CN203972506U - A kind of Tube Drawing mould - Google Patents
A kind of Tube Drawing mould Download PDFInfo
- Publication number
- CN203972506U CN203972506U CN201420442443.1U CN201420442443U CN203972506U CN 203972506 U CN203972506 U CN 203972506U CN 201420442443 U CN201420442443 U CN 201420442443U CN 203972506 U CN203972506 U CN 203972506U
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- CN
- China
- Prior art keywords
- band
- reducing
- mold
- internal mold
- sizing
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- Expired - Fee Related
Links
- 238000004513 sizing Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000010622 cold drawing Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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- Metal Extraction Processes (AREA)
Abstract
The utility model proposes a kind of Tube Drawing mould, comprise internal mold and external mold; Described external mold is arranged on drawbench by the outer model fixing seat of drawbench, and the front end of external mold endoporus is taper hole reducing band, and the rear end of external mold endoporus is circular hole setting band; Described internal mold is inserted in the hole of external mold and comprises the reducing sizing band that many groups are corresponding, and internal mold is connected with drawbench pull bar holder by rod assembly; Treat that throwing material passes through from the gap between internal mold and external mold; It is characterized in that: described rod assembly comprises that connection wire rod and end fix with bolt and both screw threads of hold-doun nut, the reducing sizing band of described internal mold comprises the reducing band and sizing band that split arranges, and described many groups reducing sizing is fixedly connected with bolt thread with sizing band successively with its corresponding reducing band.The utility model object is to provide a kind of Tube Drawing mould, and object is to solve in prior art because rod assembly causes both to coordinate the problem of inefficacy with the Lack of support that coordinates of internal mold.
Description
Technical field
The utility model relates to a kind of steel pipe cold field, relates in particular to the profit cold drawing die of this drawbench.
Background technology
In cold-drawing seamless tube technique, to subtracting wall hole enlargement being divided into of steel pipe and subtracting the processing of wall tube reducing, the main distinction of two kinds of processing is to subtract the processing mode of wall hole enlargement, is subtracting wall hole enlargement, the larger resistance of deformation that internal mold bears in subtracting the process of wall, on the contrary be external mold.The wall that subtracts wall in the utility model refers to outer diameter of steel pipes size, the footpath indication of hole enlargement be the internal diameter size of steel pipe.
The utility model is mainly carrying out for subtract wall hole enlargement in the situation that, cold drawing die is included as a conical internal mold and a taper external mold, between conical internal mold outer wall and taper external mold inwall, form the processing that reducing sizing band corresponding to many groups is used for steel pipe to subtract wall, hole enlargement, in Tube Drawing process, conical internal mold need to fix operating position by a rod assembly, and it is remained in reducing sizing band.Wherein rod assembly comprises pull bar and nut gasket component, internal mold of the prior art is in the process of drawing processing, it mainly coordinates with nut gasket component, the pulling capacity producing for carrying the process of drawing processing, because high-carbon-chromium bearing steel steel pipe is large in drawing deformation process resistance of deformation, while using the drawing of plain cylindrical form internal mold, draw percentage elongation is a bit larger tham will produce steel pipe fracture, mating surface due to nut gasket component and internal mold is mainly its end face simultaneously, be between its nut gasket component corresponding with end face, to need to bear higher bearing capacity, being used for the fixedly nut gasket component of internal mold is easily damaged, be unfavorable for the smooth cold-drawn of steel pipe, in carrying out the process of cold-drawn, its wearing and tearing of Zona transformans in reducing sizing band are very fast simultaneously.
Utility model content
The utility model object is to provide a kind of Tube Drawing mould, and object is to solve in prior art because rod assembly causes both to coordinate the problem of inefficacy with the Lack of support that coordinates of internal mold.
For above problem, provide following technical scheme: a kind of Tube Drawing mould, comprises internal mold and external mold; Described external mold is arranged on drawbench by the outer model fixing seat of drawbench, and the front end of external mold endoporus is taper hole reducing band, and the rear end of external mold endoporus is circular hole setting band; Described internal mold is inserted in the hole of external mold and comprises the reducing sizing band that many groups are corresponding, and internal mold is connected with drawbench pull bar holder by rod assembly; Treat that throwing material passes through from the gap between internal mold and external mold; It is characterized in that: described rod assembly comprises that connection wire rod and end fix with bolt and both screw threads of hold-doun nut, the reducing sizing band of described internal mold comprises the reducing band and sizing band that split arranges, and described many groups reducing sizing is fixedly connected with bolt thread with sizing band successively with its corresponding reducing band.
The utility model is also further set to, and on described bolt, the end corresponding with connection wire rod is provided for fixing the hold-down nut of its reducing band.
The utility model is also further set to, and between described nut and corresponding sizing band, setting-up piece is set.
Adopt above structure, the internal mold with certain axial length has more mating surface with corresponding rod assembly, higher axial bearing capacity can be distributed on the bolt of the rod assembly coordinating with internal mold uniformly, be convenient to the rolling of steel pipe, the object of internal mold split setting is simultaneously, in the process of cold-drawn, the rate of wear of reducing band is greater than sizing band, and split setting can realize the replacement to reducing band; The setting of setting-up piece is that the nut for fitted bolt end is fixed whole internal mold; The setting of setting-up piece makes the end face of internal mold there will not be wearing and tearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Number in the figure implication: 1-steel pipe; 2-rod assembly; 21-connection wire rod; 22-bolt; 221-nut; 3-internal mold; 31-nut; 32-the first reducing band; 32-the first sizing band; 34-the second reducing band; 35-the second sizing band; 36-setting-up piece; 4-external mold.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of Tube Drawing mould, is comprised of internal mold 3 and external mold 4, described external mold 4 is arranged on drawbench by drawbench external mold 4 holders, and the front end of external mold 4 endoporus is taper hole reducing band, and the rear end of external mold 4 endoporus is circular hole setting band, described internal mold 3 is inserted in the hole of external mold 4 and comprises the reducing sizing band that many groups are corresponding, is set to two groups in the present embodiment, and internal mold 3 is connected with drawbench pull bar 21 holders by rod assembly 2, treat that throwing material is that steel pipe 1 passes through from the gap between internal mold 3 and external mold 4, rod assembly 2 comprises that connection wire rod 21 and end fix with bolt 22 and both screw threads of hold-doun nut 221, the reducing sizing band of described internal mold 3 comprises the reducing band and sizing band that split arranges, on bolt 22, along cold-drawn direction, set gradually the first reducing band 32, the first sizing is with 33, the second reducing band 34 and the second sizing are with 35, the first above-mentioned reducing band 32, the first sizing is with 33, the second reducing band 34 and the second sizing are with 35 to be fixedly connected with bolt 22 screw threads successively, and on bolt 22, the end corresponding with connection wire rod 21 is provided for fixing the hold-down nut 31 of its reducing band, nut 221 arranges setting-up piece 36 between being with 35 with corresponding the second sizing.
In carrying out the process of cold-drawn, the internal mold 3 with certain axial length has more mating surface with corresponding rod assembly 2, higher axial bearing capacity can be distributed in uniformly on the bolt 22 of the rod assembly 2 coordinating with internal mold 3, be convenient to the rolling of steel pipe 1, and the situation that there will not be nut 221 to break, the object of internal mold 3 split settings is simultaneously, in the process of cold-drawn, the rate of wear of reducing band is greater than sizing band, and split setting can realize the replacing to reducing band; The setting of setting-up piece 36 is that the 221 pairs of whole internal molds 3 of nut for fitted bolt 22 ends are fixed; The setting of setting-up piece 36 makes the end face of internal mold 3 there will not be wearing and tearing.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these of above-mentioned hypothesis improve and modification also should be considered as protection domain of the present utility model.
Claims (3)
1. a Tube Drawing mould, comprises internal mold and external mold; Described external mold is arranged on drawbench by the outer model fixing seat of drawbench, and the front end of external mold endoporus is taper hole reducing band, and the rear end of external mold endoporus is circular hole setting band; Described internal mold is inserted in the hole of external mold and comprises the reducing sizing band that many groups are corresponding, and internal mold is connected with drawbench pull bar holder by rod assembly; Treat that throwing material passes through from the gap between internal mold and external mold; It is characterized in that: described rod assembly comprises that connection wire rod and end fix with bolt and both screw threads of hold-doun nut, the reducing sizing band of described internal mold comprises the reducing band and sizing band that split arranges, and described many groups reducing sizing is fixedly connected with bolt thread with sizing band successively with its corresponding reducing band.
2. a kind of Tube Drawing mould according to claim 1, is characterized in that: on described bolt, the end corresponding with connection wire rod is provided for fixing the hold-down nut of its reducing band.
3. a kind of Tube Drawing mould according to claim 1 and 2, is characterized in that: between described nut and corresponding sizing band, setting-up piece is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442443.1U CN203972506U (en) | 2014-08-04 | 2014-08-04 | A kind of Tube Drawing mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442443.1U CN203972506U (en) | 2014-08-04 | 2014-08-04 | A kind of Tube Drawing mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972506U true CN203972506U (en) | 2014-12-03 |
Family
ID=51969991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442443.1U Expired - Fee Related CN203972506U (en) | 2014-08-04 | 2014-08-04 | A kind of Tube Drawing mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203972506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048230A (en) * | 2018-09-14 | 2018-12-21 | 徐州徐工液压件有限公司 | A kind of the cold-drawn pipe and cold-drawing technology of buffering high-strength steel cold-drawn impact |
| CN109675945A (en) * | 2018-12-28 | 2019-04-26 | 张家港华程特种材料股份有限公司 | Tube-drawing molding machine |
| CN113319139A (en) * | 2021-06-23 | 2021-08-31 | 沈阳理工大学 | Integral core print tubular product single pass continuous drawing device |
-
2014
- 2014-08-04 CN CN201420442443.1U patent/CN203972506U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048230A (en) * | 2018-09-14 | 2018-12-21 | 徐州徐工液压件有限公司 | A kind of the cold-drawn pipe and cold-drawing technology of buffering high-strength steel cold-drawn impact |
| CN109048230B (en) * | 2018-09-14 | 2024-10-01 | 徐州徐工液压件有限公司 | Cold drawn tube blank for buffering cold drawing impact of high-strength steel and cold drawing process |
| CN109675945A (en) * | 2018-12-28 | 2019-04-26 | 张家港华程特种材料股份有限公司 | Tube-drawing molding machine |
| CN113319139A (en) * | 2021-06-23 | 2021-08-31 | 沈阳理工大学 | Integral core print tubular product single pass continuous drawing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |