CN202639082U - Combined mould for sizing outer diameters of welded steel tubes - Google Patents
Combined mould for sizing outer diameters of welded steel tubes Download PDFInfo
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- CN202639082U CN202639082U CN 201220271548 CN201220271548U CN202639082U CN 202639082 U CN202639082 U CN 202639082U CN 201220271548 CN201220271548 CN 201220271548 CN 201220271548 U CN201220271548 U CN 201220271548U CN 202639082 U CN202639082 U CN 202639082U
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Abstract
The utility model relates to the field of welded steel tube production equipment, in particular to a combined mould for sizing outer diameters of welded steel tubes. The combined mould comprises an upper mould and a lower mould and is characterized in that an upper mould core is fixed in the upper mould, and a lower mould core is fixed in the lower mould. The upper mould core comprises a plurality of layers of upper mould core bodies which are unequal in thickness, semicircular and fixed in a layered stack mode. The lower mould core comprises a plurality of layers of lower mould core bodies which are unequal in thickness, semicircular and fixed in a layered stack mode. The combined mould for sizing outer diameters of welded steel tubes is simple in structure and reasonable in design, mould cores of the upper and lower moulds are combined through the mould core bodies which are stacked layer by layer, the mould groove size can be changed by increasing or decreasing the number of the mould core bodies, the combined mould can be used for producing steel tubes with different sizes, the mould core bodies are convenient to mount and fix, the mould changing times are reduced, and the work amount of workers is reduced.
Description
Technical field:
The utility model relates to welded still pipe production equipment field, relates in particular to a kind of welded still pipe and decides the external diameter assembling die.
Background technology:
Welded still pipe also claims welded tube, is with steel plate or with welding the steel pipe of making behind the steel process cans.The welded still pipe production technology is simple, and production efficiency is high, and description is many, and equipment money is few, but common intensity is lower than seamless steel pipe.
Since the thirties in 20th century, along with developing rapidly and the progress of welding and inspection technology of quality strip steel rolling production, weldquality improves constantly, and the description of welded still pipe is increasing, and has replaced seamless steel pipe in increasing field.Welded still pipe is divided into ERW and spiral welded pipe by the form of weld seam.The intensity of spiral welded pipe is generally high than ERW, can produce the larger welded tube of caliber with narrower blank, can also produce the different welded tube of caliber with the blank of same width.But compare with the straight-seam pipes of equal length, fusion length increases by 30 ~ 100%, and speed of production is lower.The ERW production technology is simple, and production efficiency is high, and cost is low, and development is very fast.
The welded still pipe production process need to be decided external diameter with steel plate or with steel by mould through the steel pipe of cans.In the prior art, the mold radius of use is fixed, and the steel pipe of producing different size will use decides the external diameter mould accordingly, and die change is frequent, and workload is large, and the number of molds that needs is many, and the die sinking cost is large.
The utility model content:
Technical problem to be solved in the utility model is to overcome the defective of prior art, provides a kind of welded still pipe of die cavity size variable to decide the external diameter assembling die.
Technical problem to be solved in the utility model realizes by the following technical solutions.
A kind of welded still pipe is decided the external diameter assembling die, comprises upper die body and lower mold body, it is characterized in that: be fixed with upper mold core in the described upper die body, be fixed with lower mold core in the described lower mold body.
Described upper mold core comprises the multilayer patrix core body that thickness does not wait, and multilayer patrix core body successively superposes fixing.
Described patrix core body is semicircle.
Described lower mold core comprises the multilayer counterdie core body that thickness does not wait, and multilayer counterdie core body successively superposes fixing.
Described counterdie core body is semicircle.
The utility model is simple in structure, reasonable in design, the core rod of upper/lower die combines by the core rod body that is layering, quantity by increase and decrease core rod body can change the die cavity size, can be used for producing the steel pipe of different size, the core rod body is installed convenient fixing, reduce the die change number of times, reduced workman's workload.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of welded still pipe is decided the external diameter assembling die, comprise upper die body 1 and lower mold body 4, be fixed with upper mold core 2 in the upper die body 1, be fixed with lower mold core 3 in the lower mold body 4, upper mold core 2 comprises the multilayer patrix core body 21 that thickness does not wait, multilayer patrix core body 21 successively superposes fixing, and patrix core body 21 is semicircle, and lower mold core 3 comprises the multilayer counterdie core body 31 that thickness does not wait, multilayer counterdie core body 31 successively superposes fixing, and counterdie core body 31 is semicircle.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a welded still pipe is decided the external diameter assembling die, comprises upper die body and lower mold body, it is characterized in that: be fixed with upper mold core in the described upper die body, be fixed with lower mold core in the described lower mold body.
2. welded still pipe according to claim 1 is decided the external diameter assembling die, it is characterized in that: described upper mold core comprises the multilayer patrix core body that thickness does not wait, and multilayer patrix core body successively superposes fixing.
3. welded still pipe according to claim 2 is decided the external diameter assembling die, it is characterized in that: described patrix core body is for semicircle.
4. welded still pipe according to claim 1 is decided the external diameter assembling die, it is characterized in that: described lower mold core comprises the multilayer counterdie core body that thickness does not wait, and multilayer counterdie core body successively superposes fixing.
5. welded still pipe according to claim 4 is decided the external diameter assembling die, it is characterized in that: described counterdie core body is for semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271548 CN202639082U (en) | 2012-06-11 | 2012-06-11 | Combined mould for sizing outer diameters of welded steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271548 CN202639082U (en) | 2012-06-11 | 2012-06-11 | Combined mould for sizing outer diameters of welded steel tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639082U true CN202639082U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271548 Expired - Fee Related CN202639082U (en) | 2012-06-11 | 2012-06-11 | Combined mould for sizing outer diameters of welded steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639082U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699205A (en) * | 2012-06-11 | 2012-10-03 | 安徽祥宇钢业集团有限公司 | Fixed outer diameter combined die for welded steel tubes |
| CN104942139A (en) * | 2015-06-08 | 2015-09-30 | 浙江大大不锈钢有限公司 | Steel tube shaping mold |
| CN105881965A (en) * | 2016-06-28 | 2016-08-24 | 贵州大学 | Briquette coal mold capable of improving product rate of coal sample |
| CN105881964A (en) * | 2016-06-28 | 2016-08-24 | 贵州大学 | Multi-size briquette die |
| CN107999635A (en) * | 2018-01-22 | 2018-05-08 | 吉林大学 | The wrinkle resistant finishing die of spherical part and application |
| CN113351811A (en) * | 2021-05-12 | 2021-09-07 | 苏州市东盛锻造有限公司 | Annular forging processing method based on numerical control automatic hydraulic ring rolling mill |
-
2012
- 2012-06-11 CN CN 201220271548 patent/CN202639082U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699205A (en) * | 2012-06-11 | 2012-10-03 | 安徽祥宇钢业集团有限公司 | Fixed outer diameter combined die for welded steel tubes |
| CN104942139A (en) * | 2015-06-08 | 2015-09-30 | 浙江大大不锈钢有限公司 | Steel tube shaping mold |
| CN105881965A (en) * | 2016-06-28 | 2016-08-24 | 贵州大学 | Briquette coal mold capable of improving product rate of coal sample |
| CN105881964A (en) * | 2016-06-28 | 2016-08-24 | 贵州大学 | Multi-size briquette die |
| CN107999635A (en) * | 2018-01-22 | 2018-05-08 | 吉林大学 | The wrinkle resistant finishing die of spherical part and application |
| CN113351811A (en) * | 2021-05-12 | 2021-09-07 | 苏州市东盛锻造有限公司 | Annular forging processing method based on numerical control automatic hydraulic ring rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130611 |