A steel formwork hole position precision calibrator

By keeping the steel template parallel to the laser detector using a conveyor belt and calibration rod, and by using a shape roller and laser detector in conjunction, the position of the steel template is automatically adjusted, which solves the problems of cumbersome and inaccurate traditional steel template calibrators and achieves efficient and accurate hole position detection.

CN224593906UActive Publication Date: 2026-08-04HUBEI AWESOME STEEL MOULD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI AWESOME STEEL MOULD CO LTD
Filing Date
2025-09-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional steel formwork calibrators require multiple measurements of steel formwork of different shapes, and the movement trajectory of the laser detector needs to be manually adjusted when changing shapes, making the calibration process cumbersome and inaccurate.

Method used

A steel template hole position accuracy calibrator was designed. The steel template is kept parallel to the laser detector by a conveyor belt and a calibration rod. The position of the steel template is automatically adjusted by the shape roller and the laser detector to achieve accurate detection.

Benefits of technology

It has achieved automation and precision in steel formwork hole position detection, reduced manual adjustment steps, and improved detection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224593906U_ABST
    Figure CN224593906U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of steel formwork technology, specifically relating to a steel formwork hole position accuracy calibrator, comprising: a conveyor belt, a steel formwork placed on top of the conveyor belt, both sides of the steel formwork being coated with pigment markings; calibration rods are arranged on both sides of the conveyor belt, the tops of the two calibration rods being fixedly connected by a connecting plate; protective shells are vertically slidably arranged on the outer sides of the two calibration rods, a shape roller is arranged between the two protective shells, and a laser detector is arranged on the protective shell near the lower part of the shape roller; a rotatable alignment rod is rotatably arranged at the end of the protective shell near the steel formwork. This utility model enables the steel formwork to be moved horizontally parallel to the conveyor belt, so that the two sides of the steel formwork are kept parallel to the laser detector, thereby enabling more accurate detection and calibration. When the shape roller moves along the top of the steel formwork, the laser detector can move up and down to detect the hole position information on the side of the steel formwork.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of steel formwork technology, and specifically relates to a steel formwork hole position accuracy calibrator. Background Technology

[0002] A steel formwork hole position accuracy calibrator is a tool used to check and adjust the accuracy of holes in steel formwork, ensuring that the holes meet design requirements during construction. Its main function is to detect whether the size and position of the holes on the formwork conform to the design drawings, ensuring that the formwork connections and support structures can be precisely aligned during concrete pouring, thereby improving construction accuracy and safety.

[0003] Problems with existing technology:

[0004] There are many types of steel formwork. Steel formwork is connected to each other through holes on the side. Before drilling, workers need to apply marking pigment to the location where the hole needs to be drilled. The position of the pigment is confirmed by a calibrator to meet the requirements of the drawing before drilling. However, during calibration, traditional calibrators need to measure triangular and arc-shaped steel formwork multiple times. When changing steel formwork of different shapes, the movement trajectory of the laser detector needs to be adjusted. It is also quite troublesome to manually straighten the steel formwork before calibration. Utility Model Content

[0005] The purpose of this invention is to provide a steel template hole position accuracy calibrator, which can move the steel template to a position parallel to the conveyor belt, so that the two sides of the steel template are parallel to the laser detector, thereby enabling more accurate detection and calibration. When the shape roller moves along the top of the steel template, the laser detector can move up and down to detect the hole position information on the side of the steel template.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A steel template hole position accuracy calibrator includes: a conveyor belt, on the top of which a steel template is placed, and both sides of the steel template are coated with pigment marks;

[0008] Calibration rods are provided on both sides of the conveyor belt, and the tops of the two calibration rods are fixedly connected by a connecting plate;

[0009] A protective shell is vertically slidably provided on the outer side of each of the two calibration rods, a shape roller is provided between the two protective shells, and a laser detector is provided on the protective shell near the lower part of the shape roller;

[0010] A rotatable centering rod is rotatably installed at the end of the protective shell near the steel template.

[0011] A drive motor is fixedly installed inside the protective shell, and the output end of the drive motor is fixedly connected to the balance rod.

[0012] A support ring is slidably mounted on the calibration rod near the lower part of the protective shell, and the support ring is connected to the calibration rod by screws.

[0013] The shaping roller is positioned on the side of the protective shell away from the steel template, and the laser detector is positioned directly below the shaping roller.

[0014] The bottom end of the calibration rod is fixedly connected to a support plate, which is in contact with the ground.

[0015] The calibration rod is a cylinder with a diameter of 5cm to 8cm and is made of nickel-chromium alloy.

[0016] The coefficient of friction between the conveyor belt and the steel template is 0.1-0.4.

[0017] A contact plate is slidably installed inside the straightening rod, and a spring is fixedly connected between the contact plate and the inner wall of the straightening rod.

[0018] The aligning rod has horizontal grooves on both sides near the contact plate, and a sliding limit pin is fixedly installed on the contact plate near the groove. Both the aligning rod and the contact plate have power connectors fixedly installed inside.

[0019] An electromagnet is fixedly installed on the protective shell near the support ring, and the electromagnet is sleeved on the outside of the calibration rod.

[0020] The technical effects achieved by this utility model are as follows:

[0021] In this invention, when the steel template is placed at an angle, one side will first contact the corresponding protective shell and be blocked from moving further. The other side of the steel template will continue to move under the transmission action of the conveyor belt until both sides of the steel template are in contact with the protective shell, that is, the steel template and the conveyor belt are placed parallel to each other. This allows both sides of the steel template to be parallel to the laser detector, thereby making the detection data more accurate.

[0022] In this invention, the steel template continues to move to the shape roller. When the steel template comes into contact with the shape roller, since the shape roller is arc-shaped and the top of the steel template is inclined, the moving steel template pushes the shape roller and the protective shell upward. The laser detector below the shape roller will move along the top shape of the steel template and simultaneously detect the side of the steel template to obtain hole position data. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the appearance structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the calibration rod in this utility model;

[0025] Figure 3 This is a front view of the protective shell structure in this utility model;

[0026] Figure 4 This is a rear view of the protective shell structure in this utility model;

[0027] Figure 5 This is a cross-sectional view of the alignment rod in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Conveyor belt; 2. Steel template; 3. Calibration rod; 301. Protective shell; 302. Alignment rod; 303. Shape roller; 304. Laser detector; 305. Support ring; 306. Contact plate; 307. Power supply head; 308. Sliding limit pin. Detailed Implementation

[0030] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0031] like Figures 1-2 As shown, a steel template hole position accuracy calibrator includes: a conveyor belt 1, a steel template 2 placed on top of the conveyor belt 1, and pigment markings applied to both sides of the steel template 2; calibration rods 3 are provided on both sides of the conveyor belt 1, and the tops of the two calibration rods 3 are fixedly connected by a connecting plate; a protective shell 301 is vertically slidably provided on the outer side of each of the two calibration rods 3.

[0032] The steel template 2 is placed on the conveyor belt 1 for conveying. The steel template 2 cannot be placed arbitrarily. The steel template 2 needs to be placed horizontally on the conveyor belt 1 with the paint markings on both sides facing the protective shell 301.

[0033] See attached document Figures 2-5 A slewing rod 302 is rotatably mounted on one end of the protective shell 301 near the steel template 2; a drive motor is fixedly installed inside the protective shell 301, and the output end of the drive motor is fixedly connected to the slewing rod 302; a support ring 305 is slidably mounted on the calibration rod 3 near the lower position of the protective shell 301, and the support ring 305 is connected to the calibration rod 3 by screws; a shape roller 303 is provided between the two protective shells 301, and the shape roller 303 is located on the side of the protective shell 301 away from the steel template 2, and the laser detector 304 is located directly below the shape roller 303; a support plate is fixedly connected to the bottom end of the calibration rod 3, and the support plate is in contact with the ground.

