Glass gravity cutting device

Abstract

The invention belongs to the technical field of glass cutting, and particularly relates to a glass gravity cutting device which comprises a mounting seat, a gravity seat and a tool bit seat. The mounting seat is provided with a mounting part and is used for being mounted on the glass cutting machine; the gravity seat is connected with the mounting seat in an up-down sliding manner; and the tool bit seat is connected with the gravity seat. When the glass gravity cutting device is used for cutting thin glass, the gravity seat descends due to gravity, so that the cutter arranged on the cutter head seat can be in contact with the upper surface of the glass, the interaction force between the glass and the cutter is the sum of the gravity of the gravity seat and the gravity of the cutter head, and when the cutter walks on the glass, cutting marks can be marked on the surface of the glass. When concave-convex positions exist on the surface of the glass, the gravity seat can slightly ascend and descend, but the upper surface of the glass is still only subjected to the gravity action of the gravity seat and the tool bit seat, and the problem that the glass is broken due to the fact that the acting force of the cutter on the glass is increased is solved. And the problem of cutter cracking caused by increased acting force due to hard contact between the cutter and the surface of the glass is also avoided.

Description

Technical Field

[0001] This invention belongs to the field of glass cutting technology, and in particular relates to a glass gravity cutting device. Background Technology

[0002] Glass cutting involves dividing a large area of ​​glass into glass sheets of the required size. Currently, glass cutting methods utilize diamond to scribing lines on the glass, creating cutting marks, and then breaking the glass along these marks. To adapt to mass production of glass, automated glass cutting production lines are used in this field to achieve automatic cutting and breaking. In automated glass cutting and breaking production lines, an automatically lowering cutting head is used to scribing lines on the glass. For example, Chinese utility model patent document CN210314010U discloses a high-precision glass cutting head device, including a fixed frame, a linear motor, a sliding frame, and a cutting wheel mechanism. The stator of the linear motor is fixedly connected to the fixed frame, and the mover of the linear motor is fixedly connected to the sliding frame. The fixed frame and the sliding frame are slidably connected via a guide rail pair (the guide rail pair is used to limit and guide the sliding frame, thereby ensuring the uniqueness and accuracy of the cutting wheel mechanism's movement direction). Furthermore, the fixed frame and the sliding frame are connected by a tension spring (the tension spring is mainly used to overcome the gravity of the sliding frame, the linear motor mover, and the cutting wheel mechanism, thereby supporting the aforementioned mechanism). The linear motor's axis, guide rail pair, and tension spring are parallel to each other. The cutter wheel mechanism is fixed on the sliding frame (in use, all three are set vertically, with the cutter wheel mechanism located at the lower end of the sliding frame). A reading head or grating ruler is installed on the fixed frame, and a corresponding grating ruler or reading head is configured on the sliding frame. The grating ruler and reading head work together to determine the downward movement distance of the linear motor. A photoelectric sensor is installed on the fixed frame, and a corresponding sensor plate is configured on the sliding frame. The photoelectric sensor and sensor plate work together to determine the zero position of the linear motor. A controller is also included, and the reading head and photoelectric sensor are electrically connected to the controller. The controller controls the linear motor's movement. Equipped with photoelectric sensors and sensor chips, along with a grating ruler and reading head, the device detects the zero point of the linear motor and precisely controls its travel distance. Together, they accurately measure the distance between the cutter wheel and the glass surface, controlling the linear motor's travel distance with high positioning accuracy, further improving glass cutting precision. Furthermore, the constant force mode operates over a very small distance, significantly reducing the speed of the cutter wheel when it contacts the glass, protecting both the glass and the cutter wheel. Compared to cylinder pressurization and servo motor-driven cam pressurization methods, cutting equipment equipped with this device can handle a wider range of product specifications, including OLED panels with higher precision requirements and thinner panels.

[0003] The aforementioned patent document's technical solution enables the cutting of ultra-thin glass. Specifically, it uses structures such as gratings and sensors, combined with complex calculation methods to control a linear motor to adjust the blade's position, thereby adjusting the cutting force. The overall structure is relatively complex. Furthermore, the surface of thin glass exhibits microscopic unevenness. When the photoelectric sensor and sensor plate cannot precisely control these microscopic changes, the blade height cannot be adjusted in real time. When protrusions exist on the glass, the stress on the glass increases instantaneously. Since thin glass (less than 2mm thick) is easily subjected to this sudden increase in cutting pressure, it is prone to cracking, leading to breakage or even rendering the glass unusable. Moreover, the hard contact between the blade and the glass caused by the protrusions can also cause the blade to chip. Summary of the Invention

[0004] The purpose of this invention is to provide a glass gravity cutting device that solves the problems of glass breakage and blade chipping that occur when existing glass cutting machines scribble lines on thin glass surfaces.

[0005] To achieve the above objectives, this invention provides a glass gravity cutting device for use on a glass cutting machine, comprising a mounting base, a gravity base, and a cutter head base; the mounting base is provided with a mounting part for mounting on the glass cutting machine; the gravity base is slidably connected to the mounting base; and the cutter head base is connected to the gravity base.

[0006] Furthermore, the glass gravity cutting device also includes an elastic element, and the gravity seat extends to a mounting position; the elastic element connects the mounting position and the cutter head seat, and the elastic element elastically supports the cutter head seat; the cutter head seat is rotatably connected to the gravity seat.

[0007] Furthermore, a connecting portion extends downward on one side of the gravity seat, and the connecting portion is provided with a limiting groove. A connecting shaft passes through the limiting groove and is connected to the cutter head seat. The connecting shaft can rotate within the limiting groove.

[0008] Furthermore, the elastic element includes an elastic plate, which has several through grooves, and elastic arms are formed on the upper and lower sides of the through grooves.

[0009] Furthermore, the cutter head seat is provided with a first mounting groove, the mounting position is provided with a second mounting groove, one end of the elastic plate is provided in the first mounting groove, and the other end is provided in the second mounting groove; the two ends of the through groove extend to one side of the first mounting groove and the second mounting groove, respectively.

[0010] Furthermore, the cutter head holder includes a base body and a first upper limit block disposed on the top side of the base body, and a first lower limit block disposed on the bottom side of the base body; the first mounting groove is disposed on one side of the base body; the first upper limit block has a first limiting groove on the side opposite to the first mounting groove, and the first lower limit block has a second limiting groove on the side opposite to the first mounting groove, the first limiting groove and the second limiting groove at least partially overlap with the first mounting groove; one end of the elastic plate has a first limiting part on the top side limited to the first limiting groove, and a second limiting part on the side limited to the second limiting groove.

[0011] Furthermore, the mounting position includes a base and a second upper limit block disposed on the top side of the base, and a second lower limit block disposed on the bottom side of the base; The second mounting groove is located on one side of the base; the second upper limit block has a third limiting groove on the side opposite to the second mounting groove, and the second lower limit block has a fourth limiting groove on the side opposite to the second mounting groove. The third limiting groove and the fourth limiting groove at least partially overlap with the second mounting groove; the top side of the end of the elastic plate has a third limiting part limited to the third limiting groove, and the bottom side has a fourth limiting part limited to the fourth limiting groove.

[0012] Furthermore, the elastic element includes an elastic rod with a through hole inside. Cutting grooves larger than the radius are provided on both sides of the elastic rod at intervals, and the cutting grooves make the elastic rod form an elastic part.

[0013] Furthermore, the mounting base is provided with a guide groove, the gravity base includes a lifting base and a balance base, the balance base is provided with a guide portion passing through the guide groove, and the lifting base is connected to the guide portion; the cutter head base is connected to the lifting base, and the mounting position is located on the bottom side of the balance base.

[0014] Furthermore, the gravity seat is provided with a guide hole, and the mounting base includes a guide shaft passing through the guide hole.

[0015] The glass gravity cutting device provided in this invention has at least the following technical effects: When cutting thin glass, this gravity-based glass cutting device lowers the gravity seat due to gravity, allowing the cutting blade mounted on the blade holder to contact the upper surface of the glass. The interaction force between the glass and the cutting blade is the sum of the weights of the gravity seat and the blade. As the cutting blade travels across the glass, it leaves cutting marks. When the glass surface has unevenness, the gravity seat will rise and fall slightly, but the upper surface of the glass is still only subject to the weight of the gravity seat and the blade holder, preventing the glass from cracking due to increased force from the cutting blade. It also avoids the problem of the cutting blade breaking due to increased force from hard contact with the glass surface. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A structural diagram of a glass gravity cutting device is provided for an embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional view of a glass gravity cutting device provided in an embodiment of the present invention.

[0019] Figure 3 A structural diagram of the cutter head holder portion of the glass gravity cutting device is provided for an embodiment of the present invention.

[0020] Figure 4 This is a structural diagram of the mounting position portion of the glass gravity cutting device provided in an embodiment of the present invention.

[0021] Figure 5 This is a structural diagram of another embodiment of the connection between the gravity seat and the mounting seat of the glass gravity cutting device provided in this invention.

[0022] Figure 6 The structural diagram shows an embodiment of the glass gravity cutting device provided in this invention, in which the elastic element is an elastic rod. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0027] In one embodiment of the glass gravity cutting device of the present invention, the glass gravity cutting device of this embodiment is used on a glass cutting machine. Specifically, the glass gravity cutting device of this embodiment is mounted on the movable base of the glass cutting machine and moves with the movable base to achieve the purpose of marking lines for cutting the glass.

[0028] Please refer to the glass gravity cutting device in this embodiment. Figure 1 , Figure 2 , Figure 5 and Figure 6 The device includes a mounting base 100, a gravity seat 200, a cutter head seat 300, and an elastic element 400. The mounting base 100 has a mounting section 101 for mounting on the movable seat of the glass cutter. The gravity seat 200 is slidably connected to the mounting base 100. Specifically, a guide rail or guide groove can be provided between the gravity seat 200 and the mounting base 100, allowing the gravity seat 200 to slide downwards only under gravity and upwards under the reaction force against its gravity. The cutter head seat 300 is connected to the gravity seat 200. In this embodiment, when cutting thin glass, the gravity seat 200 descends due to gravity, allowing the cutter on the cutter head seat 300 to contact the upper surface of the glass. The interaction force between the glass and the cutter is the sum of the weights of the gravity seat 200 and the cutter head seat 300. As the cutter travels on the glass, it can leave cutting marks on the glass surface. When there are uneven areas on the glass surface, the weight of the cutter head holder 300 and the gravity holder 200 can be slightly raised or lowered. However, the upper surface of the glass is still only subject to the gravity of the gravity holder 200 and the cutter head holder 300, so that the glass can be subjected to a balanced cutting force. This avoids the problem of the glass breaking due to the increased force of the cutter on the glass, and also avoids the problem of the cutter breaking due to the increased force caused by the hard contact between the cutter and the glass surface.

[0029] Preferred, refer to Figures 1 to 6 The gravity seat 200 extends to a mounting position 210, and an elastic element 400 connects the mounting position 210 and the cutter head holder 300, providing elastic support to the cutter head holder 300. The cutter head holder 300 is rotatably connected to the gravity seat 200. When the cutter head holder 300 is subjected to pushing or pulling forces, it can overcome the elastic support force of the elastic element 400 and swing. Therefore, when the glass passes over a protruding part (with a large protrusion or a protruding point), the cutter on the cutter head holder 300 is subjected to a reaction force in the direction of movement. The force on the cutter is transmitted to the elastic element 400, which elastically deforms, allowing the cutter head holder 300 to swing and avoid the protruding part, preventing the cutter from being impacted and breaking. Furthermore, when the elastic element 400 deforms and causes the cutter head holder 300 to swing and move, the cutter on the cutter head holder 300 is still subject to the gravity of the gravity seat 200 and the cutter head holder 300 to cut and scribble on the glass, so that it can be subjected to balanced pressure to cut and ensure the stability of the cutting and scribing.

[0030] Furthermore, refer to Figure 1 A connecting portion 220 extends downward from the front side of the gravity seat 200. The connecting portion 220 has a limiting groove 221. A connecting shaft 230 passes through the limiting groove 221 and connects to the cutter head seat 300. The connecting shaft 230 can rotate within the limiting groove 221, allowing the cutter head seat 300 to be rotatably connected to the gravity seat 200. Furthermore, the connecting shaft 230 can also move up and down within the limiting groove 221, allowing the cutter head seat 300 to move up and down during rotation, preventing interference from the elastic element 400 on the rotation of the connecting shaft 230. Furthermore, the connecting shaft 230 can slide freely through the limiting groove 221, keeping the elastic element 400 in a free state and preventing deformation of the elastic element 400 due to the connection between the connecting portion 220 and the cutter head seat 300.

[0031] Furthermore, refer to Figures 1 to 5 The elastic element 400 includes an elastic plate 410, which has several through slots 411. Elastic arms 412 are formed on the upper and lower sides of the through slots 411. Preferably, the elastic plate 410 has three sets of through slots 411 and four sets of elastic arms 412. In this embodiment, the elastic plate 410 with through slots 411 is used as the elastic element 400, which makes the elastic element 400 have high load-bearing strength in the direction of gravity and is not easily deformed. Therefore, during cutting, the gravity of the gravity seat 200 and the cutter head seat 300 can be applied to the cutter through the elastic element 400, avoiding the phenomenon that the elastic element 400 consumes gravity due to the existence of vertical elastic forces. Furthermore, the elastic plate 410 is cut with multiple through slots 411, which makes it easier to twist and deform when it is subjected to the reaction force of cutting during lateral movement.

[0032] The elastic element 400 can also be the elastic rod 420, see reference. Figure 6The elastic rod 420 has a through hole, and cutting grooves 421 with a radius larger than the hole are provided on both sides of the elastic rod 420 at intervals. The cutting grooves 421 form the elastic part 422 of the elastic rod. By providing the cutting grooves 421, when the elastic rod 420 is subjected to a sudden increase in reaction force when cutting glass, the elastic rod 420 twists and deforms. In addition, the elastic element 400 can also be a torsion spring, tension spring, etc.

[0033] Furthermore, refer to Figures 2 to 4 The cutter head holder 300 is provided with a first mounting groove 301, and the mounting position 210 is provided with a second mounting groove 211. One end of the elastic plate 410 is located in the first mounting groove 301, and the other end is located in the second mounting groove 211. The two ends of the through groove 411 extend to one side of the first mounting groove 301 and the second mounting groove 211, respectively, and the elastic plate 410 does not extend into the first mounting groove 301 and the second mounting groove 211. This makes the elastic plate 410 easier to deform elastically.

[0034] Furthermore, refer to Figures 2 to 4 The cutter head holder 300 includes a base body 310, a first upper limit block 320 disposed on the top side of the base body 310, and a first lower limit block 330 disposed on the bottom side of the base body 310. A first mounting groove 301 is disposed on one side of the base body 310. The first upper limit block 320 has a first limiting groove 321 on the side opposite to the first mounting groove 301, and the first lower limit block 330 has a second limiting groove 331 on the side opposite to the first mounting groove 301. The first limiting groove 321 and the second limiting groove 331 at least partially overlap with the first mounting groove 301. One end of the elastic plate 410 has a first limiting part 413 on its top side that is limited within the first limiting groove 321, and a second limiting part 414 on its side that is limited within the second limiting groove 331. In this embodiment, when the elastic plate 410 is assembled with the cutter head holder 300, one end of the elastic plate 410 extends into the first mounting groove 301, and then the first upper limit block 320 and the first lower limit block 330 are installed on the upper and lower sides of the seat body 310. The first limiting part 413 extends into the first limiting groove 321, and the second limiting part 414 extends into the second limiting groove 331, so that the end of the elastic plate 410 is installed and limited in the first mounting groove 301.

[0035] Furthermore, refer to Figures 2 to 4The mounting position 210 includes a base 212, a second upper limit block 213 located on the top side of the base 212, and a second lower limit block 214 located on the bottom side of the base 212. A second mounting groove 211 is located on one side of the base 212. The second upper limit block 213 has a third limiting groove 215 on the side opposite to the second mounting groove 211, and the second lower limit block 214 has a fourth limiting groove 216 on the side opposite to the second mounting groove 211. The third limiting groove 215 and the fourth limiting groove 216 at least partially overlap with the second mounting groove 211. The top side of the end of the elastic plate 410 has a third limiting portion 415 located within the third limiting groove 215, and the bottom side has a fourth limiting portion 416 located within the fourth limiting groove 216. When the elastic plate 410 is assembled with the gravity seat 200, one end of the elastic plate 410 extends into the second mounting groove 211, and then the second upper limit block 213 and the second lower limit block 214 are installed on the upper and lower sides of the base 212. The third limiting part 415 extends into the third limiting groove 215, and the fourth limiting part 416 extends into the fourth limiting groove 216, so that the end of the elastic plate 410 is installed and limited in the second mounting groove 211.

[0036] Furthermore, an embodiment in which the gravity seat 200 and the mounting base 200 are slidably connected. Specifically, refer to... Figure 1 and Figure 2 The mounting base 100 is provided with a guide groove 102. The gravity base 200 includes a lifting base 201 and a balance base 202. The balance base 201 is provided with a guide portion 203 passing through the guide groove 102, and the lifting base 201 is connected to the guide portion 203. The cutter head seat 300 is connected to the lifting base 201, and the mounting position 210 is located on the bottom side of the balance base 202. Furthermore, the cutter head seat 300 is located on the side of the gravity base 200 away from the mounting base 100. In this embodiment, by setting the lifting base 201 and the balance base 202, the center of gravity of the gravity base 200 is located in the middle position of the mounting base 100, making it easier for the cutter head seat 300 to move upward and make room after being subjected to force.

[0037] Furthermore, in another embodiment where the gravity seat 200 is connected to the mounting base 100, see... Figure 5 The gravity seat 200 has a guide hole, and the mounting base 100 includes a guide shaft 110 passing through the guide hole. The guide hole can be a square hole or a splined hole. The guide shaft 110 can be a square shaft or a splined shaft.

[0038] Furthermore, the glass gravity cutting device in this embodiment also includes a rotating mechanism 500. The mounting 110 connects to the rotating mechanism 500, and the rotating mechanism 500 drives the cutter head seat 300 to rotate, so that cutting and scribing at any angle can be achieved.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A gravity-feed glass cutting device for use on a glass cutting machine, characterized in that, It includes a mounting base, a gravity base, and a cutter head holder; the mounting base is provided with a mounting part for mounting on the glass cutting machine; the gravity base is slidably connected to the mounting base; the cutter head holder is connected to the gravity base.

2. The glass gravity cutting device according to claim 1, characterized in that: It also includes an elastic element, the gravity seat extends to a mounting position; the elastic element connects the mounting position and the cutter head seat, and the elastic element elastically supports the cutter head seat; the cutter head seat is rotatably connected to the gravity seat.

3. The glass gravity cutting device according to claim 2, characterized in that: A connecting portion extends downward from one side of the gravity seat. The connecting portion is provided with a limiting groove. A connecting shaft passes through the limiting groove and is connected to the cutter head seat. The connecting shaft can rotate within the limiting groove.

4. The glass gravity cutting device according to claim 2, characterized in that: The elastic element includes an elastic plate, which has several through grooves, and elastic arms are formed on the upper and lower sides of the through grooves.

5. The glass gravity cutting device according to claim 4, characterized in that: The cutter head seat is provided with a first mounting groove, the mounting position is provided with a second mounting groove, one end of the elastic plate is located in the first mounting groove, and the other end is located in the second mounting groove; the two ends of the through groove extend to one side of the first mounting groove and the second mounting groove, respectively.

6. The glass gravity cutting device according to claim 5, characterized in that: The cutter head holder includes a base body and a first upper limit block disposed on the top side of the base body, and a first lower limit block disposed on the bottom side of the base body; the first mounting groove is disposed on one side of the base body; the first upper limit block has a first limiting groove on the side opposite to the first mounting groove, and the first lower limit block has a second limiting groove on the side opposite to the first mounting groove, the first limiting groove and the second limiting groove at least partially overlap with the first mounting groove; one end of the elastic plate has a first limiting part on the top side limited to the first limiting groove, and a second limiting part on the side limited to the second limiting groove.

7. The glass gravity cutting device according to claim 5, characterized in that: The mounting position includes a base and a second upper limit block disposed on the top side of the base, and a second lower limit block disposed on the bottom side of the base; The second mounting groove is located on one side of the base; the second upper limit block has a third limiting groove on the side opposite to the second mounting groove, and the second lower limit block has a fourth limiting groove on the side opposite to the second mounting groove. The third limiting groove and the fourth limiting groove at least partially overlap with the second mounting groove; the top side of the end of the elastic plate has a third limiting part limited to the third limiting groove, and the bottom side has a fourth limiting part limited to the fourth limiting groove.

8. The glass gravity cutting device according to claim 2, characterized in that: The elastic element includes an elastic rod with a through hole inside. Cutting grooves larger than the radius are provided on both sides of the elastic rod at intervals, and the cutting grooves make the elastic rod form an elastic part.

9. The glass gravity cutting device according to any one of claims 1 to 8, characterized in that: The mounting base is provided with a guide groove, the gravity base includes a lifting base and a balance base, the balance base is provided with a guide portion passing through the guide groove, and the lifting base is connected to the guide portion; the cutter head base is connected to the lifting base, and the mounting position is located on the bottom side of the balance base.

10. The glass gravity cutting apparatus according to any one of claims 1 to 8, characterized in that: The gravity seat is provided with a guide hole, and the mounting base includes a guide shaft passing through the guide hole.

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