CN219849913U - Sand mill anti-blocking mechanism - Google Patents

Abstract

The utility model provides an anti-blocking mechanism of a sand mill, which belongs to the technical field of sand mills and comprises a sand mill body; the upper part of the sand mill body is provided with a feed inlet, the lower part of the sand mill body is provided with a discharge outlet, and a filter plate is arranged in the discharge outlet in a sliding manner; the side wall of the feeding hole is provided with a rectangular air cavity, a movable baffle is slidably arranged in the rectangular air cavity, and the movable baffle stretches into the feeding hole and is used for limiting feeding speed; an annular air cavity is formed in the discharge hole, an annular piston is fixedly connected to the bottom of the filter plate and is arranged in the annular air cavity in a sliding mode, the annular air cavity is communicated with the rectangular air cavity through an air pipe, and the communication space inside the annular air cavity, the air pipe and the rectangular air cavity is airtight; a spring is arranged between the bottom in the annular air cavity and the bottom of the annular piston; the utility model can solve the problem that the sand mill is blocked easily due to the uncoordinated feeding speed and processing speed of the sand mill.

Description

Sand mill anti-blocking mechanism

Technical Field

The utility model belongs to the technical field of sand mills, and particularly relates to an anti-blocking mechanism of a sand mill.

Background

The grinding media of the sand mill are generally divided into zirconia beads, glass beads, zirconium silicate beads and the like, the sand mill is grinding equipment with the most wide material adaptability, the most advanced and the highest efficiency, the sand mill is also called a bead mill, is mainly used for wet grinding of chemical liquid products, and can be generally divided into a horizontal sand mill, a basket type sand mill, a vertical sand mill and the like according to the service performance; the sand mill mainly comprises a machine body, a grinding cylinder, a sand grinding disc, a grinding medium, a motor and a feed pump, wherein the feeding speed is controlled by the feed pump; the grinding cavity is narrowest, the gap of the deflector rod is smallest, the grinding energy is denser, and the continuous processing and continuous discharging of materials can be realized by matching with a high-performance cooling system and an automatic control system, so that the production efficiency is greatly improved.

In the prior art, materials generated by a sand mill can be discharged through a discharge pipe, but in the discharging process, the materials are easy to block in the discharge pipe, so that the discharge speed of the discharge pipe is low, and part of the materials can be blocked in the discharge pipe; one of the main causes of clogging of sand mills is that the feed rate is too fast; the feeding speed is not coordinated with the processing speed, the feeding is fast, the crushing is slow, and the discharging is too late. Therefore, the conventional sand mill has the problem that the feeding speed and the processing speed are not coordinated, and the sand mill is easy to be blocked.

Disclosure of Invention

In view of the above, the anti-blocking mechanism of the sand mill provided by the utility model can solve the problem that the sand mill is blocked easily due to the fact that the feeding speed and the processing speed of the sand mill are not coordinated.

The utility model is realized in the following way:

the utility model provides an anti-blocking mechanism of a sand mill, which comprises a sand mill body; the sand mill comprises a sand mill body, wherein a sand mill cover is arranged on the sand mill body, a sand mill cover is arranged on the sand mill cover, and a sand mill cover is arranged on the sand mill cover; the side wall of the feeding hole is provided with a rectangular air cavity, a movable baffle is slidably arranged in the rectangular air cavity, and the movable baffle stretches into the feeding hole and is used for limiting feeding speed; an annular air cavity is formed in the discharge hole, an annular piston is fixedly connected to the bottom of the filter plate, the annular piston is arranged in the annular air cavity in a sliding mode, the annular air cavity is communicated with the rectangular air cavity through an air pipe, and the communication space inside the annular air cavity, the air pipe and the rectangular air cavity is airtight; and a spring is arranged between the bottom in the annular air cavity and the bottom of the annular piston.

Through the arrangement, the annular piston arranged in the annular piston is connected below the filter plate in the discharge hole, when excessive materials are accumulated above the filter plate, the gravity of the materials acts on the filter plate, the annular piston is arranged below the filter plate, gas in the annular air cavity is discharged, the gas is input into the rectangular air cavity through the gas pipe, the gas in the rectangular air cavity is introduced to push the movable baffle plate, the movable baffle plate stretches into the feed hole, the feed speed of the feed hole is blocked, and the buffer time is provided for the filter plate to filter the accumulated materials; through the arrangement of the springs, after the materials accumulated on the filter plate are filtered and reduced, the materials are reduced, the acting force exerted on the filter plate is also reduced, the elastic force generated by the springs can push the annular piston upwards, negative pressure is generated in the annular air cavity, the air in the rectangular air cavity flows back into the annular air cavity through the air pipe, the air in the rectangular air cavity is reduced, the movable baffle is retracted, and at the moment, the feeding speed in the feeding port is recovered to be normal; with this realization when the material piles up in the filter top, can slow down the pan feeding speed in the pan feeding mouth automatically, provide buffering time for the filter filters the material of piling up, prevent that the material on the filter from continuously piling up, cause the jam.

On the basis of the technical scheme, the anti-blocking mechanism of the sand mill can be further improved as follows:

the air nozzle of the rectangular air cavity is communicated with the inside of the rectangular air cavity; the air tap of the rectangular air cavity is characterized in that an annular air cavity air tap is arranged on the outer side of the air tap of the rectangular air cavity and is communicated with the inner part of the air tap of the rectangular air cavity, the annular air tap of the air cavity penetrates through the wall of the discharge hole, the air tap of the annular air cavity is positioned on the outer part of the discharge hole, and two ends of the air pipe are respectively in threaded connection and communication with the air tap of the rectangular air cavity and the air tap of the annular air cavity.

Through the arrangement, the air pipe is conveniently used for connecting and communicating the rectangular air cavity and the annular air cavity, and the air pipe is convenient to disassemble and assemble.

Further, the movable baffle stretches into the material inlet, the movable baffle is made of hard materials, a smooth rubber layer is arranged at one end of the movable baffle, which is located inside the rectangular air cavity, and the outer side of the smooth rubber layer is in close contact with the inner wall of the rectangular air cavity.

Through the arrangement, the air tightness inside the rectangular air cavity is better, so that the air pressure transmission between the rectangular air cavity and the annular air cavity is more sensitive.

Further, the upper part of the annular piston is made of hard materials, an annular smooth rubber layer is arranged at the bottom of the annular piston, and the side wall of the annular smooth rubber layer is in close contact with the inner side wall of the annular air cavity.

Through the arrangement, the air tightness inside the annular air cavity is better.

Further, the springs are multiple, and the uniform circumferential array is arranged inside the annular air cavity.

By adopting the arrangement, when the spring pushes the annular piston, the applied acting force is more balanced, and the up-and-down movement of the filter plate is more stable.

Further, the middle part position of the filter plate is provided with a filter hole, the side part of the filter plate is provided with an annular bulge, the outer side of the annular bulge is in contact with the inner wall of the discharge hole, and the annular bulge is used for limiting the deflection of the filter plate so as to enable the filter plate to slide along the axial direction of the discharge hole.

Through the arrangement, the filter plate moves up and down more stably.

Further, an oblique angle is arranged on the inner side of the annular protrusion, and the upper side line circle of the oblique angle is larger than the lower side line circle.

Through setting up the oblique angle, with material direction filtration pore, be convenient for filter the material.

Further, the gas pipe is made of rubber or plastic materials, and the gas volume of the inner space of the gas pipe is not larger than that of the inner space of the annular gas cavity.

Through the arrangement, the pneumatic transmission between the rectangular air cavity and the annular air cavity is more sensitive.

Further, the cross section of pan feeding mouth is the rectangle, the movable baffle is the rectangle slab, the movable baffle stretches into the upper portion of pan feeding mouth one end is provided with the oblique angle.

Through the arrangement, when the movable baffle pushes and extends into the feed inlet, the chamfer angle arranged on the movable baffle enables the front section of the movable baffle to be smaller, the resistance of the movable baffle to extend into the feed inlet is smaller, and the movable baffle moves into the feed inlet more easily.

Further, the rectangular air cavity is fixedly arranged on one surface of the feeding port, which is close to the discharging port.

Through the arrangement, the distance between the rectangular air cavity air tap and the annular air cavity air tap is shorter, the length of the air delivery pipe is shorter, the flowing path of air in the air delivery pipe is shorter, and pneumatic transmission is faster.

Compared with the prior art, the anti-blocking mechanism of the sand mill has the beneficial effects that: adopt pure physical structure to realize when piling up at filter top material, can slow down the pan feeding speed in the pan feeding mouth voluntarily, coordinate the feed rate and the process velocity of sand mill, the effectual possibility that reduces sand mill by the jam.

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 of the present utility model 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.

FIG. 1 is a schematic diagram of an anti-blocking mechanism of a sand mill;

FIG. 2 is a longitudinal sectional view of a feed inlet of an anti-blocking mechanism of the sand mill;

FIG. 3 is a longitudinal sectional view of a discharge port of an anti-blocking mechanism of the sand mill;

FIG. 4 is a cross-sectional view of a discharge port of an anti-blocking mechanism of a sand mill;

in the drawings, the list of components represented by the various numbers is as follows:

1. a sand mill body; 2. a feed inlet; 21. rectangular air cavities; 211. rectangular air cavity air tap; 22. a movable baffle; 3. a discharge port; 31. a filter plate; 311. an annular piston; 32. an annular air cavity; 321. an annular air cavity air tap; 322. a spring; 4. and a gas pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

1-4, a first embodiment of a sand mill anti-blocking mechanism provided by the utility model comprises a sand mill body 1; the upper part of the sand mill body 1 is provided with a feed inlet 2, the lower part of the sand mill body 1 is provided with a discharge outlet 3, wherein a filter plate 31 is arranged in the discharge outlet 3 in a sliding manner; the side wall of the feed inlet 2 is provided with a rectangular air cavity 21, a movable baffle 22 is slidably arranged in the rectangular air cavity 21, and the movable baffle 22 stretches into the feed inlet 2 and is used for limiting the feed speed; an annular air cavity 32 is arranged in the discharge hole 3, an annular piston 311 is fixedly connected to the bottom of the filter plate 31, the annular piston 311 is slidably arranged in the annular air cavity 32, the annular air cavity 32 is communicated with the rectangular air cavity 21 through the air pipe 4, and the communication space between the annular air cavity 32, the air pipe 4 and the rectangular air cavity 21 is airtight; a spring 322 is disposed between the bottom of the annular air chamber 32 and the bottom of the annular piston 311.

During the use, the user with the both ends of gas-supply pipe 4 respectively with rectangle air cavity air cock 211 and annular air cavity 321 threaded connection, then start sand mill body 1, sand mill body 1 begins work, the material enters into sand mill body 1 from feed inlet 2, sand mill body 1 carries out the processing to the material, then export the material from discharge gate 3 department, filter plate 31 in the discharge gate 3 filters the material, when feed inlet 2 pan feeding speed is too fast, when leading to filter plate 31 to pile up the material, the gravity effect of the material of pile up on filter plate 31 is on filter plate 31, filter plate 31 down press ring piston 311, annular piston 311 moves down, filter plate 31 inner space reduces, the inside gaseous filter plate 31 internal discharge of filter plate 31, the gaseous material that is discharged in the filter plate 31 is through gas-supply pipe 4 inflow rectangle air cavity 21 internal gas increase in, the material circulation area of movable baffle 22 in the feed inlet 2 is reduced to the movable baffle 22, reduce the material circulation area of feed inlet 2 at this moment, pile up the material speed on filter plate 31 is slowed down, when filter plate 31 filters the material, when filter plate 31 pile up the material pile up speed is big on filter plate 31, when the filter plate 31 is in the annular piston 311, the inside air cavity is reduced, the inside air cavity is produced to the annular piston 31, the inside is reduced, the inside gaseous material is compressed down, the inside the annular piston is pushed back down, the inside the annular filter plate 31, the inside the material is compressed down, the material is in the material circulation area is reduced, the material circulation on the material circulation speed of material is in the material.

In the above technical solution, a rectangular air cavity air tap 211 is arranged outside the rectangular air cavity 21, and the rectangular air cavity air tap 211 is communicated with the inside of the rectangular air cavity 21; the outside of the rectangular air cavity air tap 211 is provided with an annular air cavity air tap 321, the rectangular air cavity air tap 211 is communicated with the inside of the annular air cavity air tap 321, the annular air cavity air tap 321 penetrates through the wall of the discharge hole 3, the annular air cavity air tap 321 is positioned outside the discharge hole 3, and two ends of the air pipe 4 are respectively in threaded connection and communication with the rectangular air cavity air tap 211 and the annular air cavity air tap 321.

Furthermore, in the above technical scheme, the end of the movable baffle 22 extending into the feed inlet 2 is made of hard material, the end of the movable baffle 22 located inside the rectangular air cavity 21 is provided with a smooth rubber layer, and the outer side of the smooth rubber layer is in close contact with the inner wall of the rectangular air cavity 21.

Further, in the above technical solution, the upper portion of the annular piston 311 is made of a hard material, the bottom of the annular piston 311 is provided with an annular smooth rubber layer, and the side wall of the annular smooth rubber layer is in close contact with the inner side wall of the annular air cavity 32.

Further, in the above-described embodiment, the springs 322 are provided in plural, uniform circumferential arrays inside the annular air chamber 32.

Further, in the above technical scheme, the middle part position of the filter plate 31 is provided with the filtration pore, and the lateral part of the filter plate 31 is provided with annular bulge, and the bellied outside of annular contacts with the inner wall of discharge gate 3, and annular bulge is used for restricting the filter plate 31 deflection, makes it slide along the axial direction of discharge gate 3.

Furthermore, in the above technical scheme, the inner side of the annular protrusion is provided with an oblique angle, and the edge line circle at the upper part of the oblique angle is larger than the edge line circle at the lower part of the oblique angle.

Further, in the above technical solution, the air pipe 4 is made of rubber or plastic, and the air volume of the inner space of the air pipe 4 is not greater than the air volume of the inner space of the annular air cavity 32.

Further, in the above technical solution, the cross section of the feed inlet 2 is rectangular, the movable baffle 22 is a rectangular flat block, and an oblique angle is provided on the upper portion of one end of the movable baffle 22 extending into the feed inlet 2.

Further, in the above technical solution, the rectangular air cavity 21 is fixedly disposed on a surface of the feed inlet 2 near the discharge outlet 3.

Specifically, the method comprises the following specific operation steps: the user connects the two ends of the air pipe 4 with the rectangular air cavity air tap 211 and the annular air cavity air tap 321 respectively, then starts the sand mill body 1, the sand mill body 1 starts working, the material enters the sand mill body 1 from the feed inlet 2, the sand mill body 1 processes the material, then outputs the material from the discharge outlet 3, the filter plate 31 in the discharge outlet 3 filters the material, when the feed speed of the feed inlet 2 is too fast, the material piled on the filter plate 31 is caused to be piled on the filter plate 31, the gravity of the material piled on the filter plate 31 acts on the filter plate 31, the annular piston 311 moves downwards, the internal space of the filter plate 31 is reduced, the gas inside the filter plate 31 is discharged, the gas discharged from the filter plate 31 flows into the rectangular air cavity 21 through the air pipe 4, the gas inside the rectangular air cavity 21 is increased, the movable baffle 22 is pushed by gas to move towards the inside of the feed inlet 2, the material flow area of the feed inlet 2 is reduced by the movable baffle 22, the feed speed is reduced, the material stacking speed on the filter plate 31 is reduced, the filter plate 31 filters the material, when the filtering speed of the filter plate 31 is higher than the material stacking speed on the filter plate 31, the material stacking quantity on the filter plate 31 is reduced, the material gravity on the filter plate 31 is reduced, the spring 322 rebounds, the annular piston 311 is pushed back upwards by the generated elastic force, the inner space of the annular piston 311 is increased, negative pressure is generated, the gas in the rectangular air cavity 21 is pumped back by the ventilation pipe or the gas pipe 4, the gas in the rectangular air cavity 21 is reduced, the movable baffle 22 is retracted, the material flow area in the feed inlet 2 is increased, and the feed speed is recovered.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. An anti-blocking mechanism of a sand mill comprises a sand mill body (1); the sand mill is characterized in that a filter plate (31) is slidably arranged in the discharge hole (3); the side wall of the feeding hole (2) is provided with a rectangular air cavity (21), a movable baffle plate (22) is slidably arranged in the rectangular air cavity (21), and the movable baffle plate (22) stretches into the feeding hole (2) and is used for limiting feeding speed; an annular air cavity (32) is formed in the discharge hole (3), an annular piston (311) is fixedly connected to the bottom of the filter plate (31), the annular piston (311) is slidably arranged in the annular air cavity (32), the annular air cavity (32) is communicated with the rectangular air cavity (21) through an air pipe (4), and the communication space inside the annular air cavity (32), the air pipe (4) and the rectangular air cavity (21) is airtight; a spring (322) is arranged between the inner bottom of the annular air cavity (32) and the bottom of the annular piston (311).

2. The sand mill anti-blocking mechanism according to claim 1, wherein a rectangular air cavity air tap (211) is arranged outside the rectangular air cavity (21), and the rectangular air cavity air tap (211) is communicated with the inside of the rectangular air cavity (21); the air conditioner is characterized in that an annular air cavity air nozzle (321) is arranged on the outer side of the rectangular air cavity air nozzle (211), the annular air cavity air nozzle (321) is communicated with the inside of the rectangular air cavity air nozzle (211), the annular air cavity air nozzle (321) penetrates through the wall of the discharge port (3), the annular air cavity air nozzle (321) is located outside the discharge port (3), and two ends of the air pipe (4) are respectively in threaded connection and communication with the rectangular air cavity air nozzle (211) and the annular air cavity air nozzle (321).

3. The sand mill anti-blocking mechanism according to claim 2, wherein the end of the movable baffle plate (22) extending into the feed inlet (2) is made of hard materials, a smooth rubber layer is arranged at the end of the movable baffle plate (22) positioned in the rectangular air cavity (21), and the outer side of the smooth rubber layer is in tight contact with the inner wall of the rectangular air cavity (21).

4. A sand mill anti-blocking mechanism according to claim 3, wherein the upper part of the annular piston (311) is made of hard material, an annular smooth rubber layer is arranged at the bottom of the annular piston (311), and the side wall of the annular smooth rubber layer is tightly contacted with the inner side wall of the annular air cavity (32).

5. A sand mill anti-blocking mechanism according to claim 4, characterized in that the springs (322) are a plurality of uniform circumferential arrays arranged inside the annular air chamber (32).

6. The sand mill anti-blocking mechanism according to claim 5, wherein a filter hole is formed in the middle of the filter plate (31), an annular protrusion is formed on the side of the filter plate (31), the outer side of the annular protrusion is in contact with the inner wall of the discharge port (3), and the annular protrusion is used for limiting the deflection of the filter plate (31) so as to enable the filter plate to slide along the axial direction of the discharge port (3).

7. The sand mill anti-blocking mechanism of claim 6, wherein the annular protrusion is provided with a bevel on the inner side, and the upper side line circle of the bevel is larger than the lower side line circle.

8. A sand mill anti-blocking mechanism according to claim 7, characterized in that the gas pipe (4) is made of rubber or plastic, and the gas volume of the inner space of the gas pipe (4) is not larger than the gas volume of the inner space of the annular air cavity (32).

9. The sand mill anti-blocking mechanism according to claim 8, wherein the cross section of the feed inlet (2) is rectangular, the movable baffle (22) is a rectangular flat block, and an oblique angle is arranged at the upper part of one end of the movable baffle (22) extending into the feed inlet (2).

10. A sand mill anti-blocking mechanism according to claim 9, characterized in that the rectangular air cavity (21) is fixedly arranged on one side of the feed inlet (2) close to the discharge outlet (3).