CN202895503U - Melt impregnation head for forming continuous long fiber-reinforced thermoplastic resin - Google Patents
Melt impregnation head for forming continuous long fiber-reinforced thermoplastic resin Download PDFInfo
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- CN202895503U CN202895503U CN 201220496286 CN201220496286U CN202895503U CN 202895503 U CN202895503 U CN 202895503U CN 201220496286 CN201220496286 CN 201220496286 CN 201220496286 U CN201220496286 U CN 201220496286U CN 202895503 U CN202895503 U CN 202895503U
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Abstract
The utility model discloses a melt impregnation head for forming a continuous long fiber-reinforced thermoplastic resin. A melt distribution runner and an impregnation runner are formed in the head. Each discharge port of the melt distribution runner is connected with the impregnation runner through a discharge roller. One end of the impregnation runner is an inlet channel, and the other end of the impregnation runner is an outlet channel. At least one group of tension rollers are arranged between the inlet channel and the discharge rollers. At least one group of tension rollers are arranged between the outlet channel and the discharge rollers. According to a method, a continuous long fiber bundle enters the impregnation runner from the inlet channel, and is drawn out from the outlet channel after passing through the discharge rollers, and in such a process, thermoplastic melt enters the impregnation runner from the melt distribution runner after permeating fiberglass through the discharge rollers to further impregnate the continuous long fiber bundle. The melt impregnation head is provided with the melt distribution runner which is connected with the impregnation runner through the discharge rollers, so that the pressure and the flow of the melt contacting with each long fiber bundle are kept consistent to ensure balance the impregnation effects among each continuous long fiber.
Description
Technical field
The utility model relates to thermoplastic resin molded technical field, particularly melt impregnation head and the method used of a kind of continuous fiber reinforced thermoplastic resin moulding.
Background technology
At present, be used for thermoplastic resin molded equipment varied, but in the melt impregnation equipment for continuous fiber reinforced thermoplastic resin, usually since the structure of head not rationally and so that the continuous fiber bundle can not get uniform melt impregnation effect, thereby affect product quality.
Publication number is to disclose a kind of long fibre infiltration apparatus in the patent application of JP2002307432A, this device is that the downside in the fibre bundle lead is designed with the resin injection mouth, each independently the resin injection mouth fit tightly with corresponding fibre bundle, resin from bottom to top penetrate glass; The resin of melting is injected in the applying die cavity of resin and fibre bundle by a runner.In this device, the melt pressure of melt in the die cavity of the contact-making surface of resin injection mouth and fiber is difficult to distribute homogeneous, and fibre bundle is difficult to obtain the dipping effect of homogeneous; Melt from bottom to top penetrate fibre bundle before, fibre bundle does not carry out shredding and stretching, extension yet, melt can not effectively penetrate the gap of fibre bundle.
Publication number is to disclose a kind of cross head in the patent application of WO0051807A, this head comprises mobile die cavity, the a plurality of mold cavities that are connected with mobile die cavity, wherein the Fluid Flow in A of mold cavity can be adjusted, and fibre bundle is along the axially-movable of each mold cavity.Each mold cavity can be regulated melt flow by independent circular radial column piston mould.Melt enters from an end unification of the die cavity that flows, and the other end is airtight, can open when cleaning such as need.But this head divides timing at melt, and melt pressure has certain loss, near the melt pressure of melt upstream end must be than away from the melt upstream end large; Although this head is provided with the cylindrical piston mould and is used for regulating melt pressure, the melt flow of each mold runner is unbalanced, may cause the inconsistent situation of product fiber content.And this head practical operation is loaded down with trivial details, bothers in application process.
Publication number is that melt enters the injection roller vertically in the device of Patent Application Publication of WO2007059806, the arc surface upper shed aperture of injection roller, and melt is through small holes and penetrate and the fibre bundle of injecting the roller arc surface and fitting tightly.But also exist melt pressure to distribute unbalanced problem in this head, can cause fiber impregnation effect heterogeneity.