[0034] Under the support of the conveyor belt 1, the steel template 2 gradually approaches the calibration rod 3. First, the steel template 2 reaches the position of the protective shell 301. Although the steel template 2 needs to be parallel to the conveyor belt 1 when it is placed, it is inevitable that it will be tilted, which will affect the calibration effect. When the steel template 2 is tilted, one side will first contact the corresponding protective shell 301 and be blocked from moving further. The other side of the steel template 2 will continue to move under the transmission action of the conveyor belt 1 until both sides of the steel template 2 are in contact with the protective shell 301, that is, the steel template 2 is placed parallel to the conveyor belt 1. At this time, the protective shell 301 rotates, allowing the steel template 2 to pass through.

[0035] The steel template 2 continues to move to the shaping roller 303. When both sides of the steel template 2 are in contact with the protective shell 301, both protective shells 301 send electrical signals to control the protective shell 301 and the support ring 305 to lose their limit through the PLC. When the steel template 2 is in contact with the shaping roller 303, since the shaping roller 303 is arc-shaped and the top of the steel template 2 is inclined, the moving steel template 2 pushes the shaping roller 303 and the protective shell 301 upward. As the steel template 2 continues to move, the laser detector 304 below the shaping roller 303 detects the side of the steel template 2 to obtain the hole position data.

[0036] The support plate is used to keep the calibration rod 3 stable, and if necessary, a weight can be applied to it to ensure the stability of the calibration rod 3.

[0037] The coefficient of friction between the contact surface of the conveyor belt 1 and the steel template 2 is 0.1-0.4; a contact plate 306 is slidably installed inside the aligning rod 302, and a spring is fixedly connected between the contact plate 306 and the inner wall of the aligning rod 302; a sliding groove is laterally opened on both sides of the aligning rod 302 near the contact plate 306, and a sliding limit pin 308 is fixedly installed on the contact plate 306 near the sliding groove; an electric inlet 307 is fixedly installed inside both the aligning rod 302 and the contact plate 306; an electromagnet is fixedly installed on the protective shell 301 near the support ring 305, and the electromagnet is sleeved on the outside of the calibration rod 3.

[0038] According to the above structure, the coefficient of friction of the contact surface between the conveyor belt 1 and the steel template 2 can provide the steel template 2 with the force to push the shape roller 303 to move, and can also allow the steel template 2 to slide on the conveyor belt 1 when blocked by the shape roller 303, thereby adjusting it to be parallel to the conveyor belt 1 laterally.

[0039] When one side of the inclined steel template 2 is blocked by the shaping roller 303, the steel template 2 contacts the contact plate 306 and pushes the contact plate 306 to compress the spring, so that the straightening rod 302 contacts the power supply head 307 of the contact plate 306 and sends an electrical signal to the PLC. The PLC energizes the electromagnet so that it is tightly magnetically attracted to the support ring 305, limiting the protective shell 301 on that side. When the other side of the steel template 2 is blocked by the shaping roller 303, the power supply heads 307 on both sides send electrical signals to the PLC. The PLC controls the motors on both sides to quickly rotate the straightening rod 302 until it is parallel to the calibration rod 3, so that the steel template 2 can pass through. At the same time, the electromagnet is de-energized, so that the protective shell 301 loses its limit.

[0040] In order to ensure the limiting effect, the electromagnet is kept energized until both sides of the balancing rod 302 are in contact and then the power is cut off.

[0041] See attached document Figures 2-4 A laser detector 304 is provided on the protective shell 301 near the shape roller 303; the calibration rod 3 is a cylinder with a diameter of 5cm to 8cm and is made of nickel-chromium alloy.

[0042] According to the above structure, when the steel template 2 passes under the shaping roller 303, the shaping roller 303 will move along the shape of the top of the steel template 2. At this time, the laser detector 304 can detect the side surfaces on both sides of the steel template 2 to obtain the hole position data.

[0043] The calibration rod 3 is made of nickel-chromium alloy, which is characterized by its high resistance. The top of the calibration rod 3 is electrically connected to a cable, and the protective shell 301 is also externally connected to a cable. When the protective shell 301 and the calibration rod 3 are always electrically connected, when the protective shell 301 slides upward, the resistance in the circuit increases due to the reduced resistance of the calibration rod 3, which increases the current between the two. The height of the protective shell 301 can be obtained by measuring the current. Then, the moving distance of the steel template 2 can be calculated by the conveying speed of the conveyor belt 1 and the moving speed of the steel template 2 after the shape roller 303 rotates. By measuring the height and distance, it is possible to determine whether the marking pigment applied at the detection position of the laser detector 304 is qualified.

[0044] The calibration rod 3 can also be made of metals such as tungsten or iron, but a nickel-chromium alloy is more suitable. If the diameter of the calibration rod 3 is too large, it will reduce the resistance and cause unnecessary power waste; if the diameter is too small, it will result in insufficient strength.

[0045] The working principle of this utility model is as follows: the steel template 2 first reaches the position of the protective shell 301. When the steel template 2 is placed at an angle, one side of it will first contact the corresponding protective shell 301 and be blocked from moving further. The other side of the steel template 2 will continue to move under the transmission action of the conveyor belt 1 until both sides of the steel template 2 are in contact with the protective shell 301, that is, the steel template 2 is placed parallel to the conveyor belt 1. At this time, the protective shell 301 rotates, allowing the steel template 2 to pass through.

[0046] The steel template 2 continues to move to the shaping roller 303. When both sides of the steel template 2 are in contact with the protective shell 301, both protective shells 301 send electrical signals to control the protective shell 301 and the support ring 305 to lose their limit through the PLC. When the steel template 2 is in contact with the shaping roller 303, since the shaping roller 303 is arc-shaped and the top of the steel template 2 is inclined, the moving steel template 2 pushes the shaping roller 303 and the protective shell 301 upward. As the steel template 2 continues to move, the laser detector 304 below the shaping roller 303 detects the side of the steel template 2 to obtain the hole position data.

[0047] The laser detector 304 detects the position, size, shape, and completeness of the mark by means of laser scanning or laser reflection, and can determine whether the mark deviates from the predetermined position or is missing.

[0048] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A steel template hole position accuracy calibrator, comprising a conveyor belt (1), a steel template (2) placed on top of the conveyor belt (1), and pigment markings applied to both sides of the steel template (2), characterized in that: Calibration rods (3) are provided on both sides of the conveyor belt (1), and the tops of the two calibration rods (3) are fixedly connected by a connecting plate; A protective shell (301) is vertically slidably provided on the outer side of each of the two calibration rods (3), and a shape roller (303) is provided between the two protective shells (301). A laser detector (304) is provided on the protective shell (301) near the lower part of the shape roller (303). A sway bar (302) is rotatably provided at one end of the protective shell (301) near the steel template (2).

2. The calibrator according to claim 1, characterized in that: A drive motor is fixedly installed inside the protective shell (301), and the output end of the drive motor is fixedly connected to the balancing rod (302).

3. The calibrator according to claim 1, characterized in that: A support ring (305) is slidably installed on the calibration rod (3) near the lower part of the protective shell (301), and the support ring (305) is connected to the calibration rod (3) by screws.

4. The calibrator according to claim 1, characterized in that: The shape roller (303) is located on the side of the protective shell (301) away from the steel template (2), and the laser detector (304) is located directly below the shape roller (303).

5. The calibrator according to claim 1, characterized in that: The bottom end of the calibration rod (3) is fixedly connected to a support plate, which is in contact with the ground.

6. The calibrator according to claim 1, characterized in that: The calibration rod (3) is a cylinder with a diameter of 5cm to 8cm and is made of nickel-chromium alloy.

7. The calibrator according to claim 1, characterized in that: The coefficient of friction between the contact surface of the conveyor belt (1) and the steel template (2) is 0.1-0.

4.

8. The calibrator according to claim 1, characterized in that: A contact plate (306) is slidably installed inside the straightening rod (302), and a spring is fixedly connected between the contact plate (306) and the inner wall of the straightening rod (302).

9. The calibrator according to claim 1, characterized in that: The aligning rod (302) has a horizontal groove on both sides near the contact plate (306). The contact plate (306) is fixedly installed with a sliding limit pin (308) near the groove. Both the aligning rod (302) and the contact plate (306) have an electric inlet (307) fixedly installed inside.

10. The calibrator according to claim 1, characterized in that: An electromagnet is fixedly installed on the protective shell (301) near the support ring (305), and the electromagnet is sleeved on the outside of the calibration rod (3).