CN218796205U

CN218796205U - Milling equipment with selection by winnowing function

Info

Publication number: CN218796205U
Application number: CN202222878162.8U
Authority: CN
Inventors: 李松涛; 夏梦卿
Original assignee: Huizhou Shuangsai Electronic Technology Co ltd
Current assignee: Huizhou Shuangsai Electronic Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-07
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a milling device with winnowing function, which relates to the technical field of milling devices, and comprises a shell, wherein a screen cylinder is welded inside the shell, and a milling roller is arranged inside the screen cylinder in a matching way; one end of the milling roller is fixedly connected with the winnowing shell through a bearing with a seat, the other end of the milling roller is connected with the shell through the bearing with the seat, and the end penetrates through the outer part of the shell and is connected with an output shaft of the grinding motor through a coupler; when the powder grinding machine is used, powder is added into a screen mesh cylinder from a feed inlet, a grinding motor drives a grinding roller to rotate, grinding of the powder is achieved under the cooperation of the screen mesh cylinder, the powder meeting the requirement of the particle size during grinding penetrates through the screen mesh cylinder to fall into a collecting hopper, the powder smaller than the standard particle size is sucked into a winnowing shell under the suction of negative pressure due to the fact that the weight of the powder is light, the powder is left in the winnowing shell under the filtration of filter cloth, and then the powder is discharged from the position of the powder inlet.

Description

Milling equipment with winnowing function

Technical Field

The utility model particularly relates to a milling equipment technical field specifically is a milling equipment with selection by winnowing function.

Background

Powder spraying is to spray powder coating on the surface of a workpiece by using powder spraying equipment (an electrostatic spraying machine), and the powder can be uniformly adsorbed on the surface of the workpiece under the action of static electricity to form a powdery coating which is baked, leveled and cured at high temperature to form final coatings with different effects (different types of effects of the powder coating); the spraying effect of the powder spraying is superior to that of a paint spraying process in the aspects of mechanical strength, adhesive force, corrosion resistance, aging resistance and the like.

The size of the powder particles during spraying has a decisive influence on the gloss, the homogeneity and the density of the sprayed layer. Therefore, the powder has high processing requirements when being milled.

The traditional milling equipment is usually used by matching two grinding discs, or a grinding cylinder and a grinding roller to grind materials; the situation that the particle sizes of materials are different exists in any kind of grinding, the materials with different particle sizes are directly discharged by the conventional grinding equipment, so that the particle sizes of the ground materials are not uniform, the later screening work is needed, the work is very complicated, and the work efficiency is low; therefore, when the grinding equipment with the winnowing function is used for grinding powder, the powder with the particle size smaller than the standard particle size is pumped away by negative pressure, the powder with the particle size larger than the standard particle size is continuously ground, qualified powder falls into the aggregate cavity to be collected, the uniform particle size of the powder can be ensured, and the overall quality of the powder is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a milling equipment with winnowing function, which solves the problem that the traditional milling equipment proposed in the background technology is usually used by matching two grinding discs, or a grinding cylinder and a grinding roller to grind materials; no matter which kind of grinding all can have the condition that the material particle size is unequal, the material direct discharge of the particle size that will be unequal of current milling equipment, this material granularity that just leads to after grinding is inhomogeneous, still needs the screening work in later stage, and work is very loaded down with trivial details, the technical problem that work efficiency is comparatively low moreover.

In order to achieve the above object, the utility model provides a following technical scheme:

a milling device with a winnowing function comprises a shell, wherein a screen cylinder is welded inside the shell, and a milling roller is installed inside the screen cylinder in a matched mode; one end of the milling roller is fixedly connected with the air separation shell through a bearing with a seat, the other end of the milling roller is connected with the shell through the bearing with the seat, and the end penetrates through the outer part of the shell and is connected with an output shaft of the grinding motor through a coupler;

the bottom of the winnowing shell is provided with a powder port, and one side of the winnowing shell is fixedly provided with an air suction nozzle; the outside of the air draft nozzle is connected with a negative pressure pipe.

As a further technical scheme of the utility model, the top of the machine shell is provided with a feed inlet, the feed inlet also penetrates through the top of the screen cylinder, and the feed inlet is welded on the machine shell; a material collecting hopper is welded below the shell, and a discharge hole is welded at the bottom of the material collecting hopper; the aggregate bin is fixedly arranged on the frame body.

As a further technical proposal of the utility model, the discharge hole is surrounded by a dust absorption pipe, and the bottom of the dust absorption pipe is provided with a plurality of dust absorption holes; the dust absorption pipe is connected with the negative pressure pipe through the conveying pipe.

As a further technical scheme of the utility model, the bottom welding of selection by winnowing shell have the powder mouth to there is the filter cloth in the inside of selection by winnowing shell through the mounting screw, this filter cloth is located the inboard of suction nozzle.

As a further technical scheme of the utility model, the outside of selection by winnowing shell be provided with two handles.

As the utility model discloses a further technical scheme, the grinding motor pass through bolt and mount fixed connection, this mount passes through bolt fixed mounting in the top of frame body one end to the welding has the floor between mount and frame body.

As a further technical scheme of the utility model, the winnowing shell seted up the circular recess with one side that the shell is connected, the diameter of this circular recess is greater than the diameter of a screen cloth section of thick bamboo to the winnowing shell is linked together with the collecting hopper inner chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the powder winnowing machine is used, powder is firstly added into the screen cylinder from the feed inlet, the grinding motor drives the grinding roller to rotate, the grinding of the powder is realized under the coordination of the screen cylinder, the powder meeting the requirement on the particle size during the grinding falls into the material collecting hopper through the screen cylinder, the powder smaller than the standard particle size is pumped into the winnowing shell under the suction of negative pressure due to light weight, and is left in the winnowing shell under the filtration of the filter cloth and then is discharged from the powder outlet;

2. the utility model discloses, when the material that qualifies in the collecting hopper is discharged from the discharge gate, the phenomenon of "raise dust" can appear, in order to prevent to diffuse in the air, the dust absorption pipe extracts the dust that escapes, because the negative pressure pipe is connected with the negative pressure jar, can transport the dust that escapes to the negative pressure jar and store;

3. the utility model discloses, the circular recess has been seted up to one side that selection by winnowing shell and shell are connected, and the diameter of this circular recess is greater than the diameter of a screen cloth section of thick bamboo, because certain clearance has between a screen cloth section of thick bamboo and the crocus roller, can extract the less powder of a part particle diameter through the negative pressure, in order to improve the effect that the less powder of particle diameter was taken out, consequently be linked together the setting with selection by winnowing shell and collecting hopper inner chamber on purpose, can also extract once more when the powder whereabouts to the selection by winnowing effect of powder has been improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a bottom schematic view of fig. 1 of the present invention.

Fig. 3 is a left side schematic view of fig. 1 in the present invention.

Fig. 4 is a left side view of fig. 1 in the present invention.

Fig. 5 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 4 according to the present invention.

Fig. 6 is a schematic half-sectional view of fig. 1 in the present invention.

Fig. 7 is a partially enlarged schematic view of fig. 5 in the present invention.

In the figure: 1-frame body, 2-shell, 3-feed inlet, 4-screen cylinder, 5-milling roller, 6-winnowing shell, 7-air suction nozzle, 8-negative pressure pipe, 9-aggregate hopper, 10-discharge outlet, 11-dust suction pipe, 12-conveying pipe, 13-fixing frame, 14-grinding motor, 15-handle, 16-powder inlet, 17-filter cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, in an embodiment of the present invention, a pulverizer with a winnowing function includes a housing 2, a screen cylinder 4 welded inside the housing 2, and a pulverizing roller 5 installed inside the screen cylinder 4; one end of the milling roller 5 is fixedly connected with the winnowing shell 6 through a bearing with a seat, the other end of the milling roller 5 is connected with the shell 2 through a bearing with a seat, and the other end penetrates through the outer part of the shell 2 and is connected with an output shaft of the grinding motor 14 through a coupler;

the bottom of the air separation shell 6 is provided with a powder port 16, and one side of the air separation shell 6 is fixedly provided with an air suction nozzle 7; the outside of the air draft nozzle 7 is connected with a negative pressure pipe 8.

Specifically, the bottom of the air separation shell 6 is welded with a powder port 16, and a filter cloth 17 is installed inside the air separation shell 6 through a screw, wherein the filter cloth 17 is positioned on the inner side of the air suction nozzle 7.

Through adopting above-mentioned technical scheme, when using, at first add the powder to screen cloth section of thick bamboo 4 from feed inlet 3 in, grinding motor 14 drives the crocus roller 5 rotatory, realize the grinding to the powder under screen cloth section of thick bamboo 4's cooperation, the powder that reaches the requirement particle diameter requirement during grinding sees through screen cloth section of thick bamboo 4 and falls into collecting hopper 9, and the powder that is less than the standard particle diameter, because its weight is lighter, is taken out to winnowing shell 6 under the attraction of negative pressure, stays in winnowing shell 6 under the filtration of filter cloth 17, then discharge from powder mouth 16.

In this embodiment, the top of the housing 2 is provided with a feed inlet, the feed inlet also penetrates through the top of the screen drum 4, and the feed inlet 3 is welded on the housing 2; a material collecting hopper 9 is welded below the shell 2, and a material outlet 10 is welded at the bottom of the material collecting hopper 9; the aggregate bin 9 is fixedly arranged on the frame body 1.

Specifically, a dust suction pipe 11 is arranged around the discharge hole 10, and a plurality of dust suction holes are formed in the bottom of the dust suction pipe 11; the dust suction pipe 11 is connected with the negative pressure pipe 8 through a delivery pipe 12.

Through adopting above-mentioned technical scheme, when material that qualifies in collecting hopper 9 is discharged from discharge gate 10, the phenomenon of "raise dust" can appear, in order to prevent to fill in the air, dust absorption pipe 11 extracts the dust that escapes, because negative pressure pipe 8 is connected with the negative pressure jar, can carry the dust that escapes to store in the negative pressure jar.

In this embodiment, two handles 15 are arranged outside the air separation shell 6; the grinding motor 14 is fixedly connected with the fixing frame 13 through bolts, the fixing frame 13 is fixedly installed above one end of the frame body 1 through bolts, and rib plates are welded between the fixing frame 13 and the frame body 1.

In this embodiment, a circular groove is formed at the side where the air separation shell 6 is connected with the shell 2, the diameter of the circular groove is larger than that of the screen drum 4, and the air separation shell 6 is communicated with the inner cavity of the aggregate bin 9.

By adopting the technical scheme, as a certain gap is formed between the screen cylinder 4 and the grinding roller 5, a part of powder with smaller particle size can be extracted through negative pressure, and in order to improve the effect of extracting the powder with smaller particle size, the inner cavities of the winnowing shell 6 and the collecting hopper 9 are specially communicated and arranged, and the powder can be extracted again when falling, so that the winnowing effect of the powder is improved.

The utility model discloses a theory of operation is: when the powder winnowing machine is used, powder is firstly added into the screen cylinder 4 from the feed port 3, the grinding motor 14 drives the grinding roller 5 to rotate, the powder is ground under the coordination of the screen cylinder 4, the powder meeting the requirement on the particle size falls into the aggregate bin 9 through the screen cylinder 4 during grinding, the powder with the particle size smaller than the standard particle size is sucked into the winnowing shell 6 under the suction of negative pressure due to light weight, is left in the winnowing shell 6 under the filtration of the filter cloth 17, and is discharged from the powder port 16;

when qualified materials in the collecting hopper 9 are discharged from the discharge hole 10, a dust-raising phenomenon occurs, in order to prevent the materials from diffusing in the air, the dust-collecting pipe 11 extracts escaping dust, and the escaping dust can be conveyed into the negative pressure tank for storage because the negative pressure pipe 8 is connected with the negative pressure tank;

the circular groove is formed in the side, connected with the shell 2, of the winnowing shell 6, the diameter of the circular groove is larger than that of the screen cylinder 4, a certain gap is formed between the screen cylinder 4 and the grinding roller 5, a part of powder with small particle size can be extracted through negative pressure, in order to improve the effect of extracting the powder with small particle size, the winnowing shell 6 is specially communicated with the inner cavity of the collecting hopper 9, the powder can be extracted again when falling, and therefore the winnowing effect of the powder is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a milling equipment with selection by winnowing function which characterized in that: the powder grinding device comprises a shell (2), wherein a screen cylinder (4) is welded inside the shell (2), and a powder grinding roller (5) is installed inside the screen cylinder (4) in a matching manner; one end of the milling roller (5) is fixedly connected with the winnowing shell (6) through a bearing with a seat, the other end of the milling roller (5) is connected with the shell (2) through the bearing with the seat, and the end penetrates through the outer part of the shell (2) and is connected with an output shaft of the grinding motor (14) through a coupler;

a powder material port (16) is formed in the bottom of the air separation shell (6), and an air suction nozzle (7) is fixedly installed on one side of the air separation shell (6); the outside of the air draft nozzle (7) is connected with a negative pressure pipe (8).

2. The pulverizer with air separation function as claimed in claim 1, wherein: the top of the shell (2) is provided with a feed inlet, the feed inlet also penetrates through the top of the screen drum (4), and the feed inlet (3) is welded on the shell (2); a material collecting hopper (9) is welded below the shell (2), and a material outlet (10) is welded at the bottom of the material collecting hopper (9); the aggregate bin (9) is fixedly arranged on the frame body (1).

3. The pulverizer with air separation function as claimed in claim 2, wherein: a dust suction pipe (11) is arranged around the discharge hole (10), and a plurality of dust suction holes are formed in the bottom of the dust suction pipe (11); the dust suction pipe (11) is connected with the negative pressure pipe (8) through a conveying pipe (12).

4. The pulverizer with air separation function as claimed in claim 1, wherein: the bottom of the air separation shell (6) is welded with a powder port (16), a filter cloth (17) is installed in the air separation shell (6) through screws, and the filter cloth (17) is located on the inner side of the air suction nozzle (7).

5. The pulverizer with air separation function of claim 4, wherein: two handles (15) are arranged on the outer side of the air separation shell (6).

6. The pulverizer with air separation function as claimed in claim 5, wherein: grinding motor (14) pass through bolt and mount (13) fixed connection, this mount (13) pass through bolt fixed mounting in the top of frame body (1) one end to the welding has the floor between mount (13) and frame body (1).

7. The pulverizer with air separation function as claimed in claim 5, wherein: the circular groove is formed in the side, connected with the shell (2), of the winnowing shell (6), the diameter of the circular groove is larger than that of the screen drum (4), and the winnowing shell (6) is communicated with the inner cavity of the aggregate bin (9).