CN109399236B - Gravity type automatic loading weighing apparatus automatic check out system - Google Patents
Gravity type automatic loading weighing apparatus automatic check out system Download PDFInfo
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- CN109399236B CN109399236B CN201811214939.2A CN201811214939A CN109399236B CN 109399236 B CN109399236 B CN 109399236B CN 201811214939 A CN201811214939 A CN 201811214939A CN 109399236 B CN109399236 B CN 109399236B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/008—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations for bulk material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/005—Control arrangements
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Abstract
The invention discloses an automatic detection system of a gravity type automatic charging weighing apparatus.A feeding system supplies powder or granular materials to the gravity type automatic charging weighing apparatus to be detected, the gravity type automatic charging weighing apparatus to be detected carries out real-time weighing, and after the weighing is finished, the materials fall into a container from a blanking pipe and are conveyed to a detection station through a conveying line; weighing the weight of the materials in the container by the detection system, peeling, and completing the re-detection of the weighing; after weighing is completed, the conveying line is started to convey the container to the unloading station; after the discharging system detects the container, the clamping mechanism clamps and fixes the container, the lifting platform ascends, and the turnover mechanism overturns to dump the materials in the container to a discharging station; after the unloading is finished, the unloading system is reset; the material returning system conveys the material back to a first bin of the material feeding system to complete automatic recovery of the material and automatic material supplementing of the first bin; the detection system can realize the automatic detection of the dynamic metering performance of the gravity type automatic loading weighing machine.
Description
Technical Field
The invention belongs to the field of detection of dynamic metering performance of a gravity type loading weighing apparatus, and particularly relates to an automatic detection system of a gravity type automatic loading weighing apparatus.
Background
The gravity type automatic loading weighing apparatus is a typical automatic weighing apparatus, and is widely applied to industrial and agricultural automatic production quantitative packaging, and the whole weighing process is automatically completed under the control of a computer. The weighing speed is high; the weighing precision is high, labor-saving, simple to operate and convenient to maintain. The gravity type automatic charging weighing apparatus is contained in a measuring apparatus catalog (type approval part) managed by the law of the people's republic of China, at present, weighing apparatus calibrating devices established by a plurality of domestic metering technical mechanisms have the capability of carrying out conventional static and dynamic calibration on the gravity type automatic charging weighing apparatus, but the technical requirements of a gravity type automatic charging weighing apparatus type evaluation test on detection items, material loading, automatic material returning, weighing apparatus control and the like are all higher than the technical requirements of the conventional calibration, and only 1-2 metering technical mechanisms capable of carrying out type evaluation on the gravity type automatic charging weighing apparatus in China are available. However, in order to meet market competition and customer requirements, manufacturing enterprises of gravity type automatic charging weighing machines in China continuously release various new products of gravity type automatic charging weighing machines, and the requirements for type evaluation and detection of gravity type automatic charging weighing machines are great and urgent.
When a mechanism in the prior art carries out a dynamic material test in type evaluation detection on a gravity type automatic loading weighing apparatus, the gravity type automatic loading weighing apparatus is used for weighing firstly; after the completion of weighing, empty the material manual work to the container in, the manual transport of rethread is examined on the metering equipment, and transport, dismouting package and feed back all rely on the manual work to accomplish, waste time and energy, and detection efficiency is low and there is personnel's potential safety hazard, the urgent need for a full-automatic gravity type automatic loading weighing apparatus dynamic test device.
Disclosure of Invention
The invention aims to provide an automatic detection system of a gravity type automatic loading weighing machine, which is used for realizing the automatic detection of the dynamic metering performance of the gravity type automatic loading weighing machine.
