CN219629945U

CN219629945U - Forming device

Info

Publication number: CN219629945U
Application number: CN202222595688.5U
Authority: CN
Inventors: 夏双印; 杨雄杰; 肖超
Original assignee: SHANGHAI ZHILIAN PRECISION MACHINERY CO Ltd
Current assignee: SHANGHAI ZHILIAN PRECISION MACHINERY CO Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-09-05
Anticipated expiration: 2032-09-29

Abstract

The embodiment of the utility model provides a forming device, which comprises a forming component and an isolation component, wherein the forming component comprises a cavity and a dispersing opening, the isolation component comprises an isolation belt and a driving module, the isolation belt comprises a pair of endless belts and at least one isolation strip connected with the pair of endless belts, the isolation belt and the pair of endless belts define an accommodating space, the driving module comprises a plurality of wheel sets, the endless belts are wound on the plurality of wheel sets, at least one part of the isolation belt is arranged corresponding to the dispersing opening, the forming component fills an absorbent material into the accommodating space through the dispersing opening to form a network-shaped structure, and adjacent network-shaped structures are isolated by the isolation strip, so that the formed core is in a separated state directly, a cutter and a conveying device for separation are prevented from being arranged at the downstream, the structural complexity is reduced, and the length of a production line is shortened.

Description

Forming device

Technical Field

The utility model relates to a forming device, in particular to a forming device of a disposable sanitary article core body.

Background

In disposable sanitary products, the core is the primary absorbent carrier for the liquid, typically formed by entangled and stacked discrete fluff pulp fibers, and typically the core is required to be in a separate sheet form for incorporation into the facing and backing layers to form a separate product.

In order to make the core take the shape of an independent sheet, there are generally two ways in which a molding device includes a molding member, a mold release cylinder to which a negative pressure is connected, and a transfer roller for transferring the core from the mold release cylinder to a substrate, a mold provided with a structure corresponding to the shape of the core is fixed to the mold release cylinder, dispersing fluff pulp fibers on a die through a molding assembly to form a core body, demolding to form independent sheet bodies, however, for larger sheets, such as the core of an adult diaper or the core of a disposable care pad, the structural size limitations will not apply this approach, for such cores, a second way is therefore generally used, as shown in fig. 1, the forming device comprising a forming assembly 1, a first conveyor 2 arranged downstream, a slitting device 3 and a second conveyor 4, the forming assembly 1 continuously forming large-area sheets on a carrier web 5, being conveyed via the first conveyor 2 to the slitting device 3, the slitting device 3 being conveyed by the second conveyor 4 after slitting, and the conveying speed of the second conveying device 4 is larger than that of the first conveying device 2, so that the slit sheet is separated for subsequent operation, in which way it is necessary to slit after shaping, meanwhile, the conveying devices with different speeds are needed, on one hand, the cutting device is used to greatly increase the equipment cost and the structural complexity, on the other hand, as two sections of conveying devices with speed difference are needed, the length of the production line is prolonged, the requirements of partial sites can not be met, particularly in the case of the current disposable hygienic product production line length reaching 40 meters or more, it is more necessary to be able to shorten the production line length to reduce the field requirements.

Disclosure of Invention

Therefore, the utility model provides a forming device for solving the technical problems.

A molding device comprises a molding component and an isolation component, wherein,

a forming assembly including a cavity and a dispensing opening for dispensing the absorbent material therethrough;

the isolation assembly comprises an isolation belt and a driving module, wherein the isolation belt comprises a pair of annular belts arranged at intervals and at least one isolation strip connected with the pair of annular belts, an accommodating space is defined between the isolation strip and the pair of annular belts, the driving module comprises a plurality of wheel sets, the annular belts are wound on the plurality of wheel sets, at least one part of the isolation belt is correspondingly arranged with a scattering port, the forming assembly fills absorbent materials into the accommodating space through the scattering port to form a network-shaped structure body, and the adjacent network-shaped structure bodies are isolated by the isolation strip.

Further, if the width of the spreading opening is D1 and the distance between the pair of endless belts is D2, D2 is not less than D1.

Further, the endless belts are positioned outside the dispersing openings, and the dispersing openings are positioned between the pair of endless belts.

Further, the lengths of the adjacent accommodating spaces are equal or unequal.

Further, the isolating strip and the endless belt are integrally formed.

Further, the wheel set comprises a first wheel set and a second wheel set which are adjacent to the scattering openings, the isolation belt comprises a first section which is positioned between the first wheel set and the second wheel set, the first section is adjacent to the scattering openings, the scattering openings are planar, and the first section is planar.

Further, the wheel set comprises a pair of riding wheels which are arranged at intervals, and each riding wheel is correspondingly arranged with an endless belt.

Further, at least one wheel set is connected with the power device.

Further, the endless belt is a synchronous belt.

Further, adjacent spacer bars may have equal or unequal widths.

The beneficial effects are that: the embodiment of the utility model provides a forming device, which comprises a forming component and an isolation component, wherein the forming component comprises a cavity and a dispersing opening, the isolation component comprises an isolation belt and a driving module, the isolation belt comprises a pair of endless belts and at least one isolation strip connected with the pair of endless belts, the isolation belt and the pair of endless belts define an accommodating space, the driving module comprises a plurality of wheel sets, the endless belts are wound on the plurality of wheel sets, at least one part of the isolation belt is arranged corresponding to the dispersing opening, the forming component fills an absorbent material into the accommodating space through the dispersing opening to form a network-shaped structure, and adjacent network-shaped structures are isolated by the isolation strip, so that the formed core is in a separated state directly, a cutter and a conveying device for separation are prevented from being arranged at the downstream, the structural complexity is reduced, and the length of a production line is shortened.

Drawings

Fig. 1 is a schematic diagram of a molding apparatus according to the prior art.

FIG. 2 is a schematic view of a molding apparatus according to an embodiment of the present utility model;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a schematic diagram of a separator;

illustration of the elements:

molding the assembly 1, 10;

a first conveying device 2; a slitting device 3; a second conveying device 4; a supporting net 5;

a dispensing port 100; a first wheel set 211; a second wheel set 212; a riding wheel 2121; axle 2122; a separator 22; a first section 220; endless belts 221, 222; spacer 223; the accommodating space 224.

Detailed Description

Referring to fig. 2-4 in combination, the present utility model will be further described with reference to these drawings.

The device for forming the disposable sanitary article core provided by the embodiment of the utility model comprises a forming assembly 10 and an isolation assembly.

The molding assembly 10 includes a molding box including a cavity and a dispensing port 100 for dispensing an absorbent material through the dispensing port 100.

The cavity is a bench-shaped space for receiving and accommodating the absorbent material, and it is understood that the shape of the space may be arranged according to actual needs, and is not limited herein, and of course, in some other embodiments, the cavity may be further provided with, for example, a dispersing device, etc. for further dispersing the absorbent material, and may uniformly disperse the absorbent material through the dispersing opening 100.

The absorbent material may be fibers, such as fluff pulp fibers or rayon or other suitable fibrous materials, or a mixture of fibers and superabsorbent material (SAP).

In addition, the forming module 10 is provided with a fiber dispersing device and a conveying device upstream to convey the absorbent material, such as fiber or a mixture of fiber and super absorbent material, into the cavity, preferably, the conveying device is a pneumatic conveying device, so that the cavity is in a positive pressure state, and the absorbent material is easy to be dispersed through the dispersing port 100.

Specifically, the fiber dispersing device is a smashing device, and the smashing device is used for smashing and separating fiber raw materials such as fluff pulp plates to form dispersed fibers, so that the fibers are easily sent by air and are scattered, and then are wound and stacked on the supporting net to form a network-shaped structure body.

The forming assembly 10 is further provided with a supporting net below the distributing openings 100, wherein the supporting net is provided with a plurality of holes for air to pass through, so that when the absorbent material moves along with the air, the air passes through the holes, and the absorbent material is trapped by the supporting net to be wound and stacked on the supporting net to form a network-shaped structure, and it can be understood that the network-shaped structure is a core, and for convenience of description, the core is referred to as a network-shaped structure, and in addition, the hole diameter of the holes is matched with the size of the absorbent material, so that the loss amount of the absorbent material passing through the holes is reduced, and the efficiency of forming the core is improved.

Further, the dispensing opening 100 is a plane, and the supporting net is also a plane in the area corresponding to the dispensing opening 100.

Further, the carrier web may also be a web, i.e., the forming assembly 10 forms the core directly on the web, which may be a porous flexible material such as toilet tissue, nonwoven, or the like.

An adsorption device may be further disposed below the spreading port 100 to assist the air flow passing through the supporting net, where a typical adsorption device includes an adsorption cavity connected to a negative pressure system, the adsorption cavity includes adsorption ports disposed at intervals corresponding to the spreading port 100, when the negative pressure system forms a negative pressure in the adsorption cavity, an adsorption zone having a negative pressure is formed in a region adjacent to the adsorption ports, so that an air flow direction of the region between the adsorption zone and the spreading port 100 is from the spreading port 100 to the adsorption zone, and when an absorbent material is present in the air flow, the absorbent material moves along with the air flow from the spreading port 100 to the adsorption zone.

The isolation assembly is used for forming a separated core body, and comprises an isolation belt 22 and a driving module.

The isolation belt 22 comprises a pair of endless belts (221, 222) and a plurality of isolation strips 223 connected with the pair of endless belts (221, 222), wherein the isolation strips 223 and the pair of endless belts (221, 222) define a containing space 224, the endless belts 221 are continuous sheet-shaped, comprise a length direction and a width direction, are connected end to end along the length direction to form a ring shape, the pair of endless belts 221 are equal in length, and are arranged at intervals in parallel, the isolation strips 223 are connected to the pair of endless belts 221, so that the isolation belt 22 is approximately in a 'day' shape, in addition, the containing space 224 refers to a space with the inner side surfaces of the pair of endless belts (221, 222) and the isolation strips 223 as side walls, and the height of the space is the thickness of the endless belts (221, 222) and the isolation strips 223.

It will be appreciated that, since the endless belts (221, 222) are endless, when only one spacer 223 is provided, two accommodation spaces 224 are defined by one spacer 223 and the pair of endless belts (221, 222), the two accommodation spaces 224 being partitioned by the spacer 223, that is, when cores are formed in the two accommodation spaces 224, two cores separated by the spacer 223 are formed.

It will be appreciated that the spacer 22 should be configured such that at least a portion corresponds to the dispensing opening 100 such that the forming assembly 10 is capable of filling the receiving space 224 with absorbent material through the dispensing opening 100, but is not limited to completely filling the receiving space 224, and that the dispensing opening 100 continuously fills the receiving space 224 with absorbent material as the endless belts (221, 222) move along their length, and that at least at the locations corresponding to the spacer 223 will not be filled with absorbent material due to the spacer 223 between adjacent receiving spaces 224, such that a discontinuous core is formed, as will be appreciated, such discontinuous portions are separated by the spacer 223.

Further, if the width of the dispersing port 100 is D1 and the interval between the endless belts (221, 222) is D2, d2 is equal to or greater than D1, so that the core having the same width as the dispersing port 100 can be formed, so that on one hand, the dispersing port 100 is fully utilized, on the other hand, the absorbent material passing through the dispersing port 100 is prevented from being dispersed on the endless belts (221, 222), the absorbent material is wasted and the driving module is prevented from being influenced, it is understood that the interval between the endless belts (221, 222) is the width of the accommodating space 224, and when D2 > D1, the core cannot fully fill the accommodating space 224, and the areas not filled with the absorbent material exist at both sides of the accommodating space 224.

Further, the endless belts (221, 222) are located outside the dispensing opening 100, and the dispensing opening 100 is located between the pair of endless belts (221, 222).

It is understood that the lengths of the adjacent receiving spaces 224 may be equal or different, when the lengths of the adjacent receiving spaces 224 are equal, adjacent cores are formed identically, and when the lengths of the adjacent receiving spaces 224 are different, adjacent cores are formed differently, and the lengths of the receiving spaces 224 are the intervals between the adjacent barrier ribs 223.

It will be appreciated that when there are several spacer strips 223, the widths of adjacent spacer strips 223 may be equal or unequal, such that the spacing distance between adjacent cores is equal or unequal.

Further, the isolating strips 223 are detachably arranged on the endless belts (221, 222) and are used for adapting to different isolating requirements by replacing the isolating strips 223 with different widths or different forms.

Further, the spacer 223 is integrally formed with the endless belt (221, 222).

The driving module comprises a plurality of wheel sets, the endless belts (221, 222) are wound on the plurality of wheel sets and are used for driving the isolation belt 22 to continuously move, so that cores are continuously formed in the accommodating space 224, and as can be understood, the cores are separated by the isolation strips 223.

It will be appreciated that a number of said wheelsets are provided around the perimeter of the forming box, in this embodiment four wheelsets are provided, one at the top left, bottom left, top right and bottom right of the forming box, respectively, it will be appreciated that five, six or more wheelsets may be provided, however, preferably at least three wheelsets should be provided to enable the spacer 22 to be provided around the perimeter of the forming box with at least a portion passing through the dispensing opening 100.

The wheel sets include a first wheel set 211 and a second wheel set 212 disposed adjacent to the dispensing opening 100, the spacer 22 includes a first section 220 disposed between the first wheel set 211 and the second wheel set 212, the first section 220 being adjacent to the dispensing opening 100 and forming a core separated by a spacer 223 when the absorbent material is dispensed from the dispensing opening 100.

It will be appreciated that the dispensing orifice 100 is planar and the first section 220 is planar.

The wheel set includes a pair of belt pulleys 2121 disposed at intervals, and each belt pulley 2121 is disposed corresponding to the endless belt (221, 222) to support the corresponding endless belt (221, 222).

Further, the wheel set further includes an axle 2122, and the supporting roller 2121 is disposed on the axle 2122.

Further, at least one wheel set is coupled to a power device to drive the endless belt 221.

Further, the endless belts (221, 222) are synchronous belts, and include a plurality of first teeth, and the supporting roller 2121 is provided with a plurality of second teeth, and the first teeth are meshed with the second teeth so as to better and stably drive the isolation belt 22 to move.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims

1. A molding device is characterized by comprising a molding component and an isolation component, wherein,

2. The molding apparatus as claimed in claim 1, wherein if the width of the spreading opening is D1 and the distance between the pair of endless belts is D2, D2 is equal to or greater than D1.

3. The molding apparatus as defined in claim 2, wherein said ring belt is located outside of a dispensing opening, said dispensing opening being located between a pair of ring belts.

4. The molding apparatus of claim 2, wherein adjacent receiving spaces are equal or unequal in length.

5. The molding apparatus as defined in claim 2, wherein said spacer is integrally formed with said endless belt.

6. The molding apparatus of claim 2, wherein said wheel set includes a first wheel set and a second wheel set adjacent to a dispensing opening, said spacer including a first section between said first wheel set and said second wheel set, said first section adjacent to said dispensing opening, said dispensing opening being planar, said first section being planar.

7. The molding apparatus as defined in claim 6, wherein said wheel set includes a pair of spaced-apart carrier pulleys, each carrier pulley being disposed in correspondence with an endless belt.

8. The forming apparatus of claim 6, wherein at least one wheel set is coupled to a power unit.

9. The molding apparatus as defined in claim 6, wherein said endless belt is a synchronous belt.

10. The molding apparatus as defined in claim 6, wherein adjacent spacer bars are equal or unequal in width.