CN205614959U - Extrusion molding screw rod - Google Patents
Extrusion molding screw rod Download PDFInfo
- Publication number
- CN205614959U CN205614959U CN201620373602.6U CN201620373602U CN205614959U CN 205614959 U CN205614959 U CN 205614959U CN 201620373602 U CN201620373602 U CN 201620373602U CN 205614959 U CN205614959 U CN 205614959U
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- Prior art keywords
- spiral shell
- shell rib
- rib
- screw
- extrusion screw
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an extrusion molding screw rod, including the body of rod, the body of rod is in proper order by reinforced section (1), melt zone (2), homogenizing section (3), extrusion section (4) are constituteed, be provided with in the reinforced section (1) first spiral shell arris (11), the pitch (S) of first spiral shell arris (11) equals, the spiral shell footpath (D) of first spiral shell arris (11) also equals, be provided with second spiral shell arris (21) on melt zone (2), be provided with third spiral shell arris (22) between the adjacent second spiral shell arris (21), the spiral shell arris quantity of third spiral shell arris (22) is less than the spiral shell arris quantity of second spiral shell arris (21), third spiral shell arris (22) equals with the spiral shell interval that corresponds second spiral shell arris (21), be provided with the hand of spiral is the same and the spiral shell interval equals four screw (31) and the 5th spiral shell arris (32) on homogenizing section (3), form recess (33) that the bottom surface is higher than body of rod external diameter between four screw (31) and the 5th spiral shell arris (32), set up the 6th spiral shell arris (41) on extrusion section (4), the spiral shell interval of the 6th spiral shell arris (41) is greater than the spiral shell interval of four screw (31), its advantage lies in: the difficult jam, the abundant plasticized material of ability, the material homogeneity is good after the plastify.
Description
Technical field
This utility model relates to plastics processing machines technical field, especially a kind of extrusion screw.
Background technology
The China of existing a kind of Patent No. CN201420412136.9 entitled " injection machine PVC injection screw " is practical new
Type patent discloses a kind of injection machine PVC injection screw, including screw body, the screw slot that is located on screw body, described spiral shell
Bar body uses equal diameter structure, and described screw slot includes the charge door being located on screw body, is located at screw body one end
Discharging opening, described screw slot whole piece groove depth from charge door to discharging opening uses gradual change shallow structure.For avoiding in technical background
Described weak point, and the one designed can effectively prevent PVC plastic goods jaundice blackout, makes again the metalworking of screw rod
Conveniently PVC screw rod.But, the easy blocking of this device, through the plasticizing adequacy of plastics of its extrusion molding, uniformity not
Foot, injection effect is undesirable, and therefore the structure of this device also needs to improve further.
Summary of the invention
Technical problem to be solved in the utility model be provide for above-mentioned prior art present situation a kind of extrusion molding amount big,
The extrusion screw being not easily blocked, after having extrusion molding, plastics plastify more abundant, the more preferable advantage of uniformity.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is: this extrusion screw, includes the body of rod, institute
State the body of rod to be made up of feeding section, melt zone, homogenizing zone, extruding zone successively, it is characterised in that: it is provided with first on described feeding section
Spiral shell rib, the pitch of described first spiral shell rib is equal, and the spiral shell footpath of the first spiral shell rib is the most equal, and described melt zone is provided with the second spiral shell rib,
It is provided with the 3rd spiral shell rib between the second adjacent spiral shell rib, and described 3rd spiral shell rib is equal with the spiral shell spacing of corresponding second spiral shell rib, institute
State and on homogenizing zone, be provided with the 4th spiral shell rib and the 5th spiral shell rib that the hand of spiral is identical and spiral shell spacing is equal, described 4th spiral shell rib and
It is formed with the bottom surface groove higher than body of rod external diameter between five spiral shell ribs, described extruding zone is provided with the 6th spiral shell rib, described 6th spiral shell
The spiral shell spacing of rib is more than the spiral shell spacing of the 4th spiral shell rib.
As improvement, the rib of described 3rd spiral shell rib is wide is preferably the spiral shell rib width less than the second spiral shell rib.
Improving further, the wide preferable ratio for the spiral shell rib width with the second spiral shell rib of rib of described 3rd spiral shell rib is 2: 5.
As improvement, the right-hand member of described second spiral shell rib is preferably integrally forming spiral shell for being connected with the left end of the first spiral shell rib
Rib.
As improvement, the right-hand member of described feeding section is preferably provided with screw rod fixed part, the cylindrical of described screw rod fixed part
Fixing groove it is provided with on side face.
Improve further, described fixing groove preferably for be equally spaced on the outer circumference surface of screw rod fixed part 5, institute
Stating fixing groove is 8.
Improve further, be preferably provided with connecting portion between described screw rod fixed part and feeding section, on described connecting portion
It is provided with the annular groove increasing friction.
Improving further, described annular groove is preferably 6～8.
As improvement, the right-hand member end face of described screw rod fixed part is preferably provided with fixing hole, the hole of described fixing hole
The heart is positioned on the axis of the body of rod.
As improvement, the length of described feeding section is preferably 10～60mm, a length of the 30 of described melt zone～80mm,
A length of the 50 of described homogenizing zone～100mm, a length of the 10 of described extruding zone～60mm.
Compared with prior art, the utility model has the advantage of: this extrusion screw extrusion molding amount is big, and the plasticizing of plastics is filled
Dividing property, uniformity also preferable, using effect is good；Further, owing to each section of spiral shell rib of this screw rod all uses uniform pitch to carry, screw rod
Processing is relatively easy to, and plastics are big with the contact area of machine barrel, and heat-transfer effect is good；It is formed with the end between 4th spiral shell rib and the 5th spiral shell rib
Face is higher than the groove of body of rod external diameter, it is achieved material compression, the alternation procedure loosened, and principle is simple, and homo-effect is good, melt zone
The right-hand member of the second spiral shell rib is connected with the left end of the first spiral shell rib of feeding section and is integrally forming spiral shell rib, and the seriality of spiral shell rib is more preferable,
Material is not easily blocked, and successfully enters melt zone from feeding section.
Accompanying drawing explanation
Fig. 1 is the front projection figure of this utility model embodiment；
Fig. 2 is the axonometric chart of Fig. 1；
Fig. 3 is the side projection figure of Fig. 1；
Fig. 4 is the enlarged drawing of I part in Fig. 1；
Fig. 5 is the enlarged drawing of II part in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Figures 1 to 5, the extrusion screw of the present embodiment, include the body of rod, the described body of rod is successively by feeding section 1, molten
The section of melting 2, homogenizing zone 3, extruding zone 4 form, and described feeding section 1 is provided with the first spiral shell rib 11, pitch S of described first spiral shell rib 11
Equal, the spiral shell footpath D of the first spiral shell rib 11 is the most equal, and described melt zone 2 is provided with the second spiral shell rib 21, the second adjacent spiral shell rib 21 it
Between be provided with the 3rd spiral shell rib 22, the spiral shell rib quantity of described 3rd spiral shell rib 22 less than the spiral shell rib quantity of the second spiral shell rib 21, and described the
Three spiral shell ribs 22 are equal with the spiral shell spacing of corresponding second spiral shell rib 21, described homogenizing zone 3 are provided with the hand of spiral is identical and spiral shell spacing
The 4th equal spiral shell rib 31 and the 5th spiral shell rib 32, is formed with bottom surface higher than the body of rod between described 4th spiral shell rib 31 and the 5th spiral shell rib 32
The groove 33 of external diameter, described extruding zone 4 is provided with the 6th spiral shell rib 41, and the spiral shell spacing of described 6th spiral shell rib 41 is more than the 4th spiral shell rib
The spiral shell spacing of 31.The wide P of rib of described 3rd spiral shell rib 22 is less than the spiral shell rib width T of the second spiral shell rib 21.The rib of described 3rd spiral shell rib 22
The ratio of the spiral shell rib width T of wide P and the second spiral shell rib 21 is 2: 5.The right-hand member of described second spiral shell rib 21 and the left end phase of the first spiral shell rib 11
It is formed by connecting and is integrated spiral shell rib.The right-hand member of described feeding section 1 is provided with screw rod fixed part 5, the excircle of described screw rod fixed part 5
Fixing groove 51 it is provided with on face.Described fixing groove 51 is equally spaced on the outer circumference surface of screw rod fixed part 5, described fixing
Groove 51 is 8.It is provided with connecting portion 6 between described screw rod fixed part 5 and feeding section 1, described connecting portion 6 is provided with increase and rubs
The annular groove 61 wiped.Described annular groove 61 is 6～8.It is provided with fixing hole on the right-hand member end face of described screw rod fixed part 5
52, the hole heart of described fixing hole 52 is positioned on the axis of the body of rod.Length L of described feeding section 1 is 10～60mm, described melted
Section 2 length M be 30～80mm, length N of described homogenizing zone 3 is 50～100mm, length K of described extruding zone 4 be 10～
60mm。
Claims (10)
1. an extrusion screw, includes the body of rod, the described body of rod successively by feeding section (1), melt zone (2), homogenizing zone (3), squeeze
The section of going out (4) forms, it is characterised in that: it is provided with the first spiral shell rib (11), the spiral shell of described first spiral shell rib (11) on described feeding section (1)
Equal away from (S), the spiral shell footpath (D) of the first spiral shell rib (11) is the most equal, and described melt zone (2) is provided with the second spiral shell rib (21), adjacent
The second spiral shell rib (21) between be provided with the 3rd spiral shell rib (22), and the spiral shell of described 3rd spiral shell rib (22) and corresponding second spiral shell rib (21)
Spacing is equal, and described homogenizing zone (3) is provided with the hand of spiral is identical and spiral shell spacing is equal the 4th spiral shell rib (31) and the 5th spiral shell
Rib (32), is formed with the bottom surface groove (33) higher than body of rod external diameter, institute between described 4th spiral shell rib (31) and the 5th spiral shell rib (32)
Stating and be provided with the 6th spiral shell rib (41) on extruding zone (4), the spiral shell spacing of described 6th spiral shell rib (41) is more than the spiral shell of the 4th spiral shell rib (31)
Spacing.
Extrusion screw the most according to claim 1, it is characterised in that: the rib width (P) of described 3rd spiral shell rib (22) is less than the
Spiral shell rib width (T) of two spiral shell ribs (21).
Extrusion screw the most according to claim 2, it is characterised in that: the rib width (P) and second of described 3rd spiral shell rib (22)
The ratio of spiral shell rib width (T) of spiral shell rib (21) is 2: 5.
4. according to described extrusion screw arbitrary in claims 1 to 3, it is characterised in that: the right-hand member of described second spiral shell rib (21)
It is connected with the left end of the first spiral shell rib (11) and is integrally forming spiral shell rib.
5. according to described extrusion screw arbitrary in claims 1 to 3, it is characterised in that: the right-hand member of described feeding section (1) is arranged
There is screw rod fixed part (5), the outer circumference surface of described screw rod fixed part (5) is provided with fixing groove (51).
Extrusion screw the most according to claim 5, it is characterised in that: described fixing groove (51) is equally spaced at screw rod
On the outer circumference surface of fixed part (5), described fixing groove (51) is 8.
Extrusion screw the most according to claim 6, it is characterised in that: between described screw rod fixed part (5) and feeding section (1)
It is provided with connecting portion (6), described connecting portion (6) is provided with the annular groove (61) increasing friction.
Extrusion screw the most according to claim 7, it is characterised in that: described annular groove (61) is 6～8.
Extrusion screw the most according to claim 8, it is characterised in that: set on the right-hand member end face of described screw rod fixed part (5)
Being equipped with fixing hole (52), the hole heart of described fixing hole (52) is positioned on the axis of the body of rod.
10. according to described extrusion screw arbitrary in claims 1 to 3, it is characterised in that: the length (L) of described feeding section (1)
Being 10～60mm, the length (M) of described melt zone (2) is 30～80mm, the length (N) of described homogenizing zone (3) be 50～
100mm, the length (K) of described extruding zone (4) is 10～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373602.6U CN205614959U (en) | 2016-04-22 | 2016-04-22 | Extrusion molding screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373602.6U CN205614959U (en) | 2016-04-22 | 2016-04-22 | Extrusion molding screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205614959U true CN205614959U (en) | 2016-10-05 |
Family
ID=57027469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620373602.6U Active CN205614959U (en) | 2016-04-22 | 2016-04-22 | Extrusion molding screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205614959U (en) |
-
2016
- 2016-04-22 CN CN201620373602.6U patent/CN205614959U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 316032 No. 1 Ligang Road, Xikou Industrial Agglomeration Zone, Jintang Town, Dinghai District, Zhoushan City, Zhejiang Province Patentee after: Zhejiang Huaye Plastic Machinery Co.,Ltd. Address before: 316032 Zhejiang Huaye Plastic Machinery Co., Ltd., 191 Xingang Road, Jintang Town, Dinghai District, Zhoushan City, Zhejiang Province Patentee before: ZHEJIANG HUAYE PLASTICS MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |