CN117306115B - Nonwoven fabric spunlacing device and working method thereof - Google Patents
Nonwoven fabric spunlacing device and working method thereof Download PDFInfo
- Publication number
- CN117306115B CN117306115B CN202311594841.5A CN202311594841A CN117306115B CN 117306115 B CN117306115 B CN 117306115B CN 202311594841 A CN202311594841 A CN 202311594841A CN 117306115 B CN117306115 B CN 117306115B
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- water
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- pressurizing
- side plate
- cavity
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 171
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
Abstract
The invention discloses a non-woven fabric water jet device and a working method thereof, and relates to a non-woven fabric water jet technology, comprising a water needle seat, a cylindrical filter screen, a water diversion plate, a water needle plate and a pressure regulating assembly, wherein the water needle seat comprises a top cover, a lower end cover, a left side plate, a right side plate and a sealing piece, the water needle seat is a hollow strip-shaped shell structure formed by encircling the top cover, the lower end cover, the left side plate and the right side plate, and the cylindrical filter screen is assembled in an inner cavity of the water needle seat along the length direction of the water needle seat; the pressure regulating assembly comprises a high-pressure air source, an air distribution chamber, a left pressurizing plate corresponding to the left side plate and a right pressurizing plate corresponding to the right side plate. The invention can continuously pressurize the inner cavity of the water needle seat, thereby stably and effectively improving the pressure of the water needle, being convenient for sharing the load of the high-pressure water pump and improving the stability of the water needling process.
Description
Technical Field
The invention relates to a non-woven fabric hydro-entangled technology, in particular to a non-woven fabric hydro-entangled device and a working method thereof.
Background
In the technical field of textile, the hydro-entangled method is to jet a water needle formed by fine high-pressure water flow through a hydro-entangled head to hydro-entangled the non-woven fabric fiber web, fibers in the non-woven fabric fiber web are mutually entangled and fixed together, the purpose of reinforcing the non-woven fabric is achieved, and the existing non-woven fabric hydro-entangled device is usually directly injected into a high-pressure water source, so that the burden of a water pump is increased, and the use durability and stability of the whole hydro-entangled device are affected.
CN111809311B discloses a nonwoven fabric hydroentangling machine, and the specification of the machine describes that the patent increases the water pressure in the water cavity during hydroentangling by the action of a high-pressure air source, and properly shares the load of a water pump. However, in this patent, the pressing plate can be pressed only during the pressing down of the pressing plate, and the pressing effect cannot be generated when the pressing plate stops the pressing down operation, and the stroke of the pressing plate is very limited, so that the effect of reducing the load of the water pump is slight, and the entanglement effect of the nonwoven fabric web is not favorably improved.
Disclosure of Invention
The invention aims to provide a non-woven fabric water jet device and a working method thereof, which can continuously pressurize the inner cavity of a water jet seat, so as to stably and long-effectively improve the pressure of the water jet, facilitate the load sharing of a high-pressure water pump and improve the stability of a water jet process.
In order to solve the technical problems, the invention provides the following technical scheme: the non-woven fabric spunlace device comprises a water needle seat, a cylindrical filter screen, a water diversion plate, a water needle plate and a pressure regulating assembly, wherein the water needle seat comprises a top cover, a lower end cover, a left side plate, a right side plate and a sealing piece, the water needle seat is of a hollow strip-shaped shell structure formed by encircling the top cover, the lower end cover, the left side plate and the right side plate, and the cylindrical filter screen is assembled in an inner cavity of the water needle seat along the length direction of the water needle seat;
the pressure regulating assembly comprises a high-pressure air source, an air distribution chamber, a left pressurizing plate corresponding to the left side plate and a right pressurizing plate corresponding to the right side plate; the left side plate is provided with a left pressurizing cavity at the left side of the left pressurizing plate, and the right side plate is symmetrically provided with a right pressurizing cavity at the right side of the right pressurizing plate; the left pressurizing plate can slide relative to the left side plate to compress or expand the left pressurizing cavity, the right pressurizing plate can slide relative to the right side plate to compress or expand the right pressurizing cavity, and the left pressurizing plate and the right pressurizing plate are fixedly connected through a connecting rod penetrating through the inner cavity of the water needle seat;
the left pressurizing cavity is communicated with a left water inlet pipe through a joint penetrating through the left side plate, the right pressurizing cavity is communicated with a right water inlet pipe through a joint penetrating through the right side plate, and the left pressurizing cavity and the right pressurizing cavity are both communicated into the inner cavity of the water needle seat through one-way valves;
a sealing piston and a piston rod connected with the sealing piston are arranged in the air distribution chamber, and the air distribution chamber is divided into a piston rod-free cavity and a piston rod cavity by the sealing piston; the air distribution chamber is also provided with an air pipe for accessing a high-pressure air source and a control valve for distributing air pressure to the piston rod-free cavity and the piston rod cavity; the piston rod can extend into the left side plate to be connected to the left pressurizing plate, or can extend into the right side plate to be connected to the right pressurizing plate.
Further, the left side plate and the top cover are formed with a first wall pipe from a left pressurizing cavity to the inner cavity, the right side plate and the top cover are formed with a second wall pipe from a right pressurizing cavity to the inner cavity, the one-way valve is respectively assembled on the first wall pipe and the second wall pipe, the first wall pipe and the second wall pipe are intersected with a communication hole which is formed in the top cover and points to the center of the cylindrical filter screen, and the communication hole is communicated with the inside of the cylindrical filter screen through the communication pipe assembled by threads.
Further, the lower end cover is provided with a clamping groove for assembling the water needle plate, a jet port is arranged corresponding to the water needle hole arranged on the water needle plate, and the water diversion plate is arranged in the water needle seat between the cylindrical filter screen and the water needle plate.
Further, both ends of the water diversion plate are fixedly connected to the left pressurizing plate and the right pressurizing plate, and the water diversion plate is in an arch bridge shape which arches towards the cylindrical filter screen.
Further, the piston rod-free chamber and the piston rod chamber are respectively provided with a pressure gauge for showing the chamber pressure and an exhaust valve for reducing the internal pressure.
Further, both sides of the left pressurizing plate are provided with stop protrusions for limiting the sliding travel of the left pressurizing plate.
Further, one end of the water needle seat is provided with a main water inlet pipe for injecting water into the cylindrical filter screen.
The invention also provides a working method based on the non-woven fabric hydroentangling device, which comprises the following steps:
conveying the non-woven fabric web to a conveying web curtain through a conveying roller, starting a vacuum dewatering box, adsorbing the non-woven fabric web through the vacuum dewatering box, and carrying out hydroentanglement processing while conveying the non-woven fabric web through the conveying web curtain;
during the water jet processing, high-pressure water is injected through one end of the cylindrical filter screen, and the left water inlet pipe and the right water inlet pipe are connected at the same time; in the working process, the sealing piston is driven by a high-pressure air source to continuously reciprocate, so that the left pressurizing plate and the right pressurizing plate are driven to continuously reciprocate left and right, water in the left pressurizing cavity and the right pressurizing cavity is continuously pressed into the water needle seat to improve the water pressure in the inner cavity of the water needle seat, then the water is shunted by the water dividing plate to reach the water needle plate, and high-pressure water needle is formed by injecting the water needle plate to realize the water jet entanglement of the non-woven fabric fiber net.
Compared with the prior art, the invention has the following beneficial effects: the hydraulic pressure regulating device has a simple structure and is convenient to assemble, the pressure regulating component can continuously maintain the pressurized state of the hydraulic device, and the hydraulic pressure is stably and continuously increased, so that the load of the high-pressure water pump can be practically shared, or the pressurized effect can be improved according to actual production.
Drawings
Fig. 1 is a schematic structural view of a nonwoven fabric hydroentangling device according to the present invention.
Fig. 2 is a plan view of the nonwoven fabric hydroentangling apparatus of fig. 1.
FIG. 3 is a schematic cross-sectional view of the A-A plane in FIG. 2.
Fig. 4 is an enlarged view of the structure of the cylindrical filter net in fig. 3.
Fig. 5 is an operation state diagram of the nonwoven fabric hydroentangling device of the present invention.
