CN217755843U - Material conveying device and material conveying system - Google Patents

Abstract

The application relates to the technical field of material conveying, the application discloses feeding device and defeated material system, wherein feeding device includes the storage spare, defeated material pipeline and pneumatic drive mechanism, the storage spare includes feed inlet and discharge gate, feed inlet and the butt joint of first defeated material mouth, the one end and the discharge gate butt joint of defeated material pipeline, the other end of defeated material pipeline with wait defeated material regional butt joint, the storage spare forms defeated material chamber with defeated material pipeline, pneumatic drive mechanism and defeated material chamber butt joint. Compared with the prior art, the pneumatic driving mechanism can drive materials in the storage member to be guided into the material conveying pipeline from the discharge port through the driving airflow formed by the material conveying pipeline and the material storage member in the material conveying cavity, and the material conveying pipeline guides the materials to be conveyed into the material conveying area, so that convenience is further improved, noise is reduced, and material conveying cost is reduced.

Description

Material conveying device and material conveying system

Technical Field

The application relates to the technical field of material conveying, in particular to a material conveying device and a material conveying system.

Background

When the material is carried, often need convey the material in another hopper of take the altitude by the hopper on ground, need set up feeding device between the hopper of ground hopper and eminence, current feeding device uses the auger as the driving source to carry out the defeated material usually, this kind of defeated material mode has great friction between material and auger piece, make the wearing and tearing of flood dragon piece big, need often to maintain to renew, cause the cost extravagant, the high-speed operation of auger causes the noise, it is healthy unfavorable to the people ear.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems of high cost and large noise of the material conveying device in the material conveying process, the main purpose of the application is to provide the material conveying device and the material conveying system which are low in cost and low in noise.

In order to realize the purpose of the utility model, the following technical scheme is adopted in the application:

according to an aspect of this application, provide a feeding device, include:

the material storage piece comprises a feeding hole and a discharging hole;

one end of the material conveying pipeline is in butt joint with the discharge port, the other end of the material conveying pipeline is in butt joint with a region to be conveyed, and the material storage piece and the material conveying pipeline form a material conveying cavity;

and the pneumatic driving mechanism is in butt joint with the material conveying cavity.

According to an embodiment of the application, including filtering mechanism, filtering mechanism includes the hopper and filters the piece, the hopper includes first material mouth and second material mouth, the second material mouth with the feed inlet butt joint, filter set up in first material mouth with between the second material mouth.

According to an embodiment of the application, wherein still include vibrations mechanism, vibrations mechanism includes first driving piece and first control switch, first driving piece with first control switch electricity is connected, filter the piece assemble in first driving piece, first driving piece is used for driving it is relative to filter the piece hopper displacement.

According to an embodiment of the application, wherein still include sealing mechanism, sealing mechanism includes closing plate and second driving piece, the closing plate towards the feed inlet movably assemble in the second driving piece, the second driving piece is used for driving the closing plate seals or opens the feed inlet.

According to an embodiment of the present application, the second driving member includes a control valve and a power member, the control valve is electrically connected to the power member, and the sealing plate is rotatably mounted to the power member.

According to an embodiment of the application, wherein pneumatic actuating mechanism includes gas transmission pipeline, gas compressor and second control switch, the one end of gas transmission pipeline connect in gas compressor, the other end of gas transmission pipeline connect in the storage spare, second control switch set up in the gas transmission pipeline, be used for control the break-make state of air current in the gas transmission pipeline.

According to an embodiment of the present application, wherein the pneumatic driving mechanism further comprises an air pressure detection member, the air pressure detection member is disposed in the air transmission pipeline and electrically connected to the gas compressor.

According to an embodiment of the present application, the material delivery pipe includes a plurality of connecting pipes, a first included angle α is formed between the extending directions of adjacent connecting pipes, where α is greater than or equal to 90 °, and a transition section with a rounded corner is formed between adjacent connecting pipes.

According to an embodiment of this application, wherein still include guide spare, guide spare includes defeated silo, first material conveying mouth and water conservancy diversion wall, the water conservancy diversion wall encloses into defeated silo, the feed inlet with first defeated material mouth butt joint, the extending direction of water conservancy diversion wall with the inclination has between the plane at first defeated material mouth place, by the extending direction of water conservancy diversion wall to the direction of first material conveying mouth, the bore of defeated silo dwindles gradually.

According to another aspect of the application, a material conveying system is provided, which comprises the material conveying device.

According to the technical scheme, the material conveying device and the material conveying system have the advantages and positive effects that:

compared with the prior art, this application is through when needing the material to derive by the storage spare, only need through control pneumatic actuating mechanism, at the drive air current that the defeated material chamber that conveying pipeline and storage spare formed, drive the material in the storage spare by the leading-in to conveying pipeline of discharge gate in through drive air current to it is regional to wait to defeated material through the leading-in of conveying pipeline, and then on the basis that improves material transfer efficiency, noise reduction, reduction defeated material cost.

Drawings

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

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

Fig. 1 is a schematic overall structure diagram of a material conveying device according to an embodiment of the present application;

fig. 2 is another schematic overall structure diagram of a material conveying device according to an embodiment of the present application;

fig. 3 is a schematic view of a part of an enlarged structure of a feeding device according to an embodiment of the present disclosure;

fig. 4 is a schematic top view of a material guiding member of a material transporting device according to an embodiment of the present disclosure.

Wherein:

10. a material guide member; 101. a material conveying groove; 102. a first material conveying port; 103. a flow guide wall;

20. a material storage member; 201. a feed inlet; 202. a discharge port;

30. a delivery pipeline; 301. a connecting pipe; 302. a transition section; alpha, a first included angle;

40. a pneumatic drive mechanism; 401. a gas transmission pipeline; 402. a gas compressor; 403. a second control switch; 404. an air pressure detecting member;

50. a filtering mechanism; 501. a hopper; 511. a first material port; 512. a second material port; 502. a filter member;

60. a vibration mechanism; 601. a first driving member; 602. a first control switch;

70. a sealing mechanism; 701. a sealing plate; 702. a second driving member; 721. a control valve; 722. a power member;

100. a material conveying area; 200. a material conveying cavity.

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. 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.

When the material is carried, often need convey the material to another hopper of take the altitude by the hopper on ground, need set up feeding device between the hopper of ground hopper and eminence, current feeding device uses the auger as the driving source to carry out defeated material usually, this kind of defeated material mode has great friction between material and auger piece, make the wearing and tearing of auger piece big, need often to maintain to renew, cause the cost extravagant, the high-speed operation of auger causes the noise, it is healthy unfavorable to the human ear.

For example, when the precoated sand is stored in a sand hopper on the ground, the sand is fed between the ground sand hopper and a sand silo at the top of the core making machine in the form of a packing auger. In this way, the abrasion of the sand to the auger sheet is large, the auger sheet needs to be maintained and replaced frequently, the cost is wasted, and the noise is caused by the high-speed operation of the auger. In order to improve the efficiency, reduce production cost and reduce noise in the material conveying process, not only the cost is saved and the consumption is reduced, but also the product quality is improved.

For example, the hot core box core making technology is widely applied to casting processes of various casting products, such as various automobile accessories of engine cylinder bodies, engine cylinder covers, automobile supports and the like, and industries of various rotary valve bodies and the like, the hot core box core making machines with different specifications and models are used for making cores, a large number of small and medium-sized sand cores are produced in a flow mode, and the hot core box core making has the advantages of high forming speed, high efficiency, high sand core strength, molten iron impact resistance, high size precision, stable sand core forming, less sand core waste, good sand core surface quality, good collapsibility and easiness in cleaning castings.

The working principle of the hot core box is that sand is discharged downwards through a sand bin at the top of the equipment, the precoated sand prepared by adopting thermosetting resin and a catalyst is quickly filled in the whole hot core box mould through the sand shooting effect of a sand shooting plate, the surface of the precoated sand is heated through the heating function of a high-temperature mould, the adhesive is condensed and hardened in a short time, the precoated sand is quickly solidified (the solidification time is only a few minutes), the very high use strength is achieved, the general tensile strength is more than 4MPa, and the use conditions of various casting structures are met.

At present, in the working link of a hot core box core making machine, a sand conveying device is an important device for saving manpower and improving efficiency, because a sand shooting plate and a core ejecting plate exchange stations, a part of precoated sand can be scattered, some of the precoated sand is in a heated semi-solidification state, and some of the precoated sand is in a new sand state, no matter the used sand is recycled or the new sand is conveyed, how to more save time and labor and how to collect, screen and convey the new and used sand to a top sand bin of the hot core box is a difficult problem which always troubles the core making of the hot core box.

The existing used sand screening mode is as follows: the scattered used sand is collected manually and then screened by manually holding a screen, and the method has the defects of manpower consumption, low labor efficiency, low quality of the used sand screened manually, uneven mesh number of sand grains and influence on the quality of sand cores.

The existing sand feeding modes include the following modes:

(1) and (3) loading the new and old precoated sand into a special sand loading ton bag, lifting the sand bag to a sand bin at the top of the hot core box by using a travelling crane, and then manually climbing the top to discharge the sand into the sand bin. The disadvantages are as follows: the labor consumption, the labor frequency and the efficiency are high, and higher potential safety hazards exist.

(2) And (3) storing the precoated sand in a sand hopper on the ground, and conveying the sand between the ground sand hopper and a sand bin at the top of the core making machine in a packing auger mode. The disadvantages are as follows: the abrasion of the sand to the auger piece is large, the auger piece needs to be maintained and replaced frequently, the cost is wasted, the auger runs at a high speed to cause noise, and the noise is not good for the health of ears.

(3) A sand pit is dug below the ground and is specially used for storing the precoated sand, and then the precoated sand is transported to a sand cabin of a core making machine in a bucket lifting mode. The disadvantages are as follows: the whole equipment is high, has great requirements on the height of a factory building, has low working efficiency, and sand pit storage precoated sand easily causes sand moisture absorption.

For solving the problem among the above-mentioned prior art, this application provides a device with convenient collection, vibrations sieve, pneumatic sand that send, furthest uses manpower sparingly, reduces frequency of labour, improves work efficiency, promotes used sand retrieval and utilization quality, reduction in production cost, not only will save cost and consumption reduction, still need to promote product quality. According to an aspect of this application, provide a feeding device, include:

the storage piece 20 comprises a feeding hole 201 and a discharging hole 202;

one end of the material conveying pipeline 30 is butted with the material outlet 202, the other end of the material conveying pipeline 30 is butted with the area to be conveyed 100, and the storage member 20 and the material conveying pipeline 30 form a material conveying cavity 200;

the pneumatic driving mechanism 40 is in butt joint with the material conveying cavity 200, and the pneumatic driving mechanism 40 is used for generating compressed air for the material conveying cavity 200.

Referring to fig. 1-4, firstly, materials are stored through a material storage member 20, a material conveying pipeline 30 is used for conveying the materials in the material storage member 20 to a material conveying area 100 to be conveyed, the material conveying pipeline 30 and the material storage member 20 form a material conveying cavity 200, the material conveying pipeline is in butt joint with the material conveying cavity 200 through a pneumatic driving mechanism 40, the pneumatic driving mechanism 40 is controlled to introduce compressed air into the material conveying cavity 200, and driving air flow is generated in the material conveying cavity 200, so that the driving air flow moves from the material storage member 20 to the material conveying pipeline 30 and is transferred from the material storage member 20 to the material conveying area 100 to be conveyed through the material conveying pipeline 30.

Through the scheme, when the required material is guided out from the material storage member 20, the driving air flow formed by the material conveying cavity 200 formed by the material conveying pipeline 30 and the material storage member 20 is driven by the driving air flow to guide the material in the material storage member 20 into the material conveying pipeline 30 from the material outlet 202 and guide the material to be conveyed into the material conveying area 100 through the material conveying pipeline 30, so that the noise is reduced and the material conveying cost is reduced on the basis of improving the material transfer efficiency.

In order to realize the purpose of the utility model, the following technical scheme is adopted to realize: generally speaking, the device has a storage member 20 for storing sand, the sand hopper is provided with a pneumatic driving mechanism 40, a filtering mechanism 50, a material guiding member 10 and the like, when the work station of the top core plate and the sand shooting plate is exchanged, scattered old sand is collected to the filtering mechanism 50 by the material guiding member 10, a feeding hole 201 of the sand hopper is arranged below the filtering mechanism 50, screened sand enters the storage member 20, and precoated sand is ejected into a top sand silo of a core making machine along a material conveying pipeline 30 through compressed air.

Referring to fig. 3, according to an embodiment of the present disclosure, the filter mechanism 50 includes a hopper 501 and a filter element 502, the hopper 501 includes a first material port 511 and a second material port 512, the second material port 512 is connected to the feed port 201, and the filter element 502 is disposed between the first material port 511 and the second material port 512.

The filtering mechanism 50 can be used to filter the material before the material is stored in the storage member 20, which saves labor. Specifically, referring to fig. 1 to 3, the second material opening 512 of the hopper 501 is butted with the feed opening 201 of the material storage member 20, so that the first material opening 511 faces the material, the material is conveyed to the second material opening 512 through the first material opening 511 of the hopper 501, the caliber of the hopper 501 is gradually reduced along the conveying direction of the material, the conveying speed of the material is further increased, the material is filtered through the filtering member 502 between the first material opening 511 and the second material opening 512, the filtering of impurities or coarse materials in the material is avoided, the particle mesh number of the material in the material storage member 20 is controlled and limited, and the practicability in practical use is improved.

As an example, the filtering member 502 is a screen, a filtering surface of the screen is disposed at an angle with a conveying direction of the material in the hopper 501, the material can move along the first material port 511 to the second material port 512 by its own gravity, and preferably, the filtering member 502 can completely cover a cross section of the hopper 501, the cross section being a cross section of the hopper 501 perpendicular to the conveying direction, so as to improve filtering precision.

According to an embodiment of the present application, the vibration mechanism 60 is further included, the vibration mechanism 60 includes a first driving member 601 and a first control switch 602, the first driving member 601 is electrically connected to the first control switch 602, the filtering member 502 is mounted on the first driving member 601, and the first driving member 601 is used for driving the filtering member 502 to displace relative to the hopper 501.

Referring to fig. 3, the vibration mechanism 60 drives the filter element 502 to vibrate within a predetermined frequency range with respect to the hopper 501, so as to effectively prevent large particle impurities from being accumulated on the filter element 502, and to effectively prevent the filter element 502 from being blocked due to the accumulation of the materials on the filter element 502.

As an example, the start/stop state of the first driving member 601 is controlled by the first control switch 602, when the materials or the coarse materials need to be recovered and filtered, the first driving member 601 is started by the first control switch 602, so that the first driving member 601 drives the filtering member 502 to vibrate and displace within a set frequency relative to the hopper 501, when the materials enter the hopper 501 from the first material port 511, the materials contact the filtering member 502 to be filtered, the fine materials meeting the mesh number of the filtering member 502 are conveyed to the second material port 512, and enter the material storage member 20 from the material inlet 201 abutting against the second material port 512, thereby completing the material filtering process.

When the materials do not need to be recovered or the coarse materials are filtered, the first driving part 601 can be turned off through the first control switch 602, and then the filtering part 502 stops vibrating, so that the flexibility of the overall control of the conveying device is improved.

As an example, the first driving mechanism may employ a vibration motor, and the filter member 502 may employ a mesh screen, and is disposed between the first port 511 and the second port 512.

According to an embodiment of the present application, the sealing mechanism 70 further includes a sealing mechanism 70, the sealing mechanism 70 includes a sealing plate 701 and a second driving member 702, the sealing plate 701 is movably mounted on the second driving member 702 facing the feeding hole 201, and the second driving member 702 is configured to drive the sealing plate 701 to close or open the feeding hole 201. By way of example, when the sealing mechanism 70 faces the feeding hole 201 of the magazine 20, and materials are conveyed from the magazine 20 to the material conveying area 100, the sealing mechanism 70 seals the feeding hole 201 of the magazine 20, so that the magazine 20 and the material conveying cavity 200 in the material conveying pipeline 30 form a sealed cavity, and when the pneumatic driving mechanism 40 is started to introduce compressed air into the material conveying cavity 200, the driving force of the driving airflow in the material conveying cavity 200 is increased, and further, the material conveying cost is further reduced, and the material conveying efficiency is improved.

As an example, the second driving member 702 may be configured as a motor, and the motor drives the sealing plate 701 to rotate, so as to close or open the feeding hole 201.

According to an embodiment of the present application, the second driving member 702 includes a control valve 721 and a power member 722, the control valve 721 is electrically connected to the power member 722, and the sealing plate 701 is rotatably mounted to the power member 722. The second driving member 702 includes a control valve 721 and a power part 722 of the sealing plate 701 for driving the sealing plate 701 to rotate or displace, and may be configured as a motor or a hydraulic driving member, the control valve 721 may be configured as an electromagnetic valve, and the electromagnetic valve controls the start and stop of the motor, so as to control the sealing plate 701 to seal or open the feed port 201.

According to an embodiment of the present application, the pneumatic driving mechanism 40 includes an air pipe 401, a gas compressor 402 and a second control switch 403, one end of the air pipe 401 is connected to the gas compressor 402, the other end of the air pipe 401 is connected to the material storage member 20, and the second control switch 403 is disposed on the air pipe 401 and is used for controlling the on-off state of the air flow in the air pipe 401.

Referring to fig. 1 and 2, the air outlet of the air pipe 401 is disposed at the top of the material storage member 20, the second control valve 721 can be an electromagnetic valve, and the electromagnetic valve controls the on-off state of the air pipe 401, so as to control the on-off state of the driving air flow and improve the performance of the material conveying device

According to an embodiment of the present application, the pneumatic driving mechanism 40 further includes an air pressure detecting element 404, and the air pressure detecting element 404 is disposed on the air transmission pipeline 401 and electrically connected to the air compressor 402.

The air pressure detection piece 404 can be set as a compressed air valve, and the electromagnetic valve controls the air pressure of the air compressor 402 to the air transmission cavity, so that the control precision of the material is improved, and the use convenience is further improved.

According to an embodiment of the present application, the feeding pipe 30 comprises a plurality of connecting pipes 301, and the extending directions of adjacent connecting pipes 301 have a first included angle α, wherein α ≧ 90 °, and a transition section 302 with rounded corners is provided between adjacent connecting pipes 301.

Referring to fig. 1 and 2, the material conveying pipeline 30 extends from the material outlet 202 of the material storage member 20 to the material conveying area 100, and the extending direction can be changed by a plurality of connecting pipes 301 to meet different requirements of working environments, so as to further improve the convenience of use, a first included angle α is formed between adjacent connecting pipes 301, and the first included angle α is an obtuse angle, so that the conveying speed of the material in the material conveying pipeline 30 can be increased, and the material is prevented from being stacked at the bending position between two adjacent connecting pipes 301.

Furthermore, a transition section 302 can be arranged between the adjacent connecting pipes 301, the transition section 302 is a round corner, and the material conveying pipeline 30 with a round corner cross section further avoids the resistance of material conveying in the material conveying process, and further facilitates the adjustment of the material conveying direction.

According to an embodiment of the present application, the material guiding device 10 further includes a material guiding member 10, the material guiding member 10 includes a material conveying groove 101, a first material conveying opening 102 and a guiding wall 103, the guiding wall 103 encloses the material conveying groove 101, the material feeding opening 201 is in butt joint with the first material conveying opening 102, an inclined angle is formed between an extending direction of the guiding wall 103 and a plane where the first material conveying opening 102 is located, and an aperture of the material conveying groove 101 is gradually reduced from the extending direction of the guiding wall 103 to the direction of the first material conveying opening 102.

As an example, the material guiding member 10 is abutted against the material storage member 20, the pretreated material is conveyed through the material guiding member 10, the material conveying chute 101 has an opening, the opening of the material conveying chute 101 extends along the extending direction of the material conveying chute 101, and the opening of the material conveying chute 101 faces the position of material feeding, and is blocked into the material conveying chute 101 by the flow guiding wall 103, an inclination angle is formed between the extending direction of the flow guiding wall 103 and the plane where the first material conveying opening 102 is located, so that the material slides down to the position of the first material conveying opening 102 from the material conveying chute 101 according to the self gravity of the material conveying chute, and the user can store the pretreated material conveniently.

Further, when the coarse material is required to be treated, the material guiding member 10 can be controlled to convey the pretreated coarse material, the coarse material is conveyed to the filtering mechanism 50, the fine material is subjected to filtering treatment, the fine material is stored in the material storing member 20, when the fine material is required to be conveyed to the area 100 to be conveyed, the sealing mechanism 70 is started, the material conveying cavity 200 forms a sealed cavity, the gas driving mechanism is started, the fine material is conveyed to the material conveying pipeline 30 from the material outlet 202, and then the material is transferred to the area to be treated through the material conveying pipeline 30.

Referring to the embodiment and the labels shown in fig. 1 and fig. 2, the feeding device includes a storage member 20, a control valve 721, a feeding port 201, a first control switch 602, a filter member 502, a feeding pipeline 30, an air delivery pipeline 401, an air pressure detector 404, a second control switch 403, and an upper cover.

The collection end of guide spare 10 leans on below the shooting plate station, the delivery end of guide spare 10 leans on filtering piece 502, guide spare 10 relies on the support to support on subaerial, storage piece 20 is connected through the bolt with upper cover plate (not mark), feed inlet 201 welds in upper cover plate (not mark), filter piece 502 is located feed inlet 201 top, control valve 721 passes through bolted connection in feed inlet 201 side, defeated pipeline 30 passes through flange bolted connection in the bottom of storage piece 20, first control switch 602 controls filtering piece 502 and control valve 721, gas transmission pipeline 401 welds in upper cover plate (not mark), the air pressure in gas transmission pipeline 401 can be adjusted to second control switch 403, the circulation and the jam of compressed air are controlled to atmospheric pressure detector 404.

In one example, the work flow of the material conveying device is as follows:

(1) the scattered used sand is conveyed to the filtering piece 502 through the material guide piece 10;

(2) the air pressure sensor 404 is turned off, the first control switch 602 is turned on to operate the filter element 502, and the control valve 721 is controlled to open the shutter, so that sand passes through the vibratory screen and enters the reservoir 20.

(3) The first control switch 602 is closed to stop the operation of the filter element 502, and the control valve 721 is controlled to close the baffle plate, so that the storage member 20 forms a closed space.

(4) The air pressure is adjusted by the second control switch 403, the air pressure detector 404 is opened, the compressed air enters the storage member 20, and the precoated sand is conveyed by pressure along the conveying pipeline 30 to the sand silo at the top of the core making machine.

According to another aspect of the application, a feeding system is provided, which comprises a feeding device.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A feeding device is characterized by comprising:

the storage piece (20) comprises a feeding hole (201) and a discharging hole (202);

the material conveying device comprises a material conveying pipeline (30), wherein one end of the material conveying pipeline (30) is in butt joint with a material outlet (202), the other end of the material conveying pipeline (30) is in butt joint with a region (100) to be conveyed, and a material storage part (20) and the material conveying pipeline (30) form a material conveying cavity (200);

and the pneumatic driving mechanism (40), wherein the pneumatic driving mechanism (40) is in butt joint with the material conveying cavity (200).

2. The material conveying device according to claim 1, characterized by comprising a filtering mechanism (50), wherein the filtering mechanism (50) comprises a hopper (501) and a filtering member (502), the hopper (501) comprises a first material opening (511) and a second material opening (512), the second material opening (512) is in butt joint with the material inlet (201), and the filtering member (502) is arranged between the first material opening (511) and the second material opening (512).

3. The feeding device according to claim 2, further comprising a vibration mechanism (60), wherein the vibration mechanism (60) comprises a first driving member (601) and a first control switch (602), the first driving member (601) is electrically connected to the first control switch (602), the filter member (502) is mounted on the first driving member (601), and the first driving member (601) is used for driving the filter member (502) to displace relative to the hopper (501).

4. The feeding device according to claim 2, further comprising a sealing mechanism (70), wherein the sealing mechanism (70) comprises a sealing plate (701) and a second driving member (702), the sealing plate (701) is movably mounted on the second driving member (702) facing the feeding opening (201), and the second driving member (702) is used for driving the sealing plate (701) to close or open the feeding opening (201).

5. The delivery device of claim 4, wherein the second drive member (702) includes a control valve (721) and a motive member (722), the control valve (721) being electrically connected to the motive member (722), the sealing plate (701) being rotatably mounted to the motive member (722).

6. The material conveying device according to claim 1, wherein the pneumatic driving mechanism (40) comprises an air conveying pipeline (401), a gas compressor (402) and a second control switch (403), one end of the air conveying pipeline (401) is connected to the gas compressor (402), the other end of the air conveying pipeline (401) is connected to the material storage member (20), and the second control switch (403) is arranged on the air conveying pipeline (401) and used for controlling the on-off state of the air flow in the air conveying pipeline (401).

7. The feeding device according to claim 6, characterized in that the pneumatic driving mechanism (40) further comprises an air pressure detecting member (404), and the air pressure detecting member (404) is arranged on the air conveying pipeline (401) and is electrically connected with the air compressor (402).

8. Feeding device according to any one of claims 1-7, c h a r a c t e r i z e d in that the feeding duct (30) comprises a plurality of communicating connecting pipes (301), adjacent connecting pipes (301) extending at a first angle α, where α ≧ 90 °, and rounded transitions (302) are provided between adjacent connecting pipes (301).

9. The feeding device according to any one of claims 1 to 7, further comprising a feeding member (10), wherein the feeding member (10) comprises a feeding chute (101), a first feeding opening (102), and a flow guiding wall (103), the flow guiding wall (103) encloses the feeding chute (101), the feeding opening (201) is in butt joint with the first feeding opening (102), an inclination angle is formed between the extending direction of the flow guiding wall (103) and the plane of the first feeding opening (102), and the diameter of the feeding chute (101) gradually decreases from the extending direction of the flow guiding wall (103) to the direction of the first feeding opening (102).

10. A delivery system comprising a delivery device as claimed in any one of claims 1 to 9.

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