Flame detection system of laser engraving machine

Abstract

The utility model discloses a flame detection system of a laser engraving machine, and belongs to the field of laser engraving machines. Comprising a control panel, an alarm module, a communication module, a flame detection module and a fire extinguishing module, the flame detection module comprises an infrared receiver and a camera. The device has the beneficial effects that the device adopts laser engraving and can emit infrared laser, so that the flame detection accuracy of an infrared receiver can be influenced; the device is provided with the camera, 9 frames of shooting can be completed within 0.3 second, and the pictures shot by the first three frames are used for comparison; the pictures shot by the middle three frames are compared with the pictures shot by the first three frames, and the pictures shot by the latter three frames are also compared with the pictures shot by the first three frames, so that the shooting results of the middle three frames are confirmed; and when the light spot displayed by the shot picture is very large, the open fire can be judged in combination with the infrared rays received by the infrared receiver, so that the open fire can be judged more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of flame detection systems of laser engraving machine, belong to laser engraving machine field. BACKGROUND

[0002] The laser engraving machine applied by the device is the integrated laser engraving machine of the company, and the structure of the laser engraving machine can refer to the patent CN202320505915.2, a double exhaust device for laser engraving machine;

[0003] When the laser engraving machine is used, most of the engraved articles are wooden structures, so the high temperature of the laser may cause the wooden structure to produce an open flame. At the same time, when the device is used, in order to prevent smoke from spreading, the cover needs to be covered and the double exhaust device is used to remove the generated smoke. Therefore, the staff may not be able to immediately discover the generation of the open flame, which may affect the quality of the engraved article. Therefore, a flame detection system needs to be set up to avoid the above situation. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of flame detection systems of laser engraving machine, which can effectively solve the above problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The control panel, alarm module, communication module, flame detection module and fire extinguishing module are included. The control panel is electrically connected with the alarm module, communication module, fire extinguishing module and flame detection module. The flame detection module includes an infrared receiver and a camera. The camera is arranged on the laser head, and the infrared receiver is fixed on the laser engraving machine.

[0007] Further, the alarm module is a buzzer and an LED lamp, and the control panel controls the buzzer and the LED lamp through a relay.

[0008] Further, the communication module uses Bluetooth, WiFi and wired communication.

[0009] Further, the fire extinguishing module includes a gas storage tank, the gas storage tank is connected with a gas guide pipe, and an electromagnetic valve is arranged at the connection between the gas guide pipe and the gas storage tank. The outlet of the gas guide pipe is arranged on the laser head.

[0010] Further, the gas storage tank is also connected with a high-pressure gas pump.

[0011] Further, the control panel is a single-chip microcomputer with model RK3568.

[0012] The beneficial effects are:

[0013] The device is laser engraving, and the laser itself will emit infrared rays, which will affect the accuracy of the infrared receiver 51 in detecting the flame;

[0014] Therefore, the device is equipped with a camera, which completes 9 frames of shooting in 0.3 seconds, and the first three frames of pictures are used for comparison, and the comparison object is the middle three frames and the last three frames of pictures; the middle three frames of pictures are compared with the first three frames of pictures, and then the last three frames of pictures are also compared with the first three frames of pictures, to confirm the result of the middle three frames of pictures;

[0015] When the light spot displayed by the photographed picture is large, combined with the infrared rays received by the infrared receiver, it can be determined that an open flame occurs, and such a setting can ensure that the judgment of the open flame is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to facilitate the description, the utility model is described in detail by the following specific implementation and drawings.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Mark explanation:

[0019] 1, control panel; 2, alarm module; 21, buzzer; 22, LED lamp; 4, communication module; 5, flame detection module; 51, infrared receiver; 52, camera; 6, fire extinguishing module. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0021] Reference Figure 1 It is an embodiment of a laser engraving machine flame detection system of the utility model,

[0022] It comprises control panel 1, alarm module 2, communication module 4 and flame detection module 5, fire extinguishing module 6; control panel 1 is electrically connected with alarm module 2, communication module 4, fire extinguishing module 6 and flame detection module 5 respectively; flame detection module 5 comprises infrared receiver 51 and camera 52; camera 52 is arranged on the laser head, and infrared receiver 51 is fixed on the laser engraving machine.

[0023] The device is a flame detection device of an integrated laser engraving machine. When the laser engraving machine is in use, most of the engraved objects are wooden structures. Therefore, the high temperature of the laser may cause the wooden structure to produce an open flame, and the open flame may emit infrared rays. The infrared rays emitted by the open flame are received by the infrared receiver 51 of the flame detection module 5 in the device, so that the detection of the flame can be completed.

[0024] However, the device is a laser engraving, which may emit infrared rays. Even if the energy generated by the laser is mainly consumed on the engraved material, a small amount of infrared rays may still be emitted, which may affect the accuracy of the infrared receiver 51 in detecting the flame.

[0025] Therefore, the device is equipped with a camera 52. The camera 52 of the device works at a speed of 30 frames per second and completes 9 frames of shooting in 0.3 seconds. The first three frames of pictures are used for comparison, and the comparison objects are the middle three frames and the last three frames of pictures. The middle three frames of pictures are compared with the first three frames of pictures, and then the last three frames of pictures are also compared with the first three frames of pictures to confirm the result of the middle three frames of pictures.

[0026] When the light spot displayed in the picture is large, combined with the infrared rays received by the infrared receiver 51, it can be determined that an open flame occurs. In this way, the determination of the open flame can be more accurate.

[0027] The alarm module 2 specifically includes a buzzer 21 and an LED lamp 22. The control panel 1 controls the buzzer 21 and the LED lamp 22 through a relay 23.

[0028] When it is confirmed that there is an open flame, the control panel 1 sends a signal to the alarm module 2. The alarm module 2 controls the buzzer 21 to emit an alarm sound through the relay 23, and controls the LED lamp 22 to emit a red light.

[0029] The communication module 4 adopts Bluetooth, WiFi, and wired communication.

[0030] When it is confirmed that there is an open flame, the control panel 1 sends a signal to the communication module 4. The communication module 4 integrates Bluetooth, WiFi, and wired communication, and can remind the staff in multiple ways.

[0031] The fire extinguishing module 6 includes a gas storage tank. The gas storage tank is connected with a gas guide pipe. An electromagnetic valve is arranged at the connection position of the gas guide pipe and the gas storage tank. The outlet of the gas guide pipe is arranged on the laser head.

[0032] When it is confirmed that there is an open flame, the fire extinguishing module 6 is also automatically started. The electromagnetic valve is automatically opened, and the high-pressure gas in the gas storage tank is blown to the open flame through the gas guide pipe to extinguish the open flame. The gas storage tank of the device stores sufficient high-pressure gas and can be used repeatedly for four to five times.

[0033] A high-pressure gas pump is also connected to the gas storage tank.

[0034] The control panel 1 is specifically a single-chip microcomputer of model RK3568.

[0035] The above merely describes specific embodiments of the present application, but the technical features of the present application are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present application, which are all covered by the patent range of the present application.

Claims

1. A laser engraver flame detection system characterized by: The application relates to a laser engraving machine fire extinguishing device which comprises a control panel (1), an alarm module (2), a communication module (4), a flame detection module (5) and a fire extinguishing module (6); the control panel (1) is electrically connected with the alarm module (2), the communication module (4), the fire extinguishing module (6) and the flame detection module (5) respectively; The flame detection module (5) comprises an infrared receiver (51) and a camera (52); the camera (52) is arranged on a laser head, and the infrared receiver (51) is fixed on a laser engraving machine; the camera (52) works at a speed of 30 frames per second all the time; The fire extinguishing module (6) comprises a gas storage tank, a gas guide pipe is connected with the gas storage tank, an electromagnetic valve is arranged at the connecting position of the gas guide pipe and the gas storage tank, and the outlet of the gas guide pipe is arranged on the laser head; A high-pressure gas pump is further connected with the gas storage tank.

2. The laser-engraving machine flame detection system of claim 1, wherein: The alarm module (2) is specifically a buzzer (21) and an LED lamp (22), and the control panel (1) controls the buzzer (21) and the LED lamp (22) through a relay (23).

3. The laser-engraving machine flame detection system of claim 2, wherein: The communication module (4) adopts Bluetooth, WiFi and wired communication.

4. The laser-engraving machine flame detection system of claim 1, wherein: The control panel (1) is specifically an RK3568 single-chip microcomputer.

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