Injection mold tiltedly pushes up mechanism and the injection mold of this mechanism is installed
Technical field
The present invention relates to the injection mold that a kind of injection mold tiltedly pushes up mechanism and this mechanism is installed.
Background technology
At present, the raising of the Along with people's level of consumption, people require increasingly high to equipment appearances such as the various daily necessitiess or the vehicles.With the automobile is example, and people all have higher requirement to the moulding and the outward appearance of automotive upholstery.Yet, when producing this base part, adopting traditional injection mold usually, this injection mold generally adopts side gate or needle valve cast gate, adopts these two kinds of cast gates to have following shortcoming:
1) side gate: promptly advance injection moulding liquid from the product periphery, injection moulding liquid flows to its another edge side from the edge side of die cavity in injection moulding process, causes the injection moulding liquid filling time long, and injection moulding efficient is low.Simultaneously, adopt this side gate, after injection moulding is accomplished, need artificial revise material, and artificial revise material the time may the scratch dermatoglyph, on Surface Appearance, leave a trace the quality of reduction product.
2) needle valve cast gate: promptly the hot flow path spray nozzle part is directly on the appearance of product; Because the temperature in the exit of spray nozzle part is very high; When it contacts with the appearance of product; Very easily on its appearance, form the hot spot region, on Surface Appearance, form tangible speck and shrink mark easily, reduce the quality of product.
Summary of the invention
In view of this, main purpose of the present invention is the injection mold that provides a kind of injection mold that can improve the quality of products tiltedly to push up mechanism and this mechanism is installed.
In order to achieve the above object; The present invention proposes a kind of injection mold and tiltedly push up mechanism; Said injection mold comprises moving platen and solid plate, and said moving platen can move along the matched moulds direction, and is closed mutually and form mold cavity by said moving platen and solid plate; Pass that it is inner and can be at angle ejector rod flexible on the matched moulds direction and the hot nozzle body that is used in said die cavity, injecting injection moulding liquid being provided with on the said moving platen; It is characterized in that, be connected with slanted kicking block, on this slanted kicking block, be formed with in order to be communicated with the runner of said hot nozzle body and said die cavity in the end near said die cavity one side of said angle ejector rod.
Draw from the above mentioned, owing on slanted kicking block, be provided with runner, injection moulding liquid is flowed through this runner by the outlet of said hot nozzle body and is injected in the said die cavity.Like this; Be connected through this runner between hot nozzle body and the said die cavity; The outlet of hot nozzle body directly is not connected then and can not forms the high temperature hot-zone at product surface with die cavity, can avoid forming blemish such as burr, wedge angle, shrink on the surface of product, thereby improve the quality of product.
In addition,, make this slanted kicking block when being used to offer runner, can also realize the function that ejects of product, can reduce the number of components and parts of injection mold, make its structure compact more because said runner is opened on the said slanted kicking block.
Preferably, said runner is the groove on said slanted kicking block, offered, and has opening at the two ends of this groove, and the one of which end opening is corresponding with hot nozzle body, and the die cavity opening of the said injection moulding liquid injection of confession is corresponding on its other end opening and the said die cavity.
Draw from the above mentioned; Said runner adopts the groove structure to realize, because a side of this groove structure has opening, then in the injection moulding flow during through this runner; Can carry out cooling to a certain degree to injection moulding liquid, thereby avoid forming defective at product surface because the injection moulding liquid temp is too high.
Preferably, join, on said slanted kicking block, be provided with cast gate, and this cast gate and said die cavity opening align with streamlined curved surface with the opening near said die cavity one side of said runner.
Draw from the above mentioned,, can avoid helping after injection moulding is accomplished, product being carried out the demoulding at product and the contacted local back-off that forms of mould because said cast gate is streamlined curved surface.
Preferably, said runner is opened in the middle part of said slanted kicking block, and the both sides of corresponding said runner are respectively equipped with said angle ejector rod on said slanted kicking block.
