CN102990877B - Rack-type speed-multiplying secondary ejecting device - Google Patents
Rack-type speed-multiplying secondary ejecting device Download PDFInfo
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- CN102990877B CN102990877B CN201210410267.9A CN201210410267A CN102990877B CN 102990877 B CN102990877 B CN 102990877B CN 201210410267 A CN201210410267 A CN 201210410267A CN 102990877 B CN102990877 B CN 102990877B
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- top board
- push pedal
- gear
- sliding rack
- push rod
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Abstract
The invention discloses a rack-type speed-multiplying secondary ejecting device which comprises a gear (1), a top plate rack (2), a slide rack (3), a push plate (4), a push top plate (41), a push plate top compounded rod (5), a stub bar pull top rod (6), a product top rod (7) and a positioning rod (8). According to the invention, the device composed of the parts is adopted, in operation, when a product and a mold core are loose, the upper surface of the slide rack which moves forward along with the push top plate is close and contacted with the lower end of the positioning rod, and the positioning rod butts against the slide rack, and under the rotation effect that the gear, the top plate rack and the slide rack are meshed mutually, the top plate rack pushes the top plate to drive the stud bar pull top rod and the product top rod, and pushes a product and a cold stub bar to be separated from the mold core and the push plate forward in an acceleration mode at the speed twice of that of the push plate. With the adoption of the technical scheme, the problems and defects of application limit and low efficiency for the prior art are overcome, and the aims of expanding the application range and improving the mold removing efficiency further are achieved.
Description
Technical field
The present invention relates to the ejection stripping device of injection mold, specifically refer to a kind of rack-and-pinion speed secondary ejection device that divides secondary coated power is the large and dark type injection-molded item ejection device that coated length is darker for injection mold.
Background technology
The ejection device of and dark type injection-molded item that coated length darker large for coated power, prior art adopts lever secondary ejection device,, push rod first slowly ejects with top board, the goods that make to be coated on core occur loosening, prize push rod by lever-type seesaw again, accelerate loosening goods to eject disengaging core, shorten the time of whole ejection process to improve the efficiency of the goods demoulding; Lever is applicable to man-to-man ejecting,, a supporting push rod of lever, therefore be called again a set of seesaw pair, have more the mould of goods for a mould with runner, and need the many moulds that push rod synchronously ejects, owing to cannot arrange to arrange too much seesaw pair on a secondary mould, and lever-type application is limited to; In addition, because lever prizes goods, to accelerate the distance that ejects limited, for the darker dark type injection-molded item of coated length, the ejection cycle shortening is also limited, therefore the efficiency improving is also few, therefore, there are the problems and shortcomings that application is limited to, efficiency is not high in prior art.
Summary of the invention
The problems and shortcomings that exist for above-mentioned prior art, the present invention adopts the device that draws push rod, goods push rod, backstay to form by gear, top board tooth bar, sliding rack, push pedal, ejection plate, push pedal top compound lever, stub bar, gear is rotatably fixedly installed on ejection plate place, top board tooth bar and teeth parallel with sliding rack are relatively clamped in two limits, left and right of gear and engage with gear, wherein, top board tooth bar is fixedly connected on below top board, the guide groove slip snapping of sliding rack and ejection plate, from top to bottom, push pedal be positioned at dynamic model support plate above, top board is positioned at the below of dynamic model support plate, ejection plate is positioned at the below of top board, base plate is positioned at the below of ejection plate, push pedal top compound lever slides through push pedal, dynamic model support plate, top board push pedal is fixedly connected with ejection plate, stub bar draws that push rod, goods push rod slide through push pedal, dynamic model support plate is fixedly connected with top board, backstay is corresponding above with sliding rack, slides through top board, is fixed on below dynamic model support plate, when work, the stern post pushing tow ejection plate of injection machine, top board drive respectively push pedal and stub bar to draw push rod and goods push rod to promote forward at a slow speed goods disengaging core, when goods and core occur loosening, above the sliding rack moving forward with ejection plate, meet and contact with the lower end of backstay, backstay props up sliding rack, be subject to gear, top board tooth bar, the intermeshing rotary action of sliding rack, top board tooth bar pushes top board and drives stub bar to draw push rod and goods push rod, two speeds that move forward with push pedal, accelerate the technical scheme that promotion goods and cold burden head depart from forward core and push pedal, a kind of rack-and-pinion speed secondary ejection device is provided, be intended to make secondary ejection device can be common to dark type goods mould, one mould has more mould or many top rod molds, reach expansion range of application, further improve the object of demoulding efficiency.
The object of the present invention is achieved like this: a kind of rack-and-pinion speed secondary ejection device, comprise that gear, top board tooth bar, sliding rack, push pedal, ejection plate, push pedal top compound lever, stub bar draw push rod, goods push rod, backstay, wherein: described gear is cylindrical straight gear involute steel gear; Described top board tooth bar is the rectangle strip steel components that a long side face is provided with trapezoidal teeth; Described sliding rack is the rectangle strip steel components that a long side face is provided with trapezoidal teeth, is also provided with the guide rail of the T shape of above-below direction on the relative side of the face with being provided with teeth of sliding rack; Described push pedal is the steel components of rectangular plate shape, and push pedal is provided with the through hole coordinating with the lower profile longitudinal sliding motion of the core of dynamic model, and push pedal departs from core purposes for pushing tow goods; The steel components that described ejection plate is rectangular plate shape, two limits, left and right of ejection plate are provided with the arrangement slotted eye for fixed gear; On one side opening wall of described arrangement slotted eye, be also provided with the guide groove that slides the T shape being fastened with the described guide rail of sliding rack; Described push pedal top compound lever is cylindrical shaft-like steel components; It is the cylindrical shaft-like steel components that bottom is provided with flange that described stub bar draws push rod, and the breach that stub bar draws the top of push rod to be provided with the sub-shape of Z is called pull head; Described goods push rod is the cylindrical shaft-like steel components that bottom is provided with flange; Described backstay is interior hexagonal cylindrical hook bolt;
Gear is rotatably mounted to the described arrangement slotted eye place of ejection plate, and top board tooth bar and teeth parallel with sliding rack are clamped in relatively respectively two limits, left and right of gear and engage with gear; The upper end of top board tooth bar is fixedly connected on below top board, and sliding rack is arranged in the described arrangement slotted eye and described guide groove slip snapping of ejection plate;
From top to bottom, push pedal be positioned at dynamic model support plate above, top board is positioned at the below of dynamic model support plate, ejection plate is positioned at the below of top board, base plate is positioned at the below of ejection plate; Push pedal top compound lever slides through push pedal, dynamic model support plate and top board push pedal is fixedly connected with ejection plate; Stub bar draws push rod, goods push rod to slide through push pedal and dynamic model support plate, and stub bar draws the bottom of push rod, goods push rod to be fixedly connected with top board; Backstay is corresponding with sliding rack position to be fixed on below dynamic model support plate, the lower end of backstay can down sliding through the meeting and contact above of top board and sliding rack, the distance between above the lower end of backstay and sliding rack is called and ejects slowly spacing; Below sliding rack with above base plate, contact.
Operation principle and beneficial effect
When application, mould is horizontal installation, the fore-and-aft direction that the above-below direction that structure is described is job description.
When the demoulding, the stern post pushing tow ejection plate of injection machine, top board drive respectively push pedal and stub bar to draw push rod and goods push rod to promote forward at a slow speed goods disengaging core, when goods and core occur loosening, the capable Bi Suoshu of sliding rack with the reach of ejection plate ejects spacing slowly, above sliding rack, meet and contact with the lower end of backstay, now ejection plate continues reach at a slow speed, because backstay props up sliding rack, be subject to gear, top board tooth bar, the intermeshing effect of sliding rack, gear rotation, the top board tooth bar that the gear driven of rotation is engaged with moves forward, because moving forward speed with respect to gear translational speed forward with ejection plate, top board tooth bar equates, superpose through speed, now top board tooth bar pushing tow top board to move forward speed be two times that ejection plate moves forward speed, thereby be called speed, therefore, top board tooth bar pushes top board and drives stub bar to draw push rod and goods push rod, two speeds that move forward with push pedal, accelerate goods and cold burden head to push away forward core and push pedal, shorten thus the time of whole ejection process, improved the demoulding efficiency of goods,
When reset, dynamic model and cover half matched moulds, the bar that returns back to top of dynamic model promotes roof backing and resets, top board drives stub bar to draw push rod and goods push rod rollback to reset, top board drives ejection sheet reset through top board tooth bar simultaneously, and ejection plate resets push pedal through push pedal top compound lever, in the process of ejection sheet reset, be subject to gear, top board tooth bar, the intermeshing rotary action of sliding rack, top board tooth bar and sliding rack synchronous reset.
This device stretches out described in the adjustable in length below dynamic model support plate and ejects slowly spacing by adjusting backstay, is convenient to lengthen to greatest extent speed and ejects distance, improves demoulding efficiency; This device is convenient to choose as required the length of top board tooth bar and sliding rack, to meet the application of dark type goods mould; This device is also applicable to a mould and has more mould or the application of many top rod molds, has versatility in a big way.
Above-mentioned, the present invention adopts the device that draws push rod, goods push rod, backstay to form by gear, top board tooth bar, sliding rack, push pedal, ejection plate, push pedal top compound lever, stub bar, gear is rotatably fixedly installed on ejection plate place, top board tooth bar and teeth parallel with sliding rack are relatively clamped in two limits, left and right of gear and engage with gear, wherein, top board tooth bar is fixedly connected on below top board, the guide groove slip snapping of sliding rack and ejection plate, from top to bottom, push pedal be positioned at dynamic model support plate above, top board is positioned at the below of dynamic model support plate, ejection plate is positioned at the below of top board, base plate is positioned at the below of ejection plate, push pedal top compound lever slides through push pedal, dynamic model support plate, top board push pedal is fixedly connected with ejection plate, stub bar draws that push rod, goods push rod slide through push pedal, dynamic model support plate is fixedly connected with top board, backstay is corresponding above with sliding rack, slides through top board, is fixed on below dynamic model support plate, when work, the stern post pushing tow ejection plate of injection machine, top board drive respectively push pedal and stub bar to draw push rod and goods push rod to promote forward at a slow speed goods disengaging core, when goods and core occur loosening, above the sliding rack moving forward with ejection plate, meet and contact with the lower end of backstay, backstay props up sliding rack, be subject to gear, top board tooth bar, the intermeshing rotary action of sliding rack, top board tooth bar pushes top board and drives stub bar to draw push rod and goods push rod, two speeds that move forward with push pedal, accelerate the technical scheme that promotion goods and cold burden head depart from forward core and push pedal, overcome prior art and had application limitation, the problems and shortcomings that efficiency is not high, a kind of rack-and-pinion speed secondary ejection device providing, can be common to dark type goods mould, one mould has more mould or many top rod molds, reach expansion range of application, further improve the object of demoulding efficiency.
Brief description of the drawings
Fig. 1 is a kind of rack-and-pinion speed secondary ejection device of the present invention, is arranged in the structural representation of application mould;
Fig. 2 is a kind of rack-and-pinion speed secondary ejection device of the present invention, is operated in speed and ejects the principle schematic of tense.
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: gear 1, top board tooth bar 2, sliding rack 3, push pedal 4, ejection plate 41, push pedal top compound lever 5, stub bar draw push rod 6, goods push rod 7, backstay 8, dynamic model 01, dynamic model support plate 011, core 012, top board 013, base plate 014, cover half 02, goods 03, cold burden head 04, stern post 05.
Detailed description of the invention
Consult Fig. 1, Fig. 2, a kind of rack-and-pinion speed secondary ejection device of the present invention, comprise that gear 1, top board tooth bar 2, sliding rack 3, push pedal 4, ejection plate 41, push pedal top compound lever 5, stub bar draw push rod 6, goods push rod 7, backstay 8, wherein: described gear 1 is cylindrical straight gear involute steel gear; Described top board tooth bar 2 is the rectangle strip steel components that a long side face is provided with trapezoidal teeth; Described sliding rack 3 is the rectangle strip steel components that a long side face is provided with trapezoidal teeth, is also provided with the guide rail of the T shape of above-below direction on the relative side of the face with being provided with teeth of sliding rack 3; The steel components that described push pedal 4 is rectangular plate shape, push pedal 4 is provided with the through hole coordinating with the lower profile longitudinal sliding motion of the core 012 of dynamic model, and push pedal 4 departs from core 012 purposes for pushing tow goods 03; The steel components that described ejection plate 41 is rectangular plate shape, two limits, left and right of ejection plate 41 are provided with the arrangement slotted eye for fixed gear 1; On one side opening wall of described arrangement slotted eye, be also provided with the guide groove that slides the T shape being fastened with the described guide rail of sliding rack 3; Described push pedal top compound lever 5 is cylindrical shaft-like steel components; Described stub bar draws push rod 6 to be provided with the cylindrical shaft-like steel components of flange for bottom, and the breach that stub bar draws the top of push rod 6 to be provided with the sub-shape of Z is called pull head; Described goods push rod 7 is provided with the cylindrical shaft-like steel components of flange for bottom; Described backstay 8 is interior hexagonal cylindrical hook bolt;
Gear 1 is rotatably mounted to the described arrangement slotted eye place of ejection plate 41, and top board tooth bar 2 and teeth parallel with sliding rack 3 are clamped in relatively respectively two limits, left and right of gear 1 and engage with gear 1; The upper end of top board tooth bar 2 is fixedly connected on below top board 013, and sliding rack 3 is arranged in the described arrangement slotted eye and described guide groove slip snapping of ejection plate 41;
From top to bottom, push pedal 4 be positioned at dynamic model support plate 011 above, top board 013 is positioned at the below of dynamic model support plate 011, ejection plate 41 is positioned at the below of top board 013, base plate 014 is positioned at the below of ejection plate 41; Push pedal top compound lever 5 slides through push pedal 4, dynamic model support plate 011 and top board 013 push pedal 4 is fixedly connected with ejection plate 41; Stub bar draws push rod 6, goods push rod 7 to slide through push pedal 4 and dynamic model support plate 011, and stub bar draws the bottom of push rod 6, goods push rod 7 to be fixedly connected with top board 013; Backstay 8 is corresponding with sliding rack 3 positions to be fixed on below dynamic model support plate 011, the lower end of backstay 8 can down sliding through the meeting and contact above of top board 013 and sliding rack 3, the distance between above the lower end of backstay 8 and sliding rack 3 is called and ejects slowly spacing; Below sliding rack 3 with above base plate 014, contact.
Operation principle and beneficial effect
When application, mould is horizontal installation, the fore-and-aft direction that the above-below direction that structure is described is job description.
When the demoulding, the stern post 05 pushing tow ejection plate 41 of injection machine, top board 013 drive respectively push pedal 4 and stub bar to draw push rod 6 and goods push rod 7 to promote forward at a slow speed goods 03 to depart from core 012, when goods 03 and core 012 occur loosening, the sliding rack 3 row Bi Suoshu that move forward with ejection plate 41 eject spacing slowly, above sliding rack 3, meet and contact with the lower end of backstay 8, now ejection plate 41 continues to move forward at a slow speed, because backstay 8 props up sliding rack 3, be subject to gear 1, top board tooth bar 2, the intermeshing effect of sliding rack 3, gear 1 rotates, the gear 1 of rotation drives the top board tooth bar 2 being engaged with to move forward, because moving forward speed with respect to gear 1 translational speed forward with ejection plate 41, top board tooth bar 2 equates, superpose through speed, now top board tooth bar 2 pushing tow top boards 013 to move forward speed be two times that ejection plate 41 moves forward speed, thereby be called speed, therefore, top board tooth bar 2 pushes top board 013 and drives stub bar to draw push rod 6 and goods push rod 7, two speeds that move forward with push pedal 4, accelerate goods 03 and cold burden head 04 to push away forward core 012 and push pedal 4, shorten thus the time of whole ejection process, improved the demoulding efficiency of goods 03,
When reset, dynamic model 01 and cover half 02 matched moulds, the bar that returns back to top of dynamic model promotes top board 013 rollback and resets, top board 013 drives stub bar to draw push rod 6 and goods push rod 7 rollbacks to reset, top board 013 drives ejection plate 41 to reset through top board tooth bar 2 simultaneously, and ejection plate 41 resets push pedal 4 through push pedal top compound lever 5, in the process that ejection plate 41 resets, be subject to gear 1, top board tooth bar 2, the intermeshing rotary action of sliding rack 3, top board tooth bar 2 and sliding rack 3 synchronous resets.
This device stretches out described in dynamic model support plate 011 adjustable in length below and ejects slowly spacing by adjusting backstay 8, is convenient to lengthen to greatest extent speed and ejects distance, improves demoulding efficiency; This device is convenient to choose as required the length of top board tooth bar 2 and sliding rack 3, to meet the application of dark type goods mould; This device is also applicable to a mould and has more mould or the application of many top rod molds, has versatility in a big way.
Claims (1)
1. a rack-and-pinion speed secondary ejection device, comprise that gear (1), top board tooth bar (2), sliding rack (3), push pedal (4), ejection plate (41), push pedal top compound lever (5), stub bar draw push rod (6), goods push rod (7), backstay (8), is characterized in that: described gear (1) is cylindrical straight gear involute steel gear; Described top board tooth bar (2) is the rectangle strip steel components that a long side face is provided with trapezoidal teeth; Described sliding rack (3) is the rectangle strip steel components that a long side face is provided with trapezoidal teeth, is also provided with the guide rail of the T shape of above-below direction on the relative side of the face with being provided with teeth of sliding rack (3); The steel components that described push pedal (4) is rectangular plate shape, push pedal (4) is provided with the through hole coordinating with the lower profile longitudinal sliding motion of the core (012) of dynamic model, and push pedal (4) departs from core (012) purposes for pushing tow goods (03); The steel components that described ejection plate (41) is rectangular plate shape, two limits, left and right of ejection plate (41) are provided with the arrangement slotted eye for fixed gear (1); On one side opening wall of described arrangement slotted eye, be also provided with the guide groove that slides the T shape being fastened with the described guide rail of sliding rack (3); Described push pedal top compound lever (5) is cylindrical shaft-like steel components; Described stub bar draws push rod (6) to be provided with the cylindrical shaft-like steel components of flange for bottom, and the breach that stub bar draws the top of push rod (6) to be provided with zigzag is called pull head; Described goods push rod (7) is provided with the cylindrical shaft-like steel components of flange for bottom; Described backstay (8) is interior hexagonal cylindrical hook bolt;
Gear (1) is rotatably mounted to the described arrangement slotted eye place of ejection plate (41), and top board tooth bar (2) and teeth parallel with sliding rack (3) are clamped in relatively respectively two limits, left and right of gear (1) and engage with gear (1); The upper end of top board tooth bar (2) is fixedly connected on below top board (013), and sliding rack (3) is arranged in the described arrangement slotted eye and described guide groove slip snapping of ejection plate (41);
From top to bottom, push pedal (4) be positioned at dynamic model support plate (011) above, top board (013) is positioned at the below of dynamic model support plate (011), ejection plate (41) is positioned at the below of top board (013), and base plate (014) is positioned at the below of ejection plate (41); Push pedal top compound lever (5) slides through push pedal (4), dynamic model support plate (011) and top board (013) push pedal (4) is fixedly connected with ejection plate (41); Stub bar draws push rod (6), goods push rod (7) to slide through push pedal (4) and dynamic model support plate (011), and stub bar draws the bottom of push rod (6), goods push rod (7) to be fixedly connected with top board (013); Backstay (8) is corresponding with sliding rack (3) position to be fixed on below dynamic model support plate (011), the lower end of backstay (8) can down sliding through the meeting and contact above of top board (013) and sliding rack (3), the distance between above the lower end of backstay (8) and sliding rack (3) is called and ejects slowly spacing; Below sliding rack (3) with above base plate (014), contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410267.9A CN102990877B (en) | 2012-10-12 | 2012-10-12 | Rack-type speed-multiplying secondary ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410267.9A CN102990877B (en) | 2012-10-12 | 2012-10-12 | Rack-type speed-multiplying secondary ejecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990877A CN102990877A (en) | 2013-03-27 |
| CN102990877B true CN102990877B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210410267.9A Expired - Fee Related CN102990877B (en) | 2012-10-12 | 2012-10-12 | Rack-type speed-multiplying secondary ejecting device |
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| CN (1) | CN102990877B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922486A (en) * | 2016-06-22 | 2016-09-07 | 无锡市东特机械科技有限公司 | Sealing piece machining device |
| CN111660514A (en) * | 2020-06-12 | 2020-09-15 | 东莞顶钧塑胶模具有限公司 | Ejection device for fast demolding of product |
| CN112517880B (en) * | 2020-12-08 | 2022-04-22 | 东莞市旺佳五金制品有限公司 | Die casting die of precision die casting |
| CN115042385B (en) * | 2022-06-10 | 2022-12-09 | 浙江金马泰科技有限公司 | Toy tire cover gas cap structure injection mold |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19616008C1 (en) * | 1996-04-23 | 1997-06-19 | Siegfried Hofmann Gmbh Werkzeu | Gearing for linear lift movement of tool part, especially for ejection or replacement of ejector of injection moulding tool |
| JP4837652B2 (en) * | 2007-12-07 | 2011-12-14 | 日精樹脂工業株式会社 | Injection mold for insert molding |
| CN201645752U (en) * | 2010-02-09 | 2010-11-24 | 东莞朗诚模具有限公司 | Mold device packaged by high-voltage device |
| CN201693745U (en) * | 2010-07-09 | 2011-01-05 | 嘉兴信元精密模具科技有限公司 | Gear second ejecting mechanism used for ejecting product with rib position structure |
| CN202428630U (en) * | 2011-12-27 | 2012-09-12 | 羊元庆 | Mould ejecting structure used for ejecting product with tendon position |
| CN202462816U (en) * | 2011-12-30 | 2012-10-03 | 苏州市东庄大通精密模具有限公司 | Demolding mechanism for injection molding machines |
| CN202480344U (en) * | 2012-03-31 | 2012-10-10 | 李海周 | Secondary ejection mechanism and helical gear forming mold comprising the same |
| CN202862551U (en) * | 2012-10-12 | 2013-04-10 | 宁波意中模塑有限公司 | Rack-type multi-speed double ejection device |
-
2012
- 2012-10-12 CN CN201210410267.9A patent/CN102990877B/en not_active Expired - Fee Related
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| CN102990877A (en) | 2013-03-27 |
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Granted publication date: 20141217 Termination date: 20211012 |