CN114432040B

CN114432040B - Absorber manufacturing device

Info

Publication number: CN114432040B
Application number: CN202210095279.0A
Authority: CN
Inventors: 徐毅
Original assignee: Zuiko (shanghai) Corp
Current assignee: Zuiko (shanghai) Corp
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2023-03-28
Anticipated expiration: 2042-01-26
Also published as: CN114432040A

Abstract

An embodiment of the application discloses an absorber forming device, which comprises an adsorption guide unit, a guide unit and a guide unit, wherein at least part of the circumferential surface of the adsorption guide unit is a cylindrical guide surface; the forming units are freely sleeved on the periphery of the adsorption guide unit in a rotating manner around the axis of the forming units; the rotary driver is in transmission connection with the adsorption guide unit; and a fiber conveying unit having an input port and an output port which are remote from and in communication with each other; a flow guide is arranged in the fibre transport unit near the output opening. The flow guide piece is provided with a front end facing the airflow and a rear end deviating from the airflow, and the part of the output port corresponding to the periphery of the forming unit is a first fiber accumulating area. This application sets up water conservancy diversion spare in through the fibre conveying unit for the inside negative pressure of shaping unit can improve the paper pulp fibre at absorber both ends and polymer water-absorbent resin's plumpness, improves the shaping effect of absorber when transverse direction arranges.

Description

Absorber manufacturing device

Technical Field

The application relates to the technical field of manufacturing equipment of disposable sanitary products, in particular to the fields of mini-towels, protection pads and the like, and specifically relates to an absorber manufacturing device.

Background

In the conventional absorbent sanitary articles such as sanitary napkins (also called mini-napkins) for women, pantiliners, etc., the absorbent part is mainly composed of a mixture of fluff pulp fibers and a polymeric water-absorbent resin. Therefore, it is necessary to provide an absorbent body manufacturing apparatus in a sanitary napkin/pad manufacturing facility, in which a pulp raw material sheet is usually pulverized by a pulverizer to form fluff pulp fibers, which may be called pulp fibers, and then the pulp fibers are fed into a fiber conveying unit connected to a negative pressure, and the pulp fibers are mixed with a high molecular water-absorbent resin in the fiber conveying unit and finally adsorbed on a molding unit for molding.

In the existing absorber manufacturing device, in order to correspond to small-sized absorbent sanitary products such as mini-towels, panty liners and the like, a forming cavity in a forming unit can be arranged along a transverse direction vertical to a circumferential direction, but because the negative pressure of the middle area of the forming die is obviously larger than that of the two side edge areas, the forming unit of the mode often causes the problem that the thickness of the formed absorber is uneven, namely, the thickness of the absorber in the two side edge areas is obviously smaller than that of the middle area of the absorber, the forming effect of the forming unit is greatly reduced, and the product yield is obviously reduced.

In addition, the crushing apparatus for manufacturing small-sized absorbent sanitary articles, if adopting the arrangement specification of the conventional blades, is very likely to cause the phenomenon that pulp fibers are not completely crushed, i.e., white spots are formed in the formed absorbent body, because the forming quality of the absorbent body is directly affected by the white spots due to the small size of the product itself.

In view of the above, it is necessary to develop a transversely arranged absorbent body manufacturing apparatus for solving the above problems.

Disclosure of Invention

The embodiment of the application provides an absorber forming device to solve long-pending fine device and can't guarantee the even technical problem of plumpness of absorber at fashioned in-process because of the negative pressure is not enough.

In order to solve the above technical problem, the embodiment of the present application discloses the following technical solutions:

the application provides an absorber forming device who transversely arranges for form the absorber mixture and the shaping is predetermined absorber after smashing into the paper pulp fibre with the paper pulp sheet and carry to the downstream side, including rubbing crusher structure, fibre conveying unit and long-pending fine mechanism wherein, fibre conveying unit set up in rubbing crusher structure with between the long-pending fine mechanism, long-pending fine mechanism includes: an adsorption guide unit having a guide surface of a circular ring structure; a rotation driver which is connected to the guide surface of the adsorption guide unit in a transmission manner; a plurality of molding units uniformly provided on an outer periphery of the guide surface and rotated along with the guide surface; the fiber conveying unit is provided with an input port and an output port which are far away from each other and communicated with each other; the fiber conveying unit further includes: the flow guide piece is provided with a front end which is opposite to the airflow and a rear end which is opposite to the airflow, the front end and the rear end of the flow guide piece are not communicated with each other, and the flow guide piece is arranged in the fiber conveying unit and is adjustably close to or far away from the output port along the conveying direction; the part of the output port corresponding to the periphery of the forming unit is a first fiber accumulating area; the periphery of the forming unit is provided with a plurality of grooves matched with the shape of the absorber, the grooves are distributed along the circumferential direction and comprise long axes and short axes which are perpendicular to each other, the long axes of the grooves are parallel to the axes of the guide surfaces, the short axes of the grooves are perpendicular to the axes of the guide surfaces, and the bottoms of the grooves are provided with screen structures to form forming areas of the absorber; each forming area periodically rotates through the first fiber accumulating area along with the forming unit under the driving of the rotary driver; defining: the area near the circumferential midline of the screen structure is a central area, and the end area of the screen structure far away from the circumferential midline is an edge area; the opening rate of the edge area is smaller than that of the central area; the orthographic projection of the rear end of the flow guide piece in the forming area corresponds to the central area of the screen mesh structure in the forming area.

Further, at least one section of the cross-sectional area of the flow guide piece is gradually increased in the flowing direction of the airflow; the length of the orthographic projection of the rear end of the flow guide piece on the molding area is 200mm-300mm.

Further, the cross section of the flow guide piece is of an arc-shaped structure; the flow guide piece further comprises two adjusting pieces, and each adjusting piece is connected to one end, close to the forming unit, of the flow guide piece.

Furthermore, the adsorption guide unit is also provided with an air draft channel and at least one main air guide channel which are arranged inside the guide surface; the main guide air ducts are radially arranged in the circumferential direction of the forming unit, are uniformly arranged between the guide surface and the air draft channel, communicate the guide surface with the air draft channel and are used for forming a guide surface main opening and an air draft main opening on the guide surface and the air draft channel; the part of the output port corresponding to the periphery of the molding unit forms the first fiber accumulating area which at least fully covers the main opening of the guide surface.

Further, the aperture ratio of the central area is 40% -60%; the opening rate of the edge area is 30-40%.

Further, the adsorption guide unit further includes: the secondary guide air channel is arranged inside the guide surface, is communicated to the forming unit and is arranged on the downstream side of the main guide air channel; the secondary guide air channel is arranged between the guide surface and the air draft channel, communicates the guide surface with the air draft channel and is used for forming a guide surface auxiliary opening and an air draft auxiliary opening on the guide surface and the air draft channel; the part of the output port corresponding to the periphery of the molding unit is used for forming a second fiber accumulating area which at least fully covers the guide surface auxiliary opening; under the drive of the rotary driver, each molding area periodically rotates along with the guide surface to pass through the first fiber accumulating area and the second fiber accumulating area in turn.

Further, the effective cross-sectional area of the air draft main opening is larger than the sum of the effective cross-sectional areas of the forming regions corresponding to the absorbers in the first fiber accumulating region; the effective cross-sectional area of the air draft auxiliary opening is smaller than that of the air draft main opening.

Further, along the rotation direction of the guide surface, the adsorption guide unit further comprises a conveying area which is arranged inside the guide surface and is positioned on the downstream side of the secondary guide air duct.

Further, the suction guide unit further includes a blowing zone provided inside the guide surface and located on a downstream side of the transfer zone.

Further, the absorber forming apparatus further includes: and the clamping and pressing unit is arranged on the periphery of the conveying area.

Further, the adsorption guide unit further includes: the cleaning area is arranged inside the guide surface and located on the downstream side of the blowing area, a blowing mechanism is arranged inside the cleaning area, and a blowing mechanism is arranged outside the cleaning area.

Further, the absorber forming apparatus further includes: the negative pressure receiving mechanism is arranged at the downstream side of the conveying area and is provided with a receiving surface, and the receiving surface starts from the boundary of the conveying area and the blowing area and at least extends to the boundary of the blowing area and the cleaning area along the rotation direction of the forming unit; and a demolding mechanism is arranged in the air blowing area, and the demolding mechanism demolds the absorber in the forming area to the bearing surface of the negative pressure bearing mechanism.

Further, the molding unit includes: the forming die is provided with a forming through groove which is communicated to the main guide air duct; the forming plate is provided with a plurality of grooves, and the forming plate is arranged in the forming through groove and is arranged on one centrifugal side of the screen structure.

Further, the molding unit further includes: and the reinforcing plate is arranged at the bottom of the screen structure and is connected with the screen structure to be fixed in the forming through groove and used for reinforcing and fixing the screen structure.

Further, the shredding mechanism is connected to an input port of the fiber conveying unit; the crushing mechanism includes: a housing having an inlet port and an outlet port that are separated from each other and communicate with each other, the outlet port being communicated to the molding unit through the fiber conveying unit; and the knife roller is rotatably connected in the shell along the horizontal direction.

Further, the absorber forming device further comprises a polymer conveying unit, wherein an outlet of the polymer conveying unit is communicated to the inside of the fiber conveying unit and used for feeding polymer materials into the fiber conveying unit to be mixed with the pulp fibers to form the absorber mixture.

Further, the knife roll includes: the rotating shaft is arranged along the horizontal direction and can be rotationally connected to the shell through bearings at two ends of the rotating shaft, and a first key groove is formed in the outer circumference of the rotating shaft; the blades are of disc-shaped structures, the blades are arranged along the axial direction of the rotating shaft and are installed on the rotating shaft, a plurality of uniform and inclined tooth sheets are arranged on the outer circumference of the blades, and the tooth sheets are provided with cutting edges; the inner circumference of the blade is provided with a second key groove matched with the first key groove, and a shaft key is arranged in the first key groove and the second key groove; and the spacer is arranged between two adjacent blades.

Further, the spacer has a thickness less than a thickness of the blade; the thickness of the spacer is 1-2.5mm.

One of the above technical solutions has the following advantages or beneficial effects: the utility model provides an absorber forming device carries out reasonable setting through the clearance to rubbing crusher constructs's blade, reduces the clearance between the blade to set up more blades on the rotation axis, not only reduce the absorber forming process of small dimension and appear the white point phenomenon, show moreover and promoted rubbing crusher constructs's crushing effect.

One of the above technical solutions has the following advantages or beneficial effects: the short axis of the groove in the forming unit is perpendicular to the axis of the guide surface, namely the long axis of the groove is arranged along the transverse direction perpendicular to the circumferential direction, namely the CD direction, so that the formed absorber is arranged in the transverse direction, the forming quantity and the forming efficiency of the absorber in the absorber forming device are obviously improved, and the turning process of a product is reduced in the rear end process, so that the manufacturing cost is greatly saved, and the production efficiency is improved.

One of the above technical solutions has the following advantages or beneficial effects: the effective cross-sectional area of the air draft main opening is larger than the sum of the effective cross-sectional areas of the forming areas corresponding to the absorbers in the first fiber accumulating area range, so that the negative pressure of the main air guide duct can effectively ensure the plumpness of the pulp fibers and the high polymer water-absorbent resin at the two ends of the absorbers, and the forming effect of the absorbers in the transverse direction is improved.

One of the above technical solutions has the following advantages or beneficial effects: the opening rate of the edge area of the screen structure is smaller than that of the central area; the orthographic projection of the rear end of the flow guide piece in the forming area corresponds to the central area of the screen structure in the forming area, the plumpness of the two ends of the absorber is increased, and meanwhile, the forming effect of the absorber in the transverse direction CD arrangement is improved, so that the problems of cotton core loss and unsaturation of the two ends of the absorber are further solved.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an absorbent body manufacturing apparatus according to an embodiment of the present application.

Fig. 2 is a sectional view of a shredder mechanism provided in an embodiment of the present application with the housing removed.

Fig. 3 is a schematic cross-sectional view of fig. 2 in the S-S direction.

Fig. 4 is a schematic side view of a blade of a knife roll provided by an embodiment of the present application.

Fig. 5 is a partial schematic view of the circumferential expansion of the ventilation channel according to the embodiment of the present application.

Fig. 6 is an expanded view of the molding units arranged in the circumferential direction in the prior art.

Fig. 7 is a schematic circumferential expansion view of a forming unit according to an embodiment of the present application.

Fig. 8 is a schematic cross-sectional view of the molding unit of fig. 7 in a transverse direction.

Fig. 9 is a schematic cross-sectional view of the molding unit of fig. 7 in a circumferential direction.

Fig. 10 is a schematic cross-sectional view of the baffle provided in fig. 1 in the direction K-K.

Fig. 11 is a cross-sectional view of another baffle member provided in fig. 1 in the direction K-K.

The components of the drawings are identified as follows:

100. an absorber forming device; 1. A crushing mechanism;

2. a fiber conveying unit; 3. A fiber accumulating mechanism;

4. a polymer transport unit; 5. A nip unit;

6. a conveying unit; 11. A knife roll;

12. a housing; 111. A rotating shaft;

112. a shaft key; 113. A blade;

114. a spacer; k1, a first key slot;

k2, a second key slot; u1, a tooth sheet;

u2, a blade; 13. An introducing port;

14. a lead-out port; p0, paper pulp sheet;

p1, pulp fibers; q, an absorber;

211. an input port; 221. An output port;

30. an adsorption guide unit; 31. A molding unit;

301. a guide surface; 302. A partition structure;

303. an air draft channel; 30a, a guide surface main opening;

30b, guide surface auxiliary opening; h1, main opening of air draft;

h2, opening an air draft auxiliary opening; h3, opening a non-air draft opening;

x1, a first fiber accumulation area; x2, a second fiber accumulation area;

3111. forming a through groove; a. An air outlet zone;

b1, a main air flow guide duct; b2, a secondary flow guide air duct;

C. a transfer zone; d. A blowing zone;

E. a cleaning area; 3021. A radial spacer;

311. forming a mould; 312. Forming a plate;

313. a screen mesh structure; 313a, central region;

313b, edge area; 3121. A groove;

222. a flow guide member; 314. A reinforcing plate;

2221. a baffle; 2222. A base plate.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example 1

As shown in fig. 1 to 4, the present embodiment provides an absorber forming apparatus 100, which is described by taking a product of a pad as an example, and the absorber forming apparatus 100 is provided in a disposable sanitary product manufacturing facility in order to form an absorber Q thereof. The absorber forming apparatus 100 is configured to crush a pulp sheet P0 into pulp fibers P1, form an absorber mixture, and convey a predetermined absorber Q to the downstream side, and includes a crushing mechanism 1, a fiber conveying unit 2, a polymer conveying unit 4, a fiber stacking mechanism 3, a nip unit 5, and a conveying unit 6. The fiber conveying unit 2 is disposed between the pulverizing mechanism 1 and the fiber accumulating mechanism 3, and the outlet of the polymer conveying unit 4 is disposed inside the fiber conveying unit 2, and is used for supplying a polymer material into the fiber conveying unit 2 to be mixed with the pulp fibers P1 to form an absorbent mixture (which may be simply referred to as a mixture).

The crushing mechanism 1 comprises a knife roller 11 and a shell 12, wherein the knife roller 11 is rotatably connected in the shell 12 along the horizontal direction.

Specifically, the knife roll 11 is a crushing knife roll, which includes a rotating shaft 111, a shaft key 112, blades 113, and a spacer 114.

The rotating shaft 111 is disposed in a horizontal direction and rotatably coupled to the housing 12 through bearings at both ends thereof, and a first key groove K1 is provided on an outer circumference of the rotating shaft 111. The rotating shaft 111 is connected to a driving device (not shown), which may be a motor.

At present, in a crushing blade used in an absorber manufacturing apparatus, since a gap between blades is relatively large, incompletely crushed fibers occur when crushing the pulp sheet P0, and such incompletely crushed pulp fibers converge to form "white spots" after being formed into an absorber. Particularly, in the case of small-sized absorbent articles such as sanitary napkins and panty liners, since the products themselves are small and small, if such "white spots" appear in the absorbent body, the absorbent performance is not only impaired, but also the product quality is visually recognized with the naked eye, which is accompanied by a decrease in the quality of the product. Of course, if used in relatively large products for baby/adult diapers, this "white spot" phenomenon is not noticeable and does not affect the quality of the product.

In order to overcome the above problem, in the present embodiment, a plurality of disc-shaped blades 113 are attached to the rotary shaft 111.

Specifically, the plurality of blades 113 are arranged along the axial direction of the rotary shaft 111 and are mounted on the rotary shaft 111. Wherein, a plurality of uniform and inclined tooth sheets U1 are arranged on the outer circumference of the blade 113, and the tooth sheets U1 are provided with cutting edges U2 made of superhard materials. In this embodiment, the inner circumference of the insert 113 is provided with a second key groove K2 matching with the first key groove K1, that is, the first key groove K1 and the second key groove K2 correspond to each other in circumferential position. Wherein, a shaft key 112 is installed in the first key groove K1 and the second key groove K2 for fixing the blade 113 to the circumferential outer surface of the rotating shaft 111. Further, the blades 113 are sequentially fixed to the circumferential outer surface of the rotary shaft 111 in the axial direction, and the blades U1 are arranged in a staggered manner at equal angles in the circumferential direction to ensure that the pulp sheet P0 can be pulverized at every position in the axial and circumferential spaces, as shown in fig. 3 to 4.

Further, a spacer 114 is provided between adjacent two blades 113 to space the adjacent blades 113. Wherein, the gap between two adjacent blades 113 is the thickness of the spacer 114. In this embodiment, the thickness of the spacer 114 is less than the thickness of the blade 113. Here, the thickness of the spacer 114 is set to be N, the thickness of the blade 113 is set to be M, N > 0, M > 0, and N < M, as shown in FIG. 2. Wherein, the thickness N of the spacing piece 114 is 1-2.5mm, that is, the gap between two adjacent blades 113 is 1-2.5mm, so that the gap between two blades 113 can be adjusted to 0.2-0.8 times of the distance between the blades 113 of the original crushing mechanism 1. Therefore, more blades 113 can be provided on the rotary shaft 111, which is advantageous for increasing the contact area of the pulp sheet P0 with the blades 113 at the position in the axial direction, thereby enabling the pulp sheet P0 to be sufficiently crushed, reducing the occurrence of "white spots" in the absorbent body Q during molding, and significantly improving the crushing effect of the crushing mechanism 1.

Compared with the prior art, the number of the blades 113 of the shredding mechanism 1 of the present embodiment is increased by 30% to 45% compared with the number of the blades 113 of the prior shredding mechanism, so that the shredding mechanism 1 provided in the present embodiment can avoid the incomplete shredding phenomenon of the pulp sheet P0 by increasing the contact area between the blades 113 and the pulp sheet P0 in the axial direction in a unit time, and is particularly suitable for small-sized disposable hygienic products, such as mini-napkins, panty liners, and the like.

Therefore, the present embodiment reduces the gap between two adjacent blades 113 to increase the number of blades 113, so that the shredding mechanism 1 has a good cutting effect, and simultaneously fully improves the shredding capability thereof, and prevents the phenomenon that the pulp sheet P0 is not shredded well due to the excessively large gap between two adjacent blades 113, and solves the problem of white spots occurring in the absorber Q, thereby significantly improving the absorption performance of the absorber Q and the quality of the product.

The housing 12 is a cylindrical structure having an introduction port 13 and an exit port 14 which are separated from and communicate with each other, and the exit port 14 communicates with the forming unit 31 through the fiber conveying unit 2. The pulp sheet P0 is conveyed into the crushing mechanism 1 through the introduction port 13, and the pulp sheet P0 is sufficiently crushed by the blades 113 in the crushing mechanism 1 to form pulp fibers P1, which can ensure that the problem of "white spots" does not occur in the subsequently formed absorbent body Q.

Further, the fiber stacking mechanism 3 located downstream of the crushing mechanism 1 has a small hole in its interior in the suction area to the main chamber of the fiber feeding unit 2, and the negative pressure is insufficient, and if the mold of the absorber Q is set in the lateral direction perpendicular to the circumferential direction, that is, the long axis direction of the absorber Q is set perpendicular to the circumferential direction, and the short axis direction thereof is set along the circumferential direction, the degree of fullness at both ends in the width direction of the absorber Q cannot be ensured.

