CN1104462A - Casting mold for connecting and foaming plastic sole on upper of shoe - Google Patents
Casting mold for connecting and foaming plastic sole on upper of shoe Download PDFInfo
- Publication number
- CN1104462A CN1104462A CN 93114158 CN93114158A CN1104462A CN 1104462 A CN1104462 A CN 1104462A CN 93114158 CN93114158 CN 93114158 CN 93114158 A CN93114158 A CN 93114158A CN 1104462 A CN1104462 A CN 1104462A
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- shaped
- groove part
- frame former
- formpiston
- mold
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Abstract
A framed female mould in which a shaping male mould may be put clamps air-tightly the shoe upper stretched over last. A separating seam between the shaping male mould and framed female mould is closed and expanded toward sealed cavity with injection channel. The sealed cavity contains the matter to sealing the separating seam.
Description
The present invention relates to a kind of mold at the bottom of connecting also foaming plastic shoemaking on the footwear system, this mold has the shaping former that maybe can enter this shaped as frame former within a shaped as frame former and this shaped as frame former of packing into, the shaped as frame former holds the bottom that is stretched in a footwear system on the shoe tree hermetically, is walking a branch groove part in the closing position of mold on the periphery in the intermode space between formpiston and the shaped as frame former simultaneously.
In this mold, sew on receiving compartment that is used for injection shoes bottom material overlap of connection at the somatotype of avoiding the die cavity side.This structure all has a material for sole of shoe overlap on the periphery of the sole of each connection and foamed, this overlap is to be formed by the material for sole of shoe of staying in the receiving compartment.The all overlaps in this garden must be removed in specific procedure of processing, for example remove by overlap cutting and sole deburring step.Like this, the overlap loss will account for 10% to 15% of material for sole of shoe.
By the preamble of the claim 1 of US-PS4562606 known a kind of mold, it only is used for the double-deck sole of foamed.Its first step replaces shoe tree to put into (bigger) top formpiston and foamed outsole by the footwear system, simultaneously, its overlap is crossed the boundary and is entered reception cavity, second step was to deviate from the top formpiston, put into (less) shoe tree and cavity that shoe tree/footwear are unified between the shaping formpiston is filled up and foamed by midsole materials by footwear systems, the overlap of outsole is as the branch groove part sealing of second step simultaneously.The 3rd step was overlap must be removed again, and this also brings shortcoming described above.This application file does not have explanation how can connect on a footwear system basically and one of foamed had not both had overlap not have the sole of deburring polishing frequently yet.In addition, the sealing effectiveness of " divide groove part sealing " is problematic in the second foamed step, because another patrix is that shaped as frame former and moulding formpiston are abutted against and could form " the branch groove part seals ", does not have patrix here here.
The purpose of this invention is to provide a kind of mold, can make the sole that is made of various plastic materials in simple and reliable mode by it, it does not have overlap and needn't deburring.According to the present invention, above-mentioned purpose reaches in the mold of the described type of beginning like this, and promptly somatotype is sewn on the annular seal space expansion of its side of avoiding die cavity towards a band injection canal, and the branch groove part that is injected into wherein that holds that the sealing chamber is used for fixing seals.
The sole of Zhi Zaoing no longer includes overlap by this way, thereby has saved the secondary process process of deflashing and deburring and avoided material unaccounted-for (MUF).
Actual showing, the continuous sole quantity that the branch groove part sealing of this injection is fit to make surpasses 1,000, at this restriction is arranged, and promptly must clean mold after about 1,000 sole, and seal erosion is fallen and must be replenished subsequently simultaneously.
In a preferred embodiment of mold of the present invention, its shaping formpiston is axially to put into the shaped as frame former, and annular seal space is formed in the inner peripheral surface of the axial trend of shaped as frame former, and this inner peripheral surface has constituted the branch groove part with the outer peripheral face of shaping formpiston.At this,, divide the groove part sealing only on the sealing of die cavity, joining, so material for sole of shoe can not damage the sealing of branch groove part with the material for sole of shoe of introducing owing to keep motionless in shaping formpiston and the sole manufacture process.
Can be to mold modification in addition, the shaping formpiston of mold is made shelly and it can axially enter the shaped as frame former, annular seal space is formed within the peripheral end face of shaping formpiston, and this end face constitutes the branch groove part with the peripheral inner platform of shaped as frame former.
Feed the annular seal space several holes in an advantageous manner, these holes are used for fixing branch groove part sealing when making sole on the one hand, discharge when being used to clean mold on the other hand and divide the groove part sealing.
Owing to divide groove part very narrow and therefore make the branch groove part be sealed in the mold closure state not to be corroded or not join, so preferably select the branch groove part encapsulant identical with material for sole of shoe with material for sole of shoe.
The embodiment that further feature of the present invention is represented is in the back in conjunction with the accompanying drawings further specified.
Fig. 1 is the vertical and horizontal sectional drawing of first embodiment of mold of the present invention with Fig. 2;
Fig. 3 is the profile along Fig. 2 III-III line;
Fig. 4 and Fig. 5 are the phantoms that second embodiment of the similar Fig. 3 of mold of the present invention is in two different operating positions;
Fig. 6 is the side view of the formpiston that uses in an embodiment.
The mold of Fig. 1 to 3 have one by two halves former 1 ', 1 " the shaped as frame former 1 that constitutes, can open during the foam midsole demoulding above-mentioned two halves former 1 ', 1 ".Shaped as frame former 1 is around a moulding formpiston 2, and it is axially packed into as the bottom of mold within the shaped as frame former 1.
The mold upward opening and by one around sealing strip clamp footwear systems part 3 hermetically, footwear system part 3 is stretched on the shoe tree 4.Having one between the upside of the inboard of the downside of footwear systems part 3, shaped as frame former 1 and shaping formpiston 2 is used for connecting on footwear system part 3 and the empty die cavity 5 of foamed sole.
Between shaped as frame former 1 and formpiston 2, be connected with a branch groove part 6, this minute, groove part 6 annular seal space 7 expansion in its side direction of leaving die cavity 5, injection channel 8 imports in the annular seal spaces 7, and in Fig. 1-3 illustrated embodiment, annular seal space 7 is formed in the inner peripheral surface 9 of axial stretching, extension of shaped as frame former 1.
At Fig. 2, see that the injection channel 8 that is arranged in mold heel of a shoe one side imports annular seal spaces 7 in 3.Injection channel 8 do not rely on as the passage 8 of introducing material for sole of shoe '.In addition, hole 10 feeds in the annular seal space 7, and hole 10 is used to reinforce groove part sealing in injected minute, and perhaps hole 10 can be used for spraying in the time should cleaning mold.
The suitable super foam material that is used for sole is polyurethanes particularly, the injection material that is used for the sealing of branch groove part preferably with last identical materials.
Connecting also on the footwear system, one group of sole of foamed at first is that injection divides the groove part encapsulant, simultaneously shaped as frame former 1 and shaping formpiston 2 are positioned at position shown in Figure 1, are subsequently to remove the small branch groove part encapsulant overlap that side by die cavity 5 enters in the die cavity 5 to realize follow-up continuous production through passage 8 ' introducings material for sole of shoe and the unite decline of part 3 of footwear on the shoe tree 4 that is stretched in subsequently until the closure of openings of mold by the open upper side of mold then.Open after the material for sole of shoe sclerosis two parts 1 of mold ', 1 ", divide the groove part sealing owing to the reinforcing in its mesopore 10 is stayed in the annular seal space 7 of shaped as frame former 1 simultaneously.
Fig. 4 to 6 represents an embodiment who has the distortion of hull shape shaping formpiston 12.Shaping formpiston 12 can be axially moves and its position of expression application position or be positioned at its application position down in Fig. 5 thereon in Fig. 4 relative to the shaped as frame former.This minute, groove part 16 was between a peripheral inner platform 21 of the peripheral end face 20 of shaping formpiston 12 and shaped as frame former 11.Figure 61 has represented a side view of shaping formpiston 12.
The generation that divides the groove part sealing by injection mould when closed through passage 18,18 ' realize (Fig. 4) to annular seal space 17 injecting sealing materials, the subsequent production of sole is to open mould (Fig. 5), the footwear of an anxiety on shoe tree are united part by the top opening of putting into shaped as frame former 11, then through passage 18 ' the introducing material for sole of shoe also makes shaping formpiston 12 move upward up to baffle plate simultaneously in die cavity 5.Escaping gas and unnecessary material for sole of shoe are drained through tap, and this tap is to be formed by the groove 123 on the shaping formpiston neighboring.In addition, annular seal space 17 is disposing the hole 10 ' (Fig. 6) that is used to reinforce the sealing of branch groove part
In the scope of the total design of the present invention, can carry out various conversion, particularly the position of the formation of annular seal space 7,17 and injection canal 8,18 to the embodiment of explanation.
Claims (5)
1, on footwear systems, connect and the mold of the sole that foamed is made of plastics, it has the shaping formpiston that maybe can enter in a shaped as frame former and this shaped as frame former of packing in this shaped as frame former, the shaped as frame former holds the bottom of nervous footwear system on a shoe tree hermetically, simultaneously, on the die cavity periphery between shaping formpiston and the shaped as frame former, walk towards a branch groove part in the position of mold closure, it is characterized in that, this minute groove part (6,16) be with injection canal (8 in its side of avoiding die cavity (5) towards one, 18) annular seal space (7,17) a branch groove part sealing that is expelled in it is held in expansion, annular seal space (7,17) with being used for fixing.
2, according to the described mold of claim 1, it is characterized in that, the shaping formpiston is the shaped as frame former of axially packing into, and annular seal space (7) is formed in the inner peripheral surface (9) of the axial trend of shaped as frame former (1), and inner peripheral surface (9) constitutes branch groove part (6) with the outer peripheral face of shaping formpiston (2).
3, according to the described mold of claim 1, shaping formpiston and shelly and axially move into the shaped as frame former, it is characterized in that, annular seal space (17) forms in the peripheral end face (20) of shaping formpiston (12), and this end face has formed branch groove part (16) with the peripheral inner platform (21) of shaped as frame formpiston (11).
4, according to the described mold of one of claim 1-3, it is characterized in that, be used for fixing or exhaustjet divides the hole (10,10 ') of groove part sealing to import in the annular seal space (7,17).
5, according to the described mold of one of claim 1-4, it is characterized in that, divide the groove part encapsulant identical with material for sole of shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114158 CN1104462A (en) | 1993-10-05 | 1993-10-05 | Casting mold for connecting and foaming plastic sole on upper of shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114158 CN1104462A (en) | 1993-10-05 | 1993-10-05 | Casting mold for connecting and foaming plastic sole on upper of shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1104462A true CN1104462A (en) | 1995-07-05 |
Family
ID=4990411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93114158 Pending CN1104462A (en) | 1993-10-05 | 1993-10-05 | Casting mold for connecting and foaming plastic sole on upper of shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1104462A (en) |
-
1993
- 1993-10-05 CN CN 93114158 patent/CN1104462A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |