EVA single injection-molded warming shoe
Affiliated technical field
The present invention relates to a kind of EVA single injection-molded footwear and these footwear footwear body formed particular manufacturing craft and production technology.
Background technology
Traditional footwear all be by moulding sole, footwear body, sheet material and in the lining cloth combination be made, the complex procedures of manufacturing process like this, manufacturing cost is higher, and protection against the tide, waterproof effect are poor.
Summary of the invention
The present invention seeks to produce a kind of EVA single injection-molded warming shoe, this production process not only provides a kind of disposable shoemaking production technology, but but also provide a kind of single injection-molded shoe mould, this mould helps the single injection-molded of plastic shoes, not only operation is simple, easy to operate, and low production cost.
The present invention makes like this: 1) on particular manufacturing craft once the property injection mo(u)lding go out the EVA foamed shoe body, 2) make the liner that has Villus cloth, 3) liner that has Villus cloth is bonded on the madial wall of EVA foamed shoe body, and allowing liner stretch out upper of a shoe one segment distance, the liner with this segment distance turns on the lateral surface that is bonded at welt again.Above-mentioned particular manufacturing craft is a kind of single injection-molded shoe mould, it is characterized in that: be included in its footwear mould location die cavity and be built-in with some patrixes and counterdie with corresponding sole die cavity to the footwear core rod, the footwear core rod can be deviate from patrix downwards during die sinking, be provided with in order to the filler space that pours into the footwear type in the footwear core surface between the sole die cavity of footwear core rod bottom and patrix footwear mould location die cavity and counterdie during matched moulds, described counterdie is provided with the charging duct towards the sole die cavity, and described footwear core rod top can make the footwear core rod move down to break away from the elastic parts of patrix when being provided with die sinking.During matched moulds, upper die and lower die externally compress under the effect of board pressure, the footwear core rod is up, just in time be in behind the compressing elastic parts in the footwear mould location die cavity of patrix, the footwear materials such as EVA foamed plastic that inject the sole die cavity this moment from the charging duct are distributed to the filler space formation footwear type of footwear core surface; During die sinking, the board pressure effect that acts on the upper and lower mould is removed, and this moment, elastic parts promptly promoted the footwear core rod downwards under the effect of its elastic potential energy, made it break away from patrix downwards, thereby in order to the user footwear that make was removed from the footwear core rod.
Remarkable advantage of the present invention is: the present invention helps making footwear by single injection-molded, can produce the footwear that have upper of a shoe or do not have upper of a shoe respectively, its operation is simple, easy to operate, with low cost, and this footwear waterproof, protection against the tide, thermal property are good, have bigger application value.
Description of drawings
(a) is respectively the structure diagram of band upper of a shoe single injection-molded warming shoe of the present invention and no upper of a shoe single injection-molded warming shoe (b) among Fig. 1.
Fig. 2 is the embodiment of the invention one a die opening state schematic diagram.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is embodiment one a matched moulds view.
Fig. 5 is the embodiment of the invention two die opening state schematic diagrames.
Fig. 6 is embodiment two matched moulds view.
Fig. 7 is embodiment two counterdie vertical views, comprises the footwear core rod among the figure.
Among the above-mentioned figure: 1, footwear core rod 2, patrix 3, sole die cavity 4, counterdie 5, charging duct 6, elastic parts 7, slide block 8, positioning strip 9, guiding duct 10, vertical guide rod 11, footwear core rod 12, patrix 13, sole die cavity 14, counterdie 15, charging duct 16, elastic parts 17, guide rod 18, guide pin bushing 19, locating piece 20, outward flange portion 21, last guiding duct 22, under the duct 23 of leading, inward flange portion 24, outward flange portion 26, location die cavity 27, liner 28, last cover 29, foamed shoe body 30, tack coat
The specific embodiment mode
The structure of the embodiment of the invention one such as Fig. 2, Fig. 3, Fig. 4 is described, it is characterized in that: be included in its footwear mould location die cavity 25 and be built-in with some patrixes 2 and counterdie 4 with corresponding sole die cavity 3 to footwear core rod 1, the footwear core rod can be deviate from patrix downwards during die sinking, be provided with in order to the filler space that pours into the footwear type in the footwear core surface between the sole die cavity of footwear core rod bottom and patrix footwear mould location die cavity 25 and counterdie during matched moulds, described counterdie is provided with the charging duct 5 towards the sole die cavity, and described footwear core rod top can make the footwear core rod move down to break away from the elastic parts 6 of patrix when being provided with die sinking.
In order to help the location of footwear core rod in footwear mould location die cavity and sole die cavity, above-mentioned footwear core rod top respectively through the die cavity top, footwear mould location of patrix stretch out with cross at patrix on slide block 7 connect, described elastic parts is located between slide block and the patrix; Two sides of described slide block are provided with the positioning strip 8 that turns downwards, and counterdie promoted to move on the slide block through positioning strip elastic parts is compressed when it can stretch out patrix in order to matched moulds downwards when die sinking.
Also be provided with the vertical guide rod 10 that stretches into guiding duct 9 in the slide body on the above-mentioned patrix and move up and down in order to slide block, described elastic parts 6 is for being sheathed on the spring of vertical guide rod periphery.
This embodiment is arranged on footwear core rod top (slide block 7) and both sides (positioning strip 8) owing to will locate the keeper of footwear core rod, all can be laid with filler space around the footwear core rod, thereby is beneficial to the footwear that manufacturing has upper of a shoe.
The structure of the embodiment of the invention two such as Fig. 5, shown in Figure 6, it comprise be built-in with some to footwear core rod 11 patrixes 12 and have the counterdie 14 of corresponding sole die cavity 3, the footwear core rod can be deviate from patrix downwards during die sinking, be provided with in order to the filler space that pours into the footwear type in the footwear core surface between the sole die cavity of footwear core rod bottom and patrix footwear mould location die cavity 26 and counterdie during matched moulds, described counterdie is provided with the charging duct 15 towards the sole die cavity, it is characterized in that: described footwear core rod top can make the footwear core rod move down to break away from the elastic parts 16 of patrix when being provided with die sinking.
Be connected with the locating piece 19 that cooperates the location with the positioning chamber around the sole die cavity of being located at counterdie between the bottom rear side of above-mentioned footwear core rod.During matched moulds, come the footwear core rod is positioned by locating piece and positioning chamber.
In order to help the location of footwear core rod in footwear mould location die cavity and sole die cavity, above-mentioned footwear core rod top is respectively equipped with the guide rod 17 that can stretch out through the die cavity top, footwear mould location of patrix, and described patrix top is provided with the guide pin bushing 18 that moves up and down in order to guide rod; When preventing that the footwear core rod from falling and patrix break away from fully, the upper end of above-mentioned guide pin bushing is provided with outward flange portion 20, described patrix is provided with the following guiding duct 22 that guiding duct 21 and internal diameter and guide pin bushing external diameter are complementary of going up that internal diameter and guide pin bushing outward flange portion external diameter be complementary, the upper and lower serial connection in two guiding ducts, the inboard, lower end of described guide pin bushing is provided with inward flange portion 23, and described guide rod upper end is provided with when the footwear core rod can be buckled on the outward flange portion 24 of guide pin bushing inward flange portion upside so that can hang on the patrix bottom after the die sinking of footwear core rod when die sinking is fallen.When the footwear core rod falls, guide rod moves down, be buckled on guide pin bushing inward flange portion 23 upsides by its outward flange portion 24, guide pin bushing also moves down simultaneously, be buckled on the top that is connected in series out, guiding duct by its outward flange portion 20, like this, not only help increasing distance that the relative patrix of footwear core rod deviates from downwards so that the user gets footwear, and the footwear core rod can not be suspended on the patrix bottom, can not break away from fully.
This example is owing to be connected with the locating piece that cooperates the location with the positioning chamber around the sole die cavity of being located at counterdie between the bottom rear side of footwear core rod, during injection mo(u)lding, the bottom rear side of footwear core rod does not have filler space, thereby is commonly used to make slippers etc. not with the footwear of upper of a shoe.
EVA single injection-molded warming shoe for no upper of a shoe, it is characterized in that: after once injection mo(u)lding goes out EVA foamed shoe body 29 on the particular manufacturing craft, be bonded on the madial wall of EVA foamed shoe body making the liner 27 that has Villus cloth, and allow liner stretch out welt portion one segment distance, liner with this segment distance turns on the lateral surface that is bonded at welt portion again, is provided with tack coat 30 between the liner of described footwear body madial wall and Villus cloth.
EVA single injection-molded warming shoe for the band upper of a shoe, it is characterized in that: after once injection mo(u)lding goes out EVA foamed shoe body 29 on the particular manufacturing craft, upper of a shoe oral area place serial connection be sewed with form by some joint annular slice materials on overlap 28, footwear body madial wall reaches goes up the liner that cover 28 madial walls are bonded with Villus cloth, is provided with tack coat 30 between footwear body madial wall and the liner.
The present invention helps producing the footwear body by single injection-molded, and can produce the footwear that have upper of a shoe or do not have upper of a shoe respectively, its operation is simple, easy to operate, with low cost, and this footwear light weight, waterproof, protection against the tide, thermal property are good, have bigger application value.