Laser measurement device and laser measurement method for roller shutter door profile

Abstract

The invention discloses a roller shutter door profile laser measurement device and a laser measurement method thereof, and relates to the technical field of laser measurement, the roller shutter door profile laser measurement device comprises a support frame, a first motor and a conveying roller, the first motor is fixed on the support frame, the conveying roller is fixed at the output end of the first motor, and the conveying roller is connected to the support frame through a bearing; a plurality of conveying rollers are arranged on the supporting frame, a sectional material body is placed on the conveying rollers, and a fixing frame is further fixed to the supporting frame. And the limiting mechanism is used for guiding and limiting the profile bodies with different widths. According to the roller shutter door section bar laser measurement device and the laser measurement method thereof, through arranging a mechanical linkage device of the limiting mechanism and the laser detection mechanism, limiting adjustment and movement distance adjustment of the laser range finder are synchronously realized, so that when the roller shutter door section bar laser measurement device switches section bars of different specifications, complex electrical parameter setting or program adjustment is not needed, and the switching efficiency is improved. And the production changing time is greatly shortened, and the flexibility and the automation degree of the production line are improved.

Description

Technical Field

[0001] This invention relates to the field of laser measurement technology, specifically to a laser measurement device and method for roller shutter door profiles. Background Technology

[0002] As the core component of roller shutter doors, the surface flatness and dimensional accuracy of the roller shutter profile directly determine the final product's sealing performance, aesthetics, and service life. During the production process, improper extrusion, cooling, or other processes may cause defects such as bending, twisting, or localized unevenness in the profile. Therefore, comprehensive quality inspection before leaving the factory is crucial.

[0003] Traditional inspection methods rely heavily on manual sampling using tools such as calipers and levels. This approach is inefficient, subjective, and prone to missed inspections, making it difficult to meet the stringent quality control requirements of modern large-scale production. In recent years, laser measurement technology has been introduced into the industrial inspection field due to its high precision and non-contact characteristics. However, existing laser measurement equipment typically has certain limitations.

[0004] 1. The measurement path or range of existing laser measurement equipment is often fixed. When switching to profiles of different widths, it is necessary to stop the machine and reset the scanning parameters or position of the equipment, which is cumbersome and seriously affects production efficiency.

[0005] 2. Common equipment only has detection functions. After defects are found, manual marking and positioning are still required. It cannot achieve integrated and automated operation of detection and marking, which is not conducive to the continuous and efficient operation of the production line. Summary of the Invention

[0006] The purpose of this invention is to provide a laser measuring device and laser measuring method for roller shutter door profiles, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a laser measuring device for roller shutter door profiles, comprising a support frame, a first motor and a conveying roller, wherein the first motor is fixed on the support frame, the output end of the first motor is fixed to the conveying roller, the conveying roller bearing is connected to the support frame, and a plurality of conveying rollers are provided on the support frame, the profile body is placed on the conveying roller, and a fixing frame is also fixed on the support frame;

[0008] A limiting mechanism is used to guide and limit the profile bodies of different widths, and the limiting mechanism is installed on the support frame;

[0009] The laser inspection mechanism, through linkage with the limiting mechanism, achieves synchronous adjustment, thereby adapting to the inspection of profile bodies of different widths. The laser inspection mechanism is mounted on a fixed frame.

[0010] The marking mechanism is used to automatically mark the deformation position of the profile body, and the marking mechanism is connected to the laser detection mechanism.

[0011] Preferably, a drive wheel is fixed on the conveying roller, and two adjacent drive wheels are connected by a belt to achieve transmission. Through the above structure, multiple conveying rollers can rotate synchronously, thereby providing a basic guarantee for the stable conveying of the profile body.

[0012] Preferably, the limiting mechanism includes a bidirectional threaded rod connected to the support frame by a bearing, and the bidirectional threaded rod is threadedly connected to the movable plate. Rotatable limiting rollers are evenly installed on the movable plate, and the upper end face of the limiting roller is higher than the upper end face of the conveying roller. The movable plate is slidably connected to the guide rod, and the guide rod is symmetrically fixed on the support frame. Through the above structure, the position adjustment function of the front and rear sets of limiting rollers can be realized to adapt to the limiting of profile bodies of different widths, effectively improving the adaptability of the device.

[0013] Preferably, the laser detection mechanism includes a second motor fixed on a fixed frame, and the output end of the second motor is fixed to the rotating shaft. The rotating shaft bearing is on the fixed frame, and a circular plate is fixed at the lower end of the rotating shaft. Through the above structure, the rotation of the circular plate can be guaranteed, thereby providing a basic guarantee for the reciprocating motion of the laser rangefinder in the subsequent detection process.

[0014] Preferably, an inverted truncated cone is slidably connected to the rotating shaft, and a first spring is fixed between the inverted truncated cone and the fixed frame. Vertical rods are also symmetrically fixed to the inverted truncated cone, and the vertical rods are slidably connected to the fixed frame. One end of the inverted truncated cone contacts and slides with the U-shaped rod, and the other end of the U-shaped rod is fixed to the movable plate. The U-shaped rod is slidably connected to the fixed frame and the support frame. Through the sliding action between the U-shaped rod and the inverted truncated cone and the elastic action of the first spring, the height of the inverted truncated cone can be adjusted. Combined with the sliding action between the vertical rod and the fixed frame, the stability of the movement of the inverted truncated cone can be ensured.

[0015] Preferably, a sphere is slidably connected to the inverted circular platform, and the sphere is rotatably connected to one end of the connecting rod, while the other end of the connecting rod is rotatably connected to the slider. At the same time, the slider and the circular plate are slidably connected. When the inverted circular platform moves, the position of the slider can be adjusted in conjunction with the transmission action of the connecting rod, thereby adjusting the rotation diameter of the convex shaft, and further adjusting the moving distance of the laser rangefinder to adapt to the detection of profile bodies of different widths.

[0016] Preferably, a convex shaft is fixed at the lower end of the slider, and the convex shaft is slidably connected to the slide plate. The slide plate is also slidably connected to the fixed rod. The fixed rod is symmetrically fixed on the fixed frame. A fixed plate is fixed to the lower end face of the slide plate, and a laser rangefinder is fixed to the lower end face of the fixed plate. Through the sliding action between the convex shaft and the slide plate, a basic force can be provided for the reciprocating movement of the laser rangefinder. Combined with the sliding guiding action between the slide plate and the fixed rod, the stability of the slide plate movement can be ensured.

[0017] Preferably, the marking mechanism includes a cylinder fixed to the lower end face of the fixed plate, and the cylinder is slidably connected to the slide rod. A permanent magnet is fixed to the upper end of the slide rod, and a second spring is fixed between the permanent magnet and the cylinder. The permanent magnet and the electromagnet form a magnetic repulsion structure, and the electromagnet is fixed inside the cylinder. Through the magnetic repulsion between the permanent magnet and the electromagnet, a basic force can be provided for the movement of the slide rod, ensuring the normal operation of the device.

[0018] Preferably, an ink cartridge is fixed to the lower end of the slide rod, and an inlet is provided on the upper surface of the ink cartridge, while an outlet is provided on the lower side of the ink cartridge. The outlet is in contact with the coating roller, and the bearing of the coating roller is connected to the ink cartridge. Through the above structure, the location of defects in the profile body can be marked so that they can be distinguished later.

[0019] A laser measurement method for roller shutter door profiles, the specific steps of which are as follows:

[0020] Step 1: First, adjust the distance between the front and rear sets of limiting rollers according to the width of the profile body. The limiting rollers guide and limit the profile body. During the adjustment of the limiting roller position, the position of the fixing rod is adjusted simultaneously. With the help of the first spring and the connecting rod, the position of the slider and the cam shaft can be adjusted, thereby adjusting the rotation diameter of the cam shaft and thus adjusting the moving distance of the laser rangefinder. Then, it can automatically adapt to profile bodies of different widths for detection.

[0021] Step 2: The profile body is slowly moved from left to right by the conveyor rollers. The circular plate drives the cam shaft to rotate, so that the slide plate, the fixed plate and the laser rangefinder move back and forth in an orderly manner, so that the laser rangefinder can detect the flatness of the profile body surface.

[0022] Step 3: During the inspection process, when a defect in the flatness of the profile body surface is detected, the controller controls the electromagnet to start, so that the electromagnet and the permanent magnet repel each other, thereby causing the slide bar, ink box and coating roller to move down. Through the contact between the coating roller and the profile body, the location of the defect in the profile body can be marked for subsequent differentiation.

[0023] Step 4: After the inspection is completed, the profile body can be transferred using a robotic arm.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The laser measurement device and method for the roller shutter door profile, through the mechanical linkage between the limiting mechanism and the laser detection mechanism, synchronously realizes the adjustment of the limit and the movement distance of the laser rangefinder. This allows the equipment to switch between different specifications of profiles without the need for complex electrical parameter settings or program adjustments, greatly shortening the changeover time and improving the flexibility and automation of the production line. Furthermore, by combining the reciprocating linear motion of the laser rangefinder with the uniform forward motion of the profile, the laser point forms a Z-shaped scanning path on the profile surface. Compared with traditional single-line scanning or fixed-point sampling inspection, this detection path can perform large-scale, high-density full-coverage measurement of the profile surface, effectively avoiding missed detections, greatly improving the defect detection rate, and ensuring the comprehensiveness and reliability of the inspection.

[0026] 2. The laser measuring device and method for the roller shutter door profile, by setting up a marking mechanism, can trigger the electromagnet to automatically mark the defect location with ink the moment the laser rangefinder detects dimensional deviations (unevenness). This seamlessly connects the detection and marking processes, eliminating the need for subsequent manual search and location of defects. It greatly facilitates the rapid sorting and subsequent repair of non-conforming products, and realizes an automated closed loop in the quality control process. Attached Figure Description

[0027] Figure 1 This is a frontal three-dimensional structural diagram of the device of the present invention;

[0028] Figure 2 This is a frontal three-dimensional structural diagram of the limiting mechanism and the fixing frame of the present invention;

[0029] Figure 3 This is a bottom-view three-dimensional structural diagram of the fixing frame and laser detection mechanism of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the circular plate of the present invention;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the cylindrical cross-section of the present invention.

[0032] In the diagram: 1. Support frame; 2. First motor; 3. Conveyor roller; 301. Transmission wheel; 302. Belt; 4. Profile body; 5. Limiting mechanism; 501. Bidirectional threaded rod; 502. Movable plate; 503. Limiting roller; 504. Guide rod; 6. Fixed frame; 7. Laser detection mechanism; 701. Second motor; 702. Rotating shaft; 703. Circular plate; 704. Inverted frustum; 705. First spring; 706. Vertical rod; 707. U-shaped rod; 708. Sphere; 709. Connecting rod; 710. Slider; 711. Convex shaft; 712. Slide plate; 713. Fixed rod; 714. Fixed plate; 715. Laser rangefinder; 8. Marking mechanism; 801. Cylinder; 802. Slide rod; 803. Permanent magnet; 804. Second spring; 805. Electromagnet; 806. Ink cartridge; 807. Liquid inlet; 808. Liquid outlet; 809. Coating roller. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-5 The present invention provides a technical solution: a laser measuring device for roller shutter door profiles, including a support frame 1, a first motor 2 and a conveying roller 3. The first motor 2 is fixed on the support frame 1, and the output end of the first motor 2 is fixed to the conveying roller 3. The conveying roller 3 is connected to the support frame 1 by a bearing, and several conveying rollers 3 are arranged on the support frame 1. The profile body 4 is placed on the conveying roller 3, and a fixing frame 6 is also fixed on the support frame 1.

[0035] The limiting mechanism 5 is used to guide and limit the profile body 4 of different widths. The limiting mechanism 5 is installed on the support frame 1.

[0036] The laser inspection mechanism 7 achieves synchronous adjustment through linkage with the limiting mechanism 5, thereby adapting to the inspection of profile bodies 4 of different widths. The laser inspection mechanism 7 is installed on the fixed frame 6.

[0037] The marking mechanism 8 is used to automatically mark the deformation position of the profile body 4. The marking mechanism 8 is connected to the laser detection mechanism 7.

[0038] The limiting mechanism 5 includes a bidirectional threaded rod 501 connected to the support frame 1 by a bearing, and the bidirectional threaded rod 501 is threadedly connected to the movable plate 502. Rotatable limiting rollers 503 are evenly installed on the movable plate 502. At the same time, the upper end face of the limiting roller 503 is higher than the upper end face of the conveying roller 3. The movable plate 502 is slidably connected to the guide rod 504, and the guide rod 504 is symmetrically fixed on the support frame 1.

[0039] When using laser measuring equipment with this roller shutter door profile, such as Figures 1-5 As shown, firstly, the distance between the front and rear sets of limiting rollers 503 is adjusted according to the width of the profile body 4. By rotating the bidirectional threaded rod 501, and with the threaded connection between the bidirectional threaded rod 501 and the movable plate 502, the front and rear movable plates 502 are moved. With the sliding guidance between the movable plate 502 and the guide rod 504, the stability of the movement of the movable plate 502 can be ensured, thereby realizing the adjustment of the distance between the front and rear movable plates 502, and further realizing the adjustment of the distance between the front and rear sets of limiting rollers 503, ensuring that the distance between the front and rear sets of limiting rollers 503 is equal to the width of the profile body 4.

[0040] A transmission wheel 301 is fixed on the conveyor roller 3, and two adjacent transmission wheels 301 are connected by a belt 302 to achieve transmission; the laser detection mechanism 7 includes a second motor 701 fixed on the fixed frame 6, and the output end of the second motor 701 is fixed to the rotating shaft 702, and the rotating shaft 702 is bearing on the fixed frame 6, while a circular plate 703 is fixed to the lower end of the rotating shaft 702; an inverted frustum 704 is slidably connected to the rotating shaft 702, and a first spring 705 is fixed between the inverted frustum 704 and the fixed frame 6, and vertical rods 706 are symmetrically fixed on the inverted frustum 704, while the vertical rods 706 are slidably connected to the fixed frame 6, and one end of the inverted frustum 704 contacts and slides with the U-shaped rod 707, and the other end of the U-shaped rod 707... One end is fixed to the movable plate 502, and the U-shaped rod 707 is slidably connected to the fixed frame 6 and the support frame 1; a ball 708 is slidably connected to the inverted frustum 704, and the ball 708 is rotatably connected to one end of the connecting rod 709, and the other end of the connecting rod 709 is rotatably connected to the slider 710, while the slider 710 is slidably connected to the circular plate 703; a convex shaft 711 is fixed to the lower end of the slider 710, and the convex shaft 711 is slidably connected to the slide plate 712, and the slide plate 712 is slidably connected to the fixed rod 713, while the fixed rod 713 is symmetrically fixed to the fixed frame 6, and a fixed plate 714 is fixed to the lower end face of the slide plate 712, and a laser rangefinder 715 is fixed to the lower end face of the fixed plate 714;

[0041] When the movable plate 502 moves, it synchronously drives the U-shaped rod 707 to move. The first spring 705 is in a contracted state. When the distance between the two movable plates 502 increases, the distance between the two U-shaped rods 707 also increases. Combined with the elasticity of the first spring 705, this causes the inverted frustum 704 to move downwards under force. The sliding action between the vertical rod 706 and the fixed frame 6 ensures the stability of the inverted frustum 704's movement. When the inverted frustum 704 moves downwards under force, the transmission action of the connecting rod 709 further facilitates... The slider 710 slides outward from the circular plate 703, simultaneously driving the convex shaft 711 to move, thereby increasing the distance between the convex shaft 711 and the center of the circular plate 703, and thus increasing the rotation diameter of the convex shaft 711. When the convex shaft 711 rotates in the future, in conjunction with the sliding action between the convex shaft 711 and the slide plate 712, the moving distance of the slide plate 712, the fixed plate 714 and the laser rangefinder 715 is increased, thereby ensuring that the moving distance of the laser rangefinder 715 can automatically adapt to the profile body 4 of different widths for detection;

[0042] When the distance between the two movable plates 502 decreases, the distance between the two U-shaped rods 707 at the front and rear also decreases. Through the sliding action between the U-shaped rods 707 and the inverted frustum 704, the inverted frustum 704 is forced to move upward. According to the above principle, when the inverted frustum 704 moves upward, in conjunction with the transmission action of the connecting rod 709, the slider 710 slides towards the center of the circular plate 703, thereby reducing the subsequent rotation diameter of the convex shaft 711. This, in turn, reduces the moving distance of the slide plate 712, the fixed plate 714, and the laser rangefinder 715, thus ensuring that the moving distance of the laser rangefinder 715 can automatically adapt to the profile body 4 of different widths for detection.

[0043] After the device adjustment is completed, when inspecting the profile body 4, the profile body 4 is placed on the conveyor roller 3, and at this time the profile body 4 is located between the front and rear sets of limit rollers 503. By starting the first motor 2, the conveyor roller 3 can be driven to rotate. With the transmission action between the transmission wheel 301 and the belt 302, multiple conveyor rollers 3 rotate synchronously. Through the action of the conveyor roller 3, the profile body 4 can be driven to move from left to right. At this time, the second motor 701 is started synchronously. The second motor 701 can drive the circular plate 703, connecting rod 709, slider 710 and cam shaft 711 to rotate. At this time, through the sliding action between the ball 708 and the inverted frustum 704, the normal rotation of the connecting rod 709, slider 710 and cam shaft 711 can be ensured. When shaft 711 rotates, the sliding action between the cam shaft 711 and the slide plate 712 causes the slide plate 712, the fixed plate 714, and the laser rangefinder 715 to move back and forth in an orderly manner. The sliding guide action between the slide plate 712 and the fixed rod 713 ensures the stability of the movement of the slide plate 712, the fixed plate 714, and the laser rangefinder 715. Through the back-and-forth reciprocating movement of the laser rangefinder 715 and the left-to-right movement of the profile body 4, the laser rangefinder 715 moves in a Z-shape on the profile body 4, thereby effectively realizing the multi-point detection function of the profile body 4. By detecting the change in distance between the laser rangefinder 715 and the profile body 4, the surface flatness of the profile body 4 can be detected, ensuring the production quality of the profile body 4.

[0044] The marking mechanism 8 includes a cylinder 801 fixed to the lower end face of the fixing plate 714, and the cylinder 801 is slidably connected to the slide rod 802. A permanent magnet 803 is fixed to the upper end of the slide rod 802, and a second spring 804 is fixed between the permanent magnet 803 and the cylinder 801. The permanent magnet 803 and the electromagnet 805 form a magnetic repulsion structure, and the electromagnet 805 is fixed inside the cylinder 801. An ink box 806 is fixed to the lower end of the slide rod 802, and an inlet 807 is provided on the upper end face of the ink box 806. An outlet 808 is provided on the lower side of the ink box 806, and the outlet 808 contacts the coating roller 809. The coating roller 809 is connected to the ink box 806 by a bearing.

[0045] During the inspection of the profile body 4, when the distance between the laser rangefinder 715 and the profile body 4 changes beyond the preset value (with a deviation of 1mm / m), the laser rangefinder 715 transmits a signal to the controller. The controller controls the electromagnet 805 to be energized. In conjunction with the magnetic repulsion between the electromagnet 805 and the permanent magnet 803, the slide bar 802 is forced to move downward. At this time, the second spring 804 is forced to contract. When the slide bar 802 moves downward, it simultaneously drives the ink cartridge 806 and the coating roller 809 to move downward. When the coating roller 809 contacts the profile body 4, the ink in the ink cartridge 806 is spread onto the coating roller 809 through the outlet 808 by the rolling of the coating roller 809. Then, the ink is coated onto the profile body 4 by the rolling of the coating roller 809, realizing the automatic marking of the defect position of the profile body 4 for subsequent identification and repair of the defect position of the profile body 4. After the inspection, the profile body 4 continues to move to the right and is finally clamped and transferred by the robot arm for storage.

[0046] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A laser measuring device for roller shutter profiles, comprising a support frame (1), a first motor (2), and a conveying roller (3), wherein the first motor (2) is fixed on the support frame (1), and the output end of the first motor (2) is fixed to the conveying roller (3), the conveying roller (3) is bearing-connected to the support frame (1), and a plurality of conveying rollers (3) are provided on the support frame (1), characterized in that: The profile body (4) is placed on the conveying roller (3), and a fixing frame (6) is also fixed on the support frame (1). The limiting mechanism (5) is used to guide and limit the profile body (4) of different widths. The limiting mechanism (5) is installed on the support frame (1). The laser detection mechanism (7) achieves synchronous adjustment through linkage with the limiting mechanism (5), thereby adapting to the detection of profile bodies (4) of different widths. The laser detection mechanism (7) is installed on the fixed frame (6). The marking mechanism (8) is used to automatically mark the deformation position of the profile body (4), and the marking mechanism (8) is connected to the laser detection mechanism (7).

2. The laser measuring device for roller shutter door profiles according to claim 1, characterized in that: The conveying roller (3) is fixed with a transmission wheel (301), and two adjacent transmission wheels (301) are connected by a belt (302) to achieve transmission.

3. The laser measuring device for roller shutter door profiles according to claim 2, characterized in that: The limiting mechanism (5) includes a bidirectional threaded rod (501) with a bearing connected to the support frame (1), and the bidirectional threaded rod (501) is threadedly connected to the movable plate (502). Rotatable limiting rollers (503) are evenly installed on the movable plate (502), and the upper end face of the limiting roller (503) is higher than the upper end face of the conveying roller (3). The movable plate (502) is slidably connected to the guide rod (504), and the guide rod (504) is symmetrically fixed on the support frame (1).

4. The laser measuring device for roller shutter door profiles according to claim 3, characterized in that: The laser detection mechanism (7) includes a second motor (701) fixed on a fixed frame (6), and the output end of the second motor (701) is fixed to the rotating shaft (702), and the rotating shaft (702) is borne on the fixed frame (6), while a circular plate (703) is fixed at the lower end of the rotating shaft (702).

5. The laser measuring device for roller shutter door profiles according to claim 4, characterized in that: A truncated cone (704) is slidably connected to the rotating shaft (702), and a first spring (705) is fixed between the truncated cone (704) and the fixed frame (6). Vertical rods (706) are also symmetrically fixed on the truncated cone (704). The vertical rods (706) are slidably connected to the fixed frame (6). The truncated cone (704) slides in contact with one end of the U-shaped rod (707), and the other end of the U-shaped rod (707) is fixed on the movable plate (502). The U-shaped rod (707) is slidably connected to the fixed frame (6) and the support frame (1).

6. The laser measuring device for roller shutter door profiles according to claim 5, characterized in that: A ball (708) is slidably connected to the inverted frustum (704), and one end of the ball (708) is rotatably connected to the connecting rod (709), while the other end of the connecting rod (709) is rotatably connected to the slider (710), and the slider (710) is slidably connected to the circular plate (703).

7. The laser measuring device for roller shutter door profiles according to claim 6, characterized in that: The lower end of the slider (710) is fixed with a convex shaft (711), and the convex shaft (711) is slidably connected to the slide plate (712). The slide plate (712) is slidably connected to the fixing rod (713). The fixing rod (713) is symmetrically fixed on the fixing frame (6). The lower end face of the slide plate (712) is fixed with a fixing plate (714), and the lower end face of the fixing plate (714) is fixed with a laser rangefinder (715).

8. The laser measuring device for roller shutter door profiles according to claim 7, characterized in that: The marking mechanism (8) includes a cylinder (801) fixed to the lower end face of the fixing plate (714), and the cylinder (801) and the slide rod (802) are slidably connected. A permanent magnet (803) is fixed at the upper end of the slide rod (802), and a second spring (804) is fixed between the permanent magnet (803) and the cylinder (801). The permanent magnet (803) and the electromagnet (805) form a magnetic repulsion structure, and the electromagnet (805) is fixed inside the cylinder (801).

9. The laser measuring device for roller shutter door profiles according to claim 8, characterized in that: The lower end of the slide bar (802) is fixed with an ink box (806), and the upper surface of the ink box (806) is provided with an inlet (807), and the lower side of the ink box (806) is provided with an outlet (808). At the same time, the outlet (808) is in contact with the coating roller (809), and the coating roller (809) is connected to the ink box (806) by a bearing.

10. A laser measurement method for roller shutter door profiles, applied to the laser measurement device for roller shutter door profiles as described in claim 9, characterized in that, The specific steps are as follows: Step 1: First, adjust the distance between the front and rear sets of limiting rollers (503) according to the width of the profile body (4). The limiting rollers (503) are used to guide and limit the profile body (4). During the adjustment of the position of the limiting rollers (503), the position of the fixing rod (713) is adjusted simultaneously. With the help of the first spring (705) and the connecting rod (709), the position of the slider (710) and the cam shaft (711) can be adjusted, thereby realizing the adjustment of the rotation diameter of the cam shaft (711), and then realizing the adjustment of the moving distance of the laser rangefinder (715), and then automatically adapting to the profile body (4) of different widths for detection. Step 2: The profile body (4) is slowly moved from left to right by the conveying roller (3), and the circular plate (703) drives the convex shaft (711) to rotate, so that the sliding plate (712), the fixing plate (714) and the laser rangefinder (715) move back and forth in an orderly manner, so that the laser rangefinder (715) can detect the surface flatness of the profile body (4); Step 3: During the inspection process, when a defect in the surface flatness of the profile body (4) is detected, the controller controls the electromagnet (805) to start, so that the electromagnet (805) and the permanent magnet (803) repel each other magnetically, thereby causing the slide bar (802), ink cartridge (806) and coating roller (809) to move down. Through the contact between the coating roller (809) and the profile body (4), the defect location of the profile body (4) can be marked for subsequent differentiation; Step 4: After the inspection is completed, the profile body (4) can be transferred by a robotic arm.

Images