CN110217627B - Air roller for film traction - Google Patents
Air roller for film traction Download PDFInfo
- Publication number
- CN110217627B CN110217627B CN201910585562.XA CN201910585562A CN110217627B CN 110217627 B CN110217627 B CN 110217627B CN 201910585562 A CN201910585562 A CN 201910585562A CN 110217627 B CN110217627 B CN 110217627B
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- China
- Prior art keywords
- air
- cavity
- roller body
- roller
- roll
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention relates to the technical field of film processing, and discloses a film traction air roller which comprises a roller body, wherein a cavity is formed in the roller body, an air hole communicated with the cavity and the outside is formed in the roller body, one end of the roller body is connected with an air supply mechanism for supplying air to the cavity, the other end of the roller body is provided with an air supply mechanism, the air supply mechanism comprises a cavity fixed on the roller body, the other end of the roller body is provided with a drainage hole communicated with the cavity, the roller body is internally provided with an annular cavity, a guide pipe is communicated between the annular cavity and the cavity, and the roller body is. The invention can solve the problem that the air roller device in the prior art influences the transmission and quality of the thin-walled tube due to uneven air outlet of the air holes.
Description
Technical Field
The invention relates to the technical field of film processing, in particular to an air roller for film traction.
Background
When the blow molding equipment is used for producing a film, plastic raw materials are extruded through the die head to form a thin-walled tube, the thin-walled tube is pulled upwards, is pressed into a double-layer planar film through the herringbone plate and the traction device, is transmitted through the guide roller, and is finally wound through the winding device. In the process of conveying the thin-walled tube, the thin-walled tube is contacted with the guide roller, so that a large friction force is easily generated between the thin-walled tube and the guide roller, and the friction force easily enables the thin-walled tube to be wrinkled and even enables the thin-walled tube to be pulled and broken.
In order to solve the problems, an air roller device is provided in the prior art, and comprises an air roller, wherein an air hole is formed in the air roller, and one end of the air roller is communicated with an air blower; when the thin-walled tube is driven, the air roller is continuously introduced with air with certain pressure through the air blower, so that a certain gap is formed between the thin-walled tube and the air roller, the thin-walled tube can be driven to move, and the friction force between the thin-walled tube and the air roller can be reduced.
Although the air roller device can reduce the friction force, the air roller device has the following defects: the air blower is positioned at one end of the air roller, in the ventilation process, the air outlet quantity of the air holes close to the air blower is larger than the air outlet quantity of the air holes far away from the air blower, so that the air outlet on the air roller is uneven, the distances between the thin-wall pipe and the air roller are unequal, the thin-wall pipe is easy to be drawn, and dead angles are easy to appear in the part due to the fact that the air roller far away from one end of the air blower is not ventilated, the air flow of the part is small, and the thin-wall pipe near the part is adhered to the air roller to influence the transmission.
Disclosure of Invention
The invention aims to provide an air roller for film traction, which aims to solve the problem that the air roller device in the prior art influences the transmission and quality of a thin-walled tube due to uneven air outlet of air holes.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
film is pull and is used gas roller, including the roll body, it has the cavity to open in the roll body, it has intercommunication cavity and external gas pocket to open on the roll body, and roll body one end is connected with the air feed mechanism to the cavity air feed, and the roll body other end is equipped with tonifying qi mechanism, and tonifying qi mechanism is including fixing the cavity on the roll body, and it has the drainage hole that communicates with the cavity to open on the roll body other end, opens annular chamber in the roll body, and the intercommunication has the pipe between annular chamber and the cavity, is equipped with the tonifying qi hole that.
Compared with the prior art, the invention has the following principle and beneficial effects: when the air supply device is used, air is introduced into the cavity of the roller body through the air supply mechanism, flows out of the air holes and blows the air to the thin-walled tube on the surface of the roller body, and a certain gap is formed between the thin-walled tube and the air roller; meanwhile, air in the cavity flows into the cavity from the drainage hole, and the cavity is communicated with the annular cavity, so that the air entering the cavity flows into the annular cavity through the guide pipe and then is blown to the thin-walled tube on the surface of the roller body through the air supplementing hole, and air supplementation is realized.
1. Set up the drainage hole, make the cavity keep away from the one end department air of air feed mechanism and can flow, avoid the local four corners to appear and lead to this part air flow less.
2. The air supply mechanism and the air supply mechanism are respectively positioned at two ends of the roller body, so that the air quantity difference of each air hole is insufficient through the air supply hole under the condition that the air flowing out from the air holes is not uniform, the air outlet quantity of each air hole on the roller body is uniform, the same interval is kept between the thin-wall pipe and each part of the roller body, the friction force between the thin-wall pipe and the air roller can be reduced, the pulling force generated inside the thin-wall pipe due to the distance difference can be avoided, and the production quality of the thin film is improved.
Further, the aperture of the drainage hole is smaller than that of the air hole. The effect of drainage hole is in order to prevent to keep away from the local four corners of the one end of air feed mechanism appearance, and the air in the cavity mainly is through the gas pocket flow direction thin wall pipe.
Further, the number of the air supplementing holes is the same as that of the air holes. So as to better realize air supplement and ensure that the air outlet of the roller body is uniform.
Further, the aperture of the air supply hole is smaller than or equal to the aperture of the air hole. Because the air flow difference between every two air holes is small, the aperture of the air replenishing hole is not required to be too large, and air replenishing can be realized.
Furthermore, a control valve is arranged on the conduit. The air flow of the air supply hole can be adjusted through the control valve, and air can be supplied better.
Further, the roller device further comprises a driving mechanism for driving the roller body to move along the length direction of the roller body. In general, the air roller rotates along with the rack during conveying the thin-walled tube, and the thin-walled tube and the air roller move relatively during rotation, so that in order to better realize conveying, the length of the air holes distributed on the air roller is usually larger than the width of the conveyed thin-walled tube, and in this case, part of the air holes are idle. The air roller is driven to move through the driving mechanism, relative movement between the air roller and the thin-walled tube is eliminated, the air holes can be completely aligned to the thin-walled tube, and waste caused by idle air holes is avoided.
Furthermore, actuating mechanism is including setting up the piston cylinder at the roll body both ends, and equal sliding connection has the piston in the piston cylinder, and the rigid coupling has the piston rod on the piston, and the piston rod is kept away from the one end and the coaxial fixed connection of roll body of piston cylinder, is equipped with the inlet port on the piston cylinder, is connected with the mechanism of aerifing on the inlet port, still is equipped with the pressure valve on the piston cylinder. The inflation mechanism inflates the two piston cylinders, the piston is driven to move by utilizing the pressure difference in the piston cylinders, the piston rod is driven to move by the piston, so that the piston rod drives the air roller to move, the moving distance of the air roller is not too large, the pressure valve can be regulated and controlled, and when the air pressure in the piston cylinders is too large, the pressure valve can be automatically opened to deflate.
Further, the inflation mechanism comprises air guide pipes communicated with the air inlet holes, valves are arranged on the air guide pipes, a first three-way valve is communicated between the air guide pipes at the two ends of the roller body, and the first three-way valve is communicated with the air supply mechanism. The air supply mechanism can not only supply air to the cavity, but also supply air to the piston cylinder.
Furthermore, the air guide pipes are provided with one-way valves which are guided and communicated into the piston cylinder. The one-way valve is arranged, so that gas in the piston cylinder can be prevented from flowing back into the gas guide pipe.
Further, the air supply mechanism is a blower. The operation is convenient and easy to obtain.
Drawings
Fig. 1 is a schematic front view partially in cross section according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a top view of a gas roller according to an embodiment of the present invention;
FIG. 4 is a side sectional view of the drainage holes in positional relationship with the cavity in accordance with one embodiment of the present invention;
fig. 5 is a schematic partial cross-sectional front view according to a second embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the roller comprises a roller body 1, a cavity 2, an air hole 3, an air blower 4, a cavity 5, a drainage hole 6, an annular cavity 7, a guide pipe 8, a control valve 9, an air supplementing hole 10, a piston cylinder 11, a piston 12, a piston rod 13, an air pipe 14, a pressure valve 15, an air guide pipe 16, a valve 17, a one-way valve 18, a first three-way valve 19 and a second three-way valve 20.
An embodiment substantially as described in figures 1 to 4 of the accompanying drawings:
air roller is used in film traction, including roll body 1, it has cavity 2 to open in the roll body 1, and it has intercommunication cavity 2 and external gas pocket 3 to open on the roll body 1, and the left end of roll body 1 is connected with the air feed mechanism to cavity 2 air feed, and in this embodiment, air feed mechanism is air-blower 4. The right-hand member of roll body 1 is equipped with tonifying qi mechanism, and tonifying qi mechanism is including fixing cavity 5 on roll body 1, and it has the drainage hole 6 with cavity 5 intercommunication to open on roll body 1's the right-hand member, and the aperture of drainage hole 6 is less than the aperture of gas pocket 3, and drainage hole 6 is circumference evenly distributed on roll body 1. An annular cavity 7 is formed in the roller body 1, a guide pipe 8 is communicated between the annular cavity 7 and the cavity 5, a control valve 9 is installed on the guide pipe 8, air replenishing holes 10 communicated with the annular cavity 7 are formed in the roller body 1, the number of the air replenishing holes 10 is the same as that of the air holes 3, and the aperture of each air replenishing hole 10 is smaller than or equal to that of each air hole 3.
During specific implementation, the thin-walled tube is connected to the air roller in a winding mode, the air blower 4 is started, the air blower 4 introduces air into the cavity 2, the air flows from left to right in the cavity 2, and the air flows out of the air holes 3 in the process and blows the thin-walled tube on the surface of the roller body 1, so that a certain gap is formed between the thin-walled tube and the air roller. Meanwhile, air in the cavity 2 flows into the cavity 5 from the drainage hole 6, and the cavity 5 is communicated with the annular cavity 7, so that the air entering the cavity 5 flows into the annular cavity 7 through the guide pipe 8 and then is blown to the thin-walled tube on the surface of the roller body 1 through the air replenishing hole 10, and air replenishing is realized. The air flow in the air supplement hole 10 can be controlled by adjusting the control valve 9 in the process.
The second embodiment is substantially as shown in figure 5:
the difference between this embodiment and the first embodiment is: still including being used for driving roll body 1 along 1 length direction reciprocating motion's of roll body actuating mechanism, actuating mechanism is including setting up the piston cylinder 11 at 1 both ends of roll body, equal sliding connection has piston 12 in the piston cylinder 11, the rigid coupling has piston rod 13 on the piston 12, piston rod 13 keeps away from the one end and the coaxial fixed connection of roll body 1 of piston cylinder 11, it has inlet port 3 to open on the piston cylinder 11, still install pressure valve 15 on the piston cylinder 11, be connected with the mechanism of aerifing on the inlet port 3. The air inflation mechanism comprises air guide pipes 16 communicated with the air inlet holes 3, the air guide pipes 16 are respectively provided with a valve 17 and a one-way valve 18 which is guided and communicated into the piston cylinder 11, the air guide pipes 16 at two ends of the roller body 1 are communicated with a first three-way valve 19, the air blower 4 is communicated with the cavity 2 through a second three-way valve 20, and an air pipe 14 is communicated between the first three-way valve 19 and the second three-way valve 20.
In general, the air roller rotates along with the rack during conveying the thin-walled tube, and the thin-walled tube and the air roller move relatively during rotation, so that in order to better realize conveying, the length of the air holes 3 distributed on the air roller is usually greater than the width of the conveyed thin-walled tube, and in this case, part of the air holes 3 are idle. Let in the air through air-blower 4 in to piston cylinder 11, utilize the air input in the valve 17 regulation two piston cylinders 11 on the pipe 8, make the piston cylinder 11 air input of left and right both ends change in turn, promptly: two valves 17 are adjusted to make the air input in the left end piston cylinder 11 larger than the air input in the right end piston cylinder 11, so the air pressure in the left end piston cylinder 11 is increased and accelerated, the left piston 12 and the piston rod 13 move rightwards quickly, and the air roller moves rightwards, otherwise, the air roller moves leftwards, and the left and right reciprocating movement of the air roller is realized. In the process, the pressure valve 15 is used for regulation and control, and when the air pressure in the piston cylinder 11 is too high, the pressure valve 15 is automatically opened to deflate.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that variations and modifications can be made by those skilled in the art without departing from the structure of the present invention. These should also be construed as the scope of the present invention, and they should not be construed as affecting the effectiveness of the practice of the present invention or the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Film is pull and is used gas roller, including the roll body, it has the cavity to open in the roll body, and it has intercommunication cavity and external gas pocket to open on the roll body, and roll body one end is connected to the air feed mechanism to the cavity air feed, its characterized in that: the other end of the roller body is provided with an air supplementing mechanism, the air supplementing mechanism comprises a cavity fixed on the roller body, the other end of the roller body is provided with a drainage hole communicated with the cavity, an annular cavity is formed in the roller body, a guide pipe is communicated between the annular cavity and the cavity, and the roller body is provided with the air supplementing hole communicated with the annular cavity.
