CN112917941B - Rail transit composite end wall forming tool and forming method thereof - Google Patents
Rail transit composite end wall forming tool and forming method thereof Download PDFInfo
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- CN112917941B CN112917941B CN202110256805.2A CN202110256805A CN112917941B CN 112917941 B CN112917941 B CN 112917941B CN 202110256805 A CN202110256805 A CN 202110256805A CN 112917941 B CN112917941 B CN 112917941B
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- sliding block
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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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
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- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention relates to the field of rail transit, in particular to a rail transit composite end wall forming tool which comprises a bottom die, a guide structure and a movable sliding block set, wherein the bottom die is provided with a female die molded surface, the movable sliding block set is enclosed to form a cavity for workers to enter and exit from the cavity, the guide structure is fixed on the bottom die, the movable sliding block set can slide along the guide structure, the movable sliding block set is provided with a movable molded surface, when the movable molded surface is abutted against the movable molded surface, the movable sliding block set and the bottom die are enclosed to form a forming groove for prepreg to be laid, and the movable molded surface is arranged on one side close to the cavity. The arrangement of the cavity is convenient for manually paving and pasting prepreg on the inner side of the die, the operation is convenient, the internal demoulding can be realized through the arrangement of the movable sliding block group and the guide group, the demoulding stroke is shorter, the workload of workers is effectively reduced, and the forming efficiency is improved.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a rail transit composite end wall forming tool.
Background
The existing rail transit vehicle body mainly adopts a metal structure body, but the mass, the performance and the cost of the metal structure body are limited, so that the light rail transit building gradually develops into a new rail transit trend in order to adapt to the increasing new rail transit requirement. The novel composite material carriage is divided into an intermediate unit module, an end wall and other parts which are wound and laid by a plurality of sections of car bodies, but a forming die corresponding to the composite material car body does not exist at present, so how to provide a rail transit composite material end wall forming tool to adapt to the production of the composite material end wall is a technical problem which needs to be solved by technical personnel in the field at present. In view of the above problems, the designer actively makes research and innovation based on the practical experience and professional knowledge that the engineering of the products is applied for many years and by matching with the application of the theory, so as to create a rail transit composite end wall forming tool, and the tool has higher practicability.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to provide a track traffic combined material headwall shaping frock to the production of adaptation combined material headwall.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a rail transit combined material headwall shaping frock, includes die block, guide structure and activity sliding block group, the die block has the bed die profile, the activity sliding block group encloses to close vacuole formation, inside the cavity supplies workman business turn over cavity, guide structure fixes on the die block, activity sliding block group can follow guide structure slides, activity sliding block group has movable profile, when activity profile and activity profile offset, activity sliding block group and die block enclose to close the shaping groove that forms and supply prepreg to spread, activity profile sets up and is being close to one side of cavity.
Furthermore, the movable sliding block set comprises corner sliding blocks and side sliding blocks, the corner sliding blocks are arranged at four corners of the movable sliding block set, and the side sliding blocks are connected with two adjacent corner sliding blocks.
Furthermore, the guide structure comprises a plurality of guide blocks, and at least one guide block is arranged at the bottom of each corner sliding block and the bottom of each side sliding block.
Furthermore, dovetail grooves are formed in the lower ends of the corner sliding blocks and the lower ends of the side sliding blocks, and the guide blocks are arranged corresponding to the dovetail grooves.
Furthermore, the corner sliding block and the side sliding block respectively comprise a sliding block body and a sliding block back plate, a plurality of weight reduction grooves are formed in the side face, far away from the movable molded surface, of the sliding block body, and the sliding block back plate is fixedly connected with the sliding block body and used for sealing the weight reduction grooves.
Furthermore, one side of the guide block, which is far away from the movable molded surface, is provided with a slide block limiting block for limiting the sliding of the movable slide block group.
Furthermore, demountable installation has the antifriction plate on the die block, the antifriction plate sets up between two adjacent guide blocks.
The upper cover plate is fixed to the top of the movable sliding block group, and the shape of the upper cover plate is the same as that of the top of the movable sliding block group.
And one end of the driving mechanism is fixed on one side of the movable sliding block group, which is far away from the cavity, and is used for driving the movable sliding block group to slide.
A method for molding a composite material vehicle body for rail transit,
step one, installing a rail transit composite end wall forming tool, and pushing a movable sliding block set to a die assembly position through a driving mechanism;
removing the driving mechanism, and fixing adjacent corner sliding blocks and side sliding blocks;
step three, installing an upper cover plate;
fourthly, paving and pasting prepreg on the inner side surface of a forming groove formed by enclosing the inner side of the movable sliding block group and the bottom die;
and step five, coating a vacuum bag outside the bottom die and the movable sliding block set, starting bagging by the vacuum bag from the bottom surface inside the forming groove and extending to the edge of the bottom die, and putting the bag into an autoclave for curing and forming after bagging.
The invention has the beneficial effects that:
according to the invention, through the arrangement of the side edge slide blocks and the corner edge slide blocks, the outward demolding is simple and quick, and the operation is convenient when the prepreg is manually laid and adhered on the outer side of the mold. The movable profile of activity sets up in the one side of keeping away from the cavity, makes the prepreg of paving on the movable profile be heated evenly, is heated rapidly, has effectively shortened the time of heating in the autoclave.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an end wall in the background art of the present invention.
Fig. 2 is a schematic structural diagram of a rail transit composite headwall forming tool in the invention.
Fig. 3 is a schematic view of the internal structure of a rail transit composite headwall forming tool in the invention.
FIG. 4 is a schematic view of the connection between the bottom mold and the guide block of the present invention.
FIG. 5 is a schematic view of the internal structure of the movable slider group of the present invention.
FIG. 6 is a schematic view of the vacuum bagging of the present invention.
Reference numerals: 1. bottom die; 2. corner sliders; 3. a side slider; 4. a cavity; 12. a female die profile; 21. a movable profile; 5. a guide block; 22. a dovetail groove; 6. forming a groove; 7. A slider stopper; 8. a wear plate; 11. an upper cover plate; 9. a drive mechanism; 31. a slider body; 32. a slider back plate; 33. and a weight reduction groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
1-6, including die block 1, guide structure and activity slider group, die block 1 has female mould profile 12, the cavity 4 is formed in the enclosure of activity slider group, cavity 4 supplies the workman to pass in and out inside cavity 4, guide structure fixes on die block 1, the activity slider group can slide along guide structure, the activity slider group has activity profile 21, when activity profile 21 and activity profile 21 offset, the formation of enclosing of activity slider group and die block 1 supplies prepreg to spread molding groove 6 that pastes, activity profile 21 sets up in the one side that is close to cavity 4. The movable sliding block set comprises corner sliding blocks 2 and side sliding blocks 3, the corner sliding blocks 2 are arranged at four corners of the movable sliding block set, and the side sliding blocks 3 are connected with the adjacent two corner sliding blocks 2.
According to the invention, the movable sliding block set is moved outwards through the arrangement of the side sliding blocks 3 and the corner sliding blocks, the shrinkage rate of the prepreg cured by the autoclave is larger than that of the prepreg, demoulding is simple and rapid, the arrangement of the cavity 4 is convenient for manually paving and pasting the prepreg on the inner side of the mould, and operation is convenient. According to the invention, the internal demoulding can be realized through the arrangement of the movable sliding block group and the guide group, the demoulding stroke is shorter, the workload of workers is effectively reduced, and the forming efficiency is improved. A forming groove 6 is formed by enclosing the movable sliding block group and the bottom die 1 for laying and adhering prepreg, and the shape of the bottom die 1 is consistent with that of the cross section of the end wall.
Preferably, the guiding structure comprises a plurality of guiding blocks 5, and at least one guiding block 5 is arranged at the bottom of each corner sliding block 2 and each side sliding block 3. Specifically, the bottom of the corner slider 2 is provided with a guide block 5, the bottom of the side slider 3 is provided with two guide blocks 5, the lower ends of the corner slider 2 and the side slider 3 are provided with dovetail grooves 22, and the guide blocks 5 are arranged corresponding to the dovetail grooves 22. The guide block 5 is arranged to guide the sliding of the movable sliding block set, the guide block 5 is perpendicular to the sliding block 2 and the side sliding block 3 at each corner, the prepreg is convenient to demould, one side, away from the movable molded surface 21, of the guide block 5 is provided with a sliding block limiting block 7, and the sliding limiting block partially protrudes out of the guide block 5 and is used for limiting the sliding of the movable sliding block set and preventing the guide block 5 from dropping off the bottom die 1 plane in the sliding process. Dovetail grooves 22 are formed in the lower ends of the corner sliding blocks 2 and the lower ends of the side sliding blocks 3, and the guide blocks 5 are arranged corresponding to the dovetail grooves 22. According to the invention, the dovetail groove 22 and the guide block 5 are correspondingly arranged, so that the movable sliding block set can be effectively prevented from toppling, and the stability of the tool during installation is ensured.
Preferably, the corner slider 2 and the side slider 3 each include a slider body 31 and a slider back plate 32, a plurality of weight-reducing grooves 33 are formed in the side surface of the slider body 31 away from the movable profile 21, and the slider back plate 32 is fixedly connected with the slider body 31 and used for sealing the weight-reducing grooves 33. Through the setting that subtracts weight groove 33 can make prepreg be heated evenly when the autoclave solidification when lightening activity sliding block group quality, shorten the heat time, can protect the vacuum bag when the whole bagging-off of vacuum bag through the setting of slider backplate 32, damage to the vacuum bag when preventing to take out the vacuum.
Preferably, the wear plate 8 is detachably mounted on the bottom die 1, and the wear plate 8 is disposed between two adjacent guide blocks 5 to avoid friction loss caused by the sliding of the driving mechanism 9 on the guide blocks 5.
Preferably, the sliding block set further comprises an upper cover plate 11, the upper cover plate 11 is fixed on the top of the sliding block set, and the shape of the upper cover plate 11 is the same as that of the top of the sliding block set. The movable sliding block set is fixed through the upper cover plate, deformation of the movable sliding block set is avoided, and the movable sliding block set is damaged due to the fact that the height is different.
Preferably, the sliding block device further comprises a driving mechanism 9, in this embodiment, the driving mechanism 9 is a hand-operated worm screw mechanism, and one end of the driving mechanism 9 is fixed on the side of the movable sliding block set away from the cavity 4 for driving the movable sliding block set to slide.
A method for molding a composite material vehicle body for rail transit,
step one, installing a rail transit composite end wall forming tool, and pushing a movable sliding block set to a die assembly position through a driving mechanism 9;
step two, removing the driving mechanism 9, and fixing the adjacent corner sliding blocks 2 and the side sliding blocks 3;
step three, installing an upper cover plate 11;
fourthly, paving and pasting prepreg on the inner side surface of a forming groove 6 formed by enclosing the inner side of the movable sliding block group and the bottom die 1;
and step five, coating a vacuum bag outside the bottom die 1 and the movable sliding block set, starting bagging by the vacuum bag from the bottom surface inside the forming groove 6 and extending to the edge of the bottom die 1, and putting the bag into an autoclave for curing and forming.
It should be noted that, the specific steps of installing the rail transit composite headwall forming tool in the first step are as follows:
s1, installing an abrasion-resistant plate 8 and a guide block 5 on the bottom die 1;
s2: mounting the corner slide block 2 and mounting a slide block limiting block 7;
s3: the side slider 3 is mounted, the side slider 3 and the corner slider 2 are fixed by screws, and the side slider 3 and the bottom die 1 are fixed by screws.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a track traffic combined material headwall shaping frock which characterized in that: the prepreg forming die comprises a bottom die (1), a guide structure and a movable sliding block set, wherein the bottom die (1) is provided with a female die molded surface (12), the movable sliding block set is enclosed to form a cavity (4), the cavity (4) is used for workers to enter and exit the cavity (4), the guide structure is fixed on the bottom die (1), the movable sliding block set can slide along the guide structure, the movable sliding block set is provided with a movable molded surface (21), when the movable molded surface (21) and the movable molded surface (21) are abutted, the movable sliding block set and the bottom die (1) are enclosed to form a forming groove (6) for prepreg paving, and the movable molded surface (21) is arranged on one side close to the cavity (4);
the corner sliding block (2) and the side sliding block (3) both comprise sliding block bodies (31) and sliding block back plates (32), a plurality of weight reduction grooves (33) are formed in the side faces, far away from the movable molded surface (21), of the sliding block bodies (31), and the sliding block back plates (32) are fixedly connected with the sliding block bodies (31) and used for sealing the weight reduction grooves (33).
2. The rail transit composite headwall forming tool according to claim 1, characterized in that: the movable sliding block set comprises corner sliding blocks (2) and side sliding blocks (3), the corner sliding blocks (2) are arranged at four corners of the movable sliding block set, and the side sliding blocks (3) are connected with two adjacent corner sliding blocks (2).
3. The rail transit composite headwall forming tool according to claim 2, characterized in that: the guide structure comprises a plurality of guide blocks (5), and at least one guide block (5) is arranged at the bottom of each corner sliding block (2) and the bottom of each side sliding block (3).
4. The rail transit composite headwall forming tool according to claim 3, characterized in that: dovetail grooves (22) are respectively formed in the lower ends of the corner sliding blocks (2) and the lower ends of the side sliding blocks (3), and the guide blocks (5) are arranged corresponding to the dovetail grooves (22).
5. The rail transit composite headwall forming tool according to claim 3, characterized in that: one side of the guide block (5) far away from the movable molded surface (21) is provided with a sliding block limiting block (7) for limiting the sliding of the movable sliding block set.
6. The rail transit composite headwall forming tool according to claim 2, characterized in that: the wear-resisting plate is characterized in that a wear-resisting plate (8) is detachably mounted on the bottom die (1), and the wear-resisting plate (8) is arranged between the two adjacent guide blocks (5).
7. The rail transit composite headwall forming tool according to claim 2, characterized in that: the sliding block group structure is characterized by further comprising an upper cover plate (11), wherein the upper cover plate (11) is fixed to the top of the movable sliding block group, and the shape of the upper cover plate (11) is the same as that of the top of the movable sliding block group.
8. The rail transit composite headwall forming tool according to claim 2, characterized in that: the sliding block mechanism is characterized by further comprising a driving mechanism (9), wherein one end of the driving mechanism (9) is fixed on one side, far away from the cavity (4), of the movable sliding block set and used for driving the movable sliding block set to slide.
9. The rail transit composite material end wall forming tool rail transit composite material vehicle body forming method according to any one of claims 1 to 8 is characterized in that:
step one, installing a rail transit composite end wall forming tool, and pushing a movable sliding block set to a die assembly position through a driving mechanism (9);
step two, removing the driving mechanism (9), and fixing the adjacent corner sliding blocks (2) and the side sliding blocks (3);
step three, installing an upper cover plate (11);
fourthly, paving and pasting prepreg on the inner side surface of a forming groove (6) formed by enclosing the inner side of the movable sliding block group and the bottom die (1);
and step five, coating a vacuum bag outside the bottom die (1) and the movable sliding block set, starting bagging by the vacuum bag from the bottom surface inside the forming groove (6) and extending to the edge of the bottom die (1), and putting the bag into an autoclave for curing and forming after bagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256805.2A CN112917941B (en) | 2021-03-09 | 2021-03-09 | Rail transit composite end wall forming tool and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256805.2A CN112917941B (en) | 2021-03-09 | 2021-03-09 | Rail transit composite end wall forming tool and forming method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112917941A CN112917941A (en) | 2021-06-08 |
| CN112917941B true CN112917941B (en) | 2021-11-02 |
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| CN202110256805.2A Active CN112917941B (en) | 2021-03-09 | 2021-03-09 | Rail transit composite end wall forming tool and forming method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113276327B (en) * | 2021-07-16 | 2021-09-28 | 常州市新创智能科技有限公司 | End wall jig and demolding method |
| CN114161736A (en) * | 2021-11-26 | 2022-03-11 | 昌河飞机工业（集团）有限责任公司 | Tool for ceramic composite armor forming control and manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209666159U (en) * | 2019-03-05 | 2019-11-22 | 台州市黄岩美鼎模具有限公司 | The synchronous angled core-pulling mechanism of the multi-slide of decorative pattern basket mold |
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- 2021-03-09 CN CN202110256805.2A patent/CN112917941B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209666159U (en) * | 2019-03-05 | 2019-11-22 | 台州市黄岩美鼎模具有限公司 | The synchronous angled core-pulling mechanism of the multi-slide of decorative pattern basket mold |
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| CN112917941A (en) | 2021-06-08 |
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