CN102615121A - Floating core rod compound die tube drawing device - Google Patents
Floating core rod compound die tube drawing device Download PDFInfo
- Publication number
- CN102615121A CN102615121A CN2012101023995A CN201210102399A CN102615121A CN 102615121 A CN102615121 A CN 102615121A CN 2012101023995 A CN2012101023995 A CN 2012101023995A CN 201210102399 A CN201210102399 A CN 201210102399A CN 102615121 A CN102615121 A CN 102615121A
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- core rod
- compound die
- floating core
- seamless steel
- reducing sizing
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Abstract
The invention relates to a floating core rod compound die tube drawing device which mainly comprises a drawing machine seat, a drawing machine, a compound die, a floating core rod, a to-be-drawn seamless steel pipe, a large-size reducing sizing girdle band and a small-size reducing sizing girdle band. The floating core rod compound die tube drawing device is characterized in that the compound die is embedded and fixed on the drawing machine seat; the to-be-drawn-waiting seamless steel pipe is placed in an inner hole of the compound die; the floating core rod is placed in an inner hole of the to-be-drawn seamless steel pipe; the floating core rod is conveyed to a position of the small-size reducing sizing girdle band of the inner hole of the compound die by a push rod of the floating core rod; the push rod of the floating core rod returns for resetting; and the floating core rod is always kept at the position of the small-size reducing sizing girdle band of the inner hole of the compound die by frictional force generated by contact between the outer surface of the floating core rod and the inner surface of the to-be-drawn seamless steel pipe in the drawing process.
Description
Affiliated technical field
The present invention relates to a kind of floating core rod compound die pipe drawing device, belong to metal rolled technical field.
Background technology
Seamless steel tube production cold-drawn device adopts short plug single mode pipe drawing device mostly at present; Short plug single mode tube drawing needs the multi-pass tube drawing just can obtain the qualified production tube of size; Production cycle is long, and energy resource consumption is big, and production cost is high; And in process of tube plug drawing mill,, influence steel tube surface quality because of the pull bar shake produces jutter at steel pipe internal-surface.
Summary of the invention
In order to solve the above-mentioned drawback of short plug single mode pipe drawing device, the present invention provides a kind of floating core rod compound die pipe drawing device, and it is with short production cycle to adopt the shorter plug single mode of this device tube drawing; Energy resource consumption is little; Production cost is low, and production efficiency is high, and steel tube surface quality is good.
The technical solution adopted for the present invention to solve the technical problems is: on the drawing support, inlay fixedly compound die; Floating core rod is placed on to be treated in the drawing seamless steel tubes endoporus; Treat that drawing seamless steel tubes is placed in the compound die endoporus; The operating position of floating core rod is at the small size tube reducing sizing endless belt position of compound die endoporus; The course of work is: the small size tube reducing sizing endless belt position of floating core rod being delivered to the compound die endoporus through the floating core rod push rod; Then the floating core rod push rod is return and is resetted, and contacts between the outer surface that in process of tube plug drawing mill, leans on floating core rod and the seamless steel pipe inner surface of treating drawing and the frictional force that produces makes floating core rod in process of tube plug drawing mill, remain at the small size tube reducing sizing endless belt position of compound die endoporus.The concrete structure of compound die is: keep traditional single withdrawing pattern thickness constant, its effect is the crop loss that does not increase in the steel pipe drawing process; The withdrawing pattern inner hole structure re-designs; Design and produce the large scale tube reducing sizing endless belt and the small size tube reducing sizing endless belt of two groups of descending arrangements of diameter dimension side by side at the axis direction of compound die endoporus; During the drawing operation; Treat that drawing seamless steel tubes at first carries out the tube reducing sizing first time through large scale tube reducing sizing endless belt, then carries out the tube reducing sizing second time through small size tube reducing sizing endless belt again;
The invention has the beneficial effects as follows: adopting the tube drawing of two passages of the original single mode of compound moding is the tube drawing of a passage of present compound die, has shortened the production cycle, has practiced thrift the energy, has improved production efficiency; Adopt the floating core rod tube drawing to eliminate the jutter that traditional pull bar plug tube drawing produces at steel pipe internal-surface because of the pull bar shake, and draw power reduce deflection increase, production efficiency raising.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is an operation principle sketch map of the present invention.
Fig. 2 is the front view of compound die of the present invention.
Fig. 3 is the left view of compound die of the present invention.
Fig. 4 is the A-A profile of compound die of the present invention.
1. floating core rod push rods are 2. treated drawing seamless steel tubes among the figure, 3. drawing support, 4. compound die, 5. puller gripper, 6. drawbench, 7. floating core rod, 8. large scale tube reducing sizing endless belt, 9. small size tube reducing sizing endless belt.
The specific embodiment
In Fig. 1, Fig. 2, Fig. 3, Fig. 4; Compound die 4 is inlayed and is fixed on the drawing support 3; Treat to be clamped by the puller gripper on the drawbench 65 after drawing seamless steel tubes 2 its ends of taking the lead pass compound die 4 endoporus; Then floating core rod 7 gets into small size tube reducing sizing endless belt 9 positions of compound die 4 endoporus along the inwall of treating drawing seamless steel tubes 2 under the thrust of floating core rod push rod 1; Treat that then drawing seamless steel tubes 2 moves ahead under the action of traction of drawbench 6 through puller gripper 5; Under the acting in conjunction of compound die 4 endoporus and floating core rod 7, treat that drawing seamless steel tubes 2 at first through the large scale tube reducing sizing endless belt 8 tube reducing sizings of compound die 4 endoporus, then passes through the small size tube reducing sizing endless belt 9 further tube reducing sizings of compound die 4 endoporus again; In the process of above-mentioned tube reducing and sizing; The inwall of treating drawing seamless steel tubes 2 contacts with the outer wall of floating core rod 7 and produces frictional force and make floating core rod 7 in process of tube plug drawing mill, remain at small size tube reducing sizing endless belt 9 positions of compound die 4 endoporus, and then floating core rod push rod 1 is return and resetted, and treats that drawing seamless steel tubes 2 is at the acting in conjunction of compound die 4 and floating core rod 7 enforcement tube reducing and sizing down.The concrete structure of compound die 4 is: keep traditional single withdrawing pattern thickness constant, its effect is the crop loss that does not increase in the steel pipe drawing process; The withdrawing pattern inner hole structure re-designs; Design and produce the large scale tube reducing sizing endless belt 8 and small size tube reducing sizing endless belt 9 of two groups of descending arrangements of diameter dimension side by side at the axis direction of compound die 4 endoporus; During the drawing operation; Treat that drawing seamless steel tubes 2 at first carries out the tube reducing sizing first time through large scale tube reducing sizing endless belt 8, then carries out the tube reducing sizing second time through small size tube reducing sizing endless belt 9 again.
Claims (2)
1. floating core rod compound die pipe drawing device, mainly by drawing support, compound die, floating core rod, treat that drawing seamless steel tubes, small size tube reducing sizing endless belt form, it is characterized in that: on the drawing support, inlay fixedly compound die.
2. floating core rod compound die pipe drawing device according to claim 1; It is characterized in that: floating core rod is placed on to be treated in the drawing seamless steel tubes endoporus; Treat that drawing seamless steel tubes is placed in the compound die endoporus, the operating position of floating core rod is at the small size tube reducing sizing endless belt position of compound die endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101023995A CN102615121A (en) | 2012-03-28 | 2012-03-28 | Floating core rod compound die tube drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101023995A CN102615121A (en) | 2012-03-28 | 2012-03-28 | Floating core rod compound die tube drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102615121A true CN102615121A (en) | 2012-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101023995A Pending CN102615121A (en) | 2012-03-28 | 2012-03-28 | Floating core rod compound die tube drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102615121A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269977A (en) * | 2016-08-07 | 2017-01-04 | 嘉兴市杰希希管道工程有限公司 | A kind of small-bore stainless steel tube drawing production process |
-
2012
- 2012-03-28 CN CN2012101023995A patent/CN102615121A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269977A (en) * | 2016-08-07 | 2017-01-04 | 嘉兴市杰希希管道工程有限公司 | A kind of small-bore stainless steel tube drawing production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |