CN109866369B - Integrated yoga hemisphere and preparation mold and method thereof - Google Patents
Integrated yoga hemisphere and preparation mold and method thereof Download PDFInfo
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- CN109866369B CN109866369B CN201910010783.4A CN201910010783A CN109866369B CN 109866369 B CN109866369 B CN 109866369B CN 201910010783 A CN201910010783 A CN 201910010783A CN 109866369 B CN109866369 B CN 109866369B
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Abstract
The invention discloses an integrated yoga hemisphere and a preparation mold and method thereof. The preparation mold comprises a spherical crown mold, a gasket and an upper cover, wherein the gasket is positioned between the mold and the upper cover; the spherical crown-shaped die cavity of the spherical crown die and the inner wall surface of the gasket form a continuous curved surface; the upper cover is sleeved and fixed above the gasket. When the integrated yoga hemisphere is manufactured, raw materials of the spherical crown part are injected into a spherical crown mold cavity of a mold, then a layer of thin film is fixed between the spherical crown mold cavity and a base mold cavity, the spherical crown mold cavity is isolated from the base mold cavity, and the raw materials of the base part are injected above the thin film; closing the upper cover of the mold, heating and rotating the mold, enabling the raw materials in the spherical crown mold cavity and the base mold cavity to respectively move towards the upper part of the mold wall, completely contacting the inner surface of the spherical crown mold cavity and the inner surface of the base mold cavity, fusing into uniform melt, and cooling to obtain the integrated hemisphere.
Description
Technical Field
The invention relates to fitness equipment, a preparation mold and a preparation method thereof, in particular to an integrated yoga hemisphere, a preparation mold and a preparation method thereof.
Background
Yoga hemisphere, also called BOSU Ball (BOSU Side Up), is a semi-circular balance Ball mainly composed of two parts, the upper half is a hemisphere and the lower half is a platform. Both sides (sphere and plane) of the yoga hemisphere can be trained for improving balance feeling and strengthening the core muscle group.
Chinese patent document CN202802690U (application No. CN 201220241150.8) discloses a yoga hemisphere, which is composed of a semicircular yoga ball, a bottom plate, a reinforcing rib, a non-slip pattern, a groove, a ball, a nine-grid box, a nine-grid cover, a buckle, a splint, a non-slip mat, a U-shaped buckle, a screw, and a pulling rope; the method is characterized in that: the upper surface of the bottom plate is sunken downwards, the lower surface of the bottom plate is a horizontal plane, the semicircular yoga ball buckle is arranged on the upper surface of the bottom plate, a groove is formed in the middle of the bottom plate, the ball is arranged in the nine-grid box, the nine-grid cover is covered on the nine-grid box, and the nine-grid cover and the nine-grid box are welded into a whole and are arranged in the groove. The bottom plate edge equidistance position is equipped with four splint, and four splint clip semicircle yoga ball around the spheroid, U type spiral shell dress is on splint, and the screw cover dress is detained at the U type, fastens through the nut, and the cable is detained at the U type through the couple hook.
Chinese patent document CN 203303585U (application No. 201320354520.3) discloses a yoga hemisphere, which comprises a hemisphere, wherein a plurality of anti-slip lines are arranged on the surface of the hemisphere in the circumferential direction; the hemisphere is buckled on the upper surface of a bottom plate and embedded in the bottom plate, and a plurality of fastening screws are arranged on the outer side of the whole body of the bottom plate to fasten and connect the hemisphere and the bottom plate; the front end and the rear end of the bottom plate are respectively provided with two clamping plates, the clamping plates and the bottom plate are of an integrated structure, the clamping plates are divided into an upper layer and a lower layer, and the middle parts of the clamping plates are provided with circular buckles; the center of the lower surface of the bottom plate is provided with an inflation hole, and after deflation, the hemispheroid can be compressed to a plane along the anti-slip lines; the upper surface of the bottom plate is provided with the functional area which has the functions of time display, timing and music broadcasting, so that people can enjoy music when practicing sports, thereby bringing convenience.
Chinese patent document CN 206867614U (application number CN 201720805716.8) discloses a wave velocity ball, which comprises a spherical surface and a base, wherein pull ropes are symmetrically arranged on the left and right sides of the base, the base comprises an upper base and a lower base, the spherical surface is of a semicircular structure, and a plurality of salient points are arranged on the outer side surface; the spherical surface bottom edge is provided with the turn-ups, and even symmetry is provided with a plurality of fixed orificess on the turn-ups, go up the base and be circular-arc frame structure, it is provided with annular base to go up the base, be provided with the fixed column on the annular base, the spherical surface is installed on last base through the fixed orifices on its turn-ups and fixed column cooperation, the base is discoid structure down, and the side of base is provided with the fixed set post with fixed column complex down, bilateral symmetry sets up the hasp mounting hole on the base down, installs the hasp on the hasp mounting hole, the base passes the lockhole locking upper base of upper base through the hasp down.
In the yoga hemispheres disclosed in the above documents and all yoga hemispheres on the market, the crown portion (i.e., the ball portion described herein) and the base portion are fixedly connected by a connecting member. From the machining point of view, the spherical cap part and the base part are respectively obtained, and then the assembly and the fixation are completed through the connecting piece.
The prior art has not proposed a yoga hemisphere in the form of a rotational molding integrated piece, and has not disclosed a processing mold and a processing method of the integrated yoga hemisphere.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated yoga hemisphere which is formed by one-step processing, a preparation mold and a preparation method thereof.
The technical scheme for realizing the first purpose of the invention is that the yoga hemisphere is molded into a whole by rotational molding, and the lower end surface of the spherical crown part is matched with the upper end surface of the base and is fixedly welded.
The rotational molding raw material of the spherical crown part comprises the following components in parts: 90-100 parts of polyvinyl chloride paste resin, 45-55 parts of plasticizer, 3.5-4.5 parts of viscosity reducer and 1-3 parts of stabilizer.
The rotational molding raw material of the base comprises the following components in parts: 180-220 parts of polyvinyl chloride paste resin, 35-45 parts of plasticizer, 14-18 parts of viscosity reducer and 1-3 parts of stabilizer.
In the rotational molding raw material of the spherical cap part, the plasticizer is epoxidized soybean oil and one or more of TBC and DOTP; the viscosity reducer is one of PVC viscosity reducer D-80 and TXIB; the stabilizer is a liquid calcium zinc stabilizer.
In the rotational molding raw material of the base, the plasticizer is epoxidized soybean oil and one or more of ATBC, DNCH, TBC and DOTP; the viscosity reducer is one or two of PVC viscosity reducer D-80 and TXIB; the stabilizer is a liquid calcium zinc stabilizer.
The technical scheme for realizing the second purpose of the invention is that the integrated yoga hemisphere preparation mold comprises a spherical crown mold, a gasket and an upper cover, wherein the gasket is positioned between the mold and the upper cover; the interior of the spherical crown mould is a spherical crown mould cavity; the gasket is sleeved and fixed above the spherical crown mold, and a spherical crown-shaped mold cavity of the spherical crown mold and the inner wall surface of the gasket form a continuous curved surface; the upper cover is sleeved and fixed above the gasket; when in use, a layer of film is fixed between the spherical crown mould and the gasket and is divided into two closed cavities.
The opening of the spherical crown-shaped die cavity is upward, and an anti-skid pattern groove is formed downwards from the surface of the spherical crown-shaped die cavity.
The spherical crown mould comprises a support and a main body, and the main body is supported by the support; the outer peripheral surface of the main body close to the top surface is provided with a circle of annular boss to form a mounting table, the gasket is placed on the annular boss, and the part above the annular boss of the main body is sleeved inside the gasket.
The gasket comprises an inner ring and an outer ring which are coaxial; the lower end face of the inner ring is positioned above the lower end face of the outer ring, so that the lower end face of the inner ring, the lower end face of the outer ring and the annular wall face of the outer ring positioned between the two lower end faces form an annular mounting part, and the annular mounting part accommodates a part above the annular boss of the main body; the upper end face of the inner ring is located below the upper end face of the outer ring, so that a step is formed on the upper end face of the inner ring, the upper end face of the outer ring and the annular wall face of the outer ring located between the two lower end faces, and the height of the step is set according to the thickness of the chassis of the yoga hemisphere.
The top of the periphery of the gasket is provided with a ring-shaped upper cover mounting table for positioning and fixing the upper cover when the upper cover is sleeved above the gasket.
The upper cover includes the disc main part, has set up the border in the periphery of disc main part, and the border suit is outside at the upper cover mount table of packing ring.
The technical scheme for realizing the third purpose of the invention is a preparation method of an integrated yoga hemisphere, which comprises the following steps:
firstly, preparing materials; respectively preparing rotational molding raw materials of the spherical crown part and the base.
Charging; pouring rotational molding raw materials of the spherical crown part into a spherical crown mold, cutting a film, wherein the diameter of the film is larger than the outer diameter of the gasket, flatly laying the film on the top of the spherical crown mold, sleeving and fixing the gasket above the spherical crown mold, and straightening and fixing the film; the rotational moulding material of the base part is poured over the film and then the upper cover is closed.
Thirdly, fixing the mold in a rotary heating furnace, heating and rotating the rotary heating furnace, and starting rotational molding.
And fourthly, after the rotational molding is finished, discharging the mold, cooling the mold, opening the mold, and taking out the finished product.
And step three, in the rotational molding process, the upper end surface of the spherical crown part, the film and the lower end surface of the base are welded.
The invention has the positive effects that:
(1) when the integrated yoga hemisphere is manufactured, raw materials of a spherical crown part of the yoga hemisphere are injected into a spherical crown-shaped mold cavity of a mold, then a layer of thin film is fixed between the spherical crown-shaped mold cavity and a base mold cavity, the spherical crown-shaped mold cavity is isolated from the base mold cavity, and the raw materials of the base part are injected above the thin film; the upper cover of the mold is closed and fixed, the mold is heated and continuously subjected to biaxial rotation, the raw materials in the spherical crown mold cavity and the base mold cavity respectively move towards the upper part of the mold wall, are completely contacted with the inner surface of the spherical crown mold cavity and the inner surface of the base mold cavity, are sintered into uniform melt, and the integrated hemisphere is obtained after cooling.
(2) The spherical crown part of the yoga hemisphere needs to be soft and elastic, and the base part needs to have hardness, so that the yoga hemisphere needs to be manufactured by using different and mutually-fused raw material formulas. The traditional rotational molding process can only produce products with one color and one hardness formula in one mold. The mold disclosed by the invention overcomes the difficulty in the process, and realizes one-time rotational molding of the yoga hemisphere by two raw materials; the one-step integrally formed hemisphere is more attractive, the manufacturing cost is greatly reduced, and meanwhile, the weight is reduced, and the carrying is convenient.
Drawings
Fig. 1 is a front view of a mold for manufacturing an integrated yoga hemisphere according to the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is an assembly schematic view of the preparation mold of the integrated yoga hemisphere of the invention.
Fig. 4 is a perspective view of the gasket.
Fig. 5 is a schematic structural view of an integrated yoga hemisphere.
Fig. 6 is a schematic bottom view of the yoga hemisphere of fig. 5.
The reference numbers in the above figures are as follows:
the spherical cap part 1, the anti-skid grains 11, the base 2, the connecting ring 21, the chassis 22, the flange 22-1, the foot pad 23 and the anti-skid grains 24;
the spherical cap mold comprises a spherical cap mold 3, a support 30, a main body 31, a spherical cap-shaped mold cavity 32, an anti-skid pattern groove 33 and a mounting table 34;
a gasket 4, an inner ring 41, an outer ring 42, a mounting part 43, a step 44 and an upper cover mounting table 45;
the upper cover 5, the foot pad mold cavity 51, the anti-skid groove 52 and the edge 53.
Detailed Description
(example 1, Integrated yoga hemisphere)
Referring to fig. 5 and 6, the integrated yoga hemisphere rotational moulding of the invention is integrally formed, and comprises a spherical crown part 1 and a base 2, wherein the spherical crown part 1 is soft and elastic, and the hardness is below SG 4; the base 2 is hard and has a supporting function, and the hardness is above SG 5. In this embodiment, the material of the spherical cap portion 1 is soft PVC, and the material of the base 2 is hard PVC.
The base 2 comprises a connecting ring 21 and a bottom plate 22, and the lower end surface of the spherical cap part 1 is matched with the upper end surface of the connecting ring 21 and is welded, so that the spherical cap part 1 and the base 2 are welded and fixed to form a plastic integrated piece.
The rotational molding raw material of the spherical cap part 1 comprises the following components in parts: 90-100 parts of polyvinyl chloride paste resin, 45-55 parts of plasticizer, 3.5-4.5 parts of viscosity reducer and 1-3 parts of stabilizer.
The polyvinyl chloride paste resin can be used, but is not limited to, polyvinyl chloride paste resin TPH-31, polyvinyl chloride paste resin PB-1302.
The plasticizer is one or more of epoxidized soybean oil, TBC (tri-n-butyl citrate), DOTP (dioctyl terephthalate).
The viscosity reducer is one of PVC viscosity reducer D-80 and TXIB (2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate).
The stabilizer is a liquid calcium zinc stabilizer.
The rotational molding raw material of the spherical cap part 1 of this example contains the following components in parts: 93.9 parts of polyvinyl chloride paste resin, 38.5 parts of plasticizer TBC, 6.85 parts of plasticizer DOTP, 5.1 parts of epoxidized soybean oil, D-804.05 parts of viscosity reducer and 1.65 parts of liquid calcium zinc stabilizer.
The rotational molding raw material of the base 2 comprises the following components in parts: 180-220 parts of polyvinyl chloride paste resin, 35-45 parts of plasticizer, 14-18 parts of viscosity reducer and 1-3 parts of stabilizer.
The plasticizer is epoxidized soybean oil and one or more of ATBC, DNCH, TBC and DOTP.
The viscosity reducer is one or two of PVC viscosity reducer D-80 and TXIB (2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate).
The stabilizer is a liquid calcium zinc stabilizer.
The rotational moulding raw material of the base 2 of this example comprises the following components in parts: 192 parts of polyvinyl chloride paste resin, 32 parts of plasticizer TBC, 8 parts of epoxidized soybean oil, 5.25 parts of viscosity reducer D-8010.75, and 2 parts of liquid calcium zinc stabilizer.
The spherical crown part 1 is provided with convex anti-skid lines 11, and besides the anti-skid lines, the anti-skid and massage effects can also be achieved by arranging densely arranged bulges.
The connecting ring 21 and the chassis 22 are made of the same material, and the connecting ring 21 is arranged above the chassis 22 and is positioned between the spherical crown part 1 and the chassis 22. The connecting ring 21 is a closed ring, and the outer diameter of the upper end surface of the connecting ring 21 is the same as the outer diameter of the bottom circular surface of the spherical cap portion 1.
The lower end surface of the connection ring 21 is placed on the bottom plate 22, and the outer diameter of the bottom plate 22 is larger than the outer diameter of the lower end surface of the connection ring 21, and the portion of the bottom plate 22 beyond the connection ring 21 is referred to as a flange 22-1.
The outer side surface of the chassis 22 is provided with a foot pad 23 and an anti-slip pattern 24. The foot pads 23 play a role in supporting and preventing slipping, are arranged on the outer side surface of the chassis 22 at equal intervals along the circumferential direction, and can be cylindrical foot pads as shown in fig. 5, kidney cylindrical foot pads or foot pads in any other shapes.
The non-slip pattern 24 covers the stance portion of the feet and may have other shapes than the foot shape shown in the drawings.
Example 2 preparation of mold
Referring to fig. 1 to 3, in order to prepare the integrated yoga hemisphere with the above structure, the preparation mold of the present embodiment includes a spherical crown mold 3, a gasket 4 and an upper cover 5, wherein the gasket 4 is located between the mold 3 and the upper cover 5.
The spherical cap mould 3 comprises a seat 30 and a body 31 supported by the seat 31, so that the assembled mould is also supported by the seat 31.
The inner cavity of the main body 31 is in a spherical crown shape with an upward opening, namely, the inner part of the main body 31 is a spherical crown-shaped die cavity 32, an anti-skid pattern groove 33 is opened downwards from the surface of the spherical crown-shaped die cavity 32, and the notch of the anti-skid pattern groove 33 is upward. The shape of the antiskid line groove 33 is designed correspondingly according to the pattern of the antiskid lines on the surface of the yoga hemisphere.
A mounting table 34 is provided above the main body 31, and the mounting table 34 is used for positioning and fixing connection with the upper gasket 4. The mounting table 34 is provided with a ring-shaped boss on the outer peripheral surface of the main body 31 near the top surface, so that the gasket 4 can be placed on the ring-shaped boss, and the gasket 4 covers the part above the ring-shaped boss of the main body 31.
Referring to fig. 3 and 4, the gasket 4 includes an inner ring 41 and an outer ring 42 which are coaxial, and an outer circumferential surface of the inner ring 41 is completely attached and fixed to an inner wall surface of the outer ring 42.
The height of the inner ring 41 is lower than that of the outer ring 42, and the lower end surface of the inner ring 41 is located above the lower end surface of the outer ring 42, so that the lower end surface of the inner ring 41, the lower end surface of the outer ring 42, and the annular wall surface of the outer ring 42 between the two lower end surfaces form an annular mounting portion 43. The annular mounting portion 43 is fitted over the mounting table 34 on the top of the main body 31 of the spherical cap mold 3, the annular mounting portion 43 accommodates the portion above the annular boss of the main body 31, and the spherical cap cavity 32 and the inner wall surface of the inner ring 41 form a continuous curved surface (see fig. 1), and in this embodiment, the spherical cap cavity 32 and the inner wall surface of the inner ring 41 form one spherical cap cavity.
The upper end surface of the inner ring 41 is located below the upper end surface of the outer ring 42, so that the upper end surface of the inner ring 41, the upper end surface of the outer ring 42 and the annular wall surface of the outer ring 42 located between the two lower end surfaces form a step 44, and the height of the step 44 is set according to the thickness of the yoga hemisphere chassis 22.
A ring-shaped upper cover mounting table 45 is arranged at the top of the periphery of the gasket 4 and used for positioning and fixing the upper cover 5 when being sleeved on the gasket 4.
Referring to fig. 3, the upper cover 5 includes a disc-shaped body, a rim 53 is formed on an outer circumference of the disc-shaped body, the rim 53 is fitted around the outer portion of the upper cover mounting table 45 of the gasket 4, and an inner diameter of the rim 53 is the same as an outer diameter of the upper cover mounting table 45.
The disc-shaped main body of the upper cover 5 is also provided with a foot pad die cavity 51 and an anti-skid groove 52, the foot pad die cavity 51 is arranged on the disc-shaped main body along the circumferential direction, and the opening of the foot pad die cavity 51 faces the spherical crown-shaped die cavity 32. The opening of the anti-skid groove 52 is also directed towards the spherical cap shaped mould cavity 32.
When the preparation mould of this embodiment is assembled, the packing ring 4 suit is at the top of spherical crown mould 3, and upper cover 5 suit is at the top of packing ring 4, forms an inclosed cavity. Wherein, spherical crown shape die cavity 32 of spherical crown mould 3 is used for the spherical crown part 1 of shaping yoga hemisphere, and packing ring 4 and upper cover 5 are used for the base 2 of shaping yoga hemisphere, and supporting the isolating film that uses when the mould uses, the isolating film is placed between spherical crown mould 3 and packing ring 4.
As a further design, the step 44 of the washer 4 may be symmetrically provided with a bump, so that after the hemisphere is rotationally molded, a notch is formed on the chassis 22 corresponding to the bump, and a pull rope buckle is formed at the notch.
Example 3 preparation method
This embodiment uses the preparation mould of embodiment 1 to prepare integrative yoga hemisphere, includes following step:
firstly, preparing materials.
The hardness of the spherical crown part 1 and the hardness of the base 2 of the yoga hemisphere are different, and rotational molding raw materials of the spherical crown part 1 and rotational molding raw materials of the base 2 are respectively prepared. The formulation of the rotomoulding material for the spherical cap part 1 and the base 2 is given in the following table.
When preparing the rotational molding raw material of the spherical crown part, the components weighed according to the above table are added into a mixing tank, stirred for 1 hour, vacuumized for 4 hours, then color paste (7.5 g of white paste and 0.25g of color paste are added in the embodiment) is added according to the designed color of the product, stirred for 1 hour, and vacuumized for 0.5 hour, so as to obtain the rotational molding raw material of the spherical crown part for standby.
When preparing the rotational molding raw material of the base, the components weighed according to the above table are added into a mixing tank, stirred for 1 hour, vacuumized for 4 hours, then color paste (3.75 g of white paste and 0.08g of color paste are added in the embodiment) is added according to the designed color of the product, stirred for 1 hour, and vacuumized for 0.5 hour to obtain the rotational molding raw material of the base for later use.
② charging. The rotational moulding raw material of the spherical cap part is poured into the spherical cap mould 3. Cutting a PVC film, wherein the diameter of the PVC film is larger than the outer diameter of the gasket 4, flatly laying the PVC film on the top of the spherical crown mold 3, sleeving and fixing the gasket 4 above the spherical crown mold 3, and straightening and fixing the PVC film. The composition of the PVC film used in this example was the same as that of the spherical cap portion.
The base portion of the rotomoulding material is poured over the film and the upper lid 5 is then closed.
Thirdly, fixing the mold in a rotary heating furnace, heating the rotary heating furnace, setting the temperature to be 332 ℃, rotating speed to be 1100rpm, starting rotational molding, and the rotational molding time to be 14 minutes. The temperature and the rotating speed are set according to different material adaptability.
And fourthly, after the rotational molding is finished, discharging the mold, putting the mold into a water pool, immersing for 25 seconds, repeatedly cooling for two times, keeping the water temperature in the pool lower than 50 ℃, opening the mold after waiting for 5 minutes and 30 seconds, and taking out the finished product.
Assembling accessories, and inspecting and packaging products.
When this embodiment preparation yoga hemisphere, the rotational moulding raw materials of spherical crown part 1 and the rotational moulding raw materials of base 2 are separated by the film, and at the rotational moulding in-process, the butt fusion between the up end of spherical crown part 1, the lower terminal surface of film and base 2, once rotational moulding shaping obtains yoga hemisphere integrative piece.
Since the film is arranged between the spherical cap mold 3 and the washer 4, the spherical cap portion 1 obtained in the spherical cap mold 3 is of soft PVC material, and the seat 2 obtained in the cavity between the film, the washer 4 and the upper cover is of rigid PVC material. The inner ring 41 part of the gasket 4 is demoulded to correspondingly obtain the connecting ring 21 of the yoga hemisphere, and the upper part of the inner ring is demoulded to correspondingly obtain the chassis 22 of the yoga hemisphere.
Claims (9)
1. An integrative yoga hemisphere which characterized in that: the integrated yoga hemisphere is integrally molded by rotational molding, the lower end face of the spherical crown part is matched with the upper end face of the base and is welded and fixed, and when the integrated yoga hemisphere is manufactured, raw materials of the spherical crown part are injected into a spherical crown-shaped cavity of a spherical crown mold in the mold; laying a layer of film on the top of the spherical cap mould, and fixing a gasket in the mould above the spherical cap mould in a sleeving manner, so that the spherical cap mould cavity is isolated from a base mould cavity in the mould; injecting the feedstock of the base over the thin film; closing and fixing the upper cover of the mould, heating the mould and enabling the mould to continuously perform biaxial rotation, wherein the raw materials in the spherical crown-shaped mould cavity and the base mould cavity respectively move towards the upper part of the mould wall, are completely contacted with the inner surface of the spherical crown-shaped mould cavity and the inner surface of the base mould cavity and are fused into uniform melt, and the integrated yoga hemisphere is obtained after cooling,
wherein the spherical cap mould comprises a support and a main body, the main body is supported by the support (30), and the gasket comprises an inner ring and an outer ring which are coaxial; and is
The lower end face of the inner ring is positioned above the lower end face of the outer ring, so that the lower end face of the inner ring, the lower end face of the outer ring and the annular wall face of the outer ring positioned between the two lower end faces form an annular mounting part, and the annular mounting part accommodates a part above the annular boss of the main body; the upper end surface of the inner ring is positioned below the upper end surface of the outer ring, so that the upper end surface of the inner ring, the upper end surface of the outer ring and the annular wall surface form a step, and the height of the step is set according to the thickness of the chassis of the integrated yoga hemisphere; and the top of the periphery of the gasket is provided with a ring of annular upper cover mounting platforms for positioning and fixing the upper cover when the upper cover is sleeved above the gasket.
2. The integrated yoga hemisphere of claim 1, wherein: the rotational molding raw material of the spherical crown part comprises the following components in parts: 90-100 parts of polyvinyl chloride paste resin, 45-55 parts of plasticizer, 3.5-4.5 parts of viscosity reducer and 1-3 parts of stabilizer; the rotational molding raw material of the base comprises the following components in parts: 180-220 parts of polyvinyl chloride paste resin, 35-45 parts of plasticizer, 14-18 parts of viscosity reducer and 1-3 parts of stabilizer.
3. The integrated yoga hemisphere of claim 2, wherein: in the rotational molding raw material of the spherical cap part, a plasticizer is epoxidized soybean oil and one or more of TBC and DOTP; the viscosity reducer is one of PVC viscosity reducer D-80 and TXIB; the stabilizer is a liquid calcium zinc stabilizer.
4. The integrated yoga hemisphere of claim 2, wherein: in the rotational molding raw material of the base, the plasticizer is epoxidized soybean oil and one or more of ATBC, DNCH, TBC and DOTP; the viscosity reducer is one or two of PVC viscosity reducer D-80 and TXIB; the stabilizer is a liquid calcium zinc stabilizer.
5. The utility model provides a preparation mould of an organic whole yoga hemisphere which characterized in that: the spherical cap mold comprises a spherical cap mold (3), a gasket (4) and an upper cover (5), wherein the gasket (4) is positioned between the spherical cap mold (3) and the upper cover (5); the interior of the spherical crown mould (3) is a spherical crown mould cavity (32); the gasket (4) is sleeved and fixed above the spherical crown mold (3), and the spherical crown mold cavity (32) of the spherical crown mold (3) and the inner wall surface of the gasket (4) form a continuous curved surface; the upper cover (5) is sleeved and fixed above the gasket (4); when in use, a layer of film is fixed between the spherical crown mould (3) and the gasket (4) and is divided into a closed spherical crown mould cavity (32) and a closed base mould cavity,
wherein the spherical cap mold (3) comprises a seat (30) and a body (31) supported by the seat (30), and
wherein the gasket (4) comprises an inner ring (41) and an outer ring (42) which are coaxial; the lower end face of the inner ring (41) is positioned above the lower end face of the outer ring (42), so that the lower end face of the inner ring (41), the lower end face of the outer ring (42) and the annular wall face of the outer ring (42) between the two lower end faces form an annular mounting part (43), and the annular mounting part (43) accommodates a part above the annular boss of the main body (31); the upper end face of the inner ring (41) is positioned below the upper end face of the outer ring (42), so that the upper end face of the inner ring (41), the upper end face of the outer ring (42) and the annular wall face form a step (44), and the height of the step (44) is set according to the thickness of the chassis (22) of the integrated yoga hemisphere; the top of the periphery of the gasket (4) is provided with a ring of annular upper cover mounting platforms (45) for positioning and fixing the upper cover (5) when being sleeved on the gasket (4).
6. The mold for manufacturing yoga hemispheres according to claim 5, wherein: the opening of the spherical crown-shaped die cavity (32) is upward, and an anti-skid pattern groove (33) is formed downwards from the surface of the spherical crown-shaped die cavity (32); the annular boss is arranged on the outer peripheral surface, close to the top surface, of the main body (31) to form an installation platform (34), the gasket (4) is placed on the annular boss, and the part, above the annular boss, of the main body (31) is sleeved inside the gasket (4).
7. The mold for manufacturing yoga hemispheres according to claim 5, wherein: the upper cover (5) comprises a disc-shaped main body, an edge (53) is arranged on the periphery of the disc-shaped main body, and the edge (53) is sleeved on the outer portion of the upper cover mounting table (45) of the gasket (4).
8. The method for preparing yoga hemisphere with mold according to claim 5, wherein the method comprises the following steps: firstly, preparing materials; respectively preparing rotational molding raw materials of the spherical crown part (1) and the base (2); charging; pouring rotational molding raw materials of the spherical crown part (1) into the spherical crown mold (3), cutting a film, wherein the diameter of the film is larger than the outer diameter of the gasket (4), flatly laying the film on the top of the spherical crown mold (3), sleeving and fixing the gasket (4) above the spherical crown mold (3), and straightening and fixing the film; pouring the rotational molding raw material of the base (2) above the film, and then closing the upper cover (5); fixing the preparation mold in a rotary heating furnace, heating and rotating the rotary heating furnace, and starting rotational molding; and fourthly, after the rotational molding is finished, discharging the preparation mold, cooling the preparation mold, opening the preparation mold, and taking out the finished product.
9. The method of claim 8, wherein the yoga hemisphere comprises: and step three, in the rotational molding process, the upper end surface of the spherical crown part (1), the film and the lower end surface of the base (2) are welded.
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| CN201910010783.4A CN109866369B (en) | 2019-01-07 | 2019-01-07 | Integrated yoga hemisphere and preparation mold and method thereof |
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| CN201910010783.4A CN109866369B (en) | 2019-01-07 | 2019-01-07 | Integrated yoga hemisphere and preparation mold and method thereof |
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| CN109866369B true CN109866369B (en) | 2021-02-09 |
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| CN110743131A (en) * | 2019-12-10 | 2020-02-04 | 深圳市赛昂贸易有限公司 | Kettle bell and manufacturing method thereof |
| CN113136896A (en) * | 2021-05-13 | 2021-07-20 | 孙晶 | Intelligent well lid and manufacturing method thereof |
| CN113198151A (en) * | 2021-06-11 | 2021-08-03 | 滁州恒佳体育用品有限公司 | Multipurpose PVC ball and production method thereof |
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| JPS59164643A (en) * | 1983-03-11 | 1984-09-17 | Otani Denki Seisakusho:Kk | Production of globe for illuminator and the like |
| US5529481A (en) * | 1995-02-09 | 1996-06-25 | The Kelch Corporation | Rotational mold having a divider ring between facing edges of two separable mold shells |
| GB201105199D0 (en) * | 2011-03-28 | 2011-05-11 | Leafield Environmental Ltd | Method of making a rotationally moulded article |
| EP2505345A1 (en) * | 2011-03-31 | 2012-10-03 | ESSILOR INTERNATIONAL (Compagnie Générale d'Optique) | Method for designing a mould for casting a semi-finished ophthalmic lens blank, method for assembling a mould assembly, method for casting a semi-finished ophtalmic lens blank and computer program product for carrying out said methods |
| US9474939B2 (en) * | 2011-12-27 | 2016-10-25 | Nike, Inc. | System and method for making a golf ball with one or more patterned film layers |
| CN102717458A (en) * | 2012-07-14 | 2012-10-10 | 江苏通全球工程管业有限公司 | Septic tank die |
| CN103753815A (en) * | 2014-01-28 | 2014-04-30 | 上海民欢健身器材制造有限公司 | Soft and hard material combination integral-molding device and manufacturing method for same |
| CN203937083U (en) * | 2014-06-27 | 2014-11-12 | 大连船舶重工集团有限公司 | A kind of mouth of pipe fast cap using during for pipe fitting inner wall plastic-coated |
| US9700756B2 (en) * | 2015-05-07 | 2017-07-11 | Therrex Innovations, Llc | Balance board for exercise and physical therapy |
| US9802340B1 (en) * | 2016-09-12 | 2017-10-31 | Kenneth S. Anderson | Method and fixture for molding a tank with an embedded ring |
| CN106827338B (en) * | 2017-01-21 | 2018-12-11 | 何倩倩 | A kind of rotational moulding platform |
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