Glass cutting device

Abstract

The utility model relates to a glass cutting device which solves the technical problems that when an existing glass cutting device is used, glass cutters of different specifications need to be replaced or the whole set of cutting device needs to be directly replaced according to glass of different thicknesses, time and labor are wasted, and operation efficiency is affected. The device comprises a bottom plate, a second air cylinder support, a second air cylinder, a linear bearing seat, a linear bearing, an extension spring, a cutter shaft, a miniature pressure sensor, a glass cutter and a spring connecting seat, the linear bearing is connected with the linear bearing seat, the cutter shaft is connected with the linear bearing and penetrates through the linear bearing, and the glass cutter is connected with the lower end of the cutter shaft. The miniature pressure sensor is fixedly connected with the upper end of the cutter shaft, the tail end of a telescopic rod of the second air cylinder abuts against the miniature pressure sensor, the upper end of the extension spring is connected with the linear bearing seat, the spring connecting seat is fixedly connected with the glass cutter through a screw, and the lower end of the extension spring is connected with the screw. The device is widely applied to the technical field of glass processing.

Description

Technical Field

[0001] This utility model relates to the field of automatic glass processing technology, and more specifically, to a glass cutting device. Background Technology

[0002] The windshields, rear windshields, and side windows used in automobiles are automatically processed from raw glass using fully automated multi-functional glass processing equipment. The working process of this equipment mainly includes cutting, edge bending, edge grinding, and drilling. The cutting process is carried out using a cutting device equipped with roller-type glass cutters. The roller-type glass cutters press against the edge of the glass, and the cutting device moves in the XY plane, allowing the roller-type glass cutters to cut the edge of the glass.

[0003] However, conventional cutting devices require different sizes of roller-type glass cutters to cut glass of varying thicknesses; or a single cutting device may be designed for a specific glass thickness, necessitating the replacement of different cutting devices to suit different thicknesses. This changeover process is time-consuming, labor-intensive, and quite cumbersome, impacting operational efficiency. The structure of existing cutting devices can be found in invention patent application CN117700085A. Summary of the Invention

[0004] This application aims to solve the technical problem that existing glass cutting devices require different specifications of glass cutters or even the entire cutting device to be replaced for different thicknesses of glass, which is time-consuming, labor-intensive, and affects work efficiency. It provides a glass cutting device that is easy to use and does not affect work efficiency.

[0005] This disclosure provides a glass cutting device, including a base plate, a second cylinder bracket, a second cylinder, a linear bearing seat, a linear bearing, a tension spring, a cutter shaft, a miniature pressure sensor, a glass cutter, and a spring connecting seat. The second cylinder bracket is fixedly connected to the base plate, the second cylinder is fixedly connected to the second cylinder bracket, the linear bearing seat is fixedly connected to the base plate, the linear bearing is connected to the linear bearing seat, the cutter shaft is connected to the linear bearing and passes through the linear bearing, the glass cutter is connected to the lower end of the cutter shaft, the miniature pressure sensor is fixedly connected to the upper end of the cutter shaft, the end of the telescopic rod of the second cylinder abuts against the miniature pressure sensor, the upper end of the tension spring is connected to the linear bearing seat, the spring connecting seat is fixedly connected to the glass cutter by screws, and the lower end of the tension spring is connected to screws.

[0006] Preferably, the glass cutting device further includes an electro-proportional valve for adjusting the stroke of the second cylinder.

[0007] More preferably, the glass cutting device also includes a controller that controls an electro-proportional valve based on a signal fed back from a miniature pressure sensor.

[0008] Preferably, the glass cutting device further includes a sensing sheet and a groove-type photoelectric sensor. The sensing sheet is fixedly connected to the spring connecting seat, and the groove-type photoelectric sensor is fixedly connected to the linear bearing seat. In the initial state, the sensing sheet is located in the groove of the groove-type photoelectric sensor.

[0009] Preferably, the glass cutting device further includes a guide rod, the upper end of which is fixedly connected to a linear bearing seat, the guide rod passes through a spring connecting seat, and the spring connecting seat can slide along the guide rod.

[0010] Preferably, the glass cutter is a roller-type glass cutter.

[0011] The beneficial effects of this disclosure are that by incorporating a miniature pressure sensor, the cutting pressure can be adjusted according to different thicknesses or shapes of glass, allowing the same roller-type glass cutter to adapt to glass of varying thicknesses or shapes. This eliminates the need for time-consuming and laborious disassembly and replacement of the entire cutting device with a new one to accommodate different glass thicknesses, and also eliminates the need for time-consuming and laborious replacement of glass cutters of different specifications. Furthermore, the miniature pressure sensor can automatically and accurately adjust the cutting pressure to achieve the required appropriate value, preventing glass breakage and edge chipping due to improper cutting pressure, and also helping to ensure cutting quality.

[0012] The cutting pressure is adjusted using a miniature pressure sensor, making it particularly suitable for thinner glass.

[0013] A grooved photoelectric sensor and sensing plate are installed. When an abnormal situation occurs, such as when there is no glass on the platform, the grooved photoelectric sensor generates a signal to feed back to the controller. The controller then controls the extension rod of the cylinder to retract, thereby causing the cutter shaft to rise and the roller glass cutter to retract, preventing the roller glass cutter blade from pressing on the platform and causing blade damage.

[0014] Further features and aspects of this disclosure will be clearly described in the following detailed description with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a glass cutting device with switching function;

[0016] Figure 2 yes Figure 1 The diagram shows a glass cutting device with switching function installed on an XY linear module.

[0017] Figure 3 yes Figure 2 Cross-sectional view along the EE direction;

[0018] Figure 4 yes Figure 2Cross-sectional view along the CC direction;

[0019] Figure 5 yes Figure 2 Cross-sectional view along the AA direction;

[0020] Figure 6 yes Figure 5 Cross-sectional view along the DD direction;

[0021] Figure 7 yes Figure 2 Side view of the structure shown.

[0022] Explanation of symbols in the diagram:

[0023] 1. Base plate, 2. First cylinder bracket, 3. Connecting sleeve, 4. Lifting frame, 5. Cutter shaft, 6. Blocking pad, 7. Linear bearing seat, 8. Spring connecting seat, 9. Sensing plate, 10. Second cylinder bracket, 11. Roller-type glass cutter, 12. Pad, 13. Guide rod, 15. Second cylinder, 15-1. Telescopic rod, 16. First cylinder, 17. Tension spring, 18. Groove-type photoelectric sensor, 19. Linear bearing, 20. Miniature pressure sensor, 21. Screw, 22. Electro-proportional valve. Detailed Implementation

[0024] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The specific embodiments described below are merely preferred embodiments of this application, and the scope of protection of this application is not limited thereto. Those skilled in the art can make modifications or variations based on the principles, concepts, and spirit of this application, and the resulting technical solutions should all be covered within the scope of protection of this application.

[0026] like Figure 1-7As shown, the glass cutting device with switching function includes a base plate 1, a first cylinder bracket 2, a first cylinder 16, a connecting sleeve 3, a lifting frame 4, a pad 12, a second cylinder bracket 10, a second cylinder 15, a linear bearing seat 7, a linear bearing 19, a tension spring 17, a screw 21, a cutter shaft 5, a miniature pressure sensor 20, a roller-type glass cutter 11, a spring connecting seat 8, a blocking pad 6, a guide rod 13, a sensing plate 9, a groove-type photoelectric sensor 18, and an electro-proportional valve 22. The first cylinder bracket 2 is fixedly connected to the base plate 1, the first cylinder 16 is fixedly mounted on the first cylinder bracket 2, the upper part of the lifting frame 4 is fixedly connected to the telescopic rod of the first cylinder 16 through the connecting sleeve 3, the pad 12 is fixedly connected to the base plate 1, and the second cylinder bracket 10 is fixedly connected to the pad 15. 12. A fixed connection is made. The second cylinder 15 is fixedly installed on the second cylinder bracket 10. The second cylinder 15 is located below the first cylinder 16. The second cylinder 15 is equipped with a telescopic rod 15-1. The linear bearing seat 7 is fixedly installed on the pad 12. The linear bearing 19 is installed on the linear bearing seat 7. The cutter shaft 5 is connected to the linear bearing 19. The cutter shaft 5 passes through the linear bearing 19. The roller glass cutter 11 is connected to the lower end of the cutter shaft 5. The miniature pressure sensor 20 is fixedly connected to the upper end of the cutter shaft 5. The end of the telescopic rod 15-1 abuts against the miniature pressure sensor 20. The upper end of the tension spring 17 is connected to the linear bearing seat 7. The spring connecting seat 8 is fixedly connected to the body of the roller glass cutter 11 with screws 21. The lower end of the tension spring 17 is connected to the screws 21.

[0027] The blocking pad 6 is fixedly connected to the upper part of the cutter shaft 5. The upper end of the cutter shaft 5 passes through the lower part of the lifting frame 4. When the first cylinder 16 works to move the lifting frame 4 downward, the lower part of the lifting frame 4 can press down the blocking pad 6, and the blocking pad 6 is forced to move the cutter shaft 5 downward.

[0028] The upper end of the guide rod 13 is fixedly connected to the linear bearing seat 7. The guide rod 13 passes through the spring connecting seat 8, which can slide vertically along the guide rod 13. The sensing element 9 is fixedly connected to the spring connecting seat 8, and the groove-type photoelectric sensor 18 is fixedly connected to the linear bearing seat 7. In the initial state, the sensing element 9 is located in the groove of the groove-type photoelectric sensor 18. When the sensing element 9 moves downward a certain distance, the sensing element 9 disengages from the groove-type photoelectric sensor 18 (the sensing element 9 is no longer located in the groove of the groove-type photoelectric sensor 18), and the groove-type photoelectric sensor 18 generates a signal.

[0029] The electric proportional valve 22 is used to adjust the stroke of the second cylinder 15.

[0030] The working process of the glass cutting device with switching function described above is as follows:

[0031] A glass cutting device with switching function is installed on the XY linear module of the glass processing equipment. Below the glass cutting device is a platform on which the glass to be cut is positioned.

[0032] Depending on the thickness of the glass to be cut, the action of the first cylinder 16 or the action of the second cylinder 15 can be selected to switch between different cutting pressures.

[0033] (I) First case:

[0034] When the thickness of the glass to be cut is 2mm, the first cylinder 16 is activated. The extension rod of the first cylinder 16 extends, causing the lifting frame 4 to move downward a certain distance. The lower part of the lifting frame 4 presses down on the blocking pad 6, which in turn causes the cutter shaft 5 to move downward. Guided by the linear bearing 19, the cutter shaft 5 carries the roller-type glass cutter 11 downward a certain distance (achieving free and flexible up-and-down movement of the cutter shaft 5 without resistance), thus bringing the blade of the roller-type glass cutter 11 into contact with the glass surface. Then, the glass processing equipment moves the entire glass cutting device, and the blade of the roller-type glass cutter 11 moves to cut the glass.

[0035] As the cutter shaft 5 moves downwards with the roller-type glass cutter 11 and the spring connecting seat 8, the guide rod 13 plays a guiding role, improving the stability of the movement of the spring connecting seat 8 and also improving the stability of the movement of the cutter shaft 5.

[0036] After the roller glass cutter 11 completes the moving cut on the glass, the telescopic rod of the first cylinder 16 retracts, the lower part of the lifting frame 4 no longer presses down on the blocking pad 6, and under the pulling force of the tension spring 17, the cutter shaft 5 rises, and the roller glass cutter 11 moves away from the glass and retracts.

[0037] For safety, a recessed photoelectric sensor 18 and a sensing element 9 are installed. In the event that there is no glass on the platform and the blade shaft 5 moves downwards beyond the predetermined normal distance, the sensing element 9 will disengage from the recessed photoelectric sensor 18 (the sensing element 9 is not located in the recess of the recessed photoelectric sensor 18). The recessed photoelectric sensor 18 will then generate a signal feedback to the controller. The controller will then control the extension rod of the first cylinder 16 to retract, thereby causing the blade shaft 5 to rise and the roller-type glass cutter 11 to retract, preventing the blade of the roller-type glass cutter 11 from pressing on the platform and causing damage to the blade. Alternatively, if other abnormal situations occur that cause the blade shaft 5 to move downwards beyond the predetermined normal distance, the recessed photoelectric sensor 18 and the sensing element 9 will activate.

[0038] (ii) The second scenario:

[0039] When the glass to be cut is relatively thin, such as 1.1mm thick, the second cylinder 15 is selected. The telescopic rod 15-1 of the second cylinder 15 extends, and the end of the telescopic rod 15-1 presses down on the miniature pressure sensor 20, thereby causing the cutter shaft 5 to move downward. The cutter shaft 5 moves downward a certain distance so that the blade of the roller-type glass cutter 11 contacts the glass surface. Then, the glass processing equipment moves the entire glass cutting device, and the blade of the roller-type glass cutter 11 moves and cuts the glass.

[0040] The miniature pressure sensor 20 automatically and precisely adjusts the pressure exerted by the roller-type glass cutter 11 on the glass, ensuring the cutting pressure reaches the required appropriate value. The miniature pressure sensor 20 feeds back pressure data to the controller, which then controls the electro-proportional valve 22. The valve adjusts the stroke of the second cylinder 15; the greater the extension stroke of the second cylinder 15, the greater the cutting pressure, and the higher the pressure value fed back by the miniature pressure sensor 20. Maintaining the required cutting pressure prevents glass breakage and edge chipping due to improper cutting pressure, and also helps ensure cutting quality. Furthermore, the miniature pressure sensor 20 allows for adjustment of the cutting pressure based on different glass thicknesses or shapes, enabling the same roller-type glass cutter to adapt to various glass thicknesses and shapes.

[0041] After the roller glass cutter 11 completes the moving cut on the glass, the telescopic rod 15-1 of the second cylinder 15 retracts, and the end of the telescopic rod 15-1 no longer presses down on the micro pressure sensor 20. Under the tension of the tension spring 17, the cutter shaft 5 rises, and the roller glass cutter 11 moves away from the glass and retracts.

[0042] As can be seen, a glass cutting device with a switching function has a roller-type glass cutter and two cylinders. It can switch between the two cylinders to adapt to glass of different thicknesses, eliminating the need for time-consuming and laborious disassembly and replacement of the entire cutting device with a new one to accommodate different thicknesses of glass, or the need for time-consuming and laborious replacement of glass cutters of different specifications. Alternatively, it can be switched to adapt to glass of different shapes.

[0043] It should be noted that, depending on the actual situation, other types of glass cutters can be used instead of roller glass cutters.

[0044] It should be noted that when implementing the basic switching function by selecting one of the first cylinder and the second cylinder, the miniature pressure sensor 20 may not be required.

Claims

1. A glass cutting apparatus, characterized by, The glass cutting device comprises a base plate, a second cylinder support, a second cylinder, a linear bearing seat, a linear bearing, a tension spring, a knife shaft, a micro pressure sensor, a glass knife and a spring connecting seat, the second cylinder support is fixedly connected with the base plate, the second cylinder is fixedly connected with the second cylinder support, the linear bearing seat is fixedly connected with the base plate, the linear bearing is connected with the linear bearing seat, the knife shaft is connected with the linear bearing, the glass knife is connected with the lower end of the knife shaft, the micro pressure sensor is fixedly connected with the upper end of the knife shaft, the end of the telescopic rod of the second cylinder abuts against the micro pressure sensor, the upper end of the tension spring is connected with the linear bearing seat, the spring connecting seat is fixedly connected with the glass knife through a screw, and the lower end of the tension spring is connected with the screw.

2. The glass cutting apparatus of claim 1, wherein, The glass cutting device further comprises an electric proportional valve for adjusting the action stroke of the second cylinder.

3. The glass cutting apparatus of claim 2, wherein, The glass cutting device further comprises a controller for controlling the electric proportional valve according to the signal fed back by the micro pressure sensor.

4. The glass cutting apparatus according to claim 1, 2 or 3, characterized in that, The glass cutting device further comprises an induction sheet and a groove type photoelectric sensor, the induction sheet is fixedly connected with the spring connecting seat, and the groove type photoelectric sensor is fixedly connected with the linear bearing seat, in the initial state, the induction sheet is located in the groove of the groove type photoelectric sensor.

5. The glass cutting apparatus according to claim 1, 2 or 3, wherein, The glass cutting device further comprises a guide rod, the upper end of the guide rod is fixedly connected with the linear bearing seat, the guide rod passes through the spring connecting seat, and the spring connecting seat can slide along the guide rod.

6. The glass cutting apparatus according to claim 1, 2 or 3, wherein, The glass knife is a roller type glass knife.

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