CN200981326Y - Injection molding and compression molding double technique die with choked flow core - Google Patents
Injection molding and compression molding double technique die with choked flow core Download PDFInfo
- Publication number
- CN200981326Y CN200981326Y CN 200620126302 CN200620126302U CN200981326Y CN 200981326 Y CN200981326 Y CN 200981326Y CN 200620126302 CN200620126302 CN 200620126302 CN 200620126302 U CN200620126302 U CN 200620126302U CN 200981326 Y CN200981326 Y CN 200981326Y
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- choked flow
- flow core
- injection moulding
- core
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Abstract
The utility model relates to a plastic piece injection molding device, in particular to an injection compression mould double-technique mold of a optical plastics lens with a reducing flow core, comprising a dynamic mold (2), a static mold (1), a mold relief structure, a flexible mold core (5), a reducing flow core (6) and the driving structure of the reducing flow, wherein the end portion of the reducing flow core is equipped on the injection shaped chamber (12) as a first position, the end portion totally leaves the injection shaped chamber (12) as a second position, the flexible mold core and the reducing flow core (6) are drive connected with a driving mechanism, and the pressure injection and the mold leaving action of the flexible mold core (5) are respectively linkage connected with the reducing flow core (6) from the first position to the second position backward and from the second position to the first position forward. Since materials on the edge of the lens are inserted to the reducing flow core (6) of the injection shaped chamber (12) for blocking, the edge flowing speed of the utility model will correspondingly decreased, which can make materials on the middle and the edge reach nearly at the same time, and overcomes the deficit that the prior mold is easy to produce pox wire when injection molding super thick, super thin or/and un-uniform thick and thin plastic pieces.
Description
Technical field
The utility model relates to the injection moulding compression moulding duplex skill mould that has the choked flow core of working of plastics injection molding apparatus, particularly optical plastic lens.
Background technology
Injection mold generally is made up of parts such as dynamic model, quiet mould and mould emptiers, and the dynamic model die joint is provided with the injection moulding die cavity, on the quiet mould injection port is set.During injection mo(u)lding, behind the dynamic and static mould matched moulds, molten plastic injects from injection port, and from inlet one effluent of injection moulding die cavity to opposite side until full fully, pressurize then divides mould, the demoulding at last.But existing injection mold and Shooting Technique also exist some shortcomings, and be particularly more obvious when with polycarbonate (PC) and polymethyl methacrylate resins such as (PMMA) being the even working of plastics of the super-thin plastic spare produced of raw material and super-thick plastic parts or became uneven.Here the technology with PC production concave lens and astigmatic myopia eyeglass is example, general concave lens all is that the intermediate thin edge is thick, when so resin raw material is injected die cavity A district by charging aperture when only adopting injection mo(u)lding plastics flow will form fan-shaped, when raw material enters the B district by the A district, because the thick cause in concave lens intermediate thin edge, middle flow velocity slows down, and the edge is but quickening, when raw material entered the C district by the B district, this phenomenon was more obvious; When entering the D district, the raw material of lens edge has been mapped to the position basically, and that the centre stops is motionless; And will form the slit of obvious butt joint when at this moment raw material is mapped to the E district by the D district, i.e. our said acne silk (referring to Fig. 1) usually.The formation of acne silk will influence the scope of application of eyeglass and the quality of eyeglass; The edge of concave lens is blocked up in addition, and the pressurize of injection mo(u)lding be can't make the marginal density of eyeglass reach requirement the time, and the edge will form contraction.The formation of shrinking will make eyeglass astigmatism occur, and influences wearer's eyesight.During the ultra-thin working of plastics of injection mo(u)lding when (wall thickness is at 0.100mm), raw material just is difficult to injection and puts in place in addition, and (wall thickness is more than 4.00) have to shrink to produce and be difficult to and solve when injecting super thick working of plastics.
The utility model content
The purpose of this utility model is to provide a kind of injection mold that can not produce butt joint slit (acne silk) and shrinkage phenomenon when the working of plastics of super thick, the ultra-thin or/and became uneven of injection mo(u)lding for overcoming the deficiencies in the prior art.
In order to achieve the above object; the utility model has adopted following technical solution: a kind of injection moulding compression moulding duplex skill mould that has the choked flow core; comprise dynamic model; quiet mould and mould emptier; at least the running channel that is provided with one group of injection moulding die cavity on the dynamic model die joint and is communicated with the injection moulding die cavity; quiet mould is provided with injection port; it is characterized in that: the described injection moulding compression moulding duplex skill mould that has the choked flow core also is provided with movable core rod; choked flow core and their driving mechanism; the dynamic model body is provided with the perforation post hole consistent with the moulding profile, cross section; described movable core rod liquid is close to be arranged in the described perforation post hole movingly; space between the die joint of movable core rod end face and post hole wall and quiet mould constitutes described injection moulding die cavity; each injection moulding die cavity both sides is along also respectively being provided with the choked flow core chute that is communicated with the injection moulding die cavity through injection moulding die cavity center and with the vertical straight line symmetry of running channel on the described die joint; a pair of choked flow core liquid is close to be arranged in the choked flow core chute movingly; described choked flow core end is arranged in the injection moulding die cavity and is primary importance; it is the second place that the end is withdrawed from the injection moulding die cavity fully; described choked flow core leading section can be wedge shape; movable core rod and choked flow core and driving mechanism are in transmission connection; and the compression moulding action of movable core rod and choked flow core retreat to second place interlock from primary importance, and the mould action of moving back of movable core rod proceeds to the primary importance interlock with the choked flow core from the second place.
Further setting of the present utility model: described driving mechanism is by the horizontal motion block of wedge shape, vertical motion block, paired symmetrically arranged choked flow core support and gangbar, gangbar support and oil cylinder constitute, laterally motion block is the wedge shape of one-sided inclination with vertical motion block, described horizontal motion block, vertical motion block inclined-plane is sticked mutually and puts, vertical motion block is last, be provided with guide chute each other, described movable core rod is fixed on plane on the vertical motion block, laterally motion block is distolateral is connected with oil cylinder, described choked flow core outboard end is fixed in the choked flow core support and is vertical with horizontal motion block moving direction, the gangbar support is fixedlyed connected with horizontal motion block, gangbar one end is fixed on the gangbar support and is set in parallel in the both sides of dynamic model and quiet mould with horizontal motion block moving direction, the described gangbar other end is made the low-angle invagination relatively, described choked flow core support is provided with the interlock guide hole that matches with gangbar cross section and invagination angle, and the gangbar leading portion is inserted in movingly in the interlock guide hole and constitutes described interlock.
Of the present utility model further the setting again is: described guide chute is a T-slot.
Of the present utility model further the setting can also be: be provided with the storing pit that several are communicated with the injection moulding die cavity around connecting the post hole on the described die joint, described storing pit is arranged on away from a side of inlet and is symmetrically distributed.
Adopt the injection mold of said structure, when raw material enters the A district by charging aperture, and from A
When the district entered the B district, because the injection moulding die cavity is reserved with the space of compression moulding, so thick compared with meeting in the middle of the general eyeglass, flow that raw material is injected and edge difference were not obvious; Subsequently when movable core rod when upwards extruding raw material flows to the C district by the B district under the promotion of core rod driving mechanism, because the choked flow core that the raw material of lens edge part is inserted in the injection moulding die cavity stops, the edge flow velocity will slow down accordingly, and almost arrive the E district with the edge raw material simultaneously through the D district in the middle of making, the slit that does not have butt joint has just solved the disadvantage (referring to Fig. 2) of acne silk.Movable core rod further continued upwards extruding after raw material was penetrated full die cavity, and the marginal density that makes choked flow core end withdraw from injection moulding die cavity and concave lens fully reaches consistent (principle of compression moulding) and do not shrink (referring to Fig. 3) with middle density.
Take out eyeglass with the die-sinking device of injection machine and liftout attachment on eyeglass again after cooling off fully.
When the working of plastics that forming wall approaches, thickness middle during owing to injection moulding is in the scope of injection moulding, so when raw material is mapped to certain scope, just can adopt compression-molding process to make profiled member meet the requirements of thickness (0.100mm).
Under the situation of working of plastics wall thickness because wall thickness and the pressurize of injection moulding can't make plastic shrink when reaching requirement, also can with first injection moulding again the technology of compression moulding make the density of working of plastics reach requirement.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
The flow process schematic diagram of resin raw material when Fig. 1 is the prior art injection mo(u)lding;
The flow process schematic diagram of resin raw material when Fig. 2 is the utility model injection mo(u)lding;
Fig. 3 is the utility model mold actions schematic diagram;
Fig. 4 is that the quiet mould of the utility model specific embodiment decomposes the back schematic diagram;
Fig. 5 is the utility model specific embodiment broken section structural representation;
Fig. 6 is the utility model specific embodiment STRUCTURE DECOMPOSITION schematic diagram;
The specific embodiment
Specific embodiment: the injection forming mold that is arranged on the optical plastic lens on the dynamic model 2 with movable core rod 5 is an example.The injection moulding compression moulding duplex skill mould that has the choked flow core comprises dynamic model 2, quiet mould 1, mould emptier and movable core rod 5, choked flow core 6 and their driving mechanism, at least be provided with one group of injection moulding die cavity 12 specific embodiment on dynamic model 2 die joints and be provided with 2 groups and the running channel 13 that is communicated with injection moulding die cavity 12, quiet mould 1 is provided with injection port 8 running channels 13 and is communicated with, dynamic model 2 bodies are provided with the perforation post hole consistent with the eyeglass profile, cross section, described movable core rod 5 liquid are close to be arranged in the described perforation post hole movingly, and can endwisely slip in the driving lower edge of core rod driving mechanism, core rod 5 end faces and post hole wall and another slit bamboo or chopped wood mould are that the space between quiet mould 1 die joint constitutes described injection moulding die cavity 12, each injection moulding die cavity 12 both sides is along also being provided with a pair of choked flow core chute 11 that is communicated with injection moulding die cavity 12 through injection moulding die cavity 12 centers and with the vertical straight line symmetry of running channel 13 on the described die joint, liquid is close respectively is arranged on movingly in the choked flow core chute 11 for a pair of choked flow core 6, driving mechanism is by the horizontal motion block 4 of wedge shape, vertical motion block 3, paired symmetrically arranged choked flow core support 14 and gangbar 15, gangbar support 16 and oil cylinder 9 constitute, laterally motion block 4 is the wedge shape of one-sided inclination with vertical motion block 3, described horizontal motion block 4, vertical motion block 3 inclined-planes are sticked mutually and put, vertical motion block 3 is last, be provided with guide chute 10 each other, guide chute 10 can be T-slot or dovetail groove; Described movable core rod 5 is fixed on plane on the vertical motion block 3, laterally motion block 4 is distolateral is connected with oil cylinder 9, described choked flow core 6 and guide chute 10 cross sections are generally rectangle, be horizontally disposed with, outboard end is fixed in the choked flow core support 14 and is vertical with horizontal motion block 4 moving directions, gangbar support 16 is fixedlyed connected with horizontal motion block 4, gangbar 15 is arranged on the both sides that are provided with choked flow core 6, one end is fixed on the gangbar support 16 and is parallel with horizontal motion block 4 moving directions, described gangbar 15 other ends are made the low-angle invagination relatively, described choked flow core support 14 is provided with the interlock guide hole 17 that matches with gangbar 15 cross sections and invagination angle, gangbar 15 leading portions are inserted in movingly in the interlock guide hole 17 and constitute described interlock, and the rising compression moulding action of movable core rod 5 and choked flow core 6 retreat to second place interlock from primary importance, the mould action of moving back of movable core rod 5 proceeds to the primary importance interlock with choked flow core 6 from the second place, gangbar 15 invagination angles and horizontal motion block 4, vertical motion block 3 inclined-plane gradients and shift length will make movable core rod 5 when initial position, described choked flow core 6 ends are arranged in injection moulding die cavity 12 and are primary importance, when 5 risings of vertical motion block 3 promotion activity core rods put in place, it is the second place that choked flow core 6 ends are just in time withdrawed from injection moulding die cavity 12 fully, choked flow core 6 leading sections are preferably wedge shape, strong more the closer to the edge resistance flowing effect like this, almost arrive the E district with the edge raw material simultaneously through the D district in the middle of making better.
Originally the injection moulding compression moulding duplex skill mould that has the choked flow core is because injection moulding die cavity 12 is reserved with the space of compression moulding, the raw material amount of injecting is bigger than traditional big mould, in the time only can't reaching satisfied effect with choked flow core 6, be provided with the storing pit 7 that several are communicated with injection moulding die cavity 12 around can also on die joint, connecting the post hole, described storing pit 7 is arranged on away from a side of inlet and is symmetrically distributed, 2 storing pits 77 of operated by rotary motion get final product, like this when movable core rod 5 upwards pushes, the part material at edge can flow in the storing pit 77 accordingly, the flow velocity at edge has further slowed down, and almost arrive the E district simultaneously with the edge raw material in the middle of making, do not have the slit of butt joint, the disadvantage that has just solved the acne silk is referring to Fig. 2.
Claims (6)
1; a kind of injection moulding compression moulding duplex skill mould that has the choked flow core; comprise dynamic model (2); quiet mould (1) and mould emptier; at least the running channel (13) that is provided with one group of injection moulding die cavity (12) on dynamic model (2) die joint and is communicated with injection moulding die cavity (12); quiet mould (1) is provided with injection port (8); it is characterized in that: described injection moulding compression moulding duplex skill mould also is provided with movable core rod (5); choked flow core (6) and their driving mechanism; dynamic model (2) body is provided with the perforation post hole consistent with the moulding profile, cross section; described movable core rod (5) liquid is close to be arranged in the described perforation post hole movingly; space between the die joint of movable core rod (5) end face and post hole wall and quiet mould (1) constitutes described injection moulding die cavity (12); each injection moulding die cavity (12) both sides is along also respectively being provided with the choked flow core chute (11) that is communicated with injection moulding die cavity (12) through injection moulding die cavity (12) center and with the vertical straight line symmetry of running channel (13) on the described die joint; a pair of choked flow core (6) liquid is close to be arranged in the choked flow core chute (11) movingly; described choked flow core (6) end is arranged in injection moulding die cavity (12) and is primary importance; the end is withdrawed from injection moulding die cavity (12) fully and is the second place; movable core rod and choked flow core (6) are in transmission connection with driving mechanism; and the compression moulding action of movable core rod (5) and choked flow core (6) retreat to second place interlock from primary importance, and the mould action of moving back of movable core rod (5) proceeds to the primary importance interlock with choked flow core (6) from the second place.
2, the injection moulding compression moulding duplex skill mould that has the choked flow core according to claim 1, it is characterized in that: described driving mechanism is by the horizontal motion block (4) of wedge shape, vertical motion block (3), paired symmetrically arranged choked flow core support (14) and gangbar (15), gangbar support (16) and oil cylinder (9) constitute, laterally motion block (4) is the wedge shape of one-sided inclination with vertical motion block (3), described horizontal motion block (4), vertical motion block (3) inclined-plane is sticked mutually and puts, vertical motion block (3) is last, be provided with guide chute (10) each other, described movable core rod (5) is fixed on vertical motion block (3) and goes up the plane, laterally motion block (4) is distolateral is connected with oil cylinder (9), it is last and vertical with horizontal motion block (4) moving direction that described choked flow core (6) outboard end is fixed on choked flow core support (14), gangbar support (16) is fixedlyed connected with horizontal motion block (4), gangbar (15) one ends are fixed on that gangbar support (16) is gone up and are set in parallel in the both sides of dynamic model (2) and quiet mould (1) with horizontal motion block (4) moving direction, described gangbar (15) other end is made the low-angle invagination relatively, described choked flow core support (14) is provided with the interlock guide hole (17) that matches with gangbar (15) cross section and invagination angle, and gangbar (15) leading portion is inserted in movingly and constitutes described interlock in the interlock guide hole (17).
3, the injection moulding compression moulding duplex skill mould that has the choked flow core according to claim 2, be characterised in that: described guide chute (10) is a T-slot.
4, the injection moulding compression moulding duplex skill mould that has the choked flow core according to claim 3, it is characterized in that: described choked flow core (6) leading section is a wedge shape.
5, according to claim 1 or 2 or the 3 or 4 described injection moulding compression moulding duplex skill moulds that have the choked flow core, it is characterized in that: be provided with the storing pit (7) that several are communicated with injection moulding die cavity (12) around connecting the post hole on the described die joint, described storing pit (7) is arranged on away from a side of inlet and is symmetrically distributed.
6, the injection moulding compression moulding duplex skill mould that has the choked flow core according to claim 5, it is characterized in that: the described injection moulding compression moulding duplex skill every group of injection moulding die cavity of mould (12) that has the choked flow core is provided with 2 storing pits (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126302 CN200981326Y (en) | 2006-10-09 | 2006-10-09 | Injection molding and compression molding double technique die with choked flow core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126302 CN200981326Y (en) | 2006-10-09 | 2006-10-09 | Injection molding and compression molding double technique die with choked flow core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200981326Y true CN200981326Y (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620126302 Expired - Fee Related CN200981326Y (en) | 2006-10-09 | 2006-10-09 | Injection molding and compression molding double technique die with choked flow core |
Country Status (1)
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| CN (1) | CN200981326Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585226B (en) * | 2008-05-20 | 2012-11-21 | 鸿富锦精密工业（深圳）有限公司 | Lens forming die and forming method thereof |
| CN102941649A (en) * | 2012-10-31 | 2013-02-27 | 苏州吴中经济开发区搏宇模具加工厂 | Molding plastic mold for pet brush matrix |
| CN104401267A (en) * | 2014-12-08 | 2015-03-11 | 成都航天模塑股份有限公司 | Back column upper decoration plate and mold and injection molding method thereof |
| CN104494531A (en) * | 2014-12-08 | 2015-04-08 | 成都航天模塑股份有限公司 | Rear-column lower decoration plate and mold thereof as well as injection molding method |
| CN104494530A (en) * | 2014-12-08 | 2015-04-08 | 成都航天模塑股份有限公司 | Sidewall-opened type deep hole structure, mold of structure and injection molding method of mold |
| CN113600781A (en) * | 2021-06-30 | 2021-11-05 | 荣耀终端有限公司 | Die-casting die, die-casting forming method of terminal structural part and terminal |
-
2006
- 2006-10-09 CN CN 200620126302 patent/CN200981326Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585226B (en) * | 2008-05-20 | 2012-11-21 | 鸿富锦精密工业（深圳）有限公司 | Lens forming die and forming method thereof |
| CN102941649A (en) * | 2012-10-31 | 2013-02-27 | 苏州吴中经济开发区搏宇模具加工厂 | Molding plastic mold for pet brush matrix |
| CN104401267A (en) * | 2014-12-08 | 2015-03-11 | 成都航天模塑股份有限公司 | Back column upper decoration plate and mold and injection molding method thereof |
| CN104494531A (en) * | 2014-12-08 | 2015-04-08 | 成都航天模塑股份有限公司 | Rear-column lower decoration plate and mold thereof as well as injection molding method |
| CN104494530A (en) * | 2014-12-08 | 2015-04-08 | 成都航天模塑股份有限公司 | Sidewall-opened type deep hole structure, mold of structure and injection molding method of mold |
| CN104401267B (en) * | 2014-12-08 | 2016-12-07 | 成都航天模塑股份有限公司 | Rear pillar upper decoration plate and mould thereof and injection moulding process |
| CN113600781A (en) * | 2021-06-30 | 2021-11-05 | 荣耀终端有限公司 | Die-casting die, die-casting forming method of terminal structural part and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20121009 |