CN205853243U - A kind of TPU expanded beads injection mo(u)lding die for shoe-sole - Google Patents
A kind of TPU expanded beads injection mo(u)lding die for shoe-sole Download PDFInfo
- Publication number
- CN205853243U CN205853243U CN201620883665.6U CN201620883665U CN205853243U CN 205853243 U CN205853243 U CN 205853243U CN 201620883665 U CN201620883665 U CN 201620883665U CN 205853243 U CN205853243 U CN 205853243U
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- China
- Prior art keywords
- die
- sole
- shoe
- expanded beads
- lding
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Abstract
The utility model discloses a kind of TPU expanded beads injection mo(u)lding die for shoe-sole, including die, die cap and knock-pin, described die is provided with die cavity, described mold cavity bottoms is provided with two and ejects hole and several cores, a diameter of 0.8 1.2mm of described core, said two core spacing be not less than 3mm, described knock-pin be inserted in described in eject in hole, described die cap covers on described die.TPU expanded beads injection mo(u)lding die for shoe-sole energy fusion time of the present utility model is short, cooling and shaping is fast, beadlet welding is good in expanded material, steady quality, production efficiency are high, it is possible to realizes mechanization and automatically produces.
Description
Technical field
This utility model relates to die for shoe-sole field, is specifically related to a kind of TPU expanded beads injection mo(u)lding die for shoe-sole.
Background technology
TPU is the abbreviation of Polyurethane Thermoplastic Elastomer, is the one in PU family.By toluene di-isocyanate(TDI)
Or diisocyanate quasi-molecule and macromolecular polyol, the low molecular polylol such as '-diphenylmethane diisocyanate (MDI) (TDI)
The macromolecular material of (chain extender) common reactive polymeric.Its particle appearance is true qualities (transparent yellow and opaque between) and thoroughly
The bright big class of pellet two.Polyether-type and the big class of polyester-type two can be divided into by chemical composition.TPU has the performance of various excellence, such as: combine
Close satisfactory mechanical property, antimicrobial erosion performance excellence, resistant to hydrolysis, grease resistance, low temperature resistant, heat-resisting, chemical resistance
Well, especially anti-wear performance is the most prominent, hardness range width, and flexibility is good.Existing high rigidity has again high resiliency, is other plastics
Unexistent with rubber [1].It has the characteristics such as renewable simultaneously.
TPU expanded beads is to have rock-steady structure micropore by what TPU raw material obtained by either physically or chemically foaming
Material, its diameter is typically between 5mm to 7mm, and foamed materials has an advantage that it is exclusive:
1) impact resistance load performance is excellent, and when foam plastics is by impact compress, inner cell plays the work of compression rebound
With, consume impact energy, therefore have preferable bumper and absorbing shock function；
2) density is little, less than the density of similar polymers more than ten times even tens times；
3) excellent heat-proof quality, the abscess of polymeric inner is internal is gas, but the heat transfer coefficient of gas typically than
The heat transfer coefficient of polymer is low, and pore can prevent the convection current of air simultaneously, and therefore foam plastics has a heat insulating function, but foam plastic
Material is due to the existence of inner cell, and the wall of polymer can become relatively thin, and therefore temperature is too high likely can make foamed materials soften；
4) excellent soundproof effect, polymeric inner abscess can absorb acoustic wave energy, can eliminate again acoustic resonance, therefore
The function reducing acoustic resonance can be played；
5) specific strength is higher, and the strength of materials claims specific strength with the ratio of material relative density, and the strength ratio of foam plastics is former
Material slightly reduces and density declines to a great extent, and therefore the specific strength of usual foam plastics is bigger.
Use TPU to manufacture sole, owing to the thickness needed for sole is relatively big, typically its molding mode is mainly molded into
Type.The function of injection is that TPU is processed into required product, is divided into preformed, injection and machine and goes out the discontinuous mistake of three phases
Journey.Injector divides screw and plunger type two kinds.General screw-type injection machine, because it can provide uniform speed, mould
Change and melted.The principle of injection is the shearing of the rotation of the heating outside TPU granule passes through in the barrel of plastics machine and screw rod
It is plastified into after melt by applying certain pressure by heat, and melt is expelled to have in effigurate die cavity through supercool
But the article wanted are obtained.Injection mo(u)lding is the highest to the requirement of temperature, the situations such as local stricture of vagina splits often occurs, and during molding
Between slower.The sole that injection mo(u)lding simultaneously is produced often produces substantial amounts of defect ware, the sole product color mainly produced
Not enough, it is impossible to reach the effect originally wanted.
Utility model content
(1) to solve the technical problem that
The deficiency existed for prior art, this utility model provides a kind of TPU expanded beads injection mo(u)lding die for shoe-sole.
(2) technical scheme
For reaching above-mentioned purpose, this utility model provides a kind of TPU expanded beads injection mo(u)lding die for shoe-sole, including recessed
Mould, die cap and knock-pin, described die is provided with die cavity, and described mold cavity bottoms is provided with two and ejects hole and several cores, described
A diameter of 0.8-1.2mm of core, said two core spacing be not less than 3mm, described knock-pin be inserted in described in eject in hole,
Described die cap covers on described die.
Further, described die being additionally provided with air chamber, described air chamber is positioned at described die cavity lower end, described core and described gas
Room is connected, and described air chamber is provided with air inlet and osculum.
Further, described die cap is provided with several Cooling Holes, a diameter of 1.8-2.2mm of described Cooling Holes, and described two
Distance between individual Cooling Holes is 10-15mm.
Further, described knock-pin includes the body of rod and is arranged on the round platform of body of rod upper end.
(3) beneficial effect
This utility model TPU expanded beads injection mo(u)lding die for shoe-sole fusion time is short, cooling and shaping is fast, in expanded material
Beadlet welding is good, steady quality, production efficiency are high, it is possible to realizes mechanization and automatically produces.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model TPU expanded beads injection mo(u)lding die for shoe-sole；
Fig. 2 is the structural representation of die in this utility model TPU expanded beads injection mo(u)lding die for shoe-sole；
Fig. 3 is the structural representation of knock-pin in this utility model TPU expanded beads injection mo(u)lding die for shoe-sole.
Wherein, 1 is die, and 2 is die cap, and 3 is knock-pin, and 4 is air chamber, and 5 is sole, and 6 is die cap, and 7 is die cavity, and 8 is top
Portalling, 9 is core, and 10 is air inlet, and 11 is osculum, and 12 is the body of rod, and 13 is round platform.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Below
Embodiment is used for illustrating this utility model, but is not limited to scope of the present utility model.
In a kind of TPU expanded beads injection mo(u)lding die for shoe-sole of the present utility model, the structure of die is as shown in Figure 1, Figure 2 and Fig. 3
Shown in, including die 1, die cap 2, air chamber 4 and knock-pin 3, described die 1 is provided with die cavity 7, and sole 5 is by die cavity 7 molding, described
Be provided with two bottom die cavity 7 and eject hole 8 and several cores 9, described knock-pin 3 be inserted in described in eject in hole 8, described die cap 2
Covering on described die 1, described air chamber 4 is positioned at described die cavity 7 lower end, and described core 9 is connected with described air chamber 4.
Shape according to sole designs the die cavity 7 of die 1, owing to expanded beads has necessarily after being passed through high-temperature steam
Swelling degree thus according to sole shape design described die cavity 7 height be 15mm, its length is about 220mm, and width is
60mm.Because dies cavity becomes irregular, so being difficult to be drawn the wall thickness of mould by design standard.Thus list several
The wall thickness of mould selects, respectively 6mm, 5 sizes such as 8mm, 10mm, 12mm, 14mm, then determines optimum by experimental technique
Wall thickness.Given below is when the narrowest wall thickness of mould is 10mm, and the entire length of die 1 is 250mm, and width is 80mm, high
Degree is 25mm.
Core 9 selects a diameter of 1.8-1.2mm, on the bottom that 3mm is evenly distributed in described die cavity 7, selects gas
Eye 9 be the reason of 1.8-1.2mm be the diameter of TPU expanded beads about between 5 to 7mm, when core 9 is 1.8-1.2mm,
Raw material will not block core 9, impact ventilation and the demoulding because pore is excessive.The core 9 of 1.8-1.2mm can be well simultaneously
Steam is passed into die cavity 7.Selecting the benefit being spaced apart 3mm is that raw material can be heated uniformly, will not be because of core 9 spacing
Excessive and inequality of being heated, 3mm is raw material diameter simultaneously, and too small meeting causes processing mold difficulty to strengthen, and workload improves.
Air chamber 4 designs below die 1, and air chamber 4 is 10mm with the wall thickness of described die cavity 7.Whole air chamber 4 is closed length
Square configuration, its a length of 240mm, width is 60mm, and height is 10mm.Two holes are dug out below air chamber 4, the two hole
Effect is through ejecting mechanism, and the diameter in the two hole sets with the diameter of knock-pin 3.One is designed in the side of air chamber 4
Osculum 11, the effect of osculum 11 is outside the cooling water drainage discharge chamber 4 that will flow down in die cavity 7.One is opened at air chamber 4 opposite side
Air inlet 10, the effect of this air inlet 10 is that the steam after heating is passed in air chamber 4, then is passed through to die cavity 7 by core 9.
Die cap 2 is 100mm by cast aluminium forming, a length of 250mm of die cap 2, width, and thickness is 15mm, and die cap 2 both sides have
Two Baltimore grooves, the degree of depth of groove is 5mm, and the width of groove is 25mm, it is possible to surrounded die 1 both sides.Baltimore groove runs through whole two
Side, can allow die cap 2 move back and forth on die 1.Die cap 2 is opened the Cooling Holes 6 of a diameter of 1.8-2.2mm, Cooling Holes 6
Distance ensures at 10 to 15mm, allows Cooling Holes 6 be evenly distributed in the part of die cap 2 die cavity, opens Cooling Holes 6 and is able to lead to
Enter to cool down water.Cooling water can be flow to uniformly in die cavity 7 so that plastic reaches the purpose of fast cooling.
Owing to sole is an irregular long curve form, so being provided with two knock-pins 3, design two knock-pins
The reason of 3 is for the preferably demoulding, if only design one, may cause the phenomenon of snap gauge, causes the plastic cannot be smooth
Taking-up, thus have impact on the efficiency of the demoulding.Described knock-pin 3 includes the body of rod 12 and is arranged on the round platform 13 of body of rod upper end, circle
The design of platform 13 is able to withstand plastic, it is ensured that under the thawing pressure of plastic, ejecting mechanism can be stablized.Will not be upper and lower
Mobile.Affect shape and the molding of mould.The body of rod 12 design is able to, when ejection die, move up and down flexibly.Circle
The a diameter of 15mm of upper surface of platform 13, below a diameter of 10mm of round platform.Round platform 13 is interference fits with coordinating of air chamber 4, really
Fixed its coordinates for H7/k6.Being φ 10 by the size in hole of tabling look-up, limit inferior deviation is 0.015, and upper end is 0.015.Axle
Size be φ 10, limit inferior deviation is 0.001, and upper end is 0.01.
The beneficial effects of the utility model: fusion time is short, cooling and shaping is fast, beadlet welding is good in expanded material, matter
Amount is stable, production efficiency is high, it is possible to realizes mechanization and automatically produces.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (4)
1. a TPU expanded beads injection mo(u)lding die for shoe-sole, it is characterised in that include die (1), die cap (2) and knock-pin
(3), described die (1) is provided with die cavity (7), and described die cavity (7) bottom is provided with two and ejects hole (8) and several cores (9), institute
Stating a diameter of 0.8-1.2mm of core (9), said two core (9) spacing is not less than 3mm, and described knock-pin (3) is inserted in institute
Stating and eject in hole (8), described die cap (2) covers on described die (1).
2. TPU expanded beads injection mo(u)lding die for shoe-sole as claimed in claim 1, it is characterised in that described die (1) is upper also
Being provided with air chamber (4), described air chamber (4) is positioned at described die cavity (7) lower end, and described core (9) is connected with described air chamber (4), institute
State air chamber (4) and be provided with air inlet (10) and osculum (11).
3. TPU expanded beads injection mo(u)lding die for shoe-sole as claimed in claim 1, it is characterised in that described die cap sets on (2)
Having several Cooling Holes (6), a diameter of 1.8-2.2mm of described Cooling Holes (6), the distance between said two Cooling Holes (6) is
10-15mm。
4. TPU expanded beads injection mo(u)lding die for shoe-sole as claimed in claim 1, it is characterised in that described knock-pin (3) wraps
Include the body of rod (12) and be arranged on the round platform (13) of body of rod upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620883665.6U CN205853243U (en) | 2016-08-16 | 2016-08-16 | A kind of TPU expanded beads injection mo(u)lding die for shoe-sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620883665.6U CN205853243U (en) | 2016-08-16 | 2016-08-16 | A kind of TPU expanded beads injection mo(u)lding die for shoe-sole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205853243U true CN205853243U (en) | 2017-01-04 |
Family
ID=57593646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620883665.6U Expired - Fee Related CN205853243U (en) | 2016-08-16 | 2016-08-16 | A kind of TPU expanded beads injection mo(u)lding die for shoe-sole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205853243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790232A (en) * | 2018-05-15 | 2018-11-13 | 定州市鼎足鞋业有限公司 | A kind of plastic sandals ejection formation injection mold and method |
| CN110948789A (en) * | 2019-11-07 | 2020-04-03 | 湖南工业大学 | Fiber reinforced starch composite material injection molding die and process thereof |
-
2016
- 2016-08-16 CN CN201620883665.6U patent/CN205853243U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790232A (en) * | 2018-05-15 | 2018-11-13 | 定州市鼎足鞋业有限公司 | A kind of plastic sandals ejection formation injection mold and method |
| CN108790232B (en) * | 2018-05-15 | 2020-08-28 | 定州市鼎足鞋业有限公司 | Injection mold and method for injection molding of plastic slippers |
| CN110948789A (en) * | 2019-11-07 | 2020-04-03 | 湖南工业大学 | Fiber reinforced starch composite material injection molding die and process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170104 Termination date: 20200816 |