CN102896976B - Child cart wheel and blow-molded wheel core and externally rubber-coated manufacturing process thereof - Google Patents
Child cart wheel and blow-molded wheel core and externally rubber-coated manufacturing process thereof Download PDFInfo
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- CN102896976B CN102896976B CN201210394825.7A CN201210394825A CN102896976B CN 102896976 B CN102896976 B CN 102896976B CN 201210394825 A CN201210394825 A CN 201210394825A CN 102896976 B CN102896976 B CN 102896976B
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- lining ring
- encapsulate
- rubber
- wheel
- melt temperature
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Abstract
The invention relates to a blow-molded wheel core and externally rubber-coated manufacturing process of a child cart wheel. The child cart wheel comprises a rubber-coated lining ring and an externally rubber-coated layer coated outside the rubber-coated lining ring, wherein a blow-molded wheel core is blow-molded on an inner ring of the rubber-coated lining ring; and the melting temperature of the rubber-coated lining ring is higher than that of the externally rubber-coated layer. A blow-molded wheel core and externally rubber-coated manufacturing process comprises the following steps of: manufacturing the rubber-coated lining ring by using a material with the melting temperature of 195 to 205 DEG C; accurately arranging and positioning the manufactured rubber-coated lining ring in a rubber coating die, injecting a thermoplastic rubber elastic material of which the melting temperature is lower than that of the material for manufacturing the rubber-coated lining ring, preserving heat, performing vulcanization molding, forming the externally rubber-coated layer outside the rubber-coated lining ring, and forming a wheel outer tire by using the rubber-coated lining ring and the externally rubber-coated layer; and accurately arranging and positioning the manufactured wheel outer tire in a blow molding die, and manufacturing the blow-molded wheel core in the rubber-coated lining ring by a blow molding method to form a blow-molded wheel core and externally rubber-coated tire.
Description
Technical field
The present invention relates to a kind of blowing core wheel external coated rubber manufacture craft of Wheel of children cart.
Background technology
The tire that current carriage for children uses roughly has three classes: the plastic foamed tire of rubber tire, EVA and blowing hollow tire etc.Various product roughly situation is as follows: rubber tire (inflate or do not inflate) in-use performance is relatively good, but due to manufacturing process more complicated, usually manufacture according to standardized specifications and models specialty, style is few, can not adapt to the style change requirement of carriage for children, price is also somewhat expensive simultaneously; Though EVA foaming tire low price but in-use performance are not as rubber tire, tire matter is soft and elasticity not enough, wears no resistance; Blowing hollow wheel material is partially hard, and adherence properties is poor, and tire matter flexibility and elasticity are all not as EVA foaming wheel, but technique is simple, and low price, can adapt to carriage for children style and change fast requirement.
Summary of the invention
The object of the present invention is to provide and a kind ofly can produce the blowing core wheel external coated rubber manufacture craft of function admirable, fashionable in style Wheel of children cart by lower cost.
For reaching goal of the invention the technical solution used in the present invention be:
A kind of Wheel of children cart, is characterized in that: comprise encapsulate lining ring, the encapsulate outsourcing glue-line outside encapsulate lining ring, the inner ring blowing of described encapsulate lining ring has blowing core wheel, and the melt temperature of described encapsulate lining ring is higher than the melt temperature of described outsourcing glue-line.
Further, the surfaces externally and internally of described encapsulate lining ring is equipped with anti-slip veins.
Further, described outsourcing glue-line is made up of the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring.Preferred thermoplastic rubber elastomeric material is TPR elastomeric material.
Further, the melt temperature scope of the making material of described encapsulate lining ring is 195 DEG C ~ 205 DEG C.The making material of preferred encapsulate lining ring is polyethylene, and its melt temperature is 200 DEG C.
Further, the melt temperature of described encapsulate lining ring is higher than the melt temperature of described outsourcing glue-line 25 DEG C.
The blowing core wheel external coated rubber manufacture craft of foregoing invention, its step is as follows:
(1) melt temperature is adopted to make encapsulate lining ring at the material of 195 DEG C ~ 205 DEG C of scopes;
(2) the encapsulate lining ring made accurately is installed location in encapsulation die, inject the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring, and through insulation vulcanization forming, form external coated rubber layer outward at encapsulate lining ring, described encapsulate lining ring forms car wheel covering together with outsourcing glue-line;
(3) car wheel covering made accurately is installed location in blow mold, in encapsulate lining ring, make blowing core wheel with blow moiding method, form blowing core wheel external coated rubber tire.
Further, the melt temperature of described thermoplastic rubber elastomeric material is lower 25 DEG C than the melt temperature of the material making encapsulate lining ring.
Further, the surfaces externally and internally of the encapsulate lining ring made in step (1) is equipped with anti-slip veins.
The making material of encapsulate lining ring of the present invention must have comparatively high melting temperature, generally at least high than the melt temperature of thermoplastic rubber elastomeric material about 25 DEG C.In order to ensure product design, accurately must control the melt temperature of material, usually can add a certain proportion of calcium carbonate in making material, carrying out suitable modification.Encapsulate lining ring must make anti-slip veins at surfaces externally and internally, increases the binding strength with outsourcing glue-line and blowing core wheel; Because in mould during encapsulate, temperature is higher, shaping encapsulate lining ring easily softens, in order to ensure the process ruggedness of encapsulate lining ring, except by the outside face of encapsulate, encapsulate lining ring accurately will install location in encapsulation die, prevent distortion impaired, designing suitable anti-slip veins can play reinforced rib simultaneously.Need technological temperature when accurately controlling encapsulate, injection molding pressure, protect the mould time, Controlling Technology temperature and injection molding pressure be in order to allow thermoplastic rubber elastomeric material can in die cavity smooth flow filling, and guarantee not make encapsulate lining ring softening or be out of shape impaired; Controlling to protect the mould time is to ensure product vulcanized quality.Make blowing core wheel shaping outer being surrounded by the encapsulate lining ring of external coated rubber layer with blow moiding method, select pressurized air that blowing core wheel and outsourcing glue-line are combined closely.
Beneficial effect of the present invention: the various fashionable in style Wheel of children cart of function admirable can be produced by lower cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram one of Wheel of children cart of the present invention.
Fig. 2 is I place enlarged drawing in Fig. 1.
Fig. 3 is the schematic diagram two of Wheel of children cart of the present invention.
Fig. 4 be in Fig. 3 A-A to cutaway view.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described, but does not limit the invention to these detailed description of the invention.One skilled in the art would recognize that all alternativess, improvement project and the equivalents that present invention encompasses and may comprise in Claims scope.
Embodiment one
With reference to Fig. 1-4, a kind of Wheel of children cart, comprise encapsulate lining ring 2, the encapsulate outsourcing glue-line 1 outside encapsulate lining ring 2, the inner ring blowing of described encapsulate lining ring 2 has blowing core wheel 3, and the melt temperature of described encapsulate lining ring 2 is higher than the melt temperature of described outsourcing glue-line 1.
The surfaces externally and internally of described encapsulate lining ring 2 is equipped with anti-slip veins.Encapsulate lining ring 2 must make anti-slip veins at surfaces externally and internally, increases the binding strength with outsourcing glue-line 1 and blowing core wheel 3; Because in mould during encapsulate, temperature is higher, shaping encapsulate lining ring 2 easily softens, in order to ensure the process ruggedness of encapsulate lining ring 2, except by the outside face of encapsulate, encapsulate lining ring 2 accurately will install location in encapsulation die, prevent distortion impaired, designing suitable anti-slip veins can play reinforced rib simultaneously.
Described outsourcing glue-line 1 is made up of the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring 2.Preferred thermoplastic rubber elastomeric material is TPR elastomeric material, and its melt temperature is 175 DEG C.
The melt temperature scope of the making material of described encapsulate lining ring 2 is 195 DEG C ~ 205 DEG C.The making material of preferred encapsulate lining ring is polyethylene, and its melt temperature is 200 DEG C.The making material of encapsulate lining ring 2 must have comparatively high melting temperature, generally at least high than the melt temperature of thermoplastic rubber elastomeric material about 25 DEG C.In order to ensure product design, accurately must control the melt temperature of material, usually can add a certain proportion of calcium carbonate in making material, carrying out suitable modification.
The layers of material of the Wheel of children cart in the present embodiment and melt temperature are as shown in table 1.
Table 1
| Operation item | Material | Model | Melt temperature |
| Blowing core wheel | PE | Polyethylene | 160°℃ |
| Encapsulate lining ring | PP | Polypropylene | 200°℃ |
| Outsourcing glue-line | TPR elastomeric material | PF | 175°℃ |
Embodiment two
A blowing core wheel external coated rubber manufacture craft for Wheel of children cart, its step is as follows:
(1) melt temperature is adopted to make encapsulate lining ring 2 at the material of 195 DEG C ~ 205 DEG C of scopes;
(2) the encapsulate lining ring 2 made accurately is installed location in encapsulation die, inject the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring 2, and through insulation vulcanization forming, at encapsulate lining ring 2 outer formation external coated rubber layer 1, described encapsulate lining ring 2 forms car wheel covering together with outsourcing glue-line 1;
(3) car wheel covering made accurately is installed location in blow mold, in encapsulate lining ring 2, make blowing core wheel 3 with blow moiding method, form blowing core wheel external coated rubber tire.
The melt temperature of described thermoplastic rubber elastomeric material is lower 25 DEG C than the melt temperature of the material making encapsulate lining ring 2.The making material of preferred encapsulate lining ring is polyethylene, and its melt temperature is 200 DEG C.Preferred thermoplastic rubber elastomeric material is TPR elastomeric material, and its melt temperature is 175 DEG C.
The surfaces externally and internally of the encapsulate lining ring 2 made in step (1) is equipped with anti-slip veins.
The making material of encapsulate lining ring 2 of the present invention must have comparatively high melting temperature, generally at least high than the melt temperature of thermoplastic rubber elastomeric material about 25 DEG C.In order to ensure product design, accurately must control the melt temperature of material, usually can add a certain proportion of calcium carbonate in making material, carrying out suitable modification.Encapsulate lining ring 2 must make anti-slip veins at surfaces externally and internally, increases the binding strength with outsourcing glue-line 1 and blowing core wheel 3; Because in mould during encapsulate, temperature is higher, shaping encapsulate lining ring 2 easily softens, in order to ensure the process ruggedness of encapsulate lining ring 2, except by the outside face of encapsulate, encapsulate lining ring 2 accurately will install location in encapsulation die, prevent distortion impaired, designing suitable anti-slip veins can play reinforced rib simultaneously.Need technological temperature when accurately controlling encapsulate, injection molding pressure, protect the mould time, Controlling Technology temperature and injection molding pressure be in order to allow thermoplastic rubber elastomeric material can in die cavity smooth flow filling, and guarantee not make encapsulate
Lining ring 2 is softening or be out of shape impaired; Controlling to protect the mould time is to ensure product vulcanized quality.Make blowing core wheel 3 shaping outer being surrounded by the encapsulate lining ring 2 of external coated rubber layer 1 with blow moiding method, select pressurized air that blowing core wheel 3 and outsourcing glue-line 1 are combined closely.
Shown in the layers of material of Wheel of children cart that the present embodiment makes and table 1 as a kind of in embodiment of melt temperature.
The technological temperature of each step of the present embodiment, injection molding pressure, guarantor's mould time can be shown in Table 2.
Table 2
| Sequentially | Operation item | Use equipment | Injection pressure | Protect mould temperature | Time | Remarks |
| 1 | Encapsulate lining ring makes | Injection machine HT-1200 | 50~110kg/cm 2 | 40°±5° | 50s | |
| 2 | Encapsulate layer is made outward at encapsulate lining ring | Injection machine HT-1200 | 50~110 kg/cm 2 | 40°±5° | 90s(is the Containing Sulfur time not) | Time of cure is determined according to the thickness of encapsulate layer |
| 3 | Blowing core wheel makes | Vacuum forming machine PT-80 | 40 kg/cm 2 | 50°±5° | 35s |
Claims (6)
1. the blowing core wheel external coated rubber manufacture craft of a Wheel of children cart, it is characterized in that: described Wheel of children cart comprises encapsulate lining ring, the encapsulate outsourcing glue-line outside encapsulate lining ring, the inner ring blowing of described encapsulate lining ring has blowing core wheel, the melt temperature of described encapsulate lining ring is higher than the melt temperature of described outsourcing glue-line, and the step of described blowing core wheel external coated rubber manufacture craft is as follows:
(1) melt temperature is adopted to make encapsulate lining ring at the material of 195 DEG C ~ 205 DEG C of scopes;
(2) the encapsulate lining ring made accurately is installed location in encapsulation die, inject the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring, and through insulation vulcanization forming, form external coated rubber layer outward at encapsulate lining ring, described encapsulate lining ring forms car wheel covering together with outsourcing glue-line;
(3) car wheel covering made accurately is installed location in blow mold, in encapsulate lining ring, make blowing core wheel with blow moiding method, form blowing core wheel external coated rubber tire.
2. the blowing core wheel external coated rubber manufacture craft of a kind of Wheel of children cart according to claim 1, is characterized in that: the surfaces externally and internally of described encapsulate lining ring is equipped with anti-slip veins.
3. the blowing core wheel external coated rubber manufacture craft of a kind of Wheel of children cart according to claim 1 and 2, is characterized in that: described outsourcing glue-line is made up of the thermoplastic rubber elastomeric material lower than the melt temperature of the material making encapsulate lining ring.
4. the blowing core wheel external coated rubber manufacture craft of a kind of Wheel of children cart according to claim 3, is characterized in that: the melt temperature scope of the making material of described encapsulate lining ring is 200 DEG C.
5. the blowing core wheel external coated rubber manufacture craft of a kind of Wheel of children cart according to claim 4, is characterized in that: the melt temperature of described encapsulate lining ring is higher than the melt temperature of described outsourcing glue-line 25 DEG C.
6. the blowing core wheel external coated rubber manufacture craft of a kind of Wheel of children cart according to claim 1, is characterized in that: the melt temperature of thermoplastic rubber elastomeric material described in blowing core wheel external coated rubber manufacture craft is lower 25 DEG C than the melt temperature of the material making encapsulate lining ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394825.7A CN102896976B (en) | 2012-10-17 | 2012-10-17 | Child cart wheel and blow-molded wheel core and externally rubber-coated manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394825.7A CN102896976B (en) | 2012-10-17 | 2012-10-17 | Child cart wheel and blow-molded wheel core and externally rubber-coated manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896976A CN102896976A (en) | 2013-01-30 |
| CN102896976B true CN102896976B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210394825.7A Expired - Fee Related CN102896976B (en) | 2012-10-17 | 2012-10-17 | Child cart wheel and blow-molded wheel core and externally rubber-coated manufacturing process thereof |
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| Country | Link |
|---|---|
| CN (1) | CN102896976B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1225376A (en) * | 1959-05-26 | 1960-06-30 | Improvements to the wheels of handling vehicles and wheels provided with these improvements | |
| JP3099969U (en) * | 2003-08-20 | 2004-04-22 | 合資会社豊田製作所 | Castor tire |
| CN2843906Y (en) * | 2005-09-26 | 2006-12-06 | 中山耀翔塑胶制品有限公司 | Improved structure of wheel of children's pushchair |
| CN200988397Y (en) * | 2006-11-06 | 2007-12-12 | 余炳坤 | Industrial castor single wheel |
| CN202879160U (en) * | 2012-10-17 | 2013-04-17 | 宁波舒博曼斯体育健身器材有限公司 | Buggy wheel |
-
2012
- 2012-10-17 CN CN201210394825.7A patent/CN102896976B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1225376A (en) * | 1959-05-26 | 1960-06-30 | Improvements to the wheels of handling vehicles and wheels provided with these improvements | |
| JP3099969U (en) * | 2003-08-20 | 2004-04-22 | 合資会社豊田製作所 | Castor tire |
| CN2843906Y (en) * | 2005-09-26 | 2006-12-06 | 中山耀翔塑胶制品有限公司 | Improved structure of wheel of children's pushchair |
| CN200988397Y (en) * | 2006-11-06 | 2007-12-12 | 余炳坤 | Industrial castor single wheel |
| CN202879160U (en) * | 2012-10-17 | 2013-04-17 | 宁波舒博曼斯体育健身器材有限公司 | Buggy wheel |
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| Publication number | Publication date |
|---|---|
| CN102896976A (en) | 2013-01-30 |
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