CN210122358U - Scraper conveying equipment - Google Patents

Abstract

The utility model discloses a scraper conveying device, which comprises a feeding component and a scraper conveying component connected with the feeding component; the feeding assembly comprises a feed hopper and a spiral conveying assembly arranged in the feed hopper; the screw conveyor assembly conveys material toward the feed end of the flight conveyor assembly. The utility model discloses the material is carried evenly stably, can not cause mechanical shock to scraper blade conveying subassembly, can not damage chain and scraper blade conveying subassembly, and the floating chain can not appear, can be applicable to the quick transport of viscidity material, and energy-concerving and environment-protective can realize automated inspection trouble and get rid of partial failure simultaneously.

Description

Scraper conveying equipment

Technical Field

The utility model belongs to the technical field of material conveying equipment technique and specifically relates to a scraper blade conveying equipment is related to.

Background

The existing scraper conveyor has the advantages of strong conveying capacity, good sealing dustproof effect, large conveying angle, compact structure, convenience in installation, operation and maintenance and the like, so that the scraper conveyor is widely applied. As shown in fig. 1, the conventional scraper conveyor includes a housing 1 'mounted on a frame 3', a sprocket chain structure 2 'disposed in the housing 1' for conveying, and scrapers 4 'disposed on the chain, wherein the housing 1' has a feeding port 101 'and a discharging port 102' at both ends. During the use, feed inlet 101 ' feeding, the material falls into casing 1 ' feed end bottom, and along with the operation of chain, scraper blade 4 ' on the chain promotes the material and carries to the discharge gate 102 ' of discharge end by casing 1 ' feed end bottom, and current scraper conveyor has better effect to general material transport, nevertheless has following shortcoming:

1. the feeding hole is small, the feeding is required to be uniform and slow, once the falling amount of the materials is excessive, the chain tension is increased, mechanical impact is caused on the whole scraper conveyor, and the chain is broken seriously, so that economic loss and difficult maintenance are caused; if a forklift or a dumper is used for dumping materials to the feeding hole, slow operation is needed, the efficiency is low, the labor intensity is high, and equipment failure is easily caused;

2. when the conveying belt has certain moisture and viscous materials, a layer of materials are easy to accumulate at the bottom of the shell, and after a long time, the accumulated materials are hardened to cause the floating chain phenomenon of the scraper conveyor, so that the conveying capacity is reduced, the load is increased, and chain breakage accidents can be caused in serious cases;

3. failure cannot be detected automatically and partial failure can be relieved by self-regulation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough with regard to overcoming prior art to provide a scraper blade conveying equipment, the utility model discloses material transport is even stable, can not cause mechanical shock to scraper blade conveying subassembly, can not damage chain and scraper blade conveying subassembly, and the floating chain can not appear, can be applicable to the quick transport of viscidity material, and energy-concerving and environment-protective can realize automated inspection trouble and get rid of partial failure simultaneously. In order to achieve the purpose, the utility model provides a scraper conveying device, which comprises a feeding component and a scraper conveying component connected with the feeding component; the feeding assembly comprises a feed hopper and a spiral conveying assembly arranged in the feed hopper; the screw conveyor assembly conveys material toward the feed end of the flight conveyor assembly.

Furthermore, the scraper conveying assembly comprises a shell, two chain wheels which are respectively arranged at the feeding end and the discharging end of the shell through rotating shafts, a chain for connecting the two chain wheels, a plurality of scrapers arranged along the chain, and a driving part connected with one rotating shaft; and the rotating shaft positioned at the feeding end of the shell is connected with the spiral conveying assembly.

Further, the rotating shaft at the discharge end of the shell is connected with the driving part.

Further, both sides of pivot are all connected with the spiral delivery module at casing feed end department.

Further, the spiral conveying assembly comprises a spiral conveying shaft rotatably mounted on the feed hopper and a spiral conveying blade positioned on the spiral conveying shaft; the spiral conveying shaft is connected with the rotating shaft at the feeding end of the shell.

The chain pressing assembly comprises a support, a tension spring and a pressing wheel, one end of the support is rotatably connected with the shell, and the other end of the support is rotatably connected with the pressing wheel; two ends of the tension spring are respectively connected with the shell and one end of the bracket; the pinch roller compresses tightly the chain.

Further, the feeding assembly also comprises a loose material decompression assembly; the material loosening and pressure reducing assembly comprises a pressure reducing shaft rotatably arranged on the feed hopper and a plurality of stirring rods arranged along the length direction of the pressure reducing shaft; the decompression shaft is connected with the spiral conveying assembly through a transmission assembly.

Further, the feeding assembly further comprises a detection assembly for detecting whether the decompression shaft rotates normally.

Further, the detection assembly comprises a porous rotary disc connected with the end part of the decompression shaft and a first photoelectric sensor connected with the feed hopper, and the first photoelectric sensor corresponds to a hole in the porous rotary disc.

Further, the scraper conveying device also comprises a programmable logic controller connected with the detection assembly and the scraper conveying assembly.

Further, the feeding assembly further comprises a vibration motor connected with the feeding hopper.

The device further comprises a discharging component connected with the discharging end of the scraper conveying component, wherein the discharging component comprises a discharging pipe, a valve, a balancing weight and a second photoelectric sensor; the valve is rotatably connected with the discharge pipe and is used for closing/opening the discharge pipe; the balancing weight is connected with the valve and used for enabling the valve to close the discharge pipe; the second photoelectric sensor is connected with the discharge pipe and used for detecting the position of the balancing weight so as to judge whether the valve is opened or closed.

Further, the system also comprises a programmable logic controller connected with the second photoelectric sensor and the scraper conveying assembly.

The utility model has the advantages that:

1. the utility model discloses under the effect of feeder hopper, can save more material, forklift or tipper can directly pour the material into, have improved material transport efficiency greatly, simultaneously under screw conveyor assembly's effect, evenly carry the material in the feeder hopper to scraper blade conveyor assembly on stably to can not cause mechanical shock to scraper blade conveyor assembly, can not damage chain and scraper blade conveyor assembly, and cause economic loss scheduling problem.

2. The utility model discloses scraper blade conveying subassembly realizes scraper blade conveying subassembly and spiral conveying subassembly sharing power supply with power transmission to spiral conveying subassembly, and is energy-concerving and environment-protective, and compact structure.

3. The utility model discloses under the pretightning force effect of extension spring, the pinch roller effectively compresses tightly the chain, makes the chain hug closely the casing bottom and carries, scrapes the casing bottom sizing completely, makes the floating chain phenomenon can not appear in scraper blade conveying subassembly, effectively guarantees material transport capacity and efficiency, can be applicable to the quick transport of viscidity material, and application range is wide, breaks away from current scraper conveyor and appears the floating chain phenomenon, and makes transport capacity reduce, and the load increase arouses the broken chain accident. The utility model discloses a tension spring improves the pretightning force, if there is hard thing to get into in the casing, the chain can jack-up pinch roller, can not damage scraper blade conveying assembly, safe and reliable.

4. The utility model discloses a loose material decompression subassembly plays loose effect to the material in the feed hopper, prevents that the material from hardening phenomenons such as arching, reduces the load for screw conveyor of screw conveyor subassembly, improves screw conveyor subassembly's auger delivery efficiency and life. The utility model discloses when the scraper blade conveying subassembly was with power transmission to the screw feed subassembly, the screw feed subassembly realized scraper blade conveying subassembly, screw feed subassembly and pine material decompression subassembly sharing power supply, energy-concerving and environment-protective and compact structure with power transmission to pine material decompression assembly.

