High-precision glass cutting apparatus and cutting method thereof

Abstract

The application discloses a kind of high-precision glass cutting equipment and its cutting method, equipment includes controller and two side frames, transmission roller is symmetrically arranged on two side frames, hot air pipe, limiting roller, stroke block, cold air pipe, first servo motor and extension plate, two pairs of partition are symmetrically welded on side frame, stroke block is arranged between each pair of partition, limiting roller is arranged between the inner wall of side frame, first protective cover and second protective cover are arranged, hot air pipe is arranged in first protective cover, cold air pipe is arranged in second protective cover;The knife rest is arranged in the inside of stroke block, and the upper portion of upper stroke block and the lower portion of lower stroke block are respectively provided with first servo motor, and symmetrically distributed lead screw is rotatably inserted into the inside of stroke block.The glass plate is preheated, and after reciprocating scribing, it is cooled and broken again, which can effectively reduce the cracks and errors generated during glass cutting, and can improve the cutting precision of glass.

Description

Technical Field

[0001] This invention relates to the field of glass cutting technology, specifically to a high-precision glass cutting device and its cutting method. Background Technology

[0002] Glass, as a common non-metallic material, is widely used in construction, daily necessities, art, medicine, chemistry, electronics, instrumentation, nuclear engineering, and other fields. Glass instruments are also used in laboratories. The production of glass instruments requires consideration of their characteristics, and most glass instruments differ from the glassware we see in daily life. Therefore, the production methods of glass instruments also differ from those of common glass products. In the production process of glass instruments, large pieces of glass need to be cut as raw materials. After being heated and softened, the edges are melted and shaped, the glass instrument is obtained. The traditional cutting method is to use a glass cutter with artificial diamond to score the glass, and then apply external force to break the glass along the score line, thereby achieving the purpose of cutting the glass plate.

[0003] Extensive research revealed existing technology: Publication number CN115286225A discloses a glass cutting device, a glass cutting system, and a glass cutting method. This glass cutting device includes: a conveying mechanism for setting up the glass and moving it along the conveying mechanism; a thickness measuring mechanism disposed on the conveying mechanism for measuring the thickness of the glass segment to be cut; and a laser cutting machine disposed on the conveying mechanism for adjusting the cutting power based on the measured thickness information of the glass segment to be cut and the speed information of the conveying mechanism transporting the glass, and cutting the glass segment. This solves the problem that existing methods of bend glass edges using mechanical impact easily lead to uneven glass edges and breakage.

[0004] In summary, existing cutting methods, when applied in practical applications, involve applying external force to break the glass plate along the etched lines. This often results in uneven fractures and shallow etch depths, making cracks and shattering more likely. Furthermore, these methods cannot guarantee precision or control the magnitude of the external force, making precise control difficult. Additionally, uneven edges of the cut glass material hinder the proper joining and fusion of the glass plates, increasing the risk of internal air bubbles and cracks, which negatively impacts the production quality of glass instruments. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision glass cutting device and its cutting method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-precision glass cutting device and its cutting method, comprising a controller and two side frames. The two side frames are symmetrically arranged with a transmission roller, a hot air pipe, a limiting roller, a stroke block, a cold air pipe, a first servo motor, and an extension plate. The side frames are symmetrically welded with two pairs of partitions, and a stroke block is arranged between each pair of partitions. The inner walls of the side frames are arranged with a transmission roller, a limiting roller, a first protective cover, and a second protective cover. The upper and lower first protective covers are each provided with symmetrically distributed hot air pipes, and the upper and lower second protective covers are each provided with symmetrically distributed cold air pipes.

[0007] Both ends of the transmission roller and the limiting roller are equipped with end blocks. A tool holder is provided inside the stroke block. A first servo motor is provided at the upper part of the upper stroke block and the lower part of the lower stroke block. Symmetrically distributed lead screws are rotatably inserted inside each stroke block. The controller is installed on the side frame.

[0008] Preferably, a support frame is installed on the inner wall of the side frame, and a displacement sensor is embedded in the surface of the support frame. The controller is electrically connected to the displacement sensor, and the transmission roller is located below the displacement sensor.

[0009] Preferably, temperature sensors are embedded in the surfaces of both the first and second protective covers at equal intervals, and both temperature sensors are electrically connected to the controller.

[0010] Preferably, nozzles are embedded and installed at equal intervals on the surfaces of both the hot air pipe and the cold air pipe.

[0011] Preferably, the side frame surface is provided with a groove adapted to the transmission roller and the limiting roller, the extension plate is rotatably installed with a knob, and the end block surface is provided with a first screw that penetrates into the knob.

[0012] Preferably, a second servo motor is connected to one side of the transmission roller through the end block, and the controller is electrically connected to the second servo motor.

[0013] Preferably, the inner ends of the stroke block are adapted to the surface of the lead screw, and a third servo motor is connected to one end of the lead screw through the side frame. The third servo motor is electrically connected to the controller.

[0014] Preferably, a connector is provided between the first servo motor and the stroke block, and the first servo motor is electrically connected to the controller.

[0015] Preferably, a second screw is provided on one end surface of the first servo motor, a screw hole is provided on the upper surface of the tool holder and the screw hole is adapted to the second screw, and a limiting groove adapted to the tool holder is provided inside the stroke block.

[0016] The present invention also provides a high-precision glass cutting method using the above-mentioned high-precision glass cutting equipment, comprising the following steps:

[0017] S1: Adjust the distance between the transmission roller and the limiting roller according to the thickness of the glass plate. The operator turns the knob to drive the first screw to rotate, adjust the distance between the extension plate and the end block, and thus adjust the distance between the transmission roller and the limiting roller, which is used to clamp and transport glass plates of different thicknesses.

[0018] S2: The controller controls the operation of the second servo motor corresponding to the transmission roller, controls the input distance of the glass plate, and is equipped with a displacement sensor to detect the transmission distance of the glass plate;

[0019] S3: After determining the cutting position, the conveyor rollers transport the glass plate to the inner wall of the first protective cover. Hot air is introduced into the cutting position of the glass plate through the hot air pipe to locally heat the cutting position. The heating temperature is monitored in real time by the temperature sensor. After the specified temperature is reached, the conveyor rollers rotate again to transport the cutting position of the glass plate to the space between the stroke blocks.

[0020] S4: The controller drives the first servo motor according to the input glass plate thickness. The rotation of the first servo motor drives the second screw to rotate inside the screw hole, thereby driving the tool holder to rise and fall. The tool head performs reciprocating scribing along the cutting position of the glass plate, and the scribing depth gradually increases until the scribing depth reaches 3 / 4 of the overall thickness of the glass plate.

[0021] S5: After the cutter head finishes marking the glass plate, the transfer roller will drive the glass plate to move continuously and move the cutting position inside the second protective cover. Cold air will be sprayed onto the cutting position through the cold air pipe to quickly cool the cutting position. Through thermal expansion and contraction, the marked position will break off, completing the cutting of the glass plate.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention preheats the glass plate, which can reduce edge chipping and reduce the difficulty of cutting during the cutting process. Through repeated and gradually deepening cutting, the problem of uneven edges and cracks during the separation of the glass plate can be reduced. After repeated cutting, the cutting area is cooled. The use of thermal barrier contraction material promotes the breakage at the cut point, and the depth of the breakage is smaller, which can reduce the problem of uneven edges of the glass plate. Furthermore, the use of thermal expansion and contraction means that the glass plate can be separated without the application of external force, reducing the problem of glass plate damage caused by external force. This makes the cutting process more controllable and standardized, and can obtain glass plates with neater edges, which is conducive to the subsequent heating, bending and joining of the glass plates. It can ensure the tightness of the cut joint and enable the subsequent heating and fusion after the cut joint is joined, effectively improving the quality of the joint during the forming of glass products. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0024] Figure 2 This is a side view of the transmission roller structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the main cross-sectional structure of the stroke block of the present invention;

[0026] Figure 4 This is a side view of the hot air pipe structure of the present invention;

[0027] Figure 5 This is a side view of the stroke block structure of the present invention.

[0028] In the diagram: 1. Side frame; 2. Transfer roller; 3. First protective cover; 4. Hot air pipe; 5. Limiting roller; 6. Partition plate; 7. Stroke block; 8. Second protective cover; 9. Temperature sensor; 10. Cold air pipe; 11. Nozzle; 12. Lead screw; 13. First servo motor; 14. Support frame; 15. Displacement sensor; 16. Second servo motor; 17. Extension plate; 18. First screw; 19. End block; 20. Slide groove; 21. Knob; 22. Connector; 23. Limiting groove; 24. Cutting head; 25. Screw hole; 26. Cutting post; 27. Second screw; 28. Controller; 29. ​​Third servo motor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 5 The present invention provides four embodiments: Example

