SU1395398A1 - Arrangement for feeding tube rolling mill mandrel - Google Patents

Abstract

The invention relates to the field of rolling production and is intended to feed a mandrel to the axis of the tube mill. The purpose of the invention is to increase the reliability of the position of the mandrel on the rolling axis. The device for feeding the mandrel of the pipe mill includes a lever 1 with a grip on the end. The lever is made hollow and mounted on axis 4 in frame 3 with the possibility of rotation from a pneumatic actuator in a plane perpendicular to the axis of rolling. The gripper comprises a housing 6 with an adapter 7 and a core 8 placed between the plates of the permanent magnet 9 and provided with a movement mechanism along the lever made in the form of a spring-loaded pusher II spring 10 connected to the core on one side and pneumocamera 12. 3 Il.

Description

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: The invention relates to pipe production and is intended to feed mandrels of pipe mills.

The aim of the invention is to increase the reliability of the position of the mandrel on the rolling axis.

FIG. 1 shows a device located on a mill; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 shows a section BB in FIG. 2. i The device for feeding the mandrels of the rolling mill contains a drive lever i, made hollow, with a grip 2 at the end and mounted on an axis 4 mounted on the lid of the stand of the axis 4 with the possibility of rotation from an actuator 5 in planes perpendicular to the rolling axis. The grip comprises a housing 6 with an adapter 7, a core 8 placed between the permanent magnet plates 9 mounted in the housing, and equipped with a shifting mechanism along the lever, made in the form of a spring 10 pusher 11 pushed on one side of the core and, on the other hand, with the pneumatic chamber 12. The swinging movement of the richach to the rolling axis is limited by an emphasis 13 fixed on the stand.

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A reference rod (not shown) runs over the mandrel shank (not shown) and takes the mandrel.

With the activation of the pneumatic chamber 12, the pusher moves upwards, lifting the core 8 associated with it, which, detached from adapter 7, disconnects the gripper. In this case, the spring 10, when uncoupled, prevents the lifting of the gripper. With further stirring, the upward core rests on the upper base of the body b and moves it along the lever. The grip is raised. From this position, with the activation of the pneumatic drive on the reverse stroke (by pushing the rod), the lever, rotating around the axis, takes the position I (loading position of the mandrel, see Fig. 2). Pusher with pneumocamera activation is lowered, moving the gripper to the lowest position. Upon further movement, the pusher descends, compressing the spring until the core attached to it contacts the adapter. In the following, the cycle repeats.

The proposed device for feeding the mandrel to the stand axis of the rolling mill ensures that the mandrel is securely positioned on the rolling axis, which contributes to an increase in the quality of rolled tubes.

Claims (1)

Invention Formula The device works as follows. In the initial position, the device for feeding the mandrel is retracted from the axis of the stand to the position I (the loading position of the mandrel, see Fig. 2). At the same time, the pusher 11 is on: it is driven to the lowest position, zah-2 is turned on and lowered. When the mandrel 14 approaches the catch zone, it is attracted and held by the catch. With the activation of the actuator 5 (extension of the rod), the lever 1 rotates around axis 4 until it stops 13 and occupies position II (the position of the unloading of the mandrel), leading the mandrel to the axis of rolling. A device for feeding the mandrel of a rolling mill containing a drive lever with a gripper at the end, characterized in that, in order to increase the reliability of the position of the mandrel on the rolling axis, it is equipped with a gripper moving mechanism along the lever, made in the form of a spring-loaded pusher associated with a pneumatic chamber , and located inside the lever, made hollow, while the grip is made in the form of a housing with the plates of a permanent magnet and a core placed between them, which is connected with the pusher. Mf, 12 ipue.l  .