CN206066913U - Multi-screw extruder - Google Patents

Abstract

The multi-screw extruder that this utility model is provided, including：Feeding mouth, hybrid chamber and extruding cavity, the feeding mouth are connected with the entrance of the hybrid chamber, and the outlet of the hybrid chamber is connected with the entrance of the extruding cavity；The mixing intracavity is vertically provided with the first screw rod group, the first screw rod that first screw rod group includes counter-rotating and the second screw rod for rotating forward；Intracavity is horizontally disposed the second screw rod group for the extrusion, and second screw rod group includes at least one the 3rd screw rod for rotating forward.The multi-screw extruder of the application is due to arranging hybrid chamber, and the screw rod rotated by multiple different directions is realized spinning upside down, and makes mixing more uniform.

Description

Multi-screw extruder

Technical field

This utility model is related to extrusion equipment, more particularly to a kind of multi-screw extruder.

Background technology

Screw extruder is that the pressure and shearing force for producing is rotated by screw rod, and material can be allowd fully to be plastified And uniform mixing, by mouth mold molding.

The working mechanism of screw-type extruder is to rotate produced pressure and shearing force by screw rod, can be so that material can Fully to be plastified and uniformly be mixed, by mouth mold molding；So just can be completed using an extruder sometimes simultaneously Mixing, the series of process such as plasticizing and molding, so as to continuously be produced.

The screw-rod structure form of plastic extruder is more, is divided into single screw rod, twin screw and multiscrew, is to adapt to screw rod squeezing The characteristics of going out each section, designs its different structure form at each section, with improve product quality and improve production efficiency.

Current extruder drives material along screw rod to output flow generally using the rotation of one or more screw rods, Mixed in flow process, mixed not uniform enough.

Utility model content

For defect of the prior art, this utility model provides a kind of multiscrew extrusion machine of mix homogeneously.

The multi-screw extruder that this utility model is provided, including：Feeding mouth, hybrid chamber and extruding cavity, the feeding mouth with The entrance connection of the hybrid chamber, the outlet of the hybrid chamber are connected with the entrance of the extruding cavity；The mixing intracavity is along perpendicular Nogata is to being provided with the first screw rod group, the first screw rod that first screw rod group includes counter-rotating and the second spiral shell for rotating forward Bar；Intracavity is horizontally disposed the second screw rod group for the extrusion, and second screw rod group includes that at least one rotates forward The 3rd screw rod.

Further, first screw rod group includes first screw rod and is arranged on the multiple of the first screw rod circumference Second screw rod.

Further, the 3rd screw rod is multiple.

Further, also including chamber is clamp-oned, the feeding mouth is connected with the entrance for clamp-oning chamber, described to clamp-on going out for chamber Mouth is connected with the entrance of the hybrid chamber, and the intracavity of clamp-oning is vertically arranged with the 4th screw rod for rotating forward.

Further, the 4th screw rod is multiple.

Further, the outer wall of the extruding cavity is wound with electromagnetic induction coil, and the 3rd screw rod is ferromagnet.

Further, the outlet of the extruding cavity is connected with mould.

The multi-screw extruder that this utility model is provided, including：Feeding mouth, hybrid chamber and extruding cavity, the feeding mouth with The entrance connection of the hybrid chamber, the outlet of the hybrid chamber are connected with the entrance of the extruding cavity；The mixing intracavity is along perpendicular Nogata is to being provided with the first screw rod group, the first screw rod that first screw rod group includes counter-rotating and the second spiral shell for rotating forward Bar；Intracavity is horizontally disposed the second screw rod group for the extrusion, and second screw rod group includes that at least one rotates forward The 3rd screw rod.

When screw rod rotates, material can be moved under the squeezing action on screw spiral inclined-plane axially along a screw, in the application, If screw rod vertical direction is arranged, when rotating forward, material is moved from the top down, and during counter-rotating, material is moved from bottom to top； If screw rod is horizontally disposed with, when rotating forward, material is moved to the Way out of screw rod place cavity.

Above-mentioned multi-screw extruder operation principle is as follows：From feeding mouth addition material in hybrid chamber with the first screw rod group In the first screw rod and the second screw rod upset, premixed, moved in the presence of the first screw rod from bottom to top, in the second screw rod In the presence of from up to down move, so as to be sufficiently mixed in hybrid chamber, form uniform material.The outlet of hybrid chamber connects Extrusion chamber is connected to, mixed material enters extrusion chamber, in the presence of the 3rd screw rod, further mixes, and squeezing in screw rod Under pressure, move to the outlet of extrusion chamber, and extrude from the outlet of extrusion chamber.Therefore, the multi-screw extruder of the application due to Hybrid chamber is set, and the screw rod rotated by multiple different directions is realized spinning upside down, and makes mixing more uniform.

Description of the drawings

In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right Needed for specific embodiment or description of the prior art, accompanying drawing to be used is briefly described.In all of the figs, it is similar Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to actual ratios Draw.

The structural representation of the multi-screw extruder that Fig. 1 is provided for one embodiment of this utility model；

Fig. 2 is the A-A sectional views of multi-screw extruder in Fig. 1.

Specific embodiment

The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this New protection domain.

It should be noted that unless otherwise stated, technical term used in this application or scientific terminology should be this reality The ordinary meaning understood with new one of ordinary skill in the art.

See figures.1.and.2, in one embodiment, the multi-screw extruder that this utility model is provided, including：Feeding mouth 100th, hybrid chamber 200 and extruding cavity 300, the feeding mouth 100 are connected with the entrance of the hybrid chamber 200, the hybrid chamber 200 Outlet connect with the entrance of the extruding cavity 300；210 groups of first screw rod is provided with vertically in the hybrid chamber 200, 210 groups of first screw rod includes first screw rod 210 and the second screw rod 220 for rotating forward of counter-rotating；The extruding cavity It is horizontally disposed in 300 to have 220 groups of the second screw rod, 220 groups of second screw rod include at least one rotate forward Three screw rods 310.

Above-mentioned multi-screw extruder operation principle is as follows：From feeding mouth 100 addition material in hybrid chamber 200 with first The first screw rod 210 and the second screw rod 220 in 210 groups of screw rod overturns, and is premixed.If the middle direction of arrow is the mobile side of material To, moved in the presence of the first screw rod 210 from bottom to top, from up to down moved in the presence of the second screw rod 220, so as to It is sufficiently mixed in hybrid chamber 200, is formed uniform material.The outlet of hybrid chamber 200 is connected with extrusion chamber, mixed thing Material enters extrusion chamber, in the presence of the 3rd screw rod 310, further mixes, and under the extruding force of screw rod, going out to extrusion chamber Mouth is mobile, and extrudes from the outlet of extrusion chamber.Therefore, the multi-screw extruder of the application is due to arranging hybrid chamber, and by many The screw rod that individual different directions are rotated is realized spinning upside down, and makes mixing more uniform.

Specifically, in order that improving mixed effect, make material mixing more uniform, the multi-screw extruder of the present embodiment 210 groups of first screw rod includes first screw rod 210 and is arranged on four the second screw rods of 210 circumference of the first screw rod 220, material from the bottom of hybrid chamber 200 when, mixed from four circumferentially intermediate movements, in the presence of the first screw rod 210 to Upper movement, outreach backward surrounding dispersion, and falls in the presence of the second screw rod 220 and deadweight, so as to circulate mixing, carries High mixed effect.

Further, the 3rd screw rod 310 is multiple, further increases the immixture in extrusion chamber, and improves Extrusion force, improves discharging speed.

In order to prevent material from blocking from 100 reverse mobile or material of feeding mouth in feeding mouth 100 in hybrid chamber 200, enter One step ground, is additionally provided with the present embodiment and clamp-ons chamber 400, and the feeding mouth 100 is connected with the entrance for clamp-oning chamber 400, institute State and clamp-on the outlet in chamber 400 and connect with the entrance of the hybrid chamber 200, it is described clamp-on to be vertically arranged with chamber 400 rotate forward The 4th screw rod 410.In the presence of the 4th screw rod 410, the unidirectional movement of material is realized, can be stable add materials and is prevented Only material inversely moves to feeding mouth 100.

It should be appreciated that in order to improve processing speed and inlet amount, the 4th screw rod 410 can be multiple.

On the multi-screw extruder of the application, the outer wall of the extruding cavity 300 is wound with electromagnetic induction coil (in figure not Illustrate), the 3rd screw rod 310 is ferromagnet.The 3rd screw rod 310 is acted on by electromagnetic induction to generate heat, so as to carry out material Heating, makes material plasticizing, mixes, and from outlet extrusion.

Further, the outlet of the extruding cavity 300 can also be connected with mould 500, and the material of extrusion is directly entered Molding in mould 500.

Here, it is to be noted that, function that this utility model is related to, algorithm, method etc. are only the routine of prior art Adaptability application.Therefore, this utility model, for the improvement of prior art, is substantially the annexation between hardware, rather than Although it is related to some functions, algorithm, method for function, algorithm, method itself, namely this utility model, but and not comprising right The improvement that function, algorithm, method itself is proposed.This utility model for function, algorithm, method description, be in order to more preferable This utility model is illustrated, to be better understood from this utility model.

In the description of the present application, it is to be understood that term " on ", D score, "front", "rear", "left", "right", " water It is flat ", " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, merely to just In description this utility model and simplified description, rather than indicate or imply that the device or element of indication there must be specifically side Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important Property or the implicit quantity for indicating indicated technical characteristic.In description of the present utility model, " multiple " are meant that two More than, unless otherwise expressly limited specifically.

In description of the present utility model, a large amount of details are illustrated.It is to be appreciated, however, that reality of the present utility model Apply example to put into practice in the case where there is no these details.In some instances, known method, knot is not been shown in detail Structure and technology, so as not to obscure the understanding of this description.

In the description of this specification, specific features, structure, material or feature can be in any one or more embodiments Or combined in example in an appropriate manner.Additionally, in the case of not conflicting, this can be said by those skilled in the art The feature of different embodiments or example and different embodiments or example described in bright book is combined and combines.

Finally it should be noted that：Various embodiments above is only illustrating the technical solution of the utility model, rather than which is limited System；Although being described in detail to this utility model with reference to foregoing embodiments, one of ordinary skill in the art should Understand：Which still can be modified to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of each embodiment technical scheme of type, which all should be covered in the middle of the scope of claim of the present utility model and description.

Claims (7)

1. a kind of multi-screw extruder, it is characterised in that include：Feeding mouth, hybrid chamber and extruding cavity, the feeding mouth with it is described The entrance connection of hybrid chamber, the outlet of the hybrid chamber are connected with the entrance of the extruding cavity；The mixing intracavity is along vertically side To being provided with the first screw rod group, the first screw rod that first screw rod group includes counter-rotating and the second screw rod for rotating forward； The extrusion intracavity is horizontally disposed the second screw rod group, second screw rod group include at least one rotate forward the Three screw rods.

2. multi-screw extruder according to claim 1, it is characterised in that first screw rod group includes first spiral shell Bar multiple second screw rods circumferential with first screw rod is arranged on.

3. multi-screw extruder according to claim 1, it is characterised in that the 3rd screw rod is multiple.

4. multi-screw extruder according to claim 1, it is characterised in that also including clamp-oning chamber, the feeding mouth and institute The entrance connection for clamp-oning chamber is stated, the outlet for clamp-oning chamber is connected with the entrance of the hybrid chamber, and the intracavity of clamp-oning vertically sets It is equipped with the 4th screw rod for rotating forward.

5. multi-screw extruder according to claim 4, it is characterised in that the 4th screw rod is multiple.

6. multi-screw extruder according to claim 1, it is characterised in that the outer wall of the extruding cavity is wound with electromagnetism sense Coil is answered, the 3rd screw rod is ferromagnet.

7. multi-screw extruder according to claim 1, it is characterised in that the outlet of the extruding cavity is connected with shaping mould Tool.