2. The air roll for film pulling of claim 1, characterized in that: the aperture of the drainage hole is smaller than that of the air hole.
3. The air roll for film pulling of claim 1, characterized in that: the number of the air supplementing holes is the same as that of the air holes.
4. The air roll for film pulling of claim 1, characterized in that: the aperture of the air supplementing hole is smaller than or equal to that of the air hole.
5. The air roll for film pulling according to any one of claims 1 to 4, characterized in that: the guide pipe is provided with a control valve.
6. The air roll for film pulling of claim 1, characterized in that: the roller body is driven to move along the length direction of the roller body by the driving mechanism.
7. The air roll for film pulling of claim 6, wherein: the driving mechanism comprises piston cylinders arranged at two ends of the roller body, pistons are connected in the piston cylinders in a sliding mode, piston rods are fixedly connected to the pistons, one ends, far away from the piston cylinders, of the piston rods are fixedly connected with the roller body in a coaxial mode, air inlet holes are formed in the piston cylinders, inflating mechanisms are connected to the air inlet holes, and pressure valves are further arranged on the piston cylinders.
8. The air roll for film pulling of claim 7, wherein: the inflation mechanism comprises air guide tubes communicated with the air inlet holes, valves are arranged on the air guide tubes, a first three-way valve is communicated between the air guide tubes at the two ends of the roller body, and the first three-way valve is communicated with the air supply mechanism.
9. The air roll for film pulling of claim 8, wherein: and the air guide pipes are provided with one-way valves which are guided and communicated into the piston cylinder.
10. The air roll for film pulling of claim 1, characterized in that: the air supply mechanism is an air blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585562.XA CN110217627B (en) | 2019-07-01 | 2019-07-01 | Air roller for film traction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585562.XA CN110217627B (en) | 2019-07-01 | 2019-07-01 | Air roller for film traction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110217627A CN110217627A (en) | 2019-09-10 |
| CN110217627B true CN110217627B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910585562.XA Active CN110217627B (en) | 2019-07-01 | 2019-07-01 | Air roller for film traction |
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| Country | Link |
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| CN (1) | CN110217627B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743979B (en) * | 2020-12-24 | 2022-09-30 | 重庆瑞霆塑胶有限公司 | Printing film compounding machine |
| CN114920054A (en) * | 2022-05-26 | 2022-08-19 | 青岛河钢复合新材料科技有限公司 | Reversing roller and color film chamber |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131024A (en) * | 1983-01-17 | 1984-07-27 | Kanai Hiroyuki | Chilled roll for web layer |
| CN2491211Y (en) * | 2001-08-13 | 2002-05-15 | 马镇鑫 | Air cushion roller of blow molding machine |
| DE20309429U1 (en) * | 2003-06-17 | 2003-09-18 | Reifenhaeuser Masch | Extraction device of a tubular film extrusion system |
| DE102008005659B4 (en) * | 2008-01-23 | 2010-12-09 | Gerhard Bach | Deflection element for flexible flat material and method for its operation |
| JP2011251803A (en) * | 2010-06-01 | 2011-12-15 | Nihon Gore Kk | Apparatus for changing direction of long sheet |
| CN202013524U (en) * | 2011-03-30 | 2011-10-19 | 广东金明精机股份有限公司 | Air cushion roller pressure controlling device |
| CN206633590U (en) * | 2017-03-30 | 2017-11-14 | 上海出版印刷高等专科学校 | A kind of anti-set-off air dancing roll |
| CN206718458U (en) * | 2017-04-21 | 2017-12-08 | 上海海湾石化有限公司 | A kind of air cushion roller of blow moulding machine |
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2019
- 2019-07-01 CN CN201910585562.XA patent/CN110217627B/en active Active
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| Publication number | Publication date |
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| CN110217627A (en) | 2019-09-10 |
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