CN102873836B - Threaded core start angle device with precise resetting function - Google Patents
Threaded core start angle device with precise resetting function Download PDFInfo
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- CN102873836B CN102873836B CN201210371242.2A CN201210371242A CN102873836B CN 102873836 B CN102873836 B CN 102873836B CN 201210371242 A CN201210371242 A CN 201210371242A CN 102873836 B CN102873836 B CN 102873836B
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- spiral
- core
- tooth bar
- son
- mould
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Abstract
The invention discloses a threaded core start angle device with a precise resetting function. The threaded core start angle device comprises spiral core pullers (1), guide nuts (2), a rack (3), a cylinder (4), a connecting rod (5), a travel adjusting block (6) and travel switches (7). The technical scheme of the device consisting of mechanisms includes that special-shaped gears with stopping bumps are arranged on the spiral core pullers, during operation, the rack is driven by the cylinder and drives the spiral core pullers to rotate via the special-shaped gears, guide threads arranged on upper portions of the spiral core pullers are guided by the guide nuts fixed into molds so as to drive the spiral core pullers to spirally move axially, and spiral core pulling and resetting start angular positions of the spiral core pullers are precisely limited by the stopping bumps of the special-shaped gears. The start angular positions are precisely limited by the stopping bumps of the special-shaped gears, so that during injection molding production by injection molds for threaded products, purposes of reducing work intensity and cost, improving production efficiency, increasing qualified rate and meeting the requirement on automatic production are achieved.
Description
Technical field
The spiral that the present invention relates to injection mold stripper apparatus of loosing core, specifically refers to one for extracting by spiral the thread core that embeds injection-molded item screw thread profile out the demoulding thread core initial angle device that accurately resets.
Background technology
The injection mold of screw thread based article must be with the spiral demoulding of loosing core, and prior art has rack-gear type and electric motor type, and wherein, rack-gear type is will to embed the demoulding of loosing core of thread core spiral in injection-molded item screw thread profile by the rotation of oil cylinder pushing rack drives gear; Electric motor type is to utilize the motor that is located at mould outside to drive the screw thread rotation core rotary core pulling of mould inside to deviate from thread plastic part goods; Although above-mentioned prior art be provided with limit switch to after loosing core with reset after the position of screw thread rotation core limited, but because the limit accuracy of limit switch is on the low side and be easy to drift, in order to make the screw thread starting point of goods keep highly consistent, just must be before each matched moulds, by manual intervention, by specific purpose tool rotation core body and elastic positioning pin butt, the screw thread starting point of screw thread rotation core is resetted; Manual intervention resetting exists human negligence to produce the hidden danger of waste product, and in addition, working strength is large, production efficiency is low, cost is high, produces necessary Attended mode, is not suitable for the scale automated production requirement of unmanned, people's multimachine; Therefore, prior art exists that working strength is large, production efficiency is low, qualification rate is low, cost is high, problems and shortcomings that can not automated production.
Summary of the invention
The problems and shortcomings that exist for above-mentioned prior art, the present invention adopts by spiral of loosing core, guiding nut, tooth bar, oil cylinder, connecting rod, stroke adjustment piece, the device that travel switch forms, on spiral is loosed core son, be provided with and stop protruding special shape gear, when work, drive loose core son rotation of spiral by hydraulic oil cylinder driving tooth bar through special shape gear, be located at the loose core guiding screw thread on sub-top of spiral and drive spiral of loosing core for the helical movement vertically by being fixed on the guiding of guiding nut in mould, utilize the protruding accurate restriction spiral of prevention of the special shape gear spiral of loosing core to loose core and the technical scheme of the initial angle position resetting, a kind of accurately reset thread core initial angle device is provided, be intended to the protruding accurate restriction initial angle of the prevention position by special shape gear, make the injection moulding production of screw thread based article injection mold reach reduction working strength, enhance productivity, improve qualification rate, reduce costs, meet the object of automated production.
The object of the present invention is achieved like this: a kind of accurately reset thread core initial angle device, comprise spiral of loosing core, guiding nut, tooth bar, oil cylinder, connecting rod, stroke adjustment piece, travel switch, wherein: described spiral is loosed core son for being the steel components of cylinder step, the top cylinder that spiral is loosed core sub is provided with trapezoidal externally threaded guiding screw thread, the middle part cylinder that spiral is loosed core sub is provided with the special shape gear of cylindrical straight gear involute teeth, the outer rim of described special shape gear is provided with a protrusion, the projection that occupies three tooth pitch width be called stop protruding, the spiral bottom of loosing core is provided with the thread core identical with goods screw thread profile shape,
Centered by described guiding nut, be provided with the cylindrical steel member of trapezoidal internal thread;
Described tooth bar is the rectangle elongated rod shape steel components that a side is provided with trapezoidal teeth, and the side that tooth bar is provided with described trapezoidal teeth is called flank, has the side that flank is relative to be called without flank with described;
The number of teeth of described trapezoidal teeth equates with the number of teeth of the described involute teeth of described special shape gear, the described part that has flank to be provided with described trapezoidal teeth is called tooth section, described two limits, left and right that have tooth section are that plane is called anodontia plane, the loose core described involute teeth engagement fit of described special shape gear of son of the described trapezoidal teeth of tooth bar and spiral;
Described oil cylinder is the hydraulically extensible executive component being made up of cylinder body and piston rod;
Described connecting rod is cylindrical shaft-like steel components;
Described stroke adjustment piece is the cylinder tube shape steel components that two end outer cylinders are provided with chamfer;
Described travel switch is to be provided with often to start to close and the normally closed moving actuating type electric switch of opening contact;
Loose core described guiding screw thread and the guiding nut slip of son of spiral screws and is connected;
The loose core described heteromorphic teeth wheel and rack of son of spiral is connected with a joggle, in the time of the initial state of mould closure, the described prevention of described special shape gear protruding with described in tooth bar, have tooth section described anodontia plane contact on one side; The described tooth bar sliding groove wall sliding-contact without flank and the setting of mould support plate of tooth bar, one end of tooth bar is fixedly connected with the piston rod of oil cylinder; The piston rod top that one end of connecting rod is positioned at oil cylinder is fixedly connected with tooth bar by contiguous block, and two stroke adjustment pieces are enclosed within on the other end of connecting rod and are fixedly connected with connecting rod;
Application connects, the cylinder body of oil cylinder is fixedly connected with the support plate of mould, guiding nut is positioned at mould inside and is fixedly connected with the support plate of mould, the loose core described thread core of son of spiral is positioned at the die cavity position of mould molding goods screw thread profile, two travel switches are fixedly connected on the outer wall of mould side by side, and the contact of two travel switches lays respectively at the correspondence position touching for two stroke adjustment pieces.
Operation principle and beneficial effect
While loosing core, hydraulic oil cylinder driving tooth bar drives loose core son rotation of spiral through special shape gear, being fixed on the guiding of guiding nut in mould is located at the loose core guiding screw thread on sub-top of spiral and drives spiral to loose core son vertically do the spiral motion of loosing core, meanwhile, with the rotation of special shape gear, described prevention is protruding in there being tooth section described anodontia plane on one side to go to and the described described anodontia plane contact that has tooth section another side described in tooth bar, looses core complete;
When reset, hydraulic oil cylinder driving tooth bar resets under special shape gear drive spiral is loosed core the guiding of son at guiding nut, described prevention is protruding in there being the described anodontia plane of tooth section another side to go to and the described described anodontia plane contact that has tooth section one side described in tooth bar, resets and finishes.
This device due to utilize the prevention of special shape gear protruding accurately define with the described anodontia plane contact of tooth bar spiral Core-pulling distance that spiral looses core sub from reset after the position of initial angle; The object that this device arranges connecting rod, stroke adjustment piece, travel switch is to ensure the operating efficiency of mould,, oil cylinder is very fast by the response speed of travel switch, and stop the speed responding by hydraulic system after the anodontia plane contact of protruding and tooth bar slower, therefore the two combination, both accurately ensured spiral Core-pulling distance that spiral looses core sub from reset after initial angle position, ensured again the operating efficiency of mould; In the time that drift occurs for the limit accuracy of travel switch, the effect of inertia of hydraulic system still can ensure the keying of travel switch, and do not hinder stop protruding accurately ensure spiral Core-pulling distance that spiral looses core sub from reset after the function of initial angle position.
This device both can install the cover half part at mould, also can install the dynamic model part at mould; Both can form simply connected and applied by loose core son and guiding nut of a secondary spiral, also can form duplex or multi-joint application by loose core sub and guiding nut of second mate or how secondary spiral; This device is loosed core and is resetted and make the injection moulding production of screw thread based article injection mold for the accurate setting screw spiral of loosing core, avoid the drawback of prior art Manual intervention resetting, reduce working strength, improved production efficiency, improved qualification rate, reduced cost, met the requirement of automated production.
Above-mentioned, the present invention adopts by spiral of loosing core, guiding nut, tooth bar, oil cylinder, connecting rod, stroke adjustment piece, the device that travel switch forms, on spiral is loosed core son, be provided with and stop protruding special shape gear, when work, drive loose core son rotation of spiral by hydraulic oil cylinder driving tooth bar through special shape gear, be located at the loose core guiding screw thread on sub-top of spiral and drive spiral of loosing core for the helical movement vertically by being fixed on the guiding of guiding nut in mould, utilize the protruding accurate restriction spiral of prevention of the special shape gear spiral of loosing core to loose core and the technical scheme of the initial angle position resetting, overcome prior art and existed working strength large, production efficiency is low, qualification rate is low, cost is high, problems and shortcomings that can not automated production, the one the providing thread core initial angle device that accurately resets, by the protruding accurate restriction initial angle of the prevention position of special shape gear, produces the injection moulding of screw thread based article injection mold and has reached reduction working strength, enhance productivity, improve qualification rate, reduce costs, meet the object of automated production.
Brief description of the drawings
Fig. 1 is the structure cross-sectional schematic of a kind of accurate reset thread core initial angle device of the present invention, is the spiral of duplex loose core son and guiding nut in figure;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 be in Fig. 2 A portion draw enlarged drawing;
Fig. 4 is that the axle of Fig. 1 measures intention;
Fig. 5 is that Fig. 1 shown device is arranged in a kind of schematic diagram of applying mould position.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: spiral loose core son 1, thread core 11, guiding screw thread 12, special shape gear 13, stop protruding 131, guiding nut 2, tooth bar 3, oil cylinder 4, connecting rod 5, stroke adjustment piece 6, travel switch 7, cover half 01, dynamic model 02, goods 03.
Detailed description of the invention
Consult Fig. 1～Fig. 5, the one of the present invention thread core initial angle device that accurately resets, comprise spiral loose core son 1, guiding nut 2, tooth bar 3, oil cylinder 4, connecting rod 5, stroke adjustment piece 6, travel switch 7, wherein: described spiral is loosed core son 1 for being the steel components of cylinder step, spiral 1 the top cylinder of loosing core is provided with trapezoidal externally threaded guiding screw thread 12, spiral 1 the middle part cylinder of loosing core is provided with the special shape gear 13 of cylindrical straight gear involute teeth, the outer rim of described special shape gear 13 is provided with a protrusion, the projection that occupies three tooth pitch width is called and stops protruding 131, spiral 1 the bottom of loosing core is provided with the thread core 11 identical with goods screw thread profile shape,
Centered by described guiding nut 2, be provided with the cylindrical steel member of trapezoidal internal thread;
Described tooth bar 3 is the rectangle elongated rod shape steel components that a side is provided with trapezoidal teeth, and the side that tooth bar 3 is provided with described trapezoidal teeth is called flank, has the side that flank is relative to be called without flank with described;
The number of teeth of described trapezoidal teeth equates with the number of teeth of the described involute teeth of described special shape gear 13, the described part that has flank to be provided with described trapezoidal teeth is called tooth section, described two limits, left and right that have tooth section are that plane is called anodontia plane, the loose core described involute teeth engagement fit of son 1 described special shape gear 13 of the described trapezoidal teeth of tooth bar 3 and spiral;
The hydraulically extensible executive component of described oil cylinder 4 for being formed by cylinder body and piston rod;
Described connecting rod 5 is cylindrical shaft-like steel components;
Described stroke adjustment piece 6 is the cylinder tube shape steel components that two end outer cylinders are provided with chamfer;
Described travel switch 7 closes and the normally closed moving actuating type electric switch of opening contact for being provided with often to start;
Spiral 1 the described guiding screw thread 12 of loosing core screws and is connected with guiding nut 2 slips;
Spiral 1 the described special shape gear 13 of loosing core is connected with a joggle with tooth bar 3, in the time of the initial state of mould closure, the described prevention protruding 131 of described special shape gear 13 with described in tooth bar 3, have tooth section described anodontia plane contact on one side; The described tooth bar sliding groove wall sliding-contact without flank and the setting of mould support plate of tooth bar 3, one end of tooth bar 3 is fixedly connected with the piston rod of oil cylinder 4; The piston rod top that one end of connecting rod 5 is positioned at oil cylinder 4 is fixedly connected with tooth bar 3 by contiguous block, and two stroke adjustment pieces 6 are enclosed within on the other end of connecting rod 5 and are fixedly connected with connecting rod 5;
Application connects, the cylinder body of oil cylinder 4 is fixedly connected with the support plate of mould, guiding nut 2 is positioned at mould inside and is fixedly connected with the support plate of mould, spiral 1 the described thread core 11 of loosing core is positioned at the die cavity position of mould molding goods 03 screw thread profile, two travel switches 7 are fixedly connected on the outer wall of mould side by side, and the contact of two travel switches 7 lays respectively at for two correspondence positions that stroke adjustment piece 6 touches.
Operation principle and beneficial effect
While loosing core, oil cylinder 4 drive tooth bar 3 through special shape gear 13 drive spiral loose core son 1 rotation, being fixed on 2 guiding of guiding nut in mould is located at the loose core guiding screw thread 12 on sub 1 top of spiral and drives spiral to loose core son 1 vertically do the spiral motion of loosing core, meanwhile, with the rotation of special shape gear 13, described prevention protruding 131, from there being tooth section described anodontia plane on one side to go to and the described described anodontia plane contact that has tooth section another side described in tooth bar 3, is loosed core complete;
When reset, oil cylinder 4 drives tooth bar 3 to drive spiral of loosing core 1 under the guiding of guiding nut 2, to reset through special shape gear 13, described prevention protruding 131, from there being the described anodontia plane of tooth section another side to go to and the described described anodontia plane contact that has tooth section one side described in tooth bar 3, resets and finishes.
This device accurately define owing to utilizing the prevention protruding 131 of special shape gear 13 and the described anodontia plane contact of tooth bar 3 spiral loose core son 1 spiral Core-pulling distance from reset after the position of initial angle; The object that this device arranges connecting rod 5, stroke adjustment piece 6, travel switch 7 is to ensure the operating efficiency of mould,, oil cylinder 4 is very fast by the response speed of travel switch 7, and stop protruding 131 with the anodontia plane contact of tooth bar 3 after the speed that responds by hydraulic system slower, therefore the two combination, both accurately ensured spiral loose core son 1 spiral Core-pulling distance from reset after initial angle position, ensured again the operating efficiency of mould; In the time that drift occurs for the limit accuracy of travel switch 7, the effect of inertia of hydraulic system still can ensure the keying of travel switch 7, and do not hinder stop protruding 131 accurately ensure spiral loose core son 1 spiral Core-pulling distance from reset after the function of initial angle position.
This device both can install cover half 01 part at mould, also can install dynamic model 02 part at mould; Both can form simply connected application by loose core son 1 and guiding nut 2 of a secondary spiral, also can form duplex or multi-joint application by loose core son 1 and guiding nut 2 of second mate or how secondary spiral; This device is loosed core and is resetted and make the injection moulding production of screw thread based article injection mold for accurate setting screw 1 the spiral of loosing core, avoid the drawback of prior art Manual intervention resetting, reduce working strength, improved production efficiency, improved qualification rate, reduced cost, met the requirement of automated production.
Claims (1)
1. an accurate reset thread core initial angle device, comprise spiral (1) of loosing core, guiding nut (2), tooth bar (3), oil cylinder (4), connecting rod (5), stroke adjustment piece (6), travel switch (7), it is characterized in that: described spiral is loosed core son (1) for being the steel components of cylinder step, the loose core top cylinder of son (1) of spiral is provided with trapezoidal externally threaded guiding screw thread (12), the loose core middle part cylinder of son (1) of spiral is provided with the special shape gear (13) of cylindrical straight gear involute teeth, the outer rim of described special shape gear (13) is provided with a protrusion, the projection that occupies three tooth pitch width is called and stops protruding (131), the loose core bottom of son (1) of spiral is provided with the thread core (11) identical with goods screw thread profile shape,
Centered by described guiding nut (2), be provided with the cylindrical steel member of trapezoidal internal thread;
Described tooth bar (3) is the rectangle elongated rod shape steel components that a side is provided with trapezoidal teeth, and the side that tooth bar (3) is provided with described trapezoidal teeth is called flank, has the side that flank is relative to be called without flank with described;
The number of teeth of described trapezoidal teeth equates with the number of teeth of the described involute teeth of described special shape gear (13), the described part that has flank to be provided with described trapezoidal teeth is called tooth section, described two limits, left and right that have tooth section are that plane is called anodontia plane, the loose core described involute teeth engagement fit of described special shape gear (13) of son (1) of the described trapezoidal teeth of tooth bar (3) and spiral;
The hydraulically extensible executive component of described oil cylinder (4) for being formed by cylinder body and piston rod;
Described connecting rod (5) is cylindrical shaft-like steel components;
Described stroke adjustment piece (6) is the cylinder tube shape steel components that two end outer cylinders are provided with chamfer;
Described travel switch (7) closes and the normally closed moving actuating type electric switch of opening contact for being provided with often to start;
Loose core described guiding screw thread (12) and the guiding nut (2) of son (1) of spiral slides to screw and is connected; Loose core described special shape gear (13) and the tooth bar (3) of son (1) of spiral is connected with a joggle, in the time of the initial state of mould closure, the described prevention protruding (131) of described special shape gear (13) and the described anodontia plane contact that has tooth section one side described in tooth bar (3); The described tooth bar sliding groove wall sliding-contact without flank and the setting of mould support plate of tooth bar (3), one end of tooth bar (3) is fixedly connected with the piston rod of oil cylinder (4); The piston rod top that one end of connecting rod (5) is positioned at oil cylinder (4) is fixedly connected with tooth bar (3) by contiguous block, and two stroke adjustment pieces (6) are enclosed within on the other end of connecting rod (5) and are fixedly connected with connecting rod (5);
Application connects, the cylinder body of oil cylinder (4) is fixedly connected with the support plate of mould, guiding nut (2) is positioned at mould inside and is fixedly connected with the support plate of mould, the loose core described thread core (11) of son (1) of spiral is positioned at the die cavity position of mould molding goods (03) screw thread profile, two travel switches (7) are fixedly connected on the outer wall of mould side by side, and the contact of two travel switches (7) lays respectively at the correspondence position touching for two stroke adjustment pieces (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210371242.2A CN102873836B (en) | 2012-09-19 | 2012-09-19 | Threaded core start angle device with precise resetting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210371242.2A CN102873836B (en) | 2012-09-19 | 2012-09-19 | Threaded core start angle device with precise resetting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873836A CN102873836A (en) | 2013-01-16 |
| CN102873836B true CN102873836B (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210371242.2A Expired - Fee Related CN102873836B (en) | 2012-09-19 | 2012-09-19 | Threaded core start angle device with precise resetting function |
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| Country | Link |
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| CN (1) | CN102873836B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708774B (en) * | 2015-03-11 | 2017-03-08 | 宁波双林模具有限公司 | A kind of ratchet-type screw thread starting point resetting means |
| CN105500634B (en) * | 2015-11-09 | 2017-11-24 | 宁波市环英汽配有限公司 | Device for side core-pulling |
| CN105479686B (en) * | 2015-11-09 | 2017-11-17 | 宁波市环英汽配有限公司 | Mechanism for side core-pulling |
| CN105500636B (en) * | 2015-11-09 | 2017-11-07 | 宁波市环英汽配有限公司 | Side core-pulling mould |
| CN105500623A (en) * | 2015-12-30 | 2016-04-20 | 优力精密塑胶（苏州工业园区）有限公司 | Front mold thread core pulling mold and machining method thereof |
| CN108943612A (en) * | 2018-10-15 | 2018-12-07 | 金陵科技学院 | A kind of adjustable injection mold of Core-pulling distance |
| CN111251552A (en) * | 2020-03-25 | 2020-06-09 | 上海康德莱医疗器械自动化研究所有限公司 | Injection mold and injection molding machine thereof |
| CN112406041B (en) * | 2020-10-30 | 2022-08-30 | 石招军 | Injection mold with adjustable core pulling length |
| CN115122587A (en) * | 2021-03-26 | 2022-09-30 | 惠州市耀盈精密技术有限公司 | Deep tooth product mould hank tooth drive mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860811Y (en) * | 2005-11-26 | 2007-01-24 | 富港电子（东莞）有限公司 | Slider back space mechanism and die using the same |
| CN202805563U (en) * | 2012-09-19 | 2013-03-20 | 宁波双林模具有限公司 | Device for accurately resetting starting angle of threaded core |
-
2012
- 2012-09-19 CN CN201210371242.2A patent/CN102873836B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860811Y (en) * | 2005-11-26 | 2007-01-24 | 富港电子（东莞）有限公司 | Slider back space mechanism and die using the same |
| CN202805563U (en) * | 2012-09-19 | 2013-03-20 | 宁波双林模具有限公司 | Device for accurately resetting starting angle of threaded core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102873836A (en) | 2013-01-16 |
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Granted publication date: 20141022 Termination date: 20180919 |