CN210211429U - Thin-wall shell forming die device with rigid plug-in type solid male die - Google Patents
Thin-wall shell forming die device with rigid plug-in type solid male die Download PDFInfo
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- CN210211429U CN210211429U CN201920493185.2U CN201920493185U CN210211429U CN 210211429 U CN210211429 U CN 210211429U CN 201920493185 U CN201920493185 U CN 201920493185U CN 210211429 U CN210211429 U CN 210211429U
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Abstract
The utility model discloses a thin-wall shell forming die device with a rigid plug-in solid male die, which comprises a female die which is divided into at least two opposite parts, wherein the female die is internally provided with a male die; a cavity for forming the shell is formed between the outer wall of the male die and the inner wall of the female die; the male die is of a solid silica gel structure; a mandrel hole which is used for inserting the mandrel and is matched with the shape of the mandrel is formed in the male die; and the port of the mandrel hole is positioned at the tail end of the male die. The glue-accumulating mechanism can eliminate glue accumulation, ensure the uniform wall thickness of the formed shell, and simultaneously, is more convenient and faster to operate.
Description
Technical Field
The utility model relates to the processing equipment field of casing part specifically is a take thin wall casing moulded die device of public mould of bayonet solid core of rigidity.
Background
In order to meet the requirements of human engineering and use comfort, the conventional safety helmet shells such as helmets of various motorcycles or racing cars, engineering helmets and the like are generally processed and formed by adopting light materials, wherein the light materials mainly comprise composite fiber materials, particularly fiber-reinforced thermoplastic matrix materials. When forming helmet shells from thermoplastic composite fibre materials, it is common to arrange portions of fibre-reinforced LFRTP fabric on helmet shell forming equipment to form several layers on top of each other, to heat the multilayer structure and to apply pressure under vacuum for a certain time, and then to perform cooling to a temperature that allows demoulding.
The existing molding equipment mainly comprises a female die 1 divided into two halves and a male die bag 6 arranged inside the female die 1, wherein the male die bag 6 adopts a thin-wall soft bag body structure made of silica gel; when the shell of the safety helmet is formed, the composite fiber materials 2 are firstly stacked one by one against the inner wall of the female mold 1, after the composite fiber materials are stacked, the male mold bag 6 enters the female mold 1, then hot water or hot air or hot oil is filled into the male mold bag 6, the male mold bag 6 is expanded and enlarged, and the extruded fiber materials are in contact with the female mold for forming.
Such a molding apparatus has the following disadvantages: firstly, because the public mould bag is soft thin wall bag body structure, hot water or hot oil that fills in toward public mould bag under the action of gravity, the long-pending phenomenon of glue takes place easily in the inboard, causes the safety helmet top to form very thin top deformation layer 5, and both sides form thick side deformation layer 4, causes the safety helmet wall thickness nonconformity from this, leads to the compressive capacity to reduce, and easy damage simultaneously. Secondly, because compound fiber material need be a fritter earlier and a fritter is put into public mould bag 6 after being folded by female mould 1's inner wall again, consequently when public mould bag 6 gets into, because the inhomogeneity of public mould bag 6 collision causes compound fiber material to receive easily and takes place the skew, leads to the location inaccurate for the safety helmet shaping rate reduces, and shaping quality worsens. And thirdly, when the male mold bag is filled with hot air, the convex part of the outer wall of the male mold bag is formed to be thinner, and the concave part is formed to be thicker, so that the size of the formed part is deviated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at above problem, provide a take thin wall casing moulded die device of bayonet real core public mould of rigidity, it can eliminate long-pending gluey phenomenon, guarantees that fashioned casing wall thickness is even unanimous, and the while operation is convenient quick more.
In order to realize the above purpose, the utility model adopts the technical scheme that:
a thin-wall shell forming die device with a rigid plug-in solid male die comprises a female die which is divided into at least two opposite parts, wherein the female die is internally provided with a male die; a cavity for forming the shell is formed between the outer wall of the male die and the inner wall of the female die; the male die is of a solid silica gel structure; a mandrel hole which is used for inserting the mandrel and is matched with the shape of the mandrel is formed in the male die; and the port of the mandrel hole is positioned at the tail end of the male die.
The utility model is further improved, a stud is fixedly arranged at the center of the bottom end of the mandrel hole; the front end of the mandrel is provided with a threaded hole matched with the stud; the tail end of the mandrel is provided with a head part; the head outer diameter is larger than the mandrel.
The utility model discloses a further improvement, dabber length is less than the degree of depth in dabber hole.
The utility model discloses a further improvement, be provided with the interior axle that runs through in the dabber.
The utility model discloses a further improvement, interior axle and dabber threaded connection.
In the further improvement of the utility model, the threaded hole is arranged at the front end of the inner shaft; the tail end of the inner shaft is provided with an end part; the end portion has an outer diameter greater than the inner shaft.
The utility model discloses a further improvement, be provided with heating coil in the dabber.
The utility model discloses a further improvement, the dabber is cylindric or coniform.
The utility model has the advantages that:
1. the utility model discloses in owing to adopted solid public mould, consequently composite fiber material need not paste on the master model inner wall, but can paste in advance on public mould outer wall, then the master model of operation separation folds, and not only convenient operation has a lot of, has still reduced composite fiber material simultaneously and has taken place the probability that squints, has improved composite material's the accurate nature in location, has improved casing part's production quality and efficiency.
2. The utility model discloses in adopted the public mould of silica gel solid core, it is fixed to insert the shape that realizes public mould through the dabber of rigidity, no longer need go into gas or liquid, consequently not only the operation is more convenient, and the public mould of solid core takes place deformation rate greatly reduced because of the gravity influence simultaneously, has guaranteed the wall thickness homogeneity of shaping casing.
3. The utility model discloses in through the downthehole double-screw bolt that is provided with of dabber at the public mould of solid core, set up the screw hole of matched with at the dabber front end and realize the fine setting to the public mould shape of solid core, can further eliminate the micro deformation of the public mould of solid core that gravity caused, further improve the wall thickness homogeneity of shaping casing.
4. When the utility model discloses a when handstanding the use, up withstand the public mould of real core through the dabber and also can eliminate the micro deformation of the public mould of real core that gravity caused, further improve the wall thickness homogeneity of shaping casing.
Drawings
FIG. 1 is a schematic structural diagram of a forming mold of a conventional helmet shell;
FIG. 2 is a schematic view of a soft male mold bag in a conventional helmet shell mold;
fig. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a schematic structural view of the present invention with a stud and a threaded hole;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
fig. 6 is a schematic structural view of the solid male mold of the present invention;
fig. 7 is a schematic structural view of an inner shaft arranged in the middle core shaft of the present invention;
FIG. 8 is an enlarged view of a portion B of FIG. 7;
fig. 9 is a schematic structural view of the present invention when used in an inverted state.
In the figure: 1. a female die; 2. a composite fiber material; 3. a head portion; 4. a side deformation layer; 5. a bottom deformation layer; 6. a male mold bag; 7. a male die; 8. a mandrel; 9. an end seat; 10. a heating coil; 11. a coolant hole; 12. a heating device; 13. a threaded hole; 14. a stud; 15. an inner shaft; 16. an end portion; 17 mandrel holes.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
As shown in fig. 3-9, the specific structure of the present invention is:
a thin-wall shell forming die device with a rigid plug-in solid male die comprises a female die 1 which is at least divided into two opposite parts, wherein a male die 7 is arranged in the female die 1; a cavity for forming the shell is formed between the outer wall of the male die 7 and the inner wall of the female die 1; the male die 7 is of a solid silica gel structure; a mandrel hole 17 which is used for inserting the mandrel 8 and is matched with the mandrel 8 in shape is formed in the male die 7; the port of the mandrel hole 17 is positioned at the tail end of the male die 7. The mandrel hole 17 is positioned at the central position of the male die 7; the mandrel 8 can be freely inserted and taken out; the head 3 is arranged at the tail end of the male die 7, and the head 3 can be detachably connected and fixed with the female die 1, such as through a bolt; the head 3 may be attached to the mother die 1 by an external pressing mechanism.
In a preferred embodiment, as shown in fig. 4, a stud 14 is fixedly arranged at the center of the bottom end of the mandrel hole 17; the front end of the mandrel 8 is provided with a threaded hole 13 matched with a stud 14; the tail end of the mandrel 8 is provided with a head 3; the head 3 has an outer diameter greater than the mandrel 8.
In a preferred embodiment, as shown in fig. 4, a stud 14 is fixedly arranged at the center of the bottom end of the mandrel hole 17; the front end of the mandrel 8 is provided with a threaded hole 13 matched with a stud 14; the tail end of the mandrel 8 is provided with a head 3; the outer diameter of the head part 3 is larger than that of the mandrel 8; the length of the mandrel 8 is less than the depth of the mandrel hole 17. The head 3 is positioned outside the tail end of the mandrel 8; the threaded hole 13 and the stud 14 can be connected by rotating the mandrel 8, and then, the length of the mandrel 8 is smaller than the depth of the mandrel hole 17, so that the mandrel 8 can control the deformation of the top end of the male die 7 by pulling the stud 14 inwards, the male die 7 cannot sink due to gravity, and the thickness of the cavity is ensured to be consistent.
As shown in fig. 9, in a preferred embodiment, a stud 14 is fixedly arranged at the center of the bottom end of the mandrel hole 17; the front end of the mandrel 8 is provided with a threaded hole 13 matched with a stud 14; the tail end of the mandrel 8 is provided with a head 3; the outer diameter of the head part 3 is larger than that of the mandrel 8; an inner shaft 15 is arranged in the mandrel 8. This embodiment is worked as the utility model discloses use when handstanding, public mould is because the influence of receiving gravity causes public mould top to sink, probably causes the die cavity thickness increase of this department, consequently can insert interior axle 15, withstands upwards through interior axle 15, eliminates the deformation effect of gravity influence.
As shown in fig. 9, in a preferred embodiment, a stud 14 is fixedly arranged at the center of the bottom end of the mandrel hole 17; the front end of the mandrel 8 is provided with a threaded hole 13 matched with a stud 14; the tail end of the mandrel 8 is provided with a head 3; the outer diameter of the head part 3 is larger than that of the mandrel 8; an inner shaft 15 penetrating through the mandrel 8 is arranged in the mandrel; the inner shaft 15 is screwed to the spindle 8. The inner shaft 15 can be in threaded connection with the mandrel 8 to achieve positioning and fixing.
In a preferred embodiment, as shown in fig. 7, the threaded hole 13 is provided at the front end of the inner shaft 15; the tail end of the inner shaft 15 is provided with an end part 16; the end 16 has a larger outer diameter than the inner shaft 15. In order to eliminate the deformation of the male die caused by the influence of gravity, the mandrel 8 is not used for controlling any more, the mandrel 8 is only used for shaping the male die, and the threaded hole in the front end of the inner shaft 15 is connected with the stud 14 to eliminate the fine deformation of the top end of the male die caused by the influence of gravity.
In a preferred embodiment, a heating coil 10 is provided in the mandrel 8. The heating coil 10 can be arranged in the mandrel 8, the male die and the female die are heated simultaneously to improve the forming effect, and the coil 10 can be in a U-shaped structure or can be arranged in the male die in a spiral structure.
In a preferred embodiment, the mandrel 8 is cylindrical or conical. When a conical shape is used, removal and insertion can be more convenient.
The utility model discloses concrete work step:
as shown in fig. 3, the composite fiber material 2 is firstly attached to the outer wall of the male die 7, then the two half female dies 1 are folded, and then the mandrel 8 is inserted into the male die 7, so that the shaping of the male die 7 is ensured; a heating device 12 can be arranged on the outer side of the master model 1, and a cooling liquid hole 11 can be arranged in the master model 1; the setting of the composite fibre material 2 is achieved by heating and then rapid cooling is achieved by passing a cooling fluid through the cooling fluid holes 11.
As shown in fig. 4, after the mandrel 8 is inserted into the male die 7, the mandrel 8 is rotated to connect the threaded hole 13 at the front end of the mandrel 8 with the stud 14, so as to apply force to pull the stud 14 backwards, eliminate the fine deformation phenomenon caused by the influence of gravity on the top end of the male die 7, and further improve the uniformity of the wall thickness of the product.
As shown in fig. 7, after the mandrel 8 is inserted into the male die 7, the inner shaft 15 is rotated to connect the threaded hole 13 at the front end of the inner shaft 15 with the stud 14, so as to apply force to pull the stud 14 backwards, eliminate the fine deformation phenomenon caused by the influence of gravity on the top end of the male die 7, and further improve the uniformity of the wall thickness of the product.
As shown in fig. 9, when the forming device is used in an inverted state, the front end of the inner shaft 15 has no threaded hole, the inner shaft 15 is in threaded connection with the mandrel 8, and when the inner shaft 15 extends forwards, the inner shaft can prop against the stud 14 to apply an upward force to the top of the inverted male die, so that the fine deformation phenomenon caused by the influence of gravity on the male die is eliminated, and the wall thickness uniformity of a product is further improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Claims (7)
1. A thin-wall shell forming die device with a rigid plug-in solid male die comprises a female die (1) which is at least divided into two opposite parts, wherein a male die (7) is arranged in the female die (1); a cavity for forming the shell is formed between the outer wall of the male die (7) and the inner wall of the female die (1); the die is characterized in that the male die (7) is of a solid silica gel structure; a mandrel hole (17) which is used for inserting the mandrel (8) and is matched with the mandrel (8) in shape is formed in the male die (7); the port of the mandrel hole (17) is positioned at the tail end of the male die (7).
2. The thin-wall shell forming die device with the rigid insertion type solid male die as claimed in claim 1, wherein a stud (14) is fixedly arranged at the center of the bottom end of the mandrel hole (17); the front end of the mandrel (8) is provided with a threaded hole (13) matched with the stud (14); the tail end of the mandrel (8) is provided with a head (3); the outer diameter of the head (3) is larger than that of the mandrel (8).
3. The thin-walled shell forming die assembly with the rigid inserted solid male die as claimed in claim 2, wherein an inner shaft (15) is provided through the mandrel (8).
4. The thin-walled shell forming die assembly with the rigid insertion type solid male die as claimed in claim 3, wherein the inner shaft (15) is screwed with the mandrel (8).
5. The thin-wall shell forming die device with the rigid insertion type solid male die as claimed in claim 3, wherein the threaded hole (13) is arranged at the front end of the inner shaft (15); the tail end of the inner shaft (15) is provided with an end part (16); the end portion (16) has an outer diameter larger than the inner shaft (15).
6. The thin-walled shell forming die assembly with the rigid inserted solid male die as claimed in any one of claims 1 to 5, wherein a heating coil (10) is provided in the mandrel (8).
7. The thin-walled shell forming die device with the rigid inserted solid male die as claimed in claim 6, wherein the mandrel (8) is cylindrical or conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493185.2U CN210211429U (en) | 2019-04-12 | 2019-04-12 | Thin-wall shell forming die device with rigid plug-in type solid male die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493185.2U CN210211429U (en) | 2019-04-12 | 2019-04-12 | Thin-wall shell forming die device with rigid plug-in type solid male die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210211429U true CN210211429U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920493185.2U Active CN210211429U (en) | 2019-04-12 | 2019-04-12 | Thin-wall shell forming die device with rigid plug-in type solid male die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210211429U (en) |
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2019
- 2019-04-12 CN CN201920493185.2U patent/CN210211429U/en active Active
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