A kind of injection mold with folding mould driving core-pulling mechanism
Technical field
The present invention relates to the mould design field, specifically, relate to the improvement of core-pulling mechanism in a kind of mould.
Background technology
Aspect Injection Mold Design, back-off for common product inside generally adopts oblique top mechanism to loose core, inside back-off for some injection-molded item can't then generally adopt oil cylinder to loose core from the goods below, to realize the smooth demoulding of plastic products with the situation of conventional methods such as oblique top solution.The loose core of oil cylinder structural scheme of mechanism, as shown in Figure 1.
Adopt the loose core of oil cylinder shortcoming as follows:
1, complex structure, it is big to take up room, loose core of oil cylinder mechanism need offer the opening of placing oil cylinder in template, thereby the intensity to template affects, cooling system need leave cooling water channel in template, the oil cylinder oil circuit of offering in template influences the layout of cooling water channel, simultaneously, ejecting mechanism need add push rod in template, oil cylinder takies the position of push rod, and therefore, its complicated structure is to peripheral ejecting mechanism, cooling water channel, and the intensity of template all can exert an influence, cause goods to eject defectives such as difficulty and generation distortion, thereby influence the quality of goods.
2, cost height, oil cylinder needs buying separately, and need be equipped with the needed relevant auxiliary facility of loose core of oil cylinder (hydraulic pump, magnetic valve etc.), when a plurality of back-offs in product inside are loosed core, can need a plurality of oil cylinders, in addition, need open oil circuit at the mould square iron, this all will cause cost risings such as Mould Machining, thereby cause the mould cost to rise.
3, influence mould stability, the complicated structure of loosing core will inevitably propose higher requirement to the action stability of mould.
4, the action cycle long, loose core of oil cylinder need have the action of loosing core separately, this will increase the injection moulding production cycle greatly, reduce the production efficiency of goods.
5, assembling and dismounting difficulty need whole dynamic model dominant control dismounting is brought very big inconvenience to mould production and ordinary maintenance, cause great amount of manpower and material resources consumption and waste.
Summary of the invention
The invention provides a kind of injection mold that the folding mould drives core-pulling mechanism that has, the problem that to loose core with conventional methods such as oblique tops at the inner back-off of goods can be solved, and the improvement of the each side such as complexity, cost, stability, production cycle, ordinary maintenance of mechanism can be implemented in.
In order to address the above problem, technical scheme of the present invention is, a kind of injection mold with folding mould driving core-pulling mechanism, comprise solid plate, moving platen, insert and core-pulling mechanism in Angle Pin, active sliding block, by movable slider, described Angle Pin is made of Angle Pin head and the Angle Pin body of rod, have the skewed slot that is complementary with the described Angle Pin body of rod on the described active sliding block, described Angle Pin head is fixed on the described solid plate, the described Angle Pin body of rod inserts in the described skewed slot, it is characterized in that: the described active sliding block described moving platen that is slidingly connected, it is wedge shape that the front end of described active sliding block has a side at least, described by in described the inserting of movable slider insertion, have a wedge shape end face, be slidingly matched by inclined ramp with described active sliding block.
Further, the present invention also has following technical characterictic: described active sliding block and described by the inclined ramp between the movable slider be slidingly matched for "T"-shaped with being slidingly matched of oblique "T"-shaped groove, on the described "T"-shaped front end wedge shape side that is fixed on described active sliding block, describedly had oblique "T"-shaped groove on the movable slider tapered end face, described "T"-shaped embeds in the described oblique "T"-shaped groove.
Further, the present invention also has following technical characterictic: described active sliding block and described being slidingly matched by the inclined ramp between the movable slider are inverted "L" shaped piece and oblique being slidingly matched of inverted "L" shaped groove, described inverted "L" shaped piece is screwed on the front end wedge shape side of described active sliding block, describedly had oblique inverted "L" shaped groove on the movable slider tapered end face, described inverted "L" shaped piece embeds in the described oblique inverted "L" shaped groove.
Further, the present invention also has following technical characterictic: the folded acute angle scope of the axis of movement of described inclined ramp and described active sliding block is 15 °-45 °.
Further, the present invention also has following technical characterictic: the rear end of described active sliding block respectively faces down and extends to form take-up housing, and described take-up housing both sides respectively are provided with a rectangular boss.
Further, the present invention also has following technical characterictic: the parts of the active sliding block that is slidingly connected and moving platen comprise sliding clamp and wearing plate, have the breach that is complementary with described rectangular boss on the described slide block pressing plate, described wearing plate is fixed on the described moving platen, is positioned at the below of described take-up housing.
