CN216300118U

CN216300118U - Extruder screw for plastic material extruder

Info

Publication number: CN216300118U
Application number: CN202122853454.1U
Authority: CN
Inventors: 汤善国; 李立辉
Original assignee: ZHOUSHAN DINGHAI JINMAO PLASTIFYING MACHINERY MANUFACTURING FACTORY
Current assignee: ZHOUSHAN DINGHAI JINMAO PLASTIFYING MACHINERY MANUFACTURING FACTORY
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-15
Anticipated expiration: 2031-11-22

Abstract

The utility model provides an extruder screw for a plastic material extruder, which comprises a rod body, wherein the rod body sequentially comprises a feeding section, a melting section, a homogenizing section and an extruding section, the circumferential wall of the feeding section is provided with a plurality of segmentation sections, the circumferential wall of each segmentation section is provided with a first segmentation ring and a second segmentation ring, the first segmentation ring and the second segmentation ring respectively comprise a plurality of triangular segmentation blocks which are annularly arranged at equal intervals, the segmentation blocks on the first segmentation ring and the second segmentation ring are arranged in a mirror image manner, and the segmentation blocks between the segmentation rings are arranged in a mirror image manner, so that an inlet and an outlet are small in size, molten materials can be effectively stirred, the molten materials are mixed more uniformly, bubbles are not generated, the transmission of the molten materials is accelerated, the quality of molding engineering plastics is improved, and the practicability is strong.

Description

Extruder screw for plastic material extruder

Technical Field

The utility model relates to the technical field of extruder manufacturing, in particular to an extruder screw for a plastic material extruder.

Background

Screw rod: a cylinder with a spiral groove or a cone with a conical spiral groove on the outer surface; the screw is mainly used in plastic molding equipment, such as a plastic profile extruder, an injection molding machine and engineering plastic injection molding, and is a core component of the plastic molding equipment, a part for heating, extruding and plasticizing, and a core component of a plastic machine in the whole engineering plastic injection molding.

But because the screw rod that has now all adopts the body of rod and sets up the screw thread on the body of rod to constitute, and the interval between the screw thread is unanimous for in the middle of the process of the ejection of compact, the melting material in the feed cylinder can't obtain abundant even stirring and mix, makes the effect of moulding plastics not good, makes technology plastics product produce a large amount of bubbles in the middle of injection moulding's process easily, thereby has reduced the quality of shaping engineering plastics by a wide margin, and the practicality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an extruder screw rod for a plastic material extruder, which has the advantages of fast material shearing, uniform heating and high plasticizing efficiency, aiming at the current technical situation.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

an extruder screw rod for plastic material extruder, including the body of rod, this body of rod is in proper order by reinforced section, melting section, homogenization section, extrude the section and constitute, reinforced section circumference wall is equipped with a plurality of segmentations, the segmentation circumference wall is equipped with No. one and cuts apart the ring and No. two cut apart the ring, No. one cut apart the ring and No. two cut apart the triangle-shaped piece that the ring all includes a plurality of equidistance annular settings cut apart the piece, No. one cut apart the ring and No. two cut apart the piece on be the mirror image setting. The segmentation circumference wall is equipped with No. three and cuts apart the ring, No. three cut apart the ring and include the rhombus segmentation piece that a plurality of equidistance annular set up, the setting of staggering of segmentation piece and adjacent triangle-shaped segmentation piece.

A non-return ring is arranged between the feeding section and the melting section.

The melting section is provided with a main screw edge and an auxiliary screw edge, the screw pitches of the main screw edge and the auxiliary screw edge are the same, the screw thread turning directions are the same, the main screw edge and the auxiliary screw edge are staggered, and the head end and the tail end of the main screw edge and the tail end of the auxiliary screw edge are connected respectively to form an intercepting area.

And a plurality of reinforcing sheets are arranged at the connecting section of the melting section and the homogenizing section.

The side wall of the screw ridge of the rod body is provided with a fillet, and the outer side wall of the fillet protrudes out of the side wall of the thread of the screw body.

Has the advantages that:

because be equipped with a segmentation ring and No. two at segmentation circumference wall, and cut apart the setting of piece mirror image between the ring, import and export and be little size, can effectually stir the melting material for the melting material mixes more evenly, can not produce the bubble for the transmission of melting material has improved the quality of shaping engineering plastics, and the practicality is strong.

Drawings

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

Fig. 2 is an enlarged view of a portion a.

FIG. 3 is an enlarged view of the portion B.

Fig. 4 is a schematic view of a screw edge enlarging mechanism.

The device comprises a rod body 1, a feeding section 2, a melting section 3, a homogenizing section 4, a first dividing ring 5, a second dividing ring 6, a triangular dividing block 7, a third dividing ring 8, a rhombic dividing block 9, a non-return ring 10, a main spiral edge 11, an auxiliary spiral edge 12, an intercepting area 13, a reinforcing sheet 14, a fillet 15 and an extrusion section 16.

Detailed Description

The utility model is further described with reference to the following examples.

The embodiment of the utility model provides an extruder screw for a plastic material extruder, which comprises a rod body 1, wherein the rod body 1 sequentially comprises a feeding section 2, a melting section 3, a homogenizing section 4 and an extruding section 16, the circumferential wall of the feeding section 2 is provided with a plurality of segmentation sections, the circumferential wall of each segmentation section is provided with a first segmentation ring 5 and a second segmentation ring 6, each segmentation ring 5 and each segmentation ring 6 respectively comprise a plurality of triangular segmentation blocks 7 which are annularly arranged at equal intervals, the segmentation blocks on the first segmentation ring 5 and the second segmentation ring are arranged in a mirror image manner, as the first segmentation ring 5 and the second segmentation ring 6 are arranged on the circumferential wall of each segmentation section and the segmentation blocks between the segmentation rings are arranged in a mirror image manner, the inlet and the outlet are small in size, the molten material can be effectively stirred, the molten material is more uniformly mixed, no bubble is generated, the transmission of the molten material is accelerated, and the quality of the molding engineering plastic is improved, the practicability is strong.

The segmentation circumference wall is equipped with No. three and cuts apart ring 8, No. three cut apart ring 8 and include the rhombus segmentation piece 9 that a plurality of equidistance annular set up, segmentation piece and adjacent triangle-shaped segmentation piece 7 stagger the setting, and rhombus segmentation piece 9 effectively shunts to the material through a segmentation ring 5, joins through No. two segmentation rings 6 after the reposition of redundant personnel for the melting material mixes more evenly.

And a check ring 10 is arranged between the feeding section 2 and the melting section 3 to prevent the material from flowing backwards.

The melting section 3 is provided with a main screw ridge 11 and an auxiliary screw ridge 12, the screw pitches of the main screw ridge 11 and the auxiliary screw ridge 12 are the same, the screw thread turning directions are the same and the screw threads are staggered, the head end and the tail end of the main screw ridge 11 and the tail end of the auxiliary screw ridge 12 are connected to form an intercepting area 13, the auxiliary screw ridge 12 is added on the basis of the main screw ridge 11, so that the plasticizing capacity is enhanced, after the raw materials enter the melting section 3, the raw materials are plasticized under the shearing of the main screw ridge 12 and are changed from the original solid state into the molten state, in the changing process, the solid raw materials which are not plasticized are intercepted by the intercepting area 13 and are repeatedly sheared and plasticized in the melting section 3 all the time until the raw materials are changed into the molten state to flow into the next area, the better plasticizing of the materials is ensured, the defective products are not easy to appear, the maximum utilization rate of the materials is ensured, the cost is saved, and the benefit is maximized.

The connecting section of the melting section 3 and the homogenizing section 4 is provided with a plurality of reinforcing sheets 14, so that the strength is ensured.

The lateral wall of the spiral shell arris of the body of rod 1 be equipped with all and be equipped with fillet 15, the lateral wall of fillet 15 is outstanding outside the lateral wall of the screw thread of screw rod body, fillet 15 can greatly reduced frictional force between screw rod and the feed cylinder, avoids the direct inner wall friction with the feed cylinder of lateral wall of screw rod to greatly increased life between them.

Claims

1. A extruder screw rod for plastic material extruder, including the body of rod (1), this body of rod (1) is in proper order by reinforced section (2), melting section (3), homogenization section (4), extrude section (16) and constitute its characterized in that: add feed segment (2) circumference wall and be equipped with a plurality of segmentations, the segmentation circumference wall is equipped with No. one and cuts apart ring (5) and No. two and cut apart ring (6), a cut apart ring (5) and No. two cut apart ring (6) and all include triangle-shaped segmentation piece (7) that a plurality of equidistance annular set up, segmentation piece on a segmentation ring (5) and No. two segmentations is the mirror image setting.

2. An extruder screw for a plastic material extruder according to claim 1, wherein: the segmentation circumferential wall is equipped with No. three and cuts apart ring (8), No. three cut apart ring (8) and cut apart piece (9) including the rhombus that a plurality of equidistance annular set up, it sets up with adjacent triangle-shaped segmentation piece (7) staggers to cut apart the piece.

3. An extruder screw for a plastic material extruder according to claim 1, wherein: a non-return ring (10) is arranged between the feeding section (2) and the melting section (3).

4. An extruder screw for a plastic material extruder according to claim 1, wherein: the melting section (3) is provided with a main screw rib (11) and an auxiliary screw rib (12), the screw pitches of the main screw rib (11) and the auxiliary screw rib (12) are the same, the screw turning directions are the same, the screw pitches are staggered, and the head end and the tail end of the main screw rib (11) and the tail end of the auxiliary screw rib (12) are connected to form an intercepting area (13).

5. An extruder screw for a plastic material extruder according to claim 1, wherein: the connecting section of the melting section (3) and the homogenizing section (4) is provided with a plurality of reinforcing sheets (14).

6. An extruder screw for a plastic material extruder according to claim 1, wherein: the side wall of the screw ridge of the rod body (1) is provided with a filler rod (15), and the outer side wall of the filler rod (15) protrudes out of the side wall of the thread of the screw rod body.