Pre-humidifying condensing net structure of spunlace machine

Abstract

The utility model discloses a spunlace machine pre-humidifying condensing net structure, which comprises a net curtain, a negative pressure suction device, a rotary drum, a pre-humidifying spunlace head, a reinforcing spunlace head and a fiber net, the opened fiber net is laid on the outer side of the net curtain, the rotary drum is arranged on the outer side of the fiber net, a fiber net condensing part is formed at the intersection of the fiber net and the rotary drum, and the fiber net condensing part is connected with the reinforcing spunlace head. A pre-wetting spunlace head is arranged at the condensation position of the fiber web, the negative pressure suction device is arranged on the upstream of the pre-wetting spunlace head, and a plurality of reinforcing spunlace heads are arranged on the periphery of the rotary drum. The negative pressure suction device is installed at the corresponding position of the web curtain, air in the fiber web is pumped out, and the fiber web is compressed; then, through the speed difference between the rotation of the rotary drum and the transmission of the web curtain, the fiber web is coagulated at the intersection of the rotary drum and the web curtain, so that the pre-wetting forming effect of the pre-wetting spunlace head on the fiber web is improved; by adjusting the conveying speed of the web curtain and the rotating speed of the rotary drum, the longitudinal and transverse strength ratio of the spunlace non-woven product is properly adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of textiles, and in particular to the technical field of pre-wetting and condensing web structure for hydroentanglement machines. Background Technology

[0002] After being formed, the fiber web is fed into the hydroentangling machine for reinforcement. The first step is pre-humidification. The purpose of pre-humidification is to compact the loose fiber web, remove air from the web, and enable the web to effectively absorb the energy of the water jet after entering the hydroentangling zone, thereby enhancing the entanglement effect of the fiber web.

[0003] Traditional hydroentanglement machines have only one pre-wetting hydroentanglement head in the pre-wetting section. This structure has the following drawbacks: on the one hand, it often cannot meet the requirements when the processed products need higher longitudinal and transverse strength; on the other hand, it cannot adjust the longitudinal and transverse strength ratio of hydroentangled nonwoven products.

[0004] Therefore, developing a pre-humidified condensed web structure that can improve the pre-strengthening effect of spunlace machines and adjust the longitudinal and transverse strength ratio of spunlace nonwoven products to a certain extent has good application value. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a pre-humidified coagulated mesh structure for a hydroentanglement machine, which can solve the above problems.

[0006] To achieve the above objectives, this utility model proposes a pre-humidified condensing web structure for a hydroentanglement machine, comprising a mesh curtain, a negative pressure suction device, a rotating drum, pre-humidified hydroentanglement heads, reinforced hydroentanglement heads, and a fiber web. The outer side of the mesh curtain is covered with an opened fiber web, and the outer side of the fiber web is provided with a rotating drum. The intersection of the fiber web and the rotating drum forms a fiber web condensation point, and a pre-humidified hydroentanglement head is provided at the fiber web condensation point. The negative pressure suction device is located upstream of the pre-humidified hydroentanglement head, and a plurality of reinforced hydroentanglement heads are provided on the outer periphery of the rotating drum.

[0007] Preferably, the three idlers form a triangular structure, and the mesh curtain is fitted onto the idlers to form a circulation loop.

[0008] Preferably, the transmission speed of the mesh curtain and the rotation speed of the drum form a speed difference.

[0009] Preferably, the pre-wetted water jets and the negative pressure suction device are both located inside the mesh curtain.

