Non-woven fabric wrinkling method

Abstract

The invention discloses a non-woven fabric wrinkling machine based on pulse airflow vibration and heat effect compositing, which comprises a base rack, an unwinding roller, a conveying roller, a winding roller, a rigid pressing plate, a jet head, a lifting cylinder and a flexible elastic sheet pressing plate, and is characterized in that the unwinding roller, the conveying roller and the winding roller are rotationally mounted on the base rack; the conveying roller is located between the unwinding roller and the winding roller, one end of the rigid pressing plate is rotationally installed on the base rack, one end of the lifting air cylinder is rotationally matched with the rigid pressing plate, the air spraying head is arranged on the rigid pressing plate, and a nozzle of the air spraying head faces the roller face of the conveying roller. One end of the flexible elastic sheet pressing plate is rotationally installed on the rigid pressing plate, a torsional spring is arranged between the rigid pressing plate and the flexible elastic sheet pressing plate, the torsional spring is used for enabling the flexible elastic sheet pressing plate to bounce towards and be tightly attached to the roller surface of the conveying roller, and a gap exists between the rigid pressing plate and the roller surface of the conveying roller.

Description

Technical Field

[0001] The invention relates to the field of non-woven fabric production equipment, in particular to a non-woven fabric wrinkling machine based on the combination of pulse airflow vibration and thermal effect. Background Art

[0002] Non-woven fabrics often require a wrinkling process during production. The main purpose of this wrinkling process is to create wrinkles on the surface to improve the product's adsorption capacity. Traditional wrinkling methods utilize a wrinkling machine, such as that shown in patent publication CN105642747B. This wrinkling machine heats the material to be wrinkled and then rolls it. Because the material is heated before rolling, the fibers on the heated non-woven fabric partially melt. Rolling the molten fibers will cause them to stick to the rollers when rolled. Furthermore, rolling after melting can cause thickness differences in different parts of the non-woven fabric, resulting in uneven thickness. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a non-woven fabric wrinkling machine based on the combination of pulse airflow vibration and thermal effect.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A non-woven fabric wrinkling machine based on a combination of pulse airflow vibration and thermal effect, comprising a base frame, a unwinding roller, a conveying roller, a winding roller, a rigid pressure plate, an air jet head, a lifting cylinder and a flexible spring plate pressure plate, the unwinding roller, the conveying roller and the winding roller are all rotatably mounted on the base frame, and the conveying roller is located between the unwinding roller and the winding roller, one end of the rigid pressure plate is rotatably mounted on the base frame, one end of the lifting cylinder is rotatably matched with the rigid pressure plate, the air jet head is arranged on the rigid pressure plate, and the nozzle of the air jet head faces the roller surface of the conveying roller, one end of the flexible spring plate pressure plate is rotatably mounted on the rigid pressure plate, a torsion spring is arranged between the rigid pressure plate and the flexible spring plate pressure plate, the torsion spring is used to bounce the flexible spring plate pressure plate toward and close to the roller surface of the conveying roller, and there is a gap between the rigid pressure plate and the roller surface of the conveying roller.

[0006] In the wrinkling machine of the present invention, the unwinding roller is used to release the non-woven fabric roll, and the winding roller is used to wind up the non-woven fabric roll, and the conveying roller plays the role of conveying the non-woven fabric. In the wrinkling machine of the present invention, the gap between the rigid pressing plate and the roller surface of the conveying roller is a channel for the non-woven fabric to pass through. The specific process is: when the non-woven fabric in a wet state is conveyed to the conveying roller and sticks to the roller surface of the conveying roller, the rigid pressing plate and the flexible spring plate pressing plate form a wrinkling cavity. When the non-woven fabric runs into the wrinkling cavity, the pulsed hot air flow ejected by the nozzle is blown onto the non-woven fabric. The pulsed hot air flow wrinkles the surface of the non-woven fabric and dries it at the same time. At the same time, the flexible spring plate pressing plate vibrates under the pulse airflow, and the vibrating flexible spring plate pressing plate continuously beats the non-woven fabric. Under the dual action, the non-woven fabric is stacked in the wrinkling cavity, thereby forming wrinkles. Due to the irregular characteristics of the pulse airflow, the formed wrinkles will be tight and irregular.

[0007] In the wrinkling machine of the present invention, the temperature of the hot air ejected from the nozzle is higher than the temperature of the wet non-woven fabric, but the temperature of the hot air is lower than the melting point of the non-woven fabric fibers, and the hot air will not heat the fibers on the non-woven fabric to a melting state.

[0008] In summary, the wrinkling machine of the present invention wrinkles the non-woven fabric by means of an air jet and a flexible spring plate, without heating the non-woven fabric to a molten state.

[0009] The function of the lifting cylinder is to adjust the rotation of the rigid pressing plate to ensure that a wrinkling cavity can be formed between the rigid pressing plate, the flexible elastic pressing plate and the conveying roller.

[0010] Optionally, an air flow material starting nozzle is further included, and the air flow material starting nozzle is arranged on the base frame, and the nozzle head and the air flow material starting nozzle are respectively located on both sides of the central axis of the conveying roller.

[0011] The function of the air flow nozzle is to blow the non-woven fabric (which has been wrinkled) attached to the conveyor roller away from the conveyor roller so that the non-woven fabric is no longer attached to the conveyor roller.

[0012] Optionally, it also includes a starting plate, a mounting base and a bracket, the starting plate and the airflow starting nozzle are both mounted on the mounting base, the bracket is arranged on the base frame, one end of the mounting base is rotatably engaged with the base frame, one end of the lifting cylinder is rotatably engaged with the mounting base, and the other end of the lifting cylinder is rotatably engaged with the bracket.

[0013] The nonwoven fabric (after wrinkling) slides along the pick-up plate and away from the conveyor roller. The airflow pick-up nozzle and the pick-up plate are both mounted on a mounting base, one end of which is rotatably mounted on a bracket. The mounting base can rotate around the connection between the two, and the rotation of the mounting base is driven by a lifting cylinder.

[0014] Optionally, it also includes a first tensioning roller and a second tensioning roller, wherein the first tensioning roller and the second tensioning roller are both rotatably arranged on the base frame, the first tensioning roller is located between the unwinding roller and the conveying roller, and the second tensioning roller is located between the conveying roller and the winding roller.

[0015] Optionally, there are multiple nozzles, and all of the nozzles are arranged on the rigid pressing plate, and the nozzles are used to spray hot air.

[0016] Optionally, it also includes a mounting block, which is arranged on the rigid pressure plate. One end of the flexible spring pressure plate is rotatably mounted on the mounting block of the rigid pressure plate, and the two ends of the torsion spring respectively press against the mounting block on the rigid pressure plate and the flexible spring pressure plate.

[0017] Optionally, a peristaltic air pump is further included, and the peristaltic air pump is connected to the air jet head.

[0018] The rigid platen has a groove at the bottom to facilitate the discharge of the air pipe, and a hole in the front of the platen is used to install the air nozzle. The air pipe connects the air nozzle to the peristaltic air pump. The air nozzle, under the control of the multi-valve controller, sprays pulsed air to vibrate the fabric surface and the flexible spring platen.

[0019] Optionally, it further includes an unwinding motor, which is arranged on the base frame, and the unwinding roller and the unwinding motor are matched together through a synchronous belt.

[0020] Optionally, a winding motor is further included, which is arranged on the base frame, and the winding roller and the winding motor are matched together through a synchronous belt.

[0021] Optionally, a conveying motor is further included, and the conveying motor is arranged on the base frame, and the conveying roller and the conveying motor are matched together through a synchronous belt.

[0022] The beneficial effect of the present invention is that the non-woven fabric is wrinkled by means of the air jet head and the flexible spring plate pressing plate, without heating the non-woven fabric to a molten state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of a non-woven fabric wrinkling machine that combines pulse airflow vibration and thermal effects.

[0024] Figure 2 yes Figure 1 Top view of .

[0025] Figure 3 yes Figure 2 Middle transverse cross-sectional view.

[0026] Figure 4 It is a schematic diagram of the wrinkling components.

[0027] Figure 5 It is a schematic diagram of the rigid pressure plate structure.

[0028] Figure 6 It is a schematic diagram of the connection between the flexible pressure plate and the mounting block.

[0029] Figure 7 This is a schematic diagram of the wrinkling principle.

[0030] The reference numerals in the figure are: 1. base frame; 2. unwinding motor; 3. unwinding roller; 4. first tensioning roller; 5. wrinkling mechanism; 6. conveying roller; 7. material picking mechanism; 8. second tensioning roller; 9. mounting bracket; 10. winding roller; 11. conveying motor; 12. winding motor; 501. rigid pressure plate; 502. nozzle; 503. mounting block; 504. lifting cylinder; 505. flexible spring pressure plate; 506. torsion spring; 701. material picking plate; 702. airflow-assisted material picking nozzle; 703. mounting base; 704. bracket. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] As attached Figure 1 ~Attached Figure 7 As shown, a non-woven fabric wrinkling machine based on the combination of pulse airflow vibration and thermal effect includes a base frame 1, a reeling roller 3, a conveying roller 6, a reeling roller 10, a rigid pressing plate 501, an air jet head 502, a lifting cylinder 504 and a flexible spring plate 505. The reeling roller 3, the conveying roller 6 and the reeling roller 10 are all rotatably mounted on the base frame 1, and the conveying roller 6 is located between the reeling roller 3 and the reeling roller 10. One end of the rigid pressing plate 501 is rotatably mounted on the base frame 1. The lifting cylinder 50 One end of the flexible spring plate 505 is rotatably mounted on the rigid pressure plate 501. The air jet head 502 is disposed on the rigid pressure plate 501, with the nozzle of the air jet head 502 facing the roller surface of the conveying roller 6. One end of the flexible spring plate 505 is rotatably mounted on the rigid pressure plate 501. A torsion spring 506 is disposed between the rigid pressure plate 501 and the flexible spring plate 505. The torsion spring 506 is used to spring the flexible spring plate 505 toward and closely adhere to the roller surface of the conveying roller 6. A gap exists between the rigid pressure plate 501 and the roller surface of the conveying roller 6.

[0034] In the wrinkling machine of the present invention, the unwinding roller 3 is used to release the non-woven fabric roll, and the winding roller 10 is used to wind the non-woven fabric roll. The conveying roller 6 plays the role of transferring the non-woven fabric. In the wrinkling machine of the present invention, the gap between the rigid pressing plate 501 and the roller surface of the conveying roller 6 is a channel for the non-woven fabric to pass through. The wrinkling process of the wrinkling machine of the present invention is as follows: when the non-woven fabric in a wet state is conveyed to the conveying roller 6 and is attached to the roller surface of the conveying roller 6, the rigid pressing plate 501 and the flexible spring plate 505 form a wrinkling Cavity, when the non-woven fabric runs into the wrinkling cavity, the pulse hot air flow ejected by the nozzle 502 is blown onto the non-woven fabric, and the pulse hot air flow wrinkles the surface of the non-woven fabric and dries it at the same time. After being dried, the non-woven fabric will remain in a wrinkled state. At the same time, the flexible spring plate pressing plate 505 vibrates under the pulse airflow, and the vibrating flexible spring plate pressing plate 505 continuously beats the non-woven fabric. Under the dual action, the non-woven fabric is stacked in the wrinkling cavity, thereby forming wrinkles. Due to the irregular characteristics of the pulse airflow, the formed wrinkles will be tight and irregular.

[0035] Specifically, in the wrinkling machine of the present invention, the temperature of the hot air ejected from the air jet head 502 is higher than the temperature of the wet nonwoven fabric.

[0036] In summary, the wrinkling machine of the present invention wrinkles the non-woven fabric with the help of the air jet head 502 and the flexible spring plate 505. The entire wrinkling process does not involve rolling the non-woven fabric, nor does it require heating the non-woven fabric to a molten state.

[0037] The function of the lifting cylinder 504 is to adjust the rotation of the rigid pressing plate 501 to ensure that a wrinkling cavity can be formed between the rigid pressing plate 501, the flexible elastic pressing plate and the conveying roller 6.

[0038] As attached Figure 1 ~Attached Figure 7 As shown, it also includes an air flow material nozzle, which is arranged on the base frame 1, and the air jet head 502 and the air flow material nozzle are respectively located on both sides of the central axis of the conveying roller 6.

[0039] The function of the air flow nozzle is to blow the non-woven fabric (which has been wrinkled) attached to the conveying roller 6 away from the conveying roller 6 so that the non-woven fabric is no longer attached to the conveying roller 6.

[0040] As attached Figure 1 ~Attached Figure 7 As shown, it also includes a lifting plate 701, a mounting base 703 and a bracket 704. The lifting plate 701 and the airflow lifting nozzle are both installed on the mounting base 703. The bracket 704 is set on the base frame 1. One end of the mounting base 703 is rotatably matched with the base frame 1, one end of the lifting cylinder 504 is rotatably matched with the mounting base 703, and the other end of the lifting cylinder 504 is rotatably matched with the bracket 704.

[0041] Specifically, the non-woven fabric (after wrinkling) slides off the conveyor roller 6 along the pick-up plate 701. The airflow pick-up nozzle and the pick-up plate 701 are both mounted on a mounting base 703. One end of the mounting base 703 is rotatably mounted on a bracket 704. The mounting base 703 can rotate around the connection between the two. The rotation of the mounting base 703 is driven by the lifting cylinder 504.

[0042] As attached Figure 1 ~Attached Figure 7 As shown, it also includes a first tensioning roller 4 and a second tensioning roller 8. The first tensioning roller 4 and the second tensioning roller 8 are both rotatably arranged on the base frame 1. The first tensioning roller 4 is located between the unwinding roller 3 and the conveying roller 6, and the second tensioning roller 8 is located between the conveying roller 6 and the winding roller 10.

[0043] As attached Figure 1 ~Attached Figure 7 As shown, there are multiple nozzles 502, and all nozzles 502 are arranged on the rigid pressing plate 501, and the nozzles 502 are used to spray hot air.

[0044] As attached Figure 1 ~Attached Figure 7 As shown, it also includes a mounting block 503, which is arranged on the rigid pressure plate 501. One end of the flexible spring pressure plate 505 is rotated and installed on the mounting block 503 of the rigid pressure plate 501, and the two ends of the torsion spring 506 respectively press against the mounting block 503 on the rigid pressure plate 501 and the flexible spring pressure plate 505.

[0045] As attached Figure 1 ~Attached Figure 7 As shown, a peristaltic air pump is also included, which is connected to the jet head 502. In order to enable the jet head 502 to eject hot air, a corresponding heating mechanism can be set on the pipeline or the air inlet of the peristaltic air pump, and the heating mechanism is used to heat the gas to form hot air.

[0046] Specifically, the rigid platen 501 has a groove at the bottom to facilitate the discharge of the air pipe, and a through hole at the front of the platen is used to install the air nozzle 502. The air pipe connects the air nozzle 502 to the peristaltic air pump. Under the control of the multi-valve controller, the air nozzle 502 sprays a pulsed air flow, which vibrates the surface of the fabric and the flexible spring plate 505.

[0047] As attached Figure 1 ~Attached Figure 7 As shown, it also includes an unwinding motor 2, which is arranged on the base frame 1, and the unwinding roller 3 and the unwinding motor 2 are matched together through a synchronous belt.

[0048] As attached Figure 1 ~Attached Figure 7 As shown, it also includes a winding motor 12, which is arranged on the base frame 1, and the winding roller 10 and the winding motor 12 are matched together through a synchronous belt.

[0049] As attached Figure 1 ~Attached Figure 7 As shown, it also includes a conveying motor 11, which is arranged on the base frame 1, and the conveying roller 6 and the conveying motor are matched together through a synchronous belt.

[0050] In this embodiment, the rigid pressing plate 501 , the air jet head 502 , the mounting block 503 , the lifting cylinder 504 , the flexible spring pressing plate 505 and the torsion spring 506 together constitute the wrinkling mechanism 5 .

[0051] In this embodiment, the lifting plate 701 , the airflow-assisted lifting nozzle 702 , the mounting base 703 and the bracket 704 together constitute the lifting mechanism 7 .

[0052] In this embodiment, Figure 3 It is attached Figure 2 Middle horizontal (with attached Figure 2 Schematic diagram of the section plane (taking the direction shown in as an example).

[0053] In this embodiment 5, Figure 5 From the two pictures above and below, Figure 5 The upper middle picture is a side view of the rigid platen (and the nozzle). Figure 5 The lower center image shows a top view of the rigid platen (and the air jet).

