CN103273626A - Novel core drawing device - Google Patents
Novel core drawing device Download PDFInfo
- Publication number
- CN103273626A CN103273626A CN 201310241063 CN201310241063A CN103273626A CN 103273626 A CN103273626 A CN 103273626A CN 201310241063 CN201310241063 CN 201310241063 CN 201310241063 A CN201310241063 A CN 201310241063A CN 103273626 A CN103273626 A CN 103273626A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- core
- screw
- rod
- moving spring
- 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.)
- Pending
Links
Abstract
The invention discloses a novel core drawing device which comprises a stress application rod, a connecting rod, a fixed rotating shaft and a core drawing component, wherein the connecting rod is rotationally arranged on the rotating shaft; the core drawing component is connected with the rotating shaft of the connecting rod; the stress application rod is in contact with the connecting rod; the core drawing component comprises a side core, a reset spring, a limiting baffle and a screw; the screw is connected with the connecting rod; one end of the screw passes through the limiting baffle, and is connected with the side core; the other end of the screw is connected with the connecting rod; one end of the reset spring is connected with the limiting baffle; and the screw is connected with the other end of the reset spring. During the core drawing process, the operation is simple, the core drawing process property is good, the cost is low, and the novel core drawing device is suitable for various small and medium sized injection molding parts.
Description
Technical field
The present invention relates to the shaping mould field, specifically refer to novel core-pulling device.
Background technology
The injection molding process process of plastic mainly comprises filling-pressurize-4 stages such as cooling-demoulding, and this 4 stages are directly determining the Forming Quality of goods, and these 4 stages are complete and continuous processes.The demoulding is last link in the injection mo(u)lding circulation.Though the cold solid moulding of injection-molded item, the demoulding still has very significant effects to Products Quality, and stripping means is improper, may cause product unbalance stress when the demoulding, causes defectives such as product distortion when ejecting.To select suitable stripping means according to the design feature of product during designing mould, to guarantee product quality.
After the injection moulding, plastic is cooling and shaping in mould, and when having apertura lateralis or medial and lateral on the plastic when recessed, plastic can not directly be deviate from from mould.Must make moulding side opening or the recessed part of side movable this moment, and this part is called side core.Before the plastic demoulding, must extract side core out, and then from mould, release plastic.Because the contraction of plastic volume produces package power to side core, the power of loosing core that core-pulling mechanism is required must overcome the resistance of loosing core because package power is caused, could pull out side core.Because of the restriction of plastic products characteristics, in the time can't adopting motor-driven loosing core, just must employing manually loose core.
Summary of the invention
The present invention is by arranging novel core-pulling device, and side core problem such as be difficult to loose core when solving the demoulding reaches the purpose of the efficient demoulding.
Purpose of the present invention reaches by the following technical programs:
The novel core-pulling device of the present invention comprises boosting-rod, connecting rod, fixing rotating shaft and the assembly of loosing core, and connecting rod rotates and is arranged in the rotating shaft, and the described assembly of loosing core links to each other with the rotating shaft of connecting rod, and boosting-rod contacts with connecting rod; The described assembly of loosing core comprises side core, back-moving spring, postive stop baffle and screw, and screw links to each other with connecting rod, and an end of described screw passes postive stop baffle, and links to each other with side core, and the other end of screw links to each other with connecting rod; One end of back-moving spring links to each other with postive stop baffle, and screw links to each other with the other end of back-moving spring.After injection moulding is finished, and cooling finishes, just begin the demoulding.Injection moulding machine mould open makes boosting-rod move up and the contacting of disengaging and connecting rod; Groups of springs under the connecting rod provides sufficient elastic force to act on the connecting rod, makes an end of connecting rod do and turn clockwise that the other end is correspondingly done and is rotated counterclockwise; The mobile displacement that drives the assembly of loosing core of connecting rod, screw moves down along certain angle, and the side core that links to each other with screw simultaneously is also mobile thereupon; Back-moving spring is stretched, and the postive stop baffle between side core and the connecting rod is limited in the displacement of side core in certain scope, avoid the excessive stretching of back-moving spring and cause the fracture; At this moment, side core breaks away from plastic, has finished the action of loosing core.
The injection machine matched moulds makes boosting-rod move down, and boosting-rod contacts with connecting rod, and connecting rod is under the active force of boosting-rod, and the stressed end of connecting rod is done and is rotated counterclockwise, and the other end is done clockwise motion, and the groups of springs under the connecting rod is compressed; Back-moving spring moves up along certain angle fast owing to automatically replying the drive screw simultaneously, finishes homing action.In the whole process, simple to operate, the processing performance of loosing core is good, and cost is low, is applicable to multiple middle-size and small-size moulding.
Further, comprise also being arranged on connecting rod near the groups of springs of boosting-rod one bottom portion that described groups of springs is made of a plurality of scroll springs.Adopt a plurality of scroll springs, can provide stronger power for the rotation of connecting rod, make it to finish fast the action of loosing core, improve the production efficiency of injection mold; When the injection machine matched moulds, boosting-rod moves down and acts on connecting rod, makes it to be subjected to an impulsive force simultaneously, and Device element has been protected in the impulsive force that produces being cushioned of groups of springs better, has improved the service life of equipment.
Further, described back-moving spring is wrapped on the screw, and as preferably, described back-moving spring is memory alloy spring.Because the long-time use of injection machine, die sinking matched moulds constantly, loosing core, back-moving spring is also constantly shrinking diastole in the assembly, be easy to cause metal fatigue or fracture, this alloy spring of memory alloy spring can produce distortion under external force, when external force is removed, under certain temperature condition, can return to the original form, so it has the restore funcitons more than 1,000,000 times, be enough to satisfy for a long time and use.
Further, as preferably, the distance of loosing core is less than 80 ㎜.The distance of loosing core is oversize, makes mould specification increase thereby can make back-moving spring or side core length increase; The distance of loosing core is too short, can make side core not extract out fully from plastic.Be limited to injection machine internal structure layout, the distance limit of loosing core is below 80 ㎜, and each parts normally carries out in the assembly that can guarantee to loose core.
The present invention compared with prior art, have following advantage and a beneficial effect:
1 the present invention includes boosting-rod, connecting rod, fixing rotating shaft and the assembly of loosing core, and connecting rod rotates and is arranged in the rotating shaft, and the described assembly of loosing core links to each other with the rotating shaft of connecting rod, and boosting-rod contacts with connecting rod; The described assembly of loosing core comprises side core, back-moving spring, postive stop baffle and screw, and screw links to each other with connecting rod, and an end of described screw passes postive stop baffle, and links to each other with side core, and the other end of screw links to each other with connecting rod; One end of back-moving spring links to each other with postive stop baffle, and screw links to each other with the other end of back-moving spring.In the whole process, simple to operate, the processing performance of loosing core is good, and cost is low, is applicable to multiple middle-size and small-size moulding.
2 back-moving springs of the present invention are memory alloy spring.Because the long-time use of injection machine, die sinking matched moulds constantly, loosing core, back-moving spring is also constantly shrinking diastole in the assembly, be easy to cause metal fatigue or fracture, this alloy spring of memory alloy spring can produce distortion under external force, when external force is removed, under certain temperature condition, can return to the original form, so it has the restore funcitons more than 1,000,000 times, be enough to satisfy for a long time and use.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein, the parts title of Reference numeral correspondence is as follows:
1-boosting-rod, 2-connecting rod, 3-groups of springs, 4-rotating shaft, 5-back-moving spring, 6-postive stop baffle, 7-side core, 8-plastic, 9-screw, the 10-distance of loosing core.
