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滑輪式拉絲機(jī)
它是一種可積線的無滑動(dòng)干式連續(xù)拉絲機(jī)；在拉拔過程中，在卷筒圓周方向鋼絲與卷筒表面沿卷筒圓周方向沒有相對(duì)滑動(dòng)，兩者表面磨損量相對(duì)較小，并且當(dāng)中間某一卷筒臨時(shí)停車時(shí)，其后面的卷筒仍可依靠各自的積線量照常工作一段時(shí)間。該機(jī)型具有結(jié)構(gòu)簡單，操作、維護(hù)方便，制造成本低等優(yōu)點(diǎn)，同時(shí)具有一定的積線系數(shù)，鋼絲在卷簡上停留的時(shí)間較長，有利于鋼絲的充分冷卻。但過線導(dǎo)輪較多，不僅增加了鋼絲的彎曲次數(shù)，而且卷筒的積、放線使鋼絲在拉拔過程中沿自己軸線產(chǎn)生扭轉(zhuǎn)，嚴(yán)重影響了鋼絲的內(nèi)在質(zhì)量和表面質(zhì)量。
滑輪式拉絲機(jī)的這種特點(diǎn)，決定了該機(jī)型只適合于拉拔中、小規(guī)格，質(zhì)量和強(qiáng)度要求相對(duì)較低的鋼絲和其它金屬絲。
雙卷筒式拉絲機(jī)
由于滑輪式拉絲機(jī)在拉拔過程中鋼絲會(huì)產(chǎn)生扭轉(zhuǎn)現(xiàn)象，因而在滑輪式拉絲機(jī)的基礎(chǔ)上發(fā)展了雙卷筒式拉絲機(jī)。該機(jī)型具有滑輪拉絲機(jī)的優(yōu)點(diǎn)，并消除了鋼絲在拉拔過程中的扭轉(zhuǎn)現(xiàn)As the wire on the roll cooling better.
Double roll-drawing machine wire drawing machine with the same pulley, idler pulley more, especially in the upper and lower intermediate roll over the line between the guide wheel, so that it generates through wire 180. Bending, it is not suitable for drawing large-size high-strength steel wire; machine pulley-type operation as convenient, but on the next roll of friction between wheel and other parts of Central and wire a large moment of inertia, limiting the drawing speed improvement. The aircraft is owned by the pulley-type drawing machine drawing machine to a higher level of development of transition models for drawing, the small size wire.
Looper-drawing machine
To further improve the quality and wire drawing speed, the development of a live set of wire-drawing machine, it is also a non-slip wire drawing machine; it simplifies the roll of the route between the wire in the wire drawing process is not axial torsion, and because the use of a DC motor drag, can achieve a greater range of variable speed, roller expanded the scope of the choice between elongation, drawing function in the most reasonable working condition running. And live sets in the drawing process for each reel have had a rally or anti-tension. In the live sets and live sets of anti-pull tension of pulling, the pulling force can reduce, extend die life and drawing the kinetic energy consumption to reduce live-drawing machine is set to automatic speed continuous wire drawing machines, from In theory, the compression ratio of the wire and machine tolerance limits of force and energy parameters within the process as long as the total compression ratio greater than or equal to the total compression rate of the machine, with a model for any kind of process can automatically adjust the machine to complete pull-out process. So looper wire drawing machine is a more advanced drawing machine for drawing small and medium-size high-strength steel and alloy steel wire.
Looper-drawing machine is due to the shortcomings of DC drag, hybrid electric drive system, the machine's high manufacturing costs, maintenance difficult varieties of different specifications of steel wire drawing looper tension adjustment is required; therefore the operation of the machine require a higher level of technology. In addition to the guide wheel over the line models are more complex than threading, bending the wire more times, not drawing large-size wire and excellent materials. Aluminum spot welding
Straight wire-drawing machine
Pulley, double-roll style and plug both sets of wire-drawing machine because there are more than wire-guided round, not drawing large-size wire and excellent material; to solve this problem, the development of a straight wire-drawing machine. Wire wound on the previous roll after a few laps, go directly to the next drawing die and wound on the next roll, the middle line is not over by any guide wheel, steel wire between two linear-shaped roll. It uses the same style with live sets the DC drag, roll through the middle of the speed to automatically adjust the machine and the wire extension coefficient of the actual extension coefficient fit, which is automatically adjusted to achieve the machine's normal operating point process J is equal to the compression ratio compression machine rate.
The threading model has the advantage of a simple, no wires to reverse the process of drawing and small radius bends. The disadvantage is not pulling its smaller size wire, wire in a short time to stay on the roll, the cooling effect is poor; drawing machine and other small scope.
Yi-linear transfer roller drawing machine
This is a combination of live sets, two kinds of wire drawing machine straight into the merits of newer models, it has both the looper-free reverse, speed range, high-speed drawing, Ling has good effect, etc., but also has a simple straight line type wire, threading can be drawn to facilitate large-size wire and so on. A roll of wire in various non-small radius bending phenomenon, the intrinsic quality of wire and surface quality can be given a greater degree of improvement; the middle lane because there is no guide wheel, the mechanical structure is more simplified a lot of live sets, a more advanced drawing machine for drawing high strength, large size of the round and shaped wire: it's large investment, the DC drive system complexity, maintenance is difficult, these factors, it brings a certain amount of promotion difficult.
Water tank drawing machine
District 4 water tank wire drawing machine wire drawing machine of the previous five notable feature is the wire drawing process with the simple volume between the different levels of relative sliding (finished roll exceptions), and wire work, roll, drawing mold are immersed in the coolant or the spray, so called water tank wire drawing machine.
It has the advantage of playing tight structure, small footprint, high-intensive drawing, wire drawing process without the reverse phenomenon for high-speed drawing; due to drawing process is carried out in the coolant, the cooling wire and lubrication conditions are very good, quality is guaranteed.
The disadvantage is that in the drawing process, the wire and roll surface exists between the park along the roll direction of relative sliding week, the friction and the roll of the coolant and stir a lot of power consumption not only reduces the machine efficiency. And to seriously roll surface wear; structural limitations as the machine itself, in the process drawing a smaller bending radius of the wire, with threading and other reasons, determines that it is more suitable for a variety of detailed specifications drawn steel wire.
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