[Watt line technology] Find out 9 reasons, the corrugation will never be flattened

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Time of issue:2015-09-15
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[Watt line technology] Find out 9 reasons, the corrugation will never be flattened

(Summary description)ReasonsforCorrugatedFlattenedandCountermeasures 1.Reason:Corrugatedrollersarenotparallel(corrugatedinclined). Measures:Adjustthecorrugatedrollertobeparallel. 2.Reason:thecorrugatedheightwaslowatthebeginning. Measures:Replacethecorrugatedroller. 3.Reason:Afterthecorrugationisformed,itiscrushedagain. Measures:Check,adjustorrepairallbitepointsthatmaycauseflatteningofthecorrugation;papermachineorpaperfeedgateorturn-downroller,cross-cutknifepaperfeedroller,dryendcoatingorpinchtearingbelt,tachometerwheelThecutterisoutofcontrol,orthelinespeedoftheentiretileisoutofcontrol,thehotplateisnotstraight,theconveyorliftingdeviceisnotfullyupanddown,thereisdirtonthehotplate,thepaperplatenrollerorhotplatepressuresystemisnotparallel,orthepositionisimproperlyadjusted,andthebitepointThepaperrollsoftheold-stylepaperwebtensioneranddouble-sidedmachinegluingmachinearenotparallel,ortheappliedpressureistoolarge,andthesingle-sidedpaperwebontheflyoverhastensionandliftingconveyorproblems. 4.Reason:toomuchtensiononthecorepaperroll. Measures:Reducethebrakingoftheoriginalpaperholder;checkthepositionofthepreprocessor,dry,repairorreplacethepre-processordriveengine. 5.Reason:Becausethespraydevicespraystoomuchsteam,thecorepaperistoowet. Measures:Reducetheamountofsteamsprayedonthecorepaper. 6.Reason:Thegluingdevicecausesthecorrugationofanybitingpointtocollapse. Measures:Reducetheamountofglueonthesingle-sidedpaperboardoroneofthemunderthepremiseofensuringgoodadhesionandnowarpage;thehumidityofthecorepaperrollistoohigh,reducetheamountofsteamsprayorturnoffthespraydeviceorreplacethecorepaperPaperroll. 7.Reason:uneventensionoftheupperandlowerconveyorbeltsofthedouble-sidedmachine(obliquecorrugated). Measures:Keepthespeedoftheconveyorbeltconsistent. 8.Reason:lowflatandflatcorrugated. Measures:Checkthefactorsthatcausethecorrugationtocollapseafterthecorrugationisformed,andcheckthecauseofthecorrugationtilt. 9.Reason:Thepressureresistanceofthecorepaperistoolow. Measures:Replacethecorepaperrollanddiscusswiththebasepapersupplier. 2.Reducethestockofbasepaper,savingmorethan600,000yuanperyear Ifasmallfactoryuses2,000tonsofpaperpermonthandhas4,000tonsofbasepaperinstock,itmeansthatthestockpaperturnoverrateis2,whichmeansthatthebasepaperwillbeusedinthewarehousefor2monthsafteritisreturnedtothefactory.Thatis,howmuchistheinventoryfundspressed?Theaveragesellingpriceof4000tonsofrawpaperis2700tons,whichis:10.8millionyuan.Iftheinventoryisreducedto2,000tonsofstockpaper,yourcompanywillrelease5.4millionyuan,whichiscalculatedaccordingto1%interestonconventionalfinancingcosts.Save54,000/month.Annualsavingsof648,000yuan. Itcanbeseenfromthissmallfactorythatthecontrolofthestockpaperturnoverrateisveryimportant.Nowtherearesomeexcellentcompaniesthathavedone15daysaweek,with4,000tonspermonthandonly2,000tonsininventory.Howdidtheydoit?Next,let’ssharethe“cheats”thatreducethestockofbasepaper. "Cheats"toreducethestockofrawpaper 1.Makeastockofrawpaperandaforecasttableofdemandforrawpaper Thebasepaperinspectionpersonnelcollecttheactualamountofbasepaperused(months)asareferencebasisforfuturepurchaseofbasepaper,andincreasetheaccuracyofdemandforecasting. Takingthemonthlyusageasareference,itwillignorethedifferencebetweenthemaximumandminimumvaluesofactualusage.Therefore,thetotalusageofeachquarteriscalculated,andthendividedbythenumberofmonths,thedataobtainedismoreobjective.Duetochangesincustomersandordertypes,theusagescaleisre-createdeveryquarter. 2.Whenreceivingtheoriginalpaper,markthestoragedate Whenunloading,usethewoodpenbooktowritethedateofthewarehousefortheoperatortoimplementthematerialfirstinfirstoutprincipleofturnoveroperation. 3.Simplifythebasepapermaterialandpapertype Thepaperwebandmaterialtypesaretoocomplicated.Unpopularmaterial,ifthecustomerdoesnothavethispaperwidthandmaterialrequirementsinthefuture,itisnoteasytoconvertthebasepaper,anditiseasytocauseinventory.Reducethenumberofunpopularpaperwebsandmaterials.(Undertheorderofunpopularmaterials,itisoftennecessarytomatchthefullwidthofthepapermakingmachine,resultinginalargeincreaseinunnecessarypaperwebs)Negotiatewiththesalesstafftomatchwiththeexistingcustommaterialstomeetcustomerneeds. 4.Salesprovidereliablebasepaperdemandforecast Theestimateddemandforbasepaperisbasedontheaveragemonthlyusageinthepast.Whenthesalesstaffundertakesorclosesthelargeorder,itshouldprovidetherelevantdemandforecastpurchasesoastocontrolthepurchasevolumeoftheoriginalpaper.Theestimatedamountoftheoriginalpaperprovidedbythesalesstaff,afterafollow-upinvestigation,foundthattherewasoftenagapbetweentheactualamountandtheactualusage,whichwaslikelytocauseadelay. 5.Convertingandresellingthebasepaper Transferstagnantbasepapertopaperthatdoesnotrequirepaperqualityintheorder.Iftheoriginalpaperthatthefactorycannotusecanbeconsideredforresaletoothermanufacturers.

Categories:Industry News
Author:
Origin:
Time of issue:2015-09-15
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Reasons for Corrugated Flattened and Countermeasures

1. Reason: Corrugated rollers are not parallel (corrugated inclined).

Measures: Adjust the corrugated roller to be parallel.

2. Reason: the corrugated height was low at the beginning.

Measures: Replace the corrugated roller.

3. Reason: After the corrugation is formed, it is crushed again.

Measures: Check, adjust or repair all bite points that may cause flattening of the corrugation; paper machine or paper feed gate or turn-down roller, cross-cut knife paper feed roller, dry end coating or pinch tearing belt, tachometer wheel The cutter is out of control, or the line speed of the entire tile is out of control, the hot plate is not straight, the conveyor lifting device is not fully up and down, there is dirt on the hot plate, the paper platen roller or hot plate pressure system is not parallel, or the position is improperly adjusted, and the bite point The paper rolls of the old-style paper web tensioner and double-sided machine gluing machine are not parallel, or the applied pressure is too large, and the single-sided paper web on the flyover has tension and lifting conveyor problems.

4. Reason: too much tension on the core paper roll.

Measures: Reduce the braking of the original paper holder; check the position of the preprocessor, dry, repair or replace the pre-processor drive engine.

5. Reason: Because the spray device sprays too much steam, the core paper is too wet.

Measures: Reduce the amount of steam sprayed on the core paper.

6. Reason: The gluing device causes the corrugation of any biting point to collapse.

Measures: Reduce the amount of glue on the single-sided paperboard or one of them under the premise of ensuring good adhesion and no warpage; the humidity of the core paper roll is too high, reduce the amount of steam spray or turn off the spray device or replace the core paper Paper roll.

7. Reason: uneven tension of the upper and lower conveyor belts of the double-sided machine (oblique corrugated).

Measures: Keep the speed of the conveyor belt consistent.

8. Reason: low flat and flat corrugated.

Measures: Check the factors that cause the corrugation to collapse after the corrugation is formed, and check the cause of the corrugation tilt.

9. Reason: The pressure resistance of the core paper is too low.

Measures: Replace the core paper roll and discuss with the base paper supplier.

2. Reduce the stock of base paper, saving more than 600,000 yuan per year

If a small factory uses 2,000 tons of paper per month and has 4,000 tons of base paper in stock, it means that the stock paper turnover rate is 2, which means that the base paper will be used in the warehouse for 2 months after it is returned to the factory. That is, how much is the inventory funds pressed? The average selling price of 4000 tons of raw paper is 2700 tons, which is: 10.8 million yuan. If the inventory is reduced to 2,000 tons of stock paper, your company will release 5.4 million yuan, which is calculated according to 1% interest on conventional financing costs. Save 54,000 / month. Annual savings of 648,000 yuan.

It can be seen from this small factory that the control of the stock paper turnover rate is very important. Now there are some excellent companies that have done 15 days a week, with 4,000 tons per month and only 2,000 tons in inventory. How did they do it? Next, let ’s share the “cheats” that reduce the stock of base paper.

"Cheats" to reduce the stock of raw paper

1. Make a stock of raw paper and a forecast table of demand for raw paper

The base paper inspection personnel collect the actual amount of base paper used (months) as a reference basis for future purchase of base paper, and increase the accuracy of demand forecasting.

Taking the monthly usage as a reference, it will ignore the difference between the maximum and minimum values of actual usage. Therefore, the total usage of each quarter is calculated, and then divided by the number of months, the data obtained is more objective. Due to changes in customers and order types, the usage scale is re-created every quarter.

2. When receiving the original paper, mark the storage date

When unloading, use the wood pen book to write the date of the warehouse for the operator to implement the material first in first out principle of turnover operation.

3. Simplify the base paper material and paper type

The paper web and material types are too complicated. Unpopular material, if the customer does not have this paper width and material requirements in the future, it is not easy to convert the base paper, and it is easy to cause inventory. Reduce the number of unpopular paper webs and materials. (Under the order of unpopular materials, it is often necessary to match the full width of the papermaking machine, resulting in a large increase in unnecessary paper webs) Negotiate with the sales staff to match with the existing custom materials to meet customer needs.

4. Sales provide reliable base paper demand forecast

The estimated demand for base paper is based on the average monthly usage in the past. When the sales staff undertakes or closes the large order, it should provide the relevant demand forecast purchase so as to control the purchase volume of the original paper. The estimated amount of the original paper provided by the sales staff, after a follow-up investigation, found that there was often a gap between the actual amount and the actual usage, which was likely to cause a delay.

5. Converting and reselling the base paper

Transfer stagnant base paper to paper that does not require paper quality in the order. If the original paper that the factory cannot use can be considered for resale to other manufacturers.

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