To solve the above problem, please continue to refer to fig. 1, in this embodiment, the fiber conveying unit 2 is disposed at the downstream side of the pulverizing mechanism 1, and has a hollow structure with an input port 211 and an output port 221, which are far away from and communicate with each other, and the pulverizing mechanism 1 is connected to the input port 211 of the fiber conveying unit 2. In this embodiment, the main body of the polymer conveying unit 4 is disposed outside the fiber conveying unit 2, and the outlet end of the polymer conveying unit 4 is disposed inside the fiber conveying unit 2 and communicated to the fiber conveying unit 2 to convey a certain proportion of polymer material (also called polymer water-absorbent resin) to the fiber conveying unit 2, so that the polymer material and the pulverized pulp fibers P1 are mixed in the fiber conveying unit 2 according to a certain proportion. The fiber stacking mechanism 3 includes an adsorption guide unit 30, a plurality of molding units 31, and a rotation driver (not shown).

The adsorption guide unit 30 includes a guide surface 301 having a circular structure, an air draft passage 303 disposed inside the guide surface 301, at least one main guide duct B1, and at least one sub guide duct B2. The guide surface 301 is also referred to as a fiber drum, and the circumferential surface of the fiber drum has a drum structure with a uniform opening.

A rotation driver (not shown) is drivingly connected to the guide surface 301 of the suction guide unit 30. The rotation driver is a driving device for driving the guide surface 301 of the suction guide unit 30 to rotate.

The molding units 31 are uniformly arranged on the outer periphery of the guide surface 301, and as the guide surface 301 rotates, the molding units 31 surround a circular ring structure.

Specifically, as shown in fig. 1 and 5, the air draft channel 303 of this embodiment is disposed inside the guide surface 301, the air draft channel 303 is disposed inside the air duct having a hollow circular ring structure, and the circumferential surface of the air duct is provided with an air draft main opening H1, an air draft auxiliary opening H2, and a non-air draft opening H3. The main guide air duct B1 corresponds to the air draft main opening H1, and the secondary guide air duct B2 corresponds to the air draft auxiliary opening H2. Wherein, the effective cross-sectional area of the air draft auxiliary opening H2 is smaller than that of the air draft main opening H1.

Further, the main air flow paths B1 are radially arranged on the circumferential inner side of the molding unit 3, and each main air flow path B1 is arranged between the guide surface 301 and the air draft channel 303 and communicates the guide surface 301 with the air draft channel 303 to form the guide surface main opening 30a and the air draft main opening H1 on the guide surface 301 and the air draft channel 303. The portion of the output port 221 of the fiber feeding unit 2 corresponding to the outer periphery of the molding unit 31 forms a first fiber stacking area X1 that covers at least the guide surface main opening 30 a. The outer circumference of the forming unit 31 is provided with a plurality of grooves 3121 adapted to the outer shape of the absorbent body, the grooves 3121 are arranged in the circumferential direction, the grooves 3121 include long axes and short axes perpendicular to each other, referring to fig. 7, the long axes of the grooves 3121 are parallel to the axis of the guide surface 301, and the short axes of the grooves 3121 are perpendicular to the axis of the guide surface 301. The axis of the guide surface 301 is an axis extending perpendicularly to the circumferential direction of the guide surface 301. The bottom of the groove 3121 is provided with a mesh structure 313 to form a molding region of the absorber Q. Each profiled region is periodically rotated past the first fibre deposition region X1 with the guide surface 301, driven by the rotary drive.

The secondary guide duct B2 is provided inside the guide surface 301, communicates with the forming unit 31, and is located on the downstream side of the primary guide duct B1. Each secondary guide air duct B2 is arranged between the guide surface 301 and the air draft channel 303, and communicates the guide surface 301 with the air draft channel 303 to form the guide surface auxiliary opening 30B and the air draft auxiliary opening H2 on the guide surface 301 and the air draft channel 303. The portion of the output port 221 of the fiber feeding unit 2 corresponding to the outer periphery of the molding unit 31 forms a second fiber accumulation region X2 that covers at least the guide-surface auxiliary opening 30 b. Each molding region periodically rotates sequentially by the first fiber accumulation region X1 and the second fiber accumulation region X2 along with the guide surface 301 by the driving of the rotary driver.

The effective cross-sectional area of the air draft main opening H1 is larger than the sum of the effective cross-sectional areas of the forming areas corresponding to the absorbers Q in the range of the first fiber accumulating area X1, so that the forming effect of the absorbers Q is ensured.

Specifically, convulsions form air outlet area A, and air outlet area A's external connection negative pressure mechanism, this negative pressure mechanism can be the air exhauster. The circumference outside convulsions passageway 303 is provided with subregion structure 302, and this subregion structure 302 is divided into main water conservancy diversion wind channel B1, inferior water conservancy diversion wind channel B2, conveying district C, blowing district D and clearance district E with subregion structure 302 through a plurality of radial baffle 3021. Wherein, radial baffle 3021 can set up to structures such as straight plate, L template, arc, can do corresponding adjustment according to the in-service use needs.

The air outlet area a is disposed at the center of the partition structure 302 and is connected to the primary air guiding channel B1 and the secondary air guiding channel B2. The main guide air duct B1, the secondary guide air duct B2, the conveying area C, the blowing area D and the cleaning area E are arranged on the periphery of the air outlet area A, and the secondary guide air duct B2, the conveying area C, the blowing area D and the cleaning area E are sequentially arranged on the downstream side of the main guide air duct B1.

In this embodiment, the negative pressure air (air draft effect) generated by the external negative pressure mechanism is transmitted to the main air guide duct B1 and the sub air guide duct B2 through the air draft channel 303, so that the pulverized pulp fibers P1 can be mixed with the polymer material conveyed from the polymer conveying unit 4 in the fiber conveying unit 2 to obtain a corresponding absorbent mixture, and the mixture is adsorbed in the forming area of the forming unit 31 of the fiber accumulating mechanism 3 to form the absorbent Q in a specific shape. As shown in fig. 1, the angle corresponding to the main air guide channel B1 is a, the angle corresponding to the secondary air guide channel B2 is B, and a > B > 0 is satisfied, and thus, the angle a corresponding to the main air guide channel B1 is a negative pressure main adsorption region, so that the absorbers Q are all gathered in the angle range in the forming process, and the angle B corresponding to the secondary air guide channel B2 is a negative pressure secondary adsorption region, that is, a secondary adsorption region of the absorbers Q in the forming process. Therefore, the main guide duct B1 is a high-pressure region, and the sub guide duct B2 is a medium-high pressure region. The pressure of the main guide air duct B1 and the pressure of the secondary guide air duct B2 can be respectively adjusted. Specifically, be provided with in the convulsions passageway 303 can adjust the main opening H1 of convulsions separately and convulsions assist the flashboard or the valve etc. of opening H2, through adjustment flashboard/the size of valve opening effective area, can adjust main water conservancy diversion wind channel B1 and the negative pressure size of inferior water conservancy diversion wind channel B2. In other embodiments, in order to improve the forming effect of the absorber Q, a plurality of guide ducts (i.e., negative pressure regions) having different negative pressures may be provided in the adsorption guide unit 30. The conveying area C corresponds to the non-draft opening H3 of the draft channel 303 for conveying the molded absorber Q. Specifically, the conveyance zone C is a normal air positive pressure zone for conveying the absorbent body Q whose upstream side is suction-molded in the groove 3121.

Further, the absorber forming apparatus 100 further includes a compressing unit 5, the compressing unit 5 is disposed at the periphery of the conveying area C, and is configured to compress and convey the absorber Q located in the forming through groove 3111 to limit the absorber Q to separate from the groove 3121 in the rotating process, so that the absorber Q is stably conveyed on the guide surface 301 of the absorption guide unit 30, and meanwhile, the absorber Q is prevented from breaking, so as to obtain the complete absorber Q. In this embodiment, the clamping unit 5 is a belt clamping device. Of course, in other embodiments, the absorbent body Q after molding may be adsorbed in the transfer zone C by the adsorption unit by negative pressure by a structure in which a weak negative pressure is provided in the range of the transfer zone C, so that the absorbent body Q is stably transported on the guide surface 301 of the adsorption guide unit 30.

Along the rotation direction of the guide surface 301, the suction guide unit 30 further includes an air blowing region D provided inside the guide surface 301 and on the downstream side of the air guide passage B2 for air blowing at the time of releasing the absorbent body Q in the groove 3121 in the forming unit 31.

In this embodiment, the absorber forming apparatus 100 further includes a negative pressure receiving mechanism 6, the negative pressure receiving mechanism 6 is disposed on the downstream side of the conveying area C, and the negative pressure receiving mechanism 6 has a receiving surface extending from a boundary between the conveying area C and the blowing area D to at least a boundary between the blowing area D and the cleaning area E along the rotation direction of the forming unit 31, and is configured to receive and convey the absorber Q after being demolded. Wherein the blowing area D corresponds to the non-air-draft opening H3 of the air-draft channel 303, a demoulding mechanism is arranged in the blowing area D, and the demoulding mechanism is used for demoulding the absorber Q in the forming area to the bearing surface of the negative pressure bearing mechanism 6. The demoulding mode can be blowing, stripping, vibrating and the like.

The negative pressure receiving mechanism 6 has a vacuum box structure with an adsorption function, and the absorber Q is subjected to air blowing treatment by the air blowing structure in the air blowing region D, is demolded from the inside of the forming through groove 3111 onto the negative pressure receiving mechanism 6, and is conveyed to a downstream device under the adsorption action of the negative pressure receiving mechanism 6.

The clearance district E set up in the inside of guide face 301, and set up in the downstream side of blowing district D, set up between main air duct B1 and blowing district D promptly, this clearance district E corresponds air draft opening H3 of exhaust channel 303, and the inside of clearance district E is equipped with blowing mechanism, and the outside of clearance district E is equipped with suction mechanism. The blowing mechanism of clearance district E is used for blowing clean processing to the shaping unit 31 after the drawing of patterns, then outside suction mechanism is used for retrieving the residue such as paper pulp fibre P1, polymer water-absorbent resin in the clearance process, consequently set up inside and outside blowing mechanism and suction mechanism mutually support in the clearance district, so that the paper pulp fibre P1 on the shaping unit 31, residue such as polymer water-absorbent resin clean up, make shaping unit 31 can get into the shaping of the absorbent Q of next round smoothly, and avoided next round absorbent Q to be contaminated in the process of shaping, influence the quality of product.

Of course, the suction guiding unit 30 of the present embodiment can be divided into different areas according to the characteristics of the appearance and the size of the product actually produced.

The molding unit will be described in more detail below.

Heretofore, the rotation direction of the suction guide unit 30 is hereinafter referred to as "circumferential direction" or "circumferential direction", the diameter direction of the suction guide unit 30 is hereinafter referred to as "radial direction" or "radial direction", and the direction perpendicular to the circumferential direction and the radial direction of the suction guide unit 30 is referred to as "transverse direction CD" or "transverse direction" or "CD direction".

As shown in fig. 6, in the absorber manufacturing apparatus which is often used at present, the longitudinal direction of the mold B 'of the forming die a' corresponds to the absorber longitudinal direction, and defines: the long side of the absorber is the length direction, the short side is the width direction, and the length direction of the absorber is usually arranged along the circumference direction of the adsorption guide unit, namely the longitudinal direction, in sequence, namely the length direction of the absorber after demoulding is consistent with the flow direction. However, the absorber forming quantity is limited in the above way, and the arrangement mode needs to turn the direction adjusting device for 90 degrees to the semi-finished product of the absorbent sanitary article after the product shape is cut by the product cutter in the rear end process of the flow, and then the subsequent processes of compounding with the small packaging film, folding the product and the like are carried out. Therefore, the process has high manufacturing cost and complicated working procedures.

In order to save the cost of rear-end equipment and improve the forming quantity and efficiency of the absorber, for some small sanitary towels, mini-towels and protection pad products, the length direction of the model of the forming die is sequentially and transversely arranged along the circumferential direction vertical to the adsorption guide unit, namely the width direction of the absorber after being demoulded is consistent with the flow direction.

Specifically, as shown in fig. 7 to 9, the molding unit 31 includes a molding plate 312, a molding die 311, and a reinforcing plate 314. The outer periphery of the forming unit 31 is provided with a plurality of grooves 3121 adapted to the outer shape of the absorbent body, each groove 3121 is arranged in the circumferential direction, each groove 3121 includes a long axis and a short axis perpendicular to each other, the long axis of each groove 3121 is parallel to the axis of the guide surface 301, the short axis of each groove 3121 is perpendicular to the axis of the guide surface 301, and the bottom of the groove 3121 is provided with a mesh structure 313 to form a forming region (not shown) of the absorbent body Q.

The forming mold 311 has a forming through groove 3111, and the forming through groove 3111 is communicated to the main air duct B1.

The forming plate 312 has a circular arc plate-shaped structure, and has a plurality of grooves 3121, in which the direction in which the major axis of the groove 3121 extends coincides with the lateral direction CD, and the direction in which the minor axis of the groove 3121 extends coincides with the circumferential direction. The thickness of the forming plate 312 is the thickness of the formed absorber Q, and thus the thickness can be set according to the thickness requirements of the product.

The forming plate 312 is disposed in the forming through groove 3111 and disposed on a centrifugal side of the screen structure 313. The mesh structure 313 provides a gas-permeable environment through which gas can pass, but can adsorb the pulp fibers P1 and the high-molecular water-absorbent resin on the surfaces thereof. In addition, the forming unit 31 further includes a reinforcing plate 314 disposed at the bottom of the screen structure 313, and fixed in the forming through slot 3111 together with the screen structure 313, for reinforcing and fixing the screen structure 313, that is, for fixing the forming plate 312 and the screen structure 313 on the forming die 311, so as to reinforce the installation strength of the screen structure 313.

Further, in the present embodiment, an area near the circumferential centerline of the screen structure 313 is a central area 313a, and an end area of the screen structure 313 far from the circumferential centerline is an edge area 313b, so that the aperture ratio of the edge area 313b is smaller than the aperture ratio of the central area 313 a. Wherein, the aperture ratio of the central region 313a is 40% -60%, preferably 50%; the opening ratio of the edge region 313b is 30% to 40%, preferably 35%. The middle position of the absorber Q corresponds to the central region 313a of the mesh structure 313, and the both end positions of the absorber Q correspond to the edge regions 313b of the mesh structure 313.

In this embodiment, the wind speed through the screen structure 313 is greater than 30m/s, preferably 30-40m/s. The opening ratio of the mesh structure 313, the hole diameter of the holes, and the wind speed passing through the mesh structure 313 may be appropriately adjusted according to actual conditions.

In this embodiment, the forming plate 312, the screen structure 313 and the reinforcing plate 314 are fixed to form a forming assembly, and the forming assembly is disposed in the forming through slot 3111 of the forming mold 311. Further, the forming through groove 3111 of the embodiment is of a stepped structure, so that the forming mold 311 has two grooves disposed up and down, wherein the forming plate 312 is located in the upper groove, and the screen structure 313 and the reinforcing plate 314 are located in the lower groove.

In this embodiment, the negative pressure in the air outlet area a is transmitted to the main air guide passage B1 and the sub air guide passage B2, and then transmitted to the forming unit 31 through the adsorption guide unit 30, so that the mixture of the pulp fibers P1 and the high molecular water absorbent resin is adsorbed onto the screen structure 313.

For small-size absorber Q products, the grooves 3121 in the forming plate 312 are arranged along the transverse direction CD, so that the formed absorber Q is also arranged along the transverse direction CD, the forming quantity and the forming efficiency of the absorber Q on the forming unit 31 are obviously improved, and the turning process of the product is reduced in the rear-end process, thereby greatly saving the manufacturing cost and improving the production efficiency.

Effective cross sectional area through setting up convulsions main shed H1 is greater than the regional sum of effective cross sectional area of the shaping that a plurality of absorbers Q correspond in the first long-pending fine regional X1 within range for the negative pressure of leading air duct B1 can effectively guarantee the plumpness of paper pulp fibre P1 and polymer water absorbent resin in the marginal zone at absorber Q both ends, improves the shaping effect of absorber Q when horizontal direction CD arranges.

Further, in order to make the main air duct B1 in the corresponding angle a range, the mixture of the pulp fibers P1 and the polymeric water-absorbent resin can be completely adsorbed and filled into the groove 3121 of the forming unit 31. The forming unit 31 is provided with more than one groove 3121, that is, one groove 3121 corresponds to one absorber Q, the angular range a has n grooves 3121 adapted to the absorber Q, the effective area of one groove 3121 is S1 (that is, the area of a single absorber Q), wherein the effective cross-sectional area S2 of the air draft main opening H1 is greater than the effective cross-sectional area S1 of the corresponding n forming through grooves 3111 within the angular range a, that is, S2 > n × S1, preferably, S2 ≧ (1.2-2) × S1.

In this embodiment, the rotation direction of the forming unit 31 is clockwise rotation, the flow guide member 222 is arranged on the upstream side of the forming path, and the orthographic projection of the flow guide member 222 on the outer periphery of the forming region partially coincides with the first fiber accumulating region X1. Specifically, the flow guide member 222 is disposed in any region of the first fiber collecting region X1 corresponding to the main air flow duct B1, such as an upstream region, a midstream region, and a downstream region. The present embodiment will be described in detail by taking an example in which the flow guide 222 is disposed on the upstream path of the first fiber collecting region X1 corresponding to the main air duct B1.

As shown in fig. 1, 10, and 11, the absorber forming apparatus provided in this embodiment further includes a flow guide member 222 having a front end facing the air flow and a rear end facing away from the air flow, the flow guide member 222 being adjustably disposed inside the fiber conveying unit 2 along the conveying direction, and further being disposed in the fiber conveying unit 2 and adjustably approaching or departing from the outlet 221 along the conveying direction. The front end and the rear end of the flow guiding member 222 are not communicated with each other, and are used for guiding the airflow flowing in from the input port 211 to one side of the forming unit 31, and the output port 221 is connected to the forming unit 31 to form a first fiber accumulating area X1. The first fiber accumulation region X1 has: an inlet on the upstream side in the rotational direction of the forming unit 31; wherein the flow guide 222 is arranged in the fibre transport unit 2 close to the inlet side of the forming unit 31.

Further, the projection of the rear end of the flow guide member 222 in the circumferential direction of the forming unit 31 is 1/4-1/2 of the arc length of the first fiber accumulation region X1. Preferably, the projection of the rear end of the flow guide 222 in the circumferential direction of the forming unit 31 is 1/3 of the arc length of the first fiber accumulation region X1, as shown in fig. 2.

In this embodiment, since the opening ratio of the edge region 313b is smaller than the opening ratio of the central region 313a, when the mixture of the pulp fibers P1 and the high molecular water-absorbent resin simultaneously acts on the mesh structure 313, the fiber stacking amount of the central region 313a is larger than that of the edge region 313 b.

In order to obtain an absorbent body Q having a uniform thickness, at least a section of the cross-sectional area of the flow guide 222 gradually increases in the flow direction of the air flow, and the length L of the orthographic projection of the rear end of the flow guide 222 on the molding region is 200mm to 300mm. Specifically, in this embodiment, the cross section of the flow guide 222 in the K-K direction is a triangular structure, and referring to fig. 10, the flow guide 222 includes two flow guide plates 2221 and a bottom plate 2222 connected between the two flow guide plates 2221, and an included angle between the two flow guide plates 2221 is an acute angle, and is preferably greater than or equal to 30 ° and less than or equal to 60 °, so that an area of an orthogonal projection of the entire flow guide 222 on the forming unit 31 gradually increases from a front end of the flow guide 222 to a rear end of the flow guide 222. Wherein an orthographic projection of the rear end of the flow guide 222 (i.e. the bottom 2222 of the flow guide 222) in the forming area corresponds to the central area 313a of the screen structure 313 in the forming area. Therefore, in the forming process, a large amount of the mixture of the pulp fibers P1 and the polymeric water-absorbent resin is guided to the edge region 313b of the mesh structure 313 (this is the fiber accumulation process), and a small amount of the mixture is guided to the central region 313a of the mesh structure 313, so that the fullness at the two end positions of the absorbent body Q is increased, the forming effect of the absorbent body Q in the transverse direction CD arrangement is improved, and the problem of the cotton core missing and the unsaturation at the two end positions of the absorbent body Q is solved.

Therefore, in the absorbent body forming apparatus provided in this embodiment, at the initial stage of forming the absorbent body Q, when the forming unit 31 rotates to the first fiber stacking area X1 corresponding to the main air duct B1, more mixture of pulp fibers P1 and high polymer water absorbent resin acts on the edge area 313B of the mesh structure 313, and the flow guide 222 partially shields the central area 313a of the mesh structure 313, so that a small amount of mixture of pulp fibers P1 and high polymer water absorbent resin acts on the central area 313a of the mesh structure 313, and the thickness of the edge area of the absorbent body Q formed at this stage is greater than the thickness of the middle area of the absorbent body Q. In the later stage of the formation of the absorbent body Q, the same amount of the mixture of the pulp fibers P1 and the polymeric water-absorbent resin acts on the central region 313a and the edge region 313b of the mesh structure 313, and since the opening ratio of the edge region 313b is smaller than the opening ratio of the central region 313a, a large amount of the mixture of the pulp fibers P1 and the polymeric water-absorbent resin acts on the central region 313a of the mesh structure 313 in this stage, so that the thickness of the middle region of the absorbent body Q after the formation is the same as the thickness of the edge region of the absorbent body Q. Therefore, the problem that the pulp fibers P1 and the high polymer water-absorbent resin at the two ends of the absorber Q are not distributed sufficiently in the forming process of the absorber Q arranged along the transverse direction CD is further solved from the side, the plumpness at the two ends of the absorber Q is improved, and the appearance effect is greatly improved.

In another embodiment, the screen structure 313 is provided with a plurality of mesh rows which are sequentially arranged at intervals along a direction far away from the circumferential central line, and each mesh row is formed by arranging a plurality of meshes which are arranged at equal intervals along respective row directions; the mesh columns are defined in order from the proximal to the distal from the circumferential midline as:

first mesh row A ₁ A second mesh row A ₂ And a third mesh row A ₃ 8230the nth mesh row A _n ；

First mesh row A ₁ A second mesh row A ₂ The third mesh row A ₃ 8230and the n-th mesh row A _n Respectively has a mesh radius of a ₁ 、a ₂ 、a ₃ "\ 8230 _n (ii) a Then the

Radius of mesh a ₁ 、a ₂ 、a ₃ "\ 8230 _n Form an equal ratio series { a _n And a is _n ＝a ₁ q ^n-1 ；

Wherein, a ₁ Is greater than 0; q is a common ratio of 1<q≤3。

Accordingly, the opening ratio of the screen structure 313 gradually increases in a direction extending from the circumferential center line toward both ends, so that there is no distinct boundary line at the transition region between the central region 313a and the edge region 313 b.

Example 2

The present embodiment provides an absorber forming apparatus, which includes most of the technical solutions of embodiment 1, and is different from that, as shown in fig. 11, the flow guide member 222 further includes two adjusting members 2223, each adjusting member 2223 is connected to one end of the flow guide member 222 close to the forming unit 31, that is, each adjusting member 2223 is connected to the end of the flow guide member 222.

As shown in fig. 11, in order to obtain the absorbent body Q having a uniform thickness, the cross section of the flow guide member 222 has an arc-shaped structure, i.e., the front end and the rear end of the flow guide member 222 are not communicated with each other. Specifically, the flow guide member 222 is substantially an oval structure, the long axis of the flow guide member is perpendicular to the circumferential direction of the forming unit 31, the flow guide member 222 is provided with an arc-shaped flow guide plate 2221 and a bottom plate 2222 connected to the arc-shaped flow guide plate 2221 along the long axis direction of the flow guide member, and an orthogonal projection of the bottom plate 2222 of the flow guide member 222 in the forming area corresponds to the central area 313a of the screen structure 313 in the forming area. Therefore, in the forming process, a large amount of the mixture of the pulp fibers P1 and the polymeric water-absorbent resin is guided to the edge region 313b of the mesh structure 313 (this is the fiber accumulation process), and a small amount of the mixture is guided to the central region 313a of the mesh structure 313, so that the fullness at the two end positions of the absorbent body Q is increased, the forming effect of the absorbent body Q in the transverse direction CD arrangement is improved, and the problem of the cotton core missing and the unsaturation at the two end positions of the absorbent body Q is solved.

Further, the air guiding element 222 further includes two adjusting elements 2223 connected to the joints of the air guiding plate 2221 and the bottom plate 2222, respectively, for adjusting the air flow direction, for example, the adjusting elements 2223 can enlarge the shielding area of the bottom plate 2222 to adapt to the absorber Q with a longer length. Therefore, the diversion member 222 provided by the embodiment can adapt to the absorbers Q with different specifications, thereby meeting the requirements of products with various specifications and expanding the application range of the absorber Q forming device 100.

The absorber forming device provided by the embodiment of the present application is described in detail above, and the principle and the embodiment of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. An absorber forming apparatus (100) for forming an absorber mixture after crushing a pulp sheet (P0) into pulp fibers (P1) and forming a predetermined absorber (Q) and conveying it to a downstream side, the absorber forming apparatus (100) comprising a crushing mechanism (1), a fiber conveying unit (2) and a fiber accumulating mechanism (3), wherein the fiber conveying unit (2) is provided between the crushing mechanism (1) and the fiber accumulating mechanism (3), characterized in that,

the fiber accumulating mechanism (3) comprises:

an adsorption guide unit (30) having a guide surface (301) of a circular ring structure;

a rotation driver that transmits a guide surface (301) connected to the suction guide unit (30); a plurality of molding units (31) which are uniformly arranged on the periphery of the guide surface (301) and rotate along with the guide surface (301);

the fiber conveying unit (2) is provided with an input port (211) and an output port (221) which are far away from each other and are communicated with each other;

the fiber conveying unit (2) further comprises: a flow guide (222) having a front end facing the air flow and a rear end facing away from the air flow, the front end of the flow guide (222) being non-conductive with the rear end thereof, the flow guide (222) being arranged in the fibre transport unit (2) and adjustably approaching or distancing from the outlet opening (221) in the transport direction;

wherein the part of the output port (221) corresponding to the periphery of the forming unit (31) is a first fiber accumulating area (X1); the periphery of the forming unit (31) is provided with a plurality of grooves (3121) matched with the shape of the absorber (Q), the grooves (3121) are arranged along the circumferential direction, the grooves (3121) comprise a long axis and a short axis which are perpendicular to each other, the long axis of the grooves (3121) is parallel to the axis of the guide surface (301), the short axis of the grooves (3121) is perpendicular to the axis of the guide surface (301), and the bottom of the grooves (3121) is provided with a screen structure (313) to form a forming area of the absorber (Q); each forming area periodically rotates over the first fiber accumulation area (X1) along with the forming unit (31) under the driving of the rotary driver; defining: the area near the circumferential centre line of the screen structure (313) is a central area (313 a), and the end area of the screen structure (313) far away from the circumferential centre line is an edge area (313 b); the edge region (313 b) has an open area ratio that is less than the open area ratio of the central region (313 a); the orthographic projection of the rear end of the flow guide (222) in the forming area corresponds to a central area (313 a) of the screen structure (313) in the forming area;

wherein at least a section of the cross-sectional area of the flow guide (222) increases gradually in the flow direction of the gas flow.

2. The absorber forming apparatus (100) according to claim 1,

the orthographic projection length (L) of the flow guide piece (222) on the forming area is 200mm-300mm.

3. The absorber forming apparatus (100) according to claim 1, wherein the suction guide unit (30) further has an air draft channel (303) provided inside the guide surface (301) and at least one main air draft channel (B1);

the main guide air ducts (B1) are radially arranged in the circumferential direction of the forming unit (31), and the main guide air ducts (B1) are both arranged between the guide surface (301) and the air draft channel (303) and communicate the guide surface (301) with the air draft channel (303) so as to form a guide surface main opening (30 a) and an air draft main opening (H1) on the guide surface (301) and the air draft channel (303); the portion of the outlet (221) corresponding to the outer periphery of the molding unit (31) forms the first fiber-collecting region (X1) that covers at least the guide surface main opening (30 a).

4. The absorber forming apparatus (100) according to claim 3,

the central region (313 a) has an open porosity of 40% to 60%;

the edge region (313 b) has an open porosity of 30% to 40%.

5. The absorber forming apparatus (100) according to claim 3, wherein the first fiber stacking region (X1) has:

an inlet on an upstream side in a rotation direction of the molding unit (31); wherein the flow guide (222) is arranged in the fibre transport unit (2) near the inlet side.

6. The absorber forming apparatus (100) according to claim 3, wherein the suction guide unit (30) further includes:

a secondary guide air duct (B2) arranged inside the guide surface (301), wherein the secondary guide air duct (B2) is communicated to the forming unit (31) and is arranged at the downstream side of the main guide air duct (B1); the secondary guide air duct (B2) is arranged between the guide surface (301) and the air suction channel (303), and communicates the guide surface (301) with the air suction channel (303) to form a guide surface auxiliary opening (30B) and an air suction auxiliary opening (H2) on the guide surface (301) and the air suction channel (303); the part of the output port (221) corresponding to the periphery of the molding unit (31) is used for forming a second fiber accumulating area (X2) at least for fully covering the guide surface auxiliary opening (30 b); under the drive of the rotary driver, each molding area periodically rotates along with the guide surface (301) to pass through the first fiber accumulation area (X1) and the second fiber accumulation area (X2) in turn.

7. The absorber forming apparatus (100) according to claim 6,

the effective cross-sectional area of the air draft main opening (H1) is larger than the sum of the effective cross-sectional areas of the forming areas corresponding to the absorbers in the range of the first fiber accumulating area (X1);

the effective cross-sectional area of the air draft auxiliary opening (H2) is smaller than that of the air draft main opening (H1).

8. The absorber forming apparatus (100) according to claim 6,

along the rotating direction of the guide surface (301), the adsorption guide unit (30) further comprises a conveying area (C) which is arranged inside the guide surface (301) and is positioned at the downstream side of the secondary guide air duct (B2).

9. The absorber forming apparatus (100) according to claim 8,

the adsorption guide unit (30) further includes a blowing zone (D) provided inside the guide surface (301) and located on a downstream side of the conveyance zone (C).

10. The absorber forming apparatus (100) according to claim 8, further comprising:

and the clamping and pressing unit (5) is arranged on the periphery of the conveying area (C).

11. The absorber forming apparatus (100) according to claim 9, wherein the suction guide unit (30) further includes: the cleaning area (E) is arranged inside the guide surface (301) and located on the downstream side of the blowing area (D), a blowing mechanism is arranged inside the cleaning area (E), and a suction mechanism is arranged outside the cleaning area (E).

12. The absorber forming apparatus (100) according to claim 11, further comprising:

a negative pressure receiving mechanism (6) arranged at the downstream side of the conveying area (C), wherein the negative pressure receiving mechanism (6) is provided with a receiving surface which starts from the boundary between the conveying area (C) and the blowing area (D) and extends to at least the boundary between the blowing area (D) and the cleaning area (E) along the rotation direction of the forming unit (31); and a demolding mechanism is arranged in the blowing area (D), and the demolding mechanism demolds the absorber (Q) in the forming area to the bearing surface of the negative pressure bearing mechanism (6).

13. The absorber forming apparatus (100) according to claim 3, wherein the forming unit (31) includes:

the forming die (311) is provided with a forming through groove (3111), and the forming through groove (3111) is communicated to the main air duct (B1);

the forming plate (312) is provided with a plurality of grooves (3121), and the forming plate (312) is arranged in the forming through groove (3111) and is arranged on the centrifugal side of the screen mesh structure (313).

14. The absorber forming apparatus (100) according to claim 13, wherein the forming unit (31) further includes: and the reinforcing plate (314) is arranged at the bottom of the screen structure (313), is fixed in the forming through groove (3111) together with the screen structure (313), and is used for reinforcing and fixing the screen structure (313).

15. The absorber forming device (100) according to claim 1, further comprising:

a macromolecule conveying unit (4), wherein the outlet of the macromolecule conveying unit (4) is communicated to the inside of the fiber conveying unit (2) and is used for supplying macromolecule materials into the fiber conveying unit (2) to be mixed with the pulp fibers (P1) to form the absorber mixture.

16. The absorber forming apparatus (100) according to claim 1,

the shredding mechanism (1) is connected to an input port (211) of the fibre transport unit (2);

the crushing mechanism (1) comprises:

a housing (12) having a cylindrical structure with an inlet port (13) and an outlet port (14) that are separated from each other and communicate with each other, the outlet port (14) being communicated to the molding unit (31) through the fiber conveying unit (2);

and the knife roller (11) is rotatably connected in the shell (12) along the horizontal direction.

17. The absorber forming apparatus (100) according to claim 16, wherein the knife roll (11) includes:

a rotating shaft (111) arranged along the horizontal direction, wherein the rotating shaft (111) is rotatably connected to the shell (12) through bearings at two ends of the rotating shaft, and a first key groove (K1) is arranged on the outer circumference of the rotating shaft (111);

the blades (113) are of a disc-shaped structure, the blades (113) are arranged along the axial direction of the rotating shaft (111) and are mounted on the rotating shaft (111), a plurality of uniform and inclined toothed sheets (U1) are arranged on the outer circumference of the blades (113), and the toothed sheets (U1) are provided with cutting edges (U2); wherein, the inner circumference of the blade (113) is provided with a second key slot (K2) which is matched with the first key slot (K1), and a shaft key (112) is arranged in the first key slot (K1) and the second key slot (K2); and

and a spacer (114) provided between two adjacent blades (113).

18. The absorber forming apparatus (100) according to claim 17,

the spacer (114) has a thickness less than a thickness of the blade (113);

the spacer (114) has a thickness of 1-2.5mm.