A pre-rolling clamping device

By designing a lifting and transmission mechanism, a clamping mechanism, and guiding components at the front end of the hot rolling mill, the problem of swaying caused by unstable clamping was solved, thus improving the stability and quality of the rolling process.

CN224508042UActive Publication Date: 2026-07-17ZHEJIANG MINGHE STEEL PIPE CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MINGHE STEEL PIPE CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The front clamping device of the hot rolling mill is not clamping tightly enough, resulting in poor straightness of the inner and outer surfaces. This causes severe shaking during the rolling process, leading to surface defects and frequent shaking failures. The adjustment time is long, and the product quality and cost are high.

Method used

Design a pre-rolling clamping device, including a lifting and transmission mechanism, a clamping mechanism, and a guiding component. By designing the lifting and transmission mechanism and the guiding component to be on the same horizontal line, the number of clamping mechanisms is increased, the transmission distance is shortened, and the guide outlet length is extended. The clamping arm and rotating roller are hydraulically driven to ensure the stability of the strip tube during the rolling process.

Benefits of technology

It improves rolling efficiency, reduces adjustment time, stabilizes the quality of inner and outer surfaces, avoids capillary swaying, and significantly improves production efficiency and product quality.

โœฆ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of pre-rolling holding devices, it is related to the technical field of tube rolling, including pipe mill, the pipe mill further includes bite entry and guide exit, the side of the guide exit is provided with guide component, the side of the pipe mill away from the guide component is provided with several lifting transmission mechanisms, at least two holding mechanisms are provided between the adjacent two lifting transmission mechanisms, by being provided with lifting transmission mechanism, holding mechanism, its effect is to ensure that the stability of the bar hair tube body is high in the rolling process of hot rolling line pipe mill, ensure that center line is always on a straight line to avoid the problem that hair tube shakes up and down and left and right in the rolling process, effectively improve production efficiency, greatly reduce adjustment time, stabilize internal and external surface quality, effect is remarkable.
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Claims

1. A pre-rolling clamping device, comprising a tube rolling mill (5), the tube rolling mill (5) further comprising a biting inlet (51) and a guide outlet (52), wherein a guide component (2) is provided on one side of the guide outlet (52), characterized in that, The rolling mill (5) has several lifting and transmission mechanisms (3) on the side away from the guide component (2), and a clamping mechanism (4) is provided between two adjacent lifting and transmission mechanisms (3). At least two clamping mechanisms (4) are provided between two adjacent lifting and transmission mechanisms (3) near the rolling mill (5).

2. A pre-rolling clamping device according to claim 1, characterized in that The transmission direction of the lifting transmission mechanism (3) and the guiding direction of the guide component (2) are on the same horizontal line.

3. A pre-rolling clamping device according to claim 1, characterized in that The clamping mechanism (4) includes a drive member (43), on which a clamping arm (41) is provided, and on which a rotating roller (42) is provided.

4. A pre-rolling clamping device according to claim 1, characterized in that The lifting and transmission mechanism (3) includes a lifting component (32), on which a transmission roller (31) is provided.

5. A pre-rolling clamping device according to claim 4, characterized in that The two ends of the transmission roller (31) are also provided with protective parts (310).

6. A pre-rolling clamping device according to claim 1, characterized in that The exit direction of the guide outlet (52) and the guide direction of the guide component (2) are on the same horizontal line.