Dust collection system capable of monitoring blockage and sawing equipment

Abstract

The dust collection system comprises a first pipeline and a second pipeline which form a dust collection path, the first pipeline is communicated with a cabin of the sawing equipment, 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 an alarm. 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 capable of blockage monitoring and a sawing device. Background Art

[0002] In the furniture manufacturing industry, panel sawing equipment is one of the most commonly used production equipment. Due to its processing characteristics, the sawing process will produce dust and residual materials in the equipment cabin. The accumulation of these materials may hinder the normal operation of the saw car control cable.

[0003] Although plate sawing equipment is usually equipped with a dust collection system, this system mainly deals with dust and has limited effect on cleaning up residual materials. At present, the treatment of residual materials mainly relies on operators to manually clean up after production, which lacks real-time and initiative.

[0004] Since it is difficult for operators to find and clean up the accumulation of residual materials in the cabin in time during the production process, when the residual materials accumulate to a certain extent, the larger residual materials may get stuck in the cables in the cabin, or even cause the cables to break, which not only affects the service life of the equipment, but also reduces production efficiency.

[0005] Although the design of dust collection system for panel sawing equipment is quite mature, the effective management of residual material blockage is still an urgent problem to be solved. Utility Model Content

[0006] The main purpose of the utility model is to provide a dust suction system and sawing equipment that can monitor blockages. By setting a wind speed sensor in the dust suction path and coordinating it with a controller and an alarm, real-time monitoring of the blockage status and timely alarm can be achieved to avoid long-term blockage without being discovered and handled in time.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A dust suction system capable of blockage monitoring is used for sawing equipment. The dust suction system comprises: a first pipe and a second pipe constituting a dust suction path, the first pipe is connected to a cabin of the sawing equipment, a wind speed sensor is provided in the second pipe, the wind speed sensor is electrically connected to a controller, the controller is electrically connected to an alarm, 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 according to the wind speed signal.

[0009] The dust suction path is in an L-shape, the first pipe constitutes a transverse part of the L-shape, and the second pipe constitutes a vertical part of the L-shape.

[0010] Wherein, the wind speed sensor includes: a sensor body fixed to the outer wall of the second pipe and a probe inserted into the second pipe.

[0011] Wherein, the alarm is an audible and visual alarm.

[0012] Wherein, a dust suction port is provided at the front end of the first pipe, and a filter assembly is provided at the dust suction port.

[0013] Wherein, the filter screen assembly comprises: multiple layers of filter screens spaced apart along the dust collection path.

[0014] Wherein, the inner diameter of the mesh of the multiple layers of filter screens decreases layer by layer along the dust collection path.

[0015] Wherein, the mesh holes of two adjacent layers of the filter screens are staggered.

[0016] A sawing device comprises: a sawing device body and the dust collection system capable of blockage monitoring as described above, wherein the cabin is arranged in the sawing device body, and the first pipe is connected to the cabin.

[0017] Wherein, the sawing equipment further comprises: a positioning tube, which is arranged between the sawing device body and the wind speed sensor and is used to accommodate a connecting line of the wind speed sensor.

[0018] Beneficial technical effects of the utility model:

[0019] 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

[0020] Figure 1 A schematic diagram of a sawing device according to an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of a wind speed sensor of a dust collection system according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of a first pipeline of a dust collection system according to an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the first part of the pipeline and the filter screen inside the dust collection system of the embodiment of the utility model;

[0024] Figure 5This is a schematic diagram of the first pipeline and the filter screen inside the dust collection system of an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] In the figure: 1-first pipe, 101-dust suction port, 102-first part of the pipe, 103-second part of the pipe, 2-second pipe, 3-wind speed sensor, 301-sensor body, 302-probe, 303-connecting line, 4-controller, 5-alarm, 6-filter, 601-first layer filter, 602-second layer filter, 603-connecting rod, 7-sawing device body, 8-cabin, 9-positioning tube. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-Figure 5 As shown, the dust suction system capable of blockage monitoring provided in this embodiment is used for a sawing device, and the sawing device includes: a sawing device body 7 and a cabin 8 inside the sawing device.

[0029] The dust collection system comprises: a first pipe 1 and a second pipe 2 which are arranged through-through, and the two pipes together constitute a dust collection path.

[0030] The first pipe 1 is directly connected to the cabin 8 of the sawing device and is used to absorb dust from the cabin; the second pipe 2 serves as a continuation of the dust suction path and sends the dust to a collection device or a discharge device (not shown in the drawings).

[0031] A wind speed sensor 3 is provided in the second pipe 2 for real-time measurement of the wind speed in the second pipe 2. The wind speed sensor 3 can capture the change of the air flow speed in the second pipe 2, which helps the operator to determine whether the front end of the first pipe, i.e., the interior of the cabin, is blocked.

[0032] The controller 4 is electrically connected to the wind speed sensor 3 and the alarm 5 respectively, and is used to receive the wind speed signal in the second pipe detected by the wind speed sensor 3, and control the opening and closing of the alarm 5 according to the wind speed signal.

[0033] For example, the preset wind speed threshold may be set to 18 m / s. When the detected wind speed signal is lower than the threshold, the controller 4 triggers the alarm 5 to promptly remind the operator to perform inspection and cleaning.

[0034] The system determines whether the front end of the dust collection path, that is, the cabin 8, is blocked by detecting the wind speed signal in the second pipe 2, and promptly alarms to remind the operator to clean up the residual materials accumulated in the cabin 8.

[0035] This effectively avoids more serious blockages and malfunctions of the sawing device caused by blockages due to long-term undetected blockages. The blockage in the cabin 8 is generally caused by the accumulation of residual materials, which have a certain volume and are usually long and thin wood strips.

[0036] In this embodiment, the dust suction path is L-shaped.

[0037] The first duct 1 forms the transverse part of an L-shape:

[0038] The first pipe 1 is arranged horizontally and is directly connected to the cabin 8 of the sawing device to ensure that the dust in the cabin can be sucked in.

[0039] The second pipe 2 forms the vertical part of the L-shape:

[0040] The second pipe 2 is arranged vertically relative to the first pipe 1. Such a design transports the dust upward and finally enters a collection device or a discharge device behind the dust collection path.

[0041] In addition, the vertical setting of the second pipe 2 can utilize the effect of gravity to prevent the residual material from passing through the second pipe 2 into the collection device or discharge device behind it, thereby avoiding blockage due to excessive residual material on the way of the dust collection path.

[0042] In this embodiment, the wind speed sensor 3 includes a sensor body 301 and a probe 302 . The sensor body 301 is fixed to the outer wall of the second pipe 2 , and the probe 302 is inserted into the second pipe 2 .

[0043] The wind speed sensor 3 may be installed in the middle of the second pipe 2, at a certain distance from the connection between the second pipe 2 and the first pipe 1, so as to avoid interference of possible turbulence at the connection with the measurement result.

[0044] In this embodiment, the wind speed sensor 3 is a wind speed transmitter, and the sensor body 301 is the transmitter body.

[0045] In this embodiment, the alarm 5 is an audible and visual alarm. The audible and visual alarm can be installed on the top edge of the sawing device body 7, which can ensure that the sound can be transmitted to a long distance and the light signal can be within the sight range. By using the audible and visual alarm, the alarm effect of the system can be improved, ensuring that the operator can find the blockage problem in time.

[0046] In this embodiment, the front end of the first pipe 1 is set as a dust suction port 101 for sucking dust in the cabin 8, and a filter assembly is provided at the dust suction port 101. The filter assembly is mainly used to prevent the residual material from quickly accumulating in the first pipe 1.

[0047] When there is too much residual material accumulated around the filter assembly or in the cabin 8 and causes blockage, the wind speed in the first pipe 1 and the second pipe 2 will inevitably be affected. At this time, the wind speed sensor 3 and the controller 4 are used in coordination to control the alarm 5 to promptly remind the operator, which can avoid the blockage state continuing for a long time without being discovered in time.

[0048] In this embodiment, the filter assembly includes: multiple layers of filter screens 6 spaced apart along the dust collection path. Specifically, the multiple layers of filter screens 6 are spaced apart along the horizontal direction. Taking two layers of filter screens 6 as an example:

[0049] The first layer of filter screen 601 is located on the inner wall of the dust suction port 101 , and the second layer of filter screen 602 is located behind the first layer of filter screen 601 .

[0050] The first filter screen 601 and the second filter screen 602 are detachably connected and have a certain distance therebetween to form a specific space, which can be used to temporarily store the residual material that has passed through the first filter screen 601 but is blocked by the second filter screen 602.

[0051] In this embodiment, the detachable connection between the first filter layer 601 and the second filter layer 602 can be achieved by means of buckles, threads or slots, etc., to ensure that they can be accurately reset after disassembly and cleaning to maintain the original filtering effect. Take the threaded method as an example:

[0052] The outer contours of the first filter screen 601 and the second filter screen 602 are both circular frames, and two symmetrical connecting rods 603 are installed on the rear side of the outer contour of the first filter screen 601. The connecting rod 603 is rotatable relative to the first filter screen 601, and one end of the connecting rod 603 away from the first filter screen 601 is provided with an external thread.

[0053] Two left-right symmetrical internal thread holes are arranged on the front side of the outer contour of the second filter screen 602. One end of the connecting rod 603 can be screwed into the corresponding internal thread hole to realize the detachable connection between the first filter screen 601 and the second filter screen 602.

[0054] In this embodiment, the inner diameter of the mesh of the multi-layer filter decreases layer by layer along the dust collection path.

[0055] Specifically, each layer of filter screen 6 has meshes of different specifications. The meshes of the first layer of filter screen 601 are larger, and are used to intercept larger volumes of residual materials. The meshes of the second layer of filter screen 602 are smaller, and are used to filter smaller volumes of residual materials. This design not only ensures the filtering effect, but also prevents the second layer of filter screen 602 from being quickly blocked by larger volumes of residual materials.

[0056] In this embodiment, the first pipeline 1 is designed in sections, including: a detachably connected first pipeline portion 102 and a second pipeline portion 103. The first pipeline portion 102 is connected to the cabin 8, and the second pipeline portion 103 is connected to the second pipeline 2.

[0057] The filter assembly can be installed in the first pipe portion 102 by means of a flange or a quick connector, etc., to facilitate overall disassembly and maintenance.

[0058] In this embodiment, the meshes of two adjacent layers of filter screens are staggered, which means that the meshes of the second layer of filter screen 602 correspond to the solid areas of the meshes of the first layer of filter screen 601, so as to prevent the smaller volume of residual materials from passing through the meshes of the first layer of filter screen 601 and then directly passing through the meshes of the second layer of filter screen 602.

[0059] In this embodiment, the controller 4 can not only directly determine whether to turn on or off the alarm 5 according to the wind speed signal, but also indirectly determine whether to turn on or off the alarm 5 according to the wind speed signal.

[0060] For example, the wind speed signal is converted into a corresponding pressure signal. When there is residual material blocking the cabin 8, the dust suction wind speed will be significantly reduced. The reduction in wind speed also directly causes a reduction in the negative pressure value in the second pipeline 2, and there is a linear change relationship between the two.

[0061] In one embodiment, the controller includes a signal input module, a signal conversion module, a pressure determination module, an alarm control module and a forced shutdown module (not shown in the drawings).

[0062] The signal input module is used to receive the wind speed signal from the wind speed sensor 3 (wind speed transmitter). The signal conversion module converts the input wind speed signal into a corresponding pressure signal. This module performs conversion based on the linear relationship between wind speed and negative pressure.

[0063] The pressure judgment module compares the converted pressure signal with the preset pressure threshold. This threshold corresponds to a wind speed of 18m / s. The alarm control module controls the activation of the sound and light alarm when the pressure is lower than the preset pressure threshold.

[0064] If the alarm duration exceeds the preset value (5 minutes), the forced shutdown module will send a shutdown signal.

[0065] This embodiment utilizes the relationship between wind speed and pressure and indirectly monitors the pressure change in the second pipeline by measuring the wind speed, thereby determining the blockage condition.

[0066] In this embodiment, a sawing device is also provided, which comprises a sawing device body 7 and the above-mentioned dust collection system, wherein a cabin 8 is arranged in the sawing device body 7 , and the first pipeline 1 is connected to the cabin 8 .

[0067] This design integrates the dust collection system into the cabin 8 of the sawing device body 7, and can monitor in real time whether there is blockage in the cabin 8. When the residual material in the cabin 8 accumulates to a certain extent, the wind speed in the second pipe 2 will decrease, thereby triggering an alarm.

[0068] This integrated design greatly reduces the risk of equipment failure caused by long-term undetected accumulation of residual materials inside the cabin 8, and improves the service life and production efficiency of the sawing equipment.

[0069] In this embodiment, in order to better protect the connection line 303 of the wind speed sensor 3, a positioning tube 9 is further provided between the sawing device body 7 and the wind speed sensor 3. The connection line 303 of the wind speed sensor 3 is provided in the positioning tube 9. The connection line 303 mainly includes a signal transmission line connected to the controller 4 and a power line connected to an external power supply.

[0070] The positioning tube 9 is mainly used to provide protection and positioning for the connecting wire 303 that is not in the sawing device body 7, so as to prevent a part of the connecting wire 303 from hanging outside the sawing device body 7 for a long time.

[0071] 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 suction system capable of blockage monitoring, the dust suction system being used for sawing equipment, characterized in that: The dust collection system comprises: a first pipe (1) and a second pipe (2) constituting a dust collection path, the first pipe (1) being connected to a cabin (8) of the sawing device, a wind speed sensor (3) being arranged in the second pipe (2), the wind speed sensor (3) being electrically connected to a controller (4), the controller (4) being electrically connected to an alarm (5), the controller (4) being used for receiving a wind speed signal in the second pipe (2) measured by the wind speed sensor (3), and controlling the opening and closing of the alarm (5) according to the wind speed signal.

2. The dust collection system capable of blockage monitoring according to claim 1, characterized in that: The dust suction path is in an L-shape, the first pipe (1) constitutes a transverse part of the L-shape, and the second pipe (2) constitutes a vertical part of the L-shape.

3. The dust collection system capable of blockage monitoring according to claim 1, characterized in that: The wind speed sensor (3) comprises: a sensor body (301) fixed to the outer wall of the second pipe (2) and a probe (302) inserted into the second pipe (2).

4. The dust collection system capable of blockage monitoring according to claim 1, characterized in that: The alarm (5) is an audible and visual alarm (5).

5. The dust collection system capable of blockage monitoring according to claim 1, characterized in that: A dust suction port (101) is provided at the front end of the first pipe (1), and a filter assembly is provided at the dust suction port (101).

6. The dust collection system capable of blockage monitoring according to claim 5, characterized in that: The filter screen assembly comprises: multiple layers of filter screens (6) distributed at intervals along the dust collection path.

7. The dust collection system capable of blockage monitoring according to claim 6, characterized in that: The inner diameter of the mesh holes of the multiple layers of filter screens (6) decreases layer by layer along the dust collection path.

8. The dust collection system capable of blockage monitoring according to claim 6, characterized in that: The mesh holes of two adjacent layers of the filter screens (6) are staggered.

9. A sawing device, characterized in that: include: The sawing device body (7) and the dust collection system capable of blockage monitoring as claimed in any one of claims 1 to 8, wherein the cabin (8) is provided in the sawing device body (7), and the first pipe (1) is connected to the cabin (8).

10. The sawing device according to claim 9, characterized in that The sawing device further comprises: a positioning tube (9), which is arranged between the sawing device body (7) and the wind speed sensor (3) and is used to accommodate a connecting line (303) of the wind speed sensor (3).

Images