[0031] A high-precision glass cutting device includes a side frame 1, a transmission roller 2, a hot air pipe 4, a limiting roller 5, a stroke block 7, a cold air pipe 10, a first servo motor 13, an extension plate 17, and a controller 28. The controller 28 is mounted on the surface of the side frame 1. Partitions 6 are symmetrically welded between the side frames 1, and stroke blocks 7 are arranged between each partition 6. A tool holder 26 is arranged inside each stroke block 7, and the first servo motor 13 is mounted on each stroke block 7. A connecting piece 22 connects the first servo motor 13 to the stroke block 7. All are electrically connected to the controller 28. Symmetrically distributed lead screws 12 are rotatably inserted inside the stroke block 7. The interior of both ends of the stroke block 7 is adapted to the surface of the lead screw 12. The lead screw 12 passes through one end of the side frame 1 and is connected to a third servo motor 29. The controller 28 is electrically connected to the third servo motor 29. A second screw 27 is provided on one end of the surface of the first servo motor 13. A screw hole 25 is opened on the upper surface of the tool holder 26, and the screw hole 25 is adapted to the second screw 27. A limiting groove 23 adapted to the tool holder 26 is opened inside the stroke block 7.

[0032] According to the input glass plate thickness, the controller 28 drives the first servo motor 13. The rotation of the first servo motor 13 drives the second screw 27 to rotate inside the screw hole 25, which in turn drives the tool holder 26 to rise and fall. The tool head 24 performs reciprocating scribing along the cutting position of the glass plate, and the scribing depth gradually increases until the scribing depth reaches 3 / 4 of the overall thickness of the glass plate. Through reciprocating and gradually deepening scribing, the problem of uneven edges and cracks during glass plate separation can be reduced.

[0033] Example 2:

[0034] A transmission roller 2 and a limiting roller 5 are provided on the inner wall of one side of the side frame 1. A support frame 14 is installed on the inner wall of the side frame 1, and a displacement sensor 15 is embedded in the surface of the support frame 14. The controller 28 controls the second servo motor 16 corresponding to the transmission roller 2 to operate, controls the input distance of the glass plate, and the displacement sensor 15 detects the transmission distance of the glass plate.

[0035] The controller 28 is electrically connected to the displacement sensor 15. The transmission roller 2 is located below the displacement sensor 15. Both ends of the transmission roller 2 and the limiting roller 5 are equipped with end blocks 19. The surface of the side frame 1 is provided with extension plates 17. The surface of the side frame 1 is provided with sliding grooves 20 that are adapted to the transmission roller 2 and the limiting roller 5. A knob 21 is rotatably installed inside the extension plate 17. The surface of the end block 19 is provided with a first screw 18 that penetrates into the knob 21. A second servo motor 16 is connected to one side of the transmission roller 2 that penetrates the end block 19. The controller 28 is electrically connected to the second servo motor 16. In actual application, the distance between the transmission roller 2 and the limiting roller 5 can be adjusted according to the thickness of the glass plate. The operator rotates the knob 21, which drives the first screw 18 to rotate, thereby adjusting the distance between the extension plate 17 and the end block 19, and thus adjusting the distance between the transmission roller 2 and the limiting roller 5, for clamping and conveying glass plates of different thicknesses.

[0036] Example 3:

[0037] A first protective cover 3 is installed between one side of the side frame 1, and a second protective cover 8 is installed between the other side of the side frame 1. Temperature sensors 9 are embedded in the surfaces of both the first and second protective covers 3 and 8, and the controller 28 is electrically connected to the temperature sensors 9. Symmetrically distributed hot air pipes 4 are installed inside the first protective cover 3, and symmetrically distributed cold air pipes 10 are installed inside the second protective cover 8. Equally distributed nozzles 11 are embedded in the surfaces of both the hot and cold air pipes 4 and 10. The transfer roller 2 transports the glass plate to the inner wall of the first protective cover 3. Hot air is input to the cutting position of the glass plate through the hot air pipes 4 to locally heat the cutting position. The heating temperature is monitored in real time by the temperature sensors 9. After reaching the specified temperature, the transfer roller 2 rotates again, transporting the glass plate to the cutting position between the stroke blocks 7 to preheat the glass plate, which reduces edge chipping and cutting difficulty during the engraving process.

[0038] After the cutter head 24 finishes marking the glass plate, the transfer roller 2 drives the glass plate to move continuously and moves the cutting position inside the second protective cover 8. Cold air is sprayed onto the cutting position through the cold air pipe 10 to quickly cool the cutting position. Through thermal expansion and contraction, the marked position breaks off, completing the cutting of the glass plate. This results in a glass plate with neater edges, which is beneficial for subsequent heating, bending, and joining of the glass plate. It can ensure the tightness of the cut joint and make the subsequent joint fused by heating, effectively improving the quality of the joint when forming glass products.

[0039] Example 4:

[0040] The high-precision glass cutting method is as follows:

[0041] S1: Adjust the distance between the transmission roller 2 and the limiting roller 5 according to the thickness of the glass plate. The operator turns the knob 21 to drive the first screw 18 to rotate, and adjusts the distance between the extension plate 17 and the end block 19, thereby adjusting the distance between the transmission roller 2 and the limiting roller 5, which is used to clamp and transport glass plates of different thicknesses.

[0042] S2: The controller 28 controls the second servo motor 16 corresponding to the transmission roller 2 to operate, controls the input distance of the glass plate, and is equipped with a displacement sensor 15 to detect the transmission distance of the glass plate.

[0043] S3: After determining the cutting position, the conveyor roller 2 conveys the glass plate to the inner wall of the first protective cover 3. Hot air is input to the glass plate cutting position through the hot air pipe 4 to locally heat the cutting position. The heating temperature is monitored in real time by the temperature sensor 9. After the specified temperature is reached, the conveyor roller 2 rotates again to convey the glass plate cutting position to the stroke blocks 7.

[0044] S4: The controller 28 drives the first servo motor 13 according to the input glass plate thickness. The rotation of the first servo motor 13 drives the second screw 27 to rotate inside the screw hole 25, thereby driving the tool holder 26 to rise and fall, and the tool head 24 to perform reciprocating scribing along the cutting position of the glass plate. The scribing depth gradually increases until the scribing depth reaches 3 / 4 of the overall thickness of the glass plate.

[0045] S5: After the cutter head 24 finishes marking the glass plate, the transfer roller 2 will drive the glass plate to move continuously and move the cutting position to the inside of the second protective cover 8. Cold air is sprayed to the cutting position through the cold air pipe 10 to quickly cool the cutting position. Through thermal expansion and contraction, the marked position will break off, and the glass plate will be cut.

[0046] In practical applications, the operator adjusts the distance between the transmission roller 2 and the limiting roller 5 according to the thickness of the glass plate. The operator turns the knob 21 to drive the first screw 18 to rotate, adjusting the distance between the extension plate 17 and the end block 19, thereby adjusting the distance between the transmission roller 2 and the limiting roller 5. This is used to clamp and transport glass plates of different thicknesses. The controller 28 controls the operation of the second servo motor 16 corresponding to the transmission roller 2 to control the input distance of the glass plate. The displacement sensor 15 detects the transmission distance of the glass plate. The transmission roller 2 transports the glass plate to the inner wall of the first protective cover 3. Hot air is input to the cutting position of the glass plate through the hot air pipe 4 to locally heat the cutting position. The heating temperature is monitored in real time by the temperature sensor 9. After reaching the specified temperature, the glass plate is preheated, which can reduce the chipping of the glass plate during the engraving process and reduce the difficulty of engraving.

[0047] The transfer roller 2 rotates again, transferring the glass plate cutting position to the space between the travel blocks 7. The controller 28, based on the input glass plate thickness, drives the first servo motor 13. The rotation of the first servo motor 13 drives the second screw 27 to rotate inside the screw hole 25, which in turn drives the tool holder 26 to rise and fall. The tool head 24 then performs reciprocating scribing along the cutting position of the glass plate, gradually increasing the scribing depth until it reaches 3 / 4 of the total glass plate thickness. This reciprocating and gradually deepening scribing reduces the problem of uneven edges and cracks during glass plate separation. After the engraving is completed, the engraved area is cooled. Using materials with thermal barrier contraction, the cut edge breaks off with a smaller depth, reducing the problem of uneven glass edges. Furthermore, the use of thermal expansion and contraction allows the glass sheets to be separated without external force, reducing damage caused by external forces. This makes the cutting process more controllable and standardized, resulting in glass sheets with neater edges. This facilitates subsequent heating, bending, and joining of the glass sheets, ensuring the tightness of the cut joints. After heating and fusing, the joints are effectively fused, significantly improving the quality of the seams during the forming of glass products.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-precision glass cutting device, comprising a controller (28) and two side frames (1), wherein the two side frames (1) are symmetrically arranged with a transmission roller (2), a hot air pipe (4), a limiting roller (5), a stroke block (7), a cold air pipe (10), a first servo motor (13), and an extension plate (17), characterized in that: The side frame (1) is symmetrically welded with two pairs of partitions (6) on the upper and lower sides. A stroke block (7) is provided between each pair of partitions (6). A transmission roller (2), a limiting roller (5), a first protective cover (3) and a second protective cover (8) are provided between the inner walls of the side frame (1). A symmetrically distributed hot air pipe (4) is provided inside the upper and lower first protective covers (3), and a symmetrically distributed cold air pipe (10) is provided inside the upper and lower second protective covers (8). The transmission roller (2) and the limiting roller (5) are both equipped with end blocks (19) through both ends of the side frame (1). The stroke block (7) is equipped with a tool holder (26), and the upper part of the upper stroke block (7) and the lower part of the lower stroke block (7) are each equipped with a first servo motor (13). The stroke block (7) is rotatably connected with symmetrically distributed lead screws (12). The controller (28) is installed on the side frame (1).

2. The high-precision glass cutting equipment according to claim 1, characterized in that: The inner wall of the side frame (1) is equipped with a support frame (14), and a displacement sensor (15) is embedded in the surface of the support frame (14). The controller (28) is electrically connected to the displacement sensor (15), and the transmission rollers (2) are all located below the displacement sensor (15).

3. The high-precision glass cutting equipment according to claim 2, characterized in that: Temperature sensors (9) are embedded in the surfaces of the first protective cover (3) and the second protective cover (8) and are equidistantly distributed. The temperature sensors (9) are electrically connected to the controller (28).

4. The high-precision glass cutting equipment according to claim 3, characterized in that: Both the hot air pipe (4) and the cold air pipe (10) are embedded with equally spaced nozzles (11).

5. The high-precision glass cutting equipment according to claim 4, characterized in that: The side frame (1) has a groove (20) on its surface that is compatible with the transmission roller (2) and the limiting roller (5). A knob (21) is rotatably installed inside the extension plate (17). A first screw (18) is provided on the surface of the end block (19) that penetrates into the knob (21).

6. The high-precision glass cutting equipment according to claim 5, characterized in that: The transmission roller (2) is connected to a second servo motor (16) on one side of the through end block (19), and the controller (28) is electrically connected to the second servo motor (16).

7. A high-precision glass cutting device according to claim 6, characterized in that: The two ends of the stroke block (7) are adapted to the surface of the lead screw (12), and the lead screw (12) is connected to a third servo motor (29) at one end of the side frame (1). The third servo motor (29) is electrically connected to the controller (28).

8. A high-precision glass cutting device according to claim 7, characterized in that: The first servo motor (13) is connected to the stroke block (7) by a connector (22), and the first servo motor (13) is electrically connected to the controller (28).

9. A high-precision glass cutting device according to claim 8, characterized in that: The first servo motor (13) has a second screw (27) on one end surface. The tool holder (26) has a screw hole (25) on its upper surface, and the screw hole (25) is adapted to the second screw (27). The stroke block (7) has a limiting groove (23) adapted to the tool holder (26) inside.

10. A high-precision glass cutting method using the high-precision glass cutting equipment of claim 9, characterized in that: Includes the following steps: S1: Adjust the distance between the transmission roller (2) and the limiting roller (5) according to the thickness of the glass plate. The operator turns the knob (21) to drive the first screw (18) to rotate, and adjusts the distance between the extension plate (17) and the end block (19), thereby adjusting the distance between the transmission roller (2) and the limiting roller (5) for clamping and conveying glass plates of different thicknesses. S2: The controller (28) controls the operation of the second servo motor (16) corresponding to the transmission roller (2), controls the input distance of the glass plate, and is equipped with a displacement sensor (15) to detect the transmission distance of the glass plate; S3: After determining the cutting position, the transmission roller (2) transmits the glass plate to the inner wall of the first protective cover (3), and hot air is input to the glass plate cutting position through the hot air pipe (4) to locally heat the cutting position. The heating temperature is monitored in real time by the temperature sensor (9). After the specified temperature is reached, the transmission roller (2) rotates again to transmit the glass plate cutting position to the stroke block (7). S4: The controller (28) drives the first servo motor (13) according to the input glass plate thickness. The rotation of the first servo motor (13) drives the second screw (27) to rotate inside the screw hole (25), thereby driving the tool holder (26) to rise and fall, and the tool head (24) to perform reciprocating scribing along the cutting position of the glass plate. The scribing depth gradually increases until the scribing depth reaches 3 / 4 of the overall thickness of the glass plate. S5: After the cutter head (24) finishes marking the glass plate, the transfer roller (2) will drive the glass plate to move continuously and move the cutting position to the inside of the second protective cover (8). Cold air is sprayed to the cutting position through the cold air pipe (10) to cool the cutting position quickly. Through thermal expansion and contraction, the marked position will break off, and the glass plate will be cut.

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