WO2021031341A1

WO2021031341A1 - Feeding device and particle preparation machine

Info

Publication number: WO2021031341A1
Application number: PCT/CN2019/114141
Authority: WO
Inventors: 严冬冬; 王一真; 胡永静
Original assignee: 江苏三一环境科技有限公司
Priority date: 2019-08-16
Filing date: 2019-10-29
Publication date: 2021-02-25
Also published as: CN110342184B; CN110342184A

Abstract

Provided are a feeding device and a particle preparation machine, relating to the field of biological particle machining. The feeding device (11) comprises a machine body (113), a conveying device (111) and a screening device (112), wherein the conveying device comprises a conveying belt (1111), a material storage member (1112) and a plurality of conveying rollers (1114), the conveying belt is in transmission fit with the plurality of conveying rollers to form an annular structure, the material storage member is connected to the conveying belt and is located inside the annular structure, and a first opening (1113) is provided in the material storage member. The screening device is provided with an input part, and the input part is arranged inside the annular structure. The feeding device has a feeding state where materials enter the material storage member through the first opening, and a discharging state where the materials enter the screening device through the first opening and the input part. The feeding device can effectively improve the working efficiency of particle preparation.

Description

Feeding device and pellet preparation machine

Cross references to related applications

This application claims the priority of the Chinese patent application with the application number CN201910756554.7 and the name "Feeding Device and Granule Preparation Machine" filed to the China Patent Office on August 16, 2019, the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of biological particle processing, in particular to a feeding device and a particle preparation machine.

Background technique

At present, in the preparation process of straw-based biomass fuel, the straw is usually collected from the farmland, packaged and transported to the pellet factory for pellet production, or the straw is manually put into the processing equipment, and the pellets are manually screened after the processing is completed. After being put back into the silo, the working efficiency of the whole pellet preparation process is low.

Summary of the invention

The purpose of this application includes, for example, providing a feeding device that can effectively improve the work efficiency of particle preparation.

The purpose of this application includes, for example, also providing a particle preparation machine including the aforementioned feeding device and having all the functions of the feeding device.

The embodiments of this application can be implemented as follows:

In the first aspect, an embodiment of the present application provides a feeding device, including a body, a conveying device, and a screening device. The conveying device includes a conveying belt, a storage member, and a plurality of conveying rollers. The conveying rollers are matched in transmission and form an annular structure, the storage piece is connected with the conveyor belt and is located inside the annular structure, and the storage piece is provided with a first opening;

The sieving device is provided with an input part, and the input part is arranged inside the ring structure;

The feeding device has a loading state where materials enter the storage member through the first opening, and a discharge state where the materials enter the screening device through the first opening and the input part.

In an alternative embodiment, the screening device includes a transmission shaft and a sieve cylinder, the transmission shaft is rotatably connected to the body around the axis of the transmission shaft, and the sidewall of the sieve cylinder is provided with The inside of the sieve cylinder is connected with the sieve holes, the sieve cylinder is sleeved on the transmission shaft and is relatively fixed, and the input part is arranged on the sieve cylinder.

In an alternative embodiment, the screen cylinder includes a fixed cylinder and a material receiving member, the fixed cylinder is sleeved on the transmission shaft and is relatively fixed, the screen hole is provided on the fixed cylinder, and the The material receiving member is fixedly connected to the body, the material receiving member is provided with a second opening and a third opening, the input part is the second opening, and the material receiving member is connected to the body through the third opening. The inside of the fixed cylinder is connected.

In an alternative embodiment, the transmission shaft is a screw, and both ends of the fixed barrel are respectively provided with a fourth opening and a fifth opening, and the fourth opening is close to the third opening relative to the fifth opening. Opening, the transmission shaft passes through the third opening, the fourth opening and the fifth opening in sequence, and is configured to pass the material in the material receiving part through the third opening and the fourth opening It is conveyed into the fixed cylinder, and the material is released from the fixed cylinder through the fifth opening.

In an optional embodiment, the screening device further includes a hopper, the hopper is connected to the machine body, and the hopper is located outside the sieve tube and arranged between the material receiving part and the The communicating part of the fixed cylinder is configured to receive the material screened out from the screen hole.

In an alternative embodiment, the screening device further includes a first elastic member, a receiving plane is provided on a side of the bottom wall of the retaining hopper close to the fixed cylinder, and one end of the first elastic member is The machine body is connected, the other end of the first elastic member is connected with the blocking hopper, and the first elastic member is configured to change the included angle between the bearing plane and the axis of the transmission shaft.

In an alternative embodiment, the conveying roller includes a roller body and edge portions arranged at both ends of the roller body, the conveying belt is connected to the edge portion, and the storage member is arranged on the two edges. Between the parts, the edge part protrudes relative to the roller body in a direction approaching the conveyor belt, so that there is a gap between the material storage member and the roller body.

In an alternative embodiment, the conveying device further includes a second elastic member, the conveying roller includes a first conveying roller and a second conveying roller, and the axial position of the first conveying roller is fixed relative to the machine body, The axis position of the second conveying roller is movable relative to the body, one end of the second elastic member is connected to the body, and the other end of the second elastic member is connected to the second conveying roller, so The second elastic member is configured to change the relative position between the second conveying roller and the first conveying roller to change the tension of the conveyor belt.

In an alternative embodiment, the number of the second elastic members is two, and the two second elastic members are both located inside the ring structure and arranged in an L shape.

In the second aspect, an embodiment of the present application provides a particle preparation machine, including the feeding device described in any one of the foregoing embodiments.

The beneficial effects of the embodiments of the present application include, for example:

The embodiment of the present application provides a feeding device, the storage member moves with the movement of the conveyor belt, the conveying path of the conveyor belt is an annular structure, and the orientation of the first opening changes with the movement of the conveyor belt, so that The feeding device is switched between the loading state and the unloading state. After the material enters the screening device, the screening device can screen the material. The feeding device closely links the conveying process and the screening process together, effectively improving The work efficiency of particle preparation is improved.

The embodiment of the present application also provides a particle preparation machine including the above-mentioned feeding device, which can effectively improve the working efficiency of particle preparation.

Description of the drawings

In order to more clearly describe the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a particle preparation machine provided by an embodiment of the application from a first perspective;

2 is a schematic structural diagram of the particle preparation machine provided by an embodiment of the application from a second perspective;

FIG. 3 is a schematic diagram of the structure of the material receiving part provided by an embodiment of the application;

FIG. 4 is a schematic diagram of the structure of the conveying roller provided by an embodiment of the application.

Icon: 1-particle preparation machine; 11-feeding device; 111-conveying device; 1111-conveyor belt; 1112-storage piece; 1113-first opening; 1114-conveying roller; 11141-first conveying roller; 11142-section Two conveying rollers; 11143-roller body; 11144-edge; 1115-second elastic member; 112-screening device; 1121-drive shaft; 1122-sieve tube; 11221-fixed tube; 11222-receiving part; 11223- Second opening; 11224-third opening; 11225-fourth opening; 11226-fifth opening; 1123-retaining hopper; 11231-receiving plane; 1124-first elastic member; 113-machine body; 12-recovery device; 13- Processing device; 14- conveying device.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments These are a part of the embodiments of this application, but not all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

It should be noted that similar reference numerals and letters indicate similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, or It is the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation , So it cannot be understood as a restriction on this application.

In addition, if the terms "first" and "second" appear, they are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

It should be noted that, in the case of no conflict, the features in the embodiments of the present application can be combined with each other.

1 and 2, this embodiment provides a particle preparation machine 1, the particle preparation machine 1 includes a recovery device 12, a processing device 13, and a feeding device 11, the recovery device 12 is configured to collect materials on the ground , And then transported to the processing device 13, the processing device 13 processes the materials to form granular materials, and then conveys the granular materials to the preset area, and the feeding device 11 can transport and screen the materials in the preset area .

It should be noted that, in this embodiment, the recovery device 12 can use a structure in which the drive shaft 1121 drives the rotation of the scraper to recover materials, and the processing device 13 can use two opposite processing rollers to process the materials, and then output and recover the materials. The specific structures of the device 12 and the processing device 13 can refer to the structure in the prior art, and this embodiment focuses on the feeding device 11.

Specifically, please refer to Figures 1 and 2. This embodiment also provides a feeding device 11, including a body 113, a conveying device 111, and a screening device 112. The conveying device 111 includes a conveyor belt 1111, a storage piece 1112, and multiple There are two conveying rollers 1114, the conveying belt 1111 is matched with a plurality of conveying rollers 1114 and forms an annular structure. The storage piece 1112 is connected with the conveyor belt 1111 and is located inside the annular structure. The storage piece 1112 is provided with a first opening 1113. The sieving device 112 is provided with an input part, and the input part is arranged inside the ring structure. The feeding device 11 has a loading state in which materials enter the storage member 1112 through the first opening 1113 and a discharge state in which the materials enter the screening device 112 through the first opening 1113 and the input part.

It can be understood that, after the processing device 13 transports the granular material to the preset area, the storage member 1112 is driven by the conveyor belt 1111 to reach the preset area. With the movement of the conveyor belt 1111, the material storage member 1112 and the material move relative to each other, and the material enters the material storage member 1112 through the first opening 1113 to complete the feeding operation.

It should be noted that because the conveyor belt 1111 forms an annular structure, the orientation of the first opening 1113 of the first opening 1113 will change when the storage member 1112 is driven by the conveyor belt 1111. Specifically, in this embodiment, the storage member 1112 moves When reaching the upper end of the ring structure, the first opening 1113 faces downwards. At this time, the material enters the screening device 112 from the first opening 1113 through the input part of the screening device 112 to complete the unloading operation, and then the screening device 112 treats the material To filter. It is worth noting that the orientation words “up” and “down” expressing the meaning of orientation in this embodiment are based on the premise that the particle preparation machine 1 is in the state of FIG. 1, and the following will not be explained one by one.

It can be understood that the feeding device 11 closely combines the conveying process and the screening process of the material, and effectively improves the working efficiency of particle preparation.

It should be noted that in actual use, due to the heavy weight of the processing device 13 and vibrations during processing, the processing device 13 is set in the lower half of the pellet preparation machine 1 to improve the processing efficiency. Stability, therefore, in this embodiment, the conveying device 111 can convey the material below the machine body 113 to the upper side of the machine body 113 to play a lifting effect.

In addition, in this embodiment, the input part of the screening device 112 is located inside the ring structure, which makes full use of the space, making the structure of the conveying device 111 and the screening device 112 more compact and occupying a small space.

It should be noted that, in this embodiment, the hopper with a bell mouth is selected for the storage member 1112, and the big end of the bell mouth is the above-mentioned first opening 1113. It is understandable that the hopper with bell mouth can effectively improve the upper The efficiency of loading and unloading. Of course, in other embodiments, the storage member 1112 may be an object having a containing cavity and an opening communicating with the containing cavity.

It should be noted that, please refer to Figures 1 and 2. In this embodiment, the screening device 112 selects the cooperation of the transmission shaft 1121 and the screen cylinder 1122 to achieve the screening function. Specifically, the screening device 112 includes a transmission shaft 1121 and The screen cylinder 1122, the transmission shaft 1121 is rotatably connected to the body 113 around the axis of the transmission shaft 1121, the side wall of the screen cylinder 1122 is provided with sieve holes communicating with the inside of the screen cylinder 1122, and the screen cylinder 1122 is sleeved on the transmission shaft 1121 and Relatively fixed, the input part is arranged on the screen cylinder 1122.

It is understandable that after the material enters the screen cylinder 1122 from the input part, the transmission shaft 1121 rotates around its own axis, and the screen cylinder 1122 follows the transmission shaft 1121 to drive, and the material inside the screen cylinder 1122 will be close to the screen cylinder 1122 due to centrifugal force. On the inner wall of the sieve, the smaller size will be sieved out from the sieve holes, and the materials that meet the requirements will remain inside the sieve cylinder 1122, thus completing the screening operation.

It should be noted that in actual use, the size of the screen holes can be adjusted appropriately according to the requirements for the size of qualified materials, and the shape of the screen holes can also be round or rectangular.

It should be noted that in other embodiments, the screening device 112 can also select a motor to drive a screen basket with screen holes to perform screening operations. The input part is provided at the opening of the screen basket, and the output shaft of the motor is connected to the screen through a crank and rocker mechanism. The screen basket is connected, and the motor can drive the screen basket to reciprocate after starting, so as to realize the screening of materials. The screening device 112 may also include a screen and a containing box. The input part is arranged at the opening of the containing box, and the screen is arranged on the input part. When the material enters the screening device 112, the screen screens the material. .

Please refer to Figures 1 to 3, the screen cylinder 1122 includes a fixed cylinder 11221 and a material receiving part 11222. The fixed cylinder 11221 is sleeved on the transmission shaft 1121 and is relatively fixed. The screen hole is set on the fixed cylinder 11221. The material receiving part 11222 is connected to the body 113 is fixedly connected, the material receiving member 11222 is provided with a second opening 11223 and a third opening 11224, the input part is a second opening 11223, and the material receiving member 11222 communicates with the inside of the fixed cylinder 11221 through the third opening 11224.

It is understandable that, in this embodiment, the material receiving member 11222 does not rotate with the rotation of the transmission shaft 1121. Therefore, the orientation of the second opening 11223 of the material receiving member 11222 will not change, and the receiving member 11222 can continue to receive from the storage. The material output by the material 1112 effectively improves the conveying efficiency of the material.

The material entering the material receiving part 11222 will enter the inside of the fixed cylinder 11221 through the third opening 11224. The fixed cylinder 11221 follows the rotation of the drive shaft 1121 to screen the materials.

It should be noted that, in this embodiment, the transmission shaft 1121 can bring animal material from the material receiving part 11222 into the inside of the fixed cylinder 11221 during the rotation. Specifically, the transmission shaft 1121 is a screw, and the two fixed cylinders 11221 The ends are respectively provided with a fourth opening 11225 and a fifth opening 11226. The fourth opening 11225 is close to the third opening 11224 relative to the fifth opening 11226. The transmission shaft 1121 passes through the third opening 11224, the fourth opening 11225 and the fifth opening 11226 in turn , Is configured to transport the material in the material receiving member 11222 into the fixed cylinder 11221 through the third opening 11224 and the fourth opening 11225, and make the material escape from the fixed cylinder 11221 through the fifth opening 11226.

It is understandable that when the screw-shaped transmission shaft 1121 rotates relative to the body 113, it will agitate the material in the material receiving member 11222, and at the same time move the material along the axis of the transmission shaft 1121, and the material will pass through the third opening 11224. And the fourth opening 11225 enters into the fixed cylinder 11221. In the fixed cylinder 11221, the materials will always move along the axis of the drive shaft 1121 while being screened. The qualified materials that have not been screened out of the screen pass through the fifth opening 11226. Detach from the fixed cylinder 11221.

It should be noted that in other embodiments, the fixed cylinder 11221 can also be arranged obliquely with respect to the material receiving member 11222, and the material in the material receiving member 11222 can enter the fixed cylinder 11221 under the action of gravity.

1, in this embodiment, the feeding device 11 further includes a conveying device 14. The conveying device 14 adopts a structure in which a conveying belt and a conveying roller are in cooperation with each other. The transmission belt is configured to receive the material output from the fifth opening 11226, and then the material Send to the storage area.

1 and 2, in this embodiment, the screening device 112 further includes a blocking hopper 1123, the blocking hopper 1123 is connected to the body 113, the blocking hopper 1123 is located outside the screen cylinder 1122 and is arranged on the receiving part 11222 and the fixed The communicating part of the cylinder 11221 is configured to receive the materials sifted out from the screen holes.

It should be noted that in this embodiment, one end of the blocking hopper 1123 extends to the processing device 13, and the unqualified materials screened out from the screen holes will pass through the blocking hopper 1123 and re-enter the processing device 13 for reprocessing. The method can make full use of materials and reduce the waste of materials.

It should be noted that in this embodiment, the blocking hopper 1123 is located at the connection between the material receiving part 11222 and the fixed cylinder 11221, which can effectively accept the materials that have just entered the fixed cylinder 11221 and have been screened out. It is understandable that, After screening by the fixed cylinder 11221, the unqualified materials in the material output from the fifth opening 11226 are significantly reduced compared to the unqualified materials in the material just input into the fixed cylinder 11221 from the third opening 11224. Therefore, in this embodiment, the hopper 1123 is blocked. Set at the connection between the material receiving part 11222 and the fixed cylinder 11221 not only can effectively receive most of the materials that are screened out, reduce the waste of materials, but also effectively reduce the size of the hopper 1123 and save the occupied space , Saving manufacturing costs.

Of course, in other embodiments, one end of the retaining hopper 1123 can also be extended to another storage bucket, and the screened materials are introduced into the storage bucket, and then processed collectively.

It should be noted that in this embodiment, the opening of the hopper 1123 is also a bell mouth, which can receive as much materials as possible.

1 and 2, in this embodiment, the screening device 112 further includes a first elastic member 1124. The bottom wall of the blocking hopper 1123 is provided with a receiving plane 11231 on the side close to the fixed cylinder 11221. The first elastic member 1124 One end of the first elastic member 1124 is connected to the body 113, and the other end of the first elastic member 1124 is connected to the hopper 1123. The first elastic member 1124 is configured to change the angle between the bearing plane 11231 and the axis of the transmission shaft 1121.

It should be noted that in this embodiment, the first elastic member 1124 is selected as a spring. It is understandable that the staff can adjust the bearing plane 11231 and the transmission shaft 1121 by changing the degree of compression or extension of the first elastic member 1124. The angle between the axes of the two can make the hopper 1123 effectively receive the screened materials according to the actual situation. In other embodiments, the first elastic member 1124 may also be a rubber band or rubber band.

Please refer to Figure 1, Figure 2 and Figure 4, in this embodiment, the conveying roller 1114 includes a roller body 11143 and edge portions 11144 arranged at both ends of the roller body 11143, the conveyor belt 1111 is connected with the edge portion 11144, and the material storage 1112 is provided Between the two edge portions 11144, the edge portion 11144 protrudes toward the conveyor belt 1111 relative to the roller body 11143, so that there is a gap between the material storage member 1112 and the roller body 11143.

It should be noted that in this embodiment, the roller body 11143 and the edge portion 11144 are both cylindrical structures, the axes of the roller body 11143 and the edge portion 11144 are collinear, and the radius of the edge portion 11144 is larger than the radius of the roller body 11143. After the belt 1111 is sleeved on the edge portion 11144, a accommodating space configured to accommodate the material storage 1112 is formed between the conveyor belt 1111 and the roller body 11143. Of course, in actual use, the staff can according to the actual storage 1112 The size adjusts the size of the accommodation space.

It should be noted that in other embodiments, the edge portion 11144 may also have a semi-cylindrical structure, and the edge portion 11144 protrudes toward the conveyor belt 1111 relative to the roller body 11143.

2, the conveying device 111 further includes a second elastic member 1115. The conveying roller 1114 includes a first conveying roller 11141 and a second conveying roller 11142. The axial position of the first conveying roller 11141 is fixed relative to the body 113, and the second conveying roller The axis position of 11142 is movable relative to the body 113. One end of the second elastic member 1115 is connected to the body 113, and the other end of the second elastic member 1115 is connected to the second conveying roller 11142. The second elastic member 1115 is configured to change the second conveying The relative position between the roller 11142 and the first conveying roller 11141 to change the tension of the conveying belt 1111.

It can be understood that, in this embodiment, the second conveying roller 11142 can not only rotate relative to the body 113 but also translates relative to the body 113, while the first conveying roller 11141 can only rotate relative to the body 113.

It should be noted that in this embodiment, the second elastic member 1115 is selected as a spring. It is understandable that the staff can adjust the second conveying roller 11142 and the second conveying roller 11142 by changing the degree of compression or stretching of the second elastic member 1115. The relative position between a conveying roller 11141 changes the tension of the conveying belt 1111 so that the conveying belt 1111 is in an optimal state of motion. In other embodiments, the second elastic member 1115 can also be a rubber band or a rubber band.

Specifically, in this embodiment, the number of the second elastic members 1115 is two, and the two second elastic members 1115 are both located inside the ring structure and arranged in an L shape. It is understandable that this arrangement can adjust the movement of the second conveying roller 11142 in different directions and better adjust the tension of the conveying belt 1111.

In summary, the working principle of the particle preparation machine 1 provided in this embodiment is:

The recycling device 12 collects the materials on the ground and transports them to the processing device 13. The processing device 13 processes the materials to form granules, and then outputs the granular materials to a preset area. The conveyor belt 1111 drives the storage parts 1112 to move. When the storage member 1112 moves to the preset area, the material enters the storage member 1112 from the first opening 1113. After the storage member 1112 follows the conveyor belt 1111 and is transported to the upper part of the ring structure, the first opening 1113 faces downwards. The function enters the material receiving part 11222 through the second opening 11223, the transmission shaft 1121 rotates relative to the body 113, and under the action of the transmission shaft 1121, drives the material in the material receiving part 11222 to enter through the third opening 11224 and the fourth opening 11225 Go to the inside of the fixed cylinder 11221, then exit the fixed cylinder 11221 through the fifth opening 11226, enter the conveying device 14, and the conveying device 14 conveys the material to the storage area.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, All should be covered in the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A feeding device is characterized in that it comprises a body, a conveying device and a screening device. The conveying device includes a conveying belt, a material storage member and a plurality of conveying rollers. Forming an annular structure, the storage member is connected to the conveyor belt and is located inside the annular structure, and a first opening is provided on the storage member;

The sieving device is provided with an input part, and the input part is arranged inside the ring structure;

The feeding device has a loading state where materials enter the storage member through the first opening, and a discharge state where the materials enter the screening device through the first opening and the input part.
The feeding device according to claim 1, wherein the screening device comprises a transmission shaft and a screen cylinder, the transmission shaft is rotatably connected to the body about the axis of the transmission shaft, and the screen cylinder The side wall is provided with sieve holes communicating with the inside of the sieve cylinder, the sieve cylinder is sleeved on the transmission shaft and is relatively fixed, and the input part is arranged on the sieve cylinder.
The feeding device according to claim 2, wherein the sieve cylinder comprises a fixed cylinder and a material receiving member, the fixed cylinder is sleeved on the transmission shaft and is relatively fixed, and the sieve holes are arranged on the On the fixed cylinder, the material receiving member is fixedly connected to the body, the material receiving member is provided with a second opening and a third opening, the input part is the second opening, and the material receiving member passes through the The third opening communicates with the inside of the fixed cylinder.
The feeding device according to claim 3, wherein the transmission shaft is a screw, and both ends of the fixed barrel are respectively provided with a fourth opening and a fifth opening, and the fourth opening is opposite to the fifth opening. The opening is close to the third opening, and the transmission shaft sequentially passes through the third opening, the fourth opening, and the fifth opening, and is configured to pass the material in the material receiving part through the third opening And the fourth opening is conveyed into the fixed cylinder, and the material is released from the fixed cylinder through the fifth opening.
The feeding device according to claim 3, wherein the screening device further comprises a blocking hopper, the blocking hopper is connected to the machine body, and the blocking hopper is located outside the screen cylinder and is arranged on the The connecting place between the material receiving part and the fixed cylinder is configured to receive the materials screened out from the screen holes.
The feeding device according to claim 5, wherein the screening device further comprises a first elastic member, a receiving plane is provided on a side of the bottom wall of the retaining hopper close to the fixed cylinder, and the first One end of the elastic member is connected to the body, the other end of the first elastic member is connected to the blocking hopper, and the first elastic member is configured to change the clamping between the bearing plane and the axis of the transmission shaft angle.
The feeding device according to any one of claims 1-6, wherein the conveying roller comprises a roller body and edge portions provided at both ends of the roller body, and the conveying belt is connected with the edge portion, and The storage member is disposed between the two edge portions, and the edge portion protrudes toward the conveyor belt relative to the roller body, so that there is a gap between the storage member and the roller body. gap.
The feeding device according to any one of claims 1 to 6, wherein the conveying device further comprises a second elastic member, the conveying roller includes a first conveying roller and a second conveying roller, and the first conveying roller The axis position of the roller is fixed relative to the body, the axis position of the second conveying roller is movable relative to the body, one end of the second elastic member is connected to the body, and the other of the second elastic member One end is connected to the second conveying roller, and the second elastic member is configured to change the relative position between the second conveying roller and the first conveying roller to change the tension of the conveyor belt.
The feeding device according to claim 8, wherein the number of the second elastic members is two, and the two second elastic members are both located inside the ring structure and arranged in an L shape.
A particle preparation machine, characterized by comprising the feeding device according to any one of claims 1-9.