5. The utility model discloses a determine module is used for whether normal the rotation of real-time detection decompression axle to whether the troubleshooting decompression subassembly breaks down, and whether troubleshooting spiral delivery unit and scraper blade conveying component break down etc. realize automated inspection and eliminate partial failure, improve troubleshooting efficiency.

6. The utility model discloses during the long-pending material in feeder hopper inclined plane, start vibrating motor, will long-pending material shake down and fall into the screw conveyor subassembly, effectively prevent long-pending material, improve material conveying efficiency.

7. The utility model discloses the ejection of compact subassembly is equivalent to a gravity valve, and when no material passed through the discharging pipe, the weight of balancing weight made the valve be in the closed condition to detect the position of balancing weight through second photoelectric sensor, be in not ejection of compact, normal ejection of compact, long-pending material or jam with judging the discharging pipe, accelerated troubleshooting time and efficiency greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a conventional scraper conveyor.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a partial top view of fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is a schematic view of a partial structure of the chain pressing assembly of the present invention.

Fig. 6 is a schematic structural view of the discharging assembly of the present invention.

Fig. 7 is a right side view of fig. 6.

Fig. 8 is a schematic structural diagram of the detecting assembly of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 2 to 8, the present embodiment provides a scraper conveyor, which includes a feeding assembly 2 and a scraper conveyor assembly 1 connected to the feeding assembly 2; the feeding component 2 comprises a feeding hopper 20 and a spiral conveying component 21 arranged in the feeding hopper 20; the screw conveyor assembly 21 conveys material towards the feed end of the flight conveyor assembly 1.

Under the effect of feeder hopper 20 in this embodiment, can save more material, forklift or tipper can directly pour the material into, the efficiency of material transport is greatly improved, simultaneously under screw conveyor assembly 21's effect, evenly carry the material in the feeder hopper 20 to scraper conveyor assembly 1 on stably, thereby can not cause mechanical shock to scraper conveyor assembly 1, can not damage chain 11 and scraper conveyor assembly 1, and cause economic loss scheduling problem, this life who improves this embodiment equipment greatly, the later maintenance cost is reduced.

Further preferably, as shown in fig. 2 and 3, the scraper conveyor assembly 1 includes a housing 10, two sprockets 12 respectively mounted at the feeding end and the discharging end of the housing 10 through a rotating shaft, a chain 11 connecting the two sprockets 12, a plurality of scrapers 13 arranged along the chain 11, and a driving part connected to the rotating shaft; a rotating shaft at the feed end of the housing 10 is connected to the auger assembly 21. In this embodiment, the rotating shaft at the discharging end of the housing 10 is preferably connected to the driving part. In the present embodiment, the driving unit includes a driving motor 14 and a speed reducer connected to the driving motor 14. The scraper conveying assembly of this embodiment naturally further includes a frame 5 supporting the housing 10, and the scraper conveying assembly 1 of this embodiment is the same as the prior art, and therefore, will not be described in detail. When the material conveying device is used, the driving motor 14 drives the chain 11 and the chain wheel 12 to move, and the scraper 13 on the chain 11 pushes materials to be conveyed from the feeding end to the discharging end of the shell 10.

This embodiment scraper blade conveying subassembly 1 is with power transmission to spiral conveying subassembly 21, realizes scraper blade conveying subassembly 1 and spiral conveying subassembly 21 power source sharing, and energy-concerving and environment-protective, and compact structure. This embodiment is preferred, both sides of casing 10 feed end department pivot all are connected with spiral delivery module 21, under the effect of both sides spiral delivery module 21, evenly carry the material on both sides of feeder hopper 20 to casing 10 feed end, improve material conveying efficiency.

Preferably, as shown in fig. 2 and 3, the spiral conveying assembly 21 includes a spiral conveying shaft 210 rotatably mounted on the feeding hopper 20 and a spiral conveying blade 211 located on the spiral conveying shaft 210; the screw conveyor shaft 210 is connected to the rotating shaft at the feed end of the housing 10. In this embodiment, the spiral conveying shaft 210 and the rotating shaft at the feeding end of the housing 10 are in an integral structure, that is, they are coaxial, or the spiral conveying shaft 210 and the rotating shaft at the feeding end of the housing 10 may be in a separate structure and then connected together, which is not limited specifically.

2-5, the scraper conveying device further includes a chain pressing assembly 3, the chain pressing assembly 3 includes a bracket 31, a tension spring 32 and a pressing wheel 30, one end of the bracket 31 is rotatably connected to the housing 10, and the other end is rotatably connected to the pressing wheel 30; two ends of the tension spring 32 are respectively connected with one end of the shell 10 and one end of the bracket 31; the press wheel 30 presses the chain 11. In this embodiment, two ends of the tension spring 32 are fixedly connected with the hanging rings, and are respectively in threaded connection with the housing 10 and the bracket 31 through the two hanging rings. In this embodiment, the bracket 31 and the pressing wheel 30 are rotatably connected by a pin; the bracket 31 is rotatably connected with the housing 10 by a bearing or a pin. In the embodiment, a plurality of chain pressing components 3 are alternately arranged at the feeding end of the shell 10 along the discharging end, and the number of the chain pressing components 3 is determined according to the actual situation.

This embodiment is under the pretightning force effect of extension spring 32, and pinch roller 30 effectively compresses tightly chain 11, makes chain 11 hug closely the transport of casing 10 bottom, scrapes the clean with casing 10 bottom sizing material, makes scraper conveyor subassembly 1 float chain phenomenon can not appear, effectively guarantees material transport capacity and efficiency, can be applicable to the quick transport of viscidity material, and application range is wide, breaks away from current scraper conveyor and the float chain phenomenon appears, and makes transport capacity reduce, and the load increase arouses the broken chain accident. This embodiment adopts extension spring 32 to improve the pretightning force, if there is hard thing to get into in the casing 10, the chain 11 can jack-up pinch roller 30, can not damage scraper blade conveying component, safe and reliable.

Further preferably, as shown in fig. 2 and 3, the feeding assembly 2 further comprises a loose material decompression assembly 24; the loosening and pressure reducing assembly 24 comprises a pressure reducing shaft 240 rotatably mounted on the feed hopper 20 and a plurality of stirring rods 241 arranged along the length direction of the pressure reducing shaft 240; the decompression shaft 240 is connected with the screw conveyor assembly 21 through a transmission assembly 7. In this embodiment, the decompression shaft 240 is rotatably connected to the hopper 20 through a bearing. The driving unit 7 in this embodiment has a sprocket-chain structure including a driving sprocket mounted on the auger assembly 21, i.e., a driving sprocket mounted on the auger shaft 210, a driven sprocket mounted on the decompression shaft 240, and a driving chain connecting the driving sprocket and the driven sprocket.

In this embodiment, play loose effect through pine material decompression subassembly 24 to the interior material of feeder hopper 20, prevent that the material from hardening phenomenons such as arching, give auger delivery of auger delivery subassembly 21 and reduce load, improve auger delivery subassembly 21's auger delivery efficiency and life. When this embodiment scraper conveyor component 1 transmits power to spiral conveyor component 21, spiral conveyor component 21 transmits power to pine material decompression subassembly 24, realizes scraper conveyor component 1, spiral conveyor component 21 and pine material decompression subassembly 24 power source sharing, energy-concerving and environment-protective and compact structure.

Further preferably, as shown in fig. 3 and 8, the feeding assembly 20 further includes a detection assembly 6 for detecting whether the decompression shaft 240 normally rotates. In this embodiment, the detection module 6 is used to detect whether the decompression shaft 240 normally rotates in real time, so as to check whether the decompression releasing module 24 fails, and then check whether the screw conveying module 21 and the scraper conveying module 1 fail, etc., thereby realizing automatic detection and removing partial failures and improving failure removal efficiency.

In the present embodiment, as shown in fig. 8, the sensing unit 6 includes a perforated turntable 60 connected to an end of the decompression shaft 240 and a first photosensor 61 connected to the hopper 20, and the first photosensor 61 corresponds to a hole of the perforated turntable 60. The decompression shaft 240 rotates to drive the porous rotary table 60 to rotate, and the first photoelectric sensor 61 corresponds to the holes on the porous rotary table 60, so that whether the decompression shaft 240 normally rotates or not is effectively monitored. A first photosensor 61 is mounted to the feed hopper 20 by a first mounting block 62. In the present embodiment, a bearing cap 242 connected to the hopper 20 for supporting the decompression shaft 240 is provided at an end of the decompression shaft 240.

The present embodiment further includes a programmable logic controller (not shown) connected to the inspection assembly 6 and the squeegee transport assembly 1. Specifically, the programmable logic controller is connected to the first photosensor 61 and the drive section. The first photoelectric sensor 61 feeds back a detection signal to the programmable logic controller, when the programmable logic controller detects that the scraper conveying assembly 1 is in a starting state and the pressure reducing shaft 240 does not feed back a rotation signal, the programmable logic controller judges the transmission fault of the scraper conveying assembly 1, the self-fault of the scraper conveying assembly 1 is firstly eliminated, namely the driving motor 14 rotates reversely and then rotates forwards repeatedly, the caking damage, large fiber lumps and the like are probably scattered, the fault is eliminated, and the automatic detection and the automatic adjustment for eliminating partial faults are realized; if the fault is not released, a fault signal is sent out, the programmable logic controller stops the starting state of the scraper conveying assembly 1, and the machine is stopped to manually release the fault. In this embodiment, the driving unit includes a rotation speed sensor for detecting an output rotation speed of the driving unit, and the programmable logic controller is connected to the rotation speed sensor, and determines an operating state of the driving unit according to a rotation speed signal fed back by the rotation speed sensor.

Further to this embodiment, as shown in fig. 2, the feeding assembly 2 further comprises a vibration motor 23 connected to the feeding hopper 20. When 20 inclined planes of this embodiment feeder hopper are long-pending materials, start vibrating motor 23, will long-pending material shake down and fall into screw conveyor assembly 21, effectively prevent long-pending material, improve material conveying efficiency.

Further to this embodiment, as shown in fig. 2, 6 and 7, the scraper conveying equipment further includes a discharging assembly 4 connected to the discharging end of the scraper conveying assembly 1, wherein the discharging assembly includes a discharging pipe 40, a valve 41, a balancing weight 42 and a second photoelectric sensor 45; the valve 41 is connected to the discharge pipe 40 in a rotatable manner and is used to close/open the discharge pipe 40; the counterweight 42 is connected to the valve 41, and is used for closing the discharge pipe 40 by the valve 41; the second photoelectric sensor 45 is connected to the discharge pipe 40, and is configured to detect a position of the weight block 42, so as to determine whether the valve 41 is open or closed. In the present embodiment, the valve 41 is connected to the weight 42 via a rotary shaft 44. The tapping pipe 40 is connected to the tapping end of the housing 10. The second photosensor 45 is attached to the tapping pipe 40 via the second attachment seat 43.

In this embodiment, the discharging component 4 is equivalent to a gravity valve, and when no material passes through the discharging pipe 40, the weight of the counterweight 42 makes the valve 41 in a closed state; when the discharging pipe 40 discharges, the valve 41 can be opened by the material due to the speed and weight of the material, the rotating shaft 44 drives the counterweight block 42 to leave the original position, and the second photoelectric sensor 43 cannot detect the counterweight block 42. This embodiment detects the position of balancing weight 42 through second photoelectric sensor 45, still is used for judging whether long-pending material appears in discharging pipe 40 or blocks up, has accelerated troubleshooting time and efficiency greatly.

