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Packet sealer.

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Welcoming everyone the inhabitants of our sites on this wonderful site !!!! I’ve recently got the edge of how I needed a LAYER OF PACKAGES and in the stores, they are mostly professional and expensive: rage: wait a long time with aliexpress. I looked on the internet and there all sorts of .... awkward awkward masters. So I appeal to all of you with a request to help assemble such a homemade product !!! Thanks in advance!
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22 commentary
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technician san
the soldering iron blade should be as smooth as possible, the edges slightly rounded
I sawed a groove at the end of a thick sting, inserted a wheel from a lighter and rolled without any newspapers. The seam turned out quickly, reliable, wide, could be cut in the middle of the seam. smile
+1
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Quote: technician san
cellophane
It is hardly necessary to seal plastic bags, most likely plastic bags.
Quote: technician san
do not lay down
But I absolutely agree with this.))
technician san 0
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I forgot to write, the soldering iron blade should be as smooth as possible to the maximum, the edges slightly rounded, you don’t need to put the newspaper on the cellophane, as when soldering with an ordinary iron, carry the sting “saber blade” along the ruler
technician san 0
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a question about the sealing machine, and answers about the exact meaning of the words. in three words a 40-watt soldering iron, an unnecessary sting will be sharpened under a Turkish saber not sharp of course. the thickness of the "blade" is 1-2 mm. the temperature of the sting is selected experimentally. one Moldovan guy I don’t remember his name, a very good site is described
0
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“I have it in blood,” I don’t know how blood is, and your knowledge of electricity is purely everyday, at the level of the school curriculum.
"I ... will not write 400 \ 230." - because you do not know what voltage is in the electrical network.
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Quote: Ivan_Pokhmelev
Speak correctly, but for some reason you are not guided by this rule.Once again, I strongly advise you to familiarize yourself with the definition of what current and voltage sources are, as well as with their main parameters.

Ivan, I have it in "blood", I do not climb on the Internet for this (you even express your thought in words, as it says there), I do not confuse 230 and 380 (and you do not know this without an Internet), and I won’t write 400 \ 230.
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Maybe 380 volts?
Yes, to blame, it was, of course, meant 400/230 V.
To make such statements, you need to understand this, and not stupidly lick everything from the Internet in a row.
Speak correctly, but for some reason you are not guided by this rule. Once again, I strongly advise you to familiarize yourself with the definition of what current and voltage sources are, as well as with their main parameters.
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Quote: Ivan_Pokhmelev
A three-phase electric network of alternating voltage 230 V 50 Hz is also, of course, a voltage source.

Maybe 380 volts?

Quote: Ivan_Pokhmelev
It is advisable for you, first, to familiarize yourself with the definition of what current and voltage sources are, as well as their main parameters, before making "profound" statements. :(

To make such statements, you need to understand this, and not stupidly lick everything from the Internet in a row. In him, too, often such “umachi” spread their fantasies, posing as truth.
Good luck in the knowledge of elementary school physics. : sweat:
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A three-phase electric network of alternating voltage 230 V 50 Hz is also, of course, a voltage source.
Current, as I understand you, is there completely absent?

It is advisable for you, first, to familiarize yourself with the definition of what current and voltage sources are, as well as their main parameters, before making "profound" statements. :(
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Quote: Ivan_Pokhmelev
The household electric network of a single-phase alternating voltage of 230 V 50 Hz is a voltage source.

A three-phase household? Current, as I understand you, is there completely absent?
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The household electric network of a single-phase alternating voltage of 230 V 50 Hz is a voltage source.
-1
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Ivan_Pokhmelev,
Complete nonsense, I'm sorry. Question: - "Is the household electric network a source of voltage or current?"
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There are two types of electrical energy sources: voltage sources and current sources. At the voltage source, the voltage does not depend on the load, and at the current source - the current.
The laboratory source of "current and voltage" is so called because it has adjustments for both current and voltage.

Not therefore, but because it can work in two modes: a voltage source and a current source, in reality there is also a transitional mode.
0
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blush "CURRENT", cannot be without tension. And the voltage can be without current. In the home outlet - "High voltage source." This is just a conditional name, since there can be no "work" without activation (current "flowing"). Any current source is, first of all, a voltage source at the poles of the source, and then its ability to issue a rated current. For example, a welding transformer produces a voltage of 30-60 volts, and the current can develop up to 200 amperes or more. The battery is 12-24 volts, and the current is up to 200 amperes. At the same time, alkaline batteries at the same voltage can not give such a current. The voltage at the picture tube of the TV is 18-25 thousand volts, and the current is a fraction of an ampere. Like lighters. As can not be sources of current and voltage, each on its own. The laboratory source of "current and voltage" is so called because it has adjustments for both current and voltage.
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As a rule, power sources are voltage sources, but there are also a large number of current sources, or voltage and current sources. In particular, the correct laboratory source is a voltage and current source. Also current sources are thermoelectric generators and photovoltaic sources (solar panels).
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I will express how I did in due time. Nichrome d ~ 0.25 ... 0.3 mm. At the ends of the clamps for the screw with the transition to a flexible copper wire (mounting). It is connected to the output of the power (step-down) transformer 220/36 V. At the input of this lower. Tr-ra voltage is supplied from LATRA. And already LATR is connected to the network (220 V). Adjust the degree of glow of the nichrome wire LATROM. It should be noted that when heated, the wire lengthens significantly ... You can pull (align) manually or using a spring
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He gives everything, then he is a power source smile
+1
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blush"
And what does he give out the power source? Isn't stress really? Or something different?
+1
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First, nichrome length is not selected by voltage.

I don’t understand, but where did you see me writing this? It seems to have clearly written: "The main task is to choose a thread (cross-section, length) for a power source", there is no word "voltage" here ...

Why? The length of the nichrome will be the same as the size of the packet (adhesive). And the heating temperature needs to be regulated and selected experimentally (depends on the type of material itself (film)). That is, you need a voltage regulator with divisions.

But isn’t it easier to select nichrome (cross-section, (we know the length for the packet)) for the source (current)? And do not suffer with regulators. I have an old Soviet sealing machine and its device is very simple: trance, nichrome under it and a button under the cover - That's it! Well, there is still a switch for 220. It glues lousy, it can be overexposed, but the gluing time can be calculated empirically.

You can do it and as you said - it will be an ideal apparatus, but I don’t know what level of knowledge the author of the question has and proposed the simplest option with nichrome.
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The task is very vague: it is not clear what packages, what is the estimated volume of sealing. The simplest thing is a soldering iron with a sharpened sting and a fluoroplastic tape.
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Not everything is as simple as you painted here. First, nichrome length is not selected by voltage.
Second, the button also does not roll one.
Why? The length of the nichrome will be the same as the size of the packet (adhesive). And the heating temperature needs to be regulated and selected experimentally (depends on the type of material itself (film)). That is, you need a voltage regulator with divisions.
The button can be pressed in different ways, the hour is uneven and cut off. A time relay is required. And these are the main requirements of the simplest (working), and not toys. And the rest (as you have already noticed) is up to your imagination.
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The basis of such a device is a nichrome thread and nutrition. The main task is to choose a thread (cross-section, length) for the power source, so that the temperature of its glow would be sufficient for gluing polyethylene. If the temperature is higher, then it will just cut.

And everything else is the case, the pressure is enough for imagination. You also need to make the power button, which presses the clamp at the time of gluing.

There are two homemade products on the site, true for cutting, but the principle is the same:

Nichrome jigsaw or cutter
Styrofoam Cutter

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