CN202517667U - Bushing-type early return mechanism for plastics mould - Google Patents
Bushing-type early return mechanism for plastics mould Download PDFInfo
- Publication number
- CN202517667U CN202517667U CN2012201800532U CN201220180053U CN202517667U CN 202517667 U CN202517667 U CN 202517667U CN 2012201800532 U CN2012201800532 U CN 2012201800532U CN 201220180053 U CN201220180053 U CN 201220180053U CN 202517667 U CN202517667 U CN 202517667U
- Authority
- CN
- China
- Prior art keywords
- resets
- mould
- free end
- bushing
- resetting
- 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
Images
Abstract
The utility model relates to the techniques of mould design and discloses a bushing-type early return mechanism for a plastics mould. The bushing-type early return mechanism for the plastics mould is characterized by comprising a return ejector pin, a guide bushing, and a return ejector bushing, one end of the return ejector pin is fixed on a fixed plate, the guide bushing is fixed inside a moving plate in a penetrating manner, one end of the return ejector bushing is fixed on a push plate, a free end of the return ejector bushing is in clearance fit inside the guide bushing, a free end of the return ejector pin slidably penetrates through the guide bushing and is in interference fit with the free end of the return ejector bushing. The bushing-type early return mechanism can be fitted inside the mould, has few parts, and is simple in structure, easy to process, convenient to operate and reliable in return action.
Description
Technical field
The utility model relates to the mould designing technique, especially relates to a kind of mould of plastics with plug bush type elder generation resetting-mechanism.
Background technology
In the mould of plastics of band side core-drawing mechanism,, should avoid releasing part (push rod or ejector sleeve) during the mould design and side core-drawing mechanism interferes if push rod or ejector sleeve are arranged at side core-pulling bottom.If this situation takes place, will bring catastrophic consequence to mould, as: the mechanical part of mold damage or injector.Therefore, be as far as possible push rod or ejector sleeve are arranged in side direction core or angled-lift splits outside the drop shadow spread on the die joint, if can't accomplish that then mould must add first resetting-mechanism.
General first resetting-mechanism mainly comprises spring elder generation resetting-mechanism and two kinds of the first resetting-mechanisms of fork.Back-moving spring has certain life-span in the spring elder generation resetting-mechanism, lost efficacy easily, especially in the precompressed of spring than choosing when unreasonable with compression ratio, back-moving spring can very fast fatigue failure, in case inefficacy then can lose the function that resets earlier.Fork elder generation resetting-mechanism component part is many, must be assemblied in the both sides up and down of mould bases, and for not damaging mechanism by pressure, the downside of mould bases also should add does four support columns, and die manufacturing cost is high, inconvenient operation.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing first resetting-mechanism, the purpose of the utility model is to provide a kind of mould of plastics with plug bush type elder generation resetting-mechanism, can be assemblied in mould inside; Its component part is few, and is simple in structure, handling ease; Easy to operate, homing action is reliable.
In order to achieve the above object, the utility model adopts following technical scheme to be achieved.
A kind of mould of plastics is characterized in that with plug bush type elder generation resetting-mechanism, comprises that fairlead, an end that an end is fixed on the push rod that resets on the solid plate, runs through and is fixed in the moving platen are fixed on the resetting top tube in the push pedal; The free end matched in clearance of the said top tube that resets is in fairlead, and the free end of the said push rod that resets slides and runs through fairlead, and pushes up the free end interference fit of tube with said resetting.
The characteristics of the utility model are with further improving:
The said free end that resets the top tube is provided with the convenient outer chamfering of inserting fairlead.
The said free end that resets the top tube is provided with the interior chamfering that the convenient said push rod that resets inserts.
The said free end that resets the top tube is uniformly distributed with a plurality of flute profile gap along the circumference.
The internal diameter of said fairlead is big down little, and its reducing position is to reset to push up the reset position of tube.
The said top tube that resets selects for use the spring steel manufacturing to form.