The specific embodiment
Embodiment 1
As shown in Figure 1, present embodiment comprises boosting-rod 1, connecting rod 2, fixing rotating shaft 4 and the assembly of loosing core, connecting rod 2 rotates and is arranged in the rotating shaft 4, the described assembly of loosing core links to each other with the rotating shaft 4 of connecting rod 2, and boosting-rod 1 contacts with connecting rod 2, and the described assembly of loosing core comprises side core 7, back-moving spring 5, postive stop baffle 6 and screw 9, screw 9 links to each other with connecting rod 2, one end of described screw 9 passes postive stop baffle 6, and links to each other with side core 7, and the other end of screw 9 links to each other with connecting rod 2; One end of back-moving spring 5 links to each other with postive stop baffle 6, and screw 9 links to each other with the other end of back-moving spring 5.After injection moulding is finished, and cooling finishes, just begin the demoulding.Injection moulding machine mould open makes boosting-rod 1 move up and the contacting of disengaging and connecting rod 2; Groups of springs 3 under the connecting rod 2 provides sufficient elastic force to act on the connecting rod 2, makes an end of connecting rod 2 do and turn clockwise that the other end is correspondingly done and is rotated counterclockwise; The mobile displacement that drives the assembly of loosing core of connecting rod 2, screw 9 moves down along certain angle, and the side core 7 that links to each other with screw 9 simultaneously is also mobile thereupon; Back-moving spring 5 is stretched, and the postive stop baffle 6 between side core 7 and the connecting rod 2 is limited in the displacement of side core 7 in certain scope, avoid the excessive stretching of back-moving spring 5 and cause the fracture; At this moment, side core 7 breaks away from plastic 8, has finished the action of loosing core.
The injection machine matched moulds makes boosting-rod 1 move down, and boosting-rod 1 contacts with connecting rod 2, and connecting rod 2 is under the active force of boosting-rod 1, and connecting rod 2 stressed ends are done and are rotated counterclockwise, and the other end is done clockwise motion, and the groups of springs 3 under the connecting rod 2 is compressed; Back-moving spring 5 moves up along certain angle fast owing to automatically replying drive screw 9 simultaneously, finishes homing action.
Embodiment 2
As shown in Figure 1, present embodiment comprises also being arranged on connecting rod 2 near the groups of springs 3 of boosting-rod 1 one bottom portions that described groups of springs 3 is made of a plurality of scroll springs on the basis of embodiment 1.Adopt a plurality of scroll springs, can provide stronger power for the rotation of connecting rod 2, make it to finish fast the action of loosing core, improve the production efficiency of injection mold; When the injection machine matched moulds, boosting-rod 1 moves down and acts on connecting rod 2, makes it to be subjected to an impulsive force simultaneously, and Device element has been protected in the impulsive force that produces being cushioned of groups of springs 3 better, has improved the service life of equipment.
Embodiment 3
As shown in Figure 1, present embodiment is on the basis of embodiment 1, and as preferably, described connecting rod 24 rotational angle around the shaft is 10 °～25 °.Connecting rod 2 can be centered by rotating shaft 4, its active force is converted boosting-rod 1 to loose core power, and the angle of rotation can make the more quick of the process of loosing core between 10 °～25 °;
As preferably, described back-moving spring 5 is wrapped on the screw 9, and described back-moving spring 5 is memory alloy spring.Because the long-time use of injection machine, die sinking matched moulds constantly, loosing core, back-moving spring 5 is also constantly shrinking diastole in the assembly, be easy to cause metal fatigue or fracture, this alloy spring of memory alloy spring can produce distortion under external force, when external force is removed, under certain temperature condition, can return to the original form;
As preferably, loose core apart from 10 less than 80 ㎜.The distance 10 of loosing core is oversize, makes mould specification increase thereby can make back-moving spring 5 or side core 7 length increase; The distance 10 of loosing core is too short, can make side core 7 not extract out fully from plastic 8.Be limited to injection machine internal structure layout, the distance of loosing core 10 is limited in below 80 ㎜, and each parts normally carries out in the assembly that can guarantee to loose core.
Claims (4)
1. novel core-pulling device, it is characterized in that: comprise boosting-rod (1), connecting rod (2), fixing rotating shaft (4) and the assembly of loosing core, connecting rod (2) rotates and is arranged in the rotating shaft (4), and the described assembly of loosing core links to each other with rotating shaft (4), and boosting-rod (1) contacts with connecting rod (2); The described assembly of loosing core comprises side core (7), back-moving spring (5), postive stop baffle (6) and screw (9), screw (9) links to each other with connecting rod (2), one end of described screw (9) passes postive stop baffle (6), and link to each other with side core (7), the other end of screw (9) links to each other with connecting rod (2); One end of back-moving spring (5) links to each other with postive stop baffle (6), and screw (9) links to each other with the other end of back-moving spring (5).
2. novel core-pulling device according to claim 1 is characterized in that: also comprise being arranged on connecting rod (2) near the groups of springs (3) of boosting-rod (1) one bottom portion, described groups of springs (3) is made of a plurality of scroll springs.
3. novel core-pulling device according to claim 1, it is characterized in that: described back-moving spring (5) is wrapped on the screw (9), and described back-moving spring (5) is memory alloy spring.
4. according to any described novel core-pulling device of claim 1～4, it is characterized in that: the distance (10) of loosing core is less than 80 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310241063 CN103273626A (en) | 2013-06-18 | 2013-06-18 | Novel core drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310241063 CN103273626A (en) | 2013-06-18 | 2013-06-18 | Novel core drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103273626A true CN103273626A (en) | 2013-09-04 |
Family
ID=49056299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310241063 Pending CN103273626A (en) | 2013-06-18 | 2013-06-18 | Novel core drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103273626A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015313A (en) * | 2014-06-17 | 2014-09-03 | 无锡忻润汽车安全系统有限公司 | Core-pulling mechanism of injection molding mould |
| CN104339587A (en) * | 2014-09-30 | 2015-02-11 | 珀尔曼机电(昆山)有限公司 | Safety ejection mechanism for injection mould |
-
2013
- 2013-06-18 CN CN 201310241063 patent/CN103273626A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015313A (en) * | 2014-06-17 | 2014-09-03 | 无锡忻润汽车安全系统有限公司 | Core-pulling mechanism of injection molding mould |
| CN104339587A (en) * | 2014-09-30 | 2015-02-11 | 珀尔曼机电(昆山)有限公司 | Safety ejection mechanism for injection mould |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4730367B2 (en) | Split stator manufacturing method | |
| KR101821859B1 (en) | Molding tool and method for the production of an optical element | |
| CN101306569B (en) | Mold device and injection molding method | |
| CN103273625A (en) | Core-pulling and demoulding combination device | |
| CN103273626A (en) | Novel core drawing device | |
| WO2008054319A3 (en) | Device at collapsible core, preferably at injection moulding tool for plastic material, silicone, rubber and similar material | |
| CN103302816A (en) | Core-pulling demolding device | |
| CN203357815U (en) | Core-pulling mechanism | |
| CN105472991B (en) | Lollipop molding machine with set of molds | |
| CN102883836B (en) | Device for injection-moulding a part | |
| CN105522696A (en) | Method for quick demoulding and part fetching in injection molding process | |
| CN104416838A (en) | Method for rapidly pulling core | |
| US8246337B2 (en) | Multi-cavity mold | |
| CN208730112U (en) | A kind of plastic mould ejection guiding mechanism | |
| CN208247344U (en) | A kind of encapsulation die for thin wall component | |
| CN207617029U (en) | A kind of injection mold rapidly and efficiently demoulded | |
| CN103448164A (en) | Pin-point gate mould structure | |
| CN104029316A (en) | Mold easy to open for machining dumbbell-shaped vulcanized rubber test piece | |
| CN203437619U (en) | Stationary mould individual ejector mechanism of mould | |
| JP2003324116A (en) | Resin sealing metal mold and resin sealing device | |
| CN202462746U (en) | Demolding device for insulation disk | |
| JP2017516689A (en) | Molding tool for injection molding | |
| CN204820204U (en) | Injection mold shedder | |
| CN219153472U (en) | Demoulding slide block cam mechanism and large-stroke demoulding structure | |
| KR101013093B1 (en) | Sliding type golf ball mold and method for separating golf ball from the mold using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |