How N95 automatic mask machine works-1?
How N95 automatic mask machine works ?
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The N95 mask is generally made up of 3-6 layers of fabric (see the picture of the mask above for details), and it can be seen that this N95 mask machine
can make up to 6 layers of masks. When it's time to make a few layers of masks, put a few rolls of fabric on the shelf and leave the rest empty and you're done.
First, let's talk about the path of the fabric of N95 automatic mask machine
I.Each roll of fabric goes through the tensioning mechanism and then through the fabric roll support to the next process, which may sound confusing, but don't worry,
I've sorted out the path of the fabric a bit so it looks pretty straightforward.
Since the top and bottom fabric paths are the same, I just messed with the top part.
II. Look again at the institutions in this process.
1.Fabric roll placing frame
This mechanism is equipped with a drive motor to provide power.
2.Tensioning mechanism
The fabric is connected to the right side of the fabric roll, above we said: the fabric roll placement frame is driven, so the tension mechanism plays a role is:
to prevent the fabric appears too loose or too tight state. The principles are as follows.
First of all, the purpose of the counterweight block is to relieve the pressure of the two rollers on the left side of the rotating bar against the fabric, but not to
exceed their gravity, so that in the free state the tensioning mechanism will rotate in the direction of the two rollers.
(1) When the fabric roll begins to discharge, because the discharge speed is greater than the production feed speed, so the fabric will begin to loosen, and
the roller on the left side of the rotating rod began to fall due to gravity, until the induction plate is detected by the sensor, then the fabric roll drive motor stops,
in this process, the fabric has remained tense state.
(2) When the drive motor stops rotating, the feeding will make the fabric tighter and tighter, which will pull the roller on the left side of the rotating rod gradually
upward, until the induction plate is detected by the sensor above, the fabric roll begins to discharge.
3) Repeat the above process.
Above, that's how the tension mechanism works. Then we can see in the picture above that there is also a hard limit block, which is used to support the swivel
bar when the fabric holder corresponding to the tensioning mechanism is not in use, which is the following state.
Finally, with regard to the tightening up of institutions, there is one more point of doubt that one might have.
Why does it have to be tensioned mechanism, is it possible to remove it for N95 automatic mask machine
First of all, if there is no tensioning mechanism, the fabric roll needs to be directly connected to the subsequent process, and in that case, the following problems
are to be solved.
(1) In order to avoid the emergence of fabric too tight or too loose, the need to match the speed before and after, although the production speed of the process
is a certain, you can match the rotating speed of the fabric roll and the process, but the diameter of the fabric roll is not necessarily, when the diameter changes,
the discharge speed will also change, so it is very difficult to do the discharge and feeding speed match.
Thus, it is possible to see the role of the tensioning mechanism N95 automatic mask machine : when there is a shortage of material, it can be detected in time
and then discharge; when the discharge reaches a certain length, it can also be detected in time and then stop the discharge.
2.Fabric Support Frame
The fabric support mechanism is relatively simple, so I'll just put up a detailed picture of them and you'll see what I mean.
We all know that N95 masks are not like disposable masks, you can use the fold to wrap the nose line into it, so for N95 masks, only the outermost fabric from
the top, and then insert the nose line from between the fabric. That's why there's a layer of fabric that goes over it.
I. Order of work
1. The outermost layer and other fabrics, respectively, follow the path in the figure above into the embossing mechanism.
2.While the fabric is entering the embossing mechanism, the nose line loading mechanism pushes the nose line into the fabric.
II. Let's analyse the institutions again.
1.Feeding mechanism for N95 Mask Machine
The mechanism is designed to press several layers of fabric together, and the principle is actually this: the corrugated handle is screwed down, and then the slider
is spring-loaded.
First of all, let's look at the contact between the connecting shaft and the fixing block: there is a slot in the connecting shaft that snaps into the fixing block, so that
when the connecting shaft is rotated, it also has a lifting action.
The reason for this is to make it easy to put the fabric between the two rollers when changing rolls: just rotate the handle bar and the top rollers will rise up and put
the fabric directly in.
2.Nose beam line feeding & loading mechanism
(1) Let's first look at the power transmission of the mechanism N95 automatic mask machine , we can see that: the power in the above picture all comes from the
power shaft, and the power of the later process basically comes from this power shaft, about which we will talk last.
Power is transferred from the power shaft to the top to the cam splitter (the position of the cam splitter is marked, the drawing is wrong when opened, resulting in
the splitter not showing), and then the splitter transfers the power to the nose line loading mechanism and feeding mechanism respectively.
Then let's talk about what the original cam splitter was like in this place.
Two inlet shafts (the other one on the other side) and one outlet shaft, connected in the following way: the inlet shaft is connected to the power and feeder sprockets,
respectively; the outlet shaft is connected to the loading mechanism synchronizer wheel.
As can be seen from the above diagram, the two inlet shafts are actually one and the same, so the power is transferred directly to the feed sprocket, which moves
withoutintermittent rotation; while the synchronous wheel of the loading mechanism, which is connected to the outlet shaft, becomes intermittent rotation after the
internal mechanism of the splitter.
2.Nose beam line feeding mechanism for N95 mask machine
Let's start with the specific sequence of work.
→ The nose line exits the tray and passes through the guide/drive mechanism (the tray is unpowered and the nose line is pulled forward by the drive mechanism).
→ Æ After exiting the guide/drive mechanism, pass through the forehearth and enter the feed box.
→ After bringing the nose line into position, rotate the oscillating wheel just enough to touch the cutter to cut the nose line, which is then pushed into the fabric by
the loading mechanism.
→ Repeat the above process.
After the order is said and done, analyze the workings of the nose wire tray, guide/drive mechanism.
Nose bridge wire tray.
Nose wire wheel - rotating shaft - locking block - top rod - wire release plate, in fact, this set of mechanisms is to allow the guide / drive mechanism can pull out
the material when there is a lack of material; when there is a lot of material, the plate can be stopped in time, the specific working principle is as follows.
First of all, we have to know: the nose line is passed from below the nose line wheel, when the guide/drive mechanism is short of material, the nose line is tightened,
then the nose line wheel is lifted upward, driving the rotation axis rotation, the rotation axis drives the locking block clockwise movement, the top rod will be put down,
then the material plate can be rotated; when there is more material discharge, the nose line will be loose, then the nose line wheel will go down, the rest of the action
is the opposite of just now, finally, the top rod will be against the discharge plate, then the material plate stops rotating.
The above is how the nose bridge wire tray works for N95 automatic mask machine.
Then on to the guide/drive mechanism.
With regard to the lower roller adjustment mechanism, the principle and function of this is the same as that of the overfeed mechanism mentioned above, except that
the adjustment screw is first tightened by the top plate, which is then tightened by the spring placed in front of the roller slider (see figure below for the structure).
The N95 mask is generally made up of 3-6 layers of fabric (see the picture of the mask above for details), and it can be seen that this N95 mask machine
can make up to 6 layers of masks. When it's time to make a few layers of masks, put a few rolls of fabric on the shelf and leave the rest empty and you're done.
First, let's talk about the path of the fabric of N95 automatic mask machine
I.Each roll of fabric goes through the tensioning mechanism and then through the fabric roll support to the next process, which may sound confusing, but don't worry,
I've sorted out the path of the fabric a bit so it looks pretty straightforward.
Since the top and bottom fabric paths are the same, I just messed with the top part.
II. Look again at the institutions in this process.
1.Fabric roll placing frame
This mechanism is equipped with a drive motor to provide power.
2.Tensioning mechanism
The fabric is connected to the right side of the fabric roll, above we said: the fabric roll placement frame is driven, so the tension mechanism plays a role is:
to prevent the fabric appears too loose or too tight state. The principles are as follows.
First of all, the purpose of the counterweight block is to relieve the pressure of the two rollers on the left side of the rotating bar against the fabric, but not to
exceed their gravity, so that in the free state the tensioning mechanism will rotate in the direction of the two rollers.
(1) When the fabric roll begins to discharge, because the discharge speed is greater than the production feed speed, so the fabric will begin to loosen, and
the roller on the left side of the rotating rod began to fall due to gravity, until the induction plate is detected by the sensor, then the fabric roll drive motor stops,
in this process, the fabric has remained tense state.
(2) When the drive motor stops rotating, the feeding will make the fabric tighter and tighter, which will pull the roller on the left side of the rotating rod gradually
upward, until the induction plate is detected by the sensor above, the fabric roll begins to discharge.
3) Repeat the above process.
Above, that's how the tension mechanism works. Then we can see in the picture above that there is also a hard limit block, which is used to support the swivel
bar when the fabric holder corresponding to the tensioning mechanism is not in use, which is the following state.
Finally, with regard to the tightening up of institutions, there is one more point of doubt that one might have.
Why does it have to be tensioned mechanism, is it possible to remove it for N95 automatic mask machine
First of all, if there is no tensioning mechanism, the fabric roll needs to be directly connected to the subsequent process, and in that case, the following problems
are to be solved.
(1) In order to avoid the emergence of fabric too tight or too loose, the need to match the speed before and after, although the production speed of the process
is a certain, you can match the rotating speed of the fabric roll and the process, but the diameter of the fabric roll is not necessarily, when the diameter changes,
the discharge speed will also change, so it is very difficult to do the discharge and feeding speed match.
Thus, it is possible to see the role of the tensioning mechanism N95 automatic mask machine : when there is a shortage of material, it can be detected in time
and then discharge; when the discharge reaches a certain length, it can also be detected in time and then stop the discharge.
2.Fabric Support Frame
The fabric support mechanism is relatively simple, so I'll just put up a detailed picture of them and you'll see what I mean.
We all know that N95 masks are not like disposable masks, you can use the fold to wrap the nose line into it, so for N95 masks, only the outermost fabric from
the top, and then insert the nose line from between the fabric. That's why there's a layer of fabric that goes over it.
I. Order of work
1. The outermost layer and other fabrics, respectively, follow the path in the figure above into the embossing mechanism.
2.While the fabric is entering the embossing mechanism, the nose line loading mechanism pushes the nose line into the fabric.
II. Let's analyse the institutions again.
1.Feeding mechanism for N95 Mask Machine
The mechanism is designed to press several layers of fabric together, and the principle is actually this: the corrugated handle is screwed down, and then the slider
is spring-loaded.
First of all, let's look at the contact between the connecting shaft and the fixing block: there is a slot in the connecting shaft that snaps into the fixing block, so that
when the connecting shaft is rotated, it also has a lifting action.
The reason for this is to make it easy to put the fabric between the two rollers when changing rolls: just rotate the handle bar and the top rollers will rise up and put
the fabric directly in.
2.Nose beam line feeding & loading mechanism
(1) Let's first look at the power transmission of the mechanism N95 automatic mask machine , we can see that: the power in the above picture all comes from the
power shaft, and the power of the later process basically comes from this power shaft, about which we will talk last.
Power is transferred from the power shaft to the top to the cam splitter (the position of the cam splitter is marked, the drawing is wrong when opened, resulting in
the splitter not showing), and then the splitter transfers the power to the nose line loading mechanism and feeding mechanism respectively.
Then let's talk about what the original cam splitter was like in this place.
Two inlet shafts (the other one on the other side) and one outlet shaft, connected in the following way: the inlet shaft is connected to the power and feeder sprockets,
respectively; the outlet shaft is connected to the loading mechanism synchronizer wheel.
As can be seen from the above diagram, the two inlet shafts are actually one and the same, so the power is transferred directly to the feed sprocket, which moves
withoutintermittent rotation; while the synchronous wheel of the loading mechanism, which is connected to the outlet shaft, becomes intermittent rotation after the
internal mechanism of the splitter.
2.Nose beam line feeding mechanism for N95 mask machine
Let's start with the specific sequence of work.
→ The nose line exits the tray and passes through the guide/drive mechanism (the tray is unpowered and the nose line is pulled forward by the drive mechanism).
→ Æ After exiting the guide/drive mechanism, pass through the forehearth and enter the feed box.
→ After bringing the nose line into position, rotate the oscillating wheel just enough to touch the cutter to cut the nose line, which is then pushed into the fabric by
the loading mechanism.
→ Repeat the above process.
After the order is said and done, analyze the workings of the nose wire tray, guide/drive mechanism.
Nose bridge wire tray.
Nose wire wheel - rotating shaft - locking block - top rod - wire release plate, in fact, this set of mechanisms is to allow the guide / drive mechanism can pull out
the material when there is a lack of material; when there is a lot of material, the plate can be stopped in time, the specific working principle is as follows.
First of all, we have to know: the nose line is passed from below the nose line wheel, when the guide/drive mechanism is short of material, the nose line is tightened,
then the nose line wheel is lifted upward, driving the rotation axis rotation, the rotation axis drives the locking block clockwise movement, the top rod will be put down,
then the material plate can be rotated; when there is more material discharge, the nose line will be loose, then the nose line wheel will go down, the rest of the action
is the opposite of just now, finally, the top rod will be against the discharge plate, then the material plate stops rotating.
The above is how the nose bridge wire tray works for N95 automatic mask machine.
Then on to the guide/drive mechanism.
With regard to the lower roller adjustment mechanism, the principle and function of this is the same as that of the overfeed mechanism mentioned above, except that
the adjustment screw is first tightened by the top plate, which is then tightened by the spring placed in front of the roller slider (see figure below for the structure).