CN105383014A - Core pulling mechanism device for idler wheel limiting spring for injection molding - Google Patents
Core pulling mechanism device for idler wheel limiting spring for injection molding Download PDFInfo
- Publication number
- CN105383014A CN105383014A CN201510820212.9A CN201510820212A CN105383014A CN 105383014 A CN105383014 A CN 105383014A CN 201510820212 A CN201510820212 A CN 201510820212A CN 105383014 A CN105383014 A CN 105383014A
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- CN
- China
- Prior art keywords
- core
- dynamic model
- ejector pin
- spring
- pulling mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a core pulling mechanism device for an idler wheel limiting spring for injection molding. The core pulling mechanism device is arranged on a movable die and a static die of an injection molding machine and comprises an L-shaped support fixedly connected to the movable die and pointing to the static die, an idler wheel hinged to the support, a movable core, the spring and a core. The spring is connected to the movable core and the axial direction of the spring is parallel to that of the movable core. In the die combination process, the core stretches into a cavity, the spring is in the pressed state, the idler wheel limits the movable core, when the idler wheel is moved away, the spring is released to drive the movable core to retreat from the cavity; and the core is arranged outside the movable die, the drive end of the core is connected with the movable die through a time-delay mechanism, and the core pulling mechanism device has the technical effects that the mounting space is saved, and no other power mechanism is needed.
Description
Technical field
The present invention relates to injection molding technology field.
Background technology
In injection moulding production process, when the perpendicular direction of product and die sinking direction has groove or hole, injection mold must arrange moving core, when mould matched moulds, moving core inserts in die cavity, and when mould die sinking, moving core exits die cavity.If groove and hole less, more shallow, the enclasping force that product produces core in condensation process is little, utilizes the mechanical pulled core structure of the setting on mould just can complete action of loosing core when die sinking.
The travel mechanism of existing moving core is by hydraulic core_pulling device, to loose core the compositions such as device seat and shaft coupling, the piston rod of hydraulic core_pulling device is fixedly connected with by the moving core that shaft coupling and die cavity are built-in, and the piston rod of hydraulic core_pulling device is flexible makes moving core move axially in die cavity.The defect of this travel mechanism is: need on injection machine, arrange extra actuating unit (hydraulic core_pulling device), while expending the energy, add the space shared by injection machine, cannot be applicable to the factory that some hall space are less.
Summary of the invention
The invention is intended to provide a kind of utilizes open/close mould masterpiece for mobile power and the less injection moulding roller limit spring core-pulling mechanism of installing space is arranged.
Injection moulding in this programme roller limit spring core-pulling mechanism is arranged, and on the dynamic model being arranged at injection machine and quiet mould: comprise L bracket, the galianconism portion of this support is fixed on dynamic model, dynamic model stretches out and parallel with quiet mould in long-armed portion; This galianconism portion end is hinged with roller; Be provided with moving core in the gathering sill of quiet mould, this moving core upper end and idler wheel surface face offset, and moving core described in core is connected with spring, and it is axially parallel with the axis of moving core; Described dynamic model and the injection molding die cavity of the involutory rear formation of quiet mould, during matched moulds, described moving core stretches in die cavity, described spring is in impaction state, described roller limits the position of moving core, and when removing this roller, spring is decontroled and driven moving core to exit die cavity; Described core is located at outside described dynamic model, and the drive end of this core is connected by time-delay mechanism with dynamic model.
Beneficial effect: the present invention utilizes the elastic force of spring as the power of the movement of moving core, and with roller as position-limit mechanism.During matched moulds, roller limits moving core, forces the spring be attached thereto be in impaction state and compress moving core, makes it can not move in the process of injection moulding, ensure that the quality of product.At the die sinking initial stage, because support is fixedly connected on dynamic model, be connected to roller on support along with dynamic model and remove restraining position together, moving core is decontroled, and can be freely movable, and core exits die cavity under spring force, completes action of loosing core.If when core is backed out, moving core is appointed and is not exited die cavity completely, and moving core may destroy product under mould opening force impact.Therefore, the drive end of core is connected by time-delay mechanism with dynamic model, before dynamic model driving core starts to exit die cavity, the stroke of dynamic model is configured to ensure that moving core exits die cavity completely, afterwards, both move along die sinking direction together, until complete die sinking.On the quiet mould being all mounted in die casting machine due to whole mechanism and dynamic model, saved installing space, this spring force that utilizes as the design of power of loosing core, without the need to arranging actuating unit in addition.
Further, one end that dynamic model points to quiet mould is separable fixed head, and during the die sinking initial stage, fixed head withstands product and do not move with dynamic model, and after moving core exits die cavity completely, liftout plate moves along die sinking direction with dynamic model.Like this, before moving core exits die cavity completely, die cavity keeps closing thus the shape having maintained the position of product does not change, and the action that can make to loose core is more smooth and easy, ensure that the quality of product.
Further, be provided with ejector pin after fixed head, dynamic model has the ejector pin chamber that can hold ejector pin, the part that ejector pin is in chamber is provided with the shaft shoulder, is provided with corresponding Access Division in ejector pin chamber; Spring is connected between ejector pin afterbody and ejector pin chamber medial surface, during matched moulds, spring is in impaction state, and the end that ejects of ejector pin is in hole, due to the bounce of spring, ejector pin withstands on fixed head, after die sinking, spring is decontroled gradually along with the movement of dynamic model, but keeps ejector pin to withstand fixed head, until after the stroke of dynamic model ensures that moving core exits die cavity completely, on dynamic model, Access Division is blocked the shaft shoulder on ejector pin and drives ejector pin move together thus decontrol fixed head.Because the separation of fixed head and hold-down mechanism are arranged in dynamic model completely, compact conformation, saves installing space further.
Further, dynamic model is divided into two parts and is bolted link, and ejector pin chamber through ejector pin chamber, thus is divided into two by die joint.During installation, spring and ejector pin first can be placed in the ejector pin chamber inner position opened, and then two parts of dynamic model are fixed together, and install more convenient.
Further, dynamic model is hinged with drive rod, drive rod is hinged with follower lever on one end of fixed head, and simultaneously follower lever is hinged on quiet mould towards a section of quiet mould.During matched moulds, drive rod and follower lever form an angle, and when dynamic model walks to ejector pin relieving fixed head, drive rod can drive follower lever and then drive fixed head to move.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention roller limit spring core-pulling mechanism.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: dynamic model 1, L bracket 2, roller 3, moving core 4, quiet mould 5, core 6, fixed head 7, ejector pin 8, follower lever 9, drive rod 10.
Embodiment roller limit spring core-pulling mechanism is substantially as shown in Figure 1:
Roller limit spring core-pulling mechanism, be arranged on injection machine, comprise dynamic model 1 and quiet mould 5, dynamic model 1 is fixedly connected with the L bracket 2 of the quiet mould 5 of sensing, this support is hinged with roller 3 close to one end of quiet mould 5, on quiet mould 5, the position relative with roller 3 has gathering sill, and moving core 4 is placed in this gathering sill.Fixed head 7 is located between dynamic model 1 and quiet mould 5, and core 6 is in the below of quiet mould 5 and dynamic model 1, and the die joint of its die joint and fixed head 7 also has the depressed part of quiet mould 5 to form die cavity.Moving core 4 stretches in die cavity by the perforate on gathering sill bottom surface in one end downwards, and moving core 4 top is also provided with the shaft shoulder, is furnished with spring between the shaft shoulder and gathering sill bottom surface.Have the ejector pin chamber that can hold ejector pin 8 in dynamic model 1, ejector pin 8 can stretch out ejector pin chamber by dynamic model 1 towards the perforate in the one side of fixed head 7 towards one end of fixed head 7; Ejector pin 8 part stayed in ejector pin chamber is the shaft shoulder, and the edge of perforate is the Access Division coordinated with it, and ejector pin 8 is stayed between one end in chamber and side, ejector pin 8 chamber and is connected with spring.Dynamic model 1 is bolted to connection by two, left and right and forms (left and right portion take A as line of demarcation).
The inner side of dynamic model 1 is provided with hook portion, and core 6 is also provided with hook portion on the end, one end of dynamic model 1, and its particular location is in the hook portion of dynamic model 1 along on the path of die sinking direction movement.Dynamic model 1 is hinged with drive rod 10, drive rod 10 is hinged with follower lever 9 on one end of fixed head 7, and simultaneously follower lever 9 is hinged on quiet mould 5 towards a section of quiet mould 5, and during matched moulds state, drive rod 10 and follower lever 9 form an angle.
Operation principle: when the present embodiment is in matched moulds state, roller 3 limits the position that moving core 4 moves upward, force and push down with the shaft shoulder on moving core 4 spring be attached thereto, it is made to be in impaction state, simultaneously, moving core 4 is also compacted, makes it can not move in the process of injection moulding, ensure that the quality of product.The die sinking initial stage, because " L " type support 2 is fixedly connected on dynamic model 1, be hinged on roller 3 on this support also along with dynamic model 1 removes restraining position together, moving core 4 is decontroled, and can be freely movable, core exits die cavity under spring force, completes action of loosing core, and at this moment the hook portion of dynamic model 1 not yet contacts with the hook portion on core 6.In this process, ejector pin 8 withstands on fixed head 7 under spring force always, and force fixed head 7 to compress quiet mould 5, die cavity is in closed state always, and product not easily moves or deformation, ensure that action of loosing core can complete swimmingly.Along with the continuation of dynamic model 1 is moved, the hook portion of dynamic model 1 contacts with the hook portion on core 6 and drives core 6 to move along die sinking direction together; Meanwhile, the wedging position clamping on the edge of ejector pin 8 chamber perforate and ejector pin 8, and drive ejector pin 8 to move, thus decontrol fixed head 7, makes fixed head 7 can be movable.Along with dynamic model 1 continues mobile, hinged drive rod 10 on it drives follower lever 9 to rotate together to level, and drive rod 10 can drive follower lever 9 and then drive fixed head 7 to move together, finally completes die sinking.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. injection moulding roller limit spring core-pulling mechanism, on the dynamic model being arranged at injection machine and quiet mould, it is characterized in that, comprise L bracket, the galianconism portion of this support is fixed on dynamic model, and dynamic model stretches out and parallel with quiet mould in long-armed portion; This galianconism portion end is hinged with roller; Be provided with moving core in the gathering sill of quiet mould, this moving core upper end and idler wheel surface face offset, and moving core described in core is connected with spring, and it is axially parallel with the axis of moving core; Described dynamic model and the injection molding die cavity of the involutory rear formation of quiet mould, during matched moulds, described moving core stretches in die cavity, described spring is in impaction state, described roller limits the position of moving core, and when removing this roller, spring is decontroled and driven moving core to exit die cavity; Described core is located at outside described dynamic model, and the drive end of this core is connected by time-delay mechanism with dynamic model.
2. injection moulding roller limit spring core-pulling mechanism according to claim 1, is characterized in that: described dynamic model comprises drive division and fixed head, wherein near one end fixed head of described quiet mould.
3. injection moulding roller limit spring core-pulling mechanism according to claim 2, it is characterized in that: after described fixed head, be provided with ejector pin, described dynamic model has the ejector pin chamber that can hold this ejector pin, the part that ejector pin is in chamber is provided with the shaft shoulder, is provided with corresponding Access Division in ejector pin chamber; Spring is connected between ejector pin afterbody and ejector pin chamber inner face.
4. injection moulding roller limit spring core-pulling mechanism according to claim 3, it is characterized in that: the drive part of described dynamic model is two parts and is bolted link, this ejector pin chamber through described ejector pin chamber, thus is divided into two by its die joint.
5. injection moulding roller limit spring core-pulling mechanism according to claim 4, it is characterized in that: described dynamic model is hinged with drive rod, this drive rod is hinged with follower lever on one end of described fixed head, this follower lever is hinged on this quiet mould towards a section of described quiet mould simultaneously, the Axis Cross of described drive rod and follower lever during matched moulds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820212.9A CN105383014A (en) | 2015-11-24 | 2015-11-24 | Core pulling mechanism device for idler wheel limiting spring for injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820212.9A CN105383014A (en) | 2015-11-24 | 2015-11-24 | Core pulling mechanism device for idler wheel limiting spring for injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105383014A true CN105383014A (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510820212.9A Pending CN105383014A (en) | 2015-11-24 | 2015-11-24 | Core pulling mechanism device for idler wheel limiting spring for injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105383014A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583684A (en) * | 2016-12-30 | 2017-04-26 | 宁波环亚机械制造有限公司 | Cross loose core die-casting mold |
| CN109130105A (en) * | 2018-11-23 | 2019-01-04 | 常州大学 | A kind of rod spring side core-pulling mechanism |
| CN109203384A (en) * | 2018-11-23 | 2019-01-15 | 常州大学 | A kind of lever side core-pulling mechanism |
-
2015
- 2015-11-24 CN CN201510820212.9A patent/CN105383014A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583684A (en) * | 2016-12-30 | 2017-04-26 | 宁波环亚机械制造有限公司 | Cross loose core die-casting mold |
| CN106583684B (en) * | 2016-12-30 | 2018-08-14 | 宁波环亚机械制造有限公司 | Cross core-loosing compression mod |
| CN109130105A (en) * | 2018-11-23 | 2019-01-04 | 常州大学 | A kind of rod spring side core-pulling mechanism |
| CN109203384A (en) * | 2018-11-23 | 2019-01-15 | 常州大学 | A kind of lever side core-pulling mechanism |
| CN109203384B (en) * | 2018-11-23 | 2020-11-24 | 常州大学 | Lever side core-pulling mechanism |
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Application publication date: 20160309 |