The technical solution for realizing the purpose of the invention is as follows:
an automatic detection system of a gravity type automatic loading weighing apparatus comprises a feeding system, a conveying system, a detection system, a discharging system and a material returning system; the feeding system comprises a first fixing frame, a first fixing platform, a first storage bin, an electric flat gate, a second fixing platform and a discharging pipe; the first fixing platform and the second fixing platform are respectively fixed on the upper layer and the lower layer of the first fixing frame; the first storage bin is arranged on the first fixed platform; the bottom of the first storage bin is provided with an electric flat gate for controlling the opening of the first storage bin; the gravity type charging weigher is fixed on the second fixed platform; the discharging pipe is arranged at the lower end of the second fixed platform to receive falling materials measured by the gravity type charging weigher and fall into the container; the conveying system adopts a roller automatic conveying line, is arranged below the blanking pipe and conveys the containers to a detection station;
the detection system comprises a first detection unit, a weighing device, a lifting mechanism and a supporting platform; the weighing device, the lifting mechanism and the supporting platform are all positioned at the lower part of the conveying line of the detection station; the lifting mechanism is positioned at the upper end of the weighing device; the supporting platform is positioned at the upper end of the lifting mechanism; the upper end of the supporting platform is provided with a plurality of supporting plates, and the length directions of the supporting plates are parallel to the axial direction of the rollers and are positioned in gaps among the rollers; the first detection unit is arranged on the conveying line; the container is conveyed to the upper end of the weighing device through the conveying line, after the first detection unit detects the container, the conveying line stops, the lifting mechanism lifts the supporting platform, the supporting plate lifts the container from the conveying line, after the weighing device measures the weight of the container, the lifting mechanism descends, the container falls onto the conveying line, and the conveying line starts to convey the container to the unloading station;
the discharging system comprises a second detection unit, a lifting platform, a second fixing frame, a clamping mechanism and a turnover mechanism; the lifting table is positioned at the lower part of the conveying line of the unloading station; second fixing frames are symmetrically fixed on two sides of the upper end of the lifting platform; the turnover mechanism is fixed with the second fixing frame and is connected with the clamping mechanism; the second detection unit is arranged on the conveying line; the second detection unit detects that the container is conveyed to the unloading station, the clamping mechanism clamps and fixes the container, the lifting platform rises, and the turnover mechanism overturns to dump the materials in the container to the unloading station; after the unloading is finished, the unloading system is reset;
the feed back system comprises a second storage bin and a bucket elevator; the second bin is arranged at the tail end of the conveying line and used for receiving the discharged materials; a lower feed inlet of the bucket elevator is connected with the bottom of the second storage bin; a discharge port at the upper part of the bucket elevator is connected with the top of the first storage bin; the materials are conveyed to a first storage bin through a bucket elevator.
Compared with the prior art, the invention has the following remarkable advantages:
(1) the automatic detection system can realize the automatic detection of the solid material metering of the gravity type automatic charging weighing machine.
(2) The automatic detection system is provided with the conveying system, the detection system, the discharging system and the material returning system, so that the automatic dumping, the automatic recovery and the material supplementing of materials can be realized while the detection is realized, the detection efficiency is obviously improved, and the manpower and material resources are saved.
(3) According to the automatic detection system, the lifting sleeve is further arranged at the bottom of the first storage bin, so that the automatic detection system is suitable for gravity type automatic loading weighing machines with different heights, and is high in universality.
(4) According to the automatic detection system, the manipulator and the reverse conveying line are further arranged at the tail end of the conveying line, the container is conveyed to the front end of the original conveying line, multiple tests and detections can be completed, and the detection result is accurate and reliable.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
Fig. 1 is an expanded view of the overall structure of the automatic detection system of the present invention.
Fig. 2 is a schematic view of the overall structure of the feeding system of the present invention.
Fig. 3 is a schematic structural diagram of the detection system of the present invention in a raised state.
FIG. 4 is a schematic top view of the inspection system of the present invention.
FIG. 5 is a schematic view of a gas generator according to the present invention.
Fig. 6 is a schematic structural diagram of the discharging system of the invention.
Fig. 7 is a schematic top view of the discharge system of the present invention.
Fig. 8 is an enlarged view of the connection of the lifting sleeve of the present invention.
Fig. 9 is a schematic diagram of material circulation.
Detailed Description
For the purpose of illustrating the technical solutions and technical objects of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 9, an automatic detection system of a gravity type automatic loading weigher of the present invention includes a feeding system, a conveying system, a detection system, a discharging system, and a material returning system; the feeding system comprises a first fixing frame 1, a first fixing platform 2, a first storage bin 3, an electric flat gate 4, a second fixing platform 5 and a blanking pipe 6; the first fixed platform 2 and the second fixed platform 5 are respectively fixed on the upper layer and the lower layer of the first fixed frame 1; the first storage bin 3 is arranged on the first fixed platform 2 and used for storing weighed materials; the bottom of the first storage bin 3 is provided with an electric flat gate 4 for controlling the opening of the first storage bin 3; the space between the first bin 3 and the second fixing platform 5 is used as the mounting space of the gravity type charging weigher, and when the gravity type charging weigher is used, the gravity type charging weigher is fixed on the second fixing platform 5; the discharging pipe 6 is arranged at the lower end of the second fixed platform 5 and used for receiving falling materials measured by the gravity type charging weigher and falling into the container 12; the conveying system adopts a roller automatic conveying line 7, is arranged below the blanking pipe 6 and conveys the container 12 to a detection station;
the detection system comprises a first detection unit 8, a weighing device 9, a lifting mechanism and a supporting platform 10; the weighing device 9, the lifting mechanism and the supporting platform 10 are all positioned at the lower part of the conveying line 7 of the detection station; the lifting mechanism is positioned at the upper end of the weighing device 9; the supporting platform 10 is positioned at the upper end of the lifting mechanism; the upper end of the supporting platform 10 is provided with a plurality of supporting plates 101, and the length directions of the supporting plates 101 are parallel to the axial direction of the rollers and are positioned in gaps among the rollers; the first detection unit 8 is arranged on the conveying line 7; the container 12 is conveyed to the upper end of the weighing device 9 through the conveying line 7, after the first detection unit 8 detects the container 1, the conveying line 7 stops, the lifting mechanism lifts the supporting platform 10, the supporting plate 101 lifts the container 12 from the conveying line 7, after the weighing device 9 measures the weight of the container 12, the lifting mechanism descends, the container 12 falls onto the conveying line 7, and the conveying line 7 is started to convey the container 12 to the unloading station.
The discharging system comprises a second detection unit 15, a lifting platform 13, a second fixing frame 14, a clamping mechanism and a turnover mechanism; the lifting platform 13 is positioned at the lower part of the conveying line 7 of the unloading station; two sides of the upper end of the lifting platform 13 are symmetrically fixed with second fixing frames 14; the turnover mechanism is fixed with the second fixing frame 14 and is connected with the clamping mechanism; the clamping mechanism is used for clamping and fixing two ends of the container 12; the second detection unit 15 is arranged on the conveying line 7; the second detection unit 15 detects that the container 12 is conveyed to the unloading station, the clamping mechanism clamps and fixes the container 12, the lifting platform 13 ascends, and the turnover mechanism overturns to dump the materials in the container 12 to the unloading station; and after the unloading is finished, resetting the unloading system.
The feed back system comprises a second storage bin 16, a bucket elevator, a manipulator and a reverse conveying line; the second storage bin 16 is arranged at the tail end of the conveying line 7 and used for receiving the discharged materials; a lower feed inlet of the bucket elevator is connected with the bottom of the second storage bin 16; a discharge port at the upper part of the bucket elevator is connected with the top of the first storage bin 3; the material is conveyed to the first silo 3 by a bucket elevator. Because gravity type automatic charging weighing apparatus itself is higher, therefore the height of feeding system's first feed bin 3 will be far higher than gravity type automatic charging weighing apparatus's height, consequently adopt artifical and fork truck to realize the backward flow of material comparatively difficult, consequently can realize the automatic backward flow of material through the feed back system, reduce feed back time and work, improve the efficiency that detects many times. Meanwhile, materials are added into the second storage hopper 16, so that automatic feeding and material supplementing of the first storage hopper 3 can be realized. Meanwhile, the backflow efficiency of the materials can be obviously improved through the bucket elevator.
The tail end of the conveying line 7 is provided with a manipulator and a conveying line for reverse conveying; after the unloading system finishes unloading and resetting, the clamping mechanism is loosened, the manipulator grabs the container 12 to a conveying line for reverse conveying, and the conveying line conveys the container 12 to the front end of the original conveying line 7 so as to convey the container 12 to the position below the unloading pipe 6 and finish automatic backflow of the container 12.
As an embodiment, the manipulator is a KUKA or FANUC industrial robot.
Furthermore, a vertical staircase is fixed on the first fixing frame 1 and extends from the bottom of the first fixing frame 1 to the first fixing platform 2, so that manual repair is facilitated.
Furthermore, guard rails are further fixed to the periphery of the upper end of the first fixing platform 2, so that safety of aerial work is guaranteed.
Further, the bottom of the first bin 3 is also provided with a lifting sleeve 20 to adapt to gravity type automatic charging weighing machines with different heights, so that materials can smoothly fall into the bins of the gravity type automatic charging weighing machines; the lifting sleeve 20 is formed by nesting a plurality of round pipes; a sealing ring 32 is arranged between the outer layer circular tube and the inner layer circular tube for sealing; the bottom of the lifting sleeve 20 is provided with a lifting plate 21, and two ends of the lifting plate 21 are provided with traction steel wires 22; the upper end of the traction steel wire 22 is connected with a traction motor 23; the traction motor 23 is fixed at the bottom of the first storage bin 3; the traction motor 23 pulls the traction steel wire 22 to ascend or descend, and the lifting plate 21 drives the lifting sleeve 20 to stretch up and down so as to adapt to gravity type automatic charging weighing apparatus with different heights.
In one embodiment, the first detecting unit 8 is a photoelectric sensor, and a transmitter and a receiver of the photoelectric sensor are respectively fixed on two sides of the conveying line 7 through brackets and located on the front side of the weighing device 9. When the photoelectric sensor detects the container 12, the conveyor line 7 is stopped, the lifting mechanism lifts the support platform 10, and the support plate 101 lifts the container 12 from the conveyor line 7.
In one embodiment, the lifting mechanism includes a plurality of airbags 11 and a gas generating device; the air bag 11 is arranged between the weighing device 9 and the supporting platform 10, and the gas generating device is used for inflating or deflating the air bag 11 to realize the lifting of the lifting mechanism.
Further, referring to fig. 4, the gas generating device includes a gas source 21, a first solenoid valve 22, a pressure reducing valve 23, and a second solenoid valve 24; the air source 21 is connected with a pressure reducing valve 23 through a first electromagnetic valve 22; one path of the reducing valve 23 is connected with the air bag 11 through an air pipe, and the other path of the reducing valve is connected with a second electromagnetic valve 24; when the lifting mechanism is lifted, the first electromagnetic valve 22 is opened, the second electromagnetic valve 24 is closed, and the air inflates the air bag 11 through the pressure reducing valve 23, so that the lifting mechanism is lifted; when the lifting mechanism descends, the first electromagnetic valve 22 is closed, the second electromagnetic valve 24 is opened, the air bag 11 is deflated, and the descending of the lifting mechanism is realized. The pressure in the raised air bag 11 is ensured to be stable through the pressure reducing valve 23, and the weighing of the container 12 is not influenced;
as another embodiment, the lifting mechanism adopts four electric telescopic rods, the four electric telescopic rods are symmetrically arranged at the upper end of the weighing device 9 through a fixing seat, a piston rod of each electric telescopic rod is connected with the supporting platform 10, and the supporting platform 10 is lifted through the lifting of the electric telescopic rods.
Preferably, the weighing equipment adopts a mass comparator, so that the weighing equipment has higher resolution and very good repeatability, and the measurement result is accurate and reliable. A balance or weighbridge may also be used.
Furthermore, the mass comparator 3 is a mass comparator with the maximum weighing capacity of 600kg, the division value of 0.1g and the repeatability of 0.75g, has good universality and can cover the detection requirement of quantitative packaging of 80% gravity type automatic loading weighing machines on the market;
furthermore, an elastic material is further arranged on the supporting plate 41 to realize flexible contact.
Furthermore, the two sides of the upper end of the conveying line 7 are also provided with guide plates 30, and the guide plates 30 are positioned on the front side of the weighing device 3, so that the containers 12 are ensured to enter the upper end of the weighing device 3 in the forward direction, and deflection is avoided.
