An inductive dust suction adjustment device for a CNC bevel cutting machine

Abstract

The present invention provides a light-sensing dust collection and adjustment device for a CNC bevel cutting machine, comprising a through-beam photoelectric sensor, a first suction component, a second suction component, and an electronic control circuit. The suction components suction in the X-axis direction, and the first and second suction components always maintain opposite working states to ensure that there is no airflow collision. The transmitted light between the transmitter and receiver of the through-beam photoelectric sensor always travels along the Y-axis direction. When the torsion direction of the cutting nozzle steering structure is 90° to 270° with the suction direction, the transmitted light is blocked by the cutting nozzle steering structure, and the electronic control circuit controls the switching states of the first and second suction components to reverse, and the corresponding suction direction is reversed. The present invention eliminates airflow collision, prevents smoke and dust from escaping, and greatly improves dust removal quality.

Description

Technical Field

[0001] The invention relates to the dust collection operation of a numerically controlled beveling cutting machine, in particular to a light-sensing regulating device which automatically follows the turning movement of the cutting nozzle of the cutting machine to adjust the dust collection action. Background Art

[0002] The machinery and equipment manufacturing industries are inseparable from the cutting of sheet metal. To facilitate real-time observation during the cutting process and to avoid wastewater generation, current cutting machines primarily utilize dry, non-underwater cutting methods. In the shipbuilding industry, in particular, many parts require beveling before welding, leading to the introduction of a large number of CNC beveling cutting machines. Traditional dust removal methods involve fixed, single-direction blowing and opposing suction. Unlike non-bevel cutting machines, where the cutting nozzle directs airflow vertically downward, bevel cutting machines emit a high-pressure, diagonal downward airflow from the cutting nozzle. As the cutting nozzle tilts toward the operator's console during the cutting process, it collides with the high-pressure dust-blowing airflow directed toward the console. Some dust enters the suction port along the cutting frame beneath the sheet, while the majority of the high-temperature dust floats upward, creating a harsh working environment and seriously impacting the occupational health and safety of operators. Summary of the Invention

[0003] The present invention provides a light-sensing dust suction adjustment device for a CNC bevel cutting machine. By adding a through-beam photoelectric sensor and corresponding electrical components, a dust suction adjustment device that automatically adjusts the suction action is manufactured to ensure that the suction direction remains roughly consistent with the inclination direction of the cutting nozzle, so that the smoke and dust enter the suction port along with the high-pressure airflow and finally enter the dust removal equipment, thereby reducing smoke and dust pollution in the workshop and improving the working environment of the operator.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a light-sensing dust suction adjustment device for a CNC bevel cutting machine, wherein the CNC bevel cutting machine includes a cutting nozzle steering structure and a cutting machine main beam, wherein the cutting nozzle steering structure twists along the cutting program, and the dust suction adjustment device includes a through-beam photoelectric sensor, a first suction component, a second suction component, and an electronic control circuit; the suction direction of the first suction component or the second suction component is along the X-axis direction, and the first suction component and the second suction component always maintain opposite working states to ensure that there is no airflow collision; the transmitter of the through-beam photoelectric sensor is installed and fixed on one side of the cutting machine main beam, and the receiver of the through-beam photoelectric sensor is installed and fixed on the other side of the cutting machine main beam; the emitted light between the transmitter and the receiver is always along the Y-axis direction, and when the twisting direction of the cutting nozzle steering structure is 90°~270° with the suction direction, the emitted light is blocked by the cutting nozzle steering structure, and the electronic control circuit controls the switching state of the first suction component and the second suction component to reverse, and the corresponding suction direction is reversed.

[0006] Preferably, the dust suction adjustment device also includes a first blowing component and a second blowing component, and an air suction passage is formed between the first blowing component and the second suction component or between the second blowing component and the first suction component, and the suction direction of the air suction passage is along the X-axis direction. The electronic control circuit controls the reversal of the switching states of the first suction component, the second suction component, the first blowing component and the second blowing component; the first suction component and the second suction component always maintain opposite working states, and the first blowing component and the second blowing component always maintain opposite working states to ensure that there is no counter-flow of air.

[0007] Preferably, the electronic control circuit includes a relay, a first electronic control switch and a second electronic control switch, the first electronic control switch is used to control the on / off state of the first air suction component; the second electronic control switch is used to control the on / off state of the second air suction component.

[0008] Preferably, the electronic control circuit includes a relay, a first electronic control switch and a second electronic control switch, the first electronic control switch is used to control the switching state of the first suction component and the first blowing component; the second electronic control switch is used to control the switching state of the second suction component and the second blowing component.

[0009] Preferably, the through-beam photoelectric sensor is connected to two relays at the same time, which respectively control the first electric-controlled switch and the second electric-controlled switch, so that the electric-controlled switches are switched on and off according to the signal of the through-beam photoelectric sensor.

[0010] Preferably, when the cutting nozzle steering structure is in a non-working state, the emitted light is 1 mm ± 0.5 mm away from the edge of the cutting nozzle steering structure along the X-axis direction, and the emitted light is not blocked.

[0011] Preferably, the dust suction adjustment device further includes a sensor fixing rod, and the transmitter and receiver are respectively fixed to the main beam of the cutting machine by welding through the sensor fixing rod.

[0012] Preferably, the dust suction adjustment device is used for dust suction adjustment of a CNC bevel cutting machine. The cutting machine also includes an operating table. The second air suction component is close to one side of the operating table. When the cutting machine is in an initial state, the second air suction component is in a closed state and the first air suction component is in an open state to protect the operating table from being affected by smoke and dust.

[0013] Preferably, the cutting nozzle steering structure is a cylindrical soft-body cutting nozzle steering structure.

[0014] Compared with existing technologies, the present invention has a high degree of automation, is more intelligent, and eliminates the phenomenon of airflow collision, which prevents smoke and dust from escaping, greatly improving the quality of dust removal. Using the present invention to remove dust from bevel cutting machine operations improves the smoke collection rate, avoids the collision of cold and hot air flows, reduces smoke pollution and particulate matter emissions, improves the working environment of operators, and reduces the risk of pneumoconiosis. It also reduces the work of manually adjusting the blowing and suction valves, and is more synchronized with the cutting operation. Whether from the perspective of environmental protection or occupational health and safety, this invention has great value for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of a light-sensing dust removal and adjustment device of the present invention.

[0016] Figure 2-1 、 Figure 2-2 for Figure 1 The installation position requirements of the through-beam photoelectric sensor are shown in the top view diagram; among them, Figure 2-1 The cutting nozzle steering structure is in a non-working state.

[0017] Figure 2-2 The cutting nozzle steering structure is in working condition.

[0018] Legend: 1. Through-beam photoelectric sensor; 2. Sensor fixing rod; 3. Relay; 4. First air blowing assembly; 5. First air suction assembly; 6. First electric switch; 7. Second air blowing assembly; 8. Second air suction assembly; 9. Second electric switch; 10. Cutting nozzle steering structure; 11. Cutting machine assembly; 12. Cutting machine main beam; 13. Cutting machine track; 14. Smoke and dust duct; 15. Dust removal equipment; 16. Operating table. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1 、 Figure 2-1 、 Figure 2-2 In an embodiment of the present invention, a light-sensing dust suction adjustment device (hereinafter referred to as the dust suction adjustment device) for a CNC bevel cutting machine includes a cutting nozzle steering structure 10 and a cutting machine main beam 12. The cutting nozzle steering structure 10 rotates according to the cutting process. The dust suction adjustment device includes a through-beam photoelectric sensor 1 (hereinafter referred to as sensor 1), a first suction assembly 5, a second suction assembly 8, and an electronic control circuit. The positive direction of the X-axis is the right side, the negative direction of the X-axis is the left side, the positive direction of the Y-axis is the rear side, and the negative direction of the Y-axis is the front side. Sensor 1 is fixedly connected to the cutting machine main beam 12, preferably by a rigid connection. More preferably, sensor 1 is connected to the cutting machine main beam 12 by welding via a sensor fixing rod 2. Sensor 1 includes a transmitter and a receiver. The transmitter is mounted and fixed on one side of the cutting machine main beam 12, and the receiver is mounted and fixed on the other side of the cutting machine main beam 12. Preferably, the transmitter and receiver of the through-beam photoelectric sensor 1 are mounted and fixed to one end of the sensor fixing rod 2, and the other end of the sensor fixing rod 2 is welded to the front and rear sides of the cutting machine's main beam. Specifically, the relay 3 and the two side air suction and air blowing electronically controlled switches (first electronically controlled switch 6 and second electronically controlled switch 9) are connected to the sensor circuit and, together with the sensor circuit, form the electronic control circuit. The first air suction assembly 5 and the second air suction assembly 8 are respectively connected to the equipment's dust duct 14. The suction direction of the first air suction assembly 5 or the second air suction assembly 8 is along the X-axis. The first and second air suction assemblies 5 and 8 always operate in opposite directions to ensure that there is no airflow collision. Optionally, the dust suction adjustment device also includes a first air blowing assembly 4 and a second air blowing assembly 7, which are respectively connected to the workshop's compressed air pipeline. The on / off status of the first air blowing assembly 4 and the air suction assembly 5 is controlled by the electronically controlled switch 6. The on / off status of the second air blowing assembly 7 and the air suction assembly 8 is controlled by the electronically controlled switch 9. The first and second electronically controlled switches 6 and 9 are controlled by signals from the through-beam photoelectric sensor 1, which are converted by relay 3. The right side of the cutting machine console 16 is prioritized for protection. The second blow assembly 7 is initially set to normally open, the second suction assembly 8 to normally closed, the first suction assembly 5 to normally open, and the first blow assembly 4 to normally closed, to prioritize protecting the right side of the console 16 from smoke and dust.

[0021] The light transmitted between the transmitter and the receiver is always along the Y-axis direction. When the torsion direction of the cutting nozzle steering structure 10 is 90°~270° with the suction direction, the transmitted light is blocked by the cutting nozzle steering structure 12, and the electronic control circuit controls the switching state of the first suction component 5 and the second suction component 8 to reverse, and the suction direction is reversed accordingly. Figure 2-1 、 Figure 2-2 When the cutting nozzle steering structure 10 turns to the left and away from the operating table 16 side as the cutting program progresses (that is, the twisting direction of the cutting nozzle steering structure 10 is -90°~90°, including -90° and 90°, and the light emitted by the through-beam photoelectric sensor 1 is not blocked, and the signal does not change. The cutting machine cutting nozzle airflow is to the left, and the airflow of the first air suction component 5 is also to the left. The airflow is consistent, and the smoke enters the dust removal device through the air suction component 5. When the cutting machine nozzle steering structure 10 turns to the right side of the operating table as the cutting program progresses (i.e., the twisting direction of the cutting nozzle steering structure 10 is 90°~270° to the suction direction, excluding 90° and 270°), the light of the through-beam photoelectric sensor 1 is blocked and a signal is sent. The relay 3 converts the signal and sends an electric control signal to the first electric control switch 6 and the second electric control switch 9, switching the second suction component 8 to on and the second blowing component 7 to off, switching the first blowing component 4 to on and the first suction component 5 to off, so that the cutting nozzle airflow direction and the blowing component airflow direction are simultaneously to the right, and the suction airflow direction is also to the right, to avoid smoke and dust escape caused by airflow collision.

[0022] It is understandable that the dust suction adjustment device may not have a blowing component, and use the negative pressure air generated by the suction component to achieve suction.

[0023] See also Figure 2-1 、 Figure 2-2 The sensor 1 installation position requirements meet the following requirements: the emitted light from the photoelectric sensor 1 is 1 mm ± 0.5 mm from the right edge of the cutting nozzle deflection structure 10, offset to the right, parallel to the Y-axis. In the initial state of the sensor 1 (i.e., when the cutting nozzle deflection structure 10 is inactive), the transmitter and receiver are unobstructed. Preferably, the cutting nozzle deflection structure 10 is a cylindrical soft deflection structure.

[0024] Preferably, the blowing components 4 and 7 and the suction components 5 and 8 on the left and right sides always maintain opposite working states to ensure that the airflows on the left and right sides are not in conflict.

[0025] Preferably, the through-beam photoelectric sensor 1 is connected to two relays 3 at the same time, which respectively control the left and right suction and blowing electric control switches, so that the left and right suction and blowing switches 6 and 9 are switched on and off following the signal of the through-beam photoelectric sensor 1.

[0026] The dust removal principle of the present invention is as follows: the aforementioned suction assembly generates an intake airflow through the compressor of the dust removal device 15, sucking in the cutting machine dust and directing it to the dust removal device 15; or the blowing assembly blows high-pressure compressed air through the blowing port to the bottom of the cutting plate, along the left and right grille channels below the cutting machine frame, blowing the cutting dust to the opposite suction assembly. The suction assembly generates an intake airflow through the compressor of the dust removal device 15, sucking in the dust blown from the opposite blowing port and directing it to the dust removal device 15. As the angle of the CNC bevel cutting machine nozzle rotates radially and axially according to the cutting process, the light emitted by the through-beam light sensor 1 is blocked, generating an electrical signal, which is converted into a current signal by a relay to control the opening and closing of the left and right blowing assemblies, ensuring that the airflow generated by the suction assembly always aligns with the torsion direction of the cutting machine nozzle, avoiding the collision of the two airflows, which would cause high-temperature gas to float upward, causing dust pollution and affecting the working environment.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A light-sensing dust suction adjustment device for a CNC bevel cutting machine, wherein the CNC bevel cutting machine comprises a cutting nozzle steering structure and a cutting machine main beam, wherein the cutting nozzle steering structure is twisted according to the cutting process, characterized in that: The dust suction adjustment device includes a through-type photoelectric sensor, a first suction component, a second suction component and an electronic control circuit; the suction direction of the first suction component or the second suction component is along the X-axis direction, and the first suction component and the second suction component always maintain opposite working states to ensure that there is no counter-flow of air; the transmitter of the through-type photoelectric sensor is installed and fixed on one side of the main beam of the cutting machine, and the receiver of the through-type photoelectric sensor is installed and fixed on the other side of the main beam of the cutting machine; the emitted light between the transmitter and the receiver is always along the Y-axis direction, when the torsion direction of the cutting nozzle steering structure is 90° to 270° with the suction direction, the emitted light is blocked by the cutting nozzle steering structure, and the electronic control circuit controls the switching state of the first suction component and the second suction component to reverse, and the corresponding suction direction is reversed.

2. The dust suction adjustment device according to claim 1, characterized in that: The dust suction adjustment device also includes a first blowing component and a second blowing component. An air suction passage is formed between the first blowing component and the second suction component or between the second blowing component and the first suction component. The suction direction of the air suction passage is along the X-axis direction. The electronic control circuit controls the reversal of the switching states of the first suction component, the second suction component, the first blowing component and the second blowing component; the first suction component and the second suction component always maintain opposite working states, and the first blowing component and the second blowing component always maintain opposite working states to ensure that there is no counter-flow of air.

3. The dust suction adjustment device according to claim 1, characterized in that: The electronic control circuit includes a relay, a first electronic control switch and a second electronic control switch. The first electronic control switch is used to control the on / off state of the first air suction component; the second electronic control switch is used to control the on / off state of the second air suction component.

4. The dust suction adjustment device according to claim 2, characterized in that: The electronic control circuit includes a relay, a first electronic control switch and a second electronic control switch. The first electronic control switch is used to control the switching state of the first suction component and the first blowing component; the second electronic control switch is used to control the switching state of the second suction component and the second blowing component.

5. The dust suction adjustment device according to claim 4, characterized in that: The through-beam photoelectric sensor is connected to two relays at the same time, which respectively control the first electric control switch and the second electric control switch, so that the electric control switches are switched on and off according to the signals of the through-beam photoelectric sensor.

6. The dust suction adjustment device according to any one of claims 1 to 5, characterized in that: When the cutting nozzle steering structure is in a non-working state, the emitted light is 1 mm ± 0.5 mm away from the edge of the cutting nozzle steering structure along the X-axis direction, and the emitted light is not blocked.

7. The dust suction adjustment device according to claim 6, characterized in that: The dust suction adjustment device also includes a sensor fixing rod, and the transmitter and the receiver are respectively fixed on the main beam of the cutting machine by welding through the sensor fixing rod.

8. The dust suction adjustment device according to claim 7 is used for dust suction adjustment of a CNC bevel cutting machine, wherein the cutting machine further comprises an operating table, characterized in that: The second air suction component is close to one side of the operating table. When the cutting machine is in an initial state, the second air suction component is in a closed state and the first air suction component is in an open state to protect the operating table from smoke and dust.

9. The dust suction adjustment device according to claim 6, characterized in that: The cutting nozzle steering structure is a cylindrical soft steering structure of the cutting nozzle.

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