CN219858635U

CN219858635U - Raw material stacking device with dustproof function

Info

Publication number: CN219858635U
Application number: CN202321283760.9U
Authority: CN
Inventors: 张燃
Original assignee: Tianjin Heyuan Weiye Lightweight Building Materials Co ltd
Current assignee: Tianjin Heyuan Weiye Lightweight Building Materials Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-20
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses a raw material stacking device with a dustproof function, which comprises a main body assembly, a dust-proof device and a dust-proof device, wherein the main body assembly comprises a box body, a feed hopper and a conveying piece, the feed hopper is arranged at the top of the box body, and the conveying piece is arranged in the box body; the dust removal assembly is arranged on the main body assembly and comprises a fixed pipe, a transmission pipe, an air inlet box, a fan, a first dust-proof piece, a second dust-proof piece, a limiting piece, a first positioning piece and a second positioning piece, wherein the fixed pipe is fixed on one side of the box body, the transmission pipe is communicated with one side of the fixed pipe, the air inlet box is fixed on the side face of the box body, and the fan is arranged at the bottom of the air inlet box. The utility model has the beneficial effects that: through the setting of dust removal subassembly, when throwing into stacking the device to the dust raw materials, collect the dust that flies to prevent that dust raw materials from flying everywhere and causing the influence to the surrounding environment, and then be favorable to the staff to pile up the operation to the raw materials.

Description

Raw material stacking device with dustproof function

Technical Field

The utility model relates to the technical field of raw material storage, in particular to a raw material storage device with a dustproof function.

Background

The raw materials are materials which can be made into products through processing and manufacturing, such as mineral products and agricultural products, the price of the raw materials is often standard price or according to quality arguments, different distribution ways and storage and transportation means are selected according to different raw material products and purchase quantity, if the raw materials are bulk ordered, a direct supply method can be adopted, so that circulation links are reduced, the operating range is expanded, the net points are increased to meet the production needs of the few scattered users, the raw materials of the products need to be stacked through a stacking device in the storage process, the quality of the raw materials is prevented from being influenced, when the dust raw materials are stacked, the dust raw materials are scattered from the feeding position to the outside of the stacking device, so that pollution is caused to the surrounding environment, stacking operation is not facilitated for workers, collection of the dust raw materials is not convenient, and inconvenience is brought to the raw material stacking operation.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or problems occurring in the conventional raw material stocking apparatus having a dust-proof function.

Therefore, the utility model aims to solve the problems that when the dust raw materials are piled up, the dust raw materials can fly to the outside of the piling device from the feeding position, so that the surrounding environment is polluted, the piling operation is not facilitated for workers, the dust raw materials are not convenient to collect, and the raw material piling operation is not facilitated.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a raw materials stockpiling device with dustproof function, its includes, main part subassembly, including box, feeder hopper and conveying piece, the feeder hopper set up in the box top, the conveying piece set up in the box;

the dust removal assembly is arranged on the main body assembly and comprises a fixing tube, a transmission tube, an air inlet box, a fan, a first dust-proof piece, a second dust-proof piece, a limiting piece, a first positioning piece and a second positioning piece, wherein the fixing tube is fixed on one side of the box body, the transmission tube is communicated with one side of the fixing tube, the air inlet box is fixed on the side face of the box body, the fan is arranged at the bottom of the air inlet box, the first dust-proof piece and the second dust-proof piece are both arranged in the air inlet box, the limiting piece is positioned in the first dust-proof piece, the first positioning piece is positioned on one side of the air inlet box, and the second positioning piece is arranged at the bottom of the air inlet box.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the conveying part comprises a motor, a conveying pipe and an auger, wherein the motor is fixed on one side of the box body, the conveying pipe is fixed in the box body, the auger is rotationally connected in the conveying pipe, and the output end of the motor is fixed with the end part of the auger.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the conveying piece further comprises a side plate, and the side plate is fixed to the inner bottom wall of the box body.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the first dustproof piece comprises a fixing frame and a first filter screen, wherein the fixing frame is fixed on the inner bottom wall of the air inlet box, and the first filter screen is movably connected in the fixing frame.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the first dustproof piece further comprises a locating rack and a grid, wherein the locating rack is fixed on the inner bottom wall of the air inlet box, and the grid is movably connected in the locating rack.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the second dustproof piece comprises a baffle, a mounting frame and a second filter screen, wherein the baffle is rotationally connected in the mounting frame, the mounting frame is fixed in the air inlet box, and the second filter screen is movably connected in the mounting frame.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the second dustproof piece further comprises a first spring, an arc-shaped pipe and a connecting column, one end of the first spring is fixed with the baffle, the other end of the first spring is fixed with the inner wall of the air inlet box, the arc-shaped pipe is fixed in the air inlet box, and the connecting column is movably connected in the arc-shaped pipe.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the limiting piece comprises a sleeve, a second spring, a limiting bead and a fixing seat, wherein the sleeve is fixed in the first filter screen, the second spring is arranged in the sleeve, the limiting bead is fixed at one end of the second spring, and the fixing seat is fixed at the inner side of the grille.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the first locating piece comprises a fixed box, a third spring, a movable block, a locating block and a first pulling block, wherein the fixed box is fixed on one side of the air inlet box, the third spring is arranged in the fixed box, the movable block is movably connected in the fixed box, the locating block is fixed on one side of the movable block, and the first pulling block is arranged on the side face of the movable block.

As a preferable scheme of the raw material stacking device with the dustproof function, the utility model comprises the following steps: the second locating piece comprises a locating box, a fourth spring, a sliding block, a limiting block and a second pulling block, wherein the locating box is fixed at the bottom of the air inlet box, the fourth spring is arranged in the locating box, the sliding block is fixed at one end of the fourth spring, the limiting block is fixed at one side of the sliding block, and the second pulling block is arranged at the bottom of the sliding block.

The utility model has the beneficial effects that: through the setting of dust removal subassembly, when throwing into stacking the device to the dust raw materials, collect the dust that flies to prevent that dust raw materials from flying everywhere and causing the influence to the surrounding environment, and then be favorable to the staff to pile up the operation to the raw materials.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a block diagram of a raw material stacking apparatus having a dust-proof function.

Fig. 2 is another view of the housing and the intake box of the raw material stacking device with dust-proof function.

Fig. 3 is an enlarged view of the raw material stacking device having a dust-proof function at a position a in fig. 2.

Fig. 4 is an enlarged view of the construction of the raw material stacking apparatus having a dust-proof function at B in fig. 2.

Fig. 5 is a sectional view of a casing of the raw material stacking apparatus having a dust-proof function.

Fig. 6 is a sectional view of the air intake box of the raw material stacking device with dust-proof function.

Fig. 7 is a block diagram of a fixed case of the raw material stacking apparatus having a dust-proof function.

Fig. 8 is a cross-sectional view of a holder and a grid of the raw material stacking apparatus having a dust-proof function.

Fig. 9 is an enlarged view of the construction of fig. 8C of the raw material stacking device with dust-proof function.

Fig. 10 is a sectional view of a positioning box of the raw material stacking device with dust-proof function.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 10, in a first embodiment of the present utility model, a raw material stacking device with a dustproof function is provided, and the raw material stacking device with a dustproof function includes a main body assembly 100 and a dust removing assembly 200, and is convenient to collect dust generated during raw material stacking by matching the main body assembly 100 and the dust removing assembly 200, so as to prevent dust from scattering around and polluting the surrounding environment.

Specifically, the main body assembly 100 includes a case 101, a feed hopper 102, and a conveying member 103, the feed hopper 102 is disposed on the top of the case 101, and the conveying member 103 is disposed in the case 101.

The feeding hopper 102 is used for throwing raw materials into the box body 101, so that the raw materials are stacked through the box body 101, and the raw materials in the box body 101 are conveniently conveyed through the arrangement of the conveying piece 103, so that the loading of the raw materials by workers is facilitated.

Specifically, the dust removing assembly 200 is disposed on the main body assembly 100, and includes a fixing tube 201, a transmission tube 202, an air inlet box 203, a fan 204, a first dust-proof member 205, a second dust-proof member 206, a limiting member 207, a first positioning member 208 and a second positioning member 209, wherein the fixing tube 201 is fixed on one side of the box body 101, the transmission tube 202 is communicated with one side of the fixing tube 201, the air inlet box 203 is fixed on the side of the box body 101, the fan 204 is disposed at the bottom of the air inlet box 203, the first dust-proof member 205 and the second dust-proof member 206 are both disposed in the air inlet box 203, the limiting member 207 is disposed in the first dust-proof member 205, the first positioning member 208 is disposed on one side of the air inlet box 203, and the second positioning member 209 is disposed at the bottom of the air inlet box 203.

The through groove is offered on one side of the inner wall of the box body 101, and the fixed pipe 201 is communicated with the cavity of the box body 101 through the through groove, when the raw material is put into the box body 101, the fan 204 is started at first, the top of the fan 204 is communicated with the air inlet box 203, air in the air inlet box 203 is discharged, negative pressure is formed in the air inlet box 203, then dust generated when the raw material is put into the box body 101 through the fixed pipe 201 and the through groove is conveyed into the conveying pipe 202, the dust is conveyed into the air inlet box 203 through the first dust-proof piece 205 through the conveying pipe 202, the dust is filtered at the moment, and is attached to the first dust-proof piece 205, the air flow is discharged through the fan 204, so that the situation that the dust is scattered everywhere can be prevented, the dust is blocked by the second dust-proof piece 206, the dust can be cleaned when the first dust-proof piece 205 is blocked, the dust in the air is filtered, staff can clean the dust on the first dust-proof piece 205 for a long time, the dust is returned, the dust is conveyed into the conveying pipe 202 through the first positioning piece 208, the dust-proof piece 205 is conveyed into the air inlet box 203, the first dust-proof piece 205 is kept by the first positioning piece, the second dust-proof piece is kept by the second positioning piece 206, the dust-proof piece is convenient to clean by the second positioning piece, and the dust-proof piece is kept by the second positioning piece 206, and the dust can be cleaned by the second positioning piece, and the dust can be cleaned, and the dust can be conveniently and the dust can be cleaned by the dust can be conveniently and easily cleaned by the dust can be cleaned.

Example 2

Referring to fig. 2 to 7, a second embodiment of the present utility model is based on the previous embodiment.

Specifically, the conveying member 103 includes a motor 103a, a conveying pipe 103b and an auger 103c, the motor 103a is fixed on one side of the box 101, the conveying pipe 103b is fixed in the box 101, the auger 103c is rotatably connected in the conveying pipe 103b, and an output end of the motor 103a is fixed with an end of the auger 103 c.

The motor 103a is used for driving the auger 103c to rotate, and the auger 103c discharges raw materials in the box 101 through the conveying pipe 103b, so that workers can load the raw materials conveniently, the top of the conveying pipe 103b is communicated with a cavity of the box 101, and the raw materials enter the conveying pipe 103b and are discharged through the auger 103 c.

Specifically, the conveying member 103 further includes a side plate 103d, and the side plate 103d is fixed to the inner bottom wall of the casing 101.

The two side plates 103d are arranged in the box body 101 in an inclined mode, and the side plates 103d are used for concentrating raw materials in the box body 101 so that the raw materials slide into the conveying pipe 103b, and accordingly the raw materials are discharged.

Specifically, the first dust-proof component 205 includes a fixing frame 205a and a first filter screen 205b, the fixing frame 205a is fixed on the inner bottom wall of the air inlet box 203, and the first filter screen 205b is movably connected in the fixing frame 205 a.

Through mount 205a for install first filter screen 205b and second dust keeper 206, be arranged in carrying to the inside air of inlet box 203 dust filtration through the setting of first filter screen 205b, and then prevent that raw materials dust from scattering everywhere and polluting surrounding environment.

Specifically, the first dust-proof member 205 further includes a positioning frame 205c and a grille 205d, the positioning frame 205c is fixed to the inner bottom wall of the air inlet box 203, and the grille 205d is movably connected to the positioning frame 205 c.

The middle part of the positioning frame 205c is hollowed out, four frames are transversely arranged, the four frames are equidistantly fixed on the inner bottom wall of the positioning frame 205c, the grids 205d are provided with five grids, one sides of the five grids 205d are separated, the other sides of the five grids 205d are mutually connected, the five grids 205d are positioned at intervals of the four frames, when the first filter screen 205b is arranged in the fixing frame 205a, one side of the grid 205d is positioned outside the positioning frame 205c, so that air enters the positioning frame 205c and dust in the air is filtered through the first filter screen 205b, when the first filter screen 205b is blocked, the suction force of the fan 204 discharges the air can enable the second dust-proof piece 206 to be opened and dust in the air is filtered, then a worker can release the limit of the first filter screen 205b through the first positioning piece 208, then pulls the first filter screen 205b out of the fixing frame 205a, and simultaneously the first filter screen 205b is driven by the limit piece 207 to move, and the grids 205d are overlapped with the frames on the positioning frame 205c, so that the first filter screen 205b can be continuously pulled out of the first filter screen 205b from the first filter screen 203.

Example 3

Referring to fig. 1 to 10, a third embodiment of the present utility model is based on the first two embodiments.

Specifically, the second dust-proof member 206 includes a baffle 206a, a mounting frame 206b, and a second filter screen 206c, the baffle 206a is rotatably connected to the mounting frame 205a, the mounting frame 206b is fixed to the air inlet box 203, and the second filter screen 206c is movably connected to the mounting frame 206 b.

The mounting groove has been seted up to mount 205a one side, and baffle 206a rotates through the pivot to be connected in the mounting groove, through baffle 206 a's setting for seal the mounting groove, and make the air filter through first filter screen 205b preferentially, when first filter screen 205b blocks up, the suction of fan 204 then can make baffle 206a open, and make the air discharge after the filtration of second filter screen 206c, with this follow-up dismantlement clearance to first filter screen 205b of being convenient for.

Specifically, the second dust-proof member 206 further includes a first spring 206d, an arc tube 206e, and a connection post 206f, wherein one end of the first spring 206d is fixed to the baffle 206a, the other end is fixed to the inner wall of the air intake box 203, the arc tube 206e is fixed to the air intake box 203, and the connection post 206f is movably connected to the arc tube 206 e.

Through the arrangement of the first spring 206d, the baffle 206a is pushed, so that the baffle 206a cannot easily move out of the mounting groove, the suction force of the exhaust of the fan 204 is greater than the expansion force of the first spring 206d, and the generated suction force can enable the baffle 206a to move out of the mounting groove, and the baffle 206a is limited through the arc-shaped pipe 206e and the connecting column 206f, so that the baffle 206a is more stable in moving.

Specifically, the limiting member 207 includes a sleeve 207a, a second spring 207b, a limiting bead 207c and a fixing base 207d, wherein the sleeve 207a is fixed in the first filter 205b, the second spring 207b is disposed in the sleeve 207a, the limiting bead 207c is fixed at one end of the second spring 207b, and the fixing base 207d is fixed at the inner side of the grille 205 d.

The outside of sleeve 207a is fixed with the inner wall of first filter screen 205b, second spring 207b one end is fixed with sleeve 207a inner wall, the other end is fixed with spacing pearl 207c, make spacing pearl 207c one side be in fixing base 207d through the thrust of second spring 207b, so can drive sleeve 207a when first filter screen 205b moves, drive second spring 207b and spacing pearl 207c through sleeve 207a and remove, and make spacing pearl 207c drive fixing base 207d and remove, drive grid 205d through fixing base 207d, and make grid 205d coincide with the frame on the locating rack 205c, and then make the air can not get into in the locating rack 205c, and then be convenient for demolish and clear up first filter screen 205b, and prevent unfiltered air from being discharged.

Specifically, the first positioning member 208 includes a fixed box 208a, a third spring 208b, a movable block 208c, a positioning block 208d, and a first pull block 208e, where the fixed box 208a is fixed on one side of the air inlet box 203, the third spring 208b is disposed in the fixed box 208a, the movable block 208c is movably connected in the fixed box 208a, the positioning block 208d is fixed on one side of the movable block 208c, and the first pull block 208e is disposed on the side of the movable block 208 c.

The fixed box 208a is used for installing the third spring 208b and the movable block 208c, the third spring 208b is used for pushing the positioning block 208d, and the positioning block 208d is used for limiting the first filter screen 205b, so that the first filter screen 205b cannot be moved out of the fixed frame 205a, when the first filter screen 205b is dismounted, the first pull block 208e is pulled first, the movable block 208c is driven to move by the first pull block 208e, the positioning block 208d is driven to move by the movable block 208c, the limiting of the first filter screen 205b is released by the positioning block 208d, and the first filter screen 205b can be dismounted for cleaning.

The second positioning piece 209 includes a positioning box 209a, a fourth spring 209b, a sliding block 209c, a limiting block 209d and a second pulling block 209e, wherein the positioning box 209a is fixed at the bottom of the air inlet box 203, the fourth spring 209b is arranged in the positioning box 209a, the sliding block 209c is fixed at one end of the fourth spring 209b, the limiting block 209d is fixed at one side of the sliding block 209c, and the second pulling block 209e is arranged at the bottom of the sliding block 209 c.

Through the thrust of fourth spring 209b for slider 209c drives stopper 209d and carries out spacingly to second filter screen 206c, and then makes second filter screen 206c can not follow the internal whereabouts of mounting bracket 206b, when demolishing second filter screen 206c, first to one side pulling second pull block 209e, and make second pull block 209e drive slider 209c remove, slider 209c drives stopper 209d and removes, and makes stopper 209d remove spacingly to second filter screen 206c, so pull out second filter screen 206c from the inside of mounting bracket 206b and clear up.

When the dust collecting device is used, the fan 204 is started firstly, the top of the fan 204 is communicated with the air inlet box 203, air in the air inlet box 203 is discharged, negative pressure is formed in the air inlet box 203, then dust generated when raw materials are thrown into the box 101 through the fixed pipe 201 and the through groove is conveyed into the conveying pipe 202, the dust is conveyed into the air inlet box 203 by the conveying pipe 202, the air firstly enters the positioning frame 205c, dust in the air is filtered through the first filter screen 205b, the dust is attached to the first filter screen 205b, and the air is discharged through the fan 204, so that the dust can be prevented from scattering everywhere.

When the first filter 205b is blocked, the suction force of the air discharged by the fan 204 will open the baffle 206a and make the air discharged after being filtered by the second filter 206c, then when the first filter 205b is removed by a worker, the first pull block 208e is pulled first, the first pull block 208e drives the movable block 208c to move, the movable block 208c drives the positioning block 208d to move, and the positioning block 208d releases the limit of the first filter 205b, so that the first filter 205b can be removed for cleaning, and meanwhile, the first filter 205b drives the grille 205d to move through the limit piece 207, and the grille 205d coincides with the frame on the positioning frame 205c, so that the air is blocked from entering the positioning frame 205c, and the first filter 205b is pulled out from the air inlet box 203 continuously, so that dust attached to the first filter 205b can be cleaned.

When the second filter screen 206c is removed, the second pull block 209e is pulled to one side, the second pull block 209e drives the slide block 209c to move, the slide block 209c drives the limiting block 209d to move, and the limiting block 209d releases the limiting of the second filter screen 206c, so that the second filter screen 206c is pulled out from the inside of the mounting frame 206b to be cleaned.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. Raw materials stockpiling device with dustproof function, its characterized in that: comprising the steps of (a) a step of,

the main body assembly (100) comprises a box body (101), a feed hopper (102) and a conveying piece (103), wherein the feed hopper (102) is arranged at the top of the box body (101), and the conveying piece (103) is arranged in the box body (101);

the dust removal assembly (200) is arranged on the main body assembly (100), and comprises a fixed pipe (201), a transmission pipe (202), an air inlet box (203), a fan (204), a first dust-proof piece (205), a second dust-proof piece (206), a limiting piece (207), a first positioning piece (208) and a second positioning piece (209), wherein the fixed pipe (201) is fixed on one side of the box body (101), the transmission pipe (202) is communicated with one side of the fixed pipe (201), the air inlet box (203) is fixed on one side of the box body (101), the fan (204) is arranged at the bottom of the air inlet box (203), the first dust-proof piece (205) and the second dust-proof piece (206) are all arranged in the air inlet box (203), the limiting piece (207) is positioned in the first dust-proof piece (205), the first positioning piece (208) is positioned on one side of the air inlet box (203), and the second positioning piece (209) is arranged at the bottom of the box (203).

2. The raw material stocking device with a dust-proof function according to claim 1, wherein: the conveying member (103) comprises a motor (103 a), a conveying pipe (103 b) and an auger (103 c), wherein the motor (103 a) is fixed on one side of the box body (101), the conveying pipe (103 b) is fixed in the box body (101), the auger (103 c) is rotationally connected in the conveying pipe (103 b), and the output end of the motor (103 a) is fixed with the end part of the auger (103 c).

3. The raw material stocking device with a dust-proof function according to claim 2, wherein: the conveying member (103) further comprises a side plate (103 d), and the side plate (103 d) is fixed to the inner bottom wall of the box body (101).

4. A raw material stocking device with a dust-proof function as set forth in claim 2 or 3, wherein: the first dust-proof piece (205) comprises a fixing frame (205 a) and a first filter screen (205 b), wherein the fixing frame (205 a) is fixed on the inner bottom wall of the air inlet box (203), and the first filter screen (205 b) is movably connected in the fixing frame (205 a).

5. The raw material stocking device with a dust-proof function according to claim 4, wherein: the first dust-proof piece (205) further comprises a locating rack (205 c) and a grid (205 d), wherein the locating rack (205 c) is fixed on the inner bottom wall of the air inlet box (203), and the grid (205 d) is movably connected in the locating rack (205 c).

6. The raw material stocking device with a dust-proof function according to claim 5, wherein: the second dustproof piece (206) comprises a baffle (206 a), a mounting frame (206 b) and a second filter screen (206 c), wherein the baffle (206 a) is rotationally connected in the mounting frame (205 a), the mounting frame (206 b) is fixed in the air inlet box (203), and the second filter screen (206 c) is movably connected in the mounting frame (206 b).

7. The raw material stocking device with a dust-proof function according to claim 6, wherein: the second dustproof piece (206) further comprises a first spring (206 d), an arc-shaped pipe (206 e) and a connecting column (206 f), one end of the first spring (206 d) is fixed with the baffle (206 a), the other end of the first spring is fixed on the inner wall of the air inlet box (203), the arc-shaped pipe (206 e) is fixed in the air inlet box (203), and the connecting column (206 f) is movably connected in the arc-shaped pipe (206 e).

8. The raw material stocking device with a dust-proof function according to claim 6 or 7, wherein: the limiting piece (207) comprises a sleeve (207 a), a second spring (207 b), a limiting bead (207 c) and a fixing seat (207 d), wherein the sleeve (207 a) is fixed in the first filter screen (205 b), the second spring (207 b) is arranged in the sleeve (207 a), the limiting bead (207 c) is fixed at one end of the second spring (207 b), and the fixing seat (207 d) is fixed at the inner side of the grid (205 d).

9. The raw material stocking device with a dust-proof function according to claim 8, wherein: the first positioning piece (208) comprises a fixed box (208 a), a third spring (208 b), a movable block (208 c), a positioning block (208 d) and a first pulling block (208 e), wherein the fixed box (208 a) is fixed on one side of the air inlet box (203), the third spring (208 b) is arranged in the fixed box (208 a), the movable block (208 c) is movably connected in the fixed box (208 a), the positioning block (208 d) is fixed on one side of the movable block (208 c), and the first pulling block (208 e) is arranged on the side face of the movable block (208 c).

10. The raw material stocking device with a dust-proof function according to claim 9, wherein: the second locating piece (209) comprises a locating box (209 a), a fourth spring (209 b), a sliding block (209 c), a limiting block (209 d) and a second pulling block (209 e), wherein the locating box (209 a) is fixed at the bottom of the air inlet box (203), the fourth spring (209 b) is arranged in the locating box (209 a), the sliding block (209 c) is fixed at one end of the fourth spring (209 b), the limiting block (209 d) is fixed at one side of the sliding block (209 c), and the second pulling block (209 e) is arranged at the bottom of the sliding block (209 c).