A paint room exhaust gas collection system based on servo positioning

Abstract

The utility model relates to a waste gas collection system for a spray paint room based on servo positioning, the system includes a waste gas absorption device and a spray gun positioning device, and the waste gas absorption device is connected to the spray gun positioning device through a control device; wherein the waste gas absorption device includes a waste gas absorption cover, and the waste gas absorption cover is connected to the control device through a first drive device; the spray gun positioning device includes a spray gun, and the spray gun is connected to the control device through a second drive device, and the second drive device is connected to a direction knob for adjusting the direction of the spray gun, and the spray gun is connected to the control device through a positioning sensor. The utility model can make the spray paint room meet the best airflow organization form, ensure accurate collection of waste gas, and at the same time reduce the absorbed air volume, equipment power and carbon emissions, achieving the purpose of environmental protection and energy saving.

Description

Technical Field

[0001] The utility model belongs to the field of waste gas collection in paint spray booths, and in particular relates to a waste gas collection system for paint spray booths based on servo positioning. Background Art

[0002] At present, the exhaust gas collection devices for paint spray rooms on the market mostly use mobile spray guns, and the exhaust gas collection adopts an open fixed collection method. This collection method does not take the position of the spray gun into consideration and adopts a comprehensive ventilation method, resulting in large supply, return and exhaust air volumes, huge equipment selection, high operating energy consumption, and poor collection effect.

[0003] In view of this, the inventor provides a paint booth exhaust gas collection system based on servo positioning to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and propose a paint spray room exhaust gas collection system based on servo positioning. The system is provided with a control device and a spray gun positioning device and an exhaust gas absorption device connected thereto. The control device can make the exhaust gas absorption device follow the moving direction of the spray gun positioning device and collect the paint exhaust gas, thereby ensuring the hygiene standards of the paint spray room.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A servo positioning-based paint spraying room exhaust gas collection system comprises an exhaust gas absorption device and a spray gun positioning device, wherein the exhaust gas absorption device and the spray gun positioning device are connected via a control device;

[0007] Wherein, the exhaust gas absorption device comprises an exhaust gas absorption cover, and the exhaust gas absorption cover is connected to the control device through a first driving device;

[0008] The spray gun positioning device comprises a spray gun, which is connected to a control device via a second drive device, the second drive device is connected to a direction knob for adjusting the direction of the spray gun, and the spray gun is connected to the control device via a positioning sensor.

[0009] Furthermore, the second driving device includes a main motor and a first driver connected thereto, the first driver is connected to the control device and the direction knob respectively, and the main motor is connected to the spray gun.

[0010] Further, the first driving device includes a first slave motor arranged along the X-axis direction of the exhaust gas absorption cover and a second driver connected thereto, a second slave motor arranged along the Y-axis direction of the exhaust gas absorption cover and a third driver connected thereto, and a third slave motor arranged along the Z-axis direction of the exhaust gas absorption cover and a fourth driver connected thereto;

[0011] The first slave motor, the second slave motor and the third slave motor are all connected to the exhaust gas absorption cover, and the second driver, the third driver and the fourth driver are all connected to the control device.

[0012] Furthermore, the first driving device and the second driving device are both bidirectionally connected to the control device.

[0013] Furthermore, the exhaust gas absorption device further comprises a limiting unit, and the limiting unit is connected to the exhaust gas absorption cover. Furthermore, the control device is a PLC controller.

[0014] Further, the limit unit includes a first limit sensor arranged along the X-axis direction of the exhaust gas absorption cover, a second limit sensor arranged along the Y-axis direction of the exhaust gas absorption cover, and a third limit sensor arranged along the Z-axis direction of the exhaust gas absorption cover;

[0015] The first limit sensor, the second limit sensor and the third limit sensor are connected to the exhaust gas absorption cover and the control device respectively.

[0016] Furthermore, the control device is a PLC controller.

[0017] Furthermore, the positioning sensor is a UWB positioning sensor.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a waste gas collection system for a paint spraying room based on servo positioning. The system enables the waste gas absorption device to move in the direction of painting of the spray gun through a control device, and accurately collects the waste gas from the paint spraying, so that the paint spraying room meets the best airflow organization form, and ensures accurate collection of waste gas. At the same time, it also reduces the absorbed air volume, equipment power and carbon emissions, thereby achieving the purpose of environmental protection and saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a working principle diagram of the waste gas collection system of the paint spraying room of the utility model;

[0023] Figure 2It is a simulation diagram of air supply flow lines in the embodiment of the utility model;

[0024] Figure 3 It is a simulation diagram of the return air flow line in the embodiment of the utility model;

[0025] Figure 4 This is a simulation diagram of the air flow lines of the slits in the embodiment of the utility model;

[0026] Figure 5 It is a velocity cloud diagram at X=1.95m (indicating 1.95 meters in the positive direction of the X-axis of the exhaust gas absorption cover) in the embodiment of the present utility model.

[0027] Among them: 1 is the exhaust gas absorption device; 2 is the control device; 3 is the spray gun positioning device; 11 is the exhaust gas absorption cover; 12 is the first drive device; 13 is the limit unit; 31 is the spray gun; 32 is the second drive device; 33 is the direction knob; 34 is the positioning sensor. DETAILED DESCRIPTION

[0028] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Instead, they are only examples of devices consistent with some aspects of the present utility model as detailed in the attached claims.

[0029] See also Figure 1 to Figure 5 , the embodiment of the utility model provides a paint spraying room exhaust gas collection system based on servo positioning, including an exhaust gas absorption device 1 and a spray gun positioning device 3, and the exhaust gas absorption device 1 is connected to the spray gun positioning device 3 through a control device 2;

[0030] The exhaust gas absorption device 1 includes an exhaust gas absorption cover 11, and the exhaust gas absorption cover 11 is electrically connected to a first driving device 12, and the first driving device 12 is electrically connected to the control device 2, and the two are bidirectionally connected;

[0031] In this embodiment, the spray gun positioning device 3 includes a spray gun 31, which is electrically connected to a second drive device 32. The second drive device 32 is electrically connected to the control device 2, and the two are bidirectionally connected. The input end of the second drive device 32 is electrically connected to the output end of the direction knob 33. Specifically, the direction knob 33 is in the form of up, down, left, and right buttons. By pressing the buttons of the direction knob 33, the second drive device 32 can be driven to drive the direction of the spray gun 31 and perform a painting operation. The spray gun 31 is electrically connected to a positioning sensor 34, and the output end of the positioning sensor 34 is electrically connected to the first input end of the control device 2, which is used to transmit the position signal of the spray gun 31 to the control device 2 in real time. After receiving the position signal, the control device 2 starts the first drive device 12, and the first drive device 12 drives the exhaust gas absorption cover 11 to follow the movement of the spray gun 31 to ensure that the direction of the exhaust gas absorption cover 11 is consistent with the painting direction of the spray gun 31.

[0032] In this embodiment, the second drive device 32 includes a main motor and a first driver, the first output end of the first driver is electrically connected to the input end of the main motor, the first input end of the first driver is electrically connected to the output end of the direction knob 33, the second output end of the first driver is electrically connected to the second input end of the control device 2, and the second input end of the first driver is electrically connected to the first output end of the control device 2, that is, the control device 2 can send signals and receive signals, and the output end of the main motor is electrically connected to the input end of the spray gun 31.

[0033] In this embodiment, the first driving device 12 includes a first slave motor arranged along the X-axis direction of the exhaust gas absorption cover 11 and a second driver connected thereto, a second slave motor arranged along the Y-axis direction of the exhaust gas absorption cover 11 and a third driver connected thereto, and a third slave motor arranged along the Z-axis direction of the exhaust gas absorption cover 11 and a fourth driver connected thereto;

[0034] Specifically, the input end of the first slave motor is electrically connected to the first output end of the second driver, the input end of the second slave motor is electrically connected to the first output end of the third driver, and the input end of the third slave motor is electrically connected to the first output end of the fourth driver;

[0035] Furthermore, the output ends of the first slave motor, the second slave motor and the third slave motor are electrically connected to the input end of the exhaust gas absorption cover 11, the first input ends of the second driver, the third driver and the fourth driver are electrically connected to the second output end of the control device 2, and the second output ends of the second driver, the third driver and the fourth driver are electrically connected to the third input end of the control device 2, that is, the control device 2 can send signals and receive signals.

[0036] Specifically, the control device 2 receives the position signal sent by the positioning sensor 34, determines to start the second driver / third driver / fourth driver according to the painting direction, and then drives the slave motor in the corresponding direction of the exhaust gas absorption cover 11 to drive the exhaust gas absorption cover 11 to adjust the direction and collect exhaust gas. That is, when the control device 2 receives that the painting direction of the spray gun 31 is in the X-axis direction of the exhaust gas absorption cover 11, the second driver is started to drive the first slave motor to drive the exhaust gas absorption cover 11 to turn in the direction of the X-axis.

[0037] The master motor, the first slave motor, the second slave motor and the third slave motor are all servo motors, and the first driver, the second driver, the third driver and the fourth driver are all servo drivers.

[0038] In this embodiment, the exhaust gas absorption device 1 further includes a limiting unit 13 , and the limiting unit 13 is electrically connected to the exhaust gas absorption cover 11 .

[0039] The limit unit 13 includes a first limit sensor arranged along the X-axis direction of the exhaust gas absorption cover 11, a second limit sensor arranged along the Y-axis direction of the exhaust gas absorption cover 11, and a third limit sensor arranged along the Z-axis direction of the exhaust gas absorption cover 11;

[0040] Specifically, the input ends of the first limit sensor, the second limit sensor and the third limit sensor are all electrically connected to the output end of the exhaust gas absorption cover 11, and the output ends of the first limit sensor, the second limit sensor and the third limit sensor are all electrically connected to the fourth input end of the control device 2.

[0041] Preferably, the control device 2 in this embodiment is a PLC controller, and the model of the PLC controller is S7-1500. The S7-1500 is a prior art and will not be described in detail here.

[0042] Specifically, the purpose of setting the first limit sensor, the second limit sensor and the third limit sensor is to play a role in the safety limit of the exhaust gas absorption hood 11, transmit the electrical signal to the PLC controller, and the PLC controller determines whether to start or shut down the second driver / third driver / fourth driver to ensure the safe and reliable operation of the exhaust gas absorption hood 11.

[0043] Preferably, the positioning sensor 34 in this embodiment is a UWB positioning sensor.

[0044] The specific implementation process of the paint spray room exhaust gas collection system in this embodiment includes the following steps:

[0045] Step 1, connect the control device 2 to the power supply, and then press the direction knob 33 of the spray gun 31, the direction knob 33 transmits an electrical signal to the first driver to drive the main motor and then drive the spray head of the spray gun 31 to spray paint in a direction, and perform the painting operation;

[0046] Step 2, the positioning sensor 34 obtains the spraying direction of the spray gun 31 and transmits the position signal to the control device 2. After receiving the signal, the control device 2 starts the second driver or the third driver or the fourth driver and drives it;

[0047] Specifically, the second driver drives the first slave motor, the third driver drives the second slave motor, and the fourth driver drives the third slave motor;

[0048] Step 3: The first slave motor, the second slave motor, or the third slave motor drives the exhaust gas absorption cover 11 to move in the spraying direction of the spray gun 31 and collect the exhaust gas at the same time.

[0049] In order to further illustrate the effect of the present invention, this embodiment provides the following test:

[0050] The painting workshop with the size of 5m×3.5m×3.5m (L×B×H) was selected as the physical model, and the feasibility of the exhaust gas collection system of the paint spraying room was analyzed by CFD numerical simulation;

[0051] The specific simulation settings are: air supply mode: top supply and bottom return, unidirectional flow, and energy equation is not considered; top air supply outlet size: 5m×3.5m, lower return air outlet size: 5m×3.5m, slit air outlet size: 1.5m×0.15m.

[0052] The simulation parameters are set as follows: slit height is 2.8m, air supply velocity is 0.6m / s, and slit air outlet velocity is 0.23kg / s. The simulation results are as follows: Figure 2 , Figure 3 , Figure 4 as well as Figure 5 shown.

[0053] Depend on Figure 2 , Figure 3 , Figure 4 as well as Figure 5 It can be seen that the exhaust gas collection system of the paint spraying room of the utility model reduces the absorbed air volume, reduces the equipment power, reduces the carbon emission, and achieves the purpose of saving energy consumption.

[0054] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0055] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A paint room exhaust gas collection system based on servo positioning, characterized in that: It comprises an exhaust gas absorption device (1) and a spray gun positioning device (3), wherein the exhaust gas absorption device (1) and the spray gun positioning device (3) are connected via a control device (2); The exhaust gas absorption device (1) comprises an exhaust gas absorption cover (11), and the exhaust gas absorption cover (11) is connected to the control device (2) via a first driving device (12); The spray gun positioning device (3) comprises a spray gun (31), wherein the spray gun (31) is connected to a control device (2) via a second drive device (32), wherein the second drive device (32) is connected to a direction knob (33) for adjusting the direction of the spray gun (31), and the spray gun (31) is connected to the control device (2) via a positioning sensor (34).

2. The paint spray booth exhaust gas collection system based on servo positioning according to claim 1 is characterized in that: The second driving device (32) comprises a main motor and a first driver connected thereto, the first driver being connected to the control device (2) and the direction knob (33) respectively, and the main motor being connected to the spray gun (31).

3. The paint spray booth exhaust gas collection system based on servo positioning according to claim 1 is characterized in that: The first driving device (12) comprises a first slave motor arranged along the X-axis direction of the exhaust gas absorption cover (11) and a second driver connected thereto, a second slave motor arranged along the Y-axis direction of the exhaust gas absorption cover (11) and a third driver connected thereto, and a third slave motor arranged along the Z-axis direction of the exhaust gas absorption cover (11) and a fourth driver connected thereto; The first slave motor, the second slave motor and the third slave motor are all connected to the exhaust gas absorption cover (11), and the second driver, the third driver and the fourth driver are all connected to the control device (2).

4. The paint spray booth exhaust gas collection system based on servo positioning according to claim 1 is characterized in that: The first drive device (12) and the second drive device (32) are both bidirectionally connected to the control device (2).

5. The paint spray booth exhaust gas collection system based on servo positioning according to claim 1 is characterized in that: The exhaust gas absorption device (1) further comprises a limiting unit (13), wherein the limiting unit (13) is connected to the exhaust gas absorption cover (11).

6. The paint spray booth exhaust gas collection system based on servo positioning according to claim 5 is characterized in that: The limit unit (13) comprises a first limit sensor arranged along the X-axis direction of the exhaust gas absorption cover (11), a second limit sensor arranged along the Y-axis direction of the exhaust gas absorption cover (11), and a third limit sensor arranged along the Z-axis direction of the exhaust gas absorption cover (11); The first limit sensor, the second limit sensor and the third limit sensor are respectively connected to the exhaust gas absorption cover (11) and the control device (2).

7. The paint spray booth exhaust gas collection system based on servo positioning according to any one of claims 1 to 6, characterized in that: The control device (2) is a PLC controller.

8. The paint spray booth exhaust gas collection system based on servo positioning according to claim 1, characterized in that: The positioning sensor (34) is a UWB positioning sensor.

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