CN201721017U - Ejection mechanism of injection mold - Google Patents
Ejection mechanism of injection mold Download PDFInfo
- Publication number
- CN201721017U CN201721017U CN 201020243259 CN201020243259U CN201721017U CN 201721017 U CN201721017 U CN 201721017U CN 201020243259 CN201020243259 CN 201020243259 CN 201020243259 U CN201020243259 U CN 201020243259U CN 201721017 U CN201721017 U CN 201721017U
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- CN
- China
- Prior art keywords
- seesaw
- plate
- ejection piece
- stage system
- motion block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to an ejection mechanism of an injection mold, which comprises a lower ejection plate and an upper ejection plate arranged between a movable mold body plate and a rear plate in a sliding manner, a primary ejection component, a secondary ejection component arranged on the upper ejection plate in a sliding manner, and a seesaw; an accommodating groove used for accommodating the seesaw is formed on the lower ejection plate; a limit block and a secondary brake block are arranged on the upper ejection plate; the secondary ejection component and the secondary brake block are positioned on two sides of a rotating axle center of the seesaw respectively; when the seesaw is positioned in the first working position, the upper end of the secondary brake block is higher than the limit block, and the primary ejection component is aligned with the upper end of the secondary ejection component; when the seesaw is positioned in the second working position, the upper end of the secondary brake block is aligned with the limit block, the lower end of the secondary brake block stretches into the accommodating groove and is propped against one end of the seesaw, the other end of the seesaw is propped against the lower end of the secondary ejection component, and the upper end of the secondary ejection component is higher than the primary ejection component. The utility model can simultaneously achieve the two-stage ejection, thereby improving the demolding efficiency.
Description
Technical field
The utility model 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 utility model purpose provides a kind of ejecting mechanism that can realize that plastic ejects rapidly.
For achieving the above object, the technical solution adopted in the utility model is: a kind of ejecting mechanism of injection mold, it comprises
Be slidably disposed on following liftout plate between the plate of dynamic model entity plate and back, be fixedly installed on described liftout plate down top upper ejector plate, 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 lower end of described two-stage system motion block has at least part to be inserted in the described accepting groove, and the bottom of described two-stage system motion block is against on the 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 utility model compared with prior art has following advantage and effect: the utility model 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 utility model 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 utility model when matched moulds;
Accompanying drawing 2 is ejecting mechanism of the present utility model schematic diagram (when ejection piece does not eject) when die sinking;
Accompanying drawing 3 is the schematic diagram of ejecting mechanism of the present utility model after finishing one-level and ejecting;
Accompanying drawing 4 is the schematic diagram of ejecting mechanism of the present utility model 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 utility model 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 utility model 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 utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
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 201020243259 CN201721017U (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020243259 CN201721017U (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201721017U true CN201721017U (en) | 2011-01-26 |
Family
ID=43489306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020243259 Expired - Fee Related CN201721017U (en) | 2010-06-30 | 2010-06-30 | Ejection mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201721017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875229A (en) * | 2010-06-30 | 2010-11-03 | 圣美精密工业(昆山)有限公司 | Ejection mechanism for injection mould |
| CN102672910A (en) * | 2012-05-21 | 2012-09-19 | 昆山鑫泰利精密模具有限公司 | Rocker male mold core-pulling mechanism |
-
2010
- 2010-06-30 CN CN 201020243259 patent/CN201721017U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875229A (en) * | 2010-06-30 | 2010-11-03 | 圣美精密工业(昆山)有限公司 | Ejection mechanism for injection mould |
| CN102672910A (en) * | 2012-05-21 | 2012-09-19 | 昆山鑫泰利精密模具有限公司 | Rocker male mold core-pulling mechanism |
| CN102672910B (en) * | 2012-05-21 | 2014-07-23 | 昆山鑫泰利精密模具有限公司 | Rocker male mold core-pulling mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130630 |