CN212895290U

CN212895290U - High-efficiency energy-saving spunlace machine for spunlace entanglement process

Info

Publication number: CN212895290U
Application number: CN202020621884.3U
Authority: CN
Inventors: 刘宏刚; 黄晨; 赵奕
Original assignee: Jinhua Tiansheng Nonwoven Technology Co ltd
Current assignee: Zhejiang Tiansheng synthetic fiber technology Co.,Ltd.
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-04-06
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a high-efficiency energy-saving spunlace machine for spunlace entanglement process, which has the technical scheme that the spunlace machine comprises a fiber web, and also comprises a pre-wetting roller, a pre-needling device, a gap bridge device, a reverse spunlace device and a front spunlace device which are arranged in sequence; the pre-needling device comprises a plurality of first spunlace heads and a dewatering box assembly, wherein the dewatering box assembly comprises a first conveying net, a plurality of first suction rollers and a plurality of first box bodies; the bridge device comprises a second conveying net and a plurality of second suction rollers; the reverse side spunlace device comprises a plurality of second spunlace heads, a third conveying net, a plurality of third suction rollers and a plurality of second box bodies arranged below the third conveying net; the front spunlace device comprises a plurality of third spunlace heads used for spunlacing the front of the fiber web, a fourth conveying net used for conveying the fiber web, a plurality of fourth suction rollers matched with the fourth conveying net, and a plurality of third box bodies arranged below the fourth conveying net. The utility model has the advantages of high dehydration efficiency, energy saving and high processing efficiency.

Description

High-efficiency energy-saving spunlace machine for spunlace entanglement process

Technical Field

The utility model relates to a water thorn tangling process units, more specifically the theory that says so, it relates to an energy-efficient water thorn machine that is used for water thorn tangling technology.

Background

The spunlace nonwoven fabric is formed by jetting high-pressure micro water flow onto one or more layers of fiber webs to enable the fibers to be mutually entangled, so that the fiber webs are reinforced and have certain strength, and the obtained fabric is the spunlace nonwoven fabric. The fiber raw materials are widely available, and can be terylene, chinlon, polypropylene fiber, viscose fiber, chitin fiber, superfine fiber, tencel, silk, bamboo fiber, wood pulp fiber, alginate fiber and the like.

The water thorn machine of current production water thorn non-woven fabrics can't carry out two-sided water thorn to the non-woven fabrics well, and the equipment that carries out two-sided water thorn simultaneously exists usually and can't effectively retrieve the dehydration with the fibre web to water moreover, leads to detaining the water yield in the fibre web more, is unfavorable for the fibre very much to tangle, is unfavorable for follow-up stoving, has the machining efficiency ratio lower, the problem of the extravagant energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists among the prior art, provide an energy-efficient water thorn machine for water thorn tangling technology.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: an efficient energy-saving spunlace machine for a spunlace entanglement process comprises a fiber web, and further comprises a pre-wetting roller, a pre-needling device, a bridge device, a reverse spunlace device and a front spunlace device which are sequentially arranged; the pre-wetting roller is arranged above the fiber web; the pre-needling device comprises a plurality of first spunlace heads for spunlacing the front side of the fiber web and a dewatering box assembly arranged below the fiber web, wherein the dewatering box assembly comprises a first conveying net for conveying the fiber web, a plurality of first suction rollers matched with the first conveying net and a plurality of first box bodies arranged below the first conveying net; the bridge device comprises a second conveying net for conveying the fiber web and a plurality of second suction roller cylinders matched with the second conveying net; the back side spunlace device comprises a plurality of second spunlace heads for performing back side spunlace on the fiber web, a third conveying net for conveying the fiber web, a plurality of third suction rollers matched with the third conveying net and a plurality of second box bodies arranged below the third conveying net; the front spunlace device comprises a plurality of third spunlace heads used for spunlacing the front of the fiber web, a fourth conveying net used for conveying the fiber web, a plurality of fourth suction rollers matched with the fourth conveying net, and a plurality of third box bodies arranged below the fourth conveying net.

The working principle is as follows: when in processing, the raw materials are subjected to opening and mixed fiber, carding and cross lapping, then the fiber web to be processed is drawn to a first conveying net of a dewatering box component, the fiber web is conveyed to the lower part of a pre-wetting roller through the first conveying net to be subjected to pre-wetting operation, the first front spunlace is carried out when the fiber web passes through the lower part of a first spunlace head, namely the pre-spunlace operation, in the process, water generated in the pre-wetting operation and the pre-spunlace operation is recovered and dewatered through the cooperation of a first box body and a first suction roller of the dewatering box component, the fiber web is overturned and conveyed to the lower part of a second spunlace head through a bridge device to be subjected to reverse spunlace, the water generated in the process is recovered and dewatered through the cooperation of the second suction roller and a second box body, the front spunlace reinforcement operation is carried out again at a third spunlace head, and the water generated in the process is recovered and dewatered through the third suction roller and a third box body, the processing effect of the fiber web after three times of spunlace is good, the spunlace treatment can be carried out on the front and back surfaces of the fiber web by one-time operation, the processing efficiency is high, compared with the prior art of carrying out the front and back surface spunlace simultaneously, the recovery and dehydration efficiency of water can be effectively improved, residual retained water in the fiber web can be effectively removed in time through dehydration, the influence on fiber entanglement is avoided, and the drying energy consumption is favorably reduced.

Further, first water thorn head, second water thorn head and third water thorn head all include the base and locate the torrent cavity of base top, top-down communicates in proper order in the torrent cavity and is provided with upper water cavity, middle water cavity and lower water cavity, the upper water intracavity is equipped with first filter screen, be equipped with the second filter screen in the middle water cavity, the lower water cavity is equipped with the third filter screen, be equipped with the faller that communicates with lower water cavity on the base, be equipped with the syringe needle on the faller. Adopt the setting of above-mentioned structure, through the first filter screen in the upper water cavity and the third filter screen in lower water cavity, the design of middle water cavity and built-in second filter screen in addition has effectively stabilized high-pressure rivers on the one hand, improves the acupuncture effect of non-woven fabrics, and on the other hand effectively intercepts the impurity in the water for second water thorn head and third water thorn head are all difficult for taking place to block up.

Furthermore, first suction roller, second suction roller, third suction roller and fourth suction roller all include the suction tube and locate the outer mould conjunction of suction tube, be equipped with a plurality of suction holes on the suction tube, be equipped with a plurality of round layer boards that are used for supporting the mould conjunction in the mould conjunction, be equipped with a plurality of refluence holes that communicate with the suction hole on the round layer board. Adopt the setting of above-mentioned structure, compare the condition that flange and rib separation take place easily for the structure that traditional suction roller adopted the honeycomb net, the structure of this kind of mould conjunction and circular supporting plate is difficult to damage, adopts an solitary suction tube to replace the structure of traditional combination roll body moreover, and the structure is simpler, and holistic rigidity is stronger.

Furthermore, the circular screen combining part is of a three-layer screen structure which adopts a punched steel plate screen as a support. The structure of multilayer stratum reticulare can improve the intensity of mould conjunction, compares traditional honeycomb net moreover and makes through the welding, can reduce the cracked problem of welding point and take place, and structural strength is higher.

Further, the suction pipe is made of a stainless steel seamless steel pipe. Adopt the setting of above-mentioned structure, guaranteed the rigidity of whole roller, provide good installation basis for the installation of other relevant rotating members, have better axiality and relative position precision, compare the structure of traditional combination formula roll body, can not cause any influence to overall structure in transportation and hoist and mount process, the siphunculus structure has qualitative promotion to the stability of high-speed operation.

Furthermore, the pre-wetting roller and the first water stabs are supplied with water through a multi-stage pump, a first proportional valve is arranged between the first water stabs and the multi-stage pump, and the pre-wetting roller and the multi-stage pump are provided with the first proportional valve. Every water thorn of tradition all joins in marriage a high pressure water pump, and the power of pump requires differently because of water thorn pressure, and there is the big problem of energy consumption in this kind of mode, and adopts the setting of this structure, supplies water to prewetting roller and first water thorn head through a multistage pump, then every water route is through proportional valve regulated flow and pressure, can effectively reduce the rate of opening of water pump and actual power's consumption, has practiced thrift the electric energy.

