Anti-blocking monitoring dust collection system and sawing equipment

Abstract

The utility model discloses an anti-blocking monitoring dust collection system and saw cutting equipment, the dust collection system comprises a first pipeline, an excess material filter box and a second pipeline which are sequentially arranged in a penetrating mode, the first pipeline is provided with a dust collection port, a filter screen assembly is arranged in the excess material filter box, a wind speed sensor is arranged in the second pipeline, the wind speed sensor is electrically connected with a controller, and the controller is electrically connected with the controller. The controller is electrically connected with an alarm; the controller is used for receiving the wind speed, measured by the wind speed sensor, in the second pipeline and controlling starting and stopping of the alarm based on the wind speed. The wind speed sensor is used for monitoring the wind speed in the second pipeline in real time. The method is a non-intrusive detection mode and does not interfere with normal operation of the saw cutting device main body. A clear physical relationship exists between the wind speed and the blockage degree in a cabin of a dust suction port or a saw cutting device main body, and the reduction of the wind speed generally means blockage. According to the monitoring mode, the blockage problem can be found in time, and the defects that manual inspection is not timely and incomplete are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of plate processing equipment, in particular to a dust suction system and sawing equipment with anti-blocking monitoring. Background Art

[0002] In the furniture manufacturing industry, panel sawing equipment is one of the most common production equipment. This type of equipment is usually equipped with a dust collection system to collect dust and residual materials generated during the processing. However, the residual material filter box of the dust collection system often faces the problem of clogging, which not only affects the dust collection efficiency, but the accumulation of dust and residual materials may also affect the normal operation of the sawing equipment.

[0003] At present, the cleaning of blockages mainly relies on regular inspections and manual cleaning by operators. This management model has obvious defects: the cleaning frequency and quality often depend on the subjective initiative of the operator. In this case, the blockage or partial blockage may last for a long time without being discovered and handled in time.

[0004] Although the design of the dust collection system of panel sawing equipment is quite mature, the effective management of the problem of residual material blockage is still an urgent problem to be solved. Utility Model Content

[0005] The main purpose of the utility model is to provide a dust suction system and sawing equipment with anti-blocking monitoring. By arranging a wind speed sensor in the dust suction path and connecting it with a controller and an alarm, real-time monitoring and timely alarm of the blockage status of the dust suction system can be achieved, thereby avoiding long-term blockage without being discovered and handled in time.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A dust suction system with anti-blocking monitoring comprises: a first pipe, a residual material filter box and a second pipe which are sequentially connected, the first pipe is provided with a dust suction port, the residual material filter box is provided with a filter assembly, the second pipe is provided with a wind speed sensor, the wind speed sensor is electrically connected to a controller, the controller is electrically connected to an alarm, wherein the controller is used to receive a wind speed signal in the second pipe measured by the wind speed sensor, and control the opening and closing of the alarm based on the wind speed signal.

[0008] Wherein, the second pipeline vertically penetrates the top of the residual material filter box.

[0009] Wherein, the filter screen assembly includes a plurality of first filter layers spaced apart and distributed along the height direction of the residual material filter box.

[0010] Wherein, a second filter layer is connected between two adjacent first filter layers.

[0011] Wherein, the first filter layer includes a plurality of first through holes, and the second filter layer includes a plurality of second through holes.

[0012] The side wall of the residual material filter box includes a first side wall and a second side wall, the first side wall is connected with the first pipeline, the second side wall is provided with a through hole, and the through hole is provided with an openable and closable baffle.

[0013] Wherein, the wind speed sensor is a wind speed transmitter, and the wind speed transmitter comprises: a transmitter body and a probe, the transmitter body is fixed on the outer wall of the second pipe, and the probe is inserted into the second pipe.

[0014] Wherein, the alarm is an audible and visual alarm.

[0015] A sawing device comprises: a sawing device body and the above-mentioned anti-blocking monitoring dust suction system, wherein the dust suction port is connected to the cabin of the sawing device body.

[0016] Wherein, the sawing device body further comprises: a positioning tube arranged between the sawing device body and the wind speed sensor, wherein a connecting line connecting the wind speed sensor to the controller is arranged in the positioning tube.

[0017] Beneficial technical effects of the utility model:

[0018] The utility model uses a wind speed sensor to monitor the wind speed in the second pipe in real time. This is a non-invasive detection method that will not interfere with the normal operation of the sawing device body. There is a clear physical relationship between the wind speed and the degree of blockage inside the suction port or the cabin of the sawing device body. A decrease in wind speed usually means blockage. This monitoring method can detect blockage problems in a timely manner, solving the problem of untimely and incomplete manual inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a sawing device according to an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a wind speed sensor of a dust collection system according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of a residual material filter box of a dust collection system according to an embodiment of the utility model;

[0022] Figure 4 Schematic diagram of a filter assembly according to an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] In the figure: 1-first pipeline, 101-dust suction port, 2-residue filter box, 201-filter mesh assembly, 2011-first filter layer, 2012-second filter layer, 2013-first through hole, 2014-second through hole, 202-baffle, 3-second pipeline, 4-wind speed sensor, 401-transmitter body, 402-probe, 403-connecting line, 5-controller, 6-alarm, 7-sawing device body, 701-cabin, 8-positioning tube, 9-through hole. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0026] like Figure 1-Figure 4 As shown, the anti-blocking monitoring dust suction system provided in this embodiment includes: a first pipeline 1, a residual material filter box 2 and a second pipeline 3 which are sequentially arranged to penetrate each other.

[0027] The first pipe 1 is provided with a dust suction port 101 for sucking in wood chips and residues. The residue filter box 2 is provided with a filter assembly 201 for filtering the residues to prevent a certain volume of residues from passing through the residue filter box 2 and directly entering the second pipe 3, causing complete blockage and difficulty in cleaning.

[0028] A wind speed sensor 4 is provided in the second pipeline 3 for detecting the wind speed at a position after the residual material filter box 2 .

[0029] The controller 5 is electrically connected to the wind speed sensor 4 and the alarm 6, respectively, and is used to receive the wind speed (size) signal detected by the wind speed sensor 4, and control the opening and closing of the alarm 6 according to the wind speed signal. For example, the preset threshold value can be set to 18m / s, and the alarm 6 is triggered when the detected wind speed is lower than this threshold value.

[0030] The system determines whether the front end of the dust suction path is blocked by detecting the wind speed signal in the second pipe 3, and promptly alarms the operator to clean it, effectively avoiding the failure of the sawing device body 7 caused by long-term undetected blockage.

[0031] In this embodiment, the dust suction path refers to the dust suction path formed by the first pipe 1, the residual material filter box 2 and the second pipe 3, and the path is L-shaped. The first pipe 1 forms the horizontal part of the L-shape; the second pipe 3 forms the vertical part of the L-shape; the residual material filter box 2 is located between the horizontal part and the vertical part, forming the corner part of the L-shape.

[0032] This design enables the system to effectively inhale, filter and transport dust, and ensures that residual materials of a certain volume are not easy to enter the second pipe 3. At the same time, since the residual materials will accumulate in the residual material filter box 2, it is also convenient for operators to check and clean the residual materials in the residual material filter box 2.

[0033] In this embodiment, the front end of the dust suction path refers to the position of the residual material filter box 2 and the dust suction port 101 of the first pipe 1. In other embodiments, the front end of the dust suction path also refers to a position further forward than the dust suction port 101, such as the internal space of the cabin 701 of the sawing device body 7.

[0034] In this embodiment, the second pipe 3 vertically penetrates the top of the residual material filter box 2. This vertical design can utilize gravity to make heavier particles settle more easily in the residual material filter box 2, and will not be brought into the second pipe 3 by the airflow.

[0035] In addition, the vertical design of the second pipe 3 can make the airflow turn before entering the second pipe 3, which helps to further separate large particles in the airflow.

[0036] In this embodiment, the filter assembly 201 includes a plurality of first filter layers 2011 spaced apart along the height direction of the residual material filter box 2. The multi-layer filtration design improves the filtration effect and prevents the residual material from directly entering the second pipe 3 through a certain first filter layer 2011.

[0037] In addition, there is a certain space between two adjacent first filter layers 2011, which can be used to accommodate a certain amount of residual materials to avoid frequent blockage of the system during use. Moreover, the spacing between the layers also facilitates the cleaning of the deposited residual materials, thereby improving maintainability.

[0038] In this embodiment, a second filter layer 2012 is connected between two adjacent first filter layers 2011. The second filter layer 2012 is vertically arranged, and its main function is to fix and connect two adjacent first filter layers 2011, so that the multiple first filter layers 2011 can be used as a whole to stably block the residual material in the residual material filter box 2.

[0039] In this embodiment, each first filter layer 2011 is penetrated with a plurality of first through holes 2013, and each second filter layer 2012 is penetrated with a plurality of second through holes 2014. The first through holes 2013 are mainly used to ensure that wood chips can enter the second pipe 3 and prevent residual materials from entering the second pipe 3.

[0040] The design of the second through hole 2014 is not only to allow the wood chips to pass through the residual material filter box 2 and enter the second pipe 3, but also to help the residual materials to enter between the two first filter layers 2011 along a designated path. After the residual materials enter between the two first filter layers 2011, it is convenient for operators to clean them. The designated path here is the path formed by the second through hole 2014.

[0041] In other embodiments, by adjusting the size and distribution of the first through holes 2013 of different first filter layers 2011 , optimized filtration can be performed for residues of different sizes.

[0042] In this embodiment, the side wall of the residual material filter box 2 includes a first side wall and a second side wall (not marked in the drawings). The first side wall refers to a side wall that penetrates the first pipeline 1, and the other side wall of the residual material filter box 2 is the second side wall.

[0043] The second side wall is provided with a through hole 9, and an openable and closable baffle 202 is provided at the through hole 9. Take the residual material filter box 2 with four side walls as an example:

[0044] One side wall (first side wall) close to the sawing device body 7 is connected to the first pipe 1; the other three side walls (second side walls) are all provided with through holes 9, and each second side wall is hingedly connected to its adjacent baffle 202.

[0045] When it is necessary to clean the residual material in the residual material filter box 2, the baffle 202 can be opened to take out the residual material in the residual material filter box 2. The baffle 202 is closed when the dust collection system is in normal use.

[0046] In this embodiment, the wind speed sensor 4 is a wind speed transmitter, which includes two main parts: a transmitter body 401 and a probe 402. The transmitter body 401 is fixed to the outer wall of the second pipe 3, and the probe 402 is inserted into the second pipe 3.

[0047] This design prevents the transmitter body 401 from directly contacting the dust in the pipeline, thereby reducing the failure rate and extending the service life. At the same time, the probe 402 directly extends into the pipeline, so that the wind speed can be measured more accurately.

[0048] The wind speed sensor 4 can monitor the wind speed signal in the second pipe 3 in real time and transmit the signal to the controller 5. When the wind speed is lower than a preset threshold, the controller 5 will trigger the alarm 6.

[0049] In this embodiment, the wind speed transmitter is located directly above the residual material filter box 2, and the distance can be 1.5m to 3m. The wind speed transmitter is at a certain distance from the residual material filter box 2 to avoid the turbulence at the outlet of the residual material filter box 2 from interfering with the measurement results.

[0050] In this embodiment, the alarm 6 is an audible and visual alarm. The audible and visual alarm can emit sound and light signals at the same time, which can effectively attract the attention of operators in a noisy working environment. The sound alarm can promptly remind the surrounding staff, while the light signal can intuitively indicate which specific device has a problem.

[0051] In this embodiment, the alarm 6 is installed on the top of the sawing device body 7, so that the light signal emitted by the alarm 6 is more easily seen by the operator and surrounding staff, and the alarm can be noticed even at a long distance or in the presence of obstacles.

[0052] In addition, the space above the sawing device body 7 is relatively open, which is conducive to the propagation of the sound signal emitted by the alarm 6, making it easier for the operator to hear the alarm.

[0053] In this embodiment, the controller 5 adopts Siemens S7-1200 series PLC, specifically CPU 1214C model. The specific configuration of the PLC and the wind speed transmitter is as follows:

[0054] Siemens S7-1200 series, CPU 1214C, with 14 digital inputs, 10 digital outputs and 2 analog inputs; the wind speed transmitter outputs a 4-20mA analog current signal, corresponding to a wind speed range of 0-30m / s.

[0055] The positive output terminal of the transmitter body 401 is connected to the analog input terminal 0 (AI0) of the PLC; the negative output terminal of the transmitter body 401 is connected to the analog common terminal of the PLC; a 2-wire wiring method is adopted.

[0056] In the TIA Portal software, configure the analog input to the 4-20mA current measurement range; set the address of the analog input, for example IW64 (input word address 64).

[0057] In the PLC program, use the following formula to convert the analog input value into the actual wind speed: Wind speed = (analog input value / 27648)*30m / s, where 27648 is the digital value corresponding to the full scale of the S7-1200 analog value, and 30m / s is the upper limit of the wind speed transmitter.

[0058] Set the wind speed alarm threshold to 18m / s; in the PLC program, continuously compare the calculated wind speed value with the threshold. If the wind speed is lower than the threshold, the digital output is triggered after a delay of 1 second to control alarm 6.

[0059] Through this configuration, the data of the wind speed transmitter can be accurately collected and processed, and the real-time monitoring function can be realized to ensure the reliable operation of the entire anti-blocking monitoring dust collection system.

[0060] In this embodiment, a sawing device is also provided, which includes a sawing device body 7 and the above-mentioned anti-blocking monitoring dust suction system, wherein the dust suction port 101 of the dust suction system is connected to the cabin 701 inside the sawing device body 7 .

[0061] This design integrates the dust collection system with anti-blocking monitoring into the sawing device body 7, which can not only monitor in real time whether the residual material filter box 2 is blocked, but also monitor in real time the accumulation of dust and residual materials in the cabin 701. When the dust or residual materials in the cabin 701 accumulate to a certain extent, the wind speed in the second pipe 3 will decrease, thereby triggering an alarm.

[0062] This integrated design greatly reduces the risk of equipment failure due to long-term undetected accumulation of dust or residual materials inside cabin 701, and improves the service life and production efficiency of the equipment.

[0063] In this embodiment, in order to better protect the wind speed sensor 4 and its connecting wire 403, a positioning tube 8 is further provided between the sawing device body 7 and the transmitter body 401. The exposed connecting wire 403 between the sawing device body 7 and the transmitter body 401 is inserted into the positioning tube 8.

[0064] The connection wires 403 mainly include signal transmission wires, power connection wires, etc. The positioning tube mainly provides protection for the connection wires 403 to prevent the connection wires 403 from hanging around the sawing device body 7 for a long time.

[0065] In this embodiment, the cleaning process between the dust collection system and the sawing device body 7 is as follows:

[0066] 1. Initial alarm triggering: When the wind speed drops below a preset threshold (eg, 18 m / s), the controller 5 triggers the alarm 6 to sound and light an alarm.

[0067] 2. Check the residual material filter box 2: a) After receiving the alarm, the operator first checks the residual material filter box 2; b) If blockage is found, proceed to step 3; if no blockage is found, jump directly to step 4.

[0068] 3. Cleaning of residual material filter box 2: a) Clean the residual material filter box 2; b) After cleaning, observe whether the wind speed is restored: if the wind speed recovers to above 18m / s, resume normal operation and the process ends; if the wind speed still does not recover to above 18m / s, proceed to step 4.

[0069] 4. Check and clean the cabin 701: a) Check and clean the interior of the cabin 701; b) After cleaning, observe the wind speed again: if the wind speed recovers to above 18m / s, resume normal operation and the process ends; if the wind speed still does not recover to above 18m / s, proceed to step 5.

[0070] 5. Timeout judgment and forced shutdown: If more than 5 minutes have passed since the initial alarm was triggered and the wind speed has not recovered: the sawing device body 7 will be forced to shut down; a comprehensive inspection and maintenance is required until the problem is resolved.

[0071] 6. Resuming normal operation: Once the wind speed returns to above 18 m / s, the normal operation of the dust collection system and the sawing device body 7 can be resumed regardless of the stage.

[0072] This instant feedback mechanism can effectively remind operators to clean up in time, avoiding the risk of blockage problems being ignored or delayed.

[0073] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A dust collection system with anti-blocking monitoring, characterized in that: include: A first pipe (1), a residual material filter box (2) and a second pipe (3) are sequentially connected, the first pipe (1) is provided with a dust suction port (101), the residual material filter box (2) is provided with a filter assembly (201), the second pipe (3) is provided with a wind speed sensor, the wind speed sensor (4) is electrically connected to a controller (5), and the controller (5) is electrically connected to an alarm (6); wherein the controller (5) is used to receive a wind speed signal in the second pipe (3) measured by the wind speed sensor (4), and to control the opening and closing of the alarm (6) based on the wind speed signal.

2. The anti-blocking monitoring dust collection system according to claim 1, characterized in that: The second pipe (3) vertically passes through the top of the residual material filter box (2).

3. The anti-blocking monitoring dust collection system according to claim 2, characterized in that: The filter screen assembly (201) comprises a plurality of first filter layers (2011) spaced apart and distributed along the height direction of the residual material filter box (2).

4. The anti-blocking monitoring dust collection system according to claim 3, characterized in that: A second filter layer (2012) is connected between two adjacent first filter layers (2011).

5. The anti-blocking monitoring dust collection system according to claim 4, characterized in that: The first filter layer (2011) includes a plurality of first through holes (2013), and the second filter layer (2012) includes a plurality of second through holes (2014).

6. The anti-blocking monitoring dust collection system according to claim 1, characterized in that: The side wall of the residual material filter box (2) comprises a first side wall and a second side wall, the first side wall is arranged to penetrate the first pipe (1), the second side wall is provided with a through hole, and an openable and closable baffle (202) is provided at the through hole.

7. The anti-blocking monitoring dust collection system according to claim 1, characterized in that: The wind speed sensor (4) is a wind speed transmitter, comprising: a transmitter body (401) and a probe (402), wherein the transmitter body (401) is fixed on the outer wall of the second pipe (3), and the probe (402) is inserted into the second pipe (3).

8. The anti-blocking monitoring dust collection system according to any one of claims 1 to 7, characterized in that: The alarm (6) is an audible and visual alarm.

9. A sawing device, characterized in that: include: The sawing device body (7) is connected to the anti-blocking monitoring dust suction system according to any one of claims 1 to 8, and the dust suction port (101) is connected to the cabin of the sawing device body (7).

10. The sawing device according to claim 9, characterized in that The sawing device body (7) further comprises: a positioning tube (8) arranged between the sawing device body (7) and the wind speed sensor (4), wherein a connecting line (403) connecting the wind speed sensor (4) to the controller (5) is arranged in the positioning tube (8).

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