CN201841637U - Angle ejector rod protection device of injection mold - Google Patents
Angle ejector rod protection device of injection mold Download PDFInfo
- Publication number
- CN201841637U CN201841637U CN2010205803901U CN201020580390U CN201841637U CN 201841637 U CN201841637 U CN 201841637U CN 2010205803901 U CN2010205803901 U CN 2010205803901U CN 201020580390 U CN201020580390 U CN 201020580390U CN 201841637 U CN201841637 U CN 201841637U
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- CN
- China
- Prior art keywords
- ejector rod
- angle ejector
- injection mold
- self
- core
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- Expired - Fee Related
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Abstract
The utility model discloses an angle ejector rod protection device of an injection mold. The injection mold comprises a mold core, an angle ejector rod and a universal slide seat, wherein the mold core is provided with an internal hole in which the front part of the angle ejector rod can stretch. The tail part of the angle ejector rod is arranged on the universal slide seat of the injection mold. The angle ejector rod protection device is characterized in that the front part of the angle ejector rod is also sheathed with a first self-lubricating guide sleeve and a second self-lubricating guide sleeve, a distance sleeve is arranged between the first self-lubricating guide sleeve and the second self-lubricating guide sleeve. Compared with the prior art, the utility model has the advantages as follows: the part of the angle ejector rod inserted in the mold core employs a double guide sleeve structure, so that the problem that the processing is inconvenient by using single guide sleeve is solved; and on the other hand, the distance sleeve is arranged between the two guide sleeves, and is designed with unequal distances to the external wall of the angle ejector rod and the wall of the internal hole of the mold core, so that the friction between the angle ejector rod and the distance sleeve can be reduced effectively, and the wear of the angle ejector rod can be reduced.
Description
Technical field
The utility model relates to a kind of angle ejector rod protective device of injection mold.
Background technology
In plastics injection mould, oblique top is a kind of the most frequently used back-off stripping means, and in the oblique top stripping means, angle ejector rod is main structure, has directly determined the life-span of mould its service life.Usually the length of angle ejector rod is longer, in use be easy to rub in core, therefore, in order to reduce the wearing and tearing of angle ejector rod, improve its service life, traditional method is directly to process the bar hole that can supply angle ejector rod to insert in core, and the diameter of bar hole afterbody is a bit larger tham the diameter of angle ejector rod, can realize the empty avoiding design, avoid the direct friction of angle ejector rod and core.In the improvement in later stage; can a sheathed again self-oiling guide bushing at angle ejector rod insert type core segment; with the protection angle ejector rod; but the angle ejector rod of insert type core segment is longer usually; self-oiling guide bushing is long then is inconvenient to process; general only put self-oiling guide bushing in the second half section that angle ejector rod inserts core, angle ejector rod inserts fore-end in the core and remains with core and rub mutually, and its result of use is still bad.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of at above-mentioned prior art present situation can effectively improve service life and avoid angle ejector rod and the angle ejector rod protective device of the injection mold of core direct friction.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of angle ejector rod protective device of injection mold; described injection mold includes core, angle ejector rod and universal slide; wherein; described core offers the endoporus that can supply described angle ejector rod front portion to stretch into; the afterbody of described angle ejector rod is arranged on the universal slide of described injection mold; it is characterized in that: the front portion of described angle ejector rod also is arranged with first self-oiling guide bushing and second self-oiling guide bushing, is provided with spacer between described first self-oiling guide bushing and second self-oiling guide bushing.
In order to reduce the friction between angle ejector rod and the spacer effectively, guarantee the installation and the location of self-oiling guide bushing, as preferably, be formed with first gap between the inwall of described spacer and the outer wall of described angle ejector rod, be formed with second gap between the endoporus hole wall of the outer wall of described spacer and described core, described first gap is greater than second gap.
As further preferred, described injection mold also includes needle plate, push pedal and base plate, and described universal slide is arranged on the described needle plate, and described needle plate is laminated in the described push pedal, and described push pedal is positioned at described base plate top.
