CN211054361U - Composite die head for fiber reinforced material extruder - Google Patents
Composite die head for fiber reinforced material extruder Download PDFInfo
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- CN211054361U CN211054361U CN201921452867.5U CN201921452867U CN211054361U CN 211054361 U CN211054361 U CN 211054361U CN 201921452867 U CN201921452867 U CN 201921452867U CN 211054361 U CN211054361 U CN 211054361U
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- hole
- die head
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- outer hole
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Abstract
The utility model provides a combined type die head for a fiber reinforced material extruder, which comprises a die head body formed by connecting an inner die head and an outer die head, wherein the centers of the inner die head and the outer die head are respectively provided with an inner hole and an outer hole which are communicated with each other, and the diameter of the outer hole is larger than that of the inner hole; the hole passes through the transition jogged joint with the outer hole, the entry section of hole and the export section of outer hole are circular arc loudspeaker form. The utility model discloses synthesize the die head structure who has improved fiber reinforcement extruder material extruder, make the orifice passage inner wall all be smooth and smooth face, avoid to fibrous wearing and tearing and extrusion, can also make the fibre product smoothly current simultaneously to can solve in the production process because of fine and die head friction damage and melt the disconnected strip phenomenon that body intensity precipitous drop produced, and further reduce the wearing and tearing of die head equipment, can improve production efficiency and increase the feasibility of fiber reinforcement material continuous production.
Description
Technical Field
The utility model relates to a fiber reinforcement extruder, concretely relates to combined type die head for fiber reinforcement material extruder.
Background
The fiber material has the advantages of low density, high modulus and strength, high temperature and chemical corrosion resistance, low thermal expansion coefficient and the like, is mainly used for reinforcing and modifying plastic resin or rubber resin, and has wide application in the fields of aerospace, energy, automobiles, buildings, sports goods and the like. However, after the fiber material and the resin are melted and mixed in an extruder, the fiber material is extruded through a die head, and under the action of gravity and traction force, the horizontal direction of the traction of the melted composite material after demolding is not parallel to the direction of an open slot of the die head, although the outer layer is coated by the resin base material, the phenomenon that the outlet of the die head rubs the resin, the orientation of the fiber in the resin is changed, and even the fiber is broken by grinding exists; in addition, the fiber in the melt is easily broken by the sharp corner at the inlet of the die head, and the die head is easily worn, thereby causing the reduction of the mechanical strength and other properties of the material.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is just to solve above-mentioned not enough, provides a combined type die head of extruder for fiber reinforcement material extrusion moulding, when improving the outward appearance and the performance of fiber reinforcement product to prevent that the die head from to fibre damage or the phenomenon of disconnected strip, also avoided the wearing and tearing to die head itself.
In order to achieve the effect, the utility model provides a combined type die head for fiber reinforced material extruder, including the die head body that is formed by connecting inner die head and outer die head, the center department of inner die head and outer die head is seted up the hole and the outer hole that are linked together respectively, the diameter of outer hole is greater than the diameter of hole; the hole passes through the transition jogged joint with the outer hole, the entry section of hole and the export section of outer hole are circular arc loudspeaker form.
The inner hole and the outer hole are both cylindrical, the middle of the inner hole and the outer hole are smoothly connected through a transition hole, and two ports of the inner hole and the outer hole are both in the shape of an arc horn, namely, the hole channel for extrusion is in an arc smooth structure, so that the condition that the fiber in a fused body is blocked or abraded due to the unevenness or sharp corner positions of the inlet port, the outlet port and the connection part of the existing hole channel is avoided.
In a further scheme, the diameter of the outer hole is 0.4-0.8mm larger than that of the inner hole.
In a further scheme, the transition hole is formed by connecting two sections of lower arc sections and upper arc sections with opposite arcs, the arc center of the lower arc section is positioned on the outer side of the inner hole, and the arc center of the upper arc section is positioned inside the outer hole.
In a further scheme, the central angle values of the lower arc section, the transition hole and the upper arc section are the same and are all 0.2-0.4 mm.
In order to further protect the die head from being abraded by reinforcing hard materials such as minerals, fibers and the like, the inner surfaces of the inner die head and the outer die head are coated with coatings, and the coatings are made of titanium nitride (TiN), chromium nitride (CrN), titanium carbonitride (TiCN), titanium aluminum nitride (AlTiN), chromium aluminum nitride (CrAlN) or titanium silicon nitride (TiSiN).
