CN102909834A - Rack double ejection device - Google Patents
Rack double ejection device Download PDFInfo
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- CN102909834A CN102909834A CN2012104186250A CN201210418625A CN102909834A CN 102909834 A CN102909834 A CN 102909834A CN 2012104186250 A CN2012104186250 A CN 2012104186250A CN 201210418625 A CN201210418625 A CN 201210418625A CN 102909834 A CN102909834 A CN 102909834A
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- tooth bar
- gear
- push rod
- rack
- support plate
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Abstract
The invention discloses a rack double ejection device. The rack double ejection device comprises a gear (1), an ejection rod rack (2) and a carrier plate rack (3). When the rack double ejection device comprising the above members is in work, a tail column of an injection molding machine pushes an ejection plate and drives a material head pulling and ejecting rod and a product ejecting rod to slowly push forward a product and a cold material head for de-molding; when the product and a mold core are loosened, the gear moving forward along with the ejection plate meets with the carrier plate rack and is engaged with the carrier plate rack, the ejection rod rack drives the product ejecting rod to push the product to depart from the mold core at a speed which is twice the speed of moving forward the ejection plate and the material head pulling and ejecting rod under the rotation action of the mutual engagement of the gear, the ejection rod rack and the carrier plate rack; and meanwhile, according to the technical scheme that the product and the cold material head are cut and separated by utilizing speed difference between the product and the cold material head, double ejection of a mold not only can improve the de-molding efficiency but also can be used for automatically cutting and separating the product and the cold material head, so that the purposes of improving the de-molding efficiency, reducing the working intensity, saving the time and labor, and lowering the cost are achieved.
Description
Technical field
The present invention relates to the ejection stripping device of injection mold, specifically refer to divide secondary will coat power greatly and a kind of tooth bar secondary ejection device of the deep cavity shape goods ejection device that coated length is darker for injection mold.
Background technology
The ejection device of and deep cavity shape goods that coated length darker large for coating power, prior art adopts the lever secondary ejection device, namely, push rod slowly ejects with top board first, the goods that are coated on the core are occured loosening, prize push rod by lever-type seesaw again, the goods that acceleration will have been become flexible eject the disengaging core, shorten the time of whole ejection process, to improve the efficient of the goods demoulding; To accelerate the distance eject limited because lever prizes goods, and for the darker dark type injection-molded item of coated length, the ejection cycle that shortens is also limited, therefore the efficient that improves and few; In addition, because the distance that the lever acceleration ejects is limited, be difficult to utilize the stub bar that ejects at a slow speed with top board to draw push rod with the range difference of the goods push rod that ejects with lever-type acceleration goods to be separated with cold burden head fracture, therefore still need manually to carry out by working strength is large, time-consuming, efficient is low, cost is high fracture, therefore, there are the problems and shortcomings that demoulding efficiency is low, working strength is large, time-consuming, cost is high in prior art.
Summary of the invention
Problems and shortcomings for above-mentioned prior art existence, the present invention adopts the device that is made of gear, push rod tooth bar, support plate tooth bar, gear is fixedly installed on the top board place rotationally, the push rod tooth bar be parallel to each other with the support plate tooth bar and the teeth face relative, wherein, the push rod tooth bar is positioned at the left side and the gear engagement of gear, and the upper end of push rod tooth bar is fixedly connected with the lower end of goods push rod; The top that the support plate tooth bar is positioned at gear the right be fixedly connected on the dynamic model support plate below, the support plate tooth bar can moving up and the right of gear engagement of meeting with top board; During work, the stern post pushing tow top board of injection machine also drives stub bar and draws push rod, the goods push rod promotes forward at a slow speed goods and the demoulding of cold burden head, when goods and core occur loosening, with the engagement of meeting of the gear of top board reach and support plate tooth bar, be subjected to gear, the push rod tooth bar, the intermeshing rotary action of support plate tooth bar, push rod rack drives goods push rod draws two times of speed of push rod reach to accelerate to promote goods disengaging core with top board and stub bar, simultaneously, utilize goods to realize the technical scheme that goods separate with cold burden head fracture with the speed difference between the cold burden head, a kind of tooth bar secondary ejection device is provided, be intended to eject by the speed of push rod tooth bar, make the Double-ejection of mould not only can improve demoulding efficiency and can also be used for goods and separate with the automatic cutting of cold burden head, reach the raising demoulding efficiency, reduce working strength, saving of work and time, reduce the purpose of cost.
The object of the present invention is achieved like this: a kind of tooth bar secondary ejection device, comprise gear, push rod tooth bar, support plate tooth bar, and wherein: described gear is cylindrical straight gear involute steel gear;
Described push rod tooth bar is the rectangle strip steel components that a long side face is provided with trapezoidal teeth;
Described support plate tooth bar is the rectangle strip steel components that a long side face is provided with trapezoidal teeth;
Gear is fixedly installed on the top board place rotationally, the push rod tooth bar be parallel to each other with the support plate tooth bar and the teeth face relative, wherein, the push rod tooth bar is positioned at the left side and the gear engagement of gear, the upper end of push rod tooth bar is fixedly connected with the lower end of goods push rod, the lower end that the goods push rod is connected with the push rod tooth bar also is provided with step ledge and contacts with the top of top board, and the lower end of push rod tooth bar contacts with the top of base plate; The top that the support plate tooth bar is positioned at gear the right be fixedly connected on the dynamic model support plate below, the support plate tooth bar can be with the moving up and the right of gear engagement of meeting of top board, the meeting of the lower end of support plate tooth bar and gear mesh distance apart be called and eject slowly spacing.
Operation principle and beneficial effect
During application, mould is horizontal installation, and the above-below direction that structure is described is the fore-and-aft direction of job description.
During work, the stern post pushing tow top board of injection machine also drives stub bar and draws push rod, goods push rod to promote forward at a slow speed cold burden head and the goods demoulding, when goods and core occur loosening, at this moment, with the capable Bi Suoshu of gear of top board reach eject slowly spacing and with the engagement of meeting of support plate tooth bar, be subjected to gear, push rod tooth bar, the intermeshing rotary action of support plate tooth bar, push rod rack drives goods push rod accelerates to promote goods and breaks away from core; Because top board continues at a slow speed reach, the push rod tooth bar equates with the speed that top board is pushed ahead with respect to gear translational speed forward, the stack of two phase velocities, then at this moment, the speed of goods push rod pushing tow goods is two times that stub bar draws the front translational speed of push rod pushing tow cold burden head, thereby be called speed, and utilize the speed difference that accelerates to eject between stage goods and the cold burden head, goods are separated with cold burden head fracture.
This device is convenient to choose as required the length of push rod tooth bar, support plate tooth bar, lengthens to greatest extent speed and ejects distance to satisfy deep cavity shape goods mould, improves demoulding efficiency; Also utilize simultaneously the speed difference between goods and the cold burden head to realize that goods separate with the automatic cutting of cold burden head, thereby improved demoulding efficiency, reduced working strength, saved man-hour, reduced cost.
Above-mentioned, the present invention adopts the device that is made of gear, push rod tooth bar, support plate tooth bar, gear is fixedly installed on the top board place rotationally, the push rod tooth bar be parallel to each other with the support plate tooth bar and the teeth face relative, wherein, the push rod tooth bar is positioned at the left side and the gear engagement of gear, and the upper end of push rod tooth bar is fixedly connected with the lower end of goods push rod; The top that the support plate tooth bar is positioned at gear the right be fixedly connected on the dynamic model support plate below, the support plate tooth bar can moving up and the right of gear engagement of meeting with top board; During work, the stern post pushing tow top board of injection machine also drives stub bar and draws push rod, the goods push rod promotes forward at a slow speed goods and the demoulding of cold burden head, when goods and core occur loosening, with the engagement of meeting of the gear of top board reach and support plate tooth bar, be subjected to gear, the push rod tooth bar, the intermeshing rotary action of support plate tooth bar, push rod rack drives goods push rod draws two times of speed of push rod reach to accelerate to promote goods disengaging core with top board and stub bar, simultaneously, utilize goods to realize the technical scheme that goods separate with cold burden head fracture with the speed difference between the cold burden head, having overcome prior art exists demoulding efficiency low, working strength is large, time-consuming, the problems and shortcomings that cost is high, a kind of tooth bar secondary ejection device that provides, speed by the push rod tooth bar ejects, make the Double-ejection of mould not only can improve demoulding efficiency but also can be used in goods and separate with the automatic cutting of cold burden head, reached the raising demoulding efficiency, reduce working strength, saving of work and time, reduce the purpose of cost.
Description of drawings
Fig. 1 is that a kind of tooth bar secondary ejection device of the present invention is arranged in the structural representation of using mould;
Fig. 2 be among Fig. 1 A section draw enlarged drawing;
Fig. 3 is a kind of tooth bar secondary ejection device of the present invention, is operated in the principle schematic that ejects slowly the spacing tense;
Fig. 4 is a kind of tooth bar secondary ejection device of the present invention, is operated in the principle schematic of accelerating to eject the stage tense.
Below in conjunction with the embodiment in the accompanying drawing the present invention is described in further detail, but should not be construed as any limitation of the invention.
Among the figure: gear 1, push rod tooth bar 2, support plate tooth bar 3, dynamic model 01, core 02, dynamic model support plate 03, top board 04, base plate 041, stub bar draw push rod 05, goods push rod 06, the post 07 that returns back to top, cover half 08, goods 09, cold burden head 010, stern post 011.
The specific embodiment
Consult Fig. 1~Fig. 4, a kind of tooth bar secondary ejection device of the present invention comprises gear 1, push rod tooth bar 2, support plate tooth bar 3, and wherein: described gear 1 is cylindrical straight gear involute steel gear;
Described push rod tooth bar 2 is the rectangle strip steel components that a long side face is provided with trapezoidal teeth;
Described support plate tooth bar 3 is the rectangle strip steel components that a long side face is provided with trapezoidal teeth;
Operation principle and beneficial effect
During application, mould is horizontal installation, and the above-below direction that structure is described is the fore-and-aft direction of job description.
During work, the stern post 011 pushing tow top board 04 of injection machine also drives stub bar and draws push rod 05, goods push rod 06 to promote forward at a slow speed cold burden head 010 and goods 09 demoulding, when goods 09 and core 02 occur loosening, at this moment, with the gear 1 row Bi Suoshu of top board 04 reach eject slowly spacing and with support plate tooth bar 3 engagement of meeting, be subjected to gear 1, push rod tooth bar 2, support plate tooth bar 3 intermeshing rotary actions, push rod tooth bar 2 drives goods push rod 06 and accelerates to promote goods 09 disengaging core 02; Because top board 04 continues at a slow speed reach, the speed that push rod tooth bar 2 is pushed ahead with respect to gear 1 translational speed forward and top board 04 equates, the stack of two phase velocities, then at this moment, the speed of goods push rod 06 pushing tow goods 09 is two times that stub bar draws push rod 05 pushing tow cold burden head 010 front translational speed, thereby be called speed, and utilize the speed difference that accelerates to eject between stage goods 09 and the cold burden head 010, goods 09 are separated with cold burden head 010 fracture.
This device is convenient to choose as required the length of push rod tooth bar 2, support plate tooth bar 3, lengthens to greatest extent speed and ejects distance to satisfy deep cavity shape goods mould, improves demoulding efficiency; Also utilize simultaneously the speed difference between goods 09 and the cold burden head 010 to realize that goods 09 separate with the automatic cutting of cold burden head 010, thereby improved demoulding efficiency, reduced working strength, saved man-hour, reduced cost.
Claims (1)
1. a tooth bar secondary ejection device comprises gear (1), push rod tooth bar (2), support plate tooth bar (3), it is characterized in that: described gear (1) is cylindrical straight gear involute steel gear; Described push rod tooth bar (2) is the rectangle strip steel components that a long side face is provided with trapezoidal teeth; Described support plate tooth bar (3) is the rectangle strip steel components that a long side face is provided with trapezoidal teeth; Gear (1) is fixedly installed on rotationally top board (04) and locates, push rod tooth bar (2) be parallel to each other with support plate tooth bar (3) and the teeth face relative, wherein, push rod tooth bar (2) is positioned at the left side and gear (1) engagement of gear (1), the upper end of push rod tooth bar (2) is fixedly connected with the lower end of goods push rod (06), the lower end that goods push rod (06) is connected with push rod tooth bar (2) also is provided with top contact of step ledge and top board (04), the top contact of the lower end of push rod tooth bar (2) and base plate (041); The top that support plate tooth bar (3) is positioned at gear (1) the right be fixedly connected on dynamic model support plate (03) below, support plate tooth bar (3) can be with the moving up and the right of gear (1) engagement of meeting of top board (04), the engagement of meeting of the lower end of support plate tooth bar (3) and gear (1) distance apart be called and eject slowly spacing.
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CN201210418625.0A CN102909834B (en) | 2012-10-15 | 2012-10-15 | Rack double ejection device |
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CN201210418625.0A CN102909834B (en) | 2012-10-15 | 2012-10-15 | Rack double ejection device |
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CN102909834A true CN102909834A (en) | 2013-02-06 |
CN102909834B CN102909834B (en) | 2015-05-27 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105171962A (en) * | 2015-08-13 | 2015-12-23 | 宁波瑞元模塑有限公司 | Anti-adhesion die for thin-walled deep screw column hole |
CN114290625A (en) * | 2022-01-11 | 2022-04-08 | 宁波方正汽车模具股份有限公司 | Injection mold mechanism of expecting absolutely |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01174430A (en) * | 1987-12-29 | 1989-07-11 | Niigata Eng Co Ltd | Ejecting device for injection molding machine |
CN101954722A (en) * | 2010-09-15 | 2011-01-26 | 宁海瑞元模塑有限公司 | Delay forced de-molding mechanism of injection mold |
CN202021758U (en) * | 2010-12-30 | 2011-11-02 | 柳州五菱汽车有限责任公司 | Injection molding die for bumper |
CN202826302U (en) * | 2012-10-15 | 2013-03-27 | 宁波瑞元模塑有限公司 | Secondary rack ejecting device |
-
2012
- 2012-10-15 CN CN201210418625.0A patent/CN102909834B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01174430A (en) * | 1987-12-29 | 1989-07-11 | Niigata Eng Co Ltd | Ejecting device for injection molding machine |
CN101954722A (en) * | 2010-09-15 | 2011-01-26 | 宁海瑞元模塑有限公司 | Delay forced de-molding mechanism of injection mold |
CN202021758U (en) * | 2010-12-30 | 2011-11-02 | 柳州五菱汽车有限责任公司 | Injection molding die for bumper |
CN202826302U (en) * | 2012-10-15 | 2013-03-27 | 宁波瑞元模塑有限公司 | Secondary rack ejecting device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105171962A (en) * | 2015-08-13 | 2015-12-23 | 宁波瑞元模塑有限公司 | Anti-adhesion die for thin-walled deep screw column hole |
CN114290625A (en) * | 2022-01-11 | 2022-04-08 | 宁波方正汽车模具股份有限公司 | Injection mold mechanism of expecting absolutely |
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CN102909834B (en) | 2015-05-27 |
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