CN207827499U - Film take-up based on traction path compensation - Google Patents
Film take-up based on traction path compensation Download PDFInfo
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- CN207827499U CN207827499U CN201721761061.5U CN201721761061U CN207827499U CN 207827499 U CN207827499 U CN 207827499U CN 201721761061 U CN201721761061 U CN 201721761061U CN 207827499 U CN207827499 U CN 207827499U
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- collapser
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- film bubble
- traction path
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Abstract
The utility model discloses a kind of film take-up based on traction path compensation, according to the conveying direction of film bubble, die head, the first collapser and the second collapser are set gradually from the bottom to top, carry-over pinch rolls are set to the side of the second collapser, first collapser and the second collapser are arranged in a mutually vertical manner, and the first collapser is perpendicular to the folding direction of film bubble to the folding direction of film bubble and the second collapser.Its method is film bubble in distraction procedure, the first collapser and the second collapser by being mutually perpendicular to arrange successively, when film bubble passes through the first collapser, the traction path of each point is unequal on the same circumference of film bubble, pass through being vertically arranged for the second collapser, so that the traction path of each point on the same circumference of film bubble is compensated, finally obtains identical traction path.The utility model principle is simple, it can be achieved that each point traction path on the same circumference of film bubble is identical, and cooling situation is identical, can effectively avoid since traction path is different, film fold caused by cooling condition difference.
Description
Technical field
The utility model is related to inflation film manufacturing technology field, more particularly to a kind of film based on traction path compensation
Wrap-up.
Background technology
Film take-up is one of the important procedure in film line, and winding process has direct shadow to film surface quality
It rings, if winding process is incomplete, it may appear that phenomena such as film take-up is irregular, fold.
In cast film production, film can cause uneven surface, therefore before winding due to the effect of drawing tension,
Need to flattening device be set to film, to improve the quality of production of film article, as shown in Figure 1, generally being flattened at present using roller
Method, film 6 by roller 7 when (in figure arrow direction be film conveying direction), adjust the practical convexity and reality of roller
Amount of deflection can prevent film from generating wrinkle in operation and be unfolded the requirement stretched, and meet certain transverse thickness difference.
And blown film production in, before film take-up, caused by the difference of packaging film feeding path film each point cooling not enough or
It is uneven be generate fold the main reason for one of, film by collapser from cylindrical shape flatten at two layers fitting flat membrane process
In, the distance that each point passes through in film bubble is different.The effect of collapser is mainly stable bubble and gradually will be columnar thin
Film is folded into planar.But collapser, during flattening film bubble, each point on the same circumference of film bubble can not with collapser
Synchronous contact, therefore after each point cooling on the same circumference of film bubble has and first has, cause film shrunk inconsistent, be easy to form wrinkle
Line, especially with good cooling results Water cooling type collapser when, which becomes apparent.In addition, film bubble is unstable, trembling
When, the wrinkle that film bubble generates also can be even more serious.
In order to overcome the above problem, if when passing through collapser, the distance that each point path is passed through on film bubble circumference is complete
Exactly the same, cooling condition is consistent, it is possible to serious wrinkle be avoided to generate.Currently, having using the setting rolling on person handwriting board flashboard
The scheme of driving wheel reduces the gap number between person handwriting board flashboard and film, to reduce by lengthening the length of the axis of rolling
There is the chance of fold in film.But this method, used scroll wheel is complicated, and application cost is high.Also have and pass through design
Ad hoc control system accurately controls the tension in packaging film feeding wrapup procedure, and this method can effectively reduce film fold, but
Be there is also control system complexity, it is of high cost the shortcomings of.
Therefore, different for film bubble each point path caused by the traction winding of current blown film, it is thin caused by inhomogeneous cooling
The problems such as film surface fold, a kind of novel film take-up method and device of exploitation are of great significance.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of film based on traction path compensation
Wrap-up, the principle of device is simple, can effectively avoid since traction path is different, film pleat caused by cooling condition difference
Wrinkle.
The technical solution of the utility model is：A kind of film take-up based on traction path compensation, including die head, the
One collapser, the second collapser and carry-over pinch rolls, according to the conveying direction of film bubble, die head, the first collapser and the second collapser by
Under it is supreme set gradually, carry-over pinch rolls are set to the side of the second collapser, and the first collapser and the second collapser be arranged in a mutually vertical manner,
First collapser is perpendicular to the folding direction of film bubble to the folding direction of film bubble and the second collapser.
First collapser includes four the first guide plates and two the first guiding axis, and two the first guiding axis are set respectively
In the both sides of film bubble, the both sides up and down of each first guiding axis are respectively provided with first guide plate, four guide plate cloth in " X " shape
It sets.
The parallel setting of described two first guiding axis, film bubble when gap between two the first guiding axis by being rolled over
Folded, the first collapser is parallel with the axis direction of the first guiding axis to the folding direction of film bubble.
Second collapser includes two the second guide plates and two the second guiding axis, and two the second guiding axis are set respectively
It is set on the downside of the both sides of film bubble, each second guiding axis there are one the second guide plate, two guide plates are in inverted " V " shape.
The parallel setting of two the second guiding axis, film bubble by being folded when gap between two the second guiding axis,
Second collapser is parallel with the axis direction of the second guiding axis to the folding direction of film bubble.
Distance between second guiding axis to die head exit is the traction path of film bubble.
In above structure, the gap in the first collapser between two the first guiding axis should be slightly bigger than two in the second collapser
Gap between a second guiding axis, so, the air being located in the film bubble of the tubulose below the first collapser can pass through two
Gap between a first guiding axis makes the film bubble after two the first guiding axis fold be still within inflation state.
The above-mentioned film take-up based on traction path compensation is in use, its principle is：Traction of the film bubble in carry-over pinch rolls
In the process, two collapsers (i.e. above-mentioned first collapser and the second collapser) for being mutually perpendicular to arrangement are passed sequentially through, film bubble is worked as
When by the first collapser, the time of contact inconsequent of each point and the first collapser on the same circumference of film bubble, cooling has
After first having, and due to second vertically arranged collapser on the same circumference of film bubble each point traction path compensating action,
Therefore, when film bubble at from die head exit to by the second collapser this during, due to path compensation, film bubble is in same circle
Each point traction path on week is identical, and cooling situation is identical, can effectively avoid since traction path is different, cooling condition difference is made
At film fold.Wherein, the concrete principle for drawing path compensation is as follows：When film bubble passes through the first collapser, film bubble is same
The time of contact inconsequent of each point and the first collapser on circumference, what film bubble was passed through from inflation state to folded state
Path length is also inconsistent, and the film bubble unit traction path contacted with the first guide plate midpoint (is assumed to be Lm) to be longer than and the
The film bubble unit traction path of one guide plate edge contact (is assumed to be Ls).And inflation is again passed by and is arranged vertically film bubble again
The second collapser when, pass through and draw path length (L when the first collapserm) film bubble unit and the edge of the second collapser connect
It touches, when being again folded by, the traction path passed through is Ls, by drawing path (L when the first collapsers) shorter film bubble list
Member is contacted with the midpoint of the second collapser, and when being again folded by, the traction path passed through is Lm.By in same point twice
Traction path is overlapped respectively, and by the compensating action of the second collapser, film bubble is from complete inflation state, by the first herringbone
When reaching completely folded state after plate and the second collapser, the traction path length of each point on the same periphery of film bubble is complete
Consistent.
A kind of film take-up method based on traction path compensation can be realized by above-mentioned apparatus, and film bubble is in distraction procedure
In, successively by being mutually perpendicular to the first collapser and the second collapser of arrangement, when film bubble passes through the first collapser, film bubble is same
The traction path of each point is unequal on circumference, by being vertically arranged for the second collapser, makes leading for each point on the same circumference of film bubble
Diameter of leading the way is compensated, and finally obtains identical traction path.
Wherein, the second collapser is specially to the compensation process in the traction path of each point on the same circumference of film bubble：Work as film bubble
When by the first collapser, each point on the same circumference of film bubble is asynchronous with the contact of the first collapser, it is cooling have first have after；When
When film bubble is using the second collapser, due to the second collapser and the perpendicular setting of the first collapser, so same for film bubble
Each point on circumference, the sum of the traction path length of the second collapser and the traction path length of the first collapser equal, film bubble
After the first collapser and the second collapser, identical cooling condition is finally obtained.Should during, due to the second collapser with
The perpendicular setting of first collapser is made so the second collapser plays compensation to the traction path of each point on the same circumference of film bubble
With, therefore, when film bubble at from die head exit to by the second collapser this during, due to path compensation, film bubble is same
Each point traction path on circumference is identical, and cooling situation is identical, can effectively avoid since traction path is different, cooling condition is different
Caused by film fold.
The film bubble is in inflation state by the front and back of the first collapser.That is, film bubble passes through the first collapser
Carry out it is cooling for the first time after, be not to be directly folded into planar submitting, but inflation forms cylindric again, then passes through second
After collapser carries out second of cooling, it is just folded into planar submitting.
The utility model compared with the existing technology, has the advantages that：
Based on the film take-up method and device of traction path compensation, principle is simple, and method is that film bubble was being drawn
Cheng Zhong passes sequentially through two vertically arranged collapsers, when film bubble passes through the first collapser, each point on the same circumference of film bubble
Be in contact with it inconsequent, it is cooling have first have after, and since second vertically arranged collapser is on the same circumference of film bubble
Each point traction path compensating action, therefore, when film bubble from mouth mold exit to by the second collapser this during,
Due to path compensation, each point traction path on the same circumference of film bubble is identical, and cooling situation is identical, can effectively avoid due to traction
Path is different, film fold caused by cooling condition difference.
It is had the advantages of simple structure and easy realization based on the film take-up of traction path compensation, it is only necessary to draw road in film bubble
In diameter, two collapsers are arranged vertically, film bubble is allowed to pass through the two vertically arranged collapsers successively, simple structure but can be with
Realize being obviously improved for cooling effect；It is not required to other devices and control system, part is few, simple in structure.The present apparatus is using vertically
The compensating action that path is drawn to film bubble of two collapsers of arrangement can eliminate traction when being applied to inflation film production
In wrapup procedure, each point traction path is different on the same circumference of film bubble, caused by cooling condition it is different, lead to film surface pleat
Wrinkle, to keep bubble thickness uniform, film surface is bright and clean smooth.
In addition, the film take-up method and device application range based on traction path compensation is wider, blown suitable for most of
Film produces, and is conducive to improve film quality.
Description of the drawings
Fig. 1 is used the principle schematic of roller flattening method by the prior art.
Fig. 2 is the structural schematic diagram based on the film take-up of traction path compensation.
Fig. 3 is the dimensional structure diagram of film take-up shown in Fig. 2.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail, but the embodiment of the utility model
It is without being limited thereto.
Embodiment
A kind of film take-up based on traction path compensation of the present embodiment, as shown in Figure 1 or 2, including die head 1,
First collapser 2, the second collapser 3 and carry-over pinch rolls 4, according to the conveying direction of film bubble 5, die head, the first collapser and the second people
Letter stencil is set gradually from the bottom to top, and carry-over pinch rolls are set to the side of the second collapser, and the first collapser and the second collapser mutually hang down
Straight setting, the first collapser are perpendicular to the folding direction of film bubble to the folding direction of film bubble and the second collapser.
Wherein, the first collapser includes four the first guide plate 2-1 and two the first guiding axis 2-2, two first guiding
Axis is respectively arranged on the both sides of film bubble, and the both sides up and down of each first guiding axis are respectively provided with first guide plate, four guide plates
Arrangement in " X " shape.The parallel setting of two the first guiding axis, film bubble when gap between two the first guiding axis by being rolled over
Folded, the first collapser is parallel with the axis direction of the first guiding axis to the folding direction of film bubble.
Second collapser includes two the second guide plate 3-1 and two the second guiding axis 3-2, two the second guiding axis difference
Set on the both sides of film bubble, set on the downside of each second guiding axis there are one the second guide plate, two guide plates are in inverted " V "
Shape.The parallel setting of two the second guiding axis, film bubble when gap between two the second guiding axis by being folded, the second people
Letter stencil is parallel with the axis direction of the second guiding axis to the folding direction of film bubble.
Distance between second guiding axis to die head exit is the traction path of film bubble.
In above structure, the gap in the first collapser between two the first guiding axis should be slightly bigger than two in the second collapser
Gap between a second guiding axis, so, the air being located in the film bubble of the tubulose below the first collapser can pass through two
Gap between a first guiding axis makes the film bubble after two the first guiding axis fold be still within inflation state.
The above-mentioned film take-up based on traction path compensation is in use, its principle is：Film bubble in distraction procedure, according to
The secondary collapser (i.e. above-mentioned first collapser and the second collapser) for being mutually perpendicular to arrangement by two, when film bubble is by the first
When letter stencil, the time of contact inconsequent of each point and the first collapser on the same circumference of film bubble, it is cooling have first have after, and by
In second vertically arranged collapser therefore film bubble is worked as to the compensating action in the traction path of each point on the same circumference of film bubble
At from die head exit to by the second collapser this during, due to path compensation, each point of film bubble on the same circumference
It is identical to draw path, cooling situation is identical, can effectively avoid since traction path is different, film pleat caused by cooling condition difference
Wrinkle.Wherein, the concrete principle for drawing path compensation is as follows：It is each on the same circumference of film bubble when film bubble passes through the first collapser
The time of contact inconsequent of point and the first collapser, film bubble is from inflation state to folded state paths traversed length
Inconsistent, the film bubble unit traction path contacted with the first guide plate midpoint (is assumed to be Lm) to be longer than and the first guiding edges of boards
The film bubble unit traction path contacted at (is assumed to be Ls).And inflation again passes by vertically arranged second herringbone to film bubble again
When plate, by drawing path length (L when the first collapserm) film bubble unit contacted with the edge of the second collapser, rolled over again
When folded, the traction path passed through is Ls, by drawing path (L when the first collapsers) shorter film bubble unit and the second herringbone
The midpoint of plate contacts, and when being again folded by, the traction path passed through is Lm.By the path of the traction twice difference in same point
It is overlapped, by the compensating action of the second collapser, film bubble is from complete inflation state, by the first collapser and the second herringbone
When reaching completely folded state after plate, the traction path length of each point on the same periphery of film bubble is completely the same.
It can realize that a kind of film take-up method based on traction path compensation, film bubble are led carry-over pinch rolls by above-mentioned apparatus
During drawing, successively by being mutually perpendicular to the first collapser and the second collapser of arrangement, when film bubble passes through the first collapser, film
The traction path for steeping each point on same circumference is unequal, by being vertically arranged for the second collapser, makes each on the same circumference of film bubble
The traction path of point is compensated, and finally obtains identical traction path.
Wherein, the second collapser is specially to the compensation process in the traction path of each point on the same circumference of film bubble：Work as film bubble
When by the first collapser, each point on the same circumference of film bubble is asynchronous with the contact of the first collapser, it is cooling have first have after；When
When film bubble is using the second collapser, due to the second collapser and the perpendicular setting of the first collapser, so same for film bubble
Each point on circumference, the sum of the traction path length of the second collapser and the traction path length of the first collapser equal, film bubble
After the first collapser and the second collapser, identical cooling condition is finally obtained.Should during, due to the second collapser with
The perpendicular setting of first collapser is made so the second collapser plays compensation to the traction path of each point on the same circumference of film bubble
With, therefore, when film bubble at from die head exit to by the second collapser this during, due to path compensation, film bubble is same
Each point traction path on circumference is identical, and cooling situation is identical, can effectively avoid since traction path is different, cooling condition is different
Caused by film fold.
Film bubble is in inflation state by the front and back of the first collapser.That is, film bubble is carried out by the first collapser
It is not to be directly folded into planar submitting, but inflation forms cylindric again, then passes through the second herringbone after cooling for the first time
After plate carries out second of cooling, it is just folded into planar submitting.
As described above, the utility model can be realized preferably, above-described embodiment is only the preferable implementation of the utility model
Example is not used for limiting the scope of the utility model；It is i.e. all according to equivalent changes and modifications made by the utility model content,
All covered by the utility model claims range claimed.
Claims (6)
1. the film take-up based on traction path compensation, which is characterized in that including die head, the first collapser, the second herringbone
Plate and carry-over pinch rolls, according to the conveying direction of film bubble, die head, the first collapser and the second collapser are set gradually from the bottom to top, are led
Pick-up roll is set to the side of the second collapser, and the first collapser and the second collapser are arranged in a mutually vertical manner, and the first collapser is to film bubble
Folding direction and the second collapser it is perpendicular to the folding direction of film bubble.
2. the film take-up according to claim 1 based on traction path compensation, which is characterized in that first herringbone
Plate includes that four the first guide plates and two the first guiding axis, two the first guiding axis are respectively arranged on the both sides of film bubble, Mei Ge
The both sides up and down of one guiding axis are respectively provided with first guide plate, four guide plate arrangements in " X " shape.
3. the film take-up according to claim 2 based on traction path compensation, which is characterized in that described two first
The parallel setting of guiding axis, film bubble when gap between two the first guiding axis by being folded, and the first collapser is to film bubble
Folding direction it is parallel with the axis direction of the first guiding axis.
4. the film take-up according to claim 1 based on traction path compensation, which is characterized in that second herringbone
Plate includes that two the second guide plates and two the second guiding axis, two the second guiding axis are respectively arranged on the both sides of film bubble, Mei Ge
It is set on the downside of two guiding axis there are one the second guide plate, two guide plates are in inverted " V " shape.
5. the film take-up according to claim 4 based on traction path compensation, which is characterized in that two second guiding
The parallel setting of axis, film bubble when gap between two the second guiding axis by being folded, folding of second collapser to film bubble
Folded direction is parallel with the axis direction of the second guiding axis.
6. the film take-up according to claim 4 based on traction path compensation, which is characterized in that described second is oriented to
Distance between axis to die head exit is the traction path of film bubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761061.5U CN207827499U (en) | 2017-12-14 | 2017-12-14 | Film take-up based on traction path compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761061.5U CN207827499U (en) | 2017-12-14 | 2017-12-14 | Film take-up based on traction path compensation |
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| Publication Number | Publication Date |
|---|---|
| CN207827499U true CN207827499U (en) | 2018-09-07 |
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ID=63387684
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721761061.5U Active CN207827499U (en) | 2017-12-14 | 2017-12-14 | Film take-up based on traction path compensation |
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| Country | Link |
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| CN (1) | CN207827499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108082990A (en) * | 2017-12-14 | 2018-05-29 | 华南理工大学 | Film take-up method and device based on traction path compensation |
-
2017
- 2017-12-14 CN CN201721761061.5U patent/CN207827499U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108082990A (en) * | 2017-12-14 | 2018-05-29 | 华南理工大学 | Film take-up method and device based on traction path compensation |
| CN108082990B (en) * | 2017-12-14 | 2024-01-30 | 华南理工大学 | Film winding method and device based on traction path compensation |
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