But being the patent application of CN101856872A, publication number proposed the continuous fiber band of preheating is imported the two extrusion die groups of staggered folding, but should the two extrusion die groups of staggered folding comprise the first extrusion die, the second extrusion die and orbital motion device, the osmotic pressure that the continuous fiber band contacts with the first extrusion die and generation and fabric strip plane are perpendicular, make the thermoplastic resin of melting carry out pre-preg to a side of continuous fiber band, the opposite side of continuous fiber band contacts and produces same osmotic pressure with the second extrusion die, and the thermoplastic resin that makes melting floods the opposite side of continuous fiber band again.But experiment showed, when this equipment floods simultaneously for many continuous fibers, also be difficult to guarantee the dipping uniformity of every fiber.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the melt impregnation head that provides a kind of continuous fiber reinforced thermoplastic resin moulding to use, the use of this head can be produced and stablize so that continuous fiber bundle dipping effect is balanced, and the yield rate of product is also higher.
The technical solution of the utility model is: the melt impregnation head that a kind of continuous fiber reinforced thermoplastic resin moulding is used, melt impregnation head inside is provided with melt and distributes runner and dipping runner, and melt distributes each discharging opening of runner to be connected with the dipping runner by discharge roller; The two ends of dipping runner arrange respectively access road and the exit passageway for the turnover of continuous fiber bundle, and at least one group of jockey pulley is set between access road and the discharge roller, and at least one group of jockey pulley is set between exit passageway and the discharge roller.Wherein, discharge roller is used for connecting melt and distributes runner and dipping runner, plays transitional function.
It is the version of multistage branch that described melt distributes runner, comprises multistage branch's runner, and branch's runners at different levels are cylindrical runner.The melt of this structure distributes runner can guarantee that the thermoplastic resin melt enters the dipping runner uniformly and stably, makes the continuous fiber bundle behind the Melt penetration obtain balanced dipping effect.
The diameter of described branches at different levels runner is 5 ~ 100mm, is positioned at the branch's runner equal diameters with one-level.
Described melt distributes runner to be located at the below of dipping runner one side.
The outer surface of described discharge roller is arc surface, and the middle part of discharge roller is sector channel, and the sector channel top is provided with a plurality of discharge openings, and each discharge opening is respectively perpendicular to the continuous fiber bundle; The arc surface diameter of discharge roller is 5 ~ 200mm, and the discharge opening diameter is 1 ~ 10mm.The discharge roller of this structure, its outer surface can fit tightly with the continuous fiber bundle, and a plurality of discharge opening and continuous fiber Shu Chuizhi arrange, and can guarantee that melt is to the even dipping of continuous fiber bundle.
The cross section of described access road is circle, ellipse or rectangle; When cross section when being circular or oval, the radius of cross section is 2 ~ 20mm; When cross section is rectangle, the width of cross section and highly be 2 ~ 20mm.
The cross section of described exit passageway is rectangle or circle; When cross section is rectangle, the width of cross section and highly be 2 ~ 5mm; When cross section was circle, the radius of cross section was 2 ~ 5mm.The shape of cross section of exit passageway also can carry out predetermined set according to the shape of required fiber reinforced thermoplastic resin.
The cross section of described dipping runner is rectangle or trapezoidal, floods the width of flow channel cross-section and highly is respectively 100 ~ 2000mm.
The exradius of described jockey pulley is 5 ~ 50mm.
In order to make the conveying of continuous fiber bundle in the dipping runner more smooth and easy, also can in the dipping runner, guide roller be set according to actual needs.
The utility model is realized the melt impregnation method that a kind of continuous fiber reinforced thermoplastic resin moulding is used according to above-mentioned melt impregnation head, may further comprise the steps:
(1) the continuous fiber bundle enters in the dipping runner by access road and alternately walks around at least one group of jockey pulley, then walk around the outer surface of discharge roller, the lower surface of continuous fiber bundle and the intimate of discharge roller are fitted, and pull out from exit passageway after last continuous fiber bundle is walked around at least one group of jockey pulley;
(2) after thermoplastic melt enters melt distribution runner, enter discharge roller by branch's uniform flow passage at different levels, each discharge opening by discharge roller enters the dipping runner again;
When (3) the continuous fiber bundle passed through the outer surface of discharge roller, thermoplastic melt from bottom to top penetrated the continuous fiber bundle;
(4) pull out from exit passageway through the continuous fiber bundle behind the melt impregnation, become the fiber reinforced thermoplastic resin of reservation shape.
The utility model has following beneficial effect with respect to prior art:
This melt impregnation head distributes runner by melt is set in head, and melt distributes runner to be connected by discharge roller with flooding between the runner, the melt pressure, the flow that contact with every bundle long-fiber bundle all are consistent, guaranteed the equilibrium of dipping effect between the every continuous fiber, its dipping uniformity of Effective Raise.
In this melt impregnation head, because the continuous fiber bundle is with before thermoplastic melt from melt distribution runner contacts, pass through first jockey pulley, fibre bundle is launched, so melt can more effectively penetrate the continuous fiber bundle, thereby improve the dipping effect of continuous fiber bundle, reduce fiber tension, also reduce fiber breakage, guarantee higher hauling speed, and realize steady production.
Description of drawings
Fig. 1 is the schematic cross-section of this melt impregnation head.
Fig. 2 be among Fig. 1 on the A direction melt distribute the structural representation of runner.
Fig. 3 is the structural representation of discharge roller in this melt impregnation head.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
The melt impregnation head that a kind of continuous fiber reinforced thermoplastic resin moulding of the present embodiment is used, melt impregnation head inside are provided with melt and distribute runner 1 and dipping runner 2, and melt distributes each discharging opening of runner 1 to be connected with dipping runner 2 by discharge roller 3; The two ends of dipping runner arrange respectively access road 4 and the exit passageway 6 for 9 turnover of continuous fiber bundle, and at least one group of jockey pulley 5 is set between access road and the discharge roller, and at least one group of jockey pulley is set between exit passageway and the discharge roller.Wherein, discharge roller is used for connecting melt and distributes runner and dipping runner, plays transitional function.
As shown in Figure 2, it is the version of multistage branch that melt distributes runner 1, comprises multistage branch's runner, and branch's runners at different levels are cylindrical runner.The melt of this structure distributes runner can guarantee that the thermoplastic resin melt enters the dipping runner uniformly and stably, makes the continuous fiber bundle behind the Melt penetration obtain balanced dipping effect.
Wherein, the diameter of branches at different levels runner is 5 ~ 100mm, is positioned at the branch's runner equal diameters with one-level.
In order to make things convenient for flowing of thermoplastic melt, melt distributes runner to be located at the below of dipping runner one side.
As shown in Figure 3, the outer surface of discharge roller 3 is arc surface, and the middle part of discharge roller is sector channel 7, and the sector channel top is provided with a plurality of discharge openings 8, and each discharge opening is respectively perpendicular to the continuous fiber bundle, and namely the continuous fiber bundle is from each discharge opening top process; The arc surface diameter of discharge roller is 5 ~ 200mm, and the discharge opening diameter is 1 ~ 10mm.The discharge roller of this structure, its outer surface can fit tightly with the continuous fiber bundle, and a plurality of discharge opening and continuous fiber Shu Chuizhi arrange, and can guarantee that melt is to the even dipping of continuous fiber bundle.
The cross section of access road can be circle, ellipse or rectangle; When cross section when being circular or oval, the radius of cross section is 2 ~ 20mm; When cross section is rectangle, the width of cross section and highly be 2 ~ 20mm.
The cross section of exit passageway can be rectangle or circle; When cross section is rectangle, the width of cross section and highly be 2 ~ 5mm; When cross section was circle, the radius of cross section was 2 ~ 5mm.The shape of cross section of exit passageway also can carry out predetermined set according to the shape of required fiber reinforced thermoplastic resin.
The cross section of dipping runner can be rectangle or trapezoidal, floods the width of flow channel cross-section and highly is respectively 100 ~ 2000mm.
The exradius of jockey pulley is 5 ~ 50mm.
In order to make the conveying of continuous fiber bundle in the dipping runner more smooth and easy, also can in the dipping runner, guide roller be set according to actual needs.
The present embodiment is realized the melt impregnation method that a kind of continuous fiber reinforced thermoplastic resin moulding is used according to above-mentioned melt impregnation head, may further comprise the steps:
(1) the continuous fiber bundle enters in the dipping runner by access road and alternately walks around at least one group of jockey pulley, then walk around the outer surface of discharge roller, the lower surface of continuous fiber bundle and the intimate of discharge roller are fitted, and pull out from exit passageway after last continuous fiber bundle is walked around at least one group of jockey pulley;
(2) after thermoplastic melt enters melt distribution runner, enter discharge roller by branch's uniform flow passage at different levels, each discharge opening by discharge roller enters the dipping runner again;
When (3) the continuous fiber bundle passed through the outer surface of discharge roller, thermoplastic melt from bottom to top penetrated the continuous fiber bundle;
(4) pull out from exit passageway through the continuous fiber bundle behind the melt impregnation, become the fiber reinforced thermoplastic resin of reservation shape.
As mentioned above, just can realize preferably the utility model, above-described embodiment is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model; Be that all equalizations of doing according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (9)
1. the melt impregnation head used of continuous fiber reinforced thermoplastic resin moulding is characterized in that, melt impregnation head inside is provided with melt and distributes runner and dipping runner, each discharging opening that melt distributes runner by discharge roller with flood runner and be connected; The two ends of dipping runner arrange respectively access road and the exit passageway for the turnover of continuous fiber bundle, and at least one group of jockey pulley is set between access road and the discharge roller, and at least one group of jockey pulley is set between exit passageway and the discharge roller.
2. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1, it is characterized in that, it is the version of multistage branch that described melt distributes runner, comprises multistage branch's runner, and branch's runners at different levels are cylindrical runner.
3. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 2 is characterized in that, the diameter of described branches at different levels runner is 5 ~ 100mm, is positioned at the branch's runner equal diameters with one-level.
4. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1 is characterized in that, described melt distributes runner to be located at the below of dipping runner one side.
5. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1, it is characterized in that, the outer surface of described discharge roller is arc surface, the middle part of discharge roller is sector channel, the sector channel top is provided with a plurality of discharge openings, and each discharge opening is respectively perpendicular to the continuous fiber bundle; The arc surface diameter of discharge roller is 5 ~ 200mm, and the discharge opening diameter is 1 ~ 10mm.
6. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1 is characterized in that, the cross section of described access road is circular, ellipse or rectangle; When cross section when being circular or oval, the radius of cross section is 2 ~ 20mm; When cross section is rectangle, the width of cross section and highly be 2 ~ 20mm.
7. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1 is characterized in that, the cross section of described exit passageway is rectangle or circle; When cross section is rectangle, the width of cross section and highly be 2 ~ 5mm; When cross section was circle, the radius of cross section was 2 ~ 5mm.
8. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1 is characterized in that, the cross section of described dipping runner is rectangle or trapezoidal, the width of dipping flow channel cross-section and highly be respectively 100 ~ 2000mm.
9. the melt impregnation head used of described continuous fiber reinforced thermoplastic resin moulding according to claim 1 is characterized in that, the exradius of described jockey pulley is 5 ~ 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496286 CN202895503U (en) | 2012-09-26 | 2012-09-26 | Melt impregnation head for forming continuous long fiber-reinforced thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496286 CN202895503U (en) | 2012-09-26 | 2012-09-26 | Melt impregnation head for forming continuous long fiber-reinforced thermoplastic resin |
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| Publication Number | Publication Date |
|---|---|
| CN202895503U true CN202895503U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496286 Expired - Lifetime CN202895503U (en) | 2012-09-26 | 2012-09-26 | Melt impregnation head for forming continuous long fiber-reinforced thermoplastic resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848489A (en) * | 2012-09-26 | 2013-01-02 | 金发科技股份有限公司 | Continuous melting dipping machine head and method for forming long fiber reinforced thermoplastic resin |
| CN103770241A (en) * | 2014-01-25 | 2014-05-07 | 广州金发碳纤维新材料发展有限公司 | Double-faced melt impregnation method and device for continuous long fiber reinforced thermoplastic resin |
-
2012
- 2012-09-26 CN CN 201220496286 patent/CN202895503U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848489A (en) * | 2012-09-26 | 2013-01-02 | 金发科技股份有限公司 | Continuous melting dipping machine head and method for forming long fiber reinforced thermoplastic resin |
| CN103770241A (en) * | 2014-01-25 | 2014-05-07 | 广州金发碳纤维新材料发展有限公司 | Double-faced melt impregnation method and device for continuous long fiber reinforced thermoplastic resin |
| CN103770241B (en) * | 2014-01-25 | 2016-03-16 | 广州金发碳纤维新材料发展有限公司 | The two-sided melt impregnation method and apparatus of continuous fiber reinforced thermoplastic resin |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |