CN114083733A - Mold and method for producing glass fiber infiltrated plastic composite strip - Google Patents
Mold and method for producing glass fiber infiltrated plastic composite strip Download PDFInfo
- Publication number
- CN114083733A CN114083733A CN202111434283.7A CN202111434283A CN114083733A CN 114083733 A CN114083733 A CN 114083733A CN 202111434283 A CN202111434283 A CN 202111434283A CN 114083733 A CN114083733 A CN 114083733A
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- China
- Prior art keywords
- glass fiber
- die
- belt
- plate blank
- plastic plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The invention discloses a mold and a method for producing a glass fiber infiltrated plastic composite strip, which comprises the following steps: the glass fiber infiltrating belt comprises an extrusion die and a heating device, wherein the extrusion die is provided with an upper die cavity and a lower die cavity which are used for molten plastics to pass through respectively so as to form an upper plastic plate blank and a lower plastic plate blank, and a heating channel which is arranged between the upper die cavity and the lower die cavity and used for allowing a glass fiber infiltrating belt to pass through, wherein the surface of the glass fiber infiltrating belt is heated to a molten state by the heating channel; the rolling die is used for pressing the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltrating belt extruded from the extrusion die together; and the shaping mold is used for shaping and cooling the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltration belt which are pressed together to form the glass fiber infiltration plastic composite belt. The deformation and even breakage caused by heating, extruding, impacting and stretching of the glass fiber infiltrated belt after the glass fiber infiltrated belt is converged with the molten plastic in the extrusion die in the production process of the glass fiber infiltrated plastic composite belt material are avoided.
Description
Technical Field
The invention relates to the field of composite strip production, in particular to a mold for producing a glass fiber infiltrated plastic composite strip.
Background
The glass fiber soaking belt is prepared by soaking unidirectional continuous glass fiber in a resin matrix under strictly controlled conditions to prepare a composition of the resin matrix and the glass fiber, so that the composition has the mechanical properties of the continuous glass fiber and the thermoplastic properties of the PE resin matrix. The glass fiber infiltration belt has the characteristics of high strength, low density, good corrosion resistance and good impact resistance, and can be applied to the fields of aerospace, new energy automobiles, pressure pipelines and the like. At present, the glass fiber infiltration belt is applied to a base body of a novel reinforced electric hot melt belt product, namely, the glass fiber infiltration plastic composite belt is produced to replace the original steel mesh to be used as a reinforcement body. However, after the glass fiber-impregnated tape is heated and melted, the strength of the glass fiber-impregnated tape is greatly reduced, and the glass fiber-impregnated tape cannot resist the acting forces such as extrusion, impact and pulling on the glass fiber-impregnated tape caused by molten plastic in the co-extrusion process of the extrusion die, so that the glass fiber layer of the produced glass fiber-impregnated plastic composite tape is bent, delaminated and reduced in strength, and the production speed is low, and even the glass fiber-impregnated tape is broken in the production process.
Disclosure of Invention
The invention provides a mold and a method for producing a glass fiber-infiltrated plastic composite strip, aiming at solving the problem that the glass fiber-infiltrated plastic composite strip is heated, extruded, impacted and stretched after being converged with molten plastic in an extrusion mold to cause deformation and even breakage in the production process of the glass fiber-infiltrated plastic composite strip.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
on one hand, the invention discloses a glass fiber infiltration plastic composite strip production mold, which comprises the following components: the glass fiber infiltrating belt comprises an extrusion die and a heating device, wherein the extrusion die is provided with an upper die cavity and a lower die cavity which are used for molten plastics to pass through respectively so as to form an upper plastic plate blank and a lower plastic plate blank, and a heating channel which is arranged between the upper die cavity and the lower die cavity and used for allowing a glass fiber infiltrating belt to pass through, wherein the surface of the glass fiber infiltrating belt is heated to a molten state by the heating channel;
the rolling die is used for pressing the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltrating belt extruded from the extrusion die together;
and the shaping mold is used for shaping and cooling the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltration belt which are pressed together to form the glass fiber infiltration plastic composite belt.
Optionally, the extrusion die includes an upper die plate, a middle die plate and a lower die plate, which are sequentially arranged from top to bottom, the upper die cavity and the lower die cavity are respectively formed in the upper die plate and the lower die plate, and the heating channel is formed in the middle die plate.
Optionally, the rolling die comprises an upper rolling roller and a lower rolling roller, and polytetrafluoroethylene coatings are coated on the surfaces of the upper rolling roller and the lower rolling roller.
Optionally, the rolling die is connected with a heating temperature control device.
Optionally, the shaping mold comprises an upper shaping mold and a lower shaping mold, and both the upper shaping mold and the lower shaping mold are provided with a vacuum passage and a cooling water passage.
On the other hand, the invention discloses a production method of a glass fiber infiltrated plastic composite strip, which comprises the following steps:
the method comprises the steps of uniformly distributing plastic melting materials sent by an extruder in an extrusion die to form an upper plastic plate blank and a lower plastic plate blank, enabling a glass fiber infiltration belt to penetrate through a preheating channel of the extrusion die to achieve the effect of surface melting, pressing the upper plastic plate blank and the lower plastic plate blank with the preheated glass fiber infiltration belt by a rolling die, then enabling the upper plastic plate blank and the lower plastic plate blank to enter a shaping die, cooling and shaping the pressed composite belt by the shaping die to form the glass fiber infiltration plastic composite belt
Compared with the prior art, the invention has the technical progress that:
by changing the structure of the extrusion die and adding the rolling die, in the production process of the glass fiber infiltrated plastic composite strip, the plastic plate blank and the glass fiber infiltrated belt are respectively molded and preheated in the extrusion die, extruded and bonded in the adjacent rolling die after being separated from the extrusion die, and then vacuum adsorption and cooling sizing are carried out through the sizing die, so that the glass fiber infiltrated plastic composite strip with a smooth surface is formed. Therefore, in the production process of the glass fiber-infiltrated plastic composite strip, the glass fiber-infiltrated belt cannot be deformed or even broken due to heating, extrusion, impact and stretching in an extrusion die, the production process is smooth and continuous, and the flatness of a product is improved. The added rolling die can extrude and bond the plastic plate blank and the heated glass fiber infiltration belt, and redistribute the thickness of the composite belt blank, thereby reducing the requirement on the material distribution uniformity of the extrusion die; as the deformation of the glass fiber infiltrated belt is avoided in the production process, the tensile strength and the shear strength of the produced glass fiber infiltrated plastic composite belt material are respectively improved by 35 percent and 50 percent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure:
1-extrusion die, 11-upper plastic plate blank, 12-lower plastic plate blank, 13-glass fiber infiltration belt, 14-upper template, 15-middle template, 16-lower template, 2-rolling die, 21-upper press roller, 22-lower press roller, 3-shaping die, 31-upper shaping die and 32-lower shaping die.
Detailed Description
The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, the invention discloses a mold for producing a glass fiber-infiltrated plastic composite strip, which comprises an extrusion mold 1, wherein the extrusion mold 1 is provided with an upper mold cavity and a lower mold cavity for molten plastics to pass through respectively to form an upper plastic plate blank 11 and a lower plastic plate blank 12, and a heating channel arranged between the upper mold cavity and the lower mold cavity and used for a glass fiber-infiltrated belt 13 to pass through, wherein the heating channel heats the surface of the glass fiber-infiltrated belt 13 to a molten state;
the rolling die 2 is used for pressing the upper plastic plate blank 11, the lower plastic plate blank 12 and the glass fiber wetting belt 13 extruded from the extrusion die 1 together;
and the shaping mold 3 is used for pressing, shaping and cooling the upper plastic plate blank 11, the lower plastic plate blank 12 and the glass fiber infiltrated belt 13 which are pressed together to form the glass fiber infiltrated plastic composite belt.
Specifically, the extrusion die 1 comprises an upper die plate 14, a middle die plate 15 and a lower die plate 16 which are sequentially arranged from top to bottom, an upper die cavity and a lower die cavity are respectively formed in the upper die plate 14 and the lower die plate 16, a heating channel is formed in the middle die plate 16, the extrusion die 1 respectively extrudes the upper plastic plate blank 11, the lower plastic plate blank 12 and the glass fiber infiltration belt 13 from the upper die cavity and the lower die cavity and pulls the glass fiber infiltration belt out from the middle die plate channel, in the extrusion die 1, the three layers of the upper plastic plate blank 11, the lower plastic plate blank 12 and the glass fiber infiltration belt 13 cannot be converged, the phenomenon that molten plastic acts on the glass fiber infiltration belt with heat and pressure is avoided, and the glass fiber infiltration belt is heated, extruded and deformed or even broken in the extrusion die 1.
The rolling die 2 comprises an upper pressing roller 21 and a lower pressing roller 22, after the upper plastic slab 11, the lower plastic slab 12 and the glass fiber infiltration belt 13 leave the extrusion die 1 respectively, the upper pressing roller 21 and the lower pressing roller 22 are pressed and bonded, in order to avoid adhesion between the slab 11 and the lower plastic slab 12 and the upper pressing roller 21 and the lower pressing roller 22, the surfaces of the upper pressing roller 21 and the lower pressing roller 22 are provided with polytetrafluoroethylene coatings, and meanwhile, in order to prevent the temperature of the upper pressing roller 21 and the lower pressing roller 22 from influencing the molding of the upper plastic slab 11 and the lower plastic slab 12, the upper pressing roller 21 and the lower pressing roller 22 are further provided with heating and temperature control devices.
The shaping mold 3 comprises an upper shaping mold 31 and a lower shaping mold 32, the upper shaping mold 31 and the lower shaping mold 32 are both provided with a vacuum passage and a cooling water passage, the roller pressing mold 2 presses the upper plastic plate blank 11 and the lower plastic plate blank 12 with the preheated glass fiber infiltrated tape 13 and then enters the shaping mold 3, and the shaping mold 3 carries out vacuum adsorption and cooling shaping on the pressed composite tape to form the glass fiber infiltrated plastic composite tape.
The invention also discloses a production method of the glass fiber infiltrated plastic composite strip, which comprises the following steps:
the method comprises the following steps of uniformly distributing plastic melting materials sent by an extruder in an extrusion die to form an upper plastic plate blank and a lower plastic plate blank, enabling a glass fiber infiltration belt to penetrate through a preheating channel of the extrusion die to achieve the effect of surface melting, pressing the upper plastic plate blank and the lower plastic plate blank with the preheated glass fiber infiltration belt by a rolling die, then enabling the upper plastic plate blank and the lower plastic plate blank to enter a shaping die, and carrying out vacuum adsorption and cooling shaping on the pressed composite belt by the shaping die to form the glass fiber infiltration plastic composite belt.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a glass fiber soaks compound strip production mould of plastics which characterized in that includes:
the glass fiber infiltrating belt comprises an extrusion die and a heating device, wherein the extrusion die is provided with an upper die cavity and a lower die cavity which are used for molten plastics to pass through respectively so as to form an upper plastic plate blank and a lower plastic plate blank, and a heating channel which is arranged between the upper die cavity and the lower die cavity and used for allowing a glass fiber infiltrating belt to pass through, wherein the surface of the glass fiber infiltrating belt is heated to a molten state by the heating channel;
the rolling die is used for pressing the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltrating belt extruded from the extrusion die together;
and the shaping mold is used for shaping and cooling the upper plastic plate blank, the lower plastic plate blank and the glass fiber infiltration belt which are pressed together to form the glass fiber infiltration plastic composite belt.
