CN1490224A

CN1490224A - Method for making concave straw supporting cushions for steel rolls

Info

Publication number: CN1490224A
Application number: CNA031573487A
Authority: CN
Inventors: 赵宝贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2004-04-21
Anticipated expiration: 2023-09-19
Also published as: CN1228215C

Abstract

A concave underlay for transporting the coiled steel band is made up of grass through alternatively spreading long and short grasses layer by layer, pressing and binding. Its advantages are high impact resistance and low cost.

Description

The concave type straw back cushion processing method that supporting steel rolls is used

Technical field

The present invention relates to an a kind of pad processing method of supporting steel rolls transportation usefulness, relate in particular to a kind of production method of concave type straw back cushion of supporting steel rolls transportation usefulness.

Background technology

In the past, used propping up filled up in China's steel transportation, mostly adopt wooden pad or iron and steel to prop up pad, these two kinds pads not only waste a large amount of timber and steel resources, add man-hour labour intensity big, productive costs is high, and the greatest drawback of these two kinds pads is the impulsive forces that can not absorb in the transportation to be produced, and can not satisfy the needs of railway security transportation.

In order to address the above problem, in recent years, people begin one's study and make Raw material processing making grass mat with grass blade.Yet the grass mat that the initial stage makes although saved a large amount of timber and steel, has reduced production cost, because being shaped as template and loose insecure, easy breakage, so still do not reach the security needs of transportation trial of strength goods, the circular coil of strip of especially high tonnage.

China's ZL9210821.2 patent provide section for rectangle the grass mat production equipment and processing method, Chinese ZL01241344.5 patent provide transport steel plate, the appearance cover has the rectangle of sheath to prop up pad, Chinese ZL98203243.9 patent provides the corn stalk abnormal shape that is triangular prism or quadrangular shape anti-skid support pad, the pad that these patent documentations provide is limit because of shape, make coil of strip possibility slippage in transportation, can not satisfy the needs of the circular goods of safe bearing load.

China ZL02236632.6 patent provides a kind of concave type straw back cushion that has steel grid keel, there is not adhesive ability between steel grid keel wherein and the grass pad, so it is solid and reliable that the grass that this structure is far from combining closely through suitable shop wadding compacting between grass and the grass props up pad, this method is made a grass pad productive costs height, poor safety performance.

China ZL02239755.8 patent, Chinese ZL98237354.6 patent, Chinese ZL00231546.7 patent provide the anti-skidding bearing of the concave type roll bending that is pressed into straw, Chinese ZL99126212.3 patent, Chinese ZL01247354.5 patent and Chinese ZL98238507.2 patent documentation that a pad shaped device is provided, but these patent documentations all fail to provide the method for the suitable concave type straw back cushion of a kind of production safety.

In sum, up to the present, fail also in the prior art to provide that a kind of quality of production is safe and reliable, anti-impact force strong and the method for the concave type straw back cushion that cost is low, to satisfy China to transporting circular coil of strip security needs.

Summary of the invention

To the objective of the invention is in order addressing the above problem, the job operation of the concave type straw back cushion that a kind of new production supporting coil of strip uses to be provided, the inventive method comprises: step is wadded a quilt with cotton, suppressed, ties up in the shop.

Technical scheme of the present invention is: the root of grass grows grass, the short grass alternatively layered spreads wadding towards the outer end when spreading wadding; Ground floor, last one deck and every layer of outermost spread wadding with growing grass; The grass mat arc section place waddings one that spread are covered short grass then with growing grass.

In the preferred version provided by the invention, during the wadding of shop, the amount of lap 〉=50mm of grass; When growing grass, the shop wadding overlaps with the root tip; The root tip mixed use when short grass was wadded a quilt with cotton in the shop.

In the again preferred version provided by the invention, during compacting, operating pressure is greater than 3 times of the grass mat bearing pressure; The bolster minimum range is 0.3-0.4 times of grass mat underlayer thickness.

In another preferred version provided by the invention, the number of plies of each grass mat shop wadding is minimum to be 7 layers, suppress least number of times is 4 times.

In another preferred version provided by the invention, the grass mat surface spreads the clean grass behind the wadding defoliation sheet, makes the outward appearance of grass mat cleaner and tidier.

In another preferred version provided by the invention, when tying up, earlier iron wire is put into the tie wire casing of lower bolster, tie up with two iron wires a grass pad outer end, and the iron wire end 50mm that staggers puts into; Pad place, inclined-plane twists into fried dough twist thigh iron wire with two and ties up, and it is identical that the length of fried dough twist thigh and grass prop up the width that fills up; Iron wire passes template tie wire casing around bundle, the fried dough twist strand at place, inclined-plane, and one is passed the formation triangle in adjacent tie wire casing.

In the another preferred version provided by the invention, carry out the punching step at last.

In the another preferred version provided by the invention, adjust cutter head during punching, make cutter head penetrate grass mat from bottom to top and stretch out grass mat 5mm.

The concave type straw back cushion production process middle berth that the present invention specifically provides wads a quilt with cotton, suppresses, ties up technology, solved the problems such as loose insecure, the easy breakage of the grass mat of in the past producing.Wad a quilt with cotton, suppress, tie up the grass mat that technology is produced according to shop provided by the invention, quality safety is reliable, strong shock resistance, production cost are low, can better satisfy the security needs of round steel coil transportation.

Description of drawings

Fig. 1 is an of the present invention pad back-pressure shaping machine structure scheme drawing;

Fig. 2 is grass mat finished product structure schematic diagram of the present invention.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

1. clean grass

Select the stiffening grass of grass roots, with straw defoliation sheet, the neat bundle of clean grass well, hand hay cutter is cut neatly more then with clean careless machine.

2. shop wadding, compacting

Earlier iron wire is put into the tie wire casing of lower bolster 6, a grass pad outer end 3 is put two, and 50mm is staggered in case stubborn mixing in two end; Two iron wires at place, inclined-plane 4 twist into the fried dough twist thigh and put into, and the length of fried dough twist thigh equals the width of a grass pad.

With the clean careless pier of defoliation sheet neat after, along the even shop wadding ground floors of lower bolster 6, with growing grass clean grass is covered again; Then with short grass, the alternatively layered that grows grass shop wadding; The clean grass of last one deck and every layer of outermost shop wadding defoliation sheet makes a grass pad outward appearance cleaner and tidier.

For guaranteeing the hardness at grass mat arc section place 2, two arc sections respectively add a short grass in grass mat, and the grass that lengthens is again covered short grass.

The grass roots pier is together towards the grass mat outer end when spreading wadding, mutual amount of lap 〉=50mm between the grass;

During compacting, the operating pressure of a pad back-pressure make-up machine is 4 times of grass mat bearing pressure, and machine cope match-plate pattern 7 is pressed onto the end at every turn, stops 1-2 kind second, and then rises, and carries out lower operation.

Minor increment between bolster remains on 0.3 times of grass bedding course 1 thickness.

The grass mat of bearing pressure 3-5 ton, the number of plies of compacting are 7 layers, and the compacting number of times is 4 times; Bearing pressure is 25 tons grass mat, and the compacting number of plies is 18 layers, and the compacting number of times is 12 times.

3. tie up

Spreading wadding, compacting ties up after complete: iron wire passes around the bundle grass mat from the tie wire casing 8 of template, the fried dough twist strand at place, inclined-plane 4, and one is passed in adjacent tie wire casing, forms the mutually stable triangle of restriction.

4. punching

Adjust cutter head 9, the grass mat hole is beaten after, cutter head exceeds grass mat 5mm, has so both guaranteed dozen saturating grass mat, does not damage again cutter head and template.5 diameters with holes of punching are to wear 1.5 times that are with diameter.

5. sawing, finishing, warehouse-in

Open gate-type template 10, take out grass mat, neat with the sawing machine sawing.

Grass after the sawing props up pad and prunes, and makes a grass pad surface not have the hair grass, does not have uneven hair stubble.

Grass is propped up the pad finished product carry out sign, the branch specification is neatly put in storage.

Claims

1, the concave type straw back cushion processing method used of a kind of supporting steel rolls comprises spreading and wad a quilt with cotton, suppresses, ties up step, it is characterized in that: the root of described method grass when spreading wadding is towards the outer end, grows grass, the short grass alternatively layered spreads and wad a quilt with cotton; Ground floor, last one deck and every layer of outermost spread wadding with growing grass; Grass mat arc section place (2) waddings one that spread are covered short grass then with growing grass.

2, the concave type straw back cushion processing method used of supporting steel rolls according to claim 1 is characterized in that: amount of lap 〉=50mm of described shop wadding medium-height grass, and root tip overlap joint when wadding grows grass, the root tip mixes and uses during the wadding short grass.

3, the concave type straw back cushion processing method used of supporting steel rolls according to claim 1 and 2, it is characterized in that: operating pressure is greater than 3 times of the grass mat bearing pressure in the described compacting.

4, the concave type straw back cushion job operation used of supporting coil of strip according to claim 3 is characterized in that: in the described compacting bolster minor increment be grass bedding course (a 1) thickness 0.3-0.4 doubly.

5, the concave type straw back cushion job operation used of supporting coil of strip according to claim 4 is characterized in that: the number of plies of each grass pad shop wadding is minimum to be 7 layers; The compacting least number of times is 4 times.

6, the concave type straw back cushion processing method used of supporting steel rolls according to claim 5 is characterized in that: the surface spreads the clean grass of wadding defoliation sheet.

7, the concave type straw back cushion job operation used of supporting coil of strip according to claim 6 is characterized in that: described tying up to iron wire put into lower bolster (6) tie wire casing earlier, and tie up with two iron wires a grass pad outer end (3), and the iron wire end 50mm that staggers puts into; Pad place, inclined-plane (4) twists into fried dough twist thigh iron wire with two and ties up, and it is identical that the length of fried dough twist thigh and grass prop up the width that fills up; Iron wire passes template tie wire casing (8) around bundle, the fried dough twist strand of place, inclined-plane (4), and one is passed the formation triangle in adjacent tie wire casing.

8, the concave type straw back cushion job operation of using according to the described supporting coil of strip of above-mentioned arbitrary claim is characterized in that: carry out the punching step at last.

9, the concave type straw back cushion job operation of using according to the described supporting coil of strip of above-mentioned arbitrary claim is characterized in that described punching step is: adjust cutter head (9), make cutter head penetrate a grass pad from bottom to top after, cutter head stretches out a grass pad 5mm.