CN203919595U - Mold Core-pulling Mechanism and mould - Google Patents
Mold Core-pulling Mechanism and mould Download PDFInfo
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- CN203919595U CN203919595U CN201420349018.8U CN201420349018U CN203919595U CN 203919595 U CN203919595 U CN 203919595U CN 201420349018 U CN201420349018 U CN 201420349018U CN 203919595 U CN203919595 U CN 203919595U
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- core
- plastic
- pulling mechanism
- spirality
- distortion
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Abstract
The utility model discloses a kind of Mold Core-pulling Mechanism and mould, Mold Core-pulling Mechanism comprises and is used to form the profiled part of plastic inboard groove and the release parts for plastic is departed from from die cavity and/or profiled part, wherein, profiled part be can spirality the core of distortion, the core of the core that this can spirality distortion is fixed on the moving platen of mould.Core-pulling mechanism of the present utility model has adopted core that can spirality distortion, realizes the plastic demoulding by the distortion of core, and simple in structure compared with undercut core-pulling mechanism is easy to manufacture and assembling.
Description
Technical field
The utility model relates to a kind of Mold Core-pulling Mechanism, is specifically related to the core-pulling mechanism of the demoulding inside a kind of plastic that is provided with whole circle groove for inner side.
Background technology
Plastic products use is in daily life more and more extensive, and category is also more and more.But in the production process of plastic products, in the time that injection molding plastic has the hole different from die sinking direction, groove or boss, plastic just can not directly be released the demoulding by ejecting mechanism.Now, on mould, the part at this place of moulding must be designed to the moving core that can be displaced sideways, to first side direction forming part was extracted out before the plastic demoulding is released, and then plastic is released in mould.Drive side direction forming part to do the mechanism that undercut looses core and reset and be called as undercut core-pulling mechanism, common undercut core-pulling mechanism mainly contains Angle Pin undercut core-pulling mechanism, curved pin undercut core-pulling mechanism, inclined guide groove undercut core-pulling mechanism, angled-lift splits undercut core-pulling mechanism, rack-and-pinion undercut core-pulling mechanism, flexible member undercut core-pulling mechanism etc.
The inner side of some plastic products can arrange the groove of whole circle, as the inner side of the plastic product such as magnifying glass, vanity mirror is provided for installing the whole circle groove (accompanying drawing 1 indicative icon the cross-section structure of groove) of eyeglass.Present stage, be provided with the demoulding of the plastic product of whole circle groove for this type of inner side, the undercut core-pulling mechanisms such as the normally angled-lift splits conventionally adopting.But, adopt this type of undercut core-pulling mechanism to make the structure relative complex of mould, and the manufacture meeting of mould is more difficult.In addition, in the use procedure of mould, the wear extent of this type of somatotype core-pulling mechanism is larger, can have a strong impact on the service life of mould.
Utility model content
Consider the problems referred to above of prior art, the utility model discloses a kind of Mold Core-pulling Mechanism, comprise and be used to form the profiled part of plastic inboard groove and the release parts for plastic is departed from from die cavity and/or profiled part.Wherein, profiled part be can spirality the core of distortion, the core of the core that this can spirality distortion is fixed on the moving platen of mould.In the time that plastic is shaped, can spirality the core of distortion in same plane, its outer rim needs the groove of shaping to match with plastic inner side; In the time of the plastic demoulding, can spirality the core of core of distortion fix, remainder moves vertically, its outer rim is inwardly shunk.Adopt said structure, be different from the mode of available technology adopting undercut core-pulling mechanism, the mode that plastic produces spirality distortion by core in the process of releasing the demoulding realizes the plastic demoulding, makes the simple in structure of this core-pulling mechanism, is easy to manufacture and assembling.
As preferably, release parts are set below moving platen, to release parts and comprise push rod, ejector pin retaining plate, push pedal and release link, push rod one end contacts with core and plastic through moving platen, and the other end is arranged on ejector pin retaining plate, and ejector pin retaining plate and push pedal are fixed; Wherein, the push rod contacting with core is bulb push rod.Adopt such structure, owing to being that point contacts between bulb push rod and core, can reduce the friction between push rod and core, can increase the service life of core-pulling mechanism; In addition, in the time of the transversely generation a small amount of displacement of core at bulb push rod, (this displacement is no more than the degree of depth of plastic inboard groove, generally to be no more than 2mm), bulb push rod is more beneficial to core than general tack push rod and produces spirality distortion, and then makes plastic and core be easier to realize to separate.
As preferably, core that can spirality distortion is in the plane of core, to have carried out spirality cutting.
As preferably, core that can spirality distortion core is fixed on the moving platen of mould by locating dowel and trip bolt.
As preferably, push rod contacts with outmost turns that can spirality distortion core.
The purpose of this utility model aims to provide a kind of core-pulling mechanism simple in structure.Compared with prior art, one of the beneficial effects of the utility model are: core-pulling mechanism of the present utility model has adopted core that can spirality distortion, realize the plastic demoulding by the distortion of core, compared with undercut core-pulling mechanism simple in structure, be easy to manufacture and assembling.Core-pulling mechanism of the present utility model adopts bulb push rod to make core distortion, owing to being that point contacts between bulb push rod and core, has reduced the friction between push rod and core, has increased the service life of core-pulling mechanism; In addition, in the time of the transversely generation a small amount of displacement of core at bulb push rod, bulb push rod is more beneficial to core than general tack push rod and produces spirality distortion, and then makes plastic and core be easier to realize to separate.
Brief description of the drawings
Fig. 1 indicative icon the cross-section structure of plastic groove;
Fig. 2 indicative icon according to the structure of the Mold Core-pulling Mechanism of an embodiment of the utility model;
Fig. 3 is the A-A cutaway view of Mold Core-pulling Mechanism shown in Fig. 2;
Fig. 4 is the partial enlarged drawing of Mold Core-pulling Mechanism shown in Fig. 3;
Fig. 5 indicative icon the another kind of embodiment of core-pulling mechanism.
In figure, 1-plastic, 101-groove, 201-solid plate, 202-moving platen, 203-core, 204-locating dowel, 205-trip bolt, 206-bulb push rod, 207-tack push rod, 208-release link, 209-ejector pin retaining plate, 210-push pedal, 301-injector push rod.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated, but embodiment of the present utility model is not limited to this.For complete understanding the utility model, numerous details are mentioned in the following detailed description.But it will be understood by those skilled in the art that the utility model can realize without these details.In other example, be not described in detail known method, process, assembly etc., make embodiment fuzzy in order to avoid unnecessary.
The utility model provides the Mold Core-pulling Mechanism of the demoulding inside a kind of plastic that is provided with whole circle groove for inner side.As shown in Fig. 2-Fig. 4, be the structural representation of Mold Core-pulling Mechanism of the present utility model, this core-pulling mechanism comprises core 203, trip bolt 205, locating dowel 204, push rod, release link 208, ejector pin retaining plate 209 and push pedal 210.Wherein, core 203 in its plane, carried out spirality cutting can spirality distortion core, this can spirality the core of core 203 of distortion be fixed on the moving platen 202 in a whole set of mould by trip bolt 205 and locating dowel 204, push rod one end is arranged on ejector pin retaining plate 209, the push rod other end contacts with plastic 1 and core 203 (during for the demoulding to plastic 1 and core 203 applied thrusts through moving platen 202, make plastic 1 demoulding), push pedal 210 (adopts such structure with ejector pin retaining plate 209 is fixing, can uniform stressed for making to be arranged on each push rod on ejector pin retaining plate 209).For making plastic 1 can steadily release the demoulding, here push rod has been arranged on the afterbody and core 203 of plastic 1 handle, be arranged on plastic 1 handle afterbody for general tack push rod 207, being arranged on core 203 is bulb push rod 206.Core-pulling mechanism of the present utility model is to utilize core 203 to be out of shape to realize its inner side groove 101 and to separate with this core 203 releasing the spirality producing in the process of the demoulding, it is owing to contacting for putting between bulb push rod and core that the push rod herein contacting with core 203 is set to bulb push rod 206, can reduce the friction between push rod and core, and then increase the service life of core-pulling mechanism.In addition, in the time of the transversely generation a small amount of displacement of core at bulb push rod, (this displacement is no more than the degree of depth of plastic inboard groove, generally to be no more than 2mm), bulb push rod is more beneficial to core than general tack push rod and produces spirality distortion, and then makes plastic and core be easier to realize to separate.
Further, bulb push rod 206 with can spirality the outmost turns of distortion core 203 contact.
In plastic manufacture process, the solid plate 201 in mould and moving platen 202 and core 203 have formed the die cavity of plastic 1.After injection moulding completes, first solid plate 201 is separated, then utilize injector push rod 301 by thrust in push pedal 210, push pedal 210 is fixing with ejector pin retaining plate 209, the thrust that injector push rod 301 is applied is evenly distributed on each push rod.Bulb push rod 206 acts on core 203, makes core 203 produce spirality distortion, thereby core 203 is separated with plastic 1; Tack push rod 207 acts on plastic 1 handle afterbody, and plastic 1 is separated with moving platen 202.And then complete the demoulding of loosing core of whole plastic.
Certainly, the demoulding of plastic also can realize by mode as shown in Figure 5.At plastic 1 arranged outside technique journal stirrup, tack push rod 207 contacts with technique journal stirrup.While releasing the demoulding, thrust is on technique journal stirrup, and this thrust drives plastic 1 to depart from moving platen 202, and plastic 1 drives core 203 together upwards, thereby makes core 203 produce spirality distortion, and then core 203 is separated with plastic 1.But adopt such structure, may make plastic be out of shape in knockout course, and after the demoulding, also need to remove set technique journal stirrup.
Claims (6)
1. a Mold Core-pulling Mechanism, comprise and be used to form the profiled part of plastic inboard groove, release parts for plastic is departed from from die cavity and/or profiled part, it is characterized in that: described profiled part be can spirality the core of distortion, the core of described core that can spirality distortion is fixed on the moving platen of mould; Wherein,
In the time that plastic is shaped, can spirality the core of distortion in same plane, its outer rim needs the groove of shaping to match with plastic inner side;
In the time of the plastic demoulding, can spirality the core of core of distortion fix, remainder moves vertically, its outer rim is inwardly shunk.
2. Mold Core-pulling Mechanism according to claim 1, it is characterized in that: moving platen below arranges release parts, release parts and comprise push rod, ejector pin retaining plate, push pedal and release link, push rod one end contacts with core and plastic through moving platen, the other end is arranged on ejector pin retaining plate, and ejector pin retaining plate and push pedal are fixed; Wherein, the push rod contacting with core is bulb push rod.
3. Mold Core-pulling Mechanism according to claim 1, is characterized in that: can spirality the core of distortion be in the plane of core, to have carried out spirality cutting.
4. Mold Core-pulling Mechanism according to claim 1, is characterized in that: can spirality the core of distortion core be fixed on the moving platen of mould by locating dowel and trip bolt.
5. Mold Core-pulling Mechanism according to claim 2, is characterized in that: push rod with can spirality the outmost turns of distortion core contact.
6. a mould, is characterized in that: described mould has the core-pulling mechanism as described in as arbitrary in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349018.8U CN203919595U (en) | 2014-06-27 | 2014-06-27 | Mold Core-pulling Mechanism and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349018.8U CN203919595U (en) | 2014-06-27 | 2014-06-27 | Mold Core-pulling Mechanism and mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203919595U true CN203919595U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420349018.8U Expired - Fee Related CN203919595U (en) | 2014-06-27 | 2014-06-27 | Mold Core-pulling Mechanism and mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203919595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111113805A (en) * | 2019-11-29 | 2020-05-08 | 五邑大学 | Mould structure of magnifying glass |
| CN114536695A (en) * | 2022-03-03 | 2022-05-27 | 厦门理工学院 | Flexible demoulding device |
-
2014
- 2014-06-27 CN CN201420349018.8U patent/CN203919595U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111113805A (en) * | 2019-11-29 | 2020-05-08 | 五邑大学 | Mould structure of magnifying glass |
| CN114536695A (en) * | 2022-03-03 | 2022-05-27 | 厦门理工学院 | Flexible demoulding device |
| CN114536695B (en) * | 2022-03-03 | 2023-04-18 | 厦门理工学院 | Flexible demoulding 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: 20141105 Termination date: 20170627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |