CN110696249B - Water spraying device for film cooling - Google Patents
Water spraying device for film cooling Download PDFInfo
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- CN110696249B CN110696249B CN201911034104.3A CN201911034104A CN110696249B CN 110696249 B CN110696249 B CN 110696249B CN 201911034104 A CN201911034104 A CN 201911034104A CN 110696249 B CN110696249 B CN 110696249B
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention relates to a water spraying device for cooling a film casting sheet in the film casting sheet forming process to ensure that the crystallinity and the grain size of the film casting sheet are consistent, which comprises a water tank, a swing frame and three water spraying pipes which are parallel to each other on the swing frame, wherein the swing frame comprises a water inlet side end plate, a rotating side end plate, a pull rod and a rotating shaft, the rotating shaft is arranged on a side plate of the water tank through a self-lubricating sleeve, a swing angle adjusting device of the swing frame is arranged on the swing frame, the water spraying pipes comprise a round pipe and a rotating handle which are arranged on one side of a chill roll in parallel, a long seam with the same width as the roll surface of the chill roll is arranged on the round pipe, the water spraying pipes fix the spraying angle through locking butterfly nuts, one end of each water spraying pipe penetrates through a water inlet side mounting plate to be connected with an elbow, the three water inlet hard pipes are communicated with the elbow, the device sprays water uniformly and stably, and solves, the spraying distance and the angle are convenient to adjust, so that the film has a good cooling effect.
Description
Technical Field
The invention belongs to the technical field of plastic film production, and particularly relates to a water spraying device for film cooling, which is used for cooling a film casting sheet in the film casting sheet forming process to ensure that the crystallinity and the grain size of the film casting sheet are consistent.
Background
In the cast sheet forming process of a film stretching production line, molten polymer is extruded from a die head and then is rapidly attached to the surface of a high-polishing, chromium-plating and low-temperature chill roll for cooling and forming, in the existing chill roll-water tank cooling method, the film sheet is cooled by introducing cooling water into the interior of a chill roll with double channels, the cooling effect of the film attached to the surface of a roll barrel is good, and the cooling effect of the side away from the chill roll is insufficient, so that the crystallinity and the grain size of two sides of the film sheet have certain difference, the thicker the sheet is, the more serious the difference is, the film sheet can be warped, and the surface wrinkles are generated, which directly influences the quality of the cast sheet.
Patent publication No. CN207044512 discloses a cooling water device of biaxial stretching polypropylene film, including cooling trough, the import and the export of locating cooling trough, coolant tank and buffer tank, coolant tank has a plurality of cooling water injection subassemblies through pipe connection, and cooling water injection subassembly locates the cooling trough top, and the delivery port has been seted up to coolant tank below, and the delivery port passes through pipe connection in buffer tank, buffer tank and cooling water
The tanks are communicated. Although the cooling water spraying assembly can be used for spraying the film in a multi-angle cooling mode, the cooling effect can be well achieved, the cooling water spraying assembly is sprayed on one surface of the polypropylene film, and the defect of poor cooling effect exists.
Patent publication No. CN106584735 discloses a diaphragm cooling device, which adopts a cooling system additionally arranged at a cold drum, and overcomes the problems that in the prior art, the two surfaces of a diaphragm are cooled inconsistently and the cooling speed is slow, so that the crystallization phenomenon is easy to occur in the diaphragm, and the subsequent stretching is influenced; the technical scheme is as follows: a film cooling device is composed of a cold drum, a die head and a film cooling system, wherein a viscous-state melt flowing out of the die head forms a film along the cold drum, and the cooling system is positioned on the other side of the film. The diaphragm cooling system is composed of an air inlet system, a heat exchange system, a flexible connection, a mobile unit and a leeward system. The technical scheme is that the defects of the traditional diaphragm cooling process are changed by adopting an air cooling mode, so that the surface temperature of the diaphragm can be uniform, and the cooling working efficiency is improved. However, although the diaphragm can be cooled by adopting the air cooling process, the wind direction and the wind force of the air cooling are difficult to control, and the phenomena of corrugation, deflection and the like of the diaphragm are easily caused, which is not beneficial to the forming of the diaphragm.
Patent publication No. CN 103624961 discloses a cast sheet forming and cooling device of a film production line, which comprises a die head, a sheet attaching device, a water tank, a peeling roller device and a chill roller arranged in the water tank; the invention ensures that two sides of the thick sheet are simultaneously and uniformly cooled by the uniquely designed water spray pipe cooling device and the chill roll water removing device, so that the crystallinity of the thick sheet is small, the performances of the two sides are close, a thick sheet intermediate product with excellent quality is provided for the next stretching process, and the thick sheet can be stretched to prepare a film with the width of 10m or the thickness of 400 mu m. However, the water spraying device of the invention is fixedly arranged in the water tank, the water spraying angle of the water spraying pipe and the distance from the water spraying pipe to the chill roll can not be adjusted according to requirements, and meanwhile, the water spraying pipe adopts water spraying holes, so that the problem of forming pits on the surface of the film due to uneven water spraying is easily caused, the spraying distance and the angle are inconvenient to adjust, and the film cooling effect is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the water spraying device for film cooling, which has the advantages of uniform and stable water spraying, convenient adjustment of spraying distance and angle and capability of solving the problem of nonuniform cooling of two surfaces of a film.
The purpose of the invention is realized as follows:
a water spraying device for film cooling comprises a water tank, a swing frame arranged in the water tank, and three water spraying pipes which are parallel to each other and are arranged on the swing frame,
the swing frame comprises a water inlet side end plate, a rotating side end plate, a pull rod and a rotating shaft, wherein the pull rod is connected with and positioned between the water inlet side end plate and the rotating side end plate; the upper part of the swing frame is provided with a swing angle adjusting device of the swing frame, and the swing angle of the swing frame is realized by the swing angle adjusting device of the swing frame;
the water spraying pipe comprises a round pipe arranged on one side of the chilling roller in parallel and a rotating handle which is arranged on one side of the round pipe and controls the round pipe to rotate, a long seam which is used for spraying water outwards and has the same width size with the roller surface of the chilling roller is formed in the round pipe, and the adjustment of the spraying angle of the long seam of the round pipe is realized by rotating the rotating handle; the spray pipe is arranged between the water inlet side end plate and the rotating side end plate of the swing frame through the water inlet side mounting plate and the rotating side mounting plate, and after a circular pipe of the spray pipe passes through mounting holes formed in the water inlet side mounting plate and the rotating side mounting plate and is adjusted to a preset angle, the spray angle is fixed through a locking butterfly nut on the water inlet side mounting plate or the rotating side mounting plate;
one end of the water spray pipe penetrates through the water inlet side mounting plate to be connected with the elbow, a sealing ring for preventing water leakage is sleeved between the water spray pipe and the elbow, three water inlet hard pipes are further arranged below the water tank, and the three water inlet hard pipes are communicated with the elbow.
The swing angle adjusting device of the swing frame comprises a screw rod and a hand wheel for driving the screw rod to rotate, the screw rod penetrates through a screw rod nut, the screw rod nut is fixed on a rotating block, the rotating block is hinged on a support, the support is fixedly arranged on a water tank, and the rotating block rotates around a rotating shaft along with the swing frame and rotates on the same vertical plane together with the screw rod and the screw rod nut; the one end of lead screw links to each other with the hand wheel, the other end of lead screw is connected with the connecting block, connecting block movable sleeve is on the polished rod part of lead screw tip, perpendicular to lead screw axis has seted up the connecting block rotation hole on the connecting block, install the one end of axis of rotation through the axle sleeve in this connecting block rotation hole, the side end plate rotation hole of intaking has also been seted up at the side end plate of intaking simultaneously, also install the other end of axis of rotation through the axle sleeve in this side end plate rotation hole of intaking, the connecting block passes through axis of rotation swing joint with the side end plate of intaking and is in the same place, when the swing span need swing, rotatory hand wheel drives the lead screw and adjusts.
The three water inlet hard pipes are positioned at the bottom of the water tank, the three water inlet hard pipes are connected with the elbow through water inlet hoses, 3 electromagnetic valves for water paths for adjusting water flow pressure are respectively installed on the three water inlet hard pipes, the bottom of the water tank is communicated with a filtering and cooling circulation system through a water outlet, and the filtering and cooling circulation system is communicated with the three water inlet hard pipes to realize recycling.
The pipe passes through the nylon spacer and installs on intaking side-mounting board and rotation side-mounting board, and the nylon spacer is cylindrical structure, and the diameter ratio pipe is big, and the pipe passes in the middle of the nylon spacer, prevents to damage the roll surface of chill roll because misoperation.
The side-mounting board and the side-mounting board that rotates of intaking are installed respectively through the bolt on the side end plate of intaking and the side end plate that rotates of swinging arms.
A limit block is arranged at the limit position of the swing frame close to the chilling roller and fixedly connected with the water tank through a bolt, a limit bolt is arranged on the limit block, and the swing range of the swing frame can be adjusted by rotating the limit bolt.
Compared with the prior art, the invention has the beneficial effects that: the design is a novel water spraying device for film cooling, the device sprays water evenly stably, the problem of forming a pit on the surface of a film due to uneven water spraying is solved, and the spraying distance and the angle are convenient to adjust, so that the film has a better cooling effect.
Drawings
FIG. 1 is a schematic front view of a water spray apparatus for film cooling according to the present invention.
FIG. 2 is a schematic top view of the water spray apparatus for film cooling of the present invention.
FIG. 3 is a schematic left side view of the water jet for film cooling of the present invention.
FIG. 4 is a schematic right view of the water jet for film cooling of the present invention.
Fig. 5 is a sectional view taken along line a-a of fig. 3.
Reference numbers in the figures: 1. the water inlet side end plate comprises side plates, 2 self-lubricating copper sleeves, 3 swing frames, 301 water inlet side end plates, 302 pull rods, 303 rotating side end plates, 304 rotating shafts, 305 rotating side convex shafts, 306 water inlet side convex shafts, 4 water spray pipes, 401 rotating handles, 402 round pipes, 5 elbows, 6 distance adjusting devices, 601 lead screws, 602 small shafts, 603 copper sleeves, 604 small blocks, 605 nuts, 606 supports, 607 rotating blocks, 608 hand wheels, 7 nylon spacers, 8 sealing rings, 9 water inlet side mounting plates, 10 bolts, 11 chilling rollers, 12 limiting blocks, 13 limiting bolts, 14 water inlet hoses, 15 rotating side mounting plates, 16 butterfly bolts, 17 solenoid valves for water paths, 18 water inlet hard pipes and 19 water grooves.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1 as shown in fig. 1, 2, 3 and 4, a water spray device for film cooling comprises a water tank 19, a swing frame 3 disposed in the water tank 19, three water spray pipes 4 installed in parallel on the swing frame 3,
the swing frame 3 comprises a water inlet side end plate 301, a rotating side end plate 303, a pull rod 302 which is connected with and between the water inlet side end plate 301 and the rotating side end plate 303, a rotating shaft 304 which is arranged at the lower part of the water inlet side end plate 301 and the rotating side end plate 303, a water inlet side convex shaft 306 which is arranged on the water inlet side end plate 301 and a rotating side convex shaft 305 which is arranged on the rotating side end plate 303, the swing frame 3 is formed into a rigid body by the components and swings around the rotating shaft 304, two ends of the rotating shaft 304 are arranged on the side plates 1 through self-lubricating sleeves 2, and the side plates 1 are fixed on two inner side surfaces of the water tank 19;
the upper part of the swing frame 3 is provided with a swing frame swing angle adjusting device 6, and the swing angle of the swing frame 3 is realized through the swing frame swing angle adjusting device 6;
the water spraying pipe 4 comprises a round pipe 402 arranged on one side of the chilling roller 11 in parallel and a rotating handle 401 arranged on one side of the round pipe and used for controlling the round pipe to rotate, a long seam which sprays water outwards and has the same width size with the roller surface of the chilling roller 11 is formed in the round pipe 402, and the adjustment of the spraying angle of the long seam of the round pipe is realized by rotating the rotating handle 401; the spray pipe 4 is arranged between the water inlet side end plate 301 and the rotating side end plate 303 of the swing frame through the water inlet side mounting plate 9 and the rotating side mounting plate 15, and after a circular pipe 402 of the spray pipe passes through mounting holes formed in the water inlet side mounting plate 9 and the rotating side mounting plate 15 and is adjusted to a preset angle, the spraying angle is fixed through a locking butterfly nut 16 on the water inlet side mounting plate 9 or the rotating side mounting plate 15;
one end of the water spraying pipe 4 penetrates through the water inlet side mounting plate 9 to be connected with the elbow 5, a sealing ring 8 for preventing water leakage is sleeved between the water spraying pipe 4 and the elbow 5, three water inlet hard pipes 18 are further arranged under the water tank 19, and the three water inlet hard pipes 18 are communicated with the elbow 5.
The swing angle adjusting device 6 of the swing frame comprises a screw rod 601 and a hand wheel 608 for driving the screw rod 601 to rotate, the screw rod 601 penetrates through a screw rod nut 605, the screw rod nut 605 is fixed on a rotating block 607, the rotating block 607 is hinged on a support 606, the support 606 is fixedly arranged on a water tank 19, and the rotating block 607 rotates around a rotating shaft 304 along with the swing frame 3 and rotates on the same vertical plane together with the screw rod 601 and the screw rod nut 605; one end of the screw rod 601 is connected with a hand wheel 608, the other end of the screw rod 601 is connected with a connecting block 604, the connecting block 604 is movably sleeved on a polished rod part at the end of the screw rod 601, a connecting block rotating hole is formed in the connecting block 604 and is perpendicular to the axis of the screw rod 601, one end of a rotating shaft 602 is installed in the connecting block rotating hole through a shaft sleeve 603, a water inlet side end plate rotating hole is also formed in the water inlet side end plate 301, the other end of the rotating shaft 602 is also installed in the water inlet side end plate rotating hole through the shaft sleeve 603, the connecting block 604 and the water inlet side end plate 301 are movably connected together through the rotating shaft 602, and when the swing frame 3 needs to swing, the rotating hand wheel 608 drives the screw rod 601.
The three water inlet hard pipes 18 are positioned at the bottom of the water tank 19, the three water inlet hard pipes 18 are connected with the elbow 5 through the water inlet hose 14, the three water inlet hard pipes 18 are respectively provided with 3 water path electromagnetic valves 17 for adjusting water flow pressure, the bottom of the water tank 19 is communicated with the filtering and cooling circulation system through a water outlet, and the filtering and cooling circulation system is communicated with the three water inlet hard pipes 18 to realize cyclic utilization. When water spraying and cooling are needed, a water source is started, cooling water flows into the water spraying pipe 4 through the water inlet hose 14, the electromagnetic valve 17 for the water path is used for adjusting the water flow pressure, so that sufficient pressure and speed exist when the water flows out of the circular pipe 402, and the water sprayed out of the circular pipe 402 overflows to the circulating system through the bottom of the water tank 19, is filtered and cooled and then returns to the water spraying pipe 4 again to realize recycling.
The pipe 402 is installed on the side-mounting panel 9 that intakes and rotates side-mounting panel 15 through nylon spacer 7, and nylon spacer 7 is cylindrical structure, and the diameter ratio is big than the pipe, and pipe 402 passes in the middle of nylon spacer 7, prevents to damage the roll surface of chill roll 11 because misoperation.
The water inlet side mounting plate 9 and the rotating side mounting plate 15 are mounted on the water inlet side end plate 301 and the rotating side end plate 303 of the swing frame, respectively, by bolts 10.
A limit block 12 is arranged at the limit position of the swing frame 3 close to the chilling roller 11, the limit block 12 is fixedly connected with the water tank 19 through a bolt, a limit bolt 13 is arranged on the limit block 12, the swing range of the swing frame 3 can be adjusted by rotating the limit bolt 13, a water inlet side convex shaft 306 is arranged on the water inlet side end plate 301 corresponding to the limit block 12 and the limit bolt 13, a rotating side convex shaft 305 is arranged on the rotating side end plate 303 corresponding to the limit block 12 and the limit bolt 13, and the limit bolt 13 respectively acts on the water inlet side convex shaft 306 and the rotating side convex shaft 305 to limit the swing range of the adjustable swing frame 3.
Claims (5)
1. A water spraying device for film cooling comprises a water tank (19), a swing frame (3) arranged in the water tank (19), and three water spraying pipes (4) which are parallel to each other and are arranged on the swing frame (3),
the swing frame (3) comprises a water inlet side end plate (301), a rotating side end plate (303), a pull rod (302) which is connected with the water inlet side end plate (301) and the rotating side end plate (303) and is arranged between the water inlet side end plate and the rotating side end plate, and a rotating shaft (304) which is arranged at the lower part of the water inlet side end plate (301) and the rotating side end plate (303), wherein the swing frame (3) forms a rigid body by the components and swings with the rotating shaft (304) as a shaft, two ends of the rotating shaft (304) are installed on the side plate (1) through self-lubricating sleeves (2), and the side plate (1) is fixed on two inner side surfaces of;
a swing frame swing angle adjusting device (6) is arranged at the upper part of the swing frame (3), and the swing angle of the swing frame (3) is realized through the swing frame swing angle adjusting device (6);
the water spraying pipe (4) comprises a round pipe (402) arranged on one side of the chilling roller (11) in parallel and a rotating handle (401) arranged on one side of the round pipe and used for controlling the round pipe to rotate, a long seam which sprays water outwards and has the same width size with the roller surface of the chilling roller (11) is formed in the round pipe (402), and the adjustment of the spraying angle of the long seam of the round pipe is realized by rotating the rotating handle (401); the spray pipe (4) is arranged between the water inlet side end plate (301) and the rotating side end plate (303) of the swing frame through the water inlet side mounting plate (9) and the rotating side mounting plate (15), and after a circular pipe (402) of the spray pipe penetrates through mounting holes formed in the water inlet side mounting plate (9) and the rotating side mounting plate (15) and is adjusted to a preset angle, the spray angle is fixed through a locking butterfly nut (16) on the water inlet side mounting plate (9) or the rotating side mounting plate (15);
one end of the water spraying pipe (4) penetrates through the water inlet side mounting plate (9) to be connected with the elbow (5), a sealing ring (8) for preventing water leakage is sleeved between the water spraying pipe (4) and the elbow (5), three water inlet hard pipes (18) are further arranged below the water tank (19), and the three water inlet hard pipes (18) are communicated with the elbow (5);
the swing angle adjusting device (6) of the swing frame comprises a screw rod (601) and a hand wheel (608) for driving the screw rod (601) to rotate, the screw rod (601) penetrates through a screw rod nut (605), the screw rod nut (605) is fixed on a rotating block (607), the rotating block (607) is hinged to a support (606), the support (606) is fixedly installed on a water tank (19), and the rotating block (607) rotates around a rotating shaft (304) along with the swing frame (3) and rotates on the same vertical plane together with the screw rod (601) and the screw rod nut (605); one end of the screw rod (601) is connected with a hand wheel (608), the other end of the screw rod (601) is connected with a connecting block (604), the connecting block (604) is movably sleeved on the polished rod part at the end part of the screw rod (601), a connecting block rotating hole is arranged on the connecting block (604) and is vertical to the axis of the screw rod (601), one end of a rotating shaft (602) is arranged in the rotating hole of the connecting block through a shaft sleeve (603), and a rotating hole of the water inlet side end plate is also arranged on the water inlet side end plate (301), the other end of a rotating shaft (602) is also arranged in the rotating hole of the water inlet side end plate through a shaft sleeve (603), a connecting block (604) is movably connected with the water inlet side end plate (301) through the rotating shaft (602), when the swing frame (3) needs to swing, the hand wheel (608) is rotated to drive the screw rod (601) to adjust the spraying distance between the spray pipe (4) and the chilling roller (11).
2. The water spraying device for film cooling according to claim 1, wherein the three water inlet hard pipes (18) are located at the bottom of the water tank (19), the three water inlet hard pipes (18) are connected with the elbow (5) through water inlet hoses (14), 3 solenoid valves (17) for water paths for adjusting water flow pressure are respectively installed on the three water inlet hard pipes (18), the bottom of the water tank (19) is communicated with the filtering and cooling circulation system through a water outlet, and the filtering and cooling circulation system is communicated with the three water inlet hard pipes (18) to realize recycling.
3. The water spray device for film cooling according to claim 1, wherein the circular tube (402) is mounted on the water inlet side mounting plate (9) and the rotating side mounting plate (15) through a nylon spacer (7), the nylon spacer (7) has a cylindrical structure with a larger diameter than the circular tube, and the circular tube (402) passes through the middle of the nylon spacer (7) to prevent damage to the surface of the chill roll (11) due to operational errors.
4. A water jet apparatus for film cooling as claimed in claim 1 wherein the water inlet side mounting plate (9) and the rotating side mounting plate (15) are mounted on the water inlet side end plate (301) and the rotating side end plate (303) of the swing frame respectively by means of bolts (10).
5. The water spray device for film cooling according to claim 1, wherein a limit block (12) is arranged at a limit position of the swing frame (3) close to the chill roll (11), the limit block (12) is fixedly connected with the water tank (19) through a bolt, a limit bolt (13) is arranged on the limit block (12), the swing range of the swing frame (3) can be adjusted by rotating the limit bolt (13), a water inlet side protruding shaft (306) is arranged on the water inlet side end plate (301) corresponding to the limit block (12) and the limit bolt (13), a rotating side protruding shaft (305) is arranged on the rotating side end plate (303) corresponding to the limit block (12) and the limit bolt (13), and the limit bolt (13) acts on the water inlet side protruding shaft (306) and the rotating side protruding shaft (305) respectively to limit the swing range of the adjustable swing frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034104.3A CN110696249B (en) | 2019-10-29 | 2019-10-29 | Water spraying device for film cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034104.3A CN110696249B (en) | 2019-10-29 | 2019-10-29 | Water spraying device for film cooling |
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| Publication Number | Publication Date |
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| CN110696249A CN110696249A (en) | 2020-01-17 |
| CN110696249B true CN110696249B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911034104.3A Active CN110696249B (en) | 2019-10-29 | 2019-10-29 | Water spraying device for film cooling |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113844000B (en) * | 2021-08-09 | 2023-05-12 | 宝鸡天联汇通复合材料有限公司 | Production process of large-caliber flexible composite pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201832840U (en) * | 2010-11-04 | 2011-05-18 | 莱芜钢铁股份有限公司 | Combined adjustable rolling mill roll collar cooling device |
| CN103691747B (en) * | 2013-09-22 | 2016-02-10 | 宣化钢铁集团有限责任公司 | A kind of aerosol cooling spray controlled for steel cooling |
| CN103624961B (en) * | 2013-11-18 | 2016-08-24 | 桂林电器科学研究院有限公司 | The slab molding chiller of film line and cooling means |
| CN108115919A (en) * | 2017-12-14 | 2018-06-05 | 爱思开希（江苏）尖端塑料有限公司 | A kind of film extrusion molding system |
| CN207607095U (en) * | 2017-12-21 | 2018-07-13 | 佛山市立大立塑新材料有限公司 | One kind is for cooling down TPU film equipment |
| CN209520200U (en) * | 2019-03-05 | 2019-10-22 | 河北普阳钢铁有限公司 | A kind of roll cooling device |
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