CN219278905U

CN219278905U - Automatic loader with movable material opening, weighing and metering functions

Info

Publication number: CN219278905U
Application number: CN202320343812.0U
Authority: CN
Inventors: 李云鹏
Original assignee: Shandong Gurun Engineering Technology Co ltd
Current assignee: Shandong Gurun Engineering Technology Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-06-30
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a movable material opening type weighing metering automatic loading machine, wherein a rack is provided with a batching scale and a bidirectional material distributing device capable of moving forwards and backwards, the upper part of the front end of the batching scale is provided with a material inlet, the upper part is connected with a material outlet of a material bin and used for receiving materials of the material bin, and the lower part of the rear end of the batching scale is provided with a material outlet; the bidirectional distributing device is positioned at the lower part of the discharging opening and is used for receiving materials sent by the batching scale; two ends of the bidirectional distributing device are provided with discharge hoppers, and a material transporting vehicle can pass through the space at the lower part of the discharge hoppers and can also be parked at a loading position below the discharge hoppers for loading. Because the bidirectional distributing device can move back and forth, and the two ends of the bidirectional distributing device are respectively provided with a discharging hopper, when the materials at the front part in the carriage of the material transporting vehicle are loaded to the designated height, the control system controls the bidirectional distributing device to move backwards to the next loading position until the carriage is filled and the set loading weight is reached. The automobile does not need to be moved in the whole loading process, the automobile does not need to be manually operated, and the automation degree and the operation efficiency are high.

Description

Automatic loader with movable material opening, weighing and metering functions

Technical Field

The utility model relates to the technical field of loading equipment for bulk materials, in particular to an automatic loading machine with a weighing function.

Background

The general flow of bulk material discharged from a bin into the carriage of a material mover is: the truck to be loaded firstly measures the dead weight once by the truck scale in the field, then loads the truck under the storage bin, then returns to the truck scale to measure the total weight after once loading, and the truck is fed and unloaded according to the underload and overload conditions. The loading mode needs to carry out loading and metering repeatedly, so that the error is large, the time is long, and cheating behaviors are easy to occur for drivers and staff. In the loading process, in order to ensure uniformity of material loading, a special unloading commander is required to be arranged on site, a commander guides a material mover driver to move the car forwards or backwards by taking a material bin unloading opening as a center for unloading for multiple times, and the commander controls the opening and closing of a material bin unloading gate according to the current vehicle position and the actual loading condition in a carriage, and the actions are repeated until the carriage of the material mover is filled. Even so, if the two are not well matched, the situation that the materials overflow or the materials are less loaded is likely to occur, the whole operation is more complicated, and the requirements on a truck driver and a commander are higher.

The traditional loading mode has a series of problems and disadvantages:

1. the labor is consumed, and the unloading process at least needs to be completed by an on-site unloading commander and a material mover driver, so that the requirements on experience and technical level of the staff are high, the working environment of workers is poor, the labor intensity is high, and the safety is poor;

2. the material mover needs to move back and forth for many times to be filled during loading, the operation flow is complex and troublesome, the flow time is long, and the working efficiency is low; the driving habits of drivers of all the material transporting vehicles are different, so that the front and back moving vehicles have large difference, the loading capacity is different from person to person, the difference is large, and a standardized flow cannot be formed;

3. the material during loading can not be metered and controlled, in order to realize quantitative loading, the loading and unloading and weighing are needed for many times, the work flow is repeated, the management is very complex, the problems of vehicle escape, ticket misplacement and the like are easy to occur, the occupied area is large, the manpower and material resources are wasted, the loading cost is high, and the loading efficiency is low.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a movable material opening type weighing and metering automatic car loader, which solves the problems in the prior art.

The technical scheme adopted by the utility model for achieving the purpose is as follows:

the utility model provides a remove automatic carloader of material mouth formula weighing measurement, includes frame, its characterized in that: the frame is provided with a batching scale and a bidirectional distributing device capable of moving forwards and backwards, the upper part of the front end of the batching scale is provided with a feed inlet, the feeding device is connected with a discharge hole of a storage bin and used for receiving materials of the storage bin, and the lower part of the rear end of the batching scale is provided with a feed opening; the bidirectional distributing device is positioned at the lower part of the discharging opening and is used for receiving materials sent by the batching scale; two ends of the bidirectional distributing device are provided with discharging hoppers, and the space at the lower part of the discharging hoppers can be filled by a material conveying vehicle which can be parked at a loading position below the discharging hoppers.

Through adopting above-mentioned technical scheme, two-way distributing device can reciprocate, and two ends of two-way distributing device all are equipped with the discharge hopper, and when the material of the front portion in the dumper carriage was adorned to appointed height, control system control two-way distributing device moved backward to next loading stall, until with the carriage full of and reach the setting loading weight. The automatic weighing and weighing device has the advantages that the weighing scale is arranged on the rack, the weighing of the loaded materials is accurately measured through the weighing scale, the loaded materials can be directly loaded to a delivery vehicle, accurate measurement is realized without weighing the delivery vehicle, automatic continuous loading and quantitative loading of goods are realized, the loading speed is high, the period is short, and underload, overload and other phenomena can be effectively avoided.

In the automatic loading machine with the movable material port type weighing metering function, the bidirectional material distribution device comprises a scraper conveyor, a travelling wheel is arranged at the lower part of a bottom frame of the scraper conveyor, and the travelling wheel can move along a horizontal guide rail arranged on the frame; the discharging hopper is connected to the underframe and is positioned right below the conveying roller at the end part of the scraper conveyor. The continuous loading without stopping can be realized, the loading precision is improved, and the material overflow is avoided.

In the automatic loading machine with the movable material port type weighing and metering function, the lower part of the underframe of the scraper conveyor is rotationally connected with the synchronous shaft, the two ends of the synchronous shaft are provided with the travelling wheels, and the outer end part of the synchronous shaft is connected with the output shaft of the driving motor.

In the movable material opening type weighing and metering automatic loader, a material discharging opening is arranged at the lower part of the material discharging hopper, and an electric telescopic chute is connected to the material discharging opening.

Through adopting above-mentioned technical scheme, connect the electric flexible swift current section of thick bamboo on the drain hole, when waiting for the loading, the electric flexible swift current section of thick bamboo is in shrinkage state, during the loading operation, the electric flexible swift current section of thick bamboo that corresponds the drain hole is by shrinkage state adjustment to the state of transferring, the lower extreme of electric flexible swift current section of thick bamboo stretches into the carriage bottom, set up carriage bottom ground clearance in PLC control system, and carriage top ground clearance, control system can set for at every turn according to two difference in height, the bulk material begins the loading according to the real-time material level signal that material level sensor provided, control system is automatic upwards to improve certain distance according to the material level signal that material level sensor provided, continue the loading, until material level sensor detects that the material level reaches the carriage top, so, because the material drop point is lower, blanking speed is less, can control the dust pollution that the loading produced effectively.

Further, an electric gate valve is arranged between the discharging hole and the electric telescopic chute.

Through adopting above-mentioned technical scheme, be equipped with electronic gate valve between drain hole and the electronic flexible swift current section of thick bamboo, the discharge hopper blowing of messenger's front end or rear end that can be selective to adapt to different loading positions.

In the movable material opening type weighing and metering automatic loading machine, the lower end of the frame is provided with the travelling wheels.

Through adopting above-mentioned technical scheme, the lower extreme of frame is equipped with the walking wheel, can use tools such as trailer to pull the complete machine to required position, conveniently carries out the transition and uses.

The beneficial effects are that:

1. the bidirectional distributing device can move back and forth, the two ends of the bidirectional distributing device are respectively provided with a discharging hopper, and when the materials at the front part in the carriage of the material transporting vehicle are loaded to the designated height, the control system controls the bidirectional distributing device to move back to the next loading position until the carriage is filled and the set loading weight is reached. The automobile does not need to be moved in the whole loading process, the automobile does not need to be manually operated, the automation degree is high, the manpower is saved, and the operation efficiency is high.

2. The weighing device has the advantages that the weighing scale is arranged on the frame, the weighing of the loading materials is accurately measured through the weighing scale, the loading of the delivery vehicles can be directly carried out, the accurate measurement is realized without weighing the delivery vehicles, the automatic and quantitative loading of cargoes is realized, the loading speed is high, the period is short, and the phenomena of underload, overload and the like can be effectively avoided.

3. The electric telescopic chute is connected to the discharging port, and is in a contracted state during standby, and during loading operation, the electric telescopic chute corresponding to the discharging port is adjusted to a downward state from the contracted state, so that the material falling point is lower, the discharging speed is lower, and dust pollution generated during loading can be effectively controlled.

Drawings

Fig. 1 is a schematic front view of the present utility model.

Fig. 2 is a schematic left-hand view of the present utility model.

In the figure: the automatic feeding and discharging device comprises a right front upright post, a vehicle positioning sensor, a longitudinal beam, a guide rail, a control cabinet 5, a feed inlet 6, a bracket 7, a batching scale 8, a discharge hopper 9, a discharge inlet 10, a scraper conveyor 11, an electric gate valve 12, a material level sensor 13, an electric telescopic chute 14, a right rear upright post 15, a travelling wheel 16, a left front upright post 17, a front cantilever beam 18, a transverse beam 19, a driving motor 20, a synchronous shaft 21, travelling wheels 22, wireless transmission equipment 23 and a card reader 24.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be further described below by way of non-limiting examples with reference to the accompanying drawings.

Referring to fig. 1 and 2, an automatic loading machine with movable material opening type weighing and metering comprises a frame, wherein a batching scale 8 and a bidirectional material distributing device capable of moving back and forth are arranged on the frame, in the embodiment, the frame is a square frame formed by 4 columns including a left front column 17, a right front column 1, a left rear column and a right rear column 15, the distance between the left front column 17 and the right front column 1 and the distance between the left rear column and the right rear column 15 can accommodate the passage of a largest vehicle of a user, and the top ends of the left front column 17 and the right front column 1 and the top ends of the left rear column and the right rear column 15 are connected through a cross beam 19; front cantilever beams 18 are correspondingly arranged on the left front upright post 17 and the right front upright post 1 and positioned at the lower part of the cross beam 19 in opposite directions, and rear cantilever beams are correspondingly arranged on the left rear upright post and the right rear upright post 15 and positioned at the lower part of the cross beam 19 in opposite directions; a longitudinal beam 3 is respectively connected between the upper parts of the front cantilever beam 18 and the rear cantilever beam which are positioned at the left side and between the upper parts of the front cantilever beam 18 and the rear cantilever beam which are positioned at the right side, a horizontal guide rail 4 is arranged on the upper plane of the longitudinal beam 3, in the embodiment, the horizontal guide rail 4 adopts angle steel, and the section opening of the angle steel is downwards buckled on the longitudinal beam 3.

The longitudinal beam 3 is provided with a bracket 7, the upper part of the bracket 7 is provided with a batching scale 8, in the embodiment, the batching scale 8 adopts a YB-JGC belt quantitative feeder produced by Jiangsu Yubang industrial technology Co., ltd, the upper part of the front end of the batching scale 8 is provided with a feed inlet 6 which is connected with a discharge hole of a feed bin for receiving the material of the feed bin, the discharge hole of the feed bin is provided with a bin lower gate, and the lower part of the rear end of the batching scale 8 is provided with a feed opening 10;

the bidirectional material distribution device is positioned at the lower part of the material discharging opening 10 and comprises a scraper conveyor 11, the lower part of a bottom frame of the scraper conveyor 11 is rotationally connected with a synchronous shaft 21 through a bearing and a bearing seat, two ends of the synchronous shaft 21 are provided with travelling wheels 22, the outer end part of the synchronous shaft 21 is connected with an output shaft of a driving motor 20, in the embodiment, the driving motor 20 adopts an overhead travelling crane end beam to operate a three-in-one motor, the shape of the outer side surface of the travelling wheels 22 is matched with the section shape of angle steel of a horizontal guide rail 4, and the travelling wheels can move along the horizontal guide rail 4; the scraper conveyor 11 is used for receiving the materials sent by the batching scale 8. The two ends of the scraper conveyor 11 are provided with a discharge hopper 9, the discharge hopper 9 is connected to the underframe, the discharge hopper 9 is positioned under a conveying roller at the end part of the scraper conveyor 11, the lower part of the discharge hopper 9 is provided with a discharge port, the discharge port is connected with an electric gate valve 12, the lower part of the electric gate valve 12 is connected with an electric telescopic chute 14, the electric telescopic chute 14 is in a contracted state during standby, the space at the lower part of the discharge hopper 9 can pass through a material conveying vehicle, and the material conveying vehicle can be parked at a loading position below the discharge hopper 9 for loading; when the loading operation is carried out, the electric telescopic chute 14 corresponding to the discharging port is adjusted to be in a downward-falling state from a contracted state, and when the electric telescopic chute 14 is put down, the electric telescopic chute 14 stretches into a carriage, so that material overflow and dust pollution during loading can be avoided.

The lower ends of the left front upright post 17, the right front upright post 1, the left rear upright post and the right rear upright post 15 are respectively provided with a traveling wheel 16, and tools such as a trailer can be used for pulling the whole machine to a required position, so that the transfer is convenient.

The automatic loading machine of the embodiment further comprises a control system, wherein the control system further comprises a vehicle identification subsystem and an automatic loading subsystem.

Specifically, the vehicle identification subsystem includes vehicle identification software, an information data platform, a wireless transmission device CPE23, an LED display screen, a card reader 24, a radio frequency card and an exchange, wherein the information data platform stores transfer vehicle information and material information, the card reader 24 reads the radio frequency card information of the current transfer vehicle, the vehicle identification software acquires the vehicle information and the material information stored in the information data platform based on the wireless transmission device CPE23, and matches the radio frequency card information with the vehicle information stored in the information data platform to determine the vehicle information (including length, width, height, carriage bottom height and the like) of the current transfer vehicle; the vehicle guiding information can be displayed on the LED display screen;

the information data platform is arranged in the control cabinet 5, the card reader 24 and the wireless transmission equipment CPE23 are arranged on the frame and close to the loading space, and the switch adopts an industrial private switch and is arranged in the control cabinet 5;

the automatic loading subsystem comprises a PLC controller, a guiding signal lamp, a vehicle positioning sensor 2 and a carriage material level sensor 13;

the wireless network transmission equipment CPE and the information data platform exchange real-time data through a wireless network, and the vehicle identification software transmits vehicle information acquired from the information data platform to the PLC based on the wireless network transmission equipment CPE, and the PLC acquires parking space detection signals, material level detection signals and material weight metering signals of the batching scale 8 in real time; the PLC is internally provided with an intelligent control program, and can automatically judge the current vehicle loading state according to the vehicle information, the position of the bidirectional material distribution device, the material level information in the vehicle and the material weight metering information of the material distribution scale 8; according to the current loading state of the vehicle, the PLC controls the bidirectional material distribution device to move back and forth, transmits vehicle guiding information to the LED display screen, controls the guiding signal lamp, and a driver of the transporting vehicle can complete corresponding actions according to the guiding information of the LED display screen and the prompt of the guiding signal lamp; the PLC controls the opening and closing of the discharge hole of the storage bin, the electric telescopic chute 14, the batching scale 8 and the scraper conveyor 11 according to the position of the bidirectional distributing device and the material level in the vehicle.

The PLC controller is arranged in the control cabinet 5; the material level sensor 13 is arranged at one side of the discharge hopper 9, in the embodiment, the material level sensor 13 adopts an ultrasonic material ranging radar to detect the material level in the carriage in real time and judge whether the material transporting vehicle enters the lower part of the discharge hopper 9; the vehicle positioning sensor 2 is arranged at the front end of the longitudinal beam 3, and in the embodiment, the vehicle positioning sensor 2 adopts an ultrasonic ranging sensor for measuring the position of the material transporting vehicle entering the region to be loaded below the material discharging hopper 9; the guiding signal lamp and the LED display screen are arranged in front of the frame (not shown in the figure);

the controller in this embodiment adopts a PLC controller, but of course, other types of controllers may be adopted, and the PLC controller is installed in the control cabinet 5; an operation indicator lamp, an emergency stop button and an opening and closing button are arranged on a panel of the control cabinet 5.

As shown by an arrow in fig. 1, a material transporting vehicle needing loading enters from a rear inlet (right end in fig. 1) of a rack, a vehicle guiding system detects the position of the vehicle through a vehicle positioning sensor 2, prompts a driver of the material transporting vehicle to park in a loading space below a discharging hopper 9 through a guiding signal lamp and an LED display screen arranged in front of the rack, an automatic loading system automatically controls the bidirectional material distributing device to move to the front part of the carriage according to a material level sensor 13 at the front end of the bidirectional material distributing device, the automatic loading system sequentially starts a material distributing scale 8, the bidirectional material distributing device, a discharging opening of the front-end discharging hopper 9 and an electric telescopic chute 14 in sequence, then opens a gate below the material bin discharging opening, allows the material to enter the bidirectional material distributing device through the material distributing scale 8, loads the front section of the carriage from the discharging opening of the front-end discharging hopper 9 of the bidirectional material distributing device, the electric telescopic chute 14, and after the material loading sensor 13 at the discharging opening of the front-end discharging hopper 9 detects that the material loading space reaches a system set height, the automatic loading system controls the bidirectional material distributing device to move to the rear part of the carriage to the set height, and continuously cycles to the set material loading space until the material loading space reaches the set height from the front part of the carriage continuously; when the bin level sensor 13 at the rear discharge port of the bidirectional material distribution device detects the tail part of the carriage, the automatic loading system controls the rear discharge port of the bidirectional material distribution device to put down the electric telescopic chute 14, after waiting for the front discharge port of the bidirectional material distribution device to discharge to a set height, the rear discharge port of the bidirectional material distribution device is opened, meanwhile, the front discharge port of the bidirectional material distribution device is closed and the front electric telescopic chute 14 is retracted, and materials fall into the carriage from the discharge port of the discharge hopper 9 at the rear end of the bidirectional material distribution device and the electric telescopic chute 14, so that the rear section of the carriage is charged; when a material level sensor at a discharging port of a discharging hopper 9 at the rear part of the material distributing device detects that the material is loaded to a system set height, the automatic loading system controls the bidirectional material distributing device to move a set distance to the front part of a carriage, continuously and circularly and reciprocally continuously and forwards, and continuously discharges materials from the rear part of the carriage until the material weighing data of a material distributing scale 8 received by the system reaches a system set tonnage value, the automatic loading system sequentially closes a gate under the bin of the discharging port of the bin, closes the material distributing scale 8 in a delayed manner, and the discharging port and an electric telescopic chute 14 of the bidirectional material distributing device and the rear end discharging hopper 9 according to the sequence. After the materials are loaded, the vehicle guiding system prompts a driver of the material transporting vehicle to finish loading through a guiding signal lamp and an LED display screen which are arranged in front of the frame, and the material transporting vehicle drives out from a front outlet (left end in FIG. 1) of the frame, so that the rapid and automatic loading of the materials is realized; the actions are controlled by a control system; the specific control programming process is designed according to the actual operation requirement, does not belong to the structural scope of the utility model, and the circuit arrangement and connection for realizing control can be overcome by the common sense in the electric control field according to the hardware structural design of the utility model, and the action purpose is combined, so the utility model will not be described in detail.

The specific working process of the automatic car loader comprises the following steps:

a) Initial state: the under-bin gate, the batching scale 8 and the scraper conveyor 11 of the discharging port of the bin are all in a closed state, the electric gate valves 12 on the front end and the rear end discharging hopper 9 of the scraper conveyor 11 are all in a closed state, and the electric telescopic chute 14 is all in a contracted state;

b) The vehicle to be loaded drives into the loading area, the vehicle positioning sensor 2 senses the driving position of the vehicle, the signal lamp lights up to be yellow, and the LED screen synchronously displays the slow forward request; the vehicle identification subsystem reads the information of the radio frequency card of the transfer vehicle, matches the information of the radio frequency card with the corresponding vehicle information stored in the database through vehicle identification software, and sends parameters such as the length, width, height, carriage bottom height, load, material type and the like of the vehicle to the on-site PLC after the matching is successful;

c) The PLC collects parking space detection signals, material level detection signals and weighing signals of the batching scale 8 in real time; automatically calculating the loading height and distributing the loading position of the bidirectional distributing device through a built-in intelligent control program; automatically judging the current loading state of the vehicle, and controlling the loading position of the bidirectional material distribution device;

d) When the carriage front plate of the material transporting vehicle is detected by the vehicle positioning sensor 2, the PLC controller judges that the material transporting vehicle is in place, the signal lamp is LED to light a red light, and the LED screen synchronously displays the stop waiting for loading; the material transporting vehicle is parked to wait for loading;

e) The PLC controller controls the driving motor 20 to operate and drives the scraper to move, and the PLC controller moves the feed opening 10 at the front end of the scraper to the first front loading position according to the detection signal of the material level sensor 13 at one side of the front discharging hopper 9; the electric gate valve 12 on the front end discharge hopper 9 of the scraper conveyor 11 is opened, the electric telescopic chute 14 is adjusted from a contracted state to a lowered state, the batching scale 8 and the scraper conveyor 11 are opened, and then a gate under a bin discharge hole of the bin is opened for loading operation;

f) The PLC controls the batching scale 8 and the scraper to continuously charge the material conveying vehicles according to the loading heights of different material conveying vehicles, and when the material level sensor 13 detects that the current material level reaches the loading height, the PLC controls the driving motor 20 to operate to drive the scraper to move, and the feed opening 10 at the front end of the scraper moves to the next loading position to continuously carry out loading operation;

g) Repeating step f); when a bin level sensor 13 at one side of the rear discharge hopper 9 detects a bin plate behind a carriage, the PLC controls an electric telescopic chute 14 on the discharge hopper 9 at the rear end of the scraper conveyor 11 to be adjusted from a contracted state to a lowered state, and after a discharging opening 10 at the front end of the scraper conveyor 11 is discharged to a set bin level, an electric gate valve 12 on the discharge hopper 9 at the rear end of the scraper conveyor 11 is opened, and meanwhile, the electric gate valve 12 on the discharge hopper 9 at the front end of the scraper conveyor 11 is closed, and the electric telescopic chute 14 on the discharge hopper 9 at the front end of the scraper conveyor 11 is upwards retracted and adjusted to be in the contracted state; the scraper is changed into a scraper which moves forwards from the tail of the carriage;

h) The PLC controls the batching scale 8 and the scraper to continuously charge the material conveying vehicles according to the loading heights of different material conveying vehicles, and when the material level sensor 13 detects that the current material level reaches the loading height, the PLC controls the driving motor 20 to operate to drive the scraper to move, and the discharging opening 10 at the rear end of the scraper moves to the next loading position to continuously carry out loading operation;

i) When the loaded materials reach the set tonnage, the PLC controls to close the under-bin gate of the discharging hole of the bin, delay for a certain time (30 seconds, for example) and close the batching scale 8, the scraper conveyor 11 and the electric gate valve 12 on the discharging hopper 9 at the rear end of the scraper conveyor 11; the electric telescopic chute 14 is retracted upwards and adjusted to be in a contracted state; the traffic signal lamp is turned from a red lamp to a green lamp to be turned on, and the LED screen synchronously displays 'driving out after finishing loading', so as to prompt a driver to drive away from a loading area;

j) The driver drives to leave the lower part of the discharging hopper 9, and the loading process is completed;

k) Repeating the operations of the steps b to j, and carrying out the loading process of the next material conveying vehicle.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Other than the technical features described in the specification, all are known to those skilled in the art.

The above-mentioned embodiments are only for understanding the present utility model, and are not intended to limit the technical solutions described in the present utility model, and a person skilled in the relevant art may make various changes or modifications based on the technical solutions described in the claims, for example, a pneumatic system is used instead of a hydraulic system, and all equivalent changes or modifications are intended to be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a remove automatic carloader of material mouth formula weighing measurement, includes frame, its characterized in that: the frame is provided with a batching scale and a bidirectional distributing device capable of moving forwards and backwards, the upper part of the front end of the batching scale is provided with a feed inlet, the feeding device is connected with a discharge hole of a storage bin and used for receiving materials of the storage bin, and the lower part of the rear end of the batching scale is provided with a feed opening; the bidirectional distributing device is positioned at the lower part of the discharging opening and is used for receiving materials sent by the batching scale; two ends of the bidirectional distributing device are provided with discharging hoppers, and the space at the lower part of the discharging hoppers can be filled by a material conveying vehicle which can be parked at a loading position below the discharging hoppers.

2. The mobile material gate type weighing and metering automatic loader according to claim 1, wherein: the bidirectional material distribution device comprises a scraper conveyor, a travelling wheel is arranged at the lower part of a chassis of the scraper conveyor, and the travelling wheel can move along a horizontal guide rail arranged on the frame; the discharging hopper is connected to the underframe and is positioned right below the conveying roller at the end part of the scraper conveyor.

3. The mobile material gate type weighing and metering automatic loader according to claim 2, wherein: the lower part of the underframe of the scraper conveyor is rotationally connected with a synchronizing shaft, two ends of the synchronizing shaft are provided with the travelling wheels, and the outer end part of the synchronizing shaft is connected with an output shaft of a driving motor.

4. The mobile material gate type weighing and metering automatic loader according to claim 1, wherein: the lower part of the discharge hopper is provided with a discharge port, and the discharge port is connected with an electric telescopic chute.

5. The mobile material gate type weighing and metering automatic loader according to claim 4, wherein: an electric gate valve is arranged between the discharging hole and the electric telescopic chute.

6. The mobile material gate type weighing and metering automatic loader according to claim 1, wherein: the lower end of the frame is provided with a traveling wheel.