The composite die head body in the device is formed by combining an inner die head and an outer die head in a two-section mode, the diameters of an inner hole and an outer hole of an axial opening in the center of the inner die head and the center of the outer die head are different, and the diameter of the outer hole is 0.4-0.8mm larger than that of the inner hole. When the fiber enters the outer hole from the inner hole, the molten resin base material fully distributed in the outer hole can perform one-time integral lubrication coating on the periphery of the fiber, so that the appearance is smooth and flat. The inlet section of the inner hole is in the shape of an arc trumpet, so that fibers can smoothly enter the die head, and the fibers and the die head cannot be damaged. The outlet section of the outer hole is in the shape of an arc trumpet, so that the condition that the orientation of the fiber in the resin is changed or even broken due to the fact that the resin base material is rubbed with the die head because the traction direction is inconsistent with the direction of the open slot of the die hole is avoided, and the mechanical property of the material is influenced.
The transition hole between the inner hole and the outer hole can realize the stable transition of the melt strength when the melt passes through the inner hole and the outer hole, and the defect that the melt strength drops sharply to generate broken bars in the prior art is avoided. Meanwhile, the transition hole is formed by connecting two lower arc sections and two upper arc sections with opposite arcs, so that abrasion and extrusion of the hole channel to fibers are avoided.
The utility model discloses synthesize the die head structure who has improved fiber reinforcement extruder material extruder, make the orifice passage inner wall be the smooth surface entirely, avoid to fibrous wearing and tearing and extrusion, can also make the smooth and easy current of fibre product simultaneously. The application of the die head can improve the appearance and partial performance of a fiber reinforced product, simultaneously can solve the problems of damage caused by the friction between glass fibers and the die head and strip breakage caused by the abrupt drop of melt strength in the production process, further reduces the abrasion of die head equipment, and can improve the production efficiency and increase the feasibility of continuous production of fiber reinforced materials.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a structural sectional view of the composite die of the present invention,
fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
As shown in fig. 1-2, a composite die head for a fiber reinforced material extruder comprises a die head body formed by connecting an inner die head 1 and an outer die head 2, wherein the centers of the inner die head 1 and the outer die head 2 are respectively provided with an inner hole 3 and an outer hole 4 which are communicated with each other, and the diameter of the outer hole 4 is larger than that of the inner hole 3; the inner hole 3 is connected with the outer hole 4 through a transition hole 5, and the inlet section of the inner hole 3 and the outlet section of the outer hole 4 are both in the shape of an arc horn.
The inner hole and the outer hole are both cylindrical, the middle of the inner hole and the outer hole are smoothly connected through a transition hole, and two ports of the inner hole and the outer hole are both in the shape of an arc horn, namely, the hole channel for extrusion is in an arc smooth structure, so that the condition that the fiber in a fused body is blocked or abraded due to the unevenness or sharp corner positions of the inlet port, the outlet port and the connection part of the existing hole channel is avoided.
Further, the diameter of the outer hole 4 is 0.4-0.8mm larger than that of the inner hole 3.
Further, the transition hole 5 is formed by connecting two lower arc sections 51 and two upper arc sections 52 with opposite arcs, the arc center of the lower arc section 51 is located at the outer side of the inner hole 3, and the arc center of the upper arc section 52 is located inside the outer hole 4.
In a further scheme, the central angle values of the lower arc section 51, the transition hole 5 and the upper arc section 52 are the same and are all 0.2-0.4 mm. The transition between the lower arc section and the upper arc section is smooth, and the resistance is reduced.
In order to further protect the die head from being abraded by reinforcing hard materials such as minerals, fibers and the like, the inner surfaces of the inner die head 1 and the outer die head 2 are coated with coatings, and the coatings are made of titanium nitride (TiN), chromium nitride (CrN), titanium carbonitride (TiCN), titanium aluminum nitride (AlTiN), chromium aluminum nitride (CrAlN) or titanium silicon nitride (TiSiN).
The composite die head body in the device is formed by combining an inner die head and an outer die head in a two-section mode, the diameters of an inner hole and an outer hole of an axial opening in the center of the inner die head and the center of the outer die head are different, and the diameter of the outer hole is 0.4-0.8mm larger than that of the inner hole. When the fiber enters the outer hole from the inner hole, the molten resin base material fully distributed in the outer hole can perform one-time integral lubrication coating on the periphery of the fiber, so that the appearance is smooth and flat. The inlet section of the inner hole is in the shape of an arc trumpet, so that fibers can smoothly enter the die head, and the fibers and the die head cannot be damaged. The outlet section of the outer hole is in the shape of an arc trumpet, so that the condition that the orientation of the fiber in the resin is changed or even broken due to the fact that the resin base material is rubbed with the die head because the traction direction is inconsistent with the direction of the open slot of the die hole is avoided, and the mechanical property of the material is influenced.
