CN110561793A - LFT-D product and manufacturing method and manufacturing device thereof - Google Patents
LFT-D product and manufacturing method and manufacturing device thereof Download PDFInfo
- Publication number
- CN110561793A CN110561793A CN201910809156.7A CN201910809156A CN110561793A CN 110561793 A CN110561793 A CN 110561793A CN 201910809156 A CN201910809156 A CN 201910809156A CN 110561793 A CN110561793 A CN 110561793A
- Authority
- CN
- China
- Prior art keywords
- blank
- glass fiber
- prepreg tape
- fiber prepreg
- lft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/78—Moulding material on one side only of the preformed part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
The invention discloses an LFT-D product and a manufacturing method and a manufacturing device thereof, wherein the product comprises: the glass fiber prepreg is characterized by comprising a blank layer, wherein a unidirectional glass fiber prepreg tape is arranged above the blank layer. The manufacturing method comprises the following steps: placing the blank into a lower die; preheating the unidirectional glass fiber prepreg tape, and placing the unidirectional glass fiber prepreg tape on the upper surface of the blank when the temperature difference between the temperature of the unidirectional glass fiber prepreg tape and the temperature of the blank conforms to a set temperature difference range; and fusing the unidirectional glass fiber prepreg tape and the blank under the action of the upper die, the lower die and the press machine to obtain the LFT-D product. The manufacturing device includes: the first manipulator is used for grabbing and placing the unidirectional glass fiber prepreg tape; the preheating unit is arranged on the first manipulator and is used for preheating the unidirectional glass fiber prepreg tape; the lower die is used for accommodating blanks; and the upper die and the press machine are matched with the lower die for use so as to fuse the blank and the prepreg tape. Aiming at solving the problem of poor mechanical strength of the existing product.
Description
Technical Field
The invention relates to an LFT-D automobile part production process, in particular to an LFT-D product and a manufacturing method and a manufacturing device thereof.
background
The product produced by the LFT-D process is manufactured into a final product by adopting a hot die pressing mode after adding glass fiber into a thermoplastic base material. Because the mechanical property of the thermoplastic base material is poor, the added glass fiber is also discontinuous fiber, and the mechanical strength of the manufactured final product is poor.
disclosure of Invention
in view of the above-mentioned disadvantages of the prior art, it is an object of the present invention to at least provide a solution
to achieve the above and other related objects, one embodiment of the present invention provides an LFT-D article comprising: the glass fiber prepreg is characterized by comprising a blank layer, wherein a unidirectional glass fiber prepreg tape is arranged above the blank layer.
the invention also provides a manufacturing method of the LFT-D product, which comprises the following steps:
Placing the blank into a lower die;
Preheating a unidirectional glass fiber prepreg tape, and placing the unidirectional glass fiber prepreg tape on the upper surface of the blank when the temperature difference between the temperature of the unidirectional glass fiber prepreg tape and the temperature of the blank conforms to a set temperature difference range;
And the unidirectional glass fiber prepreg tape and the blank are fused under the action of an upper die, a lower die and a press machine to obtain the LFT-D product.
Optionally, the set temperature difference range is 10 ℃ or less.
Optionally, the set temperature difference range is 5 ℃ or less.
optionally, the unidirectional glass fiber prepreg tape is preheated, and when the temperature of the unidirectional glass fiber prepreg tape is the same as the temperature of the blank, the unidirectional glass fiber prepreg tape is placed on the upper surface of the blank.
In one embodiment, the step of placing the blank into the lower mold further comprises:
And conveying the blank extruded by the extruding device to the lower die.
The invention provides a device for manufacturing an LFT-D product, which comprises:
the first manipulator is used for grabbing and placing the unidirectional glass fiber prepreg tape;
the preheating unit is arranged on the first manipulator and is used for preheating the unidirectional glass fiber prepreg tape;
The lower die is used for accommodating blanks;
And the upper die and the press machine are matched with the lower die for use so as to fuse the blank and the prepreg tape.
Optionally, the manufacturing apparatus further comprises:
and the extrusion unit is used for extruding the blank.
Optionally, the manufacturing apparatus further comprises:
And the second manipulator is used for placing the blank into the lower die.
optionally, the manufacturing apparatus further comprises:
And the conveying unit is used for conveying the blank from the extruding device to the second mechanical arm.
according to the technical scheme provided by the embodiment of the invention, the mechanical strength of the product is increased on the premise of not modifying production equipment in a large scale, not increasing the product cost greatly and not changing the original size of the product.
drawings
Fig. 1 is a schematic structural view of a single-phase glass fiber prepreg tape according to an embodiment of the present invention before being fused with a blank.