Further, a plurality of rollers are arranged on the opposite inner sides of the guide plates 7 to realize rolling contact with the container 12.
In one embodiment, the second detecting unit 15 is a photoelectric sensor, and a transmitter and a receiver of the photoelectric sensor are respectively fixed on two sides of the conveying line 7 by a bracket and located in front of the lifting platform 13. When the photoelectric sensor detects the container 12, the conveyance line 7 is stopped, the gripper grips and fixes the container 12, and the lift table 13 is raised.
In another embodiment, the second detecting unit 15 is a stroke switch, the container 12 touches the stroke switch, the conveyor line 7 stops, the gripping mechanism grips and fixes the container 12, and the lift table 13 ascends.
As an embodiment, the clamping mechanism comprises a clamping jaw 25, an electric cylinder 26; the turnover mechanism comprises a turntable 27 and a driving motor 28; the clamping jaw 25 is connected with a piston rod of an electric cylinder 26; the cylinder body of the electric cylinder 26 is connected with the rotary disc 27; the rotating disc 27 is supported on the second fixing frame 14 through a bearing; the driving motor 28 is fixedly connected with the second fixing frame 14 and drives the turntable 27 to rotate; and an encoder is provided on the driving motor 28 to control the rotation angle of the driving motor 28. After the second detection unit 15 detects the container 12, the conveying line 7 stops, the electric cylinder 26 extends out, the container 12 is clamped tightly by the clamping jaw 25, the lifting platform 13 ascends to lift the container 12 from the conveying line 7, the driving motor 28 drives the rotary disc 27 to rotate, the rotary disc finally drives the clamping jaw 25 to rotate, and the rotation angle of the motor of the driving motor 28 is controlled to adjust the overturning angle of the container 12 so as to finish the dumping of the materials in the container 12.
Furthermore, the inner side of the clamping jaw 25 is also provided with an anti-skid rubber pad to increase friction force and stability of clamping.
Further, still be equipped with a plurality of constant head tanks on the container 12, still be equipped with the locating pin on the clamping jaw 25, press from both sides tight in-process, locating pin and constant head tank cooperation increase the stability of centre gripping.
Further, the lateral part of the upper end of the second storage bin 16 is also provided with a dust hood, and dust generated in the process of overturning and dumping is absorbed by an air exhaust device.
Referring to fig. 8, in the automatic detection system for the gravity type automatic charging weighing apparatus of the present invention, first, the gravity type automatic charging weighing apparatus to be detected is fixed on the second fixing platform 5, the bin of the gravity type automatic charging weighing apparatus to be detected is aligned with the blanking port at the lower end of the lifting sleeve 20, and the height of the lifting sleeve 20 is adjusted to adapt to the height of the gravity type automatic charging weighing apparatus to be detected. Starting a detection system, supplying powder or granular materials to a gravity type automatic charging weighing apparatus to be detected through a feeding system, weighing the gravity type automatic charging weighing apparatus to be detected in real time, feeding fast and slow materials by the gravity type automatic charging weighing apparatus, and closing an electric flat gate 4 when the weight of the materials reaches a final set value; the gravity type automatic loading weighing machine to be detected finishes self material weighing and obtains the material weight. After the gravity type automatic loading weighing machine to be detected finishes weighing the materials, the materials fall into the container 12 from the blanking pipe 6 and are conveyed to a detection station through the conveying line 7; the detection system weighs the weight of the material in the container 12, peels the material and completes the re-detection of the weighing; after weighing is completed, the detection system is reset and the conveyor line 7 is started to unload the containers 12. After the discharging system detects the container 12, the clamping mechanism clamps and fixes the container 12, the lifting platform 13 ascends, and the turnover mechanism overturns to dump the materials in the container 12 to a discharging station; and after the unloading is finished, resetting the unloading system. The material returning system conveys the material back to the first bin 3 of the material feeding system, and the automatic recovery of the material and the automatic material supplementing of the first bin 3 are completed. And simultaneously the containers 12 are automatically conveyed below the blanking pipe 6 by a manipulator and a conveying line of reverse conveying. The tests are repeated, and tests of materials with different weights or tests of one weight can be set; the gravity type automatic charging weighing machine to be detected is measured for multiple times, different weighing ranges are set according to the measuring range of the gravity type automatic charging weighing machine to be detected for measurement and check, and the detection result is more accurate.
The automatic detection system can realize the automatic detection of the solid material metering of the gravity type automatic charging weighing machine. Through feeding system, conveying system, detecting system, the system of unloading, feed back system, can realize the automation of material when realizing detecting and empty, automatic recovery and feed supplement, show improvement detection efficiency, the material resources of using manpower sparingly. The automatic detection system can adapt to gravity type automatic loading weighing apparatus with different heights, and has strong universality. The tail end of the conveying line is also provided with a manipulator and a conveying line for reverse conveying, the container is conveyed to the front end of the original conveying line, multiple tests and detections can be completed, and the detection result is accurate and reliable.
Claims (10)
1. An automatic detection system of a gravity type automatic loading weighing apparatus is characterized by comprising a feeding system, a conveying system, a detection system, a discharging system and a material returning system; the feeding system comprises a first fixing frame (1), a first fixing platform (2), a first storage bin (3), an electric flat gate (4), a second fixing platform (5) and a discharging pipe (6); the first fixing platform (2) and the second fixing platform (5) are respectively fixed on the upper layer and the lower layer of the first fixing frame (1); the first storage bin (3) is arranged on the first fixed platform (2); the bottom of the first storage bin (3) is provided with an electric flat gate (4) for controlling the opening of the first storage bin (3); the gravity type charging weigher is fixed on the second fixed platform (5); the discharging pipe (6) is arranged at the lower end of the second fixed platform (5) to receive falling materials measured by the gravity type charging weigher and fall into the container; the conveying system adopts a roller automatic conveying line (7), is arranged below the blanking pipe (6), and conveys the containers to a detection station;
the detection system comprises a first detection unit (8), a weighing device (9), a lifting mechanism and a supporting platform (10); the weighing device (9), the lifting mechanism and the supporting platform (10) are all positioned at the lower part of the conveying line (7) of the detection station; the lifting mechanism is positioned at the upper end of the weighing device (9); the supporting platform (10) is positioned at the upper end of the lifting mechanism; the upper end of the supporting platform (10) is provided with a plurality of supporting plates (101), and the length directions of the supporting plates (101) are parallel to the axial direction of the rollers and are positioned in gaps among the rollers; the first detection unit (8) is arranged on the conveying line (7); the container is conveyed to the upper end of a weighing device (9) through a conveying line (7), after the first detection unit (8) detects the container, the conveying line (7) stops, a lifting mechanism lifts a supporting platform (10), a supporting plate (101) lifts the container from the conveying line (7), after the weighing device (9) measures the weight of the container, the lifting mechanism descends, the container falls onto the conveying line (7), and the conveying line (7) starts to convey the container to an unloading station;
the discharging system comprises a second detection unit (15), a lifting table (13), a second fixing frame (14), a clamping mechanism and a turnover mechanism; the lifting platform (13) is positioned at the lower part of the conveying line (7) of the unloading station; two sides of the upper end of the lifting platform (13) are symmetrically fixed with second fixing frames (14); the turnover mechanism is fixed with a second fixing frame (14) and is connected with the clamping mechanism; the second detection unit (15) is arranged on the conveying line (7); the second detection unit (15) detects that the container is conveyed to the unloading station, the clamping mechanism clamps and fixes the container, the lifting platform (13) ascends, and the turnover mechanism overturns to dump the materials in the container to the unloading station;
the feed back system comprises a second storage bin (16), a bucket elevator, a manipulator and a conveying line for reverse conveying; the second storage bin (16) is arranged at the tail end of the conveying line (7) and used for receiving the discharged materials; a lower feed inlet of the bucket elevator is connected with the bottom of the second storage bin (16); a discharge port at the upper part of the bucket elevator is connected with the top of the first storage bin (3); conveying the materials to a first storage bin (3) through a bucket elevator; the manipulator and the conveying line for reverse conveying are arranged at the tail end of the conveying line (7); after the unloading system finishes unloading and resetting, the clamping mechanism is loosened, and the manipulator grabs the container to the reverse conveying line.
2. The automatic detection system for the gravity type automatic loading weigher according to claim 1, wherein a lifting sleeve (20) is further arranged at the bottom of the first storage bin (3), and the lifting sleeve (20) is formed by nesting a plurality of round pipes; a sealing ring (32) is arranged between the outer layer circular tube and the inner layer circular tube for sealing; the bottom of the lifting sleeve (20) is provided with a lifting plate (21), and both ends of the lifting plate (21) are provided with traction steel wires (22); the upper end of the traction steel wire (22) is connected with a traction motor (23); the traction motor (23) is fixed at the bottom of the first storage bin (3); the traction motor (23) pulls the traction steel wire (22) to ascend or descend, and the lifting plate (21) drives the lifting sleeve (20) to stretch up and down.
3. The automatic gravity type charging weigher detection system according to claim 1, wherein the elevating mechanism includes a plurality of air bags (11), a gas generating device; the air bag (11) is arranged between the weighing device (9) and the supporting platform (10), and the gas generating device is used for inflating or deflating the air bag (11) to realize the lifting of the lifting mechanism.
4. A gravity type automatic charging weigher automatic detection system according to claim 3, characterized in that the gas generating means comprises a gas source, a first solenoid valve, a pressure reducing valve, a second solenoid valve (24); the air source is connected with the pressure reducing valve through a first electromagnetic valve; one path of the reducing valve is connected with the air bag (11) through an air pipe, and the other path of the reducing valve is connected with a second electromagnetic valve (24).
5. The automatic detection system of a gravity type automatic loading weighing apparatus according to claim 1, wherein the lifting mechanism employs four electric telescopic rods, the four electric telescopic rods are symmetrically arranged at the upper end of the weighing device (9) through a fixing seat, piston rods of the electric telescopic rods are connected with the supporting platform (10), and the lifting of the supporting platform (10) is realized through the lifting of the electric telescopic rods.
6. The automatic detection system for the gravity type automatic loading weigher according to claim 1, characterized in that guide plates (30) are further arranged on two sides of the upper end of the conveyor line (7), and the guide plates (30) are positioned on the front side of the weighing device (9).
7. An automatic detection system for a gravity type automatic charging weigher according to claim 6, wherein a plurality of rollers are further provided on opposite inner sides of the guide plate (30).
8. Automatic gravity type loading weigher detection system according to claim 1, characterised in that the weighing means (9) employs a mass comparator.
9. The automatic gravity type charging weigher detection system according to claim 1, wherein the clamping mechanism comprises a clamping jaw (25), an electric cylinder (26); the turnover mechanism comprises a turntable (27) and a driving motor (28); the clamping jaw (25) is connected with a piston rod of an electric cylinder (26); the cylinder body of the electric cylinder (26) is connected with the rotary disc (27); the rotating disc (27) is supported on the second fixing frame (14) through a bearing; the driving motor (28) is fixedly connected with the second fixing frame (14) and drives the turntable (27) to rotate; and the driving motor (28) is provided with an encoder to control the rotation angle of the driving motor (28).
10. The automatic detection system for a gravity-type automatic loading weigher according to claim 1, wherein a dust hood is further provided at an upper end side portion of the second storage bin (16).
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| CN201811214939.2A CN109399236B (en) | 2018-10-18 | 2018-10-18 | Gravity type automatic loading weighing apparatus automatic check out system |
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| CN201811214939.2A CN109399236B (en) | 2018-10-18 | 2018-10-18 | Gravity type automatic loading weighing apparatus automatic check out system |
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| CN114427993B (en) * | 2020-09-16 | 2024-05-03 | 中国石油化工股份有限公司 | Liquid transfer system, fixed dissolution instrument and liquid transfer fixed dissolution method |
| CN113200335B (en) * | 2021-04-24 | 2022-11-11 | 深圳市创仁科技有限公司 | Automatic loading and unloading system for rare earth treatment and control method thereof |
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