Compared with prior art, advantage of the present utility model is: the part of inserting core at angle ejector rod has adopted two guide pin bushing structures, the problem that has overcome single guide pin bushing process and be inconvenient to process, on the other hand, between two guide pin bushing guide pin bushings, also be provided with spacer, and spacer is with respect to being not equidistant empty avoiding design between angle ejector rod outer wall and the core endoporus hole wall, thereby can reduce the friction of angle ejector rod and spacer effectively, reduce the wearing and tearing of angle ejector rod.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is an I portion partial enlarged drawing shown in Figure 1.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the injection mold of present embodiment includes core 1, angle ejector rod 2, universal slide 3, needle plate 4, push pedal 5 and base plate 6, and wherein, universal slide 3 is arranged on the needle plate 4, and needle plate 4 is laminated in the push pedal 5, and push pedal 5 is positioned at the top of base plate 6;
Be provided with slanted kicking block 7 in the core, core 1 also offers the endoporus 11 that can supply angle ejector rod 2 front portions to stretch into, the afterbody of angle ejector rod 2 is arranged on the universal slide 3 of injection mold, the front portion of angle ejector rod 2 is arranged with first self-oiling guide bushing 81 and second self-oiling guide bushing 82, be provided with spacer 83 between first self-oiling guide bushing 81 and second self-oiling guide bushing 82, wherein, be formed with the first gap h1 between the outer wall of the inwall of spacer 83 and angle ejector rod 2, be formed with the second gap h2 between endoporus 11 hole walls of the outer wall of spacer 83 and core 1, the first gap h1 is greater than the second gap h2.
Present embodiment has adopted two fairlead structures, overcome the long problem of being inconvenient to process of single guide pin bushing on the one hand, in the middle of two guide pin bushings, increased spacer 83 on the other hand and do inside and outside not to wait empty avoiding (be h1＞h2), rub with spacer 83 thereby can effectively reduce angle ejector rod 2.The endoporus of present embodiment core is by the moulding of depth drill time processing, can guarantee the installation concentricity between angle ejector rod 2 and self-oiling guide bushing, the spacer, again in conjunction with the universal slide on the needle plate, the angle ejector rod 2 that makes moves very steady in the die sinking process, significantly improve the service life of angle ejector rod 2, can reach 500,000 times.
Claims (3)
1. the angle ejector rod protective device of an injection mold; described injection mold includes core, angle ejector rod and universal slide; wherein; described core offers the endoporus that can supply described angle ejector rod front portion to stretch into; the afterbody of described angle ejector rod is arranged on the universal slide of described injection mold; it is characterized in that: the front portion of described angle ejector rod also is arranged with first self-oiling guide bushing and second self-oiling guide bushing, is provided with spacer between described first self-oiling guide bushing and second self-oiling guide bushing.
2. the angle ejector rod protective device of injection mold according to claim 1; it is characterized in that: be formed with first gap between the inwall of described spacer and the outer wall of described angle ejector rod; be formed with second gap between the endoporus hole wall of the outer wall of described spacer and described core, described first gap is greater than second gap.
3. the angle ejector rod protective device of injection mold according to claim 1 and 2; it is characterized in that: described injection mold also includes needle plate, push pedal and base plate; described universal slide is arranged on the described needle plate, and described needle plate is laminated in the described push pedal, and described push pedal is positioned at described base plate top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205803901U CN201841637U (en) | 2010-10-26 | 2010-10-26 | Angle ejector rod protection device of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205803901U CN201841637U (en) | 2010-10-26 | 2010-10-26 | Angle ejector rod protection device of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201841637U true CN201841637U (en) | 2011-05-25 |
Family
ID=44036541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205803901U Expired - Fee Related CN201841637U (en) | 2010-10-26 | 2010-10-26 | Angle ejector rod protection device of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201841637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017005032A1 (en) * | 2015-07-06 | 2017-01-12 | 北京谊安医疗系统股份有限公司 | Automatic-lubricating ejector rod guiding device |
-
2010
- 2010-10-26 CN CN2010205803901U patent/CN201841637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017005032A1 (en) * | 2015-07-06 | 2017-01-12 | 北京谊安医疗系统股份有限公司 | Automatic-lubricating ejector rod guiding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |