CN218803331U - Hot-melt extrusion particle screening device - Google Patents

Abstract

The utility model discloses a hot melt extrusion granule sieving mechanism, include base and multiple screening mechanism, dial material mechanism, at least three blanking structure. The multiple screening mechanism fixing frame is arranged on the base; the multiple screening mechanism comprises at least three charging covers which are sequentially erected upwards on the top of the base, and a coarse screen, a middle screen and a fine screen which are fixedly connected into the three charging covers respectively from top to bottom. The material stirring mechanism provides rotary thrust for extruded particles in each charging cover. At least three blanking structures are respectively arranged on the three charging covers; each blanking structure comprises a discharging inserting plate movably arranged on the outer surface of the charging cover in a penetrating mode and a blanking hopper fixedly arranged on the outer surface of the charging cover and corresponding to the discharging inserting plate. The utility model discloses a realize that the hot melt extrudes multistage whereabouts of granule formula of flowing and select separately to realize that the hot melt extrudes the granule and in succession multistage screening processing for the purpose, can improve the hot melt and extrude the variety of granule screening efficiency and screening specification.

Description

Hot-melt extrusion particle screening device

Technical Field

The utility model relates to a granule screening technical field specifically is a hot melt extrusion granule sieving mechanism.

Background

The hot melt extrusion technique is a continuous process for uniformly dispersing the API in the polymer-based carrier using an extruder, and has the advantages of simple process, continuous operation, high production efficiency and on-line monitoring. At present, particles produced by a hot-melt extrusion technology have different sizes, and in order to meet the use requirement of subsequent specifications of the extruded particles, the extruded particles need to be sieved by the same size.

At present, when extruding the granule to the hot melt and screening, the filter screen dish that often adopts vibration or shake mode sieves rolling extrusion granule, this mode has satisfied the screening effect that the granule was extruded to the hot melt, but the specification of screening often is two types of specifications, extrude the granule and fall the hot melt of filter screen dish based on the hot melt on the filter screen dish promptly and extrude the granule, hot melt on the filter screen dish is extruded the granule and is when the segmentation screening, need change the filter screen dish in different apertures and carry out the secondary screening, this process has reduced the screening efficiency that the granule was extruded to the hot melt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot melt extrusion granule sieving mechanism is through setting up multiple screening mechanism, dialling material mechanism and blanking structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hot-melt extruded particle screening device comprises a base;

the screening device further comprises:

the fixing frame of the multiple screening mechanism is arranged on the base; the multiple screening mechanism comprises at least three charging covers which are sequentially erected upwards on the top of the base, and a coarse screen, a middle screen and a fine screen which are fixedly connected with the three charging covers respectively from top to bottom;

the material stirring mechanism is used for providing rotary thrust for extruded particles in each charging cover; and

at least three blanking structures which are respectively arranged on the three charging covers; every blanking structure is in including the activity runs through the setting the cover surface of feeding's picture peg and fixed mounting of unloading are in the cover surface of feeding just corresponds the lower hopper of picture peg position of unloading.

Preferably, a first upright post is fixedly connected between the charging covers positioned at the bottom and the base, and a second upright post is fixedly mounted between every two adjacent charging covers.

Preferably, the material shifting mechanism comprises a rotating motor fixedly mounted on the base, a shaft rod fixedly mounted at an output shaft end of the rotating motor, and at least three material shifting plates fixedly mounted on the outer circumferential wall of the shaft rod.

Preferably, the three material shifting plates arranged on the shaft rod are respectively in movable contact with the upper surfaces of the coarse screen, the middle screen and the fine screen.

Preferably, the shaft rod sequentially penetrates through the fine screen, the middle screen and the coarse screen from bottom to top, and the shaft rod is respectively and rotationally connected with the coarse screen, the middle screen and the fine screen through corresponding bearings.

Preferably, the outer surface of each charging cover is provided with a plugging port matched with each discharging plug board, and the plugging ports are communicated with the discharging hoppers.

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

1. the utility model discloses, through setting up multiple screening mechanism and dialling material mechanism, utilize the setting of the multistage screening specification of multiple screening mechanism under, dial material mechanism and can drive the hot melt and extrude the multistage whereabouts of granule realization formula and select separately in multiple screening mechanism to realize that the hot melt extrudes the continuous multistage screening processing of granule as the purpose, improve the hot melt and extrude the variety of granule screening efficiency and screening specification.

2. The utility model discloses, through setting up blanking structure, provide the ability that flows based on hot melt extrusion granule screening in multiple screening mechanism by dialling material mechanism, the unloading passageway that cooperation blanking structure provided can satisfy the hot melt and extrude the convenience that granule multistage screening was got the material.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a split view of the multiple sifting mechanism and the kickoff mechanism of FIG. 1 in accordance with the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a base; 2. a multiple screening mechanism; 21. a charging cover; 22. coarse screening; 23. a middle screen mesh; 24. a fine screen; 3. a material poking mechanism; 31. a rotating electric machine; 32. a shaft lever; 33. a material stirring plate; 34. a material passing groove; 4. a blanking structure; 41. unloading and inserting plates; 42. a feeding hopper; 5. a first upright post; 6. and a second upright.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a hot-melt extrusion particle screening device comprises a base 1.

Above-mentioned hot melt extrusion granule sieving mechanism still includes multiple screening mechanism 2, dials material mechanism 3 and at least three blanking structure 4.

Wherein, the multiple screening mechanism 2 is fixed on the base 1; the multiple screening mechanism 2 comprises at least three charging covers 21 which are sequentially erected upwards at the top of the base 1, and a coarse screen 22, a middle screen 23 and a fine screen 24 which are respectively fixedly connected with the three charging covers 21 from top to bottom; the thickness, the medium thickness and the fine thickness represent the gradually increasing change of the mesh number of the screen, so as to meet the diversity of multi-specification screening of hot-melt extruded particles. The charging hood 21 in this embodiment is of a hollow structure.

A first upright post 5 is fixedly connected between the charging cover 21 positioned at the bottom and the base 1, and a second upright post 6 is fixedly arranged between two adjacent charging covers 21; in this embodiment, at least four sets of the first upright posts 5 and the second upright posts 6 are adopted, so that the base 1 and the three charging covers 21 are sequentially supported.

The material stirring mechanism 3 provides rotary thrust for extruded particles in each charging cover 21; the material shifting mechanism 3 comprises a rotating motor 31 fixedly arranged on the base 1, a shaft rod 32 fixedly arranged at the output shaft end of the rotating motor 31 and at least three material shifting plates 33 fixedly arranged on the outer circumferential wall of the shaft rod 32.

Three kickoff plates 33 arranged on the shaft lever 32 are respectively in movable contact with the upper surfaces of the coarse screen 22, the middle screen 23 and the fine screen 24.

The shaft lever 32 sequentially penetrates through the fine screen mesh 24, the middle screen mesh 23 and the coarse screen mesh 22 from bottom to top, and the shaft lever 32 is respectively connected with the coarse screen mesh 22, the middle screen mesh 23 and the fine screen mesh 24 in a rotating mode through corresponding bearings.

Specifically, when hot melt extrusion particles are required to be screened, the cooled hot melt extrusion particles can be placed in the highest charging cover 21, namely between the charging cover 21 and the coarse screen 22, and the driving of the rotating motor 31 is controlled to drive the shaft rod 32 and the shifting plate 33 on the shaft rod 32 to axially rotate, the shifting plate 33 can enable the hot melt extrusion particles filled between the charging cover 21 and the coarse screen 22 to have fluidity, so that the hot melt extrusion particles smaller than the meshes of the coarse screen 22 can fall into the charging cover 21 in the middle by utilizing the meshes of the coarse screen 22, the actions of the shifting plate 33 are synchronized, the hot melt extrusion particles can fall into the charging cover 21 at the bottom again, and at the moment, the hot melt extrusion particles can be screened to three specifications.

It should be noted that, the material-shifting mechanism 3 of one driving device provides the driving based on the multi-stage screening of the hot-melt extruded particles in the multi-screening mechanism 2, and the cost of the driving device can be reduced while the requirement of the improvement of the versatility and efficiency of the hot-melt extruded particle screening is met.

Wherein, at least three blanking structures 4 are respectively arranged on the three charging covers 21; each blanking structure 4 comprises a discharging inserting plate 41 which is movably arranged on the outer surface of the charging cover 21 in a penetrating way and a discharging hopper 42 which is fixedly arranged on the outer surface of the charging cover 21 and corresponds to the position of the discharging inserting plate 41.

The outer surface of each charging cover 21 is provided with a plugging port matched with each discharging flashboard 41, and the plugging ports are communicated with a discharging hopper 42. The plugging port provides a discharge passage for hot-melt extruded particles after screening.

Specifically, when hot melt extruded particles after screening need to be taken out, the discharging inserting plate 41 on the blocking opening can be opened, the material stirring mechanism 3 can be controlled to rotate and drive, the material stirring mechanism 3 provides certain thrust for the hot melt extruded particles after screening, the hot melt extruded particles can be discharged through the blocking opening and the discharging hopper 42, and the discharged hot melt extruded particles can be accepted by a collecting tool.

It is worth mentioning that when hot melt extrusion particles screened in the charging cover 21 can not be completely discharged, when the screening device of the application is used, the inclination of the base 1 and the ground can be adjusted in advance by a person in the field, namely, the inclination angle corresponds to the position of the plugging port, and when the hot melt extrusion particles are stirred by the subsequent material stirring mechanism 3, the discharging fluency of the hot melt extrusion particles can be improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A hot-melt extruded particle screening device, which comprises a base (1);

it is characterized in that the screening device further comprises:

the multiple screening mechanism (2) is fixedly arranged on the base (1); the multiple screening mechanism (2) comprises at least three charging covers (21) which are sequentially erected upwards on the top of the base (1), and a coarse screen (22), a middle screen (23) and a fine screen (24) which are fixedly connected with the three charging covers (21) from top to bottom respectively;

a kick-off mechanism (3) which provides rotational thrust to the extruded particles within each of the charging hoods (21); and

at least three blanking structures (4) respectively arranged on the three charging covers (21); every blanking structure (4) run through including the activity and set up the shroud of feeding (21) surface unload picture peg (41) and fixed mounting in the shroud of feeding (21) surface just corresponds unload lower hopper (42) of picture peg (41) position.

2. The hot melt extruded particle screening apparatus of claim 1, wherein: the base is characterized in that the bottom of the charging cover (21) is fixedly connected with a first upright post (5) between the bases (1), and a second upright post (6) is fixedly mounted between every two adjacent charging covers (21).

3. A hot melt extruded particle screening apparatus as claimed in claim 1, wherein: the material stirring mechanism (3) comprises a rotating motor (31) fixedly mounted on the base (1), a shaft rod (32) fixedly mounted at the output shaft end of the rotating motor (31) and at least three stirring plates (33) fixedly mounted on the outer circumferential wall of the shaft rod (32).

4. A hot melt extruded particle screening apparatus as claimed in claim 3, wherein: the three kick-out plates (33) arranged on the shaft lever (32) are respectively in movable contact with the upper surfaces of the coarse screen (22), the middle screen (23) and the fine screen (24).

5. A hot melt extruded particle screening apparatus as claimed in claim 3, wherein: the shaft rod (32) sequentially penetrates through the fine screen (24), the middle screen (23) and the coarse screen (22) from bottom to top, and the shaft rod (32) is respectively in rotating connection with the coarse screen (22), the middle screen (23) and the fine screen (24) through corresponding bearings.

6. A hot melt extruded particle screening apparatus as claimed in claim 1, wherein: each material loading cover (21) is provided with a plugging port on the outer surface, which is matched with each material unloading inserting plate (41), and the plugging ports are communicated with the discharging hopper (42).

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