The present embodiment further includes a programmable logic controller connected to the second photoelectric sensor 45 and the blade conveyor assembly 1. Specifically, the programmable logic controller is connected to the drive motor 14. The second photosensor 45 feeds back the detection signal to the programmable logic controller. When the scraper conveying assembly 1 is not started, and the second photoelectric sensor 45 detects that the valve 41 is in a closed state, the discharge pipe 40 can be judged to be normal, and the programmable logic controller can start the scraper conveying assembly 1 to convey materials. On the contrary, when the scraper conveying assembly 1 is not started and the second photoelectric sensor 45 detects that the valve 41 is in an open state, the discharge pipe 40 can be judged to be in a material accumulation or blocking state, at the moment, the scraper conveying assembly 1 is strictly forbidden to be started, and the fault is firstly eliminated. In the present embodiment, the programmable logic controller and the programmable logic controller connected to the first photosensor 61 are the same programmable logic controller. In the present embodiment, the PLC DVP 14SS211R is used as the model of the programmable logic controller.

In this embodiment, a power supply connected to the driving motor 14, the vibration motor 23, and the like is also included, which is conventional in the art and therefore not described in detail.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The scraper conveying equipment is characterized by comprising a feeding assembly and a scraper conveying assembly connected with the feeding assembly; the feeding assembly comprises a feed hopper and a spiral conveying assembly arranged in the feed hopper; the screw conveyor assembly conveys material toward the feed end of the flight conveyor assembly.

2. The flight delivery apparatus of claim 1, wherein the flight delivery assembly includes a housing, two sprockets mounted to the feed end and the discharge end of the housing, respectively, via a shaft, a chain connecting the two sprockets, a plurality of flights arranged along the chain, and a drive section connected to the shaft; and the rotating shaft positioned at the feeding end of the shell is connected with the spiral conveying assembly.

3. The flight conveyor apparatus of claim 2, wherein the auger assembly includes an auger shaft rotatably mounted to the feed hopper and an auger blade on the auger shaft; the spiral conveying shaft is connected with the rotating shaft at the feeding end of the shell.

4. The scraper conveying equipment as claimed in claim 2, further comprising a chain pressing assembly, wherein the chain pressing assembly comprises a bracket, a tension spring and a pinch roller, one end of the bracket is rotatably connected with the casing, and the other end of the bracket is rotatably connected with the pinch roller; two ends of the tension spring are respectively connected with the shell and one end of the bracket; the pinch roller compresses tightly the chain.

5. The flight conveyor apparatus of claim 1, wherein the infeed assembly further includes a vibratory motor coupled to the infeed hopper.

6. The flight delivery apparatus of any one of claims 2-5, wherein the infeed assembly further includes a bulk relief assembly; the material loosening and pressure reducing assembly comprises a pressure reducing shaft rotatably arranged on the feed hopper and a plurality of stirring rods arranged along the length direction of the pressure reducing shaft; the decompression shaft is connected with the spiral conveying assembly through a transmission assembly.

7. The flight conveyor apparatus of claim 6, wherein the feed assembly further includes a detection assembly for detecting whether the decompression shaft is rotating properly.

8. The flight conveyor apparatus of claim 7, further comprising a programmable logic controller coupled to the sensing assembly and the flight conveyor assembly.

9. The scraper conveyor apparatus of claim 1, further comprising a discharge assembly connected to a discharge end of the scraper conveyor assembly, the discharge assembly including a discharge pipe, a valve, a weight, and a second photosensor; the valve is rotatably connected with the discharge pipe and is used for closing/opening the discharge pipe; the balancing weight is connected with the valve and used for enabling the valve to close the discharge pipe; the second photoelectric sensor is connected with the discharge pipe and used for detecting the position of the balancing weight so as to judge whether the valve is opened or closed.

10. The flight conveyor apparatus of claim 9, further comprising a programmable logic controller coupled to the second photosensor and the flight conveyor assembly.

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