Summary of the invention
The invention provides a kind of extrusion die, effectively guaranteed the integrality of molding materials shape, also improved in a large number production efficiency and output, reduced the production cycle, improved the level of production.
For addressing the above problem, the invention provides a kind of extrusion die, comprise body, described body comprises patrix, virtual X, Y-axis coordinate on described patrix, and to take the center of circle of described patrix be the origin of coordinates;
Described patrix arranges three holes, and the first hole is arranged on Y-axis positive direction, and the second hole is arranged on third quadrant and the second quadrant, and the 3rd hole is arranged on fourth quadrant and first quartile, and described the second hole and the 3rd hole are symmetrical arranged, and the bridge location width described in three between hole is greater than 8mm;
Described in three hole core rod and a plurality of tap hole be set respectively, described tap hole is around described core rod setting;
Described body also comprises counterdie, and described counterdie arranges three water conservancy diversion cavitys, and described in each, water conservancy diversion cavity all arranges the die cavity being connected with himself;
Described water conservancy diversion cavity and the corresponding setting one by one of described hole, described die cavity and described core rod be corresponding setting one by one.
Preferably, described core rod comprises projection and mould neck, and described projection arranges work band, and described work band arranges around described projection.
Preferably, described work band is arranged on protruding middle part.
Preferably, the cross-sectional area of described mould neck increases toward lower end gradually from upper end, is one trapezoidal.
Preferably, the edge of described tap hole arranges chamfering.
Preferably, the bridge location both sides between described tap hole all arrange recess, and described recess is used for merging material.
Preferably, described recess length is 1/2~2/3 of bridge location length between tap hole.
Preferably, described patrix arranges a plurality of pins, and described counterdie arranges a plurality of pin holes, and described pin and described pin hole be corresponding setting all, for fixing described patrix and described counterdie.
Preferably, Kong Junyu patrix marginating compartment 15mm~25mm described in each.
As can be seen from the above technical solutions, the present invention has the following advantages: in extrusion die, patrix arranges three holes, this three hole is respectively according to the Y-axis positive direction of coordinate, third quadrant and fourth quadrant setting, bridge location width between three is greater than 8mm, counterdie is corresponding with patrix, and three holes can pass into respectively material to counterdie molding materials; Material is guided to water conservancy diversion cavity from tap hole by core rod, and material, after the accumulation of water conservancy diversion cavity, export, thereby moulding is fixed by die cavity.Owing in above-mentioned position, three holes being set at mould, when material is squeezed to mould, the pressure that mould is subject to, can on average disperse by three holes, and the mould that is arranged so that of bridge location width can not concentrated stressed, therefore mould is not easy impaired, and guarantee between the molding materials of output CONTACT WITH FRICTION mutually, therefore guaranteed the integrality of molding materials shape, also improved in a large number production efficiency and output, reduce the production cycle, improved the level of production.
The specific embodiment
The invention provides a kind of extrusion die, guaranteed the integrality of molding materials shape, also improved in a large number production efficiency and output, reduced the production cycle, improved the level of production.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Please refer to Fig. 1~Fig. 7, Fig. 1 is the upper die structure schematic diagram of a kind of extrusion die of the present invention; Fig. 2 is another schematic diagram of upper die structure of a kind of extrusion die of the present invention; Fig. 3 is the elevation cross-sectional view of the core rod of a kind of extrusion die of the present invention; Fig. 4 is the side cutaway view of the core rod of a kind of extrusion die of the present invention; Fig. 5 is the lower die structure schematic diagram of a kind of extrusion die of the present invention; Fig. 6 is the upper die and lower die assembling rear view of a kind of extrusion die of the present invention; Fig. 7 is the coordinate schematic diagram of a kind of extrusion die of the present invention.
The extrusion die of this specific embodiment, comprises body, and body comprises patrix 1, virtual X, Y-axis coordinate on patrix 1, and to take the center of circle 18 of patrix 1 be the origin of coordinates 18;
Patrix 1 arranges three holes, the first hole 11 is arranged on Y-axis positive direction, and the second hole 12 is arranged on third quadrant and the second quadrant, and the 3rd hole 13 is arranged on fourth quadrant and first quartile, the second hole 12 and the 3rd hole 13 are symmetrical arranged, and bridge location 17 width between three holes are greater than 8mm;
Three holes core rod 15 and a plurality of tap hole 14 be set respectively, tap hole 14 arranges around core rod 15;
Body also comprises counterdie 2, and counterdie 2 arranges three water conservancy diversion cavitys 21, and each water conservancy diversion cavity 21 all arranges the die cavity 22 being connected with himself;
Water conservancy diversion cavity 21 and hole corresponding setting one by one, die cavity 22 and core rod 15 be corresponding setting one by one.
Wherein, extrusion die can be cylinder, cuboid, square, ellipsoid or other special forms, be preferably cylindrical, take the center of circle 18 of cylindrical cross section is the origin of coordinates 18, in the origin of coordinates 18, do a longitudinal axis and a transverse axis, the longitudinal axis is mutually vertical with transverse axis, and the longitudinal axis is that Y-axis, transverse axis are X-axis.As shown in Figure 7, the Zhong, upper right, four regions that Y-axis and X-axis are divided be called first quartile, upper left be called the second quadrant, lower-left be called third quadrant, bottom right be called fourth quadrant, initial point does not belong to any quadrant.
Alleged virtual X, Y-axis coordinate are not that necessary being is in the coordinate of this mould, the description of only carrying out for the relation of clear each parts of expression.
The second alleged hole 12 is arranged on third quadrant and the second quadrant, and preferably the second hole 12 is roughly arranged on third quadrant, and part is through third quadrant to the second quadrant.The 3rd alleged hole 13 is arranged on fourth quadrant and first quartile, and preferably the 3rd hole 13 is roughly arranged on fourth quadrant, and part is passed fourth quadrant to first quartile.
Body comprises that patrix 1 and counterdie 2, three holes all run through patrix 1, and core rod 15 is arranged on a side of patrix 1, core rod 15 is one to protrude from the structure of patrix 1, water conservancy diversion cavity 21 is arranged on a side of counterdie 2, and die cavity 22 is arranged on the opposite side of counterdie 2, and water conservancy diversion cavity 21 and die cavity 22 run through connection.Three holes are setting corresponding to water conservancy diversion cavity 21 respectively, and size is corresponding setting also, and core rod 15 is setting corresponding to die cavity 22 respectively.
It should be noted that, for convenience of describing, a side that patrix 1 is provided with to core rod 15 is called upper end, and patrix 1 opposite side is called lower end; A side that counterdie 2 is provided with to water conservancy diversion cavity 21 is called lower end, and a side that counterdie 2 is provided with to die cavity 22 is called upper end, below de-emphasizes.
In the process of moulding aluminium, aluminium material is squeezed into the lower end (not showing in the drawings) of patrix, aluminium material enters respectively three holes, and by tap hole 14, prolong core rod 15 and enter water conservancy diversion cavity 21, when aluminium material is full of water conservancy diversion cavity 21, be subject to not stopping squeezing into the aluminium material effect of patrix, the aluminium material in water conservancy diversion cavity 21 enters die cavity 22, thereby by die cavity 22 sizing materials.
Alleged bridge location 17 is the positions between Kong Yukong, the width of junction between bridge location width finger-hole and hole.In this specific embodiment, between the first hole 11, the second hole 12 and the 3rd hole 13, become bridge location 17, its width is called bridge location width, and bridge location width can be preferably 8mm~20mm for being greater than 8mm, and more preferably 10mm~17mm, most preferably is 13mm~15mm.
Wherein the quantity of tap hole 14 can, for three, four or more, can be set according to actual needs.The setting corresponding to the shape in hole of the shape of water conservancy diversion cavity 21, can be set to be greater than the shape in hole.The position operated by rotary motion of die cavity 22 is at the middle part of water conservancy diversion cavity 21, corresponding with core rod 15, between core rod 15 and die cavity 22, does not connect, and makes material can prolong smoothly core rod 15 and enters in die cavity 22.
In this specific embodiment, as shown in Figure 5 and Figure 6, when the L-shaped shape of shape of die cavity 22, hole can arrange four tap holes 14, three substantially vertical tap holes 14 of core rod 15, core rod 15 is arranged on the middle part of four tap holes 14, and the shape of water conservancy diversion cavity 21 is set to corresponding with tap hole 14, the wider place of bridge location 16 between tap hole 14 wherein, water conservancy diversion cavity 21 can not comprise its corresponding position; This core rod 15 can be set to flat structure.
In this specific embodiment, as shown in Figure 2 to 4, core rod 15 comprises projection 155 and mould neck 152, and projection 155 arranges work band 151, and work can be the high horizontal stripe of first-class with 151, around arranging around projection 155.Preferably, work with 151 operated by rotary motion at projection 155 medium position.Wherein, work is with 151 projection 155 has been divided into three parts, and bottom is that lower empty cutter 154, middle part are that work band 151, top are overhead cutter 153, and protruding 155 are preferably one rectangular-shaped.
Core rod 15 is one to protrude from the structure of patrix 1, and its shape generally designs according to needs of production, can be strip, cylindric or special shape, and preferably, when die cavity 22 is " L " shape, core rod 15 is flat strip structure.
Wherein, the cross-sectional area of mould neck 152 increases toward lower end gradually from upper end, is one trapezoidal.
This work band 151 arranges around projection 155:
Preferably, be arranged on projection 155 middle upper end;
More preferably, core rod 15 is highly 23mm~29mm, and mould neck 152 is highly 15mm~17mm, mould neck 152 lower end width are large compared with upper end width, its lower end width is greater than upper end width 0.1mm~0.5mm, and projection 155 is highly 8mm~12mm, and work is with 151 to be highly 4mm~6mm;
Most preferably, core rod 15 is highly 21mm~27mm, and mould neck 152 is highly 16mm~17mm, mould neck 152 lower end width are large compared with upper end width, its lower end width is greater than upper end width 0.2mm~0.5mm, and projection 155 is highly 5mm~11mm, and work is with 151 to be highly 4mm~6mm.
Wherein, above-mentioned alleged height is as the criterion with the direction at the place, top and bottom of core rod 15.
In this specific embodiment, the edge of tap hole 14 arranges chamfering 41.
Alleged edge is preferably arranged on the edge of core rod 15 upper ends, guarantees that material has directionality and flow to water conservancy diversion cavity 21.
In this specific embodiment, bridge location 16 both sides between tap hole 14 all arrange recess 161, and described recess 161, for merging material, makes to enter water conservancy diversion cavity 21 after material fusion fully.
As shown in Figure 2, recess 161 operated by rotary motion, in bridge location 16 both sides, are the side of tap hole 14, the position of especially depending on near-lying mode core 15, preferably, recess 161 length be 14 of tap holes bridge location length 1/2~2/3.
Wherein, with the direction at patrix 1 place, top and bottom, be as the criterion, the direction at recess 161 length places is perpendicular to the direction at place, top and bottom, and this place is recess 161 length.The position that Kong Yukong connects, the position that tap hole 14 is connected with tap hole 14, can become bridge location 16,17.
In this specific embodiment, patrix 1 arranges a plurality of pins 19, and described counterdie 2 arranges a plurality of pin holes 23, and described pin 19 and described pin hole 23 be corresponding setting all, for fixing described patrix 1 and described counterdie 2, guarantee the not occurrence positions skew in moving process of patrix 1 and lower film.
In this specific embodiment, Kong Junyu patrix 1 marginating compartment 15mm~25mm described in each, when guaranteeing that material when extruding enters each hole, is uniformly distributed, and does not contact the parts of mould surrounding in the time of also guaranteeing molding materials moulding, guarantees the integrality of molding materials.
In extrusion die, patrix arranges three ,Zhe San holes, hole respectively according to the Y-axis positive direction of coordinate, third quadrant and fourth quadrant setting, and the bridge location width between three is greater than 8mm, and counterdie is corresponding with patrix, and three holes can pass into respectively material to counterdie molding materials; Material is guided to water conservancy diversion cavity from tap hole by core rod, and material, after the accumulation of water conservancy diversion cavity, export, thereby moulding is fixed by die cavity.Owing in above-mentioned position, three holes being set at mould, when material is squeezed to mould, the pressure that mould is subject to, can on average disperse by three holes, and the mould that is arranged so that of bridge location width can not concentrated stressed, therefore mould is not easy impaired, and guarantee between the molding materials of output CONTACT WITH FRICTION mutually, therefore guaranteed the integrality of molding materials shape, also improved in a large number production efficiency and output, reduce the production cycle, improved the level of production.
The above, above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.