Further, the present invention also has following technical characterictic: also be provided with a limited block, described limited block is fixed on the moving platen, is positioned at the rear of described wearing plate.
Further, the present invention also has following technical characterictic: the described spacing hole that is had up/down perforation on the movable slider, a bar shaped limited post is set in the described spacing hole, and described limited post one end passes described spacing hole, and an end is fixed on described the inserting.
Further, the present invention also has following technical characterictic: the range of tilt angles of the described Angle Pin body of rod is 10 °-30 °, the parts of fixing described Angle Pin head are the Angle Pin fixed block, have the inclined hole that is complementary with the described Angle Pin body of rod on the described Angle Pin fixed block, the described Angle Pin body of rod inserts in the described inclined hole, described Angle Pin fixed block is provided with the screw post, is screwed on described solid plate.
Further, the present invention also has following technical characterictic: describedly cooperated with the inclined-plane, front end wedge shape side of described active sliding block by the wedge shape end face of movable slider.
The present invention compares with original technology and has the following advantages and good effect:
1, core-pulling mechanism adopts fully mechanical to loose core among the present invention, and is simple in structure, moves smooth and easyly, can not have a negative impact to mould structure intensity.
2, adopt fully mechanical to loose core, saved buying expenseses such as oil cylinder, avoided the needed relevant auxiliary facility of outfit loose core of oil cylinder (hydraulic pump, magnetic valve etc.), saved processing charges such as depth drill.
3, fully mechanical is loosed core, and utilizes the action of mould open/close mould to realize loosing core, and action is synchronous, and mould stability improves.
4, no independent loosing core the time directly loosed core in the mould die sinking process, and it is smooth and easy to link up, thereby has shortened injection cycle.
5, the part parts need not to dismantle dynamic model and can take out convenient for maintaining.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail.
Fig. 1 is prior art loose core of oil cylinder mechanism structure schematic diagram;
Wherein, a, oil cylinder; B, moving platen; C, goods; D, active sliding block; E, by movable slider; F, back-off; G, moulding glue position; H, piston rod;
Fig. 2 is a kind of structural representation with injection mold of folding mould driving core-pulling mechanism of the present invention;
Among the figure, 1, moving platen; 2, core-pulling mechanism; 3, insert; 3-1, slide block slot; 4, goods;
Fig. 3 is the structural representation that has the core-pulling mechanism of folding mould driving among the present invention;
Fig. 4 is the structure explosive view that has the core-pulling mechanism of folding mould driving among the present invention;
Among the figure, 2, core-pulling mechanism; 2-1, active sliding block; 2-1-1, lozenges; 2-1-2, skewed slot; 2-1-3, take-up housing; 2-1-4, boss; 2-2, by movable slider; 2-2-1, oblique "T"-shaped groove; 2-2-2, moulding glue position; 2-2-3, spacing hole; 2-2-4, wedge shape end face; 2-3, Angle Pin fixed block; 2-4, Angle Pin; 2-5, slide block pressing plate; 2-5-1, breach; 2-6, wearing plate; 2-7, limited block; 2-8, "T"-shaped; 2-9, limited post;
Fig. 5-the 1st, the structural representation of Angle Pin among the present invention;
Among the figure, 2-4, Angle Pin; 2-4-1, Angle Pin head; 2-4-2, the Angle Pin body of rod;
Fig. 5-the 2nd, the structural representation of Angle Pin fixed block among the present invention;
Among the figure, 2-3, Angle Pin fixed block; 2-3-1, inclined hole; 2-3-2, screw post;
Fig. 5-the 3rd, the assembly structure schematic diagram of Angle Pin and Angle Pin fixed block among the present invention;
Among the figure, 2-3, Angle Pin fixed block; 2-4, Angle Pin;
Fig. 6-the 1st, among the present invention active sliding block with by movable slider relative motion initial state figure;
Fig. 6-the 2nd, among the present invention active sliding block with by movable slider relative motion done state figure.
Fig. 7-the 1st, the structural representation of inverted "L" shaped piece among the another kind of embodiment of the present invention;
Among the figure, 2-10, inverted "L" shaped piece;
Fig. 7-the 2nd, inverted "L" shaped piece and oblique inverted "L" shaped groove assembly structure figure among the another kind of embodiment of the present invention;
Among the figure, 2-10, inverted "L" shaped piece; 2-11, oblique inverted "L" shaped groove.
The specific embodiment
Loosing core of inside back-off with refrigerator drawer is example.
Embodiment 1
Referring to Fig. 1, oil cylinder a places moving platen b, be moulding glue position g by movable slider e one end, the other end has "T"-shaped groove, active sliding block d goes up fixedly to become with the direction of motion of the piston rod h of oil cylinder a "T"-shaped of certain rake angle, on the active sliding block d "T"-shaped be slidingly matched by the "T"-shaped groove on the movable slider e.Simultaneously, active sliding block d bottom has "T"-shaped groove, cooperate with the joint of the piston rod h of oil cylinder a, in the process of loosing core, oil cylinder a pulling active sliding block d moves along the direction of motion of piston rod h, thereby drive by movable slider e in the groove of inserting along the direction vertical with the direction of motion of piston rod h to goods c internal motion, realize loosing core moulding back-off f.
Referring to Fig. 2, Fig. 3 and Fig. 4, a kind of injection mold with folding mould driving core-pulling mechanism comprises moving platen 1, solid plate is (for avoiding blocking the parts of solid plate below, solid plate does not draw, the position is corresponding with moving platen), core-pulling mechanism 2, insert 3 and goods 4, core-pulling mechanism 2 comprises active sliding block 2-1, by movable slider 2-2 and Angle Pin 2-4, Angle Pin 2-4 is fixed on the mould solid plate, and active sliding block 2-1 is slidingly connected on the moving platen 1, inserting of goods 4 has a slide block slot 3-1 in 3, inserted in this slide block slot 3-1 by movable slider 2-2, be slidingly matched between Angle Pin 2-4 and the active sliding block 2-1, active sliding block 2-1 and being slidingly matched between the movable slider 2-2.
Wherein, Angle Pin 2-4 is made of Angle Pin head 2-4-1 and Angle Pin body of rod 2-4-2, and the range of tilt angles of Angle Pin body of rod 2-4-2 is 10 °-30 °, in the present embodiment is 30 °, shown in β angle among Fig. 5-1.Angle Pin 2-4 is fixed on the solid plate by Angle Pin fixed block 2-3, have the inclined hole 2-3-1 that is complementary with Angle Pin body of rod 2-4-2 on the Angle Pin fixed block 2-3, Angle Pin body of rod 2-4-2 inserts in the inclined hole 2-3-1, Angle Pin fixed block 2-3 is provided with screw post 2-3-2 for four jiaos, be fixed on the solid plate with screw, thereby Angle Pin 2-4 is fixed on the solid plate, as Fig. 5-1 to shown in Fig. 5-3.
The side of active sliding block 2-1 front end has at least one to be lozenges 2-1-1, in the present embodiment, because refrigerator drawer has two inner back-offs that are oppositely arranged, then lozenges 2-1-1 is two, be oppositely arranged, the rear end respectively faces down and extends to form take-up housing 2-1-3, take-up housing 2-1-3 both sides respectively are provided with a rectangular boss 2-1-4, simultaneously, also be provided with the skewed slot 2-1-2 that is complementary with Angle Pin body of rod 2-4-2 on the active sliding block 2-1, purpose is after Angle Pin 2-4 is fixed on Angle Pin head 2-4-1 on the solid plate by Angle Pin fixed block 2-3, among the skewed slot 2-1-2 on the Angle Pin body of rod 2-4-2 insertion active sliding block 2-1, "T"-shaped 2-8 is screwed on the lozenges 2-1-1 of active sliding block 2-1; Determined by the concrete shape of the shape of movable slider 2-2 by the back-off of the goods 4 of want moulding, be half cylindrical bulk by movable slider 2-2 in the present embodiment, one end is wedge shape end face 2-2-4, one end is that moulding glue position is by movable slider 2-2-2, have oblique "T"-shaped groove 2-2-1 on the wedge shape end face 2-2-4, "T"-shaped 2-8 embeds in the oblique "T"-shaped groove 2-2-1, and lozenges 2-1-1 cooperates with wedge shape end face 2-2-4 inclined-plane, thereby makes active sliding block 2-1 and be slidingly matched with the form of inclined ramp by movable slider 2-2.
The parts of the active sliding block that is slidingly connected 2-1 and moving platen 1 comprise sliding clamp 2-5 and wearing plate 2-6, slide block pressing plate 2-5 is provided with the screw post, have screw hole on the wearing plate 2-6, the two all is fixed on the moving platen 1 by screw, slide block pressing plate 2-5 is provided with on the bottom surface of screw post and has the breach 2-5-1 that is complementary with boss 2-1-4, active sliding block 2-1 is slidingly matched at the breach 2-5-1 of boss 2-1-4 place and slide block pressing plate 2-5, and the active sliding block 2-1 of slide block pressing plate 2-5 plays the effect of positioning and guiding; Wearing plate 2-6 is positioned at the below of take-up housing 2-1-3, and purpose is to prevent the moving platen 1 that weares and teares when active sliding block 2-1 slides; One limited block 2-7 is also fixedly arranged on the moving platen 1, be positioned at the rear of wearing plate 2-6, the slip of active sliding block 2-1 is played position-limiting action.
Had the spacing hole 2-2-3 of up/down perforation on the movable slider 2-2, a bar shaped limited post 2-9 is set in the spacing hole 2-2-3, limited post 2-9 one end passes spacing hole 2-2-3, and an end is fixed on to be inserted on 3, and limited post 2-9 is to being played position-limiting action by the slip of movable slider 2-2.
When assembling is used, Angle Pin 2-4 is inserted among the Angle Pin fixed block 2-3, be screwed on solid plate, with wearing plate 2-6, slide block pressing plate 2-5 is screwed on moving platen 1, "T"-shaped 2-8 is screwed on the lozenges 2-1-1 of active sliding block 2-1, the boss 2-1-4 of active sliding block 2-1 is embedded among the breach 2-5-1 of slide block pressing plate 2-5, take-up housing 2-1-3 places the top of wearing plate 2-6, to be inserted in 3 the slide block slot 3-1 of inserting by movable slider 2-2 then, limited post 2-9 is passed 3 insertions of inserting by among the spacing hole 2-2-3 on the movable slider 2-2, and with moving platen 1 limited post 2-9 one end is fixed on 3 places of inserting; Assemble by behind the movable slider 2-2, promote active sliding block 2-1, "T"-shaped 2-8 entered by in the oblique "T"-shaped groove 2-2-1 of movable slider 2-2; At last limited block 2-7 is mounted on the moving platen 1, the position is positioned at the rear of wearing plate 2-6.
When being the mould die sinking shown in Fig. 6-1 and Fig. 6-2, active sliding block 2-1 with by movable slider 2-2 relative motion initial state figure and done state figure.When injection machine drives the mould die sinking, Angle Pin 2-4 is fixed on the solid plate, moving platen 1 is along the injection machine axial-movement, active sliding block 2-1 under the guide effect of Angle Pin body of rod 2-4-2 driving effect and slide block pressing plate 2-5 with respect to moving platen 1 along the mould lateral movement, the face at its glide direction place is vertical with the face at mould die sinking direction place, the slip of the active sliding block 2-1 of limited block 2-7 is carried out spacing, be fixed on the active sliding block 2-1 "T"-shaped 2-8 be slidingly matched by the oblique "T"-shaped groove 2-2-1 on the movable slider 2-2, the folded acute angle scope of the direction of motion of the incline direction of oblique "T"-shaped groove 2-2-1 and active sliding block 2-1 is 15 °-45 °, select 30 ° in the present embodiment, the angle α of direction shown in arrow I among Fig. 6-1 and arrow II, wherein, direction shown in the arrow I is the glide direction of active sliding block 2-1, direction shown in the arrow II is the incline direction of oblique "T"-shaped groove 2-2-1, according to the mechanical movement principle, both sides by movable slider 2-2 under the pulling of active sliding block 2-1 to intermediary movements, be direction shown in arrow III and the arrow IV among Fig. 6-1, realize loosing core action.In like manner, when the mould matched moulds, Angle Pin body of rod 2-4-2 drives active sliding block 2-1 to the negative direction motion of direction shown in arrow I among Fig. 6-1, by movable slider 2-2 outwards motion under the promotion of active sliding block 2-1, it is the negative direction of direction shown in arrow III and the arrow IV among Fig. 6-1, spacing to being undertaken by movable slider 2-2 by the limited post 2-9 among the movable slider 2-2, finish resetting smoothly by movable slider 2-2.
Embodiment 2
Different with above-described embodiment is, active sliding block 2-1 and be slidingly matched by the inclined ramp between the movable slider 2-2 and be inverted "L" shaped piece 2-10 and oblique being slidingly matched of inverted "L" shaped groove 2-11, inverted "L" shaped piece 2-10 inserts among the oblique inverted "L" shaped groove 2-11, and namely " drag hook " structure inclined ramp cooperates shown in Fig. 7-1 and Fig. 7-2.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to the technical spirit of inventing.