CN102107515B - Extruder head - Google Patents
Extruder head Download PDFInfo
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- CN102107515B CN102107515B CN2010105995785A CN201010599578A CN102107515B CN 102107515 B CN102107515 B CN 102107515B CN 2010105995785 A CN2010105995785 A CN 2010105995785A CN 201010599578 A CN201010599578 A CN 201010599578A CN 102107515 B CN102107515 B CN 102107515B
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Abstract
The invention discloses an extruder head, which comprises a split-flow block used for connecting a host machine with the extruder head, wherein the board of the extruder head is provided with a plurality of small holes; a runner which is arranged in the extruder head, has a shape of gradually transiting from a cylindrical structural shape to a spindle shape; and a shaping port mold is embedded into an extruder head port mold for shaping a plastic part. The extruder head has the advantages that: 1) by increasing the contact surface between the extruder head port mold and the shaping port mold, the time for increasing the temperature of the port mold to a preset temperature is reduced to be within 10 minutes from the original 30 minutes, the standby time for assembling and disassembling the port mold is greatly shortened, and the production efficiency is increased; 2) the problem of easily blocking the port mold is solved by using the port mold provided with multiple holes for feeding materials; 3) due to a round feeding hole, the phenomenon of fiber burrs easily occurring on material strips is eliminated; and 4) the extruder head is improved, thereby increasing the stability of shaped material flow, reducing the difference of outer diameters of different material strips, and achieving the excellent effect of controlling the grain diameter appearance.
Description
Technical field
The present invention relates to a kind of cross-head, particularly a kind of forming machine nose that strengthens modified thermoplastic resin for the high temperature heat-resistant Plasitc fibers.
Background technology
Double screw extruder is the modal equipment of modifying plastics industry, and its effect is mainly fused materials by the screw state-transition motion state that is in line, and forms simultaneously necessary pressure and certain shape.The head of existing market extruder adopts mouthful mould to hang over the mode of head outward usually, has the head hopper of screwed hole that a plurality of connecting bolts pass, head body one side on the head body and communicates with discharge opening.When adopting this mode, can satisfy the modification production requirement of general-purpose plastics and part engineering plastics, but special engineering plastics, especially high-temperature resistant thermoplastic resin (fusing point more than 300 ℃ time) are carried out when fiber-reinforced modified, and often following problem can occur: mouthful nib draw ratio is too small, the excessive material strip that makes of convergency is prone to the fiber burr; The material strip nib that results in blockage because die temperature is not high enough; The import and export width ratio of head is excessive and flow channel is unreasonable, makes the material flowing pressure uneven, causes out the inconsistent and difficult tie rod production of material strip linear velocity, even affects the outward appearance of entire block.
Chinese patent ZL200920143299.0 discloses a kind of handpiece structure of extruder, the head hopper of its head body write the be equidistantly spaced mosaic block (die head) of a plurality of same structures of below, described mosaic block has the accurately machined material through hole that goes out, the groove that the top of the discharging through-bore axis of mosaic block has circular arc, but because mosaic block is to be assemblied on the head body in plug-in mode, make like this temperature of mosaic block be not easy to heat up and insulation difficulty when producing high-temperature product.
Summary of the invention
The twin-screw extrusion machine head that the object of the invention is to overcome present use provides a kind of steady production, reliable product quality, the simple to operate and reliable former that reaches cost advantage in the defective that fiber-reinforced modified high-temperature resistant thermoplastic resin occurs.
Cross-head of the present invention comprises that branching block in order to connect main frame and head, has a plurality of apertures on its plate face; Runner is arranged in head, and its shape is transitioned into spindle-type gradually by cylindrical structural; Typing mouthful mould embeds in machine head port mould, in order to plastic parts moulding.
In addition, on the plate face of branching block, have 90～130 apertures, the aperture is 5～8mm, and material flows in flow channel from main frame by aperture; On the branching block plate, diameter is arranged is the rounding of 0.25～1mm at the import and export edge of aperture; The runner of machine head port mould is transitioned into downward 30 °～45 ° of level gradually by horizontal direction; It is 1.2～2.2 that machine head port mould is imported and exported width of flow path ratio, and import and export height ratio h1/h2 is 2.5～3.5; Cross section perpendicular to flow channel arranges 1～2 cooling water pipeline, and internal diameter of the pipeline is 5～10mm; The convex surface of typing mouthful mould contacts with the concave surface of machine head port mould, in conjunction with the arc shape that is shaped as antiparallelogram or opens; The concave surface cross section of machine head port mould presents " eight " shape and opens, and subtended angle a4 is 5 °～15 °; Have rectangular channel on the outlet concave surface of machine head port mould runner, high 1～5mm, wide 1～5mm; The draw ratio in typing mouth mould runner hole is l/d=3～4.5, convergency a=30 °～40 °.
