CN1228215C

CN1228215C - Method for making concave straw supporting cushions for steel rolls

Info

Publication number: CN1228215C
Application number: CN 03157348
Authority: CN
Inventors: 赵宝贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2005-11-23
Anticipated expiration: 2023-09-19
Also published as: CN1490224A

Abstract

The present invention discloses a method for making concave straw supporting cushions for transporting steel rolls. The present invention solves the problem that at present, no method for making safe reliable straw supporting cushions can be provided. The method comprises a laying step, a pressing step and a binding step. In the laying step, roots of straw face to the outer end, long straw and short straw are alternate and laminated to be laid, the first layer, the last layer and the utmost outside of each layer are laid with the long straw, an arch part of a straw supporting cushion are laid with short straw some more, and then, the arch part is covered with the long straw. The straw supporting cushion made according to the method has the advantages of safe and reliable quality, strong shock resistance and low cost. The safety requirements of the transportation of circular steel rolls can be better satisfied.

Description

The concave type straw back cushion job operation that the supporting coil of strip is used

Technical field

The present invention relates to an a kind of pad job operation that supports coil of strip transportation usefulness, relate in particular to a kind of production method that supports the concave type straw back cushion of coil of strip 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 a raw material processing and fabricating grass pad with grass blade.Yet the grass that the initial stage makes props up pad, though saved a large amount of timber and steel, has reduced productive costs, because of being shaped as template and loose insecure, easy breakage, so the still out of reach security needs of transporting high tonnage circle coil of strip.

It is that the grass of rectangle props up pad production facilities and job operation, " CN 2487676 Y " patent and provides and transport that oblong steel plate, that appearance is with sheath is propped up pad, " CN2315057 Y " patent provides the corn stalk abnormal shape that is triangular prism or quadrangular shape anti-skidding pad that " CN 1074852 C " patent provides section, the pad that these patent documentations provided 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.

" CN 2547665 Y " 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.

" CN 2548940 Y ", " CN 230774 Y ", " CN 2406885 Y " patent provide the anti-skidding bearing of the concave type roll bending that is pressed into straw, " CN 1258630 C ", " CN 2493395 Y " patent and " CN2331497 Y " 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: when wadding shop grass root towards the outer end, grow grass, short grass alternatively layered shop wadding; Ground floor, last one deck and every layer of outermost are wadded a quilt with cotton with the shop that grows grass; Grass many shops, pad arc portion place wadding one deck short grass is covered with growing grass then.

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 preferred version more provided by the invention, during compacting, operation pressure props up 3 times of pad bearing pressure greater than grass; The bolster minor increment is 0.3-0.4 a times of a grass bedding course thickness.

In another preferred version provided by the invention, the number of plies of each careless pad 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 clean grass behind grass shop, the pad surface wadding defoliation sheet makes the outward appearance of a grass pad 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 from bottom to top and prop up pad and stretch out a grass pad 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 grass of in the past producing and propped up problems such as loose insecure, the easy breakage of pad.Wad a quilt with cotton, suppress, tie up the grass that technology produces according to shop provided by the invention and prop up pad, quality safety is reliable, strong shock resistance, productive costs are low, can better satisfy the security needs of round coil of strip transportation.

Description of drawings

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

Fig. 2 is that grass of the present invention props up pad finished product structural representation.

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 a grass pad arc portion place 2, prop up pad two arc portions at grass and respectively add a short grass, the grass that lengthens is again covered short grass.

The grass roots pier props up the pad outer end towards grass together when wad a quilt with cotton in the shop, mutual amount of lap 〉=50mm between the grass;

During compacting, the operation pressure of a pad back-pressure make-up machine is 4 times of a grass pad 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, following operation.

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

The grass of bearing pressure 3-5 ton props up pad, and the pressure-formed number of plies is 7 layers, and the compacting number of times is 4 times; Bearing pressure is that 25 tons grass props up pad, and the compacting number of plies is 18 layers, and the compacting number of times is 12 times.

3. tie up

Shop wadding, compacting are tied up after finishing: iron wire passes around a bundle grass pad 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 stable triangle of mutual restriction.

4. punching

Adjust cutter head 9, a grass pad hole is beaten after, cutter head exceeds a grass pad 5mm, has so both guaranteed to beat saturating grass and has filled up, and does not damage cutter head and template again.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 a grass pad, 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, a kind ofly support the concave type straw back cushion job operation that coil of strip is used, comprise that the shop wad a quilt with cotton, suppresses, ties up step, it is characterized in that: the root of described method grass during for the shop wadding is towards the outer end, grows grass, short grass alternatively layered shop wads a quilt with cotton; Ground floor, last one deck and every layer of outermost are wadded a quilt with cotton with the shop that grows grass; Many shops, a grass pad arc portion place (2) wadding one deck short grass is covered with growing grass then.

2, the concave type straw back cushion job operation used of supporting coil of strip 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 job operation used of supporting coil of strip according to claim 2 is characterized in that: in the described pressing step, operation pressure props up 3 times of pad bearing pressure greater than grass.

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, the 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 job operation used of supporting coil of strip according to claim 5 is characterized in that: the clean grass of shop, surface 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 used of supporting coil of strip according to claim 8 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.