CN217017404U

CN217017404U - Vibration screening filter

Info

Publication number: CN217017404U
Application number: CN202121013729.4U
Authority: CN
Inventors: 徐本志; 陆兴东; 饶财陆
Original assignee: HUBEI HUISHENG PHARMACEUTICAL CO Ltd
Current assignee: HUBEI HUISHENG PHARMACEUTICAL CO Ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-07-22
Anticipated expiration: 2031-05-12

Abstract

The utility model provides a vibrating screening filter, and belongs to the technical field of pharmaceutical equipment. The sorting machine comprises a machine base, a machine body, a feeding hopper and a plurality of sorting mechanisms positioned in the machine body, wherein each sorting mechanism comprises a filter screen and a discharge pipe positioned above the filter screen, and the filter screens are distributed at intervals from top to bottom; from top to bottom, the aperture of the filtering holes of each filter screen is gradually reduced; the machine base is provided with a speed reducing motor, an output shaft of the speed reducing motor is fixedly provided with a rotary drum, the inner wall of the rotary drum is fixedly provided with a plurality of guide blocks, the machine body is provided with an air cylinder, a cylinder body of the air cylinder is fixedly connected with the machine body, a push rod of the air cylinder is fixedly connected with the middle part of each filter screen, the cylinder body of the air cylinder is rotatably connected in the rotary drum, the outer wall surface of the cylinder body of the air cylinder is provided with a corrugated guide groove matched with the guide blocks, a plurality of buffer springs are connected between the machine body and the machine base, and the machine body can be driven to do longitudinal reciprocating motion by the rotation of the rotary drum; the filter screen is a flexible net structure. The utility model has the advantages of good sorting quality and the like.

Description

Vibration screening filter

Technical Field

The utility model belongs to the technical field of pharmaceutical equipment, and relates to a vibrating screen filter.

Background

In the medicine preparation process, the sorting of graininess selection material is filtered and is realized through the vibration screening filter, and current vibration screening filter makes the raw materials loop through the filter screen from top to bottom through fixed filter screen to make the material realize selecting separately at the in-process of vibration, this has the problem that unloading inefficiency, separation precision are low, the reason lies in: when a large amount of materials fall to the filter screen, part of the materials which can pass through the filter screen are discharged due to insufficient contact with the filter screen, so that the sorting particle size is not uniform, a good effect can be achieved only when a small amount of the materials continuously and uniformly fall to the filter screen, and when the filter screen is blocked to a certain degree, the problem of non-uniform sorting occurs again, so that the performance of the vibrating screen filter is influenced; the bottom layer of small mesh screens is particularly prone to clogging.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibrating screen filter aiming at the problems in the prior art, and the technical problem to be solved by the utility model is how to improve the filtering effect of materials and avoid the influence of unfiltered materials on the particle size uniformity of the sorted materials.

The purpose of the utility model can be realized by the following technical scheme: a vibration screening filter is characterized by comprising a machine base, a machine body, a feeding hopper and a plurality of sorting mechanisms positioned in the machine body, wherein each sorting mechanism comprises a filter screen and a discharging pipe positioned above the filter screen, and the filter screens are distributed at intervals from top to bottom; from top to bottom, the aperture of the filtering holes of each filter screen is gradually reduced; the machine is characterized in that a speed reducing motor is arranged on the machine base, a rotary drum is fixedly arranged on an output shaft of the speed reducing motor, a plurality of guide blocks are fixedly arranged on the inner wall of the rotary drum, an air cylinder is arranged on the machine body, a cylinder body of the air cylinder is fixedly connected with the machine body, a push rod of the air cylinder is fixedly connected with the middle part of each filter screen, the cylinder body of the air cylinder is rotatably connected in the rotary drum, a corrugated guide groove matched with the guide blocks is formed in the outer wall surface of the cylinder body of the air cylinder, a plurality of buffer springs are connected between the machine body and the machine base, and the machine body can be driven to do longitudinal reciprocating motion by the rotation of the rotary drum; the filter screen is a flexible net structure.

Furthermore, the top of the push rod of the air cylinder is connected with a plug matched with the feeding hopper in a sliding mode along the axial line direction of the push rod, and a compression spring is connected between the plug and the push rod.

Further, the filter screen is a gauze screen.

Further, the filter screen is a wire mesh.

Furthermore, a tail end receiving plate fixed on the machine body is arranged below the lowest filter screen, the middle of the tail end receiving plate protrudes upwards, and a tail end discharging connecting pipe is arranged between the tail end receiving plate and the lowest filter screen.

The method comprises the following steps:

the method comprises the following steps: materials are continuously fed from the feeding port, a push rod of the control cylinder moves downwards to each filter screen and is concave in the middle, the speed reduction motor drives the machine body to vibrate longitudinally, at the moment, the feeding port is in an open state, the materials are filtered by the filter screens, so that the materials with different particle sizes are positioned in the corresponding filter screens, and the materials which can pass through the filter screen at the lowest end can be directly discharged from the tail end discharge connecting pipe; step two: after the filter operates for a set time in a state corresponding to the first step, the air cylinder is controlled to enable the push rod to move upwards, the plug blocks the feeding hole, the filter screen is in a state of protruding upwards in the middle, and the speed reduction motor drives the machine body to vibrate longitudinally to finish discharging; and (5) repeating the first step and the second step to complete the sorting and filtering of all the materials.

This filter not only can realize intermittent type nature pan feeding, makes the material that gets into in the fuselage can carry out the sorting of new material again after fully sorting filtering, has improved and has divided the sieve quality, has avoided arranging the filter blind area that the entering of material in-process new material brought.

In the process that the filter screen is converted into the upward convex state from the concave-concave state, before the concave-convex storage area of the filter screen disappears, the plug has already finished the plugging of the feeding hopper, and due to the existence of the compression spring, the push rod of the air cylinder can continue to move upwards.

When the filter screen is in a middle convex state, the machine body is also in a shaking state, so that part of materials blocking the filter screen can be separated from the filter screen.

In the deformation process of the filter screen, the aperture of the filter holes of the filter screen cannot be changed, but the filter screen shakes to complete the cleaning of the filter screen in the process of convex conversion on the concave and convex parts of the middle part of the filter screen, and the blockage problem of the filter screen is relieved.

In the local vibration divides sieve filter working process, the top of the push rod of cylinder can be in the outlet of intermittent type nature's insertion income hopper to avoid the material to take place to block up in going into the hopper, influence the continuity and the unloading volume of unloading.

The action of cylinder is gone on slowly, avoids the material to make the material splash because of the deformation overstimulation of filter screen on the one hand, and on the other hand ensures that the filter screen also can have the fuselage vibration of certain number of times at deformation in-process to the material that makes the filter screen deformation cause stirs in the filter screen and can make the material filter more thoroughly.

Drawings

FIG. 1 is a schematic perspective view of a local vibrating screen filter.

FIG. 2 is a schematic view of the structure of the filter with the filter screen in a recessed state.

FIG. 3 is a schematic view of the structure of the filter with the filter net in a state of being upwardly convex.

Fig. 4 is a schematic view of the connection structure of the drum and the cylinder.

In the figure, 1, a stand; 2. a body; 3. feeding into a hopper; 41. filtering with a screen; 42. a discharge pipe; 51. a reduction motor; 52. a rotating drum; 53. a cylinder; 54. a corrugated channel; 55. a buffer spring; 56. a guide block; 61. a plug; 62. a compression spring; 71. a tail material receiving plate; 72. and the tail end is discharged and connected with a pipe.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the device comprises a machine base 1, a machine body 2, a feeding hopper 3 and a plurality of sorting mechanisms positioned in the machine body 2, wherein each sorting mechanism comprises a filter screen 41 and a discharging pipe 42 positioned above the filter screen 41, and the filter screens 41 are distributed at intervals from top to bottom; from top to bottom, the aperture of the filtering holes of each filtering net 41 is gradually reduced; a speed reducing motor 51 is arranged on the machine base 1, a rotary drum 52 is fixedly arranged on an output shaft of the speed reducing motor 51, a plurality of guide blocks 56 are fixedly arranged on the inner wall of the rotary drum 52, an air cylinder 53 is arranged on the machine body 2, the cylinder body of the air cylinder 53 is fixedly connected with the machine body 2, a push rod of the air cylinder 53 is fixedly connected with the middle part of each filter screen 41, the cylinder body of the air cylinder 53 is rotatably connected in the rotary drum 52, the outer wall surface of the cylinder body of the air cylinder 53 is provided with a corrugated guide groove 54 matched with the guide blocks 56, a plurality of buffer springs 55 are connected between the machine body 2 and the machine base 1, and the rotary drum 52 can drive the machine body 2 to longitudinally reciprocate by rotation; the screen 41 is a flexible mesh structure.

The top of the push rod of the cylinder 53 is slidably connected with a plug 61 matched with the feeding hopper 3 along the axial direction of the push rod, and a compression spring 62 is connected between the plug 61 and the push rod.

The screen 41 is a gauze or a wire mesh.

A tail end receiving plate 71 fixed on the machine body 2 is arranged below the lowest filter screen 41, the middle part of the tail end receiving plate 71 protrudes upwards, and a tail end discharging connecting pipe 72 is arranged between the tail end receiving plate 71 and the lowest filter screen 41.

The method comprises the following steps:

the method comprises the following steps: materials are continuously fed from the feeding port, a push rod of the control cylinder 53 moves downwards to each filter screen 41 to be concave in the middle, the speed reduction motor 51 drives the machine body 2 to vibrate longitudinally, at the moment, the feeding port is in an open state, the materials are filtered by the filter screens 41, so that the materials with different particle sizes are positioned in the corresponding filter screens 41, and the materials which can pass through the filter screen 41 at the lowest end can be directly discharged from the tail end discharge connecting pipe 72; step two: after the filter operates for a set time in a state corresponding to the first step, the air cylinder 53 is controlled to enable the push rod to move upwards, the plug 61 blocks the feeding hole, the filter screen 41 is in a state of protruding upwards in the middle, and the speed reducing motor 51 drives the machine body 2 to vibrate longitudinally to finish discharging; and (5) repeating the first step and the second step to complete the sorting and filtering of all the materials.

This filter not only can realize intermittent type nature pan feeding, makes the material that gets into in the fuselage 2 can be after fully sorting filter, carries out the sorting of new material again, has improved and has divided the sieve quality, has avoided arranging the filter blind area that the entering of material in-process new material brought.

In the process that the filter screen 41 is converted from the concave state to the convex state, before the concave storage area of the filter screen 41 disappears, the plug 61 has already finished plugging the feeding hopper 3, the push rod of the air cylinder 53 can continuously move upwards due to the existence of the compression spring 62, and when the filter screen 41 is completely in the state that the middle part of the filter screen is convex, the feeding hopper 3 is blocked and compressed, so that the materials are prevented from entering the filter screen 41 in the discharging process.

When the filter screen 41 is in a convex state, the machine body 2 is also in a shaking state, so that the materials partially blocking the filter screen 41 can be separated from the filter screen 41.

In the deformation process of the filter screen 41, although the aperture of the filter holes of the filter screen 41 is not changed, in the process of the conversion between the concave shape in the middle and the convex shape in the middle of the filter screen 41, the filter screen 41 shakes to complete the cleaning of the filter screen 41, and the problem of the blockage of the filter screen 41 is alleviated.

In the working process of the local vibrating screen filter, the top of the push rod of the air cylinder 53 can be intermittently inserted into the outlet of the feeding hopper 3, so that the phenomenon that the materials are blocked in the feeding hopper 3 to influence the continuity and the feeding amount of the feeding is avoided.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A vibration screening filter is characterized by comprising a machine base (1), a machine body (2), a feeding hopper (3) and a plurality of sorting mechanisms positioned in the machine body (2), wherein each sorting mechanism comprises a filter screen (41) and a discharge pipe (42) positioned on the filter screen (41), and the filter screens (41) are distributed at intervals from top to bottom; from top to bottom, the aperture of the filter hole of each filter screen (41) is gradually reduced; a speed reducing motor (51) is arranged on the machine base (1), a rotary drum (52) is fixedly arranged on an output shaft of the speed reducing motor (51), a plurality of guide blocks (56) are fixedly arranged on the inner wall of the rotary drum (52), an air cylinder (53) is arranged on the machine body (2), a cylinder body of the air cylinder (53) is fixedly connected with the machine body (2), a push rod of the air cylinder (53) is fixedly connected with the middle part of each filter screen (41), the cylinder body of the air cylinder (53) is rotatably connected in the rotary drum (52), a corrugated guide groove (54) matched with the guide blocks (56) is arranged on the outer wall surface of the cylinder body of the air cylinder (53), a plurality of buffer springs (55) are connected between the machine body (2) and the machine base (1), and the rotary drum (52) can drive the machine body (2) to do longitudinal reciprocating motion by rotation; the filter screen (41) is of a flexible net structure.

2. A vibrating screen filter according to claim 1 characterised in that the top of the push rod of the cylinder (53) is connected slidingly along the push rod axis with a plug (61) adapted to the inlet hopper (3), a compression spring (62) being connected between the plug (61) and the push rod.

3. A vibrating screen filter as claimed in claim 1 or 2, characterised in that the screen (41) is a gauze.

4. A vibrating screen filter according to claim 1 or 2, characterised in that the screen (41) is a wire mesh.

5. A vibrating screen filter according to claim 1 or 2, characterised in that a terminal material receiving plate (71) fixed on the body (2) is arranged below the lowest filter screen (41), the middle part of the terminal material receiving plate (71) protrudes upwards, and a terminal material outlet connecting pipe (72) is arranged between the terminal material receiving plate (71) and the lowest filter screen (41).