CN207657105U - Fretting map exhaust structure of injection mold - Google Patents
Fretting map exhaust structure of injection mold Download PDFInfo
- Publication number
- CN207657105U CN207657105U CN201721688254.2U CN201721688254U CN207657105U CN 207657105 U CN207657105 U CN 207657105U CN 201721688254 U CN201721688254 U CN 201721688254U CN 207657105 U CN207657105 U CN 207657105U
- Authority
- CN
- China
- Prior art keywords
- air discharge
- discharge duct
- depth
- injection mold
- core
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 18
- 239000007924 injection Substances 0.000 title claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 210000002381 plasma Anatomy 0.000 claims abstract description 10
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 description 12
- 230000007547 defect Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920001871 amorphous plastic Polymers 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229920001887 crystalline plastic Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Fretting map exhaust structure of injection mold, including upper compound plate and lower compound plate, cavity is set under upper compound plate, upper ejector retainner plate, lower ejector retainner plate, thimble and support block are set on lower compound plate, core is set on support block, die cavity is formed between core and cavity, there is the micro-foamed plastic part of injection molding in die cavity, it is characterised in that：The surrounding that the upper surface of the core is located at die cavity is formed with four or more air discharge duct, the inside of air discharge duct and mould cavity, plasmas channel is formed on the outside of air discharge duct, interval S between each air discharge duct is 25-50mm, the length L of air discharge duct is 2-3mm, the width B of air discharge duct is 6mm, and the depth D of air discharge duct is 0.013-0.7mm, and the depth H of plasmas channel is 0.4-0.8mm.
Description
Technical field
The utility model is related to fretting map injection molds, more particularly to fretting map exhaust structure of injection mold.
Background technology
Fretting map injection mold makes sizing material send out that is, by injecting nitrogen or carbon dioxide in the sizing material that barrel stirs
Bubble, then will be in the sizing material injection mold after foaming.And air discharge duct can be all set in the injection mold of fretting map, for mould to be discharged
Extra gas in chamber, the processing staff for having mold typically process the size of air discharge duct, first process smaller row by rule of thumb
Air drain depth gradually opens depth when die trial further according to the product produced, therefore is easy exhaust groove depth opening depth, causes to be molded into
There is overlap and hair defect in the product of type, in addition continuous die trial and secondary operation, and processing staff's labor intensity is big, the manufacture of mold
Efficiency is low.
Invention content
The purpose of this utility model is to overcome prior art there are the shortcomings that, it is high to provide a kind of exhaust efficiency, avoids
There is overlap, hair defect in product, ensures the fretting map exhaust structure of injection mold of product design beauty.
The technical solution of the utility model fretting map exhaust structure of injection mold is：It is upper multiple including upper compound plate and lower compound plate
Cavity is set under plate, upper ejector retainner plate, lower ejector retainner plate, thimble and support block are set on lower compound plate, core, core and type are set on support block
Die cavity is formed between chamber, there is the micro-foamed plastic part of injection molding in die cavity, it is characterised in that：The upper surface position of the core
It is formed with four or more air discharge duct, the inside of air discharge duct and mould cavity, the outside system of air discharge duct in the surrounding of die cavity
There is plasmas channel, the interval S between each air discharge duct is 25-50mm, and the length L of air discharge duct is 2-3mm, air discharge duct
Width B is 6mm, and the depth D of air discharge duct is 0.013-0.7mm, and the depth H of plasmas channel is 0.4-0.8mm.
The utility model discloses a kind of fretting map exhaust structure of injection mold, by being located at die cavity in the upper surface of core
Surrounding be formed at least four air discharge ducts, the interval S between each air discharge duct be 25-50mm（The volume of mold is bigger, air discharge duct
Quantity it is more）, the length L of air discharge duct is 2-3mm, and the width B of air discharge duct is 6mm, and the depth H of plasmas channel is 0.4-
The depth D of air discharge duct is especially designed as 0.013-0.7mm by 0.8mm, can design different depths according to different plastic materials
The air discharge duct of degree ensures exhaust efficiency between the depth is limited to 0.013-0.7mm, and be avoided that exhaust groove depth mistake
It is deep, and product is caused overlap and hair defect occur, ensure that product design is beautiful.
The depth D of the utility model fretting map exhaust structure of injection mold, the air discharge duct is 0.013-0.02mm.If
When injected plastics material is crystalline plastics, 0.013-0.02mm can be made in the depth of air discharge duct.The depth D of the air discharge duct is
0.013—0.038mm.If injected plastics material is amorphous plastics, 0.013-0.038mm can be made in the depth of air discharge duct.Institute
The depth D for stating air discharge duct is 0.6-0.7mm.If injected plastics material is unformed plastics（Add glass fibre）When, it can be by air discharge duct
0.6-0.7mm is made in depth.
Description of the drawings
Fig. 1 is the schematic cross-section of the utility model fretting map exhaust structure of injection mold；
Fig. 2 is close-up schematic view at the A of Fig. 1；
Fig. 3 is the schematic top plan view of core.
Specific implementation mode
The utility model is related to a kind of fretting map exhaust structure of injection mold, as shown in Fig. 1-Fig. 3, including 1 He of upper compound plate
Lower compound plate 2, is arranged cavity 3 under upper compound plate, the upper ejector retainner plate 4 of setting, lower ejector retainner plate 5, thimble 6 and support block 7 on lower compound plate, on support block
Core 8 is set, forms die cavity between core and cavity, there is the micro-foamed plastic part 9 of injection molding in die cavity, it is characterised in that：
The surrounding that the upper surface of the core 8 is located at die cavity is formed with four or more air discharge duct 10, the inside of air discharge duct with
Mould cavity is formed with plasmas channel 11 on the outside of air discharge duct, and the interval S between each air discharge duct 10 is 25-50mm, row
The length L of air drain is 2-3mm, and the width B of air discharge duct is 6mm, and the depth D of air discharge duct is 0.013-0.7mm, plasmas channel 11
Depth H be 0.4-0.8mm.Surrounding by being located at die cavity in the upper surface of core 8 is formed at least four air discharge ducts 10, respectively
Interval S between air discharge duct is 25-50mm（The volume of mold is bigger, and the quantity of air discharge duct is more）, the length L of air discharge duct is
The width B of 2-3mm, air discharge duct are 6mm, and the depth H of plasmas channel 11 is 0.4-0.8mm, especially by the depth of air discharge duct 10
Degree D is designed as 0.013-0.7mm, can design the air discharge duct of different depth according to different plastic materials, which is limited
Between 0.013-0.7mm, that is, ensure exhaust efficiency, but be avoided that exhaust groove depth it is too deep, and cause product occur overlap and
Hair defect ensures that product design is beautiful.The depth D of the air discharge duct 10 is 0.013-0.02mm.If injected plastics material is crystallization shape
When material, 0.013-0.02mm can be made in the depth of air discharge duct 10.The depth D of the air discharge duct 10 is 0.013-0.038mm.
If injected plastics material is amorphous plastics, 0.013-0.038mm can be made in the depth of air discharge duct 10.The air discharge duct 10
Depth D is 0.6-0.7mm.If injected plastics material is unformed plastics（Add glass fibre）When, the depth of air discharge duct 10 can be made
0.6—0.7mm。
Claims (4)
1. fretting map exhaust structure of injection mold, including upper compound plate（1）With lower compound plate（2）, cavity is set under upper compound plate（3）, under
Upper ejector retainner plate is set on compound plate（4）, lower ejector retainner plate（5）, thimble（6）And support block（7）, core is set on support block（8）, core and type
Die cavity is formed between chamber, there is the micro-foamed plastic part of injection molding in die cavity（9）, it is characterised in that：The core（8）It is upper
The surrounding that end face is located at die cavity is formed with four or more air discharge duct（10）, the inside of air discharge duct and mould cavity, exhaust
Plasmas channel is formed on the outside of slot（11）, each air discharge duct（10）Between interval S be 25-50mm, the length of air discharge duct
L is 2-3mm, and the width B of air discharge duct is 6mm, and the depth D of air discharge duct is 0.013-0.7mm, plasmas channel（11）Depth H
For 0.4-0.8mm.
2. fretting map exhaust structure of injection mold as described in claim 1, it is characterised in that：The air discharge duct（10）Depth
D is 0.013-0.02mm.
3. fretting map exhaust structure of injection mold as described in claim 1, it is characterised in that：The air discharge duct（10）Depth
D is 0.013-0.038mm.
4. fretting map exhaust structure of injection mold as described in claim 1, it is characterised in that：The air discharge duct（10）Depth
D is 0.6-0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721688254.2U CN207657105U (en) | 2017-12-07 | 2017-12-07 | Fretting map exhaust structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721688254.2U CN207657105U (en) | 2017-12-07 | 2017-12-07 | Fretting map exhaust structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207657105U true CN207657105U (en) | 2018-07-27 |
Family
ID=62940773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721688254.2U Active CN207657105U (en) | 2017-12-07 | 2017-12-07 | Fretting map exhaust structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207657105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877792A (en) * | 2017-12-07 | 2018-04-06 | 浙江凯华模具有限公司 | Fretting map exhaust structure of injection mold |
-
2017
- 2017-12-07 CN CN201721688254.2U patent/CN207657105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877792A (en) * | 2017-12-07 | 2018-04-06 | 浙江凯华模具有限公司 | Fretting map exhaust structure of injection mold |
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