Draw from the above mentioned; Because the both sides of corresponding said runner are respectively equipped with said angle ejector rod on said slanted kicking block, can make the ejecting force distributing equilibrium that acts on the said slanted kicking block, thereby ejecting in the process at product; Make the dynamics distributed uniform that acts on the product, help ejecting product.
Preferably, offer U-shaped portion, the opposition side of open side that should U-shaped portion is provided with runner on slanted kicking block in the middle part of said slanted kicking block.
Draw from the above mentioned; Owing on said slanted kicking block, offer U-shaped portion; And the opposition side of open side that should U-shaped portion is provided with runner on slanted kicking block; Then hot nozzle body can be stretched into by the open side of U-shaped portion in this U-shaped portion and align with the opening of said runner, helps making the outlet of hot nozzle body and the opening of runner to align.
Preferably, be provided with in the side relative with said die cavity of said moving platen and eject template, and this ejects template and can move along the matched moulds direction, the end away from said die cavity of said angle ejector rod links to each other with the said template that ejects through attaching parts.
Draw from the above mentioned; Because the two ends of said angle ejector rod are connected with said slanted kicking block with the said template that ejects respectively; When ejecting template when the matched moulds direction moves, said angle ejector rod can drive said slanted kicking block and move along the matched moulds direction, thereby realizes the process that ejects of product.
Preferably; Be connected with said slanted kicking block and be provided with in order to lock the oil cylinder retaining mechanism of said slanted kicking block; This oil cylinder retaining mechanism include at least oil cylinder and can be by this hydraulic oil cylinder driving and on the direction vertical with said matched moulds direction flexible check lock lever, said oil cylinder is fixed on the said moving platen, on said slanted kicking block, is provided with the hole; Under the injection moulding state, said check lock lever is stretched in this hole by said hydraulic oil cylinder driving.
Draw from the above mentioned,, in injection moulding process, can fix said slanted kicking block, avoid slanted kicking block to be beaten back because of injection moulding power is excessive through this retaining mechanism owing to be provided with retaining mechanism.
Preferably; Said oil cylinder retaining mechanism comprises said oil cylinder, oil cylinder fixed block, cylinder connector, check lock lever fixed block and the said check lock lever that sets gradually; Said oil cylinder is fixed on the outside of said moving platen through said oil cylinder fixed block; One end of said cylinder connector links to each other with said oil cylinder fixed block, and its other end links to each other with said check lock lever fixed block, and the end away from said slanted kicking block of said check lock lever links to each other with said check lock lever fixed block.
Simultaneously, the invention allows for a kind of injection mold, it is characterized in that, arbitrary described oblique top mechanism in aforementioned is installed on said injection mold.
Draw from the above mentioned, said injection mold has beneficial effect same as described above, does not give unnecessary details at this.
Preferably, said die cavity opening is opened in the side with the corresponding injection mold in the back side of said product.
Draw from the above mentioned, because said die cavity opening is opened in the side with the corresponding injection mold in the back side of said product, in injection moulding process; Injection moulding liquid is from getting in the said die cavity with the corresponding side in the back side of product; Like this, even in injection moulding process, form blemish, this blemish also is positioned at the back side of product; With the appearance that can not influence entire product, help improving the quality of product.
Description of drawings
Fig. 1 has wherein omitted the solid plate and the moving platen that form die cavity for tiltedly pushing up the sketch map that is provided with of mechanism and said mold cavity;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
The specific embodiment
The injection mold that the present invention is proposed below in conjunction with Fig. 1 and Fig. 2 tiltedly pushes up mechanism and is elaborated.
Fig. 1 has omitted the solid plate and moving platen and other structures that form die cavity in the figure for tiltedly pushing up the sketch map that is provided with of mechanism and molding mold cavity.Fig. 2 is the partial enlarged drawing at A place among Fig. 1.As shown in Figure 1, injection mold comprises moving platen (not shown) and solid plate (not shown), and this moving platen can move along the matched moulds direction.Between moving platen and solid plate, have the gap, constitute the product mold die cavity 1 that is complementary with shape of product by this gap, wherein, a side of the die cavity 1 of corresponding moving platen side is the back side of product; One side of the die cavity 1 of corresponding solid plate side is the front (also being the appearance of product) of product.Die cavity opening (not shown) be opened in the corresponding moving platen in the back side of product on, and this die cavity opening is positioned at the middle part of said die cavity 1, like this; In injection moulding process, injection moulding liquid is from getting in the said die cavity with the corresponding side in the back side of product, and around flowing to from the middle part of die cavity 1; Like this, even in injection moulding process, form blemish, this blemish also is positioned at the back side of product; With the appearance that can not influence entire product, help improving the quality of product.Simultaneously, injection moulding liquid can shorten the filling time of injection moulding liquid around the middle part flow direction of die cavity 1, help improving injection moulding efficient.
On the side near die cavity 1 of moving platen, be provided with and eject the template (not shown), this eject template can along the matched moulds direction towards near/move away from the direction of die cavity 1.On moving platen, be provided with and pass its inner oblique top mechanism; Tiltedly top mechanism comprises a pair of diversion piece 11 (constituting attaching parts of the present invention), a pair of angle ejector rod 2, a pair of slider guide 12 and the slanted kicking block 6 that sets gradually; Wherein, diversion piece 11 through first screw 14 with eject template and be connected; One end of angle ejector rod 2 is connected with diversion piece 11 through second screw 15, and its other end passes slider guide 12 and is connected with slanted kicking block 6 through oblique top fixed block 13.When ejecting template when the matched moulds direction is moved, diversion piece 11 can drive slanted kicking blocks 6 through angle ejector rod 2 carry out uniformity along the matched moulds direction and move, thereby ejects product.In the present embodiment, slanted kicking block 6 is rectangular-shaped, offers a U-shaped opening 61 (constitute of the present invention U-shaped portion) in the middle part of this slanted kicking block 6, and said angle ejector rod 2 is corresponding with the both sides of this U-shaped opening 61 and be connected on the slanted kicking block 6.Because angle ejector rod 2 is symmetricly set in the both sides of slanted kicking block 6, can make the ejecting force distributing equilibrium that acts on the slanted kicking block 6, thereby, make the dynamics distributed uniform that acts on the product, help ejecting product the ejecting in the process of product.Align with the U-shaped opening 61 of slanted kicking block 6, on moving platen, be fixed with hot nozzle body 3, this hot nozzle body 3 is used in die cavity 1, providing the injection moulding liquid of high-temperature fusion.
As shown in Figure 2; Corresponding with the opposition side of the open side of U-shaped opening 61; On slanted kicking block 6, offer a groove 7, have opening at the two ends of this groove 7, the outlet 31 of one of which end opening and hot nozzle body 3 aligns; Die cavity opening on its other end opening and the die cavity 1 aligns, and through this groove 7 hot nozzle body outlet 31 is communicated with die cavity 1.In injection moulding process, injection moulding liquid gets into groove 7 by the outlet 31 of hot nozzle body 3, and this groove 7 of flowing through is injected in the die cavity 1 by the die cavity opening.Like this, hot nozzle body outlet 31 directly contact with the product back side, can avoid in blemish such as the surface of product formation burr, wedge angle, shrinks, thus the quality of raising product.Simultaneously, because a side of this groove 7 is a hatch frame, then during through this runner, can carries out cooling to a certain degree to injection moulding liquid, thereby avoid forming defective at product surface because the injection moulding liquid temp is too high in the injection moulding flow.In addition,, make this slanted kicking block 6 when being used to offer runner, can also realize the function that ejects of product, can reduce the number of components and parts of injection mold, make its structure compact more because groove 7 is opened on the slanted kicking block 6.
As shown in Figure 2, join with the opening near die cavity one side of groove 7, on slanted kicking block 6, be provided with cast gate 9, this cast gate 9 aligns with the die cavity opening, and this cast gate 9 has streamlined curved surface.Because cast gate 9 has popular type curved surface, can avoid helping after injection moulding is accomplished, product being carried out the demoulding at product and the contacted local back-off that forms of mould.
On injection mold, being connected with slanted kicking block 6 is provided with the oil cylinder retaining mechanism, in injection moulding process, so that slanted kicking block 6 is fixed, can avoid slanted kicking block 6 to be beaten back because of injection moulding power is excessive through this oil cylinder retaining mechanism locking slanted kicking block 6.As shown in Figure 1; The oil cylinder retaining mechanism includes oil cylinder 8, oil cylinder fixed block 5, cylinder connector (not shown), check lock lever fixed block 10 and the check lock lever 4 that sets gradually; Wherein, oil cylinder 8 is fixed on the outside of moving platen through oil cylinder fixed block 5, and oil cylinder fixed block 3 links to each other with check lock lever fixed block 10 through cylinder connector; One end of check lock lever 4 is connected with check lock lever fixed block 10, and its other end passes moving platen inside and is connected with slanted kicking block 6.Under the effect of cylinder connector; Check lock lever fixed block 10 drives check lock lever 4 and seesaws; When check lock lever 4 travelled forward, check lock lever 4 inserted in the through hole 62 (constituting hole of the present invention) on the slanted kicking blocks 6 and locks slanted kicking block 6 it can not be moved along the matched moulds direction; When check lock lever 4 moves backward, withdraw from then the through hole 62 of check lock lever 4 from slanted kicking block 6 that slanted kicking block 6 can move along the matched moulds direction, realize locking effect with this to oblique top mechanism.
Below in conjunction with structure shown in Figure 1, the course of action of injection mold is described.
During the injection mold matched moulds; Slanted kicking block 6 is by getting back in the die cavity 1 under the promotion that is fixed on the diversion piece that ejects on the template 11 and angle ejector rod 2; The check lock lever fixed block 10 drive check lock lever 4 under the driving of oil cylinder 8 that is fixed on then on the check lock lever 4 moves forward; Locking slanted kicking block 6 is promptly accomplished mould assembling action in the through hole 62 that check lock lever 4 inserts on the slanted kicking block 6.In injection moulding process, injection moulding liquid gets into grooves 7 by the outlet of hot nozzle body 3 31, this groove 7 and injected in the die cavity 1 by the die cavity opening of flowing through.After injection moulding is accomplished; At first moving platen and solid plate carry out die sinking; When injection mold reach die sinking apart from the time, check lock lever fixed block 10 drive check lock lever 4 under the driving of oil cylinder 8 detaches from through hole 62, and check lock lever 4 is return from slanted kicking block 6; Slanted kicking block 6 is by ejecting product downwards under the promotion that is fixed on the diversion piece that ejects on the template 11 and angle ejector rod 2 then, thereby accomplishes the process that ejects of product.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
For example, of the present invention focus on protecting on slanted kicking block, be provided with one adopt the groove structure runner, for other tiltedly top mechanisms and retaining mechanism be prior art, also can adopt other alternative schemes in the prior art to realize, do not give unnecessary details at this.
Again for example, as shown in Figure 1 in the above-described embodiments, with slanted kicking block 6 for rectangular-shaped be the explanation that example is carried out, yet not limited thereto, this slanted kicking block also can adopt other shapes, the shape of this slanted kicking block is decided according to the concrete structure of product particularly.
Again for example, as shown in Figure 1 in the above-described embodiments, on slanted kicking block 6, be provided with a pair of angle ejector rod 2, yet not limited thereto, this angle ejector rod 2 also can be a plurality of (greater than 2).When on slanted kicking block, a plurality of angle ejector rod being set, this angle ejector rod preferably is uniformly distributed on the slanted kicking block.
Again for example, in the above-described embodiments, adopt oil cylinder to drive the motion of check lock lever in the said retaining mechanism, yet not limited thereto, it also adopts cylinder that driving force is provided.