CN201676875U

CN201676875U - Small hot mill

Info

Publication number: CN201676875U
Application number: CN2010201715969U
Authority: CN
Inventors: 陈卫民
Original assignee: GUANGZHOU XIANYI ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU XIANYI ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2010-04-26
Filing date: 2010-04-26
Publication date: 2010-12-22
Anticipated expiration: 2020-04-26

Abstract

The utility model provides a small hot mill, comprising a roller, two arc-shaped heating blocks and a plurality of heating sticks, wherein the roller comprises an upper roll and a lower roll; the two arc-shaped heating blocks are respectively arranged at the upper part and the lower part of the upper roll and the lower roll, and the cambered surfaces of the two arc-shaped heating blocks are tangent with the surfaces of the upper roll and the lower roll; the two arc-shaped heating blocks are provided with a plurality of mounting holes; and the heating sticks are arranged in the mounting holes. The small hot mill is heated and cooled by the heating sticks and cooling holes, the heating structure and the cooling structure are simple, and the using life of the hot mill is prolonged.

Description

A kind of low profile thermal milling train

Technical field

The utility model relates to hot rolling system equipment field, relates in particular to a kind of small-sized hot-rolling mill, and it is applicable to hot worked alloy of rolling various needs and macromolecular material.

Background technology

At present, heating has dual mode to hot-rolling mill rumble roller in the prior art: oil heating and hot blast heating.The oil heating is the oily passage that cuts out some in rumble roller inside, adopts brush to add deep fat, and heat is transmitted to rumble roller surface from the inside to surface and obtains needed rolling temperature.There are two defectives in this method: 1. rumble roller internal temperature is too high, can cause heat waste, and the temperature on rumble roller surface is restricted.2. add deep fat and can produce oil smoke, environmental pollution is serious.The hot blast heating is to heat rumble roller surface by the hot blast that blows uniform temperature on rumble roller surface.This method has heating defective such as inhomogeneous, and it is serious also can to cause whole machinery to conduct heat in addition, influences the precision of equipment.Axle head cooling to hot-rolling mill in the prior art then realizes that by cooling water pipe is installed this method more complicated can not realize for small-sized hot-rolling mill.

The utility model content

The purpose of this utility model is to solve the above-mentioned shortcoming of prior art, provides a kind of heating arrangement and cooling structure simple low profile thermal milling train.

For solving the problems of the technologies described above, the utility model provides a kind of low profile thermal milling train, comprise rumble roller, two arc heat blocks, a plurality of heating bar, described rumble roller comprises top roll and lower roll, described two arc heat blocks are arranged at the upper and lower of top roll and lower roll respectively, and the cambered surface of described arc heat block and described top roll and lower roll is surperficial tangent, also is provided with a plurality of installing holes on described two arc heat blocks, and described heating bar is arranged in the described installing hole.

The both ends of the axle of described top roll and lower roll also are provided with the cooling hole.

Described cooling hole is for being obliquely installed.

The utlity model has following advantage:

(1) adopts heating bar to receive the physics transmission of heat by contact, have characteristics such as heat transfer is fast, heat utilization ratio height;

(2) inclined design in the cooling hole of rumble roller two end axles is simple, and the cooling fluid gravitate refluxes automatically, takes away heat, reduces the temperature of copper sheathing, guarantees the precision of machinery.

Description of drawings

Fig. 1 is the side view of the utility model low profile thermal milling train;

Fig. 2 is the front view of the utility model low profile thermal milling train.

The specific embodiment

Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated.

Shown in seeing figures.1.and.2, be respectively the side view and the front view of the utility model low profile thermal milling train.By above-mentioned accompanying drawing as can be seen, low profile thermal milling train of the present utility model comprises rumble roller, two arc heat blocks 4, a plurality of heating bar 3, wherein the rumble roller comprises top roll 1 and lower roll 2, two arc heat blocks 4 are arranged at the upper and lower of top roll 1 and lower roll 2 respectively, the cambered surface of two arc heat blocks 4 and top roll 1 and lower roll 2 surperficial tangent is used for heat is reached rumble roller surface by the physics contact.Heating bar 3 is mounted in the installing hole of arc heat block 4 pre-designs, and after heating bar 3 energisings, heat is directly conducted on the arc heat block 4, by physics transmission of heat by contact heating top roll 1 and lower roll 2.Thus, low profile thermal milling train of the present utility model can be realized the heating to the rumble roller: start power switch, and with heating bar 3 heating powers, heating bar 3 and then heating arc heat block 4, heat reaches rumble roller surface by the physics contact again, meets the requirements of the rumble roll surface temperature.

Further, the both ends of the axle of top roll 1 and lower roll 2 also are provided with the cooling hole 5 with certain hole depth, its role is to utilize cooling fluid to be ejected in the cooling hole 5, and the copper sheathing surface temperature is cooled off.Preferably, cooling hole 5 is for being obliquely installed, and the cooling fluid that is ejected into like this in the cooling hole 5 can reflux under the gravity effect automatically, takes away heat, not only reduces the temperature of copper sheathing, and can guarantee the precision of machinery.

Below in conjunction with the concrete course of work the utility model is further detailed: start power switch, with heating bar 3 heating powers, temperature is set to 200 ℃.Open the switch of low profile thermal milling train, rumble roller rotation, heat is top roll 1 and lower roll 2 surfaces by transmission of heat by contact to two rotation equably, are about 150 ℃ with the infrared temperature that records rumble roller surface after the balance.In the time of cooling, cooling fluid is ejected in the cooling hole 5 at a two ends with shower nozzle, because cooling hole 5 tilts, the cooling fluid of being heated is subjected to gravity effect oneself and flows out from cooling hole 5, collects these cooling fluids with bucket, can recycle.Cooling fluid reduces the temperature of all mechanical parts that contact with the rumble roller, mainly comprises the copper sheathing that supports the rumble roller, prevents the copper sheathing wearing and tearing, guarantees mechanical precision, prolongs the service life of this utility model.The temperature of the copper sheathing of this utility model can maintain about 40 ℃, and the life-span is obviously elongated.

The utility model low profile thermal milling train heating arrangement and cooling structure are all very simple to explanation of the present utility model as can be seen by above-mentioned, and help prolonging the service life of low profile thermal milling train.

Need to prove at last; the above only is preferred embodiment of the present utility model; rather than to the qualification of technical solutions of the utility model, any the utility model technical characterictic being equal to of being done replaced or corresponding improvement, still within protection domain of the present utility model.

Claims

1. low profile thermal milling train, it is characterized in that, comprise rumble roller, two arc heat blocks (4), a plurality of heating bar (3), described rumble roller comprises top roll (1) and lower roll (2), described two arc heat blocks (4) are arranged at the upper and lower of top roll (1) and lower roll (2) respectively, and the cambered surface of described two arc heat blocks (4) and described top roll (1) and lower roll (2) is surperficial tangent, also be provided with a plurality of installing holes on described two arc heat blocks (4), described heating bar (3) is arranged in the described installing hole.

2. low profile thermal milling train as claimed in claim 1 is characterized in that, the both ends of the axle of described top roll (1) and lower roll (2) also are provided with cooling hole (5).

3. low profile thermal milling train as claimed in claim 2 is characterized in that, described cooling hole (5) is for being obliquely installed.