阅读说明：本技术 一种吸收芯体的成型方法及设备 (Forming method and equipment of absorption core body ) 是由 黄隆标 于 2021-07-26 设计创作，主要内容包括：本发明公开一种吸收芯体的成型方法及设备,其方法是在成型鼓的外周面上设置成型区域和脱模区域,安装于成型鼓上的各成型组件相对于成型鼓的芯轴进行独立转动；成型组件进入成型区域后,相邻的成型组件之间紧密相接,进行吸收芯体成型；成型组件退出成型区域后,成型组件加速转动,相邻的成型组件之间分离,并进行吸收芯体的脱模和转移。其设备包括成型鼓和安装于成型鼓上的多个成型组件,各成型组件相对于成型鼓的芯轴进行独立转动；成型鼓的外周面上设有成型区域和脱模区域,各成型组件在成型区域中的转速小于在脱模区域中的转速。本发明可有效改善吸收芯体成型密度及高分子材料含量的均匀性,进而提高产品的成型质量。(The invention discloses a forming method and equipment of an absorption core body, wherein the method is that a forming area and a demoulding area are arranged on the peripheral surface of a forming drum, and each forming component arranged on the forming drum rotates independently relative to a mandrel of the forming drum; after the molding assemblies enter the molding area, the adjacent molding assemblies are tightly connected, and the absorption core body is molded; after the molding assemblies exit the molding area, the molding assemblies rotate at an accelerated speed, adjacent molding assemblies are separated, and demolding and transferring of the absorbent core are performed. The equipment comprises a forming drum and a plurality of forming components arranged on the forming drum, wherein each forming component independently rotates relative to a mandrel of the forming drum; the outer circumferential surface of the forming drum is provided with a forming area and a demoulding area, and the rotating speed of each forming assembly in the forming area is less than that in the demoulding area. The invention can effectively improve the molding density of the absorption core body and the uniformity of the content of the high polymer material, thereby improving the molding quality of the product.)

1. A forming method of an absorption core body is characterized in that a forming area and a demoulding area are arranged on the peripheral surface of a forming drum, and each forming assembly arranged on the forming drum rotates independently relative to a core shaft of the forming drum; after the molding assemblies enter the molding area, the adjacent molding assemblies are tightly connected, and the absorption core body is molded; after the molding assemblies exit the molding area, the molding assemblies rotate at an accelerated speed, adjacent molding assemblies are separated, and demolding and transferring of the absorbent core are performed.

2. The method of forming an absorbent core according to claim 1, wherein the absorbent core is an intermittent absorbent core as an upper layer of a single-layer absorbent core or a double-layer absorbent core.

3. A method of forming an absorbent core according to claim 1 wherein in the forming zone the speed of rotation of the forming assembly is equal to the speed of rotation of the mandrel of the forming drum; in the demolding region, the rotational speed of the molding assembly is greater than the rotational speed of the mandrel of the molding drum.

4. A method of forming an absorbent core according to claim 1 wherein the building drum is further provided with a transition zone on its peripheral surface, the building zone, the release zone and the transition zone being arranged in sequence in the direction of rotation of the building drum, and wherein in the transition zone the rotational speed of the building element is gradually reduced to correspond to the rotational speed of the building element in the building zone.

5. The forming equipment for the absorbent core is characterized by comprising a forming drum and a plurality of forming components, wherein the forming components are distributed along the circumferential direction of the forming drum and are arranged on the forming drum, and the forming components rotate independently relative to a mandrel of the forming drum; the peripheral surface of the forming drum is provided with a forming area and a demoulding area, the rotating speed of each forming assembly in the forming area is less than that in the demoulding area, the forming assemblies in the forming area are in a close connection state, and the forming assemblies in the demoulding area are in a separated state.

6. The apparatus for molding an absorbent core as defined in claim 5, wherein a fluff collecting chamber is provided in the molding drum outside the molding zone, the fluff collecting chamber is further connected to a defibrator for feeding fibers and a feeding mechanism for feeding polymer materials, and an outlet of the fluff collecting chamber covers the molding zone.

7. The apparatus for molding an absorbent core as claimed in claim 5, wherein a transfer drum is provided in the molding drum outside the mold release region, and an outer peripheral surface of the transfer drum is in contact with an outer peripheral surface of the molding drum and forms a transfer passage for the absorbent core.

8. The apparatus for molding absorbent cores according to claim 5, wherein the molding assembly comprises a molding bed, an adsorption chamber and a support member, the molding bed covers the adsorption chamber, the support member is disposed at the bottom of the adsorption chamber, the support member has a transition shaft seat at the lower end, the transition shaft seat is coaxially disposed at the periphery of the core shaft of the molding drum, the transition shaft seat is externally connected with the driving motor, and the molding bed is embedded on the periphery of the molding drum.

9. The apparatus of claim 8, wherein the plurality of forming assemblies each have a plurality of transition axle seats mounted on the outer circumference of the mandrel of the forming drum in a layer-by-layer manner, and the transition axle seats are connected to the mandrel or adjacent two transition axle seats by bearings, and each transition axle seat is externally connected to a driving motor by a group of power transmission assemblies.

10. Apparatus for forming an absorbent core according to claim 8 wherein the forming drum is provided with air distribution means and the suction chamber of the forming assembly into the forming zone is connected to the air distribution means to provide a negative pressure.

Technical Field

The invention relates to the technical field of manufacturing of disposable sanitary products, in particular to a method and equipment for forming an absorption core body.

Background

As known disposable absorbent products such as adult diapers, baby diapers and the like have been widely used in society, the demand for adult diaper (adult incontinence) products has further increased with the increasing aging degree of the population structure. In the disposable sanitary product, the core structure is the absorbent core, i.e. the forming quality of the absorbent core has the greatest influence on the performance of the product. The forming method currently in common use for absorbent cores is basically carried out as follows:

taking an adult diaper as an example, in order to improve the absorption performance, as shown in fig. 1 or fig. 2, the absorption core body is generally composed of an upper layer core body and a lower layer core body, in the production process of the device, the lower layer core body 1 is formed by adopting a continuous die cavity, the upper layer core body 2 is formed by adopting an intermittent die cavity, and the upper layer core body and the lower layer core body are respectively formed and then are laminated together according to the same pitch to form the whole body of the absorption core body.

In the process of forming the absorbent core, the cavity 3 of the forming die is continuous (as shown in fig. 3) for the formation of the lower core, the fibers and the polymer material are fed in a continuous conveying manner, negative pressure is communicated on the circumferential surface of the forming area of the forming drum, the whole continuous area can be simultaneously adsorbed, and the fibers and the polymer material can be relatively uniformly aggregated and integrated.

For the molding of the lower core, the fiber and polymer material are fed in a continuous conveying manner, but on the molding drum, the molding cavities 3 for molding in two adjacent molding dies are not continuous (as shown in fig. 4), so that in the molding process, the negative pressure adsorption area on the circumferential surface of the molding area is always changed along with the rotation of the drum body, in this case, the fiber and polymer material cannot be uniformly aggregated into a mold, but excessive aggregation occurs at the positions of two ends of each molding cavity, and the molding effect is finally affected, that is, as shown in fig. 5, when the molding cavities of the molding dies are discontinuous, the mixture of the fiber and polymer material in the discontinuous area will be aggregated towards the ends of two adjacent molding cavities (as shown by arrows in fig. 5), taking a diaper as an example, in the molding process, the spacing between the molding cavities in the adjacent molding dies of the upper core is not less than 200mm, therefore, a severe end aggregation phenomenon occurs during molding, as shown by arrows in fig. 5, the fibers and the polymer materials in the spacing region are pulled by the air flows of the two adjacent mold cavities and aggregated along the nearest region (i.e., the end of the mold cavity), so that the molding density and the polymer material content at the end of the mold cavity are higher than those in other regions, and the molded absorbent core will affect the use effect of the product.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a forming method of an absorption core, which is suitable for forming the absorption core of a discontinuous forming tire membrane, can effectively improve the forming density of the absorption core and the uniformity of the content of a high polymer material, and further improves the forming quality of a product.

Another object of the present invention is to provide an absorbent core molding apparatus applied to the above molding method.

The technical scheme of the invention is as follows: a forming method of an absorption core body comprises the following specific steps: the method comprises the following steps that a forming area and a demolding area are arranged on the peripheral surface of a forming drum, and each forming assembly arranged on the forming drum independently rotates relative to a mandrel of the forming drum; after the molding assemblies enter the molding area, the adjacent molding assemblies are tightly connected, and the absorption core body is molded; after the molding assemblies exit the molding area, the molding assemblies rotate at an accelerated speed, adjacent molding assemblies are separated, and demolding and transferring of the absorbent core are performed.

The absorption core is a discontinuous absorption core and is used as a single-layer absorption core or an upper-layer core of a double-layer absorption core. The absorption core body formed by the forming method can be independently applied to subsequent product processing as a single-layer absorption core body according to the actual requirements of different types of disposable sanitary products, and can also be used as an upper-layer core body of a double-layer absorption core body to be applied to subsequent product processing after being compounded with a lower-layer core body to form an absorption core body whole.

In the molding area, the rotating speed of the molding assembly is equal to that of the core shaft of the molding drum; in the demolding region, the rotational speed of each molding assembly is greater than the rotational speed of the mandrel of the molding drum.

The peripheral surface of the forming drum is also provided with a transition area, the forming area, the demoulding area and the transition area are sequentially arranged along the rotation direction of the forming drum, and in the transition area, the rotating speed of the forming assembly is gradually reduced to be consistent with the rotating speed of the forming assembly in the forming area.

The forming equipment for the absorption core body can be used for realizing the forming method, and comprises a forming drum and a plurality of forming assemblies, wherein the forming assemblies are distributed along the circumferential direction of the forming drum and are arranged on the forming drum, and the forming assemblies independently rotate relative to a mandrel of the forming drum; the peripheral surface of the forming drum is provided with a forming area and a demoulding area, the rotating speed of each forming assembly in the forming area is less than that in the demoulding area, the forming assemblies in the forming area are in a close connection state, and the forming assemblies in the demoulding area are in a separated state. Wherein each molding unit performs the molding of the absorbent core in the molding area, and the demolding and transferring of the absorbent core in the demolding area.

Furthermore, a transition area can be further arranged on the peripheral surface of the forming drum, the forming area, the demolding area and the transition area are sequentially arranged along the rotation direction of the forming drum, and in the transition area, the rotation speed of the forming assembly is gradually reduced from the rotation speed consistent with that of the forming assembly in the demolding area to the rotation speed consistent with that of the forming assembly in the forming area; at the same time, the distance between adjacent molding assemblies also gradually decreases. The transition area can avoid the phenomena of collision and the like between all parts caused by the rapid change of the rotating speed of the forming assembly, and further improve the stability of the forming equipment.

In the forming drum, a fluff collecting bin is arranged on the outer side of a forming area, a defibrator for throwing fibers and a feeding mechanism for throwing high polymer materials are connected to the fluff collecting bin, and an outlet of the fluff collecting bin covers the forming area. The fiber separating machine is mainly used for throwing fiber materials, the feeding mechanism is mainly used for throwing high polymer materials, and the fiber materials and the high polymer materials are mixed in the down collecting bin and gradually fall into tire membranes of all forming assemblies in a forming area under the negative pressure action of the forming area in the forming drum to form the absorbing core.

In the forming drum, a transfer drum is arranged outside the demoulding area, and the peripheral surface of the transfer drum is connected with the peripheral surface of the forming drum to form a transfer channel for absorbing the core body. When the molding assembly takes the molded absorbent core body into a demolding area, the absorbent core body is gradually released from a tire membrane of the molding assembly under the action of the transfer drum and transferred into a subsequent process by the transfer drum; the principle of demolding and transferring by using the transfer drum is the same as that of a transfer mechanism commonly used in a conventional absorbent core body molding device.

The molding assembly comprises a tire membrane, an adsorption chamber and a supporting component, the tire membrane covers the adsorption chamber, the supporting component is arranged at the bottom of the adsorption chamber, a transition shaft seat is arranged at the lower end of the supporting component, the transition shaft seat is coaxially arranged on the periphery of a mandrel of the molding drum, the transition shaft seat is externally connected with a driving motor, and the tire membrane is embedded on the peripheral surface of the molding drum. In the structure, each forming assembly is independently connected with one driving motor, and the rotating speed of each corresponding forming assembly is controlled by each driving motor through a corresponding transition shaft seat, so that the rotating speed of each forming assembly can be independently controlled or adjusted, and interference with the rotating speed of the forming drum is avoided.

Among the multiple forming assemblies, the transition shaft seats in each forming assembly are installed on the periphery of the mandrel of the forming drum layer by layer, the transition shaft seats are connected with the mandrel or two adjacent transition shaft seats through bearings, and each transition shaft seat is externally connected with a driving motor through a group of power transmission assemblies.

And an air distribution device is arranged in the forming drum, and an adsorption chamber in the forming assembly entering the forming area is communicated with the air distribution device to form negative pressure.

When the forming method and the forming device of the absorption core are applied, the principle is as follows: the rotation speed change of each forming assembly on the forming drum relative to the mandrel of the forming drum is utilized to ensure that the forming assemblies can form a continuous state of mutual close together and a discontinuous state of mutual separation; in the molding area of the molding drum, the molding assemblies are close to each other and tightly connected, so that the distance between the tire membranes of two adjacent molding assemblies reaches a preset minimum value, and the molding effect of the absorption core body is close to the molding effect of the molding drum in a continuous state of the mold cavity; after forming, the forming components gradually enter a demoulding area, adjacent forming components are gradually separated before reaching the joint of the transfer drum and the forming drum, when the joint of the transfer drum and the forming drum is reached, the distance between the adjacent forming components reaches a preset maximum value, the absorption core is demoulded and transferred under the action of the transfer drum, and if the formed absorption core is used as an upper layer core of the double-layer absorption core, the absorption core and a lower layer core of the absorption core are compounded to form the whole body of the absorption core. Therefore, the phenomenon that fibers and high polymer materials are gathered at the end part of the cavity due to uneven air flow in the forming process of the absorbent core body is improved. Wherein, the minimum and the maximum of distance between the fetal membranes of two adjacent shaping subassemblies can be set or adjusted according to the actual demand of different disposable hygienic products and the specific distribution condition of each part of the shaping subassemblies.

Compared with the prior art, the invention has the following beneficial effects:

the forming method and the forming equipment of the absorption core are suitable for forming the absorption core of the discontinuous forming tire membrane, namely discontinuous absorption core forming, can effectively improve the forming density of the absorption core and the uniformity of the content of high polymer materials, avoid the phenomenon that fibers and high polymer materials are gathered at the end part of the absorption core, and further improve the forming quality of products; meanwhile, the formed absorption core body can be independently applied to subsequent product processing as a single-layer absorption core body, can also be used as an upper-layer core body of a double-layer absorption core body, is combined with a lower-layer core body to form an absorption core body, and is then applied to subsequent product processing, and the application range is wide.

In the forming equipment of the absorption core body, the surface of a forming drum is divided into different functional areas, and the continuous state that the forming assemblies are close to each other is formed between the forming assemblies when the absorption core body is formed by utilizing the rotating speed change of the forming assemblies in the different areas on the forming drum relative to a core shaft of the forming drum, so that the forming effect of the forming assemblies is as close as possible to the forming effect of the absorption core body in the continuous state of a mold cavity, and the forming uniformity of the absorption core body is changed; when the absorber is demoulded, a mutually separated discontinuous state is formed, and flexible demould is realized. For the production line of disposable hygienic products, the forming equipment of the absorption core body is low in modification cost and low in equipment maintenance difficulty, but the problems of uneven forming density and high polymer material content of the absorption core body in the prior art can be solved well, the quality of products and the use experience of users are effectively improved, and the market competitiveness of the products is improved.

Drawings

Fig. 1 is a schematic structural view of an absorbent core of an adult diaper.

Fig. 2 is a sectional view taken in the direction a of fig. 1.

Fig. 3 is a schematic view of a continuous absorbent core as formed in the prior art.

Fig. 4 is a schematic view of a prior art discontinuous absorbent core as it is formed.

FIG. 5 is a schematic diagram of the fibers and polymeric material of FIG. 4 as they come together at the ends of the mold cavity.

Fig. 6 is a schematic view of the method of forming the absorbent core according to the present invention.

Fig. 7 is a schematic view of the structure of a single molding unit in the present apparatus for molding an absorbent core.

In the above figures, the components indicated by the respective reference numerals are as follows: 1 is a lower-layer core body, 2 is an upper-layer core body, 3 is a mold cavity, 4 is a molding drum, 5 is a molding assembly, 5-1 is a tire membrane, 5-2 is an adsorption cavity, 5-3 is a supporting part, 6 is a mandrel, F is a molding area, G is a demolding area, H is a transition area, 7 is a fluff collecting bin, 8 is a defibrator, 9 is a feeding mechanism, and 10 is a transfer drum.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1

The forming device for the absorbent core of the embodiment comprises a forming drum 4 and a plurality of forming assemblies 5, as shown in fig. 6 or fig. 7, wherein the forming assemblies are distributed along the circumferential direction of the forming drum and are arranged on the forming drum, and the forming assemblies rotate independently relative to a mandrel 6 of the forming drum; the peripheral surface of the forming drum is provided with a forming area F and a demoulding area G, the rotating speed of each forming assembly in the forming area is less than that in the demoulding area, the forming assemblies in the forming area are in a close connection state, and the forming assemblies in the demoulding area are in a separated state. Wherein each molding unit performs the molding of the absorbent core in the molding area, and the demolding and transferring of the absorbent core in the demolding area. In addition, in the embodiment, the peripheral surface of the forming drum is further provided with a transition region H, the forming region, the demolding region and the transition region are sequentially arranged along the rotation direction of the forming drum, and in the transition region, the rotation speed of the forming assembly is gradually reduced from the rotation speed consistent with that of the forming assembly in the demolding region to the rotation speed consistent with that of the forming assembly in the forming region; at the same time, the distance between adjacent molding assemblies also gradually decreases. The transition area can avoid the phenomena of collision and the like between all parts caused by the rapid change of the rotating speed of the forming assembly, and further improve the stability of the forming equipment.

In the forming drum, a fluff collecting bin 7 is arranged outside the forming area, the fluff collecting bin is also connected with a defibrator 8 for throwing fibers and a feeding mechanism 9 for throwing high polymer materials, and an outlet of the fluff collecting bin covers the forming area. The fiber separating machine is mainly used for throwing fiber materials, the feeding mechanism is mainly used for throwing high polymer materials, and the fiber materials and the high polymer materials are mixed in the down collecting bin and gradually fall into tire membranes of all forming assemblies in a forming area under the negative pressure action of the forming area in the forming drum to form the absorbing core. Outside the demolding region, a transfer drum 10 is provided, the outer circumferential surface of which is in contact with the outer circumferential surface of the shaping drum and forms a transfer channel for the absorbent core. When the molding assembly takes the molded absorbent core body into a demolding area, the absorbent core body is gradually released from a tire membrane of the molding assembly under the action of the transfer drum and transferred into a subsequent process by the transfer drum; the principle of demolding and transferring by using the transfer drum is the same as that of a transfer mechanism commonly used in a conventional absorbent core body molding device. When the device is used, a pulp board is defibered through a defibrator, the formed pulp board enters a fluff collecting bin, a feeding mechanism selectively feeds high polymer materials into the fluff collecting bin according to product requirements, the fibers and the high polymer materials are mixed in the fluff collecting bin, and under the negative pressure action of a forming area in a forming drum, the mixed materials move towards the direction of the forming drum in the fluff collecting bin and are integrated and formed along a die cavity of a tire film in a forming assembly on the surface of the forming drum to form a required absorption core body, and then the absorption core body is transferred to a demolding area and transferred to the next production process under the action of a transfer drum.

As shown in fig. 7, the molding assembly includes a membrane 5-1, an adsorption chamber 5-2 and a support member 5-3, the membrane covers the adsorption chamber, the support member is disposed at the bottom of the adsorption chamber, a transition shaft seat (not shown) is disposed at the lower end of the support member, the transition shaft seat is coaxially disposed at the periphery of the mandrel of the molding drum, the transition shaft seat is externally connected with a driving motor, and the membrane is embedded on the peripheral surface of the molding drum. In the structure, each forming assembly is independently connected with one driving motor, and the rotating speed of each corresponding forming assembly is controlled by each driving motor through a corresponding transition shaft seat, so that the rotating speed of each forming assembly can be independently controlled or adjusted, and interference with the rotating speed of the forming drum is avoided. Among a plurality of forming assemblies, the transition axle bed in each forming assembly is installed in the periphery of forming drum dabber layer by layer, and passes through the bearing connection between transition axle bed and the dabber or between two adjacent transition axle beds, and every transition axle bed passes through a set of external driving motor of power transmission subassembly. In fact, the main structure of a single forming assembly (including a tire membrane, an adsorption type and a supporting component) in the structure is the same as that of a traditional forming assembly, and the difference is that in the forming equipment, each forming assembly is provided with an independent transition shaft seat and a driving motor, so that the forming assemblies not only rotate along with a forming drum, but also independently rotate relative to the forming drum, and the adjacent forming assemblies are in a close connection state or a phase separation state through the rotation speed change of each forming assembly, and the power driving mode is the same as that of a similar power mechanism in the similar field.

And an air distribution device is arranged in the forming drum, and an adsorption chamber in the forming assembly entering the forming area is communicated with the air distribution device to form negative pressure. The structure is the same as that of a conventional building drum.

The forming method of the absorption core body can be realized through the forming equipment, and specifically comprises the following steps: the method comprises the following steps that a forming area and a demolding area are arranged on the peripheral surface of a forming drum, and each forming assembly arranged on the forming drum independently rotates relative to a mandrel of the forming drum; after the molding assemblies enter the molding area, the adjacent molding assemblies are tightly connected, and the absorption core body is molded; after the molding assemblies exit the molding area, the molding assemblies rotate at an accelerated speed, adjacent molding assemblies are separated, and demolding and transferring of the absorbent core are performed. In the molding area, each molding assembly synchronously rotates along with a mandrel of the molding drum; in the demolding region, the rotational speed of each molding assembly is greater than the rotational speed of the mandrel of the molding drum. The peripheral surface of the forming drum is also provided with a transition area, the forming area, the demoulding area and the transition area are sequentially arranged along the rotation direction of the forming drum, and in the transition area, the rotating speed of the forming assembly is gradually reduced to be consistent with the rotating speed of the forming assembly in the forming area. The absorption core is a discontinuous absorption core and is used as a single-layer absorption core or an upper-layer core of a double-layer absorption core. The absorption core body formed by the forming method can be independently applied to subsequent product processing as a single-layer absorption core body according to the actual requirements of different types of disposable sanitary products, and can also be used as an upper-layer core body of a double-layer absorption core body to be applied to subsequent product processing after being compounded with a lower-layer core body to form an absorption core body whole.

When the forming method and the forming device of the absorption core are applied, the principle is as follows: the rotation speed change of each forming assembly on the forming drum relative to the mandrel of the forming drum is utilized to ensure that the forming assemblies can form a continuous state of mutual close together and a discontinuous state of mutual separation; in the molding area of the molding drum, the molding assemblies are close to each other and tightly connected, so that the distance between the tire membranes of two adjacent molding assemblies reaches a preset minimum value, and the molding effect of the absorption core body is close to the molding effect of the molding drum in a continuous state of the mold cavity; after forming, the forming components gradually enter a demoulding area, adjacent forming components are gradually separated before reaching the joint of the transfer drum and the forming drum, when the joint of the transfer drum and the forming drum is reached, the distance between the adjacent forming components reaches a preset maximum value, the absorption core is demoulded and transferred under the action of the transfer drum, and if the formed absorption core is used as an upper layer core of the double-layer absorption core, the absorption core and a lower layer core of the absorption core are compounded to form the whole body of the absorption core. Therefore, the phenomenon that fibers and high polymer materials are gathered at the end part of the cavity due to uneven air flow in the forming process of the absorbent core body is improved. Wherein, the minimum and the maximum of distance between the fetal membranes of two adjacent shaping subassemblies can be set or adjusted according to the actual demand of different disposable hygienic products and the specific distribution condition of each part of the shaping subassemblies.

Example 2

The forming method and the forming device of the absorbent core in this embodiment are applied to forming adult diaper products, and are mainly used for forming the upper core of the absorbent core, and the specific process is as follows:

the main component of the upper core body is formed by mixing water-absorbing fiber and high polymer material. The both ends in collection fine hair storehouse are connected with defibrator and forming drum respectively, continuously carry the fibre to the forming drum, simultaneously in transportation process, feed mechanism can be simultaneously the ration to collection fine hair storehouse supply macromolecular material as required, fibre and macromolecular material mix the back in collection fine hair storehouse, gather in the child mould on forming drum surface under the traction of air current. This is the same as the prior art.

However, in this embodiment, the fluff collecting bin and the forming drum are only communicated in the range of the forming area, but are not communicated in other areas, and the range of the forming area can be adjusted as required. The present embodiment is merely illustrative, and does not impose any specific area limitation requirement. When the molding components arranged on the molding drum pass through the molding area, the adjacent molding components are in a close state, and the molding cavities of the molding dies on the surfaces of the adjacent molding components in the molding area are close to each other and in a minimum clearance state, so that the molding cavities can be approximately considered to be continuous. The forming drum is provided with a corresponding air distribution device (not shown in the figure, the structure of the forming drum is the same as that of the existing forming drum), a forming assembly passing through the forming area is communicated with the air distribution device, negative pressure is formed on the surface of the die cavity of the forming assembly, and the fibers and the high polymer materials are gathered and integrated on the surface of the die cavity in the forming area under the traction of the negative pressure. After the upper core body shaping, keep away from the opposite side of shaping region on the building drum, be equipped with a drawing of patterns region, behind the die cavity cohesion integrated type on shaping subassembly surface, can continue to rotate to the drawing of patterns region along the dabber of building drum, thereby shaping subassembly will accelerate its rotation rate and make its and adjacent shaping subassembly's distance pull open this moment, and rather than the interval size phase-match in the core of lower floor, it is rotatory according to the same speed with shaping subassembly to shift the drum, along tangential direction with the good upper core body drawing of patterns of shaping and compound with the core of lower floor, form the whole of absorbing the core and transfer to subsequent production processes.

As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.