CN212357565U - Variable breadth spinning and melting method non-woven fabric production equipment - Google Patents
Variable breadth spinning and melting method non-woven fabric production equipment Download PDFInfo
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- CN212357565U CN212357565U CN202021219964.2U CN202021219964U CN212357565U CN 212357565 U CN212357565 U CN 212357565U CN 202021219964 U CN202021219964 U CN 202021219964U CN 212357565 U CN212357565 U CN 212357565U
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Abstract
The utility model relates to a spin-melt method non-woven fabric's technical field, in particular to a variable breadth spin-melt method non-woven fabric production facility. The device comprises a screw extruder, a charging barrel, a spray head, an air supply device, a receiving roller, a transition roller, a receiving frame, a tension adjusting roller, a wind-up roller, a receiving frame, a stroke screw, a transmission motor, a roller and a guide rail; the charging barrel is arranged at the upper part of the screw extruder, a discharge port of the screw extruder is connected with a spray head, and the spray head is connected with an air supply device through a pipeline; the lower part of the spray head is provided with a receiving roller which is arranged on a receiving frame, a wind-up roller is arranged on one side of the receiving frame through a square steel pipe bracket, and a transition roller and a tension adjusting roller are arranged between the receiving roller and the wind-up roller; the receiving frame is arranged on the guide rail through the roller, the base is provided with a stroke screw rod and a transmission motor, the lower part of the receiving frame is provided with a nut, the transmission motor rotates the transmission stroke screw rod in the positive direction and the negative direction, and the receiving frame moves back and forth on the guide rail through the transmission of the nut.
Description
Technical Field
The utility model relates to a spin-melt method non-woven's technical field, in particular to variable breadth spin-melt method non-woven production facility.
Background
The prior production process of the non-woven fabric by the spinning and melting method is divided into an intermittent production method and a continuous production method. Along with the change of the times, the technology of domestic non-woven fabrics by a spinning and melting method is rapidly advanced, and the intermittent type mode is basically withdrawn from the historical stage. All of the processes commonly available on the market are continuous processes.
The width of the product produced by the conventional continuous spunmelt nonwoven is determined by the width of the nozzle. The uniformity of the spunmelt nonwoven is determined by the temperature of the hot gas stream, the pressure of the gas, and the uniformity of the temperature and pressure at which the hot material flows. Thus, temperature differences, pressure differences, and airflow stability and dynamics at any point in the 1.6m, 2.4m, 3.2m, or 5.6m width nozzle can cause non-uniformity in the spunmelt nonwoven product. Whereas, relatively, the uniformity and quality of the spunmelt nonwoven product produced by a nozzle having a width of 0.9m or 1.2m is easier to control. Therefore, the equipment precision required by the large-breadth spunmelt non-woven fabric product is higher, which also means that the equipment investment is larger, and the production process is more difficult to control.
Meanwhile, in order to achieve the stability and uniformity of the product in the production process of the large-breadth spunmelt non-woven fabric product, higher requirements are put forward on the melt finger and the melt finger stability of the adopted plastic particles, so that the selection range of the plastic particle raw materials is greatly reduced if a manufacturer selects a high-quality spunmelt non-woven fabric product.
Disclosure of Invention
The utility model aims at the aforesaid weak point, provide a variable breadth spins and melts method non-woven production facility, the advantage of this equipment lies in that the breadth width of the spun non-woven that melts of producing does not receive the influence of shower nozzle width, can adjust own required breadth width wantonly in certain extent. The device can adopt a nozzle with a relatively narrow width, can better control the flowing stability of the thermoplastic material, and can make the spun-melt non-woven fabric products more uniform.
A variable breadth spinning and melting method non-woven fabric production device is realized by adopting the following technical scheme:
a variable-width spinning-melting-method non-woven fabric production device comprises a screw extruder, a charging barrel, a spray head, an air supply device, a receiving roller, a transition roller, a receiving frame, a tension adjusting roller, a winding roller, a receiving frame, a stroke screw, a transmission motor, a roller and a guide rail.
The charging barrel is arranged on the upper part of the screw extruder, the discharge port of the screw extruder is connected with a spray head, the spray head is provided with a plurality of spinneret orifices, and the spray head is connected with an air supply device through a pipeline. The lower part of the spray head is provided with a receiving roller which is arranged on a receiving frame, the winding roller is arranged on one side of the receiving frame through a square steel pipe bracket, and one end of the winding roller is provided with a winding roller transmission motor. A transition roller and a tension adjusting roller are arranged between the receiving roller and the winding roller, and the transition roller and the tension adjusting roller are arranged on a receiving frame. The spinning and melting non-woven fabric passes through the transition roller and the tension adjusting roller in sequence, and the tension of the spinning and melting non-woven fabric is adjusted and controlled. And a cooling air pipe is arranged on one side of the receiving roller and is connected with a cold compressed air source.
The lower part of the receiving frame is provided with a roller, the receiving frame is arranged on a guide rail through the roller, the guide rail is arranged on a machine base, the machine base is provided with a stroke screw rod and a transmission motor, the lower part of the receiving frame is provided with a nut, the nut is matched with the stroke screw rod, the transmission motor rotates the transmission stroke screw rod in the positive direction and the negative direction, and the receiving frame moves back and forth on the guide rail through the transmission of the nut; the ejected fibers are formed into a spunmelt nonwoven having a width on a receiving roll.
The tension adjusting roller is provided with a tension adjusting screw rod and a spring.
The air supply device comprises an air compressor, an air heating tank, an electric heating pipe and an air control valve. An air outlet of compressed air of the air compressor is connected with an air inlet of the air heating tank through a pipeline, an electric heating pipe is arranged in the air heating tank and used for heating the compressed air in the air heating tank, an air outlet of the air heating tank is connected with the spray head through a pipeline, and a compressed air control valve is arranged on the pipeline and used for adjusting and controlling the air inflow of the hot compressed air. The hot compressed air temperature is 180-300 ℃. The air pressure generated by the air compressor is 0.2-0.8 Mp.
The production method of the variable-width spunmelt nonwoven comprises the following steps:
1. pouring the thermoplastic polymer into the barrel; heating and extruding by a screw extruder; the heating temperature is 180-300 ℃.
2. Extruding the molten thermoplastic polymer to a nozzle, extruding the molten thermoplastic polymer through a spinneret orifice of the nozzle, passing high-pressure high-temperature hot air sent out by air supply devices on two sides of the nozzle through air gaps on two sides of the nozzle, and stretching the molten thermoplastic polymer sprayed out from the spinneret orifice of the nozzle to form fine fibers;
3. the fibers are sprayed onto the receiving roller and cooled by cold compressed air sprayed from the receiving roller, and the receiving frame drives the stroke screw and the nut to move back and forth by the transmission motor while spraying, so that the sprayed fibers form a spun-melt non-woven fabric with a certain width on the receiving roller;
4. the spinning and melting non-woven fabric is tensioned by installing a transition roller and a tension adjusting roller on a receiving frame to control the tension, and then the spinning and melting non-woven fabric with the formed width is wound by a winding roller.
The distance that the receiving carriage moves back and forth determines the width of the product. The effective width of the receiving cylinder is the maximum width of the spunmelt nonwoven produced by this apparatus.
The thermoplastic polymer material suitable for the utility model is various, and can be polypropylene, polyethylene glycol terephthalate, polybutylene terephthalate, elastomer such as TPE, TPU and other polymers; thermoplastic polymer melt means that the MI varies from 20MI to 1600 MI.
The spray head of the utility model adopts a narrow spray head, and the width is 0.2-0.8 m; its advantages are easy machining, low cost and easy control of uniform flow of thermoplastic polymer. The spinneret orifice of the nozzle is generally 0.05mm-0.5 mm.
The receiving frame, the receiving roller, the tension adjusting roller and the winding roller are integrally moved back and forth. The receiving frame is formed by welding 10 cm-10 cm square steel pipes, and the receiving roller, the transition roller, the tension adjusting roller and the winding roller are fixed on the receiving frame; the receiving frame is driven by a transmission motor to move a stroke screw rod and a nut back and forth under the action of a force F; 4 rollers are arranged on the receiving frame and can do reciprocating linear motion along the guide rail; the reciprocating distance of the receiving frame is adjusted by setting the reciprocating stroke distance of the stroke screw rod and the nut, so that the width of the spun-melt non-woven fabric is determined.
The equipment for producing the variable-width spun-melt non-woven fabric has the advantages that the width of the produced spun-melt non-woven fabric is not influenced by the width of a spray head, and the width of the required width can be adjusted at will within a certain range.
The device can adopt a nozzle with a relatively narrow width, can better control the flowing stability of the thermoplastic material, and can make the spun-melt non-woven fabric products more uniform.
The difficulty of processing precision is greatly reduced by the spray head with narrow width, the cost of the produced spray head is lower and is 1/30 of the normal production cost of the large spray head, and therefore plasticity is strong when the spray head is produced.
Because the cooling air pipe is arranged on one side of the receiving roller and is connected with the cold compressed air source, the spun and melted non-woven fabric can be quickly cooled and shaped on the receiving roller, and the production efficiency is greatly improved.
Drawings
The invention will be further explained with reference to the drawings:
FIG. 1 is a schematic view of a variable-width spunmelt nonwoven production apparatus.
FIG. 2 is a schematic view of a variable-width spunmelt nonwoven production process and apparatus.
In the figure: 1. the device comprises a screw extruder, 2, a charging barrel, 3, a spray head, 4, a receiving roller, 5, fibers, 6, an air heating tank, 7, an electric heating pipe, 8, an air compressor, 9, a tension adjusting roller, 10, a winding roller, 11, a receiving frame, 12, a guide rail, 13, a compressed air control valve, 14, a machine base, 15, a winding roller transmission motor, 16, a transition roller, 17, a cooling air pipe, 18 and a spun-melt non-woven fabric; 11-1 parts of square steel tube supports, 11-2 parts of rollers, 11-3 parts of nuts, 11-4 parts of transmission motors, 11-5 parts of travel screws.
Detailed Description
Referring to attached drawings 1 and 2, the variable-width spinning and melting method non-woven fabric production equipment comprises a screw extruder (1), a charging barrel (2), a spray head (3), an air supply device, a receiving roller (4), a transition roller (16), a receiving frame (11), a tension adjusting roller (9), a winding roller (10), the receiving frame (11), a stroke screw (11-5), a transmission motor (11-6), a roller (11-2) and a guide rail (12).
The charging barrel (2) is arranged at the upper part of the screw extruder (1), the discharge hole of the screw extruder (1) is connected with a spray head (3), the spray head (3) is provided with a plurality of spinneret orifices, and the spray head (3) is connected with an air supply device through a pipeline. The lower part of the spray head (3) is provided with a receiving roller (4), the receiving roller (4) is arranged on a receiving frame (11), a winding roller (10) is arranged on one side of the receiving frame (11) through a square steel pipe bracket (11-1), and one end of the winding roller (10) is provided with a winding roller transmission motor (15). A transition roller (16) and a tension adjusting roller (9) are arranged between the receiving roller (4) and the winding roller (10), and the transition roller (16) and the tension adjusting roller (9) are arranged on a receiving frame (11). The spun-melt non-woven fabric (18) passes through the transition roller (16) and the tension adjusting roller (9) in turn, and the tension of the spun-melt non-woven fabric is adjusted and controlled. And a cooling air pipe (17) is arranged on one side of the receiving roller (4), and the cooling air pipe (17) is connected with a cold compressed air source.
