CN201257459Y - Coiler mandrel capable of eliminating stamp - Google Patents

Abstract

The utility model relates to a coiler drum for eliminating impression, which comprises a telescoping cylinder rod (10), fan-shaped blocks (1), a mandrel (9), a pyramid (2) and a movable jaw (4), wherein the fan-shaped blocks (1) are arranged on the periphery of the pyramid (2), and a sealing block (6) is arranged among the three fan-shaped blocks (1); the top end of the movable jaw (4) is cambered, and the movable jaw (4) is arranged in one of the fan-shaped blocks (1); a sealing inclined strip (8) is arranged between the sealing block (6) and the pyramid (2), and a movable inclined strip (3) is arranged between the movable jaw (4) and the pyramid (2). The utility model eliminates reasons generating the eliminating impression, enables the whole drum to be more reasonable, improves the product quality and greatly improves the economic benefits at the same time.

Description

Eliminate the impression coiler mandrel

Technical field

The utility model relates to metallurgy industry thin plate steel rolling equipment, and more particularly it is a kind of elimination impression coiler mandrel.

Background technology

In cold rolled strip steel production, all need uncoiling and batch at each unit.Coiling machine is when work, and at first reel is in the contraction situation, and this moment, the reel cross section was not round, but one has the irregular shape (as shown in Figure 1) that full-size is 480mm.The movable clamp port maximum of dehiscing of this moment.When the head of band steel inserts in movable clamp port dehisces, reel begins spreading, and when increasing to diameter phi 510mm (as shown in Figure 2), the band steel during movable clamp port is dehisced is clamped by jaw, and reel began the rotating band coil of strip and took away the beginning this moment.So owing to batch time band steel bigger tension force (as shown in Figure 3) behind first lap is arranged, is with between movable clamp port and two umbrella shape pieces that impression just begins to produce under the effect of steel circumferential pressure.First kind of impression: at first we can see that movable clamp port position A is batching first lap to herein the time from Fig. 3, the band steel has one very significantly to jump, be exactly that the steel band that volume got on after this jump made produces tangible spool shaft herein to impression under the effect of circumferential pressure, and this has the band steel of impression, just disappear gradually later up to 1/3 of the roll coil of strip, so 1/3rd of a coil of strip will become substandard products.Second kind of impression: because former coiling machine is a four segment type mandrel, and axially adopting square jagged occlusion structure (as shown in Figure 4), and this structure has the breach more than the 20mm all the time when proper circle, the band steel is with laterally square jagged impression of steel everywhere having in circle in coiling process as a result, equally the roll coil of strip 1/3 after just disappear gradually.

In addition, reel adds man-hour at the band gap proper circle, can make reel in real work because the inevitable gap of each slip place makes the reel proper circle have uncertainty, and old reel is not in proper circle in the practical work process, this has just more increased the weight of the formation that impresses.

Reel is when batching the band steel, and along the impression that the strip width direction produces, these impressions are maximum can to account for about 1/3 of whole winding steel, and this part band steel is a substandard products.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, and a kind of elimination impression coiler mandrel is provided.

The purpose of this utility model reaches by following measure: eliminate the impression coiler mandrel, it comprises that telescoping cylinder bar, secter pat, mandrel, pyramid, movable clamp port, secter pat are positioned at the pyramid periphery, it is characterized in that described secter pat is three, sealing block is arranged between the secter pat, the top of movable clamp port is a circular arc, and be positioned at one of them secter pat, and the sealing slanted bar is arranged between sealing block and the pyramid, mobile slanted bar is arranged between movable clamp port and the pyramid.

In technique scheme, the top of described movable clamp port is that radius R is the circular arc of 18mm.

1., be the movable clamp port that original tape corner angle movable clamp port is changed into band R angle the utility model is eliminated the impression coiler mandrel and had following advantage:, this fillet has been eliminated the movable clamp port impression.2., reel integral body is more reasonable: change original circumferentially four fan-shaped pyramid reel with seam into three secter pat pyramid reels not with seam fully, make smooth nothing depression of reel whole outer round surface when the tensioner situation and projection; It has eliminated original spool shaft to inevitable slit and other factors, has thoroughly avoided the generation of impression.3., improved product quality, economic benefit improves greatly.

Description of drawings

It when Fig. 1 shrinks for existing coiler mandrel the no gap of non-circle state.

Fig. 2 is to be gapped state between the umbrella shape piece when having the coiler mandrel proper circle now.

The state diagram that Fig. 3 produces impression for existing coiler mandrel movable clamp port.

Fig. 4 produces the structure chart in gap for existing coiler mandrel radial saw dentation interlock.

Fig. 5 eliminates the structure cut-away view of impression coiler mandrel for the utility model.

Fig. 6 is the structure cut-away view (contraction state) of A-A condition among Fig. 5.

Fig. 7 is the structure cut-away view of Fig. 6 tensioner state.

1. secter pats among the figure, 2. pyramid 3. moves slanted bar, 4. movable clamp port, 5. circular arc, 6. sealing block, 7. band steel, 8. sealing slanted bar, 9. mandrel, 10. telescoping cylinder bar, 11. impressions, 12. gaps.

The specific embodiment

Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously, by illustrating that advantage of the present utility model will become more clear and understand (the utility model during with proper circle when φ 510mm, undergauge the coiler mandrel of φ 480mm be the example explanation) easily.

Consult accompanying drawing as can be known: the utility model is eliminated the impression coiler mandrel, it comprises that telescoping cylinder bar 10, secter pat 1, mandrel 9, pyramid 2, movable clamp port 4, secter pat 1 are positioned at pyramid 2 peripheries, secter pat 1 is three, sealing block 6 is arranged at interval between three secter pats, the top of movable clamp port 4 is a circular arc, and be positioned at one of them secter pat, and sealing slanted bar 8 is arranged between sealing block 6 and the pyramid 2, mobile slanted bar 3 is arranged between movable clamp port 4 and the pyramid 2; The top of movable clamp port 4 is that radius is the circular arc (as Fig. 5, Fig. 6, shown in Figure 7) of 18mm.

Radius R on the movable clamp port be the circular arc of 18mm be through repeatedly the experiment after draw optimum value.The experiment proved that: other R value all can produce impression to a certain degree.

When telescoping cylinder bar 10 is upheld, eliminate the impression coiler mandrel and be in spreading state (proper circle state), telescoping cylinder bar 10 drives sealing slanted bar 8 and mobile slanted bar 3 by pyramid 2, sealing slanted bar 8 is with sealing block 6 jack-up, mobile simultaneously slanted bar 3 is with movable clamp port 4 jack-up, and pyramid 2 is three secter pat jack-up, thereby makes three secter pats, sealing block 6 and movable clamp port 4 form smooth circumference (as shown in Figure 7).Otherwise then the utility model elimination impression coiler mandrel then is in contraction state (as shown in Figure 6)

On manufacturing process: when processing winding drum φ 510 proper circles, at first doing two internal diameters is that φ 515 round circular boops are worked into φ 515 by conventional method with the reel cylindrical then, again two circular boops are enclosed within two of reel, take any type of axial tension pulling mandrel with the circular boop tensioner then, purpose is to eliminate all structural gaps, again the reel cylindrical is worked into φ 510 at last.This method can make reel can not produce structural radial contraction in the process of producing, and has thoroughly eliminated the manufacturability reason that produces impression.

Because of the reel impression is created on the non-orientation silicon steel band, total benefit calculation is as follows:

(1). Wuhan Iron and Steel Plant silicon steel ton steel pin is sold the loss of concession valency:

Average total sale price=(actual cost of material-recovery+actual rolling expense the+administration fee) * 17% expenses of taxation+(actual cost of material-recovery+actual rolling expense+administration fee)+six compositions such as other expenses of taxation of non-orientation silicon steel;

So the average total sale price of non-orientation silicon steel=8180.25 yuan/ton.

Actual concession valency is: 8180.25*8%=654.42 unit/ton;

The tonnage of annual concession valency in 2007 is: 5270.57 tons;

The tonnage of 1-6 month concession valency in 2008 is: 2335.6 tons; Estimate that so be the whole year: 4904.76 tons.

The average concession valency tonnage in 2 years is: 5087.67 tons.

Wuhan Iron and Steel Plant because of the total loss of concession valency annual is: 5087.67*654.42=3329473 unit=332.95 ten thousand yuan.

(2) the useless volume of the low grade non-oriented silicon steel loss of .CS3.4 line generation:

The CS34 line is produced ten thousand tons of non-orientation silicon steel=2.8*12=33.6 per year; Wherein high grade non-oriented silicon steel=33.6*30%=10.08 is ten thousand tons.

In ten thousand tons of low grade non-oriented silicon steel annual production=33.6-10.08=23.52;

Ten thousand tons of middle grade non-oriented silicon steel=23.52*40%=9.408; Ten thousand tons of low grade non-oriented silicon steel annual production=23.52-9.408=14.112;

Ten thousand tons of the loss=14.112*6%=0.84672 that produces because of impression.

Year loss of the useless volume of the low grade non-oriented silicon steel of CS34:

=8467.2*8180.25=69263812.8 unit=6926.38 ten thousand yuan.

(3) loss that brings of processing time of being produced because of useless volume of .CS34:

Every line was rolled up unit because of giving up in every month and will be shut down processing 3-4 time; Each about 2-3 hour; By per hour producing 14 tons, 80 yuan per ton;

Article two, the line processing time year loss=3*2*12*14*80*2=161280 unit that brings=16.128 ten thousand yuan;

(4). the year total benefit that after transforming, produces

Ten thousand yuan of=332.95+6926.38+16.128=7275.458.

Claims (2)

1, eliminates the impression coiler mandrel, it comprises that telescoping cylinder bar (10), secter pat (1), mandrel (9), pyramid (2), movable clamp port (4), secter pat (1) are positioned at pyramid (2) periphery, it is characterized in that described secter pat (1) is three, sealing block (6) is arranged between the secter pat, the top of movable clamp port (4) is a circular arc, and be positioned at one of them secter pat, between sealing block (6) and the pyramid (2) sealing slanted bar (8) is arranged, between movable clamp port (4) and the pyramid (2) mobile slanted bar (3) is arranged.

2, elimination impression coiler mandrel according to claim 1, the top that it is characterized in that described movable clamp port (4) is that radius R is the circular arc of 18mm.

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