CN101875229A - Ejection mechanism for injection mould - Google Patents
Ejection mechanism for injection mould Download PDFInfo
- Publication number
- CN101875229A CN101875229A CN 201010214609 CN201010214609A CN101875229A CN 101875229 A CN101875229 A CN 101875229A CN 201010214609 CN201010214609 CN 201010214609 CN 201010214609 A CN201010214609 A CN 201010214609A CN 101875229 A CN101875229 A CN 101875229A
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- plate
- seesaw
- level
- ejection piece
- stage system
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Abstract
The invention discloses an ejection mechanism for an injection mould. The ejection mechanism comprises a lower ejection plate and an upper ejection plate which are slidably arranged between a movable mould body plate and a rear plate, a first-level ejection member, a second-level ejection member slidably arranged on the upper ejection plate, and a rocking plate, wherein the lower ejection plate is provided with an accommodating groove for accommodating the rocking plate, and the upper ejection plate is provided with a limiting block and a second-level braking block; the second-level ejection member and the second-level braking block are respectively positioned on the two sides of the rotation axis of the rocking plate; when the rocking plate is at a first working position, an upper end part of the second-level braking block is higher than the limiting block, and the first-level ejection member is flush with the upper end part of the second-level ejection member; when the rocking plate is at a second working position, the upper end part of the second-level braking block is flush with the limiting block, a lower end part of the second-level braking block stretches into the accommodating groove and is pressed against one end part of the rocking plate, the other end part of the rocking plate is pressed against the lower end part of the second-level ejection member, and the upper end part of the second-level ejection member is higher than the first-level ejection member. The ejection mechanism can finish two-level ejection at the same time and improve the demoulding efficiency.
Description
Technical field
The present invention relates to a kind of ejecting mechanism of injection mold.
Background technology
In the plastic processing and manufacturing, for complex-shaped plastic, because of mould shape face complex structure; ejection resistance is bigger; be difficult for taking out,, cause the plastic distortion easily, damage if adopt an ejecting mechanism; therefore need design secondary ejecting mechanism; and the secondary ejecting mechanism of injection mold in the prior art needs two driver parts to drive the two-stage ejection piece respectively usually and moves step by step, and not only control is complicated; and actuation time is longer, and the efficient of large-scale production is not high.
Summary of the invention
The object of the invention provides a kind of ejecting mechanism that can realize that plastic ejects rapidly.
For achieving the above object, the technical solution used in the present invention is: a kind of ejecting mechanism of injection mold, it comprises the upper ejector plate that is slidably disposed on following liftout plate between the plate of dynamic model entity plate and back, is fixedly installed on described liftout plate down top, be fixedly connected on described upper ejector plate or down the one-level ejection piece on the liftout plate, be slidably disposed on secondary ejection piece on the described upper ejector plate, be arranged on seesaw on the described liftout plate down rotationally;
Offer the accepting groove that is used to accommodate described seesaw on the liftout plate under described, described upper ejector plate is set with limited block, also be mounted slidably the two-stage system motion block on the described upper ejector plate, described secondary ejection piece and two-stage system motion block lay respectively at the both sides of the center of rotation of described seesaw, but and have the space that described two-stage system motion block is divided in the resettlement section in the described accepting groove; Described seesaw has two operating positions, and when described seesaw was in first operating position, the upper end of described two-stage system motion block was higher than described limited block, and the upper end of described one-level ejection piece and secondary ejection piece flushes; When described seesaw is in second operating position, the upper end of described two-stage system motion block flushes with described limited block, the bottom of described two-stage system motion block is stretched in described accepting groove and is against an end of described seesaw, the other end of described seesaw is against on the bottom of described secondary ejection piece, and the upper end of described secondary ejection piece is higher than described one-level ejection piece.
Preferably, also be movably set with auxiliary retainer on the liftout plate under described, the upper end of described auxiliary retainer is positioned at described accepting groove, described liftout plate is down passed in the bottom of described auxiliary retainer, and described auxiliary retainer is positioned at the below of described two-stage system motion block and seesaw.
More excellent, also be provided with return spring between described secondary ejection piece and the seesaw.
Because technique scheme utilization, the present invention compared with prior art has following advantage and effect: the present invention adopts the secondary limited block to cooperate with seesaw, in the process that upper ejector plate and following liftout plate move upward, initial period is that one-level ejection piece and secondary ejection piece stretch out together, the speed that the speed that stage secondary ejection piece then stretches out ejects greater than the one-level ejection piece, secondary ejection piece and one-level ejection piece are finished simultaneously and are ejected, therefore the present invention only needs a driver part and can finish two-stage and eject, and one-level ejects to eject simultaneously with secondary and finishes, and therefore can effectively improve demoulding efficiency.
Description of drawings
Accompanying drawing 1 is the structural representation of ejecting mechanism of the present invention when matched moulds;
Accompanying drawing 2 is ejecting mechanism of the present invention schematic diagram (when ejection piece does not eject) when die sinking;
Accompanying drawing 3 is the schematic diagram of ejecting mechanism of the present invention after finishing one-level and ejecting;
Accompanying drawing 4 is the schematic diagram of ejecting mechanism of the present invention after finishing secondary and ejecting;
Wherein: 1, dynamic model entity plate; 2, left side pillow plate; 3, upper ejector plate; 4, following liftout plate; 5, back plate; 6, secondary ejection piece; 7, one-level ejection piece; 8, right pillow plate; 9, two-stage system moving part; 10, limited block; 11, return spring; 12, seesaw; 13, auxiliary retainer;
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
A kind of ejecting mechanism of injection mold, it comprises:
Be slidably disposed on the following liftout plate 4 between dynamic model entity plate 1 and the back plate 5, be fixedly installed on the described upper ejector plate 3 of liftout plate 4 tops down, described injection mold comprises left side pillow plate 2 and the right pillow plate 8 that is fixedly installed between described dynamic model entity plate 1 and the back plate 5, described upper ejector plate 3 and following liftout plate 4 are arranged between left side pillow plate 2 and the right pillow plate 8, upper ejector plate 3 or down the drive of liftout plate 4 by driver part can slide up and down with respect to back plate 5, described in this specification on, upper/lower positions relation respectively with shown in the accompanying drawing 1 on, the upper/lower positions relation is corresponding.
Be set with one-level ejection piece 7 and limited block 10 on the described upper ejector plate 3, secondary ejection piece 6 and two-stage system motion block 9 also have been mounted slidably on the upper ejector plate 3, offer accepting groove on the liftout plate 4 under described, be provided with seesaw 12 in the described accepting groove, the middle part of described seesaw 12 is rotatably connected to down on the liftout plate 4, the bottom of described secondary ejection piece 6 and two-stage system motion block 9 can be stretched in this accepting groove respectively, and described secondary ejection piece 6 and two-stage system motion block 9 lay respectively at the both sides of the center of rotation of described seesaw 12.
For ease of resetting of ejecting mechanism, also be provided with return spring 11 between described secondary ejection piece 6 and the seesaw 12; Also be movably set with auxiliary retainer 13 on the described liftout plate 4 down, the upper end of described auxiliary retainer 13 is positioned at described accepting groove, described liftout plate 4 is down passed in the bottom of described auxiliary retainer 13, and described auxiliary retainer 13 is positioned at the below of described two-stage system motion block 9 and seesaw 12.
The course of work of the present invention is as follows: when the injection mold matched moulds, seesaw 12 is in horizontal level as shown in Figure 1, i.e. first operating position, at this moment, the bottom of auxiliary retainer 13 is against on the upper surface of back plate 5, and the upper end of auxiliary retainer 13 is against on the seesaw 12, makes two-stage system motion block 9 arrive extreme position upwards, this moment, the upper end of described two-stage system motion block 9 was higher than described limited block 10, and the upper end of described one-level ejection piece 7 and secondary ejection piece 6 flushes; After the injection mold die sinking, driver part drives down, and liftout plate 4 moves upward, this moment, one-level ejection piece 7 and secondary ejection piece 6 moved upward together, until when the two-stage system motion block 9 on the upper ejector plate 3 is against on the lower surface of dynamic model entity plate 1, one-level ejection piece 7 and secondary ejection piece 6 all keep flushing, as shown in Figure 3; Following liftout plate 4 continues to move upward, at this moment, secondary limited block 9 is owing to the reaction force that is subjected to dynamic model entity plate 1 can be to downslide, and there is part to enter in the accepting groove, make its rotation make it be in second operating position on the seesaw 12 thereby be pressed in, as shown in Figure 4, the active force of seesaw 12 customer service return springs 11 upwards ejects secondary ejection piece 6; Following liftout plate 4 continues to move upward, be against until limited block 10 on the lower surface of dynamic model entity plate 1, this moment, the upper end of described two-stage system motion block 9 flushed with described limited block 10, secondary ejection piece 6 is removed beyond the length of stretching out jointly with one-level ejection piece 7, also additionally stretch out the height that seesaw 12 ejects, the upper end of described secondary ejection piece 6 is higher than described one-level ejection piece 7, and so far, one-level ejects to eject simultaneously with secondary and finishes.Eject through two-stage, can smoothly moulding be taken off from mould.
Eject finish after, upper ejector plate 3 and following liftout plate 4 fall together, return spring 11 helps secondary ejection piece 6 to be returned to initial position rapidly, auxiliary retainer 13 then touches back plate 5 in the process that falls, and headed in the accepting groove, and then help seesaw 12 to change to first operating position from second operating position, seesaw 12 and secondary limited block 9 are resetted jointly.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. the ejecting mechanism of an injection mold, it is characterized in that: it comprises
Be slidably disposed on following liftout plate (4) between dynamic model entity plate (1) and back plate (5), be fixedly installed on described liftout plate (4) down top upper ejector plate (3), be fixedly connected on described upper ejector plate (3) or down the one-level ejection piece (7) on the liftout plate (4), be slidably disposed on secondary ejection piece (6) on the described upper ejector plate (3), be arranged on seesaw (12) on the described liftout plate (4) down rotationally;
Offer the accepting groove that is used to accommodate described seesaw (12) on the liftout plate (4) under described, be set with limited block (10) on the described upper ejector plate (3), also be mounted slidably two-stage system motion block (9) on the described upper ejector plate (3), described secondary ejection piece (6) and two-stage system motion block (9) lay respectively at the both sides of the center of rotation of described seesaw (12), but and have the space that described two-stage system motion block (9) is divided in the resettlement section in the described accepting groove; Described seesaw (12) has two operating positions, when described seesaw (12) is in first operating position, the upper end of described two-stage system motion block (9) is higher than described limited block (10), and the upper end of described one-level ejection piece (7) and secondary ejection piece (6) flushes; When described seesaw (12) is in second operating position, the upper end of described two-stage system motion block (9) flushes with described limited block (10), the lower end of described two-stage system motion block (9) has at least part to be inserted in the described accepting groove, and the bottom of described two-stage system motion block (9) is against on the end of described seesaw (12), the other end of described seesaw (12) is against on the bottom of described secondary ejection piece (6), and the upper end of described secondary ejection piece (6) is higher than described one-level ejection piece (7).
2. the ejecting mechanism of injection mold according to claim 1, it is characterized in that: also be movably set with auxiliary retainer (13) on the liftout plate (4) under described, the upper end of described auxiliary retainer (13) is positioned at described accepting groove, described liftout plate (4) is down passed in the bottom of described auxiliary retainer (13), and described auxiliary retainer (13) is positioned at the below of described two-stage system motion block (9) and seesaw (12).
3. the ejecting mechanism of injection mold according to claim 1 is characterized in that: also be provided with return spring (11) between described secondary ejection piece (6) and the seesaw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010214609 CN101875229A (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism for injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010214609 CN101875229A (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism for injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101875229A true CN101875229A (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010214609 Pending CN101875229A (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism for injection mould |
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| CN (1) | CN101875229A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601942A (en) * | 2012-03-15 | 2012-07-25 | 中山市朗华模具注塑有限公司 | Injection mold ejector mechanism |
| CN103171102A (en) * | 2012-09-13 | 2013-06-26 | 景智电子股份有限公司 | Two-section ejection mechanism and die comprising same |
| CN104149294A (en) * | 2014-07-31 | 2014-11-19 | 东莞汇美模具制造有限公司 | Side pulling and ejection device and injection mold |
| CN107672132A (en) * | 2017-10-26 | 2018-02-09 | 卢渭彬 | A kind of plastic mould thimble pushing meanss |
| CN108058347A (en) * | 2017-12-11 | 2018-05-22 | 浙江艾彼科技股份有限公司 | Automobile exterior trimming parts mold list top plate secondary ejecting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201189709Y (en) * | 2008-03-04 | 2009-02-04 | 谷崧精密工业股份有限公司 | Plastic rubber mould seesaw structure |
| CN201346833Y (en) * | 2009-01-13 | 2009-11-18 | 圣美精密工业(昆山)有限公司 | Ejection mechanism for injection mold |
| CN201371559Y (en) * | 2009-02-23 | 2009-12-30 | 福星塑胶模具(深圳)有限公司 | Seesaw ejecting demolding mechanism and injection mold |
| CN201389956Y (en) * | 2009-03-17 | 2010-01-27 | 芜湖维丰塑料电器有限公司 | Ejection mechanism for injection mold |
| CN201721017U (en) * | 2010-06-30 | 2011-01-26 | 圣美精密工业(昆山)有限公司 | Ejection mechanism of injection mold |
-
2010
- 2010-06-30 CN CN 201010214609 patent/CN101875229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201189709Y (en) * | 2008-03-04 | 2009-02-04 | 谷崧精密工业股份有限公司 | Plastic rubber mould seesaw structure |
| CN201346833Y (en) * | 2009-01-13 | 2009-11-18 | 圣美精密工业(昆山)有限公司 | Ejection mechanism for injection mold |
| CN201371559Y (en) * | 2009-02-23 | 2009-12-30 | 福星塑胶模具(深圳)有限公司 | Seesaw ejecting demolding mechanism and injection mold |
| CN201389956Y (en) * | 2009-03-17 | 2010-01-27 | 芜湖维丰塑料电器有限公司 | Ejection mechanism for injection mold |
| CN201721017U (en) * | 2010-06-30 | 2011-01-26 | 圣美精密工业(昆山)有限公司 | Ejection mechanism of injection mold |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601942A (en) * | 2012-03-15 | 2012-07-25 | 中山市朗华模具注塑有限公司 | Injection mold ejector mechanism |
| CN103171102A (en) * | 2012-09-13 | 2013-06-26 | 景智电子股份有限公司 | Two-section ejection mechanism and die comprising same |
| CN104149294A (en) * | 2014-07-31 | 2014-11-19 | 东莞汇美模具制造有限公司 | Side pulling and ejection device and injection mold |
| CN107672132A (en) * | 2017-10-26 | 2018-02-09 | 卢渭彬 | A kind of plastic mould thimble pushing meanss |
| CN107672132B (en) * | 2017-10-26 | 2019-05-28 | 广州金元雄电子科技发展有限公司 | A kind of plastic mould thimble pushing meanss |
| CN108058347A (en) * | 2017-12-11 | 2018-05-22 | 浙江艾彼科技股份有限公司 | Automobile exterior trimming parts mold list top plate secondary ejecting mechanism |
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Application publication date: 20101103 |