An elevator door panel flatness detection device

Abstract

The utility model discloses an elevator door plate flatness detection device, including conveyer (1), the top of conveyer (1) is equipped with the horizontal crossbeam (2), be equipped with a plurality of lifting rods (3) on crossbeam (2), a plurality of lifting rods (3) are along the long direction arrangement of crossbeam (2), be equipped with the compression spring (4) of connecting crossbeam (2) on lifting rod (3), be equipped with the limiter (5) on lifting rod (3), the lower end of lifting rod (3) is equipped with the gyro wheel (6), one side of gyro wheel (6) is equipped with ink cartridge (7), be equipped with the water absorption of ink cartridge (7) inside bubble cotton (8), gyro wheel (6) contact bubble cotton (8);The side of ink cartridge (7) towards gyro wheel (6) is equipped with the opening (9), and a part of bubble cotton (8) is contacted gyro wheel (6) after projecting the opening (9) back. The utility model has the advantages of not easy to appear detection error and higher efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of elevator door panel testing equipment, and in particular relates to an elevator door panel flatness testing device. Background Technology

[0002] Elevator door panels, including car door panels and landing door panels, require a certain level of flatness to ensure they do not interfere with other components during operation. Currently, the flatness of door panels is mainly inspected visually in the workshop. A horizontal straightedge is set up, and the door panel is placed against the straightedge. The worker keeps their line of sight at the same height as the top surface of the door panel, looking from one side of the door panel to the other, using the straightedge as a reference to observe whether the door panel has excessive unevenness and whether the flatness is up to standard. However, because the straightedge is separated from the worker by the width of a door panel, the observation is prone to errors, and it requires walking along the length of the door panel for continuous observation, resulting in relatively low inspection efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an elevator door panel flatness detection device. This invention has the advantages of being less prone to detection errors and having high efficiency.

[0004] The technical solution of this utility model is as follows: An elevator door panel flatness detection device includes a conveyor, a horizontal beam above the conveyor, multiple lifting rods on the beam, the lifting rods being arranged along the length of the beam, a compression spring connecting the lifting rod to the beam, a limiter on the lifting rod, a roller at the lower end of the lifting rod, an ink cartridge on one side of the roller, absorbent foam inside the ink cartridge, and the roller contacting the foam.

[0005] In the aforementioned elevator door panel flatness detection device, the ink cartridge has an opening on the side facing the roller, and a portion of the foam extends out of the opening and contacts the roller.

[0006] In the aforementioned elevator door panel flatness detection device, the lifting rod passes through the crossbeam, the upper end of the lifting rod is provided with a limiter, the lower end of the lifting rod is provided with a wheel frame that is rotatably connected to the roller, and a compression spring is provided between the wheel frame and the crossbeam.

[0007] In the aforementioned elevator door panel flatness detection device, the lifting rod has a square cross-section, and the crossbeam has a square hole that mates with the lifting rod. The upper end of the lifting rod is provided with a stud, and the limiter includes a washer fitted on the stud. The upper side of the washer is provided with two nuts, both of which are connected to the stud.

[0008] In the aforementioned elevator door panel flatness testing device, both ends of the crossbeam are equipped with support frames, which are connected to the frame of the conveyor.

[0009] In the aforementioned elevator door panel flatness testing device, the support frame is provided with an elongated hole, and a screw for connecting the frame is provided in the elongated hole.

[0010] In the aforementioned elevator door panel flatness detection device, a rubber ring is provided on the outer circumferential surface of the roller.

[0011] Compared with existing technologies, this invention utilizes a conveyor to drive a door panel through multiple rollers. When the door panel's flatness is substandard, the protruding part of the door panel contacts the corresponding roller, causing the roller to rotate. Simultaneously, the roller transfers ink from the ink cartridge onto the door panel, leaving a mark on the protruding part. This allows workers to directly observe the markings, reducing the likelihood of detection errors and increasing detection efficiency. Therefore, this invention has the advantages of being less prone to detection errors and offering higher efficiency.

[0012] Furthermore, by improving the structure of the limit switch on the lifting rod, the height of the rollers can be finely adjusted, ensuring that all rollers are at the same height and reducing detection errors. By setting the crossbeam on a height-adjustable support frame, the distance between the rollers and the conveyor can be adjusted, making it suitable for detecting door panels of different thicknesses and thus having a wide range of applications. In addition, this invention has a simple structure and relatively low manufacturing cost. Attached Figure Description

[0013] Figure 1 This is a left-side view of the present invention.

[0014] Figure 2 yes Figure 1 Enlarged view at point A.

[0015] Figure 3 This is a front view diagram of the roller.

[0016] Figure 4 This is a top view of the present invention.

[0017] The labels in the attached diagram are: 1-conveyor, 2-beam, 3-lifting rod, 4-compression spring, 5-limiter, 6-roller, 7-ink cartridge, 8-foam, 9-opening, 10-wheel frame, 11-stud, 12-washer, 13-nut, 14-support frame, 15-elongated hole, 16-screw, 17-rubber ring. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: An elevator door panel flatness detection device, such as... Figure 1 As shown, it includes a conveyor 1, which can be a belt conveyor or a roller conveyor, and the conveying is required to be horizontal.

[0020] A horizontal beam 2 is provided above the conveyor 1. The beam 2 is perpendicular to the feeding direction of the conveyor 1. Multiple lifting rods 3 are provided on the beam 2. The lifting rods 3 have a square cross section. The beam 2 has square holes that cooperate with the lifting rods 3, so that the lifting rods 3 are slidably connected to the beam 2. Multiple lifting rods 3 are arranged along the length of the beam 2.

[0021] The lifting rod 3 vertically passes through the crossbeam 2. A stud 11 is located at the upper end of the lifting rod 3, and a limiter 5 is mounted on the stud 11. The limiter 5 includes a washer 12 fitted onto the stud 11, and two nuts 13, each connected to the stud 11, are located on the upper side of the washer 12. The two nuts 13 are locked together. A wheel frame 10 is located at the lower end of the lifting rod 3, and a roller 6 is rotatably connected to the wheel frame 10. A rubber ring 17 is located on the outer circumference of the roller 6. A compression spring 4 is located between the wheel frame 10 and the crossbeam 2. Under the action of the compression spring 4, the washer 12 contacts the top surface of the crossbeam 2, and the lifting rod 3 is at its lowest height.

[0022] Both ends of the crossbeam 2 are provided with support frames 14, and the support frames 14 are provided with vertical elongated holes 15, and screws 16 for connecting the frame are provided in the elongated holes 15.

[0023] A cartridge 7 is provided on one side of the roller 6. The cartridge 7 is filled with non-volatile and dry ink (such as water-based dye containing humectant). The cartridge is fixed between two support frames 14. The side of the cartridge 7 facing the roller 6 has an opening 9. The cartridge 7 contains absorbent foam 8. A part of the foam 8 extends out of the opening 9 and contacts the roller 6.

[0024] Working principle: such as Figure 2 As shown, the axial position of the stud 11 is changed by rotating the nut 13, thereby changing the height of the roller 6. After the height of the roller 6 is adjusted, the two nuts 13 lock each other in place. Adjust the corresponding nuts 13 on each roller 6 in sequence to make the height of each roller 6 consistent.

[0025] After adjusting each nut to the same height, for door panels of different thicknesses, loosen screw 16, change the horizontal height of beam 2, and place the ideal door panel (door panel with high flatness) onto conveyor 1. Roller 6 should maintain a certain gap with the door panel. This gap is the maximum allowable flatness tolerance of the door panel.

[0026] The door panel to be tested is placed on conveyor 1. Conveyor 1 carries the door panel past under roller 6. When the flatness of the door panel is not up to standard, the protruding part will contact the corresponding roller 6. At the contact point, roller 6 rotates, transferring the ink absorbed by foam 8 onto the door panel for later correction. When no ink adheres to any part of the door panel, the flatness of the door panel meets the standard; conversely, when ink adheres to any part of the door panel, it indicates that the flatness does not meet the standard and corresponding correction is required.

[0027] To prevent the ink on rollers 6 from drying out completely, every so often, before the ink dries out, a thicker door panel should be passed under rollers 6 to rotate all rollers 6 and allow new ink to adhere to all rollers 6 again.

[0028] The rubber ring 17 on the outside of the roller 6 increases the friction between the roller 6 and the door panel, making it easier for the roller 6 to rotate smoothly after contacting the door panel, and ensuring the accurate size of the printing and dyeing area.

Claims

1. A device for detecting the flatness of elevator door panels, characterized in that: Includes a conveyor (1), a horizontal beam (2) is provided above the conveyor (1), multiple lifting rods (3) are provided on the beam (2), the multiple lifting rods (3) are arranged along the length of the beam (2), a compression spring (4) is provided on the lifting rod (3) to connect the beam (2), a limiter (5) is provided on the lifting rod (3), a roller (6) is provided at the lower end of the lifting rod (3), an ink cartridge (7) is provided on one side of the roller (6), an absorbent foam (8) is provided inside the ink cartridge (7), and the roller (6) contacts the foam (8).

2. The elevator door panel flatness detection device according to claim 1, characterized in that: The ink cartridge (7) has an opening (9) on the side facing the roller (6), and a part of the foam (8) extends out of the opening (9) and contacts the roller (6).

3. The elevator door panel flatness detection device of claim 1, wherein: The lifting rod (3) passes through the crossbeam (2). The upper end of the lifting rod (3) is provided with a limiter (5), and the lower end of the lifting rod (3) is provided with a wheel frame (10) that is rotatably connected to the roller (6). A compression spring (4) is provided between the wheel frame (10) and the crossbeam (2).

4. The elevator door panel flatness detection device according to claim 3, characterized in that: The lifting rod (3) has a square cross section. The crossbeam (2) has a square hole that matches the lifting rod (3). The upper end of the lifting rod (3) is provided with a stud (11). The limiter (5) includes a washer (12) fitted on the stud (11). The upper side of the washer (12) is provided with two nuts (13) that are both connected to the stud (11).

5. The elevator door panel flatness detection device of claim 1, wherein: Both ends of the crossbeam (2) are provided with support frames (14), which are connected to the frame of the conveyor (1).

6. The elevator door panel flatness detection device of claim 5, wherein: The support frame (14) is provided with an elongated hole (15), and a screw (16) for connecting the frame is provided in the elongated hole (15).

7. The elevator door panel flatness detection apparatus according to claim 1, characterized by: A rubber ring (17) is provided on the outer circumferential surface of the roller (6).

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