Cross-head of the present invention has following advantage:
1) increase the contact-making surface of machine head port mould and typing mouthful mould, can make time that mouthful mould reaches design temperature by reducing in 10min more than original 30min, a mouthful mould dismounting stand-by time greatly reduces, and enhances productivity;
2) adopt the mouth mould of porous pan feeding, can separate the easy clogging of breach nib;
3) plup inlet of rounding is eliminated material strip and is prone to the fiber burr phenomena;
4) improve flow channel, improve the material stream stability of forming materials, reduce different material strip external diameter difference, can reach the effect of good control particle diameter outward appearance.
Description of drawings
Fig. 1 is the structural representation of cross-head of the present invention.
The specific embodiment
Embodiment one
As shown in Figure 1, branching block 1 of the present invention has 90 apertures 4 in order to connect main frame and head 2 on the plate face of branching block 1, and its aperture is 5mm, and it is the 0.25mm rounding that there is diameter at the import and export edge of its aperture 4; In head 2, runner is arranged, its runner is transitioned into downward 30 ° of level gradually by horizontal direction, and shape is transitioned into spindle-type gradually by cylindrical structural, and material flows in flow channel 5 from main frame by aperture 4; Typing mouthful mould 3 embeds in machine head port mould, in order to plastic parts moulding.
It is 1.2 that 2 mouthfuls of moulds of head are imported and exported width of flow path ratio, and import and export height ratio h1/h2 is 2.5; Cross section perpendicular to flow channel 5 arranges 1 cooling water pipeline 6, and internal diameter of the pipeline is 5mm; The convex surface 7 of typing mouthful mould 3 contacts with the concave surface of machine head port mould, in conjunction with the arc shape that is shaped as antiparallelogram or opens; The concave surface cross section of machine head port mould presents " eight " shape and opens, and subtended angle is 5 °; Have rectangular channel 8 on the outlet concave surface of machine head port mould runner, high 1mm, wide 1mm; The draw ratio in typing mouthful mould 3 runner holes is l/d=3, convergency a=30 °.
Embodiment two
As shown in Figure 1, branching block 1 of the present invention has 130 apertures 4 in order to connect main frame and head 2 on the plate face of branching block 1, and its aperture is 8mm, and it is the 1mm rounding that there is diameter at the import and export edge of its aperture 4; In head 2, runner is arranged, its runner is transitioned into downward 45 ° of level gradually by horizontal direction, and shape is transitioned into spindle-type gradually by cylindrical structural, and material flows in flow channel 5 from main frame by aperture 4; Typing mouthful mould 3 embeds in machine head port mould, in order to plastic parts moulding.
It is 2.2 that 2 mouthfuls of moulds of head are imported and exported width of flow path ratio, and import and export height ratio h1/h2 is 3.5; Cross section perpendicular to flow channel 5 arranges 1 cooling water pipeline 6, and internal diameter of the pipeline is 10mm; The convex surface 7 of typing mouthful mould 3 contacts with the concave surface of machine head port mould, in conjunction with the arc shape that is shaped as antiparallelogram or opens; The concave surface cross section of machine head port mould presents " eight " shape and opens, and subtended angle is 15 °; Have rectangular channel 8 on the outlet concave surface of machine head port mould runner, high 5mm, wide 5mm; The draw ratio in typing mouthful mould 3 runner holes is l/d=4.5, convergency a=40 °.
Embodiment three
As shown in Figure 1, branching block 1 of the present invention has 100 apertures 4 in order to connect main frame and head 2 on the plate face of branching block 1, and its aperture is 6mm, and it is the 0.75mm rounding that there is diameter at the import and export edge of its aperture 4; In head 2, runner is arranged, its runner is transitioned into downward 40 ° of level gradually by horizontal direction, and shape is transitioned into spindle-type gradually by cylindrical structural, and material flows in flow channel 5 from main frame by aperture 4; Typing mouthful mould 3 embeds in machine head port mould, in order to plastic parts moulding.
It is 1.8 that 2 mouthfuls of moulds of head are imported and exported width of flow path ratio, and import and export height ratio h1/h2 is 3; Cross section perpendicular to flow channel 5 arranges 2 cooling water pipelines 6, and internal diameter of the pipeline is 8mm; The convex surface 7 of typing mouthful mould 3 contacts with the concave surface of machine head port mould, in conjunction with the arc shape that is shaped as antiparallelogram or opens; The concave surface cross section of machine head port mould presents " eight " shape and opens, and subtended angle is 10 °; Have rectangular channel 8 on the outlet concave surface of machine head port mould runner, high 3mm, wide 3mm; The draw ratio in typing mouthful mould 3 runner holes is l/d=4, convergency a=35 °.
Claims (9)
1. a cross-head, is characterized in that, comprising:
Branching block (1) in order to connect main frame and head (2), has a plurality of apertures (4) on its plate face;
Head (2) has runner (5) in head (2), its shape is transitioned into spindle-type gradually by cylindrical structural;
Typing mouthful mould (3) embeds in head (2) mouthful mould, in order to plastic parts moulding; It is 1.2～2.2 that head (2) mouthful mould is imported and exported width of flow path ratio, and import and export height ratio h1/h2 is 2.5～3.5.
2. cross-head according to claim 1, it is characterized in that: on the plate face of branching block (1), have 90～130 apertures (4), the aperture is 5～8mm, material flows in flow channel (5) from main frame by aperture (4).
3. cross-head according to claim 1 and 2 is characterized in that: on branching block (1) plate, diameter is arranged is the rounding of 0.25～1mm at the import and export edge of aperture (4).
4. cross-head according to claim 1 is characterized in that: the runner of head (2) mouthful mould is transitioned into downward 30 °～45 ° of level gradually by horizontal direction.
5. cross-head according to claim 1, it is characterized in that: the cross section perpendicular to flow channel (5) arranges 1～2 cooling water pipeline (6), and internal diameter of the pipeline is 5～10mm.
6. cross-head according to claim 1 is characterized in that: the convex surface (7) of typing mouthful mould (3) contacts with the concave surface of machine head port mould, in conjunction with the arc shape that is shaped as antiparallelogram or opens.
7. according to claim 1 or 6 described cross-heads, it is characterized in that: the concave surface cross section of machine head port mould presents " eight " shape and opens, and subtended angle a4 is 5 °～15 °.
8. according to claim 1,5 or 6 described cross-heads, is characterized in that: have rectangular channel (8) on the outlet concave surface of machine head port mould runner, high 1～5mm, wide 1～5mm.
9. cross-head according to claim 1 is characterized in that: the draw ratio in typing mouthful mould (3) runner hole is l/d=3～4.5, convergency a=30 °～40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105995785A CN102107515B (en) | 2010-12-22 | 2010-12-22 | Extruder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105995785A CN102107515B (en) | 2010-12-22 | 2010-12-22 | Extruder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107515A CN102107515A (en) | 2011-06-29 |
| CN102107515B true CN102107515B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105995785A Active CN102107515B (en) | 2010-12-22 | 2010-12-22 | Extruder head |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29912972U1 (en) * | 1999-07-24 | 1999-10-21 | Breuning Wolfgang | Extrusion tool |
| DE10002612A1 (en) * | 1999-03-17 | 2000-09-21 | Az Formen & Maschbau Gmbh | Tire tread strip extrusion die head |
| CN101391482A (en) * | 2008-09-24 | 2009-03-25 | 青岛科技大学 | Booster head produced by extruding method for rubber fender |
| CN201353875Y (en) * | 2008-12-30 | 2009-12-02 | 上海金发科技发展有限公司 | Novel machine head of extruding machine |
| CN201357561Y (en) * | 2009-03-11 | 2009-12-09 | 芜湖纽麦特新材料有限公司 | Head structure of extruder |
| CN201597174U (en) * | 2010-02-09 | 2010-10-06 | 天津思达瑞工贸有限公司 | Plastic extruding machine head structure with high-efficiency filtering function |
| CN202021794U (en) * | 2010-12-22 | 2011-11-02 | 绵阳东方特种工程塑料有限公司 | Extruder head |
-
2010
- 2010-12-22 CN CN2010105995785A patent/CN102107515B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10002612A1 (en) * | 1999-03-17 | 2000-09-21 | Az Formen & Maschbau Gmbh | Tire tread strip extrusion die head |
| DE29912972U1 (en) * | 1999-07-24 | 1999-10-21 | Breuning Wolfgang | Extrusion tool |
| CN101391482A (en) * | 2008-09-24 | 2009-03-25 | 青岛科技大学 | Booster head produced by extruding method for rubber fender |
| CN201353875Y (en) * | 2008-12-30 | 2009-12-02 | 上海金发科技发展有限公司 | Novel machine head of extruding machine |
| CN201357561Y (en) * | 2009-03-11 | 2009-12-09 | 芜湖纽麦特新材料有限公司 | Head structure of extruder |
| CN201597174U (en) * | 2010-02-09 | 2010-10-06 | 天津思达瑞工贸有限公司 | Plastic extruding machine head structure with high-efficiency filtering function |
| CN202021794U (en) * | 2010-12-22 | 2011-11-02 | 绵阳东方特种工程塑料有限公司 | Extruder head |
Also Published As
| Publication number | Publication date |
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| CN102107515A (en) | 2011-06-29 |
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| C06 | Publication | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 621000 Yongan junction, Yongxing Industrial Park, hi tech Zone, Sichuan, Mianyang Applicant after: Mianyang Dongfang Special Engineering Plastic Co., Ltd. Co-applicant after: Shanghai Kingfa Science and Technology Development Co., Ltd. Co-applicant after: Kingfa Technology Co., Ltd. Address before: Ke Feng Lu Science City high tech Industrial Development Zone of Guangzhou City, Guangdong Province, No. 33 510520 Applicant before: Kingfa Technology Co., Ltd. Co-applicant before: Shanghai Kingfa Science and Technology Development Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: KINGFA TECHNOLOGY CO., LTD. TO: MIANYANG DONGFANG SPECIAL ENGINEERING PLASTIC CO., LTD. |
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