CN206733465U - A kind of foaming mould with exhaust structure - Google Patents
A kind of foaming mould with exhaust structure Download PDFInfo
- Publication number
- CN206733465U CN206733465U CN201720484073.1U CN201720484073U CN206733465U CN 206733465 U CN206733465 U CN 206733465U CN 201720484073 U CN201720484073 U CN 201720484073U CN 206733465 U CN206733465 U CN 206733465U
- Authority
- CN
- China
- Prior art keywords
- foaming mould
- punch
- pin
- air discharge
- face
- 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
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 37
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000006260 foam Substances 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 7
- 239000011324 bead Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of foaming mould with exhaust structure, it is related to expandability GPPS (EPS) foam plastic product field, the device includes punch-pin and cavity plate, cavity plate forms a die cavity with punch-pin matched moulds, die cavity connects a feeding channel, and the contact area of punch-pin and cavity plate forms stitching surface, and air discharge duct is provided with by stitching surface；Simultaneously, foaming mould has pre- matched moulds state and matched moulds state, when it is in pre- matched moulds state, the contact area of cavity plate and punch-pin separates a determining deviation, and a gap with atmosphere is formed at stitching surface, and die cavity, the mutual UNICOM of air discharge duct and gap, when foaming mould is in matched moulds state, the contact area of cavity plate and punch-pin is bonded to each other, and air discharge duct and air are mutually isolated, the utility model can improve the exhaust effect of foaming mould, solve the problems, such as pan feeding deficiency.
Description
Technical field
It the utility model is related to expandability GPPS (EPS) foam plastic product field, and in particular to one kind has row
The foaming mould of depressed structure.
Background technology
The molding process of EPS (expandable polystyrene) product includes substantially：Pre- matched moulds, pan feeding, matched moulds, heating,
Cooling and the demoulding.Wherein pre- matched moulds process is when using clearance-type pan feeding, by pre- 8~12mm between stitching surface outside punch and matrix
Distance, it is the gap for expanding mould side that it, which is acted on, utilizes the surplus air in the gap discharge die cavity of punch and matrix side.
And the draw taper of existing cavity plate side is only 1 degree, the fit clearance of punch and matrix lateral layout is generally
0.20mm, as the punch and matrix spacing raising 1mm of pre- matched moulds, and exhaust clearance can only also increase 0.025mm, therefore existing knot
Structure is poor to the exhaust effect in die cavity, and the air in die cavity can not be completely exhausted out, and EPS prefoam beads cannot be filled up completely with
Full die cavity, so as to cause pan feeding deficiency in die cavity, producing EPS products has the defects of certain.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide a kind of hair with exhaust structure
Mould is steeped, exhaust effect is improved, solves the problems, such as pan feeding deficiency.
To achieve the above objectives, the utility model adopts the technical scheme that：A kind of foaming mould with exhaust structure,
Including：
Punch-pin；
Cavity plate, the cavity plate form a die cavity with the punch-pin matched moulds, and the die cavity connects a feeding channel, and described convex
The contact area of mould and the cavity plate forms stitching surface, and is provided with air discharge duct by the stitching surface；Meanwhile
The foaming mould has pre- matched moulds state and matched moulds state, when it is in pre- matched moulds state, the cavity plate with
The contact area of the punch-pin separates a determining deviation, and a gap with atmosphere is formed at the stitching surface, and described
Die cavity, the mutual UNICOM of air discharge duct and gap, when the foaming mould is in matched moulds state, the cavity plate connects with the punch-pin
Tactile region is bonded to each other, and the air discharge duct and air are mutually isolated.
On the basis of above-mentioned technical proposal, the punch-pin is provided with a stage portion, the cavity plate at the stitching surface
Position corresponding with the stage portion is provided with corner portion, and the corner portion is provided with first face almost parallel with die sinking direction, institute
Air discharge duct is stated to be opened on first face.
On the basis of above-mentioned technical proposal, when the foaming mould is in matched moulds state, the stage portion with it is described
The overlapping region in first face is the second face, and width of the air discharge duct on die sinking direction is less than second face in die sinking direction
On width.
On the basis of above-mentioned technical proposal, first face and projection width of the air discharge duct on second face
It is identical.
On the basis of above-mentioned technical proposal, the air discharge duct is groove.
On the basis of above-mentioned technical proposal, the air discharge duct is skewed slot.
On the basis of above-mentioned technical proposal, the angle in first face and second face is 1 degree, the air discharge duct and
The angle in second face is 6~8 degree.
On the basis of above-mentioned technical proposal, the mold cavity shapes are spill.
On the basis of above-mentioned technical proposal, the die cavity side wall is provided with vent plug.
On the basis of above-mentioned technical proposal, be equipped with the punch-pin and the cavity plate respectively with the punch-pin and described
The steam channel of connection, cooling-water duct and condensation drain passage inside cavity plate.
Compared with prior art, the utility model has the advantage of：
(1) a kind of foaming mould with exhaust structure in the utility model, by setting an air discharge duct, so as to increase
Exhaust effect during pan feeding in die cavity.
(2) air discharge duct is skewed slot, and is 6~8 degree with the angle in the second face, can preferably improve exhaust effect, and energy
Prevent prefoam bead from leaking out die cavity.
Brief description of the drawings
Fig. 1 is the mould-matching structure schematic diagram of foaming mould in the utility model embodiment；
Fig. 2 is the partial structural diagram of foaming mould in the utility model embodiment；
Fig. 3 is the pre- mould-matching structure schematic diagram of foaming mould in the utility model embodiment；
In figure：1- punch-pin, 10- stage portions, the faces of 11- second, 2- cavity plates, 20- corner portions, the faces of 21- first, 3- die cavitys, 30-
Stitching surface, 31- air discharge ducts, 32- gaps, 4- feeding channels, 5- vent plugs.
Embodiment
Embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Referring to shown in Fig. 1 to Fig. 3, the utility model embodiment provides a kind of foaming mould with exhaust structure, including
Punch-pin 1 and cavity plate 2, cavity plate 2 form a die cavity 3 with the matched moulds of punch-pin 1, and the die cavity 3 is shaped as spill and can store prefoam pearl
Grain and EPS (expandable polystyrene) product, are additionally provided with vent plug 5, the vent plug 5 passes through when can heat in the side wall of die cavity 3
Steam, additionally it is possible to the air in die cavity 3 is discharged when foaming mould is exhausted, die cavity 3 connects a feeding channel 4, and pan feeding leads to
Road 4 is also associated with a compressed air channel, and in pan feeding, prefoam bead is sent into die cavity 3 by compressed air, and punch-pin
1 and the contact area of cavity plate 2 form stitching surface 30, and the side of stitching surface 30 is provided with air discharge duct 31, by increasing capacitance it is possible to increase the die cavity in pan feeding
Interior exhaust effect.
It is recessed when foaming mould is in pre- matched moulds state meanwhile the foaming mould has pre- matched moulds state and matched moulds state
The contact area of mould 2 and punch-pin 1 separates a determining deviation, and a gap 32 with atmosphere is formed at stitching surface 30, and mould
Chamber 3, air discharge duct 31 and gap 32 are interconnected, when foaming mould is in matched moulds state, the contact area of cavity plate 2 and punch-pin 1
It is bonded to each other, and air discharge duct 31 and air are mutually isolated.
It is shown in Figure 2, wherein, punch-pin 1 is provided with a stage portion 10 at stitching surface 30, and cavity plate 2 and stage portion 10 are right
The position answered is provided with corner portion 20, and corner portion 20 is provided with first face 21 almost parallel with die sinking direction, and air discharge duct 31 is opened in
On first face 21, when foaming mould is in matched moulds state, the region overlapping with the first face 21 of stage portion 10 is the second face 11,
Width of the air discharge duct 31 on die sinking direction is less than width of second face 11 on die sinking direction, it is preferred that the first face 21 and row
Projection width of the air drain 31 on the second face 11 is identical, it is possible to increase the exhaust effect of the foaming mould, wherein air discharge duct 31 wrap
Include groove and skewed slot, it is preferred that air discharge duct 31 is skewed slot, and the angle in the first face 21 and the second face 11 is 1 degree, air discharge duct 31 and the
The angle in two faces 11 is 6~8 degree, wherein, when the angle in the face 11 of air discharge duct 31 and second is 8 degree, contact area spacing improves
1mm, exhaust clearance can increase 0.21mm, relative to the exhaust clearance for only utilizing the angle in the first face 21 and the second face 11 to be formed
To be exhausted, exhaust effect can be greatly improved, and the exhaust clearance is not enough to prefoam bead and leaks out die cavity 3, reduces
The loss of material.
