CN115534227A

CN115534227A - Mould for leather texture simulation plastic daily necessities and mould surface treatment method

Info

Publication number: CN115534227A
Application number: CN202211056568.6A
Authority: CN
Inventors: 夏元安
Original assignee: Taizhou Weiweian Industry And Trade Co ltd
Current assignee: Taizhou Weiweian Industry And Trade Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-30

Abstract

The invention provides a mould for leather texture simulation plastic daily necessities and a mould surface treatment method, wherein the mould has the characteristics that: an inner membrane; the outer mold and the inner film surround to form a cavity matched with the whole or partial structure of the leather texture simulation plastic daily necessities; the charging opening is arranged on at least one of the inner film and the outer film, communicated with the cavity and used for injecting hot-melt plastics into the cavity; and the demoulding cylinder is used for driving the outer mould and the inner membrane to be separated after the hot melt plastic in the cavity is solidified, so as to realize demoulding, wherein the inner surface of the outer mould corresponds to the outer surface of the whole or partial structure of the artificial leather texture plastic commodity, the inner surface of the outer mould is provided with at least one texture concave-convex area and at least one sunken belt, the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts, and the sunken belt comprises a plurality of convex parts distributed in rows and a plurality of sunken strips respectively arranged between two adjacent convex parts.

Description

Mould for leather texture simulation plastic daily necessities and mould surface treatment method

Technical Field

The invention relates to the technical field of plastic commodity mold processing, in particular to a leather texture simulation plastic commodity mold and a mold surface treatment method.

Background

The plastic daily necessities are mainly used for accommodating daily articles or food, have the advantages of low price, rich colors and the like, and are more and more popular with consumers. For example, the daily basin, the daily box, the handbag and the like are made of plastic materials, so that the cleaning is easy, the durability is high, and the appearance is more attractive.

However, in actual use, plastic daily necessities, whether used for storing daily articles or food, are easy to deform or even break after being moved and used for a plurality of times, which affects the service life of the plastic daily necessities.

Therefore, the research and development of plastic daily necessities with good structural strength are urgent, and the research and development of corresponding moulds for processing and producing the plastic daily necessities are also very critical.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a mold for leather texture-like plastic daily necessities and a mold surface treatment method.

The invention provides a mould for a leather texture-simulated plastic daily necessity, which is used for obtaining the whole or partial structure of the leather texture-simulated plastic daily necessity by injection molding and has the characteristics that: an inner membrane; the outer mold and the inner film surround to form a cavity matched with the whole or partial structure of the leather texture simulation plastic daily necessities; the charging opening is arranged on at least one of the inner film and the outer film, communicated with the cavity and used for injecting hot-melt plastics into the cavity; and the demolding cylinder is used for driving the outer mold and the inner film to be separated after the hot-melt plastic in the cavity is solidified, so that demolding is realized, wherein the inner surface of the outer mold corresponds to the outer surface of the whole or partial structure of the leather texture-simulated plastic daily necessities, the inner surface of the outer mold is provided with at least one texture concave-convex area and at least one concave belt, the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts, and the concave belt comprises a plurality of convex parts distributed in rows and a plurality of concave strips respectively arranged between every two adjacent convex parts.

The mould for the plastic daily necessities with the simulated leather textures, provided by the invention, can also have the following characteristics: the leather texture simulating plastic daily use article is provided with reinforcing ribs protruding out of the outer surface of the leather texture simulating plastic daily use article, and concave parts are arranged on the inner surface of the outer die and correspond to the reinforcing ribs.

The mould for the leather texture-simulated plastic daily necessities provided by the invention can also have the following characteristics: wherein the recess has a textured relief region.

The mould for the leather texture-simulated plastic daily necessities provided by the invention can also have the following characteristics: wherein, the interval between two adjacent convex parts in the concave belt is 2mm to 14mm.

The mould for the leather texture-simulated plastic daily necessities provided by the invention can also have the following characteristics: wherein, be equipped with on the sunken strip and become a plurality of slope sand grip of inclination with the length direction of this sunken strip.

The mould for the leather texture-simulated plastic daily necessities provided by the invention can also have the following characteristics: wherein the textured relief areas and the recessed bands on the inner surface of the outer mold are formed by laser engraving on the inner surface of the outer mold.

The mould for the plastic daily necessities with the simulated leather textures, provided by the invention, can also have the following characteristics: the texture concave-convex area also comprises a plurality of convex points which are randomly distributed in the plurality of texture convex strips and the plurality of texture concave parts, and the convex points are formed by sand blasting on the plurality of texture convex strips and the plurality of texture concave parts.

The mould for the plastic daily necessities with the simulated cortical texture provided by the invention can also have the characteristics that: and the cooling water pipelines are arranged inside the inner film and the outer die and used for introducing cooling water and solidifying the hot-melt plastic in the cavity under the action of the cooling water.

The invention provides a mould surface treatment method, which is used for treating the surface of a mould to be treated to obtain the mould for the simulated leather texture plastic daily necessities, and is characterized by comprising the following steps: step one, performing laser engraving on a preset area of the inner surface of an outer die of a die to be processed to form a texture concave-convex area containing a plurality of texture convex strips and a plurality of texture concave parts and a concave belt containing a plurality of convex parts distributed in rows and a plurality of concave strips arranged between two adjacent convex parts respectively; and secondly, carrying out sand blasting treatment on the plurality of convex parts and the plurality of concave strips to enable the concave strips to contain a plurality of convex points.

The mold surface treatment method provided by the present invention may further have the following features: in the step one, when laser engraving is carried out, the sparsity of engraving textures of different parts in a preset area can be changed, and in the step two, when sand blasting is carried out, mutual interference of different textures during sand blasting is avoided through a local shielding mode.

Action and Effect of the invention

According to the mould for the simulated leather texture plastic daily necessities, the mould comprises the inner film, the outer film, the feeding port and the demoulding cylinder, the outer film and the inner film surround to form a cavity matched with the whole or partial structure of the simulated leather texture plastic daily necessities, the feeding port is communicated with the cavity, hot melt plastic is injected through the feeding port, after cooling and forming, demoulding is realized through the demoulding cylinder, and the whole or partial structure of the simulated leather texture plastic daily necessities can be obtained.

Furthermore, because the inner surface of the outer die is provided with at least one texture concave-convex area and at least one concave belt, the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts, the concave belt comprises a plurality of convex parts distributed in rows and a plurality of concave strips respectively arranged between two adjacent convex parts, the whole or partial structure outer surface of the simulated leather texture plastic daily product formed by injection molding through the die also comprises at least one texture touch area corresponding to the texture concave-convex area and at least one hole and groove row part corresponding to the concave belt, the arrangement of the texture touch area and the hole and groove row part can increase the structural strength of the simulated leather texture plastic daily product and increase the anti-deformation capacity of the simulated leather texture plastic daily product, and particularly when the concave belt is arranged at a position close to the bottom of the cavity, the position corresponds to a containing opening of the simulated leather texture plastic daily product, and the improvement on the strength of the simulated leather texture plastic daily product is very obvious. And the texture concave-convex area is arranged, so that the outer surface of the leather texture simulation plastic daily necessities can present a leather texture simulation effect, and the simulation effect is good.

According to the method for treating the surface of the mold of the present invention, since the method comprises the first step of laser engraving a predetermined region of the inner surface of the outer mold of the mold to be treated, a textured concave-convex area and a concave strip can be formed in the predetermined region of the mold, and further comprises the second step of sand blasting the plurality of convex portions and the plurality of concave strips, the concave strip of the mold obtained contains a plurality of convex points.

Drawings

FIG. 1 is a schematic perspective view of a mold for a plastic commodity with simulated cortical texture according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a top mounting portion of a plastic commodity mold for simulating leather texture according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a top mounting portion of a mold for a plastic commodity with simulated cortical texture according to an embodiment of the present invention;

FIG. 4 is a first perspective view of a leather-textured plastic daily pot according to an embodiment of the present invention;

FIG. 5 is a front view of a cortical texture plastic day pot in an embodiment of the invention;

FIG. 6 is a top view of a cortical texture plastic day pot in an embodiment of the invention;

FIG. 7 is a schematic perspective view of a second embodiment of a leather texture plastic daily basin in accordance with the present invention;

FIG. 8 is a cross-sectional view of a textured haptic region in accordance with an embodiment of the present invention;

fig. 9 is a schematic structural view of an outer peripheral mold and an inner mold in a combined state according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of an outer peripheral mold according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an outer top mold in an embodiment of the present invention;

FIG. 12 is a diagram illustrating a textured touch sensitive area textured with crocodile skin in accordance with an embodiment of the invention;

FIG. 13 is a diagram illustrating a textured haptic area in the form of a sheepskin texture, in accordance with an embodiment of the present invention;

FIG. 14 is a schematic view of a textured touch sensing area shown as a cowhide texture in accordance with an embodiment of the present invention;

FIG. 15 is an enlarged schematic view of portion A of FIG. 5;

FIG. 16 is a cross-sectional view taken in the direction E-E of FIG. 6;

fig. 17 is an enlarged schematic view of portion B of fig. 16;

fig. 18 is an enlarged schematic view of portion C of fig. 16;

fig. 19 is a schematic structural diagram of an inner mold in an embodiment of the invention.

Reference numerals:

the plastic daily pot 100 with a cortical texture, the pot body 10, the pot inner portion 20, the inner side portion 21, the inner bottom portion 22, the inner transition portion 23, the inner bead 231, the pot outer portion 30, the outer side portion 31, the outer bottom portion 32, the outer transition portion 33, the outer bottom bead 331, the concave groove 332, the inner and outer connecting portion 40, the outer top bead 41, the texture touch region 50, the texture concave stripe 51, the texture protrusion 52, the dimple 53, the row of holes 60, the hole 61, the ridge 62, the diagonal groove 621, the first row of holes 601, the second row of holes 602, and the third row of holes 603. The die 700, the mounting mechanism 70, the top mounting part 701, the bottom mounting mechanism 702, the inner film 71, the side part 711, the top part 712, the transition part 713, the outer die 72, the outer peripheral die 721, the texture concave-convex area 77, the concave belt 78, the first concave belt 781, the second concave belt 782, the third concave belt 783, the outer top die 722, the convex belt 7221, the die cavity 73, the feed port 74, the cooling water pipeline 75 and the demolding cylinder 76

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the present invention easy to understand, the following embodiments are specifically described with reference to the accompanying drawings for the mold for the artificial leather texture plastic daily necessities and the mold surface treatment method.

< example >

The embodiment provides a die for a plastic daily product with simulated cortical texture, which is used for obtaining the whole or partial structure of the plastic daily product with the simulated cortical texture by injection molding. The artificial leather texture plastic daily necessities are used for containing daily articles or food. The daily articles can be shoes, hats, clothes, toys, tools and the like, the food can be candies, snacks, nuts, roasted seeds and nuts and the like, and different daily articles and food are placed in the leather texture simulating plastic daily necessities so as to realize the accommodating function. In this embodiment, the simulated leather texture plastic commodity is a leather texture plastic basin. The mould for the plastic daily necessities with the simulated leather texture is used for injection molding to obtain the whole body of the plastic basin with the simulated leather texture.

FIG. 1 is a schematic perspective view of a mold for a plastic commodity with simulated cortical texture according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of a top mounting portion of a plastic commodity mold for simulating leather texture according to an embodiment of the present invention; figure 3 is a cross-sectional view of a top mounting portion of a mold for a plastic commodity with simulated cortical texture according to an embodiment of the present invention.

As shown in fig. 1 to 3, the mold 700 for a plastic daily article with simulated cortical texture in the present embodiment includes a mounting mechanism 70, an inner mold 71, an outer mold 72, a cavity 73, a feed port 74, a cooling water pipe 75, and a demolding cylinder 76.

The mounting mechanism 70 includes a top mounting portion 701 and a bottom mounting mechanism 702. The inner mold 71 is disposed on the bottom mounting mechanism 702. The outer die 72 includes an outer peripheral die 721 and an outer top die 722, the outer peripheral die 721 is disposed on the bottom mounting mechanism 702 and is circumferentially disposed outside the inner die 71, and the outer top die 722 is disposed on the top mounting portion 701 and is located above the inner die 71. The inner mold 71 and the outer mold 72 enclose a cavity 73 that fits the entirety of the simulated cortical-textured plastic basin. The feed inlet 74 is arranged on the outer top die 722, penetrates through the outer top die 722, is communicated with the cavity 73 and is used for injecting hot melt plastics into the cavity 73. A plurality of cooling water pipes 75 are arranged inside the inner mold 71 and the outer mold 72. The mold release cylinder 76 is connected to the outer peripheral mold 721 for driving the outer peripheral mold 721 to move, thereby switching the inner mold 71 and the outer mold 72 between a combined state for injecting the glue and a separated state for taking out the artificial cortical-texture plastic basin. When the inner die 71 and the outer die 72 are in a combined state (as shown in fig. 3), the hot-melt plastic injected from the feed port 74 flows along the die cavity 73 until the whole die cavity 73 is filled, the hot-melt plastic is solidified under the action of cooling water to obtain plastic daily necessities, and finally the outer die 72 is jacked up under the action of the demoulding cylinder 76 to complete demoulding, so that the plastic basin with the simulated leather texture is obtained.

The structure and operation of the inner mold 71 and the outer mold 72 will be described in detail below in conjunction with the structure of a simulated cortical texture plastic basin.

FIG. 4 is a first perspective view of a leather-textured plastic daily pot according to an embodiment of the present invention; FIG. 5 is a front view of a cortical texture plastic day pot in an embodiment of the invention; fig. 6 is a top view of a cortical-textured plastic daily basin in an embodiment of the invention.

As shown in fig. 4 to 6, the cortical-textured plastic daily pot 100 includes a pot body 10, a pot inner side portion 20, a pot outer side portion 30, and an inner-outer side junction portion 40.

The pot body 10 is used to form a storage space with an upper opening. The bowl inner portion 20 is provided on the inner surface of the bowl main body 10, the bowl outer portion 30 is provided on the outer surface of the bowl main body 10, and the inner and outer connecting portions 40 are provided at the boundary between the bowl inner portion 20 and the bowl outer portion 30 and are adjacent to the bowl inner portion 20 and the bowl outer portion 30, respectively.

The bowl main body 10, the bowl inner side portion 20, the bowl outer side portion 30, and the inner and outer connecting portions 40 are integrally formed by injection molding using a plastic material with a simulated leather texture mold 700 for daily use articles. The pot main body 10, the pot inner portion 20, the pot outer portion 30, and the inner and outer connecting portions 40 are not physically separable, and are completely separable by being unreliable separated, because they are decomposed at the parts of the cortical-texture plastic daily pot 100 by the position corresponding function.

The inner surface of the outer mold 72 corresponds to the outer pelvic side 30, the outer surface of the inner mold 71 corresponds to the inner pelvic side 20, and the bottom of the junction of the bottoms of the outer and inner molds 72, 71 (i.e., the cavity 73) corresponds to the inner and outer interface 40.

Fig. 7 is a schematic perspective view of a leather texture plastic daily pot according to an embodiment of the invention.

As shown in fig. 7, the tub outer 30 includes an outer side portion 31, an outer bottom portion 32, and an outer transition portion 33. An outer transition section 33 is located between the lateral side section 31 and the lateral bottom section 32.

The inner surface of the outer peripheral mold 721 corresponds to the outer lateral section 31, and the inner surface of the outer top mold 722 corresponds to the outer lateral section 32.

FIG. 8 is a cross-sectional view of a textured haptic region in accordance with an embodiment of the present invention.

As shown in fig. 4-8, the pelvic outer side portion 30 includes at least one texture haptic region 50 and at least two well rows 60. In this embodiment, the texture haptic regions 50 (not shown in fig. 4-7) are disposed throughout the tub outer portion 30, except that some of the cortical texture portions 50 are separated by the row of cavities 60, or different areas of the cortical texture plastic daily tub 100 are provided with different types and shapes of cortical texture portions 50.

Fig. 9 is a schematic structural view of the outer peripheral mold and the inner mold in a combined state according to the embodiment of the present invention; FIG. 10 is a schematic view of the structure of the outer peripheral mold in the embodiment of the present invention; fig. 11 is a schematic structural view of an outer top mold in an embodiment of the present invention.

Accordingly, as shown in fig. 9-11, the inner surface of peripheral mold 721 has at least one textured relief area 77 (only the location of which is shown in the figures) and at least two bands of depressions 78. Textured relief region 77 corresponds to textured tactile region 50 and recessed bands 78 correspond to the arrays of pockets 60. In this embodiment, the textured relief areas 77 are disposed on the entire inner surface of the outer peripheral mold 721, and some of the textured relief areas 77 are separated by the grooved portions 60.

FIG. 12 is a diagram illustrating a textured haptic area in the form of crocodile skin texture in accordance with an embodiment of the present invention.

FIG. 13 is a diagram illustrating a textured touch sensing area textured with sheepskin in accordance with an embodiment of the present invention.

FIG. 14 is a schematic view of a textured haptic area shown as a cowhide texture in accordance with an embodiment of the present invention.

As shown in fig. 12 to 14, three different styles of texture haptic regions 50 are shown, and each of the texture haptic regions 50 includes a plurality of texture concave stripes 51 and a plurality of texture convex stripes 52. The surface roughness of the leather texture plastic daily basin 100 can be increased through the texture concave strips 51 and the texture bulges 52, so that the friction force is increased, the probability of hands falling off and falling off in the carrying process is reduced, the texture concave strips 51 are designed to be equivalent to a plurality of thin Rong Biancao arranged on the surface of the daily basin, when the daily basin is deformed due to external force, rong Biancao is extruded, the notch is reduced, elastic potential energy (similar to the compression of a spring) is accumulated, and after the external force disappears, the leather texture plastic daily basin is restored by means of the elasticity of the plastic; the design can increase the resetting capacity of the daily basin after deformation, thereby increasing the deformation resistance capacity and ensuring that the whole daily basin is softer and more flexible.

Meanwhile, in the embodiment, in order to improve the aesthetic degree of the daily basin, the plurality of texture concave strips 51 and the plurality of texture convex strips 52 are combined, so that the simulated texture similar to the leather is formed on the surface, and the design of the leather texture touch zone 50 can not only meet the effect of improving the strength of the daily basin, but also enable the daily basin to be more beautiful and higher in grade.

Textured relief region 77 corresponds to textured tactile region 50 and has the opposite configuration. Specifically, the texture concave-convex area 77 has a plurality of texture ridges corresponding to the texture concave-convex strips 51 and a plurality of texture concave-convex strips corresponding to the texture convex-convex strips 52.

In addition, the surface of the texture concave-convex area 77 has a plurality of raised points formed by sand blasting, and the raised points are randomly distributed in the texture raised strips and the texture concave parts. The texture haptic region 50 also includes a plurality of depressions 53 formed corresponding to the plurality of bumps. As shown in fig. 8, a plurality of pits 53 are randomly distributed in a plurality of texture concave stripes 51 and a plurality of texture convex stripes 52. The texture concave strips 51, the texture convex strips 52 and the concave pits 53 are not regularly distributed and have irregular shapes. The design of the concave pits 53 can change the refractive index of the surface of the leather-texture plastic daily use basin 100 to light, so that the light sensation of the surface of the leather-texture plastic daily use basin 100 can be changed, and the visual effect of 'leather products' is further visually approached.

In view of the specific parameters, as shown in FIG. 12, when texture haptic region 50 is shown as crocodile skin texture, the width of texture depression bars 51 (i.e., the width of texture ridges) is in the range of 0.5mm to 1.2mm, the depth is in the range of 0.5mm to 1mm, and the top-view area of texture protrusions 52 (i.e., the top-view area of texture recesses) is 30mm ² To 200mm ² In the range of (1), the plan view area of the dimple (i.e., the plan view area of the bump) is 0.02mm ² To 0.1mm ² In the range of (1).

As shown in FIG. 13, when the texture haptic region 50 is represented as a suede texture, the width of the texture depression stripes 51 (i.e., the width of the texture ridges) is in the range of 0.1mm to 0.8mm, the depth is in the range of 0.05mm to 0.1mm, and the plan view area of the texture protrusions 52 (i.e., the plan view area of the texture recesses) is 1mm ² To 6mm ² In the range of (1), the plan view area of the dimple (i.e., the plan view area of the bump) is 0.02mm ² To 0.1mm ² In the range of (1).

As shown in FIG. 14, when the texture haptic region 50 is represented by a cowhide skin texture, the width of the texture concave stripes 51 (i.e., the width of the texture ridges) is in the range of 0.2mm to 1mm, the depth is in the range of 0.08mm to 0.2mm, and the top-view area of the texture protrusions 52 (i.e., the top-view area of the texture concave portions) is 5mm ² To 100mm ² In the range of (1), the plan view area of the dimple (i.e., the plan view area of the bump) is 0.02mm ² To 0.1mm ² In the range of (1).

FIG. 15 is an enlarged schematic view of portion A of FIG. 5; FIG. 16 is a cross-sectional view taken in the direction E-E of FIG. 6;

fig. 17 is an enlarged schematic view of portion B of fig. 16; fig. 18 is an enlarged schematic view of portion C of fig. 16.

As shown in fig. 5 and 15 to 18, the outer side portion 31 includes two hole/groove arrays 60, and the two hole/groove arrays 60 are respectively referred to as a first hole/groove array 601 and a second hole/groove array 602. The first pocket row 601 is adjacent to the inboard and outboard interface 40 and the second pocket row 602 is adjacent to the outboard transition 33, with the same configuration, but at a different location. The structure of the pocket row portion 60 will be described in detail below by taking the first pocket row portion 601 as an example.

Accordingly, as shown in fig. 9, the inner surface of the outer peripheral mold 721 has two recessed strips 78, which are respectively referred to as a first recessed strip 781 and a second recessed strip 781. The first concave strip 781 is disposed below the second concave strip 781 and corresponds to the first pocket row portion 601. The second concave strip 781 corresponds to the second pocket array portion 602. The structure of the concave strip 78 will be described in detail below by taking the first concave strip 781 as an example.

As shown in fig. 15, the first cavity row portion 601 includes a plurality of cavities 61 distributed in a row and a plurality of ribs 62 respectively disposed between two adjacent cavities 61. As shown in fig. 17, the well 61 is a hole extending toward the pot main body 10, and the inlet of the well 61 has a large size and gradually decreases in size as it extends toward the pot main body 10. Each of the ribs 62 is located between two adjacent pockets 61 and protrudes from the surface of the lateral side portion 31. The convex design of the ribs 62 and the concave design of the pockets 61 form a "concave-convex" design that increases the strength of the leather textured plastic sink 100 at the corresponding locations. That is, the first hole/groove row 601 can reinforce the strength of the cortical-texture plastic daily bowl 100 at a portion near the upper opening, and the second hole/groove row 602 can reinforce the strength of the cortical-texture plastic daily bowl 100 at a portion near the bottom.

As shown in fig. 15, it can be seen from the figure that, a plurality of inclined line grooves 621 forming an inclined angle with the length direction of the protruding strip 62 are arranged on the protruding strip 62, two adjacent inclined line grooves 621 are arranged in parallel, and the first section of each protruding strip 62 is arranged to the tail end of the protruding strip 62, so that when the surface of the protruding strip 62 is deformed by an external force, a deformation space can be provided for the daily basin by means of the inclined line grooves 621.

The first concave strip 781 corresponds to the first pocket row portion 601 and has an opposite structure. Specifically, the first concave strip 781 has a plurality of convex portions distributed in a row and a plurality of concave strips respectively disposed between two adjacent convex portions. The convex part corresponds to the cavity 61, and the concave strip corresponds to the convex strip 62. The concave strip is provided with a plurality of inclined convex strips which form an inclined angle with the length direction of the concave strip. The inclined protrusion corresponds to the inclined groove 621.

In order to further enhance the strength of the first pocket row portion 601, the first pocket row portion is designed to have a ring shape and to be parallel to the end surface of the inner and outer intersections 40, and the interval therebetween is 1.5mm to 10mm. The term "interval" as used herein means a distance from the center point of the cavity 61 in the longitudinal direction to the end surface of the inner/outer connecting portion 40, or a distance from the center point of the ridge 62 in the longitudinal direction to the end surface of the inner/outer connecting portion 40. The spacing is preferably 3-5mm. Accordingly, the first recessed band 781 is designed in a ring shape and is parallel to the outer top mold 722. The interval between the first recessed band 781 and the bottom of the cavity 73 is equal to the interval between the first pocket row portion 601 and the end surface of the inside-outside intersection portion 40.

In addition, in practical use, it is found that the dimension of the space between two adjacent cavities 61 in the first cavity row portion 601 also affects the strength of the daily basin 100 made of the leather-textured plastic, wherein the dimension of the space between two adjacent cavities 61 is set to be 2mm to 14mm, which is relatively significant in improving the strength of the daily basin, and preferably, the dimension of the space is set to be 4mm to 6.5 mm. Accordingly, the spacing between two adjacent raised portions of the first recessed band 781 is equal to the spacing between two adjacent pockets 61.

As shown in fig. 15, in order to further increase the strength of the cortical-textured plastic daily pot 100 in the vicinity of the upper opening, the inside and outside connection portions 40 are provided with the top and outside reinforcing ribs 41 protruding from the outside side portion 31, and the top and outside reinforcing ribs 41 are arranged around the entire placement space in a closed loop shape. And the cross-sectional shape of the top outer strengthening rib 41 is close to circular, so that the design can avoid cutting hand feeling for a user, and the circular top outer strengthening rib 41 can reduce deformation and increase strength when the daily basin is subjected to external forces at different angles. The outer top stiffener 41 is provided with a textured tactile area 50 (not shown). The inner surface of the outer peripheral mold 721, which is close to the bottom of the cavity 73, is provided with recesses corresponding to the outer reinforcement ribs 41, and the recesses are provided with textured concave-convex areas 77.

Similarly, in order to further enhance the strength of the second pocket row portion 602, it is also designed to be annular and parallel to the end surface of the outer transition portion 33, and spaced from each other by 1.5mm to 10mm, preferably 3-5mm. The outer transition portion 33 has outer base ribs 331 protruding from the outer side portion 31, and the outer base ribs 331 have texture sensing areas 50 (not shown). The bottom of the outer bead 331 is substantially flush with the outsole side portion 32 or slightly higher than the outsole side portion 32.

The inner surface of the outer peripheral mold 721 is provided with a concave portion corresponding to the outer reinforcement 41 at a position near the bottom of the cavity 73, and the concave portion is provided with a textured concave-convex area 77.

In addition, the outer transition portion 33 is also provided with a recessed slot 332. The concave slits 332 are provided between the outer bead 331 and the outsole side portion 32, and are formed in a circular shape and parallel to the outer bead 331. The recessed slot 332 is provided with a textured tactile area. The arrangement of the concave slot 332 also can provide a deformation space for the plastic daily basin by means of the concave slot 332 when the plastic daily basin is deformed due to external force.

As shown in fig. 10, the edge of the inner surface of the outer top mold 722 is further provided with a ring of embossed tape 7221, and the embossed tape 7221 corresponds to the depressed slit 332.

The tub inner 20 includes an inner edge portion 21, an inner bottom portion 22, and an inner transition portion 23 located between the inner edge portion 21 and the inner bottom portion 22, as an inner layer portion of the tub main body 10.

As shown in fig. 1 and 18, the bowl inner side portion 20 includes at least one texture haptic region 50 and at least one cavity row portion 60. In this embodiment, the texture haptic regions 50 are disposed throughout the inner pot side portion 20, and the texture haptic regions 50 have the same structure as the texture haptic regions 50 of the outer pot side portion 30, and may have the same or different specific style and style as the texture haptic regions 50 of the outer pot side portion 30. The bowl inner portion 20 includes a single row of wells 60, referred to as a third row of wells 603. The third pocket row portion 603 has the same structure as the first pocket row portion 601, and differs therefrom only in the installation position. A third pocket row 603 is provided on the inner side portion 21 adjacent the inner transition portion 23.

Similarly, in order to further enhance the effect of the third cavity row portion 603 in increasing the strength, it is also designed to be annular and parallel to the end surface of the inner transition portion 23, and the distance between the end surfaces is 1.5mm to 10mm. The inner transition portion 23 is provided with an inner bead 231 protruding from the inner bottom side portion 31 and the inner side portion 21, and the inner bead 231 is provided with a texture sensing zone 50 (not shown).

As shown in fig. 19, the inner surface of the inner film 71 includes a side surface portion 711, a top surface portion 712, and a connecting portion 713, and the connecting portion 713 is located between the side surface portion 711 and the top surface portion 712 and is connected to the side surface portion 711 and the top surface portion 712, respectively. The side portion 711 corresponds to the inner edge side portion 21, the top portion 712 corresponds to the inner bottom side portion 22, and the connecting portion 713 corresponds to the inner transition portion 23.

The inner surface of inner film 71 includes at least one textured relief area 77 and at least one recessed band 78. In this embodiment, the texture concave-convex area 77 (not shown) is disposed on the entire inner surface of the inner film 71, and the texture concave-convex area 77 corresponds to the texture tactile area 50 of the bowl inner side portion 20. The inner surface of inner membrane 71 contains a band of indentations 78, referred to as a third band of indentations 783. The third recessed band 783 is provided in the side surface portion 711 and is adjacent to the connecting portion 713, and the third recessed band 783 corresponds to the third hole/groove array portion 603. The connection portion 713 is provided with a concave portion corresponding to the inner bead 231, and the concave portion is provided with a textured concave-convex area 77.

The embodiment also provides a mold surface treatment method, which is used for treating the surface of the mold to be treated to obtain the mold 700 for the plastic daily necessities with the simulated cortical texture. The mold to be processed is an initial mold manufactured from the leather texture plastic daily basin 100, and the surface of the initial mold is flat.

The mold surface treatment method comprises the following steps:

in the first step, a predetermined region of the inner surface of the outer mold of the mold to be processed is laser engraved, thereby forming a texture concave-convex area 77 including a plurality of texture ridges and a plurality of texture valleys and a concave zone 78 including a plurality of convex portions distributed in a row and a plurality of concave bars respectively disposed between two adjacent convex portions. Wherein the location of the predetermined area is as described above.

And step two, carrying out sand blasting treatment on the plurality of convex parts and the plurality of concave strips to obtain a concave belt 78 containing a plurality of convex points.

In the first step, when laser engraving is carried out, the sparsity of the engraving textures of different parts in the preset area can be changed according to requirements. The sparser the texture carving is, the better the light reflecting effect of the leather texture plastic daily basin 100 finally obtained by injection molding is; the denser the texture engraving is, the better the light absorption effect of the leather texture plastic daily basin 100 obtained by final injection molding is.

In the second step, when sand blasting is carried out, mutual interference during sand blasting of different textures is avoided through a local shielding mode.

Effects and effects of the embodiments

According to the die for the simulated leather texture plastic daily necessities, the die comprises an inner film, an outer film, a feeding opening and a demolding cylinder, the outer film and the inner film surround to form a cavity matched with the whole or partial structure of the simulated leather texture plastic daily necessities, the feeding opening is communicated with the cavity, hot melt plastic is injected through an adding opening, after cooling forming, demolding is achieved through the demolding cylinder, and the whole or partial structure of the simulated leather texture plastic daily necessities can be obtained.

Furthermore, because the inner surface of the outer mold is provided with at least one texture concave-convex area and at least one concave belt, the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts, the concave belt comprises a plurality of convex parts distributed in rows and a plurality of concave strips respectively arranged between two adjacent convex parts, the whole or partial structure of the simulated leather texture plastic daily necessities formed by injection molding of the mold also at least comprises one texture touch area corresponding to the texture concave-convex area and at least one hole and groove row part corresponding to the concave belt, and the arrangement of the texture touch area and the hole and groove row part can increase the structural strength of the simulated leather texture plastic daily necessities and increase the anti-deformation capacity of the simulated leather texture plastic daily necessities. And the texture concave-convex area is arranged, so that the outer surface of the leather texture simulation plastic daily necessities can present a leather texture simulation effect, and the simulation effect is good.

Furthermore, the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts, so that the simulated leather texture plastic daily basin obtained by injection molding has a texture touch area comprising a plurality of texture concave strips and a plurality of texture convex parts, the surface roughness of the leather texture plastic daily basin can be increased, the friction force is increased, and the probability of hand drop and hand drop in the carrying process is reduced. Moreover, the design of the texture concave strips is equivalent to that a plurality of small Rong Biancao are arranged on the surface of the daily basin, when the daily basin is deformed due to external force, rong Biancao is extruded, the notch is reduced, elastic potential energy is accumulated (like the spring is pressed), and after the external force disappears, the daily basin is reset by virtue of the elasticity of the plastic; the design can increase the resetting capacity of the daily basin after deformation, thereby increasing the deformation resistance capacity and ensuring that the whole daily basin is softer and more flexible.

Furthermore, a plurality of texture concave strips and a plurality of texture bulges are combined to form a simulated texture similar to the leather, and the texture concave-convex area also comprises a plurality of convex points randomly distributed on the texture convex strips and the texture concave parts, so that the texture touch area of the simulated leather texture plastic daily basin obtained by injection molding further comprises a plurality of concave pits randomly distributed in the texture concave strips and the texture bulges, and the design of the concave pits can change the refractive index of the surface of the leather texture plastic daily basin to light rays, so that the light sensation of the surface of the leather texture plastic daily basin can be changed, and the visual effect of the leather texture product is further visually similar to that of the leather product.

Furthermore, because the inner surface of the outer die is provided with the concave part, the simulated leather texture plastic daily basin obtained by injection molding has corresponding reinforcing ribs, so that the strength of the corresponding part of the simulated leather texture plastic daily basin is improved.

Further, because the edge of the inner surface of the outer top die is also provided with a circle of convex belts, the plastic daily basin with the simulated leather textures obtained by injection molding further comprises concave slots corresponding to the convex belts, so that when the surface of the plastic daily basin is deformed due to external force, the plastic daily basin can be deformed by means of the concave slots, and accordingly a deformed space is provided for the plastic daily basin.

According to the method for processing the surface of the mold in the embodiment, the method comprises the first step of engraving the predetermined area of the inner surface of the outer mold of the mold to be processed by laser, so that the texture concave-convex area and the concave strip can be formed in the predetermined area of the mold, and further comprises the second step of performing sand blasting on the plurality of convex parts and the plurality of concave strips, so that the obtained concave strip of the mold comprises a plurality of convex points.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. A mould for simulating leather texture plastic daily necessities is used for obtaining the whole or partial structure of the simulated leather texture plastic daily necessities by injection molding, and is characterized by comprising the following components:

an inner membrane;

the outer die and the inner die surround to form a cavity matched with the whole or partial structure of the simulated leather texture plastic daily necessities;

the charging opening is arranged on at least one of the inner film and the outer film, communicated with the cavity and used for injecting hot-melt plastics into the cavity; and

the demoulding cylinder is used for driving the external mould and the internal membrane to be separated after the hot melt plastic in the cavity is solidified so as to realize demoulding,

wherein the inner surface of the outer die corresponds to the outer surface of the whole or partial structure of the simulated leather texture plastic daily necessities, the inner surface of the outer die is provided with at least one texture concave-convex area and at least one concave belt,

the texture concave-convex area comprises a plurality of texture convex strips and a plurality of texture concave parts,

the concave belt comprises a plurality of convex parts distributed in rows and a plurality of concave strips respectively arranged between two adjacent convex parts.

2. The mold for leather texture-simulated plastic daily necessities as claimed in claim 1, wherein:

wherein the leather texture-simulated plastic daily necessities are provided with reinforcing ribs protruding out of the outer surface of the leather texture-simulated plastic daily necessities,

and concave parts are arranged on the inner surface of the outer die and at positions corresponding to the reinforcing ribs.

3. The mold for leather texture-simulated plastic daily necessities as claimed in claim 2, wherein:

wherein the recesses have the textured relief areas.

4. The mold for leather texture-simulated plastic daily necessities as claimed in claim 1, wherein:

wherein, the interval between two adjacent convex parts in the concave belt is 2mm to 14mm.

5. The mold for leather texture-simulated plastic daily necessities as claimed in claim 1, wherein:

the concave strip is provided with a plurality of inclined convex strips which form an inclined angle with the length direction of the concave strip.

6. The mold for leather-texture-simulated plastic daily necessities as claimed in claim 1, wherein:

wherein the textured relief areas and the recessed bands of the inner surface of the outer mold are formed by laser engraving of the inner surface of the outer mold.

7. The mold for leather-texture-simulated plastic daily necessities as claimed in claim 1, wherein:

wherein the texture concave-convex area also comprises a plurality of convex points which are randomly distributed in the plurality of texture convex strips and the plurality of texture concave parts,

the bumps are formed by sand blasting on the texture ridges and the texture recesses.

8. The mold for plastic daily necessities with simulated cortical texture as claimed in claim 1, further comprising:

and the cooling water pipelines are arranged inside the inner film and the outer die and used for introducing cooling water and solidifying the hot-melt plastic in the cavity under the action of the cooling water.

9. A mold surface treatment method for treating the surface of a mold to be treated to obtain the mold for the simulated leather texture plastic daily necessities as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps:

step one, performing laser engraving on a preset area of the inner surface of the outer die of the die to be processed to form the texture concave-convex area containing a plurality of texture convex strips and texture concave parts and the concave belt containing a plurality of convex parts distributed in rows and a plurality of concave strips respectively arranged between two adjacent convex parts;

and secondly, carrying out sand blasting treatment on the plurality of convex parts and the plurality of concave strips to enable the concave strips to contain a plurality of convex points.

10. The mold surface treatment method according to claim 9, characterized in that:

wherein, in the first step, when the laser engraving is carried out, the sparsity of the engraving texture of different parts in the predetermined area can be changed,

and in the second step, when the sand blasting treatment is carried out, mutual interference during sand blasting of different textures is avoided through a local shielding mode.