Detection device for lap joint of cutting device

By introducing a laser displacement sensor and a position detection switch into the ultrasonic cutting system, and combining them with PLC system analysis, automatic detection and control of material overlap joints were achieved, solving the problem of low detection accuracy in existing technologies and improving safety and equipment protection.

CN224158485UActive Publication Date: 2026-04-24GUIZHOU TIRE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU TIRE
Filing Date
2025-05-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing ultrasonic cutting systems for inner lining and sidewall lack accurate detection of material overlap joints, leading to safety hazards and equipment damage. Furthermore, the existing detection devices are not very accurate.

Method used

By employing a laser displacement sensor combined with a position detection proximity switch and analyzing and processing data through a PLC system, the system achieves automatic detection and control of material overlap joints, ensuring timely and accurate detection.

Benefits of technology

It enables precise detection of material overlaps, protects the ultrasonic cutting system, reduces equipment maintenance costs, and avoids safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224158485U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of traction brackets, in particular to a lap joint detection device for a cutting device, which comprises a cutting bottom plate, a compression roller, a material compression roller cylinder, a laser displacement sensor, an ultrasonic cutting device, a guide rail sliding block, a position detection proximity switch A, a position detection proximity switch B and a position detection proximity switch C, the compression roller is controlled by a material compression roller cylinder; the laser displacement sensor is used for detecting the distance from the cutting bottom plate to the sensor and the distance from the material surface to the sensor; the ultrasonic cutting device is installed on the guide rail sliding block. According to the design scheme, the follow-up detection device is additionally arranged on the right side of the traveling direction of the sidewall and lining layer ultrasonic cutter, so that lap joints generated during material changing of the sidewall and the lining layer are automatically detected and controlled in real time, an ultrasonic cutting system is protected, and the maintenance cost of equipment is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of traction support technology, and in particular to a cutting device joint detection device. Background Technology

[0002] The existing ultrasonic cutting systems for inner lining and sidewall lack an automatic detection and control device for the overlap of materials to be cut. The existing main machine feeding rack ultrasonic cutting system has a set of photoelectric switches and reflectors installed at the bottom of the rear two sides of the frame for detecting the accumulation of materials in the sidewall / inner lining.

[0003] Existing technologies often have the following drawbacks: when operators change materials on the tire sidewall or inner liner, overlapping material joints can damage the ultrasonic cutting system if they are conveyed into the ultrasonic cutter's working position. Additionally, if the ultrasonic cutter cuts at the material joint, there is a safety hazard of causing the material to burn or even start a fire. Furthermore, while the photoelectric switch detection device behind the existing feeder cutting system can effectively detect the material stacking, its low accuracy prevents precise detection of overlapping material joints.

[0004] Therefore, this utility model provides a device for detecting the overlap of a cutting device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of low safety and accuracy in existing technologies by proposing a cutting device overlap detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cutting device overlap detection device, comprising a cutting base plate, a pressure roller, a material pressure roller cylinder, a laser displacement sensor, an ultrasonic cutting device, a guide rail slider, a position detection proximity switch A, a position detection proximity switch B, and a position detection proximity switch C; the pressure roller is controlled by the material pressure roller cylinder; the laser displacement sensor is used to detect the distance from the cutting base plate to the sensor and the distance from the material surface to the sensor; the ultrasonic cutting device is mounted on the guide rail slider; the position detection proximity switches A, B, and C are respectively located at the left tire side detection position, the inner liner detection position, and the right tire side detection position.

[0007] The aforementioned components achieve the following effects: by collecting distance data in real time through a laser displacement sensor, determining the detection position by combining it with a position detection proximity switch, and then having the PLC system analyze and process the data, the automatic detection and control of material overlap joints is realized, thereby protecting the ultrasonic cutting system and reducing equipment maintenance costs.

[0008] Preferably, the laser displacement sensor is electrically connected to the PLC system to transmit the collected distance data to the PLC system for analysis and processing.

[0009] The effect achieved by the above components is to ensure that the detection data can be transmitted to the control system in a timely and accurate manner, providing data support for subsequent judgment on the existence of material joints, and ensuring the timeliness and accuracy of detection and control.

[0010] Preferably, the material pressure roller cylinder is connected to an external air source, which can stably provide pressure to make the pressure roller contact the cutting base plate.

[0011] The effects achieved by the above components are: to ensure stable pressure between the pressure roller and the cutting base plate, to eliminate the gap between the material and the cutting base plate, to improve the accuracy of the laser displacement sensor in measuring the distance to the material surface, and thus to improve the accuracy of detecting material overlap joints.

[0012] Preferably, the ultrasonic cutting device is connected to the motor via a transmission mechanism.

[0013] The aforementioned components achieve the following effects: enabling precise movement and stable cutting of the ultrasonic cutting device, ensuring timely stopping of cutting when material overlap is detected, protecting the ultrasonic cutting device and materials, and avoiding damage and safety hazards.

[0014] Preferably, the position detection proximity switch A, position detection proximity switch B and position detection proximity switch C are all electrically connected to the PLC system and are used to send trigger signals to the PLC system.

[0015] The effect achieved by the above components is to enable the PLC system to accurately acquire detection position information, and to control the laser displacement sensor to collect distance data of the material surface at the corresponding position in a timely manner, so as to provide accurate positional basis for judging the material overlap joint.

[0016] In summary:

[0017] In this invention, by adding mechanical components, laser displacement sensors, and related position detection switches to the automatic material cutting system, the system automatically and in real time collects the distance between the cutter base plate and the sensor, as well as the distance between the required material surface and the sensor. The PLC system judges and analyzes the difference between the two collected signals, and outputs corresponding alarm signals and control measures to realize the automatic detection and control of material overlaps. This design scheme adds a follow-up detection device to the right side of the ultrasonic cutter's travel direction on the tire sidewall and inner liner to realize the automatic detection and real-time control of overlaps generated when changing materials on the tire sidewall and inner liner, thereby protecting the ultrasonic cutting system and reducing equipment maintenance costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a control flowchart for the ultrasonic cutting device in this utility model.

[0021] Legend: 1. Cutting base plate; 2. Pressure roller; 3. Material pressure roller cylinder; 4. Laser displacement sensor; 5. Ultrasonic cutting device; 6. Guide rail slider; 7. Position detection proximity switch A; 8. Position detection proximity switch B; 9. Position detection proximity switch C. Detailed Implementation

[0022] Reference Figure 1 As shown, this utility model provides a technical solution: a cutting device overlap detection device, including a cutting base plate 1.

[0023] The following is a detailed explanation of its overall setup and function.

[0024] This implementation scheme also includes a pressure roller 2, a material pressure roller cylinder 3, a laser displacement sensor 4, an ultrasonic cutting device 5, a guide rail slider 6, and position detection proximity switches A7, B8, and C9. The pressure roller 2 is controlled by the material pressure roller cylinder 3. The laser displacement sensor 4 is used to detect the distance from the cutting base plate 1 to the sensor and the distance from the material surface to the sensor. The ultrasonic cutting device 5 is mounted on the guide rail slider 6. Position detection proximity switches A7, B8, and C9 are respectively located at the left tire side detection position, the inner liner detection position, and the right tire side detection position. The laser displacement sensor 4 collects distance data in real time, and the position detection proximity switches determine the detection position. The PLC system then analyzes and processes the data to achieve automatic detection and control of material overlap joints, thereby protecting the ultrasonic cutting system and reducing equipment maintenance costs.

[0025] Specifically, the laser displacement sensor 4 is electrically connected to the PLC system to transmit the collected distance data to the PLC system for analysis and processing. This ensures that the detection data can be transmitted to the control system in a timely and accurate manner, providing data support for subsequent judgment of whether material overlap exists, and ensuring the timeliness and accuracy of detection and control. The material pressure roller cylinder 3 is connected to an external air source, which can stably provide pressure to make the pressure roller 2 contact the cutting base plate 1. This ensures stable pressure between the pressure roller 2 and the cutting base plate 1, eliminates the gap between the material and the cutting base plate 1, improves the accuracy of the laser displacement sensor 4 in measuring the distance to the material surface, and thus improves the accuracy of detecting material overlap. The ultrasonic cutting device 5 is connected to the motor through a transmission mechanism. This enables precise movement and stable cutting of the ultrasonic cutting device 5, ensuring that cutting can be stopped in time when material overlap is detected, protecting the ultrasonic cutting device 5 and the material, and avoiding damage and safety hazards. Position detection proximity switches A7, B8, and C9 are all electrically connected to the PLC system to send trigger signals to the PLC system. This enables the PLC system to accurately acquire detection position information and promptly control the laser displacement sensor 4 to collect distance data from the material surface at the corresponding position, providing an accurate positional basis for judging material overlap joints.

[0026] Working principle: When there is no material, the laser displacement sensor 4 detects the distance S0 from the cutting base plate 1 to the sensor. When the material (left / right tire sidewall and inner liner composite) is cut to a fixed length by the conveyor belt and the length-fixing system, the conveyor belt stops moving. Then, the ultrasonic cutting device 5 and its follow-up joint detection device start cutting the material under the drive of the motor. The cylinder extends to make the pressure roller 2 contact the cutting base plate 1 under a certain pressure (the pressure roller 2 contacts the material under the pressure of the cylinder, eliminating the gap between the material and the cutting base plate 1, ensuring measurement accuracy). When the trigger position detection proximity switch A7 is triggered (left tire sidewall detection position), the laser displacement sensor 4 detects the distance S1 from the surface of the left tire sidewall to the sensor. The system PLC compares the difference between S0 and S1 with a preset threshold. When it exceeds the preset value (detecting the overlap of the left tire sidewall material), the system sends a control signal. At this time, the ultrasonic cutting... When the ultrasonic cutting system stops operating, the audible and visual alarm is activated. When the proximity switch B8 is triggered (inner liner detection position), the laser displacement sensor 4 detects the distance S2 from the inner liner surface to the sensor. The system PLC compares the difference between S0 and S2 with a preset threshold. When the difference exceeds the preset value (inner liner material overlap is detected), the system sends a control signal, and the ultrasonic cutting system stops operating. At the same time, the audible and visual alarm is activated. When the proximity switch C9 is triggered (right tire side detection position), the laser displacement sensor 4 detects the distance S3 from the right tire side surface to the sensor. The system PLC compares the difference between S0 and S3 with a preset threshold. When the difference exceeds the preset value (right tire side material overlap is detected), the system sends a control signal, and the ultrasonic cutting system stops operating. At the same time, the audible and visual alarm is activated.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A cutting device overlap detection device, comprising a cutting base plate (1), characterized in that: It also includes a pressure roller (2), a material pressure roller cylinder (3), a laser displacement sensor (4), an ultrasonic cutting device (5), a guide rail slider (6), a position detection proximity switch A (7), a position detection proximity switch B (8), and a position detection proximity switch C (9); the pressure roller (2) is controlled by the material pressure roller cylinder (3); the laser displacement sensor (4) is used to detect the distance from the cutting base plate (1) to the sensor and the distance from the material surface to the sensor; the ultrasonic cutting device (5) is installed on the guide rail slider (6); the position detection proximity switches A (7), B (8), and C (9) are respectively set at the left tire side detection position, the inner liner detection position, and the right tire side detection position.

2. The overlapping joint detection device for a cutting device according to claim 1, characterized in that: The laser displacement sensor (4) is electrically connected to the PLC system and is used to transmit the collected distance data to the PLC system for analysis and processing.

3. The overlapping joint detection device for a cutting device according to claim 1, characterized in that: The material pressure roller cylinder (3) is connected to an external air source and can stably provide pressure to make the pressure roller (2) contact the cutting base plate (1).

4. The overlapping joint detection device for a cutting device according to claim 1, characterized in that: The ultrasonic cutting device (5) is connected to the motor through a transmission mechanism.

5. The overlapping joint detection device for a cutting device according to claim 1, characterized in that: The position detection proximity switches A (7), B (8), and C (9) are all electrically connected to the PLC system and are used to send trigger signals to the PLC system.