CN1785645A - Manufacturing method of 1:1 rubber mould internal foamed rubber base - Google Patents
Manufacturing method of 1:1 rubber mould internal foamed rubber base Download PDFInfo
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- CN1785645A CN1785645A CN 200410097586 CN200410097586A CN1785645A CN 1785645 A CN1785645 A CN 1785645A CN 200410097586 CN200410097586 CN 200410097586 CN 200410097586 A CN200410097586 A CN 200410097586A CN 1785645 A CN1785645 A CN 1785645A
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Abstract
A foaming-in-mould method for preparing rubber sole includes such steps as mixing raw materials, pugging while adding physical foaming agent, cutting to obtain the blanks with predefined shape and color, putting two blanks with different colors in a mould, and foaming. Its advantages are no shrinkage so allowing that the ratio of sole size to mould cavity size is 1:1, and no need of cooling for fixating shape.
Description
Technical field
The present invention relates to method for making at the bottom of a kind of glue, particularly relates to a kind of processing procedure method for making fast and at the bottom of the glue of high 1: 1 rubber foam-in-mould of finished product yield.
Background technology
General shoes are in order to have good buffering and shock preventing ability; usually can use the rubber material to be made into sole; because shoes are more done design towards lightweight; therefore at present the dealer can adopt the foaming processing procedure to make finished product at the bottom of the glue usually; see also shown in Figure 1ly, the method for making of ordinary rubber foaming mainly is through the following step:
(1). the preliminary mixing: at first be ready to raw material, include rubber raw materials, filler and other processing aid, put into a kneader and break into a blend glue stuff, place storage after crossing water cooling.
(2). add chemical blowing agent: after blend glue stuff is utilized a Luntai to thin to mix 2 ~ 3 times, add a bridging agent and a chemical blowing agent again, and continue to thin and mix 2 ~ 3 times, place storage after crossing water cooling.
(3). inject sizing material: the above-mentioned sizing material for preparing is injected in the die cavity of a mould.
(4). hot-forming: as after then configuring time and temperature, to make sizing material foaming in mould to mold heated.
(5). room temperature was placed 24 hours: can take out half finished product after the demoulding, the volumetric expansion because foam of these semi-finished product is placed semi-finished product at room temperature 24 hours earlier.
(6). put into baking oven and shrank typing in 2 hours: the baking oven of then again semi-finished product being put into 75 ℃ of temperature toasts, and makes semi-finished product begin to shrink and finalizes the design about 2 hours of time.
(7). room temperature was placed 24 hours: take out these semi-finished product in baking oven after, place cooling at room temperature again, about 24 hours of time.
(8). finished product at the bottom of the glue.
Though above-mentioned processing procedure can reach the function of rubber pange, but the employed blowing agent of ordinary rubber foaming processing procedure is to belong to chemical blowing agent, when sizing material when finishing the hot pressing demoulding, volume can promptly expand, cause the product size ratio to change, therefore the employed mould of general foaming processing procedure, its die cavity shape is normally done to dwindle with predetermined ratio according to the size of actual product, make rubber size behind foaming and intumescing be unlikely excessive, the means of utilizing cooling to shrink are finalized the design to the size of original design again, yet this kind foaming contraction change, finished product is easily because size differs at the bottom of the glue of making at last, cause the product fraction defective higher, the manufacturing cost cost also can improve, and ordinary rubber foaming processing procedure needs long-time program of doing to shrink typing more than two days, the whole processing procedure time is quite tediously long, be not inconsistent economic benefit, if the dealer need make the product of other size shape again, mould also will be along with replacing, be accompanied by the difference of die cavity planform, the prescription composition of blowing agent also needs to remodify, and the foaming degree of product could obtain control, and more trouble seems in the operation.
Summary of the invention
The object of the invention be to provide a kind of can significantly shorten the processing procedure time and have the glue of 1: the 1 rubber foam-in-mould that promotes finished product yield effect at the bottom of method for making.
The invention provides method for making at the bottom of the glue of a kind of 1: 1 rubber foam-in-mould, its feature comprises the following step: (1). the preliminary mixing, measure sizing material, filler and the processing aid of predetermined ratio, above-mentioned raw materials inserted in the kneader mix dnockout, after setting the time and temperature of predetermined dnockout, the blanking cooling becomes a blend glue stuff; (2). add physical foaming agent, takes out an amount of blend glue stuff and thin on a Luntai, and after the bridging agent, physical foaming agent and the coloring agent that add predetermined composition mixed, blanking is cooled off becomes a work sizing material with predetermined color; (3). cut module, utilize die to cut into one above-mentioned work sizing material and have the embryo shape module of reservation shape; (4). hot-forming, after the embryo shape module matched combined with two or more different colours, shape, can be with being placed in the die cavity of a mould, the shape size of this die cavity is 1: 1 same equal proportion with finished product at the bottom of the glue of final molding, after setting predetermined firing time and temperature, can make the hot-pressing and foaming moulding in mould of embryo shape module; (5). finished product at the bottom of the glue.
Effect of the present invention mainly is utilize to add physical foaming agent, makes directly foaming in 1: 1 mould of sizing material, reaches the result of use that moulding reaches lifting product yield fast whereby.
The present invention is described in detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the flow chart of ordinary rubber foaming;
Fig. 2 is the flow chart of method for making one preferred embodiment at the bottom of the glue of 1: 1 rubber foam-in-mould of the present invention;
Fig. 3 is the schematic diagram of above-mentioned preferred embodiment, illustrates that the present invention can cut into difform embryo shape module respectively to the sizing material of different colours;
Fig. 4 is the plane of above-mentioned preferred embodiment, and finished product outward appearance at the bottom of the glue that makes behind the foaming of the present invention is described;
Fig. 5 is the plane of another preferred embodiment, illustrates that the present invention can make one and have finished product at the bottom of another glue of diversified outward appearance.
The specific embodiment
Aforementioned and other technology contents, characteristics and effect about the present invention in the detailed description of a preferred embodiment of following cooperation reference diagram, can clearly present.
Referring to shown in Figure 2, method for making is in a preferred embodiment at the bottom of the glue of 1: 1 rubber foam-in-mould of the present invention, it consists predominantly of (1). the preliminary mixing → (2). add physical foaming agent → (3). and cut module → (4). hot-forming → (5). step such as finished product at the bottom of the glue, then, again the execution situation of above-mentioned steps and correlative detail are specified in after.
(1). the preliminary mixing, measure sizing material, filler and the processing aid of predetermined ratio, in this step, the main sizing material of use is IR-2200 and BR-1220, filler and processing aid include white cigarette, softening oil and transparent zinc oxide (ZnO), and its content ratio as shown in Table 1.
Table one
| Main sizing material | (phr) | Filler and processing aid | (phr) | Bridging agent and blowing agent | (phr) |
| IR | 60 | White cigarette | 4 | S | 1 |
| BR | 40 | Softening oil | 14 | Physical blowing agent | 4 |
| ZnO | 3 | CBA | 4 | ||
| Ultra-fine white cigarette | 6 |
At first, earlier with kneader idle running 5 minutes, make machine lubricated, then above-mentioned formulated rubber material is inserted that dnockout mixes in the kneader, when the temperature of mixing in the kneader reaches 60 ℃, adding filler and processing aid again mixes, the setting temperature of mixing reaches 135 ± 5 ℃, and the time of mixing just can begin blanking after reaching 330 seconds, is cooled off by tank earlier before the blanking, can place storage with that, so far finish manufacturing of a blend glue stuff.
(2). add physical foaming agent, take out an amount of blend glue stuff one have carry out roll-in on the Luntai of roller and thin 2 ~ 3 times after, the bridging agent that adds predetermined composition ratio, physical foaming agent and coloring agent are done to mix, the content ratio of bridging agent and blowing agent is as shown in table 1, in the present embodiment, whenever take 1 kilogram blend glue stuff, the sulphur (S) that adds 8 grams is as bridging agent, and the ES-37D of 30 grams is as blowing agent, the setting time of mixing is 260 seconds, after continuing to thin 2 ~ 3 times, on Luntai that sizing material is thin with the mode bundle of playing the triangle bag, just can begin blanking, place storage by tank cooling back, this stage can be finished a work sizing material with color, and the color of this work sizing material is to decide according to the color of adding coloring agent.
(3). cut module, the dealer is according to the shape and the colour planning of product, can be with the preparation-obtained work sizing material of above-mentioned processing procedure, utilize die to cut into one and have the embryo shape module of reservation shape, referring to shown in Figure 3, present embodiment utilizes the work sizing material of two kinds of different colours, cuts into one respectively and is the housing module 10 of inverted U-shaped shape and the center module 20 of an oval in shape.
(4). hot-forming, after the housing module 10 and center module 20 mutual matched combined with above-mentioned two kinds of different colours, shape, can be with being placed in the die cavity of a mould, the shape size of this die cavity is to be 1: 1 same equal proportion with finished product at the bottom of the glue of final molding, set firing temperature at 150 ± 2 ℃, board pressure is at 145 ± 5kg/cm
2, exhaust secondary (10 seconds, 12 seconds), the firing time can make housing module 10 and center module 20 foaming-formed in mould at 240 ~ 300 seconds.
(5). finished product at the bottom of the glue, referring to shown in Figure 4, can take out at the bottom of the glue 30 after the demoulding, 30 after completing at the bottom of this glue, be that shape, size all have been the specification of finished product, can be sticked at the place, the place ahead of a sole 100,30 work that do not need additionally to do again cooling and shaping at the bottom of the glue, and 30 outward appearance is according to shape, color and the assembling position of aforementioned housing module 10 and center module 20 at the bottom of this glue, obviously be distinguished into the outer frame 31 and the central part 32 of two kinds of different colours, make at the bottom of the whole glue 30 to have the beautiful appearance of suitable novelty.
More than be the general introduction of the every step of method for making at the bottom of the glue of 1: 1 rubber foam-in-mould of the present invention, the above-mentioned forming technique of utilization the present invention can be produced finished product at the bottom of the glue that outward appearance has more diversified effect.
See also shown in Figure 5,40 include a forefoot block 41 at the bottom of the glue of another embodiment of the present invention, one rear heel block 42 and one is connected in forefoot and rear heel two big blocks 41, the grid block 43 at place in the middle of 42, forefoot block 41 all is to utilize method for making of the present invention to make with rear heel block 42, according to its design, need use a center module 411 (421), one is around in center module 411 (421) intermediate module 412 (422) all around, and the housing module 413 (423) of 40 profiles at the bottom of the moulding plastic emitting, the color of above-mentioned each component models and shape are all inequality, and it is complicated and have 40 products at the bottom of the glue of various pattern to finish this moulding by forming technique of the present invention.
In sum, method for making mainly is in order to solve the problem of ordinary rubber foaming processing procedure at the bottom of the glue of 1: 1 rubber foam-in-mould of the present invention, the technological means that the present invention adopts mainly is to add a physical foaming agent in sizing material, this physical foaming agent can make sizing material in mould during hot-pressing and foaming, fully according to the moulding in 1: 1 of die cavity shape, do not have the problem that volume contraction changes, therefore can save unnecessary contraction shaping time, procedure for processing is quite quick, after the present invention finishes the hot-pressing and foaming step, resulting product is exactly finished size, the fine ratio of product of product is high, can effectively reduce manufacturing cost, and can produce complicated diversified appearance style according to processing procedure means of the present invention, make the glue that the present invention makes at the bottom of finished product have better commercial competitiveness.
Claims (5)
1. method for making at the bottom of the glue of 1: 1 rubber foam-in-mould is characterized in that comprising the following step:
(1). the preliminary mixing, measure sizing material, filler and the processing aid of predetermined ratio, above-mentioned raw materials to be inserted in the kneader mix dnockout, after the time and temperature of the predetermined dnockout of setting, the blanking cooling becomes a blend glue stuff;
(2). add physical foaming agent, takes out an amount of blend glue stuff and thin on a Luntai, and after the bridging agent, physical foaming agent and the coloring agent that add predetermined composition mixed, blanking is cooled off becomes a work sizing material with predetermined color;
(3). cut module, utilize die to cut into one above-mentioned work sizing material and have the embryo shape module of reservation shape;
(4). hot-forming, after the embryo shape module matched combined with two or more different colours, shape, can be with being placed in the die cavity of a mould, the shape size of this die cavity is 1: 1 same equal proportion with finished product at the bottom of the glue of final molding, after setting predetermined firing time and temperature, can make the hot-pressing and foaming moulding in mould of embryo shape module;
(5). finished product at the bottom of the glue.
2. method for making at the bottom of the glue of 1: 1 as claimed in claim 1 rubber foam-in-mould is characterized in that: employed filler and processing aid include white cigarette, softening oil and transparent zinc oxide in preliminary blend step.
3. method for making at the bottom of the glue of 1: 1 as claimed in claim 1 rubber foam-in-mould, it is characterized in that: in preliminary blend step, this rubber mass piece is when reaching 60 ℃ in kneader, adding filler and processing aid again mixes, the temperature of mixing reaches 135 ± 5 ℃, the time of mixing begins blanking when reaching 330 seconds, place storage by tank cooling back.
4. method for making at the bottom of the glue of 1: 1 as claimed in claim 1 rubber foam-in-mould, it is characterized in that: in the step of adding physical foaming agent, whenever take 1 kilogram blend glue stuff, add the bridging agent of 8 grams and the blowing agent of 30 grams, mix 260 seconds time, the thin twice back blanking of bundle placed storage by tank cooling back.
5. method for making at the bottom of the glue of 1: 1 as claimed in claim 1 rubber foam-in-mould is characterized in that: in hot-forming step, set firing temperature at 150 ± 2 ℃, board pressure is at 145 ± 5kg/cm
2, the firing time was at 240 ~ 300 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410097586 CN1785645A (en) | 2004-12-09 | 2004-12-09 | Manufacturing method of 1:1 rubber mould internal foamed rubber base |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410097586 CN1785645A (en) | 2004-12-09 | 2004-12-09 | Manufacturing method of 1:1 rubber mould internal foamed rubber base |
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| CN1785645A true CN1785645A (en) | 2006-06-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040751B (en) * | 2009-11-30 | 2012-05-23 | 晋江成昌鞋业有限公司 | Foaming rubber composite material in die |
| CN102689392A (en) * | 2012-05-29 | 2012-09-26 | 龙口阳光机械设备有限公司 | Method for producing extruded polystyrene foam products by carbon dioxide foaming agent |
| CN103817964A (en) * | 2014-01-18 | 2014-05-28 | 福建省晋江市中利鞋材有限公司 | Production method of EVA (ethylene vinyl acetute) multicolor sole |
| CN111186070A (en) * | 2020-02-11 | 2020-05-22 | 刘林杰 | Latex backwashing foaming rubber processing system based on hevea trees |
-
2004
- 2004-12-09 CN CN 200410097586 patent/CN1785645A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040751B (en) * | 2009-11-30 | 2012-05-23 | 晋江成昌鞋业有限公司 | Foaming rubber composite material in die |
| CN102689392A (en) * | 2012-05-29 | 2012-09-26 | 龙口阳光机械设备有限公司 | Method for producing extruded polystyrene foam products by carbon dioxide foaming agent |
| CN102689392B (en) * | 2012-05-29 | 2015-07-29 | 龙口阳光机械设备有限公司 | A kind of method adopting carbon dioxide foaming agent to produce polystyrene extruded plastic foam goods |
| CN103817964A (en) * | 2014-01-18 | 2014-05-28 | 福建省晋江市中利鞋材有限公司 | Production method of EVA (ethylene vinyl acetute) multicolor sole |
| CN111186070A (en) * | 2020-02-11 | 2020-05-22 | 刘林杰 | Latex backwashing foaming rubber processing system based on hevea trees |
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