阅读说明：本技术 一种超薄吸收芯成型装置 (Ultra-thin absorption core forming device ) 是由 张立 于 2019-10-11 设计创作，主要内容包括：本发明涉及一次性卫生用品领域,尤其涉及一种超薄吸收芯成型装置,机架及依流水线设于机架上的表层材料输入机构、凸辊、凹辊、高分子下料装置、底层材料输入机构、小光辊、大光辊,所述机架上设有用于对凹辊进行加热的加热装置,所述凹辊上设有复数个凹陷部,所述凸辊上设有复数个凸起部,各凸起部与各凹陷部通过啮合的方式分别咬合,相邻两凹陷部之间形成峰壁,相邻两凸起部之间形成谷口,各峰壁的上表面上设有热压柱,各热压柱远离凹辊的侧面与凹辊轴心的距离相同,当凸辊与凹辊配合时,各热压柱与谷口底部之间存有间隙,所述间隙小于表层材料的厚度。其实现了更加合理的结构,更优化的成型流程,能够实现更加可靠的热压粘合效果。(The invention relates to the field of disposable sanitary products, in particular to an ultrathin absorption core forming device, which comprises a frame, a surface layer material input mechanism, a convex roller, a concave roller, a macromolecular blanking device, a bottom layer material input mechanism, a small smooth roller and a large smooth roller which are arranged on the frame according to a production line, the frame is provided with a heating device for heating the concave roller, the concave roller is provided with a plurality of concave parts, the convex roller is provided with a plurality of convex parts, each convex part is respectively meshed with each concave part in a meshing way, a peak wall is formed between two adjacent concave parts, a valley is formed between two adjacent convex parts, the upper surface of each peak wall is provided with a hot pressing column, the side surface of each hot pressing column far away from the concave roller has the same distance with the axis of the concave roller, when the male roller is matched with the female roller, a gap exists between each hot pressing column and the bottom of the valley opening, and the gap is smaller than the thickness of the surface layer material. The hot-press bonding device has the advantages that a more reasonable structure is realized, a more optimized forming process is realized, and a more reliable hot-press bonding effect can be realized.)

1. An ultra-thin absorption core forming device which is characterized in that: a frame, a surface layer material input mechanism, a convex roller, a concave roller, a macromolecule blanking device for adding macromolecules into the concave roller, a bottom layer material input mechanism, a small smooth roller for slightly rolling the material, a large smooth roller for secondarily rolling the material, the frame is provided with a heating device for heating the concave roller, the concave roller is provided with a plurality of concave parts, the convex roller is provided with a plurality of convex parts, each convex part is respectively meshed with each concave part in a meshing way, a peak wall is formed between two adjacent concave parts, a valley is formed between two adjacent convex parts, the upper surface of each peak wall is provided with a hot pressing column, the side surface of each hot pressing column far away from the concave roller has the same distance with the axis of the concave roller, when the male roller is matched with the female roller, a gap exists between each hot pressing column and the bottom of the valley opening, and the gap is smaller than the thickness of the surface layer material.

2. The ultra-thin absorbent core forming apparatus of claim 1, wherein: the frame is provided with a material spreading device used for preventing polymers from scattering between the polymer blanking device and the concave roller, and a cavity connected between a blanking port of the polymer blanking device and the concave part of the concave roller is arranged in the material spreading device.

3. The ultra-thin absorbent core forming apparatus of claim 2, wherein: the concave parts form a row along the axial direction, the concave parts in each row are uniformly distributed around the axial center, and when the concave roller rotates, the maximum coverage range of the cavity is one row of concave parts.

4. The ultra-thin absorbent core forming apparatus of claim 3, wherein: the cavity is internally provided with clapboards for spacing, and each clapboard corresponds to each peak wall.

5. The ultra-thin absorbent core forming apparatus of claim 2, wherein: and protection rings are arranged on two axial sides of the concave roller, the protruding height of each protection ring is greater than that of the hot pressing column, and the difference value is smaller than 1 mm.

6. The ultra-thin absorbent core forming apparatus of claim 5, wherein: the lower end of the material spreader leans against the protection ring, and the lower end of the material spreader is not in contact with the hot pressing column.

7. An ultra-thin absorbent core forming apparatus as claimed in any one of claims 1 to 6, wherein: and the rack is provided with a convex roller adjusting device for realizing the sliding adjustment of the convex roller along the connecting line of the axes of the convex roller and the concave roller.

8. An ultra-thin absorbent core forming apparatus as claimed in any one of claims 1 to 6, wherein: and the rack is provided with a small smooth roller adjusting device for realizing the sliding adjustment of the small smooth roller along the connecting line of the small smooth roller and the axis of the concave roller.

9. An ultra-thin absorbent core forming apparatus as claimed in any one of claims 1 to 6, wherein: and the rack is provided with a large smooth roller adjusting device for realizing the sliding adjustment of the large smooth roller along the connecting line of the large smooth roller and the concave roller axis.

10. An ultra-thin absorbent core forming apparatus as claimed in any one of claims 1 to 6, wherein: the rear end that lies in the assembly line in the frame still is equipped with and is used for carrying out the ultrasonic welding device that bonds to the material, be equipped with a ring welding blank portion on the concave roll, locate on the convex roll and support the portion of supporting with the welding of welding blank portion complex, welding blank portion and welding support the interval between the portion of supporting be greater than the size in clearance and be less than the interval between peak wall and the valley mouth, ultrasonic welding is connected and is arranged welding blank portion department in and carries out ultrasonic welding.

Technical Field

The invention relates to the field of disposable hygienic products, in particular to an ultrathin absorption core forming device.

Background

The applicant has found that the method has the following advantages in Chinese patent numbers: CN201910149471.1 discloses an absorb core forming device, compression fittings locates the inside of support frame, the upper portion of support frame is passed through bolt and hopper support frame fixed connection down, the upper end and the hopper fixed connection down of hopper support frame, compression fittings includes protruding roller, concave roller, hot pressing roller, oil heat pipe, output roller, supersonic generator, the left part and the concave roller laminating of protruding roller, the left side of concave roller is located to the hot pressing roller, the inside of concave roller, hot pressing roller is located to the oil heat pipe, and this absorb core forming device has improved the problem that the macromolecular material is unordered fixed with the non-woven fabrics in the course of working through setting up protruding roller and concave roller, can lead to absorbing the effect decline, can make the even distribution of macromolecular material on the non-woven fabrics. Which discloses a molding apparatus for molding an ultra-thin absorbent core.

On the basis of continuous research and development on ultrathin absorbent core forming devices, the applicant further improves the structure of the ultrathin absorbent core forming devices, changes the connection of the structure and enables the structure to be more reasonable.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides an ultra-thin absorbent core forming device, which realizes a more reasonable structure, a more optimized forming process, and a more reliable thermocompression bonding effect.

In order to achieve the purpose, the invention adopts the following technical scheme: a molding device for ultrathin absorption cores comprises a frame, a surface layer material input mechanism, a convex roller, a concave roller, a macromolecule blanking device for adding macromolecules into the concave roller, a bottom layer material input mechanism, a small smooth roller for slightly rolling materials and a large smooth roller for secondarily rolling materials, wherein the surface layer material input mechanism, the convex roller and the concave roller are arranged on the frame according to a production line, the macromolecule blanking device is used for adding macromolecules into the concave roller, the bottom layer material input mechanism, the small smooth roller for slightly rolling materials and the large smooth roller for secondarily rolling materials are arranged on the frame, a heating device for heating the concave roller is arranged on the frame, a plurality of concave parts are arranged on the concave roller, a plurality of convex parts are arranged on the convex roller, each convex part is respectively meshed with each concave part in a meshing mode, a peak wall is formed between two adjacent concave parts, a valley mouth is formed between two adjacent convex parts, a hot pressing column is arranged on the upper surface of each peak wall, the, the gap is less than the thickness of the skin material.

Furthermore, a material spreading device used for preventing polymers from scattering is arranged between the polymer blanking device and the concave roller on the rack, and a cavity connected between a blanking port of the polymer blanking device and the concave part of the concave roller is arranged in the material spreading device.

Furthermore, the concave parts form a row along the axial direction, the concave parts in each row are uniformly distributed around the axial center, and when the concave roller rotates, the maximum coverage range of the cavity is one row of concave parts.

Furthermore, partition plates for spacing are arranged in the cavity, and each partition plate corresponds to each peak wall.

Furthermore, protection rings are arranged on two axial sides of the concave roller, the protruding height of each protection ring is larger than that of the corresponding hot pressing column, and the difference value is smaller than 1 mm.

Furthermore, the lower end of the material spreading device is abutted against the protection ring, and the lower end of the material spreading device is not contacted with the hot pressing column.

Furthermore, a convex roller adjusting device used for realizing sliding adjustment of the convex roller along a connecting line of the axes of the convex roller and the concave roller is arranged on the rack.

Furthermore, a small smooth roller adjusting device used for realizing sliding adjustment of the small smooth roller along a connecting line of the small smooth roller and the axis of the concave roller is arranged on the rack.

Furthermore, a large smooth roller adjusting device used for realizing sliding adjustment of the large smooth roller along a connecting line of the axes of the large smooth roller and the concave roller is arranged on the rack.

Further, the rear end that lies in the assembly line in the frame still is equipped with and is used for carrying out the ultrasonic welding device that bonds to the material, be equipped with a ring welding blank portion on the concave roll, locate on the convex roll and support and lean on the portion with the welding of welding blank portion complex welding, welding blank portion and welding support and lean on the interval between the portion to be greater than the size in clearance and be less than the interval between peak wall and the valley mouth, ultrasonic welding device carries out ultrasonic welding in welding blank portion department.

By adopting the technical scheme, the invention has the beneficial effects that:

1. this ultra-thin absorption core forming device is through the position adjustment to the mechanism, realize more reasonable work operation order, also can realize the laminating of formation depressed part and bellying between surface course material and the bottom material and be connected, again because the setting of hot pressing post, can with the bump of protruding roller cooperation pressfitting play around the depressed part in advance, also make the surface course material more laminate in hot pressing post, thereby realize when with little smooth roll, big smooth roll cooperation, the surface course material is more steady with the pressurized of bottom material on the bump position, also can prevent that the bonding performance between other surface course materials outside the bump and the bottom material is littleer, the bump that hot pressing post formed here of course is not in order to guarantee the inseparable firm bonding of surface course material and bottom material, it as long as can prevent that macromolecular material from running out the depressed part after absorbing water the inflation can. Therefore, the effect of the hot-pressing column is to realize that the surface layer material has a micro-deformation, namely, the micro-deformation of the salient point position, so that after the surface layer material and the bottom layer material are compounded, the micro-deformation can achieve the purpose of realizing point bonding of the surface layer material and the bottom layer material, and the surface layer material and the bottom layer material are prevented from being bonded. It is known that the softness of the absorbent core affects the comfort of the wearer, and if the sides are bonded, the softness is necessarily reduced, whereas point bonding can greatly increase the softness, and even after the spacing of the embossments is set, the softness is not substantially affected.

2. The arrangement of the material spreading device not only reduces the scattering and waste of macromolecules, but also improves the accuracy of macromolecule blanking. Because the size of each concave part is less, for example 5 x 5mm, the polymer that it held is limited at this time, therefore two are also less when unloading, if the polymer is after scattering, not only can produce the waste, also can greatly influence the accuracy, so will make the uniformity of the absorption efficiency of whole absorbent core be relatively poor, make the absorbent core after absorbing body fluid appear the state of height unevenness to reduce comfort.

3. The maximum coverage range of the cavity is a row of concave parts, so that the scattering of macromolecules can be greatly reduced, the macromolecule blanking is limited in a row, and in the blanking process, the cavity is in a strip shape and is directly communicated with the concave parts, so that a better blanking state can be realized.

4. The partition plate is arranged, so that the blanking of the polymer corresponds to the sunken part, and the blanking accuracy is optimal.

5. The protection ring can reduce the possibility of collision of the hot-pressing column, so that the longer service life and the higher stability are realized.

6. The matching of the material spreader, the protection ring and the hot pressing column can realize the best blanking state.

7. The convex roller adjusting device or the small smooth roller adjusting device or the large smooth roller adjusting device are used for achieving the purpose of wider applicability, can be adjusted according to the thickness of materials, and can be adjusted according to the force of points to be pressed.

8. Welding blank portion, welding support to the setting of portion, mainly be in order to make ultrasonic bonding have one can realize better welding environment, avoid welding in depressed part department because depressed part department is used for adding the polymer, if here welding, then the weak state can appear. In order to ensure the overall softness during hot pressing, the hot pressing is not carried out in a tight hot pressing manner, so that in extreme conditions, such as severe movement, high temperature or high cold environment, the risk of delamination exists, and in order to avoid the risk, two or more welding points are arranged at intervals in the length direction of the absorption core through ultrasonic waves, and the situation is also carried out in the width direction.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is a schematic view of the male and female rollers mating configuration;

FIG. 5 is a schematic view of the engagement of the protrusion and the recess;

FIG. 6 is a schematic of the structure of the surface of a concave roller;

FIG. 7 is a schematic cross-sectional view of the spreader in cooperation with the female roller;

FIG. 8 is a cross-sectional structural view in the lateral direction of FIG. 7;

fig. 9 is a schematic view of the structure of the concave roller provided with a protection ring and the spreader.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 9, in this embodiment, an ultra-thin absorbent core forming device is provided, which includes a frame, a surface layer material input mechanism 11, a convex roller 2, a concave roller 3, a polymer blanking device 4 for adding a polymer into the concave roller 3, a bottom layer material input mechanism 12, a small smooth roller 5 for slightly rolling a material, a large smooth roller 6 for secondarily rolling the material, and a cleaning wheel 7 for cleaning the concave roller, which are disposed on the frame 1, wherein a heating device (not shown) for heating the concave roller 3 is disposed on the frame 1, and the heating device is an electric heating device or an oil heating device, which is a known technology in the art and will not be described herein. The concave roller 3 is provided with a plurality of concave portions 31, the convex roller 2 is provided with a plurality of convex portions 21, each convex portion 21 is engaged with each concave portion 31 in a meshing manner, as shown in fig. 5, the convex portions and the concave portions are in a planar state, and actually, the convex portions and the concave portions are respectively arranged on a circular surface. The peak wall 32 is formed between two adjacent concave portions 31, the valley 22 is formed between two adjacent convex portions 21, the upper surface of each peak wall 32 is provided with a hot pressing column 33, the distance between the side surface of each hot pressing column 33 far away from the concave roller 3 and the axis of the concave roller 3 is the same, that is, in the state shown in fig. 5, the upper surface of each hot pressing column 33 is located on the same horizontal plane, when the convex roller 2 is matched with the concave roller 3, a gap C exists between each hot pressing column 33 and the bottom of the valley 22, the gap C is smaller than the thickness of the surface layer material, the thickness is adjusted according to the thickness of the material, if the thickness of the material is 0.5mm, the gap can be set to a value smaller than 0.5mm, if the gap is set to 0.4 mm.

The surface material input mechanism and the bottom material input mechanism are well known and are not described herein; the small smooth roller, the large smooth roller and the cleaning wheel are all known and are described in detail herein; the heating devices are well known and will not be described herein. The convex roller, the small smooth roller and the large smooth roller are also provided with devices for heating.

The frame 1 is further provided with an ultrasonic welding device 8 at the rear end of the production line for bonding materials, and the ultrasonic welding device 8 is well known in the art and will not be described in detail herein. Be equipped with a ring welding blank portion 34 on the concave roll 3, locate on the convex roll 2 with welding blank portion 34 complex welding support portion 23, welding blank portion 34 and the welding support portion 23 between the interval be greater than clearance C's size and be less than the interval between peak wall and the valley mouth, ultrasonic welding device 8 carries out ultrasonic welding in welding blank portion 34 department.

And the rack 1 is provided with a convex roller adjusting device 91 for realizing the sliding adjustment of the convex roller 2 along the connecting line of the axes of the convex roller 2 and the concave roller 3. And a small smooth roller adjusting device 92 for realizing the sliding adjustment of the small smooth roller 5 along the connecting line of the small smooth roller 5 and the axis of the concave roller 3 is arranged on the frame 1. And a large smooth roller adjusting device 93 for realizing the sliding adjustment of the large smooth roller 6 along the connecting line of the large smooth roller 6 and the axis of the concave roller 3 is arranged on the frame 1. The frame 1 is provided with a cleaning wheel adjusting device 94 for realizing the sliding adjustment of the cleaning wheel 7 along the connecting line of the cleaning wheel 7 and the axis of the concave roller 3.

The convex roller adjusting device 91, the small smooth roller adjusting device 92, the large smooth roller adjusting device 93 and the cleaning wheel adjusting device 94 are all known in the art, and are not described herein.

A material spreading device 41 for preventing polymers from scattering is arranged between the polymer blanking device 4 and the concave roller 3 on the frame 1, and a cavity 411 connected between a blanking port of the polymer blanking device 4 and the concave part 31 of the concave roller 3 is arranged in the material spreading device 41. The concave parts 31 are formed in a row shape along the axial direction, the concave parts 31 in each row are uniformly distributed around the axial center, and when the concave roller 3 rotates, the maximum coverage range of the cavity 411 is one row of the concave parts 31. Partitions 412 for spacing are arranged in the cavity 411, and each partition 412 corresponds to each peak wall 32.

Referring to fig. 9 again, the protection rings 35 are provided on both sides of the concave roller 3 in the axial direction, and the protrusion height of the protection ring 35 is greater than that of the hot pressing column 33 by a difference of less than 1 mm. The lower end of the spreader 41 abuts against the protection ring, and the lower end of the spreader 41 is not in contact with the hot-pressing column 33.

By adopting the technical scheme, the invention has the beneficial effects that:

1. this ultra-thin absorption core forming device is through the position adjustment to the mechanism, realize more reasonable work operation order, also can realize the laminating of formation depressed part and bellying between surface course material and the bottom material and be connected, again because the setting of hot pressing post, can with the bump of protruding roller cooperation pressfitting play around the depressed part in advance, also make the surface course material more laminate in hot pressing post, thereby realize when with little smooth roll, big smooth roll cooperation, the surface course material is more steady with the pressurized of bottom material on the bump position, also can prevent that the bonding performance between other surface course materials outside the bump and the bottom material is littleer, the bump that hot pressing post formed here of course is not in order to guarantee the inseparable firm bonding of surface course material and bottom material, it as long as can prevent that macromolecular material from running out the depressed part after absorbing water the inflation can. Therefore, the effect of the hot-pressing column is to realize that the surface layer material has a micro-deformation, namely, the micro-deformation of the salient point position, so that after the surface layer material and the bottom layer material are compounded, the micro-deformation can achieve the purpose of realizing point bonding of the surface layer material and the bottom layer material, and the surface layer material and the bottom layer material are prevented from being bonded. It is known that the softness of the absorbent core affects the comfort of the wearer, and if the sides are bonded, the softness is necessarily reduced, whereas point bonding can greatly increase the softness, and even after the spacing of the embossments is set, the softness is not substantially affected.

2. The arrangement of the material spreading device not only reduces the scattering and waste of macromolecules, but also improves the accuracy of macromolecule blanking. Because the size of each concave part is less, for example 5 x 5mm, the polymer that it held is limited at this time, therefore two are also less when unloading, if the polymer is after scattering, not only can produce the waste, also can greatly influence the accuracy, so will make the uniformity of the absorption efficiency of whole absorbent core be relatively poor, make the absorbent core after absorbing body fluid appear the state of height unevenness to reduce comfort.

3. The maximum coverage range of the cavity is a row of concave parts, so that the scattering of macromolecules can be greatly reduced, the macromolecule blanking is limited in a row, and in the blanking process, the cavity is in a strip shape and is directly communicated with the concave parts, so that a better blanking state can be realized.

4. The partition plate is arranged, so that the blanking of the polymer corresponds to the sunken part, and the blanking accuracy is optimal.

5. The protection ring can reduce the possibility of collision of the hot-pressing column, so that the longer service life and the higher stability are realized.

6. The matching of the material spreader, the protection ring and the hot pressing column can realize the best blanking state.

7. The convex roller adjusting device or the small smooth roller adjusting device or the large smooth roller adjusting device are used for achieving the purpose of wider applicability, can be adjusted according to the thickness of materials, and can be adjusted according to the force of points to be pressed.

8. Welding blank portion, welding support to the setting of portion, mainly be in order to make ultrasonic bonding have one can realize better welding environment, avoid welding in depressed part department because depressed part department is used for adding the polymer, if here welding, then the weak state can appear. In order to ensure the overall softness during hot pressing, the hot pressing is not carried out in a tight hot pressing manner, so that in extreme conditions, such as severe movement, high temperature or high cold environment, the risk of delamination exists, and in order to avoid the risk, two or more welding points are arranged at intervals in the length direction of the absorption core through ultrasonic waves, and the situation is also carried out in the width direction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.