CN209521188U - A kind of polyurethane blowing mold of release agent-free - Google Patents
A kind of polyurethane blowing mold of release agent-free Download PDFInfo
- Publication number
- CN209521188U CN209521188U CN201821770493.7U CN201821770493U CN209521188U CN 209521188 U CN209521188 U CN 209521188U CN 201821770493 U CN201821770493 U CN 201821770493U CN 209521188 U CN209521188 U CN 209521188U
- Authority
- CN
- China
- Prior art keywords
- tetrafluoro
- forming surface
- mold
- die joint
- release agent
- 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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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of polyurethane blowing molds of release agent-free, including mold, forming surface is equipped in the mold, the edge of forming surface is equipped with die joint, the forming surface position is covered with tetrafluoro layer, the die joint position offers the annular groove around forming surface, and be configured in annular groove using three kinds of modes: 1 sets gradually the inflatable seal item and tetrafluoro press strip of the conjunction that offsets from inside to outside；2 set gradually the high resiliency sealing strip and tetrafluoro press strip of the conjunction that offsets from inside to outside；3 high resiliency sealing strip outer surfaces, which are wrapped up in, wraps up in item with tetrafluoro.The problem of the utility model can avoid polyurethane foam material adhesion forming surface by set tetrafluoro layer, achievees the effect that release agent-free, improves production efficiency；Designed die joint position, the seal assemblies such as inflatable seal item for avoiding polyurethane foam material adhesion traditional extend the service life of seal assembly on the basis of improving leakproofness, reducing edge grinding.
Description
Technical field
The utility model relates to foaming technique fields, and in particular to a kind of polyurethane blowing mold of release agent-free.
Background technique
The production technology of polyurethane foam is that foaming mould is heated up to proper temperature with die heater, then passes through foaming machine
By liquid polyurethane foamed material inject closed mode state under foaming mould in and chemically react, to polyurethane foam material by liquid
When state is shaped to the solid-state sponge of certain shapes and size, then die sinking pickup is carried out to it.It is glued well since polyurethane has
Knot property is easy to generate bonding with foaming mould, die cover is caused to be difficult to open, so before foaming machine injects polyurethane foam material
Release agent must be sprayed to the forming surface of foaming mould, while foaming mould sealing effect at die joint is undesirable, is also easy to produce
Edge grinding causes edge grinding more, easily reduces the product time and aesthetics of foaming product, existing foaming mould is usually at its die joint
Fluting is embedded the seal assemblies such as inflatable seal item to improve sealing effect, to avoid polyurethane from bonding sealing group at die joint
Part, it is also necessary to which release agent is sprayed to die joint.Due to spraying release agent not only complex steps, waste time, be also difficult to ensure de-
Mould agent sprays uniformly without dead angle.
Utility model content
The purpose of this utility model is to provide a kind of polyurethane blowing molds of release agent-free, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of polyurethane foam mould of release agent-free
Tool, including mold, the mold is interior to be equipped with forming surface, and the edge of forming surface is equipped with die joint, and the forming surface position is covered
It is stamped tetrafluoro layer；The die joint position offers the annular groove around forming surface, the one of separate die joint in annular groove
Side is equipped with inflatable seal item, and the side in annular groove close to die joint is equipped with tetrafluoro press strip, at the same tetrafluoro press strip with
The inflatable seal item offsets conjunction.
Preferably, the forming surface position offer multiple random distributions for enhancing tetrafluoro layer and mold adhesion
Drilling.
Preferably, the tetrafluoro layer is by heating liquefaction and pouring molding is in drilling and forming surface position.
Preferably, the tetrafluoro layer with a thickness of 1 to 7mm.
Preferably, after the mold is molded, and inflatable seal item is after inflation, the tetrafluoro press strip
It is bonded through inflatable seal extrusion deformation and with opposite die joint.
Preferably, the die joint position offers the annular groove around forming surface, separate die joint in annular groove
Side be equipped with high resiliency sealing strip, the side in annular groove close to die joint is equipped with tetrafluoro press strip, while tetrafluoro pressure
Item and the high resiliency sealing strip offset conjunction.The side of the tetrafluoro press strip is higher by the die joint, when the mold carries out
After molding, the high resiliency sealing strip is in squeezed state.
Compared with prior art, the utility model has the beneficial effects that the utility model covers tetrafluoro in forming surface position
Layer, avoids the problem that polyurethane foam material adhesion forming surface, achievees the effect that release agent-free, improve production efficiency；Exist simultaneously
It is improved on the basis of the seal assemblies such as original inflatable seal item, item and inflation is wrapped up in by set tetrafluoro press strip or tetrafluoro
The mode that formula sealing strip or high resiliency sealing strip combine, avoids the traditional seal assembly of polyurethane foam material adhesion, is improving
Leakproofness on the basis of reducing edge grinding, extends the service life of seal assembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mold described in the utility model；
Fig. 2 is the sectional view in the utility model embodiment 2 at the die joint of mold molding front and back；
Fig. 3 is the sectional view in the utility model embodiment 3 at the die joint of mold molding front and back；
Fig. 4 is the sectional view in the utility model embodiment 4 at the die joint of mold molding front and back；
In figure: 10 molds, 11 forming surfaces, 111 drillings, 12 die joints, 121 annular grooves, 20 tetrafluoro layers, 30 tetrafluoros
Press strip, 40 inflatable seal items, 50 high resiliency sealing strips, 60 tetrafluoros wrap up in item.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
Referring to Fig. 1, the present embodiment provides a kind of technical solutions: a kind of polyurethane blowing mold of release agent-free, including
Mold 10, mold 10 is interior to be equipped with forming surface 11, and the edge of forming surface 11 is equipped with die joint 12, and wherein 11 position of forming surface is covered
It is stamped tetrafluoro layer 20.
Further, 11 position of forming surface offers the viscous for enhancing tetrafluoro layer 20 and mold 10 of multiple random distributions
Drilling 111 even.
Further, tetrafluoro layer 20 is by heating liquefaction and pouring molding is in drilling 111 and 11 position of forming surface.
Further, tetrafluoro layer 20 with a thickness of 1 to 7mm.
Embodiment 2
In conjunction with the embodiments 1, Fig. 1 and Fig. 2 are please referred to, 12 position of die joint offers the annular groove around forming surface 11
121, the side in annular groove 121 far from die joint 12 is equipped with inflatable seal item 40, in annular groove 121 close to point
The side in type face 12 is equipped with tetrafluoro press strip 30, while tetrafluoro press strip 30 and inflatable seal item 40 offset conjunction.When mold 10
After being molded, and inflatable seal item 40 is after inflation, tetrafluoro press strip 30 through 40 extrusion deformation of inflatable seal item simultaneously
It is bonded with opposite die joint 12.
Embodiment 3
In conjunction with the embodiments 1, Fig. 1 and Fig. 3 are please referred to, 12 position of die joint offers the annular groove around forming surface 11
121, the side in annular groove 121 far from die joint 12 is equipped with high resiliency sealing strip 50, in annular groove 121 close to point
The side in type face 12 is equipped with tetrafluoro press strip 30, while tetrafluoro press strip 30 and high resiliency sealing strip 50 offset conjunction.Tetrafluoro press strip 30
Side be higher by die joint 12, after mold 10 is molded, molding effect under, high resiliency sealing strip 50 is deformed
To realize 10 sealing state of mold.
Embodiment 4
In conjunction with the embodiments 1, Fig. 1 and Fig. 4 are please referred to, 12 position of die joint offers the annular groove around forming surface 11
121, high resiliency sealing strip 50 is equipped in annular groove 121,50 outer surface of high resiliency sealing strip, which is wrapped up in, wraps up in item 60 with tetrafluoro,
The side that tetrafluoro wraps up in item 60 is higher by die joint 12, after mold 10 is molded, under molding effect, and high resiliency sealing strip
50 are deformed to realize 10 sealing state of mold.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of polyurethane blowing mold of release agent-free, including mold (10), the mold (10) is interior to be equipped with forming surface
(11), the edge of forming surface (11) is equipped with die joint (12), it is characterised in that: forming surface (11) position is covered with tetrafluoro layer
(20)；Die joint (12) position offers the annular groove (121) around forming surface (11), remote in annular groove (121)
Side from die joint (12) is equipped with inflatable seal item (40), close to the side of die joint (12) in annular groove (121)
It is equipped with tetrafluoro press strip (30), while tetrafluoro press strip (30) and the inflatable seal item (40) offset conjunction.
2. a kind of polyurethane blowing mold of release agent-free according to claim 1, it is characterised in that: the forming surface
(11) position offers the drilling (111) for being used to enhance tetrafluoro layer (20) Yu mold (10) adhesion of multiple random distributions.
3. a kind of polyurethane blowing mold of release agent-free according to claim 2, it is characterised in that: the tetrafluoro layer
(20) it is liquefied by heating and pouring molding is in drilling (111) and forming surface (11) position.
4. a kind of polyurethane blowing mold of release agent-free according to claim 1, it is characterised in that: the tetrafluoro layer
(20) with a thickness of 1 to 7mm.
5. a kind of polyurethane blowing mold of release agent-free according to claim 1, it is characterised in that: when the mold
(10) after being molded, and inflatable seal item (40), after inflation, the tetrafluoro press strip (30) is through inflatable seal item
(40) it extrusion deformation and is bonded with opposite die joint (12).
6. a kind of polyurethane blowing mold of release agent-free according to claim 1, it is characterised in that: sealed with high resiliency
Item (50) replaces the inflatable seal item (40).
7. a kind of polyurethane blowing mold of release agent-free according to claim 6, it is characterised in that: the tetrafluoro press strip
(30) side is higher by the die joint (12), after the mold (10) is molded, the high resiliency sealing strip (50)
In squeezed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770493.7U CN209521188U (en) | 2018-10-30 | 2018-10-30 | A kind of polyurethane blowing mold of release agent-free |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770493.7U CN209521188U (en) | 2018-10-30 | 2018-10-30 | A kind of polyurethane blowing mold of release agent-free |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209521188U true CN209521188U (en) | 2019-10-22 |
Family
ID=68213165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821770493.7U Expired - Fee Related CN209521188U (en) | 2018-10-30 | 2018-10-30 | A kind of polyurethane blowing mold of release agent-free |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209521188U (en) |
-
2018
- 2018-10-30 CN CN201821770493.7U patent/CN209521188U/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 |
Granted publication date: 20191022 Termination date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |