CN109878123A - A kind of sole connection side injection molding composite module and application thereof - Google Patents
A kind of sole connection side injection molding composite module and application thereof Download PDFInfo
- Publication number
- CN109878123A CN109878123A CN201910208334.0A CN201910208334A CN109878123A CN 109878123 A CN109878123 A CN 109878123A CN 201910208334 A CN201910208334 A CN 201910208334A CN 109878123 A CN109878123 A CN 109878123A
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- locating piece
- mold frame
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- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 238000001746 injection moulding Methods 0.000 title claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 53
- 239000007924 injection Substances 0.000 claims abstract description 53
- 238000010276 construction Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 20
- 238000005187 foaming Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000005304 joining Methods 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 description 34
- 238000005266 casting Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229920005983 Infinergy® Polymers 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
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- 239000002245 particle Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 241000028631 Microstomus pacificus Species 0.000 description 1
- 241000269978 Pleuronectiformes Species 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present invention provides a kind of for joining the ETPU composite module at side injection moulded shoes bottom, including at least having left module independent and right mould block, the lateral surface of the left module is equipped with the first injection mold frame locating piece, the lateral surface of the right mould block is equipped with the second injection mold frame locating piece, and the first injection mold frame locating piece is opposite with the second injection mold frame positioning Block direction.The present invention further provides a kind of side injection molding footwear sole construction, safety shoe and its connection side injection moulding process.A kind of sole connection side provided by the invention injection molding composite module and application thereof, the shoes that sole is integrally formed with ETPU and PU can be obtained, simple process, it is easy to operate, low in cost, ensure quality, while there are the excellent properties of ETPU and PU, there is extraordinary application prospect.
Description
Technical field
The invention belongs to the technical fields of shoemaking, are related to a kind of sole connection side injection molding composite module and application thereof, specifically
It is related to a kind of for joining the ETPU composite module for helping injection moulded shoes bottom, connection side injection molding footwear sole construction, safety shoe and its ETPU and PU mono-
Body formed connection helps injection moulding process.
Background technique
Shoes are a kind of tools that people protect the foot against wound, and earliest people do not allow foot to feel bad to overcome special circumstances
Or it is injured, fur shoes are just invented, shoes till now, form various patterns function.Safety shoe is security classes shoes
With protection class shoes general designation, refer generally to different operating occasion wear have protect foot and leg from foreseeable injury
Footwear.Safety shoe belongs to the footwear of high technology content and high added value, and production process is to raw material, auxiliary material, change
The requirement of material, mechanical equipment etc. is all very high.
Important component of the sole as shoes, the level of comfort of shoes dress directly have with the softness of sole, rebound
Important relationship, sole material number is made using the foaming of the raw materials such as EVA, PU currently on the market.Wherein, PU is that casting type is poly-
Urethane elastomer (abbreviation CPU), in the environment of extremely low temperature or very high temperature after use, material is hardened the footwear material, and elasticity is poor, leads
Cause dress uncomfortable.Therefore, it is badly in need of selecting new footwear material, makes more comfortable sole.
E-TPU polyurethane thermal-plastic expanded beads (abbreviation ETPU or ETPU particle) are a kind of wear-resisting, tear-resistant thermoplastic bullets
Elastomer material exclusively initiates technique derived from the German BASF whole world, and after pressurized, heated pre-processes, every every particle image is quick-fried
Popped rice equally expands, in this process the particle of original 0.5 millimeter or so size, and volume will increase by 10 times, then
The non-crosslinked expanded beads of ellipse containing miniature encapsulated bubble are formed, ETPU type is like " puffed rice ".E-TPU can effectively increase shoes
Bottom it is light, high-elastic.
Currently, common sole connection side injection molding production method, is footwear material to be directly injected into framed, then pass through heating compacting
Molding, during using E-TPU to make connection side injection moulded shoes bottom as footwear material, before being poured PU bottom material, E-TPU layers of loading are framed
Physical location can not detect, can only be poured foaming after the completion of just can determine that, so as to cause prior art high rejection rate, thus at
This abnormal height.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of soles to join side injection molding combination
Module and application thereof, the connection side injection molding footwear sole construction for solving to lack E-TPU layers of accurate positioning, high yield rate in the prior art
The problem of.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of for joining side injection moulded shoes bottom
ETPU composite module, including at least having left module independent and right mould block, the lateral surface of the left module is equipped with the first note
The lateral surface of mold frame locating piece, the right mould block is equipped with the second injection mold frame locating piece, the first injection mold frame locating piece
It is opposite with the second injection mold frame positioning Block direction.
Preferably, the ETPU composite module further includes selected from following any feature:
1) be positioned at injection molding it is framed after, the left module and right module contact are spliced to form ETPU layers of sole；
2) between the left module and right mould block be equipped with intermediate module, be positioned at injection molding it is framed after, the left module with
Right mould block and intermediate module contact are spliced to form ETPU layers of sole.
Second aspect of the present invention provides a kind of side injection molding footwear sole construction, the sole body including PU, the sole body
In include above-mentioned ETPU composite module formed ETPU layers of sole.
Preferably, described sole ETPU layers be located at sole heelpiece regions and/or heel area in partly or entirely.
Third aspect present invention provides a kind of safety shoe, including upper of a shoe and above-mentioned side are molded footwear sole construction.
Fourth aspect present invention provides a kind of integrally formed side injection moulding process of ETPU and PU, including the following steps:
A the shoe tree with upper of a shoe) is put into framed middle locking, by the left module and right mould in above-mentioned ETPU composite module
Block positions in framed respectively, then each module of ETPU composite module described in assembly, forms sole ETPU layers；
B it) is poured PU bottom material, PU bottom material is demoulded after shoes foam-in-mould is at solid, is had
The shoes at the PU connection side injection moulded shoes bottom of ETPU.
Fifth aspect present invention provides above-mentioned ETPU composite module or above-mentioned side injection molding footwear sole construction and joins side note in preparation
Mould the purposes in sole.
As described above, a kind of sole connection side provided by the invention injection molding composite module and application thereof, by the way that one kind is arranged
ETPU composite module, and help to be molded ETPU layers of sole formed in footwear sole construction in connection, then be poured PU bottom material, can be had
ETPU and PU is integrally formed the shoes of sole.Composite module, footwear sole construction and connection side injection moulding process provided by the invention, it is particularly suitable
In the production of safety shoe, not only simple process, easy to operate, but also can ensure sole quality, technique rejection rate is low, at low cost
It is honest and clean, so that product shoes is had the light, high-elastic of ETPU thermoplastic elastomer, and have the bonding of the light of PU polyurethane and casting one
Power has extraordinary application prospect.
Detailed description of the invention
Fig. 1 is shown as the stereoscopic schematic diagram of the partition structure of ETPU composite module in the present invention.
Fig. 2 is shown as the floor map of the composite structure of ETPU composite module in the present invention.
Fig. 3 is shown as the stereoscopic schematic diagram of the composite structure of ETPU composite module in the present invention.
Fig. 4 is shown as left module or the side structure schematic diagram of right mould block in the present invention.
Fig. 5 is shown as left module or the schematic perspective view of right mould block in the present invention.
Fig. 6 is shown as the side structure schematic diagram of footwear sole construction in the present invention.
Fig. 7 is shown as the top view of footwear sole construction in the present invention.
Appended drawing reference
1 ETPU composite module
11 left modules
111 first injection mold frame locating pieces
12 right mould blocks
121 second injection mold frame locating pieces
13 intermediate modules
14 PU runners
2 is framed
21 heelpiece regions
22 heel areas
The length of a1 intermediate module
The height of a2 intermediate module
The length of the left module of b1 or right mould block
The height of the left module of b2 or right mould block
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Fig. 7.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
As shown in Figs. 1-5, the present invention provides a kind of for joining the ETPU composite module 1 at side injection moulded shoes bottom, including at least having
The lateral surface of left module 11 independent and right mould block 12, the left module 11 is equipped with the first injection mold frame locating piece 111, institute
The lateral surface for stating right mould block 12 is equipped with the second injection mold frame locating piece 121, the first injection mold frame locating piece 111 and the second note
121 directions of mold frame locating piece are opposite.
The thickness of left module 11 and right mould block 12 in the lateral direction judges whether it is correctly installed on calmly can estimate
Subject to during position is framed.5cm be can be hereinafter, such as 0.5-1.5cm, 1.5-2.5cm, 2.5-3.5cm, 3.5-4.5cm, 4.5-
5cm etc..Preferably, in 3cm hereinafter, it is further preferred that in 1.5cm or less.
The height b2 of the left module 11 and/or right mould block 12 is generally no greater than framed 2 height.
In a specific embodiment, after being positioned at framed the 2 of injection molding, the left module 11 is contacted with right mould block 12
It is spliced to form ETPU layers of sole.The left module 11 is spliced with right mould block 12 through opposite inside face contact.It is close between the two
Contact splicing, to form ETPU layers of sole.
In embodiment as shown in Figs. 1-3, intermediate module 13 is equipped between the left module 11 and right mould block 12, it is fixed
Behind framed the 2 of injection molding, the left module 11 is contacted with right mould block 12 and intermediate module 13 is spliced to form ETPU layers of sole.
Left module 11, right mould block 12 i.e. in ETPU composite module 1, intermediate module 13, it is not only detachable but also sliceable, it uses
It is convenient, flexible.
Specifically, the intermediate module 13 includes one or more.Wherein, it is passed through between the adjacent intermediate module 13
Opposite flank contact splicing.Splicing is in close contact between intermediate module 13, to form ETPU layers of sole of core.
As Figure 2-3, spelling is contacted between the medial surface of the left module 11 and the opposite flank of adjacent intermediate module 13
It connects, contacts splicing between the medial surface of the right mould block 12 and the opposite flank of adjacent intermediate module 13.It is close between each module
Contact splicing, to form ETPU layers of sole.
In a feasible embodiment, the left module 11 and right mould block 12 are in long strip, thus with fudger profile
Shape is consistent.
The shape of the intermediate module 13 can be one of cuboid or square or their analogous shape.Example
Such as, the front end two sides corner of the intermediate module 13 be in arc-shaped, with left module 11, right mould block 12 splice when, can in order to
Left module 11, right mould block 12 are in close contact splicing.
Preferably, the length a1 of the intermediate module 13 is no more than the left module 11 and/or the length b1 of right mould block 12.
Preferably, the height a2 of the intermediate module 13 is no more than the left module 11 and/or the height b2 of right mould block 12.
In embodiment as Figure 2-3, the height a2 of the intermediate module 13 and the left module 11 and/or right mould block 12
Height b2 is equal.
In a feasible embodiment, as shown in figures 1 and 3, one or more can be equipped on the ETPU composite module 1
A PU runner 14.
Specifically, the setting position of the PU runner is selected from following one or more:
B1) the PU runner is set on intermediate module and runs through intermediate module；
B2) the PU runner is set to interval of the left module between adjacent first injection mold frame locating piece；
B3) the PU runner is set to interval of the right mould block between adjacent second injection mold frame locating piece.
ETPU layers of lower section of sole are flowed to convenient for PU bottom material.
In a preferred embodiment, as shown in Figs. 1-5, the first injection mold frame locating piece 111 or the second injection molding
Framed locating piece 121 sets one or more.To with the exposed effect of bulk that various shapes and quantity are formed on fudger exterior feature.
In a preferred embodiment, as shown in Figs. 1-5, the first injection mold frame locating piece in the left module 11
111 is symmetrical with the second injection mold frame locating piece 121 on right mould block 12.Thus in the shoe making process, in sole two sides
The exposed effect of ETPU is realized symmetrical.
In a preferred embodiment, as shown in figs. 1-7, it is protected between the adjacent first injection mold frame locating piece 111
Interval is held, keeps interval between the adjacent second injection mold frame locating piece 121.
In a preferred embodiment, as shown in figs. 1-7, the first injection mold frame locating piece 111 or the second injection molding
Framed 121 outwardly convex of locating piece.To realize the good exposed effect in the ETPU locating piece at the multiple intervals of side of the sole.
In a preferred embodiment, as shown in fig. 7, framed the 2 of the injection moulded shoes bottom injection molding of connection side determine equipped with ETPU layers
ETPU layer in the shape and framed 2 of position frame, the first injection mold frame locating piece 111 or the second injection mold frame locating piece 121
Posting matching.
In a preferred embodiment, as seen in figs. 5-6, the first injection mold frame locating piece 111 or the second injection molding
The shape of framed locating piece 121 is irregular shape or regular shape.Specifically, as seen in figs. 5-6, first injection mould
The shape of frame locating piece 111 or the second injection mold frame locating piece 121 is selected from one of polyhedron or rotary body or multiple combinations.
Wherein, the polyhedron is regular polygon, specific such as square, cuboid, positive tetrahedron, preferably rectangular under normal circumstances
Body.The rotary body is cylinder, circular cone or rotary table.Different shape modification, tool are carried out convenient for the locating piece exposed section of side of the sole
The different shape effect for having splendid ETPU side of the sole exposed.
In a preferred embodiment, as shown in fig. 7, the present invention provides a kind of side injection molding footwear sole construction, including PU
Sole body, include ETPU layers of sole that above-mentioned ETPU composite module 1 is formed in the sole body.Footwear sole construction letter
Single, rejection rate is low, low in cost, the sole of ETPU and PU one can be prepared, so that product shoes be made to have ETPU thermoplastic bullet
Property body it is light, high-elastic, and have the light of PU polyurethane and casting one bonding force.
Further, as shown in fig. 7, the described sole ETPU layers heelpiece region 21 for being located at sole and/or heel area 22
In partly or entirely.Wherein, it is preferably placed in the heel area 22 of sole for described sole ETPU layers, it is more to can be realized side of the sole
The good exposed effect of the ETPU locating piece at a interval.
In a preferred embodiment, as shown in fig. 7, the present invention provides a kind of safety shoe, including upper of a shoe and above-mentioned
Side injection molding footwear sole construction.
Below with reference to Fig. 1-7, illustrate a kind of using for the integrally formed side injection moulding process of ETPU and PU in the present invention
Journey.
User obtains a kind of side as shown in Figure 7 and is molded footwear sole construction, and the shoe tree with upper of a shoe is put into injection molding
Framed 2, then framed 2 fixed locking, then by ETPU composite module 1 left module 11 and right mould block 12 position framed 2 respectively
In.Since ETPU layer of the invention is to be combined by composite module, rather than be integrally formed, whether simple range estimation can determine locating piece
Correct playback solves integrated ETPU layer before carrying out PU foaming or when foaming can not be detected and confirm what whether it correctly playbacked
Defect, when guaranteeing that ETPU composite module 1 forms sole ETPU layer, casting foaming complete it is preceding just can determine that ETPU layers of sole in mould
Physical location in frame 2, so that rejection rate is low after the completion of guaranteeing casting foaming.
Each module in assembled ETPU composite module 1, when there is only left modules 11 and right mould block 12 in ETPU composite module 1
When, left module 11 is spliced with right mould block 12 through opposite inside face contact, and assembly forms sole ETPU layers in framed 2；When
When ETPU composite module 1 includes intermediate module 13, intermediate module 13 is squeezed to left module 11 and right mould block 12, intermediate die
Block 13 can be one or more, contact and splice through opposite flank between adjacent intermediate module 13, the medial surface and phase of left module 11
Splicing, the opposite flank of the medial surface of right mould block 12 and adjacent intermediate module 13 are contacted between the opposite flank of adjacent intermediate module 13
Between contact splicing, assembly in framed 2 formed sole ETPU layers.
PU bottom material is poured into framed 2, and hot pressing will be carried out after framed 2 closure, hot pressing is that bed die is pressed in framed 2
On, PU bottom material from liquid in shoes foam-in-mould at solid, demould to get the PU connection side injection moulded shoes bottom obtained with ETPU
Shoes.The curing time of the foaming is 250-350 seconds, preferably 300s.The material of ETPU composite module 1 is E-TPU polyurethane
Thermoplastic expanded beads (abbreviation ETPU or ETPU particle).PU bottom material is PU polyurethane elastomer (abbreviation CPU).PU with ETPU
The two sides exterior feature at connection side injection moulded shoes bottom is partly or entirely exposed respectively the first injection mold frame locating piece 111 and the second injection mold frame
Locating piece 121.
The above-mentioned shoe tree with upper of a shoe is the conventional use of shoe tree with upper of a shoe in shoe-making field.Above-mentioned shoes mould is shoemaking
Conventional use of sole shoes mould in field has generally included shape, of the same size framed 2 and bed die.Above-mentioned framed 2 include shoes
Slap region 21 and heel area 22.
As it can be seen that due to ETPU layers of block design, on the one hand each module with the posting being arranged on framed 2 by matching
Mode, so that this kind of ETPU composite module 1 and connection side injection molding footwear sole construction, just can determine that sole before casting foaming is completed
The ETPU layers of physical location in framed 2, so that rejection rate is low after the completion of guaranteeing casting foaming, especially suitable for federation's injection molding peace
The production of full shoes.
So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of sole connection helps injection molding ETPU composite module, which is characterized in that including at least there is left module independent
(11) and right mould block (12), the lateral surface of the left module (11) are equipped with the first injection mold frame locating piece (111), the right mould block
(12) lateral surface is equipped with the second injection mold frame locating piece (121), the first injection mold frame locating piece (111) and the second injection molding
Framed locating piece (121) direction is opposite.
2. a kind of sole connection according to claim 1 helps injection molding ETPU composite module, which is characterized in that further include choosing
From following any feature:
1) after being positioned at framed (2) of injection molding, the left module (11) contacts with right mould block (12) is spliced to form ETPU layers of sole；
2) intermediate module (13) are equipped between the left module (11) and right mould block (12), after being positioned at framed (2) of injection molding, institute
It states left module (11) and is contacted with right mould block (12) and intermediate module (13) and be spliced to form ETPU layers of sole.
3. a kind of sole connection according to claim 2 helps injection molding ETPU composite module, which is characterized in that the centre
Module (13) includes one or more.
4. a kind of sole connection according to claim 1 helps injection molding ETPU composite module, which is characterized in that under further including
One or more of column feature:
A1 one or more PU runner (14)) can be equipped on the ETPU composite module (1)；
A2) the first injection mold frame locating piece (111) or the second injection mold frame locating piece (121) set one or more；
A3) the first injection mold frame locating piece (111) on the left module (11) and the second injection mold frame on right mould block (12)
Locating piece (121) is symmetrical；
A4) the first injection mold frame locating piece (111) or second injection mold frame locating piece (121) outwardly convex；
A5) framed (2) of connection side injection moulded shoes bottom injection molding are equipped with ETPU layers of posting, the first injection mold frame locating piece
(111) or the second injection mold frame locating piece (121) shape is matched with the ETPU layer posting in framed (2)；
A6) thickness of left module (11) and right mould block (12) in the lateral direction is in 3cm hereinafter, more preferably in 1.5cm or less.
5. a kind of side is molded footwear sole construction, which is characterized in that the sole body including PU includes by weighing in the sole body
Benefit requires ETPU layers of sole that 1~4 any ETPU composite module (1) is formed.
6. a kind of side according to claim 5 is molded footwear sole construction, which is characterized in that described sole ETPU layers are located at shoes
Some or all of in the heelpiece region (21) at bottom and/or heel area (22).
7. a kind of safety shoe, which is characterized in that including any connection side injection molding footwear sole construction of upper of a shoe and claim 5~6.
8. a kind of ETPU and PU integrally formed sole connection side injection moulding process, including the following steps:
A the shoe tree with upper of a shoe) is put into framed middle locking, it will be in any ETPU composite module of Claims 1 to 4
Left module and right mould block position in framed respectively, then each module of ETPU composite module described in assembly, form sole ETPU layers；
B it) is poured PU bottom material, demoulds PU bottom material after shoes foam-in-mould is at solid, is obtained with ETPU
The shoes at PU connection side injection moulded shoes bottom.
9. the integrally formed side injection moulding process of a kind of ETPU and PU according to claim 8, which is characterized in that further include
It is one or more in following features:
B1) in step B), the curing time of the foaming is 250-350 seconds；
B2) in step B), the two sides exterior feature at the PU connection side injection moulded shoes bottom with ETPU is partly or entirely exposed respectively to be had
First injection mold frame locating piece and the second injection mold frame locating piece.
10. ETPU composite module according to any one of claims 1 to 4 is helped according to any connection of claim 5~6
It is molded footwear sole construction and joins the purposes in side injection moulded shoes bottom in preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208334.0A CN109878123B (en) | 2019-03-19 | 2019-03-19 | Combined module for sole upper-connecting injection molding and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208334.0A CN109878123B (en) | 2019-03-19 | 2019-03-19 | Combined module for sole upper-connecting injection molding and application thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109878123A true CN109878123A (en) | 2019-06-14 |
| CN109878123B CN109878123B (en) | 2024-02-23 |
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| CN109878123B (en) | 2024-02-23 |
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