CN204109294U - A kind of injection mold being convenient to the demoulding - Google Patents
A kind of injection mold being convenient to the demoulding Download PDFInfo
- Publication number
- CN204109294U CN204109294U CN201420495989.3U CN201420495989U CN204109294U CN 204109294 U CN204109294 U CN 204109294U CN 201420495989 U CN201420495989 U CN 201420495989U CN 204109294 U CN204109294 U CN 204109294U
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- China
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- plate
- push rod
- die cavity
- core
- thimble
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Abstract
A kind of injection mold being convenient to the demoulding of the utility model, comprise die cavity, core and base plate, space between described die cavity and core forms die cavity, framed plate is provided with bottom described core, push rod needle plate and push rod dial plate is provided with between described framed plate and described base plate, ejector retainner plate and thimble panel is provided with between described push rod dial plate and described framed plate, between described push rod needle plate and push rod dial plate, push rod is installed, described push rod is through described ejector retainner plate, thimble panel, framed plate is connected with described die cavity with core, between described ejector retainner plate and thimble panel, thimble is installed, described thimble is connected with die cavity through described framed plate and core.
Description
Technical field
The utility model relates to a kind of injection mold being convenient to the demoulding.
Background technology
The structure of injection mold generally includes die cavity, core and base plate, the core of mould stretches into product inwall, the die cavity of mould is coated on product outer wall, gap between core and die cavity forms the die cavity of product, ejector retainner plate and thimble panel are set usually between core and base plate, between ejector retainner plate and thimble panel two boards, ejector sleeve are installed, are fed into die cavity by fixed cast gate, the ejection die demoulding under thimble and ejector sleeve directly promote after shaping, the simple handling ease of mould structure.But, when dimension precision requirement is higher, the pushing method that above-mentioned tradition is directly de-by force, mould is easily made to produce deformation, when processing axis hole series products, it is take off by force in die inside thus pull off muscles and bones position that strong dislocation is put, and endoporus axle place size can be caused easily to produce deviation; Thus traditional approach needs mould by the time just can eject after fully cooling, and molding cycle is long.
Based on above-mentioned present situation, there is the problem that demoulding pushing method easily causes deformation of products and molding cycle length in existing injection mold.
Utility model content
Goal of the invention of the present utility model is the limitation solving above-mentioned existing injection moulding grinding tool, provides the injection mold being convenient to the demoulding that a kind of product is not yielding, molding cycle is short.
A kind of injection mold being convenient to the demoulding of the utility model, comprise die cavity, core and base plate, space between described die cavity and core forms die cavity, framed plate is provided with bottom described core, push rod needle plate and push rod dial plate is provided with between described framed plate and described base plate, ejector retainner plate and thimble panel is provided with between described push rod dial plate and described framed plate, between described push rod needle plate and push rod dial plate, push rod is installed, described push rod is through described ejector retainner plate, thimble panel, framed plate is connected with described die cavity with core, between described ejector retainner plate and thimble panel, thimble is installed, described thimble is connected with die cavity through described framed plate and core.
After adopting above structure, the utility model compared with prior art, has the following advantages:
The utility model is on the basis of traditional ejector retainner plate and thimble panel two boards, add push rod needle plate and push rod dial plate two boards, between described push rod needle plate and push rod dial plate, push rod is installed, reach the effect that thimble and push rod can be released simultaneously, than the scheme only using ejector sleeve to release product in prior art, be not easy because pull off muscles and bones position inner strong the taking off of die, make product not easily deformation, product solidify rear temperature drop to eject temperature can die sinking eject, greatly shorten molding cycle, improve the quality of products, cost-saving.Use that a kind of injection mold demoulding mould being convenient to the demoulding of the utility model is not yielding, molding cycle is short.
As improvement, install between described ejector retainner plate and thimble panel and water lancet and cast gate reset pin, the described lancet that waters leads to die cavity through described framed plate and core, described cast gate reset pin is fixedly connected with described base plate through push rod needle plate and push rod dial plate, described cast gate reset pin and described cast gate coaxial needle are fixedly connected, and described cast gate reset pin and described connecing of lancet of watering meet port to be equipped with step.Described cast gate reset pin is connected with the described lancet that waters, can utilize base plate by cast gate reset pin promote described in water lancet.Described step can be used for spacing.
As improvement, described ejector retainner plate is provided with spring groove, back-moving spring is provided with in described spring groove, described thimble panel has stopper slot, the described lancet that waters passes from the back-moving spring of spring groove, described cast gate reset pin passes from described stopper slot, and described step is arranged in described stopper slot.Back-moving spring described in when charging is subject to step extruding and produces deformation, utilizes the screen resilience of back-moving spring that step is retreated when the demoulding, described waters lancet and product is separated from each other automatically.Original mould is directly connected with product due to cast gate, and material handle is stayed in runner and cast gate, eject rear cast gate and product want employment work point from.After making above-mentioned improvement, back-moving spring makes to water lancet and is automatically separated with product, can not stay in runner and cast gate by material handle, reduce the operation of later separation cast gate.
As improvement, be provided with pad between described step and described back-moving spring, the external diameter of described pad is greater than the external diameter of described back-moving spring.Be convenient to install and fixing spring.
As improvement, mounting limit post on described push rod needle plate, described limited post is through ejector retainner plate and thimble panel.During the demoulding, when push rod is pushed to certain position by described push rod needle plate and push rod dial plate, described limited post comes on described framed plate, make described push rod needle plate and push rod dial plate cannot continue again to release, described push rod stops ejection die, and described thimble will continue ejection die, mould will be facilitated to come off.Structure is simple, arranges rationally.
After detailed description in conjunction with detailed description of the invention of the present utility model, advantage of the present utility model will become clearly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Shown in figure 1, die cavity, 2, core, 3, framed plate, 4, limited post, 5, ejector retainner plate, 6, thimble panel, 7, push rod needle plate, 8, push rod dial plate, 9, base plate, 10, push rod, 11, cast gate reset pin, 12, pad, 13, back-moving spring, 14, water lancet, 15, thimble, 16, die cavity.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of injection mold being convenient to the demoulding of the utility model as shown in Figure 1, comprise die cavity 1, core 2 and base plate 9, space between described die cavity 1 and core 2 forms die cavity 16, framed plate 3 is provided with bottom described core 2, push rod needle plate 7 and push rod dial plate 8 is provided with between described framed plate 3 and described base plate 9, ejector retainner plate 5 and thimble panel 6 is provided with between described push rod dial plate 8 and described framed plate 3, between described push rod needle plate 7 and push rod dial plate 8, push rod 10 is installed, described push rod 10 is through described ejector retainner plate 5, thimble panel 6, framed plate 3 is connected with described die cavity 16 with core 2, between described ejector retainner plate 5 and thimble panel 6, thimble 15 is installed, described thimble 15 is connected with die cavity 16 through described framed plate 3 and core 2.Install between described ejector retainner plate 5 and thimble panel 6 and water lancet 14 and cast gate reset pin 11, the described lancet 14 that waters leads to die cavity 16 through described framed plate 3 and core 2, described cast gate reset pin 11 is fixedly connected with described base plate 9 through push rod needle plate 7 and push rod dial plate 8, described cast gate reset pin 11 is coaxially fixedly connected with the described lancet 14 that waters, and described cast gate reset pin 11 meets port to be equipped with step with described connecing of lancet 14 of watering.Described ejector retainner plate 5 is provided with spring groove, back-moving spring 13 is provided with in described spring groove, described thimble panel 6 has stopper slot, the described lancet 14 that waters passes from the back-moving spring 13 of spring groove, described cast gate reset pin 11 passes from described stopper slot, and described step is arranged in described stopper slot.Be provided with pad 12 between described step and described back-moving spring 13, the external diameter of described pad 12 is greater than the external diameter of described back-moving spring 13.Mounting limit post 4 on described push rod needle plate 7, described limited post 4 is through ejector retainner plate 5 and thimble panel 6.
More specifically, reserved 3-5mm gap in the movement direction between the boss of cast gate reset pin 11 described in the utility model and described spacing cell wall.When described cast gate reset pin 11 is reset the elastic force effect of spring 13, described cast gate reset pin 11 has fully and reasonably retrogressing is moved in space.
More specifically, limited post 4 described in the utility model adopts screw to be connected with push rod needle plate 7.
Launch with the detailed description of the invention of the axle hole demoulding with regard to the utility model below, the product of the utility model injection moulding demoulding can be but be not limited to above form.
Space between described die cavity 1 and core 2 forms die cavity 16, described cast gate reset pin 11 promotes described to water lancet 14, the described back-moving spring 13 described in step extruding watering lancet 14 end, the described lancet 14 that waters is connected with described die cavity 16, is injected in die cavity 1 by the charging of melting by cast gate; After completing injection moulding, the described lancet 14 that waters retreats under the effect of described back-moving spring 13, until the step of described cast gate reset pin 11 touches the bottom of described stopper slot, waters lancet 14 and retreats 3-5mm.The described lancet 14 that waters is separated automatically with described die cavity 16.
Charging cooling forming in die cavity 1 of described melting, after product drops to and ejects temperature, described ejector retainner plate 5 and thimble panel 6 promote thimble 15, and described push rod needle plate 7 and push rod dial plate 8 promote push rod 10.Described thimble 15 and the end of push rod 10 contact with each other with the boss of wheel shaft central authorities and axle hole respectively.
As shown in Figure 1, if the disengaging distance of wheel shaft is A, the distance of limited post 4 top and framed plate 3 is B, and B is slightly larger than A.When being B by thimble 15 and push rod 10 pushing distance, product has departed from described core 2 completely.Limited post 4 limits described push rod 10 and releases, and described thimble 15 continues to eject pushing distance when being A, model Automatic-falling.
Product is ejected under the effect of described thimble 15 and push rod 10, and described product and core 2 are separated from each other, and both act on simultaneously and increase active area, and described push rod 10 end coordinates with axle hole and guides, and decreases product, because of local pressure, deformation occurs.Until described limited post 4 touches described framed plate 3, make described push rod needle plate 7 and push rod dial plate 8 cannot continue again to release, and ejector retainner plate 5 and thimble panel 6 continue to release ejecting product until product comes off.Lancet 14 is watered in cast gate disengaging.
Further, described water in the cast gate of lancet 14 end from product distance more close to gate channel narrower, expect that when separation of products handle can drop under gravity naturally.
The utility model adopts four pieces of ejecting push plate products, and product is not yielding; Reach and eject temperature and get final product ejecting product, molding cycle is short; Water lancet 14 to automatically reset and to be automatically separated with product, can not stay in runner and cast gate by material handle, reduce the operation of later separation cast gate.Can reduce costs compared to existing technology, production efficiency is higher.
Below only just most preferred embodiment of the present utility model is described, but can not be interpreted as it is limitations on claims.The utility model is not limited only to above embodiment, and all various changes done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (5)
1. be convenient to the injection mold of the demoulding for one kind, comprise die cavity (1), core (2) and base plate (9), space between described die cavity (1) and core (2) forms die cavity (16), described core (2) bottom is provided with framed plate (3), it is characterized in that: between described framed plate (3) and described base plate (9), be provided with push rod needle plate (7) and push rod dial plate (8), ejector retainner plate (5) and thimble panel (6) is provided with between described push rod dial plate (8) and described framed plate (3), between described push rod needle plate (7) and push rod dial plate (8), push rod (10) is installed, described push rod (10) is through described ejector retainner plate (5), thimble panel (6), framed plate (3) is connected with described die cavity (16) with core (2), between described ejector retainner plate (5) and thimble panel (6), thimble (15) is installed, described thimble (15) is connected with die cavity (16) with core (2) through described framed plate (3).
2. a kind of injection mold being convenient to the demoulding according to claim 1, it is characterized in that: install between described ejector retainner plate (5) and thimble panel (6) and water lancet (14) and cast gate reset pin (11), the described lancet (14) that waters leads to die cavity (16) through described framed plate (3) and core (2), described cast gate reset pin (11) is fixedly connected with described base plate (9) with push rod dial plate (8) through push rod needle plate (7), described cast gate reset pin (11) and the described lancet (14) that waters coaxially are fixedly connected, described cast gate reset pin (11) and described connecing of lancet (14) of watering meet port to be equipped with step.
3. a kind of injection mold being convenient to the demoulding according to claim 2, it is characterized in that: described ejector retainner plate (5) is provided with spring groove, back-moving spring (13) is provided with in described spring groove, described thimble panel (6) has stopper slot, the described lancet (14) that waters passes from the back-moving spring (13) of spring groove, described cast gate reset pin (11) passes from described stopper slot, and described step is arranged in described stopper slot.
4. a kind of injection mold being convenient to the demoulding according to claim 3, it is characterized in that: be provided with pad (12) between described step and described back-moving spring (13), the external diameter of described pad (12) is greater than the external diameter of described back-moving spring (13).
5. a kind of injection mold being convenient to the demoulding according to claim 1, is characterized in that: the upper mounting limit post (4) of described push rod needle plate (7), described limited post (4) is through ejector retainner plate (5) and thimble panel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495989.3U CN204109294U (en) | 2014-08-29 | 2014-08-29 | A kind of injection mold being convenient to the demoulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495989.3U CN204109294U (en) | 2014-08-29 | 2014-08-29 | A kind of injection mold being convenient to the demoulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204109294U true CN204109294U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420495989.3U Expired - Fee Related CN204109294U (en) | 2014-08-29 | 2014-08-29 | A kind of injection mold being convenient to the demoulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204109294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406054A (en) * | 2019-08-29 | 2019-11-05 | 创维集团智能装备有限公司 | A kind of injection mold and its release method |
-
2014
- 2014-08-29 CN CN201420495989.3U patent/CN204109294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406054A (en) * | 2019-08-29 | 2019-11-05 | 创维集团智能装备有限公司 | A kind of injection mold and its release method |
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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: 20150121 Termination date: 20150829 |
|
| EXPY | Termination of patent right or utility model |