[0054] Example 2

[0055] A method for wrinkling a nonwoven fabric, comprising wrinkling a nonwoven fabric using a wrinkling machine as shown in Example 1.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent transformation made by using the contents of the present invention specification, directly or indirectly applied in other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A method for wrinkling a nonwoven fabric, characterized in that: The non-woven fabric wrinkling machine based on the combination of pulse airflow vibration and thermal effect is adopted. The non-woven fabric wrinkling machine based on the combination of pulse airflow vibration and thermal effect includes a base frame, a unwinding roller, a conveying roller, a winding roller, a rigid pressing plate, an air jet head, a lifting cylinder and a flexible spring plate pressing plate. The unwinding roller, the conveying roller and the winding roller are all rotatably mounted on the base frame, and the conveying roller is located between the unwinding roller and the winding roller, one end of the rigid pressing plate is rotatably mounted on the base frame, one end of the lifting cylinder is rotatably matched with the rigid pressing plate, the air jet head is arranged on the rigid pressing plate, and the nozzle of the air jet head faces the roller surface of the conveying roller, one end of the flexible spring plate pressing plate is rotatably mounted on the rigid pressing plate, a torsion spring is arranged between the rigid pressing plate and the flexible spring plate pressing plate, the torsion spring is used to bounce the flexible spring plate pressing plate toward and close to the roller surface of the conveying roller, there is a gap between the rigid pressing plate and the roller surface of the conveying roller, and the air jet head is used to spray hot air; When the wet non-woven fabric is conveyed to the conveyor roller and sticks to the roller surface of the conveyor roller, the rigid pressing plate and the flexible spring plate form a wrinkling cavity. When the non-woven fabric runs into the wrinkling cavity, the pulsed hot air flow ejected by the nozzle is blown onto the non-woven fabric. The pulsed hot air flow wrinkles the surface of the non-woven fabric and dries it at the same time. At the same time, the flexible spring plate vibrates under the pulsed air flow, and the vibrating flexible spring plate continuously beats the non-woven fabric. Under the dual action, the non-woven fabric is stacked in the wrinkling cavity, thereby forming wrinkles; The non-woven fabric is not rolled or heated to a molten state; The unwinding roller is used to release the non-woven fabric roll, the winding roller is used to wind up the non-woven fabric roll, and the conveying roller transfers the non-woven fabric.

2. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes an air flow material nozzle, which is arranged on the base frame, and the nozzle head and the air flow material nozzle are respectively located on both sides of the central axis of the conveying roller; the air flow material nozzle blows the wrinkled non-woven fabric attached to the conveying roller away from the conveying roller.

3. The method for wrinkling a nonwoven fabric according to claim 2, wherein: It also includes a lifting plate, a mounting base and a bracket. The lifting plate and the airflow lifting nozzle are both mounted on the mounting base. The bracket is arranged on the base frame. One end of the mounting base is rotatably engaged with the base frame, one end of the lifting cylinder is rotatably engaged with the mounting base, and the other end of the lifting cylinder is rotatably engaged with the bracket.

4. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes a first tensioning roller and a second tensioning roller, both of which are rotatably arranged on the base frame, the first tensioning roller is located between the unwinding roller and the conveying roller, and the second tensioning roller is located between the conveying roller and the winding roller.

5. The method for wrinkling a nonwoven fabric according to claim 1, wherein: There are a plurality of nozzles, and all of the nozzles are arranged on the rigid pressing plate.

6. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes a mounting block, which is arranged on the rigid pressure plate. One end of the flexible spring plate is rotatably mounted on the mounting block of the rigid pressure plate, and the two ends of the torsion spring respectively resist the mounting block on the rigid pressure plate and the flexible spring plate.

7. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes a peristaltic air pump, which is connected to the air jet head.

8. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes an unwinding motor, which is arranged on the base frame, and the unwinding roller is matched with the unwinding motor.

9. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes a winding motor, which is arranged on the base frame, and the winding roller is matched with the winding motor.

10. The method for wrinkling a nonwoven fabric according to claim 1, wherein: It also includes a conveying motor, which is arranged on the base frame, and the conveying roller is matched with the conveying motor.

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