Laser cutting device for LED flexible display screen

Abstract

The utility model discloses an LED flexible display screen laser cutting device which comprises an I-shaped base and two inverted-U-shaped vertical plates arranged on one side of the I-shaped base and used for supporting an LED flexible display screen workpiece, and a concentric-square-shaped frame is fixed to the outer walls of the opposite sides of the two inverted-U-shaped vertical plates. Flexible screen positioning tools are installed on the outer walls of the sides, away from each other, of the two inverted-U-shaped vertical plates, a lower active exhaust structure is arranged at the bottom end of the concentric-square-shaped frame, a lead screw three-axis moving unit is installed at the top end of the I-shaped base, and a laser cutter is installed at the Z-axis moving end of the lead screw three-axis moving unit. The position of the laser cutter in the space can be accurately controlled through the lead screw three-axis moving unit, high-precision cutting of workpieces with complex shapes and large sizes is achieved, the cutting accuracy and consistency are guaranteed, waste gas generated in the cutting process can be effectively exhausted through a lower active exhaust structure, and the cutting efficiency is improved. And the residence time and the leakage amount of the waste gas in the cutting working area are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible screen processing, in particular to a laser cutting device for a LED flexible display screen. Background Art

[0002] LED flexible display is a display that can be bent and folded, and is composed of many LED lights. Its function is to display images and videos on surfaces of various shapes and curves, and is suitable for billboards, stage backgrounds, shopping mall windows and other occasions. The laser cutting device for LED flexible display is a device specifically used to cut LED flexible display. Its main function is to accurately cut the substrate and lamp beads of the LED flexible display to meet the needs of different shapes and sizes. When it is working, the laser beam generated by the laser generator is focused into a high-energy light spot through the optical system, and then the movement trajectory of the laser is controlled by the motion control system to accurately cut the substrate and lamp beads of the LED flexible display;

[0003] For example, a laser cutting device for a LED flexible display screen disclosed in the authorization announcement number CN215034566U includes a base, two sets of fixed plates, two sets of support plates, a motor, a first bevel gear, two sets of second bevel gears, two sets of cylindrical blocks, two sets of rotating shafts, two sets of gears, two sets of racks, two sets of moving blocks, two sets of T-shaped slide blocks, two sets of laser cutters, two sets of laser cutting heads, a cutting platform, a fixed component and a flexible display screen body. The two sets of fixed plates are symmetrically fixed on the left and right sides of the top of the base, and the two sets of support plates are fixed between the two sets of fixed plates, which realizes bidirectional alignment of the flexible display screen. The display screen body is cut synchronously, which shortens the cutting time. However, this technical solution mainly realizes the single-axis horizontal movement function of the upper and lower laser cutters during use, and its spatial movement range is quite limited. When processing workpieces with complex shapes or large sizes, workers are required to move and adjust the LED flexible display screen multiple times to complete the cutting task, resulting in low cutting efficiency. In addition, when exhausting the exhaust gas from the bottom of the workpiece, it is only handled by a vacuum pipe, and the range of action of the vacuum pipe is limited, which will cause some exhaust gas and dust to remain around the cutting area. Utility Model Content

[0004] The purpose of the utility model is to provide a laser cutting device for a LED flexible display screen, which controls the three-axis spatial position of the laser cutter through a screw three-axis moving unit, and adds a lower active exhaust structure under the LED flexible display screen to be cut, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting device for a LED flexible display screen, comprising an I-shaped base and two inverted U-shaped uprights arranged on one side of the I-shaped base for supporting the LED flexible display screen workpiece, a circular frame is fixed on the outer wall on the side opposite to each other of the two inverted U-shaped uprights, and flexible screen positioning tooling is installed on the outer walls on the side away from each other of the two inverted U-shaped uprights, and a lower active exhaust structure is arranged at the bottom end of the circular frame, a screw three-axis moving unit is installed at the top of the I-shaped base, and a laser cutter is installed at the Z-axis moving end of the screw three-axis moving unit, and a PLC control panel is installed on the outer wall on the side of the I-shaped base away from the inverted U-shaped uprights, and the output end of the PLC control panel is electrically connected to the input end of the screw three-axis moving unit, the laser cutter, the flexible screen positioning tooling and the lower active exhaust structure.

[0006] Preferably, the screw three-axis moving unit includes a Y-axis screw linear module installed in parallel on the top of the I-shaped base, and an X-axis screw linear module installed on the moving end of the Y-axis screw linear module, the movement extension lines of the Y-axis screw linear module and the X-axis screw linear module are perpendicular to each other, the moving end of the X-axis screw linear module is installed with a Z-axis screw linear module, and the laser cutter is installed on the moving end of the Z-axis screw linear module.

[0007] Preferably, the top plane height of the circular frame is lower than the top plane height of the inverted U-shaped vertical plate, and the circular frame is made of stainless steel.

[0008] Preferably, the flexible screen positioning tooling includes a cylinder installed on the outer wall of one side of the inverted U-shaped vertical plate, and a silicone pressure plate installed on the top end of the cylinder piston rod, and the lower surface of the silicone pressure plate is opposite to the top plane of the inverted U-shaped vertical plate.

[0009] Preferably, right-angle sliding sleeves are fixed on both sides of the bottom end of the silicone pressure plate, and one side outer wall of the right-angle sliding sleeve is slidably matched with one side outer wall of the inverted U-shaped vertical plate.

[0010] Preferably, the downward active exhaust structure includes a guide cover installed at the bottom of the circular frame, and a ventilation plate installed at the bottom of the guide cover. The circular frame, the guide cover and the ventilation plate are connected to each other. A motor is installed at the center position of the top of the ventilation plate, and an exhaust fan unit is installed at the output end of the motor. An exhaust pipe is fixed to the bottom end of the ventilation plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the LED flexible display screen laser cutting device is equipped with a screw three-axis moving unit and a circular frame and other structures that cooperate with each other. The screw three-axis moving unit can accurately control the position of the laser cutter in space, which can achieve high-precision cutting of complex shapes and large-size workpieces, ensure the accuracy and consistency of cutting, and use the lower active exhaust structure to effectively remove the exhaust gas generated during the cutting process, reducing the residence time and leakage of the exhaust gas in the cutting work area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a side view structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the utility model;

[0016] In the figure: 1. I-shaped base; 2. Screw three-axis moving unit; 201. Y-axis screw linear module; 202. X-axis screw linear module; 203. Z-axis screw linear module; 3. PLC control panel; 4. Laser cutter; 5. Inverted U-shaped vertical plate; 6. Ring frame; 7. Flexible screen positioning tooling; 701. Cylinder; 702. Silicone pressure plate; 703. Right-angle sliding sleeve; 8. Lower active exhaust structure; 801. Air guide cover; 802. Ventilation disc; 803. Exhaust pipe; 804. Motor; 805. Exhaust fan unit. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides an embodiment: a laser cutting device for a LED flexible display screen, comprising an I-shaped base 1 and two inverted U-shaped upright plates 5 for supporting a workpiece of an LED flexible display screen, arranged on one side of the I-shaped base 1, a circular frame 6 is fixed on the outer wall of the opposite side of the two inverted U-shaped upright plates 5, and a flexible screen positioning tool 7 is installed on the outer wall of the side away from each other of the two inverted U-shaped upright plates 5, and a lower active exhaust structure 8 is arranged at the bottom end of the circular frame 6, and the lower active exhaust structure 8 actively generates suction under the LED flexible display screen, so as to mainly remove the exhaust gas missed under the LED flexible display screen. A screw three-axis moving unit 2 is installed at the top of the I-shaped base 1, and a laser cutter 4 is installed at the Z-axis moving end of the screw three-axis moving unit 2. A PLC control panel 3 is installed on the outer wall of the I-shaped base 1 away from the inverted U-shaped vertical plate 5. The output end of the PLC control panel 3 is electrically connected with the screw three-axis moving unit 2, the laser cutter 4, the flexible screen positioning tooling 7 and the input end of the lower active exhaust structure 8. The PLC control panel 3 controls the movement trajectory of the screw three-axis moving unit 2, and then uses the screw three-axis moving unit 2 to drive the laser cutter 4 to move in three-dimensional space;

[0019] The screw three-axis moving unit 2 includes a Y-axis screw linear module 201 installed in parallel on the top of the I-shaped base 1, and an X-axis screw linear module 202 installed on the moving end of the Y-axis screw linear module 201. The movement extension lines of the Y-axis screw linear module 201 and the X-axis screw linear module 202 are perpendicular to each other. The moving end of the X-axis screw linear module 202 is installed with a Z-axis screw linear module 203. The laser cutter 4 is installed on the moving end of the Z-axis screw linear module 203. During the operation of the screw three-axis moving unit 2, the Y-axis screw linear module 201, the X-axis screw linear module 202, and the Z-axis screw linear module 203 respectively control the position of the laser cutter 4 on the Y, X, and Z axes according to the control signal of the PLC control panel 3, and realize high-precision cutting of complex shapes and large-sized workpieces through the coordinated movement of multiple axes.

[0020] The top plane height of the circular frame 6 is lower than the top plane height of the inverted U-shaped vertical plate 5, and the circular frame 6 is made of a stainless steel member;

[0021] The flexible screen positioning tool 7 includes a cylinder 701 installed on the outer wall of one side of the inverted U-shaped vertical plate 5, and a silicone pressure plate 702 installed on the top of the piston rod of the cylinder 701. The lower surface of the silicone pressure plate 702 is opposite to the top plane of the inverted U-shaped vertical plate 5. When the workpiece is placed on the two inverted U-shaped vertical plates 5, the staff starts the cylinder 701 through the PLC control panel 3 to work, and the cylinder 701 pulls the silicone pressure plate 702 downward, so that the silicone pressure plate 702 presses the top side of the LED flexible display screen. Right-angle sliding sleeves 703 are fixed on both sides of the bottom of the silicone pressure plate 702. The outer wall of one side of the right-angle sliding sleeve 703 and the outer wall of one side of the inverted U-shaped vertical plate 5 are slidably matched. The right-angle sliding sleeve 703 guides and supports the lifting and sliding of the silicone pressure plate 702. The flexible screen positioning tool 7 accurately fixes the flexible screen on the cutting device, reduces the cutting error caused by the position deviation of the workpiece, and thus ensures the cutting accuracy.

[0022] The lower active exhaust structure 8 includes a guide cover 801 installed at the bottom of the circular frame 6, and a ventilation plate 802 installed at the bottom of the guide cover 801. The circular frame 6, the guide cover 801, and the ventilation plate 802 are connected to each other. A motor 804 is installed at the center position of the top of the ventilation plate 802, and an exhaust fan unit 805 is installed at the output end of the motor 804. An exhaust pipe 803 is fixed to the bottom end of the ventilation plate 802. The motor 804 actively drives the exhaust fan unit 805 to rotate, and the exhaust fan unit 805 actively sends the exhaust gas generated by cutting into the exhaust pipe 803, and the exhaust pipe 803 sends it to the external exhaust gas treatment equipment, so as to improve the working environment of personnel by removing the exhaust gas generated during the cutting process.

[0023] When the embodiment of the present application is in use, the staff first places the LED flexible display screen workpiece to be cut on the top of the two inverted U-shaped vertical plates 5. At this time, the circular frame 6 is opposite to the LED flexible display screen. Then, the flexible screen positioning tool 7 is used to apply pressure to the two opposite top sides of the LED flexible display screen, so as to fix and limit the LED flexible display screen, so that the area to be cut of the LED flexible display screen remains in a suspended state. After the LED flexible display screen workpiece is debugged, the staff controls the movement trajectory of the screw three-axis moving unit 2 through the PLC control panel 3, that is, the screw three-axis moving unit 2 is used to drive the laser cutter 4 to move in three-dimensional space. The laser cutter 4 generates a high-energy laser beam and focuses and transmits the laser beam to the cutting position The LED flexible display screen is placed in a non-contact manner to achieve high-speed and high-precision cutting effects. During this process, the staff can synchronously open the lower active exhaust structure 8 through the PLC control panel 3 to work, and the lower active exhaust structure 8 actively generates suction under the LED flexible display screen, so as to actively discharge the exhaust gas missed under the LED flexible display screen. The cutting device uses the screw three-axis moving unit 2 to accurately control the position of the laser cutter 4 in space, so it can achieve high-precision cutting of complex shapes and large-sized workpieces, ensuring the accuracy and consistency of the cutting, and the lower active exhaust structure 8 can effectively remove the exhaust gas generated in the cutting process, reducing the residence time and leakage of the exhaust gas in the cutting work area.

Claims

1. A laser cutting device for LED flexible display screen, Features: The invention comprises an I-shaped base (1) and two inverted U-shaped upright plates (5) arranged on one side of the I-shaped base (1) for supporting a workpiece of an LED flexible display screen; a circular frame (6) is fixed on the outer wall of the two inverted U-shaped upright plates (5) on the side opposite to each other; a flexible screen positioning tool (7) is installed on the outer wall of the two inverted U-shaped upright plates (5) on the side away from each other; a bottom-mounted active exhaust structure (8) is arranged at the bottom end of the circular frame (6); a screw three-axis moving unit (2) is installed on the top end of the I-shaped base (1); a laser cutter (4) is installed on the Z-axis moving end of the screw three-axis moving unit (2); a PLC control panel (3) is installed on the outer wall of the I-shaped base (1) on the side away from the inverted U-shaped upright plates (5); and the output end of the PLC control panel (3) is electrically connected to the screw three-axis moving unit (2), the laser cutter (4), the flexible screen positioning tool (7) and the input end of the bottom-mounted active exhaust structure (8).

2. According to claim 1, a laser cutting device for LED flexible display screen, Features: The screw three-axis moving unit (2) comprises a Y-axis screw linear module (201) installed in parallel at the top of the I-shaped base (1), and an X-axis screw linear module (202) installed at the moving end of the Y-axis screw linear module (201), the extended motion lines of the Y-axis screw linear module (201) and the X-axis screw linear module (202) are perpendicular to each other, the moving end of the X-axis screw linear module (202) is installed with a Z-axis screw linear module (203), and the laser cutter (4) is installed on the moving end of the Z-axis screw linear module (203).

3. According to claim 1, a laser cutting device for LED flexible display screen, Features: The top plane height of the circular frame (6) is lower than the top plane height of the inverted U-shaped vertical plate (5), and the circular frame (6) is made of stainless steel.

4. According to claim 1, a laser cutting device for LED flexible display screen, Features: The flexible screen positioning tool (7) comprises a cylinder (701) installed on the outer wall of one side of the inverted U-shaped vertical plate (5), and a silicone pressure plate (702) installed on the top end of the piston rod of the cylinder (701), and the lower surface of the silicone pressure plate (702) is opposite to the top plane of the inverted U-shaped vertical plate (5).

5. According to claim 4, a laser cutting device for LED flexible display screen, Features: Right-angled sliding sleeves (703) are fixed on both sides of the bottom end of the silicone pressure plate (702), and one side outer wall of the right-angled sliding sleeve (703) is slidably matched with one side outer wall of the inverted U-shaped vertical plate (5).

6. The LED flexible display screen laser cutting device according to claim 1, Features: The lower active exhaust structure (8) comprises a guide cover (801) installed at the bottom end of the circular frame (6), and a ventilation plate (802) installed at the bottom end of the guide cover (801); the circular frame (6), the guide cover (801), and the ventilation plate (802) are interconnected; a motor (804) is installed at the center position of the top end of the ventilation plate (802), and an exhaust fan unit (805) is installed at the output end of the motor (804); and an exhaust pipe (803) is fixed to the bottom end of the ventilation plate (802).

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