CN211645585U - Airflow net forming device combining negative pressure adsorption with free fall type auto-leveling - Google Patents
Airflow net forming device combining negative pressure adsorption with free fall type auto-leveling Download PDFInfo
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- CN211645585U CN211645585U CN201922216392.6U CN201922216392U CN211645585U CN 211645585 U CN211645585 U CN 211645585U CN 201922216392 U CN201922216392 U CN 201922216392U CN 211645585 U CN211645585 U CN 211645585U
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Abstract
The utility model discloses an air-laid device which combines negative pressure adsorption with free fall type auto-leveling, comprising an air-laid mechanism, wherein the air-laid mechanism comprises a negative pressure adsorption device and a net-forming conveying net; an air suction port of the negative pressure adsorption device is positioned in the net-forming conveying net; a net forming surface is formed on the net forming conveying net at the air suction port, the net forming surface is inclined downwards, vertically downwards or horizontally downwards, and a free falling area is arranged below the net forming surface. By utilizing the structure of the utility model, the thickness of the net is even and the application range is wide.
Description
Technical Field
The utility model relates to an air laying device, especially through negative pressure adsorption combination free fall formula autolevelling air laying device.
Background
In dry nonwoven production processes, air-laying is one of the important forms of web formation, especially for short fiber webs.
At present, the air-laid web mainly comprises a free falling air-laid web, a press-in air-laid web, a suction air-laid web, a closed circulation air-laid web and a press-suction combined air-laid web.
As shown in fig. 1, after the fibers are conveyed to the cylinder 1 by the conveying roller 4, when the cylinder carrying the fibers reaches the wool stripping roller 50 under the rotation of the cylinder, the fibers freely fall onto the output web 6 under the self-gravity of the fibers, and are formed into a web on the output web 6. In this way, if the fibers are not uniformly caught by the cylinder and the falling fibers are disturbed by the flow of the external air and the degree of dispersion of the fibers is not uniform, the gravity is different and the falling time of the fibers is different, the thickness of the web is not uniform in the transverse and longitudinal directions during the web forming process, and thus, the web formation is not uniform.
As shown in fig. 2, the press-in type air-laying device comprises a cylinder 1, a conveying roller 4 positioned at the input side of the cylinder 1, a dust cage 2 positioned at the output side of the cylinder 1, and an output net curtain 6 positioned at the output side of the dust cage 2, wherein a wind blocking roller 5 is arranged at the output end of a net-forming area of the dust cage 2, and the press-in type air-laying device also comprises a fan 3, when the conveying roller 4 conveys fibers onto the cylinder 1, the fibers are brought into the output side of the cylinder 1 under the action of the cylinder 1, the fibers are attached onto the dust cage 2 under the action of press-in type air flow under the action of the fan 3, and under the rotation action of the dust cage 2, the fibers are reversely blocked by the wind blocking roller 5, and are laid on the dust cage 2, and the net-formed is conveyed onto. In this way, as the fibres are laid on the cage by the forced air, they are pressed continuously into the cage, so that, for example, the fibre feed is uneven, the fibres coming from the cylinder are uneven, and, for example, the fibres have different lengths and diameters, different speeds and times leading to the cage and disturbances from the external air flow, which cause uneven laying.
As shown in fig. 3, the suction type air-laying device comprises a cylinder 1, a conveying roller 4 positioned at the input side of the cylinder 1, a dust cage 2 positioned at the output side of the cylinder 1, an output net curtain 6 positioned at the output side of the dust cage 2, a wind shielding roller 5 arranged at the output end of a net forming area of the dust cage 2, and a fan 3. After the fibers are conveyed to the cylinder 1 by the conveying roller 4, the fibers are brought to the output side of the cylinder 1 under the action of the cylinder 1, the fibers are adsorbed to the dust cage 2 under the adsorption action of the fan 3, and under the rotation action of the dust cage 2, the fibers are blocked by the wind blocking roller 5 to form a net on the dust cage 2, and the net is conveyed to the output net curtain 6 after being formed into the net. In this way, as the fibres are laid on the cage by the suction air flow, the fibres are continuously attracted to the cage, so that if the fibres are not uniform from the cylinder, the web of fibres attracted to the cage will be non-uniform, and in particular if the fibres are of different diameters and lengths, and if the time and speed of passage to the cage are different, non-uniform laying will result.
As shown in fig. 4, the closed circulation type air-laying device includes a cylinder 1, a conveying roller 4 located at an input side of the cylinder 1, a dust cage 2 located at an output side of the cylinder 1, an output screen 6 located at an output side of the dust cage 2, a wind shielding roller 5 provided at an output end of a laying area of the dust cage 2, and a fan 3. After the fibers are conveyed to the cylinder 1 by the conveying roller 4, the fibers are brought to the output side of the cylinder 1 under the action of the cylinder 1, the fibers are adsorbed to the dust cage 2 under the pressing-in and adsorption actions of the fan 3, and under the rotation action of the dust cage 2, the fibers are blocked by the wind blocking roller 5 to form a net on the dust cage 2, and the net is conveyed to the output net curtain 6 after being formed into the net. In this way, as the fibers are laid on the dust cage under the action of the press-in type and adsorption type air flows, the fibers are continuously adsorbed on the dust cage, so that if the feeding is uneven, the fibers from the cylinder are uneven, and meanwhile, the fibers are easy to collide with each other and entangle into a mass in the process of pressing and adsorbing the fibers to the dust cage, so that the dispersion degree of the fibers after the web formation is poor, and the web formation is uneven.
As shown in fig. 5, the press-suction combined type air-laying device includes a cylinder 1, a conveying roller 4 located at an input side of the cylinder 1, a dust cage 2 located at an output side of the cylinder 1, an output mesh curtain 6 located at an output side of the dust cage 2, a wind shielding roller 5 provided at an output end of a web forming area of the dust cage 2, and a fan 3. After the conveying roller 4 conveys the fibers to the cylinder 1, the fibers are brought to the output side of the cylinder 1 under the action of the cylinder 1, the fibers are adsorbed to the dust cage 2 under the pressing-in and adsorption actions of the fan 3, the fibers are blocked on the dust cage 2 through the reverse blocking of the wind blocking roller 5 under the rotation action of the dust cage 2, a net is formed on the dust cage 2, the net is conveyed to the output net curtain 6 after being formed, and the wind supplementing opening 1000 is arranged below the dust cage, so that the pressed-in wind flow is larger than the adsorbed wind flow, and therefore, the wind flow is supplemented from the wind supplementing opening. In this way, as the fibres are laid on the cage by the action of the forced and suction jets, the fibres are continuously attracted to the cage, and as such, the situation described with reference to figures 2 to 4 can also occur, resulting in an uneven lay.
Disclosure of Invention
The utility model aims at providing a through negative pressure adsorption combination free fall formula autolevelling air laid device utilizes the utility model discloses a structure, the thickness of netting is even, and application scope is wide.
In order to achieve the aim, the airflow net forming device combining negative pressure adsorption and free fall type auto-leveling comprises an airflow net forming mechanism, wherein the airflow net forming mechanism comprises a negative pressure adsorption device and a net forming conveying net; an air suction port of the negative pressure adsorption device is positioned in the net-forming conveying net; a net forming surface is formed on the net forming conveying net at the air suction port, the net forming surface is inclined downwards, vertically downwards or horizontally downwards, and a free falling area is arranged below the net forming surface.
The working principle of the airflow netting device combining negative pressure adsorption and free falling type auto-leveling is as follows: when the fibers are continuously conveyed to the position of the net-forming conveying net, the fibers are continuously adsorbed to the net-forming surface under the adsorption action of the negative pressure adsorption device, after the fibers are adsorbed to a certain degree on the net-forming surface, the adsorption force of the position where the fibers are adsorbed is larger than that of the position where the fibers are adsorbed, once the negative pressure on the net-forming surface where the fibers are adsorbed is smaller than the gravity of the fibers, the fibers fall into the free falling area at the position where the fibers are adsorbed continuously, and the fibers are continuously adsorbed at the position where the fibers are adsorbed on the net-forming surface, so that the net-forming thickness on the net-forming surface is uniform, and the fiber net is continuously output by the continuously-running net-. The device can be widely applied to the non-woven field, and can also be applied to the spinning fields such as cotton feeding of carding slivering and the like, so that the application range is wide.
Furthermore, the negative pressure adsorption device comprises an air suction pipeline, a negative pressure cavity is arranged in the air suction pipeline, and the negative pressure cavity is provided with an air suction opening and an air outlet; the net-forming conveying net is sleeved outside the air suction pipeline in a rotating mode, the net-forming conveying net is a circular net, and the air suction pipeline and the circular net form a dust cage.
Furthermore, a net curtain which moves synchronously with the net forming conveying net is arranged outside the dust cage, and the net curtain is attached to the net forming surface at the net forming surface.
Furthermore, the net-forming conveying net is a planar annular net curtain.
Furthermore, a wind-shielding roller is arranged at the output end of the net-forming surface, and the running direction of the wind-shielding roller and one side close to the net-forming conveying net is consistent with the moving direction and speed of the net-forming conveying net. By arranging the wind-shielding roller, the phenomenon that the conveyed net is sucked back under the action of negative pressure can be avoided, and the net forming quality is improved.
Furthermore, a carding mechanism is arranged at the input side of the web forming surface. Is used for carding and conveying fibers, and can form a web more uniformly.
Furthermore, the carding mechanism comprises a stripping transfer roller and carding licker-in rollers, the stripping transfer roller is positioned between the carding licker-in rollers and the web forming surface input side, a cleaning roller is arranged above the uppermost carding licker-in roller, the rotating directions of the carding licker-in rollers are the same, and the adjacent carding licker-in rollers have a spacing. The fibers are grabbed by the adjacent carding licker-in rollers and then are carded under the action of the card clothing opposite to the adjacent carding licker-in rollers, the carded fibers are transferred and stripped from the carding licker-in rollers through stripping and transferring rollers, and the stripped fibers are transferred to a net forming surface; the cleaning roller cleans the excessive fibers on the uppermost carding roller, and then the excessive fibers are separated from the cleaning roller. Through the carding of the carding roller, the fibers grabbed by the stripping transfer roller are more uniform and dispersed, and the web forming uniformity can be further improved.
Furthermore, a conveying net curtain is arranged at the input end of the carding licker-in. Thus, for transporting the fibers.
Furthermore, an output curtain is arranged at the output end of the net-forming conveying net. Thus, for outputting the web.
Furthermore, a secondary air-laid mechanism is arranged at the output end of the output curtain.
Drawings
FIG. 1 is a schematic view of a free-fall airlaid web.
Fig. 2 is a schematic view of a press-in airlaid.
Fig. 3 is a schematic view of a suction airlaid.
FIG. 4 is a schematic view of a closed-loop airlaid.
Fig. 5 is a schematic view of a combined pressure and suction airlaid web.
Fig. 6 is a schematic view of embodiment 1 of the present invention.
Fig. 7 is a schematic view of another structure according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of embodiment 2 of the present invention.
Fig. 9 is a schematic view of a transfer lickerin and airlaid mechanism.
FIG. 10 is a schematic view of a carding machine and an airlaid machine.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1.
As shown in fig. 6, the air-laying device using negative pressure adsorption combined with free fall type auto-leveling includes a fiber feeding mechanism 200, a conveying net curtain 300, a carding mechanism, an air-laying mechanism 100 and an output curtain 700.
The fiber feeding mechanism 200 and the conveying net 300 are arranged in sequence according to the conveying direction of the fibers. The output end of the conveying net curtain 300 is provided with a carding mechanism.
The carding mechanism comprises stripping and transferring rollers 500 and carding licker-in rollers 400, wherein the stripping and transferring rollers 500 are positioned between the carding licker-in rollers 400 and the input side of the web forming surface 101, cleaning rollers 600 are arranged above the uppermost carding licker-in rollers, the rotating directions of the carding licker-in rollers 400 are the same, and the adjacent carding licker-in rollers have a spacing distance. The fibers are carded under the action of the card clothing opposite to the adjacent carding licker-in after being grabbed by the adjacent carding licker-in, the carded fibers are transferred and stripped from the carding licker-in 400 through a stripping and transferring roller 500, and the stripped fibers are transferred to the web forming surface 102; the scrub roller 600 cleans the excess fibers on the uppermost carding wire roller, and then the excess fibers are separated from the scrub roller 600. Through the carding of the carding roller 400, the fibers grabbed by the stripping transfer roller 500 are more uniform and dispersed, and the web forming uniformity can be further improved.
The air-laying mechanism 100 comprises a negative pressure adsorption device 10 and a web-forming conveying net 60.
The negative pressure adsorption device comprises an air suction pipeline 11, an air suction pipe 12 connected to the air outlet of the air suction pipeline, and a fan connected to the air suction pipe 12. The air suction pipe 11 has a negative pressure cavity 111 therein, and the negative pressure cavity 111 has an air suction opening 101 and an air outlet 112.
A net-forming conveying net 60 is sleeved outside the air suction pipeline 11 in a rotating manner, the net-forming conveying net 60 is a circular net, and the air suction pipeline and the circular net form a dust cage.
A net forming surface 102 is formed on the net forming conveying net at the air suction opening 101, the net forming surface 102 is inclined downwards, vertically downwards or horizontally downwards, in the embodiment, the net forming surface 102 is inclined downwards, the net forming surface is always positioned at the air suction opening 101, and a free falling area 900 is arranged below the net forming surface. And a wind shielding roller 5 is arranged at the output end of the net-forming surface, and the running direction of the wind shielding roller 5 and one side close to the net-forming conveying net is consistent with the moving direction and speed of the net-forming conveying net. An output curtain 700 is arranged at the output end of the net-forming conveying net.
The working principle of the airflow netting device combining negative pressure adsorption and free falling type auto-leveling is as follows: the fibers are fed to the feeding net 300 by the fiber feeding mechanism 200, and the feeding net 300 feeds the fibers to the carding mechanism, so that the fibers are carded by the carding mechanism. When the fibers are continuously conveyed to a dust cage by the stripping and transferring roller 500, the fibers are continuously adsorbed to the web forming surface 102 under the adsorption action of the negative pressure adsorption device, after the fibers are adsorbed to a certain degree on the web forming surface 102, the adsorption force of the position where the fibers are adsorbed is larger than that of the position where the fibers are adsorbed, once the negative pressure on the web forming surface where the fibers are adsorbed is smaller than the gravity of the fibers, the fibers fall into the free falling area at the position, and the positions where the fibers on the web forming surface are thin continuously adsorbed with the fibers, so that the web forming thickness on the web forming surface is uniform; the web is continuously output by a continuously running web transport web. The device can be widely applied to the non-woven field, and can also be applied to the spinning fields such as cotton feeding of carding slivering and the like, so that the application range is wide.
According to the requirement, a secondary air-laid mechanism can be arranged at the output end of the output curtain to enable the finished product to be finer and smoother, and the fiber web can reach the required thickness through secondary laying.
As another structure of this example, as shown in fig. 7, a net curtain 80 moving in synchronization with the web forming conveyor net is provided outside the cage, and the net curtain 80 is attached to the web forming surface at the web forming surface. The mesh of the net curtain 80 can be set to be different from the mesh on the cylinder mould according to the requirement.
As shown in fig. 9, the carding mechanism can be replaced by a transfer lickerin 91.
Of course, the carding unit can be replaced by a variety of known carding units, one of which comprises the cylinder 1 and a transfer taker-in 91 at the output side of the cylinder 1, as shown in fig. 10.
Example 2.
As shown in fig. 8, the air-laying device using negative pressure adsorption combined with free fall type auto-leveling includes a fiber feeding mechanism 200, a conveying net curtain 300, a carding mechanism, an air-laying mechanism 100 and an output curtain 700.
The fiber feeding mechanism 200 and the conveying net 300 are arranged in sequence according to the conveying direction of the fibers. The output end of the conveying net curtain 300 is provided with a carding mechanism.
The carding mechanism comprises stripping and transferring rollers 500 and carding licker-in rollers 400, wherein the stripping and transferring rollers 500 are positioned between the carding licker-in rollers 400 and the input side of the web forming surface 101, cleaning rollers 600 are arranged above the uppermost carding licker-in rollers, the rotating directions of the carding licker-in rollers 400 are the same, and the adjacent carding licker-in rollers have a spacing distance. The fibers are carded under the action of the card clothing opposite to the adjacent carding licker-in after being grabbed by the adjacent carding licker-in, the carded fibers are transferred and stripped from the carding licker-in 400 through a stripping and transferring roller 500, and the stripped fibers are transferred to the web forming surface 102; the scrub roller 600 cleans the excess fibers on the uppermost carding wire roller, and then the excess fibers are separated from the scrub roller 600. Through the carding of the carding roller 400, the fibers grabbed by the stripping transfer roller 500 are more uniform and dispersed, and the web forming uniformity can be further improved.
The air-laying mechanism 100 comprises a negative pressure adsorption device 10 and a web-forming conveying net 60.
The negative pressure adsorption device comprises an air suction pipeline 11 and a fan connected to the air suction pipeline 11. The air suction pipe 11 is provided with a negative pressure cavity 111 therein, and the negative pressure cavity 111 is provided with an air suction opening 101.
The web-forming conveying net 60 is a planar annular net curtain.
A net forming surface 102 is formed on the net forming conveying net at the air suction opening 101, the net forming surface 102 is inclined downwards, vertically downwards or horizontally downwards, in the embodiment, the net forming surface 102 is inclined downwards, the net forming surface is always positioned at the air suction opening 101, and a free falling area 900 is arranged below the net forming surface. And a wind shielding roller 5 is arranged at the output end of the net-forming surface, and the running direction of the wind shielding roller 5 and one side close to the net-forming conveying net is consistent with the moving direction and speed of the net-forming conveying net. An output curtain 700 is arranged at the output end of the net-forming conveying net.
The working principle of the airflow netting device combining negative pressure adsorption and free falling type auto-leveling is as follows: the fibers are fed to the feeding net 300 by the fiber feeding mechanism 200, and the feeding net 300 feeds the fibers to the carding mechanism, so that the fibers are carded by the carding mechanism. When the fibers are continuously conveyed to the web forming surface by the peeling transfer roller 500, the fibers are continuously adsorbed to the web forming surface 102 under the adsorption action of the negative pressure adsorption device, after the fibers are adsorbed to a certain degree on the web forming surface 102, the adsorption force of the position where the fibers are adsorbed is larger than that of the position where the fibers are adsorbed, once the negative pressure on the web forming surface adsorbed with the fibers is smaller than the gravity of the fibers, the fibers fall into the free falling area at the position, and the positions where the fibers are adsorbed on the web forming surface continuously, so that the web forming thickness on the web forming surface is uniform, and the fiber web is continuously output by the continuously running web forming conveying network. The device can be widely applied to the non-woven field, and can also be applied to the spinning fields such as cotton feeding of carding slivering and the like, so that the application range is wide.
According to the requirement, a secondary air-laid mechanism can be arranged at the output end of the output curtain to enable the finished product to be finer and smoother, and the fiber web can reach the required thickness through secondary laying.
As shown in fig. 9, the carding mechanism can be replaced by a transfer lickerin 91.
Of course, the carding unit can be replaced by a variety of known carding units, one of which comprises the cylinder 1 and a transfer taker-in 91 at the output side of the cylinder 1, as shown in fig. 10.
Claims (10)
1. Through negative pressure adsorption combination free fall formula autolevelling's air laid device, including the air laid mechanism, its characterized in that: the air-laid mechanism comprises a negative pressure adsorption device and a laid net conveying net; an air suction port of the negative pressure adsorption device is positioned in the net-forming conveying net; a net forming surface is formed on the net forming conveying net at the air suction port, the net forming surface is inclined downwards, vertically downwards or horizontally downwards, and a free falling area is arranged below the net forming surface.
2. An airlaid device with self leveling by negative pressure adsorption combined free fall according to claim 1 wherein: the negative pressure adsorption device comprises an air suction pipeline, a negative pressure cavity is arranged in the air suction pipeline, and the negative pressure cavity is provided with an air suction opening and an air outlet; the net-forming conveying net is sleeved outside the air suction pipeline in a rotating mode, the net-forming conveying net is a circular net, and the air suction pipeline and the circular net form a dust cage.
3. An airlaid device for self leveling by negative pressure adsorption combined free fall according to claim 2 wherein: the dust cage is externally provided with a net curtain which moves synchronously with the net forming conveying net, and the net curtain is attached to the net forming surface at the net forming surface.
4. An airlaid device with self leveling by negative pressure adsorption combined free fall according to claim 1 wherein: the net-forming conveying net is a planar annular net curtain.
5. An airlaid device with self leveling by negative pressure adsorption combined free fall according to claim 1 wherein: and the wind-shielding roller is arranged at the output end of the net-forming surface, and the running direction of the wind-shielding roller and one side close to the net-forming conveying net is consistent with the moving direction and speed of the net-forming conveying net.
6. An airlaid device with self leveling by negative pressure adsorption combined free fall according to claim 1 wherein: the input side of the net forming surface is provided with a carding mechanism.
7. The airlaid device for self leveling by negative pressure adsorption combined free fall according to claim 6, wherein: the carding mechanism comprises a stripping transfer roller and a carding licker-in, the stripping transfer roller is positioned between the carding licker-in and the web forming surface input side, and a cleaning roller is arranged above the uppermost carding licker-in; the rotating directions of the carding licker-in rollers are the same, the rotating directions of the stripping transfer roller and the carding licker-in rollers are opposite, and the rotating directions of the cleaning roller and the carding licker-in rollers are opposite.
8. An airlaid device with negative pressure adsorption combined free fall self leveling as claimed in claim 7 wherein: the input end of the carding licker-in is provided with a conveying net curtain.
9. An airlaid device with self leveling by negative pressure adsorption combined free fall according to claim 1 wherein: an output curtain is arranged at the output end of the net-forming conveying net.
10. An airlaid formation device by negative pressure adsorption combined free fall type auto-leveling according to claim 9 wherein: the output end of the output curtain is provided with a secondary air-laid mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216392.6U CN211645585U (en) | 2019-12-10 | 2019-12-10 | Airflow net forming device combining negative pressure adsorption with free fall type auto-leveling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922216392.6U CN211645585U (en) | 2019-12-10 | 2019-12-10 | Airflow net forming device combining negative pressure adsorption with free fall type auto-leveling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965204A (en) * | 2019-12-10 | 2020-04-07 | 广州五源新材料集团有限公司 | Net forming device and method for forming self-leveling by suction coating and free fall and product |
-
2019
- 2019-12-10 CN CN201922216392.6U patent/CN211645585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965204A (en) * | 2019-12-10 | 2020-04-07 | 广州五源新材料集团有限公司 | Net forming device and method for forming self-leveling by suction coating and free fall and product |
| CN110965204B (en) * | 2019-12-10 | 2024-10-18 | 广东五源新材料科技集团有限公司 | Auto-leveling web forming device, method and product for suction coating and free falling |
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