CN109624165A - A kind of vacuum tank for cast film machine - Google Patents
A kind of vacuum tank for cast film machine Download PDFInfo
- Publication number
- CN109624165A CN109624165A CN201910006526.3A CN201910006526A CN109624165A CN 109624165 A CN109624165 A CN 109624165A CN 201910006526 A CN201910006526 A CN 201910006526A CN 109624165 A CN109624165 A CN 109624165A
- Authority
- CN
- China
- Prior art keywords
- area
- homogenating plate
- plenum
- vacuum tank
- plenum area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000013022 venting Methods 0.000 claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000002459 sustained effect Effects 0.000 claims description 3
- 230000003828 downregulation Effects 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000000265 homogenisation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/50—Shaping under special conditions, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Abstract
The present invention discloses a kind of cast film machine vacuum tank, including vacuum chamber, aspiration channel, sealing vacuum box plate and bump joint；A homogenating plate is equipped in vacuum chamber, homogenating plate is equipped with the first, second, and third plenum area；First plenum area is arranged in the both ends of homogenating plate and is provided with waist type ventilation hole, and the middle part of homogenating plate is arranged in the second plenum area, third venting area, uniformly offers circular vent in the second plenum area and third venting area；The ratio of the ventilation hole circulation area of first, second, and third plenum area of homogenating plate is 1:5:1.The ventilation hole that the present invention passes through setting different shape and pitch on homogenating plate, the homogenization of vacuum chamber interior air-flow wind speed and pressure can be achieved during air draught, uniform and stable negative pressure is formed in aspiration channel mouth, improve vacuum tank interior air-flow turbulence level, energy consumption is effectively reduced, the negative regulation and uniformity for improving negative pressure air draft apparatus, ensure that the qualification rate of film.
Description
Technical field
The present invention relates to casting films technical field of processing equipment, refer in particular to a kind of vacuum tank for cast film machine.
Background technique
In CPP/CPE casting films production process, in order to avoid the air that casting roller rotation generates brings film and chilling roller into
Between, bubble is generated, cooling effect is reduced, influences the Forming Quality of film, negative-pressure air-suction system is set usually above chilling roller.
Vacuum tank is the important component of negative-pressure air-suction system, and two pieces of homogenating plates, air-flow are usually arranged in currently used vacuum tank
Circulation area is small, and air-flow in vacuum tank domestic demand by 2 180 ° of steerings, have that structure is complicated, turbulent air flow degree is high, pressure
Big disadvantage is lost in power, and the ventilation hole on homogenating plate is evenly distributed, and reduces the uniformity of air draught nozzle negative pressure.
Summary of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned prior art, a kind of cast film machine vacuum of optimization is provided
Case, the vacuum box structure is simple, can effectively improve turbulent air flow degree, reduces pressure loss to greatest extent, improves negative pressure
The negative regulation and uniformity of air intake device, ensure that the qualification rate of film.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of cast film machine vacuum tank, including vacuum
Cabinet, aspiration channel, sealing vacuum box plate and bump joint；The vacuum chamber includes taper box portion and square box portion
Point, it is characterised in that: one piece of homogenating plate is equipped in the square box, the homogenating plate leads to equipped with the first plenum area, second
Wind area and third venting area；First plenum area is arranged on the both ends of homogenating plate and uniformly offers waist type ventilation hole, third
The middle part of homogenating plate is arranged in plenum area, and the region between the first plenum area and third venting area is the second plenum area；Second is logical
The identical circular vent of diameter is uniformly offered in wind area and third venting area；First plenum area of homogenating plate, second are led to
The ratio of the ventilation hole circulation area in wind area and third venting area is 1:5:1.
Further, the first plenum area, the second plenum area and third venting area of the homogenating plate account for homogenating plate area
Ratio is 1:6:2.
Further, the round hole arrangement mode of second plenum area is by 45 ° of wrong rows；The circle in the third venting area
Hole arrangement mode is by 26.6 ° of wrong rows.
Further, the waist-shaped hole of first plenum area is arranged by Z-type mistake.There are two types of the length dimensions of the waist-shaped hole,
The waist-shaped hole size of same row is identical, and the waist-shaped hole size of adjacent two rows is not identical.
Further, the aspiration channel is uniformly arranged on vacuum tank backboard, aspiration channel center and bump joint
Center is on sustained height.The sealing vacuum box plate is detachably arranged in vacuum chamber both ends.
The beneficial effects of the present invention are: vacuum tank of the invention, which only needs to be arranged one piece of homogenating plate, can be realized vacuum chamber
The homogenization of interior air-flow wind speed and pressure, airflow direction does not have to that any 90 ° of turnovers occur during air draught, improves gas in vacuum tank
Turbulence level is flowed, blower pressure loss consumption is effectively reduced, improves the negative regulation and uniformity of negative pressure air draft apparatus, guarantees
The qualification rate of film.
Detailed description of the invention
The present invention is described in further detail with reference to the accompanying drawing.
Fig. 1 is structure sectional view of the invention.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of homogenating plate of the present invention.
Fig. 4 is the partial schematic diagram of homogenating plate of the present invention.
Specific embodiment
As shown in Figure 1, 2, a kind of cast film machine vacuum tank, including vacuum chamber 1, aspiration channel 4, sealing vacuum box plate 6
With bump joint 5；The vacuum chamber 1 includes taper box portion 2 and square box part 3, wherein the square box 3
It is interior to be fixed with one piece of homogenating plate 8 by the way of welding.
As shown in Figure 3,4, round hole 9 and waist-shaped hole 10 are provided on the homogenating plate 8.Round hole pore size is consistent, waist
There are two types of different lengths for type hole；Two sides use the design of waist-shaped hole, available bigger percent opening, and area is larger, head
Loss is smaller, and mistake row's design compression strength is higher.
Specifically, according to pass and round hole center away from difference homogenating plate 8 is divided into different regions: waist-shaped hole is distributed
At the both ends of homogenating plate 8, referred to as the first plenum area 81；Round hole is distributed among homogenating plate 8, in the middle region of equal scoreboard 8
Domain is known as third venting area 83, and the region between the first plenum area 81 and third venting area 83 is known as the second plenum area 82.
On second plenum area 82 center of two neighboring round hole away from be less than third venting area 83 on two neighboring round hole center away from.
Specifically, the first plenum area 81 of the homogenating plate 8, the second plenum area 82 and third venting area 83 account for homogenating plate 8
The ratio of area is 1:6:2.When air-flow is aspirated from bump joint (5), square box part (3) internal face bump joint
(5) zone negative pressure is maximum, and is gradually reduced along tank ends, and the first plenum area 81, the second plenum area 82 and third are led to
The area ratio in wind area 83 is designed as 1:6:2, can make to substantially form three iso pressures on cabinet length direction, avoid generating
Turbulent flow is conducive to uniform ventilation.
In addition, the ventilation hole 9 of 8 first plenum area 81 of homogenating plate, the second plenum area 82 and third venting area 83 circulates
The ratio of area is 1:5:1.By adjusting the first plenum area (81), the second plenum area (82) and third venting area on homogenating plate
(83) area of ventilation hole on changes homogenating plate (8) regional area percent opening, so that the first plenum area (81), the second plenum area
(82) it tends to balance with third venting area (83) gas-flow resistance, to make the stream pressure in three regions, velocity uniformity more
Good, in aspiration channel (4), mouth forms uniform and stable negative pressure in this way.Percent opening is excessive, and the uniformity of air-flow is bad, percent opening mistake
Small, local head loss increases.When the ventilation hole stream of the first plenum area (81), the second plenum area (82) and third venting area (83)
When the ratio of logical area is 1:5:1, the percent opening in each area can just make the head loss of homogenating plate (8) minimum, and air-flow
Uniformity is best.
Specifically, the round hole arrangement mode of second plenum area 82 is by 45 ° of wrong rows；The circle in the third venting area 83
Shape hole arrangement mode is by 26.6 ° of wrong rows；The hole arrangement mode of first plenum area 81 is that the waist-shaped hole of two kinds of different lengths presses Z
Type mistake row.Using mistake row mode, can under the premise of meeting ventilation rate proof strength.
It is preferably implemented in case, the circle bore dia is 10mm, and the hole center of the second plenum area is away from for 14.1mm, third
The hole center of plenum area is away from for 22.4mm；Long waist-shaped hole length is 50mm, and the length of short waist-shaped hole is 30mm, two kinds of waist-shaped holes
Circular arc portion diameter is all 10mm, and the shortest distance of adjacent two column waist-shaped hole is 5mm, and adjacent two hole is most in each column waist-shaped hole
Short distance is 10mm.The homogenating plate of above-mentioned size can adapt to currently used vacuum tank, and it is raw to meet current CPP/CPE casting films
The requirement of production. art.
Specifically, the sealing vacuum box plate 6 is detachably arranged in 1 both ends of vacuum chamber, ensure that vacuum tank can
Maintainability.
The aspiration channel 4 is uniformly arranged on vacuum tank backboard 7, the centre bit of aspiration channel 4 center and bump joint 5
It sets on sustained height.
Aspiration channel 4 in use, need to be only connected with the suspended hood on cast film machine by hose by the present invention, and by method
Blue connector 5 is connected with vaccum-pumping equipment by metal tube.
The above content is merely illustrative of the technical solution of the present invention, rather than the limitation to invention protection scope, this field
The simple modification or equivalent replacement that those of ordinary skill carries out technical solution of the present invention, all without departing from essence of the invention
And range.
Claims (7)
1. a kind of cast film machine vacuum tank, including vacuum chamber (1), aspiration channel (4), sealing vacuum box plate (6) and flange connect
Head (5)；The vacuum chamber (1) includes taper box portion (2) and square box part (3), it is characterised in that: it is described rectangular
Be equipped with one piece of homogenating plate (8) in cabinet (3), the homogenating plate (8) be equipped with the first plenum area (81), the second plenum area (82) and
Third venting area (83)；First plenum area (81) is arranged on the both ends of homogenating plate and uniformly offers waist type ventilation hole (9),
The middle part of homogenating plate is arranged in third venting area (83), and the region between the first plenum area (81) and third venting area (83) is the
Two plenum areas (82)；The identical circular vent of diameter is uniformly offered on second plenum area (82) and third venting area (83)
(10)；
The ventilation hole circulating face of (8) first plenum area (81) of homogenating plate, the second plenum area (82) and third venting area (83)
Long-pending ratio is 1:5:1.
2. cast film machine vacuum tank according to claim 1, it is characterised in that: the first ventilation of the homogenating plate (8)
Area (81), the second plenum area (82) and third venting area (83) account for the ratio of homogenating plate (8) area as 1:6:2.
3. cast film machine vacuum tank according to claim 1, it is characterised in that: the circle of second plenum area (82)
Hole arrangement mode is by 45 ° of wrong rows；The round hole arrangement mode of the third venting area (83) is by 26.6 ° of wrong rows.
4. cast film machine vacuum tank according to claim 1, it is characterised in that: the waist type of first plenum area (81)
It is arranged by Z-type mistake in hole.
5. cast film machine vacuum tank according to claim 4, it is characterised in that: the length dimension of the waist-shaped hole has two
Kind, the waist-shaped hole size of same row is identical, and the waist-shaped hole size of adjacent two rows is not identical.
6. cast film machine vacuum tank according to claim 1, it is characterised in that: the aspiration channel (4) is uniformly arranged
On vacuum tank backboard (7), the center of aspiration channel (4) center and bump joint (5) is on sustained height.
7. cast film machine vacuum tank described in any one of -6 claims according to claim 1, it is characterised in that: the vacuum
Case sealing plate (6) is detachably arranged in vacuum chamber (1) both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006526.3A CN109624165A (en) | 2019-01-04 | 2019-01-04 | A kind of vacuum tank for cast film machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006526.3A CN109624165A (en) | 2019-01-04 | 2019-01-04 | A kind of vacuum tank for cast film machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109624165A true CN109624165A (en) | 2019-04-16 |
Family
ID=66056603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910006526.3A Pending CN109624165A (en) | 2019-01-04 | 2019-01-04 | A kind of vacuum tank for cast film machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109624165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873323A (en) * | 2022-05-25 | 2022-08-09 | 天长市君华彩印有限公司 | Color printing carton apparatus for producing |
| CN115365512A (en) * | 2022-09-08 | 2022-11-22 | 深圳市华阳新材料科技有限公司 | Balanced negative pressure mechanism of evenly induced drafting with adjustable segmentation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000210961A (en) * | 1999-01-26 | 2000-08-02 | Toray Ind Inc | Apparatus and method for producing film |
| US6368534B1 (en) * | 1999-07-07 | 2002-04-09 | Fuji Photo Film Co., Ltd. | Solution casting process |
| CN1767931A (en) * | 2003-04-02 | 2006-05-03 | 蒙诺苏尔有限公司 | Surfactant applicator for solution casting apparatus and method of producing a film |
| CN202462752U (en) * | 2012-01-09 | 2012-10-03 | 广东联塑机器制造有限公司 | Double-cavity type negative pressure air knife used on curtain coating machine |
| CN205853227U (en) * | 2016-07-14 | 2017-01-04 | 中山松德新材料装备有限公司 | A kind of even wind structure of negative-pressure vacuum case |
| CN207290686U (en) * | 2017-08-28 | 2018-05-01 | 深圳市博盛新材料有限公司 | A kind of roller vacuum extractor, casting machine and film line |
| CN210415196U (en) * | 2019-01-04 | 2020-04-28 | 广东省智能制造研究所 | Vacuum box for casting film machine |
-
2019
- 2019-01-04 CN CN201910006526.3A patent/CN109624165A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000210961A (en) * | 1999-01-26 | 2000-08-02 | Toray Ind Inc | Apparatus and method for producing film |
| US6368534B1 (en) * | 1999-07-07 | 2002-04-09 | Fuji Photo Film Co., Ltd. | Solution casting process |
| CN1767931A (en) * | 2003-04-02 | 2006-05-03 | 蒙诺苏尔有限公司 | Surfactant applicator for solution casting apparatus and method of producing a film |
| CN202462752U (en) * | 2012-01-09 | 2012-10-03 | 广东联塑机器制造有限公司 | Double-cavity type negative pressure air knife used on curtain coating machine |
| CN205853227U (en) * | 2016-07-14 | 2017-01-04 | 中山松德新材料装备有限公司 | A kind of even wind structure of negative-pressure vacuum case |
| CN207290686U (en) * | 2017-08-28 | 2018-05-01 | 深圳市博盛新材料有限公司 | A kind of roller vacuum extractor, casting machine and film line |
| CN210415196U (en) * | 2019-01-04 | 2020-04-28 | 广东省智能制造研究所 | Vacuum box for casting film machine |
Non-Patent Citations (1)
| Title |
|---|
| 赵肃铭、冯国泰、韩万今: "《粮食加工与综合利用工艺学》", 哈尔滨工业大学出版社, pages: 131 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873323A (en) * | 2022-05-25 | 2022-08-09 | 天长市君华彩印有限公司 | Color printing carton apparatus for producing |
| CN115365512A (en) * | 2022-09-08 | 2022-11-22 | 深圳市华阳新材料科技有限公司 | Balanced negative pressure mechanism of evenly induced drafting with adjustable segmentation |
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