CN216613162U - Two-way accurate material loading system - Google Patents

Abstract

The utility model relates to the technical field of bidirectional loading of materials, in particular to a bidirectional accurate material loading system, which comprises a storage bin, wherein a supporting layer is arranged below the storage bin, a discharging assembly is arranged in the supporting layer, an installation platform is arranged below the discharging assembly, and a loading passageway for loading a vehicle is arranged below the installation platform; and a discharging component, a weighing device, a discharging component and a conveying belt are arranged between the supporting layer and the mounting platform, the discharging component is connected with the discharging component, and the discharging component and the weighing device are connected with the conveying belt. The utility model solves the problems that the input amount cannot be effectively controlled and the environmental pollution is serious in the structure of the prior art.

Description

Two-way accurate material loading system

Technical Field

The utility model relates to the technical field of bidirectional material loading, in particular to a bidirectional accurate material loading system.

Background

Under the call of constantly advocating green mine, ore mining and transportation mode have not been fit for the situation in China now at present, and the automation level of ore loading systems such as current coal, metallurgy is lower, and it is direct directly put in on haulage vehicle with no material such as ore through going out the hopper mostly, and its in-process material input volume is uncontrollable, can also cause the scattering everywhere of a large amount of dust simultaneously, causes serious environmental pollution.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a two-way accurate material loading system, its problem that has solved prior art's structure mesolaw effective control input volume and environmental pollution seriously.

The technical scheme of the application is as follows:

the utility model provides a bidirectional accurate material loading system which comprises a storage bin, wherein a supporting layer is arranged below the storage bin, a discharging assembly is arranged in the supporting layer, an installation platform is arranged below the discharging assembly, and a loading passageway for loading vehicles is arranged below the installation platform; a discharging assembly, a weighing device, a discharging assembly and a conveying belt are arranged between the supporting layer and the mounting platform, the discharging assembly is connected with the discharging assembly, and the discharging assembly and the weighing device are both connected with the conveying belt; the discharging assembly comprises a first discharging hopper and a second discharging hopper, and the first discharging hopper and the second discharging hopper are respectively positioned at two ends of the conveying belt; the blanking assembly comprises a first blanking pipe and a second blanking pipe, the lower end opening of the first discharging hopper is connected with the first blanking pipe, and the lower end opening of the second discharging hopper is connected with the second blanking pipe; the discharging assembly comprises a first discharging hopper and a second discharging hopper, and two ends of the conveying belt are respectively located in the first discharging hopper and the second discharging hopper.

Further, the first blanking pipe and the second blanking pipe are far away from one end opening of the storage bin, and the opening is opposite to the upper portion of the conveying belt.

Further, the first discharging pipe and the second discharging pipe respectively comprise a connecting part, a transition part and a discharging part which are sequentially communicated, and the two connecting parts are respectively communicated with the lower ends of the first discharging hopper and the second discharging hopper.

Further, the diameter of the connecting part is the same as that of the blanking part, and the diameter of the transition part is larger than that of the connecting part.

Further, the blanking part comprises a first section and a second section which are communicated, the first section and the second section are arranged at 135 degrees, and a material controller for controlling blanking is arranged in the transition part.

Further, all be provided with the atomizer in conveyer belt top, first blowing hopper lower extreme export, the first blowing hopper lower extreme export, first blowing hopper with the second blowing hopper all communicates there is the dust collector, two the dust collector is central symmetry and sets up the both ends of conveyer belt, still be provided with in the conveyer belt and be used for changing conveyer belt direction of delivery's leading wheel.

Further, the dust collector comprises a driving motor, a conversion cavity, a collecting pipe and a discharging pipe, the collecting pipe is communicated with the conversion cavity, the driving motor is connected with the conversion cavity, an opening at one end of the conversion cavity is located above the conveying belt and opposite to the conveying belt, and the discharging pipe is located on the outer side of the conveying belt.

Furthermore, the dust collector, the sprayer, the blanking assembly, the discharging assembly, the weigher and the conveyer belt are electrically connected.

The technical scheme of the application has following advantage and beneficial effect at least:

the utility model provides a bidirectional accurate material loading system which is provided with a first discharge hopper, a second discharge hopper, a first discharging pipe, a second discharging pipe, a conveying belt and a weighing device, wherein materials such as ores and the like are discharged from a storage bin through the first discharge hopper and the second discharge hopper, and particularly, valves capable of controlling the opening and closing of the first discharge hopper and the second discharge hopper and whether discharging is carried out or not are arranged in the first discharge hopper and the second discharge hopper. The first blanking pipe and the second blanking pipe are used for connecting materials from the first discharging hopper and the second discharging hopper and putting the materials on the conveying belt, meanwhile, the first blanking pipe and the second blanking pipe are additionally arranged, and can be shielded and protected in the falling process of the materials, so that the materials can fall along a fixed track, meanwhile, the first blanking pipe and the second blanking pipe can also play a role in preventing dust from splashing everywhere, and the environmental pollution is reduced. Set up first blowing fill and second blowing fill, put into the delivery wagon with the material on the conveyer belt in, set up the ware of weighing to set up the ware of weighing on the conveyer belt, through the detection to the material quality on the conveyer belt, then with weighing signal transfer for first blowing fill, second blowing fill, first unloading pipe or second unloading pipe, the volume of seeing off from the feed bin is controlled to the control that can be better, and then the input volume of the material of loading needs. An object of this application is to provide a two-way accurate material loading system, its problem that has solved prior art's structure mesolaw effective control input volume and environmental pollution seriously.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is a third schematic structural diagram of the present invention;

FIG. 4 is a fourth schematic structural diagram of the present invention;

FIG. 5 is a schematic structural view of a first blanking tube according to the present invention;

FIG. 6 is a fifth schematic view of the present invention;

FIG. 7 is an enlarged view of FIG. 6 at B;

FIG. 8 is an enlarged view taken at A in FIG. 6;

FIG. 9 is a sixth schematic structural view of the present invention;

FIG. 10 is one of the roadmaps for material drop;

FIG. 11 is a second route chart of material falling;

FIG. 12 is one of the roadmaps for dust collection;

fig. 13 is a second route for dust collection.

Icon: 1-a storage bin; 2-a support layer; 3-a first discharge hopper; 4-a second discharge hopper; 5, mounting a platform; 6-loading aisle; 7-a first discharge hopper; 8-a second discharge hopper; 9-a first blanking pipe; 901-a connection; 902-a transition; 903-a blanking part; 9031-paragraph; 9032-second section; 904-material control device; 10-a second feeding pipe; 11-a conveyor belt; 1101-a speed sensor; 12-a sprayer; 13-a dust collector; 1301-a drive motor; 1302-a conversion chamber; 1304-a collection tube; 1305-a discharge pipe; 14-a weigher; 1401-weighing bridge; 1402-a load sensor; 1403-weighing carrier roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inner", "outer", etc. are used to indicate an orientation or positional relationship based on that shown in the drawings or that the product of the application is usually placed in use, this is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 application can be understood in a specific case by those of ordinary skill in the art.

Example 1

Referring to fig. 1 to 13, the utility model provides a bidirectional accurate material loading system, which comprises a storage bin 1, wherein a supporting layer 2 is arranged below the storage bin 1, a discharging assembly is arranged in the supporting layer 2, an installation platform 5 is arranged below the discharging assembly, and a loading passageway 6 for loading vehicles is arranged below the installation platform 5; a discharging component, a weighing device 14, a discharging component and a conveying belt 11 are arranged between the supporting layer 2 and the mounting platform 5, the discharging component is connected with the discharging component, and the discharging component and the weighing device 14 are both connected with the conveying belt 11; the discharging assembly comprises a first discharging hopper 3 and a second discharging hopper 4, and the first discharging hopper 3 and the second discharging hopper 4 are respectively positioned at two ends of the conveying belt 11; the blanking assembly comprises a first blanking pipe 9 and a second blanking pipe 10, the lower end opening of the first discharging hopper 3 is connected with the first blanking pipe 9, and the lower end opening of the second discharging hopper 4 is connected with the second blanking pipe 10; the discharging assembly comprises a first discharging hopper 7 and a second discharging hopper 8, and two ends of the conveying belt 11 are respectively positioned in the first discharging hopper 7 and the second discharging hopper 8.

It is worth explaining that the existing ore loading systems for coal, metallurgy and the like have lower automation level, most of the systems directly put ores and the like on a transport vehicle through a discharge hopper without materials, the material putting amount in the process cannot be controlled, and meanwhile, a large amount of dust can be scattered everywhere to cause serious environmental pollution. The application provides a bidirectional accurate material loading system, which is provided with a first discharge hopper 3, a second discharge hopper 4, a first discharge hopper 7, a second discharge hopper 8, a first discharge pipe 9, a second discharge pipe 10, a conveyer belt 11 and a weigher 14, wherein materials such as ores and the like are discharged from a storage bin 1 through the first discharge hopper 3 and the second discharge hopper 4, in particular, valves capable of controlling the opening and closing of the valves and whether to discharge the materials are arranged in the first discharge hopper 3 and the second discharge hopper 4, on the other hand, the valves can also be used for overhauling the first discharge hopper 3 and the second discharge hopper 4 or using the valves and cleaning the valves when the valves are not produced, the valves can be used for connecting the materials from the first discharge hopper 3 and the second discharge hopper 4 through the first discharge pipe 9 and the second discharge pipe 10 and putting the materials on the conveyer belt 11, and simultaneously, the first discharge pipe 9 and the second discharge pipe 10 can also be shielded and protected during the falling of the materials, the material can fall along a fixed track, and the first discharging pipe 9 and the second discharging pipe 10 can also play a role in preventing dust from splashing everywhere, so that the environmental pollution is reduced. Set up first blowing fill 7 and second blowing fill 8, put into the delivery wagon with the material on the conveyer belt 11, it is concrete, first blowing fill 7 and second blowing fill 8 all include the upper portion and the lower part of intercommunication, upper portion is for leaking hopper-shaped, the lower part is the pipeline form, it is optional, the length of lower part sets up according to the in-service use condition, it is preferred, can set up the lower part into extending structure, it is more excellent, set up the lower part into automatic flexible structure, set up the material on the conveyer belt 11 through upper portion and gather, the delivery wagon is carried to the rethread lower part, it is optional, the lower part of flexible form can stretch into the box of delivery wagon, then can reach better dustproof effect. Set up weigher 14 to set up weigher 14 on conveyer belt 11, through the detection to material quality on the conveyer belt 11, then give first hopper 3, second hopper 4, first unloading pipe 9 or second unloading pipe 10 with weighing signal transfer, the volume of control material seeing off from feed bin 1, and then the input volume of the material that the control that can be better needs the loading. In one embodiment, the material comes out of the first blanking pipe 9 at the left end, moves to the right through the conveyer belt 11, and is loaded into the transport vehicle from the second blanking hopper 8 at the right side; in the second embodiment, the material comes out from the second blanking pipe 10 at the right end, moves leftwards through the conveyer belt 11, and is loaded into the transport vehicle from the first blanking hopper 7 at the left side; in both embodiments, the materials are conveyed and pass through the weighing device 14 in the process of passing through the conveying belt, so that accurate metering and accurate loading are realized. An object of this application is to provide a two-way accurate material loading system, its problem that has solved prior art's structure mesolaw effective control input volume and environmental pollution seriously.

Example 2

On the basis of embodiment 1, provide a two-way accurate material loading system, specifically do: the one end opening that feed bin 1 was kept away from to first unloading pipe 9 and second unloading pipe 10 all sets up with 11 tops of conveyer belt relatively, and then guarantees the whereabouts that the material can be accurate on conveyer belt 11, and is preferred, and the opening diameter that first unloading pipe 9 and second unloading carried out the blanking is less than the bandwidth of conveyer belt 11. Optionally, swing joint can be set up between first unloading pipe 9 and the first play hopper 3, between second unloading pipe 10 and the second play hopper 4, through the angle of control first unloading pipe 9 and second unloading, make it carry out the blanking opening relative with the different positions of conveyer belt 11, improve the practicality of this application.

In this embodiment, each of the first blanking pipe 9 and the second blanking pipe 10 includes a connecting portion 901, a transition portion 902, and a blanking portion 903 which are sequentially communicated, and the two connecting portions 901 are respectively communicated with the lower ends of the first discharge hopper 3 and the second discharge hopper 4. In the present embodiment, the diameter of the connecting portion 901 is the same as that of the blanking portion 903, and the diameter of the transition portion 902 is larger than that of the connecting portion 901. In this embodiment, the blanking portion 903 includes a first section 9031 and a second section 9032 which are communicated with each other, the first section 9031 and the second section 9032 are arranged at an angle of 135 degrees, and a material controller 904 for controlling blanking is arranged in the transition portion 902. Collect the material of whereabouts through connecting portion 901, carrying out a buffering to the material through transition portion 902, realize the whereabouts of material through unloading portion 903 at last, so set up the diameter of transition portion 902 for the buffering that realizes the material to be greater than the diameter of connecting portion 901, simultaneously, be provided with accuse glassware 904 in transition portion 902, whether can be through controlling the material through accuse glassware 904, and then realize controlling the volume of the material that passes through. Set up the angle between one section 9031 and the two-section 9032 to 135 degrees, it is concrete, the axis of two-section 9032 and the perpendicular setting of 11 place planes of conveyer belt, the plane at two-section 9032 below opening place is parallel with 11 upper surface of conveyer belt, then the material then can directly fall on 11 conveyer belt with self gravity at the in-process of whereabouts, can not produce the oblique power and cause the material to make useless work, this setting can also reduce the injury that 11 conveyer belts of material heap caused simultaneously, and then improve 11's of conveyer belt life, the shorter problem of 11 life of conveyer belt among the prior art has still been solved in this application.

In this embodiment, 11 tops of conveyer belt, in the outlet of first blowing 7 lower extremes, all be provided with atomizer 12 in the outlet of first blowing 7 lower extremes, first blowing 7 and second blowing 8 all communicate has dust collector 13, and two dust collector 13 are central symmetry and set up at 11 both ends of conveyer belt, still are provided with the leading wheel that is used for changing 11 direction of delivery of conveyer belt in the conveyer belt 11. Through setting up atomizer 12, make the dust in the air descend through atomizer 12 spun moisture, avoid the dust to fly away everywhere, on the other hand all sets up atomizer 12 in a plurality of positions, can realize at material whereabouts loading in-process, carry out forcing down of dust to a plurality of positions and space simultaneously, the space that can the most probable increase dust forcing down improves air purification's effect, the problem that dust forced down effect is not good among the prior art structure has still been solved to this application.

Example 3

On the basis of embodiment 2, provide a two-way accurate material loading system, specifically do: the dust collector 13 includes a driving motor 1301, a switching chamber 1302, a collecting pipe 1304 and a discharge pipe 1305, the collecting pipe 1304 and the discharge pipe 1305 are both communicated with the switching chamber 1302, the driving motor 1301 is connected with the switching chamber 1302, an opening of one end of the collecting pipe 1304, which is far away from the switching chamber 1302, is located above the conveying belt 11 and is opposite to the conveying belt 11, and the discharge pipe 1305 is located outside the conveying belt 11. The dust is sucked into the collection pipe 1304 by driving the motor 1301, discharged and collected from the discharge pipe 1305 through the switch chamber 1302, and collected in multiple stages by providing the dust collector 13 on the basis of the sprayer 12, thereby reducing the floating amount of the dust in the loading space as much as possible. Specifically, through keeping away from the one end opening of conversion chamber 1302 with collecting pipe 1304 relative with 11 ends of conveyer belt, at the material through the conveyer belt 11 from 11 one ends of conveyer belt in-process that fall, the material is because the action of whereabouts can produce a large amount of dust, and this setting then can realize just collecting it when the dust just begins to float, avoids the dust to fly into outside first unloading pipe 9 and the second unloading pipe 10 to cause the pollution to the environment. The application further solves the problem that the structure in the prior art causes serious environmental pollution.

In the embodiment, the dust collector 13, the sprayer 12, the blanking assembly, the emptying assembly, the weigher 14 and the conveyer belt 11 are electrically connected. Through the electricity connection between dust collector 13, atomizer 12, unloading subassembly, blowing subassembly, weighing device 14, the conveyer belt 11, the volume that can fall and the volume that the material fell on conveyer belt 11 in the feed bin 1 is followed to the effectual control material of intelligence, and this application has still solved the more problem of prior art center loading inefficiency and manual work assistance. Optionally, the conveyer belt 11 has longeron and belt, and weighing device 14 includes weighing crane span structure 1401 and a plurality of load cell 1402, and load cell 1402 sets up on weighing crane span structure 1401, and weighing crane span structure 1401 links to each other with the longeron, is connected with a plurality of weighing idler 1403 on weighing crane span structure 1401, and load cell 1402 is located weighing idler 1403 below, and the belt is located weighing idler 1403 top. The arrangement of the load sensors 1402 can detect the mass of the conveyer belt 11 at a plurality of positions, so that the weighing accuracy is improved, and the material loading accuracy is further improved. Optionally, a speed sensor 1101 is disposed in the conveyor belt 11, the transmission speed of the conveyor belt 11 is detected by the speed sensor 1101, and the control and adjustment of the conveying speed of the conveyor belt 11 are realized by the number limit feedback of the speed sensor 1101.

The during operation, open the valve of first play hopper 3 and second play hopper 4, start conveyer belt 11, open first unloading pipe 9 or second unloading pipe 10 after the interval several seconds, the material gets into first play hopper 3 or second play hopper 4 from feed bin 1, then carry out the blowing, the material falls on conveyer belt 11, atomizer 12 sprays the dust that the material placed on conveyer belt 11 was mingled with, its dust adhesion avoids its showy on the material, switch of positive and negative direction is carried out to the leading wheel in conveyer belt 11 through software simultaneously, and then realize that the material falls from conveyer belt 11 left side or right side. Optionally, when the conveyer belt 11 transports the material to the left, the first discharging pipe 9 is controlled to be opened, and the second discharging pipe 10 is controlled to be closed; when the conveying belt 11 conveys materials, the second discharging pipe 10 is controlled to be opened, and the first discharging pipe 9 is controlled to be closed. The material is through conveyer belt 11 and carry out the ejection of compact according to the ejection of compact direction that has set for, and simultaneously, the weighing device 14 of installing on conveyer belt 11 carries out accurate measurement to the material quality of process, and with data real-time transmission to the system in, when the material quality reaches the weight that the system set for, the system then first unloading pipe 9 of self-closing opens or second unloading pipe 10, the material flows to first blowing fill 7 or second blowing fill 8 position through conveyer belt 11 during, install dust collector 13 on first blowing fill 7 and second blowing fill 8 and concentrate the collection to the dust of taking in the material, carry out the secondary treatment dust fall by atomizer 12 of installing on first blowing fill 7 and second blowing fill 8 to the material again, reach the effect to the two dust removals of material, clean material flows into in the carriage of transport vechicle at last. And in addition, the loading material data can be transmitted to the system in real time to generate a production ledger, so that the production management is facilitated. The bidirectional accurate material loading system can quickly and continuously load massive materials into a complete set of equipment in a carriage according to preset weight in a one-key automatic control mode within specified time, avoid overload or insufficient loading, facilitate production management and reduce environmental pollution. Meanwhile, the system has the beneficial effects of reducing environmental pollution, being high in reliability, saving labor cost, being high in loading precision, being high in loading speed and the like, solves the problems of low loading precision, low speed, high labor cost, difficulty in management, serious environmental pollution and the like in the prior art, also solves the problems of overload, underload and the like in the loading process of the automobile in the prior art, and greatly improves the loading efficiency.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a two-way accurate material loading system which characterized in that includes: the device comprises a storage bin (1), wherein a supporting layer (2) is arranged below the storage bin (1), a discharging assembly is arranged in the supporting layer (2), an installation platform (5) is arranged below the discharging assembly, and a loading passageway (6) for loading vehicles is arranged below the installation platform (5); a discharging component, a weighing device (14), a discharging component and a conveying belt (11) are arranged between the supporting layer (2) and the mounting platform (5), the discharging component is connected with the discharging component, and the discharging component and the weighing device (14) are connected with the conveying belt (11); wherein,

the discharging assembly comprises a first discharging hopper (3) and a second discharging hopper (4), and the first discharging hopper (3) and the second discharging hopper (4) are respectively positioned at two ends of the conveying belt (11);

the blanking assembly comprises a first blanking pipe (9) and a second blanking pipe (10), the lower end opening of the first discharging hopper (3) is connected with the first blanking pipe (9), and the lower end opening of the second discharging hopper (4) is connected with the second blanking pipe (10);

the discharging assembly comprises a first discharging hopper (7) and a second discharging hopper (8), and two ends of the conveying belt (11) are respectively located in the first discharging hopper (7) and the second discharging hopper (8).

2. The bi-directional precision material loading system of claim 1,

the first discharging pipe (9) and the second discharging pipe (10) are far away from one end opening of the storage bin (1) and are arranged above the conveying belt (11) oppositely.

3. The bi-directional precision material loading system of claim 1,

the first discharging pipe (9) and the second discharging pipe (10) respectively comprise a connecting part (901), a transition part (902) and a discharging part (903) which are sequentially communicated, and the two connecting parts (901) are respectively communicated with the lower ends of the first discharging hopper (3) and the second discharging hopper (4).

4. A bi-directional precision material loading system of claim 3,

the diameter of the connecting part (901) is the same as that of the blanking part (903), and the diameter of the transition part (902) is larger than that of the connecting part (901).

5. A bi-directional precision material loading system of claim 3,

the blanking portion (903) comprises a first section (9031) and a second section (9032) which are communicated, the first section (9031) and the second section (9032) are arranged at 135 degrees, and a material controller (904) used for controlling blanking is arranged in the transition portion (902).

6. A bi-directional precision material loading system of claim 3,

conveyer belt (11) top, first blowing fill (7) lower extreme export in, all be provided with atomizer (12) in first blowing fill (7) lower extreme export, first blowing fill (7) with second blowing fill (8) all communicate dust collector (13), two dust collector (13) are the centrosymmetric setting and are in the both ends of conveyer belt (11), still be provided with in conveyer belt (11) and be used for changing conveyer belt (11) direction of delivery's leading wheel.

7. The bi-directional precision material loading system of claim 6,

the dust collector (13) comprises a driving motor (1301), a conversion cavity (1302), a collecting pipe (1304) and a discharging pipe (1305), wherein the collecting pipe (1304) and the discharging pipe (1305) are communicated with the conversion cavity (1302), the driving motor (1301) is connected with the conversion cavity (1302), an opening at one end, far away from the conversion cavity (1302), of the collecting pipe (1304 is located above the conveying belt (11) and opposite to the conveying belt (11), and the discharging pipe (1305) is located on the outer side of the conveying belt (11).

8. The bi-directional precision material loading system of claim 7,

the dust collector (13), the sprayer (12), the blanking assembly, the emptying assembly, the weigher (14) and the conveying belt (11) are electrically connected.

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