Steam channel, the cooling-water duct respectively with being connected inside punch-pin 1 and cavity plate 2 are equipped with punch-pin 1 and cavity plate 2
With condensation drain passage, wherein, steam channel can heating when pass through steam, additionally it is possible to lead to when foaming mould is exhausted
Air is crossed, can further improve the exhaust effect of the foaming mould.
The utility model be mainly punch-pin 1 in pre- matched moulds and the contact area of cavity plate 2 separate 8~12mm apart from when,
, can be very there is provided an air discharge duct 31 in order to exclude the additional air in die cavity 3 by punch-pin 1 and the side clearance of cavity plate 2
It is vented when the good exhaust clearance for solving only to be formed using the angle in the first face 21 and the second face 11 is to be exhausted incomplete
Situation.
The utility model is not only limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model
Go out other various forms of products, however, make any change in its shape or structure, it is every to have and the utility model phase
Same or close technical scheme, within its protection domain.
Claims (10)
- A kind of 1. foaming mould with exhaust structure, it is characterised in that including：Punch-pin (1)；Cavity plate (2), the cavity plate (2) form a die cavity (3) with the punch-pin (1) matched moulds, and the die cavity (3) connects a pan feeding and led to Road (4), and the contact area of the punch-pin (1) and the cavity plate (2) forms stitching surface (30), and set by the stitching surface (30) There is air discharge duct (31)；MeanwhileThe foaming mould has pre- matched moulds state and matched moulds state, when it is in pre- matched moulds state, the cavity plate (2) and institute The contact area for stating punch-pin (1) separates a determining deviation, and a gap with atmosphere is formed at the stitching surface (30) place (32), and the die cavity (3), air discharge duct (31) and gap (32) mutual UNICOM, when the foaming mould is in matched moulds state, The cavity plate (2) and the contact area of the punch-pin (1) are bonded to each other, and the air discharge duct (31) and air are mutually isolated.
- A kind of 2. foaming mould with exhaust structure as claimed in claim 1, it is characterised in that：The punch-pin (1) is close Stitching surface (30) place is provided with a stage portion (10), and the cavity plate (2) position corresponding with the stage portion (10), which is provided with, to be turned Corner (20), the corner portion (20) are provided with first face (21) almost parallel with die sinking direction, and the air discharge duct (31) opens up In on first face (21).
- A kind of 3. foaming mould with exhaust structure as claimed in claim 2, it is characterised in that：At the foaming mould When matched moulds state, the stage portion (10) region overlapping with first face (21) is the second face (11), the air discharge duct (31) width on die sinking direction is less than width of second face (11) on die sinking direction.
- A kind of 4. foaming mould with exhaust structure as claimed in claim 3, it is characterised in that：First face (21) with Projection width of the air discharge duct (31) on second face (11) is identical.
- A kind of 5. foaming mould with exhaust structure as claimed in claim 3, it is characterised in that：The air discharge duct (31) is Groove.
- A kind of 6. foaming mould with exhaust structure as claimed in claim 3, it is characterised in that：The air discharge duct (31) is Skewed slot.
- A kind of 7. foaming mould with exhaust structure as claimed in claim 6, it is characterised in that：First face (21) with The angle of second face (11) is 1 degree, and the angle of the air discharge duct (31) and second face (11) is 6~8 degree.
- A kind of 8. foaming mould with exhaust structure as claimed in claim 1, it is characterised in that：Die cavity (3) shape For spill.
- A kind of 9. foaming mould with exhaust structure as claimed in claim 1, it is characterised in that：Die cavity (3) side wall It is provided with vent plug (5).
- A kind of 10. foaming mould with exhaust structure as claimed in claim 1, it is characterised in that：The punch-pin (1) and institute State and steam channel, the cooling-water duct with being connected inside the punch-pin (1) and the cavity plate (2) respectively is equipped with cavity plate (2) With condensation drain passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720484073.1U CN206733465U (en) | 2017-04-28 | 2017-04-28 | A kind of foaming mould with exhaust structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720484073.1U CN206733465U (en) | 2017-04-28 | 2017-04-28 | A kind of foaming mould with exhaust structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206733465U true CN206733465U (en) | 2017-12-12 |
Family
ID=60563454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720484073.1U Expired - Fee Related CN206733465U (en) | 2017-04-28 | 2017-04-28 | A kind of foaming mould with exhaust structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206733465U (en) |
-
2017
- 2017-04-28 CN CN201720484073.1U patent/CN206733465U/en not_active Expired - Fee Related
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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: 20171212 |