CN108127874A - One kind is from dynamic circuit breaker cast gate injection mold - Google Patents
One kind is from dynamic circuit breaker cast gate injection mold Download PDFInfo
- Publication number
- CN108127874A CN108127874A CN201810033518.3A CN201810033518A CN108127874A CN 108127874 A CN108127874 A CN 108127874A CN 201810033518 A CN201810033518 A CN 201810033518A CN 108127874 A CN108127874 A CN 108127874A
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- sprue
- plate
- dynamic model
- needle plate
- nail
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- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 230000003111 delayed effect Effects 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 23
- 230000008439 repair process Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 19
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 241001079814 Symphyotrichum pilosum Species 0.000 description 3
- 235000004224 Typha angustifolia Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention disclose a kind of from dynamic circuit breaker cast gate injection mold, and including dynamic model, cover half, sprue mold insert, sprue puller, delay is followed closely, needle plate and ejector retainner plate, the sprue mold insert are arranged in dynamic model, inside be provided with side gate.The side of the lower part of side gate to dynamic model cavity surface is recessed to form back-off.Sprue mold insert is inserted on the top of the sprue puller, and its underpart is located in needle plate, and sprue puller is slidably connected respectively with sprue mold insert and needle plate.Ejector retainner plate is located at the lower section of needle plate, is fixedly linked with needle plate.The stepped hole for placing delay nail is provided on ejector retainner plate, the ailhead for the nail that is delayed is located in the epimere of stepped hole, can be moved along its axis relative to ejector retainner plate., the lower end in contact of ailhead and sprue puller opposite with the sprue puller forward direction above it is followed closely in the delay.Injection mold structure optimization disclosed by the invention, it is highly practical, it saves and falls to repair the production process of material handle, ensure product quality, high yield rate, utilization is cost-effective, improves production efficiency.
Description
Technical field
The present invention relates to automobile injection mold technologies, and in particular to a kind of from dynamic circuit breaker cast gate injection mold.
Background technology
For the auto parts and components of some injection moldings, the material being cooled and shaped at product piece after molding and cast gate is usually
It all links together, when product piece is taken out out of dynamic model, together with material after taking-up together, needs manually repairing to be fallen material.
Manual repair expects that time-consuming and laborious of high cost, efficiency is low, the technology of operating personnel is required high, and improper meeting is fallen in repairing to material
Finished parts is caused to damage, it is difficult to repair.The molding part of part injection is made of material NAFI (P/E-NF20), material NAFI
(P/E-NF20) there is good brittleness, deform under external force to a certain extent, it may occur that fracture, according to material NAFI
(P/E-NF20) have the characteristics that good brittleness this, can be when product piece be from mould ejection, by product piece and material pushing up
Ejection so as to disengage by force, saves repairing material this process, part by one-step molding reduces labour cost in two times during going out
With cost-effective.
Invention content
In view of the above shortcomings of the prior art, it is a kind of from dynamic circuit breaker cast gate injection mold, solution it is an object of the invention to propose
Certainly manual repair's material is the problem of time-consuming and laborious, of high cost, production efficiency and yield rate are low, and technical operation requirement is high.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
One kind is from dynamic circuit breaker cast gate injection mold, including dynamic model, cover half, sprue mold insert, sprue puller, delay nail, needle plate and top
Needle plate, the sprue mold insert are arranged in dynamic model, inside be provided with side gate.The lower part of side gate is to the side of dynamic model cavity surface
Recess forms back-off.Sprue mold insert is inserted on the top of the sprue puller, and its underpart is located in needle plate, and sprue puller is inlayed respectively with cast gate
Part and needle plate are slidably connected.Ejector retainner plate is located at the lower section of needle plate, is fixedly linked with needle plate.It is provided on ejector retainner plate and places delay nail
Stepped hole, the ailhead for the nail that is delayed are located in the epimere of stepped hole, can be moved along its axis relative to ejector retainner plate.It is described delay nail with
Sprue puller forward direction above it is opposite, the lower end in contact of ailhead and sprue puller.
Preferably, bottom plate is provided with below ejector retainner plate, the bottom of ejector retainner plate is stretched out in the lower end for the nail that is delayed, and can withstand on bottom plate
Upper surface, the part that delay nail stretches out ejector retainner plate bottom is provided with clamp spring.
Preferably, multiple mandrils are provided with above the needle plate, dynamic model is inserted into the upper end of each mandril, extended dynamic model
Cavity surface, lower end are fixedly linked with needle plate.
Preferably, the cover half is located at the top of dynamic model, after dynamic model is molded with cover half, forms injection die cavities between the two,
Injection die cavities be connected with side gate part height h be 1mm.
Preferably, be delayed nail ailhead and stepped hole hole shoulder grafting touch when, between the top of ailhead and ejector retainner plate upper surface
Height for delay distance H, the distance that is delayed H be 8mm~12mm.
Preferably, guide sleeve is cased in the middle part of the sprue puller, the guide sleeve is installed on by fixed block on dynamic model.
Preferably, the back-off amount L of the back-off is 0.7mm.
Preferably, the upper end of the sprue puller is intermediate taper round end structure high, edge is low.
By using above-mentioned technical proposal, the method have the benefit that：Have on the inside of the sprue mold insert of the present invention
Back-off, product piece are first ejected out of dynamic model, and material is made after out of sprue mold insert, and delay nail realizes product piece and material in two times
Ejection is, it can be achieved that the separation with product piece is saved the process that manual repair expects handle, product piece one-pass molding reduces artificial by material
Expense, it is cost-effective, improve production efficiency.The back-off of side gate ensures product piece in ejection, and the strong de- nothing of product piece is pulled
And deformation, ensure that presentation quality ensures that mould structure is rationally reliable again.
Description of the drawings
Fig. 1 is a kind of principle schematic diagram from dynamic circuit breaker cast gate injection mold of the invention.
Fig. 2 is the partial enlarged view of structure diagram part A in Fig. 1.
Fig. 3 is the partial enlarged view of structure diagram part B in Fig. 1.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
It is a kind of from dynamic circuit breaker cast gate injection mold with reference to Fig. 1 to Fig. 3, including dynamic model, cover half, sprue mold insert 1, sprue puller 2,
Delay nail 3, needle plate 4 and ejector retainner plate 5, the sprue mold insert 1 are fixedly mounted in dynamic model, and the inside of sprue mold insert 1 is provided with side and pours
Mouth 11.The cover half is located at the top of dynamic model, and dynamic model is described with after cover half molding, forming injection die cavities between dynamic model and cover half
Injection die cavities are communicated with the top of the side gate 11 of sprue mold insert 1.When being molded, hot fluid is entered by side gate 11 to be molded
Cavity, after cooling, the hot fluid in the product piece of the inside of injection die cavities formation fragile material, side gate 11 is cooled into expecting
.Injection die cavities be connected with side gate part height h for 1mm, i.e., product piece is the thickness of the part of junction with material
1mm.The side of the lower part of side gate 11 to dynamic model cavity surface is recessed to form back-off 12, and the back-off amount L of the back-off 12 is
0.7mm is molded the top of material handle formed after the completion and is connected with product piece, and its underpart is stuck in the inside of side gate 11, without outer
It is difficult to deviate from out of side gate 11 under power effect.
The top of the sprue puller 2 is inserted into sprue mold insert 1, and the upper end can be stretched out by the bottom of side gate 11, sprue puller 2
Lower part be located in needle plate 4, the upper and lower ends of sprue puller 2 are slidably connected respectively with sprue mold insert 1 and needle plate 4, under sprue puller 2
Hold the bottom of extended needle plate 4.The middle part of the sprue puller 2 is cased with guide sleeve 41, and the guide sleeve 13 is installed by fixed block 6
In on dynamic model, guide sleeve 13 plays guiding role to sprue puller 2, avoids the strut stability when being pressurized of sprue puller 2.It is described to draw material
The upper end of bar 2 is intermediate taper round end structure high, edge is low, and when being molded, the taper rounded portions of sprue puller 2 are located at
Inside the mounting hole of sprue mold insert 1, the outside cooling and shaping that hot fluid enters the taper rounded portions of sprue puller 2 wrap up it,
It is fallen when can prevent material ejection interior from side gate 11.
Ejector retainner plate 5 is located at the lower section of needle plate 4 and is fixedly linked together with needle plate 4, and the lower section of ejector retainner plate 5 is provided with bottom plate
7, bottom plate 7 is fixedly linked with dynamic model.The ejector retainner plate 5 is connect by ejecting mechanism with bottom plate 7 below, and ejecting mechanism can drive
Dynamic ejector retainner plate 5 and needle plate 4 are together along the axial movement of sprue puller 2.The stepped hole 8 for placing delay nail 3, institute are provided on ejector retainner plate 4
Stepped hole 8 is stated as second order stepped hole, the diameter of epimere is more than the diameter of hypomere, and the delay nail 3 is located in stepped hole 8,
Ailhead 31 is located in the epimere of stepped hole 8, and the main part of the nail rod 32 of delay nail 3 is located in the hypomere of stepped hole 8, delay nail
3 can move along its axis relative to ejector retainner plate 5.When the ailhead of delay nail 3 is touched with the hole shoulder grafting of stepped hole 8, the top of ailhead 31
Height between 5 upper surface of ejector retainner plate is delay distance H, and the distance that is delayed H is 8mm~12mm, and the preferred value of the distance that is delayed H is
10mm。
The bottom of ejector retainner plate 5 is stretched out in 32 lower end of nail rod of delay nail 3, can withstand on the upper surface of bottom plate 7, under the nail rod 32
The part that 5 bottom of ejector retainner plate is stretched out at end is equipped with clamp spring 33, when withstanding on the upper surface of bottom plate 7 in the lower end of delay nail 3, clamp spring 33
It can prevent delay nail 3 from being headed into completely in ejector retainner plate 5, the ailhead 31 of the control delay of clamp spring 33 nail 3 is in the epimere of stepped hole 8
Displacement distance.The delay nail 3 and the sprue puller 2 above it are positive opposite, the lower end of the ailhead 31 and sprue puller 2 of delay nail 3
Contact, when needing material being ejected out of side gate 11,3 driving sprue puller 2 of delay nail is moved up relative to sprue mold insert 1,
It will expect being ejected out of side gate 11 back-off, detached with sprue mold insert 1.The top of the needle plate 5 is provided with flat with sprue puller 2
Capable multiple mandrils 9, the upper end of each mandril 9 are inserted into dynamic model, the cavity surface of the extended dynamic model in top of mandril 9, and lower end is equal
It is fixedly linked with needle plate 4, in the operating condition, needle plate 4 can drive all mandrils 9 to be moved upwards relative to dynamic model, the top of mandril 9
The cavity surface of dynamic model is stretched out at end, and product piece is ejected out of dynamic model.
A kind of course of work from dynamic circuit breaker cast gate injection mold of the invention includes the following steps：Step 1, cover half is to dynamic model
It is mobile to complete molding, after the completion of molding, injection die cavities, injection die cavities and pouring in dynamic model are formed between cover half and dynamic model
The side gate 11 of mouth mold insert 1 communicates, and pass through the heated fluid injection into injection die cavities of side gate 11.After injection molding, injection molding
The hot fluid of intracavitary is cooled into product piece, and the hot fluid in side gate 11 is cooled into material handle, in the whole process of step 1
In, the lower end of delay nail 3 withstands on the upper surface of bottom plate 7, and the ailhead 31 of delay nail 3 is located at the top of stepped hole 8,31 bottom of ailhead
Distance at 8 hole shoulder of range step hole is delay distance H, H=10mm, and under the effect of gravity, lower end is withstood on the sprue puller 2
The upper surface of ailhead 31.
Step 2, cover half move upwards realization die sinking, and ejecting mechanism can drive ejector retainner plate 5, needle plate 4 and each mandril 9 to dynamic
Mould moves, and mandril 9 is contacted with product piece ejects it out of dynamic model, and the process of delay distance 10mm is moved upwards in ejector retainner plate 5
In, sprue puller 2 and 3 holding positions of delay nail are constant.In product piece ejection process, it will expect falling in sprue mold insert 1 in mandril 9
Always side gate 11 is stayed under the action of button, product piece, disconnecting, realizes the separation of the two with material.Step 3, when ejector retainner plate 5 to
During upper movement delay distance 10mm, ailhead 31 is touched with 8 hole shoulder grafting of stepped hole, and ejector retainner plate 5 drives delay nail 3 and sprue puller 2 together
It moves upwards, while product piece continues from dynamic die liftout, the top of sprue puller 2 will expect being ejected out of side gate 11, in fact
Now expect the separation with sprue mold insert 1, then material handle and product piece are removed.
Certainly, above description is not limitation of the present invention, this hair is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention should also belong to the present invention's
Protection domain.
Claims (8)
1. it is a kind of from dynamic circuit breaker cast gate injection mold, including dynamic model, cover half, sprue mold insert, sprue puller, delay nail, needle plate and thimble
Plate, which is characterized in that the sprue mold insert is arranged in dynamic model, inside be provided with side gate；
The side of the lower part of side gate to dynamic model cavity surface is recessed to form back-off；
Sprue mold insert is inserted on the top of the sprue puller, and its underpart is located in needle plate, sprue puller respectively with sprue mold insert and needle plate
It is slidably connected；
Ejector retainner plate is located at the lower section of needle plate, is fixedly linked with needle plate；
The stepped hole for placing delay nail is provided on ejector retainner plate, the ailhead for the nail that is delayed is located in the epimere of stepped hole, can be relative to top
Needle plate moves along its axis；
, the lower end in contact of ailhead and sprue puller opposite with the sprue puller forward direction above it is followed closely in the delay.
It is 2. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that be provided with below ejector retainner plate
The bottom of ejector retainner plate is stretched out in bottom plate, the lower end for the nail that is delayed, and can withstand on the upper surface of bottom plate, and delay nail stretches out the portion of ejector retainner plate bottom
Set up separately and be equipped with clamp spring.
It is 3. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the top setting of the needle plate
There are multiple mandrils, dynamic model is inserted into the upper end of each mandril, and the cavity surface of extended dynamic model, lower end is fixedly linked with needle plate.
It is 4. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the cover half is located at dynamic model
Top after the molding of dynamic model and cover half, forms injection die cavities between the two, and injection die cavities are connected the height h of part with side gate
For 1mm.
It is 5. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the ailhead and ladder for the nail that is delayed
When the hole shoulder grafting in hole touches, height between the top of ailhead and ejector retainner plate upper surface for delay distance H, the distance that is delayed H for 8mm~
12mm。
It is 6. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the middle part set of the sprue puller
There is guide sleeve, guide sleeve is installed on by fixed block on dynamic model.
It is 7. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the back-off amount L of the back-off
For 0.7mm.
It is 8. according to claim 1 a kind of from dynamic circuit breaker cast gate injection mold, which is characterized in that the upper end of the sprue puller is
Intermediate taper round end structure high, edge is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033518.3A CN108127874A (en) | 2018-01-15 | 2018-01-15 | One kind is from dynamic circuit breaker cast gate injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033518.3A CN108127874A (en) | 2018-01-15 | 2018-01-15 | One kind is from dynamic circuit breaker cast gate injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108127874A true CN108127874A (en) | 2018-06-08 |
Family
ID=62400587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810033518.3A Pending CN108127874A (en) | 2018-01-15 | 2018-01-15 | One kind is from dynamic circuit breaker cast gate injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108127874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000818A (en) * | 2021-02-23 | 2021-06-22 | 广州和德轻量化成型技术有限公司 | Vertical indirect extrusion casting device for vacuum pump rotor and preparation method thereof |
| CN113103528A (en) * | 2021-04-06 | 2021-07-13 | 青岛海尔空调器有限总公司 | Material cake separation device, material cake separation combination device and injection molding and taking device |
| CN113799331A (en) * | 2021-09-09 | 2021-12-17 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar cutting function |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005861A (en) * | 1998-06-19 | 2000-01-11 | Sharp Corp | Device and method for molding |
| CN202862530U (en) * | 2012-10-19 | 2013-04-10 | 大连大显高木模具有限公司 | Automobile radiator grille mould with sprue automatic cut off structure |
| CN103481468A (en) * | 2013-09-24 | 2014-01-01 | 凡嘉科技（无锡）有限公司 | Mould ejection mechanism capable of automatically separating side gate |
| CN207825397U (en) * | 2018-01-15 | 2018-09-07 | 青岛海泰科模具有限公司 | One kind is from dynamic circuit breaker cast gate injection mold |
-
2018
- 2018-01-15 CN CN201810033518.3A patent/CN108127874A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005861A (en) * | 1998-06-19 | 2000-01-11 | Sharp Corp | Device and method for molding |
| CN202862530U (en) * | 2012-10-19 | 2013-04-10 | 大连大显高木模具有限公司 | Automobile radiator grille mould with sprue automatic cut off structure |
| CN103481468A (en) * | 2013-09-24 | 2014-01-01 | 凡嘉科技（无锡）有限公司 | Mould ejection mechanism capable of automatically separating side gate |
| CN207825397U (en) * | 2018-01-15 | 2018-09-07 | 青岛海泰科模具有限公司 | One kind is from dynamic circuit breaker cast gate injection mold |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000818A (en) * | 2021-02-23 | 2021-06-22 | 广州和德轻量化成型技术有限公司 | Vertical indirect extrusion casting device for vacuum pump rotor and preparation method thereof |
| CN113103528A (en) * | 2021-04-06 | 2021-07-13 | 青岛海尔空调器有限总公司 | Material cake separation device, material cake separation combination device and injection molding and taking device |
| CN113799331A (en) * | 2021-09-09 | 2021-12-17 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar cutting function |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
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Application publication date: 20180608 |