driven by the first drive assembly, the glass to be cut can be pulled to the cutting mechanism. The function of the first air-floating platform is to apply negative pressure to the glass above it, ensuring that the glass position is stable during the cutting process. When a cut is completed and the glass needs to be moved for the next cut, positive pressure is applied to suspend the glass, ensuring that the glass is not scratched during the process of being transported by the first transfer platform to the next horizontal cutting line facing the cutting mechanism.

[0009] The cutting structure is used to cut a larger glass into multiple glass units, and includes a cutting frame, a line-finding vision component, an upper moving cutting component, and a lower moving cutting component.

[0010] The second transfer structure is used to transfer multiple cut glass monomers to the next process, and includes a mounting seat, a second transfer platform, and a second air flotation platform; the second transfer platform includes a second roller line and a second lifter; the second transfer platform is slidably installed on the mounting seat through a second drive assembly.

[0011] In the present invention, the cutting frame includes a support column, a first beam and a second beam mounted parallel to the support column; a support block is provided between the first beam and the second beam to allow the glass to pass between the first beam and the second beam; the line-finding vision component and the upper movable cutting component are slidably arranged on the first beam via the line-finding drive component and the upper drive component respectively; the lower movable cutting component is inverted and slidably arranged on the second beam via the lower drive component. The upper movable cutting component includes an upper fixed plate, an upper visual guide component located on the upper fixed plate, and an upper cutting component; the lower movable cutting component includes a lower fixed plate, a lower visual guide component located on the lower fixed plate, and a lower cutting component.

[0012] In the present invention, the upper and lower cutting parts both include a connecting plate, a first drive unit, a transmission unit, and a cutting knife group; the connecting plate of the upper cutting part is fixedly connected to the upper fixed plate; the connecting plate of the lower cutting part is fixedly connected to the lower fixed plate.

[0013] In the present invention, the cutting knife assembly includes a second drive unit, a switching unit, a left knife holder, a right knife holder, a left cutting knife, and a right cutting knife. The switching unit includes a housing, a pressure wheel located inside the housing, and a left pressure block and a right pressure block located on both sides of the pressure wheel; the lower end surface of the pressure wheel is a curved surface; the left pressure block and the right pressure block are respectively provided with a left roller and a right roller on the opposite sides of each other; the second drive unit is located above the upper end surface of the housing, and its shaft head extends into the interior of the housing and is connected to the pressure wheel; the upper ends of the left and right pressure blocks are respectively connected to the upper end surface of the housing via springs, and the lower ends pass through the lower end surface of the housing to connect to the left knife holder and the right knife holder; the left cutting knife and the right cutting knife are respectively connected to the lower sides of the left knife holder and the right knife holder.

[0014] When cutting waste, unlike cutting glass monomers, the front end of the waste is not attached to the second air flotation table, but is in a suspended state. In order to avoid the situation where the front end of the waste is damaged by gravity before it is completely cut through, preferably, the liquid crystal glass cutting mechanism of the present invention also includes a waste separation structure, which is used to break off the waste that is not completely cut through between adjacent glass monomers and place it into the collection trough below.

[0015] The waste separation structure includes a sheet-breaking assembly, a first support base, a second support base, a first adjustment assembly located above the first support base, and a second adjustment assembly located above the second support base. The sheet-breaking assembly includes a mounting rod and multiple clamping jaws located on the mounting rod. The clamping jaws are conventional electric parallel clamps, comprising a servo motor, a transmission structure, and parallel clamps. The servo motor drives the transmission structure to precisely control the opening and clamping positions of the parallel clamps, as well as the force and speed of the clamps during gripping.

[0016] The first adjustment assembly and the second adjustment assembly are used to adjust the position of the glass breaking assembly in the glass conveying direction and the vertical direction. Specifically, the first adjustment assembly and the second adjustment assembly respectively include a translation module and a lifting module sliding above the translation module. The translation module and the lifting module are both servo synchronous belt modules;

[0017] The two ends of the blade-breaking assembly are movably connected to the first and second adjustment assemblies via connectors. Specifically, the connectors include a mounting plate, a rotary motor fixedly mounted on the mounting plate, and a first shaft seat. The two ends of the blade-breaking assembly are axially connected to the shaft heads of the rotary motors, allowing the blade-breaking assembly to rotate along its own axis. The blade-breaking assembly is axially connected to the rotary motors at both ends, which has the advantage of extending the overall length of the blade-breaking assembly. While single-sided power would cause the blade-breaking assembly to distort, dual-sided power ensures synchronous flipping of the entire assembly.

[0018] A second axle seat is provided on the loading platform of the lifting module of the first adjustment component and the second adjustment component; the first axle seat and the second axle seat are pivotally connected by a pin shaft so that the connecting part can rotate freely in the horizontal direction, thereby preventing the occurrence of jamming or damage of the movable modules when adjusting the position of the piece breaking component or the inconsistent movement of the modules on both sides.

[0019] The first and second air flotation platforms comprise multiple air flotation plates; each of the air flotation plates comprises one or more independent air flotation zones. Furthermore, the air flotation zones are internally provided with multiple longitudinal airflow channels and multiple transverse airflow channels; the tops of the longitudinal airflow channels are provided with multiple first airflow holes extending upward through the air flotation plates; the upper surfaces of the air flotation zones, near the cutting structure, are provided with wedge-shaped grooves extending in a direction that does not overlap with the first airflow holes; and the bottoms of the wedge-shaped grooves are provided with second airflow holes that communicate with the transverse airflow channels.

[0020] In the present invention, there are multiple first powered transfer platforms; there are multiple mounting seats and second powered transfer platforms.

[0021] The beneficial effects of the present invention are as follows: First, the glass cutting mechanism is equipped with an upper movable cutting assembly and a lower movable cutting assembly, which can cut both the upper and lower surfaces of the glass simultaneously, reducing the product flipping process and improving production efficiency, especially avoiding damage to the glass during flipping. Second, the upper and lower cutting components cooperate with a line-finding vision assembly and upper and lower guiding vision components using CCD vision guidance technology to achieve real-time adjustment of the cutting path according to the actual position of the glass cutting baseline identified by the vision assembly during cutting, guiding the upper and lower cutting components to perform precise cutting. Therefore, even when the glass mechanical initial positioning device before cutting is omitted, precise cutting can still be achieved. Third, the omission of the glass mechanical initial positioning device before cutting and the air-blowing movement of the air-floating table after cutting further reduce the probability of friction damage on the glass surface, thereby further improving the product yield. Fourth, the curved surface design of the pressure wheels of the upper and lower cutting blade assemblies enables the purpose of freely switching the required cutting blade according to specific process requirements during the cutting process using only a single power structure. This design is not only sophisticated and cost-effective, but also significantly reduces the required cutting time by reducing the number of upper and lower blade alignments. Fifth, the zoning design of the air flotation plate allows for customized airflow area planning to accommodate products of varying sizes, further reducing production costs. Sixth, the wedge-shaped grooves on the air flotation plate with built-in airflow holes increase the area over which the air is blown to the product, enhancing the air blowing and flotation effect. Seventh, the waste separation structure prevents damage to the product during cutting, further ensuring the quality of the glass product. Furthermore, the automated breaking process reduces labor costs and improves cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the cutting mechanism for liquid crystal glass in Example 1.

[0023] Figure 2 It is a top view of the cutting mechanism for liquid crystal glass in Example 1.

[0024] Figure 3 It is a three-dimensional diagram of the first transfer structure in Example 1.

[0025] Figure 4 It is a three-dimensional diagram of the first transfer platform in Example 1.

[0026] Figure 5 This is a top view of the first air floating platform in Example 1.

[0027] Figure 6 It is a side view of the first air floating platform in Example 1.

[0028] Figure 7 yes Figure 6 Sectional view along line AA.

[0029] Figure 8 yes Figure 5 A partial enlarged view of point B in the middle.

[0030] Figure 9 It is a front view of the cutting structure in Example 1.

[0031] Figure 10 It is a three-dimensional diagram of the cutting frame in Example 1.

[0032] Figure 11 It is a stereoscopic diagram of the line-finding visual component in the first embodiment.

[0033] Figure 12 It is a three-dimensional diagram of the upper movable cutting assembly in Example 1.

[0034] Figure 13 It is a three-dimensional diagram of the upper cutting component in embodiment one.

[0035] Figure 14 It is a three-dimensional diagram of the upper cutting knife assembly in the first embodiment.

[0036] Figure 15 1 is a front view of the upper cutting blade assembly in the first embodiment (the left and right cutting blades are omitted for simplicity).

[0037] Figure 16 It is a side view of the pressure wheel in embodiment 1.

[0038] Figure 17 It is a three-dimensional diagram of the lower movable cutting assembly in the first embodiment.

[0039] Figure 18 It is a three-dimensional diagram of the second transfer structure in Example 1.

[0040] Figure 19 It is a top view of the cutting mechanism for liquid crystal glass in the second embodiment.

[0041] Figure 20 It is a three-dimensional diagram of the waste separation structure in Example 2.

[0042] Figure 21 This is a three-dimensional diagram of the connecting member in Example 2 (the rotating motor is omitted for simplicity)

[0043] Among them: first transfer structure 1, second transfer mechanism 2, cutting mechanism 3, waste separation structure 4, mounting frame 11, first roller line 12, first transfer platform 13, first air floating platform 14, first drive component 15, mounting base 21, second transfer platform 22, second drive component 23, cutting frame 31, line-finding visual component 32, upper moving cutting component 33, lower moving cutting component 34, line-finding drive component 35, upper drive component 36, lower drive component 37, sheet breaking component 41, first support base 42, first Second support seat 43, first adjustment assembly 44, second adjustment assembly 45, connector 46, first lifter 131, traction suction cup 132, air floating plate 141, second roller line 221, second lifter 222, second air floating platform 223, beam 224, support column 311, first beam 312, second beam 313, support block 314, camera 321, Y-axis moving module 322, Z-axis moving module 323, upper fixed plate 331, upper guiding visual component 332, upper cutting component 333, lower fixed plate Fixed plate 341, lower visual guide component 342, lower cutting blade assembly 343, mounting rod 411, clamping claw component 412, mounting plate 461, rotary motor 462, first shaft seat 463, second shaft seat 464, pin 465, first air floating area 1411, second air floating area 1412, Y-axis air flow channel 1413, X-axis air flow channel 1414, air flow port 1415, first air flow hole 1416, wedge-shaped groove 1417, second air flow hole 1418, upper connecting plate 3331, Y-axis servo motor 333 2. Transmission unit 3333, upper cutting knife assembly 3334, Z-axis servo motor 33341, switching unit 33342, left knife holder 33344, right knife holder 33343, left cutting knife 33345, right cutting knife 33346, housing 333421, pressure wheel 333422, left pressure block 333423, right pressure block 333424, left roller 333425, right roller 333426, spring 3333427, housing upper end surface 3334211, housing lower end surface 3334212. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present invention pertains; the terms used in the specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention; for example, the directions or positions indicated by the terms "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are for ease of description only and should not be construed as limiting the present invention.

[0046] The terms "including," "having," and any variations thereof in the present specification, claims, and accompanying drawings are intended to cover a non-exclusive inclusion. The terms "first," "second," and so forth in the present specification, claims, and accompanying drawings are used to distinguish between different items, not to describe a particular order. "Multiple" means two or more, unless otherwise specifically defined.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] In addition, the reference to "embodiment" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. In order to clearly describe the positions in all embodiments, the various axes in this specification are first explained. Specifically, the X-axis refers to the direction orthogonal to the travel of the glass, the Y-axis refers to the direction of travel of the glass, and the Z-axis refers to the vertical direction. All components in the embodiments are existing products, and their corresponding operating methods and specific connection methods are also conventional methods, as long as the purpose of the present invention can be achieved. Example 1

[0049] See also Figure 1 、 Figure 2 , a cutting mechanism for liquid crystal glass, comprising a first transport structure 1, a second transport structure 3 and a cutting structure 2 located therebetween;

[0050] See also Figure 3 The first transfer structure 1 is used to transfer the glass to be cut to the cutting structure position, which includes a mounting frame 11, a first roller line 12, a first transfer platform 13, and a first air floating platform 14 located on the mounting frame close to the cutting structure side; conventionally, the first roller line 12 and the first air floating platform 14 are located at the same horizontal position.

[0051] See also Figure 4 The first transfer platform 13 is slidably mounted on the mounting frame through the first drive assembly 15, that is, the first transfer platform is located on the first drive assembly, and the first drive assembly is located on the mounting frame; the first drive assembly is a Y-axis moving module, specifically a servo synchronous belt module, which is used to drive the first transfer platform to move in the direction of the cutting structure. Conventionally, the first transfer platform 13 is located on the slider of the servo synchronous belt module; the module is used to pull the glass product and the roller is used to support it. Compared with the existing motor-driven roller transmission method, it can effectively reduce the offset of the glass product during long-distance transportation, thereby reducing the difficulty of subsequent cutting adjustments. The first transfer platform 13 includes a first lifter 131 and a traction suction cup 132; the first lifter 131 is a servo electric cylinder, and the traction suction cup 132 is located above the first lifter, so that the traction suction cup can be moved up and down under the drive of the first lifter; as common sense, the traction suction cup is controlled by an air source to adsorb the product. Conventionally, it can be an existing pneumatic vacuum suction cup, as long as it has the function of adsorbing glass. When the glass is not needed to be pulled, the traction suction cup is in a sunken state and is located below the first roller line;

[0052] In this embodiment, there are two first transfer platforms 13 and two first drive assemblies 15 matched therewith, and there are twelve first roller lines; the two first drive assemblies 15 are parallel to the first roller lines 12 and are evenly distributed between the first roller lines; the structure of the mounting frame 11 is not limited and is designed according to actual production needs, such as being set according to the logistics direction of the glass so as to firmly support the above components.

[0053] See also Figures 5 to 8 The first air-floating platform 14 is composed of four air-floating plates 141. When negative pressure is applied to the air-floating plates, they absorb the glass to prevent it from moving during cutting and ensure cutting accuracy. When positive pressure is applied, the glass is blown up into a stable suspended state and then moved to the rear.

[0054] Each air flotation plate 141 is an integrated structure. The plate has multiple parallel Y-axis airflow channels 1413 opened along the longitudinal direction of the plate and multiple parallel X-axis airflow channels 1414 opened along the transverse direction of the plate, which are arranged in a grid pattern. The air flow port 1415 connected to the air source of each airflow channel is located on the side wall of the air flotation plate. The top of the Y-axis airflow channel has multiple first airflow holes 1416 that penetrate the air flotation plate upward. The first airflow holes are arranged in an array along the direction of the Y-axis airflow channel. The upper surface of the air flotation plate is provided with a wedge-shaped groove 1417 on the side close to the cutting structure. The wedge-shaped groove is in a grid pattern and its direction does not overlap with the first airflow holes. The bottom of the wedge-shaped groove is provided with second airflow holes 1418 that are connected to the X-axis airflow channel. When glass needs to be transported, gas flows out of the second airflow holes and then flows along the wedge-shaped groove, thereby increasing the airflow area, making it easier to blow up the upper glass smoothly and improving the blowing and floating effect. To accommodate products of different sizes, the air flow channel of the air flotation plate can be designed to be zoned. As shown in the figure, the air flotation plate is divided into a first air flotation zone 1411 and a second air flotation zone 1412 that are not connected to each other. In this way, when producing small-sized products, the unused first air flotation zone can be closed without affecting the normal use of the second air flotation zone. Moreover, compared with the existing air flotation table with a whole-plate vacuum cavity, the multi-plate independent air supply splicing design and / or single-plate partitioning design has a smaller internal space. When equipped with the same vacuum generator, its vacuum value becomes higher. Therefore, the suction performance requirements of the vacuum generator can be relatively reduced, thereby reducing processing costs.

[0055] See also Figure 9 The cutting structure 3 is used to split the complete glass to be cut into multiple glass monomers, which includes a cutting frame 31, a line-finding visual component 32, an upper movable cutting component 33, and a lower movable cutting component 34; the line-finding visual component 32, the upper movable cutting component 33, and the lower movable cutting component 34 are all located on the side of the cutting frame close to the second transfer structure.

[0056] See also Figure 10 The cutting frame 31 as a whole constitutes a double-layer gantry structure, including two support columns 311, a first beam 312 and a second beam 313 erected in parallel on the two support columns; a support block 314 is provided between the first beam and the second beam; specifically, the first beam, the second beam and the support block are all made of marble, which has the advantages of good rigidity, high hardness, strong wear resistance, small temperature deformation, and high compressive strength, providing a stable operating platform for the subsequent precise cutting process.

[0057] See also Figure 9, the line-finding vision component 32 is slidably set on the left part of the first beam through the line-finding drive component 35; the line-finding drive component is an X-axis moving module, specifically a linear motor module, which can drive the line-finding vision component 32 to move along the first beam 312. Conventionally, the linear motor module is installed on the side of the first beam close to the second transfer structure side, and the line-finding vision component 32 is fixedly connected to the slider of the linear motor module; the line-finding vision component is a CCD vision acquisition device, which is used to grasp the actual position of the baseline of the glass and feed back the image information to the CCD vision alignment system. The CCD vision alignment system then guides itself and other components according to the calculation results, such as the upper moving cutting component, the lower moving cutting component, etc., to make corresponding position adjustment actions. It should be noted that the CCD vision acquisition device is an existing product, and its operation method and specific connection method are also conventional methods. As long as the purpose of the present invention can be achieved, it will be sufficient.

[0058] See also Figure 11 The line-finding vision component 32 includes a camera 321, a Y-axis moving module 322, and a Z-axis moving module 323. The Y-axis moving module is located on the slider of the Z-axis moving module, and the camera 321 is located on the slider of the Y-axis moving module, so that the camera position can be fine-tuned in the Y-axis and Z-axis directions according to the feedback results of the CCD vision alignment system, and the line-finding drive component drives the line-finding vision component to move in the X-axis direction, so that clear and accurate images can be captured to prepare for subsequent precise cutting; both the Z-axis moving module and the Y-axis moving module use servo screw modules to make the fine-tuning action more stable and precise.

[0059] See also Figure 9 、 Figure 12 The upper movable cutting assembly 33 is slidably arranged on the right side of the first beam through the upper drive assembly 36; the upper drive assembly is an X-axis moving module, specifically a linear motor module, which can drive the upper movable cutting assembly to move along the first beam 312. Conventionally, the linear motor module is also installed on the side of the first beam close to the second transfer structure. The upper movable cutting assembly 33 includes an upper fixed plate 331, an upper guiding visual component 332 and an upper cutting component 333; specifically, the upper guiding visual component 332 and the upper cutting component 333 are located on one side of the upper fixed plate 331, and the other side is fixedly connected to the slider of the linear motor module; the upper guiding visual component 332 is a CCD visual acquisition device, and its structure is the same as that of the line-finding visual component 32, which will not be repeated here; its function is to capture the real-time relative position of the upper cutting component and the glass baseline, and feed back the image information on the path to the CCD visual alignment system. The CCD visual alignment system then controls the movement direction of the upper cutting component on the X and Y axes according to the calculation results to achieve guided cutting of the upper surface of the glass.

[0060] See also Figure 13The upper cutting component 333 includes an upper connecting plate 3331, a Y-axis servo motor 3332, a transmission unit 3333, and an upper cutting knife group 3334; the upper connecting plate is fixedly connected to the upper fixed plate; driven by the Y-axis servo motor, the transmission unit can move the upper cutting knife group relative to the upper connecting plate in the Y-axis direction. When the horizontal cutting line on the glass does not coincide with the first beam, it is necessary to adjust the position of the upper cutting knife group in the Y-axis direction in real time according to the offset feedback from the CCD visual alignment system and driven by the Y-axis servo motor. Specifically, the transmission unit includes a driving pulley connected to the shaft head of the Y-axis servo motor, a driven pulley connected to the driving pulley through a synchronous belt, and a screw coaxially fixed to the driven pulley; the screw nut on the screw is fixedly connected to the upper cutting knife group, so that when the screw rotates, the upper cutting knife group moves along the screw axis.

[0061] See also Figures 14 to 16 The upper cutting knife group 3334 includes a Z-axis servo motor 33341, a switching unit 33342, a left knife holder 33344, a right knife holder 33343, a left cutting knife 33345, and a right cutting knife 33346. The Z-axis servo motor controls the switching between the left and right knife holders through the switching unit. Specifically, the switching unit 33342 includes a housing 333421, a pressure roller 333422 located within the housing, and left and right pressure blocks 333423 and 333424 located on either side of the pressure roller. Left and right pressure blocks are provided with left and right rollers 333425 and 333426 on opposite sides of the pressure roller, respectively. A Z-axis servo motor is located above the housing's upper end surface 3334211, with its shaft extending into the housing and coaxially connected to the pressure roller, enabling horizontal rotation of the pressure roller. The left and right pressure blocks are connected to the housing's upper end surface via springs 3333427, respectively. The lower ends of the left and right pressure blocks extend through the housing's lower end surface 3334212 and connect to the left and right tool holders, respectively. A left cutting blade and a right cutting blade are attached to the lower ends of the left and right tool holders, respectively. The lower end surface of the pressure roller is curved. When the curved convex portion rotates to contact the left roller, the left roller is pressed down, driving the left pressure block downward, causing the left cutting knife at its end to descend and contact the upper surface of the glass. When the curved convex portion moves away from the left roller, the left pressure block will reset under the action of the spring, driving the left cutting knife to retract and leave the upper surface of the glass. Similarly, the descent and retraction of the right cutting knife can also be achieved. With the above structure, only one power component, namely the Z-axis servo motor, is required to freely switch between the left and right cutting knives according to real-time process requirements. For example, in actual production, the left and right cutting knives that meet the requirements can be selectively replaced according to the process requirements of each section of the edge of the glass monomer. This design has a sophisticated structure and low cost. After switching, there is no need to re-perform the upper and lower tool alignment action, which can reduce the time required for the cutting process.

[0062] See also Figure 17, the lower movable cutting assembly 34 is inverted and slidably arranged on the right part of the second beam through the lower driving assembly 37. The lower driving assembly is an X-axis moving module, specifically a linear motor module, which can drive the lower movable cutting assembly to move along the second beam 313; conventionally, the linear motor module is installed on the side of the second beam close to the second transfer structure. The lower movable cutting assembly 34 includes a lower fixed plate 341, a lower guiding visual component 342 and a lower cutting component 343; specifically, the lower guiding visual component 342 and the lower cutting component 343 are located on one side of the lower fixed plate 341, and the other side is fixedly connected to the slider of the linear motor module; the lower guiding visual component 342 is also a CCD visual acquisition device, and its structure is the same as that of the line-finding visual assembly 32, and its role in the process of guiding the cutting of the lower surface of the glass by the CCD visual alignment system is similar to that of the upper guiding visual component 332, and will not be repeated here.

[0063] The specific structure and cutting principle of the lower cutting component 343 are similar to those of the upper cutting component and will not be described again.

[0064] See also Figure 18 The second transfer structure 3 is used to transfer the cut glass monomers to the next process in sequence, which includes a mounting seat 21, a second transfer platform 22, and a second air-floating platform 223; the second transfer platform 22 slides on the mounting seat 21 through a second drive component 23; the second transfer platform 22 includes a second roller line 221 and a second lifter 222; the second roller line 221 and the second air-floating platform 223 are located above the second lifter 222 and are at the same horizontal position; the second drive component 23 is a Y-axis moving module, specifically a servo screw module; the second lifter 222 adopts a servo screw module, which is used to drive the second roller line and the second air-floating platform above to move up and down in the Z-axis direction.

[0065] In this embodiment, there are two mounting bases 21 and two second transfer platforms 22, and two second drive assemblies 23 matching the second transfer platforms 22. Each second transfer platform 22 has two air-floating plates connected by a crossbeam 224, thereby forming a second air-floating platform composed of four air-floating plates. The air-floating plates of the second air-floating platform are identical to those of the first air-floating platform in structure and usage, and will not be described here.

[0066] In this embodiment, a horizontal gap is provided between the first air-floating platform 14 and the second air-floating platform 223 ; the upper and lower cutting blades can extend into the gap to cut the glass to meet the cutting depth requirements of the production process until it automatically splits.

[0067] The operation process of the liquid crystal glass cutting mechanism is as follows: first, the glass is placed on the first roller line, the first lifter drives the traction suction cup to rise to the same level as the first roller line, absorbs the upper glass and, driven by the first driving component below and supported by the first roller line, transports the glass horizontally to the cutting position below the cutting structure. At this time, the horizontal (i.e., X-axis) cutting baseline on the glass is located between the first air-floating platform and the second air-floating platform. Then, the traction suction cup breaks the vacuum and is driven by the first lifter to descend to the bottom of the first air-floating platform. After the first air-floating platform or / and the second air-floating platform are negatively pressurized (selected according to process requirements) to absorb the glass, the line-finding visual component on the first beam is vertically moved in the X-axis. The upper and lower drive assemblies respectively drive the upper and lower cutting knife groups to cut the upper and lower sides of the glass at the same time under the real-time guidance of the CCD vision alignment system. The cut waste automatically falls into the waste collection tank, and the glass product is adsorbed by the second air floatation table with negative pressure after cutting, and is transported to the rear under the drive of the second drive assembly. Example 2

[0068] like Figures 19 to 21 As shown:

[0069] When actually cutting a glass monomer, both ends of the monomer will overlap on the first air-floating platform and the second air-floating platform respectively. When cutting the waste between the glass monomers, the waste cannot overlap on the second air-floating platform because its width is smaller than the spacing width. Instead, it is left suspended in the air. In order to avoid the situation where the front end of the waste is damaged by gravity before being completely cut through, based on the first embodiment, the liquid crystal glass cutting mechanism of this embodiment further includes a waste separation structure 4, such as Figure 18 , used to break off the incompletely cut waste between adjacent glass monomers and place the waste into the collection trough below.

[0070] The waste separation structure 4 includes a sheet breaking assembly 41, a first support base 42, a second support base 43, a first adjustment assembly 44 located above the first support base, and a second adjustment assembly 45 located above the second support base.

[0071] The sheet-breaking assembly 41 includes a mounting rod 411 and a plurality of clamping jaws 412 located on the mounting rod; the clamping jaws are existing electric parallel clamps, which include a servo motor, a transmission structure, and parallel clamps. The servo motor drives the transmission structure to accurately control the opening and clamping position of the parallel clamps and the force and speed of the clamps when grasping.

[0072] The first adjustment assembly 44 and the second adjustment assembly 45 are used to adjust the position of the sheet breaking assembly in the Y-axis direction and the Z-axis direction. Specifically, the first adjustment assembly and the second adjustment assembly respectively include a Y-axis translation module and a Z-axis lifting module sliding above the Y-axis translation module. Both the Y-axis translation module and the Z-axis lifting module are servo synchronous belt modules;

[0073] The two ends of the flap-breaking assembly are movably connected to the first adjustment assembly 44 and the second adjustment assembly 45 via connectors 46. Specifically, connector 46 includes a mounting plate 461, a rotary motor 462 fixedly mounted thereto, and a first shaft seat 463. The two ends of the flap-breaking assembly are axially connected to the shaft heads of the rotary motors on their respective sides, allowing the flap-breaking assembly to rotate along its own axis. The advantage of having the rotary motors axially connected at both ends of the flap-breaking assembly is that the flap-breaking assembly is longer overall. While single-sided power can easily cause the flap-breaking assembly to distort, dual-sided power ensures synchronous flipping.

[0074] A second axle seat 464 is provided on the loading platform of the Z-axis lifting module of the first adjustment component and the second adjustment component; the first axle seat and the second axle seat are pivotally connected by a pin shaft 465 so that the connecting part can rotate freely in the horizontal direction to prevent the occurrence of jamming or damage of the movable modules when adjusting the position of the breaking component or the inconsistent movement of the modules on both sides.

[0075] When the waste needs to be separated from the glass monomer, the first adjusting component and the second adjusting component first drive the breaking component with the jaws in the open state to move to a position suitable for performing the breaking action, and then the jaws clamp the waste, the breaking component retreats, and separates the waste from the glass monomer behind, and then the rotating motors at both ends drive the breaking component to flip a certain angle, and finally, driven by the first adjusting component and the second adjusting component, the waste is placed in the collection trough below.

[0076] Referring to Example 2, taking the example of cutting a glass substrate with a specification of 1070.411*614.336mm into three glass monomers with a specification of 608.588*348.377mm, after a batch of 5,000 substrate cutting tests, it was found that compared with the existing liquid crystal glass cutting equipment with good cutting effect, the liquid crystal glass cutting mechanism of the present invention can reduce the cutting time by 12%, and the cutting yield can be increased from 96% to 99.9%.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting mechanism for liquid crystal glass, characterized in that: The cam is a unit that is configured to move the load bearing brackets on the support frame, the unit being a first unit that is configured to move the load bearing brackets on the support frame, and a second unit that is configured to move the load bearing brackets on the support frame. The mounting plate includes a rotating motor fixedly mounted thereon, and a first shaft seat. The two ends of the sheet breaking assembly are axially connected to the shaft head of the rotating motor. The first and second adjustment assemblies each include a translation module and a lifting module that slides above the translation module. A second shaft seat is provided on the loading platform of the lifting modules of the first and second adjustment assemblies. The first shaft seat is pivotally connected to the second shaft seat. The first and second air flotation platforms each include multiple air flotation plates. Each air flotation plate includes one or more independent air flotation zones. Each air flotation zone has multiple longitudinal air flow channels and multiple transverse air flow channels within it. Multiple first air flow holes are formed at the top of each longitudinal air flow channel, extending upward through the air flotation plate. A wedge-shaped groove is formed on the upper surface of the air flotation zone, adjacent to the cutting structure, and its orientation does not overlap with the first air flow holes. A second air flow hole is provided at the bottom of each wedge-shaped groove, communicating with the transverse air flow channels. The line-finding vision assembly includes a camera, a Y-axis moving module, and a Z-axis moving module. The Y-axis moving module is located on a slider of the Z-axis moving module, and the camera is located on a slider of the Y-axis moving module.

2. The liquid crystal glass cutting mechanism according to claim 1, wherein: The cutting frame includes a support column, a first beam and a second beam parallel to the support column; the line-finding vision component and the upper movable cutting component are respectively slidably set on the first beam through the line-finding drive component and the upper drive component; the lower movable cutting component is inverted and slidably set on the second beam through the lower drive component.

3. The liquid crystal glass cutting mechanism according to claim 2, wherein: The upper movable cutting assembly includes an upper fixed plate, an upper guiding visual component located on the upper fixed plate, and an upper cutting component; the lower movable cutting assembly includes a lower fixed plate, a lower guiding visual component located on the lower fixed plate, and a lower cutting component; the upper and lower cutting components both include a connecting plate, a first driving unit, a transmission unit, and a cutting knife group; the connecting plate of the upper cutting component is fixedly connected to the upper fixed plate; the connecting plate of the lower cutting component is fixedly connected to the lower fixed plate.

4. The liquid crystal glass cutting mechanism according to claim 3, wherein: The cutting knife group includes a second driving unit, a switching unit, a left knife holder, a right knife holder, a left cutting knife and a right cutting knife; the switching unit includes a shell, a pressure wheel located inside the shell, and a left pressure block and a right pressure block located on both sides of the pressure wheel; the lower end surface of the pressure wheel is a curved surface; the left pressure block and the right pressure block are respectively provided with a left roller and a right roller on opposite sides; the second driving unit is located above the upper end surface of the shell, and its shaft head extends into the interior of the shell and is connected to the pressure wheel; the left and right pressure blocks are respectively connected to the upper end surface of the shell by springs, and their lower ends pass through the lower end surface of the shell to be connected to the left knife holder and the right knife holder; the left cutting knife and the right cutting knife are respectively connected to the bottom of the left knife holder and the right knife holder.

5. A method for cutting liquid crystal glass using the liquid crystal glass cutting mechanism according to claim 1, characterized in that: In the first step, the glass is placed on the first roller line. The traction suction cup rises to the same level as the first roller line, adsorbing the upper glass. Driven by the first drive assembly below and supported by the first roller line, the glass is transported horizontally to the cutting position below the cutting structure. The traction suction cup breaks the vacuum and descends to the bottom of the first air flotation table. In the second step, after the first air flotation table applies negative pressure to adsorb the glass, the line-finding vision component moves to find the horizontal cutting baseline of the glass, guiding the upper and lower moving cutting components to make adjustments. In the third step, the upper and lower moving cutting components cut the upper and lower sides of the glass. In the fourth step, after the cutting is completed, the glass product is adsorbed by the second air flotation table with negative pressure, and driven by the second driving component, the glass product is transported to the rear.

6. A method for cutting liquid crystal glass using the liquid crystal glass cutting mechanism according to claim 5, characterized in that: The first step is to place the glass on the first roller line, and the traction suction cup rises to be flush with the first roller line, adsorbs the upper glass and, driven by the first drive component below and supported by the first roller line, transports the glass horizontally to the cutting position below the cutting structure, and the traction suction cup breaks the vacuum and descends to the bottom of the first air flotation table; the second step is that after the first air flotation table adsorbs the glass with negative pressure, the line-finding visual component moves to find the horizontal cutting baseline of the glass, and guides the upper and lower moving cutting components to make adjustments; the third step is that the upper and lower moving cutting components cut the upper and lower sides of the glass; the fourth step is that after the cutting is completed, the glass product is adsorbed by the second air flotation table with negative pressure, and driven by the second drive component, the glass product is transported to the rear, and the waste between the glass products is driven by the first and second adjustment components and moved to a position suitable for performing the breaking action, where the breaking component clamps and performs a backward action to separate the waste from the glass monomer at the rear.

7. Use of the liquid crystal glass cutting mechanism according to claim 1 in cutting liquid crystal glass.

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