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Perforating and extending integrated machine

An all-in-one machine and main rolling mill technology, applied in metal rolling, manufacturing tools, mandrels, etc., can solve problems such as low production rhythm, increased investment costs and energy consumption

Inactive Publication Date: 2012-02-08
YANGZHOU LONTRIN STEEL TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of large-diameter steel pipe production, the production rhythm is not high, and multiple sets of equipment are running at the same time, which increases investment costs and energy consumption

Method used

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  • Perforating and extending integrated machine
  • Perforating and extending integrated machine

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Experimental program
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Embodiment Construction

[0010] As shown in the figure, the piercing and extending integrated machine of the present invention is mainly composed of: feeding section 1, main rolling mill 2, centering frame group 3, main drive 4, lubricating device 5, ejector rod (mandrel) replacement device 6, ejector rod (mandrel) trolley driving mechanism 7, mandrel (mandrel) trolley 8, locking and stop mechanism 9, steel pipe pull-out mechanism 10, steel pipe return roller table 11 and steel pipe return crane 12. Steel pipe pulls out mechanism 10, steel pipe return roller table 11 and steel pipe return crane 12 to form steel pipe return mechanism. The solid circular tube enters the main rolling mill 2 through the feeding section 1 to complete a piercing. The feeding section 1 can be composed of a steel pusher. After the first piercing, the ejector rod for the first piercing returns with the ejector rod (mandrel) trolley driving mechanism 7, the steel pipe is turned out from the centering frame group 3, and is trans...

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PUM

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Abstract

The invention relates to a perforating and extending integrated machine, which comprises a feed section, a main rolling mill, a centering frame, a mandril (mandrel bar) trolley, a mandril (mandrel bar) trolley driving mechanism, a steel pipe returning mechanism and a mandrel bar replacing mechanism, wherein the steel pipe returning mechanism can be used for returning a steel pipe which is subjected to primary perforation into the feed section; the mandrel bar replacing mechanism is used for replacing a mandrel bar for extending; and thus, the extending of the steel pipe can be realized.

Description

technical field [0001] The invention relates to seamless steel pipe production equipment, especially in the field of large-diameter seamless steel pipe production. Background technique [0002] At present, the commonly used seamless steel pipe piercing machine is mainly composed of: feeding section, main rolling mill, centering frame group, ejector trolley, ejector trolley driving mechanism and ejector trolley guide rail, etc. Processing hollow steel pipe function. If the size and precision of the steel pipe are to be increased, an extension unit must be built additionally. In the field of large-diameter steel pipe production, the production rhythm is not high, and multiple sets of equipment are running at the same time, which increases investment costs and energy consumption. Contents of the invention [0003] The perforating and extending integrated machine of the present invention can not only complete the one-time perforating processing of the seamless steel pipe, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B19/04B21B39/02B21B25/06
Inventor 尤凤志吴世康
Owner YANGZHOU LONTRIN STEEL TUBE