CN215661318U - Sealing structure adapting to thermal expansion of segmented mold - Google Patents
Sealing structure adapting to thermal expansion of segmented mold Download PDFInfo
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- CN215661318U CN215661318U CN202121586398.3U CN202121586398U CN215661318U CN 215661318 U CN215661318 U CN 215661318U CN 202121586398 U CN202121586398 U CN 202121586398U CN 215661318 U CN215661318 U CN 215661318U
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Abstract
The utility model relates to the technical field of segmented mold sealing, in particular to a sealing structure suitable for thermal expansion of a segmented mold, which comprises a first mold and a second mold, wherein the first mold and the second mold are connected through a fastener, the first mold and the second mold are oppositely provided with a first flange surface and a second flange surface, two end parts of the fastener respectively penetrate through the first flange surface and the second flange surface and are fixedly connected through locking nuts, a limiting part is arranged in the middle of the fastener, gaps are reserved between the limiting part and the first flange surface and between the limiting part and the second flange surface, an elastic sealing element is arranged between the first flange surface and the second flange surface, a backing plate is fixedly connected between laying areas of the first mold and the second mold and is positioned above the elastic sealing element, the existence of the gaps avoids unstable connection of the segmented mold due to thermal expansion, the air tightness of the connection position of the segmented mold is improved, and the setting of the backing plate effectively ensures the fracture controllability of the joint position between the two molds, further ensuring the molding effect of the composite material vehicle body.
Description
Technical Field
The utility model relates to the technical field of segmented mold sealing, in particular to a sealing structure suitable for thermal expansion of a segmented mold.
Background
The composite material car body is 25 meters in length, and is formed by adopting an integral metal mould, and the problems of long period, high cost, scarce equipment and the like are faced when the integral metal mould is processed, so that the composite material car body needs to be processed separately in a segmentation mode and assembled into a whole, and most of connection of the segmented mould is in rigid connection at present.
But the assembled segmented mold needs to be heated when the side wall is formed, and the heated mold can expand to a certain extent due to heating, so that the joint of the segmented mold is staggered and deformed, the connection is unstable, the air tightness of the joint cannot be guaranteed, and local thermal stress failure is easily caused, thereby affecting the forming effect of the composite material vehicle body.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the sealing structure is suitable for thermal expansion of the segmented mold, unstable connection caused by the thermal expansion is avoided, and the air tightness of the connecting part of the segmented mold is improved.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a seal structure of adaptation segmentation mould thermal energy, includes mould one and mould two, mould one with the mould two is connected through the fastener, mould one with the mould two is equipped with first flange face and second flange face relatively, the fastener both ends pass respectively first flange face with the second flange face passes through lock nut fixed connection, the fastener intermediate position is equipped with spacing portion, spacing portion with all leave the clearance between first flange face and the second flange face, first flange face with be equipped with elastic sealing element between the second flange face, mould one with fixedly connected with backing plate between the district is put in the shop of mould two, the backing plate is located the elastic sealing element top.
Further, the elastic sealing element is arranged along the cross section of the laying area and is positioned above the fixed point connecting line of the fastener.
Further, the elastic sealing element adopts an inflatable sealing rubber ring.
Furthermore, a gasket is arranged on the fastener and is arranged on the inner side of the locking nut.
Furthermore, a first groove and a second groove are formed in opposite side faces of the two laying areas, and the backing plate is embedded into the first groove and the second groove and fixedly connected with supporting faces of the first groove and the second groove through screws.
Further, the upper surface of the backing plate is flush with the laying areas on the first die and the second die.
Further, the backing plate is made of high-temperature resistant elastic materials.
Furthermore, one end of the laying area is provided with a limiting area, the limiting area is flush with the upper surface of the elastic sealing element, and the elastic sealing element is sealed and covered by a bag-making sealing rubber strip.
The utility model has the beneficial effects that: according to the utility model, the gap is reserved between the limiting part and the first flange surface and between the limiting part and the second flange surface, so that unstable connection of the segmented mold due to thermal expansion is avoided, the air tightness of the joint of the segmented mold is improved through the arrangement of the elastic sealing element, in addition, the base plates are arranged in the laying areas of the first mold and the second mold, so that the fracture controllability of the joint between the two molds is effectively ensured, the failure of local thermal stress is avoided, and the molding effect of the composite material vehicle body is further ensured.
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 an assembled view of a segmented mold seal configuration in an embodiment of the present invention;
FIG. 2 is an exploded view of a segmented mold seal configuration in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first mold according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second mold according to an embodiment of the present invention;
FIG. 5 is a schematic view of a sealing structure of a laydown area in an embodiment of the utility model;
FIG. 6 is a schematic view of a sealing structure of a confinement region in an embodiment of the utility model;
FIG. 7 is a schematic view of a fastener according to an embodiment of the utility model.
Reference numerals: 1. a first mould; 11. a laydown zone; 12. a limiting region; 13. a first flange face; 14. a first groove; 2. a second die; 21. a second flange face; 22. a second groove; 3. a fastener; 31. locking the nut; 32. a limiting part; 33. a gasket; 4. an elastomeric seal; 5. a base plate; 6. and (5) making a sealing rubber strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 7, the sealing structure adapted to thermal expansion of the segmented mold comprises a first mold 1 and a second mold 2, the first mold 1 is connected with the second mold 2 through a fastener 3, the first mold 1 and the second mold 2 are provided with a first flange surface 13 and a second flange surface 21 relatively, two ends of the fastener 3 respectively penetrate through the first flange surface 13 and the second flange surface 21 and are fixedly connected through a lock nut 31, a limiting portion 32 is arranged in the middle of the fastener 3, gaps are reserved between the limiting portion 32 and the first flange surface 13 and the second flange surface 21, an elastic sealing element 4 is arranged between the first flange surface 13 and the second flange surface 21, a backing plate 5 is fixedly connected between the laying areas 11 of the first mold 1 and the second mold 2, and the backing plate 5 is located above the elastic sealing element 4. Note that the gap refers to a thermal deformation amount of material expansion, and when the segmented mold is heated, the first flange surface 13 and the second flange surface 21 are attached to the limiting portion 32 under the influence of thermal expansion.
In the implementation process of the utility model, after the first die 1 and the second die 2 are processed in sections, the dies are connected through the fastener 3, the limiting part 32 on the fastener 3 is positioned between the two sections of dies, the elastic sealing element 4 is placed between the two sections of dies, the locking nut 31 is screwed into two ends of the fastener 3, the first flange surface 13 and the second flange surface 21 press the elastic sealing element 4, when the clearance between the first flange surface 13 and the second flange surface 21 and the limiting part 32 reaches a set distance, the locking nut 31 stops screwing, finally the backing plate 5 is fixed at the joint of the laying area 11 of the two sections of dies through screws, the connection of the sections of dies is completed, when the dies are heated, the dies are affected by thermal expansion, so that the first flange surface 13 and the second flange surface 21 are attached to the limiting part 32, the unstable connection of the sections of the dies caused by thermal expansion is avoided, and the connection of the sections of the dies is set through the elastic sealing element 4, the airtightness of the joint of the segmented molds is improved, and in addition, the base plate 5 is arranged in the laying area 11 of the first mold 1 and the second mold 2, so that the fracture controllability of the joint between the two molds is effectively ensured, the failure of local thermal stress is avoided, and the forming effect of the composite material vehicle body is further ensured.
In the preferred embodiment of the utility model, the elastic seal 4 is arranged along the cross section of the deposit area 11 and above the line of fixation of the fastener 3.
Preferably, the elastic sealing element 4 is an inflatable rubber sealing ring, so that the contact area of the rubber sealing ring with the first flange surface 13 and the second flange surface 21 is increased, the sealing effect is improved, and the air tightness of the joint of the two-section die is further improved.
In the preferred embodiment of the utility model, the fastening piece 3 is provided with the gasket 33, and the gasket 33 is arranged on the inner side of the locking nut 31, so that the locking force of the locking nut 31 is increased, and the connection reliability is improved.
In order to ensure the controllability of the deviation of the laying areas 11 of the first die 1 and the second die 2, the opposite side surfaces of the two laying areas 11 are provided with a first groove 14 and a second groove 22, and the backing plate 5 is embedded in the first groove 14 and the second groove 22 and fixedly connected with the supporting surfaces of the first groove 14 and the second groove 22 through screws.
On the basis of the above embodiment, the upper surface of the backing plate 5 is flush with the laying area 11 on the first die 1 and the second die 2, so that the forming effect of the laying area 11 is ensured.
Because the segmented mold is heated to generate thermal expansion, the backing plate 5 can be extruded by the molds at the two sides, and in order to ensure that the contour change of the backing plate 5 after being heated meets the molding requirement of the laying area 11, the backing plate 5 is made of high-temperature resistant elastic material, such as polyurethane or rubber or hard foam.
In the preferred embodiment of the utility model, one end of the laying area 11 is provided with a limiting area 12, the limiting area 12 is flush with the upper surface of the elastic sealing element 4, and is sealed and covered by the bag-making sealing rubber strip 6.
After the first die 1 and the second die 2 are processed in a subsection mode, the dies are connected through the fastener 3, the limiting part 32 on the fastener 3 is located between the two subsection dies, an inflatable sealing rubber ring is placed between the two subsection dies, the locking nut 31 is screwed into two end parts of the fastener 3, the first flange surface 13 and the second flange surface 21 press the inflatable sealing rubber ring, when the gap between the first flange surface 13 and the second flange surface 21 and the limiting part 32 reaches a set distance, the locking nut 31 stops screwing, finally the cushion plate 5 is fixed at the connection part of the two subsection die laying area 11 through screws, the limiting area 12 is covered on the inflatable sealing rubber ring in a sealing mode through the bag-making sealing rubber strip 6 in a sealing mode, the subsection dies are connected, then the sealing rubber ring is inflated, the sealing rubber ring is sealed with the dies on two sides through air pressure, the dies are enabled to be attached to the gasket 33 outwards in a tight mode, and when the dies are heated, the mould is influenced by thermal expansion, make first flange face 13 and second flange face 21 and spacing portion 32 laminating, avoided the segmentation mould because of the connection unstability that thermal expansion leads to, and set up through elastic sealing element 4, improved the gas tightness of segmentation mould junction, in addition, through laying district 11 and setting up backing plate 5 at mould one 1 and mould two 2, effectively guaranteed the disconnected poor controllability of laminating department between two moulds, avoided local thermal stress to lose efficacy, further guaranteed the shaping effect of combined material automobile body.
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 utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A sealing structure adapting to thermal expansion of a segmented mold comprises a first mold (1) and a second mold (2), and is characterized in that the first mold (1) and the second mold (2) are connected through a fastener (3), the first mold (1) and the second mold (2) are relatively provided with a first flange face (13) and a second flange face (21), two end portions of the fastener (3) respectively penetrate through the first flange face (13) and the second flange face (21) and are fixedly connected through a locking nut (31), a limiting portion (32) is arranged in the middle of the fastener (3), gaps are reserved between the limiting portion (32) and the first flange face (13) and the second flange face (21), an elastic sealing element (4) is arranged between the first flange face (13) and the second flange face (21), and a backing plate (5) is fixedly connected between a laying area (11) of the first mold (1) and the second mold (2), the backing plate (5) is located above the elastic sealing element (4).
2. A sealing structure to accommodate thermal expansion of segmented molds according to claim 1, wherein the elastic seal (4) is arranged along the cross section of the layup area (11) and above the line of fixing points of the fasteners (3).
3. A sealing structure for accommodating thermal expansion of segmented molds according to claim 2, wherein said elastic sealing member (4) is an inflatable sealing rubber ring.
4. The sealing structure for accommodating thermal expansion of segmented molds according to claim 1, wherein a washer (33) is provided on the fastener (3), and the washer (33) is provided inside the lock nut (31).
5. The sealing structure for accommodating the thermal expansion of the segmented mold according to claim 1, wherein a first groove (14) and a second groove (22) are formed on opposite sides of the two laying areas (11), and the backing plate (5) is embedded in the first groove (14) and the second groove (22) and fixedly connected with the supporting surfaces of the first groove (14) and the second groove (22) through screws.
6. A sealing structure to accommodate thermal expansion of segmented molds according to claim 5, wherein the upper surface of the shim plate (5) is flush with the layup area (11) on the first mold (1) and the second mold (2).
7. A sealing structure to accommodate thermal expansion of segmented molds according to claim 6, characterized in that said backing plate (5) is made of a high temperature resistant elastic material.
8. The sealing structure adapting to the thermal expansion of the segmented mold according to claim 1, wherein one end of the laying area (11) is provided with a limiting area (12), and the limiting area (12) is flush with the upper surface of the elastic sealing element (4) and is sealed and covered by a bag-making sealing rubber strip (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121586398.3U CN215661318U (en) | 2021-07-13 | 2021-07-13 | Sealing structure adapting to thermal expansion of segmented mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121586398.3U CN215661318U (en) | 2021-07-13 | 2021-07-13 | Sealing structure adapting to thermal expansion of segmented mold |
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| Publication Number | Publication Date |
|---|---|
| CN215661318U true CN215661318U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121586398.3U Active CN215661318U (en) | 2021-07-13 | 2021-07-13 | Sealing structure adapting to thermal expansion of segmented mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872346A (en) * | 2022-04-29 | 2022-08-09 | 常州市新创智能科技有限公司 | Frame type segmented hot-pressing preforming die |
-
2021
- 2021-07-13 CN CN202121586398.3U patent/CN215661318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872346A (en) * | 2022-04-29 | 2022-08-09 | 常州市新创智能科技有限公司 | Frame type segmented hot-pressing preforming die |
| CN114872346B (en) * | 2022-04-29 | 2023-03-10 | 常州市新创智能科技有限公司 | Frame type segmented hot-pressing preforming die |
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