The reference numerals in the figures are:
100. the device comprises a water needle seat, 200 parts of a cylindrical filter screen, 300 parts of a water diversion plate, 400 parts of a water needle plate, 500 parts of a pressure regulating assembly, 600 parts of a main water inlet pipe, 700 parts of a conveying roller, 800 parts of a conveying screen;
110. top cap, 111, communication hole, 112, communication pipe, 120, lower end cap, 121, clamping groove, 122, jet port, 130, left side plate, 131, left pressurizing cavity, 132, left water inlet pipe, 133, first wall pipe, 140, right side plate, 141, right pressurizing cavity, 142, right water inlet pipe, 143, second wall pipe, 150, sealing element, 160, inner cavity, 170, connecting rod, 180, one-way valve,
510. stop boss, 520, gas distribution chamber, 521, sealing piston, 522, piston rod, 523, no piston rod chamber, 524, piston rod chamber, 525, gas tube, 526, control valve, 527, gas discharge valve, 530, left pressure plate, 540, right pressure plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 5, the nonwoven fabric hydroentangling device of the present invention comprises a hydroentangling seat 100, a cylindrical filter screen 200, a water diversion plate 300, a water needle plate 400 and a pressure regulating assembly 500. The water needle stand 100 includes a top cover 110, a lower end cover 120, a left side plate 130, a right side plate 140, and a sealing member 150, and the water needle stand 100 is a hollow strip-shaped shell structure formed by surrounding the top cover 110, the lower end cover 120, the left side plate 130, and the right side plate 140, and the structure can be assembled and locked by bolts, for example, the top cover 110 is provided with two rows of countersunk bolt holes respectively connected with the left side plate 130 and the right side plate 140, and the lower end cover 120 can also be assembled and fixed by bolts.
The cylindrical filter screen 200 is assembled in the inner cavity 160 of the water needle stand 100 along the length direction of the water needle stand 100;
the pressure regulating assembly 500 includes a high pressure air source (not shown), an air distribution chamber 520, a left pressurizing plate 530 corresponding to the left side plate 130, and a right pressurizing plate 540 corresponding to the right side plate 140; wherein, the left side plate 130 is provided with a left pressurizing cavity 131 at the left side of the left pressurizing plate 530; symmetrically, the right side plate 140 is provided with a right pressurizing chamber 141 on the right side of the right pressurizing plate 540; the left pressurizing plate 530 can slide with respect to the left side plate 130 to compress or expand the left pressurizing chamber 131, and the right pressurizing plate 540 can slide with respect to the right side plate 140 to compress or expand the right pressurizing chamber 141, and the left pressurizing plate 530 and the right pressurizing plate 540 are fixedly connected through the connection rod 170 passing through the inner chamber 160 of the water needle stand 100.
The left pressurizing cavity 131 is communicated with the left water inlet pipe 132 through a joint penetrating through the left side plate 130, the right pressurizing cavity 141 is communicated with the right water inlet pipe 142 through a joint penetrating through the right side plate 140, and the left pressurizing cavity 131 and the right pressurizing cavity 141 are communicated into the inner cavity 160 of the water needle stand 100 through the one-way valve 180; the joint may be provided as a one-way joint from the external water supply toward the inside of the apparatus, and the left pressurizing chamber 131 and the right pressurizing chamber 141 are kept in a water drawing state for a long period of time by the supply of the left water inlet pipe 132 and the right water inlet pipe 142.
A sealing piston 521 and a piston rod 522 connected with the sealing piston 521 are arranged in the air distribution chamber 520, and the air distribution chamber 520 is divided into a piston rod-free cavity 523 and a piston rod cavity 524 by the sealing piston 521; the air distribution chamber 520 is also provided with an air pipe 525 for accessing a high-pressure air source, and a control valve 526 for distributing air pressure to the piston rod-free cavity 523 and the piston rod cavity 524; the piston rod 522 can extend into the left side plate 130 to connect to the left compression plate 530 or can extend into the right side plate 140 to connect to the right compression plate 540.
When the pressure regulating assembly 500 is not started, a high-pressure water source is pumped into the cylindrical filter screen 200 through the high-pressure water pump, the high-pressure water enters the inner cavity 160 of the water needle seat 100 outside the cylindrical filter screen 200 through the filter screen, and is split to the water needle plate 400 through the water distribution plate 300, so that a high-pressure water needle is formed and is ejected to perform water jet work. The pressure regulating assembly 500 of the present invention may be activated when it is desired to share the load of a high pressure water pump or to increase the hydraulic pressure as required to produce a particular product.
Specifically, the left side plate 130 is provided with a left pressurizing cavity 131 and a left pressurizing plate 530 inside, while the right side plate 140 is provided with a right pressurizing cavity 141 and a right pressurizing plate 540 inside, and the left pressurizing plate 530 and the right pressurizing plate 540 are fixedly connected through the connecting rod 170. As shown in fig. 3, when the left pressurizing plate 530 is pulled by the piston rod 522 to slide in the left direction, the compression volume of the left pressurizing chamber 131 decreases, and the water in the left pressurizing chamber 131 is compressed through the check valve 180 into the inner chamber 160, so that the water pressure in the inner chamber 160 increases; at the same time, the right pressurizing plate 540 slides to the left, and the volume of the right pressurizing chamber 141 increases to continuously draw water through the right water inlet pipe 142; when the left pressurizing plate 530 is slid in the rightward direction in turn, the right pressurizing chamber 141 is pressurized to reduce the volume, and the water in the right pressurizing chamber 141 is pressurized to enter the inner chamber 160 through the check valve 180, further increasing the water pressure in the inner chamber 160, and at the same time, the left pressurizing chamber 131 is in a water drawing state. The above process is repeated, and the left pressurizing plate 530 and the right pressurizing plate 540 alternately and continuously squeeze water toward the inner chamber 160, so that the water pressure of the hydroentangled water steadily increases.
On the other hand, if the pressing plate in the prior art is adopted to press down through high-pressure gas, on one hand, the hydraulic pressure can be increased only in the pressing down process, and once the pressing plate stops acting, the hydraulic pressure is quickly recovered. On the other hand, if the platen is pressurized by the action of high-pressure gas by continuously moving up and down in a piston manner, the hydroentangled pressure is reduced during the return stroke of the platen, which is disadvantageous for entanglement of the nonwoven fabric web. Therefore, the pressure regulating assembly 500 of the present invention can continuously maintain the pressurized state and stably and continuously increase the hydraulic pressure, so that the load of the high pressure water pump can be practically shared, or the pressurized effect can be improved according to the actual production.
In order to filter the water pumped into the inner chamber 160 by the left pressurizing chamber 131 and the right pressurizing chamber 141 through the cylindrical filter screen 200, the water needle plate 400 is not blocked. The invention forms a first wall pipe 133 from a left pressurizing cavity 131 to the inner cavity 160 on the left side plate 130 and the top cover 110, forms a second wall pipe 143 from a right pressurizing cavity 141 to the inner cavity 160 on the right side plate 140 and the top cover 110, and respectively assembles a one-way valve 180 on the first wall pipe 133 and the second wall pipe 143, wherein the first wall pipe 133 and the second wall pipe 143 are intersected with a communication hole 111 which is arranged on the top cover 110 and is directed at the center of the cylindrical filter screen 200. The communication hole 111 communicates with the inside of the cylindrical filter 200 through the screw-fitted communication pipe 112. In this way, the assembly of the top cover 110, the left side plate 130 and the right side plate 140 is facilitated, and the installation of the cylindrical filter screen 200 is also facilitated, and the sealing member 150 may be disposed at the joint between the top cover 110 and the left side plate 130, and between the top cover 110 and the right side plate 140, and simultaneously seal the first wall pipe 133, the second wall pipe 143, and the inner cavity 160.
In order to facilitate the installation of the water needle plate 400, the lower end cap 120 has a clamping groove 121 for assembling the water needle plate 400, and a jet port 122 is opened corresponding to the water needle hole formed in the water needle plate 400, and the water diversion plate 300 is disposed in the water needle seat 100 between the cylindrical filter screen 200 and the water needle plate 400.
Specifically, the two ends of the water diversion plate 300 are fixedly connected to the left pressurizing plate 530 and the right pressurizing plate 540, and the water diversion plate 300 is in an arch bridge shape that arches toward the cylindrical filter screen 200, so as to improve the compressive strength of the water diversion plate 300 and prevent the water diversion plate 300 from being deformed by water pressure for a long time.
In a preferred embodiment of the present invention, the piston rod-free chamber 523 and the piston rod chamber 524 are provided with a pressure gauge (not shown in the drawings) to show the chamber pressure and an exhaust valve 527 for reducing the internal pressure, respectively. The exhaust valve 527 can be connected with a pipeline to recycle the exhausted high-pressure gas, and meanwhile, the operation safety of the air distribution chamber 520 can be ensured timely according to the state of the pressure gauge.
To further improve the safety of the apparatus, both sides of the left pressurizing plate 530 are provided with stopper protrusions 510 for limiting a sliding stroke thereof, while both sides of the right pressurizing plate 540 are also provided with stopper protrusions 510 for limiting a sliding stroke, to prevent dislocation of the left pressurizing plate 530 and the right pressurizing plate 540 due to excessive hydraulic pressure.
As shown in fig. 1 and 4, one end of the water needle holder 100 is equipped with a main water inlet pipe 600 for injecting water into the cylindrical filter screen 200, and the end of the cylindrical filter screen 200 may be provided with a screw structure engaged with the main water inlet pipe 600, so as to facilitate the assembly of the cylindrical filter screen 200. It should be noted that, in the present invention, the connection between the plurality of communicating pipes 112 and the cylindrical filter screen 200 can play a role in lifting the cylindrical filter screen 200, further improving the stability of the cylindrical filter screen 200 in the working process, and preventing the cylindrical filter screen 200 from shaking or deforming due to the inflow pressure wave. In the assembly process, the upper ends of the plurality of communicating pipes 112 may be fixed on the top cover 110, and the lower ends of the communicating pipes 112 and the cylindrical filter screen 200 may be assembled in place, and then the main water inlet pipe 600 may be screwed to the end of the cylindrical filter screen 200 to complete the assembly; and, the lower end cap 120, the left side plate 130, the right side plate 140 and the top cap 110 may be later surrounded and assembled in place using bolts, the seal 150.
The left and right side plates 130, 140 need to be pre-installed with the left and right pressurizing plates 530, 540, and in some embodiments, in order to facilitate the assembly of the left and right pressurizing plates 530, 540, the left and right pressurizing plates 530, 540 are not integrally formed, but are detachable, for example, they are divided into upper and lower sections, and are assembled by bolts through L-shaped grooves at the center, so that the left and right pressurizing plates 530, 540 can be quickly installed in place.
In addition, the assembly of the piston rod 522, the sealing piston 521, and the assembly of the piston rod 522 and the left pressing plate 530 can be performed by a conventional mechanical assembly method in the prior art, so that the assembly and disassembly of the whole structure are not repeated here.
The invention also provides a working method based on the non-woven fabric hydroentangling device, which comprises the following steps:
conveying the non-woven fabric web to the conveying net curtain 800 through the conveying roller 700, starting a vacuum dewatering box, adsorbing the non-woven fabric web through the vacuum dewatering box, and carrying out hydroentanglement processing while conveying the non-woven fabric web through the conveying net curtain 800;
during the water jet processing, high-pressure water is injected through one end of the cylindrical filter screen 200, and the left water inlet pipe 132 and the right water inlet pipe 142 are connected at the same time; in the working process, the sealing piston 521 is driven to continuously reciprocate by a high-pressure air source, so that the left pressurizing plate 530 and the right pressurizing plate 540 are driven to continuously reciprocate left and right, water in the left pressurizing cavity 131 and the right pressurizing cavity 141 is continuously pressed into the water needle seat 100 to increase the water pressure in the inner cavity 160 of the water needle seat 100, and then the water is shunted by the water diversion plate 300 to reach the water needle plate 400, and the water needle plate 400 is ejected to form a high-pressure water needle to realize the water-jet entanglement of the non-woven fabric fiber web.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The non-woven fabric spunlace device comprises a water needle seat, a cylindrical filter screen, a water diversion plate and a water needle plate, and is characterized by further comprising a pressure regulating assembly, wherein the water needle seat comprises a top cover, a lower end cover, a left side plate, a right side plate and a sealing piece, the water needle seat is a hollow strip-shaped shell structure formed by encircling the top cover, the lower end cover, the left side plate and the right side plate, and the cylindrical filter screen is assembled in an inner cavity of the water needle seat along the length direction of the water needle seat;
the pressure regulating assembly comprises a high-pressure air source, an air distribution chamber, a left pressurizing plate corresponding to the left side plate and a right pressurizing plate corresponding to the right side plate; the left side plate is provided with a left pressurizing cavity at the left side of the left pressurizing plate, and the right side plate is symmetrically provided with a right pressurizing cavity at the right side of the right pressurizing plate; the left pressurizing plate can slide relative to the left side plate to compress or expand the left pressurizing cavity, the right pressurizing plate can slide relative to the right side plate to compress or expand the right pressurizing cavity, and the left pressurizing plate and the right pressurizing plate are fixedly connected through a connecting rod penetrating through the inner cavity of the water needle seat;
the left pressurizing cavity is communicated with a left water inlet pipe through a joint penetrating through the left side plate, the right pressurizing cavity is communicated with a right water inlet pipe through a joint penetrating through the right side plate, and the left pressurizing cavity and the right pressurizing cavity are both communicated into the inner cavity of the water needle seat through one-way valves;
a sealing piston and a piston rod connected with the sealing piston are arranged in the air distribution chamber, and the air distribution chamber is divided into a piston rod-free cavity and a piston rod cavity by the sealing piston; the air distribution chamber is also provided with an air pipe for accessing a high-pressure air source and a control valve for distributing air pressure to the piston rod-free cavity and the piston rod cavity; the piston rod can extend into the left side plate to be connected to the left pressurizing plate, or can extend into the right side plate to be connected to the right pressurizing plate;
the left side plate and the top cover are formed with a first wall pipe from a left pressurizing cavity to the inner cavity, the right side plate and the top cover are formed with a second wall pipe from a right pressurizing cavity to the inner cavity, the one-way valves are respectively assembled on the first wall pipe and the second wall pipe, the first wall pipe and the second wall pipe are intersected with a communication hole which is formed in the top cover and points to the center of the cylindrical filter screen, and the communication hole is communicated with the inside of the cylindrical filter screen through a communication pipe assembled by threads;
the two ends of the water diversion plate are fixedly connected to the left pressurizing plate and the right pressurizing plate, and the water diversion plate is in an arch bridge shape which arches towards the cylindrical filter screen;
one end of the water needle seat is provided with a main water inlet pipe for injecting water into the cylindrical filter screen.
2. The nonwoven fabric hydroentangling device according to claim 1, wherein said lower end cover has a clamping groove for assembling a water needle plate, and jet ports are provided corresponding to water needle holes provided on the water needle plate, said water distribution plate being provided in the water needle seat between the cylindrical filter screen and the water needle plate.
3. The nonwoven fabric hydroentangling device according to claim 1, wherein said piston rod free chamber and piston rod chamber are provided with a pressure gauge for showing the chamber pressure and an exhaust valve for reducing the internal pressure, respectively.
4. The nonwoven fabric hydroentangling device according to claim 1, wherein both sides of said left pressurizing plate are provided with stopper protrusions for limiting a sliding stroke thereof.
5. A method of operating a nonwoven hydroentangling device according to claim 1, characterized by the steps of:
conveying the non-woven fabric web to a conveying web curtain through a conveying roller, starting a vacuum dewatering box, adsorbing the non-woven fabric web through the vacuum dewatering box, and carrying out hydroentanglement processing while conveying the non-woven fabric web through the conveying web curtain;
during the water jet processing, high-pressure water is injected through one end of the cylindrical filter screen, and the left water inlet pipe and the right water inlet pipe are connected at the same time; in the working process, the sealing piston is driven by a high-pressure air source to continuously reciprocate, so that the left pressurizing plate and the right pressurizing plate are driven to continuously reciprocate left and right, water in the left pressurizing cavity and the right pressurizing cavity is continuously pressed into the water needle seat to improve the water pressure in the inner cavity of the water needle seat, then the water is shunted by the water dividing plate to reach the water needle plate, and high-pressure water needle is formed by injecting the water needle plate to realize the water jet entanglement of the non-woven fabric fiber net.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311594841.5A CN117306115B (en) | 2023-11-28 | 2023-11-28 | Nonwoven fabric spunlacing device and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311594841.5A CN117306115B (en) | 2023-11-28 | 2023-11-28 | Nonwoven fabric spunlacing device and working method thereof |
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| CN117306115A CN117306115A (en) | 2023-12-29 |
| CN117306115B true CN117306115B (en) | 2024-01-26 |
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