CN211386487U - Seamless large-diameter metal expansion joint forming combined die - Google Patents
Seamless large-diameter metal expansion joint forming combined die Download PDFInfo
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- CN211386487U CN211386487U CN201922424462.7U CN201922424462U CN211386487U CN 211386487 U CN211386487 U CN 211386487U CN 201922424462 U CN201922424462 U CN 201922424462U CN 211386487 U CN211386487 U CN 211386487U
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- expansion joint
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Abstract
A seamless large-caliber metal expansion joint forming combined die is characterized by comprising an upper die bottom plate (7) and a lower die bottom plate (8), wherein the upper die bottom plate (7) can be provided with a corresponding number of inner-petal upper dies (2) according to the wave number of expansion joints to be formed, the lower die bottom plate (8) is provided with a corresponding number of inner-petal lower dies (2), and two ends of the inner-petal lower dies (2) and the upper die bottom plate (8) are respectively provided with an outer petal (3); the inner petal upper die (2) is provided with a groove matched with the expansion joint in a wave shape, and the outer petal (3) is provided with an opening for pressure medium to enter; two sides of the inner petal lower die (2) are respectively provided with a guide post (6), and the inner petal upper die (1) is provided with a matched guide hole. The utility model discloses simple structure, equipment convenient to use. A pair of dies can be used for forming expansion joints with different wave numbers.
Description
Technical Field
The utility model relates to a forming die, especially an expansion joint forming die, specifically speaking are seamless heavy-calibre metal expansion joint shaping assembling die that can use according to the arbitrary combination of expansion joint number.
Background
At present, the metal expansion joint forming die is processed according to the wave number of the expansion joint, which is time-consuming and labor-consuming. The final forming die takes up a lot of space. The method causes a large amount of capital occupation, increases the warehousing cost, causes resource waste and has poor universality, so improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at that the commonality is poor to metal expansion joint forming die, and the expansion joint of a wave number just will design a pair mould, causes to take up an area of and the problem of extravagant cost again, and it is good to design a commonality, can increase the seamless heavy-calibre metal expansion joint forming assembling die of regulation wantonly according to the wave number of expansion joint.
The technical scheme of the utility model is that:
a seamless large-diameter metal expansion joint forming combined die is characterized by comprising an upper die bottom plate 7 and a lower die bottom plate 8, wherein the upper die bottom plate 7 can be provided with a corresponding number of inner-petal upper dies 2 according to the wave number of expansion joints to be formed, the lower die bottom plate 8 is provided with a corresponding number of inner-petal lower dies 2, and two ends of the inner-petal lower dies 2 and the lower die bottom plate 8 are respectively provided with an outer petal 3; the inner petal upper die 2 is provided with a groove matched with the expansion joint in a wave shape, and the outer petal 3 is provided with an opening for pressure medium to enter; two sides of the inner petal lower die 2 are respectively provided with a guide post 6, and the inner petal upper die 1 is provided with a matched guide hole.
The guide post 6 is of a square column structure or a double-cylinder structure.
And a guide rail 5 for moving the inner petal lower die 2 is arranged on the lower die bottom plate 8.
The utility model has the advantages that:
the utility model discloses can increase detachable unit according to the wave number of expansion joint, both reduce cost also can practice thrift processing material.
The utility model discloses can take the combination formula to dismantle the mould to bulky shaping part and carry out the shaping.
The utility model discloses simple structure, equipment convenient to use. A pair of dies can be used for forming expansion joints with different wave numbers. A large amount of manufacturing and warehousing costs can be saved.
Drawings
Fig. 1 is a schematic view of a basic structure of a molding die of the present invention.
Fig. 2 is a schematic view of the present invention.
Fig. 3 is a schematic view of the formed expansion joint of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-3.
A seamless large-caliber metal expansion joint forming combined die comprises an upper die base plate 7 and a lower die base plate 8, wherein the sizes of the upper die base plate 7 and the lower die base plate 8 can be designed according to the size of the longest expansion joint so as to ensure that a pair of dies can meet the forming requirements of all expansion with the same specification and different section numbers, the upper die base plate 7 is provided with a plurality of inner-petal upper dies 2, the lower die base plate 8 is provided with a corresponding number of inner-petal lower dies 2, as shown in figure 1, the upper and lower parts are respectively provided with an inner-petal upper die 1 and an inner-petal lower die 2 which are basically a unit, and the lower die base plate 8 and two ends of the inner-petal lower dies 2 are respectively provided with an outer petal; the inner petal upper die 2 is provided with a groove matched with the expansion joint in a wave shape, and the outer petal 3 is provided with an opening for pressure medium to enter; two sides of the inner petal lower die 2 are respectively provided with a guide post 6 with a square column structure (figure 1) or a double-cylinder structure (figure 2), and the inner petal upper die 1 is provided with a matched guide hole. In order to facilitate the movement of the inner lower mold half 2 and the outer mold half 3 on the lower mold bottom plate 8, a guide rail 5 for moving and positioning the lower mold bottom plate 8 is installed on the lower mold bottom plate, and corresponding guide grooves are installed at the bottoms of the inner lower mold half 2 and the outer mold half 3.
The utility model discloses a use method is:
and (3) forming: the die is assembled according to the figure 1, a cylindrical raw material seamless tube 4 is placed into the die, the forming equipment is started, the upper die base plate 7 drives the inner petal upper die 1 to press down to compress the raw material seamless tube 4, pressure media are squeezed into the seamless tube 4 from the round hole of the outer petal 3, and the 1 st wave and the 2 nd wave of the expansion joint part can be cold-pressed.
If more than 2 wave numbers need to be extruded, the die can be assembled according to the figure 2, the expansion joints with the needed wave numbers can be extruded by installing corresponding number of the inner petal upper dies 1 and the inner petal lower dies 2 on the upper die base plate and the lower die base plate, and 4 waves can be extruded at one time by adopting three groups of the inner petal upper dies 1 and the inner petal lower dies 2 and one group of two outer petals 3 in the figure 2. According to the utility model discloses an expansion joint product of 16 ~ 20 ripples at most can be extruded out to the mould cold. Fig. 3 is a schematic view of a four-wave expansion joint extruded using the composite die shown in fig. 2.
The utility model discloses do not relate to the part like expansion joint extrusion equipment and with the mould be connected etc. all the same with prior art or can adopt prior art to realize.
Claims (3)
1. A seamless large-caliber metal expansion joint forming combined die is characterized by comprising an upper die bottom plate (7) and a lower die bottom plate (8), wherein the upper die bottom plate (7) can be provided with inner petal upper dies (1) in corresponding quantity according to the wave number of expansion joints to be formed, the lower die bottom plate (8) is provided with inner petal lower dies (2) in corresponding quantity, and two ends of the inner petal lower dies (2) and the upper die bottom plate (8) are respectively provided with an outer petal (3); the inner petal upper die (1) is provided with a groove matched with the expansion joint in a wave shape, and the outer petal (3) is provided with an opening for pressure medium to enter; two sides of the inner petal lower die (2) are respectively provided with a guide post (6), and the inner petal upper die (1) is provided with a matched guide hole.
2. The seamless large-caliber metal expansion joint forming combined die as claimed in claim 1, wherein the guide pillar (6) is of a square column structure or a double-cylinder structure.
3. The seamless large-caliber metal expansion joint forming combined die as claimed in claim 1, wherein the lower die bottom plate (8) is provided with a guide rail (5) for moving the inner die lower die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424462.7U CN211386487U (en) | 2019-12-30 | 2019-12-30 | Seamless large-diameter metal expansion joint forming combined die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424462.7U CN211386487U (en) | 2019-12-30 | 2019-12-30 | Seamless large-diameter metal expansion joint forming combined die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211386487U true CN211386487U (en) | 2020-09-01 |
Family
ID=72226393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922424462.7U Active CN211386487U (en) | 2019-12-30 | 2019-12-30 | Seamless large-diameter metal expansion joint forming combined die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211386487U (en) |
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2019
- 2019-12-30 CN CN201922424462.7U patent/CN211386487U/en active Active
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