CN114404148B

CN114404148B - Absorber manufacturing installation

Info

Publication number: CN114404148B
Application number: CN202210095288.XA
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: CN114404148A

Abstract

The invention discloses an absorber forming device which comprises an adsorption guide unit, a plurality of forming units, a rotary driver and a fiber conveying unit, wherein an air draft channel and a main guide air duct are formed in the adsorption guide unit, the rotary driver is in transmission connection with the forming units, and the fiber conveying unit is provided with an input port and an output port. The periphery of the forming unit is provided with a plurality of grooves which are arranged along the circumferential direction and the long axis direction of which is vertical to the circumferential direction, and the bottoms of the grooves are provided with a screen structure so as to form a forming area of the absorber. Each molding zone is periodically rotated past the first fiber accumulation zone with the molding unit under the drive of the rotary drive. The screen structure of the forming area comprises a central area and an edge area, and the aperture ratio of the central area is smaller than that of the edge area, so that the negative pressure of the main guide air duct can ensure the plumpness of the pulp fibers and the high polymer water-absorbent resin at two ends of the absorber, and the forming effect of the absorber in the transverse direction is improved.

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 the circumferential direction, but because the negative pressure of the middle area of the forming cavity is obviously larger than the negative pressure of the two side edge areas, the forming unit in 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 phenomenon greatly reduces the forming effect of the forming unit, and the product yield is obviously reduced.

In addition, if the conventional blade arrangement is adopted, the crushing device for manufacturing small-sized absorbent sanitary articles is very easy to cause the phenomenon that pulp fibers are not completely crushed, i.e., white spots are formed in the formed absorber, because the forming quality of the absorber is directly affected by the white spots due to the small size of the product.

In view of the above, it is necessary to develop an absorber manufacturing apparatus for solving the above problems.

Disclosure of Invention

The embodiment of the application provides an absorber forming device to solve in the shaping unit because of the negative pressure is not enough can't guarantee to be in the horizontal absorber of arranging and at the regional plumpness in both ends of fashioned in-process, and appear not completely smashing the fibrous technical problem of paper pulp in the absorber after the shaping.

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

the application provides an absorber forming device 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: the adsorption guide unit is provided with a guide surface with a circular ring structure, an air draft channel arranged inside the guide surface and at least one main air guide channel; a rotation driver which is in transmission connection with the guide surface of the adsorption guide unit; 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 main guide air ducts are radially arranged in the circumferential direction of the forming unit, the main guide air ducts are arranged between the guide surfaces and the air draft channels, the guide surfaces are communicated with the air draft channels, and a guide surface main opening and an air draft main opening are formed in the guide surfaces and the air draft channels; the part of the output port corresponding to the periphery of the molding unit forms a first fiber accumulating area which at least fully covers the main opening of the guide surface; 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 a forming area of the absorber; each molding area periodically rotates over the first fiber accumulating area along with the guide surface under the driving of the rotary driver; defining: in the molding area, an area near the circumferential center line of the screen structure is a central area, and an end area of the screen structure far away from the circumferential center line is an edge area, so that the aperture ratio of the central area is smaller than that of the edge area.

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

Further, the molding unit includes: the forming die is provided with the forming through groove, and the forming through groove is communicated to the main guide flow air channel; 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 adsorption guide unit further includes: the secondary guide air channel is arranged inside the guide surface, communicated to the forming unit and positioned on the downstream side of the main guide air channel; the secondary guide air channel is arranged between the guide surface and the air exhaust channel, and the guide surface is communicated with the air exhaust channel so as to form a guide surface auxiliary opening and an air exhaust auxiliary opening on the guide surface and the air exhaust 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 auxiliary opening of the guide surface; 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 areas corresponding to the absorbers in the first fiber accumulating area range.

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

Further, the suction guide unit may further include a blowing area provided inside the guide surface and located at a downstream side of the transfer area.

Furthermore, a negative pressure receiving mechanism is arranged at the downstream of the conveying area, the negative pressure receiving mechanism is provided with a receiving surface, and the receiving surface starts from the boundary of the conveying area and the blowing area and extends to at least 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 blowing area and used for demolding the absorber in the forming through groove to the bearing surface of the negative pressure bearing mechanism.

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

Further, in the absorbent body forming apparatus, the fiber transfer unit further includes: the flow guide piece is internally provided with a flow guide cavity penetrating through the flow guide piece from head to tail; the flow guide cavity is provided with an air inlet and an air outlet which are far away from each other and are communicated with each other, and the cross section area of at least one section of the flow guide cavity is gradually reduced in the flowing direction of the airflow, so that the caliber of the air outlet is smaller than that of the air inlet; the flow guide piece is adjustably arranged inside the fiber conveying unit along the conveying direction, so that the air outlet corresponds to the central area of the screen mesh structure in the forming area.

Furthermore, the flow guide piece also comprises an adjusting piece, and the adjusting piece is connected to the end part of the air outlet and used for adjusting the size of the air outlet.

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

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 communicating with each other while being apart from each other, the outlet port communicating with the molding unit through the fiber conveying unit; and the knife roller is rotatably connected in the shell along the horizontal direction.

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, through carrying out reasonable setting to the clearance of rubbing crusher structure's blade, reduce 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 "white point" phenomenon, show moreover and promoted rubbing crusher structure'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 along 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, thereby greatly saving the manufacturing cost and improving the production efficiency.

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 greater than that of the central area; the inside of water conservancy diversion spare has the water conservancy diversion chamber that runs through its head and the tail, and the absorber that has further solved along transverse direction CD arranges in the forming process from the side, the problem that the absorber is not enough in transverse direction CD both ends paper pulp fiber distribution has improved the plumpness at absorber both ends, and the outward appearance effect has great promotion.

Drawings

The technical solutions and other advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with 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 direction S-S.

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 forming 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 of fig. 1 taken along 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 negative pressure receiving mechanism; 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, opening a main air draft opening;

h2, exhausting and opening the air; 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 region;

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 flow guide cavity; 2222. An air inlet;

2223. an air outlet; 2224. An adjusting member.

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 the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and 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 to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "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.

As shown in fig. 1 to 4, the present embodiment provides an absorber forming apparatus 100, which is described by taking a pad product 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 for crushing a pulp sheet P0 into pulp fibers P1 to form an absorber mixture and conveying the absorber mixture to a downstream side, the absorber mixture being formed into a predetermined absorber Q, includes a crushing mechanism 1, a fiber conveying unit 2, a fiber stacking mechanism 3, a polymer conveying unit 4, a nip unit 5, and a negative pressure receiving mechanism 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 roll 11 is a crushing roll, and 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 the blade and the blade is relatively large, incompletely crushed fibers occur when the pulp sheet P0 is crushed, and such incompletely crushed pulp fibers converge to form "white spots" after being formed into an absorber. Especially, in the case of small-sized absorbent articles such as sanitary napkins and panty liners, the quality of the product is reduced because the product itself is small and the "white spots" appear in the absorbent body, which not only affect the absorption performance, but also are visually recognized by the naked eye. Of course, if used in relatively large products for baby/adult diapers, the "white spots" are not noticeable and do not affect the quality of the product.

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

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 spacer 114 has a thickness smaller than that 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. The thickness N of the spacer 114 is in the range of 1-2.5mm, i.e., the gap between two adjacent blades 113 is in the range of 1-2.5mm, so that the gap between the two blades 113 can be adjusted to 0.2-0.8 times 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 blade 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 absorber Q to be formed subsequently.

Further, the fiber stacking mechanism 3 located on the downstream side of the crushing mechanism 1 has a small hole in its interior in the suction region with respect to the main chamber of the fiber feeding unit 2, and therefore, if the forming 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 fullness at both ends in the width direction of the absorber Q cannot be ensured.

In order to solve the problem, please continue to refer to fig. 1, in the present 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 that 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 for conveying a polymer material (also called polymer water-absorbent resin) to the fiber conveying unit 2 in a certain proportion, 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 a suction guide unit 30, a plurality of annular molding units 31, and a rotary drive (not shown).

The adsorption guide unit 30 includes a guide surface 301 having a circular ring structure, an air draft channel 303 disposed inside the guide surface 301, at least one main guide air duct B1, and at least one sub guide air duct B2. The guide surface 301 is also referred to as a drum, the circumferential surface of which has a uniformly open drum-like structure.

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 the molding units 31 surround a circular ring structure as the guide surface 301 rotates.

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 in the circumferential direction of the molding unit 31, 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 conforming to the outer shape of the absorber, 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 over the first fibre accumulation region X1 with the guide surface 301 under the drive of 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 time water conservancy diversion wind channel B2 equipartition is arranged between guide face 301 and convulsions passageway 303 to be linked together guide face 301 and convulsions passageway 303, be used for forming guide face on guide face 301 and convulsions passageway 303 and assist opening 30B and convulsions and assist opening H2. 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, air draft forms an air outlet area A, the outside of the air outlet area A is connected with a negative pressure mechanism, and the negative pressure mechanism can be an exhaust fan. 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 main guide duct B1 and the secondary guide duct 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 convulsions passageway 303 and adjust convulsions main opening H1 and convulsions separately and assist opening H2's flashboard or valve etc. through adjustment flashboard/valve opening effective area's size, can adjust main water conservancy diversion wind channel B1 and inferior water conservancy diversion wind channel B2's negative pressure size. 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 weak negative pressure is provided in the range of the transfer zone C, so that the absorbent body Q is stably conveyed 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 a blowing area D provided inside the guide surface 301 and on the downstream side of the guide duct B2 for blowing air when the absorbent bodies Q in the recesses 3121 in the forming unit 31 are released from the mold.

In this embodiment, the absorber forming apparatus 100 further includes a negative pressure receiving mechanism 6, the negative pressure receiving mechanism 6 is disposed at a 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 a boundary between the blowing area D and the cleaning area E along a rotation direction of the forming unit 31, for receiving and conveying the absorber Q after being demolded. The blowing area D corresponds to the non-air-draft opening H3 of the air draft channel 303, 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. 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 released from 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 may be divided into different areas according to the appearance and the required size of the product to be 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 absorbent body manufacturing apparatus which is often used at present, the longitudinal direction of the mold B 'of the forming die a' corresponds to the absorbent body 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 in this way is limited in forming quantity, and in this arrangement way, after the product shape is cut by the product cutter in the rear end process of the process, the direction-adjusting and position-adjusting device is required to turn 90 degrees for the semi-finished product of the absorbent sanitary product, and then the subsequent processes of compounding with the small bag 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 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 periphery of the forming unit 31 is provided with grooves 3121 that conform 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 that are 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 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 an arc-shaped plate structure, and has a plurality of concave grooves 3121, in which a direction in which a major axis of the concave groove 3121 extends coincides with the lateral direction CD, and a direction in which a minor axis of the concave groove 3121 extends coincides with the circumferential direction. The thickness of the forming plate 312 is the thickness of the absorber Q after forming, so the thickness can be set according to different thickness requirements of the product.

The forming plate 312 is disposed in the forming through groove 3111 and disposed on the 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 polymeric 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, the reinforcing plate 314 is used 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 enhance the installation strength of the screen structure 313.

In this embodiment, the area near the circumferential centerline of the screen structure 313 is defined as a central area 313a, and the end area of the screen structure 313 away from the circumferential centerline is defined as an edge area 313b, so that the aperture ratio of the central area 313a is smaller than that of the edge area 313 b. The central region 313a has an aperture ratio of 30% to 40%, preferably 35%; the opening ratio of the edge region 313b is 40% to 60%, preferably 50%.

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 n forming through grooves 3111 corresponding to the angular range a, that is, S2 > n S1, preferably, S2 ≧ (1.2-2) × S1.

In still another embodiment, as shown in fig. 10, the present embodiment provides an absorbent body Q forming apparatus 100 in which the fiber feeding unit 2 further includes a streamlined flow guide member 222, and the flow guide member 222 is adjustably provided inside the fiber feeding unit 2 in the feeding direction. The inside of the flow guide 222 has a flow guide cavity 2221 passing through the head and the tail thereof. Flow guide cavity 2221 has an air inlet 2222 and an air outlet 2223 that are far away from each other and communicate with each other, and at least a section of the cross-sectional area of flow guide cavity 2221 gradually decreases in the flow direction of the air flow, so that the aperture of air outlet 2223 is smaller than the aperture of air inlet 2222, that is, air outlet 2223 corresponds to central region 313a of screen structure 313 in the molding region.

The rotation direction of the molding unit 31 is clockwise rotation, and the guide 222 is arranged on the upstream side of the molding path. 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.

Further, the projection of the air outlet 2223 of the air guide member 222 in the circumferential direction of the forming unit 31 is 1/4 to 1/2 of the arc length of the first fiber accumulating area X1. Preferably, a projection of the air outlet 2223 of the air guide member 222 in the circumferential direction of the forming unit 31 is an arc length 1/3 of the first fiber accumulating area X1, as shown in fig. 1.

Since the opening ratio of the central region 313a of the mesh structure 313 is smaller than that of the edge regions 313b thereof, when the mixture of the pulp fibers P1 and the polymeric water-absorbent resin simultaneously acts on the mesh structure 313, the fiber accumulation amount of the edge regions 313b is larger than that of the central region 313 a.

In order to obtain an absorbent body Q with a uniform thickness, in the present embodiment, the air inlet 2222 of the air guiding element 222 is set to be larger than the air outlet 2223, so that, in the early stage of forming the absorbent body Q, when the forming unit 31 rotates to the first fiber accumulation area X1 corresponding to the main air duct B1, a large amount of mixture of pulp fibers P1 and the polymeric water absorbent resin mainly acts on the central area 313a of the screen structure 313, and the air guiding element 222 partially shields the edge area 313B of the screen structure 313, so that a small amount of mixture of pulp fibers P1 and the polymeric water absorbent resin acts on the edge area 313B of the screen structure 313, thereby making the thickness of the middle area of the absorbent body Q formed at this stage larger than the thickness of the edge 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 central region 313a of the mesh structure 313 has a smaller opening ratio than the edge region 313b, a larger amount of the mixture of the pulp fibers P1 and the polymeric water-absorbent resin acts on the edge region 313b 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-molecular absorbent resin at the two ends of the absorber Q are not distributed enough in the forming process of the absorber Q arranged along the transverse direction CD is further solved from the side, the plumpness of the two ends of the absorber Q is improved, and the appearance effect is greatly improved.

Further, the guiding element 222 further includes an adjusting element 2224 connected to an end of the air outlet 2223 for adjusting the size of the air outlet 2223, and the two adjusting elements 2224 adjust the flow direction of the air flow to 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 apparatus 100.

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

Radius of mesh a ₁ 、a ₂ 、a ₃ 8230a _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.

The absorber forming apparatus provided in the embodiments of the present application is described in detail above, and the principles and embodiments of the present application are explained in detail herein by applying specific examples, and the description of the embodiments is only used to help understanding the technical solutions and core ideas 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) which is provided with a guide surface (301) with a circular ring structure, an air draft channel (303) arranged inside the guide surface (301) and at least one main air guide channel (B1);

a rotation driver which 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;

wherein the main guide air duct (B1) is radially arranged in the circumferential direction of the forming unit (31), the main guide air duct (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 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 part of the output port (221) corresponding to the outer periphery of the molding unit (31) forms a first fiber-stacking area (X1) which at least fully covers the guide surface main opening (30 a); 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 guide surface (301) under the driving of the rotary driver; defining: in the molding zone, the area near the circumferential midline of the screen structure (313) is a central area (313 a), the end area of the screen structure (313) far away from the circumferential midline is an edge area (313 b), and the aperture ratio of the central area (313 a) is smaller than that of the edge area (313 b);

wherein the central region (313 a) has an open porosity of 30-40%; the edge region (313 b) has an open area ratio of 40% to 60%.

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

a forming plate (312) having a plurality of the grooves (3121), the forming plate (312) being disposed within the forming channel (3111) and on an eccentric side of the screen structure (313).

3. The absorber forming apparatus (100) according to claim 2, wherein the forming unit (31) further includes: and the reinforcing plate (314) is arranged at the bottom of the screen mesh structure (313), is fixed in the forming through groove (3111) together with the screen mesh structure (313), and is used for reinforcing and fixing the screen mesh structure (313).

4. The absorber forming apparatus (100) according to claim 1, wherein the suction guide unit (30) further includes:

a secondary guide air duct (B2) which is arranged inside the guide surface (301), is communicated to the forming unit (31) and is positioned at the downstream side of the primary guide air duct (B1); the secondary guide air duct (B2) is arranged between the guide surface (301) and the air draft channel (303), communicates the guide surface (301) with the air draft channel (303) and is used for forming a guide surface auxiliary opening (30B) and an air draft auxiliary opening (H2) on the guide surface (301) and the air draft channel (303); the part of the output port (221) corresponding to the outer periphery of the molding unit (31) is used for forming a second fiber accumulating area (X2) which at least fully covers 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 accumulating area (X1) and the second fiber accumulating area (X2) in turn.

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

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).

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

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).

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

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).

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

and a nip unit (5) disposed on the outer periphery of the conveying area (C).

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

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

11. The absorber forming apparatus (100) according to claim 1, wherein the fiber conveying unit (2) further includes:

the flow guide part (222) is internally provided with a flow guide cavity (2221) penetrating through the flow guide part (222) from head to tail, the flow guide cavity (2221) is provided with an air inlet (2222) and an air outlet (2223) which are far away from each other and communicated with each other, and the cross section area of at least one end of the flow guide cavity (2221) is gradually reduced in the flowing direction of air flow, so that the caliber of the air outlet (2223) is smaller than that of the air inlet (2222);

wherein the flow guide (222) is adjustably arranged in the interior of the fiber conveying unit (2) in the conveying direction, so that the air outlet opening (2223) corresponds to a central region (313 a) of the screen structure (313) in the molding region.

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

the air guide part (222) further comprises an adjusting part (2224), and the adjusting part (2224) is connected to the end part of the air outlet (2223) and used for adjusting the size of the air outlet (2223).

13. The absorber forming apparatus (100) according to claim 1, further comprising a polymer conveying unit (4), an outlet of the polymer conveying unit (4) being communicated to an inside of the fiber conveying unit (2) for feeding a polymer material into the fiber conveying unit (2) to be mixed with the pulp fibers (P1) to form the absorber mixture.

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

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

the crushing mechanism (1) comprises:

a housing (12) having a cylindrical structure, the housing (12) having 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.

15. The absorber forming apparatus (100) according to claim 14, 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);

a plurality of blades (113), wherein 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 installed 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).

16. The absorber forming apparatus (100) according to claim 15,

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

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