CN2501675Y

CN2501675Y - Spiral extrusion machine with multiple dividing slot

Info

Publication number: CN2501675Y
Application number: CN01260951U
Authority: CN
Inventors: 尹陈全
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-20
Filing date: 2001-09-20
Publication date: 2002-07-24
Anticipated expiration: 2011-09-20

Abstract

Disclosed is a screw extruder with a plurality of splitter boxes, which main includes that a screw stem in a machine barrel is driven by an electric motor, the plastic from a feed hopper is extruded, impelled, and branched by the screw stem, the external circumference of the machine barrel is provided with a heating loop which is partly coiling the machine barrel, the thread section of the screw stem therein is divided into front section and back section, the middle section of the machine barrel is a plasticizing house with machine barrel splitter boxes, the plasticizing house is divided into a multilevel plasticizing house by the screw stems, another heating loop is arranged on the external circumference of the plasticizing house. Since the product improves the stress of the screw stem, the number of revolution is improved under the same power, and the impelling speed of the plastic is increased, by which the output and the craft is improved, and the cost is reduced.

Description

The extruser that has a plurality of splitter boxs

Technical field

The utility model relates to extruder, refers to a kind of extruser that has a plurality of splitter boxs with plastics heating, plasticizing especially.

Background technology

Referring to Fig. 1-2, for my application, the patent No. is the modified extruder of " 00208993.9 ", it comprises: a screw rod 3 places the periphery circle to be evenly equipped with in the machine barrel 4 of a plurality of heating collars 5, one side of machine barrel 4 is connected with a plasticizing chamber 7 with a plurality of splitter boxs, this plasticizing chamber 7 is rectangle, and its top and bottom are provided with heating plate 8; Have in the plasticizing chamber 7 of a plurality of splitter boxs and divide three grades at least, the splitter box in each grade increases progressively by Geometric Sequence; As being provided with in the first order to divide in three splitter boxs, the second level to have to divide in six splitter boxs, the third level 12 splitter boxs are arranged.During work, the plastics that a motor 13 pairs of screw rods of drive enter in the machine barrel 4 push, advance, plastics are progressively heated, plastify, and by after the plastics processing of three grades of splitter boxs, reach the purpose that is plastified fully.

But should plastify indoor three grades of splitter boxs more complicated on manufacturing process, and time-consuming taking a lot of work, the cost height is again because screw rod still is long, the torsion that produces is big, and the consumption driving force is then big, and the chamber of plasticizing is rectangle again, be difficult for temperature control in the plasticizing process, have the dead angle, so the total quality of influence plasticizing.

Summary of the invention

The purpose of this utility model is: provide a kind of the screw flight section is divided into two sections of front and back, and the machine barrel stage casing is provided with the plasticizing chamber of being made up of a plurality of screw rod splitter boxs and machine barrel splitter box, can directly implement the shunting plastics processing to plastics, and can enlarge the contact area of material, dead angle in avoiding plastifying, can simplify technology, reduce cost, improve the extruser that has a plurality of splitter boxs of plasticizing effect.

The purpose of this utility model is achieved in that a kind of extruser that has a plurality of splitter boxs, comprise that mainly a driven by motor places the screw rod in the machine barrel that the plastics that enter from feed hopper are pushed propelling, shunting plasticizing, and the machine barrel outer peripheral edges are provided with the heating collar that partly is wound on, it is characterized in that: this screw flight section is divided into two sections of front and back, the machine barrel stage casing is the plasticizing chamber that has a plurality of machine barrel splitter boxs, this plasticizing chamber is divided into multistage plasticizing chamber by a plurality of screw rod splitter boxs, is provided with the heating collar that is wound on the outer peripheral edges of this plasticizing chamber in addition.

The utility model also can be realized by following measure: above-mentioned screw rod splitter box is between three grades of plasticizing chambers, and the plasticizing room temperature that constitutes with machine barrel splitter box each interval is slightly higher than the temperature of two sections of machine barrel front and back.

Above-mentioned screw rod splitter box is to be evenly equipped with the circular arc elongated slot that several concave on the periphery circle of screw rod, and this screw rod splitter box is 2.

Above-mentioned machine barrel splitter box is to be evenly equipped with the circular arc elongated slot that several concave on the interior Zhou Yuan of machine barrel, and this machine barrel splitter box is 3.

The utility model has the advantages that: because the screw flight section is divided into two sections, the three grade plasticizing chambers of stage casing for shunting, then improved the stressed of screw rod, with improving revolution under the constant power, and then the fltting speed of raising plastics, reach the purpose that improves output, in the plasticizing process, material can directly carry out shear-mixed, shunting and plastics processing by machine barrel splitter box and screw rod splitter box, not only enlarged the contact area of material, and avoided the dead angle phenomenon, and technology is simple, cost is low, has improved the plasticizing efficiency of complete machine effectively.

Description of drawings

Fig. 1, be the prior art structural representation.

Fig. 2, be A-A, B-B, the C-C cutaway view among Fig. 1.

Fig. 3, be the utility model structural representation.

Fig. 4, be the A-A cutaway view among Fig. 3.

Fig. 5, be the B-B cutaway view among Fig. 3.

The specific embodiment

Referring to Fig. 3-5, a kind of extruser that has a plurality of splitter boxs, comprise that mainly a motor 1 drives the 3 pairs of plastics that enter from feed hopper 2 of screw rod that place in the machine barrel 4 and pushes propelling, the shunting plastics processing, the outer peripheral edges upper part of machine barrel 4 is provided with the heating collar 5 that is wound on, this heating collar 5 places the front and back section of machine barrel 4, and the thread segment of above-mentioned screw rod 3 is divided into two section 31 of front and back, 32, the stage casing of machine barrel 4 is then for having the plasticizing chamber 7 of a plurality of machine barrel splitter boxs 41, this plasticizing chamber 7 is divided into three grades of plasticizing chamber E by a plurality of screw rod splitter boxs 33, F, G is provided with the heating collar 8 that is wound in addition on the outer peripheral edges of this plasticizing chamber 7.

Above-mentioned screw rod splitter box 33 is between three grades of plasticizing chambers 7, and the plasticizing room temperature that constitutes with machine barrel splitter box 41 each intervals is slightly higher than the temperature of two sections of machine barrel 4 front and back, helps plastics and flows in the indoor acceleration plasticizing of plasticizing.

Above-mentioned screw rod splitter box 33 is to be evenly equipped with the circular arc elongated slot that several concave on the periphery of screw rod 3 circle, and this screw rod splitter box 33 has 2, and the material that advances is sheared and good effect is played in mixing.

Above-mentioned machine barrel splitter box 41 is to be evenly equipped with the circular arc elongated slot that several concave on the interior Zhou Yuan of machine barrel 4, and this machine barrel splitter box 41 has 3, to enlarging the contact-making surface of material, strengthens passing warm ability effectively and has good result.

During work, one motor 1 drives screw rod 3 and rotates, under the effect of propulsive force, make plastics constantly add thermal shunt through machine barrel splitter box 41 and screw rod splitter box 33 in regular turn, the extruding plasticizing, mobile performance is just good more backward, needed motive force is just more little, and in several splitter boxs of circular arc, flow through, can change the way of contact of plastics and three grades of plasticizing chambers, can effectively increase contact area, make the plastics that enter in the plasticizing chamber 7 in progradation, just can finish the work of heating plasticizing with the short time, do not have the dead angle, it is more unimpeded to flow, and it is even to add thermal effect, so can improve plasticizing quality.

Because front and back spiro rod section 31,32 is shorter than prior art, still kept screw rod as angle of rake effect, again so improved stressed (mainly being torsion) situation of screw rod, so with under the constant power, can improve revolution greatly, improve the speed that plastics advance, reach the purpose that improves output.

In addition, the utility model is made the net sectional area of plasticizing chamber greatlyyer, and the plastics that promoted by the leading portion screw rod increase in the indoor unit circulation of plasticizing, and promptly plasdcizing rate obtains increasing; Effective heating surface to plastics is bigger than the simple heating surface (area) (HS of screw that adopts, so plastics reach the corresponding minimizing of time of complete heating plasticizing in the plasticizing chamber, thereby has illustrated that the utility model has improved plasticizing capacity than prior art.

Claims

1, a kind of extruser that has a plurality of splitter boxs, comprise that mainly a driven by motor places the screw rod in the machine barrel that the plastics that enter from feed hopper are pushed propelling, shunting plasticizing, the outer peripheral edges of machine barrel are provided with the heating collar that partly is wound on, it is characterized in that: this screw flight section is divided into two sections of front and back, the machine barrel stage casing is the plasticizing chamber that has a plurality of machine barrel splitter boxs, this plasticizing chamber is divided into multistage plasticizing chamber by a plurality of screw rod splitter boxs, is provided with the heating collar that is wound on the outer peripheral edges of this plasticizing chamber in addition.

2, according to the described extruser that has a plurality of splitter boxs of claim 1, it is characterized in that: above-mentioned screw rod splitter box is between three grades of plasticizing chambers, and the plasticizing room temperature that constitutes with machine barrel splitter box each interval is slightly higher than the temperature of two sections of machine barrel front and back.

3, according to claim 1 or the 2 described extruseres that have a plurality of splitter boxs, it is characterized in that: above-mentioned screw rod splitter box is to be evenly equipped with the circular arc elongated slot that several concave on the periphery circle of screw rod.

4, according to the described extruser that has a plurality of splitter boxs of claim 3, it is characterized in that: above-mentioned screw rod splitter box is 2.

5, according to claim 1 or the 2 described extruseres that have a plurality of splitter boxs, it is characterized in that: above-mentioned machine barrel splitter box is to be evenly equipped with the circular arc elongated slot that several concave on the interior Zhou Yuan of machine barrel.

6, according to the described extruser that has a plurality of splitter boxs of claim 5, it is characterized in that: above-mentioned machine barrel splitter box is 3.