CN210880781U

CN210880781U - Feeding device and extruder

Info

Publication number: CN210880781U
Application number: CN201921095910.7U
Authority: CN
Inventors: 蔡君威; 程文广; 王伟伟
Original assignee: Shenzhen Senior Technology Material Co Ltd
Current assignee: Shenzhen Senior Technology Material Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-30
Anticipated expiration: 2029-07-12

Abstract

The utility model provides a feeding device and extruder, this feeding device includes: the hopper is provided with a stirring device in, and the discharge gate of hopper bottom is provided with the ooff valve. The utility model discloses a be provided with agitating unit in the hopper to discharge gate bottom the hopper is provided with the ooff valve, can effectively mix the solid-liquid compounding, and through the switching and the aperture of adjusting the ooff valve, the speed of control feeding device to the interior feed of extruder main part makes feed speed unanimous with extrusion speed, avoid piling up the feed inlet at the extruder main part and leading to extruding the relatively poor problem of cast sheet homogeneity because of the feed is too much, the too fast material that forms, and be favorable to improving the production efficiency of extruder.

Description

Feeding device and extruder

Technical Field

The utility model relates to the field of mechanical equipment, especially, relate to a feeding device and extruder.

Background

The principle of the extruder is that the screw rotates to generate pressure and shearing force, materials are fully plasticized and uniformly mixed, and the materials are molded through a neck mold under certain pressure. The material supply of the extruder is generally granular material or powder material, and some materials adopt solid-liquid mixture, for example, the material supply of the lithium ion battery wet diaphragm adopts the mixture of polyethylene powder material and paraffin oil. The feeding equipment of the extruder usually uses a conical hopper, solid-liquid mixture is easy to mix unevenly, the feeding speed cannot be controlled, and the extruding speed of the extruder cannot follow the feeding speed, so that the solid-liquid mixture is easy to settle at a feed opening and even causes blockage, the uniformity of extruded cast sheets is poor, and the production efficiency of the extruder can be influenced. In addition, some external screw feeding devices of the extruder not only require higher equipment precision, but also have relatively complex structures, higher cost and inconvenient disassembly and cleaning.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a feeding device and extruder to overcome among the prior art solid-liquid mixture that feeding device exists and mix inhomogeneous easily, feed speed can not be controlled, the extrusion speed of extruder can not follow up the technical problem of feed speed etc..

Therefore, the purpose of the utility model is realized through the following technical scheme:

a feeding device comprising: the hopper, be provided with agitating unit in the hopper, the discharge gate of hopper bottom is provided with the ooff valve.

As a further optional scheme of the feeding device, the stirring device comprises a stirring shaft vertically extending from the top to the bottom of the hopper and a stirring component fixed on the stirring shaft, and the top end of the stirring shaft is connected with a driving mechanism and is driven by the driving mechanism to rotate.

As a further alternative of the feeding device, the stirring component comprises a plurality of bent blade disc turbine stirring blades perpendicular to the stirring shaft.

As a further alternative of the feeding device, a top cover is arranged on the top of the hopper, and the driving mechanism is arranged on the top cover.

As a further alternative of the feeding device, the top cover is a foldable top cover.

As a further optional scheme of the feeding device, the feeding device further comprises an electric cabinet, the driving mechanism is a driving motor, and the driving mechanism is electrically connected with the electric cabinet.

As a further optional scheme of the feeding device, the switch valve is an electric ball valve, and the switch valve is electrically connected with the electric control box.

As a further optional scheme of the feeding device, the feeding device further comprises an annular fixed cover arranged on the periphery of the lower end of the hopper, and the top end of the annular fixed cover is connected with the hopper through a flange or a clamp.

As a further optional scheme of the feeding device, the annular fixed cover is made of transparent materials.

As a further extension to the technical proposal, the utility model also provides an extruder, which comprises an extruder main body and the feeding device.

The utility model discloses a feeding device and extruder have following beneficial effect:

the utility model discloses a be provided with agitating unit in the hopper to discharge gate bottom the hopper is provided with the ooff valve, can effectively mix the solid-liquid compounding, and through the switching and the aperture of adjusting the ooff valve, the speed of control feeding device to the interior feed of extruder main part makes feed speed unanimous with extrusion speed, avoid piling up the feed inlet at the extruder main part and leading to extruding the relatively poor problem of cast sheet homogeneity because of the feed is too much, the too fast material that forms, and be favorable to improving the production efficiency of extruder.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 shows a schematic perspective view of a feeding device provided in embodiment 1 of the present invention;

fig. 2 shows a schematic cross-sectional structural diagram of a feeding device provided in embodiment 1 of the present invention.

Description of the main element symbols:

100-a feeding device;

110-a hopper; 111-a discharge port;

120-a stirring device; 121-stirring shaft; 122-a stirring member;

130-a switch valve; 140-a drive mechanism; 150-a top cover; 160-an electric cabinet; 170-annular fixed cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example 1

The utility model provides a feeding device 100, as shown in fig. 1 and fig. 2, feeding device 100 can be applied to the extruder on, as feeding device 100 to the interior feed of extruder body. The extruder may be a screw extruder.

The feeding device 100 includes: the hopper 110 is provided with a stirring device 120 inside the hopper 110, and the discharge port 111 at the bottom of the hopper 110 is provided with an on-off valve 130, and the on-off valve 130 is an opening-degree-adjustable on-off valve 130.

The material is fed from the top of the hopper 110, discharged from the discharge port 111 at the bottom of the hopper 110, and fed into the extruder body; the stirring device 120 is arranged in the hopper 110 and is used for stirring the materials fed into the hopper 110, so that the materials can be more favorably taken from the top to the bottom of the hopper 110, and particularly, solid-liquid mixing can be effectively mixed; the switching valve 130 is arranged at the discharge port 111 at the bottom of the hopper 110, and the feeding speed of the feeding device 100 into the extruder body is controlled by adjusting the opening and closing of the switching valve 130, so that the feeding speed is consistent with the extruding speed, the problem that the extruded cast sheet is poor in uniformity due to the fact that materials are accumulated at the feed port of the extruder body due to too much feeding and too fast forming is avoided, and the production efficiency of the extruder is improved.

In this embodiment, the stirring device 120 includes a stirring shaft 121 extending vertically from the top to the bottom of the hopper 110, and a stirring component 122 fixed on the stirring shaft 121, wherein a driving mechanism 140 is connected to the top end of the stirring shaft 121 and is driven by the driving mechanism 140 to rotate.

Preferably, the stirring part 122 is disposed perpendicular to the stirring shaft 121. The stirring shaft 121 is rotated by the driving mechanism 140, thereby rotating the stirring member 122. In this embodiment, the stirring shaft 121 is vertically disposed at the center inside the hopper 110, and vertically extends from the top of the hopper 110 to the bottom of the hopper 110. The rotating diameter of the stirring part 122 is slightly smaller than the inner diameter of the hopper 110, and along with the continuous rotation of the stirring device 120, the material is taken from the top to the bottom of the hopper 110, and particularly for solid-liquid mixing, the solid-liquid mixing can be effectively mixed, so that the mixing is more uniform.

Preferably, in the present embodiment, the stirring component 122 is a plurality of bent blade disc turbine stirring blades perpendicular to the stirring shaft 121. The plurality of bent blade disc turbine stirring blades can be arranged into two layers, three layers, four layers or more layers at equal intervals. The stirring component 122 can stir the materials more sufficiently by adopting a plurality of bent blade disc turbine stirring blades, can more easily perform the rotary cutting function on the materials with larger sizes possibly mixed in the materials in the rotating process, and can rotary cut the larger materials into the materials with smaller sizes.

Of course, the stirring component 122 may also take other forms, for example, the stirring component 122 may be a plurality of layers of two stirring blades symmetrically disposed with the stirring shaft 121 as the symmetry axis, or a plurality of layers of three stirring blades symmetrically disposed with the stirring shaft 121 as the symmetry axis. Also for example, the agitating members 122 may be a plurality of laterally disposed T-shaped structures. The bottom of the T-shaped structure is connected with the stirring shaft 121, and is preferably fixed on the stirring shaft 121 by welding; furthermore, the T-shaped structure can be formed by welding two vertical steel bars or polymer plastic bars, and the T-shaped structures are arranged in a staggered mode. For example, the stirring member 122 may be a combination of a stirring blade and a T-shaped structure, and the arrangement may be as desired.

The material of the stirring shaft 121 and the stirring member 122 may be metal such as stainless steel or alloy, or plastic material with high hardness such as teflon.

The hopper 110 of this embodiment is preferably made of stainless steel, but may be made of other metal materials such as alloy materials with good corrosion resistance.

In this embodiment, the top cover 150 is disposed at the top of the hopper 110, so that the material can be prevented from splashing from the top of the hopper 110 in the process of being stirred by the stirring device 120; when it is desired to feed material into the hopper 110, the top cover 150 is simply opened. The driving mechanism 140 is disposed on the top cover 150.

Preferably, the top cover 150 is a foldable top cover 150; the driving mechanism 140 is disposed at the center of the top cover 150. For example, the top cover 150 includes two top plates that are pivotally connected, and each top plate can be folded toward the direction of the pivotal connection from one end away from the pivotal connection; this allows the top cover 150 to be folded open or both top covers to be folded open simultaneously as desired for feeding into the magazine 110. The top cover 150 may further include at least three top panels arranged side by side, and any two adjacent top panels are hinged to each other. Furthermore, two handles can be symmetrically arranged on the top cover 150, so that the top cover can be lifted conveniently.

The driving mechanism 140 may be a driving motor, or may be another mechanical arm that drives the stirring device 120 to rotate manually.

Preferably, in this embodiment, the feeding device 100 further includes an electric cabinet 160, and the driving mechanism 140 is a driving motor. The electric cabinet 160 is connected with an external power supply through an electric wire. The driving motor is electrically connected with the electric cabinet 160, and the working power of the driving motor is adjusted and controlled through the electric cabinet 160, so that the stirring speed of the stirring device 120 is adjusted and controlled, and different requirements are met.

Preferably, in this embodiment, the feeding device 100 further comprises an annular fixing cover 170 disposed on the outer periphery of the lower end of the hopper 110, and the top end of the annular fixing cover 170 may be connected to the hopper 110 by a flange or a clip.

It should be noted that the top end of the annular fixing cover 170 is connected to the hopper 110 through a flange or a clamp, and the bottom end of the annular fixing cover 170 is also connected to the feed inlet of the extruder body through a flange or a clamp (not shown), so as to facilitate the detachment and installation of the annular fixing cover 170, the hopper 110 and the extruder body. Through the setting of this fixed cover of annular 170, play on the one hand and make feeding device 100 connect the effect of fixing on the extruder body, on the other hand can prevent effectively that the material from splashing when the discharge gate 111 of hopper 110 bottom feeds to the extruder body in and causing waste and dust to spread and cause environmental pollution in the air all around.

Further, in order to ensure the sealing property at the connection of the top end of the annular fixing cover 170 and the hopper 110, a rubber packing may be provided in the flange or the clip.

Further, in order to better observe the feeding condition of the discharge port 111 of the hopper 110 to the feeding port of the extruder body, so as to better adjust the opening degree of the on-off valve 130, the annular fixing cover 170 of this embodiment is made of a transparent material, such as a high temperature resistant transparent PVC (polyvinyl chloride) material or a ceramic material. It is of course also possible to provide a suitably dimensioned transparent viewing window in the annular retaining cap 170.

The on-off valve 130 may be a ball valve, a butterfly valve, a plug valve, a gate valve, a plunger valve, a throttle valve, or the like, and the opening-degree-adjustable on-off valve 130 may be a normal manually operated opening-degree-adjustable on-off valve 130, or may be an electrically, hydraulically, or actuated opening-degree-adjustable on-off valve 130.

Preferably, in this embodiment, the switch valve 130 is an electric ball valve, the electric ball valve is electrically connected to the electric cabinet 160, and the opening of the electric ball valve is controlled by the electric cabinet 160, so that the operation of the worker is more convenient.

In this embodiment, the electric cabinet 160 is mounted on the outer side surface of the annular fixing cover 170, but may be mounted on the outer side surface of the upper end of the hopper 110.

Further, in this embodiment, a filter screen (not shown in the figure) can be further arranged at the discharge port 111 at the bottom of the hopper 110, and the mesh size of the filter screen is set according to actual needs, so that the material can be filtered, the material meeting the requirement and having a proper granularity enters the extruder body, the larger size is intercepted, and the material on the filter screen inside the hopper can be cleaned regularly. The filter screen may be disposed below the on-off valve 130, and may also be disposed above the on-off valve 130.

It can be understood that, when the solid-liquid mixture is fed into the hopper 110 of the feeding device 100 of this embodiment, the circuit between the electric cabinet 160 and the external power supply is switched on, the electric cabinet controls the driving motor on the top cover 150 to operate, so as to drive the stirring shaft 121 and the stirring component 122 to rotate, and adjust the rotation speed of the stirring shaft 121 and the rotation speed of the stirring component 122, so as to mix and stir the solid-liquid mixture entering the hopper 110, and the mixed material is fed into the extruder body through the discharge hole 111 of the hopper 110. The feeding condition of the feeding device 100 to the feed port of the extruder body is observed through the transparent annular fixed cover 170, and the opening degree of the on-off valve 130 is adjusted to control the feeding speed. After use, the hopper 110, the annular fixing cover 170 and the extruder body are disassembled respectively, so that the insides of the hopper 110 and the annular fixing cover 170 can be cleaned conveniently.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A feeding device comprising: the hopper is characterized in that a stirring device is arranged in the hopper, and a discharge hole at the bottom of the hopper is provided with a switch valve;

the stirring device comprises a stirring shaft vertically extending from the top to the bottom of the hopper and a stirring part fixed on the stirring shaft, and the top end of the stirring shaft is connected with a driving mechanism and driven by the driving mechanism to rotate;

the stirring component comprises a plurality of bent blade disc turbine stirring blades vertical to the stirring shaft.

2. Feeding device according to claim 1, characterized in that a top cover is arranged on top of the hopper, and the driving mechanism is arranged on the top cover.

3. Feeding device according to claim 2, characterized in that the cover is a foldable cover.

4. The feeding device of claim 1, further comprising an electric cabinet, wherein the driving mechanism is a driving motor, and the driving mechanism is electrically connected with the electric cabinet.

5. Feeding device according to claim 4, characterized in that the on-off valve is an electric ball valve, which is electrically connected with the electric control box.

6. The feeding device of claim 1, further comprising an annular fixing cover arranged on the periphery of the lower end of the hopper, wherein the top end of the annular fixing cover is connected with the hopper through a flange or a clamp.

7. Feeding device according to claim 6, characterized in that the annular stationary shield is made of a transparent material.

8. An extruder comprising an extruder body and a feeding device according to any one of claims 1 to 7.