Fresnel lens processing mechanism

Abstract

The utility model relates to the technical field of lens manufacturing processes, in particular to a Fresnel lens machining mechanism which comprises a machining base, and an installation support is assembled at one end of the surface of the machining base. In the process that the machining gantry machines materials, an air blower installed in the installation support operates to blow chippings generated by machining towards one side of the collecting frame, the chippings penetrate through the guide channel in the wind direction to enter the discharging bin and finally fall into the garbage collecting container which is regularly replaced below the discharging bin, the influence of chipping splashing is reduced, and the machining efficiency is improved. And meanwhile, the situation that chippings enter the external equipment to affect use is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, specifically to a Fresnel lens processing mechanism. Background Technology

[0002] Rear projection screens project images from a projector, which then pass through the display screen and into the viewer's eyes. They are characterized by large size, high image quality, and slimness in the market. Therefore, the design needs to consider the brightness of the viewing angle, increase image contrast, and solve image distortion problems. Among these, the main function of Fresnel lenses is to collect the light emitted by the projector with a large divergence angle, so that the originally divergent light can be concentrated within the viewer's field of vision, thereby increasing the brightness of the image.

[0003] Publication No. CN208646030U discloses a large-scale Fresnel lens processing device. This device uses cylindrical rollers to roll over a UV-cured transparent plate, resulting in a monolithic Fresnel lens with no splicing marks and excellent optical performance. The height of the cylindrical roller is the radius of the Fresnel lens. By machining a conical roller on an ultra-precision diamond machine, the height of the conical roller can exceed 2 meters. Further rolling with a conical roller yields a Fresnel lens with a diameter exceeding 4 meters, meeting the large-size requirements of projection screens and solar concentrators. However, this device generates debris during processing, and since the moving mechanism is located above the base, debris can easily get into the moving mechanism, posing a risk of wear, blockage, or even equipment damage. Therefore, we propose a Fresnel lens processing mechanism. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a Fresnel lens processing mechanism.

[0005] The technical solution adopted by this utility model to solve its technical problem is a Fresnel lens processing mechanism, including a processing base. One end of the surface of the processing base is equipped with a mounting bracket. A blower is installed inside the mounting bracket by bolts. A collection frame is fixedly connected to the surface of the processing base away from the blower. The side of the collection frame away from the processing base has an integrally constructed guide channel. A discharge bin is installed at the end of the guide channel away from the collection frame.

[0006] The surface of the processing base is provided with a first slide rail. A drive motor is mounted on one side of the first slide rail and on the side wall of the processing base. The power output end of the drive motor passes through the processing base and is equipped with a drive screw. A movable slider is screwed to the outer periphery of the drive screw. An adapter plate is fixedly connected to the top of the movable slider. A processing gantry is detachably installed on the top of the adapter plate by bolts.

[0007] By adopting the above technical solution, when the processing gantry is processing materials, the blower installed in the mounting bracket blows the processing debris toward the collection frame. The debris passes through the guide channel along the wind direction and enters the discharge bin, eventually falling into the regularly replaced waste collection container below it. This reduces the impact of debris splashing and avoids the situation where debris enters the external equipment and affects its use.

[0008] When it is necessary to adjust the displacement of the machining gantry, the built-in transmission device and the transmission motor installed in the upwind direction reduce the impact of debris on the transmission mechanism. At the same time, if debris enters the slide rail, it will directly pass through the slide rail and fall to the ground. Debris falling on the surface of the transmission screw will fall to the ground as it rotates.

[0009] Specifically, the end of the transmission screw away from the transmission motor is rotatably connected to the inner wall of the first slide rail via a rotating connector.

[0010] By adopting the above technical solution, the transmission screw is rotated inside the first slide rail as the transmission motor runs by rotating the connecting piece.

[0011] Specifically, the surface of the processing base is provided with a second slide rail with the same internal structure as the first slide rail, and both ends of the processing gantry are respectively detachably installed on the surface of the adapter plate that is slidably connected inside the first and second slide rails.

[0012] By adopting the above technical solution, after calibrating the motors assembled on the two slide rails, the two motors are controlled to run simultaneously to drive the machining gantry to move through the transmission screw, moving slider and adapter plate.

[0013] Specifically, the processing base has an inclined slide below the guide channel on the side away from the mounting bracket for guiding the sliding of debris.

[0014] By adopting the above technical solution, when debris falls on the surface of the inclined slide, if the wind force is too weak due to equipment obstruction and the debris cannot be blown into the discharge hopper, it will slide into the discharge hopper by gravity and inertia. If there is debris accumulation, it is also convenient for staff to manually clean and push the debris into the discharge hopper.

[0015] Specifically, the power output end of the drive motor is connected to the transmission lead screw via a reducer.

[0016] By adopting the above technical solution, the speed reducer is used to protect the motor from burning out during the process of driving the lead screw to rotate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the technical solution of this application, when the processing gantry is processing materials, the blower installed in the mounting bracket blows the processing debris toward the collection frame. The debris follows the wind direction, passes through the guide channel, enters the discharge bin, and finally falls into the regularly replaced waste collection container below it. This reduces the impact of debris splashing and avoids the situation where debris enters the external equipment and affects its use.

[0019] When it is necessary to adjust the displacement of the machining gantry, the built-in transmission device and the transmission motor installed in the upwind direction reduce the impact of debris on the transmission mechanism. At the same time, if debris enters the slide rail, it will directly pass through the slide rail and fall to the ground. Debris falling on the surface of the transmission screw will fall to the ground as it rotates. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is an isometric view of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the blower and the collection frame on the surface of the processing base of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal connection structure of the first and second slide rails of this utility model;

[0024] In the diagram: 1. Machining base; 2. Mounting bracket; 3. Blower; 4. Collection frame; 5. Guide channel; 6. Discharge bin; 7. Inclined slide rail; 8. First slide rail; 9. Drive motor; 10. Drive screw; 11. Moving slider; 12. Adapter plate; 13. Machining gantry; 14. Rotating connector; 15. Second slide rail. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figure 1-3 This utility model provides a technical solution: a Fresnel lens processing mechanism, including a processing base 1, a mounting bracket 2 is mounted on one end of the surface of the processing base 1, a blower 3 is installed inside the mounting bracket 2 by bolts, a collection frame 4 is fixedly connected to the surface of the processing base 1 away from the blower 3, a guide channel 5 is integrally constructed on the side of the collection frame 4 away from the processing base 1, and a discharge bin 6 is installed at the end of the guide channel 5 away from the collection frame 4.

[0027] A first slide rail 8 is provided on the surface of the processing base 1. A drive motor 9 is mounted on one side of the first slide rail 8 on the side wall of the processing base 1. The power output end of the drive motor 9 passes through the processing base 1 and is equipped with a drive screw 10. A movable slider 11 is screwed to the outer periphery of the drive screw 10. A transition plate 12 is fixedly connected to the top of the movable slider 11. A processing gantry 13 is detachably installed on the top of the transition plate 12 by bolts.

[0028] When in use, during the material processing process of the processing gantry 13, the blower 3 installed in the mounting bracket 2 blows the processing debris toward the collection frame 4. The debris passes through the guide channel 5 along the wind direction and enters the discharge bin 6, eventually falling into the regularly replaced waste collection container below it. This reduces the impact of debris splashing and avoids the situation where debris enters the external equipment and affects its use.

[0029] When it is necessary to adjust the displacement of the machining gantry 13, the influence of debris on the transmission mechanism is reduced by the built-in transmission device and the transmission motor 9 installed in the upwind direction. At the same time, if debris enters the slide rail, it will directly pass through the slide rail and fall to the ground. The debris that falls on the surface of the transmission screw 10 will fall to the ground as it rotates.

[0030] As shown in the figure, the end of the transmission screw 10 away from the transmission motor 9 is rotatably connected to the inner wall of the first slide rail 8 through the rotating connector 14.

[0031] In use, the transmission screw 10 is rotated inside the first slide rail 8 by rotating the connecting piece 14, which is caused by the operation of the transmission motor 9.

[0032] As shown in the figure, the surface of the processing base 1 is provided with a second slide rail 15 that has the same internal structure as the first slide rail 8, and the two ends of the processing gantry 13 are respectively detachably installed on the surface of the adapter plate 12 that is slidably connected inside the first slide rail 8 and the second slide rail 15.

[0033] When in use, after calibrating the motors mounted on the two slide rails, control the two motors to run simultaneously to drive the machining gantry 13 to move through the transmission screw 10, the moving slider 11 and the adapter plate 12.

[0034] As shown in the figure, the side of the processing base 1 away from the mounting bracket 2 is provided with an inclined slide 7 for guiding the sliding of debris below the guide channel 5.

[0035] When in use, when debris falls on the surface of the inclined slide 7, if the wind force is too weak due to the equipment obstruction and the debris cannot be blown into the discharge bin 6, it will slide into the discharge bin 6 by gravity and inertia. If there is debris accumulation, it is also convenient for staff to manually clean and push the debris into the discharge bin 6.

[0036] As shown in the figure, the power output end of the drive motor 9 is connected to the drive screw 10 through a reducer.

[0037] During use, a speed reducer is used to protect the motor from burning out while driving the lead screw 10 to rotate.

[0038] The working principle and usage process of this utility model are as follows: When the processing gantry 13 is processing materials, the blower 3 installed inside the mounting bracket 2 blows the processing debris toward the collection frame 4. The debris follows the wind direction, passes through the guide channel 5, enters the discharge bin 6, and finally falls into the regularly replaced waste collection container below. This reduces the impact of debris splashing and prevents debris from entering the external equipment and affecting its use. When debris falls on the surface of the inclined slide 7, if the wind force is too weak due to equipment obstruction to blow the debris into the discharge bin 6, it slides into the discharge bin 6 by gravity and inertia. If there is debris accumulation, it is also convenient for staff to manually clean and push the debris into the discharge bin 6. Inside, when it is necessary to adjust the displacement of the machining gantry 13, after calibrating the motors assembled on the two slide rails, the two motors are controlled to run simultaneously to drive the machining gantry 13 to move through the transmission screw 10, the moving slider 11 and the adapter plate 12. The reducer is used to protect the motor from burning out during the rotation of the transmission screw 10. The rotating connector 14 is used to make the transmission screw 10 rotate inside the first slide rail 8 as the transmission motor 9 runs. The built-in transmission device and the transmission motor 9 installed in the upwind direction reduce the impact of debris on the transmission mechanism. At the same time, if debris enters the slide rail, it will directly pass through the slide rail and fall to the ground. Debris falling on the surface of the transmission screw 10 will fall to the ground as it rotates.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A Fresnel lens processing mechanism, characterized in that, The system includes a processing base (1), one end of which is fitted with a mounting bracket (2). A blower (3) is installed inside the mounting bracket (2) by bolt clamping. A collection frame (4) is fixedly connected to the surface of the processing base (1) away from the blower (3). A guide channel (5) is integrally constructed on the side of the collection frame (4) away from the processing base (1). A discharge bin (6) is installed at the end of the guide channel (5) away from the collection frame (4). The surface of the processing base (1) is provided with a first slide rail (8). A drive motor (9) is mounted on one side of the first slide rail (8) on the side wall of the processing base (1). The power output end of the drive motor (9) passes through the processing base (1) and is equipped with a drive screw (10). A movable slider (11) is screwed to the outer periphery of the drive screw (10). A transition plate (12) is fixedly connected to the top of the movable slider (11). A processing gantry (13) is detachably installed on the top of the transition plate (12) by bolts.

2. The Fresnel lens processing mechanism according to claim 1, characterized in that, The end of the transmission screw (10) away from the transmission motor (9) is rotatably connected to the inner wall of the first slide rail (8) through a rotating connector (14).

3. The Fresnel lens processing mechanism according to claim 2, characterized in that, The surface of the processing base (1) is provided with a second slide rail (15) that has the same internal structure as the first slide rail (8), and the two ends of the processing gantry (13) are respectively detachably installed on the surface of the adapter plate (12) that is slidably connected inside the first slide rail (8) and the second slide rail (15).

4. The Fresnel lens processing mechanism according to claim 1, characterized in that, The processing base (1) is provided with an inclined slide (7) for guiding the sliding of debris on the side away from the mounting bracket (2) below the guide channel (5).

5. A Fresnel lens processing mechanism according to claim 1, characterized in that, The power output end of the drive motor (9) is connected to the drive screw (10) through a reducer.

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