The lower part of the receiving frame (11) is provided with a roller (11-2), the receiving frame (11) is arranged on a guide rail (12) through the roller (11-2), the guide rail (12) is arranged on a machine base 14, the machine base 14 is provided with a stroke screw (11-5) and a transmission motor (11-4), the lower part of the receiving frame (11) is provided with a nut (11-3), the nut (11-3) is matched with the stroke screw (11-5), the transmission motor (11-4) rotates the transmission stroke screw (11-5) in the positive direction and the negative direction, and the receiving frame (11) moves back and forth on the guide rail (12) through the nut transmission; the ejected fibers (5) are formed into a spun-melt nonwoven (18) of a certain width on a receiving drum (4).
The tension adjusting roller (9) is provided with a tension adjusting screw rod and a spring.
The air supply device comprises an air compressor (8), an air heating tank (6), an electric heating pipe (7) and a gas control valve (12). The compressed air outlet of the air compressor (8) is connected with the air inlet of the air heating tank (6) through a pipeline, an electric heating pipe (7) is arranged in the air heating tank (6), the compressed air in the air heating tank (6) is heated, the air outlet of the air heating tank (6) is connected with the spray head (3) through a pipeline, and a compressed air control valve (13) is arranged on the pipeline and can adjust and control the air inflow of the hot compressed air. The hot compressed air temperature is 180-300 ℃. The air pressure generated by the air compressor (8) is 0.2-0.8 Mp.
The production method of the variable-width spunmelt nonwoven comprises the following steps:
1. thermoplastic polymer is poured into the charging barrel (2); heating and extruding through a screw extruder (1); the heating temperature is 180-300 ℃.
2. Extruding a molten thermoplastic polymer into a spray head (3); the molten thermoplastic polymer is extruded through the orifices of the nozzle (3); the high-pressure high-temperature hot air sent out by the air supply devices on the two sides of the spray head (3) passes through the air gaps on the two sides of the spray head (3) to stretch the molten thermoplastic polymer sprayed out from the spinneret orifice of the spray head (3) to form fine fibers (5);
3. the fibers (5) are sprayed onto the receiving roller (4) and are cooled by cold compressed air sprayed from the receiving roller (4); when in injection, the receiving frame (11) is driven by the transmission motor (11-4) to drive the stroke screw rod (11-5) and the nut (11-3) to move back and forth; forming the ejected fibers (5) into a spunmelt nonwoven having a width on a receiving roll (4);
4. the spun-melt non-woven fabric (18) is tensioned by a transition roller (16) and a tension adjusting roller (9) arranged on a receiving frame (11) to control the tension, and then the spun-melt non-woven fabric (18) with the formed width is wound by a winding roller (10).
The distance of the receiving carriage (11) moving back and forth determines the width of the product. The effective width of the receiving cylinder (4) is the maximum width of the spunmelt nonwoven (18) produced by this apparatus.
The thermoplastic polymer material suitable for the utility model is various, and can be polypropylene, polyethylene glycol terephthalate, polybutylene terephthalate, elastomer such as TPE, TPU and other polymers; thermoplastic polymer melt means that the MI varies from 20MI to 1600 MI.
The spray head (3) adopts a narrow spray head, and the width is 0.2-0.8 m; its advantages are easy machining, low cost and easy control of uniform flow of thermoplastic polymer. The spinneret orifice arranged on the nozzle (3) has the diameter of 0.05mm-0.5mm generally.
The receiving frame (11), the receiving roller (5), the tension adjusting roller (9) and the winding roller (10) are integrally moved back and forth in the direction of F force in figure 2. The receiving frame (11) is formed by welding 10 cm-10 cm square steel pipes, and the receiving roller (5), the transition roller (16), the tension adjusting roller (9) and the winding roller (10) are fixed on the receiving frame (11); the receiving frame (11) is driven by a transmission motor (11-4) to drive a stroke screw rod (11-5) and a nut (11-3) to move back and forth under the action of a force F; 4 rollers (11-2) are arranged on the receiving frame, and the rollers (11-2) can do reciprocating linear motion along the guide rail (12); the reciprocating distance of the receiving frame (11) is adjusted by setting the reciprocating stroke distance of the stroke screw rod (11-5) and the nut (11-3), thereby determining the width of the spunmelt non-woven fabric (18).
The utility model discloses a concrete embodiment case of spin-melt non-woven fabrics technology explained:
example 1:
adopting a polypropylene polymer with a melt index of 1200MI, and heating the extruder (1) at a temperature of 200 ℃ and 280 ℃; the spray head adopts a spray head (3) with the width of 0.4m, and the micropores of the spray head (3) are 0.1mm-0.3 mm; the extrusion pressure of the extruder (1) is 10-40 MPa; the air injection temperature at the two sides is 200-290 ℃, and the air pressure generated by the air compressor (8) is 0.2-0.8 Mpa; the stroke screw (11-5) is set to be a one-way stroke distance of 0.5m, and the spinning and melting non-woven fabric (18) with the width of 1m can be formed by moving back and forth through the receiving frame (11); the receiving roller (4) adopts a cylinder made of stainless steel with the width of 2.5 m; after the spun-melt non-woven fabric (18) formed under the process is subjected to a corona classification process of 15kV, the gram weight, the filtration efficiency and the resistance of the spun-melt non-woven fabric are tested to measure the uniformity and the filtration performance of the spun-melt non-woven fabric produced by the equipment.
Example 2:
the polypropylene polymer with the melt index of 40MI is adopted, and the heating temperature of an extruder (1) is 200 ℃ and 280 ℃; the spray head adopts a spray head (3) with the width of 0.4m, and the micropores of the spray head (3) are 0.1mm-0.3 mm; the extrusion pressure of the extruder (1) is 10-40 MPa; the air injection temperature at the two sides is 200-290 ℃, and the air pressure generated by the air compressor (8) is 0.2-0.8 Mpa; the stroke screw (11-5) is set to be a one-way stroke distance of 1.2m, and the spinning and melting non-woven fabric (18) with the width of 2.4m can be formed by moving back and forth through the receiving frame (11); the receiving roller (4) adopts a cylinder made of stainless steel with the width of 2.5 m; after the spun-melt non-woven fabric (18) formed under the process is subjected to a corona classification process of 15kV, the gram weight, the filtration efficiency and the resistance of the spun-melt non-woven fabric (18) are tested to measure the uniformity and the filtration performance of the spun-melt non-woven fabric (18) produced by the equipment.
Examples 1 and 2 properties of gram weight, filtration efficiency and resistance of the spunmelt nonwoven fabrics with different widths produced by adjusting the single stroke distance of different stroke screws (11-5) by using polypropylene polymers with different melt indexes under the same equipment are shown in tables 1 and 2.
The gram weight of the spunmelt nonwoven fabric produced by the processes of example 1 and example 2 is measured by taking 8 sampling points in the transverse direction of a width, and the sampling mode is that the samples are equidistantly sampled from left to right, and the gram weight test standard is referred to GB/T24218.1-2009.
TABLE 1
The filtering efficiency and resistance of the spun-melt non-woven fabrics produced by the processes of example 1 and example 2 are tested by adopting a TSI 8130 device and the wind speed is 5.3cm/s @ 0.3um NaCl; the sampling mode is from left to right equidistant sampling, and 8 sampling points are transversely taken for testing in one breadth.
TABLE 2
Through the analysis of the performance test data of the spunmelt nonwoven fabric produced in the examples 1 and 2, the gram weight uniformity of the product produced by the spunmelt nonwoven fabric process with variable width is good, and the performance in the filtration performance is very uniform; the spunmelt nonwoven product does not generate performance fluctuation along with the change of the width; meanwhile, products obtained by different melt-index thermoplastic polymers can be adopted to obtain similar performances, so that the material range of the thermoplastic polymers which can be selected for the melt-spun non-woven fabric produced by the process is greatly improved, and the use cost of raw materials is reduced.
Claims (8)
1. A variable-width production device for non-woven fabric by a spinning and melting method is characterized by comprising a screw extruder, a charging barrel, a spray head, an air supply device, a receiving roller, a transition roller, a receiving frame, a tension adjusting roller, a wind-up roller, a receiving frame, a stroke screw, a transmission motor, a roller and a guide rail;
the charging barrel is arranged at the upper part of the screw extruder, a discharge port of the screw extruder is connected with a spray head, the spray head is provided with a plurality of spinneret orifices, and the spray head is connected with an air supply device through a pipeline; the lower part of the spray head is provided with a receiving roller, the receiving roller is arranged on a receiving frame, a winding roller is arranged on one side of the receiving frame through a square steel pipe bracket, one end of the winding roller is provided with a winding roller transmission motor, a transition roller and a tension adjusting roller are arranged between the receiving roller and the winding roller, the transition roller and the tension adjusting roller are arranged on the receiving frame, the melt non-woven fabric sequentially passes through the transition roller and the tension adjusting roller, and the tension of the melt non-woven fabric is adjusted and controlled;
the receiving frame is provided with a roller at the lower part, the receiving frame is arranged on a guide rail through the roller, the guide rail is arranged on a base, the base is provided with a stroke screw rod and a transmission motor, the lower part of the receiving frame is provided with a nut, the nut is matched with the stroke screw rod, the transmission motor rotates the transmission stroke screw rod in the positive direction and the negative direction, the receiving frame is driven by the nut to move back and forth on the guide rail, and the sprayed fibers form the spunmelt non-woven fabric with a certain width on a receiving roller.
2. The apparatus of claim 1, wherein the receiving drum is provided with a cooling air duct on one side thereof, the cooling air duct being connected to a source of cold compressed air.
3. The variable-width spunmelt nonwoven production facility of claim 1 wherein said air delivery means comprises an air compressor, an air heating tank, an electric heating tube and a gas control valve; an air outlet of compressed air of the air compressor is connected with an air inlet of the air heating tank through a pipeline, an electric heating pipe is arranged in the air heating tank and used for heating the compressed air in the air heating tank, an air outlet of the air heating tank is connected with the spray head through a pipeline, and a compressed air control valve is arranged on the pipeline and used for adjusting and controlling the air inflow of the hot compressed air.
4. The apparatus as claimed in claim 3, wherein the hot compressed air temperature is 180-300 ℃.
5. The apparatus for producing variable-width spunmelt nonwoven fabric of claim 3 wherein the air pressure produced by the air compressor is 0.2-0.8 Mp.
6. The apparatus for producing a variable-width spunmelt nonwoven fabric according to claim 1 wherein said dancer roll is provided with a dancer screw and a spring.
7. The apparatus for producing a variable-width spunmelt nonwoven fabric according to claim 1 wherein said nozzles are narrow nozzles having a width of 0.2-0.8 m.
8. The apparatus for producing a variable-width spunmelt nonwoven fabric according to claim 1, wherein the nozzle has a nozzle orifice diameter of 0.05mm to 0.5 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021219964.2U CN212357565U (en) | 2020-06-29 | 2020-06-29 | Variable breadth spinning and melting method non-woven fabric production equipment |
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|---|---|---|---|
| CN202021219964.2U CN212357565U (en) | 2020-06-29 | 2020-06-29 | Variable breadth spinning and melting method non-woven fabric production equipment |
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| CN212357565U true CN212357565U (en) | 2021-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919213A (en) * | 2022-04-26 | 2022-08-19 | 中山市格林曼光电科技有限公司 | Production equipment and manufacturing method of non-woven plastic decorative net |
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2020
- 2020-06-29 CN CN202021219964.2U patent/CN212357565U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919213A (en) * | 2022-04-26 | 2022-08-19 | 中山市格林曼光电科技有限公司 | Production equipment and manufacturing method of non-woven plastic decorative net |
| CN114919213B (en) * | 2022-04-26 | 2024-04-26 | 中山市格林曼光电科技有限公司 | Production equipment and manufacturing method of non-woven plastic decorative net |
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