Vakuum pakkemaskine viden fra AZ

Vakuumpakkemaskine er et meget populært emballeringsudstyr til at fjerne luften i pakken for at opnå et "vakuum" miljø inde i pakken og varmeforsegle pakkerne for at holde "vakuum" status i en vis periode. Fødevareindustrien er det vigtigste felt, hvor vakuumpakningsteknologi spiller en rolle. I fødevareindustrien kan vakuumpakning effektivt forlænge fødevarernes holdbarhed og lette opbevaring, cirkulation og salg af fødevarer. Vakuumpakningsteknologi er også meget almindelig i emballering af medicinsk udstyr, som bruges til at isolere og hæmme bakterier og sikre medicinsk udstyrs aseptiske egenskaber. Tekstilindustrien bruger også ofte vakuumpakningsteknologi til at pakke tekstiler for at opnå effekten af ​​fugtsikker, insektsikker og produktvolumenkompression.

Brugen af ​​kommerciel (industriel kvalitet) vakuumpakkemaskine er så omfattende, at det er nødvendigt for os at forstå den relaterede viden, herunder indkøb, installation, hovedkonstruktionskomponenter og arbejdsprocesser for maskinerne osv. Hvis du er en støvsuger packaging machine pro eller hellere vil kontakte os for relaterede oplysninger, så spring venligst denne artikel over til Produkt side, hvor detaljerne om de vakuumpakkemaskiner, vi leverer, er anført.

vakuumpakningsmaskine

There are many types of vacuum packaging machines. In terms of machine structure and workflow, semi-automatic and fully automatic vacuum packaging machines are completely different. In this article, we will take the dobbeltkammer vakuum emballeringsmaskine as an example to present the knowledges of the semi-automatic vacuum packing machines. Please understand the following contents are for reference only, machines from different manufacturers might be different in many ways.

Sådan køber du en vakuumpakkemaskine

1. Beslut om vakuumemballage er den rigtige emballeringsmetode til dit produkt. Vakuumpak ikke friske grøntsager og frugter uden forbehandling, da anaerob respiration vil fremskynde fordærv. Pulverprodukter kræver specialdesignede vakuumpakkemaskiner. Sprøde produkter kræver nitrogenfyldning for at forhindre klem og smadring. Tilberedt kød og færdigretter skal steriliseres efter vakuumpakket.

2. Lær produktdimension og pakkedimension at kende. Semi-automatiske vakuumpakkemaskiner bruges til at pakke produkter i færdiglavede vakuumposer. Det er vigtigt at afklare vakuumposens dimension og pakkedimension (længde*bredde*højde, efter at produktet er lagt i posen) for at bestemme vakuumemballeringsmaskinens dimension.

3. Emballageproduktivitetskrav (pakker/time). Du har måske brug for en lille maskine til lille produktivitet, eller større maskine til større produktivitet, måske endda flere sæt større maskiner. Vakuumpakkemaskinens produktivitet bestemmes af pakkedimension og maskinstørrelse.

4. Find en professionel producent og leverandør af vakuumpakkemaskiner. Fordele:

  • Du får professionel rådgivning fra professionel leverandør
  • Garanteret maskinkvalitet
  • Direkte kommunikation, hurtige svar på spørgsmål, sparer tid og energi
  • Garanteret eftersalgsservice
  • Flere muligheder for at optimere maskinen, fleksibelt design
  • Perfekt kombination af maskinkvalitet og pris

5. Giv relaterede oplysninger til maskinleverandøren for at få et tilbud:

  • Hvilket produkt skal pakkes
  • Produkt dimension
  • Emballeringsdimension
  • Produktets stand før/efter vakuumpakning
  • Produktivitetskrav
  • Specifikationer for vakuumposer, der skal bruges
  • Lokal strømforsyning
  • Betaling og leveringsmåde

6. Forhandle pris og vilkår, underskriv kontrakt, foretag betaling og vent på at modtage vakuumpakkemaskinen.

hvordan man køber en vakuumpakkemaskine

Installation af vakuumpakkemaskine

Efter at have modtaget den købte vakuumpakkemaskine, bør du først kontrollere, om den ydre pakkeboks er beskadiget. Hvis det er tilfældet, skal du først tage billeder for at kommunikere med sælgeren for at løse problemet. Vi bruger normalt stærke desinfektionsfrie trækasser til at pakke vakuumpakkemaskinerne for at sikre, at maskinerne ikke bliver beskadiget. Men i ekstreme tilfælde, hvis maskinen er beskadiget, skal sælgeren kontaktes med det samme. Generelt vil sælgeren ved forsendelse købe en søforsikring for at sikre, at tabet af varerne bliver kompenseret.

Hvis alt går OK, er næste trin installationen.

  • Vakuumpakkemaskine skal installeres på et fladt, fast og rent underlag, fast og fast.
  • Arbejdsmiljøet for vakuumpakkemaskinen skal have en passende temperatur, lav luftfugtighed og lavt saltindhold for at reducere sandsynligheden for, at maskinen bliver korroderet. Selvom maskinen er lavet af SUS304, som er anti-korrosion, er de elektriske dele mere tilbøjelige til at ruste. Til fiske- og skaldyrsforarbejdningsanlæg, hvor der er høj luftfugtighed og salt, anbefales det stærkt at forberede tørreudstyr for at reducere fugt- og saltindholdet i luften for at forlænge vakuumpakkemaskinens levetid.
  • Tilslutning til strømforsyning. Kommercielle vakuumpakkemaskiner kræver normalt 3-faset elektricitet. Den mest almindeligt anvendte spænding af 3-faset elektricitet i verden er 220V, 380V, 400V, 415V, 50/60Hz. Sørg for, at din leverandør har tilpasset de elektriske dele i henhold til dine lokale strømforsyningsspecifikationer.
  • Cooling water connection. This is only applied to the belt-type continuous vacuum packaging machines. The cooling water must be clean and able to cool down the temperature of heating elements after each heat-seal cycle is completed.
kommerciel vakuumpakkemaskine

Working process of (double chamber) vacuum packaging machine

Step 1, Preset vacuum time, heat-seal time, cooling time, heating temperature from the control panel. The value of these parameters shall be set according to vacuum chamber volume, vacuum pouch material and thickness.

Step 2, Put the products into færdiglavede vakuumposer, make sure the cleaness of the bag’s sealing area, avoid oil and water contamination to ensure the sealing strength and prevent leakage. Different food products require vacuum pouches made of different materials, check denne artikel til reference.

Vacuum packaging first step put products into the premade vacuum pouches

Step 3, Put the vacuum pouches onto the working plate of vacuum packaging machine, sealing area of vacuum pouches right on the silicone strip, use the metal bar to press the sealing area.

dobbeltkammer vakuum emballeringsmaskine

Step 4, Vacuum and seal. Press the vacuum chamber cover for 2-3 seconds (for double chamber vacuum packaging machines with automatic chamber cover swing function, it’s not necessary to press the chamber cover manually), grænseafbryder will be triggered to start the vacuum pump automatically. The air in the vacuum chamber as well as in vacuum pouches will be evacuated, vacuum meter will show the real-time vacuum degree. The vacuum and seal step details:

  1. Vacuum. Meanwhile the heating wire is heated
  2. When the vacuum period reaches the preset vacuum time, vacuum pump stops working
  3. Air bag inflates to push the heating element (heating wire, heating isolation cloth) down to press the sealing area of vacuum pouches. The vacuum pouches are heated and sealed for a few seconds
dobbeltkammer vakuum emballeringsmaskine

Step 5, Magnetic valve opens to allow air flow back into the vacuum chamber, heating element bouce back to position, vacuum chamber cover slightly bounces up automatically

Step 6, Repeat the cycle in another vacuum chamber

Main components of vacuum packaging machine

1. The vacuum chamber. The bottom part of vacuum chamber is the working plate, which is fixed. The bottom vacuum chamber is the chamber cover, which swings alternatively between the 2 sides of the double chamber vacuum packing machine. There is a silicone sealing gasket mounted in the side groove of the chamber cover to prevent air leakage during vacuum process.

It’s important to make sure the vacuum chamber is strong enough to resist the powerful negative pressure during vacuum pump works to evacuate air. So vacuum chamber usually is made of SUS304 stainless steel 3-4 mm, reinforced construction prevents deformation caused by negative pressure.

silicone sealing gasket of vacuum packing machine
The silicone sealing gasket of a single chamber vacuum packing machine

2. The vacuum chamber cover open, move and balancing facility. The chamber cover of double chamber vacuum packing machine moves from one side to another during each packaging cycle, with the help of 4 connection rods. The four connecting rods are fixed on two long shafts, and there are tension spring shift forks on the long shafts. The lower part of the two tension springs is positioned on the frame, and the upper part is positioned on the tension spring shift forks to balance the operation gravity. The two long shafts are positioned by two sets of bearing seats, and the upper parts of the four connecting rods are also inlaid with miniature bearings, so the left and right displacement is very easy. When the vacuum is started, a little pressure is applied, and it can be opened automatically after the air return is completed. The four connecting rods supporting the displacement of the upper vacuum chamber, the front and rear two on each long axis must be kept parallel, and the left and right two sets of connecting rods must also be relatively parallel to ensure that the upper vacuum chamber is the same as the lower vacuum chamber at any position on the left or right. Keep parallel, otherwise, the upper and lower vacuum chambers cannot be kept parallel, and the operating pressure will increase significantly, and even the vacuum cannot be established normally in severe cases.

connecting rods of double chamber vacuum packaging machine
Connecting rods of double chamber vacuum packaging machine

3. Heat-sealing and printing devices. Heating assembly is composed of a phenolic rod to support the whole heating system, a sealing wire (nichrome) for heating and sealing, a PTFE cloth to prevent vacuum bags burning, a airbag to press sealing wire, and other devices to install and fix the elements. Heating assembly is installed on the top vacuum chamber cover. For printing, there are molds for characters (numbers and alphabets) that can be installed in the silicone stripes.

vacuum packaging machine heating sealing assembly
vacuum packaging machine heating sealing assembly
sealing wire for vacuum packaging machine
PTFE heating isolation cloth for vacuum packaging machine
air bag of vacuum packaging machine
vacuum packaging machine silicone sealing strips

4. Vakuumsystem. The vacuum system of double chamber vacuum packaging machine includes vacuum pump, vacuum meter, magnetic valves, and vacuum pipes. Vacuum system is the heart part of a vacuum packing machine, it’s important to use powerful and durable vakuumpumpe. We usually use China top brand vacuum pump or Busch vacuum pump. Vakuummåler indicates the vacuum degree of vacuum chamber in real time so you can check the vacuum status any time. Two vacuum magnetic valves are usually used, one is a ¢5 two-position three-way magnetic valve, and its main function is to control the work of the upper and lower positions of the hot-press sealing device. The other is a ¢15 two-position two-way magnetic valve. Its main function is to open the passage after vacuum and heat sealing, so that the atmosphere returns to the vacuum chamber, otherwise the vacuum chamber cannot be opened.

Busch vacuum pump used on our vacuum packaging machines
Busch R5-RA0100F is usually used on small-medium vacuum packaging machines, including LDZ600/2S, LDZ700/2S

5. Electrics, including time relays, transformers, and contactors. We can also supply vacuum packaging machine with PLC and touch screen control upon request.

6. Vacuum packaging machine frame construction. Most industrial-grade vacuum packing machines are designed to stand on floor, so a solid frame construction is important to support the whole system for very long time (5-10 years). The frame and base shall be made of reinforced SUS304 stainless steel, and sturdy castors shall be equipped for each moving of the machine.

Daily maintenance of vacuum packaging machine

After we purchase a vacuum packing machine, we certainly want to use if for as long time as possible. The durability of a vacuum packaging machine is of course determined by it’s quality, but daily maintenance of also important. Effective maintenace can reduce machine downtime, prevent unpredictable failures, prolong machine’s service life.

  1. Vacuum packaging machine must be operated and maintained by trained person
  2. Clean vacuum packaging machine before and after each working shift
  3. Keep watching the oil level and oil color of vacuum pump from the observation window. If the oil level goes below the 1/3 part of the observation window, of color of oil goes black, you should refill oil or replace oil. Usually the vacuum pump oil shall be replaced after 500-2000 working hours, depending on the working environment.
  4. Lubricate the connection rod and springs periodically
  5. Keep an eye on sealing wires, PTFE heating isolation cloth and time relays

Fejlfinding

The double chamber vacuum packaging machine is a conventional packaging equipment with a relatively simple structure, easy to use and maintain. Generally, problems can be solved by users themselves.

1. Vacuum pump doesn’t work/ loud noise

  • The power supply phase is missing or the fuse is broken. Solution: check the power supply line or replace the fuse.
  • The vacuum pump is reversed. Solution: power commutation.
  • The main contact point of the IC is in poor contact. Solution: adjust or replace it with a new one.
  • The ISJ normally closed contact is in poor contact. Solution: adjust or replace it with a new one.
  • The vacuum pump does not stop overtime. The reason is that the time relay does not work. Solution: repair or replace it.

2. Low vacuum degree or no vacuum

  • The vacuum pump oil is too little or polluted. Solution: add oil or change the oil.
  • The vacuum pump smokes or leaks. Solution: clean the vacuum pump, replace the exhaust filter, and check the back-pressure valve.
  • The vacuum pipe system is not sealed tightly. Solution: check the vacuum pipes, repair or replace leakage points.
  • The magnetic valve 2DT iron core is stuck and cannot be reset. Solution: overhaul or cleaning.
  • Bad quality vacuum pouches
  • Magnetic valve 1DT doesn’t work. Solution: Repair or replace

3. Not sealing or bad sealing quality

  • Sealing wire broken
  • Air bag broken
  • Inappropriate vacuum/sealing time
  • The heat sealing circuit is loose or broken.
  • The main contact of 2C is in poor contact
  • 2C doesn’t work

■ Forespørgsel >>


WhatsApp/WeChat:+ 8618654721858


Få et tilbud


Udfyld venligst dit navn
Dit firmanavn
Din gyldige e -mail -adresse
Dit mobiltelefonnummer til WhatsApp/WeChat
Fortæl os venligst dine anmodninger i detaljer

Scan for at tilføje WeChat

kontakt Yide Machinery

Scan for at sende WhatsApp -besked

kontakt Yide Machinery
Rul til top