Furthermore, the second water stabs are supplied with water through a first plunger pump, a plurality of second proportional valves are arranged between the first plunger pump and the second water stabs, and a first energy accumulator is arranged between the first plunger pump and the second proportional valves. By adopting the structure, all the second water stabs supply water through the first plunger pump, flow and pressure between each water stabs and the first plunger pump are regulated through the second proportional valve, the opening rate of the water pump and the consumption of actual power are effectively reduced, electric energy is saved, and the water pressure of the whole water channel pipeline is guaranteed to be normal through the first energy accumulator.

Furthermore, the third water stabs are supplied with water through a second plunger pump, a plurality of third proportional valves are arranged between the second plunger pump and the third water stabs, and a second energy accumulator is arranged between the second plunger pump and the third proportional valves. By adopting the structure, all the third water stabs supply water through the second plunger pump, flow and pressure between each water stabs and the second plunger pump are adjusted through the third proportional valve, the opening rate of the water pump and the consumption of actual power are effectively reduced, electric energy is saved, and the water pressure of the whole water channel pipeline is guaranteed to be normal through the second energy accumulator.

Furthermore, the pre-wetting roller comprises a cylinder body and a plurality of spray holes uniformly arranged on the cylinder body. The structure is simple by adopting the structure.

Further, the mesh diameter of first filter screen is more than or equal to the maximum mesh diameter of third filter screen, the mesh diameter of second filter screen is less than or equal to the minimum mesh diameter of third filter screen. By adopting the structure, the upper cavity is prevented from directly entering the lower cavity, and the stability of water flow entering the water needle plate is influenced due to unstable pressure caused by high pressure, so that the spunlace effect is influenced.

Compared with the prior art, the high-efficiency energy-saving spunlace machine for the spunlace entanglement process adopting the technical scheme has the following beneficial effects:

1: the processing effect of the fiber web after three times of water jet is good, the water jet treatment can be carried out on the front and back surfaces of the fiber web by one-time operation, and the processing efficiency is high;

2: compared with the prior art of simultaneously carrying out front and back spunlace, the recovery and dehydration efficiency of water can be effectively improved, residual retained water in the fiber web can be effectively removed in time through dehydration, the influence on fiber entanglement is avoided, and the drying energy consumption is favorably reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the water jet head of the present invention;

FIG. 3 is a schematic structural view of the suction drum of the present invention;

figure 4 is a schematic cross-sectional view of a suction roll.

In the figure, 1, a web; 2. pre-wetting a roller; 3. a pre-pricking device; 4. a bridging device; 5. a reverse spunlace device; 6. a front face spunlace device; 31. a first hydroentangling head; 32. a first transport web; 33. a first suction roller; 34. a first case; 41. a second transport web; 42. a second suction roller; 51. a second hydroentangling head; 52. A third transport web; 53. a third suction drum; 54. a second case; 61. a third spunlace head; 62. a fourth transport web; 63. a fourth suction drum; 64. a third box body; 71. a base; 711. a rapid flow cavity; 72. A water feeding cavity; 73. a middle water cavity; 74. a drainage cavity; 75. a first filter screen; 76. a second filter screen; 77. a third filter screen; 78. a water needle plate; 79. a water needle head; 81. a suction tube; 82. a round supporting plate; 83. a large bearing; 84. A self-aligning bearing; 85. a cylinder mould binder; a1, multi-stage pump; a2, first proportional valve; a3, a first plunger pump; a4, a second proportional valve; a5, a first accumulator; a6, second plunger pump; a7, third proportional valve; a8, second accumulator.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the high-efficiency energy-saving spunlace machine for the spunlace process comprises a fiber web 1, and further comprises a prewetting roller 2, a preneedling device 3, a gap bridge device 4, a reverse spunlace device 5 and a front spunlace device 6 which are sequentially arranged, wherein the transmission process of the fiber web 1 is shown in the attached drawings.

Specifically, the pre-wetting roller 2 is a common steel cylinder, a plurality of spray holes are punched in the cylinder, the cylinder is supplied with water through a multistage pump A1 and a water pipe, and a common first proportional valve A2 is adopted to adjust the flow and the water pressure.

Specifically, the pre-needling device 3 comprises a plurality of first spunlace heads 31 for spunlacing the front surface of the fiber web 1 and a dewatering box assembly arranged below the fiber web 1, the dewatering box assembly comprises a common first conveying net 32 for conveying the fiber web 1, a plurality of first suction rollers 33 and a plurality of first box bodies 34 arranged below the first conveying net 32 for storing water, the first suction rollers 33 drive the first conveying net 32 through a common motor drive, and the first conveying net 32 is a common net-shaped conveying belt.

Specifically, the bridging device 4 comprises a common mesh-shaped second conveying net 41 and a plurality of second suction rollers 42, the structure of the second suction rollers 42 is identical to that of the first suction rollers 33, the second suction rollers 42 are also driven by a common motor to drive the second conveying net 41 to rotate, the bridging device 4 is installed at the upper end of the front spunlace device 6, the web 1 is output from the right end of the bridging device 4 and then enters the right end of the front spunlace device 6, and then is output from the left end of the front spunlace device 6, and in the process, the web 1 is conveyed below a second spunlace head 51 of the back spunlace device 5 to perform back spunlace of the web 1.

Specifically, the reverse spunlace device 5 comprises a plurality of second spunlace heads 51 for reverse spunlace of the web 1, a third conveying net 52 for conveying the web 1, a plurality of third suction rollers 53 matched with the third conveying net 52, and a plurality of second boxes 54 arranged below the third conveying net 52, and the reverse spunlace device 5 and the pre-needling device 3 have basically the same structure, except that the number of the second spunlace heads 51 is more than that of the first spunlace heads 31, and the third suction rollers 53 and the first suction rollers 33 have the same structure.

Specifically, the front hydroentangling device 6 includes a plurality of third hydroentangling heads 61 for front hydroentangling the web 1, a fourth conveying web 62 for conveying the web 1, a plurality of fourth suction rollers 63 matched with the fourth conveying web 62, and a plurality of third boxes 64 arranged below the fourth conveying web 62. The front spunlace device 6 and the back spunlace device 5 are identical in structure and are arranged in parallel, and the fiber web 1 is output from the left end of the back spunlace device 5, enters the left end of the front spunlace device 6 and is output from the right end of the front spunlace device 6.

Specifically, first water thorn head 31, second water thorn head 51 and third water thorn head 61 all include base 71 and locate the torrent cavity 711 of base 71 top, top-down communicates in proper order in the torrent cavity 711 and is provided with water feeding cavity 72, middle water cavity 73 and lower water cavity 74, be equipped with first filter screen 75 in the water feeding cavity 72, be equipped with the second filter screen in the middle water cavity 73, be equipped with the third filter screen in the lower water cavity 74, the surface that meets with the mass flow cavity on the base 71 is embedded to have the faller 78 of water needle 79, and water needle 79 extends to the outside of base 71.

In this embodiment, the middle water chamber 73 is a rectangular chamber, the bottom of the middle water chamber is a V-shaped structure, a third filter net with a volume smaller than or equal to the volume of the middle water chamber 73 is movably arranged in the middle water chamber, the mesh diameter of the third filter net is gradually reduced from the upper part of the middle water chamber 73 downwards, the mesh diameter of the first filter net 75 is larger than or equal to the maximum mesh diameter of the third filter net, and the mesh diameter of the second filter net is smaller than or equal to the minimum mesh diameter of the third filter net.

Specifically, first suction roller 33, second suction roller 42, third suction roller 53 and fourth suction roller 63 all include the suction tube 81 that the stainless steel seamless steel pipe made and form and install the mould conjunction 85 outside suction tube 81, and mould conjunction 85 is for adopting the steel sheet net that punches a hole as the three-layer net structure that supports, be equipped with a plurality of suction holes on the suction tube 81, be equipped with a plurality of steel round supporting plates 82 that are used for supporting mould conjunction 85 in the mould conjunction 85, be equipped with a plurality of holes of falling with the suction hole intercommunication on the round supporting plate 82, wherein carry out the finish machining to the inside and outside pipe wall of suction tube 81.

