CN1478649A

CN1478649A - Manufacturing method and mould of multicolour one step foaming and shaping shoe body

Info

Publication number: CN1478649A
Application number: CNA021319855A
Authority: CN
Inventors: 田瑞渊; 许文生
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-29
Filing date: 2002-08-29
Publication date: 2004-03-03

Abstract

A technology for making the multi-color foamed shoe by foaming in mould once includes such steps as cutting raw materials to become the needed sheets of a shoe, cutting the coloring materials, putting them in mould, closing mould, vacuumizing, foaming and demoulding. Said mould is composed of upper and lower moulding.

Description

The method for making of multicolour one step foaming shaping shoe body and mould

(1) technical field

The method for making and the mould of the relevant a kind of multicolour one step foaming shaping shoe body of the present invention.

(2) background technology

(at this is the end in the general reference big end of footwear or the footwear for general being seen footwear body, slippers, or the big end of footwear, add the end in the footwear), via foaming generally is to be " single look " moulding, mostly the changes colour mode is the pattern transferring color or fits once more, therefore with the passing of time promptly can fade, can not present special texture; Vertical have one-body molded and have the footwear body of different colours, it is color lump with Decorative shoes body color, in advance according to the other hardened forming of particular mold, take out after the moulding, insert in the mould again, add the unfoamed material of footwear body and foaming together, allow the expanded material of footwear body through hot pressing and one-body molded with color lump.But this kind method for making needs the post forming flow process, if the color of color lump is different, even needs three flow processs of moulding, and is quite consuming time, and the normal entrained air of foamed forming process, causes the thick quality of hole, and the texture of quality can't significantly promote.

(3) summary of the invention

Main purpose of the present invention provides a kind of method for making and mould of multicolour one step foaming shaping shoe body, make the footwear body can just can moulding via the one step foaming flow process with polychrome, and in method for making, vacuumize flow process in the preceding design of foaming not, avoid air to be entrained in foaming process, guarantee the body formed quality densification of polychrome footwear.

Another object of the present invention provides a kind of method for making and mould of multicolour one step foaming shaping shoe body, make polychrome footwear body that the color lump of one different colours be arranged at desired location, the counterdie of mould is provided with the partition wall that separates, allow the raw material of color lump place in the partition wall, the raw material of footwear body place outside the partition wall, allow not colour mixture of moulding quality.

For further specifying purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is a schematic flow sheet of the present invention.

Fig. 2 is counterdie of the present invention and material three-dimensional exploded view.

Fig. 3 is the floor map of looking closely that material of the present invention is inserted mould in advance.

Fig. 4 is that mould of the present invention is prepared the floor map of looking closely that vacuumizes.

Fig. 5 is the floor map that mould mold closing of the present invention is prepared moulding.

Fig. 6 is the floor map of foaming of the present invention.

Fig. 7 is mould die sinking of the present invention and shows the floor map that footwear are body formed.

Fig. 8 is a upper viewing view of making a kind of example of footwear body of the present invention.

Fig. 9 is the mould enforcement floor map that other plants the footwear body of making of the present invention.

Figure 10 is a floor map of making the footwear volume morphing according to Fig. 9 of the present invention.

(5) specific embodiment

The invention relates to a kind of method for making and mould of multicolour one step foaming shaping shoe body, please will specify method for making flow process of the present invention and applied die device below earlier referring to Fig. 1 and 2.

Method for making flow process of the present invention may further comprise the steps:

A: get the raw materials ready: raw material are the prototype materials that foam for not, can be according to characteristic, hardness demand and mutually allotment, such as placing the kneader banburying, be thin slice through roll forming again, cooled off thereupon, furl into coiled material through the automatic coiling machine again, be that automatic cutting machine is through being cut into required flaky material subsequently, and cut out the footwear body sheet stock 10 that sets out shoe-shaped respectively according to color and shape, what be different from footwear body sheet stock 10 colors sews colorant 20, footwear body sheet stock 10 is in addition when sanction is set as type, according to sewing colorant 20 arrangements place, be provided with one in footwear body sheet stock 10 and allow hole 12, allow hole 12 internal ranges greater than sewing colorant 20;

B: insert mould: mould design form such as Fig. 2, shown in 3, mould includes a patrix 40 and and is relative counterdie 30 with patrix 40, on,

counterdie

40,30 have the die cavity 41 of two corresponding shoe-shapeds, 31, counterdie 30 basis on die cavity 31 is sewed colorant 20 placements, stretch the upright ring plate shape partition wall 32 that sets firmly, it in the partition wall 32 the interior cave 321 of sewing colorant 20 for ccontaining, interior cave 321 openings are towards patrix 40, counterdie 30 is arranged with caulking groove 33 one in addition on around this outside to die cavity 31, in order to the seal 34 of setting-in one falope ring kenel, allow seal 34 end faces be standing shape than counterdie 30 surfaces; Use footwear body sheet stock 10 and sew colorant 20 and place die cavity 31 and interior cave 321 respectively, the hole 12 that allows of footwear body sheet stock 10 is a bit larger tham partition wall 32, footwear body sheet stock 10 can paste according to die cavity 31 forms to be put, then can stack several pieces does not again dig to be provided with and allows the entity shape footwear body sheet stock 14 in hole 12, footwear body sheet stock 14 sealing allows the opening in hole 12, towards patrix 40 die cavitys 41 (shown in the imaginary line of Fig. 3), or a specific thicknesses footwear body sheet stock 10 is placed in the footpath, this footwear body sheet stock 10 one sides be arranged with this one be do not run through allow hole 12, allowing footwear body sheet stock 10 that one side is arranged is sealing surface, the opening of capping partition wall 32 tops, base 36 1 sides of counterdie 30 bottoms are installed with a positioning rod 361, aforementioned patrix 40 is to be fixed on the body 45, body 45 1 sides are provided with a corresponding backstay 361, and can adjust the inductive switch 46 of upper-lower position, and inductive switch 46 is such as being electric eye, patrix 40 connects one by the vacuum tube 42 that is connected in evacuator, is provided with the pore 43 of opening towards counterdie 30 in vacuum tube 42 appropriate locations that communicate on the patrix 40;

C: vacuumize: as Fig. 2, shown in 4, when footwear body sheet stock 10 with sew colorant 20 and insert counterdie 30 after, driving counterdie 30 moves towards patrix 40, when backstay 361 1 arrives inductive switch 46 positions, inductive switch 46 bar 361 that is positioned covers and sends the signal that blocking-up counterdie 30 rises, make counterdie 30 stop, this halted state allows seal 34 apical margins just against patrix 40 corresponding end faces exactly, this moment, seal 34 was uncompressed state, patrix 40 does not touch footwear body sheet stock 10, allow by seal 34,

counterdie

40,30

die cavity

41,31 form a confined space, inductive switch 46 makes counterdie 30 stop on the one hand, the aspect starts evacuator synchronously in addition, to pass through vacuum tube 42, pore 43 and to vacuumizing in the die cavity 3141;

D: closed moulding: as Fig. 5,6, behind setting-up time, vacuumize and stop, inductive switch 46 makes counterdie 30 continue to rise, allow,

counterdie

40,30 form closely connected shape because of compression seal 34, inductive switch 46 was sent again and was stopped counterdie 30 risings this moment, and send the signal of preparing hot pressing, through pressurized, heated, the temperature conditions of heating is 150～200 ℃, be 6 minutes～15 minutes heat time heating time, allow footwear body sheet stock 10 with sew colorant 20 foaming and intumescing moulding, since footwear body sheet stock 10 with sew colorant 20 and all belong to the same material characteristic, so in the pressurized that is heated, must combine together mutually, and footwear body sheet stock 10 allow hole 12 be subjected to temperature and pressure causes expansion, allow footwear body sheet stock 10 with sew colorant 20 and approach mutually and then combine together, owing to before foaming, vacuumize at die cavity 3141 in advance, thereby can not cause thick foaming hole with sewing colorant 20 air entrainments during foaming, keep hole small and the careful moulding quality of texture arranged at footwear body sheet stock 10;

E: die sinking finished product: as shown in Figure 7, after the foamed solidification moulding, drive that counterdie 30 descends and with patrix 40 demouldings, promptly form complete footwear body 50, footwear body 50 is to form color lump 55 sewing colorant 20 positions, reference diagram as shown in Figure 8, other color of clear branch allows footwear body 50 represent different elegances.

Same method, the present invention also can represent the footwear body of different color form, as Fig. 9, shown in 10, counterdie 30 can be provided with partition wall 32, on the die cavity 31 of counterdie 30, spill put multiple color and in pelletized form sew colorant 25, sewing colorant 25 was thin slice originally, through baking one softness is arranged, and will be ground into little bulk material, on die cavity 31, settle footwear body sheet stock 10 subsequently, allow footwear body sheet stock 10 light pressures sew colorant 20, continue again and vacuumize, after the closed moulding flow process, will make the footwear body 52 of in riotous profusion color as shown in figure 10, because the pressure and the temperature of moulding, allow the granular colorant 25 of sewing be extruded diffusion and be blended in the footwear body sheet stock 10, sewing colorant 25 is irregular left-falling stroke and spills shape, the tear shape, point-like or the like, just like being blended on the footwear body 52 as the impressionist strokes and dots, show brisk outstanding form, bring up very novel product visual impression.Certainly, the present invention also can spill on Fig. 2 is provided with the die cavity 31 of partition wall 32 and sew colorant 25, allows the footwear body have both Fig. 8 is arranged, two kinds of color moulding characteristics of 10.

Through the above, the invention provides following breakthrough excellent effect:

1. the present invention is provided with partition wall on mould, places to sew colorant when foaming in the partition wall, and circumferential lateral surface can not touch footwear body sheet stock, allow this footwear body with color lump not only can the one step foaming moulding, and can there be the colour mixture shortcoming between color lump and the footwear body, best in quality, simple clean.

2. the present invention is provided with seal especially on counterdie, when the seal by counterdie contacts with patrix, form a confined space that is vacuumized, allow the environment of foaming through vacuumizing, do not have the anxiety air and enter foaming process and cause the thick shortcoming of hole, make the moulding quality fine and close and have more the sense of worth of high art.

3. method for making of the present invention, allow the footwear body the have heterogeneity of arbitrarily spilling look as shown in figure 10, irregular polychrome form increases the color performance of diversified footwear body colour.

Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.

Claims

1. the method for making of a multicolour one step foaming shaping shoe body is characterized in that, this method for making flow process comprises:

A: get the raw materials ready: the standby not raw material of foaming as footwear body sheet stock, and standby and footwear body sheet stock different colours sew colorant;

B: insert mould: with footwear body sheet stock with sew on the counterdie that colorant places mould respectively, patrix connects vacuum tube;

C: vacuumize: footwear body sheet stock with sew colorant and insert counterdie after, drive counterdie and move towards patrix, allow the confined space shape that forms a vacuum-pumping between the upper and lower mould surface, vacuumize;

D: closed moulding: stop to vacuumize, counterdie and patrix closed and allow footwear body sheet stock, sew colorant in upper and lower foam-in-mould moulding, allow footwear body sheet stock with sew colorant and merge one, after die sinking, promptly make finished product.

2. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 1, it is characterized in that, these raw material can be according to characteristic, hardness demand and mutually allotment, to allocate material and place the kneader banburying, be thin slice through roll forming again, cooled off thereupon, furl into coiled material through the automatic coiling machine again, be that automatic cutting machine is through being cut into required flaky material subsequently, cut out the footwear body sheet stock that sets out shoe-shaped respectively according to color and shape, the colorant of sewing that is different from footwear body sheet stock color, this footwear body sheet stock are when sanction is set as type, according to sewing colorant arrangement place, on footwear body sheet stock, dig and establish one and allow the hole, allow the hole scope greater than sewing colorant.

3. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 1 is characterized in that, this patrix connection one is connected in the vacuum tube of evacuator, is provided with the pore of opening towards counterdie in the vacuum tube appropriate location that communicates on the patrix.

4. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 1 is characterized in that, the temperature conditions during this foaming is 150～200 ℃, and be 6 minutes～15 minutes heat time heating time.

5. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 2 is characterized in that, this sews the footwear body finished product of colorant after making is the color lump shape.

6. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 5, it is characterized in that, this is block and sews between colorant and the footwear body sheet stock week side on counterdie that formation is at least one to have a partition wall that separates shape, and footwear body sheet stock correspondence is avoided the partition wall scope and formed and allow the hole.

7. the method for making of multicolour one step foaming shaping shoe body as claimed in claim 1 is characterized in that, in this flow process of getting the raw materials ready, sewing colorant is that soft granular spilling places on the counterdie, and confession footwear body sheet stock is gently pressed above sewing colorant and is contact in conjunction with shape.

8. the mould of a multicolour one step foaming shaping shoe body, it is characterized in that, include a patrix and and be relative counterdie with patrix, upper and lower mould respectively is provided with and is the die cavity that corresponds to shoe-shaped mutually, counterdie is stretched upright at least one ring plate shape partition wall that sets firmly on die cavity, be made as the interior cave of an opening towards patrix in the partition wall, counterdie is provided with an annular seal in the outer survey around die cavity, and the seal end face is surperficial outstanding than counterdie.

9. the mould of multicolour one step foaming shaping shoe body as claimed in claim 8 is characterized in that, this patrix connects a vacuum tube that is connected in evacuator, is communicating vacuum tube and be provided with the pore of opening towards counterdie relatively in the seal scope on the patrix.

10. the mould of multicolour one step foaming shaping shoe body as claimed in claim 8, it is characterized in that, base one side of this counterdie bottom is installed with a positioning rod, and this patrix is fixed on the body, and body is provided with a corresponding backstay and can adjusts the inductive switch of upper-lower position.