CN114789550B - Air ring for film blowing machine - Google Patents
Air ring for film blowing machine Download PDFInfo
- Publication number
- CN114789550B CN114789550B CN202210714267.1A CN202210714267A CN114789550B CN 114789550 B CN114789550 B CN 114789550B CN 202210714267 A CN202210714267 A CN 202210714267A CN 114789550 B CN114789550 B CN 114789550B
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- air
- air outlet
- ring
- gap
- air inlet
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- 238000010096 film blowing Methods 0.000 title abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to the technical field of air rings, in particular to an air ring for a film blowing machine, which comprises a spiral case and a plurality of air outlet rings, wherein the spiral case is provided with an air inlet and an air inlet duct, an air outlet gap is arranged between every two adjacent air outlet rings, the air inlet duct and the air outlet gap are sequentially communicated, the air inlet duct is provided with a plurality of air guide fins inclined towards the inner side of the air inlet duct corresponding to the air inlet, air guide gaps are arranged between every two adjacent air guide fins or the air guide fins and the inner side of the air inlet duct form the air guide gaps, airflow enters the air inlet duct along the air inlet, and the airflow passes through the air guide fins inclined towards the inner side of the air inlet duct, the airflow rotates along the inner side of the outer wall of the spiral case and forms a vortex fluid, and the vortex fluid uniformly flows out of the air outlet gap of each air outlet ring. According to the invention, the air flows along the inner side of the outer wall of the volute in a rotating manner through the arrangement to form a vortex, so that the speed of the air flow flowing to the air outlet gaps can be reduced, the air quantity loss is reduced, the air flows to each air outlet gap uniformly, and the air outlet is natural and uniform.
Description
Technical Field
The invention relates to the technical field of air rings, in particular to an air ring for a film blowing machine.
Background
The traditional wind ring is provided with 4-8 air inlets so as to achieve the purpose of uniform air inlet. However, the uniformity (flow, drift diameter, curvature, length, etc.) of a plurality of air inlet pipes is difficult to ensure, so that the inconsistent air inlet amount is inevitable. And the structure is complicated, and the field arrangement and maintenance are complicated, such as a steady flow air ring disclosed in the Chinese patent document No. CN 2020216414008.
Some traditional wind rings are designed with single wind inlets, and the single wind inlets avoid the defects. But it is very difficult to realize uniform air outlet on the circumference of the air outlet.
Disclosure of Invention
The invention aims to provide an air ring for a film blowing machine, which can uniformly blow air out so as to overcome the defects in the prior art.
The air ring for the film blowing machine comprises a volute and a plurality of air outlet rings, wherein the volute is provided with an air inlet and an air inlet duct, an air outlet gap is formed between every two adjacent air outlet rings, the air inlet duct and the air outlet gap are sequentially communicated, the air inlet duct is provided with a plurality of air guide fins inclined towards the inner side of the air inlet duct corresponding to the air inlet, a first air guide gap is formed between every two adjacent air guide fins, a second air guide gap is formed between each air guide fin and the inner side of the air inlet duct, airflow enters the air inlet duct along the air inlet duct and passes through the air guide fins inclined towards the inner side of the air inlet duct, the airflow rotates along the inner side of the outer wall of the volute and forms a vortex fluid, the vortex fluid uniformly flows out of the air outlet gap of each air outlet ring, the air inlet of the air inlet duct is provided with the plurality of air guide fins, the speed of the airflow flowing to the air outlet gap can be reduced, the air volume loss is reduced, and the air uniformly flows to each air outlet gap, and the air outlet is natural and uniform.
The included angle between each air guide fin and the inner side of the air inlet duct is 3-6 degrees, and air flow is forced to cling to the inner side of the air duct.
In the direction of the air flowing to the air outlet gap, the gap between each air guide fin and the inner side of the air inlet duct is gradually decreased, and the air flow is forced to cling to the inner side of the air duct, so that the air flow rotates and flows to form a vortex.
The air duct areas of the first air guide gap and the second air guide gap gradually decrease along with the length and the stroke of the air guide fins, and the air flow is further forced to cling to the inner side of the outer wall of the volute. The distance between the outer wall of the volute and the center of the air guide fin is gradually reduced to be in a vortex shape, and the section of the air channel is gradually reduced along with the lengthening of the flow of the air guide fin.
The air outlet rings comprise a first inner ring and a second inner ring which are positioned in the volute, the first inner ring and the second inner ring are arranged in a stacked mode, an air inlet gap is arranged between the first inner ring and the volute, a labyrinth type zigzag air inlet gap is arranged between the first inner ring and the second inner ring, and the air inlet duct, the air inlet gap and the zigzag air inlet gap are sequentially communicated. The labyrinth zigzag air inlet gap is beneficial to slowing down the speed of air flow, and further realizes uniform air outlet.
The plurality of air outlet rings further comprise a first air outlet ring and a second air outlet ring, the first air outlet ring is assembled with the first inner ring, the second air outlet ring is assembled with the second inner ring, the second air outlet ring is located on the outer side of the first air outlet ring, a first air outlet gap is formed between the first air outlet ring and the second air outlet ring, and the bent air inlet gap is communicated with the first air outlet gap.
A second air outlet gap is arranged between the first inner ring and the first air outlet ring, the first air outlet ring is provided with a first air vent, and the bent air inlet gap or the first air outlet gap is communicated with the second air outlet gap through the first air vent.
The plurality of air outlet rings further comprise a third air outlet ring assembled with the first inner ring and a fourth air outlet ring assembled with the first inner ring or the volute, an air outlet channel is arranged between the fourth air outlet ring and the first inner ring, the fourth air outlet ring is partially positioned on the outer side of the third air outlet ring, a third air outlet gap is arranged between the third air outlet ring and the fourth air outlet ring, the air outlet channel is communicated with the third air outlet gap, a second vent hole is arranged at the position of the first inner ring corresponding to the bent air inlet gap, and the bent air inlet gap is communicated with the air outlet channel through the second vent hole.
And a bent air outlet communicated with the third air outlet gap is arranged between the third air outlet ring and the fourth air outlet ring, and the axes of the bent air outlet and the third air outlet gap are intersected to form an included angle A.
The included angle A is 50-65 degrees.
The invention has the following beneficial effects:
the air inlet of the air inlet duct is provided with a plurality of air guide fins, so that inlet air flows along the inner side of the outer wall of the volute in a rotating mode to form a vortex, the speed of airflow flowing to air outlet gaps can be reduced, air volume loss is reduced, air flows to each air outlet gap uniformly, and air outlet is natural and uniform.
The included angle between each air guide fin and the inner side of the air inlet duct is 3-6 degrees, and air flow is forced to cling to the inner side of the air duct.
In the direction of the air flowing to the air outlet gap, the gap between each air guide fin and the inner side of the air inlet duct is gradually decreased, and the air flow is forced to cling to the inner side of the air duct, so that the air flow rotates and flows to form a vortex.
The air duct areas of the first air guide gap and the second air guide gap are gradually decreased along with the length stroke of the air guide fins, and the air flow is further forced to be tightly attached to the inner side of the outer wall of the volute. The distance between the outer wall of the volute and the center of the air guide fin is gradually reduced to be in a vortex shape, and the section of the air channel is gradually reduced along with the lengthening of the flow of the air guide fin.
Through the improvement, the air outlet of the air ring is uniform finally, and the thickness of the film blown out by the air ring is uniform.
Drawings
Fig. 1 is a schematic perspective view of a wind ring according to an embodiment of the present invention.
Fig. 2 is an internal structure view of the wind ring volute according to an embodiment of the present invention.
Fig. 3 is a schematic perspective sectional view of a wind ring according to an embodiment of the invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is an enlarged view of fig. 3 at B.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1 to 5, an air ring for a film blowing machine includes a spiral case 3 and a plurality of air outlet rings, the spiral case 3 is provided with an air inlet 1 and an air inlet duct 2, an air outlet gap is provided between two adjacent air outlet rings, the air inlet 1, the air inlet duct 2 and the air outlet gap are sequentially communicated, the air inlet duct 2 is provided with a plurality of air guide fins 4 inclined to the inner side of the air inlet duct 2 corresponding to the air inlet 1, a first air guide gap 5 is provided between two adjacent air guide fins 4, a second air guide gap is formed between the air guide fins 4 and the inner side of the air inlet duct 2, an air flow enters the air inlet duct 2 along the air inlet 1, and the air flow passes through the air guide fins 4 inclined to the inner side of the air inlet duct 2, the air flow rotates along the inner side of the outer wall of the spiral case 3 to form a vortex fluid, and the vortex fluid uniformly flows out from the air outlet gap of each air outlet ring.
Although the present embodiment has only one air inlet 1, the present embodiment is an improvement on the existing wind ring design having only one air inlet 1. But is also applicable to a multi-inlet wind ring.
The included angle between each air guide fin 4 and the inner side of the air inlet duct 2 is 3-6 degrees.
In the direction of the air flowing to the air outlet gap, the gap between each air guiding fin 4 and the inner side of the air inlet duct 2 is gradually decreased progressively by each air guiding fin 4.
The air duct areas of the first air guiding gap 5 and the second air guiding gap gradually decrease with the length and the stroke of the air guiding fins 4.
The air outlet rings comprise a first inner ring 6 and a second inner ring 7 which are positioned in the volute 3, the first inner ring 6 and the second inner ring 7 are arranged in a stacked mode, an air inlet gap 8 is arranged between the first inner ring 6 and the volute 3, a labyrinth type zigzag air inlet gap 9 is arranged between the first inner ring 6 and the second inner ring 7, and the air inlet duct 2, the air inlet gap 8 and the zigzag air inlet gap 9 are sequentially communicated.
The plurality of air outlet rings further comprise a first air outlet ring 10 and a second air outlet ring 11, the first air outlet ring 10 is assembled with the first inner ring 6, the second air outlet ring 11 is assembled with the second inner ring 7, the second air outlet ring 11 is located on the outer side of the first air outlet ring 10, a first air outlet gap 13 is arranged between the first air outlet ring 10 and the second air outlet ring 11, and the bent air inlet gap 9 is communicated with the first air outlet gap 13.
Be equipped with second air-out clearance 12 between first inner ring 6 and the first ring 10 that goes out, first ring 10 that goes out is equipped with first ventilation hole 14, and tortuous air inlet clearance 9 or first air-out clearance 13 communicate second air-out clearance 12 through first ventilation hole 14.
The plurality of air outlet rings further comprise a third air outlet ring 15 assembled with the first inner ring 6 and a fourth air outlet ring 16 assembled with the first inner ring 6 or the volute 3, an air outlet channel 17 is arranged between the fourth air outlet ring 16 and the first inner ring 6, the fourth air outlet ring 16 is partially positioned outside the third air outlet ring 15, a third air outlet gap 18 is arranged between the third air outlet ring 15 and the fourth air outlet ring 16, the air outlet channel 17 is communicated with the third air outlet gap 18, a second vent hole 20 is arranged at the position of the first inner ring 6 corresponding to the bent air inlet gap 9, and the bent air inlet gap 9 is communicated with the air outlet channel 17 through the second vent hole 20.
A bent air outlet 21 communicated with the third air outlet gap 18 is arranged between the third air outlet ring 15 and the fourth air outlet ring 16, and the axes of the bent air outlet 21 and the third air outlet gap 18 are intersected to form an included angle A.
The included angle A is 50-65 degrees.
In the present embodiment, a step positioning matching portion is provided between the second inner ring 7 and one end face of the volute 3, and the second inner ring 7 and the volute 3 are assembled through the step positioning matching portion.
In the present embodiment, a step positioning matching portion is provided between the fourth air outlet ring 16 and the other end surface of the volute 3, the fourth air outlet ring 16 is assembled with the volute 3 through the step positioning matching portion, and the first inner ring 6 is assembled with the fourth air outlet ring 16.
The other wind rings can be assembled by adopting the step positioning matching parts and then fixed by bolts, and the details are not described.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides an air ring for inflation film manufacturing machine, includes spiral case (3) and a plurality of air outlet ring, spiral case (3) are equipped with air intake (1) and air inlet duct (2), are equipped with the air-out clearance between two adjacent air outlet rings, and air intake (1), air inlet duct (2), air-out clearance communicate its characterized in that in proper order: the air inlet duct (2) is provided with a plurality of air guide fins (4) inclined towards the inner side of the air inlet duct (2) corresponding to the air inlet (1), a first air guide gap (5) is arranged between every two adjacent air guide fins (4), a second air guide gap is formed between each air guide fin (4) and the inner side of the air inlet duct (2), airflow enters the air inlet duct (2) along the air inlet (1), and flows through the air guide fins (4) inclined towards the inner side of the air inlet duct (2), the airflow rotates and flows along the inner side of the outer wall of the volute (3) to form vortex fluid, and the vortex fluid uniformly flows out of the air outlet gap of each air outlet ring;
the included angle between each air guide fin (4) and the inner side of the air inlet duct (2) is 3-6 degrees;
in the direction of the air flowing to the air outlet gap of each air guide fin (4), the gap between each air guide fin (4) and the inner side of the air inlet duct (2) is gradually decreased;
the air duct areas of the first air guide gaps (5) and the second air guide gaps are gradually decreased along with the length and the stroke of the air guide fins (4);
the air outlet rings comprise a first inner ring (6) and a second inner ring (7) which are positioned in the volute (3), the first inner ring (6) and the second inner ring (7) are arranged in a stacked mode, an air inlet gap (8) is arranged between the first inner ring (6) and the volute (3), a labyrinth type zigzag air inlet gap (9) is arranged between the first inner ring (6) and the second inner ring (7), and the air inlet duct (2), the air inlet gap (8) and the zigzag air inlet gap (9) are sequentially communicated;
the air outlet rings further comprise a first air outlet ring (10) and a second air outlet ring (11), the first air outlet ring (10) is assembled with the first inner ring (6), the second air outlet ring (11) is assembled with the second inner ring (7), the second air outlet ring (11) is positioned on the outer side of the first air outlet ring (10), a first air outlet gap (13) is arranged between the first air outlet ring (10) and the second air outlet ring (11), and the bent air inlet gap (9) is communicated with the first air outlet gap (13);
a second air outlet gap (12) is arranged between the first inner ring (6) and the first air outlet ring (10), the first air outlet ring (10) is provided with a first air vent (14), and the zigzag air inlet gap (9) or the first air outlet gap (13) is communicated with the second air outlet gap (12) through the first air vent (14);
the plurality of air outlet rings further comprise a third air outlet ring (15) assembled with the first inner ring (6) and a fourth air outlet ring (16) assembled with the first inner ring (6) or the volute (3), an air outlet channel (17) is arranged between the fourth air outlet ring (16) and the first inner ring (6), part of the fourth air outlet ring (16) is positioned at the outer side of the third air outlet ring (15), a third air outlet gap (18) is arranged between the third air outlet ring (15) and the fourth air outlet ring (16), the air outlet channel (17) is communicated with the third air outlet gap (18), a second air vent hole (20) is arranged at the position of the first inner ring (6) corresponding to the zigzag air inlet gap (9), and the zigzag air inlet gap (9) is communicated with the air outlet channel (17) through the second air vent hole (20);
a bent air outlet (21) communicated with the third air outlet gap (18) is arranged between the third air outlet ring (15) and the fourth air outlet ring (16), and the axes of the bent air outlet (21) and the third air outlet gap (18) are intersected to form an included angle A;
the included angle A is 50-65 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714267.1A CN114789550B (en) | 2022-06-23 | 2022-06-23 | Air ring for film blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714267.1A CN114789550B (en) | 2022-06-23 | 2022-06-23 | Air ring for film blowing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114789550A CN114789550A (en) | 2022-07-26 |
| CN114789550B true CN114789550B (en) | 2022-10-21 |
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ID=82463221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210714267.1A Active CN114789550B (en) | 2022-06-23 | 2022-06-23 | Air ring for film blowing machine |
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| Country | Link |
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| CN (1) | CN114789550B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454119Y (en) * | 2000-12-21 | 2001-10-17 | 大连合成纤维研究所 | High-damper ring-shape air-blowing cooling apparatus |
| CN204019981U (en) * | 2014-07-30 | 2014-12-17 | 瑞安市奥翔包装机械有限公司 | Inflation film manufacturing machine vane |
| ES2847400T3 (en) * | 2018-05-22 | 2021-08-03 | Kdesign Gmbh | Cooling device with a cooling gas ring and a flow control device |
| CN208324199U (en) * | 2018-06-21 | 2019-01-04 | 长春市吉源生物科技有限公司 | A kind of vane component for inflation film manufacturing machine |
| CN211074663U (en) * | 2019-10-12 | 2020-07-24 | 青岛威宝塑胶制品有限公司 | Plastic film blowing machine |
| CN214137318U (en) * | 2020-09-09 | 2021-09-07 | 廊坊市安次区智顺塑包有限公司 | Automatic adjustment system for automatic measurement of width of casing film |
| CN214521935U (en) * | 2021-01-05 | 2021-10-29 | 广州市富金塑料制品有限公司 | Adjustable air pressure air ring blowout control device |
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2022
- 2022-06-23 CN CN202210714267.1A patent/CN114789550B/en active Active
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| Publication number | Publication date |
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| CN114789550A (en) | 2022-07-26 |
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