CN204766192U - Absorb core former - Google Patents
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- CN204766192U CN204766192U CN201520333937.0U CN201520333937U CN204766192U CN 204766192 U CN204766192 U CN 204766192U CN 201520333937 U CN201520333937 U CN 201520333937U CN 204766192 U CN204766192 U CN 204766192U
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Abstract
The utility model relates to an absorptivity health supplies automated production device fabrication field discloses an absorb core former, including set gradually with first core forming device, second core forming device and conveyor, it applys the device to set up intermediate material between two core forming device, first belt pressurization unit and second material rubber coating device, being located the continuous position of first core forming device and first belt pressurization unit, conveyer belt below set up first vacuum chamber conveyer on, the place ahead of applying the device at intermediate material sets up first material rubber coating device, rear at second core forming device's direction of delivery, it rolls over the unit to set up second belt pressurization unit and package, it pressurizes with the second belt and sets up second vacuum chamber conveyer on the continuous position of unit to be located second core forming device in conveyer belt below. The utility model discloses relatively the advantage is many for the absorption core and the existing product of production, and the save material cost is operateed to the high -speed of equipment that can satisfy again.
Description
Technical field
This utility model relates to absorbent article automated production equipment and manufactures field, particularly relates to a kind of absorptive core former.
Background technology
The absorbent article such as sanitary towel, diaper generally forms by contacting the layer of structure such as the liquid-tight bottom that uses and the absorptive core layer between liquid permeability top layer and liquid-tight bottom primarily of the liquid permeability top layer used with contact skin, non-skin.Wherein absorptive core layer mainly has the function of absorption, storage, pinning body fluid, is the key structure level weighing absorbent article absorbent properties quality.
Absorptive core layer is generally mixed according to a certain percentage by hygroscopicity fibre and high-absorption resin particle (SAP) and designs, along with the absorbent articles such as diaper develop towards slimming, in absorptive core, the proportional amount of SAP has exceeded 50%, even reach 60-70%, this long-pending fibre to absorptive core, shaped device propose requirements at the higher level, when SAP content increases, easily block the mesh of forming screens; In addition, in use, easily there is conglomeration, cracking, fault-layer-phenomenon in overall construction intensity step-down to diaper, although can by pressurization or pattern embossing to the further compacting of absorptive core, but absorptive core is pressed more real, absorb body fluid and will become slower, likely cause side leakage, in addition, press more real, product feel can be hard, and this is undesirable concerning use consumer.
In order to address this problem, preformed " compound core body " is adopted to solve the problems referred to above in current industry, this kind of " compound core body " often directly adopts SAP sprinkling to be dispersed in containing on fibroreticulate lofty sheet, this fleece lofty sheet has a fixed gap and three-dimensional height, for depositing SAP, then fleece lofty sheet levels at least one deck water absorbent sheet sheet material layers is set, this Water-absorbing sheet adopts dust-free paper in the majority, carry out bonding with PUR between at all levels to fix, thus form the absorptive core of " compound core body " structure style of a kind of multilayer material composition.Like this, although make wholesomeness hygienic article become thin, also solve absorptive core structural strength step-down, easily occur conglomeration, cracking, fault-layer-phenomenon.But it is high to there is price in this " compound core body ", and the interpolation restricted levels of SAP, general high-load is more difficult, this preformed " compound core body " is adopted to have certain thickness and weight due to material itself in addition, adopt conventional air-expanding shaft uncoiling mode wayward, also will adopt special uncoiling mode, and in production process, it is serious that dust-free paper Soft flocks fall bits, impacts environment and the clean of production equipment; In addition, this preformed " compound core body " material is adopted to restrict the raising of speed of production.
Chinese patent " equipment and method for the formation of air-laid absorbent cores " (application number: 200680055344.6) disclose a kind of equipment and method, it mainly adopts two absorption pad briquetting rollers relatively to operate and forms mutually stacked absorptive core, and coating layer material is introduced on two absorption pads separately briquetting roller, simultaneously two absorption pads separately between briquetting roller (tangent place) introduce tundish clad material, then one-body molded, through the transfer of one of them absorption pad briquetting roller, and send into subsequent processing through the further compacting of hold down gag.This equipment have employed on briquetting roller, namely introduces coating layer material, during by forming room before two absorption pad molding, have impact to the vacuum magnitude on briquetting roller, in addition, the width of clad material is often wider than the width on briquetting roller, like this, clad material through briquetting roller, whole coated width, negative-pressure air-flow is not be uniformly distributed, at least, the both lateral sides of clad material, affects by negative pressure, fluctuation of service.The further pressure holding coating layer material of pressure holding parts may be needed.Also have, two briquetting rollers run up relatively, at clamping part, mutually circumscribed region completes compound, the integrated molding of two-layer absorptive core and intermediate layer clad material, like this, the overall compaction of two the absorbability pads formed is uniformities, and namely the first coform absorbent pad is substantially identical with the second shaping cushion compaction (bulk density).In addition, pad briquetting roller through the first pad briquetting roller and second and to complete the compound of two-layer absorptive core and intermediate layer clad material, transfer, the demoulding in mutually circumscribed region, very high to aerodynamic requirement, the control of negative pressure has certain difficulty, realize angle from machinery, realization is more difficult.
