CN113148614A

CN113148614A - Material blocking control device of discharge cover of belt conveyor

Info

Publication number: CN113148614A
Application number: CN202110536474.8A
Authority: CN
Inventors: 钱亚红; 罗双强; 韩慧丹; 张跃民; 王一丁; 付恒; 朱建新; 赵志伟; 崔建华; 单德森; 王伟; 刘玉叶; 盛军杰; 周旭东; 朱丹; 程淋; 张瑞涛
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-07-23

Abstract

The application discloses a material blocking control device of a discharge cover of a belt conveyor, which comprises a PLC (programmable logic controller), a photoelectric tube and a movable door arranged at the lower part of a body of the discharge cover; the upper end of the movable door is rotatably connected with the body, the lower end of the movable door is connected with the driving mechanism, and the movable door is driven by the driving mechanism to open or close; the photoelectric tube is arranged on the upper part of the body; the photoelectric tube is in signal connection with the PLC, and the PLC controls the driving mechanism according to the blocking detection signal of the photoelectric tube. This application alleviates the putty through the dodge gate of automatic opening ejection of compact cover lower part, need not artifical clearance, has also avoided the emergence of disconnected material phenomenon simultaneously.

Description

Material blocking control device of discharge cover of belt conveyor

Technical Field

The application relates to the technical field of machinery, more specifically relates to a putty controlling means of ejection of compact cover of belt conveyor.

Background

In the existing tobacco industry cut tobacco production line, a belt conveyor is often used for conveying materials, and in order to prevent the materials from splashing when being conveyed to downstream equipment, a discharge cover is often arranged at the tail end of the belt conveyor, such as the belt conveyor 100 and the discharge cover 200 in fig. 1. As shown in FIG. 1, a service door 210 is provided at the upper portion of the discharge cover.

Because the inside space of ejection of compact cover is limited and closed relatively, in the actual production process, because various reasons, often take place putty in ejection of compact cover department easily to because the higher reasons such as the mounted position of conveyer, operative employee can not in time discover putty phenomenon, appear faults such as belt feeder belt breaking, damage when serious.

When taking place ejection of compact cover putty, current processing mode is the transport that stops the current process material, carries out artifical clearance through maintenance door 210, because the maintenance door of ejection of compact cover opens the area undersize, and the inner space is limited, has increased the clearance degree of difficulty for the clearance personnel, stops simultaneously that the material is carried and has caused the production disconnected material, produces unqualified batch.

Disclosure of Invention

The application provides a putty controlling means of ejection of compact cover of band conveyer alleviates the putty through the dodge gate of automatic opening ejection of compact cover lower part, need not artifical clearance, has also avoided the emergence of disconnected material phenomenon simultaneously.

The application provides a material blocking control device of a discharge cover of a belt conveyor, which comprises a PLC (programmable logic controller), a photoelectric tube and a movable door arranged at the lower part of a body of the discharge cover; the upper end of the movable door is rotatably connected with the body, the lower end of the movable door is connected with the driving mechanism, and the movable door is driven by the driving mechanism to open or close; the photoelectric tube is arranged on the upper part of the body; the photoelectric tube is in signal connection with the PLC, and the PLC controls the driving mechanism according to the blocking detection signal of the photoelectric tube.

Preferably, the both sides of dodge gate are equipped with the light trap respectively, and the photoelectric tube passes through first light trap and in with light emission ejection of compact cover to through second light trap with light ejection of compact cover.

Preferably, actuating mechanism includes the cylinder and fixes the cylinder support on the body, and the first end and the cylinder support of cylinder are articulated, and the second end of cylinder is equipped with the piston rod, the tip and the dodge gate fixed connection of piston rod.

Preferably, the first and second light-transmitting holes are covered by tempered glass.

Preferably, the upper part of the body is provided with a maintenance door, and the upper end or the lower end of the maintenance door is hinged with the body.

Preferably, the photocell comprises an emitting photocell and a receiving photocell, the emitting photocell being adjacent to the first light-transmitting hole, the receiving photocell being adjacent to the second light-transmitting hole.

Preferably, the photocell is an infrared photocell.

Preferably, the material blockage control device further comprises an audible and visual alarm, and the audible and visual alarm is in signal connection with the PLC.

Preferably, the transmitting photoelectric tube and the receiving photoelectric tube are respectively fixed on the body through a bracket.

Preferably, the first end of the bracket is provided with a positioning hole, and the second end of the bracket is provided with a screw hole; one end of the transmitting photoelectric tube or the receiving photoelectric tube is inserted into the positioning hole, and the support is connected with the body through the screw hole.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a prior art construction of a discharge hood;

FIG. 2 is a partial structural view of a blockage control device of a discharge cover of a belt conveyor provided by the present application;

fig. 3 is a structural diagram of an air path portion and a signal portion of the plugging control device provided by the present application;

FIG. 4 is a block diagram of the outfeed hood provided by the present application;

FIG. 5 is another block diagram of the outfeed hood provided by the present application;

FIG. 6 is a structural view of a tempered glass provided by the present application;

fig. 7 is a block diagram of a stent provided herein.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

The application provides a putty controlling means of belt conveyor's ejection of compact cover, the dodge gate that sets up on through the body in time will block up the automatic discharge of material in ejection of compact cover, avoids seriously blockking up the shut down that causes to avoid utilizing the maintenance door to carry out the inconvenience that manual cleaning brought.

As shown in fig. 2 and 3, the blocking control device of the discharging cover of the belt conveyor comprises a PLC controller 10, a photoelectric tube 5 and a movable door 23 (please refer to fig. 5 at the same time) arranged at the lower part of the body of the discharging cover.

As shown in fig. 2, the discharge end of the belt conveyor 1 is connected with a discharge cover 2. As shown in fig. 5, a maintenance door 22 is provided on the upper portion of the main body 21 of the discharging cover, and the upper end or the lower end of the maintenance door is hinged to the main body 21 for maintenance. The lower part of the body 21 is provided with a movable door 23, the upper end of the movable door 23 is rotatably connected with the body 21, and the lower end of the movable door 23 is opened or closed through a driving mechanism.

As shown in fig. 4, the driving mechanism includes a cylinder 7 and a cylinder bracket 6 fixed on the body 21, a first end of the cylinder 7 is hinged to the cylinder bracket 6, a second end of the cylinder 7 is provided with a piston rod, and an end of the piston rod passes through the movable door 23 and is locked by a nut, so that the cylinder 7 is fixedly connected with the movable door 23. When the piston rod of the air cylinder 7 pushes the movable door 23 to be opened or closed, the end part of the piston rod moves in an arc line along with the movable door, and the hinge joint between the air cylinder 7 and the air cylinder bracket 6 provides conditions for the arc line movement.

As shown in fig. 5, light holes 24 (i.e. a first light hole and a second light hole) are respectively formed in two sides of the movable door 23 on the upper portion of the body 21, and as shown in fig. 2 and 4, the light holes 24 are covered with the tempered glass 3, so that the materials are prevented from being splashed out of the discharging cover, and meanwhile, light passing through the light holes 24 is not affected. As shown in fig. 6, each of the four corners of the tempered glass is provided with a screw hole and fixed to the body 21 by screws. As shown in fig. 2-4, the photocell 5 includes an emitting photocell 51 and a receiving photocell 52, the emitting photocell 51 being adjacent to the first light-transmitting aperture, the receiving photocell 52 being adjacent to the second light-transmitting aperture. The light emitted by the photoelectric tube 51 enters the discharge cover through the first light hole and exits the discharge cover through the second light hole, and the photoelectric tube 52 senses the light at the second light hole, so that a material blockage detection signal is determined. Receive photoelectric tube 52 and PLC controller 10 signal connection, receive photoelectric tube 52 and detect the putty after, give PLC controller 10 with putty signal transmission.

Preferably, the photocell 5 is an infrared photocell.

As an example, the transmitting photoelectric tube 51 and the receiving photoelectric tube 52 are fixed to the body 21 by the holder 4, respectively. As shown in fig. 7, the bracket 4 has a "Z" shape, and both the first end and the second end thereof are perpendicular to a transition portion provided therebetween. The first end is located outside the tempered glass 3, i.e., covering the outer surface of the tempered glass. The first end is provided with a positioning hole 41, and one end of the transmitting photoelectric tube 51 or the receiving photoelectric tube 52 is inserted into the positioning hole 41 and positioned by screw connection. The second end is provided with screw holes 42, through which screw holes 42 the bracket 4 is fixed to the body 21.

The piston rod of the cylinder 7 extends and retracts under the control of the electromagnetic directional valve. The PLC 10 is connected with the electromagnetic directional valve by signals. When the material is piled up to be higher than the photoelectric tube 5, the receiving photoelectric tube 52 cannot detect the light emitted by the emitting photoelectric tube 51, so that the receiving photoelectric tube 52 emits a material blocking signal to the PLC 10. When the PLC 10 receives the material blocking signal of the receiving photoelectric tube 52 and sends an instruction to the electromagnetic directional valve, the electromagnetic directional valve is electrified and switched, the piston rod is controlled to push the movable door 23 to be opened, and the material blocked in the discharging cover is discharged. After unloading, the receiving photoelectric tube 52 can detect the light emitted by the transmitting photoelectric tube 51, the blocking signal of the receiving photoelectric tube 52 disappears, the PLC 10 instructs the electromagnetic directional valve, the electromagnetic directional valve is powered off and switched, and the piston rod is controlled to drive the movable door 23 to close.

Preferably, the blockage control device further comprises an audible and visual alarm 11, as shown in fig. 3. The audible and visual alarm 11 is in signal connection with the PLC 10, the PLC 10 sends an alarm signal to the audible and visual alarm 11 after receiving the material blocking signal of the photoelectric tube 52, and the audible and visual alarm 11 gives out audible and visual alarm.

Preferably, the driving mechanism of the movable door is arranged on both sides of the body 21, and the cylinders on both sides are respectively a first cylinder 71 and a second cylinder 72. In the preferred embodiment, as shown in fig. 7, the air inlets of the first ends of the first and

second air cylinders

71 and 72 are simultaneously connected to the air outlet of the first compressed air three-way quick coupling 81 through a compressed air hose; the air inlets of the second ends of the first and

second air cylinders

71 and 72 are connected to the air outlet of a second compressed air three-way quick coupling 82 through a compressed air hose. Further, the air inlets of the first compressed air three-way quick coupling 81 and the second compressed air three-way quick coupling 82 are respectively connected to two air outlets of the two-position five-way solenoid valve 9 through compressed air hoses. The above-mentioned compressed air hose connection mode can ensure that the piston rods of the first cylinder 71 and the second cylinder 72 extend out and retract simultaneously. The two-position five-way electromagnetic valve 9 is in signal connection with a PLC (programmable logic controller) 10.

During normal operation, the piston rods of the first cylinder 71 and the second cylinder 72 are in a withdrawing state, the movable door 23 is closed, and the bottom of the discharging cover 2 is funnel-shaped, so that splashing generated when materials are conveyed to downstream equipment is prevented.

When the material piles up the take the altitude in ejection of compact cover 2, shelter from the light of launching photoelectric tube 51, trigger the putty signal, receive photoelectric tube 52 with putty signal transmission to PLC controller 10, PLC controller 10 control audible-visual annunciator 11 reports to the police, two five-way solenoid valve 9 coils of simultaneous control get the electricity, and then the piston rod of control first cylinder 71 and second cylinder 72 stretches out, dodge gate 23 is opened, the material is automatic to be dredged, prevent that inside material from piling up too much. When the height of the material is reduced, the light of the photoelectric tube 51 returns to normal, the PLC 10 controls the audible and visual alarm 11 to stop giving an alarm, and controls the two-position five-way electromagnetic valve 9 to lose power, so that the direction of the gas circuit is changed, the piston rods of the first cylinder 71 and the second cylinder 72 are controlled to contract, the movable door 23 is closed, the normal working state is restored, and manual operation is reduced.

Preferably, after production, when needing to clean the terminal of belt conveyor 1 and the inside of ejection of compact cover 2, can utilize this putty controlling means to maintain, stretch out through PLC controller control cylinder promptly for the dodge gate becomes the open-type, convenient maintenance.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. The material blockage control device of the discharge cover of the belt conveyor is characterized by comprising a PLC (programmable logic controller), a photoelectric tube and a movable door arranged at the lower part of a body of the discharge cover;

the upper end of the movable door is rotatably connected with the body, the lower end of the movable door is connected with a driving mechanism, and the movable door is driven by the driving mechanism to open or close;

the photoelectric tube is arranged at the upper part of the body;

the photoelectric tube is in signal connection with the PLC, and the PLC controls the driving mechanism according to the blocking detection signal of the photoelectric tube.

2. The apparatus of claim 1, wherein the movable door has light holes on both sides thereof, and the photo tube emits light into the discharging cover through the first light hole and emits light out of the discharging cover through the second light hole.

3. The device for controlling material blockage of a discharging cover of a belt conveyor according to claim 1, wherein the driving mechanism comprises a cylinder and a cylinder support fixed on the body, a first end of the cylinder is hinged with the cylinder support, a second end of the cylinder is provided with a piston rod, and an end of the piston rod is fixedly connected with the movable door.

4. The blockage control device for the discharging cover of the belt conveyor as claimed in claim 2, wherein the first light-transmitting hole and the second light-transmitting hole are covered by tempered glass.

5. The blockage control device for the discharging cover of the belt conveyor as claimed in claim 3, wherein a maintenance door is arranged at the upper part of the body, and the upper end or the lower end of the maintenance door is hinged with the body.

6. The apparatus of claim 4, wherein the photocells comprise an emitting photocell and a receiving photocell, the emitting photocell being adjacent to the first light-transmitting hole, the receiving photocell being adjacent to the second light-transmitting hole.

7. The device for controlling blocking of a discharging hood of a belt conveyor according to claim 6, wherein the photoelectric cell is an infrared photoelectric cell.

8. The device for controlling the material blockage of the discharging cover of the belt conveyor according to claim 1, further comprising an audible and visual alarm, wherein the audible and visual alarm is in signal connection with the PLC.

9. The blockage control device for the discharging cover of the belt conveyor as claimed in claim 3, wherein the transmitting photocell and the receiving photocell are respectively fixed on the body through brackets.

10. The blockage control device for the discharge cover of the belt conveyor as claimed in claim 6 or 7, wherein a first end of the bracket is provided with a positioning hole, and a second end of the bracket is provided with a screw hole;

one end of the transmitting photoelectric tube or the receiving photoelectric tube is inserted into the positioning hole, and the support is connected with the body through the screw hole.