2. The mold for producing glass fiber-infiltrated plastic composite strips according to claim 1, wherein: the extrusion die comprises an upper die plate, a middle die plate and a lower die plate which are sequentially arranged from top to bottom, wherein an upper die cavity and a lower die cavity are respectively formed in the upper die plate and the lower die plate, and a heating channel is formed in the middle die plate.
3. The mold for producing glass fiber-infiltrated plastic composite strips according to claim 2, wherein: the rolling die comprises an upper pressing roller and a lower pressing roller, and polytetrafluoroethylene coatings are coated on the surfaces of the upper pressing roller and the lower pressing roller.
4. The mold for producing glass fiber-impregnated plastic composite strips according to claim 3, wherein: the rolling die is connected with a heating temperature control device.
5. The mold for producing glass fiber-infiltrated plastic composite strips according to claim 4, wherein: the shaping mold comprises an upper shaping mold and a lower shaping mold, and the upper shaping mold and the lower shaping mold are both provided with a vacuum passage and a cooling water passage.
6. A method for producing a glass fiber-infiltrated plastic composite strip, comprising using the mold of any one of claims 1 to 5, comprising the steps of:
the method comprises the following steps of uniformly distributing plastic melting materials sent by an extruder in an extrusion die to form an upper plastic plate blank and a lower plastic plate blank, enabling a glass fiber infiltration belt to penetrate through a preheating channel of the extrusion die to achieve the effect of surface melting, pressing the upper plastic plate blank and the lower plastic plate blank with the preheated glass fiber infiltration belt by a rolling die, then enabling the upper plastic plate blank and the lower plastic plate blank to enter a shaping die, and cooling and shaping the pressed composite belt by the shaping die to form the glass fiber infiltration plastic composite belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111434283.7A CN114083733A (en) | 2021-11-29 | 2021-11-29 | Mold and method for producing glass fiber infiltrated plastic composite strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111434283.7A CN114083733A (en) | 2021-11-29 | 2021-11-29 | Mold and method for producing glass fiber infiltrated plastic composite strip |
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| Publication Number | Publication Date |
|---|---|
| CN114083733A true CN114083733A (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111434283.7A Pending CN114083733A (en) | 2021-11-29 | 2021-11-29 | Mold and method for producing glass fiber infiltrated plastic composite strip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195070A (en) * | 2022-07-16 | 2022-10-18 | 广东皓强科技有限公司 | Surface coating forming process and equipment for hollow plastic template capable of compounding glass fibers on line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905536A (en) * | 2009-06-08 | 2010-12-08 | 王广武 | Preparation method of hot-extruded high molecular material by means of rolling and forming and assembly equipment thereof |
| CN103465486A (en) * | 2013-09-02 | 2013-12-25 | 大连塑料研究所有限公司 | Continuous production method of reinforced high-strength plastic plate |
| CN106273555A (en) * | 2016-08-05 | 2017-01-04 | 振石集团华美新材料有限公司 | A kind of high glass fiber content continuous fiber reinforced thermoplastic material, Preparation equipment and preparation method thereof |
-
2021
- 2021-11-29 CN CN202111434283.7A patent/CN114083733A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905536A (en) * | 2009-06-08 | 2010-12-08 | 王广武 | Preparation method of hot-extruded high molecular material by means of rolling and forming and assembly equipment thereof |
| CN103465486A (en) * | 2013-09-02 | 2013-12-25 | 大连塑料研究所有限公司 | Continuous production method of reinforced high-strength plastic plate |
| CN106273555A (en) * | 2016-08-05 | 2017-01-04 | 振石集团华美新材料有限公司 | A kind of high glass fiber content continuous fiber reinforced thermoplastic material, Preparation equipment and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195070A (en) * | 2022-07-16 | 2022-10-18 | 广东皓强科技有限公司 | Surface coating forming process and equipment for hollow plastic template capable of compounding glass fibers on line |
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