CN221067245U - Production mould of felt handicraft with core material - Google Patents

Abstract

The utility model belongs to the technical field of artware processing, and provides a production die of felt artware with a core material, which comprises the following components: the elastic die body and the rigid die body are matched for use so as to limit a material to be processed in a preset area, and the material to be processed at least comprises a core material and a fiber mesh sheet coated on the outer side of the core material; the elastic die body comprises an elastic coating body, when the elastic die body and the rigid die body are clamped, the elastic coating body biases and loads the material to be processed on the rigid die body, and as the elastic coating body adopted by the elastic die is not a traditional rigid die, after being loaded by the elastic coating body, fiber meshes are loaded on the core material and still properly retain fiber gaps inside the layers of the core material, and the texture of the manufactured craft blank after thermal bonding is fluffy, and the hand feeling is excellent.

Description

Production mould of felt handicraft with core material

Technical Field

The utility model belongs to the technical field of artware processing, and particularly relates to a production die of a felt artware with a core material.

Background

The handicraft article is a popular commodity which is collected, appreciated, presented, played and displayed in the current market, and is mainly made of single metal, alloy metal, plastic materials, wood materials and the like, and hollow blanks are arranged in the current market for reducing the production cost and the weight of products.

In 2023112431407 hollow artwork blanks submitted before the applicant and a preparation method thereof, the applicant provides a flexible fiber artwork blank with a special shape to replace artwork blanks with textures such as metal, plastic materials, wood materials and the like in the prior art.

Disclosure of utility model

The application aims to provide a mould for producing fiber handicraft with filler, which has plush hand feeling and relatively definite shape.

The utility model aims at solving the technical problems, and provides a production die of felt-like artware with a core material, which comprises: the elastic die body and the rigid die body are matched for use so as to limit a material to be processed in a preset area, and the material to be processed at least comprises a core material and a fiber mesh sheet coated on the outer side of the core material; the elastic die body comprises an elastic coating body, and when the elastic die body and the rigid die body are clamped, the elastic coating body biases and loads the material to be processed on the rigid die body.

Preferably, the elastic die body comprises a bottom plate, a through hole is formed in the bottom plate, the elastic coating body is arranged in the through hole, and the opening edge of the elastic coating body is fixed on the inner wall of the through hole.

Preferably, the elastic coating body includes a mesh cloth material having a plurality of mesh holes formed thereon in a matrix or in a random manner.

Preferably, the elastic coating body further comprises an air supply duct, wherein the air supply duct is matched with the elastic die body and supplies hot air or cold air to the elastic coating body.

Preferably, the rigid mould body is also internally provided with a conduit capable of supplying a heat exchange fluid medium.

Preferably, the rigid die body is internally provided with a PTC heater and/or a semiconductor refrigeration sheet.

Preferably, the elastic die body is used as an upper die, and the rigid die body is used as a lower die; or the elastic die body is used as a lower die, and the rigid die body is used as an upper die.

The beneficial effects are that:

the mould provided by the utility model is particularly suitable for producing felt-like artware with a core material, wherein the fiber mesh is coated outside the core material, and the felt-like artware with the core material is processed by an elastic mould body and a rigid mould body in a mould closing state. Because the elastic coating body adopted by the elastic die is not a traditional rigid die, after the elastic coating body is loaded, the fiber mesh sheet is loaded on the core material, and the fiber gaps inside the fiber mesh sheet can be properly reserved, the texture of the manufactured artwork blank body after the thermal bonding is fluffy, and the hand feeling is excellent.

Drawings

FIG. 1 is a schematic view of the arrangement of fibers in a fiber web according to the present utility model;

FIG. 2 is a diagram of a process for manufacturing a felt-based artwork blank having a core material according to the present utility model;

FIG. 3 is a diagram of a second process for manufacturing a felt-based artwork blank having a core material according to the present utility model;

FIG. 4 is a second exploded view of the process of manufacturing a felt-based artwork blank having a core material according to the present utility model;

FIG. 5 is a cross-sectional view of the core material coated first fiber web of FIG. 3;

FIG. 6 is a schematic illustration of an intermediate product formed after heat setting of the core material of FIG. 5 and the coated first fiber web;

FIG. 7 is a third process diagram of a felt-based artwork blank having a core material made according to the present utility model;

Fig. 8 is a diagram of a process for manufacturing a felt-based artwork blank having a core material according to the present utility model.

The label in the figure is:

10. The first elastic die body, 11, the first elastic coating body, 12, the first rigid die body, 20, the second elastic die body, 21, the second elastic coating body, 22, the second rigid die body, 30, the first fiber web, 31, the flange, 32, the gap, 33, the reinforcing fiber web, 34, the fluffy fiber web, 35, the second fiber web, 40, the core material, 41, the first surface area, 42, the second surface area.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a fiber" includes aspects having two or more such fibers unless the context clearly indicates otherwise.

As used herein, the term "comprising" may include aspects that "consist of … …" and "consist essentially of … …. The term "comprising" may also mean "including but not limited to".

The term "fiber" as used herein includes fibers of extreme or indefinite length (i.e., filaments) and fibers of short length (i.e., staple fibers). It is further understood that the fibers described herein may be interpreted to include materials of virgin or recycled origin, or a combination of both. In certain aspects of the utility model, the fibers comprise recycled material, wherein the recycled material includes, but is not limited to, post-consumer or post-industrial process materials or combinations thereof. In still other aspects, the fibers used in the present utility model comprise a starting material.

The following is a specific embodiment of the present utility model.

Fiber treatment stage

In the fiber treatment stage, this embodiment relates in part to a staple fiber web forming process. The fibre treatment stage can be summarized in particular as: fiber preparation, fiber carding, net forming, and fiber net reinforcing (forming). The fiber treatment stage is followed by a mold thermoforming stage.

1. Fiber preparation

In the present utility model, a fiber composite material including at least a first fiber and a second fiber is used, and the fiber preparation stage is a preparation process for the fibers before the web formation, and is an important step in the web formation.

The tasks of fiber preparation are mainly:

1) And determining the raw material usage amount according to the product design requirement.

2) The fiber raw materials of various components are loosened by the mixing and loosening process, so that the lump-shaped fibers are separated into bundles or single fibers, and the requirement of uniform mixing and loosening is met.

3) The oiling agent is applied to the synthetic fibers to prevent static electricity generated by the fibers in the processing process.

4) A uniform fibrous layer is produced and fed to a carding machine.

Thus, general process flow of the upmix: catching cotton, feeding cotton (weighing), mixing cotton, opening, feeding cotton and carding.

Typical opening and mixing devices are bale pluckers, weighing machines, cotton-blending curtain opener, multi-bin mixers, automatic mixers. Through the fiber preparation stage, the first fiber and the second fiber form a mixed material according to a preset proportion, and the mixed material is supplied to the subsequent carding machine for web forming treatment.

2. Fiber carding

The (bulk/bundle) of the first and second fibers, which are open and mixed, are carded into a thin web of individual fibers for laying up into a web or directly for web consolidation or through air-laying. The task of carding is mainly: thoroughly carding the mixed fiber raw materials to form a single fiber state; uniformly mixing the first fiber and the second fiber in the raw material; further removing impurities in the raw materials; the fibers are straightened in parallel.

The general technological process of carding is as follows: fiber feeding, pre-carding, and web forming (single-layer or double-layer web). The carding machine mainly comprises a feeding mechanism, a pre-carding mechanism, a mess device, a net forming mechanism and the like. The functions of the mechanisms are as follows:

① The feeding mechanism (raw material feeding) is used for uniformly feeding the fiber raw material at regular time and quantity and feeding the fiber raw material in a cotton roll shape or a sheet cotton shape.

② And (3) a pre-carding mechanism: the fed fibers are pre-combed.

③ Carding mechanism: each working roll finely carded the fibers.

④ Clutter device: part of fibers are arranged in a disordered way, the disorder degree of the arrangement of the fibers is improved, and the difference of the longitudinal and transverse properties of the fiber web is reduced. Fiber carding is an important step in dry-laying, where the thin web output from the carding machine directly affects the uniformity and structure of the fibrous web.

3. Web-forming fiber web

The web forming step is aimed at producing a fluffy web. It may be a mechanical lapping, the task being to lay up the web output from the carding machine to increase its areal density and thickness, and then to draw it through a random drawing device to increase the degree of random alignment of the fibers. Alternative ways of laying may be parallel laying and cross laying. The parallel lapping mode is to stack the thin net output by a plurality of carding machines into a certain thickness and then output the thin net, the uniformity of the fiber net is good, but the thickness and the width of the fiber net are limited by carding equipment. The cross-lapping mode is to process a thin web output by a carding machine, the web thickness and the web width can be adjusted by adjusting relevant technological parameters of lapping equipment, but the web uniformity is inferior to that of a parallel lapping mode, and the thinner the web is, the worse the web uniformity is.

The fiber net sheet may be air-laid, that is, the fiber is fed into cylinder or licker-in rotating at high speed to be further carding into single fiber state, and the fiber is dropped from the saw teeth and condensed on the net curtain (or dust cage) under the combined action of the centrifugal force of cylinder or licker-in and air flow. Air-laying technology uses air to strip fibers from a carding machine and deliver them to a web-forming curtain.

In this embodiment, however, the web is not limited to being laid, so long as a fluffy fiber web can be produced.

4. Fiber mesh reinforcement

The fiber mesh reinforcing step aims to improve the overall strength of the fiber mesh, and experiments prove that if only unreinforced fluffy fiber mesh is directly subjected to the later-stage die heat setting processing, the strength of the produced felt layer is low, and the rebound resilience is poor. Therefore, it is necessary to increase the strength of the fiber mat in this step and reinforce the fluffy fiber mat into a reinforced fiber mat.

The reinforcing mode can be selected from needle punching reinforcing and water punching reinforcing, and the two reinforcing processes are both in the prior art.

The needling reinforcement principle is to repeatedly puncture the fluffy fiber mesh with a needle with a triangular (or other shape) cross section and a barbed hook at the edge to form a plurality of 'pins' composed of fiber bundles and to staple the fiber mesh, so that the fiber mesh is compressed and cannot recover, and the reinforcement fiber mesh with certain strength, density and elasticity is formed.

The water jet strengthening is also called water jet method or hydraulic entanglement method, hydraulic jet method and jet net spraying method, and is characterized by that it utilizes high-speed high-pressure water flow to impact fluffy fibre net sheet so as to promote the fibre to be mutually entangled and cohesive so as to attain the goal of strengthening fibre net. During the process of impacting the fiber web by the water needle, part of surface fibers are shifted under the action of water power and brought into the bottom of the web from the surface, so that entanglement and cohesion among the fibers are caused, countless mechanical bonds are formed, the fiber web is reinforced, and finally, the reinforced fiber web is obtained.

Mold thermoforming stage

At this stage, the reinforcing fiber mesh sheet is heated in a mold, the first fibers having a first melting point and the second fibers having a second melting point higher than the first melting point are heat-treated, a heat-bonding reinforcing effect occurs, and a densified fiber mat is formed. The first fiber and the second fiber with different melting points are heated, softened, melted and have flowing characteristics (thermoplasticity) in the heat bonding reinforcing stage, the crossing points of the first fiber and the second fiber are mutually adhered, and the melted polymer is solidified after cooling, so that the fibers are mutually adhered. The thermal bonding process is a process of heating, deforming, melting, flowing and solidifying into a cloth.

For the hot-melt material, the hot-melt material is a thermoplastic polymer with a low melting point, such as hot-melt fibers, and generally used hot-melt fibers include polypropylene (PP), polyethylene (PE), polyvinyl chloride, and the like. The novel hot-melt fibers comprise ES, PP/PE, PP/PET and other composite fibers. ES is a polypropylene and high-density polyethylene bi-component composite fiber, the composite structure is composed of two kinds of 'core-spun' and 'parallel' and the sheath of the core-spun type is polyethylene with the melting point of 110-130 ℃. The PP/PE is polypropylene and polyethylene composite fiber. The PP/PET is polypropylene and polyester composite fiber. When these fibers are heated, only the low melting point component melts and flows, while the high melting point component retains its fibril characteristics.

The heating means can be solid heat conduction or hot air heating, so that the reinforced fiber net sheet is melted, bonding is formed at the crossing points among fibers, the consolidation of the fiber net is realized, the thermal bonding reinforcing effect is generated, and then the felt-like handicraft blank with the core material can be obtained. See in particular the examples below.

Example 1:

The embodiment provides a felt-based artwork blank with a core material, which comprises a main body, wherein the main body is provided with the core material, and a coating layer is arranged outside the core material; the coating layer includes a densified fibrous mat formed from first fibers having a first melting point and second fibers having a second melting point higher than the first melting point by heat treatment.

The term "densification" in this embodiment corresponds to the general density recognition of felt products by those skilled in the art, relative to the density of the fiber mat formed by the mixed laying of the first and second melting point fibers prior to the heat treatment.

The material of the core material can be foamed plastic, and the foamed plastic is a polymer material formed by dispersing a large number of gas micropores in solid plastic, has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like, has better dielectric property than matrix resin, and has wide application range. Almost all kinds of plastics can be made into foamed plastics, and foam molding has become an important field in plastic processing. The foam may be pre-shaped according to the artwork shape and then used as a core material to produce a felt-like artwork blank. In addition, the core material in this embodiment is required to have a certain heat resistance, and the shape of the core material can be maintained when the first fiber can is melted. Typical foams may have such properties.

In the embodiment, the first fiber and the second fiber with different melting points are adopted to generate the handicraft blank with the flexible coating layer, the densified fiber felt is used as the surface layer material of the handicraft blank, so that the handicraft blank has plush hand feeling, the shape of the handicraft blank is determined by the core material, and the handicraft blank is simple to manufacture, low in cost, good in shaping performance and more suitable for being used as a handicraft for placement and playing.

Example 2:

In addition to containing the foregoing embodiment contents, the present embodiment further includes: the first fiber is in a sheath-core structure, and the second fiber is a colored short fiber with soft touch. The first fiber has a sheath-core structure, and the core material of the sheath-core structure is preferably a material such as PET (polyethylene terephthalate) which is not melted by heat during heating. The sheath portion of the sheath-core structure is preferably made of a material that melts by heat generated during heating, and polyolefin resins such as polypropylene resin and polyethylene resin are suitable. In particular, polypropylene resin having good compatibility with the polypropylene resin used as the base material is preferably used for the skin portion. Therefore, in the heating process, the sheath portion of the sheath-core structure of the first fiber melts at the heating temperature at the time of molding and adheres to the second fiber, but the core material does not melt and can maintain the original shape, so that occurrence of the dishing defect can be prevented. Thereby substantially maintaining a well defined shape of the interior cavity of the artwork mold.

As a fiber of the sheath-core structure, it is generally difficult to dye, and the fiber is generally white or black, and the fiber stiffness is high and not soft enough. Therefore, on the one hand, in order to increase the color richness of the artwork and on the other hand, the soft hand feeling experience of the artwork is improved, and the second fibers can be colored short fibers with soft touch feeling. The purpose of generating the expected color effect on the artwork blank body is achieved through the mixing of the first fibers and the second fibers. Preferably, the second fibers are natural fibers that are bast fibers, cotton, cellulose, wool, silk, flax, or any combination thereof, which are readily dyed and have a different hand feel than the first fibers, i.e., the sheath-core fibers.

Example 3:

In addition to containing the foregoing embodiment contents, the present embodiment further includes: the first fibers and the second fibers are paved into fiber meshes in random directions or are directionally paved into fiber meshes in preset directions, and then the fiber meshes are heated by a die to form the densified fiber felt.

The example further emphasizes the web structure of the fibrous web, which refers to the arrangement of the fibers in the web, expressed in terms of degree of fiber orientation (degree of orientation). The fiber arrangement is longitudinal along the machine output direction, transverse to the machine output direction, and random along all directions. The degree to which the fibers are aligned in a single direction in the web is referred to as the degree of orientation, and the degree of uniformity in the number of fibers aligned in each direction of the web is referred to as the degree of clutter. Fig. 1 is a schematic view showing the arrangement of fibers in a fiber web.

The fiber mat was laid in a random direction, and the resultant densified fiber mat was excellent in thickness, quality stability and identity. However, when the special needs are met, the fibers need to be directionally paved, if special positions of the artware need to be formed to simulate animal feathers and fur, the special artware surface features are formed after special and regular fiber carding and placement are carried out.

One possible fiber mixing approach is that the second fibers are mixed with the first fibers to form a mat of lofty fibers, and the second fibers are consolidated after forming a colored, multi-layered pattern on the surface of the mat of lofty fibers, and then heated by a die to form a densified fibrous mat. The artwork blank in the embodiment is particularly suitable for manufacturing the blank of the artwork with animal modeling or fur texture.

Example 4:

in this embodiment, a method for manufacturing a felt-like artwork blank with a core material is provided, specifically:

S1) mixing and paving first fibers with a first melting point and second fibers with a second melting point higher than the first melting point to form a fiber net sheet; the fibrous web is a fibrous batt that shrinks after subsequent heating operations to produce a felt-like pile of lower thickness with a relatively flat surface. Therefore, in the paving process, the thickness of the fiber flocculent sheet needs to be appropriately increased or decreased in consideration of the applicable mold or the three-dimensional configuration of the finally formed artwork.

S2) coating the obtained fiber mesh on the outer side of the core material, and then placing the fiber mesh into a mold to keep the fiber mesh shaped according to the shape of the mold body; the shape of the mould body can be selected and designed according to actual needs, but the mould body is optimally in a three-dimensional configuration, and a handicraft blank corresponding to the three-dimensional configuration mould body is also in the three-dimensional configuration.

S3) heating the die to a first melting point temperature of the first fibers, wherein the first fibers and the second fibers are subjected to heat bonding; the mold is cooled until the first fibers resolidify, the fiber mat is processed into a densified fiber mat, and the densified fiber mat is shaped by the shape of the mold cavity and the core material is encased therein.

It is to be noted and emphasized that in this embodiment, the fiber mesh is heated and shaped under the condition of being coated outside the core material, so that the produced craft blank has good adhesion between the densified fiber felt and the outer surface of the core material, and is completely different from a craft blank formed by coating the cloth-shaped densified fiber felt outside the core material after processing.

Example 5:

Referring to fig. 2-8 of the drawings, it can be seen in fig. 4 that the core 40 includes a first surface area 41 and a second surface area 42, and it is difficult to perform a subsequent heat setting operation of completely coating the fiber mesh on the outside of the core 40 at one time during the mechanized production process of the felt blank, so that the applicant proposes a feasible means of sectional coating and heating in this embodiment:

S1) mixing and paving first fibers with a first melting point and second fibers with a second melting point higher than the first melting point to form a first fiber net sheet and a second fiber net sheet;

S2) coating the first fiber mesh sheet obtained in the step S1) on the first surface area 41 outside the core material, then placing the first fiber mesh sheet into a first section of heating process, heating to the first melting point temperature of the first fibers, and performing heat bonding on the first fibers and the second fibers; cooling again until the first fibers resolidify, the first fiber mat being processed into a densified fiber mat, the first fiber mat being held in shape in the first surface area 41 by the shape of the core body to provide an intermediate product;

For step S2), see fig. 2, the operation of coating the first surface area 41 of the outer side of the core material with the first fibre mat is performed first. In fig. 5, the first fiber web is coated on the first surface area 41 outside the core material, and is further hot-pressed into an intermediate product in fig. 6. The intermediate product is covered by the first fibre mat 30 in a first surface area 41 of the core 40, but there is a gap 32 in a second surface area 42, which area is required to complement the missing fibre mat in a subsequent operation.

In fig. 7, the intermediate product has a fiber mat applied to the second surface of the core 40. S3) applying the second fiber mesh sheet 35 obtained in the step S1) to the outer side of the intermediate product, completely coating the core material corresponding to the second surface area 42 on the outer side of the core material, and then placing the core material into a second section of heating process to heat to the first melting point temperature of the first fibers, wherein the first fibers and the second fibers are subjected to thermal bonding; cooling again until the first fibers resolidify, and the second fiber mat 35 is processed into a densified fiber mat, such that the second fiber mat 35 remains set in the second surface area 42 in accordance with the shape of the core profile; obtaining the felt-like handicraft blank with the core material.

In the handicraft blank, the compact fiber felt completely covers the core material therein, and the appearance of the compact fiber felt presents plush texture. The texture of the densified fibrous mat is related to the type and the mixing ratio of the first fibers and the second fibers, for example, in step S1, the first fibers are sheath-core fibers with low melting point, the second fibers are colored short fibers, the first fibers and the second fibers are uniformly mixed and carded into a fiber mesh with cross-mixed and hooked fibers, wherein the weight content of the first fibers is not less than 15% and not more than 90%, and the object of the utility model can be achieved.

In step S1 a fluffy fibre mat comprising first fibres and second fibres is formed, the fluffy fibre mat is consolidated to obtain a consolidated fibre mat, and the consolidated fibre mat is provided as a first fibre mat and/or a second fibre mat to step S2. The process of making the reinforcing fiber mesh sheet has been described in the foregoing and will not be described in detail here. During the course of the felt-based artwork blank, the applicant found that if the densified fibrous mat is made from only fluffed fiber mats, the final felt structure texture is fluffy and lacks elasticity, so at least reinforcement fiber mats are used for the fiber mats.

In step S1 a fluffy fibre mat comprising first fibres and second fibres and a reinforcement fibre mat are formed, which after lamination is provided as a first fibre mat and/or a second fibre mat to step S2, and the reinforcement fibre mat is adjacent to the core. Referring to fig. 5 and 6, after the reinforcing fiber mesh sheet 33 is combined with the lofty fiber mesh sheet 34, a first fiber mesh sheet 30 is formed and applied to the core material 40. And reinforcing fiber mesh sheet 33 is adjacent to core 40.

In addition, in step S2), the first fiber mesh sheet is wrapped around the first surface area 41 outside the core material and extends at least partially to cover the second surface area 42, which is shown in fig. 6, that is, the flange 31 is bent at the junction between the first surface area 41 and the second surface area 42 and wrapped around the second surface area 42, and the flange 31 is attached to the second surface area 42 after hot pressing. This process ensures that the first surface area 41 is covered with the first fibre mat 30 during the first heating step, all excess material and errors are accumulated in the form of a bead 31 in the second surface area 42, and the bead 31 and the gap 32 are covered together with the second fibre mat, and the second heating step is performed. Thus, in step S3), the second fibre mat is at least partially overlapping with the first fibre mat in the second surface area 42.

The first fiber is a low-melting-point sheath-core fiber, the second fiber is a colored short fiber with soft touch, and the first fiber and the second fiber are uniformly mixed and carded into a fiber mesh formed by cross mixing and hooking of the fibers by a carding machine. Sheath-core multicomponent fibers comprise polyester as the core component and polyethylene as the sheath component. For example, sheath-core multicomponent fibers comprise a polyester having a high melting point as the core component and a polyester having a low melting point as the sheath component. Further, in step S1), the second fibers form a colored, multi-layered pattern on the surface of the fiber mesh sheet. By multi-layer it is meant that the second fibers themselves are colored fibers which are mixed in multiple layers of the fiber web, after hot pressing, naturally forming a multi-layer pattern.

Example 6

In this embodiment, a possible mold structure for manufacturing a felt-like artwork blank having a core material will be described in detail.

In this example, a core material coated with a fiber mat is placed in a mold body, and after the mold is closed, the fiber mat is positioned in a predetermined shape, and then heated to generate a thermal bonding effect of fibers, and then cooled, thereby manufacturing a felt-like artwork blank having the core material.

According to example 5, the whole processing process at least needs a first stage heating process and a second stage heating process, so that the selectable mold can be a set of molds, and the two stage heating processes are completed successively; or two sets of dies, which respectively complete the first stage heating process and the second stage heating process.

Taking fig. 2 as an example, the mold includes a first elastic mold body 10 and a first rigid mold body 12, and the first elastic mold body 10 is used in cooperation with the first rigid mold body 12 to define a material to be processed in a predetermined area. The first elastic die body 10 includes a first elastic coating body 11, when the first elastic die body 10 and the first rigid die body 12 are clamped, the first elastic coating body 11 can bias and load the material to be processed on the first rigid die body 12, since the first elastic coating body 11 is not a traditional rigid die, after being loaded by the first elastic coating body 11, fiber meshes located at the outer side of the core material can still properly retain fiber gaps inside the fiber layers, and the texture of the felt structure produced after thermal bonding also has fluffy feeling and excellent hand feeling. It can be seen that the first elastic coating 11 is not a rigid forming mold of a fixed shape in the conventional sense, and the final shape of the artwork blank is related to the shape of the core material 40, the thickness of the fiber mesh, and a plurality of factors of the elastic deformability of the first elastic coating 11.

The use of the first elastic coating 11 is an extremely important inventive concept of the present utility model. The handicraft blank body cannot be processed according to the production process of large-density sheet fiber products such as carpets, felts and the like in other living fields, the blank body is required to be suitable for various requirements such as comfort, softness, elastic hand feeling and the like of a user in hands, and the blank body is in a space three-dimensional configuration. In prior art hot pressing techniques for fiber processing, rolls are commonly used, i.e., a loose web is fed between a pair of heated rolls, and as the web passes from the nip point, the fibers are heated and pressed by the rolls, melting occurs and a bond is formed at the point of intersection between the fibers. Because roll processing is suitable for continuously produced fiber sheets or strips, it is not suitable for processing of the artwork blank of the present utility model.

When the first elastic mold body 10 adopts the first elastic coating body 11, the first elastic coating body 11 is preferably made of a net-shaped cloth material, and since the cloth structure is provided with meshes arranged in a matrix (the meshes arranged in a disordered manner can achieve the effect), when the first elastic coating body 11 is loaded on the first fiber mesh, the shape of the meshes can be changed, and therefore, the first elastic coating body 11 provides good deformability, can adapt to the shape of the core material 40 more, and enables the first fiber mesh to be fully combined with the outer surface of the first surface area 41 of the core material 40. On the other hand, the first fiber web can be heated using hot air, which can directly supply heat to the first fiber web 30 through the mesh holes of the first elastic coating body 11, improving heating efficiency.

Of course, the first elastic coating 11 may also be made of a rubber-like material and have a closed surface. It is only necessary to be able to provide the first elastic coating body 11 with an elastic loading force. If a first elastic coating 11 of a closed surface is used, the first elastic coating 11 itself may transfer heat to the first fibre mat, i.e. the external heated air flow may indirectly heat the first fibre mat.

In fig. 2, since the second fiber mat 35 is added to the intermediate product in consideration of the second stage heating process, the first elastic coating body 11 is positioned at the lower die position, the first fiber mat 30 is placed above the first elastic die body 10, the core material 40 is fed downward, the core material 40 drives the first fiber mat 30 to fill the first elastic coating body 11, the first rigid die body 12 is pressed downward as the upper die to fix the material to be processed in a predetermined area, then the first fiber mat 30 is supplied with hot air flow, the hot air flow can directly supply heat to the first fiber mat 30 through the mesh openings of the first elastic coating body 11, after a predetermined time, the surface layer of the first fiber is sufficiently melted, at this time, the material to be processed is supplied with cold air flow to be cooled, the material to be processed is processed into the intermediate product, and the first stage heating process is ended.

In the second heating step, the mold is opened, the first rigid mold body 12 is lifted, then the second fiber mesh sheet 35 is applied to the intermediate product, the core material 40 is completely covered by the fiber mesh sheet, the first rigid mold body 12 is lowered again, at least the first rigid mold body 12 is in a heating state, the second fiber mesh sheet 35 corresponding to the heating area is processed into a densified fiber mat, and the second fiber mesh sheet is kept fixed in a second surface area according to the shape of the core material body; obtaining the felt-like handicraft blank with the core material.

Of course, the intermediate product may be placed in a second set of molds to complete the second stage heating process. As shown in fig. 7 and 8, the second set of dies includes a second elastic die body 20, a second rigid die body 22, and similar to the first elastic die body 10 described above, the second elastic die body 20 also includes a second elastic coating body 21, in this embodiment, the second elastic die body 20 is used as an upper die, and the intermediate product is pressed down, so that the intermediate product is more tightly combined with the second fiber web 35, and is heated by at least the second rigid die body 22, and the second fiber web 35 corresponding to the heated area is processed into a densified fiber mat, so that the second fiber web is kept shaped in the second surface area according to the shape of the core body; obtaining the felt-like handicraft blank with the core material.

The first and second elastic mold bodies may have a plurality of elastic coating bodies, and the elastic coating bodies may be arranged in a matrix form, for the production efficiency.

In a single-ply embodiment, the first fiber mesh 30 and the second fiber mesh 35 may each be a reinforcing fiber mesh, such as a fiber mesh reinforced by needling. The applicant tries to directly process the handicraft blank by using the fluffy fiber net sheet, but the processed product felt layer is less stiff and too soft in hand feeling, and is not suitable for being placed as the handicraft or played by a hand. Therefore, the reinforcing fiber mesh sheet needs to be selected, has certain strength, and has better effect because the strength and the elasticity are further increased due to the formation of the compact fiber felt after the fiber mesh sheet is heated by the die.

However, the reinforcing fiber mesh sheet cannot be perfectly bonded to the surface of the core material 40 due to the size or high strength of the reinforcing fiber mesh sheet, and the outer surface of the processed craft blank may form wrinkles, which may affect the visual appearance and the feel. Thus, applicant has proposed a dual layer fiber mesh embodiment. That is, the corresponding embodiment of fig. 5-6, wherein the fibre mat comprises two layers, one layer near the core 40 being a reinforcing fibre mat 33 responsible for providing the strength and elasticity of the final product, and outside the reinforcing fibre mat 33 is a fluffy fibre mat 34, which, due to its very fluffy softness, forms a smooth, homogenous-looking green surface after heating of the mould, completely covering the folds of the underlying reinforcing fibre mat.

It should be noted that, according to the foregoing description, the fluffy fiber mat is changed into the reinforced fiber mat after being reinforced, but in this embodiment, the same material as the reinforced fiber mat is not limited or implied, or the reinforced fiber mat is a process product after the fluffy fiber mat, it is fully understood by those skilled in the art that the reinforced fiber mat of the inner layer may be formed by mixing fibers with relatively low price, and the fluffy fiber mat of the outer layer may be formed by mixing fibers with a desired color and performance to provide a high-quality green surface, so long as the expected thermal bonding effect of the fluffy fiber mat and the reinforced fiber mat of the inner layer occurs when the fluffy fiber mat and the reinforced fiber mat of the inner layer are heated in the mold can be satisfied.

As for the heating means, the embodiment is not limited to the above, and a hot air supply system may be used for the elastic mold body, for example, the elastic mold body is placed in an air duct structure with a cover body, and a heat-conducting fluid medium pipe or an electronic component may be used for the rigid mold body to perform temperature control. The heat conduction fluid medium pipeline and the valve device are formed, so that the heat supply and cooling of the fluid medium to the die body can be controlled; the electronic components can be PTC heaters and semiconductor refrigerating sheets, which are mature heating and refrigerating technologies, and the embodiment is only specific use of the heating and refrigerating elements and has no improvement.

With respect to temperature control, the mold may optionally be heated to between 110-250 degrees celsius depending on the first melting point, and the temperature is maintained until the sheath of the low melting point sheath-core fiber of the first fiber melts. And cooling the die to the temperature below 110 ℃, resolidifying the surface shell of the low-melting-point sheath-core fiber of the first fiber, and felting and shaping the fiber mesh according to the shape of the die cavity to generate the densified fiber felt.

The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.

Claims (7)

1. A production die of a felt-like artwork having a core material, comprising: the elastic die body and the rigid die body are matched for use so as to limit a material to be processed in a preset area, and the material to be processed at least comprises a core material and a fiber mesh sheet coated on the outer side of the core material; the elastic die body comprises an elastic coating body, and when the elastic die body and the rigid die body are clamped, the elastic coating body biases and loads the material to be processed on the rigid die body.

2. The production mold of felt-like handicraft with core material according to claim 1, wherein the elastic mold body comprises a bottom plate provided with a through hole, the elastic coating body is provided in the through hole, and an opening edge of the elastic coating body is fixed on an inner wall of the through hole.

3. The manufacturing mold for a felt-like artwork having a core material according to claim 1, wherein the elastic coating body comprises a mesh cloth material having a plurality of meshes formed thereon in a matrix or in a random manner.

4. The production mold of felt-like handicraft with core material according to claim 1, further comprising an air supply duct which is matched with the elastic mold body and supplies hot air or cold air to the elastic coating body.

5. The production mold for felt-like handicraft with core material according to claim 1, wherein the rigid mold body is further provided inside with a pipe capable of supplying a heat exchange fluid medium.

6. The production mold for felt-like handicraft with core material according to claim 1, wherein the rigid mold body is internally provided with PTC heater or/and semiconductor refrigerating sheet.

7. The production mold for a felt-like artwork having a core material according to claim 1, wherein an elastic mold body is used as an upper mold and a rigid mold body is used as a lower mold; or the elastic die body is used as a lower die, and the rigid die body is used as an upper die.