In addition, composite absorption core body is two and forms wheel subtend rolling formation, therefore requires that two rotating speeds forming wheel must be completely the same; if slightly difference, core body correspondence will be caused uneven, produce waste product; must shut down adjustment, the requirement two being formed to wheel is very high.
Equally, after two core body compounds, compound core body is close to formation wheel always and other roller surfaces roll, shift, the conveyer belt finally departing from level delivers into subsequent processing, because composite absorption core body is in repeatedly roller compaction process, repeatedly bent by towards contrary both direction, although compound core body is more soft, but bending repeatedly still can cause compound core body to have point deformation, the size being embodied in length direction increases to some extent, also there is the risk of cracking in absorptive core, adds defect rate.
Utility model content
In order to solve the problems of the technologies described above, this utility model provides a kind of absorptive core former, realizes high-speed production, and the absorptive core intensity of production is high, and quality is good.
The technical scheme that this utility model is taked is:
A kind of absorptive core former, it is characterized in that, comprise the first core forming device forming lower floor's absorptive core, form the second core forming device and conveyer device of upper strata absorptive core, described first core forming device and the second core forming device set gradually on the throughput direction of described conveyer device, between described first core forming device and the second core forming device, intermediate materials bringing device is set, first belt presser unit and the second material glue spreading apparatus, the continuous position being positioned at described first core forming device and the first belt presser unit below described conveyer belt arranges the first vacuum tank transporter, in the front of described intermediate materials bringing device, the first material glue spreading apparatus is set, at the rear of the throughput direction of described second core forming device, second belt presser unit and packing unit are set, the continuous position being positioned at described second core forming device and the second belt presser unit below described conveyer belt arranges the second vacuum tank transporter.
Further, the first embossing units is set between described first belt presser unit and the second material glue spreading apparatus.
Further, at the rear of described packing unit, the second embossing units is set.
Further, described intermediate materials bringing device comprises several deflector rolls, and described deflector roll is used for intermediate materials to strain.
Further, described first core forming device comprises the first reducing mechanism unit, the first long-pending fine chamber and the first long-pending fine assembly drum, described second core forming device comprises the second reducing mechanism unit, the second long-pending fine chamber and the second long-pending fine assembly drum, and the described first long-pending fine assembly drum and the second long-pending fine assembly drum are all arranged on above described conveyer device.
Further, be provided with one to two tongue component in the described first long-pending fine chamber and the second long-pending fine intracavity, described tongue component is parallel to the axial direction of long-pending fine drum.
Further, the described first long-pending fine chamber and the second long-pending fine chamber arrange particulate dispersion charging gear, and the distance between described particulate dispersion charging gear and described tongue component can regulate.
Further, the described first long-pending fine assembly drum and the second long-pending fine assembly drum surface are equipped with at least one mould, have die cavity in the middle part of described mould.
Further, the height of the mould die cavity on the described first long-pending fine assembly drum is less than the height of the described second long-pending fine assembly drum upper cavity.
Further, it is rectangular that described second middle part of amassing the die cavity of the mould on fine assembly drum is provided with several projections, the rectangular direction of described projection is consistent with the length direction of die cavity, and the rectangular height of described projection is less than or equal to the height of the upper cavity of the described second long-pending fine assembly drum.
Further, each long-pending fibre drum has at least one mould along its circumferential outer surface, air draught district and blowing demoulding district are drawn together in described each long-pending fine bulge, are provided with at the circumferential outer surface of described each long-pending fibre drum the belt presser unit operated that to fit in air draught region with each long-pending fibre drum.
Further, described first reducing mechanism unit and the second reducing mechanism unit form by the roller of high speed rotating, and the external peripheral surface of described roller is provided with the set of blades arranged at a certain distance.
The beneficial effects of the utility model are:
(1) have employed two long-pending fine drums separately, that is: the first long-pending fine drum and the second long-pending fine drum, the pulverizing of water-absorption fiber, discongest effect, inlet amount can control separately, water absorbing material and the Super Absorbent Polymer Particles of specification of the same race or specification not of the same race can be adopted, hygroscopicity fibre and High hydrophilous resin granule are because absorbent article function needs, often there is different size, according to the first absorptive core flexibly collocation hygroscopicity fibre and Super Absorbent Polymer Particles different from the second absorptive core, the variation of absorptive core using function can be enriched.
The centre of fine drum is amassed at the first long-pending fine drum and second, introduce intermediate materials bringing device, intermediate layer material plays " skeletal support effect " and effectively solves existing absorptive core structural strength step-down in whole composite absorption core body, easily occurs conglomeration, cracking, fault-layer-phenomenon.
(2) first long-pending fine drums and the second long-pending fine drum carry out independent demoulding formation, mould can be identical or different size, die cavity has identical or different shape and size, can obtain the absorptive core that two-layer shape and size are different, and the composite absorption core body style of molding is also abundanter.
(3) tongue component of each long-pending fine intracavity of adjustable and particulate dispersion charging gear; and then long-pending fine distribution density and the distributional pattern rousing upper fiber and absorbing particles that adjustment is corresponding; to make whole absorptive core from skin-proximal layer to skin layer dorsad; present the density gradient distribution of granule or fiber; upper and lower two-layer core body also shows different granules or fibre density; there is controllability flexibly, also improve the absorbent properties of absorbent article highly beneficial.
(4) be equivalent to make composite absorption core body online, preformed " compound core body " carries out, compared with secondary operations, having cost advantage undoubtedly with employing.
(5) absorptive core has better permeability and infiltration rate, has the structure being more suitable for human body and using, improves comfortableness.
(6) after core forming and compound, course of conveying and compacting process all complete under level, and absorptive core by alternating bending, can not can not be out of shape and ftracture.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model absorptive core former schematic diagram;
Accompanying drawing 2a is the long-pending fine drum mould embodiment front view of this utility model first;
Accompanying drawing 2b is the long-pending fine drum mould embodiment sectional view of this utility model first;
Accompanying drawing 3a is the long-pending fine drum mould first embodiment front view of this utility model second;
Accompanying drawing 3b is the long-pending fine drum mould first embodiment sectional view of this utility model second;
Accompanying drawing 3c is the long-pending fine drum mould second embodiment front view of this utility model second;
Accompanying drawing 3d is the long-pending fine drum mould second embodiment sectional view of this utility model second;
Accompanying drawing 4a is a kind of absorptive core structure of this utility model front view;
Accompanying drawing 4b is the sectional view of the absorptive core structure of Fig. 4 a;
Accompanying drawing 4c is the another kind of sectional view of the absorptive core structure of Fig. 4 a;
Accompanying drawing 5a is this utility model another kind of absorptive core structure front view;
Accompanying drawing 5b is the sectional view of the absorptive core structure of Fig. 5 a;
Accompanying drawing 6 is the another kind of absorptive core sectional view of this utility model;
Accompanying drawing 7 is the another kind of absorptive core sectional view of this utility model;
Accompanying drawing 8 is the another kind of absorptive core sectional view of this utility model.
Label in accompanying drawing is respectively:
01. first long-pending fine assembly drum; 02. first long-pending fine chamber;
03. first reducing mechanism unit; 04. first vacuum tank transporter;
05. first belt presser unit; 06. first embossing units;
07. high-absorption resin particle feed dissemination apparatus; 08. tongue component;
09. belt presser unit; 10. mould;
101. intermediate materials; 102. hygroscopicity fibre;
103. high-absorption resin particle; 104. thermosol adhesive;
11. second long-pending fine drums; 12. second long-pending fine chambeies;
13. second reducing mechanism unit; 14. second vacuum tank transporters;
15. second belt presser unit; 16. second embossing units;
17. high-absorption resin particle feed dissemination apparatus; 18. tongue component;
19. belt presser unit; 20. moulds;
21. packing unit; 22. die cavitys;
23. screen clothes; 24. supporters;
25. first is protruding rectangular; 26. second is protruding rectangular;
30. composite absorption core bodys; 31. upper strata absorptive cores;
32. lower floor's absorptive cores; 33. both sides absorptive cores;
34. both sides absorptive cores; 35. clad materials;
36. intermediate absorption core bodys.
Detailed description of the invention
Elaborate below in conjunction with the detailed description of the invention of accompanying drawing to this utility model absorptive core former.
See accompanying drawing 1, a kind of absorptive core former, comprises the first core forming device of preparation lower floor absorptive core 32, the second core forming device of preparation upper strata absorptive core 31 and the conveyer belt of conveying absorptive core.Conveyer belt is horizontally disposed with, and the first core forming device and the second core forming device are two independently structures, and both structures are identical or roughly the same, and the parallel upside being arranged on conveyer belt.
According to the direction of transfer of conveyer belt, the namely formation flow process of compound core body, absorptive core former also comprises intermediate materials bringing device, intermediate materials glue spreading apparatus, first belt presser unit 05, first embossing units 06, second belt presser unit 15, packing unit 21, with the second embossing units 16, and the first vacuum tank transporter 04 and the second vacuum tank transporter 14 be located on the downside of conveyer belt, first vacuum tank transporter 04 and the second vacuum tank transporter 14 provide vac sorb and carry out carrying the effect of absorptive core simultaneously, their upper surface, and conveyer belt is provided with perforation (not illustrating), negative-pressure adsorption effect is produced under getter device (a not illustrating) effect.First belt presser unit 05 is the same with the second belt presser unit 15 structure, is all made up of a plurality of pressure roller in inside and pressurization belt.
According to the forming process of single core body, first core forming device comprises the first long-pending fine chamber of reducing mechanism unit 03, first 02 and the first long-pending fine assembly drum 01, second core forming device comprises the second long-pending fine chamber of reducing mechanism unit 13, second 12 and the second long-pending fine assembly drum 11.First long-pending fine assembly drum 01 and the second long-pending fine assembly drum 11 are fitted with conveyer belt.
First vacuum tank transporter 04 is positioned at immediately below the first belt presser unit 05 and the first long-pending fine assembly drum 01, therefore fine assembly drum 01 is amassed at absorptive core by disengaging first, until in the whole process of compacting in the first belt presser unit 05, all be subject to the adsorption of the first vacuum tank transporter 04, and the transfer rate of the first vacuum tank transporter 04 is the same with the speed of conveyer belt, ensure that the core body after molding can be close on the conveyor belt, the carrying out of level is carried and compacting, can not skid or bend, avoid producing substandard products or equipment fault occurring and shuts down.
In like manner, second vacuum tank transporter 14 is positioned at immediately below the second belt presser unit 15 and the second long-pending fine assembly drum 11, therefore amass fine assembly drum 11 at absorptive core by disengaging second until compacting in the second belt presser unit 15 process in, all be subject to the adsorption of the second vacuum tank transporter 14, and the transfer rate of the second vacuum tank transporter 14 is also the same with the speed of conveyer belt, ensure that composite core physical ability is close on conveyer belt, the carrying out of level is carried and compacting, can not skid or bend.
Intermediate materials bringing device and intermediate materials glue spreading apparatus are located between the first core forming device and the second core forming device, preferably intermediate materials bringing device is located between the first core forming device and the first belt presser unit 05, intermediate materials bringing device has several deflector rolls, after intermediate materials 101 is strained by deflector roll, intermediate materials 101 is put on lower floor's absorptive core 32 with the angle of speed, level or the almost horizontal identical with lower floor absorptive core 32.Preferably, when intermediate materials 101 puts on lower floor's absorptive core 32, with horizontal direction, there is the angle of 0 ° ~ 3 °.Identical speed, the angle of almost horizontal, to allow intermediate materials 101 can be adhered to lower floor's absorptive core 32 surface smoothly, if speed is inconsistent or angle is too large, may skidding be caused, intermediate materials 101 and lower floor's absorptive core 32 be bonded and does not closely produce substandard products.And intermediate materials 101 position put on lower floor's absorptive core 32 is just positioned at the porch of the first belt presser unit 05, namely carry out compacting immediately after bonding, improve bonding consolidation effect.
Intermediate materials glue spreading apparatus comprises the first material glue spreading apparatus and the second material glue spreading apparatus, first material glue spreading apparatus is near described intermediate materials bringing device, and by a wherein gluing of intermediate materials 101, second material glue spreading apparatus is located between the first belt presser unit 05 and the second core forming device, and by the another side gluing of intermediate materials 101, preferably the second material glue spreading apparatus is located between the first embossing units 06 and the second core forming device, intermediate materials 101 and lower floor's absorptive core 32 bond, and after the first belt presser unit 05 and twice compacting of the first embossing units 06, again at another side gluing.
First long-pending fine assembly drum 01 and the second long-pending fine assembly drum 11 all has at least one mould 10 and 20 along its circumferential outer surface, first long-pending fine assembly drum 01 and the second long-pending fine assembly drum 11 include air draught A district and air draught B district and demoulding C district of drying, amass the circumferential outer surface of fine assembly drum 01 and the second long-pending fine assembly drum 11 along described first, have the bulging belt presser unit 09 and belt presser unit 19 that operate of fitting in air draught B region with each long-pending fibre.
A district of air draught district and B district are the regions that absorptive core material to be remained on corresponding mould by a part of region on the mould 10,20 of each long-pending fibre drum circumferential outer surface; Described blowing demoulding C district, it is by corresponding E district, region between absorptive core material transfer to the first vacuum tank transporter 04 that remains on the mould 10,20 of each long-pending fibre drum circumferential outer surface and the second vacuum tank transporter 14 and F district.
Absorptive core material is preferably made up of hygroscopicity fibre 102 and high-absorption resin particle 103, hygroscopicity fibre 102 is pulverized respectively by the first reducing mechanism unit 03 and the second reducing mechanism unit 13, discongest into the hygroscopicity fibre of single state, first reducing mechanism unit 03 and the second reducing mechanism unit 13 are made up of the roller of high speed rotating, the external peripheral surface of roller is provided with the blade composition arranged at a certain distance, gas channel is passed through by the single hygroscopicity fibre of discongesting, with the combined effect of the centrifugal force of roller, be admitted to each long-pending fine chamber passage (figure does not indicate), simultaneously with injects through high-absorption resin particle feed dissemination apparatus 07 and 17 first long-pending fine chamber 02 and second amass fine chamber 12 high-absorption resin particle 103 mix fully, accumulated in by negative pressure of vacuum suction on the mould 10 and 20 of each long-pending fibre drum circumferential outer surface.
In described each long-pending fine chamber, be also provided with tongue component 08 and 18, according to actual needs, tongue component 08 and 18 can be designed to one or more, thus the first long-pending fine chamber 02 and the second long-pending fine chamber 12 are divided into two or three with upper part.Tongue component 08 and 18 arranges near the one or both sides near the first long-pending fine chamber 02 and the second long-pending chamber, fine chamber 12 wall, as shown in Figure 1, the orientation of tongue component is the axial direction being parallel to long-pending fine drum, and this direction is also the length direction of absorptive core, absorbent article.Can through tongue component 08 and 18 when hygroscopicity fibre moves in long-pending fine chamber, and tongue component 08 and 18 can rotate around the central shaft of its length direction, tongue component has certain volume, there is certain width in radial directions, therefore to hygroscopicity fibre, there is certain barrier effect, the angle of rotation with finally fall into the amount of long-pending fine drum water absorbent surface fiber inversely, namely the anglec of rotation is larger, water-absorption fiber amount is fewer, and the high-absorption resin particle amount of falling into is more.
Therefore by the pendulum angle of the several tongue component 08 and 18 of adjustment, make it have different pendulum angles, adjust the proportional amount of high-absorption resin particle on absorptive core length direction, therefore, on the length direction of absorptive core, the density gradient distribution of an absorbing particles can be formed, such as how few below above, how middle few below above, to adapt to the user of different sexes, the position of such as, when masculinity and femininity uses discharge opeing is different, just by adjustment tongue component, the higher absorbing particles of density is formed in discharge opeing place, and in the position away from discharge opeing place, more low-density absorbing particles can be formed, while improving absorbent properties, can be flexible and changeable, more practical and hommization.
Equally, in the process of single absorbent cores volume fibre, continuously can adjust the pendulum angle of each tongue component 08 and 18 simultaneously, adjust the proportional amount of absorptive core thickness direction high-absorption resin particle, therefore on the thickness direction of absorptive core, also the density gradient distribution of an absorbing particles can be formed, such as make whole composite absorption core body 30 from skin-proximal layer to skin layer dorsad, present the Gradient distribution that grain density is ascending, liquid can be allowed to be absorbed more fast, also do not affect total absorbtivity simultaneously.
In addition, also the distribution situation of high-absorption resin particle 103 at each layer of structure can be adjusted by regulating the axis in high-absorption resin particle feed dissemination apparatus 07 and 17 between discharging gate and Ji Xianqiang center and radial distance, because the closer to the position of discharging gate, there is more super absorbent resin granule certainly.Shown in composition graphs 1, when axially adjusting, on the length direction of absorptive core, the distribution density that can form a super absorbent resin granule is poor; When radially adjusting, the distribution density that the width of absorptive core can be formed a super absorbent resin granule is poor.
First long-pending fine assembly drum 01 and the second long-pending fine assembly drum 11 surface are equipped with at least one mould 10 and 20, screen cloth 23 is provided with below mould, have die cavity 22 in the middle part of mould, the die cavity 22 on the described first long-pending fine assembly drum 01 and the die cavity 22 on the second long-pending fine assembly drum 11 have identical or different height.
See accompanying drawing 2a, 2b, long-pending fine drum surface has mould 10, mould 10 has the die cavity 22 that forms absorptive core, screen cloth 23 is fixed with below die cavity 22, supporter 24 is used for being fixed screen cloth 23, the mesh aperture of screen cloth 23 is less, only allows wind to pass through, and does not allow the material as super absorbent resin granule one class to pass through.Chamber, the both sides wall of die cavity 22 has certain height, the height depending on die cavity 22 of absorptive core molding thickness, and die cavity 22 is surroundings can be closed, also can be half-open, in addition, along on the length direction of die cavity 22 both sides, die cavity 22 is (namely two ends are wide, middle narrow) state in hourglass shape.
See accompanying drawing 3a, 3b, mould 20 has a die cavity 22 placing absorptive core, screen cloth 23 is fixed with below die cavity 22, supporter 24 is used for being fixed screen cloth 23, the mesh aperture of screen cloth 23 is less, only allow wind to pass through, and do not allow the material as super absorbent resin granule one class to pass through.Chamber, the both sides wall of die cavity 22 has certain height, the height depending on die cavity of absorptive core molding thickness, and die cavity 22 is surroundings can be closed, also can be half-open.Along on the length direction of die cavity 22 both sides, die cavity 22 is in vertical bar type state.
See accompanying drawing 3c, 3d, mould 20 has a die cavity 22 placing absorptive core, screen cloth 23 is fixed with below die cavity 22, supporter 24 is used for being fixed screen cloth 23, with accompanying drawing 2a unlike, along on the length direction of die cavity 22 both sides, the both sides of screen cloth 23 are provided with protruding rectangular: the length of first protruding rectangular 25 and second protruding rectangular 26, first protruding rectangular 25 and second protruding rectangular 26 is less than die cavity 22 length.First protruding rectangular 25 and second protruding rectangular 26 be smooth open curve shape, and first is protruding rectangular 25 parallel and be symmetrical in the second projection rectangular 26.First protruding rectangular 25 openings dorsad or the opening of subtend second protruding rectangular 26, first protruding rectangular 25 width can be identical or different from the width of the second projection rectangular 42, chamber, the height of projection≤die cavity 22 both sides wall height of first protruding rectangular 25 and second protruding rectangular 26.
Certainly, the shape and size of first protruding rectangular 25 and second protruding rectangular 26 also can change, and are not limited to the shape and size described in the present embodiment.Equally, protruding rectangular quantity also can change.
First long-pending fine drum 01 and the second long-pending fine drum 11 carry out independent demoulding formation, mould can be identical or different size, die cavity 22 has identical or different shape and size, therefore the different absorptive core of two-layer shape and size can be obtained, composite absorption core body 30 style of molding is also more abundant and diversified, meets the different market demands.
Continue by reference to the accompanying drawings shown in 1, this utility model absorptive core former completes the making of absorptive core by following moulding process:
Hygroscopicity fibre 102 is pulverized respectively by the first reducing mechanism unit 03 and the second reducing mechanism unit 13, discongest into the hygroscopicity fibre of single state, first reducing mechanism unit 03 and the second reducing mechanism unit 13 are made up of the roller of high speed rotating, the external peripheral surface of roller is provided with the blade composition arranged at a certain distance, gas channel is passed through by the single hygroscopicity fibre of discongesting, with the combined effect of the centrifugal force of roller, be admitted to each long-pending fine chamber, simultaneously with injects through high-absorption resin particle feed dissemination apparatus 07 and 17 amass fine chamber 02 and 12 high-absorption resin particle 103 mix fully, accumulated in by negative pressure of vacuum suction on the mould 10 and 20 of each long-pending fibre drum circumferential outer surface.
Lower floor's absorptive core 32 bottom surface after stripping forming with send the clad material 35 being coated with thermosol adhesive 104 and complete compound, through the first vacuum tank transporter 04 vac sorb and simultaneously level is carried forward, with intermediate materials 101 compoiste adhering after the first material glue spreading apparatus wherein a gluing, and horizontal compacting under the effect of the first belt presser unit 05, depart from the effect of the first vacuum tank transporter 04, be delivered to compacting again in the first embossing units 06 forward through conveyer belt continuation level.Be delivered to the second material glue spreading apparatus again, at the another side coating hot-melt adhesive binding agent 104 of intermediate materials 101, complete compoiste adhering with the bottom surface of the upper strata absorptive core 31 after stripping forming and fix.
Under the absorption conveying effect of the second vacuum tank transporter 14, the horizontal compacting of horizontal feed to the second belt presser unit 15, composite absorption core body 30 departs from the vac sorb effect of the second vacuum tank transporter 14, under conveyer belt effect, horizontal feed is to packing unit 21, clad material 35 is carried out packing, the upper surface of composite absorption core body 30 is wrapped by clad material 35, then deliver to the second embossing units 16 compacting, be delivered to subsequent processing, complete the molding of whole absorptive core.
See accompanying drawing 4a, 4b, 4c, composite absorption core body 30 comprises upper strata absorptive core 31 and lower floor's absorptive core 32, intermediate layer material 101 is had between upper strata absorptive core 31 and lower floor's absorptive core 32, the both sides up and down of intermediate materials 101 are all coated with thermosol adhesive, are connected and fixed respectively with upper strata absorptive core 31 and lower floor's absorptive core 32.Whole composite absorption core body 30 carries out doubling by clad 35 and is overmolding to and is integrated, the size of upper strata absorptive core 31 is less than the size of lower floor's absorptive core 32, in upper strata absorptive core 31, the bulk density of hygroscopicity fibre and Super Absorbent Polymer Particles is at 0.08---0.16 gram/cc, in lower floor's absorber 32, the bulk density of hygroscopicity fibre and Super Absorbent Polymer Particles is at 0.12---0.20 gram/cc, and this bulk density all increases progressively successively from top to bottom in upper strata absorptive core 31 and lower floor's absorptive core 32, thus form the density gradient distribution of absorptive core.Due to upper strata absorptive core 31 and lower floor's absorptive core 32 respectively by two independently, adjustable long-pending fibre drum, long-pending fine chamber and the independent molding of mould, and upper strata absorptive core 31 and lower floor's absorptive core 32 inject separately respective absorptive core, so it is relatively easy for forming the distribution of absorptive core density gradient respectively by high-absorption resin particle feed dissemination apparatus 17 and 07.
By reference to the accompanying drawings shown in 3a-3d, in the embodiment of Fig. 4 a, 4b, the size of upper strata absorptive core 31 is less than the size of lower floor's absorptive core 32, is because the width of the second long-pending fine drum 11 upper cavity 22 is less than the width of the first long-pending fine drum 01 upper cavity 22.The width of two long-pending fine drum upper cavities 22 can be equal or not etc., the width of the such as second long-pending fine drum 11 upper cavity 22 is not larger, to form not composite absorption core body 30 in specie.As shown in Figure 4 b, the size of upper strata absorptive core 31 and the measure-alike of lower floor's absorptive core 32.More preferably the size of upper strata absorptive core 31 is less than the size of lower floor's absorptive core 32, because upper strata absorptive core 31 more presses close to people side, less size can increase the comfortableness of laminating human body.
See accompanying drawing 4c, in lower floor's absorptive core 32, high-absorption resin particle distribution is many, and in upper strata absorptive core 31, high-absorption resin particle distribution is less; More preferably, from upper strata absorptive core 31 top layer to lower floor's absorptive core 32 bottom, high-absorption resin particle content increases progressively successively, thus define the Gradient distribution of high-absorption resin particle, this to promoting quick absorption of liquid, the re-absorption effect of diffusion and liquid is all useful.In the present embodiment, the 20-60%(total content that in upper strata absorptive core 31, Super Absorbent Polymer Particles accounts for whole upper strata absorptive core 31 weight comprises hygroscopicity fibre and Super Absorbent Polymer Particles); The 40-80%(total content that in lower floor's absorptive core 32, Super Absorbent Polymer Particles accounts for whole lower floor absorptive core 32 weight comprises hygroscopicity fibre and Super Absorbent Polymer Particles).
In addition, owing to being provided with intermediate layer material 101 between upper strata absorptive core 31 and lower floor's absorptive core 32, play " skeletal support effect " in whole composite absorption core body 30, existing absorptive core structural strength step-down can be solved, easily occur conglomeration, cracking, fault-layer-phenomenon.
See accompanying drawing 5a, 5b, the present embodiment, compared with accompanying drawing 4a, 4b, is divided into intermediate absorption core body 36, both sides absorptive core 33 and 34 unlike upper strata absorptive core 31.Have one section of hollow area in the middle of both sides absorptive core 33 and 34 and intermediate absorption core body 36, this hollow area is formed by first protruding rectangular 25 and second protruding rectangular 26, and hollow area does not have absorptive core material.When reality uses, upper strata absorptive core 31 more presses close to people side, and in the crotch of human body, whole composite absorption core body 30 can be bent, and forms two ends middle curved shape down upward.And the hollow area on upper strata absorptive core 31, contribute to composite absorption core body 30, the bending of even whole absorbent article, form the buckling curve of the wearer that more fits, be conducive to the comfort level that user promotes leg and crotch.In addition, compare and there is no hollow area, hollow area is had to contribute to absorption and the seepage velocity of accelerating liquid, body fluid being penetrated in absorbing particles more lower floor absorptive core 32 sooner, can avoiding because adding the slack-off unfavorable factor of whole composite absorption core body 30 rate of liquid aspiration that intermediate layer material 101 causes.
In such an embodiment, preferably lower floor's absorptive core 32 does not have hollow area, use of arranging in pairs or groups like this, avoids causing whole composite absorption core body 30 to occur the problem such as cracking, tomography, intensity reduction because of the having hollow area of upper strata absorptive core 31.
See accompanying drawing 6, the present embodiment compared with the composite absorption core in Fig. 4 a, 4b, its at the middle and upper levels absorptive core 31 from lower floor absorptive core 32, there is different thickness, preferably, as shown in this embodiment, upper strata absorptive core 31 thickness is less.If the absorbing particles density simultaneously in upper strata absorptive core 31 is less, then contributes to body fluid and absorb fast and go deep in lower floor's absorptive core 32, improve the absorbent properties of absorbent article.
See accompanying drawing 7, the present embodiment compared with the composite absorption core in Fig. 5 a, 5b, its at the middle and upper levels absorptive core 31 from lower floor absorptive core 32, there is different thickness, preferably, as shown in this embodiment, upper strata absorptive core 31 thickness is less.If the absorbing particles density simultaneously in upper strata absorptive core 31 is less, then contributes to body fluid and absorb fast and go deep in lower floor's absorptive core 32, improve the absorbent properties of absorbent article.
In addition, shown in composition graphs 3a-3d, those skilled in the art can be easy to, it is contemplated that in the die cavity 22 of the first long-pending fine drum 01, also be provided with corresponding protruding rectangular, to make also to produce hollow area in lower floor's absorptive core 32.Certainly, if also have hollow area in lower floor's absorptive core 32, preferably, on the position of its hollow area and upper strata absorptive core 31, stagger in the position of hollow area, as shown in Figure 8.In fact, the first long-pending fine drum 01 die cavity 22 and the rectangular quantity of the second long-pending fine drum 11 die cavity 22 projection, size, position, shape, can identical, complete difference or part identical.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (12)
1. an absorptive core former, it is characterized in that: comprise the first core forming device forming lower floor's absorptive core, the second core forming device and the conveyer device forming upper strata absorptive core, described first core forming device and the second core forming device set gradually on the throughput direction of described conveyer device
Intermediate materials bringing device, the first belt presser unit and the second material glue spreading apparatus are set between described first core forming device and the second core forming device, the continuous position being positioned at described first core forming device and the first belt presser unit below described conveyer belt arranges the first vacuum tank transporter
In the front of described intermediate materials bringing device, the first material glue spreading apparatus is set,
At the rear of the throughput direction of described second core forming device, second belt presser unit and packing unit are set, the continuous position being positioned at described second core forming device and the second belt presser unit below described conveyer belt arranges the second vacuum tank transporter.
2. absorptive core former according to claim 1, is characterized in that: between described first belt presser unit and the second material glue spreading apparatus, arrange the first embossing units.
3. absorptive core former according to claim 1, is characterized in that: at the rear of described packing unit, arrange the second embossing units.
4. absorptive core former according to claim 1, is characterized in that: described intermediate materials bringing device comprises several deflector rolls, and described deflector roll is used for intermediate materials to strain.
5. absorptive core former according to any one of claim 1 to 4, it is characterized in that: described first core forming device comprises the first reducing mechanism unit, the first long-pending fine chamber and the first long-pending fine assembly drum, described second core forming device comprises the second reducing mechanism unit, the second long-pending fine chamber and the second long-pending fine assembly drum, and the described first long-pending fine assembly drum and the second long-pending fine assembly drum are all arranged on above described conveyer device.
6. absorptive core former according to claim 5, is characterized in that: be provided with one to two tongue component in the described first long-pending fine chamber and the second long-pending fine intracavity, described tongue component is parallel to the axial direction of long-pending fine drum.
7. absorptive core former according to claim 6, is characterized in that: on the described first long-pending fine chamber and the second long-pending fine chamber, arrange particulate dispersion charging gear, the distance between described particulate dispersion charging gear and described tongue component can regulate.
8. absorptive core former according to claim 6, is characterized in that: the described first long-pending fine assembly drum and the second long-pending fine assembly drum surface are equipped with at least one mould, have die cavity in the middle part of described mould.
9. absorptive core former according to claim 8, is characterized in that: the height of the mould die cavity on the described first long-pending fine assembly drum is less than the height of the described second long-pending fine assembly drum upper cavity.
10. absorptive core former according to claim 8, it is characterized in that: it is rectangular that the described second middle part of amassing the die cavity of the mould on fine assembly drum is provided with several projections, the rectangular direction of described projection is consistent with the length direction of die cavity, and the rectangular height of described projection is less than or equal to the height of the upper cavity of the described second long-pending fine assembly drum.
11. absorptive core formers according to claim 8, it is characterized in that: each long-pending fibre drum has at least one mould along its circumferential outer surface, air draught district and blowing demoulding district are drawn together in described each long-pending fine bulge, are provided with at the circumferential outer surface of described each long-pending fibre drum the belt presser unit operated that to fit in air draught region with each long-pending fibre drum.
12. absorptive core formers according to claim 8, it is characterized in that: described first reducing mechanism unit and the second reducing mechanism unit form by the roller of high speed rotating, and the external peripheral surface of described roller is provided with the set of blades arranged at a certain distance.
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| CN201520333937.0U CN204766192U (en) | 2015-05-22 | 2015-05-22 | Absorb core former |
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| CN201520333937.0U CN204766192U (en) | 2015-05-22 | 2015-05-22 | Absorb core former |
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