The mould of plastics of the utility model is with in the plug bush type elder generation resetting-mechanism, and the free end matched in clearance of the top tube that resets is in fairlead, and the free end of the push rod that resets slides and runs through fairlead, and with the top tube interference fit that resets; Its principle is to utilize the free-ended over-surplus fit structure of reset push rod and the top tube that resets, and the push rod that resets is pushed up reset on the tube of top, making reset top tube and push pedal go ahead of the rest stressed and reset.This plug bush type elder generation resetting-mechanism is assemblied in mould inside, and compact conformation is easy to manufacture; Reset push rod, reset top tube and guide cylinder can adopt rigid structure, in action is carried out, do not have strain and relaxation, and kinematic accuracy is high, and mechanism's life-span is long, keeps in repair and easy to adjust; In addition, this plug bush type elder generation resetting-mechanism component part is few, handling ease, and easy to operate, homing action is reliable.
Description of drawings
Below in conjunction with the description of drawings and the specific embodiment the utility model is explained further details.
Fig. 1 is the sketch map of a kind of mould of plastics of the utility model with plug bush type elder generation resetting-mechanism;
Fig. 2 is the enlarged diagram of A part among Fig. 1;
Among the figure: 1, the push rod that resets; 2, fairlead; 3, gasket ring; 4, reset top tube; 5, Bottom clamp plate; 6, push pedal; 7, ejector pin retaining plate; 8, screw; 9, moving platen; 10, solid plate; 11, top clamping plate, 12, the grooved gap.
The specific embodiment
With reference to shown in Figure 1, a kind of mould of plastics that is the utility model mainly comprises the push rod 1 that resets, fairlead 2 and resets top tube 4 with plug bush type elder generation resetting-mechanism.Wherein, push rod 1 upper end that resets is fixed on the solid plate 10 through top clamping plate 11, and its lower end (being free end) run through solid plate 10 and stretched out downwards; Fairlead 2 runs through and is fixed in the moving platen 9, specifically is fastening below moving platen 9 by screw 8 through gasket ring 3; The reset lower end of top tube 4 is fixing with push pedal 6 through ejector pin retaining plate 7, and its upper end (being free end) is stretched in the fairlead 2, and with fairlead 2 matched in clearance.In addition, the interior chamfering that free end is provided with the outer chamfering of convenient insertion fairlead 2 and the push rod 1 that conveniently resets inserts that resets and push up tube 4.The free end of push rod 1 of resetting slides and to run through fairlead 2, and with the free end interference fit of the top tube 4 that resets.
During matched moulds; Moving platen 9 moves upward; The free end that is fixed on the push rod 1 that resets on the solid plate 10 at first contact with the end face of the top tube 4 that resets and since reset push rod 1 with top 4 interference fit that reset, push rod 1 diameter dimension that resets is slightly larger than the diameter of bore size of the push rod 4 that resets; So under the mold clamping force effect; The top tube 4 that resets moves downward simultaneously with the push rod 1 that resets and forces ejector pin retaining plate 7 and push pedal 6 to move downward, thereby makes push rod (ejector sleeve) ejecting mechanism get back to the position of not releasing plastic, i.e. ejecting mechanism elder generation horizontal reset.Subsequently, side core-drawing mechanism is just accomplished the reseting movement of side core.At last, under the mold clamping force effect, the push rod 1 that resets inserts in the endoporus of the top tube 4 that resets, and continues matched moulds and makes mould closed fully, avoids push rod in the matched moulds process (or ejector sleeve) and side core to interfere and mold damage.
Optimizing structure of present embodiment be, the top tube 1 that resets selects for use the spring steel manufacturing to form, and its free end is uniformly distributed with a plurality of flute profile gap 12 along the circumference, for example four flute profile gap 12; And the internal diameter of fairlead 2 is big down little, and its reducing position is to reset to push up the reset position of tube 4.When ejecting mechanism elder generation horizontal reset; After side core-drawing mechanism was just accomplished the reseting movement of side core, under the mold clamping force effect, the push rod 1 that resets pushed and forces outside the port of pushing up tube 4 that resets and lets; Reset push rod 1 and reset and between the top tube 4 thrust takes place no longer, and get into smoothly within the top tube 4 that resets.Like this, mold clamping force is little, and is little to the impact of mould, can prolong die life.
Although more than combine accompanying drawing that the embodiment of the utility model is described, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protected, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the utility model protection.
Claims (6)
1. a mould of plastics is characterized in that with plug bush type elder generation resetting-mechanism, comprises that fairlead, an end that an end is fixed on the push rod that resets on the solid plate, runs through and is fixed in the moving platen are fixed on the resetting top tube in the push pedal; The free end matched in clearance of the said top tube that resets is in fairlead, and the free end of the said push rod that resets slides and runs through fairlead, and pushes up the free end interference fit of tube with said resetting.
2. mould of plastics according to claim 1 is characterized in that with plug bush type elder generation resetting-mechanism the said free end that resets the top tube is provided with the convenient outer chamfering of inserting fairlead.
3. mould of plastics according to claim 1 is characterized in that with plug bush type elder generation resetting-mechanism the said free end that resets the top tube is provided with the interior chamfering that the convenient said push rod that resets inserts.
4. mould of plastics according to claim 1 is characterized in that with plug bush type elder generation resetting-mechanism the said free end that resets the top tube is uniformly distributed with a plurality of flute profile gap along the circumference.
5. mould of plastics according to claim 1 is characterized in that with plug bush type elder generation resetting-mechanism the internal diameter of said fairlead is big down little, and its reducing position is to reset to push up the reset position of tube.
6. mould of plastics according to claim 1 is characterized in that with plug bush type elder generation resetting-mechanism the said top tube that resets selects for use the spring steel manufacturing to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201800532U CN202517667U (en) | 2012-04-25 | 2012-04-25 | Bushing-type early return mechanism for plastics mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201800532U CN202517667U (en) | 2012-04-25 | 2012-04-25 | Bushing-type early return mechanism for plastics mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517667U true CN202517667U (en) | 2012-11-07 |
Family
ID=47100632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201800532U Expired - Fee Related CN202517667U (en) | 2012-04-25 | 2012-04-25 | Bushing-type early return mechanism for plastics mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517667U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881849A (en) * | 2014-12-29 | 2016-08-24 | 宁波东昊汽车部件有限公司 | Pre-reset mechanism for mold |
| CN109940799A (en) * | 2019-04-17 | 2019-06-28 | 珀尔曼机电(昆山)有限公司 | A kind of ejector retainner plate elder generation repositioning control device |
-
2012
- 2012-04-25 CN CN2012201800532U patent/CN202517667U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881849A (en) * | 2014-12-29 | 2016-08-24 | 宁波东昊汽车部件有限公司 | Pre-reset mechanism for mold |
| CN109940799A (en) * | 2019-04-17 | 2019-06-28 | 珀尔曼机电(昆山)有限公司 | A kind of ejector retainner plate elder generation repositioning control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202412609U (en) | Mould mechanism with pitched roof for pulling inner side core and slider for pulling outer side core | |
| CN202517667U (en) | Bushing-type early return mechanism for plastics mould | |
| CN101774239B (en) | Ejector sleeve ejecting structure in plastic mould slide block | |
| CN203063007U (en) | Mold ejector pin | |
| CN201405490Y (en) | Slanted-top ejecting mechanism with internal ejector | |
| CN102689421A (en) | Secondary ejection mechanism of connector shell mould for aerospace | |
| CN203600532U (en) | Inversion type injection mold structure | |
| CN103144255A (en) | Mold mechanism realizing inner core extraction by oblique ejectors and outer core extraction by outer sliding blocks | |
| CN201268076Y (en) | Mechanical linking secondary oblique jacking mechanism for injection mold | |
| CN203063073U (en) | Wedged rod triangular slider type first reset mechanism | |
| CN103358437A (en) | Mold ejector pin | |
| CN202911104U (en) | Mould differential ejection structure | |
| CN203496189U (en) | Gas cap | |
| CN202928476U (en) | Detection pin assembly used for detecting product surface hole position | |
| CN201268074Y (en) | Double post rod oblique jacking structure for injection mold | |
| CN202623200U (en) | Secondary ejection mechanism of connector shell mold for aerospace | |
| CN201712092U (en) | Secondary ejection and forced demolding mechanism | |
| CN203344222U (en) | Mold for product of cylinder with deep cavity and groove in wall | |
| CN202318796U (en) | Die mechanism with lapped cavity | |
| CN207207006U (en) | Injection mold and its mold ejection structure | |
| CN202241858U (en) | Replaceable thimble subassembly for injection molding machine | |
| CN203409933U (en) | Mold thimble | |
| CN201385203Y (en) | Pressure head of press machine | |
| CN201244890Y (en) | Nose spike oil cylinder structure of injection moulding machine | |
| CN202685214U (en) | Injection mold lifter disengaging mechanism |
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: 20121107 Termination date: 20140425 |