CN103171103A - Silicone rubber core mold emptier of injection mold - Google Patents
Silicone rubber core mold emptier of injection mold Download PDFInfo
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- CN103171103A CN103171103A CN2013100812921A CN201310081292A CN103171103A CN 103171103 A CN103171103 A CN 103171103A CN 2013100812921 A CN2013100812921 A CN 2013100812921A CN 201310081292 A CN201310081292 A CN 201310081292A CN 103171103 A CN103171103 A CN 103171103A
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Abstract
The invention relates to a silicone rubber core mold emptier of an injection mold. The silicone rubber core mold emptier comprises upper and lower compound plates, wherein a locating ring and a sprue bushing are arranged in the upper compound plate; a mold cavity is arranged under the upper compound plate; a penetrated hole is formed in the lower compound plate; mold feet are arranged on the lower compound plate, and an upper and a lower ejector plates are arranged between the mold feet; ejector pins are arranged in the upper and lower ejector plates; a supporting plate arranged on the mold feet is connected with a lower core-retainer plate; the lower core-retainer plate is internally provided with a core, and an upper core-retainer plate is arranged on the core; plastic parts with inner threads are arranged among the mold cavity, the core and the upper core-retainer plate; and the ejector pins are contacted with the plastic parts with inner threads in penetrating manner. The silicone rubber core mold emptier is characterized in that the core is a polyurethane silicone rubber core, inner cavity is formed in the core, an inner core is formed in the inner cavity, a plug is arranged under the inner core, a mounting hole is formed in the supporting plate, the inner core is in threaded connection with the mounting hole of the supporting plate through the plug, an upper spring cavity is arranged on one side of the lower core-retainer plate, a lower spring cavity is arranged on one side of the supporting plate, and a spring is arranged between the upper spring cavity and the lower spring cavity.
Description
Technical field
The present invention relates to injection mold, particularly relate to injection mold silicon rubber core mould emptier.
Background technology
Injection mold is when manufacturing working of plastics, when the inwall of working of plastics is shaped with internal thread, traditional method is generally to adopt stripper plate or thimble to take off by force working of plastics, if the screw thread of working of plastics is higher, when the thread groove of corresponding core is darker, adopt the strong de-working of plastics that can make to rupture, or the internal thread of working of plastics break in the core thread groove, so not only the working of plastics percent defective is high, and affects next mold-closing injection.Therefore also someone has developed rotating mechanism has been installed in core, by rotating mechanism, drives the core rotation, makes the direction rotation demoulding of working of plastics along screw thread, such mould structure complexity, and volume is large, and manufacturing cost is high.If tapped working of plastics output is lower, and die manufacturing cost is high, affects productivity effect.
Summary of the invention
The objective of the invention is the shortcoming existed in order to overcome prior art, provide the strong off-square of a kind of tapped working of plastics just, yield rate is high, and injection mold structure is simple, reduces the injection mold silicon rubber core mould emptier of manufacturing cost.
The technical scheme of injection mold silicon rubber core mould emptier of the present invention is: comprise compound plate and lower compound plate, centring ring and gate bush are installed in upper compound plate, under upper compound plate, die cavity is installed, have perforation in lower compound plate, the mould pin is installed on lower compound plate, ejector retainner plate and lower ejector retainner plate are set between the mould pin, on, in lower ejector retainner plate, thimble is installed, the injection machine push rod contacts with lower ejector retainner plate through perforation, on the mould pin, gripper shoe is installed, connect lower core fixing plate on gripper shoe, in lower core fixing plate, core is installed, the core outer wall is shaped with thread groove, install core fixing plate on core, upper core fixing plate fixes through screw and lower core fixing plate, at die cavity, between core and upper core fixing plate, tapped working of plastics is arranged, thimble is through contacting with tapped working of plastics, it is characterized in that: described core is polyurethane silicon rubber core
,be shaped with cavity in core, inner core is set in cavity, under inner core, plug is installed, have installing hole in gripper shoe, inner core is threaded with the installing hole of gripper shoe through plug, described lower core fixing plate one side is shaped with the upper spring chamber, and gripper shoe one side is shaped with the lower spring chamber, in upper and lower spring cavity, spring is set.
The invention discloses a kind of injection mold silicon rubber core mould emptier, by core is made with the polyurethane silastic material, be shaped with cavity in core, inner core is set in cavity, under inner core, plug is installed, plug connects gripper shoe, during the demoulding, first by lower compound plate band dynamic model pin, gripper shoe, lower core fixing plate, core and upper core fixing plate move backward, after mould is opened, lower core fixing plate and core are opened from gripper shoe and lower core fixing plate under spring action, thereby make inner core partly exit core, make in core to form cavity, this band of compound plate continuation at present dynamic model pin, gripper shoe, lower core fixing plate, core and upper core fixing plate move backward, the injection machine push rod withstands lower ejector retainner plate through perforation, lower ejector retainner plate withstands ejector retainner plate and thimble, thimble withstands tapped working of plastics and deviates from from core, because core is that the polyurethane silastic material is made, polyurethane silastic material good springiness, make core there is certain elasticity, particularly after inner core partly exits core, form cavity in core, when tapped working of plastics takes off by force, tapped working of plastics extruding core, core is shunk to centre slightly, add the strain of thread groove, tapped working of plastics just can be deviate from the thread groove of core easily, be convenient in demoulding, yield rate is high, save existing core rotating mechanism, simple in structure, polyurethane silastic material cost is low, reduced die manufacturing cost.
Injection mold silicon rubber core mould emptier of the present invention, install guide pillar in described gripper shoe, in die cavity and lower core fixing plate, has the guide pillar hole, and guide pillar matches with the guide pillar hole.Guide pillar and guide pillar hole have been arranged, and while making mould make the folding mould, guiding is accurate, having stable behavior.Have stopper slot on described guide pillar, mounting limit pin on lower core fixing plate, spacer pin matches with stopper slot.Stopper slot and spacer pin have been arranged, made lower core fixing plate unlatching obtain spacing.
The accompanying drawing explanation
Fig. 1 is the matched moulds status architecture schematic diagram of injection mold silicon rubber core mould emptier;
Fig. 2 is the die opening state structural representation of injection mold silicon rubber core mould emptier;
Fig. 3 is the demoulding status architecture schematic diagram of injection mold silicon rubber core mould emptier.
The specific embodiment
The present invention relates to a kind of injection mold silicon rubber core mould emptier, as shown in Fig. 1-Fig. 3, comprise compound plate 1 and lower compound plate 2, centring ring 3 and gate bush 4 are installed in upper compound plate, upper compound plate is installed die cavity 51 time, have perforation 6 in lower compound plate 2, mould pin 7 is installed on lower compound plate, ejector retainner plate 8 and lower ejector retainner plate 9 are set between the mould pin, on, thimble 10 is installed in lower ejector retainner plate, injection machine push rod 11 contacts with lower ejector retainner plate 9 through perforation 6, gripper shoe 12 is installed on mould pin 7, connect lower core fixing plate 13 on gripper shoe, core 14 is installed in lower core fixing plate, the core outer wall is shaped with thread groove 25, install core fixing plate 15 on core, upper core fixing plate fixes through screw 16 and lower core fixing plate 13, at die cavity 5, tapped working of plastics 17 is arranged between core 14 and upper core fixing plate 15, thimble 10 is through contacting with tapped working of plastics 17, it is characterized in that: described core 14 is polyurethane silicon rubber core, be shaped with cavity 18 in core, inner core 19 is set in cavity, plug 20 is installed under inner core, have installing hole 21 in gripper shoe 12, inner core 19 is threaded with the installing hole 21 of gripper shoe 12 through plug 20, described lower core fixing plate 13 1 sides are shaped with upper spring chamber 22, gripper shoe 12 1 sides are shaped with lower spring chamber 23, upper, spring 24 is set in the lower spring chamber.By core 14 use polyurethane silastic materials are made, be shaped with cavity 18 in core, inner core 19 is set in cavity, plug 20 is installed under inner core, plug connects gripper shoe 12, during the demoulding, first by lower compound plate 2 band dynamic model pin 7, gripper shoe 12, lower core fixing plate 13, core 14 and upper core fixing plate 15 move backward, after mould is opened, lower core fixing plate and core are opened from gripper shoe 12 and lower core fixing plate 13 under spring 24 effects, thereby make inner core 19 parts exit core, make in core to form cavity 18, this band of compound plate continuation at present dynamic model pin 7, gripper shoe 12, lower core fixing plate 13, core 14 and upper core fixing plate 15 move backward, injection machine push rod 11 withstands lower ejector retainner plate 9 through perforation 6, lower ejector retainner plate withstands ejector retainner plate 8 and thimble 10, thimble withstands tapped working of plastics 17 and deviates from from core 14, because core is that the polyurethane silastic material is made, polyurethane silastic material good springiness, make core there is certain elasticity, particularly after inner core 19 parts exit core 14, form cavity 18 in core, when tapped working of plastics the last 17 takes off, tapped working of plastics extruding core, core is shunk to centre slightly, add the strain of thread groove 25, tapped working of plastics just can be deviate from the thread groove of core easily, be convenient in demoulding, yield rate is high, save existing core rotating mechanism, simple in structure, polyurethane silastic material cost is low, reduced die manufacturing cost.Guide pillar 26 is installed in described gripper shoe 12, in die cavity 5 and lower core fixing plate 13, is had guide pillar hole 27, guide pillar matches with the guide pillar hole.Guide pillar 26 and guide pillar hole 27 have been arranged, and while making mould make the folding mould, guiding is accurate, having stable behavior.Have stopper slot 28 on described guide pillar 26, mounting limit pin 29 on lower core fixing plate 13, spacer pin matches with stopper slot.Stopper slot 28 and spacer pin 29 have been arranged, made lower core fixing plate 13 unlatchings obtain spacing.
Claims (3)
1. injection mold silicon rubber core mould emptier, comprise compound plate (1) and lower compound plate (2), centring ring (3) and gate bush (4) are installed in upper compound plate, the lower die cavity (5) of installing of upper compound plate (1), have perforation (6) in lower compound plate (2), mould pin (7) is installed on lower compound plate, ejector retainner plate (8) and lower ejector retainner plate (9) are set between the mould pin, on, thimble (10) is installed in lower ejector retainner plate, injection machine push rod (11) contacts with lower ejector retainner plate (9) through perforation (6), in the upper gripper shoe (12) of installing of mould pin (7), connect lower core fixing plate (13) on gripper shoe, core (14) is installed in lower core fixing plate, the core outer wall is shaped with thread groove (25), install core fixing plate (15) on core, upper core fixing plate fixes through screw (16) and lower core fixing plate (13), in die cavity (5), between core (14) and upper core fixing plate (15), tapped working of plastics (17) is arranged, thimble (10) is through contacting with tapped working of plastics (17), it is characterized in that: described core (14) is polyurethane silicon rubber core, be shaped with cavity (18) in core, inner core (19) is set in cavity, plug (20) is installed under inner core, have installing hole (21) in gripper shoe (12), inner core (19) is threaded with the installing hole (21) of gripper shoe (12) through plug (20), described lower core fixing plate (13) one sides are shaped with upper spring chamber (22), gripper shoe (12) one sides are shaped with lower spring chamber (23), upper, spring (24) is set in the lower spring chamber.
2. injection mold silicon rubber core mould emptier as claimed in claim 1; it is characterized in that: guide pillar (26) is installed in described gripper shoe (12); have guide pillar hole (27) in die cavity (5) and lower core fixing plate (13), guide pillar matches with the guide pillar hole.
3. injection mold silicon rubber core mould emptier as claimed in claim 2 is characterized in that: have stopper slot (28) on described guide pillar (26), at the upper mounting limit pin (29) of lower core fixing plate (13), spacer pin matches with stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100812921A CN103171103A (en) | 2013-03-14 | 2013-03-14 | Silicone rubber core mold emptier of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100812921A CN103171103A (en) | 2013-03-14 | 2013-03-14 | Silicone rubber core mold emptier of injection mold |
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| Publication Number | Publication Date |
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| CN103171103A true CN103171103A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100812921A Pending CN103171103A (en) | 2013-03-14 | 2013-03-14 | Silicone rubber core mold emptier of injection mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878955A (en) * | 2014-03-21 | 2014-06-25 | 珠海市英诚电子科技有限公司 | Threaded core demoulding device and injection mould with threaded core demoulding device |
| CN105835278A (en) * | 2016-05-24 | 2016-08-10 | 麦克奥迪（厦门）电气股份有限公司 | Inner skirt edge-carried epoxy resin insulation part forming mold core and special method |
| CN111703035A (en) * | 2020-06-17 | 2020-09-25 | 鲁琳 | Ejection device of injection mold |
| CN111844648A (en) * | 2020-07-17 | 2020-10-30 | 许兼 | Injection mold for industrial production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069560A (en) * | 2009-11-25 | 2011-05-25 | 牟维军 | Demolding mechanism employing silicon rubber threaded core |
| CN102886873A (en) * | 2012-10-22 | 2013-01-23 | 台州市凯华塑业有限公司 | Mechanism for snapping pin-point gate through stationary mold push plate for injection mold |
| CN203210634U (en) * | 2013-03-14 | 2013-09-25 | 台州市凯华塑业有限公司 | Silicone rubber mold core release mechanism for plastic injection mold |
-
2013
- 2013-03-14 CN CN2013100812921A patent/CN103171103A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069560A (en) * | 2009-11-25 | 2011-05-25 | 牟维军 | Demolding mechanism employing silicon rubber threaded core |
| CN102886873A (en) * | 2012-10-22 | 2013-01-23 | 台州市凯华塑业有限公司 | Mechanism for snapping pin-point gate through stationary mold push plate for injection mold |
| CN203210634U (en) * | 2013-03-14 | 2013-09-25 | 台州市凯华塑业有限公司 | Silicone rubber mold core release mechanism for plastic injection mold |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878955A (en) * | 2014-03-21 | 2014-06-25 | 珠海市英诚电子科技有限公司 | Threaded core demoulding device and injection mould with threaded core demoulding device |
| CN103878955B (en) * | 2014-03-21 | 2015-04-08 | 珠海市英诚电子科技有限公司 | Threaded core demoulding device and injection mould with threaded core demoulding device |
| CN105835278A (en) * | 2016-05-24 | 2016-08-10 | 麦克奥迪（厦门）电气股份有限公司 | Inner skirt edge-carried epoxy resin insulation part forming mold core and special method |
| CN111703035A (en) * | 2020-06-17 | 2020-09-25 | 鲁琳 | Ejection device of injection mold |
| CN111703035B (en) * | 2020-06-17 | 2022-06-07 | 东莞市江霖五金实业有限公司 | Ejection device of injection mold |
| CN111844648A (en) * | 2020-07-17 | 2020-10-30 | 许兼 | Injection mold for industrial production |
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Application publication date: 20130626 |