The transition hole between the inner hole and the outer hole can realize the stable transition of the melt strength when the melt passes through the inner hole and the outer hole, and the defect that the melt strength drops sharply to generate broken bars in the prior art is avoided. Meanwhile, the transition hole is formed by connecting two lower arc sections and two upper arc sections with opposite arcs, so that the abrasion and extrusion of a hole channel to fibers are avoided, and the phenomena of partial burrs, unsmooth smoothness and smoothness in the appearance of the fiber reinforced material are avoided.
When processing, fasten inner die head 1 and outer die head 2 through the bolt and constitute the die head body, install the exit of fibre feeding device with the die head body, the fibre is pulled out from the nib on the die head body after feeding device and resin base material intensive mixing infiltration, in the circular arc tubaeform entrance segment of hole 3 gets into hole 3 promptly, the fibre product has just gone on, go into the outer hole 4 that the aperture is slightly big through smooth transition hole 5 afterwards and carry out fibre surface cladding, come out from the circular arc tubaeform exit segment of outer hole 4 at last and get into water cooling system again, then air-dry, the compression roller, cut the shaping after the grain.
The composite die head is formed by combining an inner die head 1 and an outer die head 2 in a two-section mode, the opening diameters of inner holes and outer holes on the inner die head 1 and the outer die head 2 are different, the diameter of the outer hole 4 is larger than that of an inner hole 3, and if the diameter of the inner hole 3 is 3mm, the diameter of the outer hole is 3.6 mm. When the fiber enters the outer hole 4 from the inner hole 3, the molten resin base material filled in the outer hole can perform integral surface coating on the periphery of the fiber once, so that the appearance is smooth and flat. The inlet section of the inner hole 3 is in a circular arc horn shape, so that fibers can smoothly enter the inner hole 3; the outlet section of the outer hole 4 is also in the shape of an arc horn, so that the situation that the orientation of fibers in resin is changed or even broken due to the fact that the resin base material is rubbed with the die head because the traction direction is inconsistent with the direction of the open groove of the die hole is avoided, the appearance and partial performance of a fiber product can be improved due to the arc horn-shaped design of the outlet, and the die head is protected from being worn easily.
The above embodiments are not limited to the protection scope of the present invention, and all modifications or changes based on the basic idea of the present invention belong to the protection scope of the present invention.
Claims (5)
1. A combined type die head for a fiber reinforced material extruder comprises a die head body formed by connecting an inner die head (1) and an outer die head (2), wherein the centers of the inner die head (1) and the outer die head (2) are respectively provided with an inner hole (3) and an outer hole (4) which are communicated with each other, and the diameter of the outer hole (4) is larger than that of the inner hole (3); the method is characterized in that: the inner hole (3) is connected with the outer hole (4) through the transition hole (5), and the inlet section of the inner hole (3) and the outlet section of the outer hole (4) are both in the shape of an arc horn.
2. The composite die of claim 1, wherein: the diameter of the outer hole (4) is 0.4-0.8mm larger than that of the inner hole (3).
3. The composite die of claim 1, wherein: the transition hole (5) is formed by connecting two lower arc sections (51) and upper arc sections (52) with opposite arcs, the arc center of the lower arc section (51) is positioned on the outer side of the inner hole (3), and the arc center of the upper arc section (52) is positioned inside the outer hole (4).
4. The composite die of claim 3, wherein: the central angle values of the lower arc section (51) and the upper arc section (52) are the same and are both 0.2-0.4 mm.
5. The composite die of claim 1, wherein: the inner surfaces of the inner die head (1), the transition hole (5) and the outer die head (2) are coated with coatings, and the coatings are made of titanium nitride, chromium nitride, titanium carbonitride, titanium aluminum nitride, chromium aluminum nitride or titanium silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452867.5U CN211054361U (en) | 2019-09-03 | 2019-09-03 | Composite die head for fiber reinforced material extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452867.5U CN211054361U (en) | 2019-09-03 | 2019-09-03 | Composite die head for fiber reinforced material extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211054361U true CN211054361U (en) | 2020-07-21 |
Family
ID=71591220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921452867.5U Expired - Fee Related CN211054361U (en) | 2019-09-03 | 2019-09-03 | Composite die head for fiber reinforced material extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211054361U (en) |
-
2019
- 2019-09-03 CN CN201921452867.5U patent/CN211054361U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |