An apparatus for making a nonwoven

Abstract

The utility model discloses a device for preparing non -woven, can make long filament will not yellow and can continuous output long filament, it includes melt glue device and glue spraying device, melt glue device includes first driver, heating cylinder and stirring screw rod, and stirring screw rod presents rotatablely installed in heating cylinder, and the output of first driver is connected in stirring screw rod, and the outside of heating cylinder is equipped with the heating device for heating the different parts of heating cylinder, and first driver drives stirring screw rod rotation to make the glue solution flow in heating cylinder and hit the melted glue solution to glue spraying device, and glue spraying device includes second driver, mounting seat and spinneret, and second driver installs in mounting seat, and spinneret installs in mounting seat, and spinneret has a glue solution temporary storage chamber and the communication of glue solution temporary storage chamber's spinneret export, and second driver stirs the glue solution of inflow glue solution temporary storage chamber, and spinneret still includes a plurality of air exhausts around spinneret export.

Description

Technical Field

[0001] This utility model relates to nonwoven fabric production equipment, and more particularly to an equipment for preparing nonwoven fabrics. Background Technology

[0002] In the production process of nonwoven fabrics, a bundle of filaments is ejected from the spinneret, along with multiple streams of compressed gas. These streams of gas are blown at a certain angle toward the filament bundle, causing it to rotate in a spiral motion. The filament bundle is stretched and eventually falls onto a carrier. The filament bundles on the carrier are connected in a regular or irregular manner, and after solidification, they form a nonwoven fabric.

[0003] The thermoplastic material used to produce the filaments needs to be melted before the filaments are injected. Usually, a reaction vessel is used to melt and keep the thermoplastic material warm. Since the material stays in the reaction vessel for a long time, it is easy to be baked yellow, which will cause the final output filaments to turn yellow and affect the production quality.

[0004] Therefore, there is an urgent need for a device for preparing nonwovens that can prevent filaments from yellowing and can continuously output filaments to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a device for preparing nonwoven fabrics that prevents filaments from turning yellow and allows for continuous output of filaments.

[0006] To achieve the above objectives, the present invention provides an apparatus for preparing nonwoven fabrics, comprising a melting device and a spraying device. The melting device includes a first driver, a heating cylinder, and a stirring screw. The stirring screw is rotatably mounted inside the heating cylinder. The output end of the first driver is connected to the stirring screw. A heating device for heating different parts of the heating cylinder is installed on the outside of the heating cylinder. The first driver drives the stirring screw to rotate, causing the adhesive liquid inside the heating cylinder to flow and ejecting the molten adhesive liquid to the spraying device. The spraying device includes a second driver, a mounting base, and a spinneret. The second driver is mounted on the mounting base, and the spinneret is mounted on the mounting base. The spinneret has an adhesive liquid storage chamber and a spinneret outlet communicating with the adhesive liquid storage chamber. The second driver stirs the adhesive liquid flowing into the adhesive liquid storage chamber. The spinneret also includes multiple air exhaust ports surrounding the spinneret outlet. Compressed air output from the air exhaust ports is loaded onto the adhesive liquid output from the spinneret outlet, causing the adhesive liquid to form filaments in a spiral shape and be applied to the substrate.

[0007] Preferably, the glue spraying device also includes a connecting seat, which is connected to the mounting seat. The connecting seat has a connecting channel that communicates with the glue storage chamber. The glue sprayed from the heating cylinder flows into the glue storage chamber through the connecting channel.

[0008] Preferably, the connector is also provided with a first air injection channel, which is connected to the connector channel. Compressed air is injected from the first air injection channel and pushes the adhesive in the connector channel to the adhesive storage chamber.

[0009] Preferably, the connecting seat is also provided with a second air injection channel. The mounting seat includes an independent upper chamber and a lower chamber. The second driver includes a pneumatic motor and a rotating stirring rod. The second air injection channel is connected to the upper chamber. The pneumatic motor is installed in the upper chamber, the spinneret is installed in the lower chamber, and the rotating stirring rod is installed at the output end of the pneumatic motor and passes through the glue temporary storage chamber. Compressed air is injected from the second air injection channel, thereby driving the pneumatic motor to run. The pneumatic motor drives the rotating stirring rod to rotate and stir the glue in the glue temporary storage chamber.

[0010] Preferably, the device for preparing nonwoven fabrics according to the present invention further includes a docking seat, which has a docking channel. The docking seat is connected to the heating cylinder and the connecting seat respectively. The docking channel is connected to the connecting channel, and the adhesive liquid ejected from the heating cylinder flows through the docking channel and the connecting channel successively.

[0011] Preferably, the docking seat is located directly below the heating cylinder, and the adhesive spraying device is positioned off to one side of the docking seat.

[0012] Preferably, the heating device includes a first heating element, a second heating element, and a third heating element arranged sequentially from top to bottom and fitted over a heating cylinder.

[0013] Preferably, the melting device also includes a hopper, which is connected to the inner cavity of the heating cylinder and is located on one side of the first driver.

[0014] Preferably, the equipment for preparing nonwoven fabrics according to this invention further includes a mounting frame, with the upper end of the heating cylinder mounted on the mounting frame, and the heating cylinder, docking seat, and adhesive spraying device suspended in the air.

[0015] Preferably, the device for preparing nonwoven fabrics according to the present invention further includes a support frame, which is mounted on the mounting frame and positioned above the mounting frame, and the first driver is mounted on the support frame.

[0016] Compared with existing technologies, the equipment for preparing nonwoven fabrics provided by this invention includes a sol-gel device and a spray-gel device. The sol-gel device is used to form a fluid adhesive solution, which is directly injected into the spray-gel device. The molten adhesive solution does not need to wait or be heated for a long time, thus avoiding yellowing caused by prolonged heating and baking. Compressed air output from the air outlet is applied to the adhesive solution output from the spinneret outlet, causing the adhesive solution to form filaments in a spiral shape and be applied to the substrate, thereby producing a nonwoven fabric. Because the molten adhesive solution can be output directly without waiting, the spiral filaments formed after the compressed air output from the air outlet is applied to the output adhesive solution will not yellow, and the filaments can be formed continuously. Attached Figure Description

[0017] Figure 1 This is a perspective view of the apparatus for preparing nonwoven fabrics according to this utility model.

[0018] Figure 2 This is a front view of the apparatus for preparing nonwoven fabrics according to this utility model.

[0019] Figure 3 This utility model relates to an apparatus for preparing nonwoven fabrics. Figure 2 The sectional view obtained after cutting along line segment AA.

[0020] Figure 4 This is a perspective view of the device for preparing nonwoven fabrics according to this utility model when viewed from another angle.

[0021] Figure 5 This is a perspective view of the adhesive spraying device of this utility model.

[0022] Figure 6 This is a side view of the glue spraying device of this utility model.

[0023] Figure 7 This utility model relates to the glue spraying device. Figure 6 The sectional view obtained after cutting the middle BB line segment.

[0024] Figure 8 This is a three-dimensional structural diagram of the spinneret of this utility model.

[0025] Figure 9 This is a schematic diagram of the structure of the spinneret of this utility model during the manufacturing of filaments. Detailed Implementation

[0026] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] like Figures 1 to 9As shown, this utility model discloses an apparatus 100 for preparing nonwoven fabrics, including a sol-gel device 10 and a spraying device 20. The sol-gel device 10 includes a first driver 11, a heating cylinder 12, and a stirring screw 13. The stirring screw 13 is rotatably mounted inside the heating cylinder 12. The output end of the first driver 11 is connected to the stirring screw 13. A heating device 14 for heating different parts of the heating cylinder 12 is mounted on the outside of the heating cylinder 12. The first driver 11 drives the stirring screw 13 to rotate, causing the adhesive liquid inside the heating cylinder 12 to flow and spraying the molten adhesive liquid into the spraying device 20. The spraying device 20 includes a second driver 21, a mounting base 22, and a spinneret 23. The second actuator 21 is mounted on the mounting base 22, and the spinneret 23 is mounted on the mounting base 22. The spinneret 23 has a glue storage chamber 231 and a spinneret outlet 232 communicating with the glue storage chamber 231. The second actuator 21 agitates the glue flowing into the glue storage chamber 231, making the glue in the glue storage chamber 231 more uniform. The spinneret 23 also includes multiple air exhaust ports 233 surrounding the spinneret outlet 232. Compressed air output from the air exhaust ports 233 is applied to the glue output from the spinneret outlet 232, causing the glue to form filaments in a spiral shape and be applied to the carrier.

[0028] The apparatus 100 for preparing nonwoven fabrics provided by this utility model includes a sol-gel device 10 and a spray-glue device 20. The sol-gel device 10 is used to form a fluid adhesive solution, which is directly injected into the spray-glue device 20. The molten adhesive solution does not need to wait or be heated for a long time, thus avoiding yellowing caused by prolonged heating and baking. Compressed air output from the air outlet 233 is loaded onto the adhesive solution output from the spinneret outlet 232, causing the adhesive solution to form filaments in a spiral shape and be applied to a carrier, thereby producing a nonwoven fabric. Because the molten adhesive solution can be output directly without waiting, the spiral filaments formed after the compressed air output from the air outlet 233 is loaded onto the output adhesive solution will not yellow and can be continuously formed. The filament-shaped nonwoven fabric can be made into nonwoven fabric, woven fabric, oblique structure, etc.

[0029] like Figures 1 to 9 As shown, the glue spraying device 20 also includes a connecting seat 24. The connecting seat 24 is connected to the mounting seat 22, and the connecting seat 24 is provided with a connecting channel 241. The connecting channel 241 is connected to the glue temporary storage chamber 231, and the glue sprayed from the heating cylinder 12 flows into the glue temporary storage chamber 231 through the connecting channel 241.

[0030] Furthermore, the connecting seat 24 is also provided with a first air injection channel 242, which is connected to the connecting channel 241. Compressed air is injected from the first air injection channel 242 and pushes the adhesive in the connecting channel 241 to the adhesive temporary storage chamber 231. By injecting compressed air into the first air injection channel 242, the compressed air can push the adhesive, so that the adhesive can flow into the adhesive temporary storage chamber 231 at a faster speed and higher pressure.

[0031] like Figures 1 to 9 As shown, the connecting seat 24 is also provided with a second air injection channel 243. The mounting seat 22 includes an independent upper cavity 221 and a lower cavity 222. The second driver 21 includes a pneumatic motor 211 and a rotating stirring rod 212. The second air injection channel 243 is connected to the upper cavity 221. The pneumatic motor 211 is installed in the upper cavity 221, and the spinneret 23 is installed in the lower cavity 222. The rotating stirring rod 212 is installed at the output end of the pneumatic motor 211 and passes through the glue temporary storage chamber 231. Compressed air is injected from the second air injection channel 243 and then flows into the upper cavity 221, thereby driving the pneumatic motor 211 to run. The pneumatic motor 211 drives the rotating stirring rod 212 to rotate and stir the glue in the glue temporary storage chamber 231 to ensure the uniformity of the glue.

[0032] like Figures 1 to 9 As shown, the apparatus 100 for preparing nonwoven fabrics according to this invention also includes a docking seat 30. The docking seat 30 has a docking channel 31. The docking seat 30 is connected to the heating cylinder 12 and the connecting seat 24, respectively. The docking channel 31 communicates with the connecting channel 241, and the adhesive liquid ejected from the heating cylinder 12 flows sequentially through the docking channel 31 and the connecting channel 241. The docking seat 30 facilitates the connection between the dissolving device 10 and the spraying device 20. Preferably, the docking seat 30 is located directly below the heating cylinder 12, and the spraying device 20 is offset to one side of the docking seat 30.

[0033] like Figures 1 to 9 As shown, the heating device 14 includes a first heating element 141, a second heating element 142, and a third heating element 143 arranged sequentially from top to bottom and fitted over the heating cylinder 12. The first heating element 141, the second heating element 142, and the third heating element 143 apply different heating temperatures to different parts of the heating cylinder 12. When the first heating element 141, the second heating element 142, and the third heating element 143 heat up, they transfer heat to the heating cylinder 12, causing the adhesive particles inside the heating cylinder 12 to melt into a liquid adhesive. Preferably, the third heating element 143 applies the highest temperature to the heating cylinder 12, followed by the second heating element 142, and the first heating element 141 applies the lowest temperature. However, the temperatures applied by all three are not low, remaining around 200°C, with the aim of gradually increasing the temperature of the heating cylinder 12 to better melt the adhesive.

[0034] like Figures 1 to 7 As shown, the sol-gel device 10 also includes a hopper 15. The hopper 15 communicates with the inner cavity of the heating cylinder 12, and the hopper 15 is located on one side of the first driver 11. Using the hopper 15, it is convenient to feed the gel particles into the inner cavity of the heating cylinder 12. Preferably, the first driver 11 is a motor, but it is not limited to this.

[0035] like Figures 1 to 7 As shown, the device 100 for preparing nonwoven fabrics according to this invention also includes a mounting frame 40. The upper end of the heating cylinder 12 is mounted on the mounting frame 40, and the heating cylinder 12, the docking seat 30, and the adhesive spraying device 20 are suspended in the air. Further, the device 100 for preparing nonwoven fabrics according to this invention also includes a support frame 50, which is mounted on the mounting frame 40 and positioned above it. The first driver 11 is mounted on the support frame 50. The support frame 50 is mounted on the mounting frame 40 via connecting uprights 60. Preferably, multiple connecting uprights 60 are provided. The mounting frame 40 and the support frame 50 provide support.

[0036] The following is a brief description of the working process of the device 100 for preparing nonwoven fabrics according to this utility model: The granules are put into the hopper 15. The first driver 11 drives the stirring screw 13 to rotate. The granules are carried from top to bottom by the stirring screw 13. The first heating element 141, the second heating element 142 and the third heating element 143 heat the heating cylinder 12. The heat is transferred to the heating cylinder 12, melting the granules in the heating cylinder 12 into a liquid. The melted liquid flows into the docking channel 31 and then into the connecting channel 241. Compressed air is injected into the first air injection channel 242. The compressed air pushes the liquid in the connecting channel 241 into the liquid storage chamber 231. Compressed air is injected into the second air injection channel 243. The compressed air flows into the upper chamber 221, driving the pneumatic motor 211 to operate. The pneumatic motor 211 drives the rotating stirring rod 212 to rotate, which agitates the adhesive in the adhesive storage chamber 231, making the adhesive in the adhesive storage chamber 231 more uniform. The adhesive in the adhesive storage chamber 231 flows out to the spinneret outlet 232, and compressed air is output from the air exhaust outlet 233. The compressed air output from the air exhaust outlet 233 is applied to the adhesive output from the spinneret outlet 232, causing the adhesive to form filaments in a spiral shape and be applied to the carrier.

[0037] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. An apparatus for preparing nonwoven fabrics, characterized in that: The device includes a melting device and a spraying device. The melting device includes a first driver, a heating cylinder, and a stirring screw. The stirring screw is rotatably mounted inside the heating cylinder. The output end of the first driver is connected to the stirring screw. A heating device for heating different parts of the heating cylinder is installed on the outside of the heating cylinder. The first driver drives the stirring screw to rotate, causing the glue liquid inside the heating cylinder to flow and spraying the molten glue liquid onto the spraying device. The spraying device includes a second driver, a mounting base, and a spinneret. The second driver is mounted on the mounting base, and the spinneret is mounted on the mounting base. The spinneret has a glue liquid storage chamber and a spinneret outlet communicating with the glue liquid storage chamber. The second driver stirs the glue liquid flowing into the glue liquid storage chamber. The spinneret also includes multiple air exhaust ports surrounding the spinneret outlet. Compressed air output from the air exhaust ports is applied to the glue liquid output from the spinneret outlet, causing the glue liquid to form long filaments in a spiral shape and be applied to a carrier.

2. The apparatus for preparing nonwoven fabrics according to claim 1, characterized in that, The glue spraying device also includes a connecting seat, which is connected to the mounting seat. The connecting seat has a connecting channel that communicates with the glue temporary storage chamber. The glue sprayed from the heating cylinder flows into the glue temporary storage chamber through the connecting channel.

3. The apparatus for preparing nonwoven fabrics according to claim 2, characterized in that, The connector is also provided with a first air injection channel, which is connected to the connector channel. Compressed air is injected from the first air injection channel and pushes the adhesive in the connector channel to flow into the adhesive temporary storage chamber.

4. The apparatus for preparing nonwoven fabrics according to claim 2, characterized in that, The connecting seat is also provided with a second air injection channel. The mounting seat includes an independent upper chamber and a lower chamber. The second driver includes a pneumatic motor and a rotating stirring rod. The second air injection channel communicates with the upper chamber. The pneumatic motor is installed in the upper chamber. The spinneret is installed in the lower chamber. The rotating stirring rod is installed at the output end of the pneumatic motor and passes through the adhesive temporary storage chamber. Compressed air is injected from the second air injection channel, thereby driving the pneumatic motor to run. The pneumatic motor drives the rotating stirring rod to rotate and agitate the adhesive in the adhesive temporary storage chamber.

5. The apparatus for preparing nonwoven fabrics according to claim 2, characterized in that, It also includes a docking seat, which has a docking channel. The docking seat is connected to the heating cylinder and the connecting seat respectively. The docking channel is connected to the connecting channel. The adhesive liquid sprayed from the heating cylinder flows through the docking channel and the connecting channel in sequence.

6. The apparatus for preparing nonwoven fabrics according to claim 5, characterized in that, The docking seat is located directly below the heating cylinder, and the adhesive spraying device is offset to one side of the docking seat.

7. The apparatus for preparing nonwoven fabrics according to claim 6, characterized in that, The heating device includes a first heating element, a second heating element, and a third heating element arranged sequentially from top to bottom and fitted over the heating cylinder.

8. The apparatus for preparing nonwoven fabrics according to claim 1, characterized in that, The melting device also includes a hopper, which is connected to the inner cavity of the heating cylinder and is located on one side of the first driver.

9. The apparatus for preparing nonwoven fabrics according to claim 5, characterized in that, It also includes a mounting bracket, on which the upper end of the heating cylinder is mounted, and the heating cylinder, the docking seat and the adhesive spraying device are suspended in the air.

10. The apparatus for preparing nonwoven fabrics according to claim 9, characterized in that, It also includes a support frame, which is mounted on the mounting frame and positioned above the mounting frame, and the first driver is mounted on the support frame.

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