In this embodiment, the suction roller is divided into two parts of an inner roller body and an outer revolving body, the inner roller body is a suction pipe 81, the outer revolving body cancels the traditional honeycomb net, only adopts a structure of a steel plate net and a metal net sleeve, namely a circular net combining piece 85, the outer revolving body is supported by a plurality of steel circular supporting plates 82, a common large bearing 83 is adopted on the driving side to replace a linear bearing in the prior art, a single self-aligning bearing 84 is adopted on the driven side to replace a double bearing, the running speed of the traditional roller is more about 40m/min, the conditions of insufficient stability, high failure rate and the like can occur during further speed due to the damage of the linear bearing and the easy damage of the honeycomb net and the steel plate net, the main reason is that the bearing on the two sides of the traditional roller is mainly subjected to radial load, generally speaking, namely, the outer revolving dead weight, the spunlace pressure and the revolving centrifugal force are accompanied by slight axial force formed by over-positioning due to, the linear bearing can be completely replaced by the common large bearing 83, and the rated load of the large bearing 83, namely the standard bearing, is about four times of the actual load, so that the linear bearing is more excellent than the standard bearing.

In this embodiment, the pre-wetting roller 2 and the first spunlace head 31 are supplied with water by a common multi-stage pump a1, a common first proportional valve a2 is installed between the first spunlace head 31 and the multi-stage pump a1, a first proportional valve a2 is installed between the pre-wetting roller 2 and the multi-stage pump a1, that is, the first spunlace head 31 and the pre-wetting roller 2 are connected in parallel, and each water path is controlled by the first proportional valve a2 for individual flow and pressure control, so that electric energy is saved, and the multi-stage pump a1 is effectively utilized.

In this embodiment, the second hydrator heads 51 are all supplied with water by a first plunger pump A3, a plurality of second proportional valves a4 are provided between the first plunger pump A3 and the second hydrator heads 51, and a first accumulator a5 is provided between the first plunger pump A3 and the second proportional valves a 4. Each second water stabs head 51 is connected in parallel through a water pipe, and each water pipe is independently and independently controlled in flow and pressure through a second proportional valve A4, so that electric energy is saved, the first plunger pump A3 is effectively utilized, pressure and compensation pressure are absorbed through a first energy accumulator A5, and water pressure balance of a main water path is guaranteed.

In this embodiment, the third stabs 61 are supplied with water by a second plunger pump a6, a plurality of third proportional valves a7 are provided between the second plunger pump a6 and the third stabs 61, and a second accumulator A8 is provided between the second plunger pump a6 and the third proportional valve a 7. Each third water stabs head 61 is connected in parallel through a water pipe, and each water pipe is independently and independently controlled in flow and pressure through a third proportional valve A7, so that electric energy is saved, the second plunger pump A6 is effectively utilized, pressure and compensation pressure are absorbed through a second energy accumulator A8, and water pressure balance of a total water path is guaranteed.

The part of the utility model which is not described in detail is the prior art, so the utility model does not detail the part.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the web 1, the prewetting roller 2, the pre-needling device 3, the gap bridge device 4, the reverse-side spunlace device 5, the front-side spunlace device 6, the first spunlace head 31, the first conveying net 32, the first suction roller 33, the first box 34, the second conveying net 41, the second suction roller 42, the second spunlace head 51, the third conveying net 52, the third suction roller 53, the second box 54, the third spunlace head 61, the fourth conveying net 62, the fourth suction roller 63, the third box 64, the base 71, the torrent chamber 711, the upper water chamber 72, the middle water chamber 73, the lower water chamber 74, the first filter screen 75, the second filter screen 76, the third filter screen 77, the water needle plate 78, the water needle 79, the suction pipe 81, the circular support plate 82, the large bearing 83, the aligning bearing 84, the circular net bonding 85, the multistage pump a1, the first proportional valve a2, the first plunger pump A3, the second proportional valve a4, the energy accumulator a5, and the energy accumulator a5 are more used herein, Second plunger pump a6, third proportional valve a7, second accumulator A8, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An efficient energy-saving spunlace machine for a spunlace entanglement process comprises a fiber web (1) and is characterized by further comprising a pre-wetting roller (2), a pre-needling device (3), a gap bridge device (4), a reverse spunlace device (5) and a front spunlace device (6) which are sequentially arranged; the pre-needling device (3) comprises a plurality of first water-needling heads (31) for water-needling the front surface of the fiber web (1) and a dewatering box assembly arranged below the fiber web (1), wherein the dewatering box assembly comprises a first conveying net (32) for conveying the fiber web (1), a plurality of first suction rollers (33) matched with the first conveying net (32) and a plurality of first box bodies (34) arranged below the first conveying net (32); the bridging device (4) comprises a second conveying net (41) for conveying the fiber web (1) and a plurality of second suction roller cylinders (42) matched with the second conveying net (41); the reverse water-jet device (5) comprises a plurality of second water-jet heads (51) for reverse water-jet of the fiber web (1), a third conveying net (52) for conveying the fiber web (1), a plurality of third suction roller cylinders (53) matched with the third conveying net (52) and a plurality of second box bodies (54) arranged below the third conveying net (52); the front-side water punching device (6) comprises a plurality of third water punching heads (61) used for water punching the front side of the fiber web (1), a fourth conveying net (62) used for conveying the fiber web (1), a plurality of fourth suction roller cylinders (63) matched with the fourth conveying net (62) and a plurality of third box bodies (64) arranged below the fourth conveying net (62).

2. An efficient energy-saving spunlace machine for a spunlace process according to claim 1, wherein each of the first spunlace head (31), the second spunlace head (51) and the third spunlace head (61) comprises a base (71) and a torrent cavity (711) arranged above the base (71), an upper water cavity (72), a middle water cavity (73) and a lower water cavity (74) are sequentially communicated from top to bottom in the torrent cavity (711), a first filter screen (75) is arranged in the upper water cavity (72), a second filter screen (76) is arranged in the middle water cavity (73), a third filter screen (77) is arranged in the lower water cavity (74), a water needle plate (78) communicated with the lower water cavity (74) is arranged on the base (71), and a water needle head (79) is arranged on the water needle plate (78).

3. The high-efficiency energy-saving spunlace machine for the spunlace process according to claim 1, wherein each of the first suction roller (33), the second suction roller (42), the third suction roller (53) and the fourth suction roller (63) comprises a suction pipe (81) and a cylinder mould connector (85) arranged outside the suction pipe (81), a plurality of suction holes are formed in the suction pipe (81), a plurality of cylinder support plates (82) used for supporting the cylinder mould connector (85) are arranged in the cylinder mould connector (85), and a plurality of backflow holes communicated with the suction holes are formed in the cylinder support plates (82).

4. An energy efficient hydroentangling machine for use in a hydroentangling process according to claim 3, characterized in that the cylinder mould coupling (85) is a three-layer net structure using punched steel sheet net as support.

5. An energy efficient hydroentangling machine for use in a hydroentangling process according to claim 3, characterized in that the suction tube (81) is made of stainless steel seamless steel tube.

6. An energy efficient hydroentangling machine for use in a hydroentangling process according to claim 1, characterized in that the pre-wetting drum (2) and the first hydroentangling head (31) are both supplied with water by a multistage pump (a1), a first proportional valve (a2) being provided between the first hydroentangling head (31) and the multistage pump (a1), and a first proportional valve (a2) being provided between the pre-wetting drum (2) and the multistage pump (a 1).

7. A high efficiency and energy saving hydroentangling machine for a hydroentangling process as set forth in claim 1, characterized in that said second hydroentangling head (51) is supplied with water by a first plunger pump (A3), a plurality of second proportional valves (a4) being provided between said first plunger pump (A3) and said second hydroentangling head (51), and a first accumulator (a5) being provided between said first plunger pump (A3) and said second proportional valve (a 4).

8. A high efficiency and energy saving hydroentangling machine for a hydroentangling process as set forth in claim 1, characterized in that the third hydroentangling heads (61) are each supplied with water by a second plunger pump (a6), a plurality of third proportional valves (a7) being provided between the second plunger pump (a6) and the third hydroentangling heads (61), and a second accumulator (A8) being provided between the second plunger pump (a6) and the third proportional valves (a 7).

9. An energy efficient hydroentangling machine for use in a hydroentangling process according to claim 1, characterized in that the pre-wet drum (2) comprises a cylinder and a plurality of orifices uniformly arranged on the cylinder.

10. An energy efficient hydroentangling machine for use in a hydroentangling process as set forth in claim 2, characterized in that the mesh diameter of the first screen is equal to or greater than the maximum mesh diameter of the third screen (77), and the mesh diameter of the second screen (76) is equal to or less than the minimum mesh diameter of the third screen (77).