CN209832503U - Secondary ejection structure - Google Patents
Secondary ejection structure Download PDFInfo
- Publication number
- CN209832503U CN209832503U CN201920432458.2U CN201920432458U CN209832503U CN 209832503 U CN209832503 U CN 209832503U CN 201920432458 U CN201920432458 U CN 201920432458U CN 209832503 U CN209832503 U CN 209832503U
- Authority
- CN
- China
- Prior art keywords
- plate
- ejector
- thimble board
- ejector pin
- pull rod
- 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
Links
Abstract
The utility model discloses a secondary ejection structure, comprising a base plate, the lower bolster and set up the first thimble board between bottom plate and lower bolster, the second thimble board, be provided with the guide pillar between bottom plate and the lower bolster, first thimble board, it is provided with the guide pin bushing all to correspond the guide pillar on the second thimble board, first thimble board and second thimble board can be respectively along guide pillar up-and-down motion, the ejector pin has passed in the bottom plate, the ejector pin passes second thimble board and acts on first thimble board, be provided with the pull rod on the first thimble board towards the second thimble board, the pull rod passes second thimble board and the tip is provided with the flange, it is provided with the stroke groove to correspond the flange on the second thimble board, the cover is equipped with the spring on the pull rod, the spring is arranged in the stroke groove and both ends are spacing by flange and second thimble board respectively, it is provided with spacing post to the bottom plate on the lower bolster, be provided with spacing step on the spacing post, first thimble board, The second ejector pin plate is provided with through holes corresponding to the limiting columns respectively, and the through holes of the second ejector pin plate are limited by limiting steps.
Description
Technical Field
The utility model relates to an injection mold field especially relates to a secondary is ejecting structure.
Background
Injection molds are tools for producing molded articles and are used in a wide variety of applications. The product is required to be taken out of the mold after being molded and can be ejected once, however, sometimes, because the product is special in shape or has special requirements during production, the product is still in a cavity after being ejected once or cannot fall off automatically, one ejection action needs to be added again, and final demolding is finished through two ejections, which is called secondary ejection.
The secondary ejection structure can enable the ejection process to be more convenient and smooth, and for products with larger ejection stroke requirements, the force applied when the ejector pin is ejected can be reduced by utilizing the secondary ejection, so that the defects on the products caused by ejection are avoided.
At present, a secondary ejection mechanism used in a plurality of dies has the defects of complex structural design, more mechanism parts, high development and manufacturing cost of the dies, easy abrasion, easy ejection failure, overlarge ejection force and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the above-mentioned problem, provide a simple structure's ejecting structure of secondary, realize the ejecting action of secondary, the help drawing of patterns.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a secondary ejection structure comprises a bottom plate, a lower template, a first ejector plate and a second ejector plate which are arranged between the bottom plate and the lower template, guide posts are arranged between the bottom plate and the lower template, guide sleeves are arranged on the first ejector plate and the second ejector plate corresponding to the guide posts, the first ejector plate and the second ejector plate can respectively move up and down along the guide posts, an ejection rod penetrates through the bottom plate and acts on the first ejector plate through the second ejector plate, a pull rod is arranged on the first ejector plate towards the second ejector plate, the pull rod penetrates through the second ejector plate, a flange is arranged at the end part of the pull rod, a stroke groove is arranged on the second ejector plate corresponding to the flange, a spring is sleeved on the pull rod, the spring is positioned in the stroke groove, two ends of the spring are respectively limited by the flange and the second ejector plate, a limit post is arranged on the lower template towards the bottom plate, a limit step is arranged on the limit post, a through hole is respectively arranged on the first ejector plate and the second ejector plate corresponding to the limit, the through hole of the second ejector pin plate is smaller than the through hole of the first ejector pin plate, and the through hole of the second ejector pin plate is limited by the limiting step.
Wherein, the first thimble plate is provided with a first thimble, and the second thimble plate is provided with a second thimble.
Wherein, the first thimble board and the second thimble board are assembled by two boards.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, the ejecting simple structure of secondary through two thimble boards of spring linkage, the spacing one of them of spacing post of rethread realizes that the secondary is ejecting, because the spring action has carried out the buffering to secondary ejection power to have the reset action, realized supplementary drawing of patterns function, it is little to the product damage, the shaping cycle is short, and production efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a secondary ejection structure provided by the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides a secondary ejection structure, which includes a bottom plate 3, a lower plate 4, and a first ejector plate 1 and a second ejector plate 2 disposed between the bottom plate 3 and the lower plate 4, wherein the first ejector plate 1 is provided with a first ejector pin 15, and the second ejector plate 2 is provided with a second ejector pin 16. In this embodiment, the first ejector plate 1 and the second ejector plate 2 are formed by assembling two plates, and the ejector pins, the guide sleeves and other functional parts are convenient to mount and fix.
A guide pillar 5 is arranged between the bottom plate 3 and the lower template 4, a guide sleeve 6 is arranged on the first ejector pin plate 1 and the second ejector pin plate 2 corresponding to the guide pillar 5, and the first ejector pin plate 1 and the second ejector pin plate 2 can move up and down along the guide pillar 5 respectively.
An ejector rod 7 penetrates through the bottom plate 3, and the ejector rod 7 penetrates through the second ejector plate 2 to act on the first ejector plate 1.
A pull rod 8 is arranged on the first ejector pin plate 1 towards the second ejector pin plate 2, the pull rod 8 penetrates through the second ejector pin plate 2 and the end portion of the pull rod is provided with a flange 9, a stroke groove 10 is formed in the second ejector pin plate 2 corresponding to the flange 9, a spring 11 is sleeved on the pull rod 8, the spring 11 is located in the stroke groove 10, and the two ends of the spring are limited by the flange 9 and the second ejector pin plate 2 respectively.
The lower template 4 is provided with a limiting column 12 towards the bottom plate 3, the limiting column 12 is provided with a limiting step 13, the first ejector pin plate 1 and the second ejector pin plate 2 are respectively provided with a through hole corresponding to the limiting column 12, the through hole 14 of the second ejector pin plate 2 is smaller than that of the first ejector pin plate 1, and the through hole 14 of the second ejector pin plate 2 is limited by the limiting step 13.
The action process is as follows:
firstly, the ejector rod 7 moves upwards, the ejector force acts on the first ejector plate 1, and the first ejector plate 1 drives the second ejector plate 2 to move upwards synchronously through the pull rod 8, so that one-time ejection is realized;
secondly, the second ejector plate 2 moves upwards to the limiting column 12 to limit the second ejector plate, and the ejector rod 7 overcomes the elasticity to continuously drive the first ejector plate 1 to move upwards, so that secondary ejection is realized;
and thirdly, the ejector rod 7 retracts, and the second ejector plate 2 pulls back the first ejector plate 1 through the elastic force of the spring 11 and resets together.
In conclusion, the secondary ejection structure is simple in structure, the two ejector pin plates are linked through the springs, and the secondary ejection is realized through one of the limiting columns, the secondary ejection force is buffered due to the spring action, the secondary ejection structure has a reset action, an auxiliary demolding function is realized, the product damage is small, the molding period is short, and the production efficiency is high.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A secondary ejection structure is characterized by comprising a bottom plate, a lower template, a first ejector plate and a second ejector plate, wherein the first ejector plate and the second ejector plate are arranged between the bottom plate and the lower template, a guide post is arranged between the bottom plate and the lower template, guide sleeves are respectively arranged on the first ejector plate and the second ejector plate corresponding to the guide post, the first ejector plate and the second ejector plate can respectively move up and down along the guide post,
an ejector rod penetrates through the bottom plate and acts on the first ejector plate after penetrating through the second ejector plate,
a pull rod is arranged on the first ejector retainer plate towards the second ejector retainer plate, the pull rod penetrates through the second ejector retainer plate, a flange is arranged at the end part of the pull rod, a stroke groove is arranged on the second ejector retainer plate corresponding to the flange, a spring is sleeved on the pull rod, the spring is positioned in the stroke groove, and the two ends of the spring are respectively limited by the flange and the second ejector retainer plate,
the lower template is provided with a limiting column towards the bottom plate, the limiting column is provided with a limiting step, the first ejector pin plate and the second ejector pin plate are respectively provided with a through hole corresponding to the limiting column, the through hole of the second ejector pin plate is smaller than the through hole of the first ejector pin plate, and the through hole of the second ejector pin plate is limited by the limiting step.
2. The double ejection structure of claim 1, wherein: the first ejector pin plate is provided with a first ejector pin, and the second ejector pin plate is provided with a second ejector pin.
3. The double ejection structure of claim 1, wherein: the first ejector pin plate and the second ejector pin plate are assembled by two plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432458.2U CN209832503U (en) | 2019-04-01 | 2019-04-01 | Secondary ejection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432458.2U CN209832503U (en) | 2019-04-01 | 2019-04-01 | Secondary ejection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209832503U true CN209832503U (en) | 2019-12-24 |
Family
ID=68909214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920432458.2U Expired - Fee Related CN209832503U (en) | 2019-04-01 | 2019-04-01 | Secondary ejection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209832503U (en) |
-
2019
- 2019-04-01 CN CN201920432458.2U patent/CN209832503U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |