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Large-diameter hot billet cutting-off device

A technology of cutting device and cutting mechanism, which is applied in the field of shaft blank cutting, can solve the problems of poor flatness of cutting section, frequent tool replacement, large tool loss, etc., achieve good work efficiency, good cutting stability, and reduce workload Effect

Pending Publication Date: 2020-06-19
DEQING TIANMA BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Cutting with a rotary cutter has problems such as large tool loss, frequent tool replacement, poor cutting section flatness, and low cutting efficiency;
[0006] 2. Cutting by gas cutting often has problems such as high energy consumption, large pollution, and large material loss.

Method used

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  • Large-diameter hot billet cutting-off device
  • Large-diameter hot billet cutting-off device
  • Large-diameter hot billet cutting-off device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: as Figure 1-2 As shown, a large-diameter hot billet cutting device is used in conjunction with a continuous casting machine, including a frame, which can be formed by connecting various profiles. No specific introduction is made here. The frame is sequentially provided with Conveying area, lifting and conveying follow-up area, cutting area, lifting and conveying follow-up heat preservation area; the conveying area is provided with a first conveying roller 31;

[0042] The lifting and conveying follow-up area is provided with a second conveying roller 21, a first stick frame 22 for installing the second conveying roller 21, and a first lifting device 23 for driving the first stick frame 22 to lift ;

[0043]The cutting area is provided with a cutting mechanism; the cutting mechanism includes a bearing roller 11 for carrying the hot billet, a driving mechanism for driving the hot billet and making the hot billet rotate with the central axis of the hot bill...

Embodiment 2

[0050] Embodiment 2: different from embodiment 1, such as Figure 4 As shown, the cutting mechanism also includes a radial pressure roller 14 correspondingly arranged relative to the pressure knife 12, which is used to level the bulge caused by extrusion at the pressed part of the hot billet, and is arranged above the bearing roller 11, which can be Symmetrical distribution on both sides of the hot billet, attached Figure 4 It only shows that the radial pressure roller 14 is set on one side, and does not indicate that the radial pressure roller 14 is set on both sides, so as to prevent the hot billet from being greatly bulged due to axial extrusion and deform the radial bulge of the hot billet. Keep it within an acceptable range, reduce the workload of the subsequent finishing of the short blank after cutting, and at the same time, due to the existence of the radial pressure roller 14, when the pressure knife 12 exerts a pressure facing the radial pressure roller 14, the diam...

Embodiment 3

[0052] Embodiment 3: Different from Embodiment 1, the roller surface of the carrying roller 11 is a supporting leveling plane capable of leveling the bulging portion of the hot billet at the pressure-receiving position due to extrusion. With this arrangement, since the bearing roller 11 plays two roles of supporting and leveling, there is no need to set up additional leveling components such as pressing rollers to level the bulging part of the hot billet pressure part due to extrusion, so that the entire cutting Mechanism, less parts consumption, simple structure and low cost.

[0053] Further, such as Image 6 As shown, the roller surface of the carrying roller 11 is provided with a second annular material avoidance opening 111 facing the press knife 12 .

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Abstract

The invention provides a large-diameter hot billet cutting-off device. The large-diameter hot billet cutting-off device is used in matching with a continuous casting machine. The large-diameter hot billet cutting-off device comprises a machine frame, and a conveying area, a lifting conveying follow-up area, a cutting area and a lifting conveying follow-up insulation area are arranged on the machine frame in sequence; the conveying area is provided with a first conveying roller; the lifting conveying follow-up area is provided with a second conveying roller, a first roller frame for installingthe second conveying roller and a first lifting device for driving the first roller frame to move up and down; the cutting area is provided with a cutting-off mechanism; and the lifting conveying follow-up insulation area is provided with a third conveying roller, a second roller frame for installing the third conveying roller, a second lifting device for driving the second roller frame to move upand down and a rapid-cooling prevention device for preventing rapid cooling of a hot billet. According to the large-diameter hot billet cutting-off device, the large-diameter hot billet cast by the continuous casting machine is cut off in time, good working efficiency is achieved, low energy consumption, less pollution and low material wastage rate in the cutting process are achieved, and the large-diameter hot billet cutting-off device is more in line with green production.

Description

technical field [0001] The invention relates to the field of shaft blank cutting, in particular to a large-diameter hot blank cutting device. Background technique [0002] As a raw material, the shaft blank can be made into bearings and the like after being cut into short pieces and finished. The diameter length of the shaft blank depends on the working conditions. For example, the maximum shaft diameter length of the gasket bearing can reach more than half a meter. [0003] For these shaft blanks with large diameters, they are generally cast by continuous casting machines. The shaft blanks cast by continuous casting machines have large axial lengths and need to be cut into short pieces. [0004] At present, these shaft blanks with large shaft length and large diameter cast by continuous casting machines are usually cut after cooling, and are usually shortened by the following methods: [0005] 1. Cutting with a rotary cutter has problems such as large tool loss, frequent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D45/04B23D45/10B23D47/04B23D59/02B23D47/10C23C8/20B23P25/00B21D3/10
CPCB21D3/10B23D45/042B23D45/10B23D47/04B23D47/10B23D59/02B23P25/00C23C8/20
Inventor 马兴法张挺吴敏
Owner DEQING TIANMA BEARING CO LTD
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