CN111118741A - Air suction device of web former - Google Patents
Air suction device of web former Download PDFInfo
- Publication number
- CN111118741A CN111118741A CN202010054898.6A CN202010054898A CN111118741A CN 111118741 A CN111118741 A CN 111118741A CN 202010054898 A CN202010054898 A CN 202010054898A CN 111118741 A CN111118741 A CN 111118741A
- Authority
- CN
- China
- Prior art keywords
- air suction
- pipeline
- web former
- suction pipeline
- pressing roller
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
- D04H3/033—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation immediately after yarn or filament formation
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
Abstract
The invention discloses an air suction device of a web former, which comprises a first air suction device and a second air suction device; the second air suction device comprises a second air suction machine, a second air suction box and a second air suction pipeline, wherein the second air suction pipeline is arranged on one side of the first air suction pipeline, the second air suction machine is connected with one end of the second air suction box, and the other end of the second air suction box is connected with one end of the second air suction pipeline. The second air suction pipeline is arranged on one side, away from the first air suction pipeline, of the hot pressing roller, so that the cellosilk on the conveying belt cannot float due to wind power generated by high-speed rotation of the hot pressing roller when the cellosilk goes out of the hot pressing roller, the condition that the machine is damaged due to winding of the hot pressing roller by the cellosilk is effectively avoided, the uniformity of the cellosilk in the web forming process can be ensured, and the cellosilk is guaranteed to form a web according to set process parameters; meanwhile, the conveying speed of the conveying belt and the rotating speed of the hot pressing roller can be increased, and the production efficiency of the web former is effectively improved.
Description
Technical Field
The invention relates to the technical field of non-woven fabric production, in particular to an air suction device of a web former.
Background
Web formation is an important process in the production of nonwoven fabrics, which is a process in which filaments formed from a polymer after melt extrusion, spinning, cooling, and drawing are uniformly dispersed and laid on a web forming curtain to form a uniform web.
The upper part of the web former is provided with a drafting device, the lower part of the web former corresponding to a filament outlet of the drafting device is provided with an air suction device, so that the fiber filaments can be uniformly laid on a web forming curtain of the web former under the adsorption action of the air suction device, and then the fiber filaments and the web forming curtain are conveyed to a hot pressing roller by a conveying belt to be hot-pressed into a web.
The existing web former has the problems that wind power can be generated under the high-speed rotation of a hot pressing roller, so that fiber filaments on a conveyor belt are floated, and the web forming uniformity of the fiber filaments is influenced; and when the machine is serious, the machine can be damaged due to winding on a hot pressing roller, and the work of the web former is seriously influenced; in order to avoid the fiber filaments from floating in production, the conveying speed of the conveyor belt and the rotating speed of the hot-pressing roller can only be reduced, so that the production efficiency is reduced.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide an air suction device of a web former, which ensures that fiber yarns can be uniformly distributed and does not influence the work of a hot pressing roller.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air suction device of a web former comprises a first air suction device and a second air suction device which are arranged below a conveyor belt of the web former;
the first air suction device comprises a first air suction fan, a first air suction box and a first air suction pipeline, the first air suction pipeline is arranged below the conveying belt corresponding to the filament outlet of the drafting device, the first air suction fan is connected with one end of the first air suction box, the other end of the first air suction box is connected with one end of the first air suction pipeline, and the other end of the first air suction pipeline is arranged towards the conveying belt of the net forming machine;
the second air suction device comprises a second air suction machine, a second air suction box and a second air suction pipeline, wherein the second air suction pipeline is arranged on one side of the first air suction pipeline, the second air suction machine is connected with one end of the second air suction box, the other end of the second air suction box is connected with one end of the second air suction pipeline, and the other end of the second air suction pipeline is arranged towards the conveying belt of the lapper.
Preferably, the first suction duct includes a first straight tube portion connected to the first suction box and a first open portion provided below the conveyor belt, the first straight tube portion is communicated with the first open portion, the first straight tube portion is located below the first open portion, and the first open portion extends from a central axis of the first open portion to both sides.
Preferably, the radian of the two sides of the first opening part is the same as the radian of the position, close to the conveyor belt, of the supporting roller of the web forming machine.
Preferably, the second air suction pipeline comprises a second straight cylinder part connected with the second air suction box and a second open part arranged below the conveyor belt, the second straight cylinder part is communicated with the second open part, the second straight cylinder part is located below the second open part, and the second open part extends towards two sides from the central axis of the second open part.
Preferably, the radian of the two sides of the second opening part is the same as the radian of the position, close to the conveyor belt, of the supporting roller of the web forming machine.
By adopting the design scheme, the invention has the beneficial effects that: a first air suction pipeline is arranged below the lapper corresponding to the yarn outlet of the yarn pulling device, so that the fiber yarns sprayed out of the yarn outlet of the yarn pulling device can be uniformly laid on a lapper forming curtain of the lapper under the adsorption action of a first air suction device; the second air suction pipeline is arranged below one side of the hot pressing roller, which is far away from the first air suction pipeline, so that the cellosilk on the web forming curtain cannot float due to wind power generated by high-speed rotation of the hot pressing roller when the cellosilk goes out of the hot pressing roller, the condition that the machine is damaged due to the fact that the hot pressing roller is wound by the cellosilk is effectively avoided, and the uniformity of the cellosilk in the web forming process can be guaranteed; meanwhile, the conveying speed of a conveying belt of the web former and the rotating speed of the hot-pressing roller can be increased, and the production efficiency of the web former is effectively improved;
furthermore, the first open part extends towards two sides from the central axis of the first open part, and the air suction opening of the first air suction pipeline is enlarged, so that the fiber yarns entering the web former can be effectively adsorbed on the web forming curtain;
furthermore, the second open part extends towards two sides from the central axis of the second open part, and the air suction opening of the first air suction pipeline is enlarged, so that fibers subjected to hot pressing by the hot pressing roller can be effectively adsorbed on the net forming curtain, and the fibers cannot float due to high-speed rotation of the hot pressing roller.
Drawings
FIG. 1 is a schematic view of the working principle of the present invention (the arrows shown in the figure indicate the direction of movement of the conveyor belt of the web forming machine);
in the figure: 10. a first air suction device 11, a first air suction machine 12, a first air suction box 13, a first air suction pipeline 131, a first straight cylinder part 132, a first opening part,
20. a second air suction device 21, a second air suction machine 22, a second air suction box 23, a second air suction pipeline 231, a second straight cylinder part 232, a second opening part,
a. conveying belt, b, carrier roller, c, hot pressing roller.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an air suction device of a web former comprises a first air suction device 10 and a second air suction device 20 which are both arranged below a conveyor belt a of the web former, a filament outlet of a drafting device is arranged above a position, corresponding to a position between two carrier rollers b, of the conveyor belt a of the web former, the first air suction device 10 is arranged between the two carrier rollers b of the conveyor belt a of the web former, and the second air suction device 20 is arranged on one side, away from the first air suction device 10, of a hot press roller c of the web former.
The first air suction device 10 comprises a first air suction machine 11, a first air suction box 12 and a first air suction pipeline 13, the first air suction pipeline 13 is arranged below the filament outlet of the web former corresponding to the drafting device, the first air suction machine 11 is connected with one end of the first air suction box 12, the other end of the first air suction box 12 is connected with one end of the first air suction pipeline 13, and the other end of the first air suction pipeline 13 is an air suction opening and is arranged towards the conveying belt a; a first air suction pipeline 13 is arranged below a filament outlet of the filament pulling device of the web former, and an air suction opening of the first air suction pipeline 13 is arranged towards the conveying belt a, so that the fiber filaments can be uniformly laid on a web forming curtain laid on the conveying belt a of the web former under the adsorption effect of the first air suction device 10.
The second air suction device 20 comprises a second air suction machine 21, a second air suction box 22 and a second air suction pipeline 23 arranged on one side of the hot pressing roller c far away from the first air suction pipeline 13, the second air suction machine 21 is connected with one end of the second air suction box 22, the other end of the second air suction box 22 is connected with one end of the second air suction pipeline 23, and the other end of the second air suction pipeline 23 is an air suction opening and is arranged towards the conveying belt a; the second air suction pipeline 23 is arranged on one side, away from the first air suction pipeline 13, of the hot pressing roller c, so that the cellosilk on the conveying belt a cannot float due to wind power generated by high-speed rotation of the hot pressing roller c when the cellosilk goes out of the hot pressing roller c, the condition that the machine is damaged due to winding of the hot pressing roller c by the cellosilk is effectively avoided, and the uniformity of the cellosilk in the web forming process can be ensured; meanwhile, the conveying speed of the conveying belt a of the web former and the rotating speed of the hot-pressing roller c can be increased, and the production efficiency of the web former is effectively improved.
The hot pressing roller c of the present embodiment is disposed above the carrier roller b between the first air suction duct 13 and the second air suction duct 23.
As a preferable mode of the present embodiment, the first air suction duct 13 includes a first straight cylinder portion 131 for connecting with the first air suction box 12 and a first opening portion 132 for being disposed below the conveyor belt a, the first straight cylinder portion 131 is communicated with the first opening portion 132, the first straight cylinder portion 131 is disposed below the first opening portion 132, the first opening portion 132 extends from a central axis of the first opening portion 132 to two sides to form an air suction opening with a diameter larger than that of the first straight cylinder portion 131, where two sides of the first opening portion 132 refer to two sides corresponding to a width direction of the conveyor belt a; the first open portion 132 extends from the central axis of the first open portion 132 to both sides, and the suction opening of the first suction duct 13 is enlarged, so that the fiber filaments entering the web forming machine can be effectively adsorbed on the web forming curtain of the conveyor belt a.
As a preferable mode of the present embodiment, the radian of both sides of the first open portion 132 is the same as the radian of the position where the idler b of the web former approaches the conveyor belt a; so that the side wall of the first opening portion 132 can be close to the carrier roller b as much as possible, so as to ensure that the fiber filaments can be effectively adsorbed when entering the hot-pressing roller c, and cannot float due to wind generated by the high-speed rotation of the hot-pressing roller c.
As a preferable mode of the present embodiment, the second air suction duct 23 includes a second straight cylinder 231 for connecting with the second air suction box 22 and a second open portion 232 for being disposed below the conveyor belt a, the second straight cylinder 231 is communicated with the second open portion 232, the second straight cylinder 231 is disposed below the second open portion 232, the second open portion 232 extends from the central axis of the second open portion 232 to two sides to form an air suction opening with a diameter larger than that of the second straight cylinder 231, where two sides of the second open portion 232 refer to two sides corresponding to the width direction of the conveyor belt a; the suction opening of the first suction duct 23 is enlarged so that the fibers hot-pressed by the hot press roller c can be effectively adsorbed on the conveyor belt a without being floated by the high-speed rotation of the hot press roller c.
As a preferable mode of the present embodiment, the radians of both sides of the second open portion 232 are the same as the radians of the positions where the idlers b of the web former are close to the conveyor belt a; so that one side of the second opening portion 232 close to the hot-pressing roller c can be close to the carrier roller b as much as possible, so as to ensure that the fiber filaments after hot pressing by the hot-pressing roller c can be effectively adsorbed when exiting the hot-pressing roller c.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An induced draft device of lapper, its characterized in that: the device comprises a first air suction device and a second air suction device which are arranged below a conveyor belt of a web former;
the first air suction device comprises a first air suction fan, a first air suction box and a first air suction pipeline, the first air suction pipeline is arranged below the conveying belt corresponding to the filament outlet of the drafting device, the first air suction fan is connected with one end of the first air suction box, the other end of the first air suction box is connected with one end of the first air suction pipeline, and the other end of the first air suction pipeline is arranged towards the conveying belt of the net forming machine;
the second air suction device comprises a second air suction machine, a second air suction box and a second air suction pipeline, wherein the second air suction pipeline is arranged on one side of the first air suction pipeline, the second air suction machine is connected with one end of the second air suction box, the other end of the second air suction box is connected with one end of the second air suction pipeline, and the other end of the second air suction pipeline is arranged towards the conveying belt of the lapper.
2. An induced draft device of a web former as claimed in claim 1, wherein: the first air suction duct includes a first straight tube portion connected to the first air suction box and a first open portion provided below the conveyor belt, the first straight tube portion is communicated with the first open portion, the first straight tube portion is located below the first open portion, and the first open portion extends from a central axis of the first open portion to both sides.
3. An induced draft device of a web former as claimed in claim 2, wherein: the radian of the two sides of the first opening part is the same as that of the position, close to the conveying belt, of the carrier roller of the web former.
4. An induced draft device of a web former as claimed in claim 1, wherein: the second air suction pipeline comprises a second straight cylinder part and a second opening part, the second straight cylinder part is used for being connected with the second air suction box, the second opening part is used for being arranged below the conveyor belt, the second straight cylinder part is communicated with the second opening part, the second straight cylinder part is located below the second opening part, and the second opening part is extended towards two sides from the central axis of the second opening part.
5. An induced draft device of a web former as claimed in claim 4, wherein: the radian of the two sides of the second opening part is the same as that of the position, close to the conveying belt, of the carrier roller of the web former.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010054898.6A CN111118741A (en) | 2020-01-17 | 2020-01-17 | Air suction device of web former |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010054898.6A CN111118741A (en) | 2020-01-17 | 2020-01-17 | Air suction device of web former |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111118741A true CN111118741A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010054898.6A Pending CN111118741A (en) | 2020-01-17 | 2020-01-17 | Air suction device of web former |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111118741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481662A (en) * | 2021-07-28 | 2021-10-08 | 浙江朝隆纺织机械股份有限公司 | Air suction structure of web former |
-
2020
- 2020-01-17 CN CN202010054898.6A patent/CN111118741A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481662A (en) * | 2021-07-28 | 2021-10-08 | 浙江朝隆纺织机械股份有限公司 | Air suction structure of web former |
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