CN214820411U - Secondary injection molding mold for continuous carbon fiber reinforced thermoplastic sheet - Google Patents
Secondary injection molding mold for continuous carbon fiber reinforced thermoplastic sheet Download PDFInfo
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- CN214820411U CN214820411U CN202120543385.1U CN202120543385U CN214820411U CN 214820411 U CN214820411 U CN 214820411U CN 202120543385 U CN202120543385 U CN 202120543385U CN 214820411 U CN214820411 U CN 214820411U
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Abstract
The utility model discloses a secondary injection molding die for continuous carbon fiber reinforced thermoplastic sheets, which comprises a fixed die and a movable die which are horizontally opened and closed, wherein an injection molding cavity is formed between the fixed die and the movable die, a telescopic fixed die suspension mechanism capable of extending to the injection molding cavity is embedded on the fixed die, a telescopic movable die suspension mechanism capable of extending to the injection molding cavity is embedded on the movable die, and the central lines of the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism are collinear; and the continuous carbon fiber reinforced thermoplastic sheet is clamped and fixed by the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism. The utility model clamps the continuous carbon fiber reinforced thermoplastic sheet material for positioning through the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism, can avoid punching on the sheet material, ensures that the continuity of the carbon fiber is not damaged, and effectively ensures the performance of the molded product; and the production period is favorably shortened, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a combined material forming die field especially relates to a continuous carbon fiber reinforcement thermoplasticity sheet secondary injection moulding mould.
Background
As one of the main responsible persons for carbon emission, the automobile industry is striving to realize energy conservation and emission reduction through a light weight approach. Researches show that the weight of the whole automobile is reduced by 10%, and the fuel consumption can be reduced by 6% -8%, so that the light weight of the automobile has important significance for energy conservation and emission reduction. In this regard, developed countries such as europe and the united states have gone ahead, and carbon fiber composite materials are used for automobile parts to replace metal materials, so that the purpose of reducing weight is achieved.
The current more mature foreign application is to use thermosetting carbon fiber composite materials to replace metal materials. However, thermosetting carbon fiber composite materials are difficult to repair once damaged and cannot be recycled, so that the point of environmental protection is very long. In recent years, thermoplastic carbon fiber composite materials have been developed rapidly, and due to their unique recyclability, thermoplastic carbon fiber composite materials can be fully recycled after use, and more material suppliers and main engine plants have started to research on thermoplastic carbon fiber composite materials.
Thermoplastic carbon fiber composites are classified into two types, one containing continuous carbon fibers in a thermoplastic resin and the other containing discontinuous carbon fibers in a thermoplastic resin. The continuous carbon fiber has high price and large limitation on the shape of the finished product, if the material is completely adopted, the performance is better and stronger than that of steel, but the product has high price and is not beneficial to large-scale popularization; the price of the discontinuous carbon fiber is low, the shape of the finished product can be more complicated, but the product performance cannot be compared with that of steel. Therefore, the combination of the two materials is the best choice for large-scale application, the main body adopts discontinuous fibers to form most of the structure, and the key parts use continuous fibers to ensure the performance of the product.
The existing preparation technology is that a thermoplastic sheet containing continuous carbon fibers is processed firstly, and then resin containing discontinuous short fibers is subjected to secondary injection molding for curing, so that local reinforcement is carried out on an injection molding product only containing the short fibers, and the torsion performance and the local strength of the product can be greatly improved.
The existing sheet secondary injection mold is designed by adopting a horizontal mold opening structure, and continuous carbon fiber thermoplastic sheets are fixed in the mold and then subjected to mold closing and injection molding. The prior art uses a mold, on which positioning pins for fixing are designed, and holes are punched on a sheet material, and then the sheet material is hung on the positioning pins of the mold through the holes manually or by a mechanical arm. The existing suspension mode of the die and the sheet has the following defects: 1. a punching procedure and a hanging procedure are additionally required, so that the process flow is prolonged, and the process complexity is increased; 2. the perforation can damage the continuous carbon fibers within the thermoplastic sheet, reducing the performance of the sheet.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a continuous carbon fiber reinforcement thermoplasticity sheet secondary injection moulding mould, can solve the weak point that current secondary injection moulding mould exists in the aspect of the sheet is fixed.
In order to solve the technical problem, the utility model discloses a technical scheme be: the secondary injection molding die for the continuous carbon fiber reinforced thermoplastic sheet comprises a fixed die and a movable die which are horizontally opened and closed, wherein an injection molding cavity is formed between the fixed die and the movable die, a telescopic fixed die suspension mechanism capable of extending to the injection molding cavity is embedded in the fixed die, a telescopic movable die suspension mechanism capable of extending to the injection molding cavity is embedded in the movable die, and the central lines of the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism are collinear; and the continuous carbon fiber reinforced thermoplastic sheet is clamped and fixed by the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism.
In a preferred embodiment of the present invention, the fixed mold and the movable mold are respectively provided with an i-shaped groove perpendicular to the direction of the injection mold cavity, and the telescopic fixed mold hanging mechanism and the telescopic movable mold hanging mechanism are respectively embedded and installed in the i-shaped grooves of the fixed mold and the movable mold.
In a preferred embodiment of the present invention, the telescopic cover half suspending mechanism comprises a cover half fixing plate, a cover half spring, a cover half push plate, a cover half positioning rod and a cover half limiting plate; the fixed die fixing plate and the fixed die limiting plate are respectively fixedly arranged at two ends of an I-shaped groove of the fixed die, the fixed die limiting plate is positioned at one side of the injection molding cavity, and a through hole communicated with the injection molding cavity is formed in the middle of the fixed die limiting plate; the fixed die push plate is slidably embedded in the I-shaped groove, one end of the fixed die positioning rod is fixed on the fixed die push plate, and the other end of the fixed die positioning rod is movably inserted into the through hole of the fixed die limiting plate; the fixed die spring compression type clamping device is arranged between the fixed die fixing plate and the fixed die push plate.
In a preferred embodiment of the present invention, the compression deformation of the cover half spring is greater than or equal to the length of the cover half positioning rod between the cover half push plate and the cover half limiting plate.
In a preferred embodiment of the present invention, the extension length of the cover half positioning rod along the through hole of the cover half limiting plate is greater than or equal to half of the depth of the injection molding cavity.
In a preferred embodiment of the present invention, the telescopic moving die suspension mechanism includes a moving die fixing plate, a moving die spring, a moving die push plate, a moving die positioning rod, and a moving die limiting plate; the movable die fixing plate and the movable die limiting plate are respectively arranged at two ends of an I-shaped groove of the movable die, the movable die limiting plate is positioned at one side of the injection molding cavity, and the middle part of the movable die limiting plate is provided with a through hole communicated with the injection molding cavity; the movable die push plate is slidably embedded in the I-shaped groove, one end of the movable die positioning rod is fixed on the movable die push plate, and the other end of the movable die positioning rod is movably inserted into the through hole of the movable die limiting plate; the movable mould spring compression type is clamped between the movable mould fixing plate and the movable mould push plate.
In a preferred embodiment of the present invention, the compression deformation of the movable die spring is greater than or equal to the length of the movable die positioning rod between the movable die push plate and the movable die limiting plate.
In a preferred embodiment of the present invention, the movable mold positioning rod extends along the through hole of the movable mold limiting plate by a length greater than or equal to half of the depth of the injection mold cavity.
The utility model has the advantages that: the utility model relates to a secondary injection molding mould for continuous carbon fiber reinforced thermoplastic sheets, which is characterized in that a telescopic fixed die hanging mechanism and a telescopic movable die hanging mechanism are symmetrically installed on a fixed die and a movable die in an embedded mode respectively, and the continuous carbon fiber reinforced thermoplastic sheets are clamped by the telescopic fixed die hanging mechanism and the telescopic movable die hanging mechanism for positioning, so that punching on the sheets can be avoided, the continuity of carbon fibers is not damaged, and the performance of the molded products is effectively ensured; the utility model discloses a structural design avoids punching continuous carbon fiber reinforcement thermoplasticity sheet, has shortened production cycle, has improved work efficiency.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of a secondary injection mold for continuous carbon fiber reinforced thermoplastic sheet according to the present invention;
FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1 in an open mold position;
FIG. 4 is a partial schematic structural view of the continuous carbon fiber reinforced thermoplastic sheet of FIG. 1 in a clamped condition;
FIG. 5 is a partial schematic view of FIG. 1 in a clamped condition;
the parts in the drawings are numbered as follows: 1. the novel plastic injection molding device comprises a fixed die, 2 parts of a movable die, 3 parts of an injection molding cavity, 4 parts of an I-shaped groove, 5 parts of a telescopic fixed die hanging mechanism, 6 parts of a telescopic movable die hanging mechanism, 7 parts of a continuous carbon fiber reinforced thermoplastic sheet, 51 parts of a fixed die fixing plate, 52 parts of a fixed die spring, 53 parts of a fixed die push plate, 54 parts of a fixed die positioning rod, 55 parts of a fixed die limiting plate, 61 parts of a movable die fixing plate, 62 parts of a movable die spring, 63 parts of a movable die push plate, 64 parts of a movable die positioning rod and 65 parts of a movable die limiting plate.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-5, an embodiment of the present invention includes:
example 1
The utility model discloses a continuous carbon fiber reinforcement thermoplasticity sheet secondary injection moulding mould, cover half 1 and movable mould 2 that open and shut including the level, constitute injection mold cavity 3 between cover half 1 and the movable mould 2.
I-shaped grooves 4 which are perpendicular to the direction of the injection molding cavity 3 and are symmetrically distributed are respectively chiseled on the fixed die 1 and the movable die 2; a telescopic fixed die hanging mechanism 5 is embedded in an I-shaped groove 4 of the fixed die 1, a telescopic movable die hanging mechanism 6 is embedded in an I-shaped groove 4 of the movable die 2, and the central lines of the telescopic fixed die hanging mechanism 5 and the telescopic movable die hanging mechanism 6 are collinear.
The telescopic fixed die hanging mechanism 5 comprises a fixed die fixing plate 51, a fixed die spring 52, a fixed die push plate 53, a fixed die positioning rod 54 and a fixed die limiting plate 55. Wherein, the cover half fixed plate 51 is fixed with the screw installation respectively with cover half limiting plate 55 the both ends of the I shape recess 4 of cover half 1, just cover half limiting plate 55 is located mould plastics die cavity 3 one side, preferably, the outward flange of cover half limiting plate 55 with cover half 1 orientation the edge parallel and level of mould plastics die cavity 3 one side. The middle part of the fixed die limiting plate 55 is provided with a through hole communicated with the injection molding cavity 3; the fixed die push plate 53 and the fixed die positioning rod 54 are movably embedded in the I-shaped groove 4 of the fixed die 1, specifically, two sides of the fixed die push plate 53 are embedded in the inner side of the I-shaped groove 4 and can slide along the inner side of the I-shaped groove 4; one end of the fixed die positioning rod 54 is fixedly connected to the fixed die push plate 53, and the other end of the fixed die positioning rod is movably inserted into the through hole of the fixed die limit plate 55; the fixed die spring 52 is compressively sandwiched between the fixed die fixing plate 51 and the fixed die push plate 53. In the mold clamping state, the compression deformation amount of the fixed mold spring 52 is greater than or equal to the length of the fixed mold positioning rod 54 between the fixed mold push plate 53 and the fixed mold limit plate 55. The telescopic length of the fixed die positioning rod 54 along the through hole of the fixed die limiting plate 55 is more than or equal to half of the depth of the injection molding cavity 3.
The telescopic movable die suspension mechanism 6 comprises a movable die fixing plate 61, a movable die spring 62, a movable die push plate 63, a movable die positioning rod 64 and a movable die limiting plate 65. Wherein, movable mould fixed plate 61 and movable mould limiting plate 65 are fixed with the screw installation respectively the both ends of the I shape recess 4 of movable mould 2, just movable mould limiting plate 65 is located mould plastics die cavity 3 one side, preferably, movable mould limiting plate 65's outward flange with movable mould 2 orientation mould plastics the edge parallel and level of die cavity 3 one side. The middle part of the movable die limiting plate 65 is provided with a through hole which is communicated with the injection molding cavity 3; the movable die push plate 63 and the movable die positioning rod 64 are movably embedded in the I-shaped groove 4 of the movable die 2, specifically, two sides of the movable die push plate 63 are embedded in the inner side of the I-shaped groove 4 and can slide along the inner side of the I-shaped groove 4; one end of the movable die positioning rod 64 is fixedly connected to the movable die push plate 63, and the other end of the movable die positioning rod is movably inserted into the through hole of the movable die limiting plate 65; the movable die spring 62 is clamped between the movable die fixing plate 61 and the movable die push plate 63 in a compression mode. In the mold clamping state, the compression deformation amount of the movable mold spring 62 is equal to or greater than the length of the movable mold positioning rod 64 between the movable mold push plate 63 and the movable mold stopper plate 65. The telescopic length of the movable die positioning rod 64 along the through hole of the movable die limiting plate 65 is more than or equal to half of the depth of the injection molding cavity 3.
The fixed die positioning rod 54 of the telescopic fixed die suspension mechanism 5 and the movable die positioning rod 64 of the telescopic movable die suspension mechanism 6 can respectively extend out along the through hole of the fixed die limiting plate 55 and the through hole of the movable die positioning plate 65 in the die opening state to the direction of the injection molding cavity 3, and clamp the continuous carbon fiber reinforced thermoplastic sheet 7 in the die opening and incomplete die closing state, so that the continuous carbon fiber reinforced thermoplastic sheet 7 can be effectively clamped and positioned in the non-punching state.
The utility model discloses a theory of operation does:
after the mold is opened, the fixed mold spring 52 deforms and pushes the fixed mold push plate 53 to move outwards, so that the fixed mold positioning rod 54 is driven to move outwards along the through hole of the fixed mold limiting plate 55 until the fixed mold push plate 53 is blocked by the fixed mold limiting plate 55; meanwhile, the movable die spring 62 deforms to push the movable die push plate 63 to move outwards, so that the movable die positioning rod 64 is driven to move outwards along the through hole of the movable die limiting plate 65 until the movable die push plate 63 is blocked by the movable die limiting plate 65;
then the manipulator moves the continuous carbon fiber reinforced thermoplastic sheet to a proper position between the fixed die 1 and the movable die 2;
when the mold is closed to the fixed mold positioning rod 54 and the movable mold positioning rod 64, the continuous carbon fiber reinforced thermoplastic sheet can be clamped, and the manipulator leaves;
and (3) continuously closing the mold, enabling the fixed mold positioning rod 54 and the movable mold positioning rod 64 to retract along the through holes in the fixed mold limiting plate 55 and the movable mold limiting plate 65 respectively by the mold closing force, driving the fixed mold push plate 53 and the movable mold push plate 63 to compress the fixed mold spring 52 and the movable mold spring 62 respectively, and starting injection molding after mold closing is finished.
The utility model relates to a continuous carbon fiber reinforcement thermoplasticity sheet secondary injection moulding mould has following advantage:
1. by respectively embedding and symmetrically installing the telescopic fixed die hanging mechanism and the telescopic movable die hanging mechanism on the fixed die and the movable die and clamping the continuous carbon fiber reinforced thermoplastic sheet material by the telescopic fixed die hanging mechanism and the telescopic movable die hanging mechanism for positioning, punching on the sheet material can be avoided, so that the continuity of carbon fibers is not damaged, and the performance of a molded product is effectively ensured;
2. through the structural design of the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism, the clamping and positioning operation of the continuous carbon fiber reinforced thermoplastic sheet is simple and reliable, and the effective operation of the injection molding process is not influenced;
3. the utility model discloses a structural design avoids punching continuous carbon fiber reinforcement thermoplasticity sheet, has shortened production cycle, has improved work efficiency.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. A secondary injection molding die for a continuous carbon fiber reinforced thermoplastic sheet comprises a fixed die and a movable die which are horizontally opened and closed, wherein an injection molding cavity is formed between the fixed die and the movable die; and the continuous carbon fiber reinforced thermoplastic sheet is clamped and fixed by the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism.
2. The secondary injection molding die for the continuous carbon fiber reinforced thermoplastic sheet according to claim 1, wherein the fixed die and the movable die are respectively provided with an I-shaped groove perpendicular to the direction of the injection molding cavity, and the telescopic fixed die suspension mechanism and the telescopic movable die suspension mechanism are respectively embedded in the I-shaped grooves on the fixed die and the movable die.
3. The secondary injection molding mold for the continuous carbon fiber reinforced thermoplastic sheet according to claim 2, wherein the telescopic fixed mold hanging mechanism comprises a fixed mold fixing plate, a fixed mold spring, a fixed mold push plate, a fixed mold positioning rod and a fixed mold limiting plate; the fixed die fixing plate and the fixed die limiting plate are respectively fixedly arranged at two ends of an I-shaped groove of the fixed die, the fixed die limiting plate is positioned at one side of the injection molding cavity, and a through hole communicated with the injection molding cavity is formed in the middle of the fixed die limiting plate; the fixed die push plate is slidably embedded in the I-shaped groove, one end of the fixed die positioning rod is fixed on the fixed die push plate, and the other end of the fixed die positioning rod is movably inserted into the through hole of the fixed die limiting plate; the fixed die spring compression type clamping device is arranged between the fixed die fixing plate and the fixed die push plate.
4. The continuous carbon fiber reinforced thermoplastic sheet material secondary injection molding mold according to claim 3, wherein the compression deformation amount of the fixed mold spring is greater than or equal to the length of the fixed mold positioning rod between the fixed mold push plate and the fixed mold limiting plate.
5. The secondary injection molding mold for the continuous carbon fiber reinforced thermoplastic sheet according to claim 4, wherein the telescopic length of the fixed mold positioning rod along the through hole of the fixed mold limiting plate is greater than or equal to half of the depth of the injection mold cavity.
6. The secondary injection molding die for the continuous carbon fiber reinforced thermoplastic sheet according to claim 2, wherein the telescopic movable die suspension mechanism comprises a movable die fixing plate, a movable die spring, a movable die push plate, a movable die positioning rod and a movable die limiting plate; the movable die fixing plate and the movable die limiting plate are respectively arranged at two ends of an I-shaped groove of the movable die, the movable die limiting plate is positioned at one side of the injection molding cavity, and the middle part of the movable die limiting plate is provided with a through hole communicated with the injection molding cavity; the movable die push plate is slidably embedded in the I-shaped groove, one end of the movable die positioning rod is fixed on the movable die push plate, and the other end of the movable die positioning rod is movably inserted into the through hole of the movable die limiting plate; the movable mould spring compression type is clamped between the movable mould fixing plate and the movable mould push plate.
7. The mold for secondary injection molding of a continuous carbon fiber reinforced thermoplastic sheet according to claim 6, wherein the compression deformation of the movable mold spring is greater than or equal to the length of the movable mold positioning rod between the movable mold push plate and the movable mold limiting plate.
8. The secondary injection molding die for the continuous carbon fiber reinforced thermoplastic sheet according to claim 7, wherein the telescopic length of the movable die positioning rod along the through hole of the movable die limiting plate is greater than or equal to half of the depth of the injection cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120543385.1U CN214820411U (en) | 2021-03-16 | 2021-03-16 | Secondary injection molding mold for continuous carbon fiber reinforced thermoplastic sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120543385.1U CN214820411U (en) | 2021-03-16 | 2021-03-16 | Secondary injection molding mold for continuous carbon fiber reinforced thermoplastic sheet |
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| CN214820411U true CN214820411U (en) | 2021-11-23 |
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| CN202120543385.1U Active CN214820411U (en) | 2021-03-16 | 2021-03-16 | Secondary injection molding mold for continuous carbon fiber reinforced thermoplastic sheet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589876A (en) * | 2022-02-25 | 2022-06-07 | 歌尔股份有限公司 | Thermoplastic body injection mold and injection molding method |
| CN114750435A (en) * | 2022-04-24 | 2022-07-15 | 歌尔股份有限公司 | Carbon fiber product forming jig and forming process |
| CN115056508A (en) * | 2022-08-11 | 2022-09-16 | 宁波天龙电子股份有限公司 | Thermoplastic forming die based on composite automobile door plate |
-
2021
- 2021-03-16 CN CN202120543385.1U patent/CN214820411U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589876A (en) * | 2022-02-25 | 2022-06-07 | 歌尔股份有限公司 | Thermoplastic body injection mold and injection molding method |
| CN114750435A (en) * | 2022-04-24 | 2022-07-15 | 歌尔股份有限公司 | Carbon fiber product forming jig and forming process |
| CN115056508A (en) * | 2022-08-11 | 2022-09-16 | 宁波天龙电子股份有限公司 | Thermoplastic forming die based on composite automobile door plate |
| CN115056508B (en) * | 2022-08-11 | 2022-11-11 | 宁波天龙电子股份有限公司 | Thermoplastic forming die based on composite automobile door plate |
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