CN206703430U - A kind of EVA jetting molds with automatic cutting structure - Google Patents
A kind of EVA jetting molds with automatic cutting structure Download PDFInfo
- Publication number
- CN206703430U CN206703430U CN201720566801.3U CN201720566801U CN206703430U CN 206703430 U CN206703430 U CN 206703430U CN 201720566801 U CN201720566801 U CN 201720566801U CN 206703430 U CN206703430 U CN 206703430U
- Authority
- CN
- China
- Prior art keywords
- material feeding
- flow passage
- mould
- injection flow
- cutting
- 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
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Abstract
It the utility model is related to injection molding technical field, a kind of EVA jetting molds with automatic cutting structure are provided, when being molded after injection moulding, directly product and material handle are broken, automatic cutting while realizing die sinking, material head is small at fracture, is not necessary to trim, and can reduce cost of labor and improve efficiency.Including upper die and lower die, lower mould is provided with forming cavity, forming cavity bottom is provided with material feeding interface, the bottom of the upper mould is provided with material feeding material cutting-off mechanism, the material feeding material cutting-off mechanism narrow wide projection under being, the lower mould are provided with groove that is accommodating and matching the material feeding material cutting-off mechanism, connecting passage are provided between the material feeding interface and groove, injection flow passage is provided with the material feeding material cutting-off mechanism, bottom of the injection flow passage along the material feeding material cutting-off mechanism is extended to outside mould in spoon shape.The entrance of the connecting passage is connected with the outlet of the injection flow passage, forms injection flow passage to the injection canal of forming cavity.
Description
Technical field
Injection molding technical field is the utility model is related to, specially a kind of EVA with automatic cutting structure projects mould
Tool.
Background technology
The shaping of injection mold be typically expect with molten condition by runner inject die cavity, after the completion of shaping, runner and
Product can connect together to form useless material mould is ejected, and hereafter need operating personnel by runner material from product edge
Manually wiped out with scissors at cast gate, be also unsightly also possible to produce damaged products in addition to less efficient inconvenience, at fracture.
Utility model content
The purpose of this utility model is to provide a kind of EVA jetting molds with automatic cutting structure, is being injection moulded
After when being molded, directly by product and material breaking, automatic cutting while realizing die sinking, material head is small at fracture, is not necessary to repair
Cut, cost of labor can be reduced and improve efficiency.
To achieve the above object, the utility model provides following technical scheme：A kind of EVA with automatic cutting structure is penetrated
Go out mould, including upper die and lower die, lower mould is provided with forming cavity, and forming cavity bottom is provided with material feeding interface, and the bottom of the upper mould is set
Narrow wide projection under having material feeding material cutting-off mechanism, the material feeding material cutting-off mechanism to be, the lower mould, which is provided with, houses and matches the note
Expect the groove of material cutting-off mechanism, connecting passage is provided between the material feeding interface and groove, note is provided with the material feeding material cutting-off mechanism
Jet road, bottom of the injection flow passage along the material feeding material cutting-off mechanism are extended to outside mould in spoon shape.The injection flow passage
Longitudinal section is up-narrow and down-wide and dome with overhead kick, is easy to catch material head during die sinking, the entrance of the connecting passage with it is described
The outlet connection of injection flow passage, forms injection flow passage to the injection canal of forming cavity.
Further, the material feeding interface is taper, is more than with the connection end bore of connecting passage away from end, when EVA exists
After being molded in forming cavity, the material of formation is less than diameter the material handle in connecting passage, so as to be easy to break.
Further, the material feeding material cutting-off mechanism is fillet inverted ladder-shaped body.
Further, non-return mechanism is additionally provided with the injection inlet of the injection flow passage, non-return mechanism is connected with penetrating machine, institute
It is front wide and rear narrow non-return projection that non-return mechanism, which is stated, including cross section, and non-return projection is provided with the charging being connected with injection flow passage
Ditch, spacing preiection, in addition to the ball before spacing preiection rear feeding ditch port are provided with ground hopper.The ground hopper is bottle
Neck-shaped, the port being connected with injector is narrower, and ball can block port non-return when material flows back；For the ease of processing, non-return projection
For independent bulk, on mould in corresponding mounting groove, in mould, narrow portion can more bear to note outside mould in its wide portion
The pressure of foaming is penetrated, avoids coming off under outside pressure.
Compared with prior art, the beneficial effects of the utility model are：EVA expanded materials are injected in mould by injector
Foaming afterwards,, can be directly in the presence of mould opening force due to narrow wide structure under charging material cutting-off mechanism when die sinking
The less material head of material feeding interface diameter is broken, material handle caused by injection flow passage is directly separated with products formed, so as to reduce
The process that must also manually separate in the past, improves production efficiency.
Brief description of the drawings
Fig. 1 is the positive structure schematic of the utility model embodiment；
Fig. 2 is the figure structure schematic representation of bowing of the utility model embodiment；
Fig. 3 is the longitudinal section of injection flow passage in the utility model embodiment；
Fig. 4 is the schematic diagram of non-return mechanism in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of EVA jetting molds with automatic cutting structure, including the He of upper mould 1
Lower mould 2, lower mould 2 are provided with forming cavity 21, and the bottom of forming cavity 21 is provided with material feeding interface 22, and the feed end diameter of material feeding interface 22 is more than
Discharge end, tapered, the bottom of the upper mould 1 is provided with material feeding material cutting-off mechanism 3, the material feeding material cutting-off mechanism narrow wide circle under being
Angle inverted ladder-shaped body 31, the lower mould 2 are provided with groove that is accommodating and matching the material feeding material cutting-off mechanism 3, the material feeding interface 22 with
Connecting passage 23 is provided between groove, injection flow passage 32, the longitudinal section of injection flow passage 32 are provided with the material feeding material cutting-off mechanism 31
To be up-narrow and down-wide dome with overhead kick 321, bottom of the injection flow passage 32 along the material feeding material cutting-off mechanism extends in spoon shape
To outside mould.The entrance of the connecting passage 23 is connected with the outlet of the injection flow passage 32, forms injection flow passage to forming cavity
Injection canal；Non-return mechanism 4 is additionally provided with the injection inlet of the injection flow passage 32, non-return mechanism is connected with injector, institute
It is front wide and rear narrow non-return projection 41 that non-return mechanism 4, which is stated, including cross section, and non-return projection 41 is provided with to be connected with injection flow passage 32
Ground hopper 42, spacing preiection 43, in addition to the ball before the rear feeding ditch port of spacing preiection 43 are provided with ground hopper 42
44.The ground hopper is bottleneck shape, and the port being connected with injector is narrower, and ball can block port non-return when material flows back；
For the ease of processing, non-return projection is independent bulk, and on mould in corresponding mounting groove, its wide portion is in mould
In tool, narrow portion can more bear the pressure of foam-injection outside mould, avoid coming off under outside pressure.
Compared with prior art, the beneficial effects of the utility model are：EVA expanded materials are injected in mould by injector
Foaming afterwards,, can be directly in the presence of mould opening force due to narrow wide structure under charging material cutting-off mechanism when die sinking
The less material head of material feeding interface diameter is broken, material handle caused by injection flow passage is directly separated with products formed, reduce with
Toward the process that must also manually separate, production efficiency is improved.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of EVA jetting molds with automatic cutting structure, including upper die and lower die, lower mould are provided with forming cavity, forming cavity
Bottom is provided with material feeding interface, it is characterised in that the bottom of the upper mould is provided with material feeding material cutting-off mechanism, and the material feeding material cutting-off mechanism is
Under narrow wide projection, the lower mould is provided with groove that is accommodating and matching the material feeding material cutting-off mechanism, the material feeding interface with it is recessed
It is provided with connecting passage between groove, is provided with injection flow passage in the material feeding material cutting-off mechanism, the injection flow passage is along the material feeding fracture
The bottom of mechanism is extended to outside mould in spoon shape.
2. the EVA jetting molds according to claim 1 with automatic cutting structure, it is characterised in that the injected current
The longitudinal section in road is up-narrow and down-wide and dome with overhead kick.
3. the EVA jetting molds according to claim 1 with automatic cutting structure, it is characterised in that the material feeding connects
Mouth is taper, is more than with the connection end bore of connecting passage away from end.
4. the EVA jetting molds according to claim 1 with automatic cutting structure, it is characterised in that the material feeding is broken
Expect that mechanism is fillet inverted ladder-shaped body.
5. the EVA jetting molds according to claim 1 with automatic cutting structure, it is characterised in that the injected current
It is additionally provided with non-return mechanism at the injection inlet in road, the non-return mechanism is front wide and rear narrow non-return projection including cross section, non-return
Projection is provided with the ground hopper being connected with injection flow passage, is provided with spacing preiection in ground hopper, the ground hopper is bottleneck shape, is also wrapped
Include the ball before spacing preiection rear feeding ditch port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566801.3U CN206703430U (en) | 2017-05-22 | 2017-05-22 | A kind of EVA jetting molds with automatic cutting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566801.3U CN206703430U (en) | 2017-05-22 | 2017-05-22 | A kind of EVA jetting molds with automatic cutting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206703430U true CN206703430U (en) | 2017-12-05 |
Family
ID=60463759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720566801.3U Expired - Fee Related CN206703430U (en) | 2017-05-22 | 2017-05-22 | A kind of EVA jetting molds with automatic cutting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206703430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732859A (en) * | 2018-12-20 | 2019-05-10 | 福建泉州市嘉隆模具有限公司 | A kind of EVA jetting mold with automatic cutting structure |
-
2017
- 2017-05-22 CN CN201720566801.3U patent/CN206703430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732859A (en) * | 2018-12-20 | 2019-05-10 | 福建泉州市嘉隆模具有限公司 | A kind of EVA jetting mold with automatic cutting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20200522 |