CN216511109U - Unloading circulation helps a class device - Google Patents

Abstract

The application relates to the field of material conveying, in particular to a blanking circulation flow assisting device, which comprises a blanking circulation flow assisting device, a detection device, a circulation circuit, a material dredging device and a power supply for supplying power, wherein the detection device is electrically connected with the circulation circuit, the circulation circuit is electrically connected with the material dredging device, and the material dredging device is arranged on a discharge hopper; the detection device detects the height of the materials on the conveying device, and the material dredging device is controlled by the circulating circuit to circularly start material dredging until the materials are dredged. This application has the effect that reduces the belt weigher and appear disconnected material phenomenon.

Description

A cutting and circulating flow-assisting device

technical field

The present application relates to the field of material conveying, and in particular, to a material-cutting circulation flow aid device.

Background technique

The belt scale is an important device in the cement mixing plant, which has the functions of material conveying and material measurement. The belt scale is generally composed of transmission structure, weighing frame, load cell, speed sensor and display instrument. Calculate, and finally get the quality of the material flowing through the belt scale.

During the production process, the belt scale receives the ingredients from the hopper on the silo, the belt scale conveys the material through the conveying structure, performs weight detection through the load-bearing bridge, and detects the speed of the belt through the speed sensor, and then transports the weighed material to the lift. bucket machine.

In view of the above-mentioned related art, the inventor believes that there are the following defects. When the material in the hopper is relatively wet, the belt scale often has the problem of material breakage, which affects the measurement accuracy of the belt scale.

Utility model content

In order to reduce the phenomenon of material breakage of the belt scale, the present application provides a cutting circulation flow aid device.

A kind of unloading circulation flow-assisting device provided by the application adopts the following technical scheme:

A blanking circulation flow aid device, comprising:

A detection device, a circulation circuit, a material dredging device and a power supply for power supply, the detection device is electrically connected with the circulation circuit, the circulation circuit is electrically connected with the material dredging device, and the material dredging device is installed on the discharge hopper;

The detection device detects the height of the material on the conveying device, and controls the material dredging device to cycle through the circulation circuit to start the dredging until the material is dredged.

By adopting the above technical solution, when the detection device detects the material breakage on the conveying device, it sends a detection signal to the control module, and the control module controls the start of the dredging device. There is a material break on the conveyor.

Preferably, the detection device comprises a detection unit installed on the discharge hopper and a trigger for triggering the detection unit, the trigger member is rotatably connected with the discharge hopper, and the trigger member can abut with the material on the conveying device, And follow the height change of the material to rotate the inclination angle.

By adopting the above technical solution, when the discharge is normal, the material falls on the conveying device. At this time, the height of the material on the conveying device is high, and the material presses the trigger to make the trigger rotate and contact the detection unit. When the discharge is abnormal, the The height of the material on the conveyor is low, and the trigger is rotated in the vertical direction to turn away from the detection unit, so as to detect whether there is a broken material on the conveyor.

Preferably, the trigger member is configured as a plate-like structure, and the trigger member has an elongated edge portion.

By adopting the above technical solution, the setting of the edge portion is used to increase the contact area between the trigger and the material, and to improve the detection accuracy.

Preferably, the detection unit is set as a limit switch SQ, and the limit switch SQ is connected in the power supply circuit of the material dredging device to control the opening and closing of the material dredging device.

By adopting the above technical solution, the trigger member rotates to trigger the limit switch SQ so that the limit switch SQ is in an open state, and the material dredging device is in a shutdown state at this time. When the trigger member rotates away from the limit switch SQ, the limit switch SQ is closed. , so that the dredging device starts.

Preferably, the material-removing device is configured as an air cannon that releases impact gas.

By adopting the above technical solution, the air cannon releases the compressed gas to flush out the blocked material, and the circulation circuit enables the air cannon to circulate and open to continuously impact the blocked material.

Preferably, a solenoid valve KA for controlling the on-off of the circuit is connected to the power supply circuit of the material dredging device (3).

By adopting the above technical solution, the limit switch SQ is closed, the solenoid valve KA is connected to the power supply circuit of the power supply, the air cannon is turned on, the limit switch is opened and closed, the power supply circuit of the solenoid valve KA is cut off, and the air cannon is closed at this time.

Preferably, the circulation circuit includes a relay KM and a relay KT, the relay KM is provided with a control terminal KM-1, and the relay KT is provided with a control terminal KT-1 and a control terminal KT-2;

One end of the relay KT is electrically connected to one end of the control terminal KM-1, one end of the relay KM is electrically connected to one end of the KT-1, and one end of the solenoid valve KA is electrically connected to one end of the control terminal KT-2;

The other end of the relay KT, the other end of the relay KM, and the other end of the solenoid valve KA are all electrically connected to the zero line of the power supply;

The other end of the control terminal KM-1, the other end of the control terminal KT-1 and the other end of the control terminal KT-2 are all electrically connected to one end of the limit switch SQ, and the other end of the limit switch SQ is connected to the power supply. Firewire electrical connection.

By adopting the above technical solution, when the material is cut off, the limit switch SQ is closed, the solenoid valve KA is connected to the power supply circuit, the air cannon impacts the material once, and the coil of the relay KT is energized, and the control terminal KT-1 is extended. When the control terminal KT-2 is closed and the delay is disconnected, after the control terminal KT-2 is delayed and disconnected, the dredging device stops working; after the control terminal KT-1 is delayed and disconnected, the coil of the relay KM is de-energized, and the control terminal KM -1 is closed, if the limit switch SQ is always in the closed state, the solenoid valve KA is cyclically connected to the power supply circuit, and the air gun circulates until the feeding is normal.

Preferably, the relay KM is set as a second-level time relay, and the relay KT is set as a millisecond-level time relay.

By adopting the above technical solution, the millisecond-level time relay is used to control the opening of the solenoid valve KA, and the second-level time relay is used for the time cycle.

Preferably, the delay time of the relay KM is not less than 15 seconds, and the delay time of the relay KT is 0.05 milliseconds to 0.2 milliseconds.

By adopting the above technical solution, the solenoid valve KA is energized for 0.05 milliseconds to 0.2 milliseconds at a time, and the time interval for the circulating operation of the air cannon is more than 15 seconds.

Preferably, a control switch SB is connected in parallel with the limit switch SQ.

By adopting the above technical solution, the control switch SB is closed, so that the user can manually control the control module to open.

Description of drawings

FIG. 1 is a related art diagram of a blanking circulation flow aid device of the present application.

FIG. 2 is a schematic diagram of the overall structure of a feeding circulation flow aid device according to an embodiment of the present application.

FIG. 3 is a circuit connection diagram of a control module in a blanking circulation flow aid device of the present application.

FIG. 4 is a schematic structural diagram showing a detection device and a material dredging device in a feeding circulation flow aid device according to an embodiment of the present application.

FIG. 5 is an enlarged view of a part of the structure of part A in FIG. 4 .

Reference numerals: 01, discharge hopper; 02, discharge port; 03, conveying device; 1, detection device; 10, detection unit; 11, trigger structure; 12, trigger part; 120, installation hole one; 121, installation hole Two; 122, rotating rod; 123, edge part; 13, mounting plate; 130, mounting seat; 14, bolt; 15, support piece; 150, support plate; 151, support rod; 2, control module; 20, circulation circuit ; 3. Material dredging device; 30. Outlet pipe.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-5.

Referring to FIG. 1 , a discharge port 02 is opened at the bottom of the discharge hopper 01 on the silo, and the discharge port 02 is placed above the conveying device 03 , and the conveying device 03 is set as a belt scale. The material can continuously fall on the conveying device 03 from the discharge hopper 01, and the conveying device 03 sends the material out.

The embodiment of the present application discloses a material-feeding circulation flow-assisting device. Referring to Figure 2 and Figure 3, the unloading circulation flow-assist device includes a detection device 1, a control module 2 and a material dredging device 3 arranged on the discharge hopper 01. The detection device 1 is used to detect the height of the material on the conveying device 03. If the material The height is relatively low, indicating that there is blockage at the discharge port 02 at this time, the detection device 1 outputs a detection signal to the control module 2, and the control module 2 controls the material dredging device 3 to start to clear the blocked material.

Referring to Figure 4, the dredging device 3 is arranged as a plurality of air cannons, the dredging device 3 is provided with an air outlet pipe 30 for releasing the compressed gas, the outer wall of the discharge hopper 01 is welded with a bracket, and the dredging device 3 is welded on the bracket, The air outlet pipe 30 extends into the discharge hopper 01 and communicates with the interior of the discharge hopper 01. When the material in the discharge hopper 01 is blocked, opening the material dredging device 3 can release the compressed gas to flush the blocked material.

4, the detection device 1 includes a detection unit 10 and a trigger structure 11, the detection unit 10 is configured as a limit switch SQ, the trigger structure 11 includes a trigger member 12 and a mounting plate 13, and the trigger member 12 and the mounting plate 13 are both configured as rectangular plates The mounting plate 13 is provided with a mounting hole 120, the side wall of the hopper 01 is provided with a mounting hole two 121, the mounting hole one 120 and the mounting hole two 121 are provided with bolts 14, and the bolts 14 are threadedly connected with nuts. , to fix the mounting plate 13 on the discharge hopper 01 . 5 , a mounting seat 130 is welded on the side wall of the mounting plate 13, a rotating rod 122 is welded on the trigger member 12, one end of the rotating rod 122 is rotatably connected with the mounting seat 130, and the other end of the rotating rod 122 is welded with the trigger member 12, The end of the trigger 12 facing away from the end connected with the discharge hopper 01 is provided with an elongated edge portion 123, and the edge portion 123 is used for abutting with the material.

Referring to FIG. 3 , a support 15 for fixing the detection unit 10 is mounted on the mounting plate 13 , the support 15 includes a support plate 150 and a support rod 151 , the support plate 150 is welded to the mounting plate 13 , and one end of the support rod 151 is connected to the mounting plate 13 After welding, the other end of the support rod 151 is inclined downward, the detection unit 10 is installed on the end of the support rod 15 away from the mounting plate 13 , and the rotation of the trigger 12 can trigger the detection unit 10 .

2 , the control module 2 includes a solenoid valve KA and a circulation circuit 20 for cyclically starting the solenoid valve KA. The circulation circuit 20 includes a relay KM and a relay KT, the relay KM is provided with a control terminal KM-1, and the relay KT is provided with a control terminal KM-1. Terminal KT-1 and control terminal KT-2, one end of the limit switch SQ is electrically connected to the live wire of the power supply, and the other end of the limit switch SQ is electrically connected to the control terminal KM-1 of the relay KM, and the control terminal KM-1 The other end of the relay is electrically connected to one end of the relay KT coil, and the other end of the relay KT coil is electrically connected to the neutral line of the power supply. One end of the limit switch SQ connected to the control terminal KM-1 is also connected to one end of the relay KT control terminal KT-1, the other end of the control terminal KT-1 is electrically connected to one end of the relay KM coil, and the other end of the relay KM coil is electrically connected. It is electrically connected to the neutral line of the power supply. One end of the limit switch SQ connected to the control terminal KM-1 is also electrically connected to one end of the control terminal KT-2 of the relay KT, and the other end of the control terminal KT-2 is electrically connected to one end of the solenoid valve KA. The other end is electrically connected to the neutral line of the power supply. The relay KM is set as a second-level time relay, the relay KT is set as a millisecond-level time relay, the delay time of the relay KM is T seconds, and the T second is more than 15 seconds, such as 15 seconds, 17 seconds, 20 seconds, etc., the relay KT The delay time is T milliseconds, and T milliseconds in this application may be 0.05 milliseconds, 0.1 milliseconds, 0.15 milliseconds, 0.2 milliseconds, and so on. The solenoid valve KA is a switch that controls the start of the air cannon rapping coil. The solenoid valve KA is disconnected, the material dredging device 3 stops working, the solenoid valve KA is opened, and the material dredging device 3 is started.

When the material is continuously discharged, the trigger 12 is in contact with the top of the material, and the limit switch SQ is continuously triggered, and the limit switch SQ is in a disconnected state. is in a shutdown state.

When the material is cut off, the trigger 12 rotates toward the vertical state to turn away from the limit switch SQ, the limit switch SQ is closed, the solenoid valve KA is connected to the power supply circuit, and the dredging device 3 is activated, and the discharge port is turned on. 02 Blow in the air to blow the material down, every time the material dredging device 3 is turned on, it will impact the material once. At the same time, the coil of the relay KT is energized, the control terminal KT-1 is delayed to close, the control terminal KT-2 is delayed to disconnect, and after the control terminal KT-2 is delayed to be disconnected, the dredging device 3 stops working; After the time is disconnected, the coil of the relay KM is de-energized, and the control terminal KM-1 is closed. If the limit switch SQ is always in the closed state, the relay KM plays the role of time cycle, so that the dredging device 3 runs cyclically until the feeding is normal.

The limit switch SQ is connected in parallel with the control switch SB. The control switch SB is set as a key switch. When the control switch SB is turned off, the limit switch SQ can be connected to the power supply circuit of the power supply. When the control switch SB is closed, the solenoid valve KA is turned on cyclically. , so that the user can manually control the dredging device 3 to make it run cyclically.

The implementation principle of a blanking circulation flow assist device in the embodiment of the present application is as follows: when the material is cut off, the trigger 12 turns away from the limit switch SQ, the limit switch SQ is closed, the power supply circuit of the solenoid valve KA is turned on, and the The feeding device 3 starts to impact the blocked material in the discharge hopper 01, and at the same time, the relay KM controls the dredging device 3 to cycle on and performs multiple impacts until the material is continuously discharged. The trigger member 12 rotates to trigger the limit switch SQ, and the limit switch SQ is turned on. , the dredging device 3 stops working.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (10)

1. The blanking circulation flow aiding device is characterized in that: comprises that

The device comprises a detection device (1), a circulation circuit (20), a material dredging device (3) and a power supply for supplying power, wherein the detection device (1) is electrically connected with the circulation circuit (20), the circulation circuit (20) is electrically connected with the material dredging device (3), and the material dredging device (3) is arranged on a discharge hopper (01);

the detection device (1) detects the height of the materials on the conveying device (03), and the material dredging device (3) is controlled to circularly start material dredging through the circulating circuit (20) until the materials are dredged.

2. The blanking circulation flow aiding device according to claim 1, wherein: detection device (1) is including installing detection element (10) on play hopper (01) and being used for triggering trigger piece (12) of detection element (10), trigger piece (12) and play hopper (01) rotate to be connected, trigger piece (12) can with the material butt on conveyer (03) to follow the altitude variation rotation inclination of material.

3. The blanking circulation flow aiding device according to claim 2, wherein: the trigger piece (12) is arranged to be of a plate-shaped structure, and the trigger piece (12) is provided with a long strip-shaped edge part (123).

4. The blanking circulation flow aiding device according to claim 2, wherein: the detection unit (10) is arranged as a limit switch SQ, and the limit switch SQ is connected in a power supply circuit of the material dredging device (3) so as to control the opening and closing of the material dredging device (3).

5. The blanking circulation flow aid device according to claim 4, wherein: the material dredging device (3) is arranged to be an air cannon which releases impact gas.

6. The blanking circulation flow aid device according to claim 5, wherein: and an electromagnetic valve KA for controlling the on-off of the circuit is connected in a power supply circuit of the material dredging device (3).

7. The blanking circulation flow aid device according to claim 6, wherein: the circulating circuit (20) comprises a relay KM and a relay KT, wherein the relay KM is provided with a control end KM-1, and the relay KT is provided with a control end KT-1 and a control end KT-2;

one end of the relay KT is electrically connected with one end of the control end KM-1, one end of the relay KM is electrically connected with one end of the KT-1, and one end of the electromagnetic valve KA is electrically connected with one end of the control end KT-2;

the other end of the relay KT, the other end of the relay KM and the other end of the electromagnetic valve KA are electrically connected with a zero line of a power supply;

the other end of the control end KM-1, the other end of the control end KT-1 and the other end of the control end KT-2 are electrically connected with one end of a limit switch SQ, and the other end of the limit switch SQ is electrically connected with a live wire of a power supply.

8. The blanking circulation flow aid device according to claim 7, wherein: the relay KM is set as a second-level time relay, and the relay KT is set as a millisecond-level time relay.

9. The blanking circulation flow aid device according to claim 8, wherein: the delay time of the relay KM is not less than 15 seconds, and the delay time of the relay KT is 0.05-0.2 milliseconds.

10. The blanking circulation flow aid device according to claim 9, wherein: and the limit switch SQ is connected with a control switch SB in parallel.

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