Fig. 2 is a schematic structural view of a single-phase glass fiber prepreg tape and a blank after fusion according to an embodiment of the present invention.
Description of the element reference numerals
| Reference numerals | name (R) |
| 1 | Blank material |
| 2 | Upper die |
| 3 | Lower die |
| 4 | Unidirectional glass fiber prepreg tape |
| 5 | press machine |
| 6 | First manipulator |
| 7 | article of manufacture |
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not technically significant, and any structural modifications, ratio changes or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The present invention provides an LFT-D article, comprising: the glass fiber prepreg is characterized by comprising a blank layer, wherein a unidirectional glass fiber prepreg tape is arranged above the blank layer. The blank layer is a polypropylene layer.
According to the technical scheme provided by the embodiment of the invention, the unidirectional glass fiber prepreg tape is only added on the blank layer, and other structures are not changed, so that the mechanical strength of the product is increased on the premise of not modifying production equipment in a large scale, not greatly increasing the product cost and not changing the original size of the product. The unidirectional glass fiber prepreg tape plays a role of continuous fibers in products, so that the mechanical strength of the products is improved by 25 percent compared with the products without the unidirectional glass fiber prepreg tape.
As shown in fig. 1-2, the present invention further provides a method for manufacturing an LFT-D product, comprising the steps of:
Placing the blank into a lower die 3;
Preheating a unidirectional glass fiber prepreg tape 4, and placing the unidirectional glass fiber prepreg tape on the upper surface of the blank when the temperature difference between the temperature of the unidirectional glass fiber prepreg tape 4 and the temperature of the blank 1 conforms to a set temperature difference range;
And the unidirectional glass fiber prepreg tape and the blank are fused under the action of an upper die 2, a lower die 3 and a press machine 5 to obtain the LFT-D product.
according to the technical scheme provided by the embodiment of the invention, the unidirectional glass fiber prepreg tape is only added on the blank layer, and other structures are not changed, so that the mechanical strength of the product is increased on the premise of not modifying production equipment in a large scale, not greatly increasing the product cost and not changing the original size of the product.
In one embodiment, the predetermined temperature difference range is 10 ℃ or less. The temperature difference is controlled within the range, and the fusion effect of the temperature difference and the temperature can be effectively ensured.
In one embodiment, the predetermined temperature difference range is 5 ℃ or less. Compared with the method of controlling the temperature difference within 10 ℃, the method of controlling the temperature difference within 5 ℃ has better fusion effect.
In a certain embodiment, preheat one-way glass fiber prepreg tape 4, when the temperature of one-way glass fiber prepreg tape with the temperature of blank 1 is the same, will one-way glass fiber prepreg tape 4 is arranged in the upper surface of blank 1, blank 1 is the same with one-way glass fiber prepreg tape 4 temperature, and its effect that fuses makes blank 1 and one-way glass fiber prepreg tape 4 fuse completely.
in one embodiment, the step of placing the blank into the lower mold further comprises:
And conveying the blank extruded by the extruding device to the lower die.
As shown in fig. 1-2, the present invention provides an apparatus for manufacturing an LFT-D product, the apparatus comprising:
the first manipulator 6 is used for grabbing and releasing the unidirectional glass fiber prepreg tape 4;
The preheating unit is arranged on the first manipulator and is used for preheating the unidirectional glass fiber prepreg tape;
The lower die 3 is used for accommodating blanks;
and the upper die 2 and the press machine 1 are matched with the lower die 3 for use, so that the blank and the prepreg tape are fused to obtain the product 7.
according to the technical scheme provided by the embodiment of the invention, the unidirectional glass fiber prepreg tape is only added on the blank layer, and other structures are not changed, so that the mechanical strength of the product is increased on the premise of not modifying production equipment in a large scale, not greatly increasing the product cost and not changing the original size of the product. The unidirectional glass fiber prepreg tape plays a role of continuous fibers in products, so that the mechanical strength of the products is improved by 25 percent compared with the products without the unidirectional glass fiber prepreg tape.
the preheating unit comprises a control circuit and a heating device, the heating device can be a resistance heating wire, and the control circuit can control heating
In one embodiment, the manufacturing apparatus further includes:
And the extrusion unit is used for extruding the blank.
In one embodiment, the manufacturing apparatus further includes:
and the second manipulator is used for placing the blank into the lower die.
in one embodiment, the manufacturing apparatus further includes:
And the conveying unit is used for conveying the blank from the extruding device to the second mechanical arm.
the extrusion unit, the conveying unit, the second mechanical arm, the first mechanical arm, the upper die, the lower die and the press machine are matched for use, so that automatic production is realized, and the production efficiency is ensured.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An LFT-D article, comprising: the glass fiber prepreg is characterized by comprising a blank layer, wherein a unidirectional glass fiber prepreg tape is arranged above the blank layer.
2. a method for making an LFT-D product, comprising the steps of:
placing the blank into a lower die;
preheating a unidirectional glass fiber prepreg tape, and placing the unidirectional glass fiber prepreg tape on the upper surface of the blank when the temperature difference between the temperature of the unidirectional glass fiber prepreg tape and the temperature of the blank conforms to a set temperature difference range;
And the unidirectional glass fiber prepreg tape and the blank are fused under the action of an upper die, a lower die and a press machine to obtain the LFT-D product.
3. The method of claim 2, wherein the predetermined temperature difference is less than or equal to 10 ℃.
4. The method of claim 3, wherein the predetermined temperature difference is less than or equal to 5 ℃.
5. the method of claim 3, wherein the unidirectional fiberglass prepreg tape is preheated and is placed on the upper surface of the preform when the temperature of the unidirectional fiberglass prepreg tape is the same as the temperature of the preform.
6. the method of claim 1, wherein the step of placing the blank into the lower mold further comprises:
and conveying the blank extruded by the extruding device to the lower die.
7. An apparatus for fabricating an LFT-D article, the apparatus comprising:
The first manipulator is used for grabbing and placing the unidirectional glass fiber prepreg tape;
The preheating unit is arranged on the first manipulator and is used for preheating the unidirectional glass fiber prepreg tape;
The lower die is used for accommodating blanks;
And the upper die and the press machine are matched with the lower die for use so as to fuse the blank and the prepreg tape.
8. The apparatus for fabricating an LFT-D article according to claim 7, further comprising:
And the extrusion unit is used for extruding the blank.
9. The apparatus for fabricating an LFT-D article according to claim 8, further comprising:
And the second manipulator is used for placing the blank into the lower die.
10. The apparatus for fabricating an LFT-D article according to claim 9, further comprising:
And the conveying unit is used for conveying the blank from the extruding device to the second mechanical arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809156.7A CN110561793A (en) | 2019-08-29 | 2019-08-29 | LFT-D product and manufacturing method and manufacturing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809156.7A CN110561793A (en) | 2019-08-29 | 2019-08-29 | LFT-D product and manufacturing method and manufacturing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110561793A true CN110561793A (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910809156.7A Pending CN110561793A (en) | 2019-08-29 | 2019-08-29 | LFT-D product and manufacturing method and manufacturing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110561793A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1910037A (en) * | 2004-01-14 | 2007-02-07 | 通用电气公司 | Multilayer product made out of a substrate and on either side at least one cover layer, process for the manufacture of a multilayer product and painted multilayer product and process for painting a mu |
| CN103273660A (en) * | 2013-05-06 | 2013-09-04 | 福建海源新材料科技有限公司 | Long-fiber reinforced thermoplastic composite material of longitude and latitude glass fiber surface, and molding method and application thereof |
| CN104228295A (en) * | 2013-06-14 | 2014-12-24 | 北京化工大学 | Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material |
| CN109109339A (en) * | 2018-07-12 | 2019-01-01 | 凌云工业股份有限公司上海凌云汽车研发分公司 | The preparation of thermoplastic resin based composite material and the method for enhancing anticollision component |
-
2019
- 2019-08-29 CN CN201910809156.7A patent/CN110561793A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1910037A (en) * | 2004-01-14 | 2007-02-07 | 通用电气公司 | Multilayer product made out of a substrate and on either side at least one cover layer, process for the manufacture of a multilayer product and painted multilayer product and process for painting a mu |
| CN103273660A (en) * | 2013-05-06 | 2013-09-04 | 福建海源新材料科技有限公司 | Long-fiber reinforced thermoplastic composite material of longitude and latitude glass fiber surface, and molding method and application thereof |
| CN104228295A (en) * | 2013-06-14 | 2014-12-24 | 北京化工大学 | Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material |
| CN109109339A (en) * | 2018-07-12 | 2019-01-01 | 凌云工业股份有限公司上海凌云汽车研发分公司 | The preparation of thermoplastic resin based composite material and the method for enhancing anticollision component |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191213 |