[0010] The beneficial effects of this utility model are as follows: This utility model extracts air from the fiber web and compresses the fiber web by installing a negative pressure suction device at the corresponding position of the mesh curtain; then, by using the speed difference between the rotation of the drum and the transmission of the mesh curtain, the fiber web is condensed at the intersection of the two, which improves the pre-spinning effect of the pre-wet hydroentanglement head on the fiber web; by adjusting the transmission speed of the mesh curtain and the rotation speed of the drum, the longitudinal and transverse strength ratio of the hydroentangled nonwoven product can be appropriately adjusted.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Net curtain; 2. Negative pressure suction device; 3. Rotary drum; 4. Pre-wetted water jet head; 5. Reinforced water jet head; 6. Fiber web; 7. Fiber web cohesion point; 8. Idler roller. Detailed Implementation

[0014] See Figure 1 A pre-humidified condensing web structure for a hydroentanglement machine includes a mesh curtain 1, a negative pressure suction device 2, a rotating drum 3, pre-humidified hydroentanglement heads 4, reinforced hydroentanglement heads 5, and a fiber web 6. The outer side of the mesh curtain 1 is covered with the loosened fiber web 6, and the outer side of the fiber web 6 is provided with the rotating drum 3. The intersection of the fiber web 6 and the rotating drum 3 forms a fiber web condensation point 7. The fiber web condensation point 7 is provided with the pre-humidified hydroentanglement head 4. The negative pressure suction device 2 is located upstream of the pre-humidified hydroentanglement head 4, and a plurality of reinforced hydroentanglement heads 5 are provided on the outer periphery of the rotating drum 3.

[0015] The three idler rollers 8 form a triangular structure, and the net curtain 1 is sleeved on the idler rollers 8 to form a circulation loop.

[0016] The mesh curtain can be transported forward at a certain speed in a clockwise direction, and the drum can rotate at a certain speed in a clockwise direction. The transport speed of the mesh curtain and the rotation speed of the drum can be adjusted. By adjusting the transport speed of the mesh curtain and the rotation speed of the drum, the speed difference between the mesh curtain and the drum can be obtained, and the longitudinal and transverse strength ratio of the spunlace nonwoven product can be appropriately adjusted.

[0017] The transmission speed of the mesh curtain 1 and the rotation speed of the drum 3 form a speed difference.

[0018] The pre-wetted water jet 4 and the negative pressure suction device 2 are both located inside the mesh curtain 1.

[0019] The formed fiber web output from the carding machine enters the hydroentangled wire curtain and moves forward under the transmission action of the curtain. When the fiber web passes the negative pressure suction device on the curtain, the air inside the fiber web is extracted and the fiber web is compressed. The fiber web continues to move forward. When the fiber web reaches the intersection of the curtain transmission and the drum rotation, due to the speed difference between the curtain transmission and the drum rotation, the fiber web will condense at the intersection and be pre-punched and shaped by the pre-wet hydroentangled heads. The fiber web continues to move forward, and the reinforcing hydroentangled heads on the drum surface come into contact with the curtain. The fiber web is further reinforced and shaped by the reinforcing hydroentangled heads, resulting in a product with better longitudinal and transverse strength. The appropriate number of reinforcing hydroentangled heads can be installed according to the reinforcement requirements.

[0020] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A pre-moistening web-formation structure for a hydroentangling machine, characterized by: The device includes a mesh curtain (1), a negative pressure suction device (2), a rotating drum (3), a pre-wet water jet head (4), a reinforced water jet head (5), and a fiber web (6). The outer side of the mesh curtain (1) is covered with a loosened fiber web (6). The outer side of the fiber web (6) is provided with a rotating drum (3). The intersection of the fiber web (6) and the rotating drum (3) forms a fiber web cohesion area (7). The fiber web cohesion area (7) is provided with a pre-wet water jet head (4). The negative pressure suction device (2) is located upstream of the pre-wet water jet head (4). The outer periphery of the rotating drum (3) is provided with several reinforced water jet heads (5).

2. The pre-moistening and web-formation structure of a hydro-entangling machine according to claim 1, characterized in that: The three rollers (8) form a triangular structure, and the net curtain (1) is fitted on the rollers (8) to form a loop.

3. The pre-moistening and webbing structure of a hydro-entangling machine according to claim 1, wherein: The transmission speed of the mesh curtain (1) and the rotation speed of the drum (3) form a speed difference.

4. The pre-humidified coagulated mesh structure for a hydroentanglement machine as described in claim 1, characterized in that: The pre-wetted water jet (4) and the negative pressure suction device (2) are both located inside the mesh curtain (1).

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