Carding machine net outlet process based on single coacervation and uniaxial stretching and compression copolymerization

Abstract

The invention discloses a carding machine net outlet process based on single coacervation and uniaxial stretching and compression copolymerization. The carding machine net outlet process comprises the following steps: S1, transferring; s2, unidirectional condensation; and S3, out-of-net. On one hand, on the basis of a copolymerization area formed by the single coagulation roller and the stripping roller, the structure of the coagulation roller is optimized (coagulation can be implemented only by a single roller), stretching and compression are implemented in one-way movement so as to enhance the net outlet strength, meanwhile, the influence of the speed is avoided, the high-speed net outlet production requirement can be met, and the production efficiency is improved. The defect that the quality of the fiber web is insufficient due to improper control of the roller speed difference is overcome; on the other hand, net discharging can be performed under the same stripping strength and the same net discharging angle, the thickness and the fiber cohesive force uniformity of the fiber net are improved, the longitudinal-transverse strength ratio of the fiber net is increased, and the net discharging quality is improved.

Claims

1. A carding machine web-making process based on single coagulation and unidirectional stretching and compression copolymerization, characterized in that: It includes the following steps: S1. Transfer The combed fibers are transferred from the cylinder to the lower part of the doffer, and based on the doffer, the fibers are transferred forward and upward to the condensing roller; S2, unidirectional coagulation A single condensing roller is selected for condensation, and the fibers are stretched forward unidirectionally along the condensing roller and enter the copolymerization zone between the single condensing roller and the stripping roller. The fibers are stretched and compressed in the copolymerization zone, and the stripping roller keeps the same moving path to unidirectionally strip the fiber web layer in the copolymerization zone and transfer unidirectionally forward and upward; S3, network outbound Based on the peeling formed by the peeling roller, the fiber web moves forward and downward into between the peeling roller and the nip roller. At the same time, based on the rotation of the nip roller, the fiber web is kept in contact with the nip roller, and the fiber web is synchronously transferred to the outlet channel formed by the nip roller and the circular conveyor belt along with the nip roller, so as to be discharged under the same peeling force and the same outlet angle.

2. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 1, characterized in that: In step S2, the single condensing roller and the stripping roller rotate synchronously, in the same direction and at the same speed.

3. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 1 or 2, characterized in that: In step S2, based on the axial orthographic projection of the single condensing roller, the center of the single condensing roller is located above the rear side of the center of the stripping roller, and the formed copolymerization zone is located above the line connecting the two centers.

4. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 3, characterized in that: The bottom of the copolymerization zone is located on the line connecting the two centers.

5. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 1, characterized in that: In step S3, the surface of the fiber web laminating nip roller is subjected to negative pressure adsorption, and the negative pressure adsorption zone is between the rear side and the bottom of the nip roller, and the roller surface of the nip roller rotates relative to the negative pressure adsorption zone at a constant position.

6. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 5, characterized in that: The negative pressure area used needs to cover the web outlet receiving area formed between the nip roller and the peeling roller.

7. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 6, characterized in that: The center of the nip roller is located below the front side of the center of the stripping roller, and the nip roller includes a hollow roller shaft and a breathable roller rotatably mounted on the roller shaft, wherein a negative pressure component forming a negative pressure area is fixedly installed inside the breathable roller.

8. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 7, characterized in that: The end of the roller shaft is open, and a negative pressure hole connected to the negative pressure area is formed in the circumferential direction. In the transferred fiber web of the nip roller, negative pressure suction is formed based on the end of the roller shaft to keep the negative pressure area in a negative pressure state.

9. The carding web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 8, characterized in that: When the fiber web is transferred by the nip roller, both ends of the roller shaft are simultaneously sucked under negative pressure.

10. The carding machine web-exiting process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 7, characterized in that: The negative pressure assembly includes end sealing plates, upper sealing plates, lower sealing plates and arc-shaped filter plates fixed at both ends of the roller shaft, wherein the edge of the negative pressure cavity formed by the end sealing plates, upper sealing plates and lower sealing plates is sealed based on the arc-shaped filter plates, and air filter holes are formed on the arc-shaped filter plates, and the inner wall of the breathable drum is in contact with the outer side of the arc-shaped filter plates.

11. The carding web process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 10, characterized in that: The lower sealing plate extends vertically downward from the bottom of the roller shaft; the rear end of the upper sealing plate is located above the front side of the outlet network receiving area.

12. The carding web process based on single coagulation and unidirectional stretching and compression copolymerization according to claim 11, characterized in that: The air-permeable roller and the endless conveyor belt move toward each other so as to keep the fiber web that has lost the negative pressure moving forward in the same direction and at the same speed.

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